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[FreeBSD/FreeBSD.git] / contrib / elftoolchain / elfdump / elfdump.c
1 /*-
2  * Copyright (c) 2007-2012 Kai Wang
3  * Copyright (c) 2003 David O'Brien.  All rights reserved.
4  * Copyright (c) 2001 Jake Burkholder
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28
29 #include <sys/param.h>
30 #include <sys/queue.h>
31 #include <sys/stat.h>
32
33 #include <ar.h>
34 #include <assert.h>
35 #include <err.h>
36 #include <fcntl.h>
37 #include <gelf.h>
38 #include <getopt.h>
39 #include <libelftc.h>
40 #include <inttypes.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <unistd.h>
45
46 #ifdef USE_LIBARCHIVE_AR
47 #include <archive.h>
48 #include <archive_entry.h>
49 #endif
50
51 #include "_elftc.h"
52
53 ELFTC_VCSID("$Id: elfdump.c 3198 2015-05-14 18:36:19Z emaste $");
54
55 #if defined(ELFTC_NEED_ELF_NOTE_DEFINITION)
56 #include "native-elf-format.h"
57 #if ELFTC_CLASS == ELFCLASS32
58 typedef Elf32_Nhdr      Elf_Note;
59 #else
60 typedef Elf64_Nhdr      Elf_Note;
61 #endif
62 #endif
63
64 /* elfdump(1) options. */
65 #define ED_DYN          (1<<0)
66 #define ED_EHDR         (1<<1)
67 #define ED_GOT          (1<<2)
68 #define ED_HASH         (1<<3)
69 #define ED_INTERP       (1<<4)
70 #define ED_NOTE         (1<<5)
71 #define ED_PHDR         (1<<6)
72 #define ED_REL          (1<<7)
73 #define ED_SHDR         (1<<8)
74 #define ED_SYMTAB       (1<<9)
75 #define ED_SYMVER       (1<<10)
76 #define ED_CHECKSUM     (1<<11)
77 #define ED_ALL          ((1<<12)-1)
78
79 /* elfdump(1) run control flags. */
80 #define SOLARIS_FMT             (1<<0)
81 #define PRINT_FILENAME          (1<<1)
82 #define PRINT_ARSYM             (1<<2)
83 #define ONLY_ARSYM              (1<<3)
84
85 /* Convenient print macro. */
86 #define PRT(...)        fprintf(ed->out, __VA_ARGS__)
87
88 /* Internal data structure for sections. */
89 struct section {
90         const char      *name;          /* section name */
91         Elf_Scn         *scn;           /* section scn */
92         uint64_t         off;           /* section offset */
93         uint64_t         sz;            /* section size */
94         uint64_t         entsize;       /* section entsize */
95         uint64_t         align;         /* section alignment */
96         uint64_t         type;          /* section type */
97         uint64_t         flags;         /* section flags */
98         uint64_t         addr;          /* section virtual addr */
99         uint32_t         link;          /* section link ndx */
100         uint32_t         info;          /* section info ndx */
101 };
102
103 struct spec_name {
104         const char      *name;
105         STAILQ_ENTRY(spec_name) sn_list;
106 };
107
108 /* Structure encapsulates the global data for readelf(1). */
109 struct elfdump {
110         FILE            *out;           /* output redirection. */
111         const char      *filename;      /* current processing file. */
112         const char      *archive;       /* archive name */
113         int              options;       /* command line options. */
114         int              flags;         /* run control flags. */
115         Elf             *elf;           /* underlying ELF descriptor. */
116 #ifndef USE_LIBARCHIVE_AR
117         Elf             *ar;            /* ar(1) archive descriptor. */
118 #endif
119         GElf_Ehdr        ehdr;          /* ELF header. */
120         int              ec;            /* ELF class. */
121         size_t           shnum;         /* #sections. */
122         struct section  *sl;            /* list of sections. */
123         STAILQ_HEAD(, spec_name) snl;   /* list of names specified by -N. */
124 };
125
126 /* Relocation entry. */
127 struct rel_entry {
128         union {
129                 GElf_Rel rel;
130                 GElf_Rela rela;
131         } u_r;
132         const char *symn;
133         uint32_t type;
134 };
135
136 #if defined(ELFTC_NEED_BYTEORDER_EXTENSIONS)
137 static __inline uint32_t
138 be32dec(const void *pp)
139 {
140         unsigned char const *p = (unsigned char const *)pp;
141
142         return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
143 }
144
145 static __inline uint32_t
146 le32dec(const void *pp)
147 {
148         unsigned char const *p = (unsigned char const *)pp;
149
150         return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
151 }
152 #endif
153
154 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#tag_encodings */
155 static const char *
156 d_tags(uint64_t tag)
157 {
158         switch (tag) {
159         case 0: return "DT_NULL";
160         case 1: return "DT_NEEDED";
161         case 2: return "DT_PLTRELSZ";
162         case 3: return "DT_PLTGOT";
163         case 4: return "DT_HASH";
164         case 5: return "DT_STRTAB";
165         case 6: return "DT_SYMTAB";
166         case 7: return "DT_RELA";
167         case 8: return "DT_RELASZ";
168         case 9: return "DT_RELAENT";
169         case 10: return "DT_STRSZ";
170         case 11: return "DT_SYMENT";
171         case 12: return "DT_INIT";
172         case 13: return "DT_FINI";
173         case 14: return "DT_SONAME";
174         case 15: return "DT_RPATH";
175         case 16: return "DT_SYMBOLIC";
176         case 17: return "DT_REL";
177         case 18: return "DT_RELSZ";
178         case 19: return "DT_RELENT";
179         case 20: return "DT_PLTREL";
180         case 21: return "DT_DEBUG";
181         case 22: return "DT_TEXTREL";
182         case 23: return "DT_JMPREL";
183         case 24: return "DT_BIND_NOW";
184         case 25: return "DT_INIT_ARRAY";
185         case 26: return "DT_FINI_ARRAY";
186         case 27: return "DT_INIT_ARRAYSZ";
187         case 28: return "DT_FINI_ARRAYSZ";
188         case 29: return "DT_RUNPATH";
189         case 30: return "DT_FLAGS";
190         case 32: return "DT_PREINIT_ARRAY"; /* XXX: DT_ENCODING */
191         case 33: return "DT_PREINIT_ARRAYSZ";
192         /* 0x6000000D - 0x6ffff000 operating system-specific semantics */
193         case 0x6ffffdf5: return "DT_GNU_PRELINKED";
194         case 0x6ffffdf6: return "DT_GNU_CONFLICTSZ";
195         case 0x6ffffdf7: return "DT_GNU_LIBLISTSZ";
196         case 0x6ffffdf8: return "DT_SUNW_CHECKSUM";
197         case 0x6ffffdf9: return "DT_PLTPADSZ";
198         case 0x6ffffdfa: return "DT_MOVEENT";
199         case 0x6ffffdfb: return "DT_MOVESZ";
200         case 0x6ffffdfc: return "DT_FEATURE";
201         case 0x6ffffdfd: return "DT_POSFLAG_1";
202         case 0x6ffffdfe: return "DT_SYMINSZ";
203         case 0x6ffffdff: return "DT_SYMINENT (DT_VALRNGHI)";
204         case 0x6ffffe00: return "DT_ADDRRNGLO";
205         case 0x6ffffef5: return "DT_GNU_HASH";
206         case 0x6ffffef8: return "DT_GNU_CONFLICT";
207         case 0x6ffffef9: return "DT_GNU_LIBLIST";
208         case 0x6ffffefa: return "DT_SUNW_CONFIG";
209         case 0x6ffffefb: return "DT_SUNW_DEPAUDIT";
210         case 0x6ffffefc: return "DT_SUNW_AUDIT";
211         case 0x6ffffefd: return "DT_SUNW_PLTPAD";
212         case 0x6ffffefe: return "DT_SUNW_MOVETAB";
213         case 0x6ffffeff: return "DT_SYMINFO (DT_ADDRRNGHI)";
214         case 0x6ffffff9: return "DT_RELACOUNT";
215         case 0x6ffffffa: return "DT_RELCOUNT";
216         case 0x6ffffffb: return "DT_FLAGS_1";
217         case 0x6ffffffc: return "DT_VERDEF";
218         case 0x6ffffffd: return "DT_VERDEFNUM";
219         case 0x6ffffffe: return "DT_VERNEED";
220         case 0x6fffffff: return "DT_VERNEEDNUM";
221         case 0x6ffffff0: return "DT_GNU_VERSYM";
222         /* 0x70000000 - 0x7fffffff processor-specific semantics */
223         case 0x70000000: return "DT_IA_64_PLT_RESERVE";
224         case 0x7ffffffd: return "DT_SUNW_AUXILIARY";
225         case 0x7ffffffe: return "DT_SUNW_USED";
226         case 0x7fffffff: return "DT_SUNW_FILTER";
227         default: return "ERROR: TAG NOT DEFINED";
228         }
229 }
230
231 static const char *
232 e_machines(unsigned int mach)
233 {
234         static char machdesc[64];
235
236         switch (mach) {
237         case EM_NONE:   return "EM_NONE";
238         case EM_M32:    return "EM_M32";
239         case EM_SPARC:  return "EM_SPARC";
240         case EM_386:    return "EM_386";
241         case EM_68K:    return "EM_68K";
242         case EM_88K:    return "EM_88K";
243         case EM_IAMCU:  return "EM_IAMCU";
244         case EM_860:    return "EM_860";
245         case EM_MIPS:   return "EM_MIPS";
246         case EM_PPC:    return "EM_PPC";
247         case EM_ARM:    return "EM_ARM";
248         case EM_ALPHA:  return "EM_ALPHA (legacy)";
249         case EM_SPARCV9:return "EM_SPARCV9";
250         case EM_IA_64:  return "EM_IA_64";
251         case EM_X86_64: return "EM_X86_64";
252         }
253         snprintf(machdesc, sizeof(machdesc),
254             "(unknown machine) -- type 0x%x", mach);
255         return (machdesc);
256 }
257
258 static const char *e_types[] = {
259         "ET_NONE", "ET_REL", "ET_EXEC", "ET_DYN", "ET_CORE"
260 };
261
262 static const char *ei_versions[] = {
263         "EV_NONE", "EV_CURRENT"
264 };
265
266 static const char *ei_classes[] = {
267         "ELFCLASSNONE", "ELFCLASS32", "ELFCLASS64"
268 };
269
270 static const char *ei_data[] = {
271         "ELFDATANONE", "ELFDATA2LSB", "ELFDATA2MSB"
272 };
273
274 static const char *ei_abis[] = {
275         "ELFOSABI_NONE", "ELFOSABI_HPUX", "ELFOSABI_NETBSD", "ELFOSABI_LINUX",
276         "ELFOSABI_HURD", "ELFOSABI_86OPEN", "ELFOSABI_SOLARIS",
277         "ELFOSABI_MONTEREY", "ELFOSABI_IRIX", "ELFOSABI_FREEBSD",
278         "ELFOSABI_TRU64", "ELFOSABI_MODESTO", "ELFOSABI_OPENBSD"
279 };
280
281 static const char *p_types[] = {
282         "PT_NULL", "PT_LOAD", "PT_DYNAMIC", "PT_INTERP", "PT_NOTE",
283         "PT_SHLIB", "PT_PHDR", "PT_TLS"
284 };
285
286 static const char *p_flags[] = {
287         "", "PF_X", "PF_W", "PF_X|PF_W", "PF_R", "PF_X|PF_R", "PF_W|PF_R",
288         "PF_X|PF_W|PF_R"
289 };
290
291 static const char *
292 sh_name(struct elfdump *ed, int ndx)
293 {
294         static char num[10];
295
296         switch (ndx) {
297         case SHN_UNDEF: return "UNDEF";
298         case SHN_ABS: return "ABS";
299         case SHN_COMMON: return "COMMON";
300         default:
301                 if ((uint64_t)ndx < ed->shnum)
302                         return (ed->sl[ndx].name);
303                 else {
304                         snprintf(num, sizeof(num), "%d", ndx);
305                         return (num);
306                 }
307         }
308 }
309
310 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html#sh_type */
311 static const char *
312 sh_types(u_int64_t sht) {
313         switch (sht) {
314         case 0: return "SHT_NULL";
315         case 1: return "SHT_PROGBITS";
316         case 2: return "SHT_SYMTAB";
317         case 3: return "SHT_STRTAB";
318         case 4: return "SHT_RELA";
319         case 5: return "SHT_HASH";
320         case 6: return "SHT_DYNAMIC";
321         case 7: return "SHT_NOTE";
322         case 8: return "SHT_NOBITS";
323         case 9: return "SHT_REL";
324         case 10: return "SHT_SHLIB";
325         case 11: return "SHT_DYNSYM";
326         case 14: return "SHT_INIT_ARRAY";
327         case 15: return "SHT_FINI_ARRAY";
328         case 16: return "SHT_PREINIT_ARRAY";
329         case 17: return "SHT_GROUP";
330         case 18: return "SHT_SYMTAB_SHNDX";
331         /* 0x60000000 - 0x6fffffff operating system-specific semantics */
332         case 0x6ffffff0: return "XXX:VERSYM";
333         case 0x6ffffff6: return "SHT_GNU_HASH";
334         case 0x6ffffff7: return "SHT_GNU_LIBLIST";
335         case 0x6ffffffc: return "XXX:VERDEF";
336         case 0x6ffffffd: return "SHT_SUNW(GNU)_verdef";
337         case 0x6ffffffe: return "SHT_SUNW(GNU)_verneed";
338         case 0x6fffffff: return "SHT_SUNW(GNU)_versym";
339         /* 0x70000000 - 0x7fffffff processor-specific semantics */
340         case 0x70000000: return "SHT_IA_64_EXT";
341         case 0x70000001: return "SHT_IA_64_UNWIND";
342         case 0x7ffffffd: return "XXX:AUXILIARY";
343         case 0x7fffffff: return "XXX:FILTER";
344         /* 0x80000000 - 0xffffffff application programs */
345         default: return "ERROR: SHT NOT DEFINED";
346         }
347 }
348
349 /*
350  * Define known section flags. These flags are defined in the order
351  * they are to be printed out.
