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 3580 2017-09-15 23:29:59Z 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 static void add_dumpop(struct readelf *re, size_t si, const char *sn, int op,
 224     int t);
 225 static const char *aeabi_adv_simd_arch(uint64_t simd);
 226 static const char *aeabi_align_needed(uint64_t an);
 227 static const char *aeabi_align_preserved(uint64_t ap);
 228 static const char *aeabi_arm_isa(uint64_t ai);
 229 static const char *aeabi_cpu_arch(uint64_t arch);
 230 static const char *aeabi_cpu_arch_profile(uint64_t pf);
 231 static const char *aeabi_div(uint64_t du);
 232 static const char *aeabi_enum_size(uint64_t es);
 233 static const char *aeabi_fp_16bit_format(uint64_t fp16);
 234 static const char *aeabi_fp_arch(uint64_t fp);
 235 static const char *aeabi_fp_denormal(uint64_t fd);
 236 static const char *aeabi_fp_exceptions(uint64_t fe);
 237 static const char *aeabi_fp_hpext(uint64_t fh);
 238 static const char *aeabi_fp_number_model(uint64_t fn);
 239 static const char *aeabi_fp_optm_goal(uint64_t fog);
 240 static const char *aeabi_fp_rounding(uint64_t fr);
 241 static const char *aeabi_hardfp(uint64_t hfp);
 242 static const char *aeabi_mpext(uint64_t mp);
 243 static const char *aeabi_optm_goal(uint64_t og);
 244 static const char *aeabi_pcs_config(uint64_t pcs);
 245 static const char *aeabi_pcs_got(uint64_t got);
 246 static const char *aeabi_pcs_r9(uint64_t r9);
 247 static const char *aeabi_pcs_ro(uint64_t ro);
 248 static const char *aeabi_pcs_rw(uint64_t rw);
 249 static const char *aeabi_pcs_wchar_t(uint64_t wt);
 250 static const char *aeabi_t2ee(uint64_t t2ee);
 251 static const char *aeabi_thumb_isa(uint64_t ti);
 252 static const char *aeabi_fp_user_exceptions(uint64_t fu);
 253 static const char *aeabi_unaligned_access(uint64_t ua);
 254 static const char *aeabi_vfp_args(uint64_t va);
 255 static const char *aeabi_virtual(uint64_t vt);
 256 static const char *aeabi_wmmx_arch(uint64_t wmmx);
 257 static const char *aeabi_wmmx_args(uint64_t wa);
 258 static const char *elf_class(unsigned int class);
 259 static const char *elf_endian(unsigned int endian);
 260 static const char *elf_machine(unsigned int mach);
 261 static const char *elf_osabi(unsigned int abi);
 262 static const char *elf_type(unsigned int type);
 263 static const char *elf_ver(unsigned int ver);
 264 static const char *dt_type(unsigned int mach, unsigned int dtype);
 265 static void dump_ar(struct readelf *re, int);
 266 static void dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
 267 static void dump_attributes(struct readelf *re);
 268 static uint8_t *dump_compatibility_tag(uint8_t *p, uint8_t *pe);
 269 static void dump_dwarf(struct readelf *re);
 270 static void dump_dwarf_abbrev(struct readelf *re);
 271 static void dump_dwarf_aranges(struct readelf *re);
 272 static void dump_dwarf_block(struct readelf *re, uint8_t *b,
 273     Dwarf_Unsigned len);
 274 static void dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level);
 275 static void dump_dwarf_frame(struct readelf *re, int alt);
 276 static void dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie,
 277     uint8_t *insts, Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf,
 278     Dwarf_Addr pc, Dwarf_Debug dbg);
 279 static int dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde,
 280     Dwarf_Addr pc, Dwarf_Unsigned func_len, Dwarf_Half cie_ra);
 281 static void dump_dwarf_frame_section(struct readelf *re, struct section *s,
 282     int alt);
 283 static void dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info);
 284 static void dump_dwarf_macinfo(struct readelf *re);
 285 static void dump_dwarf_line(struct readelf *re);
 286 static void dump_dwarf_line_decoded(struct readelf *re);
 287 static void dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr);
 288 static void dump_dwarf_loclist(struct readelf *re);
 289 static void dump_dwarf_pubnames(struct readelf *re);
 290 static void dump_dwarf_ranges(struct readelf *re);
 291 static void dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die,
 292     Dwarf_Addr base);
 293 static void dump_dwarf_str(struct readelf *re);
 294 static void dump_eflags(struct readelf *re, uint64_t e_flags);
 295 static void dump_elf(struct readelf *re);
 296 static void dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab);
 297 static void dump_dynamic(struct readelf *re);
 298 static void dump_liblist(struct readelf *re);
 299 static void dump_mips_abiflags(struct readelf *re, struct section *s);
 300 static void dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
 301 static void dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz);
 302 static void dump_mips_options(struct readelf *re, struct section *s);
 303 static void dump_mips_option_flags(const char *name, struct mips_option *opt,
 304     uint64_t info);
 305 static void dump_mips_reginfo(struct readelf *re, struct section *s);
 306 static void dump_mips_specific_info(struct readelf *re);
 307 static void dump_notes(struct readelf *re);
 308 static void dump_notes_content(struct readelf *re, const char *buf, size_t sz,
 309     off_t off);
 310 static void dump_svr4_hash(struct section *s);
 311 static void dump_svr4_hash64(struct readelf *re, struct section *s);
 312 static void dump_gnu_hash(struct readelf *re, struct section *s);
 313 static void dump_hash(struct readelf *re);
 314 static void dump_phdr(struct readelf *re);
 315 static void dump_ppc_attributes(uint8_t *p, uint8_t *pe);
 316 static void dump_section_groups(struct readelf *re);
 317 static void dump_symtab(struct readelf *re, int i);
 318 static void dump_symtabs(struct readelf *re);
 319 static uint8_t *dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe);
 320 static void dump_ver(struct readelf *re);
 321 static void dump_verdef(struct readelf *re, int dump);
 322 static void dump_verneed(struct readelf *re, int dump);
 323 static void dump_versym(struct readelf *re);
 324 static const char *dwarf_reg(unsigned int mach, unsigned int reg);
 325 static const char *dwarf_regname(struct readelf *re, unsigned int num);
 326 static struct dumpop *find_dumpop(struct readelf *re, size_t si,
 327     const char *sn, int op, int t);
 328 static int get_ent_count(struct section *s, int *ent_count);
 329 static int get_mips_register_size(uint8_t flag);
 330 static char *get_regoff_str(struct readelf *re, Dwarf_Half reg,
 331     Dwarf_Addr off);
 332 static const char *get_string(struct readelf *re, int strtab, size_t off);
 333 static const char *get_symbol_name(struct readelf *re, int symtab, int i);
 334 static uint64_t get_symbol_value(struct readelf *re, int symtab, int i);
 335 static void load_sections(struct readelf *re);
 336 static const char *mips_abi_fp(uint64_t fp);
 337 static const char *note_type(const char *note_name, unsigned int et,
 338     unsigned int nt);
 339 static const char *note_type_freebsd(unsigned int nt);
 340 static const char *note_type_freebsd_core(unsigned int nt);
 341 static const char *note_type_linux_core(unsigned int nt);
 342 static const char *note_type_gnu(unsigned int nt);
 343 static const char *note_type_netbsd(unsigned int nt);
 344 static const char *note_type_openbsd(unsigned int nt);
 345 static const char *note_type_unknown(unsigned int nt);
 346 static const char *note_type_xen(unsigned int nt);
 347 static const char *option_kind(uint8_t kind);
 348 static const char *phdr_type(unsigned int mach, unsigned int ptype);
 349 static const char *ppc_abi_fp(uint64_t fp);
 350 static const char *ppc_abi_vector(uint64_t vec);
 351 static void readelf_usage(int status);
 352 static void readelf_version(void);
 353 static void search_loclist_at(struct readelf *re, Dwarf_Die die,
 354     Dwarf_Unsigned lowpc);
 355 static void search_ver(struct readelf *re);
 356 static const char *section_type(unsigned int mach, unsigned int stype);
 357 static void set_cu_context(struct readelf *re, Dwarf_Half psize,
 358     Dwarf_Half osize, Dwarf_Half ver);
 359 static const char *st_bind(unsigned int sbind);
 360 static const char *st_shndx(unsigned int shndx);
 361 static const char *st_type(unsigned int mach, unsigned int os,
 362     unsigned int stype);
 363 static const char *st_vis(unsigned int svis);
 364 static const char *top_tag(unsigned int tag);
 365 static void unload_sections(struct readelf *re);
 366 static uint64_t _read_lsb(Elf_Data *d, uint64_t *offsetp,
 367     int bytes_to_read);
 368 static uint64_t _read_msb(Elf_Data *d, uint64_t *offsetp,
 369     int bytes_to_read);
 370 static uint64_t _decode_lsb(uint8_t **data, int bytes_to_read);
 371 static uint64_t _decode_msb(uint8_t **data, int bytes_to_read);
 372 static int64_t _decode_sleb128(uint8_t **dp, uint8_t *dpe);
 373 static uint64_t _decode_uleb128(uint8_t **dp, uint8_t *dpe);
 374
 375 static struct eflags_desc arm_eflags_desc[] = {
 376         {EF_ARM_RELEXEC, "relocatable executable"},
 377         {EF_ARM_HASENTRY, "has entry point"},
 378         {EF_ARM_SYMSARESORTED, "sorted symbol tables"},
 379         {EF_ARM_DYNSYMSUSESEGIDX, "dynamic symbols use segment index"},
 380         {EF_ARM_MAPSYMSFIRST, "mapping symbols precede others"},
 381         {EF_ARM_BE8, "BE8"},
 382         {EF_ARM_LE8, "LE8"},
 383         {EF_ARM_INTERWORK, "interworking enabled"},
 384         {EF_ARM_APCS_26, "uses APCS/26"},
 385         {EF_ARM_APCS_FLOAT, "uses APCS/float"},
 386         {EF_ARM_PIC, "position independent"},
 387         {EF_ARM_ALIGN8, "8 bit structure alignment"},
 388         {EF_ARM_NEW_ABI, "uses new ABI"},
 389         {EF_ARM_OLD_ABI, "uses old ABI"},
 390         {EF_ARM_SOFT_FLOAT, "software FP"},
 391         {EF_ARM_VFP_FLOAT, "VFP"},
 392         {EF_ARM_MAVERICK_FLOAT, "Maverick FP"},
 393         {0, NULL}
 394 };
 395
 396 static struct eflags_desc mips_eflags_desc[] = {
 397         {EF_MIPS_NOREORDER, "noreorder"},
 398         {EF_MIPS_PIC, "pic"},
 399         {EF_MIPS_CPIC, "cpic"},
 400         {EF_MIPS_UCODE, "ugen_reserved"},
 401         {EF_MIPS_ABI2, "abi2"},
 402         {EF_MIPS_OPTIONS_FIRST, "odk first"},
 403         {EF_MIPS_ARCH_ASE_MDMX, "mdmx"},
 404         {EF_MIPS_ARCH_ASE_M16, "mips16"},
 405         {0, NULL}
 406 };
 407
 408 static struct eflags_desc powerpc_eflags_desc[] = {
 409         {EF_PPC_EMB, "emb"},
 410         {EF_PPC_RELOCATABLE, "relocatable"},
 411         {EF_PPC_RELOCATABLE_LIB, "relocatable-lib"},
 412         {0, NULL}
 413 };
 414
 415 static struct eflags_desc sparc_eflags_desc[] = {
 416         {EF_SPARC_32PLUS, "v8+"},
 417         {EF_SPARC_SUN_US1, "ultrasparcI"},
 418         {EF_SPARC_HAL_R1, "halr1"},
 419         {EF_SPARC_SUN_US3, "ultrasparcIII"},
 420         {0, NULL}
 421 };
 422
 423 static const char *
 424 elf_osabi(unsigned int abi)
 425 {
 426         static char s_abi[32];
 427
 428         switch(abi) {
 429         case ELFOSABI_NONE: return "NONE";
 430         case ELFOSABI_HPUX: return "HPUX";
 431         case ELFOSABI_NETBSD: return "NetBSD";
 432         case ELFOSABI_GNU: return "GNU";
 433         case ELFOSABI_HURD: return "HURD";
 434         case ELFOSABI_86OPEN: return "86OPEN";
 435         case ELFOSABI_SOLARIS: return "Solaris";
 436         case ELFOSABI_AIX: return "AIX";
 437         case ELFOSABI_IRIX: return "IRIX";
 438         case ELFOSABI_FREEBSD: return "FreeBSD";
 439         case ELFOSABI_TRU64: return "TRU64";
 440         case ELFOSABI_MODESTO: return "MODESTO";
 441         case ELFOSABI_OPENBSD: return "OpenBSD";
 442         case ELFOSABI_OPENVMS: return "OpenVMS";
 443         case ELFOSABI_NSK: return "NSK";
 444         case ELFOSABI_CLOUDABI: return "CloudABI";
 445         case ELFOSABI_ARM_AEABI: return "ARM EABI";
 446         case ELFOSABI_ARM: return "ARM";
 447         case ELFOSABI_STANDALONE: return "StandAlone";
 448         default:
 449                 snprintf(s_abi, sizeof(s_abi), "<unknown: %#x>", abi);
 450                 return (s_abi);
 451         }
 452 };
 453
 454 static const char *
 455 elf_machine(unsigned int mach)
 456 {
 457         static char s_mach[32];
 458
 459         switch (mach) {
 460         case EM_NONE: return "Unknown machine";
 461         case EM_M32: return "AT&T WE32100";
 462         case EM_SPARC: return "Sun SPARC";
 463         case EM_386: return "Intel i386";
 464         case EM_68K: return "Motorola 68000";
 465         case EM_IAMCU: return "Intel MCU";
 466         case EM_88K: return "Motorola 88000";
 467         case EM_860: return "Intel i860";
 468         case EM_MIPS: return "MIPS R3000 Big-Endian only";
 469         case EM_S370: return "IBM System/370";
 470         case EM_MIPS_RS3_LE: return "MIPS R3000 Little-Endian";
 471         case EM_PARISC: return "HP PA-RISC";
 472         case EM_VPP500: return "Fujitsu VPP500";
 473         case EM_SPARC32PLUS: return "SPARC v8plus";
 474         case EM_960: return "Intel 80960";
 475         case EM_PPC: return "PowerPC 32-bit";
 476         case EM_PPC64: return "PowerPC 64-bit";
 477         case EM_S390: return "IBM System/390";
 478         case EM_V800: return "NEC V800";
 479         case EM_FR20: return "Fujitsu FR20";
 480         case EM_RH32: return "TRW RH-32";
 481         case EM_RCE: return "Motorola RCE";
 482         case EM_ARM: return "ARM";
 483         case EM_SH: return "Hitachi SH";
 484         case EM_SPARCV9: return "SPARC v9 64-bit";
 485         case EM_TRICORE: return "Siemens TriCore embedded processor";
 486         case EM_ARC: return "Argonaut RISC Core";
 487         case EM_H8_300: return "Hitachi H8/300";
 488         case EM_H8_300H: return "Hitachi H8/300H";
 489         case EM_H8S: return "Hitachi H8S";
 490         case EM_H8_500: return "Hitachi H8/500";
 491         case EM_IA_64: return "Intel IA-64 Processor";
 492         case EM_MIPS_X: return "Stanford MIPS-X";
 493         case EM_COLDFIRE: return "Motorola ColdFire";
 494         case EM_68HC12: return "Motorola M68HC12";
 495         case EM_MMA: return "Fujitsu MMA";
 496         case EM_PCP: return "Siemens PCP";
 497         case EM_NCPU: return "Sony nCPU";
 498         case EM_NDR1: return "Denso NDR1 microprocessor";
 499         case EM_STARCORE: return "Motorola Star*Core processor";
 500         case EM_ME16: return "Toyota ME16 processor";
 501         case EM_ST100: return "STMicroelectronics ST100 processor";
 502         case EM_TINYJ: return "Advanced Logic Corp. TinyJ processor";
 503         case EM_X86_64: return "Advanced Micro Devices x86-64";
 504         case EM_PDSP: return "Sony DSP Processor";
 505         case EM_FX66: return "Siemens FX66 microcontroller";
 506         case EM_ST9PLUS: return "STMicroelectronics ST9+ 8/16 microcontroller";
 507         case EM_ST7: return "STmicroelectronics ST7 8-bit microcontroller";
 508         case EM_68HC16: return "Motorola MC68HC16 microcontroller";
 509         case EM_68HC11: return "Motorola MC68HC11 microcontroller";
 510         case EM_68HC08: return "Motorola MC68HC08 microcontroller";
 511         case EM_68HC05: return "Motorola MC68HC05 microcontroller";
 512         case EM_SVX: return "Silicon Graphics SVx";
 513         case EM_ST19: return "STMicroelectronics ST19 8-bit mc";
 514         case EM_VAX: return "Digital VAX";
 515         case EM_CRIS: return "Axis Communications 32-bit embedded processor";
 516         case EM_JAVELIN: return "Infineon Tech. 32bit embedded processor";
 517         case EM_FIREPATH: return "Element 14 64-bit DSP Processor";
 518         case EM_ZSP: return "LSI Logic 16-bit DSP Processor";
 519         case EM_MMIX: return "Donald Knuth's educational 64-bit proc";
 520         case EM_HUANY: return "Harvard University MI object files";
 521         case EM_PRISM: return "SiTera Prism";
 522         case EM_AVR: return "Atmel AVR 8-bit microcontroller";
 523         case EM_FR30: return "Fujitsu FR30";
 524         case EM_D10V: return "Mitsubishi D10V";
 525         case EM_D30V: return "Mitsubishi D30V";
 526         case EM_V850: return "NEC v850";
 527         case EM_M32R: return "Mitsubishi M32R";
 528         case EM_MN10300: return "Matsushita MN10300";
 529         case EM_MN10200: return "Matsushita MN10200";
 530         case EM_PJ: return "picoJava";
 531         case EM_OPENRISC: return "OpenRISC 32-bit embedded processor";
 532         case EM_ARC_A5: return "ARC Cores Tangent-A5";
 533         case EM_XTENSA: return "Tensilica Xtensa Architecture";
 534         case EM_VIDEOCORE: return "Alphamosaic VideoCore processor";
 535         case EM_TMM_GPP: return "Thompson Multimedia General Purpose Processor";
 536         case EM_NS32K: return "National Semiconductor 32000 series";
 537         case EM_TPC: return "Tenor Network TPC processor";
 538         case EM_SNP1K: return "Trebia SNP 1000 processor";
 539         case EM_ST200: return "STMicroelectronics ST200 microcontroller";
 540         case EM_IP2K: return "Ubicom IP2xxx microcontroller family";
 541         case EM_MAX: return "MAX Processor";
 542         case EM_CR: return "National Semiconductor CompactRISC microprocessor";
 543         case EM_F2MC16: return "Fujitsu F2MC16";
 544         case EM_MSP430: return "TI embedded microcontroller msp430";
 545         case EM_BLACKFIN: return "Analog Devices Blackfin (DSP) processor";
 546         case EM_SE_C33: return "S1C33 Family of Seiko Epson processors";
 547         case EM_SEP: return "Sharp embedded microprocessor";
 548         case EM_ARCA: return "Arca RISC Microprocessor";
 549         case EM_UNICORE: return "Microprocessor series from PKU-Unity Ltd";
 550         case EM_AARCH64: return "AArch64";
 551         case EM_RISCV: return "RISC-V";
 552         default:
 553                 snprintf(s_mach, sizeof(s_mach), "<unknown: %#x>", mach);
 554                 return (s_mach);
 555         }
 556
 557 }
 558
 559 static const char *
 560 elf_class(unsigned int class)
 561 {
 562         static char s_class[32];
 563
 564         switch (class) {
 565         case ELFCLASSNONE: return "none";
 566         case ELFCLASS32: return "ELF32";
 567         case ELFCLASS64: return "ELF64";
 568         default:
 569                 snprintf(s_class, sizeof(s_class), "<unknown: %#x>", class);
 570                 return (s_class);
 571         }
 572 }
 573
 574 static const char *
 575 elf_endian(unsigned int endian)
 576 {
 577         static char s_endian[32];
 578
 579         switch (endian) {
 580         case ELFDATANONE: return "none";
 581         case ELFDATA2LSB: return "2's complement, little endian";
 582         case ELFDATA2MSB: return "2's complement, big endian";
 583         default:
 584                 snprintf(s_endian, sizeof(s_endian), "<unknown: %#x>", endian);
 585                 return (s_endian);
 586         }
 587 }
 588
 589 static const char *
 590 elf_type(unsigned int type)
 591 {
 592         static char s_type[32];
 593
 594         switch (type) {
 595         case ET_NONE: return "NONE (None)";
 596         case ET_REL: return "REL (Relocatable file)";
 597         case ET_EXEC: return "EXEC (Executable file)";
 598         case ET_DYN: return "DYN (Shared object file)";
 599         case ET_CORE: return "CORE (Core file)";
 600         default:
 601                 if (type >= ET_LOPROC)
 602                         snprintf(s_type, sizeof(s_type), "<proc: %#x>", type);
 603                 else if (type >= ET_LOOS && type <= ET_HIOS)
 604                         snprintf(s_type, sizeof(s_type), "<os: %#x>", type);
 605                 else
 606                         snprintf(s_type, sizeof(s_type), "<unknown: %#x>",
 607                             type);
 608                 return (s_type);
 609         }
 610 }
 611
 612 static const char *
 613 elf_ver(unsigned int ver)
 614 {
 615         static char s_ver[32];
 616
 617         switch (ver) {
 618         case EV_CURRENT: return "(current)";
 619         case EV_NONE: return "(none)";
 620         default:
 621                 snprintf(s_ver, sizeof(s_ver), "<unknown: %#x>",
 622                     ver);
 623                 return (s_ver);
 624         }
 625 }
 626
 627 static const char *
 628 phdr_type(unsigned int mach, unsigned int ptype)
 629 {
 630         static char s_ptype[32];
 631
 632         if (ptype >= PT_LOPROC && ptype <= PT_HIPROC) {
 633                 switch (mach) {
 634                 case EM_ARM:
 635                         switch (ptype) {
 636                         case PT_ARM_ARCHEXT: return "ARM_ARCHEXT";
 637                         case PT_ARM_EXIDX: return "ARM_EXIDX";
 638                         }
 639                         break;
 640                 }
 641                 snprintf(s_ptype, sizeof(s_ptype), "LOPROC+%#x",
 642                     ptype - PT_LOPROC);
 643                 return (s_ptype);
 644         }
 645
 646         switch (ptype) {
 647         case PT_NULL: return "NULL";
 648         case PT_LOAD: return "LOAD";
 649         case PT_DYNAMIC: return "DYNAMIC";
 650         case PT_INTERP: return "INTERP";
 651         case PT_NOTE: return "NOTE";
 652         case PT_SHLIB: return "SHLIB";
 653         case PT_PHDR: return "PHDR";
 654         case PT_TLS: return "TLS";
 655         case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
 656         case PT_GNU_STACK: return "GNU_STACK";
 657         case PT_GNU_RELRO: return "GNU_RELRO";
 658         default:
 659                 if (ptype >= PT_LOOS && ptype <= PT_HIOS)
 660                         snprintf(s_ptype, sizeof(s_ptype), "LOOS+%#x",
 661                             ptype - PT_LOOS);
 662                 else
 663                         snprintf(s_ptype, sizeof(s_ptype), "<unknown: %#x>",
 664                             ptype);
 665                 return (s_ptype);
 666         }
 667 }
 668
 669 static const char *
 670 section_type(unsigned int mach, unsigned int stype)
 671 {
 672         static char s_stype[32];
 673
 674         if (stype >= SHT_LOPROC && stype <= SHT_HIPROC) {
 675                 switch (mach) {
 676                 case EM_ARM:
 677                         switch (stype) {
 678                         case SHT_ARM_EXIDX: return "ARM_EXIDX";
 679                         case SHT_ARM_PREEMPTMAP: return "ARM_PREEMPTMAP";
 680                         case SHT_ARM_ATTRIBUTES: return "ARM_ATTRIBUTES";
 681                         case SHT_ARM_DEBUGOVERLAY: return "ARM_DEBUGOVERLAY";
 682                         case SHT_ARM_OVERLAYSECTION: return "ARM_OVERLAYSECTION";
 683                         }
 684                         break;
 685                 case EM_X86_64:
 686                         switch (stype) {
 687                         case SHT_X86_64_UNWIND: return "X86_64_UNWIND";
 688                         default:
 689                                 break;
 690                         }
 691                         break;
 692                 case EM_MIPS:
 693                 case EM_MIPS_RS3_LE:
 694                         switch (stype) {
 695                         case SHT_MIPS_LIBLIST: return "MIPS_LIBLIST";
 696                         case SHT_MIPS_MSYM: return "MIPS_MSYM";
 697                         case SHT_MIPS_CONFLICT: return "MIPS_CONFLICT";
 698                         case SHT_MIPS_GPTAB: return "MIPS_GPTAB";
 699                         case SHT_MIPS_UCODE: return "MIPS_UCODE";
 700                         case SHT_MIPS_DEBUG: return "MIPS_DEBUG";
 701                         case SHT_MIPS_REGINFO: return "MIPS_REGINFO";
 702                         case SHT_MIPS_PACKAGE: return "MIPS_PACKAGE";
 703                         case SHT_MIPS_PACKSYM: return "MIPS_PACKSYM";
 704                         case SHT_MIPS_RELD: return "MIPS_RELD";
 705                         case SHT_MIPS_IFACE: return "MIPS_IFACE";
 706                         case SHT_MIPS_CONTENT: return "MIPS_CONTENT";
 707                         case SHT_MIPS_OPTIONS: return "MIPS_OPTIONS";
 708                         case SHT_MIPS_DELTASYM: return "MIPS_DELTASYM";
 709                         case SHT_MIPS_DELTAINST: return "MIPS_DELTAINST";
 710                         case SHT_MIPS_DELTACLASS: return "MIPS_DELTACLASS";
 711                         case SHT_MIPS_DWARF: return "MIPS_DWARF";
 712                         case SHT_MIPS_DELTADECL: return "MIPS_DELTADECL";
 713                         case SHT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
 714                         case SHT_MIPS_EVENTS: return "MIPS_EVENTS";
 715                         case SHT_MIPS_TRANSLATE: return "MIPS_TRANSLATE";
 716                         case SHT_MIPS_PIXIE: return "MIPS_PIXIE";
 717                         case SHT_MIPS_XLATE: return "MIPS_XLATE";
 718                         case SHT_MIPS_XLATE_DEBUG: return "MIPS_XLATE_DEBUG";
 719                         case SHT_MIPS_WHIRL: return "MIPS_WHIRL";
 720                         case SHT_MIPS_EH_REGION: return "MIPS_EH_REGION";
 721                         case SHT_MIPS_XLATE_OLD: return "MIPS_XLATE_OLD";
 722                         case SHT_MIPS_PDR_EXCEPTION: return "MIPS_PDR_EXCEPTION";
 723                         case SHT_MIPS_ABIFLAGS: return "MIPS_ABIFLAGS";
 724                         default:
 725                                 break;
 726                         }
 727                         break;
 728                 default:
 729                         break;
 730                 }
 731
 732                 snprintf(s_stype, sizeof(s_stype), "LOPROC+%#x",
 733                     stype - SHT_LOPROC);
 734                 return (s_stype);
 735         }
 736
 737         switch (stype) {
 738         case SHT_NULL: return "NULL";
 739         case SHT_PROGBITS: return "PROGBITS";
 740         case SHT_SYMTAB: return "SYMTAB";
 741         case SHT_STRTAB: return "STRTAB";
 742         case SHT_RELA: return "RELA";
 743         case SHT_HASH: return "HASH";
 744         case SHT_DYNAMIC: return "DYNAMIC";
 745         case SHT_NOTE: return "NOTE";
 746         case SHT_NOBITS: return "NOBITS";
 747         case SHT_REL: return "REL";
 748         case SHT_SHLIB: return "SHLIB";
 749         case SHT_DYNSYM: return "DYNSYM";
 750         case SHT_INIT_ARRAY: return "INIT_ARRAY";
 751         case SHT_FINI_ARRAY: return "FINI_ARRAY";
 752         case SHT_PREINIT_ARRAY: return "PREINIT_ARRAY";
 753         case SHT_GROUP: return "GROUP";
 754         case SHT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
 755         case SHT_SUNW_dof: return "SUNW_dof";
 756         case SHT_SUNW_cap: return "SUNW_cap";
 757         case SHT_GNU_HASH: return "GNU_HASH";
 758         case SHT_SUNW_ANNOTATE: return "SUNW_ANNOTATE";
 759         case SHT_SUNW_DEBUGSTR: return "SUNW_DEBUGSTR";
 760         case SHT_SUNW_DEBUG: return "SUNW_DEBUG";
 761         case SHT_SUNW_move: return "SUNW_move";
 762         case SHT_SUNW_COMDAT: return "SUNW_COMDAT";
 763         case SHT_SUNW_syminfo: return "SUNW_syminfo";
 764         case SHT_SUNW_verdef: return "SUNW_verdef";
 765         case SHT_SUNW_verneed: return "SUNW_verneed";
 766         case SHT_SUNW_versym: return "SUNW_versym";
 767         default:
 768                 if (stype >= SHT_LOOS && stype <= SHT_HIOS)
 769                         snprintf(s_stype, sizeof(s_stype), "LOOS+%#x",
 770                             stype - SHT_LOOS);
 771                 else if (stype >= SHT_LOUSER)
 772                         snprintf(s_stype, sizeof(s_stype), "LOUSER+%#x",
 773                             stype - SHT_LOUSER);
 774                 else
 775                         snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
 776                             stype);
 777                 return (s_stype);
 778         }
 779 }
 780
 781 static const char *
 782 dt_type(unsigned int mach, unsigned int dtype)
 783 {
 784         static char s_dtype[32];
 785
 786         switch (dtype) {
 787         case DT_NULL: return "NULL";
 788         case DT_NEEDED: return "NEEDED";
 789         case DT_PLTRELSZ: return "PLTRELSZ";
 790         case DT_PLTGOT: return "PLTGOT";
 791         case DT_HASH: return "HASH";
 792         case DT_STRTAB: return "STRTAB";
 793         case DT_SYMTAB: return "SYMTAB";
 794         case DT_RELA: return "RELA";
 795         case DT_RELASZ: return "RELASZ";
 796         case DT_RELAENT: return "RELAENT";
 797         case DT_STRSZ: return "STRSZ";
 798         case DT_SYMENT: return "SYMENT";
 799         case DT_INIT: return "INIT";
 800         case DT_FINI: return "FINI";
 801         case DT_SONAME: return "SONAME";
 802         case DT_RPATH: return "RPATH";
 803         case DT_SYMBOLIC: return "SYMBOLIC";
 804         case DT_REL: return "REL";
 805         case DT_RELSZ: return "RELSZ";
 806         case DT_RELENT: return "RELENT";
 807         case DT_PLTREL: return "PLTREL";
 808         case DT_DEBUG: return "DEBUG";
 809         case DT_TEXTREL: return "TEXTREL";
 810         case DT_JMPREL: return "JMPREL";
 811         case DT_BIND_NOW: return "BIND_NOW";
 812         case DT_INIT_ARRAY: return "INIT_ARRAY";
 813         case DT_FINI_ARRAY: return "FINI_ARRAY";
 814         case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
 815         case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
 816         case DT_RUNPATH: return "RUNPATH";
 817         case DT_FLAGS: return "FLAGS";
 818         case DT_PREINIT_ARRAY: return "PREINIT_ARRAY";
 819         case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
 820         case DT_MAXPOSTAGS: return "MAXPOSTAGS";
 821         case DT_SUNW_AUXILIARY: return "SUNW_AUXILIARY";
 822         case DT_SUNW_RTLDINF: return "SUNW_RTLDINF";
 823         case DT_SUNW_FILTER: return "SUNW_FILTER";
 824         case DT_SUNW_CAP: return "SUNW_CAP";
 825         case DT_SUNW_ASLR: return "SUNW_ASLR";
 826         case DT_CHECKSUM: return "CHECKSUM";
 827         case DT_PLTPADSZ: return "PLTPADSZ";
 828         case DT_MOVEENT: return "MOVEENT";
 829         case DT_MOVESZ: return "MOVESZ";
 830         case DT_FEATURE: return "FEATURE";
 831         case DT_POSFLAG_1: return "POSFLAG_1";
 832         case DT_SYMINSZ: return "SYMINSZ";
 833         case DT_SYMINENT: return "SYMINENT";
 834         case DT_GNU_HASH: return "GNU_HASH";
 835         case DT_TLSDESC_PLT: return "DT_TLSDESC_PLT";
 836         case DT_TLSDESC_GOT: return "DT_TLSDESC_GOT";
 837         case DT_GNU_CONFLICT: return "GNU_CONFLICT";
 838         case DT_GNU_LIBLIST: return "GNU_LIBLIST";
 839         case DT_CONFIG: return "CONFIG";
 840         case DT_DEPAUDIT: return "DEPAUDIT";
 841         case DT_AUDIT: return "AUDIT";
 842         case DT_PLTPAD: return "PLTPAD";
 843         case DT_MOVETAB: return "MOVETAB";
 844         case DT_SYMINFO: return "SYMINFO";
 845         case DT_VERSYM: return "VERSYM";
 846         case DT_RELACOUNT: return "RELACOUNT";
 847         case DT_RELCOUNT: return "RELCOUNT";
 848         case DT_FLAGS_1: return "FLAGS_1";
 849         case DT_VERDEF: return "VERDEF";
 850         case DT_VERDEFNUM: return "VERDEFNUM";
 851         case DT_VERNEED: return "VERNEED";
 852         case DT_VERNEEDNUM: return "VERNEEDNUM";
 853         case DT_AUXILIARY: return "AUXILIARY";
 854         case DT_USED: return "USED";
 855         case DT_FILTER: return "FILTER";
 856         case DT_GNU_PRELINKED: return "GNU_PRELINKED";
 857         case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
 858         case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
 859         }
 860
 861         if (dtype >= DT_LOPROC && dtype <= DT_HIPROC) {
 862                 switch (mach) {
 863                 case EM_ARM:
 864                         switch (dtype) {
 865                         case DT_ARM_SYMTABSZ:
 866                                 return "ARM_SYMTABSZ";
 867                         default:
 868                                 break;
 869                         }
 870                         break;
 871                 case EM_MIPS:
 872                 case EM_MIPS_RS3_LE:
 873                         switch (dtype) {
 874                         case DT_MIPS_RLD_VERSION:
 875                                 return "MIPS_RLD_VERSION";
 876                         case DT_MIPS_TIME_STAMP:
