contrib/elftoolchain/readelf/readelf.c

   1 /*-
   2  * Copyright (c) 2009-2015 Kai Wang
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/param.h>
  28 #include <sys/queue.h>
  29 #include <ar.h>
  30 #include <assert.h>
  31 #include <ctype.h>
  32 #include <dwarf.h>
  33 #include <err.h>
  34 #include <fcntl.h>
  35 #include <gelf.h>
  36 #include <getopt.h>
  37 #include <libdwarf.h>
  38 #include <libelftc.h>
  39 #include <libgen.h>
  40 #include <stdarg.h>
  41 #include <stdint.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <time.h>
  46 #include <unistd.h>
  47
  48 #include "_elftc.h"
  49
  50 ELFTC_VCSID("$Id: readelf.c 3649 2018-11-24 03:26:23Z emaste $");
  51
  52 /* Backwards compatability for older FreeBSD releases. */
  53 #ifndef STB_GNU_UNIQUE
  54 #define STB_GNU_UNIQUE 10
  55 #endif
  56 #ifndef STT_SPARC_REGISTER
  57 #define STT_SPARC_REGISTER 13
  58 #endif
  59
  60
  61 /*
  62  * readelf(1) options.
  63  */
  64 #define RE_AA   0x00000001
  65 #define RE_C    0x00000002
  66 #define RE_DD   0x00000004
  67 #define RE_D    0x00000008
  68 #define RE_G    0x00000010
  69 #define RE_H    0x00000020
  70 #define RE_II   0x00000040
  71 #define RE_I    0x00000080
  72 #define RE_L    0x00000100
  73 #define RE_NN   0x00000200
  74 #define RE_N    0x00000400
  75 #define RE_P    0x00000800
  76 #define RE_R    0x00001000
  77 #define RE_SS   0x00002000
  78 #define RE_S    0x00004000
  79 #define RE_T    0x00008000
  80 #define RE_U    0x00010000
  81 #define RE_VV   0x00020000
  82 #define RE_WW   0x00040000
  83 #define RE_W    0x00080000
  84 #define RE_X    0x00100000
  85
  86 /*
  87  * dwarf dump options.
  88  */
  89 #define DW_A    0x00000001
  90 #define DW_FF   0x00000002
  91 #define DW_F    0x00000004
  92 #define DW_I    0x00000008
  93 #define DW_LL   0x00000010
  94 #define DW_L    0x00000020
  95 #define DW_M    0x00000040
  96 #define DW_O    0x00000080
  97 #define DW_P    0x00000100
  98 #define DW_RR   0x00000200
  99 #define DW_R    0x00000400
 100 #define DW_S    0x00000800
 101
 102 #define DW_DEFAULT_OPTIONS (DW_A | DW_F | DW_I | DW_L | DW_O | DW_P | \
 103             DW_R | DW_RR | DW_S)
 104
 105 /*
 106  * readelf(1) run control flags.
 107  */
 108 #define DISPLAY_FILENAME        0x0001
 109
 110 /*
 111  * Internal data structure for sections.
 112  */
 113 struct section {
 114         const char      *name;          /* section name */
 115         Elf_Scn         *scn;           /* section scn */
 116         uint64_t         off;           /* section offset */
 117         uint64_t         sz;            /* section size */
 118         uint64_t         entsize;       /* section entsize */
 119         uint64_t         align;         /* section alignment */
 120         uint64_t         type;          /* section type */
 121         uint64_t         flags;         /* section flags */
 122         uint64_t         addr;          /* section virtual addr */
 123         uint32_t         link;          /* section link ndx */
 124         uint32_t         info;          /* section info ndx */
 125 };
 126
 127 struct dumpop {
 128         union {
 129                 size_t si;              /* section index */
 130                 const char *sn;         /* section name */
 131         } u;
 132         enum {
 133                 DUMP_BY_INDEX = 0,
 134                 DUMP_BY_NAME
 135         } type;                         /* dump type */
 136 #define HEX_DUMP        0x0001
 137 #define STR_DUMP        0x0002
 138         int op;                         /* dump operation */
 139         STAILQ_ENTRY(dumpop) dumpop_list;
 140 };
 141
 142 struct symver {
 143         const char *name;
 144         int type;
 145 };
 146
 147 /*
 148  * Structure encapsulates the global data for readelf(1).
 149  */
 150 struct readelf {
 151         const char       *filename;     /* current processing file. */
 152         int               options;      /* command line options. */
 153         int               flags;        /* run control flags. */
 154         int               dop;          /* dwarf dump options. */
 155         Elf              *elf;          /* underlying ELF descriptor. */
 156         Elf              *ar;           /* archive ELF descriptor. */
 157         Dwarf_Debug       dbg;          /* DWARF handle. */
 158         Dwarf_Half        cu_psize;     /* DWARF CU pointer size. */
 159         Dwarf_Half        cu_osize;     /* DWARF CU offset size. */
 160         Dwarf_Half        cu_ver;       /* DWARF CU version. */
 161         GElf_Ehdr         ehdr;         /* ELF header. */
 162         int               ec;           /* ELF class. */
 163         size_t            shnum;        /* #sections. */
 164         struct section   *vd_s;         /* Verdef section. */
 165         struct section   *vn_s;         /* Verneed section. */
 166         struct section   *vs_s;         /* Versym section. */
 167         uint16_t         *vs;           /* Versym array. */
 168         int               vs_sz;        /* Versym array size. */
 169         struct symver    *ver;          /* Version array. */
 170         int               ver_sz;       /* Size of version array. */
 171         struct section   *sl;           /* list of sections. */
 172         STAILQ_HEAD(, dumpop) v_dumpop; /* list of dump ops. */
 173         uint64_t        (*dw_read)(Elf_Data *, uint64_t *, int);
 174         uint64_t        (*dw_decode)(uint8_t **, int);
 175 };
 176
 177 enum options
 178 {
 179         OPTION_DEBUG_DUMP
 180 };
 181
 182 static struct option longopts[] = {
 183         {"all", no_argument, NULL, 'a'},
 184         {"arch-specific", no_argument, NULL, 'A'},
 185         {"archive-index", no_argument, NULL, 'c'},
 186         {"debug-dump", optional_argument, NULL, OPTION_DEBUG_DUMP},
 187         {"dynamic", no_argument, NULL, 'd'},
 188         {"file-header", no_argument, NULL, 'h'},
 189         {"full-section-name", no_argument, NULL, 'N'},
 190         {"headers", no_argument, NULL, 'e'},
 191         {"help", no_argument, 0, 'H'},
 192         {"hex-dump", required_argument, NULL, 'x'},
 193         {"histogram", no_argument, NULL, 'I'},
 194         {"notes", no_argument, NULL, 'n'},
 195         {"program-headers", no_argument, NULL, 'l'},
 196         {"relocs", no_argument, NULL, 'r'},
 197         {"sections", no_argument, NULL, 'S'},
 198         {"section-headers", no_argument, NULL, 'S'},
 199         {"section-groups", no_argument, NULL, 'g'},
 200         {"section-details", no_argument, NULL, 't'},
 201         {"segments", no_argument, NULL, 'l'},
 202         {"string-dump", required_argument, NULL, 'p'},
 203         {"symbols", no_argument, NULL, 's'},
 204         {"syms", no_argument, NULL, 's'},
 205         {"unwind", no_argument, NULL, 'u'},
 206         {"use-dynamic", no_argument, NULL, 'D'},
 207         {"version-info", no_argument, 0, 'V'},
 208         {"version", no_argument, 0, 'v'},
 209         {"wide", no_argument, 0, 'W'},
 210         {NULL, 0, NULL, 0}
 211 };
 212
 213 struct eflags_desc {
 214         uint64_t flag;
 215         const char *desc;
 216 };
 217
 218 struct mips_option {
 219         uint64_t flag;
 220         const char *desc;
 221 };
 222
 223 struct flag_desc {
 224         uint64_t flag;
 225         const char *desc;
 226 };
 227
 228 struct loc_at {
 229         Dwarf_Attribute la_at;
 230         Dwarf_Unsigned la_off;
 231         Dwarf_Unsigned la_lowpc;
 232         Dwarf_Half la_cu_psize;
 233         Dwarf_Half la_cu_osize;
 234         Dwarf_Half la_cu_ver;
 235 };
 236
 237 static void add_dumpop(struct readelf *re, size_t si, const char *sn, int op,
 238     int t);
 239 static const char *aeabi_adv_simd_arch(uint64_t simd);
 240 static const char *aeabi_align_needed(uint64_t an);
 241 static const char *aeabi_align_preserved(uint64_t ap);
 242 static const char *aeabi_arm_isa(uint64_t ai);
 243 static const char *aeabi_cpu_arch(uint64_t arch);
 244 static const char *aeabi_cpu_arch_profile(uint64_t pf);
 245 static const char *aeabi_div(uint64_t du);
 246 static const char *aeabi_enum_size(uint64_t es);
 247 static const char *aeabi_fp_16bit_format(uint64_t fp16);
 248 static const char *aeabi_fp_arch(uint64_t fp);
 249 static const char *aeabi_fp_denormal(uint64_t fd);
 250 static const char *aeabi_fp_exceptions(uint64_t fe);
 251 static const char *aeabi_fp_hpext(uint64_t fh);
 252 static const char *aeabi_fp_number_model(uint64_t fn);
 253 static const char *aeabi_fp_optm_goal(uint64_t fog);
 254 static const char *aeabi_fp_rounding(uint64_t fr);
 255 static const char *aeabi_hardfp(uint64_t hfp);
 256 static const char *aeabi_mpext(uint64_t mp);
 257 static const char *aeabi_optm_goal(uint64_t og);
 258 static const char *aeabi_pcs_config(uint64_t pcs);
 259 static const char *aeabi_pcs_got(uint64_t got);
 260 static const char *aeabi_pcs_r9(uint64_t r9);
 261 static const char *aeabi_pcs_ro(uint64_t ro);
 262 static const char *aeabi_pcs_rw(uint64_t rw);
 263 static const char *aeabi_pcs_wchar_t(uint64_t wt);
 264 static const char *aeabi_t2ee(uint64_t t2ee);
 265 static const char *aeabi_thumb_isa(uint64_t ti);
 266 static const char *aeabi_fp_user_exceptions(uint64_t fu);
 267 static const char *aeabi_unaligned_access(uint64_t ua);
 268 static const char *aeabi_vfp_args(uint64_t va);
 269 static const char *aeabi_virtual(uint64_t vt);
 270 static const char *aeabi_wmmx_arch(uint64_t wmmx);
 271 static const char *aeabi_wmmx_args(uint64_t wa);
 272 static const char *elf_class(unsigned int class);
 273 static const char *elf_endian(unsigned int endian);
 274 static const char *elf_machine(unsigned int mach);
 275 static const char *elf_osabi(unsigned int abi);
 276 static const char *elf_type(unsigned int type);
 277 static const char *elf_ver(unsigned int ver);
 278 static const char *dt_type(unsigned int mach, unsigned int dtype);
 279 static void dump_ar(struct readelf *re, int);
 280 static void dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
 281 static void dump_attributes(struct readelf *re);
 282 static uint8_t *dump_compatibility_tag(uint8_t *p, uint8_t *pe);
 283 static void dump_dwarf(struct readelf *re);
 284 static void dump_dwarf_abbrev(struct readelf *re);
 285 static void dump_dwarf_aranges(struct readelf *re);
 286 static void dump_dwarf_block(struct readelf *re, uint8_t *b,
 287     Dwarf_Unsigned len);
 288 static void dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level);
 289 static void dump_dwarf_frame(struct readelf *re, int alt);
 290 static void dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie,
 291     uint8_t *insts, Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf,
 292     Dwarf_Addr pc, Dwarf_Debug dbg);
 293 static int dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde,
 294     Dwarf_Addr pc, Dwarf_Unsigned func_len, Dwarf_Half cie_ra);
 295 static void dump_dwarf_frame_section(struct readelf *re, struct section *s,
 296     int alt);
 297 static void dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info);
 298 static void dump_dwarf_macinfo(struct readelf *re);
 299 static void dump_dwarf_line(struct readelf *re);
 300 static void dump_dwarf_line_decoded(struct readelf *re);
 301 static void dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr);
 302 static void dump_dwarf_loclist(struct readelf *re);
 303 static void dump_dwarf_pubnames(struct readelf *re);
 304 static void dump_dwarf_ranges(struct readelf *re);
 305 static void dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die,
 306     Dwarf_Addr base);
 307 static void dump_dwarf_str(struct readelf *re);
 308 static void dump_eflags(struct readelf *re, uint64_t e_flags);
 309 static void dump_elf(struct readelf *re);
 310 static void dump_flags(struct flag_desc *fd, uint64_t flags);
 311 static void dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab);
 312 static void dump_dynamic(struct readelf *re);
 313 static void dump_liblist(struct readelf *re);
 314 static void dump_mips_abiflags(struct readelf *re, struct section *s);
 315 static void dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
 316 static void dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz);
 317 static void dump_mips_options(struct readelf *re, struct section *s);
 318 static void dump_mips_option_flags(const char *name, struct mips_option *opt,
 319     uint64_t info);
 320 static void dump_mips_reginfo(struct readelf *re, struct section *s);
 321 static void dump_mips_specific_info(struct readelf *re);
 322 static void dump_notes(struct readelf *re);
 323 static void dump_notes_content(struct readelf *re, const char *buf, size_t sz,
 324     off_t off);
 325 static void dump_notes_data(const char *name, uint32_t type, const char *buf,
 326     size_t sz);
 327 static void dump_svr4_hash(struct section *s);
 328 static void dump_svr4_hash64(struct readelf *re, struct section *s);
 329 static void dump_gnu_hash(struct readelf *re, struct section *s);
 330 static void dump_hash(struct readelf *re);
 331 static void dump_phdr(struct readelf *re);
 332 static void dump_ppc_attributes(uint8_t *p, uint8_t *pe);
 333 static void dump_section_groups(struct readelf *re);
 334 static void dump_symtab(struct readelf *re, int i);
 335 static void dump_symtabs(struct readelf *re);
 336 static uint8_t *dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe);
 337 static void dump_ver(struct readelf *re);
 338 static void dump_verdef(struct readelf *re, int dump);
 339 static void dump_verneed(struct readelf *re, int dump);
 340 static void dump_versym(struct readelf *re);
 341 static const char *dwarf_reg(unsigned int mach, unsigned int reg);
 342 static const char *dwarf_regname(struct readelf *re, unsigned int num);
 343 static struct dumpop *find_dumpop(struct readelf *re, size_t si,
 344     const char *sn, int op, int t);
 345 static int get_ent_count(struct section *s, int *ent_count);
 346 static int get_mips_register_size(uint8_t flag);
 347 static char *get_regoff_str(struct readelf *re, Dwarf_Half reg,
 348     Dwarf_Addr off);
 349 static const char *get_string(struct readelf *re, int strtab, size_t off);
 350 static const char *get_symbol_name(struct readelf *re, int symtab, int i);
 351 static uint64_t get_symbol_value(struct readelf *re, int symtab, int i);
 352 static void load_sections(struct readelf *re);
 353 static int loc_at_comparator(const void *la1, const void *la2);
 354 static const char *mips_abi_fp(uint64_t fp);
 355 static const char *note_type(const char *note_name, unsigned int et,
 356     unsigned int nt);
 357 static const char *note_type_freebsd(unsigned int nt);
 358 static const char *note_type_freebsd_core(unsigned int nt);
 359 static const char *note_type_linux_core(unsigned int nt);
 360 static const char *note_type_gnu(unsigned int nt);
 361 static const char *note_type_netbsd(unsigned int nt);
 362 static const char *note_type_openbsd(unsigned int nt);
 363 static const char *note_type_unknown(unsigned int nt);
 364 static const char *note_type_xen(unsigned int nt);
 365 static const char *option_kind(uint8_t kind);
 366 static const char *phdr_type(unsigned int mach, unsigned int ptype);
 367 static const char *ppc_abi_fp(uint64_t fp);
 368 static const char *ppc_abi_vector(uint64_t vec);
 369 static void readelf_usage(int status);
 370 static void readelf_version(void);
 371 static void search_loclist_at(struct readelf *re, Dwarf_Die die,
 372     Dwarf_Unsigned lowpc, struct loc_at **la_list,
 373     size_t *la_list_len, size_t *la_list_cap);
 374 static void search_ver(struct readelf *re);
 375 static const char *section_type(unsigned int mach, unsigned int stype);
 376 static void set_cu_context(struct readelf *re, Dwarf_Half psize,
 377     Dwarf_Half osize, Dwarf_Half ver);
 378 static const char *st_bind(unsigned int sbind);
 379 static const char *st_shndx(unsigned int shndx);
 380 static const char *st_type(unsigned int mach, unsigned int os,
 381     unsigned int stype);
 382 static const char *st_vis(unsigned int svis);
 383 static const char *top_tag(unsigned int tag);
 384 static void unload_sections(struct readelf *re);
 385 static uint64_t _read_lsb(Elf_Data *d, uint64_t *offsetp,
 386     int bytes_to_read);
 387 static uint64_t _read_msb(Elf_Data *d, uint64_t *offsetp,
 388     int bytes_to_read);
 389 static uint64_t _decode_lsb(uint8_t **data, int bytes_to_read);
 390 static uint64_t _decode_msb(uint8_t **data, int bytes_to_read);
 391 static int64_t _decode_sleb128(uint8_t **dp, uint8_t *dpe);
 392 static uint64_t _decode_uleb128(uint8_t **dp, uint8_t *dpe);
 393
 394 static struct eflags_desc arm_eflags_desc[] = {
 395         {EF_ARM_RELEXEC, "relocatable executable"},
 396         {EF_ARM_HASENTRY, "has entry point"},
 397         {EF_ARM_SYMSARESORTED, "sorted symbol tables"},
 398         {EF_ARM_DYNSYMSUSESEGIDX, "dynamic symbols use segment index"},
 399         {EF_ARM_MAPSYMSFIRST, "mapping symbols precede others"},
 400         {EF_ARM_BE8, "BE8"},
 401         {EF_ARM_LE8, "LE8"},
 402         {EF_ARM_INTERWORK, "interworking enabled"},
 403         {EF_ARM_APCS_26, "uses APCS/26"},
 404         {EF_ARM_APCS_FLOAT, "uses APCS/float"},
 405         {EF_ARM_PIC, "position independent"},
 406         {EF_ARM_ALIGN8, "8 bit structure alignment"},
 407         {EF_ARM_NEW_ABI, "uses new ABI"},
 408         {EF_ARM_OLD_ABI, "uses old ABI"},
 409         {EF_ARM_SOFT_FLOAT, "software FP"},
 410         {EF_ARM_VFP_FLOAT, "VFP"},
 411         {EF_ARM_MAVERICK_FLOAT, "Maverick FP"},
 412         {0, NULL}
 413 };
 414
 415 static struct eflags_desc mips_eflags_desc[] = {
 416         {EF_MIPS_NOREORDER, "noreorder"},
 417         {EF_MIPS_PIC, "pic"},
 418         {EF_MIPS_CPIC, "cpic"},
 419         {EF_MIPS_UCODE, "ugen_reserved"},
 420         {EF_MIPS_ABI2, "abi2"},
 421         {EF_MIPS_OPTIONS_FIRST, "odk first"},
 422         {EF_MIPS_ARCH_ASE_MDMX, "mdmx"},
 423         {EF_MIPS_ARCH_ASE_M16, "mips16"},
 424         {0, NULL}
 425 };
 426
 427 static struct eflags_desc powerpc_eflags_desc[] = {
 428         {EF_PPC_EMB, "emb"},
 429         {EF_PPC_RELOCATABLE, "relocatable"},
 430         {EF_PPC_RELOCATABLE_LIB, "relocatable-lib"},
 431         {0, NULL}
 432 };
 433
 434 static struct eflags_desc riscv_eflags_desc[] = {
 435         {EF_RISCV_RVC, "RVC"},
 436         {EF_RISCV_RVE, "RVE"},
 437         {EF_RISCV_TSO, "TSO"},
 438         {0, NULL}
 439 };
 440
 441 static struct eflags_desc sparc_eflags_desc[] = {
 442         {EF_SPARC_32PLUS, "v8+"},
 443         {EF_SPARC_SUN_US1, "ultrasparcI"},
 444         {EF_SPARC_HAL_R1, "halr1"},
 445         {EF_SPARC_SUN_US3, "ultrasparcIII"},
 446         {0, NULL}
 447 };
 448
 449 static const char *
 450 elf_osabi(unsigned int abi)
 451 {
 452         static char s_abi[32];
 453
 454         switch(abi) {
 455         case ELFOSABI_NONE: return "NONE";
 456         case ELFOSABI_HPUX: return "HPUX";
 457         case ELFOSABI_NETBSD: return "NetBSD";
 458         case ELFOSABI_GNU: return "GNU";
 459         case ELFOSABI_HURD: return "HURD";
 460         case ELFOSABI_86OPEN: return "86OPEN";
 461         case ELFOSABI_SOLARIS: return "Solaris";
 462         case ELFOSABI_AIX: return "AIX";
 463         case ELFOSABI_IRIX: return "IRIX";
 464         case ELFOSABI_FREEBSD: return "FreeBSD";
 465         case ELFOSABI_TRU64: return "TRU64";
 466         case ELFOSABI_MODESTO: return "MODESTO";
 467         case ELFOSABI_OPENBSD: return "OpenBSD";
 468         case ELFOSABI_OPENVMS: return "OpenVMS";
 469         case ELFOSABI_NSK: return "NSK";
 470         case ELFOSABI_CLOUDABI: return "CloudABI";
 471         case ELFOSABI_ARM_AEABI: return "ARM EABI";
 472         case ELFOSABI_ARM: return "ARM";
 473         case ELFOSABI_STANDALONE: return "StandAlone";
 474         default:
 475                 snprintf(s_abi, sizeof(s_abi), "<unknown: %#x>", abi);
 476                 return (s_abi);
 477         }
 478 };
 479
 480 static const char *
 481 elf_machine(unsigned int mach)
 482 {
 483         static char s_mach[32];
 484
 485         switch (mach) {
 486         case EM_NONE: return "Unknown machine";
 487         case EM_M32: return "AT&T WE32100";
 488         case EM_SPARC: return "Sun SPARC";
 489         case EM_386: return "Intel i386";
 490         case EM_68K: return "Motorola 68000";
 491         case EM_IAMCU: return "Intel MCU";
 492         case EM_88K: return "Motorola 88000";
 493         case EM_860: return "Intel i860";
 494         case EM_MIPS: return "MIPS R3000 Big-Endian only";
 495         case EM_S370: return "IBM System/370";
 496         case EM_MIPS_RS3_LE: return "MIPS R3000 Little-Endian";
 497         case EM_PARISC: return "HP PA-RISC";
 498         case EM_VPP500: return "Fujitsu VPP500";
 499         case EM_SPARC32PLUS: return "SPARC v8plus";
 500         case EM_960: return "Intel 80960";
 501         case EM_PPC: return "PowerPC 32-bit";
 502         case EM_PPC64: return "PowerPC 64-bit";
 503         case EM_S390: return "IBM System/390";
 504         case EM_V800: return "NEC V800";
 505         case EM_FR20: return "Fujitsu FR20";
 506         case EM_RH32: return "TRW RH-32";
 507         case EM_RCE: return "Motorola RCE";
 508         case EM_ARM: return "ARM";
 509         case EM_SH: return "Hitachi SH";
 510         case EM_SPARCV9: return "SPARC v9 64-bit";
 511         case EM_TRICORE: return "Siemens TriCore embedded processor";
 512         case EM_ARC: return "Argonaut RISC Core";
 513         case EM_H8_300: return "Hitachi H8/300";
 514         case EM_H8_300H: return "Hitachi H8/300H";
 515         case EM_H8S: return "Hitachi H8S";
 516         case EM_H8_500: return "Hitachi H8/500";
 517         case EM_IA_64: return "Intel IA-64 Processor";
 518         case EM_MIPS_X: return "Stanford MIPS-X";
 519         case EM_COLDFIRE: return "Motorola ColdFire";
 520         case EM_68HC12: return "Motorola M68HC12";
 521         case EM_MMA: return "Fujitsu MMA";
 522         case EM_PCP: return "Siemens PCP";
 523         case EM_NCPU: return "Sony nCPU";
 524         case EM_NDR1: return "Denso NDR1 microprocessor";
 525         case EM_STARCORE: return "Motorola Star*Core processor";
 526         case EM_ME16: return "Toyota ME16 processor";
 527         case EM_ST100: return "STMicroelectronics ST100 processor";
 528         case EM_TINYJ: return "Advanced Logic Corp. TinyJ processor";
 529         case EM_X86_64: return "Advanced Micro Devices x86-64";
 530         case EM_PDSP: return "Sony DSP Processor";
 531         case EM_FX66: return "Siemens FX66 microcontroller";
 532         case EM_ST9PLUS: return "STMicroelectronics ST9+ 8/16 microcontroller";
 533         case EM_ST7: return "STmicroelectronics ST7 8-bit microcontroller";
 534         case EM_68HC16: return "Motorola MC68HC16 microcontroller";
 535         case EM_68HC11: return "Motorola MC68HC11 microcontroller";
 536         case EM_68HC08: return "Motorola MC68HC08 microcontroller";
 537         case EM_68HC05: return "Motorola MC68HC05 microcontroller";
 538         case EM_SVX: return "Silicon Graphics SVx";
 539         case EM_ST19: return "STMicroelectronics ST19 8-bit mc";
 540         case EM_VAX: return "Digital VAX";
 541         case EM_CRIS: return "Axis Communications 32-bit embedded processor";
 542         case EM_JAVELIN: return "Infineon Tech. 32bit embedded processor";
 543         case EM_FIREPATH: return "Element 14 64-bit DSP Processor";
 544         case EM_ZSP: return "LSI Logic 16-bit DSP Processor";
 545         case EM_MMIX: return "Donald Knuth's educational 64-bit proc";
 546         case EM_HUANY: return "Harvard University MI object files";
 547         case EM_PRISM: return "SiTera Prism";
 548         case EM_AVR: return "Atmel AVR 8-bit microcontroller";
 549         case EM_FR30: return "Fujitsu FR30";
 550         case EM_D10V: return "Mitsubishi D10V";
 551         case EM_D30V: return "Mitsubishi D30V";
 552         case EM_V850: return "NEC v850";
 553         case EM_M32R: return "Mitsubishi M32R";
 554         case EM_MN10300: return "Matsushita MN10300";
 555         case EM_MN10200: return "Matsushita MN10200";
 556         case EM_PJ: return "picoJava";
 557         case EM_OPENRISC: return "OpenRISC 32-bit embedded processor";
 558         case EM_ARC_A5: return "ARC Cores Tangent-A5";
 559         case EM_XTENSA: return "Tensilica Xtensa Architecture";
 560         case EM_VIDEOCORE: return "Alphamosaic VideoCore processor";
 561         case EM_TMM_GPP: return "Thompson Multimedia General Purpose Processor";
 562         case EM_NS32K: return "National Semiconductor 32000 series";
 563         case EM_TPC: return "Tenor Network TPC processor";
 564         case EM_SNP1K: return "Trebia SNP 1000 processor";
 565         case EM_ST200: return "STMicroelectronics ST200 microcontroller";
 566         case EM_IP2K: return "Ubicom IP2xxx microcontroller family";
 567         case EM_MAX: return "MAX Processor";
 568         case EM_CR: return "National Semiconductor CompactRISC microprocessor";
 569         case EM_F2MC16: return "Fujitsu F2MC16";
 570         case EM_MSP430: return "TI embedded microcontroller msp430";
 571         case EM_BLACKFIN: return "Analog Devices Blackfin (DSP) processor";
 572         case EM_SE_C33: return "S1C33 Family of Seiko Epson processors";
 573         case EM_SEP: return "Sharp embedded microprocessor";
 574         case EM_ARCA: return "Arca RISC Microprocessor";
 575         case EM_UNICORE: return "Microprocessor series from PKU-Unity Ltd";
 576         case EM_AARCH64: return "AArch64";
 577         case EM_RISCV: return "RISC-V";
 578         default:
 579                 snprintf(s_mach, sizeof(s_mach), "<unknown: %#x>", mach);
 580                 return (s_mach);
 581         }
 582
 583 }
 584
 585 static const char *
 586 elf_class(unsigned int class)
 587 {
 588         static char s_class[32];
 589
 590         switch (class) {
 591         case ELFCLASSNONE: return "none";
 592         case ELFCLASS32: return "ELF32";
 593         case ELFCLASS64: return "ELF64";
 594         default:
 595                 snprintf(s_class, sizeof(s_class), "<unknown: %#x>", class);
 596                 return (s_class);
 597         }
 598 }
 599
 600 static const char *
 601 elf_endian(unsigned int endian)
 602 {
 603         static char s_endian[32];
 604
 605         switch (endian) {
 606         case ELFDATANONE: return "none";
 607         case ELFDATA2LSB: return "2's complement, little endian";
 608         case ELFDATA2MSB: return "2's complement, big endian";
 609         default:
 610                 snprintf(s_endian, sizeof(s_endian), "<unknown: %#x>", endian);
 611                 return (s_endian);
 612         }
 613 }
 614
 615 static const char *
 616 elf_type(unsigned int type)
 617 {
 618         static char s_type[32];
 619
 620         switch (type) {
 621         case ET_NONE: return "NONE (None)";
 622         case ET_REL: return "REL (Relocatable file)";
 623         case ET_EXEC: return "EXEC (Executable file)";
 624         case ET_DYN: return "DYN (Shared object file)";
 625         case ET_CORE: return "CORE (Core file)";
 626         default:
 627                 if (type >= ET_LOPROC)
 628                         snprintf(s_type, sizeof(s_type), "<proc: %#x>", type);
 629                 else if (type >= ET_LOOS && type <= ET_HIOS)
 630                         snprintf(s_type, sizeof(s_type), "<os: %#x>", type);
 631                 else
 632                         snprintf(s_type, sizeof(s_type), "<unknown: %#x>",
 633                             type);
 634                 return (s_type);
 635         }
 636 }
 637
 638 static const char *
 639 elf_ver(unsigned int ver)
 640 {
 641         static char s_ver[32];
 642
 643         switch (ver) {
 644         case EV_CURRENT: return "(current)";
 645         case EV_NONE: return "(none)";
 646         default:
 647                 snprintf(s_ver, sizeof(s_ver), "<unknown: %#x>",
 648                     ver);
 649                 return (s_ver);
 650         }
 651 }
 652
 653 static const char *
 654 phdr_type(unsigned int mach, unsigned int ptype)
 655 {
 656         static char s_ptype[32];
 657
 658         if (ptype >= PT_LOPROC && ptype <= PT_HIPROC) {
 659                 switch (mach) {
 660                 case EM_ARM:
 661                         switch (ptype) {
 662                         case PT_ARM_ARCHEXT: return "ARM_ARCHEXT";
 663                         case PT_ARM_EXIDX: return "ARM_EXIDX";
 664                         }
 665                         break;
 666                 }
 667                 snprintf(s_ptype, sizeof(s_ptype), "LOPROC+%#x",
 668                     ptype - PT_LOPROC);
 669                 return (s_ptype);
 670         }
 671
 672         switch (ptype) {
 673         case PT_NULL: return "NULL";
 674         case PT_LOAD: return "LOAD";
 675         case PT_DYNAMIC: return "DYNAMIC";
 676         case PT_INTERP: return "INTERP";
 677         case PT_NOTE: return "NOTE";
 678         case PT_SHLIB: return "SHLIB";
 679         case PT_PHDR: return "PHDR";
 680         case PT_TLS: return "TLS";
 681         case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
 682         case PT_GNU_STACK: return "GNU_STACK";
 683         case PT_GNU_RELRO: return "GNU_RELRO";
 684         case PT_OPENBSD_RANDOMIZE: return "OPENBSD_RANDOMIZE";
 685         case PT_OPENBSD_WXNEEDED: return "OPENBSD_WXNEEDED";
 686         case PT_OPENBSD_BOOTDATA: return "OPENBSD_BOOTDATA";
 687         default:
 688                 if (ptype >= PT_LOOS && ptype <= PT_HIOS)
 689                         snprintf(s_ptype, sizeof(s_ptype), "LOOS+%#x",
 690                             ptype - PT_LOOS);
 691                 else
 692                         snprintf(s_ptype, sizeof(s_ptype), "<unknown: %#x>",
 693                             ptype);
 694                 return (s_ptype);
 695         }
 696 }
 697
 698 static const char *
 699 section_type(unsigned int mach, unsigned int stype)
 700 {
 701         static char s_stype[32];
 702
 703         if (stype >= SHT_LOPROC && stype <= SHT_HIPROC) {
 704                 switch (mach) {
 705                 case EM_ARM:
 706                         switch (stype) {
 707                         case SHT_ARM_EXIDX: return "ARM_EXIDX";
 708                         case SHT_ARM_PREEMPTMAP: return "ARM_PREEMPTMAP";
 709                         case SHT_ARM_ATTRIBUTES: return "ARM_ATTRIBUTES";
 710                         case SHT_ARM_DEBUGOVERLAY: return "ARM_DEBUGOVERLAY";
 711                         case SHT_ARM_OVERLAYSECTION: return "ARM_OVERLAYSECTION";
 712                         }
 713                         break;
 714                 case EM_X86_64:
 715                         switch (stype) {
 716                         case SHT_X86_64_UNWIND: return "X86_64_UNWIND";
 717                         default:
 718                                 break;
 719                         }
 720                         break;
 721                 case EM_MIPS:
 722                 case EM_MIPS_RS3_LE:
 723                         switch (stype) {
 724                         case SHT_MIPS_LIBLIST: return "MIPS_LIBLIST";
 725                         case SHT_MIPS_MSYM: return "MIPS_MSYM";
 726                         case SHT_MIPS_CONFLICT: return "MIPS_CONFLICT";
 727                         case SHT_MIPS_GPTAB: return "MIPS_GPTAB";
 728                         case SHT_MIPS_UCODE: return "MIPS_UCODE";
 729                         case SHT_MIPS_DEBUG: return "MIPS_DEBUG";
 730                         case SHT_MIPS_REGINFO: return "MIPS_REGINFO";
 731                         case SHT_MIPS_PACKAGE: return "MIPS_PACKAGE";
 732                         case SHT_MIPS_PACKSYM: return "MIPS_PACKSYM";
 733                         case SHT_MIPS_RELD: return "MIPS_RELD";
 734                         case SHT_MIPS_IFACE: return "MIPS_IFACE";
 735                         case SHT_MIPS_CONTENT: return "MIPS_CONTENT";
 736                         case SHT_MIPS_OPTIONS: return "MIPS_OPTIONS";
 737                         case SHT_MIPS_DELTASYM: return "MIPS_DELTASYM";
 738                         case SHT_MIPS_DELTAINST: return "MIPS_DELTAINST";
 739                         case SHT_MIPS_DELTACLASS: return "MIPS_DELTACLASS";
 740                         case SHT_MIPS_DWARF: return "MIPS_DWARF";
 741                         case SHT_MIPS_DELTADECL: return "MIPS_DELTADECL";
 742                         case SHT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
 743                         case SHT_MIPS_EVENTS: return "MIPS_EVENTS";
 744                         case SHT_MIPS_TRANSLATE: return "MIPS_TRANSLATE";
 745                         case SHT_MIPS_PIXIE: return "MIPS_PIXIE";
 746                         case SHT_MIPS_XLATE: return "MIPS_XLATE";
 747                         case SHT_MIPS_XLATE_DEBUG: return "MIPS_XLATE_DEBUG";
 748                         case SHT_MIPS_WHIRL: return "MIPS_WHIRL";
 749                         case SHT_MIPS_EH_REGION: return "MIPS_EH_REGION";
 750                         case SHT_MIPS_XLATE_OLD: return "MIPS_XLATE_OLD";
 751                         case SHT_MIPS_PDR_EXCEPTION: return "MIPS_PDR_EXCEPTION";
 752                         case SHT_MIPS_ABIFLAGS: return "MIPS_ABIFLAGS";
 753                         default:
 754                                 break;
 755                         }
 756                         break;
 757                 default:
 758                         break;
 759                 }
 760
 761                 snprintf(s_stype, sizeof(s_stype), "LOPROC+%#x",
 762                     stype - SHT_LOPROC);
 763                 return (s_stype);
 764         }
 765
 766         switch (stype) {
 767         case SHT_NULL: return "NULL";
 768         case SHT_PROGBITS: return "PROGBITS";
 769         case SHT_SYMTAB: return "SYMTAB";
 770         case SHT_STRTAB: return "STRTAB";
 771         case SHT_RELA: return "RELA";
 772         case SHT_HASH: return "HASH";
 773         case SHT_DYNAMIC: return "DYNAMIC";
 774         case SHT_NOTE: return "NOTE";
 775         case SHT_NOBITS: return "NOBITS";
 776         case SHT_REL: return "REL";
 777         case SHT_SHLIB: return "SHLIB";
 778         case SHT_DYNSYM: return "DYNSYM";
 779         case SHT_INIT_ARRAY: return "INIT_ARRAY";
 780         case SHT_FINI_ARRAY: return "FINI_ARRAY";
 781         case SHT_PREINIT_ARRAY: return "PREINIT_ARRAY";
 782         case SHT_GROUP: return "GROUP";
 783         case SHT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
 784         case SHT_SUNW_dof: return "SUNW_dof";
 785         case SHT_SUNW_cap: return "SUNW_cap";
 786         case SHT_GNU_HASH: return "GNU_HASH";
 787         case SHT_SUNW_ANNOTATE: return "SUNW_ANNOTATE";
 788         case SHT_SUNW_DEBUGSTR: return "SUNW_DEBUGSTR";
 789         case SHT_SUNW_DEBUG: return "SUNW_DEBUG";
 790         case SHT_SUNW_move: return "SUNW_move";
 791         case SHT_SUNW_COMDAT: return "SUNW_COMDAT";
 792         case SHT_SUNW_syminfo: return "SUNW_syminfo";
 793         case SHT_SUNW_verdef: return "SUNW_verdef";
 794         case SHT_SUNW_verneed: return "SUNW_verneed";
 795         case SHT_SUNW_versym: return "SUNW_versym";
 796         default:
 797                 if (stype >= SHT_LOOS && stype <= SHT_HIOS)
 798                         snprintf(s_stype, sizeof(s_stype), "LOOS+%#x",
 799                             stype - SHT_LOOS);
 800                 else if (stype >= SHT_LOUSER)
 801                         snprintf(s_stype, sizeof(s_stype), "LOUSER+%#x",
 802                             stype - SHT_LOUSER);
 803                 else
 804                         snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
 805                             stype);
 806                 return (s_stype);
 807         }
 808 }
 809
 810 static const char *
 811 dt_type(unsigned int mach, unsigned int dtype)
 812 {
 813         static char s_dtype[32];
 814
 815         switch (dtype) {
 816         case DT_NULL: return "NULL";
 817         case DT_NEEDED: return "NEEDED";
 818         case DT_PLTRELSZ: return "PLTRELSZ";
 819         case DT_PLTGOT: return "PLTGOT";
 820         case DT_HASH: return "HASH";