352  */
353 #define DEFINE_SHFLAGS()                        \
354         DEFINE_SHF(WRITE)                       \
355         DEFINE_SHF(ALLOC)                       \
356         DEFINE_SHF(EXECINSTR)                   \
357         DEFINE_SHF(MERGE)                       \
358         DEFINE_SHF(STRINGS)                     \
359         DEFINE_SHF(INFO_LINK)                   \
360         DEFINE_SHF(LINK_ORDER)                  \
361         DEFINE_SHF(OS_NONCONFORMING)            \
362         DEFINE_SHF(GROUP)                       \
363         DEFINE_SHF(TLS)
364
365 #undef  DEFINE_SHF
366 #define DEFINE_SHF(F) "SHF_" #F "|"
367 #define ALLSHFLAGS      DEFINE_SHFLAGS()
368
369 static const char *
370 sh_flags(uint64_t shf)
371 {
372         static char     flg[sizeof(ALLSHFLAGS)+1];
373
374         flg[0] = '\0';
375
376 #undef  DEFINE_SHF
377 #define DEFINE_SHF(N)                           \
378         if (shf & SHF_##N)                      \
379                 strcat(flg, "SHF_" #N "|");     \
380
381         DEFINE_SHFLAGS()
382
383         flg[strlen(flg) - 1] = '\0'; /* Remove the trailing "|". */
384
385         return (flg);
386 }
387
388 static const char *st_types[] = {
389         "STT_NOTYPE", "STT_OBJECT", "STT_FUNC", "STT_SECTION", "STT_FILE",
390         "STT_COMMON", "STT_TLS"
391 };
392
393 static const char *st_types_S[] = {
394         "NOTY", "OBJT", "FUNC", "SECT", "FILE"
395 };
396
397 static const char *st_bindings[] = {
398         "STB_LOCAL", "STB_GLOBAL", "STB_WEAK"
399 };
400
401 static const char *st_bindings_S[] = {
402         "LOCL", "GLOB", "WEAK"
403 };
404
405 static unsigned char st_others[] = {
406         'D', 'I', 'H', 'P'
407 };
408
409 static const char *
410 r_type(unsigned int mach, unsigned int type)
411 {
412         switch(mach) {
413         case EM_NONE: return "";
414         case EM_386:
415         case EM_IAMCU:
416                 switch(type) {
417                 case 0: return "R_386_NONE";
418                 case 1: return "R_386_32";
419                 case 2: return "R_386_PC32";
420                 case 3: return "R_386_GOT32";
421                 case 4: return "R_386_PLT32";
422                 case 5: return "R_386_COPY";
423                 case 6: return "R_386_GLOB_DAT";
424                 case 7: return "R_386_JMP_SLOT";
425                 case 8: return "R_386_RELATIVE";
426                 case 9: return "R_386_GOTOFF";
427                 case 10: return "R_386_GOTPC";
428                 case 14: return "R_386_TLS_TPOFF";
429                 case 15: return "R_386_TLS_IE";
430                 case 16: return "R_386_TLS_GOTIE";
431                 case 17: return "R_386_TLS_LE";
432                 case 18: return "R_386_TLS_GD";
433                 case 19: return "R_386_TLS_LDM";
434                 case 24: return "R_386_TLS_GD_32";
435                 case 25: return "R_386_TLS_GD_PUSH";
436                 case 26: return "R_386_TLS_GD_CALL";
437                 case 27: return "R_386_TLS_GD_POP";
438                 case 28: return "R_386_TLS_LDM_32";
439                 case 29: return "R_386_TLS_LDM_PUSH";
440                 case 30: return "R_386_TLS_LDM_CALL";
441                 case 31: return "R_386_TLS_LDM_POP";
442                 case 32: return "R_386_TLS_LDO_32";
443                 case 33: return "R_386_TLS_IE_32";
444                 case 34: return "R_386_TLS_LE_32";
445                 case 35: return "R_386_TLS_DTPMOD32";
446                 case 36: return "R_386_TLS_DTPOFF32";
447                 case 37: return "R_386_TLS_TPOFF32";
448                 default: return "";
449                 }
450         case EM_ARM:
451                 switch(type) {
452                 case 0: return "R_ARM_NONE";
453                 case 1: return "R_ARM_PC24";
454                 case 2: return "R_ARM_ABS32";
455                 case 3: return "R_ARM_REL32";
456                 case 4: return "R_ARM_PC13";
457                 case 5: return "R_ARM_ABS16";
458                 case 6: return "R_ARM_ABS12";
459                 case 7: return "R_ARM_THM_ABS5";
460                 case 8: return "R_ARM_ABS8";
461                 case 9: return "R_ARM_SBREL32";
462                 case 10: return "R_ARM_THM_PC22";
463                 case 11: return "R_ARM_THM_PC8";
464                 case 12: return "R_ARM_AMP_VCALL9";
465                 case 13: return "R_ARM_SWI24";
466                 case 14: return "R_ARM_THM_SWI8";
467                 case 15: return "R_ARM_XPC25";
468                 case 16: return "R_ARM_THM_XPC22";
469                 case 20: return "R_ARM_COPY";
470                 case 21: return "R_ARM_GLOB_DAT";
471                 case 22: return "R_ARM_JUMP_SLOT";
472                 case 23: return "R_ARM_RELATIVE";
473                 case 24: return "R_ARM_GOTOFF";
474                 case 25: return "R_ARM_GOTPC";
475                 case 26: return "R_ARM_GOT32";
476                 case 27: return "R_ARM_PLT32";
477                 case 100: return "R_ARM_GNU_VTENTRY";
478                 case 101: return "R_ARM_GNU_VTINHERIT";
479                 case 250: return "R_ARM_RSBREL32";
480                 case 251: return "R_ARM_THM_RPC22";
481                 case 252: return "R_ARM_RREL32";
482                 case 253: return "R_ARM_RABS32";
483                 case 254: return "R_ARM_RPC24";
484                 case 255: return "R_ARM_RBASE";
485                 default: return "";
486                 }
487         case EM_IA_64:
488                 switch(type) {
489                 case 0: return "R_IA_64_NONE";
490                 case 33: return "R_IA_64_IMM14";
491                 case 34: return "R_IA_64_IMM22";
492                 case 35: return "R_IA_64_IMM64";
493                 case 36: return "R_IA_64_DIR32MSB";
494                 case 37: return "R_IA_64_DIR32LSB";
495                 case 38: return "R_IA_64_DIR64MSB";
496                 case 39: return "R_IA_64_DIR64LSB";
497                 case 42: return "R_IA_64_GPREL22";
498                 case 43: return "R_IA_64_GPREL64I";
499                 case 44: return "R_IA_64_GPREL32MSB";
500                 case 45: return "R_IA_64_GPREL32LSB";
501                 case 46: return "R_IA_64_GPREL64MSB";
502                 case 47: return "R_IA_64_GPREL64LSB";
503                 case 50: return "R_IA_64_LTOFF22";
504                 case 51: return "R_IA_64_LTOFF64I";
505                 case 58: return "R_IA_64_PLTOFF22";
506                 case 59: return "R_IA_64_PLTOFF64I";
507                 case 62: return "R_IA_64_PLTOFF64MSB";
508                 case 63: return "R_IA_64_PLTOFF64LSB";
509                 case 67: return "R_IA_64_FPTR64I";
510                 case 68: return "R_IA_64_FPTR32MSB";
511                 case 69: return "R_IA_64_FPTR32LSB";
512                 case 70: return "R_IA_64_FPTR64MSB";
513                 case 71: return "R_IA_64_FPTR64LSB";
514                 case 72: return "R_IA_64_PCREL60B";
515                 case 73: return "R_IA_64_PCREL21B";
516                 case 74: return "R_IA_64_PCREL21M";
517                 case 75: return "R_IA_64_PCREL21F";
518                 case 76: return "R_IA_64_PCREL32MSB";
519                 case 77: return "R_IA_64_PCREL32LSB";
520                 case 78: return "R_IA_64_PCREL64MSB";
521                 case 79: return "R_IA_64_PCREL64LSB";
522                 case 82: return "R_IA_64_LTOFF_FPTR22";
523                 case 83: return "R_IA_64_LTOFF_FPTR64I";
524                 case 84: return "R_IA_64_LTOFF_FPTR32MSB";
525                 case 85: return "R_IA_64_LTOFF_FPTR32LSB";
526                 case 86: return "R_IA_64_LTOFF_FPTR64MSB";
527                 case 87: return "R_IA_64_LTOFF_FPTR64LSB";
528                 case 92: return "R_IA_64_SEGREL32MSB";
529                 case 93: return "R_IA_64_SEGREL32LSB";
530                 case 94: return "R_IA_64_SEGREL64MSB";
531                 case 95: return "R_IA_64_SEGREL64LSB";
532                 case 100: return "R_IA_64_SECREL32MSB";
533                 case 101: return "R_IA_64_SECREL32LSB";
534                 case 102: return "R_IA_64_SECREL64MSB";
535                 case 103: return "R_IA_64_SECREL64LSB";
536                 case 108: return "R_IA_64_REL32MSB";
537                 case 109: return "R_IA_64_REL32LSB";
538                 case 110: return "R_IA_64_REL64MSB";
539                 case 111: return "R_IA_64_REL64LSB";
540                 case 116: return "R_IA_64_LTV32MSB";
541                 case 117: return "R_IA_64_LTV32LSB";
542                 case 118: return "R_IA_64_LTV64MSB";
543                 case 119: return "R_IA_64_LTV64LSB";
544                 case 121: return "R_IA_64_PCREL21BI";
545                 case 122: return "R_IA_64_PCREL22";
546                 case 123: return "R_IA_64_PCREL64I";
547                 case 128: return "R_IA_64_IPLTMSB";
548                 case 129: return "R_IA_64_IPLTLSB";
549                 case 133: return "R_IA_64_SUB";
550                 case 134: return "R_IA_64_LTOFF22X";
551                 case 135: return "R_IA_64_LDXMOV";
552                 case 145: return "R_IA_64_TPREL14";
553                 case 146: return "R_IA_64_TPREL22";
554                 case 147: return "R_IA_64_TPREL64I";
555                 case 150: return "R_IA_64_TPREL64MSB";
556                 case 151: return "R_IA_64_TPREL64LSB";
557                 case 154: return "R_IA_64_LTOFF_TPREL22";
558                 case 166: return "R_IA_64_DTPMOD64MSB";
559                 case 167: return "R_IA_64_DTPMOD64LSB";
560                 case 170: return "R_IA_64_LTOFF_DTPMOD22";
561                 case 177: return "R_IA_64_DTPREL14";
562                 case 178: return "R_IA_64_DTPREL22";
563                 case 179: return "R_IA_64_DTPREL64I";
564                 case 180: return "R_IA_64_DTPREL32MSB";
565                 case 181: return "R_IA_64_DTPREL32LSB";
566                 case 182: return "R_IA_64_DTPREL64MSB";
567                 case 183: return "R_IA_64_DTPREL64LSB";
568                 case 186: return "R_IA_64_LTOFF_DTPREL22";
569                 default: return "";
570                 }
571         case EM_MIPS:
572                 switch(type) {
573                 case 0: return "R_MIPS_NONE";
574                 case 1: return "R_MIPS_16";
575                 case 2: return "R_MIPS_32";
576                 case 3: return "R_MIPS_REL32";
577                 case 4: return "R_MIPS_26";
578                 case 5: return "R_MIPS_HI16";
579                 case 6: return "R_MIPS_LO16";
580                 case 7: return "R_MIPS_GPREL16";
581                 case 8: return "R_MIPS_LITERAL";
582                 case 9: return "R_MIPS_GOT16";
583                 case 10: return "R_MIPS_PC16";
584                 case 11: return "R_MIPS_CALL16";
585                 case 12: return "R_MIPS_GPREL32";
586                 case 21: return "R_MIPS_GOTHI16";
587                 case 22: return "R_MIPS_GOTLO16";
588                 case 30: return "R_MIPS_CALLHI16";
589                 case 31: return "R_MIPS_CALLLO16";
590                 default: return "";
591                 }
592         case EM_PPC:
593                 switch(type) {
594                 case 0: return "R_PPC_NONE";
595                 case 1: return "R_PPC_ADDR32";
596                 case 2: return "R_PPC_ADDR24";
597                 case 3: return "R_PPC_ADDR16";
598                 case 4: return "R_PPC_ADDR16_LO";
599                 case 5: return "R_PPC_ADDR16_HI";
600                 case 6: return "R_PPC_ADDR16_HA";
601                 case 7: return "R_PPC_ADDR14";
602                 case 8: return "R_PPC_ADDR14_BRTAKEN";
603                 case 9: return "R_PPC_ADDR14_BRNTAKEN";
604                 case 10: return "R_PPC_REL24";
605                 case 11: return "R_PPC_REL14";
606                 case 12: return "R_PPC_REL14_BRTAKEN";
607                 case 13: return "R_PPC_REL14_BRNTAKEN";
608                 case 14: return "R_PPC_GOT16";
609                 case 15: return "R_PPC_GOT16_LO";
610                 case 16: return "R_PPC_GOT16_HI";
611                 case 17: return "R_PPC_GOT16_HA";
612                 case 18: return "R_PPC_PLTREL24";
613                 case 19: return "R_PPC_COPY";
614                 case 20: return "R_PPC_GLOB_DAT";
615                 case 21: return "R_PPC_JMP_SLOT";
616                 case 22: return "R_PPC_RELATIVE";
617                 case 23: return "R_PPC_LOCAL24PC";
618                 case 24: return "R_PPC_UADDR32";
619                 case 25: return "R_PPC_UADDR16";
620                 case 26: return "R_PPC_REL32";
621                 case 27: return "R_PPC_PLT32";
622                 case 28: return "R_PPC_PLTREL32";
623                 case 29: return "R_PPC_PLT16_LO";
624                 case 30: return "R_PPC_PLT16_HI";
625                 case 31: return "R_PPC_PLT16_HA";
626                 case 32: return "R_PPC_SDAREL16";
627                 case 33: return "R_PPC_SECTOFF";
628                 case 34: return "R_PPC_SECTOFF_LO";
629                 case 35: return "R_PPC_SECTOFF_HI";
630                 case 36: return "R_PPC_SECTOFF_HA";
631                 case 67: return "R_PPC_TLS";
632                 case 68: return "R_PPC_DTPMOD32";
633                 case 69: return "R_PPC_TPREL16";
634                 case 70: return "R_PPC_TPREL16_LO";
635                 case 71: return "R_PPC_TPREL16_HI";
636                 case 72: return "R_PPC_TPREL16_HA";
637                 case 73: return "R_PPC_TPREL32";
638                 case 74: return "R_PPC_DTPREL16";
639                 case 75: return "R_PPC_DTPREL16_LO";
640                 case 76: return "R_PPC_DTPREL16_HI";
641                 case 77: return "R_PPC_DTPREL16_HA";
642                 case 78: return "R_PPC_DTPREL32";
643                 case 79: return "R_PPC_GOT_TLSGD16";
644                 case 80: return "R_PPC_GOT_TLSGD16_LO";
645                 case 81: return "R_PPC_GOT_TLSGD16_HI";
646                 case 82: return "R_PPC_GOT_TLSGD16_HA";
647                 case 83: return "R_PPC_GOT_TLSLD16";
648                 case 84: return "R_PPC_GOT_TLSLD16_LO";