 877                                 return "MIPS_TIME_STAMP";
 878                         case DT_MIPS_ICHECKSUM:
 879                                 return "MIPS_ICHECKSUM";
 880                         case DT_MIPS_IVERSION:
 881                                 return "MIPS_IVERSION";
 882                         case DT_MIPS_FLAGS:
 883                                 return "MIPS_FLAGS";
 884                         case DT_MIPS_BASE_ADDRESS:
 885                                 return "MIPS_BASE_ADDRESS";
 886                         case DT_MIPS_CONFLICT:
 887                                 return "MIPS_CONFLICT";
 888                         case DT_MIPS_LIBLIST:
 889                                 return "MIPS_LIBLIST";
 890                         case DT_MIPS_LOCAL_GOTNO:
 891                                 return "MIPS_LOCAL_GOTNO";
 892                         case DT_MIPS_CONFLICTNO:
 893                                 return "MIPS_CONFLICTNO";
 894                         case DT_MIPS_LIBLISTNO:
 895                                 return "MIPS_LIBLISTNO";
 896                         case DT_MIPS_SYMTABNO:
 897                                 return "MIPS_SYMTABNO";
 898                         case DT_MIPS_UNREFEXTNO:
 899                                 return "MIPS_UNREFEXTNO";
 900                         case DT_MIPS_GOTSYM:
 901                                 return "MIPS_GOTSYM";
 902                         case DT_MIPS_HIPAGENO:
 903                                 return "MIPS_HIPAGENO";
 904                         case DT_MIPS_RLD_MAP:
 905                                 return "MIPS_RLD_MAP";
 906                         case DT_MIPS_DELTA_CLASS:
 907                                 return "MIPS_DELTA_CLASS";
 908                         case DT_MIPS_DELTA_CLASS_NO:
 909                                 return "MIPS_DELTA_CLASS_NO";
 910                         case DT_MIPS_DELTA_INSTANCE:
 911                                 return "MIPS_DELTA_INSTANCE";
 912                         case DT_MIPS_DELTA_INSTANCE_NO:
 913                                 return "MIPS_DELTA_INSTANCE_NO";
 914                         case DT_MIPS_DELTA_RELOC:
 915                                 return "MIPS_DELTA_RELOC";
 916                         case DT_MIPS_DELTA_RELOC_NO:
 917                                 return "MIPS_DELTA_RELOC_NO";
 918                         case DT_MIPS_DELTA_SYM:
 919                                 return "MIPS_DELTA_SYM";
 920                         case DT_MIPS_DELTA_SYM_NO:
 921                                 return "MIPS_DELTA_SYM_NO";
 922                         case DT_MIPS_DELTA_CLASSSYM:
 923                                 return "MIPS_DELTA_CLASSSYM";
 924                         case DT_MIPS_DELTA_CLASSSYM_NO:
 925                                 return "MIPS_DELTA_CLASSSYM_NO";
 926                         case DT_MIPS_CXX_FLAGS:
 927                                 return "MIPS_CXX_FLAGS";
 928                         case DT_MIPS_PIXIE_INIT:
 929                                 return "MIPS_PIXIE_INIT";
 930                         case DT_MIPS_SYMBOL_LIB:
 931                                 return "MIPS_SYMBOL_LIB";
 932                         case DT_MIPS_LOCALPAGE_GOTIDX:
 933                                 return "MIPS_LOCALPAGE_GOTIDX";
 934                         case DT_MIPS_LOCAL_GOTIDX:
 935                                 return "MIPS_LOCAL_GOTIDX";
 936                         case DT_MIPS_HIDDEN_GOTIDX:
 937                                 return "MIPS_HIDDEN_GOTIDX";
 938                         case DT_MIPS_PROTECTED_GOTIDX:
 939                                 return "MIPS_PROTECTED_GOTIDX";
 940                         case DT_MIPS_OPTIONS:
 941                                 return "MIPS_OPTIONS";
 942                         case DT_MIPS_INTERFACE:
 943                                 return "MIPS_INTERFACE";
 944                         case DT_MIPS_DYNSTR_ALIGN:
 945                                 return "MIPS_DYNSTR_ALIGN";
 946                         case DT_MIPS_INTERFACE_SIZE:
 947                                 return "MIPS_INTERFACE_SIZE";
 948                         case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
 949                                 return "MIPS_RLD_TEXT_RESOLVE_ADDR";
 950                         case DT_MIPS_PERF_SUFFIX:
 951                                 return "MIPS_PERF_SUFFIX";
 952                         case DT_MIPS_COMPACT_SIZE:
 953                                 return "MIPS_COMPACT_SIZE";
 954                         case DT_MIPS_GP_VALUE:
 955                                 return "MIPS_GP_VALUE";
 956                         case DT_MIPS_AUX_DYNAMIC:
 957                                 return "MIPS_AUX_DYNAMIC";
 958                         case DT_MIPS_PLTGOT:
 959                                 return "MIPS_PLTGOT";
 960                         case DT_MIPS_RLD_OBJ_UPDATE:
 961                                 return "MIPS_RLD_OBJ_UPDATE";
 962                         case DT_MIPS_RWPLT:
 963                                 return "MIPS_RWPLT";
 964                         default:
 965                                 break;
 966                         }
 967                         break;
 968                 case EM_SPARC:
 969                 case EM_SPARC32PLUS:
 970                 case EM_SPARCV9:
 971                         switch (dtype) {
 972                         case DT_SPARC_REGISTER:
 973                                 return "DT_SPARC_REGISTER";
 974                         default:
 975                                 break;
 976                         }
 977                         break;
 978                 default:
 979                         break;
 980                 }
 981         }
 982
 983         snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
 984         return (s_dtype);
 985 }
 986
 987 static const char *
 988 st_bind(unsigned int sbind)
 989 {
 990         static char s_sbind[32];
 991
 992         switch (sbind) {
 993         case STB_LOCAL: return "LOCAL";
 994         case STB_GLOBAL: return "GLOBAL";
 995         case STB_WEAK: return "WEAK";
 996         case STB_GNU_UNIQUE: return "UNIQUE";
 997         default:
 998                 if (sbind >= STB_LOOS && sbind <= STB_HIOS)
 999                         return "OS";
1000                 else if (sbind >= STB_LOPROC && sbind <= STB_HIPROC)
1001                         return "PROC";
1002                 else
1003                         snprintf(s_sbind, sizeof(s_sbind), "<unknown: %#x>",
1004                             sbind);
1005                 return (s_sbind);
1006         }
1007 }
1008
1009 static const char *
1010 st_type(unsigned int mach, unsigned int os, unsigned int stype)
1011 {
1012         static char s_stype[32];
1013
1014         switch (stype) {
1015         case STT_NOTYPE: return "NOTYPE";
1016         case STT_OBJECT: return "OBJECT";
1017         case STT_FUNC: return "FUNC";
1018         case STT_SECTION: return "SECTION";
1019         case STT_FILE: return "FILE";
1020         case STT_COMMON: return "COMMON";
1021         case STT_TLS: return "TLS";
1022         default:
1023                 if (stype >= STT_LOOS && stype <= STT_HIOS) {
1024                         if ((os == ELFOSABI_GNU || os == ELFOSABI_FREEBSD) &&
1025                             stype == STT_GNU_IFUNC)
1026                                 return "IFUNC";
1027                         snprintf(s_stype, sizeof(s_stype), "OS+%#x",
1028                             stype - STT_LOOS);
1029                 } else if (stype >= STT_LOPROC && stype <= STT_HIPROC) {
1030                         if (mach == EM_SPARCV9 && stype == STT_SPARC_REGISTER)
1031                                 return "REGISTER";
1032                         snprintf(s_stype, sizeof(s_stype), "PROC+%#x",
1033                             stype - STT_LOPROC);
1034                 } else
1035                         snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
1036                             stype);
1037                 return (s_stype);
1038         }
1039 }
1040
1041 static const char *
1042 st_vis(unsigned int svis)
1043 {
1044         static char s_svis[32];
1045
1046         switch(svis) {
1047         case STV_DEFAULT: return "DEFAULT";
1048         case STV_INTERNAL: return "INTERNAL";
1049         case STV_HIDDEN: return "HIDDEN";
1050         case STV_PROTECTED: return "PROTECTED";
1051         default:
1052                 snprintf(s_svis, sizeof(s_svis), "<unknown: %#x>", svis);
1053                 return (s_svis);
1054         }
1055 }
1056
1057 static const char *
1058 st_shndx(unsigned int shndx)
1059 {
1060         static char s_shndx[32];
1061
1062         switch (shndx) {
1063         case SHN_UNDEF: return "UND";
1064         case SHN_ABS: return "ABS";
1065         case SHN_COMMON: return "COM";
1066         default:
1067                 if (shndx >= SHN_LOPROC && shndx <= SHN_HIPROC)
1068                         return "PRC";
1069                 else if (shndx >= SHN_LOOS && shndx <= SHN_HIOS)
1070                         return "OS";
1071                 else
1072                         snprintf(s_shndx, sizeof(s_shndx), "%u", shndx);
1073                 return (s_shndx);
1074         }
1075 }
1076
1077 static struct {
1078         const char *ln;
1079         char sn;
1080         int value;
1081 } section_flag[] = {
1082         {"WRITE", 'W', SHF_WRITE},
1083         {"ALLOC", 'A', SHF_ALLOC},
1084         {"EXEC", 'X', SHF_EXECINSTR},
1085         {"MERGE", 'M', SHF_MERGE},
1086         {"STRINGS", 'S', SHF_STRINGS},
1087         {"INFO LINK", 'I', SHF_INFO_LINK},
1088         {"OS NONCONF", 'O', SHF_OS_NONCONFORMING},
1089         {"GROUP", 'G', SHF_GROUP},
1090         {"TLS", 'T', SHF_TLS},
1091         {"COMPRESSED", 'C', SHF_COMPRESSED},
1092         {NULL, 0, 0}
1093 };
1094
1095 static const char *
1096 note_type(const char *name, unsigned int et, unsigned int nt)
1097 {
1098         if ((strcmp(name, "CORE") == 0 || strcmp(name, "LINUX") == 0) &&
1099             et == ET_CORE)
1100                 return note_type_linux_core(nt);
1101         else if (strcmp(name, "FreeBSD") == 0)
1102                 if (et == ET_CORE)
1103                         return note_type_freebsd_core(nt);
1104                 else
1105                         return note_type_freebsd(nt);
1106         else if (strcmp(name, "GNU") == 0 && et != ET_CORE)
1107                 return note_type_gnu(nt);
1108         else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE)
1109                 return note_type_netbsd(nt);
1110         else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE)
1111                 return note_type_openbsd(nt);
1112         else if (strcmp(name, "Xen") == 0 && et != ET_CORE)
1113                 return note_type_xen(nt);
1114         return note_type_unknown(nt);
1115 }
1116
1117 static const char *
1118 note_type_freebsd(unsigned int nt)
1119 {
1120         switch (nt) {
1121         case 1: return "NT_FREEBSD_ABI_TAG";
1122         case 2: return "NT_FREEBSD_NOINIT_TAG";
1123         case 3: return "NT_FREEBSD_ARCH_TAG";
1124         default: return (note_type_unknown(nt));
1125         }
1126 }
1127
1128 static const char *
1129 note_type_freebsd_core(unsigned int nt)
1130 {
1131         switch (nt) {
1132         case 1: return "NT_PRSTATUS";
1133         case 2: return "NT_FPREGSET";
1134         case 3: return "NT_PRPSINFO";
1135         case 7: return "NT_THRMISC";
1136         case 8: return "NT_PROCSTAT_PROC";
1137         case 9: return "NT_PROCSTAT_FILES";
1138         case 10: return "NT_PROCSTAT_VMMAP";
1139         case 11: return "NT_PROCSTAT_GROUPS";
1140         case 12: return "NT_PROCSTAT_UMASK";
1141         case 13: return "NT_PROCSTAT_RLIMIT";
1142         case 14: return "NT_PROCSTAT_OSREL";
1143         case 15: return "NT_PROCSTAT_PSSTRINGS";
1144         case 16: return "NT_PROCSTAT_AUXV";
1145         case 17: return "NT_PTLWPINFO";
1146         case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1147         case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1148         default: return (note_type_unknown(nt));
1149         }
1150 }
1151
1152 static const char *
1153 note_type_linux_core(unsigned int nt)
1154 {
1155         switch (nt) {
1156         case 1: return "NT_PRSTATUS (Process status)";
1157         case 2: return "NT_FPREGSET (Floating point information)";
1158         case 3: return "NT_PRPSINFO (Process information)";
1159         case 4: return "NT_TASKSTRUCT (Task structure)";
1160         case 6: return "NT_AUXV (Auxiliary vector)";
1161         case 10: return "NT_PSTATUS (Linux process status)";
1162         case 12: return "NT_FPREGS (Linux floating point regset)";
1163         case 13: return "NT_PSINFO (Linux process information)";
1164         case 16: return "NT_LWPSTATUS (Linux lwpstatus_t type)";
1165         case 17: return "NT_LWPSINFO (Linux lwpinfo_t type)";
1166         case 18: return "NT_WIN32PSTATUS (win32_pstatus structure)";
1167         case 0x100: return "NT_PPC_VMX (ppc Altivec registers)";
1168         case 0x102: return "NT_PPC_VSX (ppc VSX registers)";
1169         case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1170         case 0x300: return "NT_S390_HIGH_GPRS (s390 upper register halves)";
1171         case 0x301: return "NT_S390_TIMER (s390 timer register)";
1172         case 0x302: return "NT_S390_TODCMP (s390 TOD comparator register)";
1173         case 0x303: return "NT_S390_TODPREG (s390 TOD programmable register)";
1174         case 0x304: return "NT_S390_CTRS (s390 control registers)";
1175         case 0x305: return "NT_S390_PREFIX (s390 prefix register)";
1176         case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1177         case 0x46494c45UL: return "NT_FILE (mapped files)";
1178         case 0x46E62B7FUL: return "NT_PRXFPREG (Linux user_xfpregs structure)";
1179         case 0x53494749UL: return "NT_SIGINFO (siginfo_t data)";
1180         default: return (note_type_unknown(nt));
1181         }
1182 }
1183
1184 static const char *
1185 note_type_gnu(unsigned int nt)
1186 {
1187         switch (nt) {
1188         case 1: return "NT_GNU_ABI_TAG";
1189         case 2: return "NT_GNU_HWCAP (Hardware capabilities)";
1190         case 3: return "NT_GNU_BUILD_ID (Build id set by ld(1))";
1191         case 4: return "NT_GNU_GOLD_VERSION (GNU gold version)";
1192         case 5: return "NT_GNU_PROPERTY_TYPE_0";
1193         default: return (note_type_unknown(nt));
1194         }
1195 }
1196
1197 static const char *
1198 note_type_netbsd(unsigned int nt)
1199 {
1200         switch (nt) {
1201         case 1: return "NT_NETBSD_IDENT";
1202         default: return (note_type_unknown(nt));
1203         }
1204 }
1205
1206 static const char *
1207 note_type_openbsd(unsigned int nt)
1208 {
1209         switch (nt) {
1210         case 1: return "NT_OPENBSD_IDENT";
1211         default: return (note_type_unknown(nt));
1212         }
1213 }
1214
1215 static const char *
1216 note_type_unknown(unsigned int nt)
1217 {
1218         static char s_nt[32];
1219
1220         snprintf(s_nt, sizeof(s_nt),
1221             nt >= 0x100 ? "<unknown: 0x%x>" : "<unknown: %u>", nt);
1222         return (s_nt);
1223 }
1224
1225 static const char *
1226 note_type_xen(unsigned int nt)
1227 {
1228         switch (nt) {
1229         case 0: return "XEN_ELFNOTE_INFO";
1230         case 1: return "XEN_ELFNOTE_ENTRY";
1231         case 2: return "XEN_ELFNOTE_HYPERCALL_PAGE";
1232         case 3: return "XEN_ELFNOTE_VIRT_BASE";
1233         case 4: return "XEN_ELFNOTE_PADDR_OFFSET";
1234         case 5: return "XEN_ELFNOTE_XEN_VERSION";
1235         case 6: return "XEN_ELFNOTE_GUEST_OS";
1236         case 7: return "XEN_ELFNOTE_GUEST_VERSION";
1237         case 8: return "XEN_ELFNOTE_LOADER";
1238         case 9: return "XEN_ELFNOTE_PAE_MODE";
1239         case 10: return "XEN_ELFNOTE_FEATURES";
1240         case 11: return "XEN_ELFNOTE_BSD_SYMTAB";
1241         case 12: return "XEN_ELFNOTE_HV_START_LOW";
1242         case 13: return "XEN_ELFNOTE_L1_MFN_VALID";
1243         case 14: return "XEN_ELFNOTE_SUSPEND_CANCEL";
1244         case 15: return "XEN_ELFNOTE_INIT_P2M";
1245         case 16: return "XEN_ELFNOTE_MOD_START_PFN";
1246         case 17: return "XEN_ELFNOTE_SUPPORTED_FEATURES";
1247         default: return (note_type_unknown(nt));
1248         }
1249 }
1250
1251 static struct {
1252         const char *name;
1253         int value;
1254 } l_flag[] = {
1255         {"EXACT_MATCH", LL_EXACT_MATCH},
1256         {"IGNORE_INT_VER", LL_IGNORE_INT_VER},
1257         {"REQUIRE_MINOR", LL_REQUIRE_MINOR},
1258         {"EXPORTS", LL_EXPORTS},
1259         {"DELAY_LOAD", LL_DELAY_LOAD},
1260         {"DELTA", LL_DELTA},
1261         {NULL, 0}
1262 };
1263
1264 static struct mips_option mips_exceptions_option[] = {
1265         {OEX_PAGE0, "PAGE0"},
1266         {OEX_SMM, "SMM"},
1267         {OEX_PRECISEFP, "PRECISEFP"},
1268         {OEX_DISMISS, "DISMISS"},
1269         {0, NULL}
1270 };
1271
1272 static struct mips_option mips_pad_option[] = {
1273         {OPAD_PREFIX, "PREFIX"},
1274         {OPAD_POSTFIX, "POSTFIX"},
1275         {OPAD_SYMBOL, "SYMBOL"},
1276         {0, NULL}
1277 };
1278
1279 static struct mips_option mips_hwpatch_option[] = {
1280         {OHW_R4KEOP, "R4KEOP"},
1281         {OHW_R8KPFETCH, "R8KPFETCH"},
1282         {OHW_R5KEOP, "R5KEOP"},
1283         {OHW_R5KCVTL, "R5KCVTL"},
1284         {0, NULL}
1285 };
1286
1287 static struct mips_option mips_hwa_option[] = {
1288         {OHWA0_R4KEOP_CHECKED, "R4KEOP_CHECKED"},
1289         {OHWA0_R4KEOP_CLEAN, "R4KEOP_CLEAN"},
1290         {0, NULL}
1291 };
1292
1293 static struct mips_option mips_hwo_option[] = {
1294         {OHWO0_FIXADE, "FIXADE"},
1295         {0, NULL}
1296 };
1297
1298 static const char *
1299 option_kind(uint8_t kind)
1300 {
1301         static char s_kind[32];
1302
1303         switch (kind) {
1304         case ODK_NULL: return "NULL";
1305         case ODK_REGINFO: return "REGINFO";
1306         case ODK_EXCEPTIONS: return "EXCEPTIONS";
1307         case ODK_PAD: return "PAD";
1308         case ODK_HWPATCH: return "HWPATCH";
1309         case ODK_FILL: return "FILL";
1310         case ODK_TAGS: return "TAGS";
1311         case ODK_HWAND: return "HWAND";
1312         case ODK_HWOR: return "HWOR";
1313         case ODK_GP_GROUP: return "GP_GROUP";
1314         case ODK_IDENT: return "IDENT";
1315         default:
1316                 snprintf(s_kind, sizeof(s_kind), "<unknown: %u>", kind);
1317                 return (s_kind);
1318         }
1319 }
1320
1321 static const char *
1322 top_tag(unsigned int tag)
1323 {
1324         static char s_top_tag[32];
1325
1326         switch (tag) {
1327         case 1: return "File Attributes";
1328         case 2: return "Section Attributes";
1329         case 3: return "Symbol Attributes";
1330         default:
1331                 snprintf(s_top_tag, sizeof(s_top_tag), "Unknown tag: %u", tag);
1332                 return (s_top_tag);
1333         }
1334 }
1335
1336 static const char *
1337 aeabi_cpu_arch(uint64_t arch)
1338 {
1339         static char s_cpu_arch[32];
1340
1341         switch (arch) {
1342         case 0: return "Pre-V4";
1343         case 1: return "ARM v4";
1344         case 2: return "ARM v4T";
1345         case 3: return "ARM v5T";
1346         case 4: return "ARM v5TE";
1347         case 5: return "ARM v5TEJ";
1348         case 6: return "ARM v6";
1349         case 7: return "ARM v6KZ";
1350         case 8: return "ARM v6T2";
1351         case 9: return "ARM v6K";
1352         case 10: return "ARM v7";
1353         case 11: return "ARM v6-M";
1354         case 12: return "ARM v6S-M";
1355         case 13: return "ARM v7E-M";
1356         default:
1357                 snprintf(s_cpu_arch, sizeof(s_cpu_arch),
1358                     "Unknown (%ju)", (uintmax_t) arch);
1359                 return (s_cpu_arch);
1360         }
1361 }
1362
1363 static const char *
1364 aeabi_cpu_arch_profile(uint64_t pf)
1365 {
1366         static char s_arch_profile[32];
1367
1368         switch (pf) {
1369         case 0:
1370                 return "Not applicable";
1371         case 0x41:              /* 'A' */
1372                 return "Application Profile";
1373         case 0x52:              /* 'R' */
1374                 return "Real-Time Profile";
1375         case 0x4D:              /* 'M' */
1376                 return "Microcontroller Profile";
1377         case 0x53:              /* 'S' */
1378                 return "Application or Real-Time Profile";
1379         default:
1380                 snprintf(s_arch_profile, sizeof(s_arch_profile),
1381                     "Unknown (%ju)\n", (uintmax_t) pf);
1382                 return (s_arch_profile);
1383         }
1384 }
1385
1386 static const char *
1387 aeabi_arm_isa(uint64_t ai)
1388 {
1389         static char s_ai[32];
1390
1391         switch (ai) {
1392         case 0: return "No";
1393         case 1: return "Yes";
1394         default:
1395                 snprintf(s_ai, sizeof(s_ai), "Unknown (%ju)\n",
1396                     (uintmax_t) ai);
1397                 return (s_ai);
1398         }
1399 }
1400
1401 static const char *
1402 aeabi_thumb_isa(uint64_t ti)
1403 {
1404         static char s_ti[32];
1405
1406         switch (ti) {
1407         case 0: return "No";
1408         case 1: return "16-bit Thumb";
1409         case 2: return "32-bit Thumb";
1410         default:
1411                 snprintf(s_ti, sizeof(s_ti), "Unknown (%ju)\n",
1412                     (uintmax_t) ti);
1413                 return (s_ti);
1414         }
1415 }
1416
1417 static const char *
1418 aeabi_fp_arch(uint64_t fp)
1419 {
1420         static char s_fp_arch[32];
1421
1422         switch (fp) {
1423         case 0: return "No";
1424         case 1: return "VFPv1";
1425         case 2: return "VFPv2";
1426         case 3: return "VFPv3";
1427         case 4: return "VFPv3-D16";
1428         case 5: return "VFPv4";
1429         case 6: return "VFPv4-D16";
1430         default:
1431                 snprintf(s_fp_arch, sizeof(s_fp_arch), "Unknown (%ju)",
1432                     (uintmax_t) fp);
1433                 return (s_fp_arch);
1434         }
1435 }
1436
1437 static const char *
1438 aeabi_wmmx_arch(uint64_t wmmx)
1439 {
1440         static char s_wmmx[32];
1441
1442         switch (wmmx) {
1443         case 0: return "No";
1444         case 1: return "WMMXv1";
1445         case 2: return "WMMXv2";
1446         default:
1447                 snprintf(s_wmmx, sizeof(s_wmmx), "Unknown (%ju)",
1448                     (uintmax_t) wmmx);
1449                 return (s_wmmx);
1450         }
1451 }
1452
1453 static const char *
1454 aeabi_adv_simd_arch(uint64_t simd)
1455 {
1456         static char s_simd[32];
1457
1458         switch (simd) {
1459         case 0: return "No";
1460         case 1: return "NEONv1";
1461         case 2: return "NEONv2";
1462         default:
1463                 snprintf(s_simd, sizeof(s_simd), "Unknown (%ju)",
1464                     (uintmax_t) simd);
1465                 return (s_simd);
1466         }
1467 }
1468
1469 static const char *
1470 aeabi_pcs_config(uint64_t pcs)
1471 {
1472         static char s_pcs[32];
1473
1474         switch (pcs) {
1475         case 0: return "None";
1476         case 1: return "Bare platform";
1477         case 2: return "Linux";
1478         case 3: return "Linux DSO";
1479         case 4: return "Palm OS 2004";
1480         case 5: return "Palm OS (future)";
1481         case 6: return "Symbian OS 2004";
1482         case 7: return "Symbian OS (future)";
1483         default:
1484                 snprintf(s_pcs, sizeof(s_pcs), "Unknown (%ju)",
1485                     (uintmax_t) pcs);
1486                 return (s_pcs);
1487         }
1488 }
1489
1490 static const char *
1491 aeabi_pcs_r9(uint64_t r9)
1492 {
1493         static char s_r9[32];
1494
1495         switch (r9) {
1496         case 0: return "V6";
1497         case 1: return "SB";
1498         case 2: return "TLS pointer";
1499         case 3: return "Unused";
1500         default:
1501                 snprintf(s_r9, sizeof(s_r9), "Unknown (%ju)", (uintmax_t) r9);
1502                 return (s_r9);
1503         }
1504 }
1505
1506 static const char *
1507 aeabi_pcs_rw(uint64_t rw)
1508 {
1509         static char s_rw[32];
1510
1511         switch (rw) {
1512         case 0: return "Absolute";
1513         case 1: return "PC-relative";
1514         case 2: return "SB-relative";
1515         case 3: return "None";
1516         default:
1517                 snprintf(s_rw, sizeof(s_rw), "Unknown (%ju)", (uintmax_t) rw);
1518                 return (s_rw);
1519         }
1520 }
1521
1522 static const char *
1523 aeabi_pcs_ro(uint64_t ro)
1524 {
1525         static char s_ro[32];
1526
1527         switch (ro) {
1528         case 0: return "Absolute";
1529         case 1: return "PC-relative";
1530         case 2: return "None";
1531         default:
1532                 snprintf(s_ro, sizeof(s_ro), "Unknown (%ju)", (uintmax_t) ro);
1533                 return (s_ro);
1534         }
1535 }
1536
1537 static const char *
1538 aeabi_pcs_got(uint64_t got)
1539 {
1540         static char s_got[32];
1541
1542         switch (got) {
1543         case 0: return "None";
1544         case 1: return "direct";
1545         case 2: return "indirect via GOT";
1546         default:
1547                 snprintf(s_got, sizeof(s_got), "Unknown (%ju)",
1548                     (uintmax_t) got);
1549                 return (s_got);
1550         }
1551 }
1552
1553 static const char *
1554 aeabi_pcs_wchar_t(uint64_t wt)
1555 {
1556         static char s_wt[32];
1557
1558         switch (wt) {
1559         case 0: return "None";
1560         case 2: return "wchar_t size 2";
1561         case 4: return "wchar_t size 4";
1562         default:
1563                 snprintf(s_wt, sizeof(s_wt), "Unknown (%ju)", (uintmax_t) wt);
1564                 return (s_wt);
1565         }
1566 }
1567
1568 static const char *
1569 aeabi_enum_size(uint64_t es)
1570 {
1571         static char s_es[32];
1572
1573         switch (es) {
1574         case 0: return "None";
1575         case 1: return "smallest";
1576         case 2: return "32-bit";
1577         case 3: return "visible 32-bit";
1578         default:
1579                 snprintf(s_es, sizeof(s_es), "Unknown (%ju)", (uintmax_t) es);
1580                 return (s_es);
1581         }
1582 }
1583
1584 static const char *
1585 aeabi_align_needed(uint64_t an)
1586 {
1587         static char s_align_n[64];
1588
1589         switch (an) {
1590         case 0: return "No";
1591         case 1: return "8-byte align";
1592         case 2: return "4-byte align";
1593         case 3: return "Reserved";
1594         default:
1595                 if (an >= 4 && an <= 12)
1596                         snprintf(s_align_n, sizeof(s_align_n), "8-byte align"
1597                             " and up to 2^%ju-byte extended align",
1598                             (uintmax_t) an);
1599                 else
1600                         snprintf(s_align_n, sizeof(s_align_n), "Unknown (%ju)",
1601                             (uintmax_t) an);
1602                 return (s_align_n);
1603         }
1604 }
1605
1606 static const char *
1607 aeabi_align_preserved(uint64_t ap)
1608 {
1609         static char s_align_p[128];
1610
1611         switch (ap) {
1612         case 0: return "No";
1613         case 1: return "8-byte align";
1614         case 2: return "8-byte align and SP % 8 == 0";
1615         case 3: return "Reserved";
1616         default:
1617                 if (ap >= 4 && ap <= 12)
1618                         snprintf(s_align_p, sizeof(s_align_p), "8-byte align"
1619                             " and SP %% 8 == 0 and up to 2^%ju-byte extended"
1620                             " align", (uintmax_t) ap);
1621                 else
1622                         snprintf(s_align_p, sizeof(s_align_p), "Unknown (%ju)",
1623                             (uintmax_t) ap);
1624                 return (s_align_p);
1625         }
1626 }
1627
1628 static const char *
1629 aeabi_fp_rounding(uint64_t fr)
1630 {
1631         static char s_fp_r[32];
1632
1633         switch (fr) {
1634         case 0: return "Unused";
1635         case 1: return "Needed";
1636         default:
1637                 snprintf(s_fp_r, sizeof(s_fp_r), "Unknown (%ju)",
1638                     (uintmax_t) fr);
1639                 return (s_fp_r);
1640         }
1641 }
1642
1643 static const char *
1644 aeabi_fp_denormal(uint64_t fd)
1645 {
1646         static char s_fp_d[32];
1647
1648         switch (fd) {
1649         case 0: return "Unused";
1650         case 1: return "Needed";
1651         case 2: return "Sign Only";
1652         default:
1653                 snprintf(s_fp_d, sizeof(s_fp_d), "Unknown (%ju)",
1654                     (uintmax_t) fd);
1655                 return (s_fp_d);
1656         }
1657 }
1658
1659 static const char *
1660 aeabi_fp_exceptions(uint64_t fe)
1661 {
1662         static char s_fp_e[32];
1663
1664         switch (fe) {
1665         case 0: return "Unused";
1666         case 1: return "Needed";
1667         default:
1668                 snprintf(s_fp_e, sizeof(s_fp_e), "Unknown (%ju)",
1669                     (uintmax_t) fe);
1670                 return (s_fp_e);
1671         }
1672 }
1673
1674 static const char *
1675 aeabi_fp_user_exceptions(uint64_t fu)
1676 {
1677         static char s_fp_u[32];
1678
1679         switch (fu) {
1680         case 0: return "Unused";
1681         case 1: return "Needed";
1682         default:
1683                 snprintf(s_fp_u, sizeof(s_fp_u), "Unknown (%ju)",
1684                     (uintmax_t) fu);
1685                 return (s_fp_u);
1686         }
1687 }
1688
1689 static const char *
1690 aeabi_fp_number_model(uint64_t fn)
1691 {
1692         static char s_fp_n[32];
1693
1694         switch (fn) {
1695         case 0: return "Unused";
1696         case 1: return "IEEE 754 normal";
1697         case 2: return "RTABI";
1698         case 3: return "IEEE 754";
1699         default:
1700                 snprintf(s_fp_n, sizeof(s_fp_n), "Unknown (%ju)",
1701                     (uintmax_t) fn);
1702                 return (s_fp_n);
1703         }
1704 }
1705
1706 static const char *
1707 aeabi_fp_16bit_format(uint64_t fp16)
1708 {
1709         static char s_fp_16[64];
1710
1711         switch (fp16) {
1712         case 0: return "None";
1713         case 1: return "IEEE 754";
1714         case 2: return "VFPv3/Advanced SIMD (alternative format)";
1715         default:
1716                 snprintf(s_fp_16, sizeof(s_fp_16), "Unknown (%ju)",
1717                     (uintmax_t) fp16);
1718                 return (s_fp_16);
1719         }
1720 }
1721
1722 static const char *
1723 aeabi_mpext(uint64_t mp)
1724 {
1725         static char s_mp[32];
1726
1727         switch (mp) {
1728         case 0: return "Not allowed";
1729         case 1: return "Allowed";
1730         default:
1731                 snprintf(s_mp, sizeof(s_mp), "Unknown (%ju)",
1732                     (uintmax_t) mp);
1733                 return (s_mp);
1734         }
1735 }
1736
1737 static const char *
1738 aeabi_div(uint64_t du)
1739 {
1740         static char s_du[32];
1741
1742         switch (du) {
1743         case 0: return "Yes (V7-R/V7-M)";
1744         case 1: return "No";
1745         case 2: return "Yes (V7-A)";
1746         default:
1747                 snprintf(s_du, sizeof(s_du), "Unknown (%ju)",
1748                     (uintmax_t) du);
1749                 return (s_du);
1750         }
1751 }
1752
1753 static const char *
1754 aeabi_t2ee(uint64_t t2ee)
1755 {
1756         static char s_t2ee[32];
1757
1758         switch (t2ee) {
1759         case 0: return "Not allowed";
1760         case 1: return "Allowed";
1761         default:
1762                 snprintf(s_t2ee, sizeof(s_t2ee), "Unknown(%ju)",
1763                     (uintmax_t) t2ee);
1764                 return (s_t2ee);
1765         }
1766
1767 }
1768