 821         case DT_STRTAB: return "STRTAB";
 822         case DT_SYMTAB: return "SYMTAB";
 823         case DT_RELA: return "RELA";
 824         case DT_RELASZ: return "RELASZ";
 825         case DT_RELAENT: return "RELAENT";
 826         case DT_STRSZ: return "STRSZ";
 827         case DT_SYMENT: return "SYMENT";
 828         case DT_INIT: return "INIT";
 829         case DT_FINI: return "FINI";
 830         case DT_SONAME: return "SONAME";
 831         case DT_RPATH: return "RPATH";
 832         case DT_SYMBOLIC: return "SYMBOLIC";
 833         case DT_REL: return "REL";
 834         case DT_RELSZ: return "RELSZ";
 835         case DT_RELENT: return "RELENT";
 836         case DT_PLTREL: return "PLTREL";
 837         case DT_DEBUG: return "DEBUG";
 838         case DT_TEXTREL: return "TEXTREL";
 839         case DT_JMPREL: return "JMPREL";
 840         case DT_BIND_NOW: return "BIND_NOW";
 841         case DT_INIT_ARRAY: return "INIT_ARRAY";
 842         case DT_FINI_ARRAY: return "FINI_ARRAY";
 843         case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
 844         case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
 845         case DT_RUNPATH: return "RUNPATH";
 846         case DT_FLAGS: return "FLAGS";
 847         case DT_PREINIT_ARRAY: return "PREINIT_ARRAY";
 848         case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
 849         case DT_MAXPOSTAGS: return "MAXPOSTAGS";
 850         case DT_SUNW_AUXILIARY: return "SUNW_AUXILIARY";
 851         case DT_SUNW_RTLDINF: return "SUNW_RTLDINF";
 852         case DT_SUNW_FILTER: return "SUNW_FILTER";
 853         case DT_SUNW_CAP: return "SUNW_CAP";
 854         case DT_SUNW_ASLR: return "SUNW_ASLR";
 855         case DT_CHECKSUM: return "CHECKSUM";
 856         case DT_PLTPADSZ: return "PLTPADSZ";
 857         case DT_MOVEENT: return "MOVEENT";
 858         case DT_MOVESZ: return "MOVESZ";
 859         case DT_FEATURE: return "FEATURE";
 860         case DT_POSFLAG_1: return "POSFLAG_1";
 861         case DT_SYMINSZ: return "SYMINSZ";
 862         case DT_SYMINENT: return "SYMINENT";
 863         case DT_GNU_HASH: return "GNU_HASH";
 864         case DT_TLSDESC_PLT: return "DT_TLSDESC_PLT";
 865         case DT_TLSDESC_GOT: return "DT_TLSDESC_GOT";
 866         case DT_GNU_CONFLICT: return "GNU_CONFLICT";
 867         case DT_GNU_LIBLIST: return "GNU_LIBLIST";
 868         case DT_CONFIG: return "CONFIG";
 869         case DT_DEPAUDIT: return "DEPAUDIT";
 870         case DT_AUDIT: return "AUDIT";
 871         case DT_PLTPAD: return "PLTPAD";
 872         case DT_MOVETAB: return "MOVETAB";
 873         case DT_SYMINFO: return "SYMINFO";
 874         case DT_VERSYM: return "VERSYM";
 875         case DT_RELACOUNT: return "RELACOUNT";
 876         case DT_RELCOUNT: return "RELCOUNT";
 877         case DT_FLAGS_1: return "FLAGS_1";
 878         case DT_VERDEF: return "VERDEF";
 879         case DT_VERDEFNUM: return "VERDEFNUM";
 880         case DT_VERNEED: return "VERNEED";
 881         case DT_VERNEEDNUM: return "VERNEEDNUM";
 882         case DT_AUXILIARY: return "AUXILIARY";
 883         case DT_USED: return "USED";
 884         case DT_FILTER: return "FILTER";
 885         case DT_GNU_PRELINKED: return "GNU_PRELINKED";
 886         case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
 887         case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
 888         }
 889
 890         if (dtype >= DT_LOPROC && dtype <= DT_HIPROC) {
 891                 switch (mach) {
 892                 case EM_ARM:
 893                         switch (dtype) {
 894                         case DT_ARM_SYMTABSZ:
 895                                 return "ARM_SYMTABSZ";
 896                         default:
 897                                 break;
 898                         }
 899                         break;
 900                 case EM_MIPS:
 901                 case EM_MIPS_RS3_LE:
 902                         switch (dtype) {
 903                         case DT_MIPS_RLD_VERSION:
 904                                 return "MIPS_RLD_VERSION";
 905                         case DT_MIPS_TIME_STAMP:
 906                                 return "MIPS_TIME_STAMP";
 907                         case DT_MIPS_ICHECKSUM:
 908                                 return "MIPS_ICHECKSUM";
 909                         case DT_MIPS_IVERSION:
 910                                 return "MIPS_IVERSION";
 911                         case DT_MIPS_FLAGS:
 912                                 return "MIPS_FLAGS";
 913                         case DT_MIPS_BASE_ADDRESS:
 914                                 return "MIPS_BASE_ADDRESS";
 915                         case DT_MIPS_CONFLICT:
 916                                 return "MIPS_CONFLICT";
 917                         case DT_MIPS_LIBLIST:
 918                                 return "MIPS_LIBLIST";
 919                         case DT_MIPS_LOCAL_GOTNO:
 920                                 return "MIPS_LOCAL_GOTNO";
 921                         case DT_MIPS_CONFLICTNO:
 922                                 return "MIPS_CONFLICTNO";
 923                         case DT_MIPS_LIBLISTNO:
 924                                 return "MIPS_LIBLISTNO";
 925                         case DT_MIPS_SYMTABNO:
 926                                 return "MIPS_SYMTABNO";
 927                         case DT_MIPS_UNREFEXTNO:
 928                                 return "MIPS_UNREFEXTNO";
 929                         case DT_MIPS_GOTSYM:
 930                                 return "MIPS_GOTSYM";
 931                         case DT_MIPS_HIPAGENO:
 932                                 return "MIPS_HIPAGENO";
 933                         case DT_MIPS_RLD_MAP:
 934                                 return "MIPS_RLD_MAP";
 935                         case DT_MIPS_DELTA_CLASS:
 936                                 return "MIPS_DELTA_CLASS";
 937                         case DT_MIPS_DELTA_CLASS_NO:
 938                                 return "MIPS_DELTA_CLASS_NO";
 939                         case DT_MIPS_DELTA_INSTANCE:
 940                                 return "MIPS_DELTA_INSTANCE";
 941                         case DT_MIPS_DELTA_INSTANCE_NO:
 942                                 return "MIPS_DELTA_INSTANCE_NO";
 943                         case DT_MIPS_DELTA_RELOC:
 944                                 return "MIPS_DELTA_RELOC";
 945                         case DT_MIPS_DELTA_RELOC_NO:
 946                                 return "MIPS_DELTA_RELOC_NO";
 947                         case DT_MIPS_DELTA_SYM:
 948                                 return "MIPS_DELTA_SYM";
 949                         case DT_MIPS_DELTA_SYM_NO:
 950                                 return "MIPS_DELTA_SYM_NO";
 951                         case DT_MIPS_DELTA_CLASSSYM:
 952                                 return "MIPS_DELTA_CLASSSYM";
 953                         case DT_MIPS_DELTA_CLASSSYM_NO:
 954                                 return "MIPS_DELTA_CLASSSYM_NO";
 955                         case DT_MIPS_CXX_FLAGS:
 956                                 return "MIPS_CXX_FLAGS";
 957                         case DT_MIPS_PIXIE_INIT:
 958                                 return "MIPS_PIXIE_INIT";
 959                         case DT_MIPS_SYMBOL_LIB:
 960                                 return "MIPS_SYMBOL_LIB";
 961                         case DT_MIPS_LOCALPAGE_GOTIDX:
 962                                 return "MIPS_LOCALPAGE_GOTIDX";
 963                         case DT_MIPS_LOCAL_GOTIDX:
 964                                 return "MIPS_LOCAL_GOTIDX";
 965                         case DT_MIPS_HIDDEN_GOTIDX:
 966                                 return "MIPS_HIDDEN_GOTIDX";
 967                         case DT_MIPS_PROTECTED_GOTIDX:
 968                                 return "MIPS_PROTECTED_GOTIDX";
 969                         case DT_MIPS_OPTIONS:
 970                                 return "MIPS_OPTIONS";
 971                         case DT_MIPS_INTERFACE:
 972                                 return "MIPS_INTERFACE";
 973                         case DT_MIPS_DYNSTR_ALIGN:
 974                                 return "MIPS_DYNSTR_ALIGN";
 975                         case DT_MIPS_INTERFACE_SIZE:
 976                                 return "MIPS_INTERFACE_SIZE";
 977                         case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
 978                                 return "MIPS_RLD_TEXT_RESOLVE_ADDR";
 979                         case DT_MIPS_PERF_SUFFIX:
 980                                 return "MIPS_PERF_SUFFIX";
 981                         case DT_MIPS_COMPACT_SIZE:
 982                                 return "MIPS_COMPACT_SIZE";
 983                         case DT_MIPS_GP_VALUE:
 984                                 return "MIPS_GP_VALUE";
 985                         case DT_MIPS_AUX_DYNAMIC:
 986                                 return "MIPS_AUX_DYNAMIC";
 987                         case DT_MIPS_PLTGOT:
 988                                 return "MIPS_PLTGOT";
 989                         case DT_MIPS_RLD_OBJ_UPDATE:
 990                                 return "MIPS_RLD_OBJ_UPDATE";
 991                         case DT_MIPS_RWPLT:
 992                                 return "MIPS_RWPLT";
 993                         default:
 994                                 break;
 995                         }
 996                         break;
 997                 case EM_SPARC:
 998                 case EM_SPARC32PLUS:
 999                 case EM_SPARCV9:
1000                         switch (dtype) {
1001                         case DT_SPARC_REGISTER:
1002                                 return "DT_SPARC_REGISTER";
1003                         default:
1004                                 break;
1005                         }
1006                         break;
1007                 default:
1008                         break;
1009                 }
1010         }
1011
1012         snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
1013         return (s_dtype);
1014 }
1015
1016 static const char *
1017 st_bind(unsigned int sbind)
1018 {
1019         static char s_sbind[32];
1020
1021         switch (sbind) {
1022         case STB_LOCAL: return "LOCAL";
1023         case STB_GLOBAL: return "GLOBAL";
1024         case STB_WEAK: return "WEAK";
1025         case STB_GNU_UNIQUE: return "UNIQUE";
1026         default:
1027                 if (sbind >= STB_LOOS && sbind <= STB_HIOS)
1028                         return "OS";
1029                 else if (sbind >= STB_LOPROC && sbind <= STB_HIPROC)
1030                         return "PROC";
1031                 else
1032                         snprintf(s_sbind, sizeof(s_sbind), "<unknown: %#x>",
1033                             sbind);
1034                 return (s_sbind);
1035         }
1036 }
1037
1038 static const char *
1039 st_type(unsigned int mach, unsigned int os, unsigned int stype)
1040 {
1041         static char s_stype[32];
1042
1043         switch (stype) {
1044         case STT_NOTYPE: return "NOTYPE";
1045         case STT_OBJECT: return "OBJECT";
1046         case STT_FUNC: return "FUNC";
1047         case STT_SECTION: return "SECTION";
1048         case STT_FILE: return "FILE";
1049         case STT_COMMON: return "COMMON";
1050         case STT_TLS: return "TLS";
1051         default:
1052                 if (stype >= STT_LOOS && stype <= STT_HIOS) {
1053                         if ((os == ELFOSABI_GNU || os == ELFOSABI_FREEBSD) &&
1054                             stype == STT_GNU_IFUNC)
1055                                 return "IFUNC";
1056                         snprintf(s_stype, sizeof(s_stype), "OS+%#x",
1057                             stype - STT_LOOS);
1058                 } else if (stype >= STT_LOPROC && stype <= STT_HIPROC) {
1059                         if (mach == EM_SPARCV9 && stype == STT_SPARC_REGISTER)
1060                                 return "REGISTER";
1061                         snprintf(s_stype, sizeof(s_stype), "PROC+%#x",
1062                             stype - STT_LOPROC);
1063                 } else
1064                         snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
1065                             stype);
1066                 return (s_stype);
1067         }
1068 }
1069
1070 static const char *
1071 st_vis(unsigned int svis)
1072 {
1073         static char s_svis[32];
1074
1075         switch(svis) {
1076         case STV_DEFAULT: return "DEFAULT";
1077         case STV_INTERNAL: return "INTERNAL";
1078         case STV_HIDDEN: return "HIDDEN";
1079         case STV_PROTECTED: return "PROTECTED";
1080         default:
1081                 snprintf(s_svis, sizeof(s_svis), "<unknown: %#x>", svis);
1082                 return (s_svis);
1083         }
1084 }
1085
1086 static const char *
1087 st_shndx(unsigned int shndx)
1088 {
1089         static char s_shndx[32];
1090
1091         switch (shndx) {
1092         case SHN_UNDEF: return "UND";
1093         case SHN_ABS: return "ABS";
1094         case SHN_COMMON: return "COM";
1095         default:
1096                 if (shndx >= SHN_LOPROC && shndx <= SHN_HIPROC)
1097                         return "PRC";
1098                 else if (shndx >= SHN_LOOS && shndx <= SHN_HIOS)
1099                         return "OS";
1100                 else
1101                         snprintf(s_shndx, sizeof(s_shndx), "%u", shndx);
1102                 return (s_shndx);
1103         }
1104 }
1105
1106 static struct {
1107         const char *ln;
1108         char sn;
1109         int value;
1110 } section_flag[] = {
1111         {"WRITE", 'W', SHF_WRITE},
1112         {"ALLOC", 'A', SHF_ALLOC},
1113         {"EXEC", 'X', SHF_EXECINSTR},
1114         {"MERGE", 'M', SHF_MERGE},
1115         {"STRINGS", 'S', SHF_STRINGS},
1116         {"INFO LINK", 'I', SHF_INFO_LINK},
1117         {"OS NONCONF", 'O', SHF_OS_NONCONFORMING},
1118         {"GROUP", 'G', SHF_GROUP},
1119         {"TLS", 'T', SHF_TLS},
1120         {"COMPRESSED", 'C', SHF_COMPRESSED},
1121         {NULL, 0, 0}
1122 };
1123
1124 static const char *
1125 note_type(const char *name, unsigned int et, unsigned int nt)
1126 {
1127         if ((strcmp(name, "CORE") == 0 || strcmp(name, "LINUX") == 0) &&
1128             et == ET_CORE)
1129                 return note_type_linux_core(nt);
1130         else if (strcmp(name, "FreeBSD") == 0)
1131                 if (et == ET_CORE)
1132                         return note_type_freebsd_core(nt);
1133                 else
1134                         return note_type_freebsd(nt);
1135         else if (strcmp(name, "GNU") == 0 && et != ET_CORE)
1136                 return note_type_gnu(nt);
1137         else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE)
1138                 return note_type_netbsd(nt);
1139         else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE)
1140                 return note_type_openbsd(nt);
1141         else if (strcmp(name, "Xen") == 0 && et != ET_CORE)
1142                 return note_type_xen(nt);
1143         return note_type_unknown(nt);
1144 }
1145
1146 static const char *
1147 note_type_freebsd(unsigned int nt)
1148 {
1149         switch (nt) {
1150         case 1: return "NT_FREEBSD_ABI_TAG";
1151         case 2: return "NT_FREEBSD_NOINIT_TAG";
1152         case 3: return "NT_FREEBSD_ARCH_TAG";
1153         case 4: return "NT_FREEBSD_FEATURE_CTL";
1154         default: return (note_type_unknown(nt));
1155         }
1156 }
1157
1158 static const char *
1159 note_type_freebsd_core(unsigned int nt)
1160 {
1161         switch (nt) {
1162         case 1: return "NT_PRSTATUS";
1163         case 2: return "NT_FPREGSET";
1164         case 3: return "NT_PRPSINFO";
1165         case 7: return "NT_THRMISC";
1166         case 8: return "NT_PROCSTAT_PROC";
1167         case 9: return "NT_PROCSTAT_FILES";
1168         case 10: return "NT_PROCSTAT_VMMAP";
1169         case 11: return "NT_PROCSTAT_GROUPS";
1170         case 12: return "NT_PROCSTAT_UMASK";
1171         case 13: return "NT_PROCSTAT_RLIMIT";
1172         case 14: return "NT_PROCSTAT_OSREL";
1173         case 15: return "NT_PROCSTAT_PSSTRINGS";
1174         case 16: return "NT_PROCSTAT_AUXV";
1175         case 17: return "NT_PTLWPINFO";
1176         case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1177         case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1178         default: return (note_type_unknown(nt));
1179         }
1180 }
1181
1182 static const char *
1183 note_type_linux_core(unsigned int nt)
1184 {
1185         switch (nt) {
1186         case 1: return "NT_PRSTATUS (Process status)";
1187         case 2: return "NT_FPREGSET (Floating point information)";
1188         case 3: return "NT_PRPSINFO (Process information)";
1189         case 4: return "NT_TASKSTRUCT (Task structure)";
1190         case 6: return "NT_AUXV (Auxiliary vector)";
1191         case 10: return "NT_PSTATUS (Linux process status)";
1192         case 12: return "NT_FPREGS (Linux floating point regset)";
1193         case 13: return "NT_PSINFO (Linux process information)";
1194         case 16: return "NT_LWPSTATUS (Linux lwpstatus_t type)";
1195         case 17: return "NT_LWPSINFO (Linux lwpinfo_t type)";
1196         case 18: return "NT_WIN32PSTATUS (win32_pstatus structure)";
1197         case 0x100: return "NT_PPC_VMX (ppc Altivec registers)";
1198         case 0x102: return "NT_PPC_VSX (ppc VSX registers)";
1199         case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1200         case 0x300: return "NT_S390_HIGH_GPRS (s390 upper register halves)";
1201         case 0x301: return "NT_S390_TIMER (s390 timer register)";
1202         case 0x302: return "NT_S390_TODCMP (s390 TOD comparator register)";
1203         case 0x303: return "NT_S390_TODPREG (s390 TOD programmable register)";
1204         case 0x304: return "NT_S390_CTRS (s390 control registers)";
1205         case 0x305: return "NT_S390_PREFIX (s390 prefix register)";
1206         case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1207         case 0x46494c45UL: return "NT_FILE (mapped files)";
1208         case 0x46E62B7FUL: return "NT_PRXFPREG (Linux user_xfpregs structure)";
1209         case 0x53494749UL: return "NT_SIGINFO (siginfo_t data)";
1210         default: return (note_type_unknown(nt));
1211         }
1212 }
1213
1214 static const char *
1215 note_type_gnu(unsigned int nt)
1216 {
1217         switch (nt) {
1218         case 1: return "NT_GNU_ABI_TAG";
1219         case 2: return "NT_GNU_HWCAP (Hardware capabilities)";
1220         case 3: return "NT_GNU_BUILD_ID (Build id set by ld(1))";
1221         case 4: return "NT_GNU_GOLD_VERSION (GNU gold version)";
1222         case 5: return "NT_GNU_PROPERTY_TYPE_0";
1223         default: return (note_type_unknown(nt));
1224         }
1225 }
1226
1227 static const char *
1228 note_type_netbsd(unsigned int nt)
1229 {
1230         switch (nt) {
1231         case 1: return "NT_NETBSD_IDENT";
1232         default: return (note_type_unknown(nt));
1233         }
1234 }
1235
1236 static const char *
1237 note_type_openbsd(unsigned int nt)
1238 {
1239         switch (nt) {
1240         case 1: return "NT_OPENBSD_IDENT";
1241         default: return (note_type_unknown(nt));
1242         }
1243 }
1244
1245 static const char *
1246 note_type_unknown(unsigned int nt)
1247 {
1248         static char s_nt[32];
1249
1250         snprintf(s_nt, sizeof(s_nt),
1251             nt >= 0x100 ? "<unknown: 0x%x>" : "<unknown: %u>", nt);
1252         return (s_nt);
1253 }
1254
1255 static const char *
1256 note_type_xen(unsigned int nt)
1257 {
1258         switch (nt) {
1259         case 0: return "XEN_ELFNOTE_INFO";
1260         case 1: return "XEN_ELFNOTE_ENTRY";
1261         case 2: return "XEN_ELFNOTE_HYPERCALL_PAGE";
1262         case 3: return "XEN_ELFNOTE_VIRT_BASE";
1263         case 4: return "XEN_ELFNOTE_PADDR_OFFSET";
1264         case 5: return "XEN_ELFNOTE_XEN_VERSION";
1265         case 6: return "XEN_ELFNOTE_GUEST_OS";
1266         case 7: return "XEN_ELFNOTE_GUEST_VERSION";
1267         case 8: return "XEN_ELFNOTE_LOADER";
1268         case 9: return "XEN_ELFNOTE_PAE_MODE";
1269         case 10: return "XEN_ELFNOTE_FEATURES";
1270         case 11: return "XEN_ELFNOTE_BSD_SYMTAB";
1271         case 12: return "XEN_ELFNOTE_HV_START_LOW";
1272         case 13: return "XEN_ELFNOTE_L1_MFN_VALID";
1273         case 14: return "XEN_ELFNOTE_SUSPEND_CANCEL";
1274         case 15: return "XEN_ELFNOTE_INIT_P2M";
1275         case 16: return "XEN_ELFNOTE_MOD_START_PFN";
1276         case 17: return "XEN_ELFNOTE_SUPPORTED_FEATURES";
1277         default: return (note_type_unknown(nt));
1278         }
1279 }
1280
1281 static struct {
1282         const char *name;
1283         int value;
1284 } l_flag[] = {
1285         {"EXACT_MATCH", LL_EXACT_MATCH},
1286         {"IGNORE_INT_VER", LL_IGNORE_INT_VER},
1287         {"REQUIRE_MINOR", LL_REQUIRE_MINOR},
1288         {"EXPORTS", LL_EXPORTS},
1289         {"DELAY_LOAD", LL_DELAY_LOAD},
1290         {"DELTA", LL_DELTA},
1291         {NULL, 0}
1292 };
1293
1294 static struct mips_option mips_exceptions_option[] = {
1295         {OEX_PAGE0, "PAGE0"},
1296         {OEX_SMM, "SMM"},
1297         {OEX_PRECISEFP, "PRECISEFP"},
1298         {OEX_DISMISS, "DISMISS"},
1299         {0, NULL}
1300 };
1301
1302 static struct mips_option mips_pad_option[] = {
1303         {OPAD_PREFIX, "PREFIX"},
1304         {OPAD_POSTFIX, "POSTFIX"},
1305         {OPAD_SYMBOL, "SYMBOL"},
1306         {0, NULL}
1307 };
1308
1309 static struct mips_option mips_hwpatch_option[] = {
1310         {OHW_R4KEOP, "R4KEOP"},
1311         {OHW_R8KPFETCH, "R8KPFETCH"},
1312         {OHW_R5KEOP, "R5KEOP"},
1313         {OHW_R5KCVTL, "R5KCVTL"},
1314         {0, NULL}
1315 };
1316
1317 static struct mips_option mips_hwa_option[] = {
1318         {OHWA0_R4KEOP_CHECKED, "R4KEOP_CHECKED"},
1319         {OHWA0_R4KEOP_CLEAN, "R4KEOP_CLEAN"},
1320         {0, NULL}
1321 };
1322
1323 static struct mips_option mips_hwo_option[] = {
1324         {OHWO0_FIXADE, "FIXADE"},
1325         {0, NULL}
1326 };
1327
1328 static const char *
1329 option_kind(uint8_t kind)
1330 {
1331         static char s_kind[32];
1332
1333         switch (kind) {
1334         case ODK_NULL: return "NULL";
1335         case ODK_REGINFO: return "REGINFO";
1336         case ODK_EXCEPTIONS: return "EXCEPTIONS";
1337         case ODK_PAD: return "PAD";
1338         case ODK_HWPATCH: return "HWPATCH";
1339         case ODK_FILL: return "FILL";
1340         case ODK_TAGS: return "TAGS";
1341         case ODK_HWAND: return "HWAND";
1342         case ODK_HWOR: return "HWOR";
1343         case ODK_GP_GROUP: return "GP_GROUP";
1344         case ODK_IDENT: return "IDENT";
1345         default:
1346                 snprintf(s_kind, sizeof(s_kind), "<unknown: %u>", kind);
1347                 return (s_kind);
1348         }
1349 }
1350
1351 static const char *
1352 top_tag(unsigned int tag)
1353 {
1354         static char s_top_tag[32];
1355
1356         switch (tag) {
1357         case 1: return "File Attributes";
1358         case 2: return "Section Attributes";
1359         case 3: return "Symbol Attributes";
1360         default:
1361                 snprintf(s_top_tag, sizeof(s_top_tag), "Unknown tag: %u", tag);
1362                 return (s_top_tag);
1363         }
1364 }
1365
1366 static const char *
1367 aeabi_cpu_arch(uint64_t arch)
1368 {
1369         static char s_cpu_arch[32];
1370
1371         switch (arch) {
1372         case 0: return "Pre-V4";
1373         case 1: return "ARM v4";
1374         case 2: return "ARM v4T";
1375         case 3: return "ARM v5T";
1376         case 4: return "ARM v5TE";
1377         case 5: return "ARM v5TEJ";
1378         case 6: return "ARM v6";
1379         case 7: return "ARM v6KZ";
1380         case 8: return "ARM v6T2";
1381         case 9: return "ARM v6K";
1382         case 10: return "ARM v7";
1383         case 11: return "ARM v6-M";
1384         case 12: return "ARM v6S-M";
1385         case 13: return "ARM v7E-M";
1386         default:
1387                 snprintf(s_cpu_arch, sizeof(s_cpu_arch),
1388                     "Unknown (%ju)", (uintmax_t) arch);
1389                 return (s_cpu_arch);
1390         }
1391 }
1392
1393 static const char *
1394 aeabi_cpu_arch_profile(uint64_t pf)
1395 {
1396         static char s_arch_profile[32];
1397
1398         switch (pf) {
1399         case 0:
1400                 return "Not applicable";
1401         case 0x41:              /* 'A' */
1402                 return "Application Profile";
1403         case 0x52:              /* 'R' */
1404                 return "Real-Time Profile";
1405         case 0x4D:              /* 'M' */
1406                 return "Microcontroller Profile";
1407         case 0x53:              /* 'S' */
1408                 return "Application or Real-Time Profile";
1409         default:
1410                 snprintf(s_arch_profile, sizeof(s_arch_profile),
1411                     "Unknown (%ju)\n", (uintmax_t) pf);
1412                 return (s_arch_profile);
1413         }
1414 }
1415
1416 static const char *
1417 aeabi_arm_isa(uint64_t ai)
1418 {
1419         static char s_ai[32];
1420
1421         switch (ai) {
1422         case 0: return "No";
1423         case 1: return "Yes";
1424         default:
1425                 snprintf(s_ai, sizeof(s_ai), "Unknown (%ju)\n",
1426                     (uintmax_t) ai);
1427                 return (s_ai);
1428         }
1429 }
1430
1431 static const char *
1432 aeabi_thumb_isa(uint64_t ti)
1433 {
1434         static char s_ti[32];
1435
1436         switch (ti) {
1437         case 0: return "No";
1438         case 1: return "16-bit Thumb";
1439         case 2: return "32-bit Thumb";
1440         default:
1441                 snprintf(s_ti, sizeof(s_ti), "Unknown (%ju)\n",
1442                     (uintmax_t) ti);
1443                 return (s_ti);
1444         }
1445 }
1446
1447 static const char *
1448 aeabi_fp_arch(uint64_t fp)
1449 {
1450         static char s_fp_arch[32];
1451
1452         switch (fp) {
1453         case 0: return "No";
1454         case 1: return "VFPv1";
1455         case 2: return "VFPv2";
1456         case 3: return "VFPv3";
1457         case 4: return "VFPv3-D16";
1458         case 5: return "VFPv4";
1459         case 6: return "VFPv4-D16";
1460         default:
1461                 snprintf(s_fp_arch, sizeof(s_fp_arch), "Unknown (%ju)",
1462                     (uintmax_t) fp);
1463                 return (s_fp_arch);
1464         }
1465 }
1466
1467 static const char *
1468 aeabi_wmmx_arch(uint64_t wmmx)
1469 {
1470         static char s_wmmx[32];
1471
1472         switch (wmmx) {
1473         case 0: return "No";
1474         case 1: return "WMMXv1";
1475         case 2: return "WMMXv2";
1476         default:
1477                 snprintf(s_wmmx, sizeof(s_wmmx), "Unknown (%ju)",
1478                     (uintmax_t) wmmx);
1479                 return (s_wmmx);
1480         }
1481 }
1482
1483 static const char *
1484 aeabi_adv_simd_arch(uint64_t simd)
1485 {
1486         static char s_simd[32];
1487
1488         switch (simd) {
1489         case 0: return "No";
1490         case 1: return "NEONv1";
1491         case 2: return "NEONv2";
1492         default:
1493                 snprintf(s_simd, sizeof(s_simd), "Unknown (%ju)",
1494                     (uintmax_t) simd);
1495                 return (s_simd);
1496         }
1497 }
1498
1499 static const char *
1500 aeabi_pcs_config(uint64_t pcs)
1501 {
1502         static char s_pcs[32];
1503
1504         switch (pcs) {
1505         case 0: return "None";
1506         case 1: return "Bare platform";
1507         case 2: return "Linux";
1508         case 3: return "Linux DSO";
1509         case 4: return "Palm OS 2004";
1510         case 5: return "Palm OS (future)";
1511         case 6: return "Symbian OS 2004";
1512         case 7: return "Symbian OS (future)";
1513         default:
1514                 snprintf(s_pcs, sizeof(s_pcs), "Unknown (%ju)",
1515                     (uintmax_t) pcs);
1516                 return (s_pcs);
1517         }
1518 }
1519
1520 static const char *
1521 aeabi_pcs_r9(uint64_t r9)
1522 {
1523         static char s_r9[32];
1524
1525         switch (r9) {
1526         case 0: return "V6";
1527         case 1: return "SB";
1528         case 2: return "TLS pointer";
1529         case 3: return "Unused";
1530         default:
1531                 snprintf(s_r9, sizeof(s_r9), "Unknown (%ju)", (uintmax_t) r9);
1532                 return (s_r9);
1533         }
1534 }
1535
1536 static const char *
1537 aeabi_pcs_rw(uint64_t rw)
1538 {
1539         static char s_rw[32];
1540
1541         switch (rw) {
1542         case 0: return "Absolute";
1543         case 1: return "PC-relative";
1544         case 2: return "SB-relative";
1545         case 3: return "None";
1546         default:
1547                 snprintf(s_rw, sizeof(s_rw), "Unknown (%ju)", (uintmax_t) rw);
1548                 return (s_rw);
1549         }
1550 }
1551
1552 static const char *
1553 aeabi_pcs_ro(uint64_t ro)
1554 {
1555         static char s_ro[32];
1556
1557         switch (ro) {
1558         case 0: return "Absolute";
1559         case 1: return "PC-relative";
1560         case 2: return "None";
1561         default:
1562                 snprintf(s_ro, sizeof(s_ro), "Unknown (%ju)", (uintmax_t) ro);
1563                 return (s_ro);
1564         }
1565 }
1566
1567 static const char *
1568 aeabi_pcs_got(uint64_t got)
1569 {
1570         static char s_got[32];
1571
1572         switch (got) {
1573         case 0: return "None";
1574         case 1: return "direct";
1575         case 2: return "indirect via GOT";
1576         default:
1577                 snprintf(s_got, sizeof(s_got), "Unknown (%ju)",
1578                     (uintmax_t) got);
1579                 return (s_got);
1580         }
1581 }
1582
1583 static const char *
1584 aeabi_pcs_wchar_t(uint64_t wt)
1585 {
1586         static char s_wt[32];
1587
1588         switch (wt) {
1589         case 0: return "None";
1590         case 2: return "wchar_t size 2";
1591         case 4: return "wchar_t size 4";
1592         default:
1593                 snprintf(s_wt, sizeof(s_wt), "Unknown (%ju)", (uintmax_t) wt);
1594                 return (s_wt);
1595         }
1596 }
1597
1598 static const char *
1599 aeabi_enum_size(uint64_t es)
1600 {
1601         static char s_es[32];
1602
1603         switch (es) {
1604         case 0: return "None";
1605         case 1: return "smallest";
1606         case 2: return "32-bit";
1607         case 3: return "visible 32-bit";
1608         default:
1609                 snprintf(s_es, sizeof(s_es), "Unknown (%ju)", (uintmax_t) es);
1610                 return (s_es);
1611         }
1612 }
1613
1614 static const char *
1615 aeabi_align_needed(uint64_t an)
1616 {
1617         static char s_align_n[64];
1618
1619         switch (an) {
1620         case 0: return "No";
1621         case 1: return "8-byte align";
1622         case 2: return "4-byte align";
1623         case 3: return "Reserved";
1624         default:
1625                 if (an >= 4 && an <= 12)
1626                         snprintf(s_align_n, sizeof(s_align_n), "8-byte align"
1627                             " and up to 2^%ju-byte extended align",
1628                             (uintmax_t) an);
1629                 else
1630                         snprintf(s_align_n, sizeof(s_align_n), "Unknown (%ju)",
1631                             (uintmax_t) an);
1632                 return (s_align_n);
1633         }
1634 }
1635
1636 static const char *
1637 aeabi_align_preserved(uint64_t ap)
1638 {
1639         static char s_align_p[128];
1640
1641         switch (ap) {
1642         case 0: return "No";
1643         case 1: return "8-byte align";
1644         case 2: return "8-byte align and SP % 8 == 0";
1645         case 3: return "Reserved";
1646         default:
1647                 if (ap >= 4 && ap <= 12)
1648                         snprintf(s_align_p, sizeof(s_align_p), "8-byte align"
1649                             " and SP %% 8 == 0 and up to 2^%ju-byte extended"
1650                             " align", (uintmax_t) ap);
1651                 else
1652                         snprintf(s_align_p, sizeof(s_align_p), "Unknown (%ju)",
1653                             (uintmax_t) ap);
1654                 return (s_align_p);
1655         }
1656 }
1657
1658 static const char *
1659 aeabi_fp_rounding(uint64_t fr)
1660 {
1661         static char s_fp_r[32];
1662
1663         switch (fr) {
1664         case 0: return "Unused";
1665         case 1: return "Needed";
1666         default:
1667                 snprintf(s_fp_r, sizeof(s_fp_r), "Unknown (%ju)",
1668                     (uintmax_t) fr);
1669                 return (s_fp_r);
1670         }
1671 }
1672
1673 static const char *
1674 aeabi_fp_denormal(uint64_t fd)
1675 {
1676         static char s_fp_d[32];
1677
1678         switch (fd) {
1679         case 0: return "Unused";
1680         case 1: return "Needed";
1681         case 2: return "Sign Only";
1682         default:
1683                 snprintf(s_fp_d, sizeof(s_fp_d), "Unknown (%ju)",
1684                     (uintmax_t) fd);
1685                 return (s_fp_d);
1686         }
1687 }
1688
1689 static const char *
1690 aeabi_fp_exceptions(uint64_t fe)
1691 {
1692         static char s_fp_e[32];
1693
1694         switch (fe) {
1695         case 0: return "Unused";
1696         case 1: return "Needed";
1697         default:
1698                 snprintf(s_fp_e, sizeof(s_fp_e), "Unknown (%ju)",
1699                     (uintmax_t) fe);
1700                 return (s_fp_e);
1701         }
1702 }
1703
1704 static const char *
1705 aeabi_fp_user_exceptions(uint64_t fu)
1706 {
1707         static char s_fp_u[32];
1708
1709         switch (fu) {
1710         case 0: return "Unused";
1711         case 1: return "Needed";
1712         default:
1713                 snprintf(s_fp_u, sizeof(s_fp_u), "Unknown (%ju)",
1714                     (uintmax_t) fu);
1715                 return (s_fp_u);
1716         }
1717 }
1718
1719 static const char *
1720 aeabi_fp_number_model(uint64_t fn)
1721 {
1722         static char s_fp_n[32];
1723
1724         switch (fn) {
1725         case 0: return "Unused";
1726         case 1: return "IEEE 754 normal";
1727         case 2: return "RTABI";
1728         case 3: return "IEEE 754";
1729         default:
1730                 snprintf(s_fp_n, sizeof(s_fp_n), "Unknown (%ju)",
1731                     (uintmax_t) fn);
1732                 return (s_fp_n);
1733         }
1734 }
1735
1736 static const char *
1737 aeabi_fp_16bit_format(uint64_t fp16)
1738 {
1739         static char s_fp_16[64];
1740
1741         switch (fp16) {
1742         case 0: return "None";
1743         case 1: return "IEEE 754";
1744         case 2: return "VFPv3/Advanced SIMD (alternative format)";
1745         default:
1746                 snprintf(s_fp_16, sizeof(s_fp_16), "Unknown (%ju)",
1747                     (uintmax_t) fp16);
1748                 return (s_fp_16);
1749         }
1750 }
1751
1752 static const char *
1753 aeabi_mpext(uint64_t mp)
1754 {
1755         static char s_mp[32];
1756
1757         switch (mp) {
1758         case 0: return "Not allowed";
1759         case 1: return "Allowed";
1760         default:
1761                 snprintf(s_mp, sizeof(s_mp), "Unknown (%ju)",
1762                     (uintmax_t) mp);
1763                 return (s_mp);
1764         }
1765 }
1766
1767 static const char *
1768 aeabi_div(uint64_t du)
1769 {
1770         static char s_du[32];
1771
1772         switch (du) {
1773         case 0: return "Yes (V7-R/V7-M)";
1774         case 1: return "No";
1775         case 2: return "Yes (V7-A)";
1776         default:
1777                 snprintf(s_du, sizeof(s_du), "Unknown (%ju)",
1778                     (uintmax_t) du);
1779                 return (s_du);
1780         }
1781 }
1782
1783 static const char *
1784 aeabi_t2ee(uint64_t t2ee)
1785 {
1786         static char s_t2ee[32];
1787
1788         switch (t2ee) {
1789         case 0: return "Not allowed";
1790         case 1: return "Allowed";
1791         default:
1792                 snprintf(s_t2ee, sizeof(s_t2ee), "Unknown(%ju)",
1793                     (uintmax_t) t2ee);