649                 case 85: return "R_PPC_GOT_TLSLD16_HI";
650                 case 86: return "R_PPC_GOT_TLSLD16_HA";
651                 case 87: return "R_PPC_GOT_TPREL16";
652                 case 88: return "R_PPC_GOT_TPREL16_LO";
653                 case 89: return "R_PPC_GOT_TPREL16_HI";
654                 case 90: return "R_PPC_GOT_TPREL16_HA";
655                 case 101: return "R_PPC_EMB_NADDR32";
656                 case 102: return "R_PPC_EMB_NADDR16";
657                 case 103: return "R_PPC_EMB_NADDR16_LO";
658                 case 104: return "R_PPC_EMB_NADDR16_HI";
659                 case 105: return "R_PPC_EMB_NADDR16_HA";
660                 case 106: return "R_PPC_EMB_SDAI16";
661                 case 107: return "R_PPC_EMB_SDA2I16";
662                 case 108: return "R_PPC_EMB_SDA2REL";
663                 case 109: return "R_PPC_EMB_SDA21";
664                 case 110: return "R_PPC_EMB_MRKREF";
665                 case 111: return "R_PPC_EMB_RELSEC16";
666                 case 112: return "R_PPC_EMB_RELST_LO";
667                 case 113: return "R_PPC_EMB_RELST_HI";
668                 case 114: return "R_PPC_EMB_RELST_HA";
669                 case 115: return "R_PPC_EMB_BIT_FLD";
670                 case 116: return "R_PPC_EMB_RELSDA";
671                 default: return "";
672                 }
673         case EM_SPARC:
674         case EM_SPARCV9:
675                 switch(type) {
676                 case 0: return "R_SPARC_NONE";
677                 case 1: return "R_SPARC_8";
678                 case 2: return "R_SPARC_16";
679                 case 3: return "R_SPARC_32";
680                 case 4: return "R_SPARC_DISP8";
681                 case 5: return "R_SPARC_DISP16";
682                 case 6: return "R_SPARC_DISP32";
683                 case 7: return "R_SPARC_WDISP30";
684                 case 8: return "R_SPARC_WDISP22";
685                 case 9: return "R_SPARC_HI22";
686                 case 10: return "R_SPARC_22";
687                 case 11: return "R_SPARC_13";
688                 case 12: return "R_SPARC_LO10";
689                 case 13: return "R_SPARC_GOT10";
690                 case 14: return "R_SPARC_GOT13";
691                 case 15: return "R_SPARC_GOT22";
692                 case 16: return "R_SPARC_PC10";
693                 case 17: return "R_SPARC_PC22";
694                 case 18: return "R_SPARC_WPLT30";
695                 case 19: return "R_SPARC_COPY";
696                 case 20: return "R_SPARC_GLOB_DAT";
697                 case 21: return "R_SPARC_JMP_SLOT";
698                 case 22: return "R_SPARC_RELATIVE";
699                 case 23: return "R_SPARC_UA32";
700                 case 24: return "R_SPARC_PLT32";
701                 case 25: return "R_SPARC_HIPLT22";
702                 case 26: return "R_SPARC_LOPLT10";
703                 case 27: return "R_SPARC_PCPLT32";
704                 case 28: return "R_SPARC_PCPLT22";
705                 case 29: return "R_SPARC_PCPLT10";
706                 case 30: return "R_SPARC_10";
707                 case 31: return "R_SPARC_11";
708                 case 32: return "R_SPARC_64";
709                 case 33: return "R_SPARC_OLO10";
710                 case 34: return "R_SPARC_HH22";
711                 case 35: return "R_SPARC_HM10";
712                 case 36: return "R_SPARC_LM22";
713                 case 37: return "R_SPARC_PC_HH22";
714                 case 38: return "R_SPARC_PC_HM10";
715                 case 39: return "R_SPARC_PC_LM22";
716                 case 40: return "R_SPARC_WDISP16";
717                 case 41: return "R_SPARC_WDISP19";
718                 case 42: return "R_SPARC_GLOB_JMP";
719                 case 43: return "R_SPARC_7";
720                 case 44: return "R_SPARC_5";
721                 case 45: return "R_SPARC_6";
722                 case 46: return "R_SPARC_DISP64";
723                 case 47: return "R_SPARC_PLT64";
724                 case 48: return "R_SPARC_HIX22";
725                 case 49: return "R_SPARC_LOX10";
726                 case 50: return "R_SPARC_H44";
727                 case 51: return "R_SPARC_M44";
728                 case 52: return "R_SPARC_L44";
729                 case 53: return "R_SPARC_REGISTER";
730                 case 54: return "R_SPARC_UA64";
731                 case 55: return "R_SPARC_UA16";
732                 case 56: return "R_SPARC_TLS_GD_HI22";
733                 case 57: return "R_SPARC_TLS_GD_LO10";
734                 case 58: return "R_SPARC_TLS_GD_ADD";
735                 case 59: return "R_SPARC_TLS_GD_CALL";
736                 case 60: return "R_SPARC_TLS_LDM_HI22";
737                 case 61: return "R_SPARC_TLS_LDM_LO10";
738                 case 62: return "R_SPARC_TLS_LDM_ADD";
739                 case 63: return "R_SPARC_TLS_LDM_CALL";
740                 case 64: return "R_SPARC_TLS_LDO_HIX22";
741                 case 65: return "R_SPARC_TLS_LDO_LOX10";
742                 case 66: return "R_SPARC_TLS_LDO_ADD";
743                 case 67: return "R_SPARC_TLS_IE_HI22";
744                 case 68: return "R_SPARC_TLS_IE_LO10";
745                 case 69: return "R_SPARC_TLS_IE_LD";
746                 case 70: return "R_SPARC_TLS_IE_LDX";
747                 case 71: return "R_SPARC_TLS_IE_ADD";
748                 case 72: return "R_SPARC_TLS_LE_HIX22";
749                 case 73: return "R_SPARC_TLS_LE_LOX10";
750                 case 74: return "R_SPARC_TLS_DTPMOD32";
751                 case 75: return "R_SPARC_TLS_DTPMOD64";
752                 case 76: return "R_SPARC_TLS_DTPOFF32";
753                 case 77: return "R_SPARC_TLS_DTPOFF64";
754                 case 78: return "R_SPARC_TLS_TPOFF32";
755                 case 79: return "R_SPARC_TLS_TPOFF64";
756                 default: return "";
757                 }
758         case EM_X86_64:
759                 switch(type) {
760                 case 0: return "R_X86_64_NONE";
761                 case 1: return "R_X86_64_64";
762                 case 2: return "R_X86_64_PC32";
763                 case 3: return "R_X86_64_GOT32";
764                 case 4: return "R_X86_64_PLT32";
765                 case 5: return "R_X86_64_COPY";
766                 case 6: return "R_X86_64_GLOB_DAT";
767                 case 7: return "R_X86_64_JMP_SLOT";
768                 case 8: return "R_X86_64_RELATIVE";
769                 case 9: return "R_X86_64_GOTPCREL";
770                 case 10: return "R_X86_64_32";
771                 case 11: return "R_X86_64_32S";
772                 case 12: return "R_X86_64_16";
773                 case 13: return "R_X86_64_PC16";
774                 case 14: return "R_X86_64_8";
775                 case 15: return "R_X86_64_PC8";
776                 case 16: return "R_X86_64_DTPMOD64";
777                 case 17: return "R_X86_64_DTPOFF64";
778                 case 18: return "R_X86_64_TPOFF64";
779                 case 19: return "R_X86_64_TLSGD";
780                 case 20: return "R_X86_64_TLSLD";
781                 case 21: return "R_X86_64_DTPOFF32";
782                 case 22: return "R_X86_64_GOTTPOFF";
783                 case 23: return "R_X86_64_TPOFF32";
784                 default: return "";
785                 }
786         default: return "";
787         }
788 }
789
790 static void     add_name(struct elfdump *ed, const char *name);
791 static void     elf_print_object(struct elfdump *ed);
792 static void     elf_print_elf(struct elfdump *ed);
793 static void     elf_print_ehdr(struct elfdump *ed);
794 static void     elf_print_phdr(struct elfdump *ed);
795 static void     elf_print_shdr(struct elfdump *ed);
796 static void     elf_print_symtab(struct elfdump *ed, int i);
797 static void     elf_print_symtabs(struct elfdump *ed);
798 static void     elf_print_symver(struct elfdump *ed);
799 static void     elf_print_verdef(struct elfdump *ed, struct section *s);
800 static void     elf_print_verneed(struct elfdump *ed, struct section *s);
801 static void     elf_print_interp(struct elfdump *ed);
802 static void     elf_print_dynamic(struct elfdump *ed);
803 static void     elf_print_rel_entry(struct elfdump *ed, struct section *s,
804     int j, struct rel_entry *r);
805 static void     elf_print_rela(struct elfdump *ed, struct section *s,
806     Elf_Data *data);
807 static void     elf_print_rel(struct elfdump *ed, struct section *s,
808     Elf_Data *data);
809 static void     elf_print_reloc(struct elfdump *ed);
810 static void     elf_print_got(struct elfdump *ed);
811 static void     elf_print_got_section(struct elfdump *ed, struct section *s);
812 static void     elf_print_note(struct elfdump *ed);
813 static void     elf_print_svr4_hash(struct elfdump *ed, struct section *s);
814 static void     elf_print_svr4_hash64(struct elfdump *ed, struct section *s);
815 static void     elf_print_gnu_hash(struct elfdump *ed, struct section *s);
816 static void     elf_print_hash(struct elfdump *ed);
817 static void     elf_print_checksum(struct elfdump *ed);
818 static void     find_gotrel(struct elfdump *ed, struct section *gs,
819     struct rel_entry *got);
820 static struct spec_name *find_name(struct elfdump *ed, const char *name);
821 static const char *get_symbol_name(struct elfdump *ed, int symtab, int i);
822 static const char *get_string(struct elfdump *ed, int strtab, size_t off);
823 static void     get_versym(struct elfdump *ed, int i, uint16_t **vs, int *nvs);
824 static void     load_sections(struct elfdump *ed);
825 static void     unload_sections(struct elfdump *ed);
826 static void     usage(void);
827 #ifdef  USE_LIBARCHIVE_AR
828 static int      ac_detect_ar(int fd);
829 static void     ac_print_ar(struct elfdump *ed, int fd);
830 #else
831 static void     elf_print_ar(struct elfdump *ed, int fd);
832 #endif  /* USE_LIBARCHIVE_AR */
833
834 static struct option elfdump_longopts[] =
835 {
836         { "help",       no_argument,    NULL,   'H' },
837         { "version",    no_argument,    NULL,   'V' },
838         { NULL,         0,              NULL,   0   }
839 };
840
841 int
842 main(int ac, char **av)
843 {
844         struct elfdump          *ed, ed_storage;
845         struct spec_name        *sn;
846         int                      ch, i;
847
848         ed = &ed_storage;
849         memset(ed, 0, sizeof(*ed));
850         STAILQ_INIT(&ed->snl);
851         ed->out = stdout;
852         while ((ch = getopt_long(ac, av, "acdeiGHhknN:prsSvVw:",
853                 elfdump_longopts, NULL)) != -1)
854                 switch (ch) {
855                 case 'a':
856                         ed->options = ED_ALL;
857                         break;
858                 case 'c':
859                         ed->options |= ED_SHDR;
860                         break;
861                 case 'd':
862                         ed->options |= ED_DYN;
863                         break;
864                 case 'e':
865                         ed->options |= ED_EHDR;
866                         break;
867                 case 'i':
868                         ed->options |= ED_INTERP;
869                         break;
870                 case 'G':
871                         ed->options |= ED_GOT;
872                         break;
873                 case 'h':
874                         ed->options |= ED_HASH;
875                         break;
876                 case 'k':
877                         ed->options |= ED_CHECKSUM;
878                         break;
879                 case 'n':
880                         ed->options |= ED_NOTE;
881                         break;
882                 case 'N':
883                         add_name(ed, optarg);
884                         break;
885                 case 'p':
886                         ed->options |= ED_PHDR;
887                         break;
888                 case 'r':
889                         ed->options |= ED_REL;
890                         break;
891                 case 's':
892                         ed->options |= ED_SYMTAB;
893                         break;
894                 case 'S':
895                         ed->flags |= SOLARIS_FMT;
896                         break;
897                 case 'v':
898                         ed->options |= ED_SYMVER;
899                         break;
900                 case 'V':
901                         (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(),
902                             elftc_version());
903                         exit(EXIT_SUCCESS);
904                         break;
905                 case 'w':
906                         if ((ed->out = fopen(optarg, "w")) == NULL)
907                                 err(EXIT_FAILURE, "%s", optarg);
908                         break;
909                 case '?':
910                 case 'H':
911                 default:
912                         usage();
913                 }
914
915         ac -= optind;
916         av += optind;
917
918         if (ed->options == 0)
919                 ed->options = ED_ALL;
920         sn = NULL;
921         if (ed->options & ED_SYMTAB &&
922             (STAILQ_EMPTY(&ed->snl) || (sn = find_name(ed, "ARSYM")) != NULL)) {
923                 ed->flags |= PRINT_ARSYM;
924                 if (sn != NULL) {
925                         STAILQ_REMOVE(&ed->snl, sn, spec_name, sn_list);
926                         if (STAILQ_EMPTY(&ed->snl))
927                                 ed->flags |= ONLY_ARSYM;
928                 }
929         }
930         if (ac == 0)
931                 usage();
932         if (ac > 1)
933                 ed->flags |= PRINT_FILENAME;
934         if (elf_version(EV_CURRENT) == EV_NONE)
935                 errx(EXIT_FAILURE, "ELF library initialization failed: %s",
936                     elf_errmsg(-1));
937
938         for (i = 0; i < ac; i++) {
939                 ed->filename = av[i];
940                 ed->archive = NULL;
941                 elf_print_object(ed);
942         }
943
944         exit(EXIT_SUCCESS);
945 }
946
947 #ifdef USE_LIBARCHIVE_AR
948
949 /* Archive symbol table entry. */
950 struct arsym_entry {
951         char *sym_name;
952         size_t off;
953 };
954
955 /*
956  * Convenient wrapper for general libarchive error handling.