1769 static const char *
1770 aeabi_hardfp(uint64_t hfp)
1771 {
1772         static char s_hfp[32];
1773
1774         switch (hfp) {
1775         case 0: return "Tag_FP_arch";
1776         case 1: return "only SP";
1777         case 2: return "only DP";
1778         case 3: return "both SP and DP";
1779         default:
1780                 snprintf(s_hfp, sizeof(s_hfp), "Unknown (%ju)",
1781                     (uintmax_t) hfp);
1782                 return (s_hfp);
1783         }
1784 }
1785
1786 static const char *
1787 aeabi_vfp_args(uint64_t va)
1788 {
1789         static char s_va[32];
1790
1791         switch (va) {
1792         case 0: return "AAPCS (base variant)";
1793         case 1: return "AAPCS (VFP variant)";
1794         case 2: return "toolchain-specific";
1795         default:
1796                 snprintf(s_va, sizeof(s_va), "Unknown (%ju)", (uintmax_t) va);
1797                 return (s_va);
1798         }
1799 }
1800
1801 static const char *
1802 aeabi_wmmx_args(uint64_t wa)
1803 {
1804         static char s_wa[32];
1805
1806         switch (wa) {
1807         case 0: return "AAPCS (base variant)";
1808         case 1: return "Intel WMMX";
1809         case 2: return "toolchain-specific";
1810         default:
1811                 snprintf(s_wa, sizeof(s_wa), "Unknown(%ju)", (uintmax_t) wa);
1812                 return (s_wa);
1813         }
1814 }
1815
1816 static const char *
1817 aeabi_unaligned_access(uint64_t ua)
1818 {
1819         static char s_ua[32];
1820
1821         switch (ua) {
1822         case 0: return "Not allowed";
1823         case 1: return "Allowed";
1824         default:
1825                 snprintf(s_ua, sizeof(s_ua), "Unknown(%ju)", (uintmax_t) ua);
1826                 return (s_ua);
1827         }
1828 }
1829
1830 static const char *
1831 aeabi_fp_hpext(uint64_t fh)
1832 {
1833         static char s_fh[32];
1834
1835         switch (fh) {
1836         case 0: return "Not allowed";
1837         case 1: return "Allowed";
1838         default:
1839                 snprintf(s_fh, sizeof(s_fh), "Unknown(%ju)", (uintmax_t) fh);
1840                 return (s_fh);
1841         }
1842 }
1843
1844 static const char *
1845 aeabi_optm_goal(uint64_t og)
1846 {
1847         static char s_og[32];
1848
1849         switch (og) {
1850         case 0: return "None";
1851         case 1: return "Speed";
1852         case 2: return "Speed aggressive";
1853         case 3: return "Space";
1854         case 4: return "Space aggressive";
1855         case 5: return "Debugging";
1856         case 6: return "Best Debugging";
1857         default:
1858                 snprintf(s_og, sizeof(s_og), "Unknown(%ju)", (uintmax_t) og);
1859                 return (s_og);
1860         }
1861 }
1862
1863 static const char *
1864 aeabi_fp_optm_goal(uint64_t fog)
1865 {
1866         static char s_fog[32];
1867
1868         switch (fog) {
1869         case 0: return "None";
1870         case 1: return "Speed";
1871         case 2: return "Speed aggressive";
1872         case 3: return "Space";
1873         case 4: return "Space aggressive";
1874         case 5: return "Accurary";
1875         case 6: return "Best Accurary";
1876         default:
1877                 snprintf(s_fog, sizeof(s_fog), "Unknown(%ju)",
1878                     (uintmax_t) fog);
1879                 return (s_fog);
1880         }
1881 }
1882
1883 static const char *
1884 aeabi_virtual(uint64_t vt)
1885 {
1886         static char s_virtual[64];
1887
1888         switch (vt) {
1889         case 0: return "No";
1890         case 1: return "TrustZone";
1891         case 2: return "Virtualization extension";
1892         case 3: return "TrustZone and virtualization extension";
1893         default:
1894                 snprintf(s_virtual, sizeof(s_virtual), "Unknown(%ju)",
1895                     (uintmax_t) vt);
1896                 return (s_virtual);
1897         }
1898 }
1899
1900 static struct {
1901         uint64_t tag;
1902         const char *s_tag;
1903         const char *(*get_desc)(uint64_t val);
1904 } aeabi_tags[] = {
1905         {4, "Tag_CPU_raw_name", NULL},
1906         {5, "Tag_CPU_name", NULL},
1907         {6, "Tag_CPU_arch", aeabi_cpu_arch},
1908         {7, "Tag_CPU_arch_profile", aeabi_cpu_arch_profile},
1909         {8, "Tag_ARM_ISA_use", aeabi_arm_isa},
1910         {9, "Tag_THUMB_ISA_use", aeabi_thumb_isa},
1911         {10, "Tag_FP_arch", aeabi_fp_arch},
1912         {11, "Tag_WMMX_arch", aeabi_wmmx_arch},
1913         {12, "Tag_Advanced_SIMD_arch", aeabi_adv_simd_arch},
1914         {13, "Tag_PCS_config", aeabi_pcs_config},
1915         {14, "Tag_ABI_PCS_R9_use", aeabi_pcs_r9},
1916         {15, "Tag_ABI_PCS_RW_data", aeabi_pcs_rw},
1917         {16, "Tag_ABI_PCS_RO_data", aeabi_pcs_ro},
1918         {17, "Tag_ABI_PCS_GOT_use", aeabi_pcs_got},
1919         {18, "Tag_ABI_PCS_wchar_t", aeabi_pcs_wchar_t},
1920         {19, "Tag_ABI_FP_rounding", aeabi_fp_rounding},
1921         {20, "Tag_ABI_FP_denormal", aeabi_fp_denormal},
1922         {21, "Tag_ABI_FP_exceptions", aeabi_fp_exceptions},
1923         {22, "Tag_ABI_FP_user_exceptions", aeabi_fp_user_exceptions},
1924         {23, "Tag_ABI_FP_number_model", aeabi_fp_number_model},
1925         {24, "Tag_ABI_align_needed", aeabi_align_needed},
1926         {25, "Tag_ABI_align_preserved", aeabi_align_preserved},
1927         {26, "Tag_ABI_enum_size", aeabi_enum_size},
1928         {27, "Tag_ABI_HardFP_use", aeabi_hardfp},
1929         {28, "Tag_ABI_VFP_args", aeabi_vfp_args},
1930         {29, "Tag_ABI_WMMX_args", aeabi_wmmx_args},
1931         {30, "Tag_ABI_optimization_goals", aeabi_optm_goal},
1932         {31, "Tag_ABI_FP_optimization_goals", aeabi_fp_optm_goal},
1933         {32, "Tag_compatibility", NULL},
1934         {34, "Tag_CPU_unaligned_access", aeabi_unaligned_access},
1935         {36, "Tag_FP_HP_extension", aeabi_fp_hpext},
1936         {38, "Tag_ABI_FP_16bit_format", aeabi_fp_16bit_format},
1937         {42, "Tag_MPextension_use", aeabi_mpext},
1938         {44, "Tag_DIV_use", aeabi_div},
1939         {64, "Tag_nodefaults", NULL},
1940         {65, "Tag_also_compatible_with", NULL},
1941         {66, "Tag_T2EE_use", aeabi_t2ee},
1942         {67, "Tag_conformance", NULL},
1943         {68, "Tag_Virtualization_use", aeabi_virtual},
1944         {70, "Tag_MPextension_use", aeabi_mpext},
1945 };
1946
1947 static const char *
1948 mips_abi_fp(uint64_t fp)
1949 {
1950         static char s_mips_abi_fp[64];
1951
1952         switch (fp) {
1953         case 0: return "N/A";
1954         case 1: return "Hard float (double precision)";
1955         case 2: return "Hard float (single precision)";
1956         case 3: return "Soft float";
1957         case 4: return "64-bit float (-mips32r2 -mfp64)";
1958         default:
1959                 snprintf(s_mips_abi_fp, sizeof(s_mips_abi_fp), "Unknown(%ju)",
1960                     (uintmax_t) fp);
1961                 return (s_mips_abi_fp);
1962         }
1963 }
1964
1965 static const char *
1966 ppc_abi_fp(uint64_t fp)
1967 {
1968         static char s_ppc_abi_fp[64];
1969
1970         switch (fp) {
1971         case 0: return "N/A";
1972         case 1: return "Hard float (double precision)";
1973         case 2: return "Soft float";
1974         case 3: return "Hard float (single precision)";
1975         default:
1976                 snprintf(s_ppc_abi_fp, sizeof(s_ppc_abi_fp), "Unknown(%ju)",
1977                     (uintmax_t) fp);
1978                 return (s_ppc_abi_fp);
1979         }
1980 }
1981
1982 static const char *
1983 ppc_abi_vector(uint64_t vec)
1984 {
1985         static char s_vec[64];
1986
1987         switch (vec) {
1988         case 0: return "N/A";
1989         case 1: return "Generic purpose registers";
1990         case 2: return "AltiVec registers";
1991         case 3: return "SPE registers";
1992         default:
1993                 snprintf(s_vec, sizeof(s_vec), "Unknown(%ju)", (uintmax_t) vec);
1994                 return (s_vec);
1995         }
1996 }
1997
1998 static const char *
1999 dwarf_reg(unsigned int mach, unsigned int reg)
2000 {
2001
2002         switch (mach) {
2003         case EM_386:
2004         case EM_IAMCU:
2005                 switch (reg) {
2006                 case 0: return "eax";
2007                 case 1: return "ecx";
2008                 case 2: return "edx";
2009                 case 3: return "ebx";
2010                 case 4: return "esp";
2011                 case 5: return "ebp";
2012                 case 6: return "esi";
2013                 case 7: return "edi";
2014                 case 8: return "eip";
2015                 case 9: return "eflags";
2016                 case 11: return "st0";
2017                 case 12: return "st1";
2018                 case 13: return "st2";
2019                 case 14: return "st3";
2020                 case 15: return "st4";
2021                 case 16: return "st5";
2022                 case 17: return "st6";
2023                 case 18: return "st7";
2024                 case 21: return "xmm0";
2025                 case 22: return "xmm1";
2026                 case 23: return "xmm2";
2027                 case 24: return "xmm3";
2028                 case 25: return "xmm4";
2029                 case 26: return "xmm5";
2030                 case 27: return "xmm6";
2031                 case 28: return "xmm7";
2032                 case 29: return "mm0";
2033                 case 30: return "mm1";
2034                 case 31: return "mm2";
2035                 case 32: return "mm3";
2036                 case 33: return "mm4";
2037                 case 34: return "mm5";
2038                 case 35: return "mm6";
2039                 case 36: return "mm7";
2040                 case 37: return "fcw";
2041                 case 38: return "fsw";
2042                 case 39: return "mxcsr";
2043                 case 40: return "es";
2044                 case 41: return "cs";
2045                 case 42: return "ss";
2046                 case 43: return "ds";
2047                 case 44: return "fs";
2048                 case 45: return "gs";
2049                 case 48: return "tr";
2050                 case 49: return "ldtr";
2051                 default: return (NULL);
2052                 }
2053         case EM_X86_64:
2054                 switch (reg) {
2055                 case 0: return "rax";
2056                 case 1: return "rdx";
2057                 case 2: return "rcx";
2058                 case 3: return "rbx";
2059                 case 4: return "rsi";
2060                 case 5: return "rdi";
2061                 case 6: return "rbp";
2062                 case 7: return "rsp";
2063                 case 16: return "rip";
2064                 case 17: return "xmm0";
2065                 case 18: return "xmm1";
2066                 case 19: return "xmm2";
2067                 case 20: return "xmm3";
2068                 case 21: return "xmm4";
2069                 case 22: return "xmm5";
2070                 case 23: return "xmm6";
2071                 case 24: return "xmm7";
2072                 case 25: return "xmm8";
2073                 case 26: return "xmm9";
2074                 case 27: return "xmm10";
2075                 case 28: return "xmm11";
2076                 case 29: return "xmm12";
2077                 case 30: return "xmm13";
2078                 case 31: return "xmm14";
2079                 case 32: return "xmm15";
2080                 case 33: return "st0";
2081                 case 34: return "st1";
2082                 case 35: return "st2";
2083                 case 36: return "st3";
2084                 case 37: return "st4";
2085                 case 38: return "st5";
2086                 case 39: return "st6";
2087                 case 40: return "st7";
2088                 case 41: return "mm0";
2089                 case 42: return "mm1";
2090                 case 43: return "mm2";
2091                 case 44: return "mm3";
2092                 case 45: return "mm4";
2093                 case 46: return "mm5";
2094                 case 47: return "mm6";
2095                 case 48: return "mm7";
2096                 case 49: return "rflags";
2097                 case 50: return "es";
2098                 case 51: return "cs";
2099                 case 52: return "ss";
2100                 case 53: return "ds";
2101                 case 54: return "fs";
2102                 case 55: return "gs";
2103                 case 58: return "fs.base";
2104                 case 59: return "gs.base";
2105                 case 62: return "tr";
2106                 case 63: return "ldtr";
2107                 case 64: return "mxcsr";
2108                 case 65: return "fcw";
2109                 case 66: return "fsw";
2110                 default: return (NULL);
2111                 }
2112         default:
2113                 return (NULL);
2114         }
2115 }
2116
2117 static void
2118 dump_ehdr(struct readelf *re)
2119 {
2120         size_t           phnum, shnum, shstrndx;
2121         int              i;
2122
2123         printf("ELF Header:\n");
2124
2125         /* e_ident[]. */
2126         printf("  Magic:   ");
2127         for (i = 0; i < EI_NIDENT; i++)
2128                 printf("%.2x ", re->ehdr.e_ident[i]);
2129         putchar('\n');
2130
2131         /* EI_CLASS. */
2132         printf("%-37s%s\n", "  Class:", elf_class(re->ehdr.e_ident[EI_CLASS]));
2133
2134         /* EI_DATA. */
2135         printf("%-37s%s\n", "  Data:", elf_endian(re->ehdr.e_ident[EI_DATA]));
2136
2137         /* EI_VERSION. */
2138         printf("%-37s%d %s\n", "  Version:", re->ehdr.e_ident[EI_VERSION],
2139             elf_ver(re->ehdr.e_ident[EI_VERSION]));
2140
2141         /* EI_OSABI. */
2142         printf("%-37s%s\n", "  OS/ABI:", elf_osabi(re->ehdr.e_ident[EI_OSABI]));
2143
2144         /* EI_ABIVERSION. */
2145         printf("%-37s%d\n", "  ABI Version:", re->ehdr.e_ident[EI_ABIVERSION]);
2146
2147         /* e_type. */
2148         printf("%-37s%s\n", "  Type:", elf_type(re->ehdr.e_type));
2149
2150         /* e_machine. */
2151         printf("%-37s%s\n", "  Machine:", elf_machine(re->ehdr.e_machine));
2152
2153         /* e_version. */
2154         printf("%-37s%#x\n", "  Version:", re->ehdr.e_version);
2155
2156         /* e_entry. */
2157         printf("%-37s%#jx\n", "  Entry point address:",
2158             (uintmax_t)re->ehdr.e_entry);
2159
2160         /* e_phoff. */
2161         printf("%-37s%ju (bytes into file)\n", "  Start of program headers:",
2162             (uintmax_t)re->ehdr.e_phoff);
2163
2164         /* e_shoff. */
2165         printf("%-37s%ju (bytes into file)\n", "  Start of section headers:",
2166             (uintmax_t)re->ehdr.e_shoff);
2167
2168         /* e_flags. */
2169         printf("%-37s%#x", "  Flags:", re->ehdr.e_flags);
2170         dump_eflags(re, re->ehdr.e_flags);
2171         putchar('\n');
2172
2173         /* e_ehsize. */
2174         printf("%-37s%u (bytes)\n", "  Size of this header:",
2175             re->ehdr.e_ehsize);
2176
2177         /* e_phentsize. */
2178         printf("%-37s%u (bytes)\n", "  Size of program headers:",
2179             re->ehdr.e_phentsize);
2180
2181         /* e_phnum. */
2182         printf("%-37s%u", "  Number of program headers:", re->ehdr.e_phnum);
2183         if (re->ehdr.e_phnum == PN_XNUM) {
2184                 /* Extended program header numbering is in use. */
2185                 if (elf_getphnum(re->elf, &phnum))
2186                         printf(" (%zu)", phnum);
2187         }
2188         putchar('\n');
2189
2190         /* e_shentsize. */
2191         printf("%-37s%u (bytes)\n", "  Size of section headers:",
2192             re->ehdr.e_shentsize);
2193
2194         /* e_shnum. */
2195         printf("%-37s%u", "  Number of section headers:", re->ehdr.e_shnum);
2196         if (re->ehdr.e_shnum == SHN_UNDEF) {
2197                 /* Extended section numbering is in use. */
2198                 if (elf_getshnum(re->elf, &shnum))
2199                         printf(" (%ju)", (uintmax_t)shnum);
2200         }
2201         putchar('\n');
2202
2203         /* e_shstrndx. */
2204         printf("%-37s%u", "  Section header string table index:",
2205             re->ehdr.e_shstrndx);
2206         if (re->ehdr.e_shstrndx == SHN_XINDEX) {
2207                 /* Extended section numbering is in use. */
2208                 if (elf_getshstrndx(re->elf, &shstrndx))
2209                         printf(" (%ju)", (uintmax_t)shstrndx);
2210         }
2211         putchar('\n');
2212 }
2213
2214 static void
2215 dump_eflags(struct readelf *re, uint64_t e_flags)
2216 {
2217         struct eflags_desc *edesc;
2218         int arm_eabi;
2219
2220         edesc = NULL;
2221         switch (re->ehdr.e_machine) {
2222         case EM_ARM:
2223                 arm_eabi = (e_flags & EF_ARM_EABIMASK) >> 24;
2224                 if (arm_eabi == 0)
2225                         printf(", GNU EABI");
2226                 else if (arm_eabi <= 5)
2227                         printf(", Version%d EABI", arm_eabi);
2228                 edesc = arm_eflags_desc;
2229                 break;
2230         case EM_MIPS:
2231         case EM_MIPS_RS3_LE:
2232                 switch ((e_flags & EF_MIPS_ARCH) >> 28) {
2233                 case 0: printf(", mips1"); break;
2234                 case 1: printf(", mips2"); break;
2235                 case 2: printf(", mips3"); break;
2236                 case 3: printf(", mips4"); break;
2237                 case 4: printf(", mips5"); break;
2238                 case 5: printf(", mips32"); break;
2239                 case 6: printf(", mips64"); break;
2240                 case 7: printf(", mips32r2"); break;
2241                 case 8: printf(", mips64r2"); break;
2242                 default: break;
2243                 }
2244                 switch ((e_flags & 0x00FF0000) >> 16) {
2245                 case 0x81: printf(", 3900"); break;
2246                 case 0x82: printf(", 4010"); break;
2247                 case 0x83: printf(", 4100"); break;
2248                 case 0x85: printf(", 4650"); break;
2249                 case 0x87: printf(", 4120"); break;
2250                 case 0x88: printf(", 4111"); break;
2251                 case 0x8a: printf(", sb1"); break;
2252                 case 0x8b: printf(", octeon"); break;
2253                 case 0x8c: printf(", xlr"); break;
2254                 case 0x91: printf(", 5400"); break;
2255                 case 0x98: printf(", 5500"); break;
2256                 case 0x99: printf(", 9000"); break;
2257                 case 0xa0: printf(", loongson-2e"); break;
2258                 case 0xa1: printf(", loongson-2f"); break;
2259                 default: break;
2260                 }
2261                 switch ((e_flags & 0x0000F000) >> 12) {
2262                 case 1: printf(", o32"); break;
2263                 case 2: printf(", o64"); break;
2264                 case 3: printf(", eabi32"); break;
2265                 case 4: printf(", eabi64"); break;
2266                 default: break;
2267                 }
2268                 edesc = mips_eflags_desc;
2269                 break;
2270         case EM_PPC:
2271         case EM_PPC64:
2272                 edesc = powerpc_eflags_desc;
2273                 break;
2274         case EM_SPARC:
2275         case EM_SPARC32PLUS:
2276         case EM_SPARCV9:
2277                 switch ((e_flags & EF_SPARCV9_MM)) {
2278                 case EF_SPARCV9_TSO: printf(", tso"); break;
2279                 case EF_SPARCV9_PSO: printf(", pso"); break;
2280                 case EF_SPARCV9_MM: printf(", rmo"); break;
2281                 default: break;
2282                 }
2283                 edesc = sparc_eflags_desc;
2284                 break;
2285         default:
2286                 break;
2287         }
2288
2289         if (edesc != NULL) {
2290                 while (edesc->desc != NULL) {
2291                         if (e_flags & edesc->flag)
2292                                 printf(", %s", edesc->desc);
2293                         edesc++;
2294                 }
2295         }
2296 }
2297
2298 static void
2299 dump_phdr(struct readelf *re)
2300 {
2301         const char      *rawfile;
2302         GElf_Phdr        phdr;
2303         size_t           phnum, size;
2304         int              i, j;
2305
2306 #define PH_HDR  "Type", "Offset", "VirtAddr", "PhysAddr", "FileSiz",    \
2307                 "MemSiz", "Flg", "Align"
2308 #define PH_CT   phdr_type(re->ehdr.e_machine, phdr.p_type),             \
2309                 (uintmax_t)phdr.p_offset, (uintmax_t)phdr.p_vaddr,      \
2310                 (uintmax_t)phdr.p_paddr, (uintmax_t)phdr.p_filesz,      \
2311                 (uintmax_t)phdr.p_memsz,                                \
2312                 phdr.p_flags & PF_R ? 'R' : ' ',                        \
2313                 phdr.p_flags & PF_W ? 'W' : ' ',                        \
2314                 phdr.p_flags & PF_X ? 'E' : ' ',                        \
2315                 (uintmax_t)phdr.p_align
2316
2317         if (elf_getphnum(re->elf, &phnum) == 0) {
2318                 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
2319                 return;
2320         }
2321         if (phnum == 0) {
2322                 printf("\nThere are no program headers in this file.\n");
2323                 return;
2324         }
2325
2326         printf("\nElf file type is %s", elf_type(re->ehdr.e_type));
2327         printf("\nEntry point 0x%jx\n", (uintmax_t)re->ehdr.e_entry);
2328         printf("There are %ju program headers, starting at offset %ju\n",
2329             (uintmax_t)phnum, (uintmax_t)re->ehdr.e_phoff);
2330
2331         /* Dump program headers. */
2332         printf("\nProgram Headers:\n");
2333         if (re->ec == ELFCLASS32)
2334                 printf("  %-15s%-9s%-11s%-11s%-8s%-8s%-4s%s\n", PH_HDR);
2335         else if (re->options & RE_WW)
2336                 printf("  %-15s%-9s%-19s%-19s%-9s%-9s%-4s%s\n", PH_HDR);
2337         else
2338                 printf("  %-15s%-19s%-19s%s\n                 %-19s%-20s"
2339                     "%-7s%s\n", PH_HDR);
2340         for (i = 0; (size_t) i < phnum; i++) {
2341                 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2342                         warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2343                         continue;
2344                 }
2345                 /* TODO: Add arch-specific segment type dump. */
2346                 if (re->ec == ELFCLASS32)
2347                         printf("  %-14.14s 0x%6.6jx 0x%8.8jx 0x%8.8jx "
2348                             "0x%5.5jx 0x%5.5jx %c%c%c %#jx\n", PH_CT);
2349                 else if (re->options & RE_WW)
2350                         printf("  %-14.14s 0x%6.6jx 0x%16.16jx 0x%16.16jx "
2351                             "0x%6.6jx 0x%6.6jx %c%c%c %#jx\n", PH_CT);
2352                 else
2353                         printf("  %-14.14s 0x%16.16jx 0x%16.16jx 0x%16.16jx\n"
2354                             "                 0x%16.16jx 0x%16.16jx  %c%c%c"
2355                             "    %#jx\n", PH_CT);
2356                 if (phdr.p_type == PT_INTERP) {
2357                         if ((rawfile = elf_rawfile(re->elf, &size)) == NULL) {
2358                                 warnx("elf_rawfile failed: %s", elf_errmsg(-1));
2359                                 continue;
2360                         }
2361                         if (phdr.p_offset >= size) {
2362                                 warnx("invalid program header offset");
2363                                 continue;
2364                         }
2365                         printf("      [Requesting program interpreter: %s]\n",
2366                                 rawfile + phdr.p_offset);
2367                 }
2368         }
2369
2370         /* Dump section to segment mapping. */
2371         if (re->shnum == 0)
2372                 return;
2373         printf("\n Section to Segment mapping:\n");
2374         printf("  Segment Sections...\n");
2375         for (i = 0; (size_t)i < phnum; i++) {
2376                 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2377                         warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2378                         continue;
2379                 }
2380                 printf("   %2.2d     ", i);
2381                 /* skip NULL section. */
2382                 for (j = 1; (size_t)j < re->shnum; j++) {
2383                         if (re->sl[j].off < phdr.p_offset)
2384                                 continue;
2385                         if (re->sl[j].off + re->sl[j].sz >
2386                             phdr.p_offset + phdr.p_filesz &&
2387                             re->sl[j].type != SHT_NOBITS)
2388                                 continue;
2389                         if (re->sl[j].addr < phdr.p_vaddr ||
2390                             re->sl[j].addr + re->sl[j].sz >
2391                             phdr.p_vaddr + phdr.p_memsz)
2392                                 continue;
2393                         if (phdr.p_type == PT_TLS &&
2394                             (re->sl[j].flags & SHF_TLS) == 0)
2395                                 continue;
2396                         printf("%s ", re->sl[j].name);
2397                 }
2398                 printf("\n");
2399         }
2400 #undef  PH_HDR
2401 #undef  PH_CT
2402 }
2403
2404 static char *
2405 section_flags(struct readelf *re, struct section *s)
2406 {
2407 #define BUF_SZ 256
2408         static char     buf[BUF_SZ];
2409         int             i, p, nb;
2410
2411         p = 0;
2412         nb = re->ec == ELFCLASS32 ? 8 : 16;
2413         if (re->options & RE_T) {
2414                 snprintf(buf, BUF_SZ, "[%*.*jx]: ", nb, nb,
2415                     (uintmax_t)s->flags);
2416                 p += nb + 4;
2417         }
2418         for (i = 0; section_flag[i].ln != NULL; i++) {
2419                 if ((s->flags & section_flag[i].value) == 0)
2420                         continue;
2421                 if (re->options & RE_T) {
2422                         snprintf(&buf[p], BUF_SZ - p, "%s, ",
2423                             section_flag[i].ln);
2424                         p += strlen(section_flag[i].ln) + 2;
2425                 } else
2426                         buf[p++] = section_flag[i].sn;
2427         }
2428         if (re->options & RE_T && p > nb + 4)
2429                 p -= 2;
2430         buf[p] = '\0';
2431
2432         return (buf);
2433 }
2434
2435 static void
2436 dump_shdr(struct readelf *re)
2437 {
2438         struct section  *s;
2439         int              i;
2440
2441 #define S_HDR   "[Nr] Name", "Type", "Addr", "Off", "Size", "ES",       \
2442                 "Flg", "Lk", "Inf", "Al"
2443 #define S_HDRL  "[Nr] Name", "Type", "Address", "Offset", "Size",       \
2444                 "EntSize", "Flags", "Link", "Info", "Align"
2445 #define ST_HDR  "[Nr] Name", "Type", "Addr", "Off", "Size", "ES",       \
2446                 "Lk", "Inf", "Al", "Flags"
2447 #define ST_HDRL "[Nr] Name", "Type", "Address", "Offset", "Link",       \
2448                 "Size", "EntSize", "Info", "Align", "Flags"
2449 #define S_CT    i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2450                 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2451                 (uintmax_t)s->entsize, section_flags(re, s),            \
2452                 s->link, s->info, (uintmax_t)s->align
2453 #define ST_CT   i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2454                 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2455                 (uintmax_t)s->entsize, s->link, s->info,                \
2456                 (uintmax_t)s->align, section_flags(re, s)
2457 #define ST_CTL  i, s->name, section_type(re->ehdr.e_machine, s->type),  \
2458                 (uintmax_t)s->addr, (uintmax_t)s->off, s->link,         \
2459                 (uintmax_t)s->sz, (uintmax_t)s->entsize, s->info,       \
2460                 (uintmax_t)s->align, section_flags(re, s)
2461
2462         if (re->shnum == 0) {
2463                 printf("\nThere are no sections in this file.\n");
2464                 return;
2465         }
2466         printf("There are %ju section headers, starting at offset 0x%jx:\n",
2467             (uintmax_t)re->shnum, (uintmax_t)re->ehdr.e_shoff);
2468         printf("\nSection Headers:\n");
2469         if (re->ec == ELFCLASS32) {
2470                 if (re->options & RE_T)
2471                         printf("  %s\n       %-16s%-9s%-7s%-7s%-5s%-3s%-4s%s\n"
2472                             "%12s\n", ST_HDR);
2473                 else
2474                         printf("  %-23s%-16s%-9s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2475                             S_HDR);
2476         } else if (re->options & RE_WW) {
2477                 if (re->options & RE_T)
2478                         printf("  %s\n       %-16s%-17s%-7s%-7s%-5s%-3s%-4s%s\n"
2479                             "%12s\n", ST_HDR);
2480                 else
2481                         printf("  %-23s%-16s%-17s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2482                             S_HDR);
2483         } else {
2484                 if (re->options & RE_T)
2485                         printf("  %s\n       %-18s%-17s%-18s%s\n       %-18s"
2486                             "%-17s%-18s%s\n%12s\n", ST_HDRL);
2487                 else
2488                         printf("  %-23s%-17s%-18s%s\n       %-18s%-17s%-7s%"
2489                             "-6s%-6s%s\n", S_HDRL);
2490         }
2491         for (i = 0; (size_t)i < re->shnum; i++) {
2492                 s = &re->sl[i];
2493                 if (re->ec == ELFCLASS32) {
2494                         if (re->options & RE_T)
2495                                 printf("  [%2d] %s\n       %-15.15s %8.8jx"
2496                                     " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2497                                     "       %s\n", ST_CT);
2498                         else
2499                                 printf("  [%2d] %-17.17s %-15.15s %8.8jx"
2500                                     " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2501                                     S_CT);
2502                 } else if (re->options & RE_WW) {
2503                         if (re->options & RE_T)
2504                                 printf("  [%2d] %s\n       %-15.15s %16.16jx"
2505                                     " %6.6jx %6.6jx %2.2jx  %2u %3u %2ju\n"
2506                                     "       %s\n", ST_CT);
2507                         else
2508                                 printf("  [%2d] %-17.17s %-15.15s %16.16jx"
2509                                     " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2510                                     S_CT);
2511                 } else {
2512                         if (re->options & RE_T)
2513                                 printf("  [%2d] %s\n       %-15.15s  %16.16jx"
2514                                     "  %16.16jx  %u\n       %16.16jx %16.16jx"
2515                                     "  %-16u  %ju\n       %s\n", ST_CTL);
2516                         else
2517                                 printf("  [%2d] %-17.17s %-15.15s  %16.16jx"
2518                                     "  %8.8jx\n       %16.16jx  %16.16jx "
2519                                     "%3s      %2u   %3u     %ju\n", S_CT);
2520                 }
2521         }
2522         if ((re->options & RE_T) == 0)
2523                 printf("Key to Flags:\n  W (write), A (alloc),"
2524                     " X (execute), M (merge), S (strings)\n"
2525                     "  I (info), L (link order), G (group), x (unknown)\n"
2526                     "  O (extra OS processing required)"
2527                     " o (OS specific), p (processor specific)\n");
2528
2529 #undef  S_HDR
2530 #undef  S_HDRL
2531 #undef  ST_HDR
2532 #undef  ST_HDRL
2533 #undef  S_CT
2534 #undef  ST_CT
2535 #undef  ST_CTL
2536 }
2537
2538 /*
2539  * Return number of entries in the given section. We'd prefer ent_count be a
2540  * size_t *, but libelf APIs already use int for section indices.