1794                 return (s_t2ee);
1795         }
1796
1797 }
1798
1799 static const char *
1800 aeabi_hardfp(uint64_t hfp)
1801 {
1802         static char s_hfp[32];
1803
1804         switch (hfp) {
1805         case 0: return "Tag_FP_arch";
1806         case 1: return "only SP";
1807         case 2: return "only DP";
1808         case 3: return "both SP and DP";
1809         default:
1810                 snprintf(s_hfp, sizeof(s_hfp), "Unknown (%ju)",
1811                     (uintmax_t) hfp);
1812                 return (s_hfp);
1813         }
1814 }
1815
1816 static const char *
1817 aeabi_vfp_args(uint64_t va)
1818 {
1819         static char s_va[32];
1820
1821         switch (va) {
1822         case 0: return "AAPCS (base variant)";
1823         case 1: return "AAPCS (VFP variant)";
1824         case 2: return "toolchain-specific";
1825         default:
1826                 snprintf(s_va, sizeof(s_va), "Unknown (%ju)", (uintmax_t) va);
1827                 return (s_va);
1828         }
1829 }
1830
1831 static const char *
1832 aeabi_wmmx_args(uint64_t wa)
1833 {
1834         static char s_wa[32];
1835
1836         switch (wa) {
1837         case 0: return "AAPCS (base variant)";
1838         case 1: return "Intel WMMX";
1839         case 2: return "toolchain-specific";
1840         default:
1841                 snprintf(s_wa, sizeof(s_wa), "Unknown(%ju)", (uintmax_t) wa);
1842                 return (s_wa);
1843         }
1844 }
1845
1846 static const char *
1847 aeabi_unaligned_access(uint64_t ua)
1848 {
1849         static char s_ua[32];
1850
1851         switch (ua) {
1852         case 0: return "Not allowed";
1853         case 1: return "Allowed";
1854         default:
1855                 snprintf(s_ua, sizeof(s_ua), "Unknown(%ju)", (uintmax_t) ua);
1856                 return (s_ua);
1857         }
1858 }
1859
1860 static const char *
1861 aeabi_fp_hpext(uint64_t fh)
1862 {
1863         static char s_fh[32];
1864
1865         switch (fh) {
1866         case 0: return "Not allowed";
1867         case 1: return "Allowed";
1868         default:
1869                 snprintf(s_fh, sizeof(s_fh), "Unknown(%ju)", (uintmax_t) fh);
1870                 return (s_fh);
1871         }
1872 }
1873
1874 static const char *
1875 aeabi_optm_goal(uint64_t og)
1876 {
1877         static char s_og[32];
1878
1879         switch (og) {
1880         case 0: return "None";
1881         case 1: return "Speed";
1882         case 2: return "Speed aggressive";
1883         case 3: return "Space";
1884         case 4: return "Space aggressive";
1885         case 5: return "Debugging";
1886         case 6: return "Best Debugging";
1887         default:
1888                 snprintf(s_og, sizeof(s_og), "Unknown(%ju)", (uintmax_t) og);
1889                 return (s_og);
1890         }
1891 }
1892
1893 static const char *
1894 aeabi_fp_optm_goal(uint64_t fog)
1895 {
1896         static char s_fog[32];
1897
1898         switch (fog) {
1899         case 0: return "None";
1900         case 1: return "Speed";
1901         case 2: return "Speed aggressive";
1902         case 3: return "Space";
1903         case 4: return "Space aggressive";
1904         case 5: return "Accurary";
1905         case 6: return "Best Accurary";
1906         default:
1907                 snprintf(s_fog, sizeof(s_fog), "Unknown(%ju)",
1908                     (uintmax_t) fog);
1909                 return (s_fog);
1910         }
1911 }
1912
1913 static const char *
1914 aeabi_virtual(uint64_t vt)
1915 {
1916         static char s_virtual[64];
1917
1918         switch (vt) {
1919         case 0: return "No";
1920         case 1: return "TrustZone";
1921         case 2: return "Virtualization extension";
1922         case 3: return "TrustZone and virtualization extension";
1923         default:
1924                 snprintf(s_virtual, sizeof(s_virtual), "Unknown(%ju)",
1925                     (uintmax_t) vt);
1926                 return (s_virtual);
1927         }
1928 }
1929
1930 static struct {
1931         uint64_t tag;
1932         const char *s_tag;
1933         const char *(*get_desc)(uint64_t val);
1934 } aeabi_tags[] = {
1935         {4, "Tag_CPU_raw_name", NULL},
1936         {5, "Tag_CPU_name", NULL},
1937         {6, "Tag_CPU_arch", aeabi_cpu_arch},
1938         {7, "Tag_CPU_arch_profile", aeabi_cpu_arch_profile},
1939         {8, "Tag_ARM_ISA_use", aeabi_arm_isa},
1940         {9, "Tag_THUMB_ISA_use", aeabi_thumb_isa},
1941         {10, "Tag_FP_arch", aeabi_fp_arch},
1942         {11, "Tag_WMMX_arch", aeabi_wmmx_arch},
1943         {12, "Tag_Advanced_SIMD_arch", aeabi_adv_simd_arch},
1944         {13, "Tag_PCS_config", aeabi_pcs_config},
1945         {14, "Tag_ABI_PCS_R9_use", aeabi_pcs_r9},
1946         {15, "Tag_ABI_PCS_RW_data", aeabi_pcs_rw},
1947         {16, "Tag_ABI_PCS_RO_data", aeabi_pcs_ro},
1948         {17, "Tag_ABI_PCS_GOT_use", aeabi_pcs_got},
1949         {18, "Tag_ABI_PCS_wchar_t", aeabi_pcs_wchar_t},
1950         {19, "Tag_ABI_FP_rounding", aeabi_fp_rounding},
1951         {20, "Tag_ABI_FP_denormal", aeabi_fp_denormal},
1952         {21, "Tag_ABI_FP_exceptions", aeabi_fp_exceptions},
1953         {22, "Tag_ABI_FP_user_exceptions", aeabi_fp_user_exceptions},
1954         {23, "Tag_ABI_FP_number_model", aeabi_fp_number_model},
1955         {24, "Tag_ABI_align_needed", aeabi_align_needed},
1956         {25, "Tag_ABI_align_preserved", aeabi_align_preserved},
1957         {26, "Tag_ABI_enum_size", aeabi_enum_size},
1958         {27, "Tag_ABI_HardFP_use", aeabi_hardfp},
1959         {28, "Tag_ABI_VFP_args", aeabi_vfp_args},
1960         {29, "Tag_ABI_WMMX_args", aeabi_wmmx_args},
1961         {30, "Tag_ABI_optimization_goals", aeabi_optm_goal},
1962         {31, "Tag_ABI_FP_optimization_goals", aeabi_fp_optm_goal},
1963         {32, "Tag_compatibility", NULL},
1964         {34, "Tag_CPU_unaligned_access", aeabi_unaligned_access},
1965         {36, "Tag_FP_HP_extension", aeabi_fp_hpext},
1966         {38, "Tag_ABI_FP_16bit_format", aeabi_fp_16bit_format},
1967         {42, "Tag_MPextension_use", aeabi_mpext},
1968         {44, "Tag_DIV_use", aeabi_div},
1969         {64, "Tag_nodefaults", NULL},
1970         {65, "Tag_also_compatible_with", NULL},
1971         {66, "Tag_T2EE_use", aeabi_t2ee},
1972         {67, "Tag_conformance", NULL},
1973         {68, "Tag_Virtualization_use", aeabi_virtual},
1974         {70, "Tag_MPextension_use", aeabi_mpext},
1975 };
1976
1977 static const char *
1978 mips_abi_fp(uint64_t fp)
1979 {
1980         static char s_mips_abi_fp[64];
1981
1982         switch (fp) {
1983         case 0: return "N/A";
1984         case 1: return "Hard float (double precision)";
1985         case 2: return "Hard float (single precision)";
1986         case 3: return "Soft float";
1987         case 4: return "64-bit float (-mips32r2 -mfp64)";
1988         default:
1989                 snprintf(s_mips_abi_fp, sizeof(s_mips_abi_fp), "Unknown(%ju)",
1990                     (uintmax_t) fp);
1991                 return (s_mips_abi_fp);
1992         }
1993 }
1994
1995 static const char *
1996 ppc_abi_fp(uint64_t fp)
1997 {
1998         static char s_ppc_abi_fp[64];
1999
2000         switch (fp) {
2001         case 0: return "N/A";
2002         case 1: return "Hard float (double precision)";
2003         case 2: return "Soft float";
2004         case 3: return "Hard float (single precision)";
2005         default:
2006                 snprintf(s_ppc_abi_fp, sizeof(s_ppc_abi_fp), "Unknown(%ju)",
2007                     (uintmax_t) fp);
2008                 return (s_ppc_abi_fp);
2009         }
2010 }
2011
2012 static const char *
2013 ppc_abi_vector(uint64_t vec)
2014 {
2015         static char s_vec[64];
2016
2017         switch (vec) {
2018         case 0: return "N/A";
2019         case 1: return "Generic purpose registers";
2020         case 2: return "AltiVec registers";
2021         case 3: return "SPE registers";
2022         default:
2023                 snprintf(s_vec, sizeof(s_vec), "Unknown(%ju)", (uintmax_t) vec);
2024                 return (s_vec);
2025         }
2026 }
2027
2028 static const char *
2029 dwarf_reg(unsigned int mach, unsigned int reg)
2030 {
2031
2032         switch (mach) {
2033         case EM_386:
2034         case EM_IAMCU:
2035                 switch (reg) {
2036                 case 0: return "eax";
2037                 case 1: return "ecx";
2038                 case 2: return "edx";
2039                 case 3: return "ebx";
2040                 case 4: return "esp";
2041                 case 5: return "ebp";
2042                 case 6: return "esi";
2043                 case 7: return "edi";
2044                 case 8: return "eip";
2045                 case 9: return "eflags";
2046                 case 11: return "st0";
2047                 case 12: return "st1";
2048                 case 13: return "st2";
2049                 case 14: return "st3";
2050                 case 15: return "st4";
2051                 case 16: return "st5";
2052                 case 17: return "st6";
2053                 case 18: return "st7";
2054                 case 21: return "xmm0";
2055                 case 22: return "xmm1";
2056                 case 23: return "xmm2";
2057                 case 24: return "xmm3";
2058                 case 25: return "xmm4";
2059                 case 26: return "xmm5";
2060                 case 27: return "xmm6";
2061                 case 28: return "xmm7";
2062                 case 29: return "mm0";
2063                 case 30: return "mm1";
2064                 case 31: return "mm2";
2065                 case 32: return "mm3";
2066                 case 33: return "mm4";
2067                 case 34: return "mm5";
2068                 case 35: return "mm6";
2069                 case 36: return "mm7";
2070                 case 37: return "fcw";
2071                 case 38: return "fsw";
2072                 case 39: return "mxcsr";
2073                 case 40: return "es";
2074                 case 41: return "cs";
2075                 case 42: return "ss";
2076                 case 43: return "ds";
2077                 case 44: return "fs";
2078                 case 45: return "gs";
2079                 case 48: return "tr";
2080                 case 49: return "ldtr";
2081                 default: return (NULL);
2082                 }
2083         case EM_RISCV:
2084                 switch (reg) {
2085                 case 0: return "zero";
2086                 case 1: return "ra";
2087                 case 2: return "sp";
2088                 case 3: return "gp";
2089                 case 4: return "tp";
2090                 case 5: return "t0";
2091                 case 6: return "t1";
2092                 case 7: return "t2";
2093                 case 8: return "s0";
2094                 case 9: return "s1";
2095                 case 10: return "a0";
2096                 case 11: return "a1";
2097                 case 12: return "a2";
2098                 case 13: return "a3";
2099                 case 14: return "a4";
2100                 case 15: return "a5";
2101                 case 16: return "a6";
2102                 case 17: return "a7";
2103                 case 18: return "s2";
2104                 case 19: return "s3";
2105                 case 20: return "s4";
2106                 case 21: return "s5";
2107                 case 22: return "s6";
2108                 case 23: return "s7";
2109                 case 24: return "s8";
2110                 case 25: return "s9";
2111                 case 26: return "s10";
2112                 case 27: return "s11";
2113                 case 28: return "t3";
2114                 case 29: return "t4";
2115                 case 30: return "t5";
2116                 case 31: return "t6";
2117                 case 32: return "ft0";
2118                 case 33: return "ft1";
2119                 case 34: return "ft2";
2120                 case 35: return "ft3";
2121                 case 36: return "ft4";
2122                 case 37: return "ft5";
2123                 case 38: return "ft6";
2124                 case 39: return "ft7";
2125                 case 40: return "fs0";
2126                 case 41: return "fs1";
2127                 case 42: return "fa0";
2128                 case 43: return "fa1";
2129                 case 44: return "fa2";
2130                 case 45: return "fa3";
2131                 case 46: return "fa4";
2132                 case 47: return "fa5";
2133                 case 48: return "fa6";
2134                 case 49: return "fa7";
2135                 case 50: return "fs2";
2136                 case 51: return "fs3";
2137                 case 52: return "fs4";
2138                 case 53: return "fs5";
2139                 case 54: return "fs6";
2140                 case 55: return "fs7";
2141                 case 56: return "fs8";
2142                 case 57: return "fs9";
2143                 case 58: return "fs10";
2144                 case 59: return "fs11";
2145                 case 60: return "ft8";
2146                 case 61: return "ft9";
2147                 case 62: return "ft10";
2148                 case 63: return "ft11";
2149                 default: return (NULL);
2150                 }
2151         case EM_X86_64:
2152                 switch (reg) {
2153                 case 0: return "rax";
2154                 case 1: return "rdx";
2155                 case 2: return "rcx";
2156                 case 3: return "rbx";
2157                 case 4: return "rsi";
2158                 case 5: return "rdi";
2159                 case 6: return "rbp";
2160                 case 7: return "rsp";
2161                 case 16: return "rip";
2162                 case 17: return "xmm0";
2163                 case 18: return "xmm1";
2164                 case 19: return "xmm2";
2165                 case 20: return "xmm3";
2166                 case 21: return "xmm4";
2167                 case 22: return "xmm5";
2168                 case 23: return "xmm6";
2169                 case 24: return "xmm7";
2170                 case 25: return "xmm8";
2171                 case 26: return "xmm9";
2172                 case 27: return "xmm10";
2173                 case 28: return "xmm11";
2174                 case 29: return "xmm12";
2175                 case 30: return "xmm13";
2176                 case 31: return "xmm14";
2177                 case 32: return "xmm15";
2178                 case 33: return "st0";
2179                 case 34: return "st1";
2180                 case 35: return "st2";
2181                 case 36: return "st3";
2182                 case 37: return "st4";
2183                 case 38: return "st5";
2184                 case 39: return "st6";
2185                 case 40: return "st7";
2186                 case 41: return "mm0";
2187                 case 42: return "mm1";
2188                 case 43: return "mm2";
2189                 case 44: return "mm3";
2190                 case 45: return "mm4";
2191                 case 46: return "mm5";
2192                 case 47: return "mm6";
2193                 case 48: return "mm7";
2194                 case 49: return "rflags";
2195                 case 50: return "es";
2196                 case 51: return "cs";
2197                 case 52: return "ss";
2198                 case 53: return "ds";
2199                 case 54: return "fs";
2200                 case 55: return "gs";
2201                 case 58: return "fs.base";
2202                 case 59: return "gs.base";
2203                 case 62: return "tr";
2204                 case 63: return "ldtr";
2205                 case 64: return "mxcsr";
2206                 case 65: return "fcw";
2207                 case 66: return "fsw";
2208                 default: return (NULL);
2209                 }
2210         default:
2211                 return (NULL);
2212         }
2213 }
2214
2215 static void
2216 dump_ehdr(struct readelf *re)
2217 {
2218         size_t           phnum, shnum, shstrndx;
2219         int              i;
2220
2221         printf("ELF Header:\n");
2222
2223         /* e_ident[]. */
2224         printf("  Magic:   ");
2225         for (i = 0; i < EI_NIDENT; i++)
2226                 printf("%.2x ", re->ehdr.e_ident[i]);
2227         putchar('\n');
2228
2229         /* EI_CLASS. */
2230         printf("%-37s%s\n", "  Class:", elf_class(re->ehdr.e_ident[EI_CLASS]));
2231
2232         /* EI_DATA. */
2233         printf("%-37s%s\n", "  Data:", elf_endian(re->ehdr.e_ident[EI_DATA]));
2234
2235         /* EI_VERSION. */
2236         printf("%-37s%d %s\n", "  Version:", re->ehdr.e_ident[EI_VERSION],
2237             elf_ver(re->ehdr.e_ident[EI_VERSION]));
2238
2239         /* EI_OSABI. */
2240         printf("%-37s%s\n", "  OS/ABI:", elf_osabi(re->ehdr.e_ident[EI_OSABI]));
2241
2242         /* EI_ABIVERSION. */
2243         printf("%-37s%d\n", "  ABI Version:", re->ehdr.e_ident[EI_ABIVERSION]);
2244
2245         /* e_type. */
2246         printf("%-37s%s\n", "  Type:", elf_type(re->ehdr.e_type));
2247
2248         /* e_machine. */
2249         printf("%-37s%s\n", "  Machine:", elf_machine(re->ehdr.e_machine));
2250
2251         /* e_version. */
2252         printf("%-37s%#x\n", "  Version:", re->ehdr.e_version);
2253
2254         /* e_entry. */
2255         printf("%-37s%#jx\n", "  Entry point address:",
2256             (uintmax_t)re->ehdr.e_entry);
2257
2258         /* e_phoff. */
2259         printf("%-37s%ju (bytes into file)\n", "  Start of program headers:",
2260             (uintmax_t)re->ehdr.e_phoff);
2261
2262         /* e_shoff. */
2263         printf("%-37s%ju (bytes into file)\n", "  Start of section headers:",
2264             (uintmax_t)re->ehdr.e_shoff);
2265
2266         /* e_flags. */
2267         printf("%-37s%#x", "  Flags:", re->ehdr.e_flags);
2268         dump_eflags(re, re->ehdr.e_flags);
2269         putchar('\n');
2270
2271         /* e_ehsize. */
2272         printf("%-37s%u (bytes)\n", "  Size of this header:",
2273             re->ehdr.e_ehsize);
2274
2275         /* e_phentsize. */
2276         printf("%-37s%u (bytes)\n", "  Size of program headers:",
2277             re->ehdr.e_phentsize);
2278
2279         /* e_phnum. */
2280         printf("%-37s%u", "  Number of program headers:", re->ehdr.e_phnum);
2281         if (re->ehdr.e_phnum == PN_XNUM) {
2282                 /* Extended program header numbering is in use. */
2283                 if (elf_getphnum(re->elf, &phnum))
2284                         printf(" (%zu)", phnum);
2285         }
2286         putchar('\n');
2287
2288         /* e_shentsize. */
2289         printf("%-37s%u (bytes)\n", "  Size of section headers:",
2290             re->ehdr.e_shentsize);
2291
2292         /* e_shnum. */
2293         printf("%-37s%u", "  Number of section headers:", re->ehdr.e_shnum);
2294         if (re->ehdr.e_shnum == SHN_UNDEF) {
2295                 /* Extended section numbering is in use. */
2296                 if (elf_getshnum(re->elf, &shnum))
2297                         printf(" (%ju)", (uintmax_t)shnum);
2298         }
2299         putchar('\n');
2300
2301         /* e_shstrndx. */
2302         printf("%-37s%u", "  Section header string table index:",
2303             re->ehdr.e_shstrndx);
2304         if (re->ehdr.e_shstrndx == SHN_XINDEX) {
2305                 /* Extended section numbering is in use. */
2306                 if (elf_getshstrndx(re->elf, &shstrndx))
2307                         printf(" (%ju)", (uintmax_t)shstrndx);
2308         }
2309         putchar('\n');
2310 }
2311
2312 static void
2313 dump_eflags(struct readelf *re, uint64_t e_flags)
2314 {
2315         struct eflags_desc *edesc;
2316         int arm_eabi;
2317
2318         edesc = NULL;
2319         switch (re->ehdr.e_machine) {
2320         case EM_ARM:
2321                 arm_eabi = (e_flags & EF_ARM_EABIMASK) >> 24;
2322                 if (arm_eabi == 0)
2323                         printf(", GNU EABI");
2324                 else if (arm_eabi <= 5)
2325                         printf(", Version%d EABI", arm_eabi);
2326                 edesc = arm_eflags_desc;
2327                 break;
2328         case EM_MIPS:
2329         case EM_MIPS_RS3_LE:
2330                 switch ((e_flags & EF_MIPS_ARCH) >> 28) {
2331                 case 0: printf(", mips1"); break;
2332                 case 1: printf(", mips2"); break;
2333                 case 2: printf(", mips3"); break;
2334                 case 3: printf(", mips4"); break;
2335                 case 4: printf(", mips5"); break;
2336                 case 5: printf(", mips32"); break;
2337                 case 6: printf(", mips64"); break;
2338                 case 7: printf(", mips32r2"); break;
2339                 case 8: printf(", mips64r2"); break;
2340                 default: break;
2341                 }
2342                 switch ((e_flags & 0x00FF0000) >> 16) {
2343                 case 0x81: printf(", 3900"); break;
2344                 case 0x82: printf(", 4010"); break;
2345                 case 0x83: printf(", 4100"); break;
2346                 case 0x85: printf(", 4650"); break;
2347                 case 0x87: printf(", 4120"); break;
2348                 case 0x88: printf(", 4111"); break;
2349                 case 0x8a: printf(", sb1"); break;
2350                 case 0x8b: printf(", octeon"); break;
2351                 case 0x8c: printf(", xlr"); break;
2352                 case 0x91: printf(", 5400"); break;
2353                 case 0x98: printf(", 5500"); break;
2354                 case 0x99: printf(", 9000"); break;
2355                 case 0xa0: printf(", loongson-2e"); break;
2356                 case 0xa1: printf(", loongson-2f"); break;
2357                 default: break;
2358                 }
2359                 switch ((e_flags & 0x0000F000) >> 12) {
2360                 case 1: printf(", o32"); break;
2361                 case 2: printf(", o64"); break;
2362                 case 3: printf(", eabi32"); break;
2363                 case 4: printf(", eabi64"); break;
2364                 default: break;
2365                 }
2366                 edesc = mips_eflags_desc;
2367                 break;
2368         case EM_PPC64:
2369                 switch (e_flags) {
2370                 case 0: printf(", Unspecified or Power ELF V1 ABI"); break;
2371                 case 1: printf(", Power ELF V1 ABI"); break;
2372                 case 2: printf(", OpenPOWER ELF V2 ABI"); break;
2373                 default: break;
2374                 }
2375                 /* explicit fall through*/
2376         case EM_PPC:
2377                 edesc = powerpc_eflags_desc;
2378                 break;
2379         case EM_RISCV:
2380                 switch (e_flags & EF_RISCV_FLOAT_ABI_MASK) {
2381                 case EF_RISCV_FLOAT_ABI_SOFT:
2382                         printf(", soft-float ABI");
2383                         break;
2384                 case EF_RISCV_FLOAT_ABI_SINGLE:
2385                         printf(", single-float ABI");
2386                         break;
2387                 case EF_RISCV_FLOAT_ABI_DOUBLE:
2388                         printf(", double-float ABI");
2389                         break;
2390                 case EF_RISCV_FLOAT_ABI_QUAD:
2391                         printf(", quad-float ABI");
2392                         break;
2393                 }
2394                 edesc = riscv_eflags_desc;
2395                 break;
2396         case EM_SPARC:
2397         case EM_SPARC32PLUS:
2398         case EM_SPARCV9:
2399                 switch ((e_flags & EF_SPARCV9_MM)) {
2400                 case EF_SPARCV9_TSO: printf(", tso"); break;
2401                 case EF_SPARCV9_PSO: printf(", pso"); break;
2402                 case EF_SPARCV9_MM: printf(", rmo"); break;
2403                 default: break;
2404                 }
2405                 edesc = sparc_eflags_desc;
2406                 break;
2407         default:
2408                 break;
2409         }
2410
2411         if (edesc != NULL) {
2412                 while (edesc->desc != NULL) {
2413                         if (e_flags & edesc->flag)
2414                                 printf(", %s", edesc->desc);
2415                         edesc++;
2416                 }
2417         }
2418 }
2419
2420 static void
2421 dump_phdr(struct readelf *re)
2422 {
2423         const char      *rawfile;
2424         GElf_Phdr        phdr;
2425         size_t           phnum, size;
2426         int              i, j;
2427
2428 #define PH_HDR  "Type", "Offset", "VirtAddr", "PhysAddr", "FileSiz",    \
2429                 "MemSiz", "Flg", "Align"
2430 #define PH_CT   phdr_type(re->ehdr.e_machine, phdr.p_type),             \
2431                 (uintmax_t)phdr.p_offset, (uintmax_t)phdr.p_vaddr,      \
2432                 (uintmax_t)phdr.p_paddr, (uintmax_t)phdr.p_filesz,      \
2433                 (uintmax_t)phdr.p_memsz,                                \
2434                 phdr.p_flags & PF_R ? 'R' : ' ',                        \
2435                 phdr.p_flags & PF_W ? 'W' : ' ',                        \
2436                 phdr.p_flags & PF_X ? 'E' : ' ',                        \
2437                 (uintmax_t)phdr.p_align
2438
2439         if (elf_getphnum(re->elf, &phnum) == 0) {
2440                 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
2441                 return;
2442         }
2443         if (phnum == 0) {
2444                 printf("\nThere are no program headers in this file.\n");
2445                 return;
2446         }
2447
2448         printf("\nElf file type is %s", elf_type(re->ehdr.e_type));
2449         printf("\nEntry point 0x%jx\n", (uintmax_t)re->ehdr.e_entry);
2450         printf("There are %ju program headers, starting at offset %ju\n",
2451             (uintmax_t)phnum, (uintmax_t)re->ehdr.e_phoff);
2452
2453         /* Dump program headers. */
2454         printf("\nProgram Headers:\n");
2455         if (re->ec == ELFCLASS32)
2456                 printf("  %-15s%-9s%-11s%-11s%-8s%-8s%-4s%s\n", PH_HDR);
2457         else if (re->options & RE_WW)
2458                 printf("  %-15s%-9s%-19s%-19s%-9s%-9s%-4s%s\n", PH_HDR);
2459         else
2460                 printf("  %-15s%-19s%-19s%s\n                 %-19s%-20s"
2461                     "%-7s%s\n", PH_HDR);
2462         for (i = 0; (size_t) i < phnum; i++) {
2463                 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2464                         warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2465                         continue;
2466                 }
2467                 /* TODO: Add arch-specific segment type dump. */
2468                 if (re->ec == ELFCLASS32)
2469                         printf("  %-14.14s 0x%6.6jx 0x%8.8jx 0x%8.8jx "
2470                             "0x%5.5jx 0x%5.5jx %c%c%c %#jx\n", PH_CT);
2471                 else if (re->options & RE_WW)
2472                         printf("  %-14.14s 0x%6.6jx 0x%16.16jx 0x%16.16jx "
2473                             "0x%6.6jx 0x%6.6jx %c%c%c %#jx\n", PH_CT);
2474                 else
2475                         printf("  %-14.14s 0x%16.16jx 0x%16.16jx 0x%16.16jx\n"
2476                             "                 0x%16.16jx 0x%16.16jx  %c%c%c"
2477                             "    %#jx\n", PH_CT);
2478                 if (phdr.p_type == PT_INTERP) {
2479                         if ((rawfile = elf_rawfile(re->elf, &size)) == NULL) {
2480                                 warnx("elf_rawfile failed: %s", elf_errmsg(-1));
2481                                 continue;
2482                         }
2483                         if (phdr.p_offset >= size) {
2484                                 warnx("invalid program header offset");
2485                                 continue;
2486                         }
2487                         printf("      [Requesting program interpreter: %s]\n",
2488                                 rawfile + phdr.p_offset);
2489                 }
2490         }
2491
2492         /* Dump section to segment mapping. */
2493         if (re->shnum == 0)
2494                 return;
2495         printf("\n Section to Segment mapping:\n");
2496         printf("  Segment Sections...\n");
2497         for (i = 0; (size_t)i < phnum; i++) {
2498                 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2499                         warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2500                         continue;
2501                 }
2502                 printf("   %2.2d     ", i);
2503                 /* skip NULL section. */
2504                 for (j = 1; (size_t)j < re->shnum; j++) {
2505                         if (re->sl[j].off < phdr.p_offset)
2506                                 continue;
2507                         if (re->sl[j].off + re->sl[j].sz >
2508                             phdr.p_offset + phdr.p_filesz &&
2509                             re->sl[j].type != SHT_NOBITS)
2510                                 continue;
2511                         if (re->sl[j].addr < phdr.p_vaddr ||
2512                             re->sl[j].addr + re->sl[j].sz >
2513                             phdr.p_vaddr + phdr.p_memsz)
2514                                 continue;
2515                         if (phdr.p_type == PT_TLS &&
2516                             (re->sl[j].flags & SHF_TLS) == 0)
2517                                 continue;
2518                         printf("%s ", re->sl[j].name);
2519                 }
2520                 printf("\n");
2521         }
2522 #undef  PH_HDR
2523 #undef  PH_CT
2524 }
2525
2526 static char *
2527 section_flags(struct readelf *re, struct section *s)
2528 {
2529 #define BUF_SZ 256
2530         static char     buf[BUF_SZ];
2531         int             i, p, nb;
2532
2533         p = 0;
2534         nb = re->ec == ELFCLASS32 ? 8 : 16;
2535         if (re->options & RE_T) {
2536                 snprintf(buf, BUF_SZ, "[%*.*jx]: ", nb, nb,
2537                     (uintmax_t)s->flags);
2538                 p += nb + 4;
2539         }
2540         for (i = 0; section_flag[i].ln != NULL; i++) {
2541                 if ((s->flags & section_flag[i].value) == 0)
2542                         continue;
2543                 if (re->options & RE_T) {
2544                         snprintf(&buf[p], BUF_SZ - p, "%s, ",
2545                             section_flag[i].ln);
2546                         p += strlen(section_flag[i].ln) + 2;
2547                 } else
2548                         buf[p++] = section_flag[i].sn;
2549         }
2550         if (re->options & RE_T && p > nb + 4)
2551                 p -= 2;
2552         buf[p] = '\0';
2553
2554         return (buf);
2555 }
2556
2557 static void
2558 dump_shdr(struct readelf *re)
2559 {
2560         struct section  *s;
2561         int              i;
2562
2563 #define S_HDR   "[Nr] Name", "Type", "Addr", "Off", "Size", "ES",       \
2564                 "Flg", "Lk", "Inf", "Al"
2565 #define S_HDRL  "[Nr] Name", "Type", "Address", "Offset", "Size",       \
2566                 "EntSize", "Flags", "Link", "Info", "Align"
2567 #define ST_HDR  "[Nr] Name", "Type", "Addr", "Off", "Size", "ES",       \
2568                 "Lk", "Inf", "Al", "Flags"
2569 #define ST_HDRL "[Nr] Name", "Type", "Address", "Offset", "Link",       \
2570                 "Size", "EntSize", "Info", "Align", "Flags"
2571 #define S_CT    i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2572                 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2573                 (uintmax_t)s->entsize, section_flags(re, s),            \
2574                 s->link, s->info, (uintmax_t)s->align
2575 #define ST_CT   i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2576                 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2577                 (uintmax_t)s->entsize, s->link, s->info,                \
2578                 (uintmax_t)s->align, section_flags(re, s)
2579 #define ST_CTL  i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2580                 (uintmax_t)s->addr, (uintmax_t)s->off, s->link,         \
2581                 (uintmax_t)s->sz, (uintmax_t)s->entsize, s->info,       \
2582                 (uintmax_t)s->align, section_flags(re, s)
2583
2584         if (re->shnum == 0) {
2585                 printf("\nThere are no sections in this file.\n");
2586                 return;
2587         }
2588         printf("There are %ju section headers, starting at offset 0x%jx:\n",
2589             (uintmax_t)re->shnum, (uintmax_t)re->ehdr.e_shoff);
2590         printf("\nSection Headers:\n");
2591         if (re->ec == ELFCLASS32) {
2592                 if (re->options & RE_T)
2593                         printf("  %s\n       %-16s%-9s%-7s%-7s%-5s%-3s%-4s%s\n"
2594                             "%12s\n", ST_HDR);
2595                 else
2596                         printf("  %-23s%-16s%-9s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2597                             S_HDR);
2598         } else if (re->options & RE_WW) {
2599                 if (re->options & RE_T)
2600                         printf("  %s\n       %-16s%-17s%-7s%-7s%-5s%-3s%-4s%s\n"
2601                             "%12s\n", ST_HDR);
2602                 else
2603                         printf("  %-23s%-16s%-17s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2604                             S_HDR);
2605         } else {
2606                 if (re->options & RE_T)
2607                         printf("  %s\n       %-18s%-17s%-18s%s\n       %-18s"
2608                             "%-17s%-18s%s\n%12s\n", ST_HDRL);
2609                 else
2610                         printf("  %-23s%-17s%-18s%s\n       %-18s%-17s%-7s%"
2611                             "-6s%-6s%s\n", S_HDRL);
2612         }
2613         for (i = 0; (size_t)i < re->shnum; i++) {
2614                 s = &re->sl[i];
2615                 if (re->ec == ELFCLASS32) {
2616                         if (re->options & RE_T)
2617                                 printf("  [%2d] %s\n       %-15.15s %8.8jx"
2618                                     " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2619                                     "       %s\n", ST_CT);
2620                         else
2621                                 printf("  [%2d] %-17.17s %-15.15s %8.8jx"
2622                                     " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2623                                     S_CT);
2624                 } else if (re->options & RE_WW) {
2625                         if (re->options & RE_T)
2626                                 printf("  [%2d] %s\n       %-15.15s %16.16jx"
2627                                     " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2628                                     "       %s\n", ST_CT);
2629                         else
2630                                 printf("  [%2d] %-17.17s %-15.15s %16.16jx"
2631                                     " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2632                                     S_CT);
2633                 } else {
2634                         if (re->options & RE_T)
2635                                 printf("  [%2d] %s\n       %-15.15s  %16.16jx"
2636                                     "  %16.16jx  %u\n       %16.16jx %16.16jx"
2637                                     "  %-16u  %ju\n       %s\n", ST_CTL);
2638                         else
2639                                 printf("  [%2d] %-17.17s %-15.15s  %16.16jx"
2640                                     "  %8.8jx\n       %16.16jx  %16.16jx "
2641                                     "%3s      %2u   %3u     %ju\n", S_CT);
2642                 }
2643         }
2644         if ((re->options & RE_T) == 0)
2645                 printf("Key to Flags:\n  W (write), A (alloc),"
2646                     " X (execute), M (merge), S (strings)\n"
2647                     "  I (info), L (link order), G (group), x (unknown)\n"
2648                     "  O (extra OS processing required)"
2649                     " o (OS specific), p (processor specific)\n");
2650
2651 #undef  S_HDR
2652 #undef  S_HDRL
2653 #undef  ST_HDR
2654 #undef  ST_HDRL
2655 #undef  S_CT
2656 #undef  ST_CT
2657 #undef  ST_CTL
2658 }
2659
2660 /*
2661  * Return number of entries in the given section. We'd prefer ent_count be a
2662  * size_t *, but libelf APIs already use int for section indices.