957  */
958 #define AC(CALL) do {                                                   \
959         if ((CALL)) {                                                   \
960                 warnx("%s", archive_error_string(a));                   \
961                 return;                                                 \
962         }                                                               \
963 } while (0)
964
965 /*
966  * Detect an ar(1) archive using libarchive(3).
967  */
968 static int
969 ac_detect_ar(int fd)
970 {
971         struct archive          *a;
972         struct archive_entry    *entry;
973         int                      r;
974
975         r = -1;
976         if ((a = archive_read_new()) == NULL)
977                 return (0);
978         archive_read_support_format_ar(a);
979         if (archive_read_open_fd(a, fd, 10240) == ARCHIVE_OK)
980                 r = archive_read_next_header(a, &entry);
981         archive_read_close(a);
982         archive_read_free(a);
983
984         return (r == ARCHIVE_OK);
985 }
986
987 /*
988  * Dump an ar(1) archive using libarchive(3).
989  */
990 static void
991 ac_print_ar(struct elfdump *ed, int fd)
992 {
993         struct archive          *a;
994         struct archive_entry    *entry;
995         struct arsym_entry      *arsym;
996         const char              *name;
997         char                     idx[10], *b;
998         void                    *buff;
999         size_t                   size;
1000         uint32_t                 cnt;
1001         int                      i, r;
1002
1003         if (lseek(fd, 0, SEEK_SET) == -1)
1004                 err(EXIT_FAILURE, "lseek failed");
1005         if ((a = archive_read_new()) == NULL)
1006                 errx(EXIT_FAILURE, "%s", archive_error_string(a));
1007         archive_read_support_format_ar(a);
1008         AC(archive_read_open_fd(a, fd, 10240));
1009         for(;;) {
1010                 r = archive_read_next_header(a, &entry);
1011                 if (r == ARCHIVE_FATAL)
1012                         errx(EXIT_FAILURE, "%s", archive_error_string(a));
1013                 if (r == ARCHIVE_EOF)
1014                         break;
1015                 if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY)
1016                         warnx("%s", archive_error_string(a));
1017                 if (r == ARCHIVE_RETRY)
1018                         continue;
1019                 name = archive_entry_pathname(entry);
1020                 size = archive_entry_size(entry);
1021                 if (size == 0)
1022                         continue;
1023                 if ((buff = malloc(size)) == NULL) {
1024                         warn("malloc failed");
1025                         continue;
1026                 }
1027                 if (archive_read_data(a, buff, size) != (ssize_t)size) {
1028                         warnx("%s", archive_error_string(a));
1029                         free(buff);
1030                         continue;
1031                 }
1032
1033                 /*
1034                  * Note that when processing arsym via libarchive, there is
1035                  * no way to tell which member a certain symbol belongs to,
1036                  * since we can not just "lseek" to a member offset and read
1037                  * the member header.
1038                  */
1039                 if (!strcmp(name, "/") && ed->flags & PRINT_ARSYM) {
1040                         b = buff;
1041                         cnt = be32dec(b);
1042                         if (cnt == 0) {
1043                                 free(buff);
1044                                 continue;
1045                         }
1046                         arsym = calloc(cnt, sizeof(*arsym));
1047                         if (arsym == NULL)
1048                                 err(EXIT_FAILURE, "calloc failed");
1049                         b += sizeof(uint32_t);
1050                         for (i = 0; (size_t)i < cnt; i++) {
1051                                 arsym[i].off = be32dec(b);
1052                                 b += sizeof(uint32_t);
1053                         }
1054                         for (i = 0; (size_t)i < cnt; i++) {
1055                                 arsym[i].sym_name = b;
1056                                 b += strlen(b) + 1;
1057                         }
1058                         if (ed->flags & SOLARIS_FMT) {
1059                                 PRT("\nSymbol Table: (archive)\n");
1060                                 PRT("     index    offset    symbol\n");
1061                         } else
1062                                 PRT("\nsymbol table (archive):\n");
1063                         for (i = 0; (size_t)i < cnt; i++) {
1064                                 if (ed->flags & SOLARIS_FMT) {
1065                                         snprintf(idx, sizeof(idx), "[%d]", i);
1066                                         PRT("%10s  ", idx);
1067                                         PRT("0x%8.8jx  ",
1068                                             (uintmax_t)arsym[i].off);
1069                                         PRT("%s\n", arsym[i].sym_name);
1070                                 } else {
1071                                         PRT("\nentry: %d\n", i);
1072                                         PRT("\toffset: %#jx\n",
1073                                             (uintmax_t)arsym[i].off);
1074                                         PRT("\tsymbol: %s\n",
1075                                             arsym[i].sym_name);
1076                                 }
1077                         }
1078                         free(arsym);
1079                         free(buff);
1080                         /* No need to continue if we only dump ARSYM. */
1081                         if (ed->flags & ONLY_ARSYM) {
1082                                 AC(archive_read_close(a));
1083                                 AC(archive_read_free(a));
1084                                 return;
1085                         }
1086                         continue;
1087                 }
1088                 if ((ed->elf = elf_memory(buff, size)) == NULL) {
1089                         warnx("elf_memroy() failed: %s",
1090                               elf_errmsg(-1));
1091                         free(buff);
1092                         continue;
1093                 }
1094                 /* Skip non-ELF member. */
1095                 if (elf_kind(ed->elf) == ELF_K_ELF) {
1096                         printf("\n%s(%s):\n", ed->archive, name);
1097                         elf_print_elf(ed);
1098                 }
1099                 elf_end(ed->elf);
1100                 free(buff);
1101         }
1102         AC(archive_read_close(a));
1103         AC(archive_read_free(a));
1104 }
1105
1106 #else  /* USE_LIBARCHIVE_AR */
1107
1108 /*
1109  * Dump an ar(1) archive.
1110  */
1111 static void
1112 elf_print_ar(struct elfdump *ed, int fd)
1113 {
1114         Elf             *e;
1115         Elf_Arhdr       *arh;
1116         Elf_Arsym       *arsym;
1117         Elf_Cmd          cmd;
1118         char             idx[10];
1119         size_t           cnt;
1120         int              i;
1121
1122         ed->ar = ed->elf;
1123
1124         if (ed->flags & PRINT_ARSYM) {
1125                 cnt = 0;
1126                 if ((arsym = elf_getarsym(ed->ar, &cnt)) == NULL) {
1127                         warnx("elf_getarsym failed: %s", elf_errmsg(-1));
1128                         goto print_members;
1129                 }
1130                 if (cnt == 0)
1131                         goto print_members;
1132                 if (ed->flags & SOLARIS_FMT) {
1133                         PRT("\nSymbol Table: (archive)\n");
1134                         PRT("     index    offset    member name and symbol\n");
1135                 } else
1136                         PRT("\nsymbol table (archive):\n");
1137                 for (i = 0; (size_t)i < cnt - 1; i++) {
1138                         if (elf_rand(ed->ar, arsym[i].as_off) !=
1139                             arsym[i].as_off) {
1140                                 warnx("elf_rand failed: %s", elf_errmsg(-1));
1141                                 break;
1142                         }
1143                         if ((e = elf_begin(fd, ELF_C_READ, ed->ar)) == NULL) {
1144                                 warnx("elf_begin failed: %s", elf_errmsg(-1));
1145                                 break;
1146                         }
1147                         if ((arh = elf_getarhdr(e)) == NULL) {
1148                                 warnx("elf_getarhdr failed: %s",
1149                                     elf_errmsg(-1));
1150                                 break;
1151                         }
1152                         if (ed->flags & SOLARIS_FMT) {
1153                                 snprintf(idx, sizeof(idx), "[%d]", i);
1154                                 PRT("%10s  ", idx);
1155                                 PRT("0x%8.8jx  ",
1156                                     (uintmax_t)arsym[i].as_off);
1157                                 PRT("(%s):%s\n", arh->ar_name,
1158                                     arsym[i].as_name);
1159                         } else {
1160                                 PRT("\nentry: %d\n", i);
1161                                 PRT("\toffset: %#jx\n",
1162                                     (uintmax_t)arsym[i].as_off);
1163                                 PRT("\tmember: %s\n", arh->ar_name);
1164                                 PRT("\tsymbol: %s\n", arsym[i].as_name);
1165                         }
1166                         elf_end(e);
1167                 }
1168
1169                 /* No need to continue if we only dump ARSYM. */
1170                 if (ed->flags & ONLY_ARSYM)
1171                         return;
1172         }
1173
1174 print_members:
1175
1176         /* Rewind the archive. */
1177         if (elf_rand(ed->ar, SARMAG) != SARMAG) {
1178                 warnx("elf_rand failed: %s", elf_errmsg(-1));
1179                 return;
1180         }
1181
1182         /* Dump each member of the archive. */
1183         cmd = ELF_C_READ;
1184         while ((ed->elf = elf_begin(fd, cmd, ed->ar)) != NULL) {
1185                 /* Skip non-ELF member. */
1186                 if (elf_kind(ed->elf) == ELF_K_ELF) {
1187                         if ((arh = elf_getarhdr(ed->elf)) == NULL) {
1188                                 warnx("elf_getarhdr failed: %s",
1189                                     elf_errmsg(-1));
1190                                 break;
1191                         }
1192                         printf("\n%s(%s):\n", ed->archive, arh->ar_name);
1193                         elf_print_elf(ed);
1194                 }
1195                 cmd = elf_next(ed->elf);
1196                 elf_end(ed->elf);
1197         }
1198 }
1199
1200 #endif  /* USE_LIBARCHIVE_AR */
1201
1202 /*
1203  * Dump an object. (ELF object or ar(1) archive)
1204  */
1205 static void
1206 elf_print_object(struct elfdump *ed)
1207 {
1208         int fd;
1209
1210         if ((fd = open(ed->filename, O_RDONLY)) == -1) {
1211                 warn("open %s failed", ed->filename);
1212                 return;
1213         }
1214
1215 #ifdef  USE_LIBARCHIVE_AR
1216         if (ac_detect_ar(fd)) {
1217                 ed->archive = ed->filename;
1218                 ac_print_ar(ed, fd);
1219                 return;
1220         }
1221 #endif  /* USE_LIBARCHIVE_AR */
1222
1223         if ((ed->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
1224                 warnx("elf_begin() failed: %s", elf_errmsg(-1));
1225                 return;
1226         }
1227
1228         switch (elf_kind(ed->elf)) {
1229         case ELF_K_NONE:
1230                 warnx("Not an ELF file.");
1231                 return;
1232         case ELF_K_ELF:
1233                 if (ed->flags & PRINT_FILENAME)
1234                         printf("\n%s:\n", ed->filename);
1235                 elf_print_elf(ed);
1236                 break;
1237         case ELF_K_AR:
1238 #ifndef USE_LIBARCHIVE_AR
1239                 ed->archive = ed->filename;
1240                 elf_print_ar(ed, fd);
1241 #endif
1242                 break;
1243         default:
1244                 warnx("Internal: libelf returned unknown elf kind.");
1245                 return;
1246         }
1247
1248         elf_end(ed->elf);
1249 }
1250
1251 /*
1252  * Dump an ELF object.
1253  */
1254 static void
1255 elf_print_elf(struct elfdump *ed)
1256 {
1257
1258         if (gelf_getehdr(ed->elf, &ed->ehdr) == NULL) {
1259                 warnx("gelf_getehdr failed: %s", elf_errmsg(-1));
1260                 return;
1261         }
1262         if ((ed->ec = gelf_getclass(ed->elf)) == ELFCLASSNONE) {
1263                 warnx("gelf_getclass failed: %s", elf_errmsg(-1));
1264                 return;
1265         }
1266
1267         if (ed->options & (ED_SHDR | ED_DYN | ED_REL | ED_GOT | ED_SYMTAB |
1268             ED_SYMVER | ED_NOTE | ED_HASH))
1269                 load_sections(ed);
1270
1271         if (ed->options & ED_EHDR)
1272                 elf_print_ehdr(ed);
1273         if (ed->options & ED_PHDR)
1274                 elf_print_phdr(ed);
1275         if (ed->options & ED_INTERP)
1276                 elf_print_interp(ed);
1277         if (ed->options & ED_SHDR)
1278                 elf_print_shdr(ed);
1279         if (ed->options & ED_DYN)
1280                 elf_print_dynamic(ed);
1281         if (ed->options & ED_REL)
1282                 elf_print_reloc(ed);
1283         if (ed->options & ED_GOT)
1284                 elf_print_got(ed);
1285         if (ed->options & ED_SYMTAB)
1286                 elf_print_symtabs(ed);
1287         if (ed->options & ED_SYMVER)
1288                 elf_print_symver(ed);
1289         if (ed->options & ED_NOTE)
1290                 elf_print_note(ed);
1291         if (ed->options & ED_HASH)
1292                 elf_print_hash(ed);
1293         if (ed->options & ED_CHECKSUM)
1294                 elf_print_checksum(ed);
1295
1296         unload_sections(ed);
1297 }
1298
1299 /*
1300  * Read the section headers from ELF object and store them in the
1301  * internal cache.