2541  */
2542 static int
2543 get_ent_count(struct section *s, int *ent_count)
2544 {
2545         if (s->entsize == 0) {
2546                 warnx("section %s has entry size 0", s->name);
2547                 return (0);
2548         } else if (s->sz / s->entsize > INT_MAX) {
2549                 warnx("section %s has invalid section count", s->name);
2550                 return (0);
2551         }
2552         *ent_count = (int)(s->sz / s->entsize);
2553         return (1);
2554 }
2555
2556 static void
2557 dump_dynamic(struct readelf *re)
2558 {
2559         GElf_Dyn         dyn;
2560         Elf_Data        *d;
2561         struct section  *s;
2562         int              elferr, i, is_dynamic, j, jmax, nentries;
2563
2564         is_dynamic = 0;
2565
2566         for (i = 0; (size_t)i < re->shnum; i++) {
2567                 s = &re->sl[i];
2568                 if (s->type != SHT_DYNAMIC)
2569                         continue;
2570                 (void) elf_errno();
2571                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
2572                         elferr = elf_errno();
2573                         if (elferr != 0)
2574                                 warnx("elf_getdata failed: %s", elf_errmsg(-1));
2575                         continue;
2576                 }
2577                 if (d->d_size <= 0)
2578                         continue;
2579
2580                 is_dynamic = 1;
2581
2582                 /* Determine the actual number of table entries. */
2583                 nentries = 0;
2584                 if (!get_ent_count(s, &jmax))
2585                         continue;
2586                 for (j = 0; j < jmax; j++) {
2587                         if (gelf_getdyn(d, j, &dyn) != &dyn) {
2588                                 warnx("gelf_getdyn failed: %s",
2589                                     elf_errmsg(-1));
2590                                 continue;
2591                         }
2592                         nentries ++;
2593                         if (dyn.d_tag == DT_NULL)
2594                                 break;
2595                 }
2596
2597                 printf("\nDynamic section at offset 0x%jx", (uintmax_t)s->off);
2598                 printf(" contains %u entries:\n", nentries);
2599
2600                 if (re->ec == ELFCLASS32)
2601                         printf("%5s%12s%28s\n", "Tag", "Type", "Name/Value");
2602                 else
2603                         printf("%5s%20s%28s\n", "Tag", "Type", "Name/Value");
2604
2605                 for (j = 0; j < nentries; j++) {
2606                         if (gelf_getdyn(d, j, &dyn) != &dyn)
2607                                 continue;
2608                         /* Dump dynamic entry type. */
2609                         if (re->ec == ELFCLASS32)
2610                                 printf(" 0x%8.8jx", (uintmax_t)dyn.d_tag);
2611                         else
2612                                 printf(" 0x%16.16jx", (uintmax_t)dyn.d_tag);
2613                         printf(" %-20s", dt_type(re->ehdr.e_machine,
2614                             dyn.d_tag));
2615                         /* Dump dynamic entry value. */
2616                         dump_dyn_val(re, &dyn, s->link);
2617                 }
2618         }
2619
2620         if (!is_dynamic)
2621                 printf("\nThere is no dynamic section in this file.\n");
2622 }
2623
2624 static char *
2625 timestamp(time_t ti)
2626 {
2627         static char ts[32];
2628         struct tm *t;
2629
2630         t = gmtime(&ti);
2631         snprintf(ts, sizeof(ts), "%04d-%02d-%02dT%02d:%02d:%02d",
2632             t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour,
2633             t->tm_min, t->tm_sec);
2634
2635         return (ts);
2636 }
2637
2638 static const char *
2639 dyn_str(struct readelf *re, uint32_t stab, uint64_t d_val)
2640 {
2641         const char *name;
2642
2643         if (stab == SHN_UNDEF)
2644                 name = "ERROR";
2645         else if ((name = elf_strptr(re->elf, stab, d_val)) == NULL) {
2646                 (void) elf_errno(); /* clear error */
2647                 name = "ERROR";
2648         }
2649
2650         return (name);
2651 }
2652
2653 static void
2654 dump_arch_dyn_val(struct readelf *re, GElf_Dyn *dyn)
2655 {
2656         switch (re->ehdr.e_machine) {
2657         case EM_MIPS:
2658         case EM_MIPS_RS3_LE:
2659                 switch (dyn->d_tag) {
2660                 case DT_MIPS_RLD_VERSION:
2661                 case DT_MIPS_LOCAL_GOTNO:
2662                 case DT_MIPS_CONFLICTNO:
2663                 case DT_MIPS_LIBLISTNO:
2664                 case DT_MIPS_SYMTABNO:
2665                 case DT_MIPS_UNREFEXTNO:
2666                 case DT_MIPS_GOTSYM:
2667                 case DT_MIPS_HIPAGENO:
2668                 case DT_MIPS_DELTA_CLASS_NO:
2669                 case DT_MIPS_DELTA_INSTANCE_NO:
2670                 case DT_MIPS_DELTA_RELOC_NO:
2671                 case DT_MIPS_DELTA_SYM_NO:
2672                 case DT_MIPS_DELTA_CLASSSYM_NO:
2673                 case DT_MIPS_LOCALPAGE_GOTIDX:
2674                 case DT_MIPS_LOCAL_GOTIDX:
2675                 case DT_MIPS_HIDDEN_GOTIDX:
2676                 case DT_MIPS_PROTECTED_GOTIDX:
2677                         printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2678                         break;
2679                 case DT_MIPS_ICHECKSUM:
2680                 case DT_MIPS_FLAGS:
2681                 case DT_MIPS_BASE_ADDRESS:
2682                 case DT_MIPS_CONFLICT:
2683                 case DT_MIPS_LIBLIST:
2684                 case DT_MIPS_RLD_MAP:
2685                 case DT_MIPS_DELTA_CLASS:
2686                 case DT_MIPS_DELTA_INSTANCE:
2687                 case DT_MIPS_DELTA_RELOC:
2688                 case DT_MIPS_DELTA_SYM:
2689                 case DT_MIPS_DELTA_CLASSSYM:
2690                 case DT_MIPS_CXX_FLAGS:
2691                 case DT_MIPS_PIXIE_INIT:
2692                 case DT_MIPS_SYMBOL_LIB:
2693                 case DT_MIPS_OPTIONS:
2694                 case DT_MIPS_INTERFACE:
2695                 case DT_MIPS_DYNSTR_ALIGN:
2696                 case DT_MIPS_INTERFACE_SIZE:
2697                 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
2698                 case DT_MIPS_COMPACT_SIZE:
2699                 case DT_MIPS_GP_VALUE:
2700                 case DT_MIPS_AUX_DYNAMIC:
2701                 case DT_MIPS_PLTGOT:
2702                 case DT_MIPS_RLD_OBJ_UPDATE:
2703                 case DT_MIPS_RWPLT:
2704                         printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2705                         break;
2706                 case DT_MIPS_IVERSION:
2707                 case DT_MIPS_PERF_SUFFIX:
2708                 case DT_MIPS_TIME_STAMP:
2709                         printf(" %s\n", timestamp(dyn->d_un.d_val));
2710                         break;
2711                 default:
2712                         printf("\n");
2713                         break;
2714                 }
2715                 break;
2716         default:
2717                 printf("\n");
2718                 break;
2719         }
2720 }
2721
2722 static void
2723 dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
2724 {
2725         const char *name;
2726
2727         if (dyn->d_tag >= DT_LOPROC && dyn->d_tag <= DT_HIPROC &&
2728             dyn->d_tag != DT_AUXILIARY && dyn->d_tag != DT_FILTER) {
2729                 dump_arch_dyn_val(re, dyn);
2730                 return;
2731         }
2732
2733         /* These entry values are index into the string table. */
2734         name = NULL;
2735         if (dyn->d_tag == DT_AUXILIARY || dyn->d_tag == DT_FILTER ||
2736             dyn->d_tag == DT_NEEDED || dyn->d_tag == DT_SONAME ||
2737             dyn->d_tag == DT_RPATH || dyn->d_tag == DT_RUNPATH)
2738                 name = dyn_str(re, stab, dyn->d_un.d_val);
2739
2740         switch(dyn->d_tag) {
2741         case DT_NULL:
2742         case DT_PLTGOT:
2743         case DT_HASH:
2744         case DT_STRTAB:
2745         case DT_SYMTAB:
2746         case DT_RELA:
2747         case DT_INIT:
2748         case DT_SYMBOLIC:
2749         case DT_REL:
2750         case DT_DEBUG:
2751         case DT_TEXTREL:
2752         case DT_JMPREL:
2753         case DT_FINI:
2754         case DT_VERDEF:
2755         case DT_VERNEED:
2756         case DT_VERSYM:
2757         case DT_GNU_HASH:
2758         case DT_GNU_LIBLIST:
2759         case DT_GNU_CONFLICT:
2760                 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
2761                 break;
2762         case DT_PLTRELSZ:
2763         case DT_RELASZ:
2764         case DT_RELAENT:
2765         case DT_STRSZ:
2766         case DT_SYMENT:
2767         case DT_RELSZ:
2768         case DT_RELENT:
2769         case DT_PREINIT_ARRAYSZ:
2770         case DT_INIT_ARRAYSZ:
2771         case DT_FINI_ARRAYSZ:
2772         case DT_GNU_CONFLICTSZ:
2773         case DT_GNU_LIBLISTSZ:
2774                 printf(" %ju (bytes)\n", (uintmax_t) dyn->d_un.d_val);
2775                 break;
2776         case DT_RELACOUNT:
2777         case DT_RELCOUNT:
2778         case DT_VERDEFNUM:
2779         case DT_VERNEEDNUM:
2780                 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
2781                 break;
2782         case DT_AUXILIARY:
2783                 printf(" Auxiliary library: [%s]\n", name);
2784                 break;
2785         case DT_FILTER:
2786                 printf(" Filter library: [%s]\n", name);
2787                 break;
2788         case DT_NEEDED:
2789                 printf(" Shared library: [%s]\n", name);
2790                 break;
2791         case DT_SONAME:
2792                 printf(" Library soname: [%s]\n", name);
2793                 break;
2794         case DT_RPATH:
2795                 printf(" Library rpath: [%s]\n", name);
2796                 break;
2797         case DT_RUNPATH:
2798                 printf(" Library runpath: [%s]\n", name);
2799                 break;
2800         case DT_PLTREL:
2801                 printf(" %s\n", dt_type(re->ehdr.e_machine, dyn->d_un.d_val));
2802                 break;
2803         case DT_GNU_PRELINKED:
2804                 printf(" %s\n", timestamp(dyn->d_un.d_val));
2805                 break;
2806         default:
2807                 printf("\n");
2808         }
2809 }
2810
2811 static void
2812 dump_rel(struct readelf *re, struct section *s, Elf_Data *d)
2813 {
2814         GElf_Rel r;
2815         const char *symname;
2816         uint64_t symval;
2817         int i, len;
2818         uint32_t type;
2819         uint8_t type2, type3;
2820
2821         if (s->link >= re->shnum)
2822                 return;
2823
2824 #define REL_HDR "r_offset", "r_info", "r_type", "st_value", "st_name"
2825 #define REL_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,        \
2826                 elftc_reloc_type_str(re->ehdr.e_machine,            \
2827                 ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
2828 #define REL_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,        \
2829                 elftc_reloc_type_str(re->ehdr.e_machine, type),     \
2830                 (uintmax_t)symval, symname
2831
2832         printf("\nRelocation section (%s):\n", s->name);
2833         if (re->ec == ELFCLASS32)
2834                 printf("%-8s %-8s %-19s %-8s %s\n", REL_HDR);
2835         else {
2836                 if (re->options & RE_WW)
2837                         printf("%-16s %-16s %-24s %-16s %s\n", REL_HDR);
2838                 else
2839                         printf("%-12s %-12s %-19s %-16s %s\n", REL_HDR);
2840         }
2841         assert(d->d_size == s->sz);
2842         if (!get_ent_count(s, &len))
2843                 return;
2844         for (i = 0; i < len; i++) {
2845                 if (gelf_getrel(d, i, &r) != &r) {
2846                         warnx("gelf_getrel failed: %s", elf_errmsg(-1));
2847                         continue;
2848                 }
2849                 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
2850                 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
2851                 if (re->ec == ELFCLASS32) {
2852                         r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
2853                             ELF64_R_TYPE(r.r_info));
2854                         printf("%8.8jx %8.8jx %-19.19s %8.8jx %s\n", REL_CT32);
2855                 } else {
2856                         type = ELF64_R_TYPE(r.r_info);
2857                         if (re->ehdr.e_machine == EM_MIPS) {
2858                                 type2 = (type >> 8) & 0xFF;
2859                                 type3 = (type >> 16) & 0xFF;
2860                                 type = type & 0xFF;
2861                         } else {
2862                                 type2 = type3 = 0;
2863                         }
2864                         if (re->options & RE_WW)
2865                                 printf("%16.16jx %16.16jx %-24.24s"
2866                                     " %16.16jx %s\n", REL_CT64);
2867                         else
2868                                 printf("%12.12jx %12.12jx %-19.19s"
2869                                     " %16.16jx %s\n", REL_CT64);
2870                         if (re->ehdr.e_machine == EM_MIPS) {
2871                                 if (re->options & RE_WW) {
2872                                         printf("%32s: %s\n", "Type2",
2873                                             elftc_reloc_type_str(EM_MIPS,
2874                                             type2));
2875                                         printf("%32s: %s\n", "Type3",
2876                                             elftc_reloc_type_str(EM_MIPS,
2877                                             type3));
2878                                 } else {
2879                                         printf("%24s: %s\n", "Type2",
2880                                             elftc_reloc_type_str(EM_MIPS,
2881                                             type2));
2882                                         printf("%24s: %s\n", "Type3",
2883                                             elftc_reloc_type_str(EM_MIPS,
2884                                             type3));
2885                                 }
2886                         }
2887                 }
2888         }
2889
2890 #undef  REL_HDR
2891 #undef  REL_CT
2892 }
2893
2894 static void
2895 dump_rela(struct readelf *re, struct section *s, Elf_Data *d)
2896 {
2897         GElf_Rela r;
2898         const char *symname;
2899         uint64_t symval;
2900         int i, len;
2901         uint32_t type;
2902         uint8_t type2, type3;
2903
2904         if (s->link >= re->shnum)
2905                 return;
2906
2907 #define RELA_HDR "r_offset", "r_info", "r_type", "st_value", \
2908                 "st_name + r_addend"
2909 #define RELA_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,       \
2910                 elftc_reloc_type_str(re->ehdr.e_machine,            \
2911                 ELF32_R_TYPE(r.r_info)), (uintmax_t)symval, symname
2912 #define RELA_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info,       \
2913                 elftc_reloc_type_str(re->ehdr.e_machine, type),     \
2914                 (uintmax_t)symval, symname
2915
2916         printf("\nRelocation section with addend (%s):\n", s->name);
2917         if (re->ec == ELFCLASS32)
2918                 printf("%-8s %-8s %-19s %-8s %s\n", RELA_HDR);
2919         else {
2920                 if (re->options & RE_WW)
2921                         printf("%-16s %-16s %-24s %-16s %s\n", RELA_HDR);
2922                 else
2923                         printf("%-12s %-12s %-19s %-16s %s\n", RELA_HDR);
2924         }
2925         assert(d->d_size == s->sz);
2926         if (!get_ent_count(s, &len))
2927                 return;
2928         for (i = 0; i < len; i++) {
2929                 if (gelf_getrela(d, i, &r) != &r) {
2930                         warnx("gelf_getrel failed: %s", elf_errmsg(-1));
2931                         continue;
2932                 }
2933                 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
2934                 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
2935                 if (re->ec == ELFCLASS32) {
2936                         r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
2937                             ELF64_R_TYPE(r.r_info));
2938                         printf("%8.8jx %8.8jx %-19.19s %8.8jx %s", RELA_CT32);
2939                         printf(" + %x\n", (uint32_t) r.r_addend);
2940                 } else {
2941                         type = ELF64_R_TYPE(r.r_info);
2942                         if (re->ehdr.e_machine == EM_MIPS) {
2943                                 type2 = (type >> 8) & 0xFF;
2944                                 type3 = (type >> 16) & 0xFF;
2945                                 type = type & 0xFF;
2946                         } else {
2947                                 type2 = type3 = 0;
2948                         }
2949                         if (re->options & RE_WW)
2950                                 printf("%16.16jx %16.16jx %-24.24s"
2951                                     " %16.16jx %s", RELA_CT64);
2952                         else
2953                                 printf("%12.12jx %12.12jx %-19.19s"
2954                                     " %16.16jx %s", RELA_CT64);
2955                         printf(" + %jx\n", (uintmax_t) r.r_addend);
2956                         if (re->ehdr.e_machine == EM_MIPS) {
2957                                 if (re->options & RE_WW) {
2958                                         printf("%32s: %s\n", "Type2",
2959                                             elftc_reloc_type_str(EM_MIPS,
2960                                             type2));
2961                                         printf("%32s: %s\n", "Type3",
2962                                             elftc_reloc_type_str(EM_MIPS,
2963                                             type3));
2964                                 } else {
2965                                         printf("%24s: %s\n", "Type2",
2966                                             elftc_reloc_type_str(EM_MIPS,
2967                                             type2));
2968                                         printf("%24s: %s\n", "Type3",
2969                                             elftc_reloc_type_str(EM_MIPS,
2970                                             type3));
2971                                 }
2972                         }
2973                 }
2974         }
2975
2976 #undef  RELA_HDR
2977 #undef  RELA_CT
2978 }
2979
2980 static void
2981 dump_reloc(struct readelf *re)
2982 {
2983         struct section *s;
2984         Elf_Data *d;
2985         int i, elferr;
2986
2987         for (i = 0; (size_t)i < re->shnum; i++) {
2988                 s = &re->sl[i];
2989                 if (s->type == SHT_REL || s->type == SHT_RELA) {
2990                         (void) elf_errno();
2991                         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
2992                                 elferr = elf_errno();
2993                                 if (elferr != 0)
2994                                         warnx("elf_getdata failed: %s",
2995                                             elf_errmsg(elferr));
2996                                 continue;
2997                         }
2998                         if (s->type == SHT_REL)
2999                                 dump_rel(re, s, d);
3000                         else
3001                                 dump_rela(re, s, d);
3002                 }
3003         }
3004 }
3005
3006 static void
3007 dump_symtab(struct readelf *re, int i)
3008 {
3009         struct section *s;
3010         Elf_Data *d;
3011         GElf_Sym sym;
3012         const char *name;
3013         uint32_t stab;
3014         int elferr, j, len;
3015         uint16_t vs;
3016
3017         s = &re->sl[i];
3018         if (s->link >= re->shnum)
3019                 return;
3020         stab = s->link;
3021         (void) elf_errno();
3022         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3023                 elferr = elf_errno();
3024                 if (elferr != 0)
3025                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3026                 return;
3027         }
3028         if (d->d_size <= 0)
3029                 return;
3030         if (!get_ent_count(s, &len))
3031                 return;
3032         printf("Symbol table (%s)", s->name);
3033         printf(" contains %d entries:\n", len);
3034         printf("%7s%9s%14s%5s%8s%6s%9s%5s\n", "Num:", "Value", "Size", "Type",
3035             "Bind", "Vis", "Ndx", "Name");
3036
3037         for (j = 0; j < len; j++) {
3038                 if (gelf_getsym(d, j, &sym) != &sym) {
3039                         warnx("gelf_getsym failed: %s", elf_errmsg(-1));
3040                         continue;
3041                 }
3042                 printf("%6d:", j);
3043                 printf(" %16.16jx", (uintmax_t) sym.st_value);
3044                 printf(" %5ju", (uintmax_t) sym.st_size);
3045                 printf(" %-7s", st_type(re->ehdr.e_machine,
3046                     re->ehdr.e_ident[EI_OSABI], GELF_ST_TYPE(sym.st_info)));
3047                 printf(" %-6s", st_bind(GELF_ST_BIND(sym.st_info)));
3048                 printf(" %-8s", st_vis(GELF_ST_VISIBILITY(sym.st_other)));
3049                 printf(" %3s", st_shndx(sym.st_shndx));
3050                 if ((name = elf_strptr(re->elf, stab, sym.st_name)) != NULL)
3051                         printf(" %s", name);
3052                 /* Append symbol version string for SHT_DYNSYM symbol table. */
3053                 if (s->type == SHT_DYNSYM && re->ver != NULL &&
3054                     re->vs != NULL && re->vs[j] > 1) {
3055                         vs = re->vs[j] & VERSYM_VERSION;
3056                         if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3057                                 warnx("invalid versym version index %u", vs);
3058                                 break;
3059                         }
3060                         if (re->vs[j] & VERSYM_HIDDEN || re->ver[vs].type == 0)
3061                                 printf("@%s (%d)", re->ver[vs].name, vs);
3062                         else
3063                                 printf("@@%s (%d)", re->ver[vs].name, vs);
3064                 }
3065                 putchar('\n');
3066         }
3067
3068 }
3069
3070 static void
3071 dump_symtabs(struct readelf *re)
3072 {
3073         GElf_Dyn dyn;
3074         Elf_Data *d;
3075         struct section *s;
3076         uint64_t dyn_off;
3077         int elferr, i, len;
3078
3079         /*
3080          * If -D is specified, only dump the symbol table specified by
3081          * the DT_SYMTAB entry in the .dynamic section.
3082          */
3083         dyn_off = 0;
3084         if (re->options & RE_DD) {
3085                 s = NULL;
3086                 for (i = 0; (size_t)i < re->shnum; i++)
3087                         if (re->sl[i].type == SHT_DYNAMIC) {
3088                                 s = &re->sl[i];
3089                                 break;
3090                         }
3091                 if (s == NULL)
3092                         return;
3093                 (void) elf_errno();
3094                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3095                         elferr = elf_errno();
3096                         if (elferr != 0)
3097                                 warnx("elf_getdata failed: %s", elf_errmsg(-1));
3098                         return;
3099                 }
3100                 if (d->d_size <= 0)
3101                         return;
3102                 if (!get_ent_count(s, &len))
3103                         return;
3104
3105                 for (i = 0; i < len; i++) {
3106                         if (gelf_getdyn(d, i, &dyn) != &dyn) {
3107                                 warnx("gelf_getdyn failed: %s", elf_errmsg(-1));
3108                                 continue;
3109                         }
3110                         if (dyn.d_tag == DT_SYMTAB) {
3111                                 dyn_off = dyn.d_un.d_val;
3112                                 break;
3113                         }
3114                 }
3115         }
3116
3117         /* Find and dump symbol tables. */
3118         for (i = 0; (size_t)i < re->shnum; i++) {
3119                 s = &re->sl[i];
3120                 if (s->type == SHT_SYMTAB || s->type == SHT_DYNSYM) {
3121                         if (re->options & RE_DD) {
3122                                 if (dyn_off == s->addr) {
3123                                         dump_symtab(re, i);
3124                                         break;
3125                                 }
3126                         } else
3127                                 dump_symtab(re, i);
3128                 }
3129         }
3130 }
3131
3132 static void
3133 dump_svr4_hash(struct section *s)
3134 {
3135         Elf_Data        *d;
3136         uint32_t        *buf;
3137         uint32_t         nbucket, nchain;
3138         uint32_t        *bucket, *chain;
3139         uint32_t        *bl, *c, maxl, total;
3140         int              elferr, i, j;
3141
3142         /* Read and parse the content of .hash section. */
3143         (void) elf_errno();
3144         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3145                 elferr = elf_errno();
3146                 if (elferr != 0)
3147                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3148                 return;
3149         }
3150         if (d->d_size < 2 * sizeof(uint32_t)) {
3151                 warnx(".hash section too small");
3152                 return;
3153         }
3154         buf = d->d_buf;
3155         nbucket = buf[0];
3156         nchain = buf[1];
3157         if (nbucket <= 0 || nchain <= 0) {
3158                 warnx("Malformed .hash section");
3159                 return;
3160         }
3161         if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3162                 warnx("Malformed .hash section");
3163                 return;
3164         }
3165         bucket = &buf[2];
3166         chain = &buf[2 + nbucket];
3167
3168         maxl = 0;
3169         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3170                 errx(EXIT_FAILURE, "calloc failed");
3171         for (i = 0; (uint32_t)i < nbucket; i++)
3172                 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3173                         if (++bl[i] > maxl)
3174                                 maxl = bl[i];
3175         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3176                 errx(EXIT_FAILURE, "calloc failed");
3177         for (i = 0; (uint32_t)i < nbucket; i++)
3178                 c[bl[i]]++;
3179         printf("\nHistogram for bucket list length (total of %u buckets):\n",
3180             nbucket);
3181         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3182         total = 0;
3183         for (i = 0; (uint32_t)i <= maxl; i++) {
3184                 total += c[i] * i;
3185                 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3186                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3187         }
3188         free(c);
3189         free(bl);
3190 }
3191
3192 static void
3193 dump_svr4_hash64(struct readelf *re, struct section *s)
3194 {
3195         Elf_Data        *d, dst;
3196         uint64_t        *buf;
3197         uint64_t         nbucket, nchain;
3198         uint64_t        *bucket, *chain;
3199         uint64_t        *bl, *c, maxl, total;
3200         int              elferr, i, j;
3201
3202         /*
3203          * ALPHA uses 64-bit hash entries. Since libelf assumes that
3204          * .hash section contains only 32-bit entry, an explicit
3205          * gelf_xlatetom is needed here.
3206          */
3207         (void) elf_errno();
3208         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
3209                 elferr = elf_errno();
3210                 if (elferr != 0)
3211                         warnx("elf_rawdata failed: %s",
3212                             elf_errmsg(elferr));
3213                 return;
3214         }
3215         d->d_type = ELF_T_XWORD;
3216         memcpy(&dst, d, sizeof(Elf_Data));
3217         if (gelf_xlatetom(re->elf, &dst, d,
3218                 re->ehdr.e_ident[EI_DATA]) != &dst) {
3219                 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
3220                 return;
3221         }
3222         if (dst.d_size < 2 * sizeof(uint64_t)) {
3223                 warnx(".hash section too small");
3224                 return;
3225         }
3226         buf = dst.d_buf;
3227         nbucket = buf[0];
3228         nchain = buf[1];
3229         if (nbucket <= 0 || nchain <= 0) {
3230                 warnx("Malformed .hash section");
3231                 return;
3232         }
3233         if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3234                 warnx("Malformed .hash section");
3235                 return;
3236         }
3237         bucket = &buf[2];
3238         chain = &buf[2 + nbucket];
3239
3240         maxl = 0;
3241         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3242                 errx(EXIT_FAILURE, "calloc failed");
3243         for (i = 0; (uint32_t)i < nbucket; i++)
3244                 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3245                         if (++bl[i] > maxl)
3246                                 maxl = bl[i];
3247         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3248                 errx(EXIT_FAILURE, "calloc failed");
3249         for (i = 0; (uint64_t)i < nbucket; i++)
3250                 c[bl[i]]++;
3251         printf("Histogram for bucket list length (total of %ju buckets):\n",
3252             (uintmax_t)nbucket);
3253         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3254         total = 0;
3255         for (i = 0; (uint64_t)i <= maxl; i++) {
3256                 total += c[i] * i;
3257                 printf("%7u\t%-10ju\t(%5.1f%%)\t%5.1f%%\n", i, (uintmax_t)c[i],
3258                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3259         }
3260         free(c);
3261         free(bl);
3262 }
3263
3264 static void
3265 dump_gnu_hash(struct readelf *re, struct section *s)
3266 {
3267         struct section  *ds;
3268         Elf_Data        *d;
3269         uint32_t        *buf;
3270         uint32_t        *bucket, *chain;
3271         uint32_t         nbucket, nchain, symndx, maskwords;
3272         uint32_t        *bl, *c, maxl, total;
3273         int              elferr, dynsymcount, i, j;
3274
3275         (void) elf_errno();
3276         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3277                 elferr = elf_errno();
3278                 if (elferr != 0)
3279                         warnx("elf_getdata failed: %s",
3280                             elf_errmsg(elferr));
3281                 return;
3282         }
3283         if (d->d_size < 4 * sizeof(uint32_t)) {
3284                 warnx(".gnu.hash section too small");
3285                 return;
3286         }
3287         buf = d->d_buf;
3288         nbucket = buf[0];
3289         symndx = buf[1];
3290         maskwords = buf[2];
3291         buf += 4;
3292         if (s->link >= re->shnum)
3293                 return;
3294         ds = &re->sl[s->link];
3295         if (!get_ent_count(ds, &dynsymcount))
3296                 return;
3297         if (symndx >= (uint32_t)dynsymcount) {
3298                 warnx("Malformed .gnu.hash section (symndx out of range)");
3299                 return;
3300         }
3301         nchain = dynsymcount - symndx;
3302         if (d->d_size != 4 * sizeof(uint32_t) + maskwords *
3303             (re->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) +
3304             (nbucket + nchain) * sizeof(uint32_t)) {
3305                 warnx("Malformed .gnu.hash section");
3306                 return;
3307         }
3308         bucket = buf + (re->ec == ELFCLASS32 ? maskwords : maskwords * 2);
3309         chain = bucket + nbucket;
3310
3311         maxl = 0;
3312         if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3313                 errx(EXIT_FAILURE, "calloc failed");
3314         for (i = 0; (uint32_t)i < nbucket; i++)
3315                 for (j = bucket[i]; j > 0 && (uint32_t)j - symndx < nchain;
3316                      j++) {
3317                         if (++bl[i] > maxl)
3318                                 maxl = bl[i];
3319                         if (chain[j - symndx] & 1)
3320                                 break;
3321                 }
3322         if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3323                 errx(EXIT_FAILURE, "calloc failed");
3324         for (i = 0; (uint32_t)i < nbucket; i++)
3325                 c[bl[i]]++;
3326         printf("Histogram for bucket list length (total of %u buckets):\n",
3327             nbucket);
3328         printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3329         total = 0;
3330         for (i = 0; (uint32_t)i <= maxl; i++) {
3331                 total += c[i] * i;
3332                 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3333                     c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3334         }
3335         free(c);
3336         free(bl);
3337 }
3338
3339 static void
3340 dump_hash(struct readelf *re)
3341 {
3342         struct section  *s;
3343         int              i;
3344
3345         for (i = 0; (size_t) i < re->shnum; i++) {
3346                 s = &re->sl[i];
3347                 if (s->type == SHT_HASH || s->type == SHT_GNU_HASH) {
3348                         if (s->type == SHT_GNU_HASH)
3349                                 dump_gnu_hash(re, s);
3350                         else if (re->ehdr.e_machine == EM_ALPHA &&
3351                             s->entsize == 8)
3352                                 dump_svr4_hash64(re, s);
3353                         else
3354                                 dump_svr4_hash(s);
3355                 }
3356         }
3357 }
3358
3359 static void
3360 dump_notes(struct readelf *re)
3361 {
3362         struct section *s;
3363         const char *rawfile;
3364         GElf_Phdr phdr;
3365         Elf_Data *d;
3366         size_t filesize, phnum;
3367         int i, elferr;
3368
3369         if (re->ehdr.e_type == ET_CORE) {
3370                 /*
3371                  * Search program headers in the core file for
3372                  * PT_NOTE entry.
3373                  */
3374                 if (elf_getphnum(re->elf, &phnum) == 0) {
3375                         warnx("elf_getphnum failed: %s", elf_errmsg(-1));
3376                         return;
3377                 }
3378                 if (phnum == 0)
3379                         return;
3380                 if ((rawfile = elf_rawfile(re->elf, &filesize)) == NULL) {
3381                         warnx("elf_rawfile failed: %s", elf_errmsg(-1));
3382                         return;
3383                 }
3384                 for (i = 0; (size_t) i < phnum; i++) {
3385                         if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
3386                                 warnx("gelf_getphdr failed: %s",
3387                                     elf_errmsg(-1));
3388                                 continue;
3389                         }
3390                         if (phdr.p_type == PT_NOTE) {
3391                                 if (phdr.p_offset >= filesize ||
3392                                     phdr.p_filesz > filesize - phdr.p_offset) {
3393                                         warnx("invalid PHDR offset");
3394                                         continue;
3395                                 }
3396                                 dump_notes_content(re, rawfile + phdr.p_offset,
3397                                     phdr.p_filesz, phdr.p_offset);
3398                         }
3399                 }
3400
3401         } else {
3402                 /*
3403                  * For objects other than core files, Search for
3404                  * SHT_NOTE sections.
3405                  */
3406                 for (i = 0; (size_t) i < re->shnum; i++) {
3407                         s = &re->sl[i];
3408                         if (s->type == SHT_NOTE) {
3409                                 (void) elf_errno();
3410                                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3411                                         elferr = elf_errno();
3412                                         if (elferr != 0)
3413                                                 warnx("elf_getdata failed: %s",
3414                                                     elf_errmsg(elferr));
3415                                         continue;
3416                                 }
3417                                 dump_notes_content(re, d->d_buf, d->d_size,
3418                                     s->off);
3419                         }
3420                 }
3421         }
3422 }
3423
3424 static void
3425 dump_notes_content(struct readelf *re, const char *buf, size_t sz, off_t off)
3426 {
3427         Elf_Note *note;
3428         const char *end, *name;
3429
3430         printf("\nNotes at offset %#010jx with length %#010jx:\n",
3431             (uintmax_t) off, (uintmax_t) sz);
3432         printf("  %-13s %-15s %s\n", "Owner", "Data size", "Description");
3433         end = buf + sz;
3434         while (buf < end) {
3435                 if (buf + sizeof(*note) > end) {
3436                         warnx("invalid note header");
3437                         return;
3438                 }
3439                 note = (Elf_Note *)(uintptr_t) buf;
3440                 name = (char *)(uintptr_t)(note + 1);
3441                 /*
3442                  * The name field is required to be nul-terminated, and
3443                  * n_namesz includes the terminating nul in observed
3444                  * implementations (contrary to the ELF-64 spec). A special
3445                  * case is needed for cores generated by some older Linux
3446                  * versions, which write a note named "CORE" without a nul
3447                  * terminator and n_namesz = 4.
3448                  */
3449                 if (note->n_namesz == 0)
3450                         name = "";
3451                 else if (note->n_namesz == 4 && strncmp(name, "CORE", 4) == 0)
3452                         name = "CORE";
3453                 else if (strnlen(name, note->n_namesz) >= note->n_namesz)
3454                         name = "<invalid>";
3455                 printf("  %-13s %#010jx", name, (uintmax_t) note->n_descsz);
3456                 printf("      %s\n", note_type(name, re->ehdr.e_type,
3457                     note->n_type));
3458                 buf += sizeof(Elf_Note) + roundup2(note->n_namesz, 4) +
3459                     roundup2(note->n_descsz, 4);
3460         }
3461 }
3462
3463 /*
3464  * Symbol versioning sections are the same for 32bit and 64bit
3465  * ELF objects.
3466  */
3467 #define Elf_Verdef      Elf32_Verdef
3468 #define Elf_Verdaux     Elf32_Verdaux
3469 #define Elf_Verneed     Elf32_Verneed
3470 #define Elf_Vernaux     Elf32_Vernaux
3471
3472 #define SAVE_VERSION_NAME(x, n, t)                                      \
3473         do {                                                            \
3474                 while (x >= re->ver_sz) {                               \
3475                         nv = realloc(re->ver,                           \
3476                             sizeof(*re->ver) * re->ver_sz * 2);         \
3477                         if (nv == NULL) {                               \
3478                                 warn("realloc failed");                 \
3479                                 free(re->ver);                          \
3480                                 return;                                 \
3481                         }                                               \
3482                         re->ver = nv;                                   \
3483                         for (i = re->ver_sz; i < re->ver_sz * 2; i++) { \
3484                                 re->ver[i].name = NULL;                 \
3485                                 re->ver[i].type = 0;                    \
3486                         }                                               \
3487                         re->ver_sz *= 2;                                \
3488                 }                                                       \
3489                 if (x > 1) {                                            \
3490                         re->ver[x].name = n;                            \
3491                         re->ver[x].type = t;                            \
3492                 }                                                       \
3493         } while (0)
3494
3495
3496 static void
3497 dump_verdef(struct readelf *re, int dump)
3498 {
3499         struct section *s;
3500         struct symver *nv;
3501         Elf_Data *d;
3502         Elf_Verdef *vd;
3503         Elf_Verdaux *vda;
3504         uint8_t *buf, *end, *buf2;
3505         const char *name;
3506         int elferr, i, j;
3507
3508         if ((s = re->vd_s) == NULL)
3509                 return;
3510         if (s->link >= re->shnum)
3511                 return;
3512
3513         if (re->ver == NULL) {
3514                 re->ver_sz = 16;
3515                 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3516                     NULL) {
3517                         warn("calloc failed");
3518                         return;
3519                 }
3520                 re->ver[0].name = "*local*";
3521                 re->ver[1].name = "*global*";
3522         }
3523
3524         if (dump)
3525                 printf("\nVersion definition section (%s):\n", s->name);
3526         (void) elf_errno();
3527         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3528                 elferr = elf_errno();
3529                 if (elferr != 0)
3530                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3531                 return;
3532         }
3533         if (d->d_size == 0)
3534                 return;
3535
3536         buf = d->d_buf;
3537         end = buf + d->d_size;
3538         while (buf + sizeof(Elf_Verdef) <= end) {
3539                 vd = (Elf_Verdef *) (uintptr_t) buf;
3540                 if (dump) {
3541                         printf("  0x%4.4lx", (unsigned long)
3542                             (buf - (uint8_t *)d->d_buf));
3543                         printf(" vd_version: %u vd_flags: %d"
3544                             " vd_ndx: %u vd_cnt: %u", vd->vd_version,
3545                             vd->vd_flags, vd->vd_ndx, vd->vd_cnt);
3546                 }
3547                 buf2 = buf + vd->vd_aux;
3548                 j = 0;
3549                 while (buf2 + sizeof(Elf_Verdaux) <= end && j < vd->vd_cnt) {
3550                         vda = (Elf_Verdaux *) (uintptr_t) buf2;
3551                         name = get_string(re, s->link, vda->vda_name);
3552                         if (j == 0) {
3553                                 if (dump)
3554                                         printf(" vda_name: %s\n", name);
3555                                 SAVE_VERSION_NAME((int)vd->vd_ndx, name, 1);
3556                         } else if (dump)
3557                                 printf("  0x%4.4lx parent: %s\n",
3558                                     (unsigned long) (buf2 -
3559                                     (uint8_t *)d->d_buf), name);
3560                         if (vda->vda_next == 0)
3561                                 break;
3562                         buf2 += vda->vda_next;
3563                         j++;
3564                 }
3565                 if (vd->vd_next == 0)
3566                         break;
3567                 buf += vd->vd_next;
3568         }
3569 }
3570
3571 static void
3572 dump_verneed(struct readelf *re, int dump)
3573 {
3574         struct section *s;
3575         struct symver *nv;
3576         Elf_Data *d;
3577         Elf_Verneed *vn;
3578         Elf_Vernaux *vna;
3579         uint8_t *buf, *end, *buf2;
3580         const char *name;
3581         int elferr, i, j;
3582
3583         if ((s = re->vn_s) == NULL)
3584                 return;
3585         if (s->link >= re->shnum)
3586                 return;
3587
3588         if (re->ver == NULL) {
3589                 re->ver_sz = 16;
3590                 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3591                     NULL) {
3592                         warn("calloc failed");
3593                         return;
3594                 }
3595                 re->ver[0].name = "*local*";
3596                 re->ver[1].name = "*global*";
3597         }
3598
3599         if (dump)
3600                 printf("\nVersion needed section (%s):\n", s->name);
3601         (void) elf_errno();
3602         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3603                 elferr = elf_errno();
3604                 if (elferr != 0)
3605                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3606                 return;
3607         }
3608         if (d->d_size == 0)
3609                 return;
3610
3611         buf = d->d_buf;
3612         end = buf + d->d_size;
3613         while (buf + sizeof(Elf_Verneed) <= end) {
3614                 vn = (Elf_Verneed *) (uintptr_t) buf;
3615                 if (dump) {
3616                         printf("  0x%4.4lx", (unsigned long)
3617                             (buf - (uint8_t *)d->d_buf));
3618                         printf(" vn_version: %u vn_file: %s vn_cnt: %u\n",
3619                             vn->vn_version,
3620                             get_string(re, s->link, vn->vn_file),
3621                             vn->vn_cnt);
3622                 }
3623                 buf2 = buf + vn->vn_aux;
3624                 j = 0;
3625                 while (buf2 + sizeof(Elf_Vernaux) <= end && j < vn->vn_cnt) {
3626                         vna = (Elf32_Vernaux *) (uintptr_t) buf2;
3627                         if (dump)
3628                                 printf("  0x%4.4lx", (unsigned long)
3629                                     (buf2 - (uint8_t *)d->d_buf));
3630                         name = get_string(re, s->link, vna->vna_name);
3631                         if (dump)
3632                                 printf("   vna_name: %s vna_flags: %u"
3633                                     " vna_other: %u\n", name,
3634                                     vna->vna_flags, vna->vna_other);
3635                         SAVE_VERSION_NAME((int)vna->vna_other, name, 0);
3636                         if (vna->vna_next == 0)
3637                                 break;
3638                         buf2 += vna->vna_next;
3639                         j++;
3640                 }
3641                 if (vn->vn_next == 0)
3642                         break;
3643                 buf += vn->vn_next;
3644         }
3645 }
3646
3647 static void
3648 dump_versym(struct readelf *re)
3649 {
3650         int i;
3651         uint16_t vs;
3652
3653         if (re->vs_s == NULL || re->ver == NULL || re->vs == NULL)
3654                 return;
3655         printf("\nVersion symbol section (%s):\n", re->vs_s->name);
3656         for (i = 0; i < re->vs_sz; i++) {
3657                 if ((i & 3) == 0) {
3658                         if (i > 0)
3659                                 putchar('\n');
3660                         printf("  %03x:", i);
3661                 }
3662                 vs = re->vs[i] & VERSYM_VERSION;
3663                 if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3664                         warnx("invalid versym version index %u", re->vs[i]);
3665                         break;
3666                 }
3667                 if (re->vs[i] & VERSYM_HIDDEN)
3668                         printf(" %3xh %-12s ", vs,
3669                             re->ver[re->vs[i] & VERSYM_VERSION].name);
3670                 else
3671                         printf(" %3x %-12s ", vs, re->ver[re->vs[i]].name);
3672         }
3673         putchar('\n');
3674 }
3675
3676 static void
3677 dump_ver(struct readelf *re)
3678 {
3679
3680         if (re->vs_s && re->ver && re->vs)
3681                 dump_versym(re);
3682         if (re->vd_s)
3683                 dump_verdef(re, 1);
3684         if (re->vn_s)
3685                 dump_verneed(re, 1);
3686 }
3687
3688 static void
3689 search_ver(struct readelf *re)
3690 {
3691         struct section *s;
3692         Elf_Data *d;
3693         int elferr, i;
3694
3695         for (i = 0; (size_t) i < re->shnum; i++) {
3696                 s = &re->sl[i];
3697                 if (s->type == SHT_SUNW_versym)
3698                         re->vs_s = s;
3699                 if (s->type == SHT_SUNW_verneed)
3700                         re->vn_s = s;
3701                 if (s->type == SHT_SUNW_verdef)
3702                         re->vd_s = s;
3703         }
3704         if (re->vd_s)
3705                 dump_verdef(re, 0);
3706         if (re->vn_s)
3707                 dump_verneed(re, 0);
3708         if (re->vs_s && re->ver != NULL) {
3709                 (void) elf_errno();
3710                 if ((d = elf_getdata(re->vs_s->scn, NULL)) == NULL) {
3711                         elferr = elf_errno();
3712                         if (elferr != 0)
3713                                 warnx("elf_getdata failed: %s",
3714                                     elf_errmsg(elferr));
3715                         return;
3716                 }
3717                 if (d->d_size == 0)
3718                         return;
3719                 re->vs = d->d_buf;
3720                 re->vs_sz = d->d_size / sizeof(Elf32_Half);
3721         }
3722 }
3723
3724 #undef  Elf_Verdef
3725 #undef  Elf_Verdaux
3726 #undef  Elf_Verneed
3727 #undef  Elf_Vernaux
3728 #undef  SAVE_VERSION_NAME
3729
3730 /*
3731  * Elf32_Lib and Elf64_Lib are identical.