2663  */
2664 static int
2665 get_ent_count(struct section *s, int *ent_count)
2666 {
2667         if (s->entsize == 0) {
2668                 warnx("section %s has entry size 0", s->name);
2669                 return (0);
2670         } else if (s->sz / s->entsize > INT_MAX) {
2671                 warnx("section %s has invalid section count", s->name);
2672                 return (0);
2673         }
2674         *ent_count = (int)(s->sz / s->entsize);
2675         return (1);
2676 }
2677
2678 static void
2679 dump_dynamic(struct readelf *re)
2680 {
2681         GElf_Dyn         dyn;
2682         Elf_Data        *d;
2683         struct section  *s;
2684         int              elferr, i, is_dynamic, j, jmax, nentries;
2685
2686         is_dynamic = 0;
2687
2688         for (i = 0; (size_t)i < re->shnum; i++) {
2689                 s = &re->sl[i];
2690                 if (s->type != SHT_DYNAMIC)
2691                         continue;
2692                 (void) elf_errno();
2693                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
2694                         elferr = elf_errno();
2695                         if (elferr != 0)
2696                                 warnx("elf_getdata failed: %s", elf_errmsg(-1));
2697                         continue;
2698                 }
2699                 if (d->d_size <= 0)
2700                         continue;
2701
2702                 is_dynamic = 1;
2703
2704                 /* Determine the actual number of table entries. */
2705                 nentries = 0;
2706                 if (!get_ent_count(s, &jmax))
2707                         continue;
2708                 for (j = 0; j < jmax; j++) {
2709                         if (gelf_getdyn(d, j, &dyn) != &dyn) {
2710                                 warnx("gelf_getdyn failed: %s",
2711                                     elf_errmsg(-1));
2712                                 continue;
2713                         }
2714                         nentries ++;
2715                         if (dyn.d_tag == DT_NULL)
2716                                 break;
2717                 }
2718
2719                 printf("\nDynamic section at offset 0x%jx", (uintmax_t)s->off);
2720                 printf(" contains %u entries:\n", nentries);
2721
2722                 if (re->ec == ELFCLASS32)
2723                         printf("%5s%12s%28s\n", "Tag", "Type", "Name/Value");
2724                 else
2725                         printf("%5s%20s%28s\n", "Tag", "Type", "Name/Value");
2726
2727                 for (j = 0; j < nentries; j++) {
2728                         if (gelf_getdyn(d, j, &dyn) != &dyn)
2729                                 continue;
2730                         /* Dump dynamic entry type. */
2731                         if (re->ec == ELFCLASS32)
2732                                 printf(" 0x%8.8jx", (uintmax_t)dyn.d_tag);
2733                         else
2734                                 printf(" 0x%16.16jx", (uintmax_t)dyn.d_tag);
2735                         printf(" %-20s", dt_type(re->ehdr.e_machine,
2736                             dyn.d_tag));
2737                         /* Dump dynamic entry value. */
2738                         dump_dyn_val(re, &dyn, s->link);
2739                 }
2740         }
2741
2742         if (!is_dynamic)
2743                 printf("\nThere is no dynamic section in this file.\n");
2744 }
2745
2746 static char *
2747 timestamp(time_t ti)
2748 {
2749         static char ts[32];
2750         struct tm *t;
2751
2752         t = gmtime(&ti);
2753         snprintf(ts, sizeof(ts), "%04d-%02d-%02dT%02d:%02d:%02d",
2754             t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour,
2755             t->tm_min, t->tm_sec);
2756
2757         return (ts);
2758 }
2759
2760 static const char *
2761 dyn_str(struct readelf *re, uint32_t stab, uint64_t d_val)
2762 {
2763         const char *name;
2764
2765         if (stab == SHN_UNDEF)
2766                 name = "ERROR";
2767         else if ((name = elf_strptr(re->elf, stab, d_val)) == NULL) {
2768                 (void) elf_errno(); /* clear error */
2769                 name = "ERROR";
2770         }
2771
2772         return (name);
2773 }
2774
2775 static void
2776 dump_arch_dyn_val(struct readelf *re, GElf_Dyn *dyn)
2777 {
2778         switch (re->ehdr.e_machine) {
2779         case EM_MIPS:
2780         case EM_MIPS_RS3_LE:
2781                 switch (dyn->d_tag) {
2782                 case DT_MIPS_RLD_VERSION:
2783                 case DT_MIPS_LOCAL_GOTNO:
2784                 case DT_MIPS_CONFLICTNO:
2785                 case DT_MIPS_LIBLISTNO:
2786                 case DT_MIPS_SYMTABNO:
2787                 case DT_MIPS_UNREFEXTNO:
2788                 case DT_MIPS_GOTSYM:
2789                 case DT_MIPS_HIPAGENO:
2790                 case DT_MIPS_DELTA_CLASS_NO:
2791                 case DT_MIPS_DELTA_INSTANCE_NO:
2792                 case DT_MIPS_DELTA_RELOC_NO:
2793                 case DT_MIPS_DELTA_SYM_NO:
2794                 case DT_MIPS_DELTA_CLASSSYM_NO:
2795                 case DT_MIPS_LOCALPAGE_GOTIDX:
2796                 case DT_MIPS_LOCAL_GOTIDX:
2797                 case DT_MIPS_HIDDEN_GOTIDX:
2798                 case DT_MIPS_PROTECTED_GOTIDX:
2799                         printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2800                         break;
2801                 case DT_MIPS_ICHECKSUM:
2802                 case DT_MIPS_FLAGS:
2803                 case DT_MIPS_BASE_ADDRESS:
2804                 case DT_MIPS_CONFLICT:
2805                 case DT_MIPS_LIBLIST:
2806                 case DT_MIPS_RLD_MAP:
2807                 case DT_MIPS_DELTA_CLASS:
2808                 case DT_MIPS_DELTA_INSTANCE:
2809                 case DT_MIPS_DELTA_RELOC:
2810                 case DT_MIPS_DELTA_SYM:
2811                 case DT_MIPS_DELTA_CLASSSYM:
2812                 case DT_MIPS_CXX_FLAGS:
2813                 case DT_MIPS_PIXIE_INIT:
2814                 case DT_MIPS_SYMBOL_LIB:
2815                 case DT_MIPS_OPTIONS:
2816                 case DT_MIPS_INTERFACE:
2817                 case DT_MIPS_DYNSTR_ALIGN:
2818                 case DT_MIPS_INTERFACE_SIZE:
2819                 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
2820                 case DT_MIPS_COMPACT_SIZE:
2821                 case DT_MIPS_GP_VALUE:
2822                 case DT_MIPS_AUX_DYNAMIC:
2823                 case DT_MIPS_PLTGOT:
2824                 case DT_MIPS_RLD_OBJ_UPDATE:
2825                 case DT_MIPS_RWPLT:
2826                         printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2827                         break;
2828                 case DT_MIPS_IVERSION:
2829                 case DT_MIPS_PERF_SUFFIX:
2830                 case DT_MIPS_TIME_STAMP:
2831                         printf(" %s\n", timestamp(dyn->d_un.d_val));
2832                         break;
2833                 default:
2834                         printf("\n");
2835                         break;
2836                 }
2837                 break;
2838         default:
2839                 printf("\n");
2840                 break;
2841         }
2842 }
2843
2844 static void
2845 dump_flags(struct flag_desc *desc, uint64_t val)
2846 {
2847         struct flag_desc *fd;
2848
2849         for (fd = desc; fd->flag != 0; fd++) {
2850                 if (val & fd->flag) {
2851                         val &= ~fd->flag;
2852                         printf(" %s", fd->desc);
2853                 }
2854         }
2855         if (val != 0)
2856                 printf(" unknown (0x%jx)", (uintmax_t)val);
2857         printf("\n");
2858 }
2859
2860 static struct flag_desc dt_flags[] = {
2861         { DF_ORIGIN,            "ORIGIN" },
2862         { DF_SYMBOLIC,          "SYMBOLIC" },
2863         { DF_TEXTREL,           "TEXTREL" },
2864         { DF_BIND_NOW,          "BIND_NOW" },
2865         { DF_STATIC_TLS,        "STATIC_TLS" },
2866         { 0, NULL }
2867 };
2868
2869 static struct flag_desc dt_flags_1[] = {
2870         { DF_1_BIND_NOW,        "NOW" },
2871         { DF_1_GLOBAL,          "GLOBAL" },
2872         { 0x4,                  "GROUP" },
2873         { DF_1_NODELETE,        "NODELETE" },
2874         { DF_1_LOADFLTR,        "LOADFLTR" },
2875         { 0x20,                 "INITFIRST" },
2876         { DF_1_NOOPEN,          "NOOPEN" },
2877         { DF_1_ORIGIN,          "ORIGIN" },
2878         { 0x100,                "DIRECT" },
2879         { DF_1_INTERPOSE,       "INTERPOSE" },
2880         { DF_1_NODEFLIB,        "NODEFLIB" },
2881         { 0x1000,               "NODUMP" },
2882         { 0x2000,               "CONFALT" },
2883         { 0x4000,               "ENDFILTEE" },
2884         { 0x8000,               "DISPRELDNE" },
2885         { 0x10000,              "DISPRELPND" },
2886         { 0x20000,              "NODIRECT" },
2887         { 0x40000,              "IGNMULDEF" },
2888         { 0x80000,              "NOKSYMS" },
2889         { 0x100000,             "NOHDR" },
2890         { 0x200000,             "EDITED" },
2891         { 0x400000,             "NORELOC" },
2892         { 0x800000,             "SYMINTPOSE" },
2893         { 0x1000000,            "GLOBAUDIT" },
2894         { 0, NULL }
2895 };
2896
2897 static void
2898 dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
2899 {
2900         const char *name;
2901
2902         if (dyn->d_tag >= DT_LOPROC && dyn->d_tag <= DT_HIPROC &&
2903             dyn->d_tag != DT_AUXILIARY && dyn->d_tag != DT_FILTER) {
2904                 dump_arch_dyn_val(re, dyn);
2905                 return;
2906         }
2907
2908         /* These entry values are index into the string table. */
2909         name = NULL;
2910         if (dyn->d_tag == DT_AUXILIARY || dyn->d_tag == DT_FILTER ||
2911             dyn->d_tag == DT_NEEDED || dyn->d_tag == DT_SONAME ||
2912             dyn->d_tag == DT_RPATH || dyn->d_tag == DT_RUNPATH)
2913                 name = dyn_str(re, stab, dyn->d_un.d_val);
2914
2915         switch(dyn->d_tag) {
2916         case DT_NULL:
2917         case DT_PLTGOT:
2918         case DT_HASH:
2919         case DT_STRTAB:
2920         case DT_SYMTAB:
2921         case DT_RELA:
2922         case DT_INIT:
2923         case DT_SYMBOLIC:
2924         case DT_REL:
2925         case DT_DEBUG:
2926         case DT_TEXTREL:
2927         case DT_JMPREL:
2928         case DT_FINI:
2929         case DT_VERDEF:
2930         case DT_VERNEED:
2931         case DT_VERSYM:
2932         case DT_GNU_HASH:
2933         case DT_GNU_LIBLIST:
2934         case DT_GNU_CONFLICT:
2935                 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2936                 break;
2937         case DT_PLTRELSZ:
2938         case DT_RELASZ:
2939         case DT_RELAENT:
2940         case DT_STRSZ:
2941         case DT_SYMENT:
2942         case DT_RELSZ:
2943         case DT_RELENT:
2944         case DT_PREINIT_ARRAYSZ:
2945         case DT_INIT_ARRAYSZ:
2946         case DT_FINI_ARRAYSZ:
2947         case DT_GNU_CONFLICTSZ:
2948         case DT_GNU_LIBLISTSZ:
2949                 printf(" %ju (bytes)\n", (uintmax_t) dyn->d_un.d_val);
2950                 break;
2951         case DT_RELACOUNT:
2952         case DT_RELCOUNT:
2953         case DT_VERDEFNUM:
2954         case DT_VERNEEDNUM:
2955                 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2956                 break;
2957         case DT_AUXILIARY:
2958                 printf(" Auxiliary library: [%s]\n", name);
2959                 break;
2960         case DT_FILTER:
2961                 printf(" Filter library: [%s]\n", name);
2962                 break;
2963         case DT_NEEDED:
2964                 printf(" Shared library: [%s]\n", name);
2965                 break;
2966         case DT_SONAME:
2967                 printf(" Library soname: [%s]\n", name);
2968                 break;
2969         case DT_RPATH:
2970                 printf(" Library rpath: [%s]\n", name);
2971                 break;
2972         case DT_RUNPATH:
2973                 printf(" Library runpath: [%s]\n", name);
2974                 break;
2975         case DT_PLTREL:
2976                 printf(" %s\n", dt_type(re->ehdr.e_machine, dyn->d_un.d_val));
2977                 break;
2978         case DT_GNU_PRELINKED:
2979                 printf(" %s\n", timestamp(dyn->d_un.d_val));
2980                 break;
2981         case DT_FLAGS:
2982                 dump_flags(dt_flags, dyn->d_un.d_val);
2983                 break;
2984         case DT_FLAGS_1:
2985                 dump_flags(dt_flags_1, dyn->d_un.d_val);
2986                 break;
2987         default:
2988                 printf("\n");
2989         }
2990 }
2991
2992 static void
2993 dump_rel(struct readelf *re, struct section *s, Elf_Data *d)
2994 {
2995         GElf_Rel r;
2996         const char *symname;
2997         uint64_t symval;
2998         int i, len;
2999         uint32_t type;
3000         uint8_t type2, type3;
3001
3002         if (s->link >= re->shnum)
3003                 return;
3004
3005 #define REL_HDR "r_offset", "r_info", "r_type", "st_value", "st_name"
3006 #define REL_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,        \
3007                 elftc_reloc_type_str(re->ehdr.e_machine,            \
3008                 ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
3009 #define REL_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,        \
3010                 elftc_reloc_type_str(re->ehdr.e_machine, type),     \
3011                 (uintmax_t)symval, symname
3012
3013         printf("\nRelocation section (%s):\n", s->name);
3014         if (re->ec == ELFCLASS32)
3015                 printf("%-8s %-8s %-19s %-8s %s\n", REL_HDR);
3016         else {
3017                 if (re->options & RE_WW)
3018                         printf("%-16s %-16s %-24s %-16s %s\n", REL_HDR);
3019                 else
3020                         printf("%-12s %-12s %-19s %-16s %s\n", REL_HDR);
3021         }
3022         assert(d->d_size == s->sz);
3023         if (!get_ent_count(s, &len))
3024                 return;
3025         for (i = 0; i < len; i++) {
3026                 if (gelf_getrel(d, i, &r) != &r) {
3027                         warnx("gelf_getrel failed: %s", elf_errmsg(-1));
3028                         continue;
3029                 }
3030                 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
3031                 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
3032                 if (re->ec == ELFCLASS32) {
3033                         r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
3034                             ELF64_R_TYPE(r.r_info));
3035                         printf("%8.8jx %8.8jx %-19.19s %8.8jx %s\n", REL_CT32);
3036                 } else {
3037                         type = ELF64_R_TYPE(r.r_info);
3038                         if (re->ehdr.e_machine == EM_MIPS) {
3039                                 type2 = (type >> 8) & 0xFF;
3040                                 type3 = (type >> 16) & 0xFF;
3041                                 type = type & 0xFF;
3042                         } else {
3043                                 type2 = type3 = 0;
3044                         }
3045                         if (re->options & RE_WW)
3046                                 printf("%16.16jx %16.16jx %-24.24s"
3047                                     " %16.16jx %s\n", REL_CT64);
3048                         else
3049                                 printf("%12.12jx %12.12jx %-19.19s"
3050                                     " %16.16jx %s\n", REL_CT64);
3051                         if (re->ehdr.e_machine == EM_MIPS) {
3052                                 if (re->options & RE_WW) {
3053                                         printf("%32s: %s\n", "Type2",
3054                                             elftc_reloc_type_str(EM_MIPS,
3055                                             type2));
3056                                         printf("%32s: %s\n", "Type3",
3057                                             elftc_reloc_type_str(EM_MIPS,
3058                                             type3));
3059                                 } else {
3060                                         printf("%24s: %s\n", "Type2",
3061                                             elftc_reloc_type_str(EM_MIPS,
3062                                             type2));
3063                                         printf("%24s: %s\n", "Type3",
3064                                             elftc_reloc_type_str(EM_MIPS,
3065                                             type3));
3066                                 }
3067                         }
3068                 }
3069         }
3070
3071 #undef  REL_HDR
3072 #undef  REL_CT
3073 }
3074
3075 static void
3076 dump_rela(struct readelf *re, struct section *s, Elf_Data *d)
3077 {
3078         GElf_Rela r;
3079         const char *symname;
3080         uint64_t symval;
3081         int i, len;
3082         uint32_t type;
3083         uint8_t type2, type3;
3084
3085         if (s->link >= re->shnum)
3086                 return;
3087
3088 #define RELA_HDR "r_offset", "r_info", "r_type", "st_value", \
3089                 "st_name + r_addend"
3090 #define RELA_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,       \
3091                 elftc_reloc_type_str(re->ehdr.e_machine,            \
3092                 ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
3093 #define RELA_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,       \
3094                 elftc_reloc_type_str(re->ehdr.e_machine, type),     \
3095                 (uintmax_t)symval, symname
3096
3097         printf("\nRelocation section with addend (%s):\n", s->name);
3098         if (re->ec == ELFCLASS32)
3099                 printf("%-8s %-8s %-19s %-8s %s\n", RELA_HDR);
3100         else {
3101                 if (re->options & RE_WW)
3102                         printf("%-16s %-16s %-24s %-16s %s\n", RELA_HDR);
3103                 else
3104                         printf("%-12s %-12s %-19s %-16s %s\n", RELA_HDR);
3105         }
3106         assert(d->d_size == s->sz);
3107         if (!get_ent_count(s, &len))
3108                 return;
3109         for (i = 0; i < len; i++) {
3110                 if (gelf_getrela(d, i, &r) != &r) {
3111                         warnx("gelf_getrel failed: %s", elf_errmsg(-1));
3112                         continue;
3113                 }
3114                 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
3115                 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
3116                 if (re->ec == ELFCLASS32) {
3117                         r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
3118                             ELF64_R_TYPE(r.r_info));
3119                         printf("%8.8jx %8.8jx %-19.19s %8.8jx %s", RELA_CT32);
3120                         printf(" + %x\n", (uint32_t) r.r_addend);
3121                 } else {
3122                         type = ELF64_R_TYPE(r.r_info);
3123                         if (re->ehdr.e_machine == EM_MIPS) {
3124                                 type2 = (type >> 8) & 0xFF;
3125                                 type3 = (type >> 16) & 0xFF;
3126                                 type = type & 0xFF;
3127                         } else {
3128                                 type2 = type3 = 0;
3129                         }
3130                         if (re->options & RE_WW)
3131                                 printf("%16.16jx %16.16jx %-24.24s"
3132                                     " %16.16jx %s", RELA_CT64);
3133                         else
3134                                 printf("%12.12jx %12.12jx %-19.19s"
3135                                     " %16.16jx %s", RELA_CT64);
3136                         printf(" + %jx\n", (uintmax_t) r.r_addend);
3137                         if (re->ehdr.e_machine == EM_MIPS) {
3138                                 if (re->options & RE_WW) {
3139                                         printf("%32s: %s\n", "Type2",
3140                                             elftc_reloc_type_str(EM_MIPS,
3141                                             type2));
3142                                         printf("%32s: %s\n", "Type3",
3143                                             elftc_reloc_type_str(EM_MIPS,
3144                                             type3));
3145                                 } else {
3146                                         printf("%24s: %s\n", "Type2",
3147                                             elftc_reloc_type_str(EM_MIPS,
3148                                             type2));
3149                                         printf("%24s: %s\n", "Type3",
3150                                             elftc_reloc_type_str(EM_MIPS,
3151                                             type3));
3152                                 }
3153                         }
3154                 }
3155         }
3156
3157 #undef  RELA_HDR
3158 #undef  RELA_CT
3159 }
3160
3161 static void
3162 dump_reloc(struct readelf *re)
3163 {
3164         struct section *s;
3165         Elf_Data *d;
3166         int i, elferr;
3167
3168         for (i = 0; (size_t)i < re->shnum; i++) {
3169                 s = &re->sl[i];
3170                 if (s->type == SHT_REL || s->type == SHT_RELA) {
3171                         (void) elf_errno();
3172                         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3173                                 elferr = elf_errno();
3174                                 if (elferr != 0)
3175                                         warnx("elf_getdata failed: %s",
3176                                             elf_errmsg(elferr));
3177                                 continue;
3178                         }
3179                         if (s->type == SHT_REL)
3180                                 dump_rel(re, s, d);
3181                         else
3182                                 dump_rela(re, s, d);
3183                 }
3184         }
3185 }
3186
3187 static void
3188 dump_symtab(struct readelf *re, int i)
3189 {
3190         struct section *s;
3191         Elf_Data *d;
3192         GElf_Sym sym;
3193         const char *name;
3194         uint32_t stab;
3195         int elferr, j, len;
3196         uint16_t vs;
3197
3198         s = &re->sl[i];
3199         if (s->link >= re->shnum)
3200                 return;
3201         stab = s->link;
3202         (void) elf_errno();
3203         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3204                 elferr = elf_errno();
3205                 if (elferr != 0)
3206                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3207                 return;
3208         }
3209         if (d->d_size <= 0)
3210                 return;
3211         if (!get_ent_count(s, &len))
3212                 return;
3213         printf("Symbol table (%s)", s->name);
3214         printf(" contains %d entries:\n", len);
3215         printf("%7s%9s%14s%5s%8s%6s%9s%5s\n", "Num:", "Value", "Size", "Type",
3216             "Bind", "Vis", "Ndx", "Name");
3217
3218         for (j = 0; j < len; j++) {
3219                 if (gelf_getsym(d, j, &sym) != &sym) {
3220                         warnx("gelf_getsym failed: %s", elf_errmsg(-1));
3221                         continue;
3222                 }
3223                 printf("%6d:", j);
3224                 printf(" %16.16jx", (uintmax_t) sym.st_value);
3225                 printf(" %5ju", (uintmax_t) sym.st_size);
3226                 printf(" %-7s", st_type(re->ehdr.e_machine,
3227                     re->ehdr.e_ident[EI_OSABI], GELF_ST_TYPE(sym.st_info)));
3228                 printf(" %-6s", st_bind(GELF_ST_BIND(sym.st_info)));
3229                 printf(" %-8s", st_vis(GELF_ST_VISIBILITY(sym.st_other)));
3230                 printf(" %3s", st_shndx(sym.st_shndx));
3231                 if ((name = elf_strptr(re->elf, stab, sym.st_name)) != NULL)
3232                         printf(" %s", name);
3233                 /* Append symbol version string for SHT_DYNSYM symbol table. */
3234                 if (s->type == SHT_DYNSYM && re->ver != NULL &&
3235                     re->vs != NULL && re->vs[j] > 1) {
3236                         vs = re->vs[j] & VERSYM_VERSION;
3237                         if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3238                                 warnx("invalid versym version index %u", vs);
3239                                 break;
3240                         }
3241                         if (re->vs[j] & VERSYM_HIDDEN || re->ver[vs].type == 0)
3242                                 printf("@%s (%d)", re->ver[vs].name, vs);
3243                         else
3244                                 printf("@@%s (%d)", re->ver[vs].name, vs);
3245                 }
3246                 putchar('\n');
3247         }
3248
3249 }
3250
3251 static void
3252 dump_symtabs(struct readelf *re)
3253 {
3254         GElf_Dyn dyn;
3255         Elf_Data *d;
3256         struct section *s;
3257         uint64_t dyn_off;
3258         int elferr, i, len;
3259
3260         /*
3261          * If -D is specified, only dump the symbol table specified by
3262          * the DT_SYMTAB entry in the .dynamic section.
3263          */
3264         dyn_off = 0;
3265         if (re->options & RE_DD) {
3266                 s = NULL;
3267                 for (i = 0; (size_t)i < re->shnum; i++)
3268                         if (re->sl[i].type == SHT_DYNAMIC) {
3269                                 s = &re->sl[i];
3270                                 break;
3271                         }
3272                 if (s == NULL)
3273                         return;
3274                 (void) elf_errno();
3275                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3276                         elferr = elf_errno();
3277                         if (elferr != 0)
3278                                 warnx("elf_getdata failed: %s", elf_errmsg(-1));
3279                         return;
3280                 }
3281                 if (d->d_size <= 0)
3282                         return;
3283                 if (!get_ent_count(s, &len))
3284                         return;
3285
3286                 for (i = 0; i < len; i++) {
3287                         if (gelf_getdyn(d, i, &dyn) != &dyn) {
3288                                 warnx("gelf_getdyn failed: %s", elf_errmsg(-1));
3289                                 continue;
3290                         }
3291                         if (dyn.d_tag == DT_SYMTAB) {
3292                                 dyn_off = dyn.d_un.d_val;
3293                                 break;
3294                         }
3295                 }
3296         }
3297
3298         /* Find and dump symbol tables. */
3299         for (i = 0; (size_t)i < re->shnum; i++) {
3300                 s = &re->sl[i];
3301                 if (s->type == SHT_SYMTAB || s->type == SHT_DYNSYM) {
3302                         if (re->options & RE_DD) {
3303                                 if (dyn_off == s->addr) {
3304                                         dump_symtab(re, i);
3305                                         break;
3306                                 }
3307                         } else
3308                                 dump_symtab(re, i);
3309                 }
3310         }
3311 }
3312
3313 static void
3314 dump_svr4_hash(struct section *s)
3315 {
3316         Elf_Data        *d;
3317         uint32_t        *buf;
3318         uint32_t         nbucket, nchain;
3319         uint32_t        *bucket, *chain;
3320         uint32_t        *bl, *c, maxl, total;
3321         int              elferr, i, j;
3322
3323         /* Read and parse the content of .hash section. */
3324         (void) elf_errno();
3325         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3326                 elferr = elf_errno();
3327                 if (elferr != 0)
3328                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3329                 return;
3330         }
3331         if (d->d_size < 2 * sizeof(uint32_t)) {
3332                 warnx(".hash section too small");
3333                 return;
3334         }
3335         buf = d->d_buf;
3336         nbucket = buf[0];
3337         nchain = buf[1];
3338         if (nbucket <= 0 || nchain <= 0) {
3339                 warnx("Malformed .hash section");
3340                 return;
3341         }
3342         if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3343                 warnx("Malformed .hash section");
3344                 return;
3345         }
3346         bucket = &buf[2];
3347         chain = &buf[2 + nbucket];
3348
3349         maxl = 0;
3350         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3351                 errx(EXIT_FAILURE, "calloc failed");
3352         for (i = 0; (uint32_t)i < nbucket; i++)
3353                 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3354                         if (++bl[i] > maxl)
3355                                 maxl = bl[i];
3356         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3357                 errx(EXIT_FAILURE, "calloc failed");
3358         for (i = 0; (uint32_t)i < nbucket; i++)
3359                 c[bl[i]]++;
3360         printf("\nHistogram for bucket list length (total of %u buckets):\n",
3361             nbucket);
3362         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3363         total = 0;
3364         for (i = 0; (uint32_t)i <= maxl; i++) {
3365                 total += c[i] * i;
3366                 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3367                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3368         }
3369         free(c);
3370         free(bl);
3371 }
3372
3373 static void
3374 dump_svr4_hash64(struct readelf *re, struct section *s)
3375 {
3376         Elf_Data        *d, dst;
3377         uint64_t        *buf;
3378         uint64_t         nbucket, nchain;
3379         uint64_t        *bucket, *chain;
3380         uint64_t        *bl, *c, maxl, total;
3381         int              elferr, i, j;
3382
3383         /*
3384          * ALPHA uses 64-bit hash entries. Since libelf assumes that
3385          * .hash section contains only 32-bit entry, an explicit
3386          * gelf_xlatetom is needed here.
3387          */
3388         (void) elf_errno();
3389         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
3390                 elferr = elf_errno();
3391                 if (elferr != 0)
3392                         warnx("elf_rawdata failed: %s",
3393                             elf_errmsg(elferr));
3394                 return;
3395         }
3396         d->d_type = ELF_T_XWORD;
3397         memcpy(&dst, d, sizeof(Elf_Data));
3398         if (gelf_xlatetom(re->elf, &dst, d,
3399                 re->ehdr.e_ident[EI_DATA]) != &dst) {
3400                 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
3401                 return;
3402         }
3403         if (dst.d_size < 2 * sizeof(uint64_t)) {
3404                 warnx(".hash section too small");
3405                 return;
3406         }
3407         buf = dst.d_buf;
3408         nbucket = buf[0];
3409         nchain = buf[1];
3410         if (nbucket <= 0 || nchain <= 0) {
3411                 warnx("Malformed .hash section");
3412                 return;
3413         }
3414         if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3415                 warnx("Malformed .hash section");
3416                 return;
3417         }
3418         bucket = &buf[2];
3419         chain = &buf[2 + nbucket];
3420
3421         maxl = 0;
3422         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3423                 errx(EXIT_FAILURE, "calloc failed");
3424         for (i = 0; (uint32_t)i < nbucket; i++)
3425                 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3426                         if (++bl[i] > maxl)
3427                                 maxl = bl[i];
3428         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3429                 errx(EXIT_FAILURE, "calloc failed");
3430         for (i = 0; (uint64_t)i < nbucket; i++)
3431                 c[bl[i]]++;
3432         printf("Histogram for bucket list length (total of %ju buckets):\n",
3433             (uintmax_t)nbucket);
3434         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3435         total = 0;
3436         for (i = 0; (uint64_t)i <= maxl; i++) {
3437                 total += c[i] * i;
3438                 printf("%7u\t%-10ju\t(%5.1f%%)\t%5.1f%%\n", i, (uintmax_t)c[i],
3439                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3440         }
3441         free(c);
3442         free(bl);
3443 }
3444
3445 static void
3446 dump_gnu_hash(struct readelf *re, struct section *s)
3447 {
3448         struct section  *ds;
3449         Elf_Data        *d;
3450         uint32_t        *buf;
3451         uint32_t        *bucket, *chain;
3452         uint32_t         nbucket, nchain, symndx, maskwords;
3453         uint32_t        *bl, *c, maxl, total;
3454         int              elferr, dynsymcount, i, j;
3455
3456         (void) elf_errno();
3457         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3458                 elferr = elf_errno();
3459                 if (elferr != 0)
3460                         warnx("elf_getdata failed: %s",
3461                             elf_errmsg(elferr));
3462                 return;
3463         }
3464         if (d->d_size < 4 * sizeof(uint32_t)) {
3465                 warnx(".gnu.hash section too small");
3466                 return;
3467         }
3468         buf = d->d_buf;
3469         nbucket = buf[0];
3470         symndx = buf[1];
3471         maskwords = buf[2];
3472         buf += 4;
3473         if (s->link >= re->shnum)
3474                 return;
3475         ds = &re->sl[s->link];
3476         if (!get_ent_count(ds, &dynsymcount))
3477                 return;
3478         if (symndx >= (uint32_t)dynsymcount) {
3479                 warnx("Malformed .gnu.hash section (symndx out of range)");
3480                 return;
3481         }
3482         nchain = dynsymcount - symndx;
3483         if (d->d_size != 4 * sizeof(uint32_t) + maskwords *
3484             (re->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) +
3485             (nbucket + nchain) * sizeof(uint32_t)) {
3486                 warnx("Malformed .gnu.hash section");
3487                 return;
3488         }
3489         bucket = buf + (re->ec == ELFCLASS32 ? maskwords : maskwords * 2);
3490         chain = bucket + nbucket;
3491
3492         maxl = 0;
3493         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3494                 errx(EXIT_FAILURE, "calloc failed");
3495         for (i = 0; (uint32_t)i < nbucket; i++)
3496                 for (j = bucket[i]; j > 0 && (uint32_t)j - symndx < nchain;
3497                      j++) {
3498                         if (++bl[i] > maxl)
3499                                 maxl = bl[i];
3500                         if (chain[j - symndx] & 1)
3501                                 break;
3502                 }
3503         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3504                 errx(EXIT_FAILURE, "calloc failed");
3505         for (i = 0; (uint32_t)i < nbucket; i++)
3506                 c[bl[i]]++;
3507         printf("Histogram for bucket list length (total of %u buckets):\n",
3508             nbucket);
3509         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3510         total = 0;
3511         for (i = 0; (uint32_t)i <= maxl; i++) {
3512                 total += c[i] * i;
3513                 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3514                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3515         }
3516         free(c);
3517         free(bl);
3518 }
3519
3520 static void
3521 dump_hash(struct readelf *re)
3522 {
3523         struct section  *s;
3524         int              i;
3525
3526         for (i = 0; (size_t) i < re->shnum; i++) {
3527                 s = &re->sl[i];
3528                 if (s->type == SHT_HASH || s->type == SHT_GNU_HASH) {
3529                         if (s->type == SHT_GNU_HASH)
3530                                 dump_gnu_hash(re, s);
3531                         else if (re->ehdr.e_machine == EM_ALPHA &&
3532                             s->entsize == 8)
3533                                 dump_svr4_hash64(re, s);
3534                         else
3535                                 dump_svr4_hash(s);
3536                 }
3537         }
3538 }
3539
3540 static void
3541 dump_notes(struct readelf *re)
3542 {
3543         struct section *s;
3544         const char *rawfile;
3545         GElf_Phdr phdr;
3546         Elf_Data *d;
3547         size_t filesize, phnum;
3548         int i, elferr;
3549
3550         if (re->ehdr.e_type == ET_CORE) {
3551                 /*
3552                  * Search program headers in the core file for
3553                  * PT_NOTE entry.
3554                  */
3555                 if (elf_getphnum(re->elf, &phnum) == 0) {
3556                         warnx("elf_getphnum failed: %s", elf_errmsg(-1));
3557                         return;
3558                 }
3559                 if (phnum == 0)
3560                         return;
3561                 if ((rawfile = elf_rawfile(re->elf, &filesize)) == NULL) {
3562                         warnx("elf_rawfile failed: %s", elf_errmsg(-1));
3563                         return;
3564                 }
3565                 for (i = 0; (size_t) i < phnum; i++) {
3566                         if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
3567                                 warnx("gelf_getphdr failed: %s",
3568                                     elf_errmsg(-1));
3569                                 continue;
3570                         }
3571                         if (phdr.p_type == PT_NOTE) {
3572                                 if (phdr.p_offset >= filesize ||
3573                                     phdr.p_filesz > filesize - phdr.p_offset) {
3574                                         warnx("invalid PHDR offset");
3575                                         continue;
3576                                 }
3577                                 dump_notes_content(re, rawfile + phdr.p_offset,
3578                                     phdr.p_filesz, phdr.p_offset);
3579                         }
3580                 }
3581
3582         } else {
3583                 /*
3584                  * For objects other than core files, Search for
3585                  * SHT_NOTE sections.