1302  */
1303 static void
1304 load_sections(struct elfdump *ed)
1305 {
1306         struct section  *s;
1307         const char      *name;
1308         Elf_Scn         *scn;
1309         GElf_Shdr        sh;
1310         size_t           shstrndx, ndx;
1311         int              elferr;
1312
1313         assert(ed->sl == NULL);
1314
1315         if (!elf_getshnum(ed->elf, &ed->shnum)) {
1316                 warnx("elf_getshnum failed: %s", elf_errmsg(-1));
1317                 return;
1318         }
1319         if (ed->shnum == 0)
1320                 return;
1321         if ((ed->sl = calloc(ed->shnum, sizeof(*ed->sl))) == NULL)
1322                 err(EXIT_FAILURE, "calloc failed");
1323         if (!elf_getshstrndx(ed->elf, &shstrndx)) {
1324                 warnx("elf_getshstrndx failed: %s", elf_errmsg(-1));
1325                 return;
1326         }
1327         if ((scn = elf_getscn(ed->elf, 0)) == NULL) {
1328                 warnx("elf_getscn failed: %s", elf_errmsg(-1));
1329                 return;
1330         }
1331         (void) elf_errno();
1332         do {
1333                 if (gelf_getshdr(scn, &sh) == NULL) {
1334                         warnx("gelf_getshdr failed: %s", elf_errmsg(-1));
1335                         (void) elf_errno();
1336                         continue;
1337                 }
1338                 if ((name = elf_strptr(ed->elf, shstrndx, sh.sh_name)) == NULL) {
1339                         (void) elf_errno();
1340                         name = "ERROR";
1341                 }
1342                 if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF)
1343                         if ((elferr = elf_errno()) != 0) {
1344                                 warnx("elf_ndxscn failed: %s",
1345                                     elf_errmsg(elferr));
1346                                 continue;
1347                         }
1348                 if (ndx >= ed->shnum) {
1349                         warnx("section index of '%s' out of range", name);
1350                         continue;
1351                 }
1352                 s = &ed->sl[ndx];
1353                 s->name = name;
1354                 s->scn = scn;
1355                 s->off = sh.sh_offset;
1356                 s->sz = sh.sh_size;
1357                 s->entsize = sh.sh_entsize;
1358                 s->align = sh.sh_addralign;
1359                 s->type = sh.sh_type;
1360                 s->flags = sh.sh_flags;
1361                 s->addr = sh.sh_addr;
1362                 s->link = sh.sh_link;
1363                 s->info = sh.sh_info;
1364         } while ((scn = elf_nextscn(ed->elf, scn)) != NULL);
1365         elferr = elf_errno();
1366         if (elferr != 0)
1367                 warnx("elf_nextscn failed: %s", elf_errmsg(elferr));
1368 }
1369
1370 /*
1371  * Release section related resources.
1372  */
1373 static void
1374 unload_sections(struct elfdump *ed)
1375 {
1376         if (ed->sl != NULL) {
1377                 free(ed->sl);
1378                 ed->sl = NULL;
1379         }
1380 }
1381
1382 /*
1383  * Add a name to the '-N' name list.
1384  */
1385 static void
1386 add_name(struct elfdump *ed, const char *name)
1387 {
1388         struct spec_name *sn;
1389
1390         if (find_name(ed, name))
1391                 return;
1392         if ((sn = malloc(sizeof(*sn))) == NULL) {
1393                 warn("malloc failed");
1394                 return;
1395         }
1396         sn->name = name;
1397         STAILQ_INSERT_TAIL(&ed->snl, sn, sn_list);
1398 }
1399
1400 /*
1401  * Lookup a name in the '-N' name list.
1402  */
1403 static struct spec_name *
1404 find_name(struct elfdump *ed, const char *name)
1405 {
1406         struct spec_name *sn;
1407
1408         STAILQ_FOREACH(sn, &ed->snl, sn_list) {
1409                 if (!strcmp(sn->name, name))
1410                         return (sn);
1411         }
1412
1413         return (NULL);
1414 }
1415
1416 /*
1417  * Retrieve the name of a symbol using the section index of the symbol
1418  * table and the index of the symbol within that table.
1419  */
1420 static const char *
1421 get_symbol_name(struct elfdump *ed, int symtab, int i)
1422 {
1423         static char      sname[64];
1424         struct section  *s;
1425         const char      *name;
1426         GElf_Sym         sym;
1427         Elf_Data        *data;
1428         int              elferr;
1429
1430         s = &ed->sl[symtab];
1431         if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
1432                 return ("");
1433         (void) elf_errno();
1434         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
1435                 elferr = elf_errno();
1436                 if (elferr != 0)
1437                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
1438                 return ("");
1439         }
1440         if (gelf_getsym(data, i, &sym) != &sym)
1441                 return ("");
1442         if (GELF_ST_TYPE(sym.st_info) == STT_SECTION) {
1443                 if (sym.st_shndx < ed->shnum) {
1444                         snprintf(sname, sizeof(sname), "%s (section)",
1445                             ed->sl[sym.st_shndx].name);
1446                         return (sname);
1447                 } else
1448                         return ("");
1449         }
1450         if ((name = elf_strptr(ed->elf, s->link, sym.st_name)) == NULL)
1451                 return ("");
1452
1453         return (name);
1454 }
1455
1456 /*
1457  * Retrieve a string using string table section index and the string offset.
1458  */
1459 static const char*
1460 get_string(struct elfdump *ed, int strtab, size_t off)
1461 {
1462         const char *name;
1463
1464         if ((name = elf_strptr(ed->elf, strtab, off)) == NULL)
1465                 return ("");
1466
1467         return (name);
1468 }
1469
1470 /*
1471  * Dump the ELF Executable Header.
1472  */
1473 static void
1474 elf_print_ehdr(struct elfdump *ed)
1475 {
1476
1477         if (!STAILQ_EMPTY(&ed->snl))
1478                 return;
1479
1480         if (ed->flags & SOLARIS_FMT) {
1481                 PRT("\nELF Header\n");
1482                 PRT("  ei_magic:   { %#x, %c, %c, %c }\n",
1483                     ed->ehdr.e_ident[0], ed->ehdr.e_ident[1],
1484                     ed->ehdr.e_ident[2], ed->ehdr.e_ident[3]);
1485                 PRT("  ei_class:   %-18s",
1486                     ei_classes[ed->ehdr.e_ident[EI_CLASS]]);
1487                 PRT("  ei_data:      %s\n", ei_data[ed->ehdr.e_ident[EI_DATA]]);
1488                 PRT("  e_machine:  %-18s", e_machines(ed->ehdr.e_machine));
1489                 PRT("  e_version:    %s\n", ei_versions[ed->ehdr.e_version]);
1490                 PRT("  e_type:     %s\n", e_types[ed->ehdr.e_type]);
1491                 PRT("  e_flags:    %18d\n", ed->ehdr.e_flags);
1492                 PRT("  e_entry:    %#18jx", (uintmax_t)ed->ehdr.e_entry);
1493                 PRT("  e_ehsize: %6d", ed->ehdr.e_ehsize);
1494                 PRT("  e_shstrndx:%5d\n", ed->ehdr.e_shstrndx);
1495                 PRT("  e_shoff:    %#18jx", (uintmax_t)ed->ehdr.e_shoff);
1496                 PRT("  e_shentsize: %3d", ed->ehdr.e_shentsize);
1497                 PRT("  e_shnum:   %5d\n", ed->ehdr.e_shnum);
1498                 PRT("  e_phoff:    %#18jx", (uintmax_t)ed->ehdr.e_phoff);
1499                 PRT("  e_phentsize: %3d", ed->ehdr.e_phentsize);
1500                 PRT("  e_phnum:   %5d\n", ed->ehdr.e_phnum);
1501         } else {
1502                 PRT("\nelf header:\n");
1503                 PRT("\n");
1504                 PRT("\te_ident: %s %s %s\n",
1505                     ei_classes[ed->ehdr.e_ident[EI_CLASS]],
1506                     ei_data[ed->ehdr.e_ident[EI_DATA]],
1507                     ei_abis[ed->ehdr.e_ident[EI_OSABI]]);
1508                 PRT("\te_type: %s\n", e_types[ed->ehdr.e_type]);
1509                 PRT("\te_machine: %s\n", e_machines(ed->ehdr.e_machine));
1510                 PRT("\te_version: %s\n", ei_versions[ed->ehdr.e_version]);
1511                 PRT("\te_entry: %#jx\n", (uintmax_t)ed->ehdr.e_entry);
1512                 PRT("\te_phoff: %ju\n", (uintmax_t)ed->ehdr.e_phoff);
1513                 PRT("\te_shoff: %ju\n", (uintmax_t) ed->ehdr.e_shoff);
1514                 PRT("\te_flags: %u\n", ed->ehdr.e_flags);
1515                 PRT("\te_ehsize: %u\n", ed->ehdr.e_ehsize);
1516                 PRT("\te_phentsize: %u\n", ed->ehdr.e_phentsize);
1517                 PRT("\te_phnum: %u\n", ed->ehdr.e_phnum);
1518                 PRT("\te_shentsize: %u\n", ed->ehdr.e_shentsize);
1519                 PRT("\te_shnum: %u\n", ed->ehdr.e_shnum);
1520                 PRT("\te_shstrndx: %u\n", ed->ehdr.e_shstrndx);
1521         }
1522 }
1523
1524 /*
1525  * Dump the ELF Program Header Table.
1526  */
1527 static void
1528 elf_print_phdr(struct elfdump *ed)
1529 {
1530         GElf_Phdr        ph;
1531         size_t           phnum;
1532         int              header, i;
1533
1534         if (elf_getphnum(ed->elf, &phnum) == 0) {
1535                 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
1536                 return;
1537         }
1538         header = 0;
1539         for (i = 0; (u_int64_t) i < phnum; i++) {
1540                 if (gelf_getphdr(ed->elf, i, &ph) != &ph) {
1541                         warnx("elf_getphdr failed: %s", elf_errmsg(-1));
1542                         continue;
1543                 }
1544                 if (!STAILQ_EMPTY(&ed->snl) &&
1545                     find_name(ed, p_types[ph.p_type & 0x7]) == NULL)
1546                         continue;
1547                 if (ed->flags & SOLARIS_FMT) {
1548                         PRT("\nProgram Header[%d]:\n", i);
1549                         PRT("    p_vaddr:      %#-14jx", (uintmax_t)ph.p_vaddr);
1550                         PRT("  p_flags:    [ %s ]\n", p_flags[ph.p_flags]);
1551                         PRT("    p_paddr:      %#-14jx", (uintmax_t)ph.p_paddr);
1552                         PRT("  p_type:     [ %s ]\n", p_types[ph.p_type & 0x7]);
1553                         PRT("    p_filesz:     %#-14jx",
1554                             (uintmax_t)ph.p_filesz);
1555                         PRT("  p_memsz:    %#jx\n", (uintmax_t)ph.p_memsz);
1556                         PRT("    p_offset:     %#-14jx",
1557                             (uintmax_t)ph.p_offset);
1558                         PRT("  p_align:    %#jx\n", (uintmax_t)ph.p_align);
1559                 } else {
1560                         if (!header) {
1561                                 PRT("\nprogram header:\n");
1562                                 header = 1;
1563                         }
1564                         PRT("\n");
1565                         PRT("entry: %d\n", i);
1566                         PRT("\tp_type: %s\n", p_types[ph.p_type & 0x7]);
1567                         PRT("\tp_offset: %ju\n", (uintmax_t)ph.p_offset);
1568                         PRT("\tp_vaddr: %#jx\n", (uintmax_t)ph.p_vaddr);
1569                         PRT("\tp_paddr: %#jx\n", (uintmax_t)ph.p_paddr);
1570                         PRT("\tp_filesz: %ju\n", (uintmax_t)ph.p_filesz);
1571                         PRT("\tp_memsz: %ju\n", (uintmax_t)ph.p_memsz);
1572                         PRT("\tp_flags: %s\n", p_flags[ph.p_flags]);
1573                         PRT("\tp_align: %ju\n", (uintmax_t)ph.p_align);
1574                 }
1575         }
1576 }
1577
1578 /*
1579  * Dump the ELF Section Header Table.
1580  */
1581 static void
1582 elf_print_shdr(struct elfdump *ed)
1583 {
1584         struct section *s;
1585         int i;
1586
1587         if (!STAILQ_EMPTY(&ed->snl))
1588                 return;
1589
1590         if ((ed->flags & SOLARIS_FMT) == 0)
1591                 PRT("\nsection header:\n");
1592         for (i = 0; (size_t)i < ed->shnum; i++) {
1593                 s = &ed->sl[i];
1594                 if (ed->flags & SOLARIS_FMT) {
1595                         if (i == 0)
1596                                 continue;
1597                         PRT("\nSection Header[%d]:", i);
1598                         PRT("  sh_name: %s\n", s->name);
1599                         PRT("    sh_addr:      %#-14jx", (uintmax_t)s->addr);
1600                         if (s->flags != 0)
1601                                 PRT("  sh_flags:   [ %s ]\n", sh_flags(s->flags));
1602                         else
1603                                 PRT("  sh_flags:   0\n");
1604                         PRT("    sh_size:      %#-14jx", (uintmax_t)s->sz);
1605                         PRT("  sh_type:    [ %s ]\n", sh_types(s->type));
1606                         PRT("    sh_offset:    %#-14jx", (uintmax_t)s->off);
1607                         PRT("  sh_entsize: %#jx\n", (uintmax_t)s->entsize);
1608                         PRT("    sh_link:      %-14u", s->link);
1609                         PRT("  sh_info:    %u\n", s->info);
1610                         PRT("    sh_addralign: %#jx\n", (uintmax_t)s->align);
1611                 } else {
1612                         PRT("\n");
1613                         PRT("entry: %ju\n", (uintmax_t)i);
1614                         PRT("\tsh_name: %s\n", s->name);
1615                         PRT("\tsh_type: %s\n", sh_types(s->type));
1616                         PRT("\tsh_flags: %s\n", sh_flags(s->flags));
1617                         PRT("\tsh_addr: %#jx\n", (uintmax_t)s->addr);
1618                         PRT("\tsh_offset: %ju\n", (uintmax_t)s->off);
1619                         PRT("\tsh_size: %ju\n", (uintmax_t)s->sz);
1620                         PRT("\tsh_link: %u\n", s->link);
1621                         PRT("\tsh_info: %u\n", s->info);
1622                         PRT("\tsh_addralign: %ju\n", (uintmax_t)s->align);
1623                         PRT("\tsh_entsize: %ju\n", (uintmax_t)s->entsize);
1624                 }
1625         }
1626 }
1627
1628 /*
1629  * Retrieve the content of the corresponding SHT_SUNW_versym section for
1630  * a symbol table section.