3732  */
3733 #define Elf_Lib         Elf32_Lib
3734
3735 static void
3736 dump_liblist(struct readelf *re)
3737 {
3738         struct section *s;
3739         struct tm *t;
3740         time_t ti;
3741         char tbuf[20];
3742         Elf_Data *d;
3743         Elf_Lib *lib;
3744         int i, j, k, elferr, first, len;
3745
3746         for (i = 0; (size_t) i < re->shnum; i++) {
3747                 s = &re->sl[i];
3748                 if (s->type != SHT_GNU_LIBLIST)
3749                         continue;
3750                 if (s->link >= re->shnum)
3751                         continue;
3752                 (void) elf_errno();
3753                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3754                         elferr = elf_errno();
3755                         if (elferr != 0)
3756                                 warnx("elf_getdata failed: %s",
3757                                     elf_errmsg(elferr));
3758                         continue;
3759                 }
3760                 if (d->d_size <= 0)
3761                         continue;
3762                 lib = d->d_buf;
3763                 if (!get_ent_count(s, &len))
3764                         continue;
3765                 printf("\nLibrary list section '%s' ", s->name);
3766                 printf("contains %d entries:\n", len);
3767                 printf("%12s%24s%18s%10s%6s\n", "Library", "Time Stamp",
3768                     "Checksum", "Version", "Flags");
3769                 for (j = 0; (uint64_t) j < s->sz / s->entsize; j++) {
3770                         printf("%3d: ", j);
3771                         printf("%-20.20s ",
3772                             get_string(re, s->link, lib->l_name));
3773                         ti = lib->l_time_stamp;
3774                         t = gmtime(&ti);
3775                         snprintf(tbuf, sizeof(tbuf), "%04d-%02d-%02dT%02d:%02d"
3776                             ":%2d", t->tm_year + 1900, t->tm_mon + 1,
3777                             t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
3778                         printf("%-19.19s ", tbuf);
3779                         printf("0x%08x ", lib->l_checksum);
3780                         printf("%-7d %#x", lib->l_version, lib->l_flags);
3781                         if (lib->l_flags != 0) {
3782                                 first = 1;
3783                                 putchar('(');
3784                                 for (k = 0; l_flag[k].name != NULL; k++) {
3785                                         if ((l_flag[k].value & lib->l_flags) ==
3786                                             0)
3787                                                 continue;
3788                                         if (!first)
3789                                                 putchar(',');
3790                                         else
3791                                                 first = 0;
3792                                         printf("%s", l_flag[k].name);
3793                                 }
3794                                 putchar(')');
3795                         }
3796                         putchar('\n');
3797                         lib++;
3798                 }
3799         }
3800 }
3801
3802 #undef Elf_Lib
3803
3804 static void
3805 dump_section_groups(struct readelf *re)
3806 {
3807         struct section *s;
3808         const char *symname;
3809         Elf_Data *d;
3810         uint32_t *w;
3811         int i, j, elferr;
3812         size_t n;
3813
3814         for (i = 0; (size_t) i < re->shnum; i++) {
3815                 s = &re->sl[i];
3816                 if (s->type != SHT_GROUP)
3817                         continue;
3818                 if (s->link >= re->shnum)
3819                         continue;
3820                 (void) elf_errno();
3821                 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3822                         elferr = elf_errno();
3823                         if (elferr != 0)
3824                                 warnx("elf_getdata failed: %s",
3825                                     elf_errmsg(elferr));
3826                         continue;
3827                 }
3828                 if (d->d_size <= 0)
3829                         continue;
3830
3831                 w = d->d_buf;
3832
3833                 /* We only support COMDAT section. */
3834 #ifndef GRP_COMDAT
3835 #define GRP_COMDAT 0x1
3836 #endif
3837                 if ((*w++ & GRP_COMDAT) == 0)
3838                         return;
3839
3840                 if (s->entsize == 0)
3841                         s->entsize = 4;
3842
3843                 symname = get_symbol_name(re, s->link, s->info);
3844                 n = s->sz / s->entsize;
3845                 if (n-- < 1)
3846                         return;
3847
3848                 printf("\nCOMDAT group section [%5d] `%s' [%s] contains %ju"
3849                     " sections:\n", i, s->name, symname, (uintmax_t)n);
3850                 printf("   %-10.10s %s\n", "[Index]", "Name");
3851                 for (j = 0; (size_t) j < n; j++, w++) {
3852                         if (*w >= re->shnum) {
3853                                 warnx("invalid section index: %u", *w);
3854                                 continue;
3855                         }
3856                         printf("   [%5u]   %s\n", *w, re->sl[*w].name);
3857                 }
3858         }
3859 }
3860
3861 static uint8_t *
3862 dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe)
3863 {
3864         uint64_t val;
3865
3866         /*
3867          * According to ARM EABI: For tags > 32, even numbered tags have
3868          * a ULEB128 param and odd numbered ones have NUL-terminated
3869          * string param. This rule probably also applies for tags <= 32
3870          * if the object arch is not ARM.
3871          */
3872
3873         printf("  Tag_unknown_%ju: ", (uintmax_t) tag);
3874
3875         if (tag & 1) {
3876                 printf("%s\n", (char *) p);
3877                 p += strlen((char *) p) + 1;
3878         } else {
3879                 val = _decode_uleb128(&p, pe);
3880                 printf("%ju\n", (uintmax_t) val);
3881         }
3882
3883         return (p);
3884 }
3885
3886 static uint8_t *
3887 dump_compatibility_tag(uint8_t *p, uint8_t *pe)
3888 {
3889         uint64_t val;
3890
3891         val = _decode_uleb128(&p, pe);
3892         printf("flag = %ju, vendor = %s\n", (uintmax_t) val, p);
3893         p += strlen((char *) p) + 1;
3894
3895         return (p);
3896 }
3897
3898 static void
3899 dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
3900 {
3901         uint64_t tag, val;
3902         size_t i;
3903         int found, desc;
3904
3905         (void) re;
3906
3907         while (p < pe) {
3908                 tag = _decode_uleb128(&p, pe);
3909                 found = desc = 0;
3910                 for (i = 0; i < sizeof(aeabi_tags) / sizeof(aeabi_tags[0]);
3911                      i++) {
3912                         if (tag == aeabi_tags[i].tag) {
3913                                 found = 1;
3914                                 printf("  %s: ", aeabi_tags[i].s_tag);
3915                                 if (aeabi_tags[i].get_desc) {
3916                                         desc = 1;
3917                                         val = _decode_uleb128(&p, pe);
3918                                         printf("%s\n",
3919                                             aeabi_tags[i].get_desc(val));
3920                                 }
3921                                 break;
3922                         }
3923                         if (tag < aeabi_tags[i].tag)
3924                                 break;
3925                 }
3926                 if (!found) {
3927                         p = dump_unknown_tag(tag, p, pe);
3928                         continue;
3929                 }
3930                 if (desc)
3931                         continue;
3932
3933                 switch (tag) {
3934                 case 4:         /* Tag_CPU_raw_name */
3935                 case 5:         /* Tag_CPU_name */
3936                 case 67:        /* Tag_conformance */
3937                         printf("%s\n", (char *) p);
3938                         p += strlen((char *) p) + 1;
3939                         break;
3940                 case 32:        /* Tag_compatibility */
3941                         p = dump_compatibility_tag(p, pe);
3942                         break;
3943                 case 64:        /* Tag_nodefaults */
3944                         /* ignored, written as 0. */
3945                         (void) _decode_uleb128(&p, pe);
3946                         printf("True\n");
3947                         break;
3948                 case 65:        /* Tag_also_compatible_with */
3949                         val = _decode_uleb128(&p, pe);
3950                         /* Must be Tag_CPU_arch */
3951                         if (val != 6) {
3952                                 printf("unknown\n");
3953                                 break;
3954                         }
3955                         val = _decode_uleb128(&p, pe);
3956                         printf("%s\n", aeabi_cpu_arch(val));
3957                         /* Skip NUL terminator. */
3958                         p++;
3959                         break;
3960                 default:
3961                         putchar('\n');
3962                         break;
3963                 }
3964         }
3965 }
3966
3967 #ifndef Tag_GNU_MIPS_ABI_FP
3968 #define Tag_GNU_MIPS_ABI_FP     4
3969 #endif
3970
3971 static void
3972 dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
3973 {
3974         uint64_t tag, val;
3975
3976         (void) re;
3977
3978         while (p < pe) {
3979                 tag = _decode_uleb128(&p, pe);
3980                 switch (tag) {
3981                 case Tag_GNU_MIPS_ABI_FP:
3982                         val = _decode_uleb128(&p, pe);
3983                         printf("  Tag_GNU_MIPS_ABI_FP: %s\n", mips_abi_fp(val));
3984                         break;
3985                 case 32:        /* Tag_compatibility */
3986                         p = dump_compatibility_tag(p, pe);
3987                         break;
3988                 default:
3989                         p = dump_unknown_tag(tag, p, pe);
3990                         break;
3991                 }
3992         }
3993 }
3994
3995 #ifndef Tag_GNU_Power_ABI_FP
3996 #define Tag_GNU_Power_ABI_FP    4
3997 #endif
3998
3999 #ifndef Tag_GNU_Power_ABI_Vector
4000 #define Tag_GNU_Power_ABI_Vector        8
4001 #endif
4002
4003 static void
4004 dump_ppc_attributes(uint8_t *p, uint8_t *pe)
4005 {
4006         uint64_t tag, val;
4007
4008         while (p < pe) {
4009                 tag = _decode_uleb128(&p, pe);
4010                 switch (tag) {
4011                 case Tag_GNU_Power_ABI_FP:
4012                         val = _decode_uleb128(&p, pe);
4013                         printf("  Tag_GNU_Power_ABI_FP: %s\n", ppc_abi_fp(val));
4014                         break;
4015                 case Tag_GNU_Power_ABI_Vector:
4016                         val = _decode_uleb128(&p, pe);
4017                         printf("  Tag_GNU_Power_ABI_Vector: %s\n",
4018                             ppc_abi_vector(val));
4019                         break;
4020                 case 32:        /* Tag_compatibility */
4021                         p = dump_compatibility_tag(p, pe);
4022                         break;
4023                 default:
4024                         p = dump_unknown_tag(tag, p, pe);
4025                         break;
4026                 }
4027         }
4028 }
4029
4030 static void
4031 dump_attributes(struct readelf *re)
4032 {
4033         struct section *s;
4034         Elf_Data *d;
4035         uint8_t *p, *pe, *sp;
4036         size_t len, seclen, nlen, sublen;
4037         uint64_t val;
4038         int tag, i, elferr;
4039
4040         for (i = 0; (size_t) i < re->shnum; i++) {
4041                 s = &re->sl[i];
4042                 if (s->type != SHT_GNU_ATTRIBUTES &&
4043                     (re->ehdr.e_machine != EM_ARM || s->type != SHT_LOPROC + 3))
4044                         continue;
4045                 (void) elf_errno();
4046                 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4047                         elferr = elf_errno();
4048                         if (elferr != 0)
4049                                 warnx("elf_rawdata failed: %s",
4050                                     elf_errmsg(elferr));
4051                         continue;
4052                 }
4053                 if (d->d_size <= 0)
4054                         continue;
4055                 p = d->d_buf;
4056                 pe = p + d->d_size;
4057                 if (*p != 'A') {
4058                         printf("Unknown Attribute Section Format: %c\n",
4059                             (char) *p);
4060                         continue;
4061                 }
4062                 len = d->d_size - 1;
4063                 p++;
4064                 while (len > 0) {
4065                         if (len < 4) {
4066                                 warnx("truncated attribute section length");
4067                                 return;
4068                         }
4069                         seclen = re->dw_decode(&p, 4);
4070                         if (seclen > len) {
4071                                 warnx("invalid attribute section length");
4072                                 return;
4073                         }
4074                         len -= seclen;
4075                         nlen = strlen((char *) p) + 1;
4076                         if (nlen + 4 > seclen) {
4077                                 warnx("invalid attribute section name");
4078                                 return;
4079                         }
4080                         printf("Attribute Section: %s\n", (char *) p);
4081                         p += nlen;
4082                         seclen -= nlen + 4;
4083                         while (seclen > 0) {
4084                                 sp = p;
4085                                 tag = *p++;
4086                                 sublen = re->dw_decode(&p, 4);
4087                                 if (sublen > seclen) {
4088                                         warnx("invalid attribute sub-section"
4089                                             " length");
4090                                         return;
4091                                 }
4092                                 seclen -= sublen;
4093                                 printf("%s", top_tag(tag));
4094                                 if (tag == 2 || tag == 3) {
4095                                         putchar(':');
4096                                         for (;;) {
4097                                                 val = _decode_uleb128(&p, pe);
4098                                                 if (val == 0)
4099                                                         break;
4100                                                 printf(" %ju", (uintmax_t) val);
4101                                         }
4102                                 }
4103                                 putchar('\n');
4104                                 if (re->ehdr.e_machine == EM_ARM &&
4105                                     s->type == SHT_LOPROC + 3)
4106                                         dump_arm_attributes(re, p, sp + sublen);
4107                                 else if (re->ehdr.e_machine == EM_MIPS ||
4108                                     re->ehdr.e_machine == EM_MIPS_RS3_LE)
4109                                         dump_mips_attributes(re, p,
4110                                             sp + sublen);
4111                                 else if (re->ehdr.e_machine == EM_PPC)
4112                                         dump_ppc_attributes(p, sp + sublen);
4113                                 p = sp + sublen;
4114                         }
4115                 }
4116         }
4117 }
4118
4119 static void
4120 dump_mips_specific_info(struct readelf *re)
4121 {
4122         struct section *s;
4123         int i;
4124
4125         s = NULL;
4126         for (i = 0; (size_t) i < re->shnum; i++) {
4127                 s = &re->sl[i];
4128                 if (s->name != NULL && (!strcmp(s->name, ".MIPS.options") ||
4129                     (s->type == SHT_MIPS_OPTIONS))) {
4130                         dump_mips_options(re, s);
4131                 }
4132         }
4133
4134         if (s->name != NULL && (!strcmp(s->name, ".MIPS.abiflags") ||
4135             (s->type == SHT_MIPS_ABIFLAGS)))
4136                 dump_mips_abiflags(re, s);
4137
4138         /*
4139          * Dump .reginfo if present (although it will be ignored by an OS if a
4140          * .MIPS.options section is present, according to SGI mips64 spec).
4141          */
4142         for (i = 0; (size_t) i < re->shnum; i++) {
4143                 s = &re->sl[i];
4144                 if (s->name != NULL && (!strcmp(s->name, ".reginfo") ||
4145                     (s->type == SHT_MIPS_REGINFO)))
4146                         dump_mips_reginfo(re, s);
4147         }
4148 }
4149
4150 static void
4151 dump_mips_abiflags(struct readelf *re, struct section *s)
4152 {
4153         Elf_Data *d;
4154         uint8_t *p;
4155         int elferr;
4156         uint32_t isa_ext, ases, flags1, flags2;
4157         uint16_t version;
4158         uint8_t isa_level, isa_rev, gpr_size, cpr1_size, cpr2_size, fp_abi;
4159
4160         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4161                 elferr = elf_errno();
4162                 if (elferr != 0)
4163                         warnx("elf_rawdata failed: %s",
4164                             elf_errmsg(elferr));
4165                 return;
4166         }
4167         if (d->d_size != 24) {
4168                 warnx("invalid MIPS abiflags section size");
4169                 return;
4170         }
4171
4172         p = d->d_buf;
4173         version = re->dw_decode(&p, 2);
4174         printf("MIPS ABI Flags Version: %u", version);
4175         if (version != 0) {
4176                 printf(" (unknown)\n\n");
4177                 return;
4178         }
4179         printf("\n\n");
4180
4181         isa_level = re->dw_decode(&p, 1);
4182         isa_rev = re->dw_decode(&p, 1);
4183         gpr_size = re->dw_decode(&p, 1);
4184         cpr1_size = re->dw_decode(&p, 1);
4185         cpr2_size = re->dw_decode(&p, 1);
4186         fp_abi = re->dw_decode(&p, 1);
4187         isa_ext = re->dw_decode(&p, 4);
4188         ases = re->dw_decode(&p, 4);
4189         flags1 = re->dw_decode(&p, 4);
4190         flags2 = re->dw_decode(&p, 4);
4191
4192         printf("ISA: ");
4193         if (isa_rev <= 1)
4194                 printf("MIPS%u\n", isa_level);
4195         else
4196                 printf("MIPS%ur%u\n", isa_level, isa_rev);
4197         printf("GPR size: %d\n", get_mips_register_size(gpr_size));
4198         printf("CPR1 size: %d\n", get_mips_register_size(cpr1_size));
4199         printf("CPR2 size: %d\n", get_mips_register_size(cpr2_size));
4200         printf("FP ABI: ");
4201         switch (fp_abi) {
4202         case 3:
4203                 printf("Soft float");
4204                 break;
4205         default:
4206                 printf("%u", fp_abi);
4207                 break;
4208         }
4209         printf("\nISA Extension: %u\n", isa_ext);
4210         printf("ASEs: %u\n", ases);
4211         printf("FLAGS 1: %08x\n", flags1);
4212         printf("FLAGS 2: %08x\n", flags2);
4213 }
4214
4215 static int
4216 get_mips_register_size(uint8_t flag)
4217 {
4218         switch (flag) {
4219         case 0: return 0;
4220         case 1: return 32;
4221         case 2: return 64;
4222         case 3: return 128;
4223         default: return -1;
4224         }
4225 }
4226 static void
4227 dump_mips_reginfo(struct readelf *re, struct section *s)
4228 {
4229         Elf_Data *d;
4230         int elferr, len;
4231
4232         (void) elf_errno();
4233         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4234                 elferr = elf_errno();
4235                 if (elferr != 0)
4236                         warnx("elf_rawdata failed: %s",
4237                             elf_errmsg(elferr));
4238                 return;
4239         }
4240         if (d->d_size <= 0)
4241                 return;
4242         if (!get_ent_count(s, &len))
4243                 return;
4244
4245         printf("\nSection '%s' contains %d entries:\n", s->name, len);
4246         dump_mips_odk_reginfo(re, d->d_buf, d->d_size);
4247 }
4248
4249 static void
4250 dump_mips_options(struct readelf *re, struct section *s)
4251 {
4252         Elf_Data *d;
4253         uint32_t info;
4254         uint16_t sndx;
4255         uint8_t *p, *pe;
4256         uint8_t kind, size;
4257         int elferr;
4258
4259         (void) elf_errno();
4260         if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4261                 elferr = elf_errno();
4262                 if (elferr != 0)
4263                         warnx("elf_rawdata failed: %s",
4264                             elf_errmsg(elferr));
4265                 return;
4266         }
4267         if (d->d_size == 0)
4268                 return;
4269
4270         printf("\nSection %s contains:\n", s->name);
4271         p = d->d_buf;
4272         pe = p + d->d_size;
4273         while (p < pe) {
4274                 if (pe - p < 8) {
4275                         warnx("Truncated MIPS option header");
4276                         return;
4277                 }
4278                 kind = re->dw_decode(&p, 1);
4279                 size = re->dw_decode(&p, 1);
4280                 sndx = re->dw_decode(&p, 2);
4281                 info = re->dw_decode(&p, 4);
4282                 if (size < 8 || size - 8 > pe - p) {
4283                         warnx("Malformed MIPS option header");
4284                         return;
4285                 }
4286                 size -= 8;
4287                 switch (kind) {
4288                 case ODK_REGINFO:
4289                         dump_mips_odk_reginfo(re, p, size);
4290                         break;
4291                 case ODK_EXCEPTIONS:
4292                         printf(" EXCEPTIONS FPU_MIN: %#x\n",
4293                             info & OEX_FPU_MIN);
4294                         printf("%11.11s FPU_MAX: %#x\n", "",
4295                             info & OEX_FPU_MAX);
4296                         dump_mips_option_flags("", mips_exceptions_option,
4297                             info);
4298                         break;
4299                 case ODK_PAD:
4300                         printf(" %-10.10s section: %ju\n", "OPAD",
4301                             (uintmax_t) sndx);
4302                         dump_mips_option_flags("", mips_pad_option, info);
4303                         break;
4304                 case ODK_HWPATCH:
4305                         dump_mips_option_flags("HWPATCH", mips_hwpatch_option,
4306                             info);
4307                         break;
4308                 case ODK_HWAND:
4309                         dump_mips_option_flags("HWAND", mips_hwa_option, info);
4310                         break;
4311                 case ODK_HWOR:
4312                         dump_mips_option_flags("HWOR", mips_hwo_option, info);
4313                         break;
4314                 case ODK_FILL:
4315                         printf(" %-10.10s %#jx\n", "FILL", (uintmax_t) info);
4316                         break;
4317                 case ODK_TAGS:
4318                         printf(" %-10.10s\n", "TAGS");
4319                         break;
4320                 case ODK_GP_GROUP:
4321                         printf(" %-10.10s GP group number: %#x\n", "GP_GROUP",
4322                             info & 0xFFFF);
4323                         if (info & 0x10000)
4324                                 printf(" %-10.10s GP group is "
4325                                     "self-contained\n", "");
4326                         break;
4327                 case ODK_IDENT:
4328                         printf(" %-10.10s default GP group number: %#x\n",
4329                             "IDENT", info & 0xFFFF);
4330                         if (info & 0x10000)
4331                                 printf(" %-10.10s default GP group is "
4332                                     "self-contained\n", "");
4333                         break;
4334                 case ODK_PAGESIZE:
4335                         printf(" %-10.10s\n", "PAGESIZE");
4336                         break;
4337                 default:
4338                         break;
4339                 }
4340                 p += size;
4341         }
4342 }
4343
4344 static void
4345 dump_mips_option_flags(const char *name, struct mips_option *opt, uint64_t info)
4346 {
4347         int first;
4348
4349         first = 1;
4350         for (; opt->desc != NULL; opt++) {
4351                 if (info & opt->flag) {
4352                         printf(" %-10.10s %s\n", first ? name : "",
4353                             opt->desc);
4354                         first = 0;
4355                 }
4356         }
4357 }
4358
4359 static void
4360 dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz)
4361 {
4362         uint32_t ri_gprmask;
4363         uint32_t ri_cprmask[4];
4364         uint64_t ri_gp_value;
4365         uint8_t *pe;
4366         int i;
4367
4368         pe = p + sz;
4369         while (p < pe) {
4370                 ri_gprmask = re->dw_decode(&p, 4);
4371                 /* Skip ri_pad padding field for mips64. */
4372                 if (re->ec == ELFCLASS64)
4373                         re->dw_decode(&p, 4);
4374                 for (i = 0; i < 4; i++)
4375                         ri_cprmask[i] = re->dw_decode(&p, 4);
4376                 if (re->ec == ELFCLASS32)
4377                         ri_gp_value = re->dw_decode(&p, 4);
4378                 else
4379                         ri_gp_value = re->dw_decode(&p, 8);
4380                 printf(" %s    ", option_kind(ODK_REGINFO));
4381                 printf("ri_gprmask:    0x%08jx\n", (uintmax_t) ri_gprmask);
4382                 for (i = 0; i < 4; i++)
4383                         printf("%11.11s ri_cprmask[%d]: 0x%08jx\n", "", i,
4384                             (uintmax_t) ri_cprmask[i]);
4385                 printf("%12.12s", "");
4386                 printf("ri_gp_value:   %#jx\n", (uintmax_t) ri_gp_value);
4387         }
4388 }
4389
4390 static void
4391 dump_arch_specific_info(struct readelf *re)
4392 {
4393
4394         dump_liblist(re);
4395         dump_attributes(re);
4396
4397         switch (re->ehdr.e_machine) {
4398         case EM_MIPS:
4399         case EM_MIPS_RS3_LE:
4400                 dump_mips_specific_info(re);
4401         default:
4402                 break;
4403         }
4404 }
4405
4406 static const char *
4407 dwarf_regname(struct readelf *re, unsigned int num)
4408 {
4409         static char rx[32];
4410         const char *rn;
4411
4412         if ((rn = dwarf_reg(re->ehdr.e_machine, num)) != NULL)
4413                 return (rn);
4414
4415         snprintf(rx, sizeof(rx), "r%u", num);
4416
4417         return (rx);
4418 }
4419
4420 static void
4421 dump_dwarf_line(struct readelf *re)
4422 {
4423         struct section *s;
4424         Dwarf_Die die;
4425         Dwarf_Error de;
4426         Dwarf_Half tag, version, pointer_size;
4427         Dwarf_Unsigned offset, endoff, length, hdrlen, dirndx, mtime, fsize;
4428         Dwarf_Small minlen, defstmt, lrange, opbase, oplen;
4429         Elf_Data *d;
4430         char *pn;
4431         uint64_t address, file, line, column, isa, opsize, udelta;
4432         int64_t sdelta;
4433         uint8_t *p, *pe;
4434         int8_t lbase;
4435         int i, is_stmt, dwarf_size, elferr, ret;
4436
4437         printf("\nDump of debug contents of section .debug_line:\n");
4438
4439         s = NULL;
4440         for (i = 0; (size_t) i < re->shnum; i++) {
4441                 s = &re->sl[i];
4442                 if (s->name != NULL && !strcmp(s->name, ".debug_line"))
4443                         break;
4444         }
4445         if ((size_t) i >= re->shnum)
4446                 return;
4447
4448         (void) elf_errno();
4449         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4450                 elferr = elf_errno();
4451                 if (elferr != 0)
4452                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
4453                 return;
4454         }
4455         if (d->d_size <= 0)
4456                 return;
4457
4458         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4459             NULL, &de)) ==  DW_DLV_OK) {
4460                 die = NULL;
4461                 while (dwarf_siblingof(re->dbg, die, &die, &de) == DW_DLV_OK) {
4462                         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4463                                 warnx("dwarf_tag failed: %s",
4464                                     dwarf_errmsg(de));
4465                                 return;
4466                         }
4467                         /* XXX: What about DW_TAG_partial_unit? */
4468                         if (tag == DW_TAG_compile_unit)
4469                                 break;
4470                 }
4471                 if (die == NULL) {
4472                         warnx("could not find DW_TAG_compile_unit die");
4473                         return;
4474                 }
4475                 if (dwarf_attrval_unsigned(die, DW_AT_stmt_list, &offset,
4476                     &de) != DW_DLV_OK)
4477                         continue;
4478
4479                 length = re->dw_read(d, &offset, 4);
4480                 if (length == 0xffffffff) {
4481                         dwarf_size = 8;
4482                         length = re->dw_read(d, &offset, 8);
4483                 } else
4484                         dwarf_size = 4;
4485
4486                 if (length > d->d_size - offset) {
4487                         warnx("invalid .dwarf_line section");
4488                         continue;
4489                 }
4490
4491                 endoff = offset + length;
4492                 pe = (uint8_t *) d->d_buf + endoff;
4493                 version = re->dw_read(d, &offset, 2);
4494                 hdrlen = re->dw_read(d, &offset, dwarf_size);
4495                 minlen = re->dw_read(d, &offset, 1);
4496                 defstmt = re->dw_read(d, &offset, 1);
4497                 lbase = re->dw_read(d, &offset, 1);
4498                 lrange = re->dw_read(d, &offset, 1);
4499                 opbase = re->dw_read(d, &offset, 1);
4500
4501                 printf("\n");
4502                 printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
4503                 printf("  DWARF version:\t\t%u\n", version);
4504                 printf("  Prologue Length:\t\t%ju\n", (uintmax_t) hdrlen);
4505                 printf("  Minimum Instruction Length:\t%u\n", minlen);
4506                 printf("  Initial value of 'is_stmt':\t%u\n", defstmt);
4507                 printf("  Line Base:\t\t\t%d\n", lbase);
4508                 printf("  Line Range:\t\t\t%u\n", lrange);
4509                 printf("  Opcode Base:\t\t\t%u\n", opbase);
4510                 (void) dwarf_get_address_size(re->dbg, &pointer_size, &de);
4511                 printf("  (Pointer size:\t\t%u)\n", pointer_size);
4512
4513                 printf("\n");
4514                 printf(" Opcodes:\n");
4515                 for (i = 1; i < opbase; i++) {
4516                         oplen = re->dw_read(d, &offset, 1);
4517                         printf("  Opcode %d has %u args\n", i, oplen);
4518                 }
4519
4520                 printf("\n");
4521                 printf(" The Directory Table:\n");
4522                 p = (uint8_t *) d->d_buf + offset;
4523                 while (*p != '\0') {
4524                         printf("  %s\n", (char *) p);
4525                         p += strlen((char *) p) + 1;
4526                 }
4527
4528                 p++;
4529                 printf("\n");
4530                 printf(" The File Name Table:\n");
4531                 printf("  Entry\tDir\tTime\tSize\tName\n");
4532                 i = 0;
4533                 while (*p != '\0') {
4534                         i++;
4535                         pn = (char *) p;
4536                         p += strlen(pn) + 1;
4537                         dirndx = _decode_uleb128(&p, pe);
4538                         mtime = _decode_uleb128(&p, pe);
4539                         fsize = _decode_uleb128(&p, pe);
4540                         printf("  %d\t%ju\t%ju\t%ju\t%s\n", i,
4541                             (uintmax_t) dirndx, (uintmax_t) mtime,
4542                             (uintmax_t) fsize, pn);
4543                 }
4544
4545 #define RESET_REGISTERS                                         \
4546         do {                                                    \
4547                 address        = 0;                             \
4548                 file           = 1;                             \
4549                 line           = 1;                             \
4550                 column         = 0;                             \
4551                 is_stmt        = defstmt;                       \
4552         } while(0)
4553
4554 #define LINE(x) (lbase + (((x) - opbase) % lrange))
4555 #define ADDRESS(x) ((((x) - opbase) / lrange) * minlen)
4556
4557                 p++;
4558                 printf("\n");
4559                 printf(" Line Number Statements:\n");
4560
4561                 RESET_REGISTERS;
4562
4563                 while (p < pe) {
4564
4565                         if (*p == 0) {
4566                                 /*
4567                                  * Extended Opcodes.