3586                  */
3587                 for (i = 0; (size_t) i < re->shnum; i++) {
3588                         s = &re->sl[i];
3589                         if (s->type == SHT_NOTE) {
3590                                 (void) elf_errno();
3591                                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3592                                         elferr = elf_errno();
3593                                         if (elferr != 0)
3594                                                 warnx("elf_getdata failed: %s",
3595                                                     elf_errmsg(elferr));
3596                                         continue;
3597                                 }
3598                                 dump_notes_content(re, d->d_buf, d->d_size,
3599                                     s->off);
3600                         }
3601                 }
3602         }
3603 }
3604
3605 static struct flag_desc note_feature_ctl_flags[] = {
3606         { NT_FREEBSD_FCTL_ASLR_DISABLE,         "ASLR_DISABLE" },
3607         { 0, NULL }
3608 };
3609
3610 static void
3611 dump_notes_data(const char *name, uint32_t type, const char *buf, size_t sz)
3612 {
3613         size_t i;
3614         const uint32_t *ubuf;
3615
3616         /* Note data is at least 4-byte aligned. */
3617         if (((uintptr_t)buf & 3) != 0) {
3618                 warnx("bad note data alignment");
3619                 goto unknown;
3620         }
3621         ubuf = (const uint32_t *)(const void *)buf;
3622
3623         if (strcmp(name, "FreeBSD") == 0) {
3624                 switch (type) {
3625                 case NT_FREEBSD_ABI_TAG:
3626                         if (sz != 4)
3627                                 goto unknown;
3628                         printf("   ABI tag: %u\n", ubuf[0]);
3629                         return;
3630                 /* NT_FREEBSD_NOINIT_TAG carries no data, treat as unknown. */
3631                 case NT_FREEBSD_ARCH_TAG:
3632                         if (sz != 4)
3633                                 goto unknown;
3634                         printf("   Arch tag: %x\n", ubuf[0]);
3635                         return;
3636                 case NT_FREEBSD_FEATURE_CTL:
3637                         if (sz != 4)
3638                                 goto unknown;
3639                         printf("   Features:");
3640                         dump_flags(note_feature_ctl_flags, ubuf[0]);
3641                         return;
3642                 }
3643         }
3644 unknown:
3645         printf("   description data:");
3646         for (i = 0; i < sz; i++)
3647                 printf(" %02x", (unsigned char)buf[i]);
3648         printf("\n");
3649 }
3650
3651 static void
3652 dump_notes_content(struct readelf *re, const char *buf, size_t sz, off_t off)
3653 {
3654         Elf_Note *note;
3655         const char *end, *name;
3656
3657         printf("\nNotes at offset %#010jx with length %#010jx:\n",
3658             (uintmax_t) off, (uintmax_t) sz);
3659         printf("  %-13s %-15s %s\n", "Owner", "Data size", "Description");
3660         end = buf + sz;
3661         while (buf < end) {
3662                 if (buf + sizeof(*note) > end) {
3663                         warnx("invalid note header");
3664                         return;
3665                 }
3666                 note = (Elf_Note *)(uintptr_t) buf;
3667                 buf += sizeof(Elf_Note);
3668                 name = buf;
3669                 buf += roundup2(note->n_namesz, 4);
3670                 /*
3671                  * The name field is required to be nul-terminated, and
3672                  * n_namesz includes the terminating nul in observed
3673                  * implementations (contrary to the ELF-64 spec). A special
3674                  * case is needed for cores generated by some older Linux
3675                  * versions, which write a note named "CORE" without a nul
3676                  * terminator and n_namesz = 4.
3677                  */
3678                 if (note->n_namesz == 0)
3679                         name = "";
3680                 else if (note->n_namesz == 4 && strncmp(name, "CORE", 4) == 0)
3681                         name = "CORE";
3682                 else if (strnlen(name, note->n_namesz) >= note->n_namesz)
3683                         name = "<invalid>";
3684                 printf("  %-13s %#010jx", name, (uintmax_t) note->n_descsz);
3685                 printf("      %s\n", note_type(name, re->ehdr.e_type,
3686                     note->n_type));
3687                 dump_notes_data(name, note->n_type, buf, note->n_descsz);
3688                 buf += roundup2(note->n_descsz, 4);
3689         }
3690 }
3691
3692 /*
3693  * Symbol versioning sections are the same for 32bit and 64bit
3694  * ELF objects.
3695  */
3696 #define Elf_Verdef      Elf32_Verdef
3697 #define Elf_Verdaux     Elf32_Verdaux
3698 #define Elf_Verneed     Elf32_Verneed
3699 #define Elf_Vernaux     Elf32_Vernaux
3700
3701 #define SAVE_VERSION_NAME(x, n, t)                                      \
3702         do {                                                            \
3703                 while (x >= re->ver_sz) {                               \
3704                         nv = realloc(re->ver,                           \
3705                             sizeof(*re->ver) * re->ver_sz * 2);         \
3706                         if (nv == NULL) {                               \
3707                                 warn("realloc failed");                 \
3708                                 free(re->ver);                          \
3709                                 return;                                 \
3710                         }                                               \
3711                         re->ver = nv;                                   \
3712                         for (i = re->ver_sz; i < re->ver_sz * 2; i++) { \
3713                                 re->ver[i].name = NULL;                 \
3714                                 re->ver[i].type = 0;                    \
3715                         }                                               \
3716                         re->ver_sz *= 2;                                \
3717                 }                                                       \
3718                 if (x > 1) {                                            \
3719                         re->ver[x].name = n;                            \
3720                         re->ver[x].type = t;                            \
3721                 }                                                       \
3722         } while (0)
3723
3724
3725 static void
3726 dump_verdef(struct readelf *re, int dump)
3727 {
3728         struct section *s;
3729         struct symver *nv;
3730         Elf_Data *d;
3731         Elf_Verdef *vd;
3732         Elf_Verdaux *vda;
3733         uint8_t *buf, *end, *buf2;
3734         const char *name;
3735         int elferr, i, j;
3736
3737         if ((s = re->vd_s) == NULL)
3738                 return;
3739         if (s->link >= re->shnum)
3740                 return;
3741
3742         if (re->ver == NULL) {
3743                 re->ver_sz = 16;
3744                 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3745                     NULL) {
3746                         warn("calloc failed");
3747                         return;
3748                 }
3749                 re->ver[0].name = "*local*";
3750                 re->ver[1].name = "*global*";
3751         }
3752
3753         if (dump)
3754                 printf("\nVersion definition section (%s):\n", s->name);
3755         (void) elf_errno();
3756         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3757                 elferr = elf_errno();
3758                 if (elferr != 0)
3759                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3760                 return;
3761         }
3762         if (d->d_size == 0)
3763                 return;
3764
3765         buf = d->d_buf;
3766         end = buf + d->d_size;
3767         while (buf + sizeof(Elf_Verdef) <= end) {
3768                 vd = (Elf_Verdef *) (uintptr_t) buf;
3769                 if (dump) {
3770                         printf("  0x%4.4lx", (unsigned long)
3771                             (buf - (uint8_t *)d->d_buf));
3772                         printf(" vd_version: %u vd_flags: %d"
3773                             " vd_ndx: %u vd_cnt: %u", vd->vd_version,
3774                             vd->vd_flags, vd->vd_ndx, vd->vd_cnt);
3775                 }
3776                 buf2 = buf + vd->vd_aux;
3777                 j = 0;
3778                 while (buf2 + sizeof(Elf_Verdaux) <= end && j < vd->vd_cnt) {
3779                         vda = (Elf_Verdaux *) (uintptr_t) buf2;
3780                         name = get_string(re, s->link, vda->vda_name);
3781                         if (j == 0) {
3782                                 if (dump)
3783                                         printf(" vda_name: %s\n", name);
3784                                 SAVE_VERSION_NAME((int)vd->vd_ndx, name, 1);
3785                         } else if (dump)
3786                                 printf("  0x%4.4lx parent: %s\n",
3787                                     (unsigned long) (buf2 -
3788                                     (uint8_t *)d->d_buf), name);
3789                         if (vda->vda_next == 0)
3790                                 break;
3791                         buf2 += vda->vda_next;
3792                         j++;
3793                 }
3794                 if (vd->vd_next == 0)
3795                         break;
3796                 buf += vd->vd_next;
3797         }
3798 }
3799
3800 static void
3801 dump_verneed(struct readelf *re, int dump)
3802 {
3803         struct section *s;
3804         struct symver *nv;
3805         Elf_Data *d;
3806         Elf_Verneed *vn;
3807         Elf_Vernaux *vna;
3808         uint8_t *buf, *end, *buf2;
3809         const char *name;
3810         int elferr, i, j;
3811
3812         if ((s = re->vn_s) == NULL)
3813                 return;
3814         if (s->link >= re->shnum)
3815                 return;
3816
3817         if (re->ver == NULL) {
3818                 re->ver_sz = 16;
3819                 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3820                     NULL) {
3821                         warn("calloc failed");
3822                         return;
3823                 }
3824                 re->ver[0].name = "*local*";
3825                 re->ver[1].name = "*global*";
3826         }
3827
3828         if (dump)
3829                 printf("\nVersion needed section (%s):\n", s->name);
3830         (void) elf_errno();
3831         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3832                 elferr = elf_errno();
3833                 if (elferr != 0)
3834                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3835                 return;
3836         }
3837         if (d->d_size == 0)
3838                 return;
3839
3840         buf = d->d_buf;
3841         end = buf + d->d_size;
3842         while (buf + sizeof(Elf_Verneed) <= end) {
3843                 vn = (Elf_Verneed *) (uintptr_t) buf;
3844                 if (dump) {
3845                         printf("  0x%4.4lx", (unsigned long)
3846                             (buf - (uint8_t *)d->d_buf));
3847                         printf(" vn_version: %u vn_file: %s vn_cnt: %u\n",
3848                             vn->vn_version,
3849                             get_string(re, s->link, vn->vn_file),
3850                             vn->vn_cnt);
3851                 }
3852                 buf2 = buf + vn->vn_aux;
3853                 j = 0;
3854                 while (buf2 + sizeof(Elf_Vernaux) <= end && j < vn->vn_cnt) {
3855                         vna = (Elf32_Vernaux *) (uintptr_t) buf2;
3856                         if (dump)
3857                                 printf("  0x%4.4lx", (unsigned long)
3858                                     (buf2 - (uint8_t *)d->d_buf));
3859                         name = get_string(re, s->link, vna->vna_name);
3860                         if (dump)
3861                                 printf("   vna_name: %s vna_flags: %u"
3862                                     " vna_other: %u\n", name,
3863                                     vna->vna_flags, vna->vna_other);
3864                         SAVE_VERSION_NAME((int)vna->vna_other, name, 0);
3865                         if (vna->vna_next == 0)
3866                                 break;
3867                         buf2 += vna->vna_next;
3868                         j++;
3869                 }
3870                 if (vn->vn_next == 0)
3871                         break;
3872                 buf += vn->vn_next;
3873         }
3874 }
3875
3876 static void
3877 dump_versym(struct readelf *re)
3878 {
3879         int i;
3880         uint16_t vs;
3881
3882         if (re->vs_s == NULL || re->ver == NULL || re->vs == NULL)
3883                 return;
3884         printf("\nVersion symbol section (%s):\n", re->vs_s->name);
3885         for (i = 0; i < re->vs_sz; i++) {
3886                 if ((i & 3) == 0) {
3887                         if (i > 0)
3888                                 putchar('\n');
3889                         printf("  %03x:", i);
3890                 }
3891                 vs = re->vs[i] & VERSYM_VERSION;
3892                 if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3893                         warnx("invalid versym version index %u", re->vs[i]);
3894                         break;
3895                 }
3896                 if (re->vs[i] & VERSYM_HIDDEN)
3897                         printf(" %3xh %-12s ", vs,
3898                             re->ver[re->vs[i] & VERSYM_VERSION].name);
3899                 else
3900                         printf(" %3x %-12s ", vs, re->ver[re->vs[i]].name);
3901         }
3902         putchar('\n');
3903 }
3904
3905 static void
3906 dump_ver(struct readelf *re)
3907 {
3908
3909         if (re->vs_s && re->ver && re->vs)
3910                 dump_versym(re);
3911         if (re->vd_s)
3912                 dump_verdef(re, 1);
3913         if (re->vn_s)
3914                 dump_verneed(re, 1);
3915 }
3916
3917 static void
3918 search_ver(struct readelf *re)
3919 {
3920         struct section *s;
3921         Elf_Data *d;
3922         int elferr, i;
3923
3924         for (i = 0; (size_t) i < re->shnum; i++) {
3925                 s = &re->sl[i];
3926                 if (s->type == SHT_SUNW_versym)
3927                         re->vs_s = s;
3928                 if (s->type == SHT_SUNW_verneed)
3929                         re->vn_s = s;
3930                 if (s->type == SHT_SUNW_verdef)
3931                         re->vd_s = s;
3932         }
3933         if (re->vd_s)
3934                 dump_verdef(re, 0);
3935         if (re->vn_s)
3936                 dump_verneed(re, 0);
3937         if (re->vs_s && re->ver != NULL) {
3938                 (void) elf_errno();
3939                 if ((d = elf_getdata(re->vs_s->scn, NULL)) == NULL) {
3940                         elferr = elf_errno();
3941                         if (elferr != 0)
3942                                 warnx("elf_getdata failed: %s",
3943                                     elf_errmsg(elferr));
3944                         return;
3945                 }
3946                 if (d->d_size == 0)
3947                         return;
3948                 re->vs = d->d_buf;
3949                 re->vs_sz = d->d_size / sizeof(Elf32_Half);
3950         }
3951 }
3952
3953 #undef  Elf_Verdef
3954 #undef  Elf_Verdaux
3955 #undef  Elf_Verneed
3956 #undef  Elf_Vernaux
3957 #undef  SAVE_VERSION_NAME
3958
3959 /*
3960  * Elf32_Lib and Elf64_Lib are identical.
3961  */
3962 #define Elf_Lib         Elf32_Lib
3963
3964 static void
3965 dump_liblist(struct readelf *re)
3966 {
3967         struct section *s;
3968         struct tm *t;
3969         time_t ti;
3970         char tbuf[20];
3971         Elf_Data *d;
3972         Elf_Lib *lib;
3973         int i, j, k, elferr, first, len;
3974
3975         for (i = 0; (size_t) i < re->shnum; i++) {
3976                 s = &re->sl[i];
3977                 if (s->type != SHT_GNU_LIBLIST)
3978                         continue;
3979                 if (s->link >= re->shnum)
3980                         continue;
3981                 (void) elf_errno();
3982                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3983                         elferr = elf_errno();
3984                         if (elferr != 0)
3985                                 warnx("elf_getdata failed: %s",
3986                                     elf_errmsg(elferr));
3987                         continue;
3988                 }
3989                 if (d->d_size <= 0)
3990                         continue;
3991                 lib = d->d_buf;
3992                 if (!get_ent_count(s, &len))
3993                         continue;
3994                 printf("\nLibrary list section '%s' ", s->name);
3995                 printf("contains %d entries:\n", len);
3996                 printf("%12s%24s%18s%10s%6s\n", "Library", "Time Stamp",
3997                     "Checksum", "Version", "Flags");
3998                 for (j = 0; (uint64_t) j < s->sz / s->entsize; j++) {
3999                         printf("%3d: ", j);
4000                         printf("%-20.20s ",
4001                             get_string(re, s->link, lib->l_name));
4002                         ti = lib->l_time_stamp;
4003                         t = gmtime(&ti);
4004                         snprintf(tbuf, sizeof(tbuf), "%04d-%02d-%02dT%02d:%02d"
4005                             ":%2d", t->tm_year + 1900, t->tm_mon + 1,
4006                             t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
4007                         printf("%-19.19s ", tbuf);
4008                         printf("0x%08x ", lib->l_checksum);
4009                         printf("%-7d %#x", lib->l_version, lib->l_flags);
4010                         if (lib->l_flags != 0) {
4011                                 first = 1;
4012                                 putchar('(');
4013                                 for (k = 0; l_flag[k].name != NULL; k++) {
4014                                         if ((l_flag[k].value & lib->l_flags) ==
4015                                             0)
4016                                                 continue;
4017                                         if (!first)
4018                                                 putchar(',');
4019                                         else
4020                                                 first = 0;
4021                                         printf("%s", l_flag[k].name);
4022                                 }
4023                                 putchar(')');
4024                         }
4025                         putchar('\n');
4026                         lib++;
4027                 }
4028         }
4029 }
4030
4031 #undef Elf_Lib
4032
4033 static void
4034 dump_section_groups(struct readelf *re)
4035 {
4036         struct section *s;
4037         const char *symname;
4038         Elf_Data *d;
4039         uint32_t *w;
4040         int i, j, elferr;
4041         size_t n;
4042
4043         for (i = 0; (size_t) i < re->shnum; i++) {
4044                 s = &re->sl[i];
4045                 if (s->type != SHT_GROUP)
4046                         continue;
4047                 if (s->link >= re->shnum)
4048                         continue;
4049                 (void) elf_errno();
4050                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4051                         elferr = elf_errno();
4052                         if (elferr != 0)
4053                                 warnx("elf_getdata failed: %s",
4054                                     elf_errmsg(elferr));
4055                         continue;
4056                 }
4057                 if (d->d_size <= 0)
4058                         continue;
4059
4060                 w = d->d_buf;
4061
4062                 /* We only support COMDAT section. */
4063 #ifndef GRP_COMDAT
4064 #define GRP_COMDAT 0x1
4065 #endif
4066                 if ((*w++ & GRP_COMDAT) == 0)
4067                         return;
4068
4069                 if (s->entsize == 0)
4070                         s->entsize = 4;
4071
4072                 symname = get_symbol_name(re, s->link, s->info);
4073                 n = s->sz / s->entsize;
4074                 if (n-- < 1)
4075                         return;
4076
4077                 printf("\nCOMDAT group section [%5d] `%s' [%s] contains %ju"
4078                     " sections:\n", i, s->name, symname, (uintmax_t)n);
4079                 printf("   %-10.10s %s\n", "[Index]", "Name");
4080                 for (j = 0; (size_t) j < n; j++, w++) {
4081                         if (*w >= re->shnum) {
4082                                 warnx("invalid section index: %u", *w);
4083                                 continue;
4084                         }
4085                         printf("   [%5u]   %s\n", *w, re->sl[*w].name);
4086                 }
4087         }
4088 }
4089
4090 static uint8_t *
4091 dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe)
4092 {
4093         uint64_t val;
4094
4095         /*
4096          * According to ARM EABI: For tags > 32, even numbered tags have
4097          * a ULEB128 param and odd numbered ones have NUL-terminated
4098          * string param. This rule probably also applies for tags <= 32
4099          * if the object arch is not ARM.
4100          */
4101
4102         printf("  Tag_unknown_%ju: ", (uintmax_t) tag);
4103
4104         if (tag & 1) {
4105                 printf("%s\n", (char *) p);
4106                 p += strlen((char *) p) + 1;
4107         } else {
4108                 val = _decode_uleb128(&p, pe);
4109                 printf("%ju\n", (uintmax_t) val);
4110         }
4111
4112         return (p);
4113 }
4114
4115 static uint8_t *
4116 dump_compatibility_tag(uint8_t *p, uint8_t *pe)
4117 {
4118         uint64_t val;
4119
4120         val = _decode_uleb128(&p, pe);
4121         printf("flag = %ju, vendor = %s\n", (uintmax_t) val, p);
4122         p += strlen((char *) p) + 1;
4123
4124         return (p);
4125 }
4126
4127 static void
4128 dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
4129 {
4130         uint64_t tag, val;
4131         size_t i;
4132         int found, desc;
4133
4134         (void) re;
4135
4136         while (p < pe) {
4137                 tag = _decode_uleb128(&p, pe);
4138                 found = desc = 0;
4139                 for (i = 0; i < sizeof(aeabi_tags) / sizeof(aeabi_tags[0]);
4140                      i++) {
4141                         if (tag == aeabi_tags[i].tag) {
4142                                 found = 1;
4143                                 printf("  %s: ", aeabi_tags[i].s_tag);
4144                                 if (aeabi_tags[i].get_desc) {
4145                                         desc = 1;
4146                                         val = _decode_uleb128(&p, pe);
4147                                         printf("%s\n",
4148                                             aeabi_tags[i].get_desc(val));
4149                                 }
4150                                 break;
4151                         }
4152                         if (tag < aeabi_tags[i].tag)
4153                                 break;
4154                 }
4155                 if (!found) {
4156                         p = dump_unknown_tag(tag, p, pe);
4157                         continue;
4158                 }
4159                 if (desc)
4160                         continue;
4161
4162                 switch (tag) {
4163                 case 4:         /* Tag_CPU_raw_name */
4164                 case 5:         /* Tag_CPU_name */
4165                 case 67:        /* Tag_conformance */
4166                         printf("%s\n", (char *) p);
4167                         p += strlen((char *) p) + 1;
4168                         break;
4169                 case 32:        /* Tag_compatibility */
4170                         p = dump_compatibility_tag(p, pe);
4171                         break;
4172                 case 64:        /* Tag_nodefaults */
4173                         /* ignored, written as 0. */
4174                         (void) _decode_uleb128(&p, pe);
4175                         printf("True\n");
4176                         break;
4177                 case 65:        /* Tag_also_compatible_with */
4178                         val = _decode_uleb128(&p, pe);
4179                         /* Must be Tag_CPU_arch */
4180                         if (val != 6) {
4181                                 printf("unknown\n");
4182                                 break;
4183                         }
4184                         val = _decode_uleb128(&p, pe);
4185                         printf("%s\n", aeabi_cpu_arch(val));
4186                         /* Skip NUL terminator. */
4187                         p++;
4188                         break;
4189                 default:
4190                         putchar('\n');
4191                         break;
4192                 }
4193         }
4194 }
4195
4196 #ifndef Tag_GNU_MIPS_ABI_FP
4197 #define Tag_GNU_MIPS_ABI_FP     4
4198 #endif
4199
4200 static void
4201 dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
4202 {
4203         uint64_t tag, val;
4204
4205         (void) re;
4206
4207         while (p < pe) {
4208                 tag = _decode_uleb128(&p, pe);
4209                 switch (tag) {
4210                 case Tag_GNU_MIPS_ABI_FP:
4211                         val = _decode_uleb128(&p, pe);
4212                         printf("  Tag_GNU_MIPS_ABI_FP: %s\n", mips_abi_fp(val));
4213                         break;
4214                 case 32:        /* Tag_compatibility */
4215                         p = dump_compatibility_tag(p, pe);
4216                         break;
4217                 default:
4218                         p = dump_unknown_tag(tag, p, pe);
4219                         break;
4220                 }
4221         }
4222 }
4223
4224 #ifndef Tag_GNU_Power_ABI_FP
4225 #define Tag_GNU_Power_ABI_FP    4
4226 #endif
4227
4228 #ifndef Tag_GNU_Power_ABI_Vector
4229 #define Tag_GNU_Power_ABI_Vector        8
4230 #endif
4231
4232 static void
4233 dump_ppc_attributes(uint8_t *p, uint8_t *pe)
4234 {
4235         uint64_t tag, val;
4236
4237         while (p < pe) {
4238                 tag = _decode_uleb128(&p, pe);
4239                 switch (tag) {
4240                 case Tag_GNU_Power_ABI_FP:
4241                         val = _decode_uleb128(&p, pe);
4242                         printf("  Tag_GNU_Power_ABI_FP: %s\n", ppc_abi_fp(val));
4243                         break;
4244                 case Tag_GNU_Power_ABI_Vector:
4245                         val = _decode_uleb128(&p, pe);
4246                         printf("  Tag_GNU_Power_ABI_Vector: %s\n",
4247                             ppc_abi_vector(val));
4248                         break;
4249                 case 32:        /* Tag_compatibility */
4250                         p = dump_compatibility_tag(p, pe);
4251                         break;
4252                 default:
4253                         p = dump_unknown_tag(tag, p, pe);
4254                         break;
4255                 }
4256         }
4257 }
4258
4259 static void
4260 dump_attributes(struct readelf *re)
4261 {
4262         struct section *s;
4263         Elf_Data *d;
4264         uint8_t *p, *pe, *sp;
4265         size_t len, seclen, nlen, sublen;
4266         uint64_t val;
4267         int tag, i, elferr;
4268
4269         for (i = 0; (size_t) i < re->shnum; i++) {
4270                 s = &re->sl[i];
4271                 if (s->type != SHT_GNU_ATTRIBUTES &&
4272                     (re->ehdr.e_machine != EM_ARM || s->type != SHT_LOPROC + 3))
4273                         continue;
4274                 (void) elf_errno();
4275                 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4276                         elferr = elf_errno();
4277                         if (elferr != 0)
4278                                 warnx("elf_rawdata failed: %s",
4279                                     elf_errmsg(elferr));
4280                         continue;
4281                 }
4282                 if (d->d_size <= 0)
4283                         continue;
4284                 p = d->d_buf;
4285                 pe = p + d->d_size;
4286                 if (*p != 'A') {
4287                         printf("Unknown Attribute Section Format: %c\n",
4288                             (char) *p);
4289                         continue;
4290                 }
4291                 len = d->d_size - 1;
4292                 p++;
4293                 while (len > 0) {
4294                         if (len < 4) {
4295                                 warnx("truncated attribute section length");
4296                                 return;
4297                         }
4298                         seclen = re->dw_decode(&p, 4);
4299                         if (seclen > len) {
4300                                 warnx("invalid attribute section length");
4301                                 return;
4302                         }
4303                         len -= seclen;
4304                         nlen = strlen((char *) p) + 1;
4305                         if (nlen + 4 > seclen) {
4306                                 warnx("invalid attribute section name");
4307                                 return;
4308                         }
4309                         printf("Attribute Section: %s\n", (char *) p);
4310                         p += nlen;
4311                         seclen -= nlen + 4;
4312                         while (seclen > 0) {
4313                                 sp = p;
4314                                 tag = *p++;
4315                                 sublen = re->dw_decode(&p, 4);
4316                                 if (sublen > seclen) {
4317                                         warnx("invalid attribute sub-section"
4318                                             " length");
4319                                         return;
4320                                 }
4321                                 seclen -= sublen;
4322                                 printf("%s", top_tag(tag));
4323                                 if (tag == 2 || tag == 3) {
4324                                         putchar(':');
4325                                         for (;;) {
4326                                                 val = _decode_uleb128(&p, pe);
4327                                                 if (val == 0)
4328                                                         break;
4329                                                 printf(" %ju", (uintmax_t) val);
4330                                         }
4331                                 }
4332                                 putchar('\n');
4333                                 if (re->ehdr.e_machine == EM_ARM &&
4334                                     s->type == SHT_LOPROC + 3)
4335                                         dump_arm_attributes(re, p, sp + sublen);
4336                                 else if (re->ehdr.e_machine == EM_MIPS ||
4337                                     re->ehdr.e_machine == EM_MIPS_RS3_LE)
4338                                         dump_mips_attributes(re, p,
4339                                             sp + sublen);
4340                                 else if (re->ehdr.e_machine == EM_PPC)
4341                                         dump_ppc_attributes(p, sp + sublen);
4342                                 p = sp + sublen;
4343                         }
4344                 }
4345         }
4346 }
4347
4348 static void
4349 dump_mips_specific_info(struct readelf *re)
4350 {
4351         struct section *s;
4352         int i;
4353
4354         s = NULL;
4355         for (i = 0; (size_t) i < re->shnum; i++) {
4356                 s = &re->sl[i];
4357                 if (s->name != NULL && (!strcmp(s->name, ".MIPS.options") ||
4358                     (s->type == SHT_MIPS_OPTIONS))) {
4359                         dump_mips_options(re, s);
4360                 }
4361         }
4362
4363         if (s->name != NULL && (!strcmp(s->name, ".MIPS.abiflags") ||
4364             (s->type == SHT_MIPS_ABIFLAGS)))
4365                 dump_mips_abiflags(re, s);
4366
4367         /*
4368          * Dump .reginfo if present (although it will be ignored by an OS if a
4369          * .MIPS.options section is present, according to SGI mips64 spec).
4370          */
4371         for (i = 0; (size_t) i < re->shnum; i++) {
4372                 s = &re->sl[i];
4373                 if (s->name != NULL && (!strcmp(s->name, ".reginfo") ||
4374                     (s->type == SHT_MIPS_REGINFO)))
4375                         dump_mips_reginfo(re, s);
4376         }
4377 }
4378
4379 static void
4380 dump_mips_abiflags(struct readelf *re, struct section *s)
4381 {
4382         Elf_Data *d;
4383         uint8_t *p;
4384         int elferr;
4385         uint32_t isa_ext, ases, flags1, flags2;
4386         uint16_t version;
4387         uint8_t isa_level, isa_rev, gpr_size, cpr1_size, cpr2_size, fp_abi;
4388
4389         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4390                 elferr = elf_errno();
4391                 if (elferr != 0)
4392                         warnx("elf_rawdata failed: %s",
4393                             elf_errmsg(elferr));
4394                 return;
4395         }
4396         if (d->d_size != 24) {
4397                 warnx("invalid MIPS abiflags section size");
4398                 return;
4399         }
4400
4401         p = d->d_buf;
4402         version = re->dw_decode(&p, 2);
4403         printf("MIPS ABI Flags Version: %u", version);
4404         if (version != 0) {
4405                 printf(" (unknown)\n\n");
4406                 return;
4407         }
4408         printf("\n\n");
4409
4410         isa_level = re->dw_decode(&p, 1);
4411         isa_rev = re->dw_decode(&p, 1);
4412         gpr_size = re->dw_decode(&p, 1);
4413         cpr1_size = re->dw_decode(&p, 1);
4414         cpr2_size = re->dw_decode(&p, 1);
4415         fp_abi = re->dw_decode(&p, 1);
4416         isa_ext = re->dw_decode(&p, 4);
4417         ases = re->dw_decode(&p, 4);
4418         flags1 = re->dw_decode(&p, 4);
4419         flags2 = re->dw_decode(&p, 4);
4420
4421         printf("ISA: ");
4422         if (isa_rev <= 1)
4423                 printf("MIPS%u\n", isa_level);
4424         else
4425                 printf("MIPS%ur%u\n", isa_level, isa_rev);
4426         printf("GPR size: %d\n", get_mips_register_size(gpr_size));
4427         printf("CPR1 size: %d\n", get_mips_register_size(cpr1_size));
4428         printf("CPR2 size: %d\n", get_mips_register_size(cpr2_size));
4429         printf("FP ABI: ");
4430         switch (fp_abi) {
4431         case 3:
4432                 printf("Soft float");
4433                 break;
4434         default:
4435                 printf("%u", fp_abi);
4436                 break;
4437         }
4438         printf("\nISA Extension: %u\n", isa_ext);
4439         printf("ASEs: %u\n", ases);
4440         printf("FLAGS 1: %08x\n", flags1);
4441         printf("FLAGS 2: %08x\n", flags2);
4442 }
4443
4444 static int
4445 get_mips_register_size(uint8_t flag)
4446 {
4447         switch (flag) {
4448         case 0: return 0;
4449         case 1: return 32;
4450         case 2: return 64;
4451         case 3: return 128;
4452         default: return -1;
4453         }
4454 }
4455 static void
4456 dump_mips_reginfo(struct readelf *re, struct section *s)
4457 {
4458         Elf_Data *d;
4459         int elferr, len;
4460
4461         (void) elf_errno();
4462         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4463                 elferr = elf_errno();
4464                 if (elferr != 0)
4465                         warnx("elf_rawdata failed: %s",
4466                             elf_errmsg(elferr));
4467                 return;
4468         }
4469         if (d->d_size <= 0)
4470                 return;
4471         if (!get_ent_count(s, &len))
4472                 return;
4473
4474         printf("\nSection '%s' contains %d entries:\n", s->name, len);
4475         dump_mips_odk_reginfo(re, d->d_buf, d->d_size);
4476 }
4477
4478 static void
4479 dump_mips_options(struct readelf *re, struct section *s)
4480 {
4481         Elf_Data *d;
4482         uint32_t info;
4483         uint16_t sndx;
4484         uint8_t *p, *pe;
4485         uint8_t kind, size;
4486         int elferr;
4487
4488         (void) elf_errno();
4489         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4490                 elferr = elf_errno();
4491                 if (elferr != 0)
4492                         warnx("elf_rawdata failed: %s",
4493                             elf_errmsg(elferr));
4494                 return;
4495         }
4496         if (d->d_size == 0)
4497                 return;
4498
4499         printf("\nSection %s contains:\n", s->name);
4500         p = d->d_buf;
4501         pe = p + d->d_size;
4502         while (p < pe) {
4503                 if (pe - p < 8) {
4504                         warnx("Truncated MIPS option header");
4505                         return;
4506                 }
4507                 kind = re->dw_decode(&p, 1);
4508                 size = re->dw_decode(&p, 1);
4509                 sndx = re->dw_decode(&p, 2);
4510                 info = re->dw_decode(&p, 4);
4511                 if (size < 8 || size - 8 > pe - p) {
4512                         warnx("Malformed MIPS option header");
4513                         return;
4514                 }
4515                 size -= 8;
4516                 switch (kind) {
4517                 case ODK_REGINFO:
4518                         dump_mips_odk_reginfo(re, p, size);
4519                         break;
4520                 case ODK_EXCEPTIONS:
4521                         printf(" EXCEPTIONS FPU_MIN: %#x\n",
4522                             info & OEX_FPU_MIN);
4523                         printf("%11.11s FPU_MAX: %#x\n", "",
4524                             info & OEX_FPU_MAX);
4525                         dump_mips_option_flags("", mips_exceptions_option,
4526                             info);
4527                         break;
4528                 case ODK_PAD:
4529                         printf(" %-10.10s section: %ju\n", "OPAD",
4530                             (uintmax_t) sndx);
4531                         dump_mips_option_flags("", mips_pad_option, info);
4532                         break;
4533                 case ODK_HWPATCH:
4534                         dump_mips_option_flags("HWPATCH", mips_hwpatch_option,
4535                             info);
4536                         break;
4537                 case ODK_HWAND:
4538                         dump_mips_option_flags("HWAND", mips_hwa_option, info);
4539                         break;
4540                 case ODK_HWOR:
4541                         dump_mips_option_flags("HWOR", mips_hwo_option, info);
4542                         break;
4543                 case ODK_FILL:
4544                         printf(" %-10.10s %#jx\n", "FILL", (uintmax_t) info);
4545                         break;
4546                 case ODK_TAGS:
4547                         printf(" %-10.10s\n", "TAGS");
4548                         break;
4549                 case ODK_GP_GROUP:
4550                         printf(" %-10.10s GP group number: %#x\n", "GP_GROUP",
4551                             info & 0xFFFF);
4552                         if (info & 0x10000)
4553                                 printf(" %-10.10s GP group is "
4554                                     "self-contained\n", "");
4555                         break;
4556                 case ODK_IDENT:
4557                         printf(" %-10.10s default GP group number: %#x\n",
4558                             "IDENT", info & 0xFFFF);
4559                         if (info & 0x10000)
4560                                 printf(" %-10.10s default GP group is "
4561                                     "self-contained\n", "");
4562                         break;
4563                 case ODK_PAGESIZE:
4564                         printf(" %-10.10s\n", "PAGESIZE");
4565                         break;
4566                 default:
4567                         break;
4568                 }
4569                 p += size;
4570         }
4571 }
4572
4573 static void
4574 dump_mips_option_flags(const char *name, struct mips_option *opt, uint64_t info)
4575 {
4576         int first;
4577
4578         first = 1;
4579         for (; opt->desc != NULL; opt++) {
4580                 if (info & opt->flag) {
4581                         printf(" %-10.10s %s\n", first ? name : "",
4582                             opt->desc);
4583                         first = 0;
4584                 }
4585         }
4586 }
4587
4588 static void
4589 dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz)
4590 {
4591         uint32_t ri_gprmask;
4592         uint32_t ri_cprmask[4];
4593         uint64_t ri_gp_value;
4594         uint8_t *pe;
4595         int i;
4596
4597         pe = p + sz;
4598         while (p < pe) {
4599                 ri_gprmask = re->dw_decode(&p, 4);
4600                 /* Skip ri_pad padding field for mips64. */
4601                 if (re->ec == ELFCLASS64)
4602                         re->dw_decode(&p, 4);
4603                 for (i = 0; i < 4; i++)
4604                         ri_cprmask[i] = re->dw_decode(&p, 4);
4605                 if (re->ec == ELFCLASS32)
4606                         ri_gp_value = re->dw_decode(&p, 4);
4607                 else
4608                         ri_gp_value = re->dw_decode(&p, 8);
4609                 printf(" %s    ", option_kind(ODK_REGINFO));
4610                 printf("ri_gprmask:    0x%08jx\n", (uintmax_t) ri_gprmask);
4611                 for (i = 0; i < 4; i++)
4612                         printf("%11.11s ri_cprmask[%d]: 0x%08jx\n", "", i,
4613                             (uintmax_t) ri_cprmask[i]);
4614                 printf("%12.12s", "");
4615                 printf("ri_gp_value:   %#jx\n", (uintmax_t) ri_gp_value);
4616         }
4617 }
4618
4619 static void
4620 dump_arch_specific_info(struct readelf *re)
4621 {
4622
4623         dump_liblist(re);
4624         dump_attributes(re);
4625
4626         switch (re->ehdr.e_machine) {
4627         case EM_MIPS:
4628         case EM_MIPS_RS3_LE:
4629                 dump_mips_specific_info(re);
4630         default:
4631                 break;
4632         }
4633 }
4634
4635 static const char *
4636 dwarf_regname(struct readelf *re, unsigned int num)
4637 {
4638         static char rx[32];
4639         const char *rn;
4640
4641         if ((rn = dwarf_reg(re->ehdr.e_machine, num)) != NULL)
4642                 return (rn);
4643
4644         snprintf(rx, sizeof(rx), "r%u", num);
4645
4646         return (rx);
4647 }
4648
4649 static void
4650 dump_dwarf_line(struct readelf *re)
4651 {
4652         struct section *s;
4653         Dwarf_Die die;
4654         Dwarf_Error de;
4655         Dwarf_Half tag, version, pointer_size;
4656         Dwarf_Unsigned offset, endoff, length, hdrlen, dirndx, mtime, fsize;
4657         Dwarf_Small minlen, defstmt, lrange, opbase, oplen;
4658         Elf_Data *d;
4659         char *pn;
4660         uint64_t address, file, line, column, isa, opsize, udelta;
4661         int64_t sdelta;
4662         uint8_t *p, *pe;
4663         int8_t lbase;
4664         int i, is_stmt, dwarf_size, elferr, ret;
4665
4666         printf("\nDump of debug contents of section .debug_line:\n");
4667
4668         s = NULL;
4669         for (i = 0; (size_t) i < re->shnum; i++) {
4670                 s = &re->sl[i];
4671                 if (s->name != NULL && !strcmp(s->name, ".debug_line"))
4672                         break;
4673         }
4674         if ((size_t) i >= re->shnum)
4675                 return;
4676
4677         (void) elf_errno();
4678         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4679                 elferr = elf_errno();
4680                 if (elferr != 0)
4681                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
4682                 return;
4683         }
4684         if (d->d_size <= 0)
4685                 return;
4686
4687         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4688             NULL, &de)) ==  DW_DLV_OK) {
4689                 die = NULL;
4690                 while (dwarf_siblingof(re->dbg, die, &die, &de) == DW_DLV_OK) {
4691                         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4692                                 warnx("dwarf_tag failed: %s",
4693                                     dwarf_errmsg(de));
4694                                 return;
4695                         }
4696                         /* XXX: What about DW_TAG_partial_unit? */
4697                         if (tag == DW_TAG_compile_unit)
4698                                 break;
4699                 }
4700                 if (die == NULL) {
4701                         warnx("could not find DW_TAG_compile_unit die");
4702                         return;
4703                 }
4704                 if (dwarf_attrval_unsigned(die, DW_AT_stmt_list, &offset,
4705                     &de) != DW_DLV_OK)
4706                         continue;
4707
4708                 length = re->dw_read(d, &offset, 4);
4709                 if (length == 0xffffffff) {
4710                         dwarf_size = 8;
4711                         length = re->dw_read(d, &offset, 8);
4712                 } else
4713                         dwarf_size = 4;
4714
4715                 if (length > d->d_size - offset) {
4716                         warnx("invalid .dwarf_line section");
4717                         continue;
4718                 }
4719
4720                 endoff = offset + length;
4721                 pe = (uint8_t *) d->d_buf + endoff;
4722                 version = re->dw_read(d, &offset, 2);
4723                 hdrlen = re->dw_read(d, &offset, dwarf_size);
4724                 minlen = re->dw_read(d, &offset, 1);
4725                 defstmt = re->dw_read(d, &offset, 1);
4726                 lbase = re->dw_read(d, &offset, 1);
4727                 lrange = re->dw_read(d, &offset, 1);
4728                 opbase = re->dw_read(d, &offset, 1);
4729
4730                 printf("\n");
4731                 printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
4732                 printf("  DWARF version:\t\t%u\n", version);
4733                 printf("  Prologue Length:\t\t%ju\n", (uintmax_t) hdrlen);
4734                 printf("  Minimum Instruction Length:\t%u\n", minlen);
4735                 printf("  Initial value of 'is_stmt':\t%u\n", defstmt);
4736                 printf("  Line Base:\t\t\t%d\n", lbase);
4737                 printf("  Line Range:\t\t\t%u\n", lrange);
4738                 printf("  Opcode Base:\t\t\t%u\n", opbase);
4739                 (void) dwarf_get_address_size(re->dbg, &pointer_size, &de);
4740                 printf("  (Pointer size:\t\t%u)\n", pointer_size);
4741
4742                 printf("\n");
4743                 printf(" Opcodes:\n");
4744                 for (i = 1; i < opbase; i++) {
4745                         oplen = re->dw_read(d, &offset, 1);
4746                         printf("  Opcode %d has %u args\n", i, oplen);
4747                 }
4748
4749                 printf("\n");
4750                 printf(" The Directory Table:\n");
4751                 p = (uint8_t *) d->d_buf + offset;
4752                 while (*p != '\0') {
4753                         printf("  %s\n", (char *) p);
4754                         p += strlen((char *) p) + 1;
4755                 }
4756
4757                 p++;
4758                 printf("\n");
4759                 printf(" The File Name Table:\n");
4760                 printf("  Entry\tDir\tTime\tSize\tName\n");
4761                 i = 0;
4762                 while (*p != '\0') {
4763                         i++;
4764                         pn = (char *) p;
4765                         p += strlen(pn) + 1;
4766                         dirndx = _decode_uleb128(&p, pe);
4767                         mtime = _decode_uleb128(&p, pe);
4768                         fsize = _decode_uleb128(&p, pe);
4769                         printf("  %d\t%ju\t%ju\t%ju\t%s\n", i,
4770                             (uintmax_t) dirndx, (uintmax_t) mtime,
4771                             (uintmax_t) fsize, pn);
4772                 }
4773
4774 #define RESET_REGISTERS                                         \
4775         do {                                                    \
4776                 address        = 0;                             \
4777                 file           = 1;                             \
4778                 line           = 1;                             \
4779                 column         = 0;                             \
4780                 is_stmt        = defstmt;                       \
4781         } while(0)
4782
4783 #define LINE(x) (lbase + (((x) - opbase) % lrange))
4784 #define ADDRESS(x) ((((x) - opbase) / lrange) * minlen)
4785
4786                 p++;
4787                 printf("\n");
4788                 printf(" Line Number Statements:\n");
4789
4790                 RESET_REGISTERS;
4791
4792                 while (p < pe) {
4793
4794                         if (*p == 0) {
4795                                 /*
4796                                  * Extended Opcodes.