1631  */
1632 static void
1633 get_versym(struct elfdump *ed, int i, uint16_t **vs, int *nvs)
1634 {
1635         struct section  *s;
1636         Elf_Data        *data;
1637         int              j, elferr;
1638
1639         s = NULL;
1640         for (j = 0; (size_t)j < ed->shnum; j++) {
1641                 s = &ed->sl[j];
1642                 if (s->type == SHT_SUNW_versym && s->link == (uint32_t)i)
1643                         break;
1644         }
1645         if ((size_t)j >= ed->shnum) {
1646                 *vs = NULL;
1647                 return;
1648         }
1649         (void) elf_errno();
1650         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
1651                 elferr = elf_errno();
1652                 if (elferr != 0)
1653                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
1654                 *vs = NULL;
1655                 return;
1656         }
1657
1658         *vs = data->d_buf;
1659         *nvs = data->d_size / s->entsize;
1660 }
1661
1662 /*
1663  * Dump the symbol table section.
1664  */
1665 static void
1666 elf_print_symtab(struct elfdump *ed, int i)
1667 {
1668         struct section  *s;
1669         const char      *name;
1670         uint16_t        *vs;
1671         char             idx[10];
1672         Elf_Data        *data;
1673         GElf_Sym         sym;
1674         int              len, j, elferr, nvs;
1675
1676         s = &ed->sl[i];
1677         if (ed->flags & SOLARIS_FMT)
1678                 PRT("\nSymbol Table Section:  %s\n", s->name);
1679         else
1680                 PRT("\nsymbol table (%s):\n", s->name);
1681         (void) elf_errno();
1682         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
1683                 elferr = elf_errno();
1684                 if (elferr != 0)
1685                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
1686                 return;
1687         }
1688         vs = NULL;
1689         nvs = 0;
1690         len = data->d_size / s->entsize;
1691         if (ed->flags & SOLARIS_FMT) {
1692                 if (ed->ec == ELFCLASS32)
1693                         PRT("     index    value       ");
1694                 else
1695                         PRT("     index        value           ");
1696                 PRT("size     type bind oth ver shndx       name\n");
1697                 get_versym(ed, i, &vs, &nvs);
1698                 if (vs != NULL && nvs != len) {
1699                         warnx("#symbol not equal to #versym");
1700                         vs = NULL;
1701                 }
1702         }
1703         for (j = 0; j < len; j++) {
1704                 if (gelf_getsym(data, j, &sym) != &sym) {
1705                         warnx("gelf_getsym failed: %s", elf_errmsg(-1));
1706                         continue;
1707                 }
1708                 name = get_string(ed, s->link, sym.st_name);
1709                 if (ed->flags & SOLARIS_FMT) {
1710                         snprintf(idx, sizeof(idx), "[%d]", j);
1711                         if (ed->ec == ELFCLASS32)
1712                                 PRT("%10s  ", idx);
1713                         else
1714                                 PRT("%10s      ", idx);
1715                         PRT("0x%8.8jx ", (uintmax_t)sym.st_value);
1716                         if (ed->ec == ELFCLASS32)
1717                                 PRT("0x%8.8jx  ", (uintmax_t)sym.st_size);
1718                         else
1719                                 PRT("0x%12.12jx  ", (uintmax_t)sym.st_size);
1720                         PRT("%s ", st_types_S[GELF_ST_TYPE(sym.st_info)]);
1721                         PRT("%s  ", st_bindings_S[GELF_ST_BIND(sym.st_info)]);
1722                         PRT("%c  ", st_others[sym.st_other]);
1723                         PRT("%3u ", (vs == NULL ? 0 : vs[j]));
1724                         PRT("%-11.11s ", sh_name(ed, sym.st_shndx));
1725                         PRT("%s\n", name);
1726                 } else {
1727                         PRT("\nentry: %d\n", j);
1728                         PRT("\tst_name: %s\n", name);
1729                         PRT("\tst_value: %#jx\n", (uintmax_t)sym.st_value);
1730                         PRT("\tst_size: %ju\n", (uintmax_t)sym.st_size);
1731                         PRT("\tst_info: %s %s\n",
1732                             st_types[GELF_ST_TYPE(sym.st_info)],
1733                             st_bindings[GELF_ST_BIND(sym.st_info)]);
1734                         PRT("\tst_shndx: %ju\n", (uintmax_t)sym.st_shndx);
1735                 }
1736         }
1737 }
1738
1739 /*
1740  * Dump the symbol tables. (.dynsym and .symtab)
1741  */
1742 static void
1743 elf_print_symtabs(struct elfdump *ed)
1744 {
1745         int i;
1746
1747         for (i = 0; (size_t)i < ed->shnum; i++)
1748                 if ((ed->sl[i].type == SHT_SYMTAB ||
1749                     ed->sl[i].type == SHT_DYNSYM) &&
1750                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, ed->sl[i].name)))
1751                         elf_print_symtab(ed, i);
1752 }
1753
1754 /*
1755  * Dump the content of .dynamic section.
1756  */
1757 static void
1758 elf_print_dynamic(struct elfdump *ed)
1759 {
1760         struct section  *s;
1761         const char      *name;
1762         char             idx[10];
1763         Elf_Data        *data;
1764         GElf_Dyn         dyn;
1765         int              elferr, i, len;
1766
1767         s = NULL;
1768         for (i = 0; (size_t)i < ed->shnum; i++) {
1769                 s = &ed->sl[i];
1770                 if (s->type == SHT_DYNAMIC &&
1771                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name)))
1772                         break;
1773         }
1774         if ((size_t)i >= ed->shnum)
1775                 return;
1776
1777         if (ed->flags & SOLARIS_FMT) {
1778                 PRT("Dynamic Section:  %s\n", s->name);
1779                 PRT("     index  tag               value\n");
1780         } else
1781                 PRT("\ndynamic:\n");
1782         (void) elf_errno();
1783         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
1784                 elferr = elf_errno();
1785                 if (elferr != 0)
1786                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
1787                 return;
1788         }
1789         len = data->d_size / s->entsize;
1790         for (i = 0; i < len; i++) {
1791                 if (gelf_getdyn(data, i, &dyn) != &dyn) {
1792                         warnx("gelf_getdyn failed: %s", elf_errmsg(-1));
1793                         continue;
1794                 }
1795
1796                 if (ed->flags & SOLARIS_FMT) {
1797                         snprintf(idx, sizeof(idx), "[%d]", i);
1798                         PRT("%10s  %-16s ", idx, d_tags(dyn.d_tag));
1799                 } else {
1800                         PRT("\n");
1801                         PRT("entry: %d\n", i);
1802                         PRT("\td_tag: %s\n", d_tags(dyn.d_tag));
1803                 }
1804                 switch(dyn.d_tag) {
1805                 case DT_NEEDED:
1806                 case DT_SONAME:
1807                 case DT_RPATH:
1808                         if ((name = elf_strptr(ed->elf, s->link,
1809                                     dyn.d_un.d_val)) == NULL)
1810                                 name = "";
1811                         if (ed->flags & SOLARIS_FMT)
1812                                 PRT("%#-16jx %s\n", (uintmax_t)dyn.d_un.d_val,
1813                                     name);
1814                         else
1815                                 PRT("\td_val: %s\n", name);
1816                         break;
1817                 case DT_PLTRELSZ:
1818                 case DT_RELA:
1819                 case DT_RELASZ:
1820                 case DT_RELAENT:
1821                 case DT_RELACOUNT:
1822                 case DT_STRSZ:
1823                 case DT_SYMENT:
1824                 case DT_RELSZ:
1825                 case DT_RELENT:
1826                 case DT_PLTREL:
1827                 case DT_VERDEF:
1828                 case DT_VERDEFNUM:
1829                 case DT_VERNEED:
1830                 case DT_VERNEEDNUM:
1831                 case DT_VERSYM:
1832                         if (ed->flags & SOLARIS_FMT)
1833                                 PRT("%#jx\n", (uintmax_t)dyn.d_un.d_val);
1834                         else
1835                                 PRT("\td_val: %ju\n",
1836                                     (uintmax_t)dyn.d_un.d_val);
1837                         break;
1838                 case DT_PLTGOT:
1839                 case DT_HASH:
1840                 case DT_GNU_HASH:
1841                 case DT_STRTAB:
1842                 case DT_SYMTAB:
1843                 case DT_INIT:
1844                 case DT_FINI:
1845                 case DT_REL:
1846                 case DT_JMPREL:
1847                 case DT_DEBUG:
1848                         if (ed->flags & SOLARIS_FMT)
1849                                 PRT("%#jx\n", (uintmax_t)dyn.d_un.d_ptr);
1850                         else
1851                                 PRT("\td_ptr: %#jx\n",
1852                                     (uintmax_t)dyn.d_un.d_ptr);
1853                         break;
1854                 case DT_NULL:
1855                 case DT_SYMBOLIC:
1856                 case DT_TEXTREL:
1857                 default:
1858                         if (ed->flags & SOLARIS_FMT)
1859                                 PRT("\n");
1860                         break;
1861                 }
1862         }
1863 }
1864
1865 /*
1866  * Dump a .rel/.rela section entry.
1867  */
1868 static void
1869 elf_print_rel_entry(struct elfdump *ed, struct section *s, int j,
1870     struct rel_entry *r)
1871 {
1872
1873         if (ed->flags & SOLARIS_FMT) {
1874                 PRT("        %-23s ", r_type(ed->ehdr.e_machine,
1875                         GELF_R_TYPE(r->u_r.rel.r_info)));
1876                 PRT("%#12jx ", (uintmax_t)r->u_r.rel.r_offset);
1877                 if (r->type == SHT_RELA)
1878                         PRT("%10jd  ", (intmax_t)r->u_r.rela.r_addend);
1879                 else
1880                         PRT("    ");
1881                 PRT("%-14s ", s->name);
1882                 PRT("%s\n", r->symn);
1883         } else {
1884                 PRT("\n");
1885                 PRT("entry: %d\n", j);
1886                 PRT("\tr_offset: %#jx\n", (uintmax_t)r->u_r.rel.r_offset);
1887                 if (ed->ec == ELFCLASS32)
1888                         PRT("\tr_info: %#jx\n", (uintmax_t)
1889                             ELF32_R_INFO(ELF64_R_SYM(r->u_r.rel.r_info),
1890                             ELF64_R_TYPE(r->u_r.rel.r_info)));
1891                 else
1892                         PRT("\tr_info: %#jx\n", (uintmax_t)r->u_r.rel.r_info);
1893                 if (r->type == SHT_RELA)
1894                         PRT("\tr_addend: %jd\n",
1895                             (intmax_t)r->u_r.rela.r_addend);
1896         }
1897 }
1898
1899 /*
1900  * Dump a relocation section of type SHT_RELA.
1901  */
1902 static void
1903 elf_print_rela(struct elfdump *ed, struct section *s, Elf_Data *data)
1904 {
1905         struct rel_entry        r;
1906         int                     j, len;
1907
1908         if (ed->flags & SOLARIS_FMT) {
1909                 PRT("\nRelocation Section:  %s\n", s->name);
1910                 PRT("        type                          offset     "
1911                     "addend  section        with respect to\n");
1912         } else
1913                 PRT("\nrelocation with addend (%s):\n", s->name);
1914         r.type = SHT_RELA;
1915         len = data->d_size / s->entsize;
1916         for (j = 0; j < len; j++) {
1917                 if (gelf_getrela(data, j, &r.u_r.rela) != &r.u_r.rela) {
1918                         warnx("gelf_getrela failed: %s",
1919                             elf_errmsg(-1));
1920                         continue;
1921                 }
1922                 r.symn = get_symbol_name(ed, s->link,
1923                     GELF_R_SYM(r.u_r.rela.r_info));
1924                 elf_print_rel_entry(ed, s, j, &r);
1925         }
1926 }
1927
1928 /*
1929  * Dump a relocation section of type SHT_REL.
1930  */
1931 static void
1932 elf_print_rel(struct elfdump *ed, struct section *s, Elf_Data *data)
1933 {
1934         struct rel_entry        r;
1935         int                     j, len;
1936
1937         if (ed->flags & SOLARIS_FMT) {
1938                 PRT("\nRelocation Section:  %s\n", s->name);
1939                 PRT("        type                          offset     "
1940                     "section        with respect to\n");
1941         } else
1942                 PRT("\nrelocation (%s):\n", s->name);
1943         r.type = SHT_REL;
1944         len = data->d_size / s->entsize;
1945         for (j = 0; j < len; j++) {
1946                 if (gelf_getrel(data, j, &r.u_r.rel) != &r.u_r.rel) {
1947                         warnx("gelf_getrel failed: %s", elf_errmsg(-1));
1948                         continue;
1949                 }
1950                 r.symn = get_symbol_name(ed, s->link,
1951                     GELF_R_SYM(r.u_r.rel.r_info));
1952                 elf_print_rel_entry(ed, s, j, &r);
1953         }
1954 }
1955
1956 /*
1957  * Dump relocation sections.
1958  */
1959 static void
1960 elf_print_reloc(struct elfdump *ed)
1961 {
1962         struct section  *s;
1963         Elf_Data        *data;
1964         int              i, elferr;
1965
1966         for (i = 0; (size_t)i < ed->shnum; i++) {
1967                 s = &ed->sl[i];
1968                 if ((s->type == SHT_REL || s->type == SHT_RELA) &&
1969                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) {
1970                         (void) elf_errno();
1971                         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
1972                                 elferr = elf_errno();
1973                                 if (elferr != 0)
1974                                         warnx("elf_getdata failed: %s",
1975                                             elf_errmsg(elferr));
1976                                 continue;
1977                         }
1978                         if (s->type == SHT_REL)
1979                                 elf_print_rel(ed, s, data);
1980                         else
1981                                 elf_print_rela(ed, s, data);
1982                 }
1983         }
1984 }
1985
1986 /*
1987  * Dump the content of PT_INTERP segment.
1988  */
1989 static void
1990 elf_print_interp(struct elfdump *ed)
1991 {
1992         const char *s;
1993         GElf_Phdr phdr;
1994         size_t phnum;
1995         int i;
1996
1997         if (!STAILQ_EMPTY(&ed->snl) && find_name(ed, "PT_INTERP") == NULL)
1998                 return;
1999
2000         if ((s = elf_rawfile(ed->elf, NULL)) == NULL) {
2001                 warnx("elf_rawfile failed: %s", elf_errmsg(-1));
2002                 return;
2003         }
2004         if (!elf_getphnum(ed->elf, &phnum)) {
2005                 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
2006                 return;
2007         }
2008         for (i = 0; (size_t)i < phnum; i++) {
2009                 if (gelf_getphdr(ed->elf, i, &phdr) != &phdr) {
2010                         warnx("elf_getphdr failed: %s", elf_errmsg(-1));
2011                         continue;
2012                 }
2013                 if (phdr.p_type == PT_INTERP) {
2014                         PRT("\ninterp:\n");
2015                         PRT("\t%s\n", s + phdr.p_offset);
2016                 }
2017         }
2018 }
2019
2020 /*
2021  * Search the relocation sections for entries refering to the .got section.