4568                                  */
4569                                 p++;
4570                                 opsize = _decode_uleb128(&p, pe);
4571                                 printf("  Extended opcode %u: ", *p);
4572                                 switch (*p) {
4573                                 case DW_LNE_end_sequence:
4574                                         p++;
4575                                         RESET_REGISTERS;
4576                                         printf("End of Sequence\n");
4577                                         break;
4578                                 case DW_LNE_set_address:
4579                                         p++;
4580                                         address = re->dw_decode(&p,
4581                                             pointer_size);
4582                                         printf("set Address to %#jx\n",
4583                                             (uintmax_t) address);
4584                                         break;
4585                                 case DW_LNE_define_file:
4586                                         p++;
4587                                         pn = (char *) p;
4588                                         p += strlen(pn) + 1;
4589                                         dirndx = _decode_uleb128(&p, pe);
4590                                         mtime = _decode_uleb128(&p, pe);
4591                                         fsize = _decode_uleb128(&p, pe);
4592                                         printf("define new file: %s\n", pn);
4593                                         break;
4594                                 default:
4595                                         /* Unrecognized extened opcodes. */
4596                                         p += opsize;
4597                                         printf("unknown opcode\n");
4598                                 }
4599                         } else if (*p > 0 && *p < opbase) {
4600                                 /*
4601                                  * Standard Opcodes.
4602                                  */
4603                                 switch(*p++) {
4604                                 case DW_LNS_copy:
4605                                         printf("  Copy\n");
4606                                         break;
4607                                 case DW_LNS_advance_pc:
4608                                         udelta = _decode_uleb128(&p, pe) *
4609                                             minlen;
4610                                         address += udelta;
4611                                         printf("  Advance PC by %ju to %#jx\n",
4612                                             (uintmax_t) udelta,
4613                                             (uintmax_t) address);
4614                                         break;
4615                                 case DW_LNS_advance_line:
4616                                         sdelta = _decode_sleb128(&p, pe);
4617                                         line += sdelta;
4618                                         printf("  Advance Line by %jd to %ju\n",
4619                                             (intmax_t) sdelta,
4620                                             (uintmax_t) line);
4621                                         break;
4622                                 case DW_LNS_set_file:
4623                                         file = _decode_uleb128(&p, pe);
4624                                         printf("  Set File to %ju\n",
4625                                             (uintmax_t) file);
4626                                         break;
4627                                 case DW_LNS_set_column:
4628                                         column = _decode_uleb128(&p, pe);
4629                                         printf("  Set Column to %ju\n",
4630                                             (uintmax_t) column);
4631                                         break;
4632                                 case DW_LNS_negate_stmt:
4633                                         is_stmt = !is_stmt;
4634                                         printf("  Set is_stmt to %d\n", is_stmt);
4635                                         break;
4636                                 case DW_LNS_set_basic_block:
4637                                         printf("  Set basic block flag\n");
4638                                         break;
4639                                 case DW_LNS_const_add_pc:
4640                                         address += ADDRESS(255);
4641                                         printf("  Advance PC by constant %ju"
4642                                             " to %#jx\n",
4643                                             (uintmax_t) ADDRESS(255),
4644                                             (uintmax_t) address);
4645                                         break;
4646                                 case DW_LNS_fixed_advance_pc:
4647                                         udelta = re->dw_decode(&p, 2);
4648                                         address += udelta;
4649                                         printf("  Advance PC by fixed value "
4650                                             "%ju to %#jx\n",
4651                                             (uintmax_t) udelta,
4652                                             (uintmax_t) address);
4653                                         break;
4654                                 case DW_LNS_set_prologue_end:
4655                                         printf("  Set prologue end flag\n");
4656                                         break;
4657                                 case DW_LNS_set_epilogue_begin:
4658                                         printf("  Set epilogue begin flag\n");
4659                                         break;
4660                                 case DW_LNS_set_isa:
4661                                         isa = _decode_uleb128(&p, pe);
4662                                         printf("  Set isa to %ju\n",
4663                                             (uintmax_t) isa);
4664                                         break;
4665                                 default:
4666                                         /* Unrecognized extended opcodes. */
4667                                         printf("  Unknown extended opcode %u\n",
4668                                             *(p - 1));
4669                                         break;
4670                                 }
4671
4672                         } else {
4673                                 /*
4674                                  * Special Opcodes.
4675                                  */
4676                                 line += LINE(*p);
4677                                 address += ADDRESS(*p);
4678                                 printf("  Special opcode %u: advance Address "
4679                                     "by %ju to %#jx and Line by %jd to %ju\n",
4680                                     *p - opbase, (uintmax_t) ADDRESS(*p),
4681                                     (uintmax_t) address, (intmax_t) LINE(*p),
4682                                     (uintmax_t) line);
4683                                 p++;
4684                         }
4685
4686
4687                 }
4688         }
4689         if (ret == DW_DLV_ERROR)
4690                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
4691
4692 #undef  RESET_REGISTERS
4693 #undef  LINE
4694 #undef  ADDRESS
4695 }
4696
4697 static void
4698 dump_dwarf_line_decoded(struct readelf *re)
4699 {
4700         Dwarf_Die die;
4701         Dwarf_Line *linebuf, ln;
4702         Dwarf_Addr lineaddr;
4703         Dwarf_Signed linecount, srccount;
4704         Dwarf_Unsigned lineno, fn;
4705         Dwarf_Error de;
4706         const char *dir, *file;
4707         char **srcfiles;
4708         int i, ret;
4709
4710         printf("Decoded dump of debug contents of section .debug_line:\n\n");
4711         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4712             NULL, &de)) == DW_DLV_OK) {
4713                 if (dwarf_siblingof(re->dbg, NULL, &die, &de) != DW_DLV_OK)
4714                         continue;
4715                 if (dwarf_attrval_string(die, DW_AT_name, &file, &de) !=
4716                     DW_DLV_OK)
4717                         file = NULL;
4718                 if (dwarf_attrval_string(die, DW_AT_comp_dir, &dir, &de) !=
4719                     DW_DLV_OK)
4720                         dir = NULL;
4721                 printf("CU: ");
4722                 if (dir && file)
4723                         printf("%s/", dir);
4724                 if (file)
4725                         printf("%s", file);
4726                 putchar('\n');
4727                 printf("%-37s %11s   %s\n", "Filename", "Line Number",
4728                     "Starting Address");
4729                 if (dwarf_srclines(die, &linebuf, &linecount, &de) != DW_DLV_OK)
4730                         continue;
4731                 if (dwarf_srcfiles(die, &srcfiles, &srccount, &de) != DW_DLV_OK)
4732                         continue;
4733                 for (i = 0; i < linecount; i++) {
4734                         ln = linebuf[i];
4735                         if (dwarf_line_srcfileno(ln, &fn, &de) != DW_DLV_OK)
4736                                 continue;
4737                         if (dwarf_lineno(ln, &lineno, &de) != DW_DLV_OK)
4738                                 continue;
4739                         if (dwarf_lineaddr(ln, &lineaddr, &de) != DW_DLV_OK)
4740                                 continue;
4741                         printf("%-37s %11ju %#18jx\n",
4742                             basename(srcfiles[fn - 1]), (uintmax_t) lineno,
4743                             (uintmax_t) lineaddr);
4744                 }
4745                 putchar('\n');
4746         }
4747 }
4748
4749 static void
4750 dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level)
4751 {
4752         Dwarf_Attribute *attr_list;
4753         Dwarf_Die ret_die;
4754         Dwarf_Off dieoff, cuoff, culen, attroff;
4755         Dwarf_Unsigned ate, lang, v_udata, v_sig;
4756         Dwarf_Signed attr_count, v_sdata;
4757         Dwarf_Off v_off;
4758         Dwarf_Addr v_addr;
4759         Dwarf_Half tag, attr, form;
4760         Dwarf_Block *v_block;
4761         Dwarf_Bool v_bool, is_info;
4762         Dwarf_Sig8 v_sig8;
4763         Dwarf_Error de;
4764         Dwarf_Ptr v_expr;
4765         const char *tag_str, *attr_str, *ate_str, *lang_str;
4766         char unk_tag[32], unk_attr[32];
4767         char *v_str;
4768         uint8_t *b, *p;
4769         int i, j, abc, ret;
4770
4771         if (dwarf_dieoffset(die, &dieoff, &de) != DW_DLV_OK) {
4772                 warnx("dwarf_dieoffset failed: %s", dwarf_errmsg(de));
4773                 goto cont_search;
4774         }
4775
4776         printf(" <%d><%jx>: ", level, (uintmax_t) dieoff);
4777
4778         if (dwarf_die_CU_offset_range(die, &cuoff, &culen, &de) != DW_DLV_OK) {
4779                 warnx("dwarf_die_CU_offset_range failed: %s",
4780                       dwarf_errmsg(de));
4781                 cuoff = 0;
4782         }
4783
4784         abc = dwarf_die_abbrev_code(die);
4785         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4786                 warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
4787                 goto cont_search;
4788         }
4789         if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
4790                 snprintf(unk_tag, sizeof(unk_tag), "[Unknown Tag: %#x]", tag);
4791                 tag_str = unk_tag;
4792         }
4793
4794         printf("Abbrev Number: %d (%s)\n", abc, tag_str);
4795
4796         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
4797             DW_DLV_OK) {
4798                 if (ret == DW_DLV_ERROR)
4799                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
4800                 goto cont_search;
4801         }
4802
4803         for (i = 0; i < attr_count; i++) {
4804                 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
4805                         warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
4806                         continue;
4807                 }
4808                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
4809                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
4810                         continue;
4811                 }
4812                 if (dwarf_get_AT_name(attr, &attr_str) != DW_DLV_OK) {
4813                         snprintf(unk_attr, sizeof(unk_attr),
4814                             "[Unknown AT: %#x]", attr);
4815                         attr_str = unk_attr;
4816                 }
4817                 if (dwarf_attroffset(attr_list[i], &attroff, &de) !=
4818                     DW_DLV_OK) {
4819                         warnx("dwarf_attroffset failed: %s", dwarf_errmsg(de));
4820                         attroff = 0;
4821                 }
4822                 printf("    <%jx>   %-18s: ", (uintmax_t) attroff, attr_str);
4823                 switch (form) {
4824                 case DW_FORM_ref_addr:
4825                 case DW_FORM_sec_offset:
4826                         if (dwarf_global_formref(attr_list[i], &v_off, &de) !=
4827                             DW_DLV_OK) {
4828                                 warnx("dwarf_global_formref failed: %s",
4829                                     dwarf_errmsg(de));
4830                                 continue;
4831                         }
4832                         if (form == DW_FORM_ref_addr)
4833                                 printf("<0x%jx>", (uintmax_t) v_off);
4834                         else
4835                                 printf("0x%jx", (uintmax_t) v_off);
4836                         break;
4837
4838                 case DW_FORM_ref1:
4839                 case DW_FORM_ref2:
4840                 case DW_FORM_ref4:
4841                 case DW_FORM_ref8:
4842                 case DW_FORM_ref_udata:
4843                         if (dwarf_formref(attr_list[i], &v_off, &de) !=
4844                             DW_DLV_OK) {
4845                                 warnx("dwarf_formref failed: %s",
4846                                     dwarf_errmsg(de));
4847                                 continue;
4848                         }
4849                         v_off += cuoff;
4850                         printf("<0x%jx>", (uintmax_t) v_off);
4851                         break;
4852
4853                 case DW_FORM_addr:
4854                         if (dwarf_formaddr(attr_list[i], &v_addr, &de) !=
4855                             DW_DLV_OK) {
4856                                 warnx("dwarf_formaddr failed: %s",
4857                                     dwarf_errmsg(de));
4858                                 continue;
4859                         }
4860                         printf("%#jx", (uintmax_t) v_addr);
4861                         break;
4862
4863                 case DW_FORM_data1:
4864                 case DW_FORM_data2:
4865                 case DW_FORM_data4:
4866                 case DW_FORM_data8:
4867                 case DW_FORM_udata:
4868                         if (dwarf_formudata(attr_list[i], &v_udata, &de) !=
4869                             DW_DLV_OK) {
4870                                 warnx("dwarf_formudata failed: %s",
4871                                     dwarf_errmsg(de));
4872                                 continue;
4873                         }
4874                         if (attr == DW_AT_high_pc)
4875                                 printf("0x%jx", (uintmax_t) v_udata);
4876                         else
4877                                 printf("%ju", (uintmax_t) v_udata);
4878                         break;
4879
4880                 case DW_FORM_sdata:
4881                         if (dwarf_formsdata(attr_list[i], &v_sdata, &de) !=
4882                             DW_DLV_OK) {
4883                                 warnx("dwarf_formudata failed: %s",
4884                                     dwarf_errmsg(de));
4885                                 continue;
4886                         }
4887                         printf("%jd", (intmax_t) v_sdata);
4888                         break;
4889
4890                 case DW_FORM_flag:
4891                         if (dwarf_formflag(attr_list[i], &v_bool, &de) !=
4892                             DW_DLV_OK) {
4893                                 warnx("dwarf_formflag failed: %s",
4894                                     dwarf_errmsg(de));
4895                                 continue;
4896                         }
4897                         printf("%jd", (intmax_t) v_bool);
4898                         break;
4899
4900                 case DW_FORM_flag_present:
4901                         putchar('1');
4902                         break;
4903
4904                 case DW_FORM_string:
4905                 case DW_FORM_strp:
4906                         if (dwarf_formstring(attr_list[i], &v_str, &de) !=
4907                             DW_DLV_OK) {
4908                                 warnx("dwarf_formstring failed: %s",
4909                                     dwarf_errmsg(de));
4910                                 continue;
4911                         }
4912                         if (form == DW_FORM_string)
4913                                 printf("%s", v_str);
4914                         else
4915                                 printf("(indirect string) %s", v_str);
4916                         break;
4917
4918                 case DW_FORM_block:
4919                 case DW_FORM_block1:
4920                 case DW_FORM_block2:
4921                 case DW_FORM_block4:
4922                         if (dwarf_formblock(attr_list[i], &v_block, &de) !=
4923                             DW_DLV_OK) {
4924                                 warnx("dwarf_formblock failed: %s",
4925                                     dwarf_errmsg(de));
4926                                 continue;
4927                         }
4928                         printf("%ju byte block:", (uintmax_t) v_block->bl_len);
4929                         b = v_block->bl_data;
4930                         for (j = 0; (Dwarf_Unsigned) j < v_block->bl_len; j++)
4931                                 printf(" %x", b[j]);
4932                         printf("\t(");
4933                         dump_dwarf_block(re, v_block->bl_data, v_block->bl_len);
4934                         putchar(')');
4935                         break;
4936
4937                 case DW_FORM_exprloc:
4938                         if (dwarf_formexprloc(attr_list[i], &v_udata, &v_expr,
4939                             &de) != DW_DLV_OK) {
4940                                 warnx("dwarf_formexprloc failed: %s",
4941                                     dwarf_errmsg(de));
4942                                 continue;
4943                         }
4944                         printf("%ju byte block:", (uintmax_t) v_udata);
4945                         b = v_expr;
4946                         for (j = 0; (Dwarf_Unsigned) j < v_udata; j++)
4947                                 printf(" %x", b[j]);
4948                         printf("\t(");
4949                         dump_dwarf_block(re, v_expr, v_udata);
4950                         putchar(')');
4951                         break;
4952
4953                 case DW_FORM_ref_sig8:
4954                         if (dwarf_formsig8(attr_list[i], &v_sig8, &de) !=
4955                             DW_DLV_OK) {
4956                                 warnx("dwarf_formsig8 failed: %s",
4957                                     dwarf_errmsg(de));
4958                                 continue;
4959                         }
4960                         p = (uint8_t *)(uintptr_t) &v_sig8.signature[0];
4961                         v_sig = re->dw_decode(&p, 8);
4962                         printf("signature: 0x%jx", (uintmax_t) v_sig);
4963                 }
4964                 switch (attr) {
4965                 case DW_AT_encoding:
4966                         if (dwarf_attrval_unsigned(die, attr, &ate, &de) !=
4967                             DW_DLV_OK)
4968                                 break;
4969                         if (dwarf_get_ATE_name(ate, &ate_str) != DW_DLV_OK)
4970                                 ate_str = "DW_ATE_UNKNOWN";
4971                         printf("\t(%s)", &ate_str[strlen("DW_ATE_")]);
4972                         break;
4973
4974                 case DW_AT_language:
4975                         if (dwarf_attrval_unsigned(die, attr, &lang, &de) !=
4976                             DW_DLV_OK)
4977                                 break;
4978                         if (dwarf_get_LANG_name(lang, &lang_str) != DW_DLV_OK)
4979                                 break;
4980                         printf("\t(%s)", &lang_str[strlen("DW_LANG_")]);
4981                         break;
4982
4983                 case DW_AT_location:
4984                 case DW_AT_string_length:
4985                 case DW_AT_return_addr:
4986                 case DW_AT_data_member_location:
4987                 case DW_AT_frame_base:
4988                 case DW_AT_segment:
4989                 case DW_AT_static_link:
4990                 case DW_AT_use_location:
4991                 case DW_AT_vtable_elem_location:
4992                         switch (form) {
4993                         case DW_FORM_data4:
4994                         case DW_FORM_data8:
4995                         case DW_FORM_sec_offset:
4996                                 printf("\t(location list)");
4997                                 break;
4998                         default:
4999                                 break;
5000                         }
5001
5002                 default:
5003                         break;
5004                 }
5005                 putchar('\n');
5006         }
5007
5008
5009 cont_search:
5010         /* Search children. */
5011         ret = dwarf_child(die, &ret_die, &de);
5012         if (ret == DW_DLV_ERROR)
5013                 warnx("dwarf_child: %s", dwarf_errmsg(de));
5014         else if (ret == DW_DLV_OK)
5015                 dump_dwarf_die(re, ret_die, level + 1);
5016
5017         /* Search sibling. */
5018         is_info = dwarf_get_die_infotypes_flag(die);
5019         ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
5020         if (ret == DW_DLV_ERROR)
5021                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5022         else if (ret == DW_DLV_OK)
5023                 dump_dwarf_die(re, ret_die, level);
5024
5025         dwarf_dealloc(re->dbg, die, DW_DLA_DIE);
5026 }
5027
5028 static void
5029 set_cu_context(struct readelf *re, Dwarf_Half psize, Dwarf_Half osize,
5030     Dwarf_Half ver)
5031 {
5032
5033         re->cu_psize = psize;
5034         re->cu_osize = osize;
5035         re->cu_ver = ver;
5036 }
5037
5038 static void
5039 dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info)
5040 {
5041         struct section *s;
5042         Dwarf_Die die;
5043         Dwarf_Error de;
5044         Dwarf_Half tag, version, pointer_size, off_size;
5045         Dwarf_Off cu_offset, cu_length;
5046         Dwarf_Off aboff;
5047         Dwarf_Unsigned typeoff;
5048         Dwarf_Sig8 sig8;
5049         Dwarf_Unsigned sig;
5050         uint8_t *p;
5051         const char *sn;
5052         int i, ret;
5053
5054         sn = is_info ? ".debug_info" : ".debug_types";
5055
5056         s = NULL;
5057         for (i = 0; (size_t) i < re->shnum; i++) {
5058                 s = &re->sl[i];
5059                 if (s->name != NULL && !strcmp(s->name, sn))
5060                         break;
5061         }
5062         if ((size_t) i >= re->shnum)
5063                 return;
5064
5065         do {
5066                 printf("\nDump of debug contents of section %s:\n", sn);
5067
5068                 while ((ret = dwarf_next_cu_header_c(re->dbg, is_info, NULL,
5069                     &version, &aboff, &pointer_size, &off_size, NULL, &sig8,
5070                     &typeoff, NULL, &de)) == DW_DLV_OK) {
5071                         set_cu_context(re, pointer_size, off_size, version);
5072                         die = NULL;
5073                         while (dwarf_siblingof_b(re->dbg, die, &die, is_info,
5074                             &de) == DW_DLV_OK) {
5075                                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5076                                         warnx("dwarf_tag failed: %s",
5077                                             dwarf_errmsg(de));
5078                                         continue;
5079                                 }
5080                                 /* XXX: What about DW_TAG_partial_unit? */
5081                                 if ((is_info && tag == DW_TAG_compile_unit) ||
5082                                     (!is_info && tag == DW_TAG_type_unit))
5083                                         break;
5084                         }
5085                         if (die == NULL && is_info) {
5086                                 warnx("could not find DW_TAG_compile_unit "
5087                                     "die");
5088                                 continue;
5089                         } else if (die == NULL && !is_info) {
5090                                 warnx("could not find DW_TAG_type_unit die");
5091                                 continue;
5092                         }
5093
5094                         if (dwarf_die_CU_offset_range(die, &cu_offset,
5095                             &cu_length, &de) != DW_DLV_OK) {
5096                                 warnx("dwarf_die_CU_offset failed: %s",
5097                                     dwarf_errmsg(de));
5098                                 continue;
5099                         }
5100
5101                         cu_length -= off_size == 4 ? 4 : 12;
5102
5103                         sig = 0;
5104                         if (!is_info) {
5105                                 p = (uint8_t *)(uintptr_t) &sig8.signature[0];
5106                                 sig = re->dw_decode(&p, 8);
5107                         }
5108
5109                         printf("\n  Type Unit @ offset 0x%jx:\n",
5110                             (uintmax_t) cu_offset);
5111                         printf("    Length:\t\t%#jx (%d-bit)\n",
5112                             (uintmax_t) cu_length, off_size == 4 ? 32 : 64);
5113                         printf("    Version:\t\t%u\n", version);
5114                         printf("    Abbrev Offset:\t0x%jx\n",
5115                             (uintmax_t) aboff);
5116                         printf("    Pointer Size:\t%u\n", pointer_size);
5117                         if (!is_info) {
5118                                 printf("    Signature:\t\t0x%016jx\n",
5119                                     (uintmax_t) sig);
5120                                 printf("    Type Offset:\t0x%jx\n",
5121                                     (uintmax_t) typeoff);
5122                         }
5123
5124                         dump_dwarf_die(re, die, 0);
5125                 }
5126                 if (ret == DW_DLV_ERROR)
5127                         warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5128                 if (is_info)
5129                         break;
5130         } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
5131 }
5132
5133 static void
5134 dump_dwarf_abbrev(struct readelf *re)
5135 {
5136         Dwarf_Abbrev ab;
5137         Dwarf_Off aboff, atoff;
5138         Dwarf_Unsigned length, attr_count;
5139         Dwarf_Signed flag, form;
5140         Dwarf_Half tag, attr;
5141         Dwarf_Error de;
5142         const char *tag_str, *attr_str, *form_str;
5143         char unk_tag[32], unk_attr[32], unk_form[32];
5144         int i, j, ret;
5145
5146         printf("\nContents of section .debug_abbrev:\n\n");
5147
5148         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, &aboff,
5149             NULL, NULL, &de)) ==  DW_DLV_OK) {
5150                 printf("  Number TAG\n");
5151                 i = 0;
5152                 while ((ret = dwarf_get_abbrev(re->dbg, aboff, &ab, &length,
5153                     &attr_count, &de)) == DW_DLV_OK) {
5154                         if (length == 1) {
5155                                 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5156                                 break;
5157                         }
5158                         aboff += length;
5159                         printf("%4d", ++i);
5160                         if (dwarf_get_abbrev_tag(ab, &tag, &de) != DW_DLV_OK) {
5161                                 warnx("dwarf_get_abbrev_tag failed: %s",
5162                                     dwarf_errmsg(de));
5163                                 goto next_abbrev;
5164                         }
5165                         if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5166                                 snprintf(unk_tag, sizeof(unk_tag),
5167                                     "[Unknown Tag: %#x]", tag);
5168                                 tag_str = unk_tag;
5169                         }
5170                         if (dwarf_get_abbrev_children_flag(ab, &flag, &de) !=
5171                             DW_DLV_OK) {
5172                                 warnx("dwarf_get_abbrev_children_flag failed:"
5173                                     " %s", dwarf_errmsg(de));
5174                                 goto next_abbrev;
5175                         }
5176                         printf("      %s    %s\n", tag_str,
5177                             flag ? "[has children]" : "[no children]");
5178                         for (j = 0; (Dwarf_Unsigned) j < attr_count; j++) {
5179                                 if (dwarf_get_abbrev_entry(ab, (Dwarf_Signed) j,
5180                                     &attr, &form, &atoff, &de) != DW_DLV_OK) {
5181                                         warnx("dwarf_get_abbrev_entry failed:"
5182                                             " %s", dwarf_errmsg(de));
5183                                         continue;
5184                                 }
5185                                 if (dwarf_get_AT_name(attr, &attr_str) !=
5186                                     DW_DLV_OK) {
5187                                         snprintf(unk_attr, sizeof(unk_attr),
5188                                             "[Unknown AT: %#x]", attr);
5189                                         attr_str = unk_attr;
5190                                 }
5191                                 if (dwarf_get_FORM_name(form, &form_str) !=
5192                                     DW_DLV_OK) {
5193                                         snprintf(unk_form, sizeof(unk_form),
5194                                             "[Unknown Form: %#x]",
5195                                             (Dwarf_Half) form);
5196                                         form_str = unk_form;
5197                                 }
5198                                 printf("    %-18s %s\n", attr_str, form_str);
5199                         }
5200                 next_abbrev:
5201                         dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5202                 }
5203                 if (ret != DW_DLV_OK)
5204                         warnx("dwarf_get_abbrev: %s", dwarf_errmsg(de));
5205         }
5206         if (ret == DW_DLV_ERROR)
5207                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5208 }
5209
5210 static void
5211 dump_dwarf_pubnames(struct readelf *re)
5212 {
5213         struct section *s;
5214         Dwarf_Off die_off;
5215         Dwarf_Unsigned offset, length, nt_cu_offset, nt_cu_length;
5216         Dwarf_Signed cnt;
5217         Dwarf_Global *globs;
5218         Dwarf_Half nt_version;
5219         Dwarf_Error de;
5220         Elf_Data *d;
5221         char *glob_name;
5222         int i, dwarf_size, elferr;
5223
5224         printf("\nContents of the .debug_pubnames section:\n");
5225
5226         s = NULL;
5227         for (i = 0; (size_t) i < re->shnum; i++) {
5228                 s = &re->sl[i];
5229                 if (s->name != NULL && !strcmp(s->name, ".debug_pubnames"))
5230                         break;
5231         }
5232         if ((size_t) i >= re->shnum)
5233                 return;
5234
5235         (void) elf_errno();
5236         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5237                 elferr = elf_errno();
5238                 if (elferr != 0)
5239                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
5240                 return;
5241         }
5242         if (d->d_size <= 0)
5243                 return;
5244
5245         /* Read in .debug_pubnames section table header. */
5246         offset = 0;
5247         length = re->dw_read(d, &offset, 4);
5248         if (length == 0xffffffff) {
5249                 dwarf_size = 8;
5250                 length = re->dw_read(d, &offset, 8);
5251         } else
5252                 dwarf_size = 4;
5253
5254         if (length > d->d_size - offset) {
5255                 warnx("invalid .dwarf_pubnames section");
5256                 return;
5257         }
5258
5259         nt_version = re->dw_read(d, &offset, 2);
5260         nt_cu_offset = re->dw_read(d, &offset, dwarf_size);
5261         nt_cu_length = re->dw_read(d, &offset, dwarf_size);
5262         printf("  Length:\t\t\t\t%ju\n", (uintmax_t) length);
5263         printf("  Version:\t\t\t\t%u\n", nt_version);
5264         printf("  Offset into .debug_info section:\t%ju\n",
5265             (uintmax_t) nt_cu_offset);
5266         printf("  Size of area in .debug_info section:\t%ju\n",
5267             (uintmax_t) nt_cu_length);
5268
5269         if (dwarf_get_globals(re->dbg, &globs, &cnt, &de) != DW_DLV_OK) {
5270                 warnx("dwarf_get_globals failed: %s", dwarf_errmsg(de));
5271                 return;
5272         }
5273
5274         printf("\n    Offset      Name\n");
5275         for (i = 0; i < cnt; i++) {
5276                 if (dwarf_globname(globs[i], &glob_name, &de) != DW_DLV_OK) {
5277                         warnx("dwarf_globname failed: %s", dwarf_errmsg(de));
5278                         continue;
5279                 }
5280                 if (dwarf_global_die_offset(globs[i], &die_off, &de) !=
5281                     DW_DLV_OK) {
5282                         warnx("dwarf_global_die_offset failed: %s",
5283                             dwarf_errmsg(de));
5284                         continue;
5285                 }
5286                 printf("    %-11ju %s\n", (uintmax_t) die_off, glob_name);
5287         }
5288 }
5289
5290 static void
5291 dump_dwarf_aranges(struct readelf *re)
5292 {
5293         struct section *s;
5294         Dwarf_Arange *aranges;
5295         Dwarf_Addr start;
5296         Dwarf_Unsigned offset, length, as_cu_offset;
5297         Dwarf_Off die_off;
5298         Dwarf_Signed cnt;
5299         Dwarf_Half as_version, as_addrsz, as_segsz;
5300         Dwarf_Error de;
5301         Elf_Data *d;
5302         int i, dwarf_size, elferr;
5303
5304         printf("\nContents of section .debug_aranges:\n");
5305
5306         s = NULL;
5307         for (i = 0; (size_t) i < re->shnum; i++) {
5308                 s = &re->sl[i];
5309                 if (s->name != NULL && !strcmp(s->name, ".debug_aranges"))
5310                         break;
5311         }
5312         if ((size_t) i >= re->shnum)
5313                 return;
5314
5315         (void) elf_errno();
5316         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5317                 elferr = elf_errno();
5318                 if (elferr != 0)
5319                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
5320                 return;
5321         }
5322         if (d->d_size <= 0)
5323                 return;
5324
5325         /* Read in the .debug_aranges section table header. */
5326         offset = 0;
5327         length = re->dw_read(d, &offset, 4);
5328         if (length == 0xffffffff) {
5329                 dwarf_size = 8;
5330                 length = re->dw_read(d, &offset, 8);
5331         } else
5332                 dwarf_size = 4;
5333
5334         if (length > d->d_size - offset) {
5335                 warnx("invalid .dwarf_aranges section");
5336                 return;
5337         }
5338
5339         as_version = re->dw_read(d, &offset, 2);
5340         as_cu_offset = re->dw_read(d, &offset, dwarf_size);
5341         as_addrsz = re->dw_read(d, &offset, 1);
5342         as_segsz = re->dw_read(d, &offset, 1);
5343
5344         printf("  Length:\t\t\t%ju\n", (uintmax_t) length);
5345         printf("  Version:\t\t\t%u\n", as_version);
5346         printf("  Offset into .debug_info:\t%ju\n", (uintmax_t) as_cu_offset);
5347         printf("  Pointer Size:\t\t\t%u\n", as_addrsz);
5348         printf("  Segment Size:\t\t\t%u\n", as_segsz);
5349
5350         if (dwarf_get_aranges(re->dbg, &aranges, &cnt, &de) != DW_DLV_OK) {
5351                 warnx("dwarf_get_aranges failed: %s", dwarf_errmsg(de));
5352                 return;
5353         }
5354
5355         printf("\n    Address  Length\n");
5356         for (i = 0; i < cnt; i++) {
5357                 if (dwarf_get_arange_info(aranges[i], &start, &length,
5358                     &die_off, &de) != DW_DLV_OK) {
5359                         warnx("dwarf_get_arange_info failed: %s",
5360                             dwarf_errmsg(de));
5361                         continue;
5362                 }
5363                 printf("    %08jx %ju\n", (uintmax_t) start,
5364                     (uintmax_t) length);
5365         }
5366 }
5367
5368 static void
5369 dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die, Dwarf_Addr base)
5370 {
5371         Dwarf_Attribute *attr_list;
5372         Dwarf_Ranges *ranges;
5373         Dwarf_Die ret_die;
5374         Dwarf_Error de;
5375         Dwarf_Addr base0;
5376         Dwarf_Half attr;
5377         Dwarf_Signed attr_count, cnt;
5378         Dwarf_Unsigned off, bytecnt;
5379         int i, j, ret;
5380
5381         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5382             DW_DLV_OK) {
5383                 if (ret == DW_DLV_ERROR)
5384                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5385                 goto cont_search;
5386         }
5387
5388         for (i = 0; i < attr_count; i++) {
5389                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5390                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5391                         continue;
5392                 }
5393                 if (attr != DW_AT_ranges)
5394                         continue;
5395                 if (dwarf_formudata(attr_list[i], &off, &de) != DW_DLV_OK) {
5396                         warnx("dwarf_formudata failed: %s", dwarf_errmsg(de));
5397                         continue;
5398                 }
5399                 if (dwarf_get_ranges(re->dbg, (Dwarf_Off) off, &ranges, &cnt,
5400                     &bytecnt, &de) != DW_DLV_OK)
5401                         continue;
5402                 base0 = base;
5403                 for (j = 0; j < cnt; j++) {
5404                         printf("    %08jx ", (uintmax_t) off);
5405                         if (ranges[j].dwr_type == DW_RANGES_END) {
5406                                 printf("%s\n", "<End of list>");
5407                                 continue;
5408                         } else if (ranges[j].dwr_type ==
5409                             DW_RANGES_ADDRESS_SELECTION) {