4797                                  */
4798                                 p++;
4799                                 opsize = _decode_uleb128(&p, pe);
4800                                 printf("  Extended opcode %u: ", *p);
4801                                 switch (*p) {
4802                                 case DW_LNE_end_sequence:
4803                                         p++;
4804                                         RESET_REGISTERS;
4805                                         printf("End of Sequence\n");
4806                                         break;
4807                                 case DW_LNE_set_address:
4808                                         p++;
4809                                         address = re->dw_decode(&p,
4810                                             pointer_size);
4811                                         printf("set Address to %#jx\n",
4812                                             (uintmax_t) address);
4813                                         break;
4814                                 case DW_LNE_define_file:
4815                                         p++;
4816                                         pn = (char *) p;
4817                                         p += strlen(pn) + 1;
4818                                         dirndx = _decode_uleb128(&p, pe);
4819                                         mtime = _decode_uleb128(&p, pe);
4820                                         fsize = _decode_uleb128(&p, pe);
4821                                         printf("define new file: %s\n", pn);
4822                                         break;
4823                                 default:
4824                                         /* Unrecognized extened opcodes. */
4825                                         p += opsize;
4826                                         printf("unknown opcode\n");
4827                                 }
4828                         } else if (*p > 0 && *p < opbase) {
4829                                 /*
4830                                  * Standard Opcodes.
4831                                  */
4832                                 switch(*p++) {
4833                                 case DW_LNS_copy:
4834                                         printf("  Copy\n");
4835                                         break;
4836                                 case DW_LNS_advance_pc:
4837                                         udelta = _decode_uleb128(&p, pe) *
4838                                             minlen;
4839                                         address += udelta;
4840                                         printf("  Advance PC by %ju to %#jx\n",
4841                                             (uintmax_t) udelta,
4842                                             (uintmax_t) address);
4843                                         break;
4844                                 case DW_LNS_advance_line:
4845                                         sdelta = _decode_sleb128(&p, pe);
4846                                         line += sdelta;
4847                                         printf("  Advance Line by %jd to %ju\n",
4848                                             (intmax_t) sdelta,
4849                                             (uintmax_t) line);
4850                                         break;
4851                                 case DW_LNS_set_file:
4852                                         file = _decode_uleb128(&p, pe);
4853                                         printf("  Set File to %ju\n",
4854                                             (uintmax_t) file);
4855                                         break;
4856                                 case DW_LNS_set_column:
4857                                         column = _decode_uleb128(&p, pe);
4858                                         printf("  Set Column to %ju\n",
4859                                             (uintmax_t) column);
4860                                         break;
4861                                 case DW_LNS_negate_stmt:
4862                                         is_stmt = !is_stmt;
4863                                         printf("  Set is_stmt to %d\n", is_stmt);
4864                                         break;
4865                                 case DW_LNS_set_basic_block:
4866                                         printf("  Set basic block flag\n");
4867                                         break;
4868                                 case DW_LNS_const_add_pc:
4869                                         address += ADDRESS(255);
4870                                         printf("  Advance PC by constant %ju"
4871                                             " to %#jx\n",
4872                                             (uintmax_t) ADDRESS(255),
4873                                             (uintmax_t) address);
4874                                         break;
4875                                 case DW_LNS_fixed_advance_pc:
4876                                         udelta = re->dw_decode(&p, 2);
4877                                         address += udelta;
4878                                         printf("  Advance PC by fixed value "
4879                                             "%ju to %#jx\n",
4880                                             (uintmax_t) udelta,
4881                                             (uintmax_t) address);
4882                                         break;
4883                                 case DW_LNS_set_prologue_end:
4884                                         printf("  Set prologue end flag\n");
4885                                         break;
4886                                 case DW_LNS_set_epilogue_begin:
4887                                         printf("  Set epilogue begin flag\n");
4888                                         break;
4889                                 case DW_LNS_set_isa:
4890                                         isa = _decode_uleb128(&p, pe);
4891                                         printf("  Set isa to %ju\n",
4892                                             (uintmax_t) isa);
4893                                         break;
4894                                 default:
4895                                         /* Unrecognized extended opcodes. */
4896                                         printf("  Unknown extended opcode %u\n",
4897                                             *(p - 1));
4898                                         break;
4899                                 }
4900
4901                         } else {
4902                                 /*
4903                                  * Special Opcodes.
4904                                  */
4905                                 line += LINE(*p);
4906                                 address += ADDRESS(*p);
4907                                 printf("  Special opcode %u: advance Address "
4908                                     "by %ju to %#jx and Line by %jd to %ju\n",
4909                                     *p - opbase, (uintmax_t) ADDRESS(*p),
4910                                     (uintmax_t) address, (intmax_t) LINE(*p),
4911                                     (uintmax_t) line);
4912                                 p++;
4913                         }
4914
4915
4916                 }
4917         }
4918         if (ret == DW_DLV_ERROR)
4919                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
4920
4921 #undef  RESET_REGISTERS
4922 #undef  LINE
4923 #undef  ADDRESS
4924 }
4925
4926 static void
4927 dump_dwarf_line_decoded(struct readelf *re)
4928 {
4929         Dwarf_Die die;
4930         Dwarf_Line *linebuf, ln;
4931         Dwarf_Addr lineaddr;
4932         Dwarf_Signed linecount, srccount;
4933         Dwarf_Unsigned lineno, fn;
4934         Dwarf_Error de;
4935         const char *dir, *file;
4936         char **srcfiles;
4937         int i, ret;
4938
4939         printf("Decoded dump of debug contents of section .debug_line:\n\n");
4940         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4941             NULL, &de)) == DW_DLV_OK) {
4942                 if (dwarf_siblingof(re->dbg, NULL, &die, &de) != DW_DLV_OK)
4943                         continue;
4944                 if (dwarf_attrval_string(die, DW_AT_name, &file, &de) !=
4945                     DW_DLV_OK)
4946                         file = NULL;
4947                 if (dwarf_attrval_string(die, DW_AT_comp_dir, &dir, &de) !=
4948                     DW_DLV_OK)
4949                         dir = NULL;
4950                 printf("CU: ");
4951                 if (dir && file && file[0] != '/')
4952                         printf("%s/", dir);
4953                 if (file)
4954                         printf("%s", file);
4955                 putchar('\n');
4956                 printf("%-37s %11s   %s\n", "Filename", "Line Number",
4957                     "Starting Address");
4958                 if (dwarf_srclines(die, &linebuf, &linecount, &de) != DW_DLV_OK)
4959                         continue;
4960                 if (dwarf_srcfiles(die, &srcfiles, &srccount, &de) != DW_DLV_OK)
4961                         continue;
4962                 for (i = 0; i < linecount; i++) {
4963                         ln = linebuf[i];
4964                         if (dwarf_line_srcfileno(ln, &fn, &de) != DW_DLV_OK)
4965                                 continue;
4966                         if (dwarf_lineno(ln, &lineno, &de) != DW_DLV_OK)
4967                                 continue;
4968                         if (dwarf_lineaddr(ln, &lineaddr, &de) != DW_DLV_OK)
4969                                 continue;
4970                         printf("%-37s %11ju %#18jx\n",
4971                             basename(srcfiles[fn - 1]), (uintmax_t) lineno,
4972                             (uintmax_t) lineaddr);
4973                 }
4974                 putchar('\n');
4975         }
4976 }
4977
4978 static void
4979 dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level)
4980 {
4981         Dwarf_Attribute *attr_list;
4982         Dwarf_Die ret_die;
4983         Dwarf_Off dieoff, cuoff, culen, attroff;
4984         Dwarf_Unsigned ate, lang, v_udata, v_sig;
4985         Dwarf_Signed attr_count, v_sdata;
4986         Dwarf_Off v_off;
4987         Dwarf_Addr v_addr;
4988         Dwarf_Half tag, attr, form;
4989         Dwarf_Block *v_block;
4990         Dwarf_Bool v_bool, is_info;
4991         Dwarf_Sig8 v_sig8;
4992         Dwarf_Error de;
4993         Dwarf_Ptr v_expr;
4994         const char *tag_str, *attr_str, *ate_str, *lang_str;
4995         char unk_tag[32], unk_attr[32];
4996         char *v_str;
4997         uint8_t *b, *p;
4998         int i, j, abc, ret;
4999
5000         if (dwarf_dieoffset(die, &dieoff, &de) != DW_DLV_OK) {
5001                 warnx("dwarf_dieoffset failed: %s", dwarf_errmsg(de));
5002                 goto cont_search;
5003         }
5004
5005         printf(" <%d><%jx>: ", level, (uintmax_t) dieoff);
5006
5007         if (dwarf_die_CU_offset_range(die, &cuoff, &culen, &de) != DW_DLV_OK) {
5008                 warnx("dwarf_die_CU_offset_range failed: %s",
5009                       dwarf_errmsg(de));
5010                 cuoff = 0;
5011         }
5012
5013         abc = dwarf_die_abbrev_code(die);
5014         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5015                 warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5016                 goto cont_search;
5017         }
5018         if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5019                 snprintf(unk_tag, sizeof(unk_tag), "[Unknown Tag: %#x]", tag);
5020                 tag_str = unk_tag;
5021         }
5022
5023         printf("Abbrev Number: %d (%s)\n", abc, tag_str);
5024
5025         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5026             DW_DLV_OK) {
5027                 if (ret == DW_DLV_ERROR)
5028                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5029                 goto cont_search;
5030         }
5031
5032         for (i = 0; i < attr_count; i++) {
5033                 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
5034                         warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
5035                         continue;
5036                 }
5037                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5038                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5039                         continue;
5040                 }
5041                 if (dwarf_get_AT_name(attr, &attr_str) != DW_DLV_OK) {
5042                         snprintf(unk_attr, sizeof(unk_attr),
5043                             "[Unknown AT: %#x]", attr);
5044                         attr_str = unk_attr;
5045                 }
5046                 if (dwarf_attroffset(attr_list[i], &attroff, &de) !=
5047                     DW_DLV_OK) {
5048                         warnx("dwarf_attroffset failed: %s", dwarf_errmsg(de));
5049                         attroff = 0;
5050                 }
5051                 printf("    <%jx>   %-18s: ", (uintmax_t) attroff, attr_str);
5052                 switch (form) {
5053                 case DW_FORM_ref_addr:
5054                 case DW_FORM_sec_offset:
5055                         if (dwarf_global_formref(attr_list[i], &v_off, &de) !=
5056                             DW_DLV_OK) {
5057                                 warnx("dwarf_global_formref failed: %s",
5058                                     dwarf_errmsg(de));
5059                                 continue;
5060                         }
5061                         if (form == DW_FORM_ref_addr)
5062                                 printf("<0x%jx>", (uintmax_t) v_off);
5063                         else
5064                                 printf("0x%jx", (uintmax_t) v_off);
5065                         break;
5066
5067                 case DW_FORM_ref1:
5068                 case DW_FORM_ref2:
5069                 case DW_FORM_ref4:
5070                 case DW_FORM_ref8:
5071                 case DW_FORM_ref_udata:
5072                         if (dwarf_formref(attr_list[i], &v_off, &de) !=
5073                             DW_DLV_OK) {
5074                                 warnx("dwarf_formref failed: %s",
5075                                     dwarf_errmsg(de));
5076                                 continue;
5077                         }
5078                         v_off += cuoff;
5079                         printf("<0x%jx>", (uintmax_t) v_off);
5080                         break;
5081
5082                 case DW_FORM_addr:
5083                         if (dwarf_formaddr(attr_list[i], &v_addr, &de) !=
5084                             DW_DLV_OK) {
5085                                 warnx("dwarf_formaddr failed: %s",
5086                                     dwarf_errmsg(de));
5087                                 continue;
5088                         }
5089                         printf("%#jx", (uintmax_t) v_addr);
5090                         break;
5091
5092                 case DW_FORM_data1:
5093                 case DW_FORM_data2:
5094                 case DW_FORM_data4:
5095                 case DW_FORM_data8:
5096                 case DW_FORM_udata:
5097                         if (dwarf_formudata(attr_list[i], &v_udata, &de) !=
5098                             DW_DLV_OK) {
5099                                 warnx("dwarf_formudata failed: %s",
5100                                     dwarf_errmsg(de));
5101                                 continue;
5102                         }
5103                         if (attr == DW_AT_high_pc)
5104                                 printf("0x%jx", (uintmax_t) v_udata);
5105                         else
5106                                 printf("%ju", (uintmax_t) v_udata);
5107                         break;
5108
5109                 case DW_FORM_sdata:
5110                         if (dwarf_formsdata(attr_list[i], &v_sdata, &de) !=
5111                             DW_DLV_OK) {
5112                                 warnx("dwarf_formudata failed: %s",
5113                                     dwarf_errmsg(de));
5114                                 continue;
5115                         }
5116                         printf("%jd", (intmax_t) v_sdata);
5117                         break;
5118
5119                 case DW_FORM_flag:
5120                         if (dwarf_formflag(attr_list[i], &v_bool, &de) !=
5121                             DW_DLV_OK) {
5122                                 warnx("dwarf_formflag failed: %s",
5123                                     dwarf_errmsg(de));
5124                                 continue;
5125                         }
5126                         printf("%jd", (intmax_t) v_bool);
5127                         break;
5128
5129                 case DW_FORM_flag_present:
5130                         putchar('1');
5131                         break;
5132
5133                 case DW_FORM_string:
5134                 case DW_FORM_strp:
5135                         if (dwarf_formstring(attr_list[i], &v_str, &de) !=
5136                             DW_DLV_OK) {
5137                                 warnx("dwarf_formstring failed: %s",
5138                                     dwarf_errmsg(de));
5139                                 continue;
5140                         }
5141                         if (form == DW_FORM_string)
5142                                 printf("%s", v_str);
5143                         else
5144                                 printf("(indirect string) %s", v_str);
5145                         break;
5146
5147                 case DW_FORM_block:
5148                 case DW_FORM_block1:
5149                 case DW_FORM_block2:
5150                 case DW_FORM_block4:
5151                         if (dwarf_formblock(attr_list[i], &v_block, &de) !=
5152                             DW_DLV_OK) {
5153                                 warnx("dwarf_formblock failed: %s",
5154                                     dwarf_errmsg(de));
5155                                 continue;
5156                         }
5157                         printf("%ju byte block:", (uintmax_t) v_block->bl_len);
5158                         b = v_block->bl_data;
5159                         for (j = 0; (Dwarf_Unsigned) j < v_block->bl_len; j++)
5160                                 printf(" %x", b[j]);
5161                         printf("\t(");
5162                         dump_dwarf_block(re, v_block->bl_data, v_block->bl_len);
5163                         putchar(')');
5164                         break;
5165
5166                 case DW_FORM_exprloc:
5167                         if (dwarf_formexprloc(attr_list[i], &v_udata, &v_expr,
5168                             &de) != DW_DLV_OK) {
5169                                 warnx("dwarf_formexprloc failed: %s",
5170                                     dwarf_errmsg(de));
5171                                 continue;
5172                         }
5173                         printf("%ju byte block:", (uintmax_t) v_udata);
5174                         b = v_expr;
5175                         for (j = 0; (Dwarf_Unsigned) j < v_udata; j++)
5176                                 printf(" %x", b[j]);
5177                         printf("\t(");
5178                         dump_dwarf_block(re, v_expr, v_udata);
5179                         putchar(')');
5180                         break;
5181
5182                 case DW_FORM_ref_sig8:
5183                         if (dwarf_formsig8(attr_list[i], &v_sig8, &de) !=
5184                             DW_DLV_OK) {
5185                                 warnx("dwarf_formsig8 failed: %s",
5186                                     dwarf_errmsg(de));
5187                                 continue;
5188                         }
5189                         p = (uint8_t *)(uintptr_t) &v_sig8.signature[0];
5190                         v_sig = re->dw_decode(&p, 8);
5191                         printf("signature: 0x%jx", (uintmax_t) v_sig);
5192                 }
5193                 switch (attr) {
5194                 case DW_AT_encoding:
5195                         if (dwarf_attrval_unsigned(die, attr, &ate, &de) !=
5196                             DW_DLV_OK)
5197                                 break;
5198                         if (dwarf_get_ATE_name(ate, &ate_str) != DW_DLV_OK)
5199                                 ate_str = "DW_ATE_UNKNOWN";
5200                         printf("\t(%s)", &ate_str[strlen("DW_ATE_")]);
5201                         break;
5202
5203                 case DW_AT_language:
5204                         if (dwarf_attrval_unsigned(die, attr, &lang, &de) !=
5205                             DW_DLV_OK)
5206                                 break;
5207                         if (dwarf_get_LANG_name(lang, &lang_str) != DW_DLV_OK)
5208                                 break;
5209                         printf("\t(%s)", &lang_str[strlen("DW_LANG_")]);
5210                         break;
5211
5212                 case DW_AT_location:
5213                 case DW_AT_string_length:
5214                 case DW_AT_return_addr:
5215                 case DW_AT_data_member_location:
5216                 case DW_AT_frame_base:
5217                 case DW_AT_segment:
5218                 case DW_AT_static_link:
5219                 case DW_AT_use_location:
5220                 case DW_AT_vtable_elem_location:
5221                         switch (form) {
5222                         case DW_FORM_data4:
5223                         case DW_FORM_data8:
5224                         case DW_FORM_sec_offset:
5225                                 printf("\t(location list)");
5226                                 break;
5227                         default:
5228                                 break;
5229                         }
5230
5231                 default:
5232                         break;
5233                 }
5234                 putchar('\n');
5235         }
5236
5237
5238 cont_search:
5239         /* Search children. */
5240         ret = dwarf_child(die, &ret_die, &de);
5241         if (ret == DW_DLV_ERROR)
5242                 warnx("dwarf_child: %s", dwarf_errmsg(de));
5243         else if (ret == DW_DLV_OK)
5244                 dump_dwarf_die(re, ret_die, level + 1);
5245
5246         /* Search sibling. */
5247         is_info = dwarf_get_die_infotypes_flag(die);
5248         ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
5249         if (ret == DW_DLV_ERROR)
5250                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5251         else if (ret == DW_DLV_OK)
5252                 dump_dwarf_die(re, ret_die, level);
5253
5254         dwarf_dealloc(re->dbg, die, DW_DLA_DIE);
5255 }
5256
5257 static void
5258 set_cu_context(struct readelf *re, Dwarf_Half psize, Dwarf_Half osize,
5259     Dwarf_Half ver)
5260 {
5261
5262         re->cu_psize = psize;
5263         re->cu_osize = osize;
5264         re->cu_ver = ver;
5265 }
5266
5267 static void
5268 dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info)
5269 {
5270         struct section *s;
5271         Dwarf_Die die;
5272         Dwarf_Error de;
5273         Dwarf_Half tag, version, pointer_size, off_size;
5274         Dwarf_Off cu_offset, cu_length;
5275         Dwarf_Off aboff;
5276         Dwarf_Unsigned typeoff;
5277         Dwarf_Sig8 sig8;
5278         Dwarf_Unsigned sig;
5279         uint8_t *p;
5280         const char *sn;
5281         int i, ret;
5282
5283         sn = is_info ? ".debug_info" : ".debug_types";
5284
5285         s = NULL;
5286         for (i = 0; (size_t) i < re->shnum; i++) {
5287                 s = &re->sl[i];
5288                 if (s->name != NULL && !strcmp(s->name, sn))
5289                         break;
5290         }
5291         if ((size_t) i >= re->shnum)
5292                 return;
5293
5294         do {
5295                 printf("\nDump of debug contents of section %s:\n", sn);
5296
5297                 while ((ret = dwarf_next_cu_header_c(re->dbg, is_info, NULL,
5298                     &version, &aboff, &pointer_size, &off_size, NULL, &sig8,
5299                     &typeoff, NULL, &de)) == DW_DLV_OK) {
5300                         set_cu_context(re, pointer_size, off_size, version);
5301                         die = NULL;
5302                         while (dwarf_siblingof_b(re->dbg, die, &die, is_info,
5303                             &de) == DW_DLV_OK) {
5304                                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5305                                         warnx("dwarf_tag failed: %s",
5306                                             dwarf_errmsg(de));
5307                                         continue;
5308                                 }
5309                                 /* XXX: What about DW_TAG_partial_unit? */
5310                                 if ((is_info && tag == DW_TAG_compile_unit) ||
5311                                     (!is_info && tag == DW_TAG_type_unit))
5312                                         break;
5313                         }
5314                         if (die == NULL && is_info) {
5315                                 warnx("could not find DW_TAG_compile_unit "
5316                                     "die");
5317                                 continue;
5318                         } else if (die == NULL && !is_info) {
5319                                 warnx("could not find DW_TAG_type_unit die");
5320                                 continue;
5321                         }
5322
5323                         if (dwarf_die_CU_offset_range(die, &cu_offset,
5324                             &cu_length, &de) != DW_DLV_OK) {
5325                                 warnx("dwarf_die_CU_offset failed: %s",
5326                                     dwarf_errmsg(de));
5327                                 continue;
5328                         }
5329
5330                         cu_length -= off_size == 4 ? 4 : 12;
5331
5332                         sig = 0;
5333                         if (!is_info) {
5334                                 p = (uint8_t *)(uintptr_t) &sig8.signature[0];
5335                                 sig = re->dw_decode(&p, 8);
5336                         }
5337
5338                         printf("\n  Type Unit @ offset 0x%jx:\n",
5339                             (uintmax_t) cu_offset);
5340                         printf("    Length:\t\t%#jx (%d-bit)\n",
5341                             (uintmax_t) cu_length, off_size == 4 ? 32 : 64);
5342                         printf("    Version:\t\t%u\n", version);
5343                         printf("    Abbrev Offset:\t0x%jx\n",
5344                             (uintmax_t) aboff);
5345                         printf("    Pointer Size:\t%u\n", pointer_size);
5346                         if (!is_info) {
5347                                 printf("    Signature:\t\t0x%016jx\n",
5348                                     (uintmax_t) sig);
5349                                 printf("    Type Offset:\t0x%jx\n",
5350                                     (uintmax_t) typeoff);
5351                         }
5352
5353                         dump_dwarf_die(re, die, 0);
5354                 }
5355                 if (ret == DW_DLV_ERROR)
5356                         warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5357                 if (is_info)
5358                         break;
5359         } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
5360 }
5361
5362 static void
5363 dump_dwarf_abbrev(struct readelf *re)
5364 {
5365         Dwarf_Abbrev ab;
5366         Dwarf_Off aboff, atoff;
5367         Dwarf_Unsigned length, attr_count;
5368         Dwarf_Signed flag, form;
5369         Dwarf_Half tag, attr;
5370         Dwarf_Error de;
5371         const char *tag_str, *attr_str, *form_str;
5372         char unk_tag[32], unk_attr[32], unk_form[32];
5373         int i, j, ret;
5374
5375         printf("\nContents of section .debug_abbrev:\n\n");
5376
5377         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, &aboff,
5378             NULL, NULL, &de)) ==  DW_DLV_OK) {
5379                 printf("  Number TAG\n");
5380                 i = 0;
5381                 while ((ret = dwarf_get_abbrev(re->dbg, aboff, &ab, &length,
5382                     &attr_count, &de)) == DW_DLV_OK) {
5383                         if (length == 1) {
5384                                 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5385                                 break;
5386                         }
5387                         aboff += length;
5388                         printf("%4d", ++i);
5389                         if (dwarf_get_abbrev_tag(ab, &tag, &de) != DW_DLV_OK) {
5390                                 warnx("dwarf_get_abbrev_tag failed: %s",
5391                                     dwarf_errmsg(de));
5392                                 goto next_abbrev;
5393                         }
5394                         if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5395                                 snprintf(unk_tag, sizeof(unk_tag),
5396                                     "[Unknown Tag: %#x]", tag);
5397                                 tag_str = unk_tag;
5398                         }
5399                         if (dwarf_get_abbrev_children_flag(ab, &flag, &de) !=
5400                             DW_DLV_OK) {
5401                                 warnx("dwarf_get_abbrev_children_flag failed:"
5402                                     " %s", dwarf_errmsg(de));
5403                                 goto next_abbrev;
5404                         }
5405                         printf("      %s    %s\n", tag_str,
5406                             flag ? "[has children]" : "[no children]");
5407                         for (j = 0; (Dwarf_Unsigned) j < attr_count; j++) {
5408                                 if (dwarf_get_abbrev_entry(ab, (Dwarf_Signed) j,
5409                                     &attr, &form, &atoff, &de) != DW_DLV_OK) {
5410                                         warnx("dwarf_get_abbrev_entry failed:"
5411                                             " %s", dwarf_errmsg(de));
5412                                         continue;
5413                                 }
5414                                 if (dwarf_get_AT_name(attr, &attr_str) !=
5415                                     DW_DLV_OK) {
5416                                         snprintf(unk_attr, sizeof(unk_attr),
5417                                             "[Unknown AT: %#x]", attr);
5418                                         attr_str = unk_attr;
5419                                 }
5420                                 if (dwarf_get_FORM_name(form, &form_str) !=
5421                                     DW_DLV_OK) {
5422                                         snprintf(unk_form, sizeof(unk_form),
5423                                             "[Unknown Form: %#x]",
5424                                             (Dwarf_Half) form);
5425                                         form_str = unk_form;
5426                                 }
5427                                 printf("    %-18s %s\n", attr_str, form_str);
5428                         }
5429                 next_abbrev:
5430                         dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5431                 }
5432                 if (ret != DW_DLV_OK)
5433                         warnx("dwarf_get_abbrev: %s", dwarf_errmsg(de));
5434         }
5435         if (ret == DW_DLV_ERROR)
5436                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5437 }
5438
5439 static void
5440 dump_dwarf_pubnames(struct readelf *re)
5441 {
5442         struct section *s;
5443         Dwarf_Off die_off;
5444         Dwarf_Unsigned offset, length, nt_cu_offset, nt_cu_length;
5445         Dwarf_Signed cnt;
5446         Dwarf_Global *globs;
5447         Dwarf_Half nt_version;
5448         Dwarf_Error de;
5449         Elf_Data *d;
5450         char *glob_name;
5451         int i, dwarf_size, elferr;
5452
5453         printf("\nContents of the .debug_pubnames section:\n");
5454
5455         s = NULL;
5456         for (i = 0; (size_t) i < re->shnum; i++) {
5457                 s = &re->sl[i];
5458                 if (s->name != NULL && !strcmp(s->name, ".debug_pubnames"))
5459                         break;
5460         }
5461         if ((size_t) i >= re->shnum)
5462                 return;
5463
5464         (void) elf_errno();
5465         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5466                 elferr = elf_errno();
5467                 if (elferr != 0)
5468                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
5469                 return;
5470         }
5471         if (d->d_size <= 0)
5472                 return;
5473
5474         /* Read in .debug_pubnames section table header. */
5475         offset = 0;
5476         length = re->dw_read(d, &offset, 4);
5477         if (length == 0xffffffff) {
5478                 dwarf_size = 8;
5479                 length = re->dw_read(d, &offset, 8);
5480         } else
5481                 dwarf_size = 4;
5482
5483         if (length > d->d_size - offset) {
5484                 warnx("invalid .dwarf_pubnames section");
5485                 return;
5486         }
5487
5488         nt_version = re->dw_read(d, &offset, 2);
5489         nt_cu_offset = re->dw_read(d, &offset, dwarf_size);
5490         nt_cu_length = re->dw_read(d, &offset, dwarf_size);
5491         printf("  Length:\t\t\t\t%ju\n", (uintmax_t) length);
5492         printf("  Version:\t\t\t\t%u\n", nt_version);
5493         printf("  Offset into .debug_info section:\t%ju\n",
5494             (uintmax_t) nt_cu_offset);
5495         printf("  Size of area in .debug_info section:\t%ju\n",
5496             (uintmax_t) nt_cu_length);
5497
5498         if (dwarf_get_globals(re->dbg, &globs, &cnt, &de) != DW_DLV_OK) {
5499                 warnx("dwarf_get_globals failed: %s", dwarf_errmsg(de));
5500                 return;
5501         }
5502
5503         printf("\n    Offset      Name\n");
5504         for (i = 0; i < cnt; i++) {
5505                 if (dwarf_globname(globs[i], &glob_name, &de) != DW_DLV_OK) {
5506                         warnx("dwarf_globname failed: %s", dwarf_errmsg(de));
5507                         continue;
5508                 }
5509                 if (dwarf_global_die_offset(globs[i], &die_off, &de) !=
5510                     DW_DLV_OK) {
5511                         warnx("dwarf_global_die_offset failed: %s",
5512                             dwarf_errmsg(de));
5513                         continue;
5514                 }
5515                 printf("    %-11ju %s\n", (uintmax_t) die_off, glob_name);
5516         }
5517 }
5518
5519 static void
5520 dump_dwarf_aranges(struct readelf *re)
5521 {
5522         struct section *s;
5523         Dwarf_Arange *aranges;
5524         Dwarf_Addr start;
5525         Dwarf_Unsigned offset, length, as_cu_offset;
5526         Dwarf_Off die_off;
5527         Dwarf_Signed cnt;
5528         Dwarf_Half as_version, as_addrsz, as_segsz;
5529         Dwarf_Error de;
5530         Elf_Data *d;
5531         int i, dwarf_size, elferr;
5532
5533         printf("\nContents of section .debug_aranges:\n");
5534
5535         s = NULL;
5536         for (i = 0; (size_t) i < re->shnum; i++) {
5537                 s = &re->sl[i];
5538                 if (s->name != NULL && !strcmp(s->name, ".debug_aranges"))
5539                         break;
5540         }
5541         if ((size_t) i >= re->shnum)
5542                 return;
5543
5544         (void) elf_errno();
5545         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5546                 elferr = elf_errno();
5547                 if (elferr != 0)
5548                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
5549                 return;
5550         }
5551         if (d->d_size <= 0)
5552                 return;
5553
5554         /* Read in the .debug_aranges section table header. */
5555         offset = 0;
5556         length = re->dw_read(d, &offset, 4);
5557         if (length == 0xffffffff) {
5558                 dwarf_size = 8;
5559                 length = re->dw_read(d, &offset, 8);
5560         } else
5561                 dwarf_size = 4;
5562
5563         if (length > d->d_size - offset) {
5564                 warnx("invalid .dwarf_aranges section");
5565                 return;
5566         }
5567
5568         as_version = re->dw_read(d, &offset, 2);
5569         as_cu_offset = re->dw_read(d, &offset, dwarf_size);
5570         as_addrsz = re->dw_read(d, &offset, 1);
5571         as_segsz = re->dw_read(d, &offset, 1);
5572
5573         printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
5574         printf("  Version:\t\t\t%u\n", as_version);
5575         printf("  Offset into .debug_info:\t%ju\n", (uintmax_t) as_cu_offset);
5576         printf("  Pointer Size:\t\t\t%u\n", as_addrsz);
5577         printf("  Segment Size:\t\t\t%u\n", as_segsz);
5578
5579         if (dwarf_get_aranges(re->dbg, &aranges, &cnt, &de) != DW_DLV_OK) {
5580                 warnx("dwarf_get_aranges failed: %s", dwarf_errmsg(de));
5581                 return;
5582         }
5583
5584         printf("\n    Address  Length\n");
5585         for (i = 0; i < cnt; i++) {
5586                 if (dwarf_get_arange_info(aranges[i], &start, &length,
5587                     &die_off, &de) != DW_DLV_OK) {
5588                         warnx("dwarf_get_arange_info failed: %s",
5589                             dwarf_errmsg(de));
5590                         continue;
5591                 }
5592                 printf("    %08jx %ju\n", (uintmax_t) start,
5593                     (uintmax_t) length);
5594         }
5595 }
5596
5597 static void
5598 dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die, Dwarf_Addr base)
5599 {
5600         Dwarf_Attribute *attr_list;
5601         Dwarf_Ranges *ranges;
5602         Dwarf_Die ret_die;
5603         Dwarf_Error de;
5604         Dwarf_Addr base0;
5605         Dwarf_Half attr;
5606         Dwarf_Signed attr_count, cnt;
5607         Dwarf_Unsigned off, bytecnt;
5608         int i, j, ret;
5609
5610         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5611             DW_DLV_OK) {
5612                 if (ret == DW_DLV_ERROR)
5613                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5614                 goto cont_search;
5615         }
5616
5617         for (i = 0; i < attr_count; i++) {
5618                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5619                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5620                         continue;
5621                 }
5622                 if (attr != DW_AT_ranges)
5623                         continue;
5624                 if (dwarf_formudata(attr_list[i], &off, &de) != DW_DLV_OK) {
5625                         warnx("dwarf_formudata failed: %s", dwarf_errmsg(de));
5626                         continue;
5627                 }
5628                 if (dwarf_get_ranges(re->dbg, (Dwarf_Off) off, &ranges, &cnt,
5629                     &bytecnt, &de) != DW_DLV_OK)
5630                         continue;
5631                 base0 = base;
5632                 for (j = 0; j < cnt; j++) {
5633                         printf("    %08jx ", (uintmax_t) off);
5634                         if (ranges[j].dwr_type == DW_RANGES_END) {
5635                                 printf("%s\n", "<End of list>");
5636                                 continue;