2022  */
2023 static void
2024 find_gotrel(struct elfdump *ed, struct section *gs, struct rel_entry *got)
2025 {
2026         struct section          *s;
2027         struct rel_entry         r;
2028         Elf_Data                *data;
2029         int                      elferr, i, j, k, len;
2030
2031         for(i = 0; (size_t)i < ed->shnum; i++) {
2032                 s = &ed->sl[i];
2033                 if (s->type != SHT_REL && s->type != SHT_RELA)
2034                         continue;
2035                 (void) elf_errno();
2036                 if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2037                         elferr = elf_errno();
2038                         if (elferr != 0)
2039                                 warnx("elf_getdata failed: %s",
2040                                     elf_errmsg(elferr));
2041                         return;
2042                 }
2043                 memset(&r, 0, sizeof(struct rel_entry));
2044                 r.type = s->type;
2045                 len = data->d_size / s->entsize;
2046                 for (j = 0; j < len; j++) {
2047                         if (s->type == SHT_REL) {
2048                                 if (gelf_getrel(data, j, &r.u_r.rel) !=
2049                                     &r.u_r.rel) {
2050                                         warnx("gelf_getrel failed: %s",
2051                                             elf_errmsg(-1));
2052                                         continue;
2053                                 }
2054                         } else {
2055                                 if (gelf_getrela(data, j, &r.u_r.rela) !=
2056                                     &r.u_r.rela) {
2057                                         warnx("gelf_getrel failed: %s",
2058                                             elf_errmsg(-1));
2059                                         continue;
2060                                 }
2061                         }
2062                         if (r.u_r.rel.r_offset >= gs->addr &&
2063                             r.u_r.rel.r_offset < gs->addr + gs->sz) {
2064                                 r.symn = get_symbol_name(ed, s->link,
2065                                     GELF_R_SYM(r.u_r.rel.r_info));
2066                                 k = (r.u_r.rel.r_offset - gs->addr) /
2067                                     gs->entsize;
2068                                 memcpy(&got[k], &r, sizeof(struct rel_entry));
2069                         }
2070                 }
2071         }
2072 }
2073
2074 static void
2075 elf_print_got_section(struct elfdump *ed, struct section *s)
2076 {
2077         struct rel_entry        *got;
2078         Elf_Data                *data, dst;
2079         int                      elferr, i, len;
2080
2081         if (s->entsize == 0) {
2082                 /* XXX IA64 GOT section generated by gcc has entry size 0. */
2083                 if (s->align != 0)
2084                         s->entsize = s->align;
2085                 else
2086                         return;
2087         }
2088
2089         if (ed->flags & SOLARIS_FMT)
2090                 PRT("\nGlobal Offset Table Section:  %s  (%jd entries)\n",
2091                     s->name, s->sz / s->entsize);
2092         else
2093                 PRT("\nglobal offset table: %s\n", s->name);
2094         (void) elf_errno();
2095         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2096                 elferr = elf_errno();
2097                 if (elferr != 0)
2098                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
2099                 return;
2100         }
2101
2102         /*
2103          * GOT section has section type SHT_PROGBITS, thus libelf treats it as
2104          * byte stream and will not perfrom any translation on it. As a result,
2105          * an exlicit call to gelf_xlatetom is needed here. Depends on arch,
2106          * GOT section should be translated to either WORD or XWORD.
2107          */
2108         if (ed->ec == ELFCLASS32)
2109                 data->d_type = ELF_T_WORD;
2110         else
2111                 data->d_type = ELF_T_XWORD;
2112         memcpy(&dst, data, sizeof(Elf_Data));
2113         if (gelf_xlatetom(ed->elf, &dst, data, ed->ehdr.e_ident[EI_DATA]) !=
2114             &dst) {
2115                 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
2116                 return;
2117         }
2118         len = dst.d_size / s->entsize;
2119         if (ed->flags & SOLARIS_FMT) {
2120                 /*
2121                  * In verbose/Solaris mode, we search the relocation sections
2122                  * and try to find the corresponding reloc entry for each GOT
2123                  * section entry.
2124                  */
2125                 if ((got = calloc(len, sizeof(struct rel_entry))) == NULL)
2126                         err(EXIT_FAILURE, "calloc failed");
2127                 find_gotrel(ed, s, got);
2128                 if (ed->ec == ELFCLASS32) {
2129                         PRT(" ndx     addr      value    reloc              ");
2130                         PRT("addend   symbol\n");
2131                 } else {
2132                         PRT(" ndx     addr              value             ");
2133                         PRT("reloc              addend       symbol\n");
2134                 }
2135                 for(i = 0; i < len; i++) {
2136                         PRT("[%5.5d]  ", i);
2137                         if (ed->ec == ELFCLASS32) {
2138                                 PRT("%-8.8jx  ", s->addr + i * s->entsize);
2139                                 PRT("%-8.8x ", *((uint32_t *)dst.d_buf + i));
2140                         } else {
2141                                 PRT("%-16.16jx  ", s->addr + i * s->entsize);
2142                                 PRT("%-16.16jx  ", *((uint64_t *)dst.d_buf + i));
2143                         }
2144                         PRT("%-18s ", r_type(ed->ehdr.e_machine,
2145                                 GELF_R_TYPE(got[i].u_r.rel.r_info)));
2146                         if (ed->ec == ELFCLASS32)
2147                                 PRT("%-8.8jd ",
2148                                     (intmax_t)got[i].u_r.rela.r_addend);
2149                         else
2150                                 PRT("%-12.12jd ",
2151                                     (intmax_t)got[i].u_r.rela.r_addend);
2152                         if (got[i].symn == NULL)
2153                                 got[i].symn = "";
2154                         PRT("%s\n", got[i].symn);
2155                 }
2156                 free(got);
2157         } else {
2158                 for(i = 0; i < len; i++) {
2159                         PRT("\nentry: %d\n", i);
2160                         if (ed->ec == ELFCLASS32)
2161                                 PRT("\t%#x\n", *((uint32_t *)dst.d_buf + i));
2162                         else
2163                                 PRT("\t%#jx\n", *((uint64_t *)dst.d_buf + i));
2164                 }
2165         }
2166 }
2167
2168 /*
2169  * Dump the content of Global Offset Table section.
2170  */
2171 static void
2172 elf_print_got(struct elfdump *ed)
2173 {
2174         struct section  *s;
2175         int              i;
2176
2177         if (!STAILQ_EMPTY(&ed->snl))
2178                 return;
2179
2180         s = NULL;
2181         for (i = 0; (size_t)i < ed->shnum; i++) {
2182                 s = &ed->sl[i];
2183                 if (s->name && !strncmp(s->name, ".got", 4) &&
2184                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name)))
2185                         elf_print_got_section(ed, s);
2186         }
2187 }
2188
2189 /*
2190  * Dump the content of .note.ABI-tag section.
2191  */
2192 static void
2193 elf_print_note(struct elfdump *ed)
2194 {
2195         struct section  *s;
2196         Elf_Data        *data;
2197         Elf_Note        *en;
2198         uint32_t         namesz;
2199         uint32_t         descsz;
2200         uint32_t         desc;
2201         size_t           count;
2202         int              elferr, i;
2203         char            *src, idx[10];
2204
2205         s = NULL;
2206         for (i = 0; (size_t)i < ed->shnum; i++) {
2207                 s = &ed->sl[i];
2208                 if (s->type == SHT_NOTE && s->name &&
2209                     !strcmp(s->name, ".note.ABI-tag") &&
2210                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name)))
2211                         break;
2212         }
2213         if ((size_t)i >= ed->shnum)
2214                 return;
2215         if (ed->flags & SOLARIS_FMT)
2216                 PRT("\nNote Section:  %s\n", s->name);
2217         else
2218                 PRT("\nnote (%s):\n", s->name);
2219         (void) elf_errno();
2220         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2221                 elferr = elf_errno();
2222                 if (elferr != 0)
2223                         warnx("elf_getdata failed: %s", elf_errmsg(elferr));
2224                 return;
2225         }
2226         src = data->d_buf;
2227         count = data->d_size;
2228         while (count > sizeof(Elf_Note)) {
2229                 en = (Elf_Note *) (uintptr_t) src;
2230                 namesz = en->n_namesz;
2231                 descsz = en->n_descsz;
2232                 src += sizeof(Elf_Note);
2233                 count -= sizeof(Elf_Note);
2234                 if (ed->flags & SOLARIS_FMT) {
2235                         PRT("\n    type   %#x\n", en->n_type);
2236                         PRT("    namesz %#x:\n", en->n_namesz);
2237                         PRT("%s\n", src);
2238                 } else
2239                         PRT("\t%s ", src);
2240                 src += roundup2(namesz, 4);
2241                 count -= roundup2(namesz, 4);
2242
2243                 /*
2244                  * Note that we dump the whole desc part if we're in
2245                  * "Solaris mode", while in the normal mode, we only look
2246                  * at the first 4 bytes (a 32bit word) of the desc, i.e,
2247                  * we assume that it's always a FreeBSD version number.
2248                  */
2249                 if (ed->flags & SOLARIS_FMT) {
2250                         PRT("    descsz %#x:", en->n_descsz);
2251                         for (i = 0; (uint32_t)i < descsz; i++) {
2252                                 if ((i & 0xF) == 0) {
2253                                         snprintf(idx, sizeof(idx), "desc[%d]",
2254                                             i);
2255                                         PRT("\n      %-9s", idx);
2256                                 } else if ((i & 0x3) == 0)
2257                                         PRT("  ");
2258                                 PRT(" %2.2x", src[i]);
2259                         }
2260                         PRT("\n");
2261                 } else {
2262                         if (ed->ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
2263                                 desc = be32dec(src);
2264                         else
2265                                 desc = le32dec(src);
2266                         PRT("%d\n", desc);
2267                 }
2268                 src += roundup2(descsz, 4);
2269                 count -= roundup2(descsz, 4);
2270         }
2271 }
2272
2273 /*
2274  * Dump a hash table.
2275  */
2276 static void
2277 elf_print_svr4_hash(struct elfdump *ed, struct section *s)
2278 {
2279         Elf_Data        *data;
2280         uint32_t        *buf;
2281         uint32_t        *bucket, *chain;
2282         uint32_t         nbucket, nchain;
2283         uint32_t        *bl, *c, maxl, total;
2284         int              i, j, first, elferr;
2285         char             idx[10];
2286
2287         if (ed->flags & SOLARIS_FMT)
2288                 PRT("\nHash Section:  %s\n", s->name);
2289         else
2290                 PRT("\nhash table (%s):\n", s->name);
2291         (void) elf_errno();
2292         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2293                 elferr = elf_errno();
2294                 if (elferr != 0)
2295                         warnx("elf_getdata failed: %s",
2296                             elf_errmsg(elferr));
2297                 return;
2298         }
2299         if (data->d_size < 2 * sizeof(uint32_t)) {
2300                 warnx(".hash section too small");
2301                 return;
2302         }
2303         buf = data->d_buf;
2304         nbucket = buf[0];
2305         nchain = buf[1];
2306         if (nbucket <= 0 || nchain <= 0) {
2307                 warnx("Malformed .hash section");
2308                 return;
2309         }
2310         if (data->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
2311                 warnx("Malformed .hash section");
2312                 return;
2313         }
2314         bucket = &buf[2];
2315         chain = &buf[2 + nbucket];
2316
2317         if (ed->flags & SOLARIS_FMT) {
2318                 maxl = 0;
2319                 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
2320                         err(EXIT_FAILURE, "calloc failed");
2321                 for (i = 0; (uint32_t)i < nbucket; i++)
2322                         for (j = bucket[i]; j > 0 && (uint32_t)j < nchain;
2323                              j = chain[j])
2324                                 if (++bl[i] > maxl)
2325                                         maxl = bl[i];
2326                 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
2327                         err(EXIT_FAILURE, "calloc failed");
2328                 for (i = 0; (uint32_t)i < nbucket; i++)
2329                         c[bl[i]]++;
2330                 PRT("    bucket    symndx    name\n");
2331                 for (i = 0; (uint32_t)i < nbucket; i++) {
2332                         first = 1;
2333                         for (j = bucket[i]; j > 0 && (uint32_t)j < nchain;
2334                              j = chain[j]) {
2335                                 if (first) {
2336                                         PRT("%10d  ", i);
2337                                         first = 0;
2338                                 } else
2339                                         PRT("            ");
2340                                 snprintf(idx, sizeof(idx), "[%d]", j);
2341                                 PRT("%-10s  ", idx);
2342                                 PRT("%s\n", get_symbol_name(ed, s->link, j));
2343                         }
2344                 }
2345                 PRT("\n");
2346                 total = 0;
2347                 for (i = 0; (uint32_t)i <= maxl; i++) {
2348                         total += c[i] * i;
2349                         PRT("%10u  buckets contain %8d symbols\n", c[i], i);
2350                 }
2351                 PRT("%10u  buckets         %8u symbols (globals)\n", nbucket,
2352                     total);
2353         } else {
2354                 PRT("\nnbucket: %u\n", nbucket);
2355                 PRT("nchain: %u\n\n", nchain);
2356                 for (i = 0; (uint32_t)i < nbucket; i++)
2357                         PRT("bucket[%d]:\n\t%u\n\n", i, bucket[i]);
2358                 for (i = 0; (uint32_t)i < nchain; i++)
2359                         PRT("chain[%d]:\n\t%u\n\n", i, chain[i]);
2360         }
2361 }
2362
2363 /*
2364  * Dump a 64bit hash table.