5410                                 base0 = ranges[j].dwr_addr2;
5411                                 continue;
5412                         }
5413                         if (re->ec == ELFCLASS32)
5414                                 printf("%08jx %08jx\n",
5415                                     (uintmax_t) (ranges[j].dwr_addr1 + base0),
5416                                     (uintmax_t) (ranges[j].dwr_addr2 + base0));
5417                         else
5418                                 printf("%016jx %016jx\n",
5419                                     (uintmax_t) (ranges[j].dwr_addr1 + base0),
5420                                     (uintmax_t) (ranges[j].dwr_addr2 + base0));
5421                 }
5422         }
5423
5424 cont_search:
5425         /* Search children. */
5426         ret = dwarf_child(die, &ret_die, &de);
5427         if (ret == DW_DLV_ERROR)
5428                 warnx("dwarf_child: %s", dwarf_errmsg(de));
5429         else if (ret == DW_DLV_OK)
5430                 dump_dwarf_ranges_foreach(re, ret_die, base);
5431
5432         /* Search sibling. */
5433         ret = dwarf_siblingof(re->dbg, die, &ret_die, &de);
5434         if (ret == DW_DLV_ERROR)
5435                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5436         else if (ret == DW_DLV_OK)
5437                 dump_dwarf_ranges_foreach(re, ret_die, base);
5438 }
5439
5440 static void
5441 dump_dwarf_ranges(struct readelf *re)
5442 {
5443         Dwarf_Ranges *ranges;
5444         Dwarf_Die die;
5445         Dwarf_Signed cnt;
5446         Dwarf_Unsigned bytecnt;
5447         Dwarf_Half tag;
5448         Dwarf_Error de;
5449         Dwarf_Unsigned lowpc;
5450         int ret;
5451
5452         if (dwarf_get_ranges(re->dbg, 0, &ranges, &cnt, &bytecnt, &de) !=
5453             DW_DLV_OK)
5454                 return;
5455
5456         printf("Contents of the .debug_ranges section:\n\n");
5457         if (re->ec == ELFCLASS32)
5458                 printf("    %-8s %-8s %s\n", "Offset", "Begin", "End");
5459         else
5460                 printf("    %-8s %-16s %s\n", "Offset", "Begin", "End");
5461
5462         while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
5463             NULL, &de)) == DW_DLV_OK) {
5464                 die = NULL;
5465                 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
5466                         continue;
5467                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5468                         warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5469                         continue;
5470                 }
5471                 /* XXX: What about DW_TAG_partial_unit? */
5472                 lowpc = 0;
5473                 if (tag == DW_TAG_compile_unit) {
5474                         if (dwarf_attrval_unsigned(die, DW_AT_low_pc, &lowpc,
5475                             &de) != DW_DLV_OK)
5476                                 lowpc = 0;
5477                 }
5478
5479                 dump_dwarf_ranges_foreach(re, die, (Dwarf_Addr) lowpc);
5480         }
5481         putchar('\n');
5482 }
5483
5484 static void
5485 dump_dwarf_macinfo(struct readelf *re)
5486 {
5487         Dwarf_Unsigned offset;
5488         Dwarf_Signed cnt;
5489         Dwarf_Macro_Details *md;
5490         Dwarf_Error de;
5491         const char *mi_str;
5492         char unk_mi[32];
5493         int i;
5494
5495 #define _MAX_MACINFO_ENTRY      65535
5496
5497         printf("\nContents of section .debug_macinfo:\n\n");
5498
5499         offset = 0;
5500         while (dwarf_get_macro_details(re->dbg, offset, _MAX_MACINFO_ENTRY,
5501             &cnt, &md, &de) == DW_DLV_OK) {
5502                 for (i = 0; i < cnt; i++) {
5503                         offset = md[i].dmd_offset + 1;
5504                         if (md[i].dmd_type == 0)
5505                                 break;
5506                         if (dwarf_get_MACINFO_name(md[i].dmd_type, &mi_str) !=
5507                             DW_DLV_OK) {
5508                                 snprintf(unk_mi, sizeof(unk_mi),
5509                                     "[Unknown MACINFO: %#x]", md[i].dmd_type);
5510                                 mi_str = unk_mi;
5511                         }
5512                         printf(" %s", mi_str);
5513                         switch (md[i].dmd_type) {
5514                         case DW_MACINFO_define:
5515                         case DW_MACINFO_undef:
5516                                 printf(" - lineno : %jd macro : %s\n",
5517                                     (intmax_t) md[i].dmd_lineno,
5518                                     md[i].dmd_macro);
5519                                 break;
5520                         case DW_MACINFO_start_file:
5521                                 printf(" - lineno : %jd filenum : %jd\n",
5522                                     (intmax_t) md[i].dmd_lineno,
5523                                     (intmax_t) md[i].dmd_fileindex);
5524                                 break;
5525                         default:
5526                                 putchar('\n');
5527                                 break;
5528                         }
5529                 }
5530         }
5531
5532 #undef  _MAX_MACINFO_ENTRY
5533 }
5534
5535 static void
5536 dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie, uint8_t *insts,
5537     Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf, Dwarf_Addr pc,
5538     Dwarf_Debug dbg)
5539 {
5540         Dwarf_Frame_Op *oplist;
5541         Dwarf_Signed opcnt, delta;
5542         Dwarf_Small op;
5543         Dwarf_Error de;
5544         const char *op_str;
5545         char unk_op[32];
5546         int i;
5547
5548         if (dwarf_expand_frame_instructions(cie, insts, len, &oplist,
5549             &opcnt, &de) != DW_DLV_OK) {
5550                 warnx("dwarf_expand_frame_instructions failed: %s",
5551                     dwarf_errmsg(de));
5552                 return;
5553         }
5554
5555         for (i = 0; i < opcnt; i++) {
5556                 if (oplist[i].fp_base_op != 0)
5557                         op = oplist[i].fp_base_op << 6;
5558                 else
5559                         op = oplist[i].fp_extended_op;
5560                 if (dwarf_get_CFA_name(op, &op_str) != DW_DLV_OK) {
5561                         snprintf(unk_op, sizeof(unk_op), "[Unknown CFA: %#x]",
5562                             op);
5563                         op_str = unk_op;
5564                 }
5565                 printf("  %s", op_str);
5566                 switch (op) {
5567                 case DW_CFA_advance_loc:
5568                         delta = oplist[i].fp_offset * caf;
5569                         pc += delta;
5570                         printf(": %ju to %08jx", (uintmax_t) delta,
5571                             (uintmax_t) pc);
5572                         break;
5573                 case DW_CFA_offset:
5574                 case DW_CFA_offset_extended:
5575                 case DW_CFA_offset_extended_sf:
5576                         delta = oplist[i].fp_offset * daf;
5577                         printf(": r%u (%s) at cfa%+jd", oplist[i].fp_register,
5578                             dwarf_regname(re, oplist[i].fp_register),
5579                             (intmax_t) delta);
5580                         break;
5581                 case DW_CFA_restore:
5582                         printf(": r%u (%s)", oplist[i].fp_register,
5583                             dwarf_regname(re, oplist[i].fp_register));
5584                         break;
5585                 case DW_CFA_set_loc:
5586                         pc = oplist[i].fp_offset;
5587                         printf(": to %08jx", (uintmax_t) pc);
5588                         break;
5589                 case DW_CFA_advance_loc1:
5590                 case DW_CFA_advance_loc2:
5591                 case DW_CFA_advance_loc4:
5592                         pc += oplist[i].fp_offset;
5593                         printf(": %jd to %08jx", (intmax_t) oplist[i].fp_offset,
5594                             (uintmax_t) pc);
5595                         break;
5596                 case DW_CFA_def_cfa:
5597                         printf(": r%u (%s) ofs %ju", oplist[i].fp_register,
5598                             dwarf_regname(re, oplist[i].fp_register),
5599                             (uintmax_t) oplist[i].fp_offset);
5600                         break;
5601                 case DW_CFA_def_cfa_sf:
5602                         printf(": r%u (%s) ofs %jd", oplist[i].fp_register,
5603                             dwarf_regname(re, oplist[i].fp_register),
5604                             (intmax_t) (oplist[i].fp_offset * daf));
5605                         break;
5606                 case DW_CFA_def_cfa_register:
5607                         printf(": r%u (%s)", oplist[i].fp_register,
5608                             dwarf_regname(re, oplist[i].fp_register));
5609                         break;
5610                 case DW_CFA_def_cfa_offset:
5611                         printf(": %ju", (uintmax_t) oplist[i].fp_offset);
5612                         break;
5613                 case DW_CFA_def_cfa_offset_sf:
5614                         printf(": %jd", (intmax_t) (oplist[i].fp_offset * daf));
5615                         break;
5616                 default:
5617                         break;
5618                 }
5619                 putchar('\n');
5620         }
5621
5622         dwarf_dealloc(dbg, oplist, DW_DLA_FRAME_BLOCK);
5623 }
5624
5625 static char *
5626 get_regoff_str(struct readelf *re, Dwarf_Half reg, Dwarf_Addr off)
5627 {
5628         static char rs[16];
5629
5630         if (reg == DW_FRAME_UNDEFINED_VAL || reg == DW_FRAME_REG_INITIAL_VALUE)
5631                 snprintf(rs, sizeof(rs), "%c", 'u');
5632         else if (reg == DW_FRAME_CFA_COL)
5633                 snprintf(rs, sizeof(rs), "c%+jd", (intmax_t) off);
5634         else
5635                 snprintf(rs, sizeof(rs), "%s%+jd", dwarf_regname(re, reg),
5636                     (intmax_t) off);
5637
5638         return (rs);
5639 }
5640
5641 static int
5642 dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde, Dwarf_Addr pc,
5643     Dwarf_Unsigned func_len, Dwarf_Half cie_ra)
5644 {
5645         Dwarf_Regtable rt;
5646         Dwarf_Addr row_pc, end_pc, pre_pc, cur_pc;
5647         Dwarf_Error de;
5648         char *vec;
5649         int i;
5650
5651 #define BIT_SET(v, n) (v[(n)>>3] |= 1U << ((n) & 7))
5652 #define BIT_CLR(v, n) (v[(n)>>3] &= ~(1U << ((n) & 7)))
5653 #define BIT_ISSET(v, n) (v[(n)>>3] & (1U << ((n) & 7)))
5654 #define RT(x) rt.rules[(x)]
5655
5656         vec = calloc((DW_REG_TABLE_SIZE + 7) / 8, 1);
5657         if (vec == NULL)
5658                 err(EXIT_FAILURE, "calloc failed");
5659
5660         pre_pc = ~((Dwarf_Addr) 0);
5661         cur_pc = pc;
5662         end_pc = pc + func_len;
5663         for (; cur_pc < end_pc; cur_pc++) {
5664                 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5665                     &de) != DW_DLV_OK) {
5666                         warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5667                             dwarf_errmsg(de));
5668                         return (-1);
5669                 }
5670                 if (row_pc == pre_pc)
5671                         continue;
5672                 pre_pc = row_pc;
5673                 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5674                         if (rt.rules[i].dw_regnum != DW_FRAME_REG_INITIAL_VALUE)
5675                                 BIT_SET(vec, i);
5676                 }
5677         }
5678
5679         printf("   LOC   CFA      ");
5680         for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5681                 if (BIT_ISSET(vec, i)) {
5682                         if ((Dwarf_Half) i == cie_ra)
5683                                 printf("ra   ");
5684                         else
5685                                 printf("%-5s",
5686                                     dwarf_regname(re, (unsigned int) i));
5687                 }
5688         }
5689         putchar('\n');
5690
5691         pre_pc = ~((Dwarf_Addr) 0);
5692         cur_pc = pc;
5693         end_pc = pc + func_len;
5694         for (; cur_pc < end_pc; cur_pc++) {
5695                 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5696                     &de) != DW_DLV_OK) {
5697                         warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5698                             dwarf_errmsg(de));
5699                         return (-1);
5700                 }
5701                 if (row_pc == pre_pc)
5702                         continue;
5703                 pre_pc = row_pc;
5704                 printf("%08jx ", (uintmax_t) row_pc);
5705                 printf("%-8s ", get_regoff_str(re, RT(0).dw_regnum,
5706                     RT(0).dw_offset));
5707                 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
5708                         if (BIT_ISSET(vec, i)) {
5709                                 printf("%-5s", get_regoff_str(re,
5710                                     RT(i).dw_regnum, RT(i).dw_offset));
5711                         }
5712                 }
5713                 putchar('\n');
5714         }
5715
5716         free(vec);
5717
5718         return (0);
5719
5720 #undef  BIT_SET
5721 #undef  BIT_CLR
5722 #undef  BIT_ISSET
5723 #undef  RT
5724 }
5725
5726 static void
5727 dump_dwarf_frame_section(struct readelf *re, struct section *s, int alt)
5728 {
5729         Dwarf_Cie *cie_list, cie, pre_cie;
5730         Dwarf_Fde *fde_list, fde;
5731         Dwarf_Off cie_offset, fde_offset;
5732         Dwarf_Unsigned cie_length, fde_instlen;
5733         Dwarf_Unsigned cie_caf, cie_daf, cie_instlen, func_len, fde_length;
5734         Dwarf_Signed cie_count, fde_count, cie_index;
5735         Dwarf_Addr low_pc;
5736         Dwarf_Half cie_ra;
5737         Dwarf_Small cie_version;
5738         Dwarf_Ptr fde_addr, fde_inst, cie_inst;
5739         char *cie_aug, c;
5740         int i, eh_frame;
5741         Dwarf_Error de;
5742
5743         printf("\nThe section %s contains:\n\n", s->name);
5744
5745         if (!strcmp(s->name, ".debug_frame")) {
5746                 eh_frame = 0;
5747                 if (dwarf_get_fde_list(re->dbg, &cie_list, &cie_count,
5748                     &fde_list, &fde_count, &de) != DW_DLV_OK) {
5749                         warnx("dwarf_get_fde_list failed: %s",
5750                             dwarf_errmsg(de));
5751                         return;
5752                 }
5753         } else if (!strcmp(s->name, ".eh_frame")) {
5754                 eh_frame = 1;
5755                 if (dwarf_get_fde_list_eh(re->dbg, &cie_list, &cie_count,
5756                     &fde_list, &fde_count, &de) != DW_DLV_OK) {
5757                         warnx("dwarf_get_fde_list_eh failed: %s",
5758                             dwarf_errmsg(de));
5759                         return;
5760                 }
5761         } else
5762                 return;
5763
5764         pre_cie = NULL;
5765         for (i = 0; i < fde_count; i++) {
5766                 if (dwarf_get_fde_n(fde_list, i, &fde, &de) != DW_DLV_OK) {
5767                         warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
5768                         continue;
5769                 }
5770                 if (dwarf_get_cie_of_fde(fde, &cie, &de) != DW_DLV_OK) {
5771                         warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
5772                         continue;
5773                 }
5774                 if (dwarf_get_fde_range(fde, &low_pc, &func_len, &fde_addr,
5775                     &fde_length, &cie_offset, &cie_index, &fde_offset,
5776                     &de) != DW_DLV_OK) {
5777                         warnx("dwarf_get_fde_range failed: %s",
5778                             dwarf_errmsg(de));
5779                         continue;
5780                 }
5781                 if (dwarf_get_fde_instr_bytes(fde, &fde_inst, &fde_instlen,
5782                     &de) != DW_DLV_OK) {
5783                         warnx("dwarf_get_fde_instr_bytes failed: %s",
5784                             dwarf_errmsg(de));
5785                         continue;
5786                 }
5787                 if (pre_cie == NULL || cie != pre_cie) {
5788                         pre_cie = cie;
5789                         if (dwarf_get_cie_info(cie, &cie_length, &cie_version,
5790                             &cie_aug, &cie_caf, &cie_daf, &cie_ra,
5791                             &cie_inst, &cie_instlen, &de) != DW_DLV_OK) {
5792                                 warnx("dwarf_get_cie_info failed: %s",
5793                                     dwarf_errmsg(de));
5794                                 continue;
5795                         }
5796                         printf("%08jx %08jx %8.8jx CIE",
5797                             (uintmax_t) cie_offset,
5798                             (uintmax_t) cie_length,
5799                             (uintmax_t) (eh_frame ? 0 : ~0U));
5800                         if (!alt) {
5801                                 putchar('\n');
5802                                 printf("  Version:\t\t\t%u\n", cie_version);
5803                                 printf("  Augmentation:\t\t\t\"");
5804                                 while ((c = *cie_aug++) != '\0')
5805                                         putchar(c);
5806                                 printf("\"\n");
5807                                 printf("  Code alignment factor:\t%ju\n",
5808                                     (uintmax_t) cie_caf);
5809                                 printf("  Data alignment factor:\t%jd\n",
5810                                     (intmax_t) cie_daf);
5811                                 printf("  Return address column:\t%ju\n",
5812                                     (uintmax_t) cie_ra);
5813                                 putchar('\n');
5814                                 dump_dwarf_frame_inst(re, cie, cie_inst,
5815                                     cie_instlen, cie_caf, cie_daf, 0,
5816                                     re->dbg);
5817                                 putchar('\n');
5818                         } else {
5819                                 printf(" \"");
5820                                 while ((c = *cie_aug++) != '\0')
5821                                         putchar(c);
5822                                 putchar('"');
5823                                 printf(" cf=%ju df=%jd ra=%ju\n",
5824                                     (uintmax_t) cie_caf,
5825                                     (uintmax_t) cie_daf,
5826                                     (uintmax_t) cie_ra);
5827                                 dump_dwarf_frame_regtable(re, fde, low_pc, 1,
5828                                     cie_ra);
5829                                 putchar('\n');
5830                         }
5831                 }
5832                 printf("%08jx %08jx %08jx FDE cie=%08jx pc=%08jx..%08jx\n",
5833                     (uintmax_t) fde_offset, (uintmax_t) fde_length,
5834                     (uintmax_t) cie_offset,
5835                     (uintmax_t) (eh_frame ? fde_offset + 4 - cie_offset :
5836                         cie_offset),
5837                     (uintmax_t) low_pc, (uintmax_t) (low_pc + func_len));
5838                 if (!alt)
5839                         dump_dwarf_frame_inst(re, cie, fde_inst, fde_instlen,
5840                             cie_caf, cie_daf, low_pc, re->dbg);
5841                 else
5842                         dump_dwarf_frame_regtable(re, fde, low_pc, func_len,
5843                             cie_ra);
5844                 putchar('\n');
5845         }
5846 }
5847
5848 static void
5849 dump_dwarf_frame(struct readelf *re, int alt)
5850 {
5851         struct section *s;
5852         int i;
5853
5854         (void) dwarf_set_frame_cfa_value(re->dbg, DW_FRAME_CFA_COL);
5855
5856         for (i = 0; (size_t) i < re->shnum; i++) {
5857                 s = &re->sl[i];
5858                 if (s->name != NULL && (!strcmp(s->name, ".debug_frame") ||
5859                     !strcmp(s->name, ".eh_frame")))
5860                         dump_dwarf_frame_section(re, s, alt);
5861         }
5862 }
5863
5864 static void
5865 dump_dwarf_str(struct readelf *re)
5866 {
5867         struct section *s;
5868         Elf_Data *d;
5869         unsigned char *p;
5870         int elferr, end, i, j;
5871
5872         printf("\nContents of section .debug_str:\n");
5873
5874         s = NULL;
5875         for (i = 0; (size_t) i < re->shnum; i++) {
5876                 s = &re->sl[i];
5877                 if (s->name != NULL && !strcmp(s->name, ".debug_str"))
5878                         break;
5879         }
5880         if ((size_t) i >= re->shnum)
5881                 return;
5882
5883         (void) elf_errno();
5884         if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5885                 elferr = elf_errno();
5886                 if (elferr != 0)
5887                         warnx("elf_getdata failed: %s", elf_errmsg(-1));
5888                 return;
5889         }
5890         if (d->d_size <= 0)
5891                 return;
5892
5893         for (i = 0, p = d->d_buf; (size_t) i < d->d_size; i += 16) {
5894                 printf("  0x%08x", (unsigned int) i);
5895                 if ((size_t) i + 16 > d->d_size)
5896                         end = d->d_size;
5897                 else
5898                         end = i + 16;
5899                 for (j = i; j < i + 16; j++) {
5900                         if ((j - i) % 4 == 0)
5901                                 putchar(' ');
5902                         if (j >= end) {
5903                                 printf("  ");
5904                                 continue;
5905                         }
5906                         printf("%02x", (uint8_t) p[j]);
5907                 }
5908                 putchar(' ');
5909                 for (j = i; j < end; j++) {
5910                         if (isprint(p[j]))
5911                                 putchar(p[j]);
5912                         else if (p[j] == 0)
5913                                 putchar('.');
5914                         else
5915                                 putchar(' ');
5916                 }
5917                 putchar('\n');
5918         }
5919 }
5920
5921 struct loc_at {
5922         Dwarf_Attribute la_at;
5923         Dwarf_Unsigned la_off;
5924         Dwarf_Unsigned la_lowpc;
5925         Dwarf_Half la_cu_psize;
5926         Dwarf_Half la_cu_osize;
5927         Dwarf_Half la_cu_ver;
5928         TAILQ_ENTRY(loc_at) la_next;
5929 };
5930
5931 static TAILQ_HEAD(, loc_at) lalist = TAILQ_HEAD_INITIALIZER(lalist);
5932
5933 static void
5934 search_loclist_at(struct readelf *re, Dwarf_Die die, Dwarf_Unsigned lowpc)
5935 {
5936         Dwarf_Attribute *attr_list;
5937         Dwarf_Die ret_die;
5938         Dwarf_Unsigned off;
5939         Dwarf_Off ref;
5940         Dwarf_Signed attr_count;
5941         Dwarf_Half attr, form;
5942         Dwarf_Bool is_info;
5943         Dwarf_Error de;
5944         struct loc_at *la, *nla;
5945         int i, ret;
5946
5947         is_info = dwarf_get_die_infotypes_flag(die);
5948
5949         if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5950             DW_DLV_OK) {
5951                 if (ret == DW_DLV_ERROR)
5952                         warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5953                 goto cont_search;
5954         }
5955         for (i = 0; i < attr_count; i++) {
5956                 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5957                         warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5958                         continue;
5959                 }
5960                 if (attr != DW_AT_location &&
5961                     attr != DW_AT_string_length &&
5962                     attr != DW_AT_return_addr &&
5963                     attr != DW_AT_data_member_location &&
5964                     attr != DW_AT_frame_base &&
5965                     attr != DW_AT_segment &&
5966                     attr != DW_AT_static_link &&
5967                     attr != DW_AT_use_location &&
5968                     attr != DW_AT_vtable_elem_location)
5969                         continue;
5970                 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
5971                         warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
5972                         continue;
5973                 }
5974                 if (form == DW_FORM_data4 || form == DW_FORM_data8) {
5975                         if (dwarf_formudata(attr_list[i], &off, &de) !=
5976                             DW_DLV_OK) {
5977                                 warnx("dwarf_formudata failed: %s",
5978                                     dwarf_errmsg(de));
5979                                 continue;
5980                         }
5981                 } else if (form == DW_FORM_sec_offset) {
5982                         if (dwarf_global_formref(attr_list[i], &ref, &de) !=
5983                             DW_DLV_OK) {
5984                                 warnx("dwarf_global_formref failed: %s",
5985                                     dwarf_errmsg(de));
5986                                 continue;
5987                         }
5988                         off = ref;
5989                 } else
5990                         continue;
5991
5992                 TAILQ_FOREACH(la, &lalist, la_next) {
5993                         if (off == la->la_off)
5994                                 break;
5995                         if (off < la->la_off) {
5996                                 if ((nla = malloc(sizeof(*nla))) == NULL)
5997                                         err(EXIT_FAILURE, "malloc failed");
5998                                 nla->la_at = attr_list[i];
5999                                 nla->la_off = off;
6000                                 nla->la_lowpc = lowpc;
6001                                 nla->la_cu_psize = re->cu_psize;
6002                                 nla->la_cu_osize = re->cu_osize;
6003                                 nla->la_cu_ver = re->cu_ver;
6004                                 TAILQ_INSERT_BEFORE(la, nla, la_next);
6005                                 break;
6006                         }
6007                 }
6008                 if (la == NULL) {
6009                         if ((nla = malloc(sizeof(*nla))) == NULL)
6010                                 err(EXIT_FAILURE, "malloc failed");
6011                         nla->la_at = attr_list[i];
6012                         nla->la_off = off;
6013                         nla->la_lowpc = lowpc;
6014                         nla->la_cu_psize = re->cu_psize;
6015                         nla->la_cu_osize = re->cu_osize;
6016                         nla->la_cu_ver = re->cu_ver;
6017                         TAILQ_INSERT_TAIL(&lalist, nla, la_next);
6018                 }
6019         }
6020
6021 cont_search:
6022         /* Search children. */
6023         ret = dwarf_child(die, &ret_die, &de);
6024         if (ret == DW_DLV_ERROR)
6025                 warnx("dwarf_child: %s", dwarf_errmsg(de));
6026         else if (ret == DW_DLV_OK)
6027                 search_loclist_at(re, ret_die, lowpc);
6028
6029         /* Search sibling. */
6030         ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
6031         if (ret == DW_DLV_ERROR)
6032                 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
6033         else if (ret == DW_DLV_OK)
6034                 search_loclist_at(re, ret_die, lowpc);
6035 }
6036
6037 static void
6038 dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr)
6039 {
6040         const char *op_str;
6041         char unk_op[32];
6042         uint8_t *b, n;
6043         int i;
6044
6045         if (dwarf_get_OP_name(lr->lr_atom, &op_str) !=
6046             DW_DLV_OK) {
6047                 snprintf(unk_op, sizeof(unk_op),
6048                     "[Unknown OP: %#x]", lr->lr_atom);
6049                 op_str = unk_op;
6050         }
6051
6052         printf("%s", op_str);
6053
6054         switch (lr->lr_atom) {
6055         case DW_OP_reg0:
6056         case DW_OP_reg1:
6057         case DW_OP_reg2:
6058         case DW_OP_reg3:
6059         case DW_OP_reg4:
6060         case DW_OP_reg5:
6061         case DW_OP_reg6:
6062         case DW_OP_reg7:
6063         case DW_OP_reg8:
6064         case DW_OP_reg9:
6065         case DW_OP_reg10:
6066         case DW_OP_reg11:
6067         case DW_OP_reg12:
6068         case DW_OP_reg13:
6069         case DW_OP_reg14:
6070         case DW_OP_reg15:
6071         case DW_OP_reg16:
6072         case DW_OP_reg17:
6073         case DW_OP_reg18:
6074         case DW_OP_reg19:
6075         case DW_OP_reg20:
6076         case DW_OP_reg21:
6077         case DW_OP_reg22:
6078         case DW_OP_reg23:
6079         case DW_OP_reg24:
6080         case DW_OP_reg25:
6081         case DW_OP_reg26:
6082         case DW_OP_reg27:
6083         case DW_OP_reg28:
6084         case DW_OP_reg29:
6085         case DW_OP_reg30:
6086         case DW_OP_reg31:
6087                 printf(" (%s)", dwarf_regname(re, lr->lr_atom - DW_OP_reg0));
6088                 break;
6089
6090         case DW_OP_deref:
6091         case DW_OP_lit0:
6092         case DW_OP_lit1:
6093         case DW_OP_lit2:
6094         case DW_OP_lit3:
6095         case DW_OP_lit4:
6096         case DW_OP_lit5:
6097         case DW_OP_lit6:
6098         case DW_OP_lit7:
6099         case DW_OP_lit8:
6100         case DW_OP_lit9:
6101         case DW_OP_lit10:
6102         case DW_OP_lit11:
6103         case DW_OP_lit12:
6104         case DW_OP_lit13:
6105         case DW_OP_lit14:
6106         case DW_OP_lit15:
6107         case DW_OP_lit16:
6108         case DW_OP_lit17:
6109         case DW_OP_lit18:
6110         case DW_OP_lit19:
6111         case DW_OP_lit20:
6112         case DW_OP_lit21:
6113         case DW_OP_lit22:
6114         case DW_OP_lit23:
6115         case DW_OP_lit24:
6116         case DW_OP_lit25:
6117         case DW_OP_lit26:
6118         case DW_OP_lit27:
6119         case DW_OP_lit28:
6120         case DW_OP_lit29:
6121         case DW_OP_lit30:
6122         case DW_OP_lit31:
6123         case DW_OP_dup:
6124         case DW_OP_drop:
6125         case DW_OP_over:
6126         case DW_OP_swap:
6127         case DW_OP_rot:
6128         case DW_OP_xderef:
6129         case DW_OP_abs:
6130         case DW_OP_and:
6131         case DW_OP_div:
6132         case DW_OP_minus:
6133         case DW_OP_mod:
6134         case DW_OP_mul:
6135         case DW_OP_neg:
6136         case DW_OP_not:
6137         case DW_OP_or:
6138         case DW_OP_plus:
6139         case DW_OP_shl:
6140         case DW_OP_shr:
6141         case DW_OP_shra:
6142         case DW_OP_xor:
6143         case DW_OP_eq:
6144         case DW_OP_ge:
6145         case DW_OP_gt:
6146         case DW_OP_le:
6147         case DW_OP_lt:
6148         case DW_OP_ne:
6149         case DW_OP_nop:
6150         case DW_OP_push_object_address:
6151         case DW_OP_form_tls_address:
6152         case DW_OP_call_frame_cfa:
6153         case DW_OP_stack_value:
6154         case DW_OP_GNU_push_tls_address:
6155         case DW_OP_GNU_uninit:
6156                 break;
6157
6158         case DW_OP_const1u:
6159         case DW_OP_pick:
6160         case DW_OP_deref_size:
6161         case DW_OP_xderef_size:
6162         case DW_OP_const2u:
6163         case DW_OP_bra:
6164         case DW_OP_skip:
6165         case DW_OP_const4u:
6166         case DW_OP_const8u:
6167         case DW_OP_constu:
6168         case DW_OP_plus_uconst:
6169         case DW_OP_regx:
6170         case DW_OP_piece:
6171                 printf(": %ju", (uintmax_t)
6172                     lr->lr_number);
6173                 break;
6174
6175         case DW_OP_const1s:
6176         case DW_OP_const2s:
6177         case DW_OP_const4s:
6178         case DW_OP_const8s:
6179         case DW_OP_consts:
6180                 printf(": %jd", (intmax_t)
6181                     lr->lr_number);
6182                 break;
6183
6184         case DW_OP_breg0:
6185         case DW_OP_breg1:
6186         case DW_OP_breg2:
6187         case DW_OP_breg3:
6188         case DW_OP_breg4:
6189         case DW_OP_breg5:
6190         case DW_OP_breg6:
6191         case DW_OP_breg7:
6192         case DW_OP_breg8:
6193         case DW_OP_breg9:
6194         case DW_OP_breg10:
6195         case DW_OP_breg11:
6196         case DW_OP_breg12:
6197         case DW_OP_breg13:
6198         case DW_OP_breg14:
6199         case DW_OP_breg15:
6200         case DW_OP_breg16:
6201         case DW_OP_breg17:
6202         case DW_OP_breg18:
6203         case DW_OP_breg19:
6204         case DW_OP_breg20:
6205         case DW_OP_breg21:
6206         case DW_OP_breg22:
6207         case DW_OP_breg23:
6208         case DW_OP_breg24:
6209         case DW_OP_breg25:
6210         case DW_OP_breg26:
6211         case DW_OP_breg27:
6212         case DW_OP_breg28:
6213         case DW_OP_breg29:
6214         case DW_OP_breg30:
6215         case DW_OP_breg31:
6216                 printf(" (%s): %jd",
6217                     dwarf_regname(re, lr->lr_atom - DW_OP_breg0),
6218                     (intmax_t) lr->lr_number);
6219                 break;
6220
6221         case DW_OP_fbreg:
6222                 printf(": %jd", (intmax_t)
6223                     lr->lr_number);
6224                 break;
6225
6226         case DW_OP_bregx:
6227                 printf(": %ju (%s) %jd",
6228                     (uintmax_t) lr->lr_number,
6229                     dwarf_regname(re, (unsigned int) lr->lr_number),
6230                     (intmax_t) lr->lr_number2);
6231                 break;
6232
6233         case DW_OP_addr:
6234         case DW_OP_GNU_encoded_addr:
6235                 printf(": %#jx", (uintmax_t)
6236                     lr->lr_number);
6237                 break;
6238
6239         case DW_OP_GNU_implicit_pointer:
6240                 printf(": <0x%jx> %jd", (uintmax_t) lr->lr_number,
6241                     (intmax_t) lr->lr_number2);
6242                 break;
6243
6244         case DW_OP_implicit_value:
6245                 printf(": %ju byte block:", (uintmax_t) lr->lr_number);
6246                 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6247                 for (i = 0; (Dwarf_Unsigned) i < lr->lr_number; i++)
6248                         printf(" %x", b[i]);
6249                 break;
6250
6251         case DW_OP_GNU_entry_value:
6252                 printf(": (");
6253                 dump_dwarf_block(re, (uint8_t *)(uintptr_t) lr->lr_number2,
6254                     lr->lr_number);
6255                 putchar(')');
6256                 break;
6257
6258         case DW_OP_GNU_const_type:
6259                 printf(": <0x%jx> ", (uintmax_t) lr->lr_number);
6260                 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6261                 n = *b;
6262                 for (i = 1; (uint8_t) i < n; i++)
6263                         printf(" %x", b[i]);
6264                 break;
6265
6266         case DW_OP_GNU_regval_type:
6267                 printf(": %ju (%s) <0x%jx>", (uintmax_t) lr->lr_number,
6268                     dwarf_regname(re, (unsigned int) lr->lr_number),
6269                     (uintmax_t) lr->lr_number2);
6270                 break;
6271
6272         case DW_OP_GNU_convert:
6273         case DW_OP_GNU_deref_type:
6274         case DW_OP_GNU_parameter_ref:
6275         case DW_OP_GNU_reinterpret:
6276                 printf(": <0x%jx>", (uintmax_t) lr->lr_number);
6277                 break;
6278
6279         default:
6280                 break;
6281         }
6282 }
6283
6284 static void
6285 dump_dwarf_block(struct readelf *re, uint8_t *b, Dwarf_Unsigned len)
6286 {
6287         Dwarf_Locdesc *llbuf;
6288         Dwarf_Signed lcnt;
6289         Dwarf_Error de;
6290         int i;
6291
6292         if (dwarf_loclist_from_expr_b(re->dbg, b, len, re->cu_psize,
6293             re->cu_osize, re->cu_ver, &llbuf, &lcnt, &de) != DW_DLV_OK) {
6294                 warnx("dwarf_loclist_form_expr_b: %s", dwarf_errmsg(de));
6295                 return;
6296         }
6297
6298         for (i = 0; (Dwarf_Half) i < llbuf->ld_cents; i++) {
6299                 dump_dwarf_loc(re, &llbuf->ld_s[i]);
6300                 if (i < llbuf->ld_cents - 1)
6301                         printf("; ");
6302         }
6303
6304         dwarf_dealloc(re->dbg, llbuf->ld_s, DW_DLA_LOC_BLOCK);
6305         dwarf_dealloc(re->dbg, llbuf, DW_DLA_LOCDESC);
6306 }
6307
6308 static void
6309 dump_dwarf_loclist(struct readelf *re)
6310 {
6311         Dwarf_Die die;
6312         Dwarf_Locdesc **llbuf;
6313         Dwarf_Unsigned lowpc;
6314         Dwarf_Signed lcnt;
6315         Dwarf_Half tag, version, pointer_size, off_size;
6316         Dwarf_Error de;
6317         struct loc_at *la;
6318         int i, j, ret, has_content;
6319
6320         /* Search .debug_info section. */
6321         while ((ret = dwarf_next_cu_header_b(re->dbg, NULL, &version, NULL,
6322             &pointer_size, &off_size, NULL, NULL, &de)) == DW_DLV_OK) {
6323                 set_cu_context(re, pointer_size, off_size, version);
6324                 die = NULL;
6325                 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
6326                         continue;
6327                 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6328                         warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
6329                         continue;
6330                 }
6331                 /* XXX: What about DW_TAG_partial_unit? */
6332                 lowpc = 0;
6333                 if (tag == DW_TAG_compile_unit) {
6334                         if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6335                             &lowpc, &de) != DW_DLV_OK)
6336                                 lowpc = 0;
6337                 }
6338
6339                 /* Search attributes for reference to .debug_loc section. */
6340                 search_loclist_at(re, die, lowpc);
6341         }
6342         if (ret == DW_DLV_ERROR)
6343                 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6344
6345         /* Search .debug_types section. */
6346         do {
6347                 while ((ret = dwarf_next_cu_header_c(re->dbg, 0, NULL,
6348                     &version, NULL, &pointer_size, &off_size, NULL, NULL,
6349                     NULL, NULL, &de)) == DW_DLV_OK) {
6350                         set_cu_context(re, pointer_size, off_size, version);
6351                         die = NULL;
6352                         if (dwarf_siblingof(re->dbg, die, &die, &de) !=
6353                             DW_DLV_OK)
6354                                 continue;
6355                         if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6356                                 warnx("dwarf_tag failed: %s",
6357                                     dwarf_errmsg(de));
6358                                 continue;
6359                         }
6360
6361                         lowpc = 0;
6362                         if (tag == DW_TAG_type_unit) {
6363                                 if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6364                                     &lowpc, &de) != DW_DLV_OK)
6365                                         lowpc = 0;
6366                         }
6367
6368                         /*
6369                          * Search attributes for reference to .debug_loc
6370                          * section.