5637                         } else if (ranges[j].dwr_type ==
5638                             DW_RANGES_ADDRESS_SELECTION) {
5639                                 base0 = ranges[j].dwr_addr2;
5640                                 continue;
5641                         }
5642                         if (re->ec == ELFCLASS32)
5643                                 printf("%08jx %08jx\n",
5644                                     (uintmax_t) (ranges[j].dwr_addr1 + base0),
5645                                     (uintmax_t) (ranges[j].dwr_addr2 + base0));
5646                         else
5647                                 printf("%016jx %016jx\n",
5648                                     (uintmax_t) (ranges[j].dwr_addr1 + base0),
5649                                     (uintmax_t) (ranges[j].dwr_addr2 + base0));
5650                 }
5651         }
5652
5653 cont_search:
5654         /* Search children. */
5655         ret = dwarf_child(die, &ret_die, &de);
5656         if (ret == DW_DLV_ERROR)
5657                 warnx("dwarf_child: %s", dwarf_errmsg(de));
5658         else if (ret == DW_DLV_OK)
5659                 dump_dwarf_ranges_foreach(re, ret_die, base);
5660
5661         /* Search sibling. */
5662         ret = dwarf_siblingof(re->dbg, die, &ret_die, &de);
5663         if (ret == DW_DLV_ERROR)
5664                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5665         else if (ret == DW_DLV_OK)
5666                 dump_dwarf_ranges_foreach(re, ret_die, base);
5667 }
5668
5669 static void
5670 dump_dwarf_ranges(struct readelf *re)
5671 {
5672         Dwarf_Ranges *ranges;
5673         Dwarf_Die die;
5674         Dwarf_Signed cnt;
5675         Dwarf_Unsigned bytecnt;
5676         Dwarf_Half tag;
5677         Dwarf_Error de;
5678         Dwarf_Unsigned lowpc;
5679         int ret;
5680
5681         if (dwarf_get_ranges(re->dbg, 0, &ranges, &cnt, &bytecnt, &de) !=
5682             DW_DLV_OK)
5683                 return;
5684
5685         printf("Contents of the .debug_ranges section:\n\n");
5686         if (re->ec == ELFCLASS32)
5687                 printf("    %-8s %-8s %s\n", "Offset", "Begin", "End");
5688         else
5689                 printf("    %-8s %-16s %s\n", "Offset", "Begin", "End");
5690
5691         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
5692             NULL, &de)) == DW_DLV_OK) {
5693                 die = NULL;
5694                 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
5695                         continue;
5696                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5697                         warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5698                         continue;
5699                 }
5700                 /* XXX: What about DW_TAG_partial_unit? */
5701                 lowpc = 0;
5702                 if (tag == DW_TAG_compile_unit) {
5703                         if (dwarf_attrval_unsigned(die, DW_AT_low_pc, &lowpc,
5704                             &de) != DW_DLV_OK)
5705                                 lowpc = 0;
5706                 }
5707
5708                 dump_dwarf_ranges_foreach(re, die, (Dwarf_Addr) lowpc);
5709         }
5710         putchar('\n');
5711 }
5712
5713 static void
5714 dump_dwarf_macinfo(struct readelf *re)
5715 {
5716         Dwarf_Unsigned offset;
5717         Dwarf_Signed cnt;
5718         Dwarf_Macro_Details *md;
5719         Dwarf_Error de;
5720         const char *mi_str;
5721         char unk_mi[32];
5722         int i;
5723
5724 #define _MAX_MACINFO_ENTRY      65535
5725
5726         printf("\nContents of section .debug_macinfo:\n\n");
5727
5728         offset = 0;
5729         while (dwarf_get_macro_details(re->dbg, offset, _MAX_MACINFO_ENTRY,
5730             &cnt, &md, &de) == DW_DLV_OK) {
5731                 for (i = 0; i < cnt; i++) {
5732                         offset = md[i].dmd_offset + 1;
5733                         if (md[i].dmd_type == 0)
5734                                 break;
5735                         if (dwarf_get_MACINFO_name(md[i].dmd_type, &mi_str) !=
5736                             DW_DLV_OK) {
5737                                 snprintf(unk_mi, sizeof(unk_mi),
5738                                     "[Unknown MACINFO: %#x]", md[i].dmd_type);
5739                                 mi_str = unk_mi;
5740                         }
5741                         printf(" %s", mi_str);
5742                         switch (md[i].dmd_type) {
5743                         case DW_MACINFO_define:
5744                         case DW_MACINFO_undef:
5745                                 printf(" - lineno : %jd macro : %s\n",
5746                                     (intmax_t) md[i].dmd_lineno,
5747                                     md[i].dmd_macro);
5748                                 break;
5749                         case DW_MACINFO_start_file:
5750                                 printf(" - lineno : %jd filenum : %jd\n",
5751                                     (intmax_t) md[i].dmd_lineno,
5752                                     (intmax_t) md[i].dmd_fileindex);
5753                                 break;
5754                         default:
5755                                 putchar('\n');
5756                                 break;
5757                         }
5758                 }
5759         }
5760
5761 #undef  _MAX_MACINFO_ENTRY
5762 }
5763
5764 static void
5765 dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie, uint8_t *insts,
5766     Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf, Dwarf_Addr pc,
5767     Dwarf_Debug dbg)
5768 {
5769         Dwarf_Frame_Op *oplist;
5770         Dwarf_Signed opcnt, delta;
5771         Dwarf_Small op;
5772         Dwarf_Error de;
5773         const char *op_str;
5774         char unk_op[32];
5775         int i;
5776
5777         if (dwarf_expand_frame_instructions(cie, insts, len, &oplist,
5778             &opcnt, &de) != DW_DLV_OK) {
5779                 warnx("dwarf_expand_frame_instructions failed: %s",
5780                     dwarf_errmsg(de));
5781                 return;
5782         }
5783
5784         for (i = 0; i < opcnt; i++) {
5785                 if (oplist[i].fp_base_op != 0)
5786                         op = oplist[i].fp_base_op << 6;
5787                 else
5788                         op = oplist[i].fp_extended_op;
5789                 if (dwarf_get_CFA_name(op, &op_str) != DW_DLV_OK) {
5790                         snprintf(unk_op, sizeof(unk_op), "[Unknown CFA: %#x]",
5791                             op);
5792                         op_str = unk_op;
5793                 }
5794                 printf("  %s", op_str);
5795                 switch (op) {
5796                 case DW_CFA_advance_loc:
5797                         delta = oplist[i].fp_offset * caf;
5798                         pc += delta;
5799                         printf(": %ju to %08jx", (uintmax_t) delta,
5800                             (uintmax_t) pc);
5801                         break;
5802                 case DW_CFA_offset:
5803                 case DW_CFA_offset_extended:
5804                 case DW_CFA_offset_extended_sf:
5805                         delta = oplist[i].fp_offset * daf;
5806                         printf(": r%u (%s) at cfa%+jd", oplist[i].fp_register,
5807                             dwarf_regname(re, oplist[i].fp_register),
5808                             (intmax_t) delta);
5809                         break;
5810                 case DW_CFA_restore:
5811                         printf(": r%u (%s)", oplist[i].fp_register,
5812                             dwarf_regname(re, oplist[i].fp_register));
5813                         break;
5814                 case DW_CFA_set_loc:
5815                         pc = oplist[i].fp_offset;
5816                         printf(": to %08jx", (uintmax_t) pc);
5817                         break;
5818                 case DW_CFA_advance_loc1:
5819                 case DW_CFA_advance_loc2:
5820                 case DW_CFA_advance_loc4:
5821                         pc += oplist[i].fp_offset;
5822                         printf(": %jd to %08jx", (intmax_t) oplist[i].fp_offset,
5823                             (uintmax_t) pc);
5824                         break;
5825                 case DW_CFA_def_cfa:
5826                         printf(": r%u (%s) ofs %ju", oplist[i].fp_register,
5827                             dwarf_regname(re, oplist[i].fp_register),
5828                             (uintmax_t) oplist[i].fp_offset);
5829                         break;
5830                 case DW_CFA_def_cfa_sf:
5831                         printf(": r%u (%s) ofs %jd", oplist[i].fp_register,
5832                             dwarf_regname(re, oplist[i].fp_register),
5833                             (intmax_t) (oplist[i].fp_offset * daf));
5834                         break;
5835                 case DW_CFA_def_cfa_register:
5836                         printf(": r%u (%s)", oplist[i].fp_register,
5837                             dwarf_regname(re, oplist[i].fp_register));
5838                         break;
5839                 case DW_CFA_def_cfa_offset:
5840                         printf(": %ju", (uintmax_t) oplist[i].fp_offset);
5841                         break;
5842                 case DW_CFA_def_cfa_offset_sf:
5843                         printf(": %jd", (intmax_t) (oplist[i].fp_offset * daf));
5844                         break;
5845                 default:
5846                         break;
5847                 }
5848                 putchar('\n');
5849         }
5850
5851         dwarf_dealloc(dbg, oplist, DW_DLA_FRAME_BLOCK);
5852 }
5853
5854 static char *
5855 get_regoff_str(struct readelf *re, Dwarf_Half reg, Dwarf_Addr off)
5856 {
5857         static char rs[16];
5858
5859         if (reg == DW_FRAME_UNDEFINED_VAL || reg == DW_FRAME_REG_INITIAL_VALUE)
5860                 snprintf(rs, sizeof(rs), "%c", 'u');
5861         else if (reg == DW_FRAME_CFA_COL)
5862                 snprintf(rs, sizeof(rs), "c%+jd", (intmax_t) off);
5863         else
5864                 snprintf(rs, sizeof(rs), "%s%+jd", dwarf_regname(re, reg),
5865                     (intmax_t) off);
5866
5867         return (rs);
5868 }
5869
5870 static int
5871 dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde, Dwarf_Addr pc,
5872     Dwarf_Unsigned func_len, Dwarf_Half cie_ra)
5873 {
5874         Dwarf_Regtable rt;
5875         Dwarf_Addr row_pc, end_pc, pre_pc, cur_pc;
5876         Dwarf_Error de;
5877         char *vec;
5878         int i;
5879
5880 #define BIT_SET(v, n) (v[(n)>>3] |= 1U << ((n) & 7))
5881 #define BIT_CLR(v, n) (v[(n)>>3] &= ~(1U << ((n) & 7)))
5882 #define BIT_ISSET(v, n) (v[(n)>>3] & (1U << ((n) & 7)))
5883 #define RT(x) rt.rules[(x)]
5884
5885         vec = calloc((DW_REG_TABLE_SIZE + 7) / 8, 1);
5886         if (vec == NULL)
5887                 err(EXIT_FAILURE, "calloc failed");
5888
5889         pre_pc = ~((Dwarf_Addr) 0);
5890         cur_pc = pc;
5891         end_pc = pc + func_len;
5892         for (; cur_pc < end_pc; cur_pc++) {
5893                 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5894                     &de) != DW_DLV_OK) {
5895                         warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5896                             dwarf_errmsg(de));
5897                         return (-1);
5898                 }
5899                 if (row_pc == pre_pc)
5900                         continue;
5901                 pre_pc = row_pc;
5902                 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5903                         if (rt.rules[i].dw_regnum != DW_FRAME_REG_INITIAL_VALUE)
5904                                 BIT_SET(vec, i);
5905                 }
5906         }
5907
5908         printf("   LOC   CFA      ");
5909         for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5910                 if (BIT_ISSET(vec, i)) {
5911                         if ((Dwarf_Half) i == cie_ra)
5912                                 printf("ra   ");
5913                         else
5914                                 printf("%-5s",
5915                                     dwarf_regname(re, (unsigned int) i));
5916                 }
5917         }
5918         putchar('\n');
5919
5920         pre_pc = ~((Dwarf_Addr) 0);
5921         cur_pc = pc;
5922         end_pc = pc + func_len;
5923         for (; cur_pc < end_pc; cur_pc++) {
5924                 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5925                     &de) != DW_DLV_OK) {
5926                         warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5927                             dwarf_errmsg(de));
5928                         return (-1);
5929                 }
5930                 if (row_pc == pre_pc)
5931                         continue;
5932                 pre_pc = row_pc;
5933                 printf("%08jx ", (uintmax_t) row_pc);
5934                 printf("%-8s ", get_regoff_str(re, RT(0).dw_regnum,
5935                     RT(0).dw_offset));
5936                 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5937                         if (BIT_ISSET(vec, i)) {
5938                                 printf("%-5s", get_regoff_str(re,
5939                                     RT(i).dw_regnum, RT(i).dw_offset));
5940                         }
5941                 }
5942                 putchar('\n');
5943         }
5944
5945         free(vec);
5946
5947         return (0);
5948
5949 #undef  BIT_SET
5950 #undef  BIT_CLR
5951 #undef  BIT_ISSET
5952 #undef  RT
5953 }
5954
5955 static void
5956 dump_dwarf_frame_section(struct readelf *re, struct section *s, int alt)
5957 {
5958         Dwarf_Cie *cie_list, cie, pre_cie;
5959         Dwarf_Fde *fde_list, fde;
5960         Dwarf_Off cie_offset, fde_offset;
5961         Dwarf_Unsigned cie_length, fde_instlen;
5962         Dwarf_Unsigned cie_caf, cie_daf, cie_instlen, func_len, fde_length;
5963         Dwarf_Signed cie_count, fde_count, cie_index;
5964         Dwarf_Addr low_pc;
5965         Dwarf_Half cie_ra;
5966         Dwarf_Small cie_version;
5967         Dwarf_Ptr fde_addr, fde_inst, cie_inst;
5968         char *cie_aug, c;
5969         int i, eh_frame;
5970         Dwarf_Error de;
5971
5972         printf("\nThe section %s contains:\n\n", s->name);
5973
5974         if (!strcmp(s->name, ".debug_frame")) {
5975                 eh_frame = 0;
5976                 if (dwarf_get_fde_list(re->dbg, &cie_list, &cie_count,
5977                     &fde_list, &fde_count, &de) != DW_DLV_OK) {
5978                         warnx("dwarf_get_fde_list failed: %s",
5979                             dwarf_errmsg(de));
5980                         return;
5981                 }
5982         } else if (!strcmp(s->name, ".eh_frame")) {
5983                 eh_frame = 1;
5984                 if (dwarf_get_fde_list_eh(re->dbg, &cie_list, &cie_count,
5985                     &fde_list, &fde_count, &de) != DW_DLV_OK) {
5986                         warnx("dwarf_get_fde_list_eh failed: %s",
5987                             dwarf_errmsg(de));
5988                         return;
5989                 }
5990         } else
5991                 return;
5992
5993         pre_cie = NULL;
5994         for (i = 0; i < fde_count; i++) {
5995                 if (dwarf_get_fde_n(fde_list, i, &fde, &de) != DW_DLV_OK) {
5996                         warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
5997                         continue;
5998                 }
5999                 if (dwarf_get_cie_of_fde(fde, &cie, &de) != DW_DLV_OK) {
6000                         warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
6001                         continue;
6002                 }
6003                 if (dwarf_get_fde_range(fde, &low_pc, &func_len, &fde_addr,
6004                     &fde_length, &cie_offset, &cie_index, &fde_offset,
6005                     &de) != DW_DLV_OK) {
6006                         warnx("dwarf_get_fde_range failed: %s",
6007                             dwarf_errmsg(de));
6008                         continue;
6009                 }
6010                 if (dwarf_get_fde_instr_bytes(fde, &fde_inst, &fde_instlen,
6011                     &de) != DW_DLV_OK) {
6012                         warnx("dwarf_get_fde_instr_bytes failed: %s",
6013                             dwarf_errmsg(de));
6014                         continue;
6015                 }
6016                 if (pre_cie == NULL || cie != pre_cie) {
6017                         pre_cie = cie;
6018                         if (dwarf_get_cie_info(cie, &cie_length, &cie_version,
6019                             &cie_aug, &cie_caf, &cie_daf, &cie_ra,
6020                             &cie_inst, &cie_instlen, &de) != DW_DLV_OK) {
6021                                 warnx("dwarf_get_cie_info failed: %s",
6022                                     dwarf_errmsg(de));
6023                                 continue;
6024                         }
6025                         printf("%08jx %08jx %8.8jx CIE",
6026                             (uintmax_t) cie_offset,
6027                             (uintmax_t) cie_length,
6028                             (uintmax_t) (eh_frame ? 0 : ~0U));
6029                         if (!alt) {
6030                                 putchar('\n');
6031                                 printf("  Version:\t\t\t%u\n", cie_version);
6032                                 printf("  Augmentation:\t\t\t\"");
6033                                 while ((c = *cie_aug++) != '\0')
6034                                         putchar(c);
6035                                 printf("\"\n");
6036                                 printf("  Code alignment factor:\t%ju\n",
6037                                     (uintmax_t) cie_caf);
6038                                 printf("  Data alignment factor:\t%jd\n",
6039                                     (intmax_t) cie_daf);
6040                                 printf("  Return address column:\t%ju\n",
6041                                     (uintmax_t) cie_ra);
6042                                 putchar('\n');
6043                                 dump_dwarf_frame_inst(re, cie, cie_inst,
6044                                     cie_instlen, cie_caf, cie_daf, 0,
6045                                     re->dbg);
6046                                 putchar('\n');
6047                         } else {
6048                                 printf(" \"");
6049                                 while ((c = *cie_aug++) != '\0')
6050                                         putchar(c);
6051                                 putchar('"');
6052                                 printf(" cf=%ju df=%jd ra=%ju\n",
6053                                     (uintmax_t) cie_caf,
6054                                     (uintmax_t) cie_daf,
6055                                     (uintmax_t) cie_ra);
6056                                 dump_dwarf_frame_regtable(re, fde, low_pc, 1,
6057                                     cie_ra);
6058                                 putchar('\n');
6059                         }
6060                 }
6061                 printf("%08jx %08jx %08jx FDE cie=%08jx pc=%08jx..%08jx\n",
6062                     (uintmax_t) fde_offset, (uintmax_t) fde_length,
6063                     (uintmax_t) cie_offset,
6064                     (uintmax_t) (eh_frame ? fde_offset + 4 - cie_offset :
6065                         cie_offset),
6066                     (uintmax_t) low_pc, (uintmax_t) (low_pc + func_len));
6067                 if (!alt)
6068                         dump_dwarf_frame_inst(re, cie, fde_inst, fde_instlen,
6069                             cie_caf, cie_daf, low_pc, re->dbg);
6070                 else
6071                         dump_dwarf_frame_regtable(re, fde, low_pc, func_len,
6072                             cie_ra);
6073                 putchar('\n');
6074         }
6075 }
6076
6077 static void
6078 dump_dwarf_frame(struct readelf *re, int alt)
6079 {
6080         struct section *s;
6081         int i;
6082
6083         (void) dwarf_set_frame_cfa_value(re->dbg, DW_FRAME_CFA_COL);
6084
6085         for (i = 0; (size_t) i < re->shnum; i++) {
6086                 s = &re->sl[i];
6087                 if (s->name != NULL && (!strcmp(s->name, ".debug_frame") ||
6088                     !strcmp(s->name, ".eh_frame")))
6089                         dump_dwarf_frame_section(re, s, alt);
6090         }
6091 }
6092
6093 static void
6094 dump_dwarf_str(struct readelf *re)
6095 {
6096         struct section *s;
6097         Elf_Data *d;
6098         unsigned char *p;
6099         int elferr, end, i, j;
6100
6101         printf("\nContents of section .debug_str:\n");
6102
6103         s = NULL;
6104         for (i = 0; (size_t) i < re->shnum; i++) {
6105                 s = &re->sl[i];
6106                 if (s->name != NULL && !strcmp(s->name, ".debug_str"))
6107                         break;
6108         }
6109         if ((size_t) i >= re->shnum)
6110                 return;
6111
6112         (void) elf_errno();
6113         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
6114                 elferr = elf_errno();
6115                 if (elferr != 0)
6116                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
6117                 return;
6118         }
6119         if (d->d_size <= 0)
6120                 return;
6121
6122         for (i = 0, p = d->d_buf; (size_t) i < d->d_size; i += 16) {
6123                 printf("  0x%08x", (unsigned int) i);
6124                 if ((size_t) i + 16 > d->d_size)
6125                         end = d->d_size;
6126                 else
6127                         end = i + 16;
6128                 for (j = i; j < i + 16; j++) {
6129                         if ((j - i) % 4 == 0)
6130                                 putchar(' ');
6131                         if (j >= end) {
6132                                 printf("  ");
6133                                 continue;
6134                         }
6135                         printf("%02x", (uint8_t) p[j]);
6136                 }
6137                 putchar(' ');
6138                 for (j = i; j < end; j++) {
6139                         if (isprint(p[j]))
6140                                 putchar(p[j]);
6141                         else if (p[j] == 0)
6142                                 putchar('.');
6143                         else
6144                                 putchar(' ');
6145                 }
6146                 putchar('\n');
6147         }
6148 }
6149
6150 static int
6151 loc_at_comparator(const void *la1, const void *la2)
6152 {
6153         const struct loc_at *left, *right;
6154
6155         left = (const struct loc_at *)la1;
6156         right = (const struct loc_at *)la2;
6157
6158         if (left->la_off > right->la_off)
6159                 return (1);
6160         else if (left->la_off < right->la_off)
6161                 return (-1);
6162         else
6163                 return (0);
6164 }
6165
6166 static void
6167 search_loclist_at(struct readelf *re, Dwarf_Die die, Dwarf_Unsigned lowpc,
6168     struct loc_at **la_list, size_t *la_list_len, size_t *la_list_cap)
6169 {
6170         struct loc_at *la;
6171         Dwarf_Attribute *attr_list;
6172         Dwarf_Die ret_die;
6173         Dwarf_Unsigned off;
6174         Dwarf_Off ref;
6175         Dwarf_Signed attr_count;
6176         Dwarf_Half attr, form;
6177         Dwarf_Bool is_info;
6178         Dwarf_Error de;
6179         int i, ret;
6180
6181         is_info = dwarf_get_die_infotypes_flag(die);
6182
6183         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
6184             DW_DLV_OK) {
6185                 if (ret == DW_DLV_ERROR)
6186                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
6187                 goto cont_search;
6188         }
6189         for (i = 0; i < attr_count; i++) {
6190                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
6191                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
6192                         continue;
6193                 }
6194                 if (attr != DW_AT_location &&
6195                     attr != DW_AT_string_length &&
6196                     attr != DW_AT_return_addr &&
6197                     attr != DW_AT_data_member_location &&
6198                     attr != DW_AT_frame_base &&
6199                     attr != DW_AT_segment &&
6200                     attr != DW_AT_static_link &&
6201                     attr != DW_AT_use_location &&
6202                     attr != DW_AT_vtable_elem_location)
6203                         continue;
6204                 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
6205                         warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
6206                         continue;
6207                 }
6208                 if (form == DW_FORM_data4 || form == DW_FORM_data8) {
6209                         if (dwarf_formudata(attr_list[i], &off, &de) !=
6210                             DW_DLV_OK) {
6211                                 warnx("dwarf_formudata failed: %s",
6212                                     dwarf_errmsg(de));
6213                                 continue;
6214                         }
6215                 } else if (form == DW_FORM_sec_offset) {
6216                         if (dwarf_global_formref(attr_list[i], &ref, &de) !=
6217                             DW_DLV_OK) {
6218                                 warnx("dwarf_global_formref failed: %s",
6219                                     dwarf_errmsg(de));
6220                                 continue;
6221                         }
6222                         off = ref;
6223                 } else
6224                         continue;
6225
6226                 if (*la_list_cap == *la_list_len) {
6227                         *la_list = realloc(*la_list,
6228                             *la_list_cap * 2 * sizeof(**la_list));
6229                         if (la_list == NULL)
6230                                 errx(EXIT_FAILURE, "realloc failed");
6231                         *la_list_cap *= 2;
6232                 }
6233                 la = &((*la_list)[*la_list_len]);
6234                 la->la_at = attr_list[i];
6235                 la->la_off = off;
6236                 la->la_lowpc = lowpc;
6237                 la->la_cu_psize = re->cu_psize;
6238                 la->la_cu_osize = re->cu_osize;
6239                 la->la_cu_ver = re->cu_ver;
6240                 (*la_list_len)++;
6241         }
6242
6243 cont_search:
6244         /* Search children. */
6245         ret = dwarf_child(die, &ret_die, &de);
6246         if (ret == DW_DLV_ERROR)
6247                 warnx("dwarf_child: %s", dwarf_errmsg(de));
6248         else if (ret == DW_DLV_OK)
6249                 search_loclist_at(re, ret_die, lowpc, la_list,
6250                     la_list_len, la_list_cap);
6251
6252         /* Search sibling. */
6253         ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
6254         if (ret == DW_DLV_ERROR)
6255                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
6256         else if (ret == DW_DLV_OK)
6257                 search_loclist_at(re, ret_die, lowpc, la_list,
6258                     la_list_len, la_list_cap);
6259 }
6260
6261 static void
6262 dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr)
6263 {
6264         const char *op_str;
6265         char unk_op[32];
6266         uint8_t *b, n;
6267         int i;
6268
6269         if (dwarf_get_OP_name(lr->lr_atom, &op_str) !=
6270             DW_DLV_OK) {
6271                 snprintf(unk_op, sizeof(unk_op),
6272                     "[Unknown OP: %#x]", lr->lr_atom);
6273                 op_str = unk_op;
6274         }
6275
6276         printf("%s", op_str);
6277
6278         switch (lr->lr_atom) {
6279         case DW_OP_reg0:
6280         case DW_OP_reg1:
6281         case DW_OP_reg2:
6282         case DW_OP_reg3:
6283         case DW_OP_reg4:
6284         case DW_OP_reg5:
6285         case DW_OP_reg6:
6286         case DW_OP_reg7:
6287         case DW_OP_reg8:
6288         case DW_OP_reg9:
6289         case DW_OP_reg10:
6290         case DW_OP_reg11:
6291         case DW_OP_reg12:
6292         case DW_OP_reg13:
6293         case DW_OP_reg14:
6294         case DW_OP_reg15:
6295         case DW_OP_reg16:
6296         case DW_OP_reg17:
6297         case DW_OP_reg18:
6298         case DW_OP_reg19:
6299         case DW_OP_reg20:
6300         case DW_OP_reg21:
6301         case DW_OP_reg22:
6302         case DW_OP_reg23:
6303         case DW_OP_reg24:
6304         case DW_OP_reg25:
6305         case DW_OP_reg26:
6306         case DW_OP_reg27:
6307         case DW_OP_reg28:
6308         case DW_OP_reg29:
6309         case DW_OP_reg30:
6310         case DW_OP_reg31:
6311                 printf(" (%s)", dwarf_regname(re, lr->lr_atom - DW_OP_reg0));
6312                 break;
6313
6314         case DW_OP_deref:
6315         case DW_OP_lit0:
6316         case DW_OP_lit1:
6317         case DW_OP_lit2:
6318         case DW_OP_lit3:
6319         case DW_OP_lit4:
6320         case DW_OP_lit5:
6321         case DW_OP_lit6:
6322         case DW_OP_lit7:
6323         case DW_OP_lit8:
6324         case DW_OP_lit9:
6325         case DW_OP_lit10:
6326         case DW_OP_lit11:
6327         case DW_OP_lit12:
6328         case DW_OP_lit13:
6329         case DW_OP_lit14:
6330         case DW_OP_lit15:
6331         case DW_OP_lit16:
6332         case DW_OP_lit17:
6333         case DW_OP_lit18:
6334         case DW_OP_lit19:
6335         case DW_OP_lit20:
6336         case DW_OP_lit21:
6337         case DW_OP_lit22:
6338         case DW_OP_lit23:
6339         case DW_OP_lit24:
6340         case DW_OP_lit25:
6341         case DW_OP_lit26:
6342         case DW_OP_lit27:
6343         case DW_OP_lit28:
6344         case DW_OP_lit29:
6345         case DW_OP_lit30:
6346         case DW_OP_lit31:
6347         case DW_OP_dup:
6348         case DW_OP_drop:
6349         case DW_OP_over:
6350         case DW_OP_swap:
6351         case DW_OP_rot:
6352         case DW_OP_xderef:
6353         case DW_OP_abs:
6354         case DW_OP_and:
6355         case DW_OP_div:
6356         case DW_OP_minus:
6357         case DW_OP_mod:
6358         case DW_OP_mul:
6359         case DW_OP_neg:
6360         case DW_OP_not:
6361         case DW_OP_or:
6362         case DW_OP_plus:
6363         case DW_OP_shl:
6364         case DW_OP_shr:
6365         case DW_OP_shra:
6366         case DW_OP_xor:
6367         case DW_OP_eq:
6368         case DW_OP_ge:
6369         case DW_OP_gt:
6370         case DW_OP_le:
6371         case DW_OP_lt:
6372         case DW_OP_ne:
6373         case DW_OP_nop:
6374         case DW_OP_push_object_address:
6375         case DW_OP_form_tls_address:
6376         case DW_OP_call_frame_cfa:
6377         case DW_OP_stack_value:
6378         case DW_OP_GNU_push_tls_address:
6379         case DW_OP_GNU_uninit:
6380                 break;
6381
6382         case DW_OP_const1u:
6383         case DW_OP_pick:
6384         case DW_OP_deref_size:
6385         case DW_OP_xderef_size:
6386         case DW_OP_const2u:
6387         case DW_OP_bra:
6388         case DW_OP_skip:
6389         case DW_OP_const4u:
6390         case DW_OP_const8u:
6391         case DW_OP_constu:
6392         case DW_OP_plus_uconst:
6393         case DW_OP_regx:
6394         case DW_OP_piece:
6395                 printf(": %ju", (uintmax_t)
6396                     lr->lr_number);
6397                 break;
6398
6399         case DW_OP_const1s:
6400         case DW_OP_const2s:
6401         case DW_OP_const4s:
6402         case DW_OP_const8s:
6403         case DW_OP_consts:
6404                 printf(": %jd", (intmax_t)
6405                     lr->lr_number);
6406                 break;
6407
6408         case DW_OP_breg0:
6409         case DW_OP_breg1:
6410         case DW_OP_breg2:
6411         case DW_OP_breg3:
6412         case DW_OP_breg4:
6413         case DW_OP_breg5:
6414         case DW_OP_breg6:
6415         case DW_OP_breg7:
6416         case DW_OP_breg8:
6417         case DW_OP_breg9:
6418         case DW_OP_breg10:
6419         case DW_OP_breg11:
6420         case DW_OP_breg12:
6421         case DW_OP_breg13:
6422         case DW_OP_breg14:
6423         case DW_OP_breg15:
6424         case DW_OP_breg16:
6425         case DW_OP_breg17:
6426         case DW_OP_breg18:
6427         case DW_OP_breg19:
6428         case DW_OP_breg20:
6429         case DW_OP_breg21:
6430         case DW_OP_breg22:
6431         case DW_OP_breg23:
6432         case DW_OP_breg24:
6433         case DW_OP_breg25:
6434         case DW_OP_breg26:
6435         case DW_OP_breg27:
6436         case DW_OP_breg28:
6437         case DW_OP_breg29:
6438         case DW_OP_breg30:
6439         case DW_OP_breg31:
6440                 printf(" (%s): %jd",
6441                     dwarf_regname(re, lr->lr_atom - DW_OP_breg0),
6442                     (intmax_t) lr->lr_number);
6443                 break;
6444
6445         case DW_OP_fbreg:
6446                 printf(": %jd", (intmax_t)
6447                     lr->lr_number);
6448                 break;
6449
6450         case DW_OP_bregx:
6451                 printf(": %ju (%s) %jd",
6452                     (uintmax_t) lr->lr_number,
6453                     dwarf_regname(re, (unsigned int) lr->lr_number),
6454                     (intmax_t) lr->lr_number2);
6455                 break;
6456
6457         case DW_OP_addr:
6458         case DW_OP_GNU_encoded_addr:
6459                 printf(": %#jx", (uintmax_t)
6460                     lr->lr_number);
6461                 break;
6462
6463         case DW_OP_GNU_implicit_pointer:
6464                 printf(": <0x%jx> %jd", (uintmax_t) lr->lr_number,
6465                     (intmax_t) lr->lr_number2);
6466                 break;
6467
6468         case DW_OP_implicit_value:
6469                 printf(": %ju byte block:", (uintmax_t) lr->lr_number);
6470                 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6471                 for (i = 0; (Dwarf_Unsigned) i < lr->lr_number; i++)
6472                         printf(" %x", b[i]);
6473                 break;
6474
6475         case DW_OP_GNU_entry_value:
6476                 printf(": (");
6477                 dump_dwarf_block(re, (uint8_t *)(uintptr_t) lr->lr_number2,
6478                     lr->lr_number);
6479                 putchar(')');
6480                 break;
6481
6482         case DW_OP_GNU_const_type:
6483                 printf(": <0x%jx> ", (uintmax_t) lr->lr_number);
6484                 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6485                 n = *b;
6486                 for (i = 1; (uint8_t) i < n; i++)
6487                         printf(" %x", b[i]);
6488                 break;
6489
6490         case DW_OP_GNU_regval_type:
6491                 printf(": %ju (%s) <0x%jx>", (uintmax_t) lr->lr_number,
6492                     dwarf_regname(re, (unsigned int) lr->lr_number),
6493                     (uintmax_t) lr->lr_number2);
6494                 break;
6495
6496         case DW_OP_GNU_convert:
6497         case DW_OP_GNU_deref_type:
6498         case DW_OP_GNU_parameter_ref:
6499         case DW_OP_GNU_reinterpret:
6500                 printf(": <0x%jx>", (uintmax_t) lr->lr_number);
6501                 break;
6502
6503         default:
6504                 break;
6505         }
6506 }
6507
6508 static void
6509 dump_dwarf_block(struct readelf *re, uint8_t *b, Dwarf_Unsigned len)
6510 {
6511         Dwarf_Locdesc *llbuf;
6512         Dwarf_Signed lcnt;
6513         Dwarf_Error de;
6514         int i;
6515
6516         if (dwarf_loclist_from_expr_b(re->dbg, b, len, re->cu_psize,
6517             re->cu_osize, re->cu_ver, &llbuf, &lcnt, &de) != DW_DLV_OK) {
6518                 warnx("dwarf_loclist_form_expr_b: %s", dwarf_errmsg(de));
6519                 return;
6520         }
6521
6522         for (i = 0; (Dwarf_Half) i < llbuf->ld_cents; i++) {
6523                 dump_dwarf_loc(re, &llbuf->ld_s[i]);
6524                 if (i < llbuf->ld_cents - 1)
6525                         printf("; ");
6526         }
6527
6528         dwarf_dealloc(re->dbg, llbuf->ld_s, DW_DLA_LOC_BLOCK);
6529         dwarf_dealloc(re->dbg, llbuf, DW_DLA_LOCDESC);
6530 }
6531
6532 static void
6533 dump_dwarf_loclist(struct readelf *re)
6534 {
6535         Dwarf_Die die;
6536         Dwarf_Locdesc **llbuf;
6537         Dwarf_Unsigned lowpc;
6538         Dwarf_Signed lcnt;
6539         Dwarf_Half tag, version, pointer_size, off_size;
6540         Dwarf_Error de;
6541         struct loc_at *la_list, *left, *right, *la;
6542         size_t la_list_len, la_list_cap;
6543         unsigned int duplicates, k;
6544         int i, j, ret, has_content;
6545
6546         la_list_len = 0;
6547         la_list_cap = 200;
6548         if ((la_list = calloc(la_list_cap, sizeof(struct loc_at))) == NULL)
6549                 errx(EXIT_FAILURE, "calloc failed");
6550         /* Search .debug_info section. */
6551         while ((ret = dwarf_next_cu_header_b(re->dbg, NULL, &version, NULL,
6552             &pointer_size, &off_size, NULL, NULL, &de)) == DW_DLV_OK) {
6553                 set_cu_context(re, pointer_size, off_size, version);
6554                 die = NULL;
6555                 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
6556                         continue;
6557                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6558                         warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
6559                         continue;
6560                 }
6561                 /* XXX: What about DW_TAG_partial_unit? */
6562                 lowpc = 0;
6563                 if (tag == DW_TAG_compile_unit) {
6564                         if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6565                             &lowpc, &de) != DW_DLV_OK)
6566                                 lowpc = 0;
6567                 }
6568
6569                 /* Search attributes for reference to .debug_loc section. */
6570                 search_loclist_at(re, die, lowpc, &la_list,
6571                     &la_list_len, &la_list_cap);
6572         }
6573         if (ret == DW_DLV_ERROR)
6574                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6575
6576         /* Search .debug_types section. */
6577         do {
6578                 while ((ret = dwarf_next_cu_header_c(re->dbg, 0, NULL,
6579                     &version, NULL, &pointer_size, &off_size, NULL, NULL,
6580                     NULL, NULL, &de)) == DW_DLV_OK) {
6581                         set_cu_context(re, pointer_size, off_size, version);
6582                         die = NULL;
6583                         if (dwarf_siblingof(re->dbg, die, &die, &de) !=
6584                             DW_DLV_OK)
6585                                 continue;
6586                         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6587                                 warnx("dwarf_tag failed: %s",
6588                                     dwarf_errmsg(de));
6589                                 continue;
6590                         }
6591
6592                         lowpc = 0;
6593                         if (tag == DW_TAG_type_unit) {
6594                                 if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6595                                     &lowpc, &de) != DW_DLV_OK)
6596                                         lowpc = 0;
6597                         }
6598
6599                         /*
6600                          * Search attributes for reference to .debug_loc
6601                          * section.
6602                          */
6603                         search_loclist_at(re, die, lowpc, &la_list,
6604                             &la_list_len, &la_list_cap);
6605                 }
6606                 if (ret == DW_DLV_ERROR)
6607                         warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6608         } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
6609
6610         if (la_list_len == 0) {
6611                 free(la_list);
6612                 return;
6613         }
6614
6615         /* Sort la_list using loc_at_comparator. */
6616         qsort(la_list, la_list_len, sizeof(struct loc_at), loc_at_comparator);
6617
6618         /* Get rid of the duplicates in la_list. */
6619         duplicates = 0;
6620         for (k = 1; k < la_list_len; ++k) {
6621                 left = &la_list[k - 1 - duplicates];
6622                 right = &la_list[k];
6623
6624                 if (left->la_off == right->la_off)
6625                         duplicates++;
6626                 else
6627                         la_list[k - duplicates] = *right;
6628         }
6629         la_list_len -= duplicates;
6630
6631         has_content = 0;
6632         for (k = 0; k < la_list_len; ++k) {
6633                 la = &la_list[k];
6634                 if ((ret = dwarf_loclist_n(la->la_at, &llbuf, &lcnt, &de)) !=
6635                     DW_DLV_OK) {
6636                         if (ret != DW_DLV_NO_ENTRY)
6637                                 warnx("dwarf_loclist_n failed: %s",
6638                                     dwarf_errmsg(de));
6639                         continue;
6640                 }
6641                 if (!has_content) {
6642                         has_content = 1;
6643                         printf("\nContents of section .debug_loc:\n");
6644                         printf("    Offset   Begin    End      Expression\n");
6645                 }
6646                 set_cu_context(re, la->la_cu_psize, la->la_cu_osize,
6647                     la->la_cu_ver);
6648                 for (i = 0; i < lcnt; i++) {
6649                         printf("    %8.8jx ", (uintmax_t) la->la_off);
6650                         if (llbuf[i]->ld_lopc == 0 && llbuf[i]->ld_hipc == 0) {
6651                                 printf("<End of list>\n");
6652                                 continue;
6653                         }
6654
6655                         /* TODO: handle base selection entry. */
6656
6657                         printf("%8.8jx %8.8jx ",
6658                             (uintmax_t) (la->la_lowpc + llbuf[i]->ld_lopc),
6659                             (uintmax_t) (la->la_lowpc + llbuf[i]->ld_hipc));
6660
6661                         putchar('(');
6662                         for (j = 0; (Dwarf_Half) j < llbuf[i]->ld_cents; j++) {
6663                                 dump_dwarf_loc(re, &llbuf[i]->ld_s[j]);
6664                                 if (j < llbuf[i]->ld_cents - 1)
6665                                         printf("; ");
6666                         }
6667                         putchar(')');
6668
6669                         if (llbuf[i]->ld_lopc == llbuf[i]->ld_hipc)
6670                                 printf(" (start == end)");
6671                         putchar('\n');
6672                 }
6673                 for (i = 0; i < lcnt; i++) {
6674                         dwarf_dealloc(re->dbg, llbuf[i]->ld_s,
6675                             DW_DLA_LOC_BLOCK);
6676                         dwarf_dealloc(re->dbg, llbuf[i], DW_DLA_LOCDESC);
6677                 }
6678                 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LIST);
6679         }
6680
6681         if (!has_content)
6682                 printf("\nSection '.debug_loc' has no debugging data.\n");
6683
6684         free(la_list);
6685 }
6686
6687 /*
6688  * Retrieve a string using string table section index and the string offset.
6689  */
6690 static const char*
6691 get_string(struct readelf *re, int strtab, size_t off)
6692 {
6693         const char *name;
6694
6695         if ((name = elf_strptr(re->elf, strtab, off)) == NULL)
6696                 return ("");
6697
6698         return (name);
6699 }
6700
6701 /*
6702  * Retrieve the name of a symbol using the section index of the symbol
6703  * table and the index of the symbol within that table.
6704  */
6705 static const char *
6706 get_symbol_name(struct readelf *re, int symtab, int i)
6707 {
6708         struct section  *s;
6709         const char      *name;
6710         GElf_Sym         sym;
6711         Elf_Data        *data;
6712         int              elferr;
6713
6714         s = &re->sl[symtab];
6715         if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6716                 return ("");
6717         (void) elf_errno();
6718         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6719                 elferr = elf_errno();
6720                 if (elferr != 0)
6721                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6722                 return ("");
6723         }
6724         if (gelf_getsym(data, i, &sym) != &sym)
6725                 return ("");
6726         /* Return section name for STT_SECTION symbol. */
6727         if (GELF_ST_TYPE(sym.st_info) == STT_SECTION) {
6728                 if (sym.st_shndx < re->shnum &&
6729                     re->sl[sym.st_shndx].name != NULL)
6730                         return (re->sl[sym.st_shndx].name);
6731                 return ("");
6732         }
6733         if (s->link >= re->shnum ||
6734             (name = elf_strptr(re->elf, s->link, sym.st_name)) == NULL)
6735                 return ("");
6736
6737         return (name);
6738 }
6739
6740 static uint64_t
6741 get_symbol_value(struct readelf *re, int symtab, int i)
6742 {
6743         struct section  *s;
6744         GElf_Sym         sym;
6745         Elf_Data        *data;
6746         int              elferr;
6747
6748         s = &re->sl[symtab];
6749         if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6750                 return (0);
6751         (void) elf_errno();
6752         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6753                 elferr = elf_errno();
6754                 if (elferr != 0)
6755                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6756                 return (0);
6757         }
6758         if (gelf_getsym(data, i, &sym) != &sym)
6759                 return (0);
6760
6761         return (sym.st_value);
6762 }
6763
6764 static void
6765 hex_dump(struct readelf *re)
6766 {
6767         struct section *s;
6768         Elf_Data *d;
6769         uint8_t *buf;
6770         size_t sz, nbytes;
6771         uint64_t addr;
6772         int elferr, i, j;
6773
6774         for (i = 1; (size_t) i < re->shnum; i++) {
6775                 s = &re->sl[i];
6776                 if (find_dumpop(re, (size_t) i, s->name, HEX_DUMP, -1) == NULL)
6777                         continue;
6778                 (void) elf_errno();
6779                 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6780                     (d = elf_rawdata(s->scn, NULL)) == NULL) {
6781                         elferr = elf_errno();
6782                         if (elferr != 0)
6783                                 warnx("elf_getdata failed: %s",
6784                                     elf_errmsg(elferr));
6785                         continue;
6786                 }
6787                 (void) elf_errno();
6788                 if (d->d_size <= 0 || d->d_buf == NULL) {
6789                         printf("\nSection '%s' has no data to dump.\n",
6790                             s->name);
6791                         continue;
6792                 }
6793                 buf = d->d_buf;
6794                 sz = d->d_size;
6795                 addr = s->addr;
6796                 printf("\nHex dump of section '%s':\n", s->name);
6797                 while (sz > 0) {
6798                         printf("  0x%8.8jx ", (uintmax_t)addr);
6799                         nbytes = sz > 16? 16 : sz;
6800                         for (j = 0; j < 16; j++) {
6801                                 if ((size_t)j < nbytes)
6802                                         printf("%2.2x", buf[j]);
6803                                 else
6804                                         printf("  ");
6805                                 if ((j & 3) == 3)
6806                                         printf(" ");
6807                         }
6808                         for (j = 0; (size_t)j < nbytes; j++) {
6809                                 if (isprint(buf[j]))
6810                                         printf("%c", buf[j]);
6811                                 else
6812                                         printf(".");
6813                         }
6814                         printf("\n");
6815                         buf += nbytes;
6816                         addr += nbytes;
6817                         sz -= nbytes;
6818                 }
6819         }
6820 }
6821
6822 static void
6823 str_dump(struct readelf *re)
6824 {
6825         struct section *s;
6826         Elf_Data *d;
6827         unsigned char *start, *end, *buf_end;
6828         unsigned int len;
6829         int i, j, elferr, found;
6830
6831         for (i = 1; (size_t) i < re->shnum; i++) {
6832                 s = &re->sl[i];
6833                 if (find_dumpop(re, (size_t) i, s->name, STR_DUMP, -1) == NULL)
6834                         continue;
6835                 (void) elf_errno();
6836                 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6837                     (d = elf_rawdata(s->scn, NULL)) == NULL) {
6838                         elferr = elf_errno();
6839                         if (elferr != 0)
6840                                 warnx("elf_getdata failed: %s",
6841                                     elf_errmsg(elferr));
6842                         continue;
6843                 }
6844                 (void) elf_errno();
6845                 if (d->d_size <= 0 || d->d_buf == NULL) {
6846                         printf("\nSection '%s' has no data to dump.\n",
6847                             s->name);
6848                         continue;
6849                 }
6850                 buf_end = (unsigned char *) d->d_buf + d->d_size;
6851                 start = (unsigned char *) d->d_buf;
6852                 found = 0;
6853                 printf("\nString dump of section '%s':\n", s->name);
6854                 for (;;) {
6855                         while (start < buf_end && !isprint(*start))
6856                                 start++;
6857                         if (start >= buf_end)
6858                                 break;
6859                         end = start + 1;
6860                         while (end < buf_end && isprint(*end))
6861                                 end++;
6862                         printf("  [%6lx]  ",
6863                             (long) (start - (unsigned char *) d->d_buf));
6864                         len = end - start;
6865                         for (j = 0; (unsigned int) j < len; j++)
6866                                 putchar(start[j]);
6867                         putchar('\n');
6868                         found = 1;
6869                         if (end >= buf_end)
6870                                 break;
6871                         start = end + 1;
6872                 }
6873                 if (!found)
6874                         printf("  No strings found in this section.");
6875                 putchar('\n');
6876         }
6877 }
6878
6879 static void
6880 load_sections(struct readelf *re)
6881 {
6882         struct section  *s;
6883         const char      *name;
6884         Elf_Scn         *scn;
6885         GElf_Shdr        sh;
6886         size_t           shstrndx, ndx;
6887         int              elferr;
6888
6889         /* Allocate storage for internal section list. */
6890         if (!elf_getshnum(re->elf, &re->shnum)) {
6891                 warnx("elf_getshnum failed: %s", elf_errmsg(-1));
6892                 return;
6893         }
6894         if (re->sl != NULL)
6895                 free(re->sl);
6896         if ((re->sl = calloc(re->shnum, sizeof(*re->sl))) == NULL)
6897                 err(EXIT_FAILURE, "calloc failed");
6898
6899         /* Get the index of .shstrtab section. */
6900         if (!elf_getshstrndx(re->elf, &shstrndx)) {
6901                 warnx("elf_getshstrndx failed: %s", elf_errmsg(-1));
6902                 return;
6903         }
6904
6905         if ((scn = elf_getscn(re->elf, 0)) == NULL)
6906                 return;
6907
6908         (void) elf_errno();
6909         do {
6910                 if (gelf_getshdr(scn, &sh) == NULL) {
6911                         warnx("gelf_getshdr failed: %s", elf_errmsg(-1));
6912                         (void) elf_errno();
6913                         continue;
6914                 }
6915                 if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) {
6916                         (void) elf_errno();
6917                         name = "<no-name>";
6918                 }
6919                 if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) {
6920                         if ((elferr = elf_errno()) != 0) {
6921                                 warnx("elf_ndxscn failed: %s",
6922                                     elf_errmsg(elferr));
6923                                 continue;
6924                         }
6925                 }
6926                 if (ndx >= re->shnum) {
6927                         warnx("section index of '%s' out of range", name);
6928                         continue;
6929                 }
6930                 if (sh.sh_link >= re->shnum)
6931                         warnx("section link %llu of '%s' out of range",
6932                             (unsigned long long)sh.sh_link, name);
6933                 s = &re->sl[ndx];
6934                 s->name = name;
6935                 s->scn = scn;
6936                 s->off = sh.sh_offset;
6937                 s->sz = sh.sh_size;
6938                 s->entsize = sh.sh_entsize;
6939                 s->align = sh.sh_addralign;
6940                 s->type = sh.sh_type;
6941                 s->flags = sh.sh_flags;
6942                 s->addr = sh.sh_addr;
6943                 s->link = sh.sh_link;
6944                 s->info = sh.sh_info;
6945         } while ((scn = elf_nextscn(re->elf, scn)) != NULL);
6946         elferr = elf_errno();
6947         if (elferr != 0)
6948                 warnx("elf_nextscn failed: %s", elf_errmsg(elferr));
6949 }
6950
6951 static void
6952 unload_sections(struct readelf *re)
6953 {
6954
6955         if (re->sl != NULL) {
6956                 free(re->sl);
6957                 re->sl = NULL;
6958         }
6959         re->shnum = 0;
6960         re->vd_s = NULL;
6961         re->vn_s = NULL;
6962         re->vs_s = NULL;
6963         re->vs = NULL;
6964         re->vs_sz = 0;
6965         if (re->ver != NULL) {
6966                 free(re->ver);
6967                 re->ver = NULL;
6968                 re->ver_sz = 0;
6969         }
6970 }
6971
6972 static void
6973 dump_elf(struct readelf *re)
6974 {
6975
6976         /* Fetch ELF header. No need to continue if it fails. */
6977         if (gelf_getehdr(re->elf, &re->ehdr) == NULL) {
6978                 warnx("gelf_getehdr failed: %s", elf_errmsg(-1));
6979                 return;
6980         }
6981         if ((re->ec = gelf_getclass(re->elf)) == ELFCLASSNONE) {
6982                 warnx("gelf_getclass failed: %s", elf_errmsg(-1));
6983                 return;
6984         }
6985         if (re->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) {
6986                 re->dw_read = _read_msb;
6987                 re->dw_decode = _decode_msb;
6988         } else {
6989                 re->dw_read = _read_lsb;
6990                 re->dw_decode = _decode_lsb;
6991         }
6992
6993         if (re->options & ~RE_H)
6994                 load_sections(re);
6995         if ((re->options & RE_VV) || (re->options & RE_S))
6996                 search_ver(re);
6997         if (re->options & RE_H)
6998                 dump_ehdr(re);
6999         if (re->options & RE_L)
7000                 dump_phdr(re);
7001         if (re->options & RE_SS)
7002                 dump_shdr(re);
7003         if (re->options & RE_G)
7004                 dump_section_groups(re);
7005         if (re->options & RE_D)
7006                 dump_dynamic(re);
7007         if (re->options & RE_R)
7008                 dump_reloc(re);
7009         if (re->options & RE_S)
7010                 dump_symtabs(re);
7011         if (re->options & RE_N)
7012                 dump_notes(re);
7013         if (re->options & RE_II)
7014                 dump_hash(re);
7015         if (re->options & RE_X)
7016                 hex_dump(re);
7017         if (re->options & RE_P)
7018                 str_dump(re);
7019         if (re->options & RE_VV)
7020                 dump_ver(re);
7021         if (re->options & RE_AA)
7022                 dump_arch_specific_info(re);
7023         if (re->options & RE_W)
7024                 dump_dwarf(re);
7025         if (re->options & ~RE_H)
7026                 unload_sections(re);
7027 }
7028
7029 static void
7030 dump_dwarf(struct readelf *re)
7031 {
7032         Dwarf_Error de;
7033         int error;
7034
7035         if (dwarf_elf_init(re->elf, DW_DLC_READ, NULL, NULL, &re->dbg, &de)) {
7036                 if ((error = dwarf_errno(de)) != DW_DLE_DEBUG_INFO_NULL)
7037                         errx(EXIT_FAILURE, "dwarf_elf_init failed: %s",
7038                             dwarf_errmsg(de));
7039                 return;
7040         }
7041
7042         if (re->dop & DW_A)
7043                 dump_dwarf_abbrev(re);
7044         if (re->dop & DW_L)
7045                 dump_dwarf_line(re);
7046         if (re->dop & DW_LL)
7047                 dump_dwarf_line_decoded(re);
7048         if (re->dop & DW_I) {
7049                 dump_dwarf_info(re, 0);
7050                 dump_dwarf_info(re, 1);
7051         }
7052         if (re->dop & DW_P)
7053                 dump_dwarf_pubnames(re);
7054         if (re->dop & DW_R)
7055                 dump_dwarf_aranges(re);
7056         if (re->dop & DW_RR)
7057                 dump_dwarf_ranges(re);
7058         if (re->dop & DW_M)
7059                 dump_dwarf_macinfo(re);
7060         if (re->dop & DW_F)
7061                 dump_dwarf_frame(re, 0);
7062         else if (re->dop & DW_FF)
7063                 dump_dwarf_frame(re, 1);
7064         if (re->dop & DW_S)
7065                 dump_dwarf_str(re);
7066         if (re->dop & DW_O)
7067                 dump_dwarf_loclist(re);
7068
7069         dwarf_finish(re->dbg, &de);
7070 }
7071
7072 static void
7073 dump_ar(struct readelf *re, int fd)
7074 {
7075         Elf_Arsym *arsym;
7076         Elf_Arhdr *arhdr;
7077         Elf_Cmd cmd;
7078         Elf *e;
7079         size_t sz;
7080         off_t off;
7081         int i;
7082
7083         re->ar = re->elf;
7084
7085         if (re->options & RE_C) {
7086                 if ((arsym = elf_getarsym(re->ar, &sz)) == NULL) {
7087                         warnx("elf_getarsym() failed: %s", elf_errmsg(-1));
7088                         goto process_members;
7089                 }
7090                 printf("Index of archive %s: (%ju entries)\n", re->filename,
7091                     (uintmax_t) sz - 1);
7092                 off = 0;
7093                 for (i = 0; (size_t) i < sz; i++) {
7094                         if (arsym[i].as_name == NULL)
7095                                 break;
7096                         if (arsym[i].as_off != off) {
7097                                 off = arsym[i].as_off;
7098                                 if (elf_rand(re->ar, off) != off) {
7099                                         warnx("elf_rand() failed: %s",
7100                                             elf_errmsg(-1));
7101                                         continue;
7102                                 }
7103                                 if ((e = elf_begin(fd, ELF_C_READ, re->ar)) ==
7104                                     NULL) {
7105                                         warnx("elf_begin() failed: %s",
7106                                             elf_errmsg(-1));
7107                                         continue;
7108                                 }
7109                                 if ((arhdr = elf_getarhdr(e)) == NULL) {
7110                                         warnx("elf_getarhdr() failed: %s",
7111                                             elf_errmsg(-1));
7112                                         elf_end(e);
7113                                         continue;
7114                                 }
7115                                 printf("Binary %s(%s) contains:\n",
7116                                     re->filename, arhdr->ar_name);
7117                         }
7118                         printf("\t%s\n", arsym[i].as_name);
7119                 }
7120                 if (elf_rand(re->ar, SARMAG) != SARMAG) {
7121                         warnx("elf_rand() failed: %s", elf_errmsg(-1));
7122                         return;
7123                 }
7124         }
7125
7126 process_members:
7127
7128         if ((re->options & ~RE_C) == 0)
7129                 return;
7130
7131         cmd = ELF_C_READ;
7132         while ((re->elf = elf_begin(fd, cmd, re->ar)) != NULL) {
7133                 if ((arhdr = elf_getarhdr(re->elf)) == NULL) {
7134                         warnx("elf_getarhdr() failed: %s", elf_errmsg(-1));
7135                         goto next_member;
7136                 }
7137                 if (strcmp(arhdr->ar_name, "/") == 0 ||
7138                     strcmp(arhdr->ar_name, "//") == 0 ||
7139                     strcmp(arhdr->ar_name, "__.SYMDEF") == 0)
7140                         goto next_member;
7141                 printf("\nFile: %s(%s)\n", re->filename, arhdr->ar_name);
7142                 dump_elf(re);
7143
7144         next_member:
7145                 cmd = elf_next(re->elf);
7146                 elf_end(re->elf);
7147         }
7148         re->elf = re->ar;
7149 }
7150
7151 static void
7152 dump_object(struct readelf *re)
7153 {
7154         int fd;
7155
7156         if ((fd = open(re->filename, O_RDONLY)) == -1) {
7157                 warn("open %s failed", re->filename);
7158                 return;
7159         }
7160
7161         if ((re->flags & DISPLAY_FILENAME) != 0)
7162                 printf("\nFile: %s\n", re->filename);
7163
7164         if ((re->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
7165                 warnx("elf_begin() failed: %s", elf_errmsg(-1));
7166                 return;
7167         }
7168
7169         switch (elf_kind(re->elf)) {
7170         case ELF_K_NONE:
7171                 warnx("Not an ELF file.");
7172                 return;
7173         case ELF_K_ELF:
7174                 dump_elf(re);
7175                 break;
7176         case ELF_K_AR:
7177                 dump_ar(re, fd);
7178                 break;
7179         default:
7180                 warnx("Internal: libelf returned unknown elf kind.");
7181                 return;
7182         }
7183
7184         elf_end(re->elf);
7185 }
7186
7187 static void
7188 add_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
7189 {
7190         struct dumpop *d;
7191
7192         if ((d = find_dumpop(re, si, sn, -1, t)) == NULL) {
7193                 if ((d = calloc(1, sizeof(*d))) == NULL)
7194                         err(EXIT_FAILURE, "calloc failed");
7195                 if (t == DUMP_BY_INDEX)
7196                         d->u.si = si;
7197                 else
7198                         d->u.sn = sn;
7199                 d->type = t;
7200                 d->op = op;
7201                 STAILQ_INSERT_TAIL(&re->v_dumpop, d, dumpop_list);
7202         } else
7203                 d->op |= op;
7204 }
7205
7206 static struct dumpop *
7207 find_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
7208 {
7209         struct dumpop *d;
7210
7211         STAILQ_FOREACH(d, &re->v_dumpop, dumpop_list) {
7212                 if ((op == -1 || op & d->op) &&
7213                     (t == -1 || (unsigned) t == d->type)) {
7214                         if ((d->type == DUMP_BY_INDEX && d->u.si == si) ||
7215                             (d->type == DUMP_BY_NAME && !strcmp(d->u.sn, sn)))
7216                                 return (d);
7217                 }
7218         }
7219
7220         return (NULL);
7221 }
7222
7223 static struct {
7224         const char *ln;
7225         char sn;
7226         int value;
7227 } dwarf_op[] = {
7228         {"rawline", 'l', DW_L},
7229         {"decodedline", 'L', DW_LL},
7230         {"info", 'i', DW_I},
7231         {"abbrev", 'a', DW_A},
7232         {"pubnames", 'p', DW_P},
7233         {"aranges", 'r', DW_R},
7234         {"ranges", 'r', DW_R},
7235         {"Ranges", 'R', DW_RR},
7236         {"macro", 'm', DW_M},
7237         {"frames", 'f', DW_F},
7238         {"frames-interp", 'F', DW_FF},
7239         {"str", 's', DW_S},
7240         {"loc", 'o', DW_O},
7241         {NULL, 0, 0}
7242 };
7243
7244 static void
7245 parse_dwarf_op_short(struct readelf *re, const char *op)
7246 {
7247         int i;
7248
7249         if (op == NULL) {
7250                 re->dop |= DW_DEFAULT_OPTIONS;
7251                 return;
7252         }
7253
7254         for (; *op != '\0'; op++) {
7255                 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7256                         if (dwarf_op[i].sn == *op) {
7257                                 re->dop |= dwarf_op[i].value;
7258                                 break;
7259                         }
7260                 }
7261         }
7262 }
7263
7264 static void
7265 parse_dwarf_op_long(struct readelf *re, const char *op)
7266 {
7267         char *p, *token, *bp;
7268         int i;
7269
7270         if (op == NULL) {
7271                 re->dop |= DW_DEFAULT_OPTIONS;
7272                 return;
7273         }
7274
7275         if ((p = strdup(op)) == NULL)
7276                 err(EXIT_FAILURE, "strdup failed");
7277         bp = p;
7278
7279         while ((token = strsep(&p, ",")) != NULL) {
7280                 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7281                         if (!strcmp(token, dwarf_op[i].ln)) {
7282                                 re->dop |= dwarf_op[i].value;
7283                                 break;
7284                         }
7285                 }
7286         }
7287
7288         free(bp);
7289 }
7290
7291 static uint64_t
7292 _read_lsb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7293 {
7294         uint64_t ret;
7295         uint8_t *src;
7296
7297         src = (uint8_t *) d->d_buf + *offsetp;
7298
7299         ret = 0;
7300         switch (bytes_to_read) {
7301         case 8:
7302                 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7303                 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7304                 /* FALLTHROUGH */
7305         case 4:
7306                 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7307                 /* FALLTHROUGH */
7308         case 2:
7309                 ret |= ((uint64_t) src[1]) << 8;
7310                 /* FALLTHROUGH */
7311         case 1:
7312                 ret |= src[0];
7313                 break;
7314         default:
7315                 return (0);
7316         }
7317
7318         *offsetp += bytes_to_read;
7319
7320         return (ret);
7321 }
7322
7323 static uint64_t
7324 _read_msb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7325 {
7326         uint64_t ret;
7327         uint8_t *src;
7328
7329         src = (uint8_t *) d->d_buf + *offsetp;
7330
7331         switch (bytes_to_read) {
7332         case 1:
7333                 ret = src[0];
7334                 break;
7335         case 2:
7336                 ret = src[1] | ((uint64_t) src[0]) << 8;
7337                 break;
7338         case 4:
7339                 ret = src[3] | ((uint64_t) src[2]) << 8;
7340                 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7341                 break;
7342         case 8:
7343                 ret = src[7] | ((uint64_t) src[6]) << 8;
7344                 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7345                 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7346                 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7347                 break;
7348         default:
7349                 return (0);
7350         }
7351
7352         *offsetp += bytes_to_read;
7353
7354         return (ret);
7355 }
7356
7357 static uint64_t
7358 _decode_lsb(uint8_t **data, int bytes_to_read)
7359 {
7360         uint64_t ret;
7361         uint8_t *src;
7362
7363         src = *data;
7364
7365         ret = 0;
7366         switch (bytes_to_read) {
7367         case 8:
7368                 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7369                 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7370                 /* FALLTHROUGH */
7371         case 4:
7372                 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7373                 /* FALLTHROUGH */
7374         case 2:
7375                 ret |= ((uint64_t) src[1]) << 8;
7376                 /* FALLTHROUGH */
7377         case 1:
7378                 ret |= src[0];
7379                 break;
7380         default:
7381                 return (0);
7382         }
7383
7384         *data += bytes_to_read;
7385
7386         return (ret);
7387 }
7388
7389 static uint64_t
7390 _decode_msb(uint8_t **data, int bytes_to_read)
7391 {
7392         uint64_t ret;
7393         uint8_t *src;
7394
7395         src = *data;
7396
7397         ret = 0;
7398         switch (bytes_to_read) {
7399         case 1:
7400                 ret = src[0];
7401                 break;
7402         case 2:
7403                 ret = src[1] | ((uint64_t) src[0]) << 8;
7404                 break;
7405         case 4:
7406                 ret = src[3] | ((uint64_t) src[2]) << 8;
7407                 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7408                 break;
7409         case 8:
7410                 ret = src[7] | ((uint64_t) src[6]) << 8;
7411                 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7412                 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7413                 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7414                 break;
7415         default:
7416                 return (0);
7417                 break;
7418         }
7419
7420         *data += bytes_to_read;
7421
7422         return (ret);
7423 }
7424
7425 static int64_t
7426 _decode_sleb128(uint8_t **dp, uint8_t *dpe)
7427 {
7428         int64_t ret = 0;
7429         uint8_t b = 0;
7430         int shift = 0;
7431
7432         uint8_t *src = *dp;
7433
7434         do {
7435                 if (src >= dpe)
7436                         break;
7437                 b = *src++;
7438                 ret |= ((b & 0x7f) << shift);
7439                 shift += 7;
7440         } while ((b & 0x80) != 0);
7441
7442         if (shift < 32 && (b & 0x40) != 0)
7443                 ret |= (-1 << shift);
7444
7445         *dp = src;
7446
7447         return (ret);
7448 }
7449
7450 static uint64_t
7451 _decode_uleb128(uint8_t **dp, uint8_t *dpe)
7452 {
7453         uint64_t ret = 0;
7454         uint8_t b;
7455         int shift = 0;
7456
7457         uint8_t *src = *dp;
7458
7459         do {
7460                 if (src >= dpe)
7461                         break;
7462                 b = *src++;
7463                 ret |= ((b & 0x7f) << shift);
7464                 shift += 7;
7465         } while ((b & 0x80) != 0);
7466
7467         *dp = src;
7468
7469         return (ret);
7470 }
7471
7472 static void
7473 readelf_version(void)
7474 {
7475         (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(),
7476             elftc_version());
7477         exit(EXIT_SUCCESS);
7478 }
7479
7480 #define USAGE_MESSAGE   "\
7481 Usage: %s [options] file...\n\
7482   Display information about ELF objects and ar(1) archives.\n\n\
7483   Options:\n\
7484   -a | --all               Equivalent to specifying options '-dhIlrsASV'.\n\
7485   -c | --archive-index     Print the archive symbol table for archives.\n\
7486   -d | --dynamic           Print the contents of SHT_DYNAMIC sections.\n\
7487   -e | --headers           Print all headers in the object.\n\
7488   -g | --section-groups    Print the contents of the section groups.\n\
7489   -h | --file-header       Print the file header for the object.\n\
7490   -l | --program-headers   Print the PHDR table for the object.\n\
7491   -n | --notes             Print the contents of SHT_NOTE sections.\n\
7492   -p INDEX | --string-dump=INDEX\n\
7493                            Print the contents of section at index INDEX.\n\
7494   -r | --relocs            Print relocation information.\n\
7495   -s | --syms | --symbols  Print symbol tables.\n\
7496   -t | --section-details   Print additional information about sections.\n\
7497   -v | --version           Print a version identifier and exit.\n\
7498   -w[afilmoprsFLR] | --debug-dump={abbrev,aranges,decodedline,frames,\n\
7499                                frames-interp,info,loc,macro,pubnames,\n\
7500                                ranges,Ranges,rawline,str}\n\
7501                            Display DWARF information.\n\
7502   -x INDEX | --hex-dump=INDEX\n\
7503                            Display contents of a section as hexadecimal.\n\
7504   -A | --arch-specific     (accepted, but ignored)\n\
7505   -D | --use-dynamic       Print the symbol table specified by the DT_SYMTAB\n\
7506                            entry in the \".dynamic\" section.\n\
7507   -H | --help              Print a help message.\n\
7508   -I | --histogram         Print information on bucket list lengths for \n\
7509                            hash sections.\n\
7510   -N | --full-section-name (accepted, but ignored)\n\
7511   -S | --sections | --section-headers\n\
7512                            Print information about section headers.\n\
7513   -V | --version-info      Print symbol versoning information.\n\
7514   -W | --wide              Print information without wrapping long lines.\n"
7515
7516
7517 static void
7518 readelf_usage(int status)
7519 {
7520         fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
7521         exit(status);
7522 }
7523
7524 int
7525 main(int argc, char **argv)
7526 {
7527         struct readelf  *re, re_storage;
7528         unsigned long    si;
7529         int              opt, i;
7530         char            *ep;
7531
7532         re = &re_storage;
7533         memset(re, 0, sizeof(*re));
7534         STAILQ_INIT(&re->v_dumpop);
7535
7536         while ((opt = getopt_long(argc, argv, "AacDdegHhIi:lNnp:rSstuVvWw::x:",
7537             longopts, NULL)) != -1) {
7538                 switch(opt) {
7539                 case '?':
7540                         readelf_usage(EXIT_SUCCESS);
7541                         break;
7542                 case 'A':
7543                         re->options |= RE_AA;
7544                         break;
7545                 case 'a':
7546                         re->options |= RE_AA | RE_D | RE_G | RE_H | RE_II |
7547                             RE_L | RE_R | RE_SS | RE_S | RE_VV;
7548                         break;
7549                 case 'c':
7550                         re->options |= RE_C;
7551                         break;
7552                 case 'D':
7553                         re->options |= RE_DD;
7554                         break;
7555                 case 'd':
7556                         re->options |= RE_D;
7557                         break;
7558                 case 'e':
7559                         re->options |= RE_H | RE_L | RE_SS;
7560                         break;
7561                 case 'g':
7562                         re->options |= RE_G;
7563                         break;
7564                 case 'H':
7565                         readelf_usage(EXIT_SUCCESS);
7566                         break;
7567                 case 'h':
7568                         re->options |= RE_H;
7569                         break;
7570                 case 'I':
7571                         re->options |= RE_II;
7572                         break;
7573                 case 'i':
7574                         /* Not implemented yet. */
7575                         break;
7576                 case 'l':
7577                         re->options |= RE_L;
7578                         break;
7579                 case 'N':
7580                         re->options |= RE_NN;
7581                         break;
7582                 case 'n':
7583                         re->options |= RE_N;
7584                         break;
7585                 case 'p':
7586                         re->options |= RE_P;
7587                         si = strtoul(optarg, &ep, 10);
7588                         if (*ep == '\0')
7589                                 add_dumpop(re, (size_t) si, NULL, STR_DUMP,
7590                                     DUMP_BY_INDEX);
7591                         else
7592                                 add_dumpop(re, 0, optarg, STR_DUMP,
7593                                     DUMP_BY_NAME);
7594                         break;
7595                 case 'r':
7596                         re->options |= RE_R;
7597                         break;
7598                 case 'S':
7599                         re->options |= RE_SS;
7600                         break;
7601                 case 's':
7602                         re->options |= RE_S;
7603                         break;
7604                 case 't':
7605                         re->options |= RE_SS | RE_T;
7606                         break;
7607                 case 'u':
7608                         re->options |= RE_U;
7609                         break;
7610                 case 'V':
7611                         re->options |= RE_VV;
7612                         break;
7613                 case 'v':
7614                         readelf_version();
7615                         break;
7616                 case 'W':
7617                         re->options |= RE_WW;
7618                         break;
7619                 case 'w':
7620                         re->options |= RE_W;
7621                         parse_dwarf_op_short(re, optarg);
7622                         break;
7623                 case 'x':
7624                         re->options |= RE_X;
7625                         si = strtoul(optarg, &ep, 10);
7626                         if (*ep == '\0')
7627                                 add_dumpop(re, (size_t) si, NULL, HEX_DUMP,
7628                                     DUMP_BY_INDEX);
7629                         else
7630                                 add_dumpop(re, 0, optarg, HEX_DUMP,
7631                                     DUMP_BY_NAME);
7632                         break;
7633                 case OPTION_DEBUG_DUMP:
7634                         re->options |= RE_W;
7635                         parse_dwarf_op_long(re, optarg);
7636                 }
7637         }
7638
7639         argv += optind;
7640         argc -= optind;
7641
7642         if (argc == 0 || re->options == 0)
7643                 readelf_usage(EXIT_FAILURE);
7644
7645         if (argc > 1)
7646                 re->flags |= DISPLAY_FILENAME;
7647
7648         if (elf_version(EV_CURRENT) == EV_NONE)
7649                 errx(EXIT_FAILURE, "ELF library initialization failed: %s",
7650                     elf_errmsg(-1));
7651
7652         for (i = 0; i < argc; i++) {
7653                 re->filename = argv[i];
7654                 dump_object(re);
7655         }
7656
7657         exit(EXIT_SUCCESS);
7658 }