6371                          */
6372                         search_loclist_at(re, die, lowpc);
6373                 }
6374                 if (ret == DW_DLV_ERROR)
6375                         warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6376         } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
6377
6378         if (TAILQ_EMPTY(&lalist))
6379                 return;
6380
6381         has_content = 0;
6382         TAILQ_FOREACH(la, &lalist, la_next) {
6383                 if ((ret = dwarf_loclist_n(la->la_at, &llbuf, &lcnt, &de)) !=
6384                     DW_DLV_OK) {
6385                         if (ret != DW_DLV_NO_ENTRY)
6386                                 warnx("dwarf_loclist_n failed: %s",
6387                                     dwarf_errmsg(de));
6388                         continue;
6389                 }
6390                 if (!has_content) {
6391                         has_content = 1;
6392                         printf("\nContents of section .debug_loc:\n");
6393                         printf("    Offset   Begin    End      Expression\n");
6394                 }
6395                 set_cu_context(re, la->la_cu_psize, la->la_cu_osize,
6396                     la->la_cu_ver);
6397                 for (i = 0; i < lcnt; i++) {
6398                         printf("    %8.8jx ", (uintmax_t) la->la_off);
6399                         if (llbuf[i]->ld_lopc == 0 && llbuf[i]->ld_hipc == 0) {
6400                                 printf("<End of list>\n");
6401                                 continue;
6402                         }
6403
6404                         /* TODO: handle base selection entry. */
6405
6406                         printf("%8.8jx %8.8jx ",
6407                             (uintmax_t) (la->la_lowpc + llbuf[i]->ld_lopc),
6408                             (uintmax_t) (la->la_lowpc + llbuf[i]->ld_hipc));
6409
6410                         putchar('(');
6411                         for (j = 0; (Dwarf_Half) j < llbuf[i]->ld_cents; j++) {
6412                                 dump_dwarf_loc(re, &llbuf[i]->ld_s[j]);
6413                                 if (j < llbuf[i]->ld_cents - 1)
6414                                         printf("; ");
6415                         }
6416                         putchar(')');
6417
6418                         if (llbuf[i]->ld_lopc == llbuf[i]->ld_hipc)
6419                                 printf(" (start == end)");
6420                         putchar('\n');
6421                 }
6422                 for (i = 0; i < lcnt; i++) {
6423                         dwarf_dealloc(re->dbg, llbuf[i]->ld_s,
6424                             DW_DLA_LOC_BLOCK);
6425                         dwarf_dealloc(re->dbg, llbuf[i], DW_DLA_LOCDESC);
6426                 }
6427                 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LIST);
6428         }
6429
6430         if (!has_content)
6431                 printf("\nSection '.debug_loc' has no debugging data.\n");
6432 }
6433
6434 /*
6435  * Retrieve a string using string table section index and the string offset.
6436  */
6437 static const char*
6438 get_string(struct readelf *re, int strtab, size_t off)
6439 {
6440         const char *name;
6441
6442         if ((name = elf_strptr(re->elf, strtab, off)) == NULL)
6443                 return ("");
6444
6445         return (name);
6446 }
6447
6448 /*
6449  * Retrieve the name of a symbol using the section index of the symbol
6450  * table and the index of the symbol within that table.
6451  */
6452 static const char *
6453 get_symbol_name(struct readelf *re, int symtab, int i)
6454 {
6455         struct section  *s;
6456         const char      *name;
6457         GElf_Sym         sym;
6458         Elf_Data        *data;
6459         int              elferr;
6460
6461         s = &re->sl[symtab];
6462         if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6463                 return ("");
6464         (void) elf_errno();
6465         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6466                 elferr = elf_errno();
6467                 if (elferr != 0)
6468                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6469                 return ("");
6470         }
6471         if (gelf_getsym(data, i, &sym) != &sym)
6472                 return ("");
6473         /* Return section name for STT_SECTION symbol. */
6474         if (GELF_ST_TYPE(sym.st_info) == STT_SECTION) {
6475                 if (sym.st_shndx < re->shnum &&
6476                     re->sl[sym.st_shndx].name != NULL)
6477                         return (re->sl[sym.st_shndx].name);
6478                 return ("");
6479         }
6480         if (s->link >= re->shnum ||
6481             (name = elf_strptr(re->elf, s->link, sym.st_name)) == NULL)
6482                 return ("");
6483
6484         return (name);
6485 }
6486
6487 static uint64_t
6488 get_symbol_value(struct readelf *re, int symtab, int i)
6489 {
6490         struct section  *s;
6491         GElf_Sym         sym;
6492         Elf_Data        *data;
6493         int              elferr;
6494
6495         s = &re->sl[symtab];
6496         if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6497                 return (0);
6498         (void) elf_errno();
6499         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6500                 elferr = elf_errno();
6501                 if (elferr != 0)
6502                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6503                 return (0);
6504         }
6505         if (gelf_getsym(data, i, &sym) != &sym)
6506                 return (0);
6507
6508         return (sym.st_value);
6509 }
6510
6511 static void
6512 hex_dump(struct readelf *re)
6513 {
6514         struct section *s;
6515         Elf_Data *d;
6516         uint8_t *buf;
6517         size_t sz, nbytes;
6518         uint64_t addr;
6519         int elferr, i, j;
6520
6521         for (i = 1; (size_t) i < re->shnum; i++) {
6522                 s = &re->sl[i];
6523                 if (find_dumpop(re, (size_t) i, s->name, HEX_DUMP, -1) == NULL)
6524                         continue;
6525                 (void) elf_errno();
6526                 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6527                     (d = elf_rawdata(s->scn, NULL)) == NULL) {
6528                         elferr = elf_errno();
6529                         if (elferr != 0)
6530                                 warnx("elf_getdata failed: %s",
6531                                     elf_errmsg(elferr));
6532                         continue;
6533                 }
6534                 (void) elf_errno();
6535                 if (d->d_size <= 0 || d->d_buf == NULL) {
6536                         printf("\nSection '%s' has no data to dump.\n",
6537                             s->name);
6538                         continue;
6539                 }
6540                 buf = d->d_buf;
6541                 sz = d->d_size;
6542                 addr = s->addr;
6543                 printf("\nHex dump of section '%s':\n", s->name);
6544                 while (sz > 0) {
6545                         printf("  0x%8.8jx ", (uintmax_t)addr);
6546                         nbytes = sz > 16? 16 : sz;
6547                         for (j = 0; j < 16; j++) {
6548                                 if ((size_t)j < nbytes)
6549                                         printf("%2.2x", buf[j]);
6550                                 else
6551                                         printf("  ");
6552                                 if ((j & 3) == 3)
6553                                         printf(" ");
6554                         }
6555                         for (j = 0; (size_t)j < nbytes; j++) {
6556                                 if (isprint(buf[j]))
6557                                         printf("%c", buf[j]);
6558                                 else
6559                                         printf(".");
6560                         }
6561                         printf("\n");
6562                         buf += nbytes;
6563                         addr += nbytes;
6564                         sz -= nbytes;
6565                 }
6566         }
6567 }
6568
6569 static void
6570 str_dump(struct readelf *re)
6571 {
6572         struct section *s;
6573         Elf_Data *d;
6574         unsigned char *start, *end, *buf_end;
6575         unsigned int len;
6576         int i, j, elferr, found;
6577
6578         for (i = 1; (size_t) i < re->shnum; i++) {
6579                 s = &re->sl[i];
6580                 if (find_dumpop(re, (size_t) i, s->name, STR_DUMP, -1) == NULL)
6581                         continue;
6582                 (void) elf_errno();
6583                 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6584                     (d = elf_rawdata(s->scn, NULL)) == NULL) {
6585                         elferr = elf_errno();
6586                         if (elferr != 0)
6587                                 warnx("elf_getdata failed: %s",
6588                                     elf_errmsg(elferr));
6589                         continue;
6590                 }
6591                 (void) elf_errno();
6592                 if (d->d_size <= 0 || d->d_buf == NULL) {
6593                         printf("\nSection '%s' has no data to dump.\n",
6594                             s->name);
6595                         continue;
6596                 }
6597                 buf_end = (unsigned char *) d->d_buf + d->d_size;
6598                 start = (unsigned char *) d->d_buf;
6599                 found = 0;
6600                 printf("\nString dump of section '%s':\n", s->name);
6601                 for (;;) {
6602                         while (start < buf_end && !isprint(*start))
6603                                 start++;
6604                         if (start >= buf_end)
6605                                 break;
6606                         end = start + 1;
6607                         while (end < buf_end && isprint(*end))
6608                                 end++;
6609                         printf("  [%6lx]  ",
6610                             (long) (start - (unsigned char *) d->d_buf));
6611                         len = end - start;
6612                         for (j = 0; (unsigned int) j < len; j++)
6613                                 putchar(start[j]);
6614                         putchar('\n');
6615                         found = 1;
6616                         if (end >= buf_end)
6617                                 break;
6618                         start = end + 1;
6619                 }
6620                 if (!found)
6621                         printf("  No strings found in this section.");
6622                 putchar('\n');
6623         }
6624 }
6625
6626 static void
6627 load_sections(struct readelf *re)
6628 {
6629         struct section  *s;
6630         const char      *name;
6631         Elf_Scn         *scn;
6632         GElf_Shdr        sh;
6633         size_t           shstrndx, ndx;
6634         int              elferr;
6635
6636         /* Allocate storage for internal section list. */
6637         if (!elf_getshnum(re->elf, &re->shnum)) {
6638                 warnx("elf_getshnum failed: %s", elf_errmsg(-1));
6639                 return;
6640         }
6641         if (re->sl != NULL)
6642                 free(re->sl);
6643         if ((re->sl = calloc(re->shnum, sizeof(*re->sl))) == NULL)
6644                 err(EXIT_FAILURE, "calloc failed");
6645
6646         /* Get the index of .shstrtab section. */
6647         if (!elf_getshstrndx(re->elf, &shstrndx)) {
6648                 warnx("elf_getshstrndx failed: %s", elf_errmsg(-1));
6649                 return;
6650         }
6651
6652         if ((scn = elf_getscn(re->elf, 0)) == NULL)
6653                 return;
6654
6655         (void) elf_errno();
6656         do {
6657                 if (gelf_getshdr(scn, &sh) == NULL) {
6658                         warnx("gelf_getshdr failed: %s", elf_errmsg(-1));
6659                         (void) elf_errno();
6660                         continue;
6661                 }
6662                 if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) {
6663                         (void) elf_errno();
6664                         name = "<no-name>";
6665                 }
6666                 if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) {
6667                         if ((elferr = elf_errno()) != 0) {
6668                                 warnx("elf_ndxscn failed: %s",
6669                                     elf_errmsg(elferr));
6670                                 continue;
6671                         }
6672                 }
6673                 if (ndx >= re->shnum) {
6674                         warnx("section index of '%s' out of range", name);
6675                         continue;
6676                 }
6677                 if (sh.sh_link >= re->shnum)
6678                         warnx("section link %llu of '%s' out of range",
6679                             (unsigned long long)sh.sh_link, name);
6680                 s = &re->sl[ndx];
6681                 s->name = name;
6682                 s->scn = scn;
6683                 s->off = sh.sh_offset;
6684                 s->sz = sh.sh_size;
6685                 s->entsize = sh.sh_entsize;
6686                 s->align = sh.sh_addralign;
6687                 s->type = sh.sh_type;
6688                 s->flags = sh.sh_flags;
6689                 s->addr = sh.sh_addr;
6690                 s->link = sh.sh_link;
6691                 s->info = sh.sh_info;
6692         } while ((scn = elf_nextscn(re->elf, scn)) != NULL);
6693         elferr = elf_errno();
6694         if (elferr != 0)
6695                 warnx("elf_nextscn failed: %s", elf_errmsg(elferr));
6696 }
6697
6698 static void
6699 unload_sections(struct readelf *re)
6700 {
6701
6702         if (re->sl != NULL) {
6703                 free(re->sl);
6704                 re->sl = NULL;
6705         }
6706         re->shnum = 0;
6707         re->vd_s = NULL;
6708         re->vn_s = NULL;
6709         re->vs_s = NULL;
6710         re->vs = NULL;
6711         re->vs_sz = 0;
6712         if (re->ver != NULL) {
6713                 free(re->ver);
6714                 re->ver = NULL;
6715                 re->ver_sz = 0;
6716         }
6717 }
6718
6719 static void
6720 dump_elf(struct readelf *re)
6721 {
6722
6723         /* Fetch ELF header. No need to continue if it fails. */
6724         if (gelf_getehdr(re->elf, &re->ehdr) == NULL) {
6725                 warnx("gelf_getehdr failed: %s", elf_errmsg(-1));
6726                 return;
6727         }
6728         if ((re->ec = gelf_getclass(re->elf)) == ELFCLASSNONE) {
6729                 warnx("gelf_getclass failed: %s", elf_errmsg(-1));
6730                 return;
6731         }
6732         if (re->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) {
6733                 re->dw_read = _read_msb;
6734                 re->dw_decode = _decode_msb;
6735         } else {
6736                 re->dw_read = _read_lsb;
6737                 re->dw_decode = _decode_lsb;
6738         }
6739
6740         if (re->options & ~RE_H)
6741                 load_sections(re);
6742         if ((re->options & RE_VV) || (re->options & RE_S))
6743                 search_ver(re);
6744         if (re->options & RE_H)
6745                 dump_ehdr(re);
6746         if (re->options & RE_L)
6747                 dump_phdr(re);
6748         if (re->options & RE_SS)
6749                 dump_shdr(re);
6750         if (re->options & RE_G)
6751                 dump_section_groups(re);
6752         if (re->options & RE_D)
6753                 dump_dynamic(re);
6754         if (re->options & RE_R)
6755                 dump_reloc(re);
6756         if (re->options & RE_S)
6757                 dump_symtabs(re);
6758         if (re->options & RE_N)
6759                 dump_notes(re);
6760         if (re->options & RE_II)
6761                 dump_hash(re);
6762         if (re->options & RE_X)
6763                 hex_dump(re);
6764         if (re->options & RE_P)
6765                 str_dump(re);
6766         if (re->options & RE_VV)
6767                 dump_ver(re);
6768         if (re->options & RE_AA)
6769                 dump_arch_specific_info(re);
6770         if (re->options & RE_W)
6771                 dump_dwarf(re);
6772         if (re->options & ~RE_H)
6773                 unload_sections(re);
6774 }
6775
6776 static void
6777 dump_dwarf(struct readelf *re)
6778 {
6779         struct loc_at *la, *_la;
6780         Dwarf_Error de;
6781         int error;
6782
6783         if (dwarf_elf_init(re->elf, DW_DLC_READ, NULL, NULL, &re->dbg, &de)) {
6784                 if ((error = dwarf_errno(de)) != DW_DLE_DEBUG_INFO_NULL)
6785                         errx(EXIT_FAILURE, "dwarf_elf_init failed: %s",
6786                             dwarf_errmsg(de));
6787                 return;
6788         }
6789
6790         if (re->dop & DW_A)
6791                 dump_dwarf_abbrev(re);
6792         if (re->dop & DW_L)
6793                 dump_dwarf_line(re);
6794         if (re->dop & DW_LL)
6795                 dump_dwarf_line_decoded(re);
6796         if (re->dop & DW_I) {
6797                 dump_dwarf_info(re, 0);
6798                 dump_dwarf_info(re, 1);
6799         }
6800         if (re->dop & DW_P)
6801                 dump_dwarf_pubnames(re);
6802         if (re->dop & DW_R)
6803                 dump_dwarf_aranges(re);
6804         if (re->dop & DW_RR)
6805                 dump_dwarf_ranges(re);
6806         if (re->dop & DW_M)
6807                 dump_dwarf_macinfo(re);
6808         if (re->dop & DW_F)
6809                 dump_dwarf_frame(re, 0);
6810         else if (re->dop & DW_FF)
6811                 dump_dwarf_frame(re, 1);
6812         if (re->dop & DW_S)
6813                 dump_dwarf_str(re);
6814         if (re->dop & DW_O)
6815                 dump_dwarf_loclist(re);
6816
6817         TAILQ_FOREACH_SAFE(la, &lalist, la_next, _la) {
6818                 TAILQ_REMOVE(&lalist, la, la_next);
6819                 free(la);
6820         }
6821
6822         dwarf_finish(re->dbg, &de);
6823 }
6824
6825 static void
6826 dump_ar(struct readelf *re, int fd)
6827 {
6828         Elf_Arsym *arsym;
6829         Elf_Arhdr *arhdr;
6830         Elf_Cmd cmd;
6831         Elf *e;
6832         size_t sz;
6833         off_t off;
6834         int i;
6835
6836         re->ar = re->elf;
6837
6838         if (re->options & RE_C) {
6839                 if ((arsym = elf_getarsym(re->ar, &sz)) == NULL) {
6840                         warnx("elf_getarsym() failed: %s", elf_errmsg(-1));
6841                         goto process_members;
6842                 }
6843                 printf("Index of archive %s: (%ju entries)\n", re->filename,
6844                     (uintmax_t) sz - 1);
6845                 off = 0;
6846                 for (i = 0; (size_t) i < sz; i++) {
6847                         if (arsym[i].as_name == NULL)
6848                                 break;
6849                         if (arsym[i].as_off != off) {
6850                                 off = arsym[i].as_off;
6851                                 if (elf_rand(re->ar, off) != off) {
6852                                         warnx("elf_rand() failed: %s",
6853                                             elf_errmsg(-1));
6854                                         continue;
6855                                 }
6856                                 if ((e = elf_begin(fd, ELF_C_READ, re->ar)) ==
6857                                     NULL) {
6858                                         warnx("elf_begin() failed: %s",
6859                                             elf_errmsg(-1));
6860                                         continue;
6861                                 }
6862                                 if ((arhdr = elf_getarhdr(e)) == NULL) {
6863                                         warnx("elf_getarhdr() failed: %s",
6864                                             elf_errmsg(-1));
6865                                         elf_end(e);
6866                                         continue;
6867                                 }
6868                                 printf("Binary %s(%s) contains:\n",
6869                                     re->filename, arhdr->ar_name);
6870                         }
6871                         printf("\t%s\n", arsym[i].as_name);
6872                 }
6873                 if (elf_rand(re->ar, SARMAG) != SARMAG) {
6874                         warnx("elf_rand() failed: %s", elf_errmsg(-1));
6875                         return;
6876                 }
6877         }
6878
6879 process_members:
6880
6881         if ((re->options & ~RE_C) == 0)
6882                 return;
6883
6884         cmd = ELF_C_READ;
6885         while ((re->elf = elf_begin(fd, cmd, re->ar)) != NULL) {
6886                 if ((arhdr = elf_getarhdr(re->elf)) == NULL) {
6887                         warnx("elf_getarhdr() failed: %s", elf_errmsg(-1));
6888                         goto next_member;
6889                 }
6890                 if (strcmp(arhdr->ar_name, "/") == 0 ||
6891                     strcmp(arhdr->ar_name, "//") == 0 ||
6892                     strcmp(arhdr->ar_name, "__.SYMDEF") == 0)
6893                         goto next_member;
6894                 printf("\nFile: %s(%s)\n", re->filename, arhdr->ar_name);
6895                 dump_elf(re);
6896
6897         next_member:
6898                 cmd = elf_next(re->elf);
6899                 elf_end(re->elf);
6900         }
6901         re->elf = re->ar;
6902 }
6903
6904 static void
6905 dump_object(struct readelf *re)
6906 {
6907         int fd;
6908
6909         if ((fd = open(re->filename, O_RDONLY)) == -1) {
6910                 warn("open %s failed", re->filename);
6911                 return;
6912         }
6913
6914         if ((re->flags & DISPLAY_FILENAME) != 0)
6915                 printf("\nFile: %s\n", re->filename);
6916
6917         if ((re->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
6918                 warnx("elf_begin() failed: %s", elf_errmsg(-1));
6919                 return;
6920         }
6921
6922         switch (elf_kind(re->elf)) {
6923         case ELF_K_NONE:
6924                 warnx("Not an ELF file.");
6925                 return;
6926         case ELF_K_ELF:
6927                 dump_elf(re);
6928                 break;
6929         case ELF_K_AR:
6930                 dump_ar(re, fd);
6931                 break;
6932         default:
6933                 warnx("Internal: libelf returned unknown elf kind.");
6934                 return;
6935         }
6936
6937         elf_end(re->elf);
6938 }
6939
6940 static void
6941 add_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
6942 {
6943         struct dumpop *d;
6944
6945         if ((d = find_dumpop(re, si, sn, -1, t)) == NULL) {
6946                 if ((d = calloc(1, sizeof(*d))) == NULL)
6947                         err(EXIT_FAILURE, "calloc failed");
6948                 if (t == DUMP_BY_INDEX)
6949                         d->u.si = si;
6950                 else
6951                         d->u.sn = sn;
6952                 d->type = t;
6953                 d->op = op;
6954                 STAILQ_INSERT_TAIL(&re->v_dumpop, d, dumpop_list);
6955         } else
6956                 d->op |= op;
6957 }
6958
6959 static struct dumpop *
6960 find_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
6961 {
6962         struct dumpop *d;
6963
6964         STAILQ_FOREACH(d, &re->v_dumpop, dumpop_list) {
6965                 if ((op == -1 || op & d->op) &&
6966                     (t == -1 || (unsigned) t == d->type)) {
6967                         if ((d->type == DUMP_BY_INDEX && d->u.si == si) ||
6968                             (d->type == DUMP_BY_NAME && !strcmp(d->u.sn, sn)))
6969                                 return (d);
6970                 }
6971         }
6972
6973         return (NULL);
6974 }
6975
6976 static struct {
6977         const char *ln;
6978         char sn;
6979         int value;
6980 } dwarf_op[] = {
6981         {"rawline", 'l', DW_L},
6982         {"decodedline", 'L', DW_LL},
6983         {"info", 'i', DW_I},
6984         {"abbrev", 'a', DW_A},
6985         {"pubnames", 'p', DW_P},
6986         {"aranges", 'r', DW_R},
6987         {"ranges", 'r', DW_R},
6988         {"Ranges", 'R', DW_RR},
6989         {"macro", 'm', DW_M},
6990         {"frames", 'f', DW_F},
6991         {"frames-interp", 'F', DW_FF},
6992         {"str", 's', DW_S},
6993         {"loc", 'o', DW_O},
6994         {NULL, 0, 0}
6995 };
6996
6997 static void
6998 parse_dwarf_op_short(struct readelf *re, const char *op)
6999 {
7000         int i;
7001
7002         if (op == NULL) {
7003                 re->dop |= DW_DEFAULT_OPTIONS;
7004                 return;
7005         }
7006
7007         for (; *op != '\0'; op++) {
7008                 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7009                         if (dwarf_op[i].sn == *op) {
7010                                 re->dop |= dwarf_op[i].value;
7011                                 break;
7012                         }
7013                 }
7014         }
7015 }
7016
7017 static void
7018 parse_dwarf_op_long(struct readelf *re, const char *op)
7019 {
7020         char *p, *token, *bp;
7021         int i;
7022
7023         if (op == NULL) {
7024                 re->dop |= DW_DEFAULT_OPTIONS;
7025                 return;
7026         }
7027
7028         if ((p = strdup(op)) == NULL)
7029                 err(EXIT_FAILURE, "strdup failed");
7030         bp = p;
7031
7032         while ((token = strsep(&p, ",")) != NULL) {
7033                 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7034                         if (!strcmp(token, dwarf_op[i].ln)) {
7035                                 re->dop |= dwarf_op[i].value;
7036                                 break;
7037                         }
7038                 }
7039         }
7040
7041         free(bp);
7042 }
7043
7044 static uint64_t
7045 _read_lsb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7046 {
7047         uint64_t ret;
7048         uint8_t *src;
7049
7050         src = (uint8_t *) d->d_buf + *offsetp;
7051
7052         ret = 0;
7053         switch (bytes_to_read) {
7054         case 8:
7055                 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7056                 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7057                 /* FALLTHROUGH */
7058         case 4:
7059                 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7060                 /* FALLTHROUGH */
7061         case 2:
7062                 ret |= ((uint64_t) src[1]) << 8;
7063                 /* FALLTHROUGH */
7064         case 1:
7065                 ret |= src[0];
7066                 break;
7067         default:
7068                 return (0);
7069         }
7070
7071         *offsetp += bytes_to_read;
7072
7073         return (ret);
7074 }
7075
7076 static uint64_t
7077 _read_msb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7078 {
7079         uint64_t ret;
7080         uint8_t *src;
7081
7082         src = (uint8_t *) d->d_buf + *offsetp;
7083
7084         switch (bytes_to_read) {
7085         case 1:
7086                 ret = src[0];
7087                 break;
7088         case 2:
7089                 ret = src[1] | ((uint64_t) src[0]) << 8;
7090                 break;
7091         case 4:
7092                 ret = src[3] | ((uint64_t) src[2]) << 8;
7093                 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7094                 break;
7095         case 8:
7096                 ret = src[7] | ((uint64_t) src[6]) << 8;
7097                 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7098                 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7099                 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7100                 break;
7101         default:
7102                 return (0);
7103         }
7104
7105         *offsetp += bytes_to_read;
7106
7107         return (ret);
7108 }
7109
7110 static uint64_t
7111 _decode_lsb(uint8_t **data, int bytes_to_read)
7112 {
7113         uint64_t ret;
7114         uint8_t *src;
7115
7116         src = *data;
7117
7118         ret = 0;
7119         switch (bytes_to_read) {
7120         case 8:
7121                 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7122                 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7123                 /* FALLTHROUGH */
7124         case 4:
7125                 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7126                 /* FALLTHROUGH */
7127         case 2:
7128                 ret |= ((uint64_t) src[1]) << 8;
7129                 /* FALLTHROUGH */
7130         case 1:
7131                 ret |= src[0];
7132                 break;
7133         default:
7134                 return (0);
7135         }
7136
7137         *data += bytes_to_read;
7138
7139         return (ret);
7140 }
7141
7142 static uint64_t
7143 _decode_msb(uint8_t **data, int bytes_to_read)
7144 {
7145         uint64_t ret;
7146         uint8_t *src;
7147
7148         src = *data;
7149
7150         ret = 0;
7151         switch (bytes_to_read) {
7152         case 1:
7153                 ret = src[0];
7154                 break;
7155         case 2:
7156                 ret = src[1] | ((uint64_t) src[0]) << 8;
7157                 break;
7158         case 4:
7159                 ret = src[3] | ((uint64_t) src[2]) << 8;
7160                 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7161                 break;
7162         case 8:
7163                 ret = src[7] | ((uint64_t) src[6]) << 8;
7164                 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7165                 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7166                 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7167                 break;
7168         default:
7169                 return (0);
7170                 break;
7171         }
7172
7173         *data += bytes_to_read;
7174
7175         return (ret);
7176 }
7177
7178 static int64_t
7179 _decode_sleb128(uint8_t **dp, uint8_t *dpe)
7180 {
7181         int64_t ret = 0;
7182         uint8_t b = 0;
7183         int shift = 0;
7184
7185         uint8_t *src = *dp;
7186
7187         do {
7188                 if (src >= dpe)
7189                         break;
7190                 b = *src++;
7191                 ret |= ((b & 0x7f) << shift);
7192                 shift += 7;
7193         } while ((b & 0x80) != 0);
7194
7195         if (shift < 32 && (b & 0x40) != 0)
7196                 ret |= (-1 << shift);
7197
7198         *dp = src;
7199
7200         return (ret);
7201 }
7202
7203 static uint64_t
7204 _decode_uleb128(uint8_t **dp, uint8_t *dpe)
7205 {
7206         uint64_t ret = 0;
7207         uint8_t b;
7208         int shift = 0;
7209
7210         uint8_t *src = *dp;
7211
7212         do {
7213                 if (src >= dpe)
7214                         break;
7215                 b = *src++;
7216                 ret |= ((b & 0x7f) << shift);
7217                 shift += 7;
7218         } while ((b & 0x80) != 0);
7219
7220         *dp = src;
7221
7222         return (ret);
7223 }
7224
7225 static void
7226 readelf_version(void)
7227 {
7228         (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(),
7229             elftc_version());
7230         exit(EXIT_SUCCESS);
7231 }
7232
7233 #define USAGE_MESSAGE   "\
7234 Usage: %s [options] file...\n\
7235   Display information about ELF objects and ar(1) archives.\n\n\
7236   Options:\n\
7237   -a | --all               Equivalent to specifying options '-dhIlrsASV'.\n\
7238   -c | --archive-index     Print the archive symbol table for archives.\n\
7239   -d | --dynamic           Print the contents of SHT_DYNAMIC sections.\n\
7240   -e | --headers           Print all headers in the object.\n\
7241   -g | --section-groups    Print the contents of the section groups.\n\
7242   -h | --file-header       Print the file header for the object.\n\
7243   -l | --program-headers   Print the PHDR table for the object.\n\
7244   -n | --notes             Print the contents of SHT_NOTE sections.\n\
7245   -p INDEX | --string-dump=INDEX\n\
7246                            Print the contents of section at index INDEX.\n\
7247   -r | --relocs            Print relocation information.\n\
7248   -s | --syms | --symbols  Print symbol tables.\n\
7249   -t | --section-details   Print additional information about sections.\n\
7250   -v | --version           Print a version identifier and exit.\n\
7251   -w[afilmoprsFLR] | --debug-dump={abbrev,aranges,decodedline,frames,\n\
7252                                frames-interp,info,loc,macro,pubnames,\n\
7253                                ranges,Ranges,rawline,str}\n\
7254                            Display DWARF information.\n\
7255   -x INDEX | --hex-dump=INDEX\n\
7256                            Display contents of a section as hexadecimal.\n\
7257   -A | --arch-specific     (accepted, but ignored)\n\
7258   -D | --use-dynamic       Print the symbol table specified by the DT_SYMTAB\n\
7259                            entry in the \".dynamic\" section.\n\
7260   -H | --help              Print a help message.\n\
7261   -I | --histogram         Print information on bucket list lengths for \n\
7262                            hash sections.\n\
7263   -N | --full-section-name (accepted, but ignored)\n\
7264   -S | --sections | --section-headers\n\
7265                            Print information about section headers.\n\
7266   -V | --version-info      Print symbol versoning information.\n\
7267   -W | --wide              Print information without wrapping long lines.\n"
7268
7269
7270 static void
7271 readelf_usage(int status)
7272 {
7273         fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
7274         exit(status);
7275 }
7276
7277 int
7278 main(int argc, char **argv)
7279 {
7280         struct readelf  *re, re_storage;
7281         unsigned long    si;
7282         int              opt, i;
7283         char            *ep;
7284
7285         re = &re_storage;
7286         memset(re, 0, sizeof(*re));
7287         STAILQ_INIT(&re->v_dumpop);
7288
7289         while ((opt = getopt_long(argc, argv, "AacDdegHhIi:lNnp:rSstuVvWw::x:",
7290             longopts, NULL)) != -1) {
7291                 switch(opt) {
7292                 case '?':
7293                         readelf_usage(EXIT_SUCCESS);
7294                         break;
7295                 case 'A':
7296                         re->options |= RE_AA;
7297                         break;
7298                 case 'a':
7299                         re->options |= RE_AA | RE_D | RE_G | RE_H | RE_II |
7300                             RE_L | RE_R | RE_SS | RE_S | RE_VV;
7301                         break;
7302                 case 'c':
7303                         re->options |= RE_C;
7304                         break;
7305                 case 'D':
7306                         re->options |= RE_DD;
7307                         break;
7308                 case 'd':
7309                         re->options |= RE_D;
7310                         break;
7311                 case 'e':
7312                         re->options |= RE_H | RE_L | RE_SS;
7313                         break;
7314                 case 'g':
7315                         re->options |= RE_G;
7316                         break;
7317                 case 'H':
7318                         readelf_usage(EXIT_SUCCESS);
7319                         break;
7320                 case 'h':
7321                         re->options |= RE_H;
7322                         break;
7323                 case 'I':
7324                         re->options |= RE_II;
7325                         break;
7326                 case 'i':
7327                         /* Not implemented yet. */
7328                         break;
7329                 case 'l':
7330                         re->options |= RE_L;
7331                         break;
7332                 case 'N':
7333                         re->options |= RE_NN;
7334                         break;
7335                 case 'n':
7336                         re->options |= RE_N;
7337                         break;
7338                 case 'p':
7339                         re->options |= RE_P;
7340                         si = strtoul(optarg, &ep, 10);
7341                         if (*ep == '\0')
7342                                 add_dumpop(re, (size_t) si, NULL, STR_DUMP,
7343                                     DUMP_BY_INDEX);
7344                         else
7345                                 add_dumpop(re, 0, optarg, STR_DUMP,
7346                                     DUMP_BY_NAME);
7347                         break;
7348                 case 'r':
7349                         re->options |= RE_R;
7350                         break;
7351                 case 'S':
7352                         re->options |= RE_SS;
7353                         break;
7354                 case 's':
7355                         re->options |= RE_S;
7356                         break;
7357                 case 't':
7358                         re->options |= RE_T;
7359                         break;
7360                 case 'u':
7361                         re->options |= RE_U;
7362                         break;
7363                 case 'V':
7364                         re->options |= RE_VV;
7365                         break;
7366                 case 'v':
7367                         readelf_version();
7368                         break;
7369                 case 'W':
7370                         re->options |= RE_WW;
7371                         break;
7372                 case 'w':
7373                         re->options |= RE_W;
7374                         parse_dwarf_op_short(re, optarg);
7375                         break;
7376                 case 'x':
7377                         re->options |= RE_X;
7378                         si = strtoul(optarg, &ep, 10);
7379                         if (*ep == '\0')
7380                                 add_dumpop(re, (size_t) si, NULL, HEX_DUMP,
7381                                     DUMP_BY_INDEX);
7382                         else
7383                                 add_dumpop(re, 0, optarg, HEX_DUMP,
7384                                     DUMP_BY_NAME);
7385                         break;
7386                 case OPTION_DEBUG_DUMP:
7387                         re->options |= RE_W;
7388                         parse_dwarf_op_long(re, optarg);
7389                 }
7390         }
7391
7392         argv += optind;
7393         argc -= optind;
7394
7395         if (argc == 0 || re->options == 0)
7396                 readelf_usage(EXIT_FAILURE);
7397
7398         if (argc > 1)
7399                 re->flags |= DISPLAY_FILENAME;
7400
7401         if (elf_version(EV_CURRENT) == EV_NONE)
7402                 errx(EXIT_FAILURE, "ELF library initialization failed: %s",
7403                     elf_errmsg(-1));
7404
7405         for (i = 0; i < argc; i++) {
7406                 re->filename = argv[i];
7407                 dump_object(re);
7408         }
7409
7410         exit(EXIT_SUCCESS);
7411 }