2365  */
2366 static void
2367 elf_print_svr4_hash64(struct elfdump *ed, struct section *s)
2368 {
2369         Elf_Data        *data, dst;
2370         uint64_t        *buf;
2371         uint64_t        *bucket, *chain;
2372         uint64_t         nbucket, nchain;
2373         uint64_t        *bl, *c, maxl, total;
2374         int              i, j, elferr, first;
2375         char             idx[10];
2376
2377         if (ed->flags & SOLARIS_FMT)
2378                 PRT("\nHash Section:  %s\n", s->name);
2379         else
2380                 PRT("\nhash table (%s):\n", s->name);
2381
2382         /*
2383          * ALPHA uses 64-bit hash entries. Since libelf assumes that
2384          * .hash section contains only 32-bit entry, an explicit
2385          * gelf_xlatetom is needed here.
2386          */
2387         (void) elf_errno();
2388         if ((data = elf_rawdata(s->scn, NULL)) == NULL) {
2389                 elferr = elf_errno();
2390                 if (elferr != 0)
2391                         warnx("elf_rawdata failed: %s",
2392                             elf_errmsg(elferr));
2393                 return;
2394         }
2395         data->d_type = ELF_T_XWORD;
2396         memcpy(&dst, data, sizeof(Elf_Data));
2397         if (gelf_xlatetom(ed->elf, &dst, data,
2398                 ed->ehdr.e_ident[EI_DATA]) != &dst) {
2399                 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
2400                 return;
2401         }
2402         if (dst.d_size < 2 * sizeof(uint64_t)) {
2403                 warnx(".hash section too small");
2404                 return;
2405         }
2406         buf = dst.d_buf;
2407         nbucket = buf[0];
2408         nchain = buf[1];
2409         if (nbucket <= 0 || nchain <= 0) {
2410                 warnx("Malformed .hash section");
2411                 return;
2412         }
2413         if (dst.d_size != (nbucket + nchain + 2) * sizeof(uint64_t)) {
2414                 warnx("Malformed .hash section");
2415                 return;
2416         }
2417         bucket = &buf[2];
2418         chain = &buf[2 + nbucket];
2419
2420         if (ed->flags & SOLARIS_FMT) {
2421                 maxl = 0;
2422                 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
2423                         err(EXIT_FAILURE, "calloc failed");
2424                 for (i = 0; (uint64_t)i < nbucket; i++)
2425                         for (j = bucket[i]; j > 0 && (uint64_t)j < nchain;
2426                              j = chain[j])
2427                                 if (++bl[i] > maxl)
2428                                         maxl = bl[i];
2429                 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
2430                         err(EXIT_FAILURE, "calloc failed");
2431                 for (i = 0; (uint64_t)i < nbucket; i++)
2432                         c[bl[i]]++;
2433                 PRT("    bucket    symndx    name\n");
2434                 for (i = 0; (uint64_t)i < nbucket; i++) {
2435                         first = 1;
2436                         for (j = bucket[i]; j > 0 && (uint64_t)j < nchain;
2437                              j = chain[j]) {
2438                                 if (first) {
2439                                         PRT("%10d  ", i);
2440                                         first = 0;
2441                                 } else
2442                                         PRT("            ");
2443                                 snprintf(idx, sizeof(idx), "[%d]", j);
2444                                 PRT("%-10s  ", idx);
2445                                 PRT("%s\n", get_symbol_name(ed, s->link, j));
2446                         }
2447                 }
2448                 PRT("\n");
2449                 total = 0;
2450                 for (i = 0; (uint64_t)i <= maxl; i++) {
2451                         total += c[i] * i;
2452                         PRT("%10ju  buckets contain %8d symbols\n",
2453                             (uintmax_t)c[i], i);
2454                 }
2455                 PRT("%10ju  buckets         %8ju symbols (globals)\n",
2456                     (uintmax_t)nbucket, (uintmax_t)total);
2457         } else {
2458                 PRT("\nnbucket: %ju\n", (uintmax_t)nbucket);
2459                 PRT("nchain: %ju\n\n", (uintmax_t)nchain);
2460                 for (i = 0; (uint64_t)i < nbucket; i++)
2461                         PRT("bucket[%d]:\n\t%ju\n\n", i, (uintmax_t)bucket[i]);
2462                 for (i = 0; (uint64_t)i < nchain; i++)
2463                         PRT("chain[%d]:\n\t%ju\n\n", i, (uintmax_t)chain[i]);
2464         }
2465
2466 }
2467
2468 /*
2469  * Dump a GNU hash table.
2470  */
2471 static void
2472 elf_print_gnu_hash(struct elfdump *ed, struct section *s)
2473 {
2474         struct section  *ds;
2475         Elf_Data        *data;
2476         uint32_t        *buf;
2477         uint32_t        *bucket, *chain;
2478         uint32_t         nbucket, nchain, symndx, maskwords, shift2;
2479         uint32_t        *bl, *c, maxl, total;
2480         int              i, j, first, elferr, dynsymcount;
2481         char             idx[10];
2482
2483         if (ed->flags & SOLARIS_FMT)
2484                 PRT("\nGNU Hash Section:  %s\n", s->name);
2485         else
2486                 PRT("\ngnu hash table (%s):\n", s->name);
2487         (void) elf_errno();
2488         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2489                 elferr = elf_errno();
2490                 if (elferr != 0)
2491                         warnx("elf_getdata failed: %s",
2492                             elf_errmsg(elferr));
2493                 return;
2494         }
2495         if (data->d_size < 4 * sizeof(uint32_t)) {
2496                 warnx(".gnu.hash section too small");
2497                 return;
2498         }
2499         buf = data->d_buf;
2500         nbucket = buf[0];
2501         symndx = buf[1];
2502         maskwords = buf[2];
2503         shift2 = buf[3];
2504         buf += 4;
2505         ds = &ed->sl[s->link];
2506         dynsymcount = ds->sz / ds->entsize;
2507         nchain = dynsymcount - symndx;
2508         if (data->d_size != 4 * sizeof(uint32_t) + maskwords *
2509             (ed->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) +
2510             (nbucket + nchain) * sizeof(uint32_t)) {
2511                 warnx("Malformed .gnu.hash section");
2512                 return;
2513         }
2514         bucket = buf + (ed->ec == ELFCLASS32 ? maskwords : maskwords * 2);
2515         chain = bucket + nbucket;
2516
2517         if (ed->flags & SOLARIS_FMT) {
2518                 maxl = 0;
2519                 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
2520                         err(EXIT_FAILURE, "calloc failed");
2521                 for (i = 0; (uint32_t)i < nbucket; i++)
2522                         for (j = bucket[i];
2523                              j > 0 && (uint32_t)j - symndx < nchain;
2524                              j++) {
2525                                 if (++bl[i] > maxl)
2526                                         maxl = bl[i];
2527                                 if (chain[j - symndx] & 1)
2528                                         break;
2529                         }
2530                 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
2531                         err(EXIT_FAILURE, "calloc failed");
2532                 for (i = 0; (uint32_t)i < nbucket; i++)
2533                         c[bl[i]]++;
2534                 PRT("    bucket    symndx    name\n");
2535                 for (i = 0; (uint32_t)i < nbucket; i++) {
2536                         first = 1;
2537                         for (j = bucket[i];
2538                              j > 0 && (uint32_t)j - symndx < nchain;
2539                              j++) {
2540                                 if (first) {
2541                                         PRT("%10d  ", i);
2542                                         first = 0;
2543                                 } else
2544                                         PRT("            ");
2545                                 snprintf(idx, sizeof(idx), "[%d]", j );
2546                                 PRT("%-10s  ", idx);
2547                                 PRT("%s\n", get_symbol_name(ed, s->link, j));
2548                                 if (chain[j - symndx] & 1)
2549                                         break;
2550                         }
2551                 }
2552                 PRT("\n");
2553                 total = 0;
2554                 for (i = 0; (uint32_t)i <= maxl; i++) {
2555                         total += c[i] * i;
2556                         PRT("%10u  buckets contain %8d symbols\n", c[i], i);
2557                 }
2558                 PRT("%10u  buckets         %8u symbols (globals)\n", nbucket,
2559                     total);
2560         } else {
2561                 PRT("\nnbucket: %u\n", nbucket);
2562                 PRT("symndx: %u\n", symndx);
2563                 PRT("maskwords: %u\n", maskwords);
2564                 PRT("shift2: %u\n", shift2);
2565                 PRT("nchain: %u\n\n", nchain);
2566                 for (i = 0; (uint32_t)i < nbucket; i++)
2567                         PRT("bucket[%d]:\n\t%u\n\n", i, bucket[i]);
2568                 for (i = 0; (uint32_t)i < nchain; i++)
2569                         PRT("chain[%d]:\n\t%u\n\n", i, chain[i]);
2570         }
2571 }
2572
2573 /*
2574  * Dump hash tables.
2575  */
2576 static void
2577 elf_print_hash(struct elfdump *ed)
2578 {
2579         struct section  *s;
2580         int              i;
2581
2582         for (i = 0; (size_t)i < ed->shnum; i++) {
2583                 s = &ed->sl[i];
2584                 if ((s->type == SHT_HASH || s->type == SHT_GNU_HASH) &&
2585                     (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) {
2586                         if (s->type == SHT_GNU_HASH)
2587                                 elf_print_gnu_hash(ed, s);
2588                         else if (ed->ehdr.e_machine == EM_ALPHA &&
2589                             s->entsize == 8)
2590                                 elf_print_svr4_hash64(ed, s);
2591                         else
2592                                 elf_print_svr4_hash(ed, s);
2593                 }
2594         }
2595 }
2596
2597 /*
2598  * Dump the content of a Version Definition(SHT_SUNW_Verdef) Section.
2599  */
2600 static void
2601 elf_print_verdef(struct elfdump *ed, struct section *s)
2602 {
2603         Elf_Data        *data;
2604         Elf32_Verdef    *vd;
2605         Elf32_Verdaux   *vda;
2606         const char      *str;
2607         char             idx[10];
2608         uint8_t         *buf, *end, *buf2;
2609         int              i, j, elferr, count;
2610
2611         if (ed->flags & SOLARIS_FMT)
2612                 PRT("Version Definition Section:  %s\n", s->name);
2613         else
2614                 PRT("\nversion definition section (%s):\n", s->name);
2615         (void) elf_errno();
2616         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2617                 elferr = elf_errno();
2618                 if (elferr != 0)
2619                         warnx("elf_getdata failed: %s",
2620                             elf_errmsg(elferr));
2621                 return;
2622         }
2623         buf = data->d_buf;
2624         end = buf + data->d_size;
2625         i = 0;
2626         if (ed->flags & SOLARIS_FMT)
2627                 PRT("     index  version                     dependency\n");
2628         while (buf + sizeof(Elf32_Verdef) <= end) {
2629                 vd = (Elf32_Verdef *) (uintptr_t) buf;
2630                 if (ed->flags & SOLARIS_FMT) {
2631                         snprintf(idx, sizeof(idx), "[%d]", vd->vd_ndx);
2632                         PRT("%10s  ", idx);
2633                 } else {
2634                         PRT("\nentry: %d\n", i++);
2635                         PRT("\tvd_version: %u\n", vd->vd_version);
2636                         PRT("\tvd_flags: %u\n", vd->vd_flags);
2637                         PRT("\tvd_ndx: %u\n", vd->vd_ndx);
2638                         PRT("\tvd_cnt: %u\n", vd->vd_cnt);
2639                         PRT("\tvd_hash: %u\n", vd->vd_hash);
2640                         PRT("\tvd_aux: %u\n", vd->vd_aux);
2641                         PRT("\tvd_next: %u\n\n", vd->vd_next);
2642                 }
2643                 buf2 = buf + vd->vd_aux;
2644                 j = 0;
2645                 count = 0;
2646                 while (buf2 + sizeof(Elf32_Verdaux) <= end && j < vd->vd_cnt) {
2647                         vda = (Elf32_Verdaux *) (uintptr_t) buf2;
2648                         str = get_string(ed, s->link, vda->vda_name);
2649                         if (ed->flags & SOLARIS_FMT) {
2650                                 if (count == 0)
2651                                         PRT("%-26.26s", str);
2652                                 else if (count == 1)
2653                                         PRT("  %-20.20s", str);
2654                                 else {
2655                                         PRT("\n%40.40s", "");
2656                                         PRT("%s", str);
2657                                 }
2658                         } else {
2659                                 PRT("\t\tvda: %d\n", j++);
2660                                 PRT("\t\t\tvda_name: %s\n", str);
2661                                 PRT("\t\t\tvda_next: %u\n", vda->vda_next);
2662                         }
2663                         if (vda->vda_next == 0) {
2664                                 if (ed->flags & SOLARIS_FMT) {
2665                                         if (vd->vd_flags & VER_FLG_BASE) {
2666                                                 if (count == 0)
2667                                                         PRT("%-20.20s", "");
2668                                                 PRT("%s", "[ BASE ]");
2669                                         }
2670                                         PRT("\n");
2671                                 }
2672                                 break;
2673                         }
2674                         if (ed->flags & SOLARIS_FMT)
2675                                 count++;
2676                         buf2 += vda->vda_next;
2677                 }
2678                 if (vd->vd_next == 0)
2679                         break;
2680                 buf += vd->vd_next;
2681         }
2682 }
2683
2684 /*
2685  * Dump the content of a Version Needed(SHT_SUNW_Verneed) Section.
2686  */
2687 static void
2688 elf_print_verneed(struct elfdump *ed, struct section *s)
2689 {
2690         Elf_Data        *data;
2691         Elf32_Verneed   *vn;
2692         Elf32_Vernaux   *vna;
2693         uint8_t         *buf, *end, *buf2;
2694         int              i, j, elferr, first;
2695
2696         if (ed->flags & SOLARIS_FMT)
2697                 PRT("\nVersion Needed Section:  %s\n", s->name);
2698         else
2699                 PRT("\nversion need section (%s):\n", s->name);
2700         (void) elf_errno();
2701         if ((data = elf_getdata(s->scn, NULL)) == NULL) {
2702                 elferr = elf_errno();
2703                 if (elferr != 0)
2704                         warnx("elf_getdata failed: %s",
2705                             elf_errmsg(elferr));
2706                 return;
2707         }
2708         buf = data->d_buf;
2709         end = buf + data->d_size;
2710         if (ed->flags & SOLARIS_FMT)
2711                 PRT("            file                        version\n");
2712         i = 0;
2713         while (buf + sizeof(Elf32_Verneed) <= end) {
2714                 vn = (Elf32_Verneed *) (uintptr_t) buf;
2715                 if (ed->flags & SOLARIS_FMT)
2716                         PRT("            %-26.26s  ",
2717                             get_string(ed, s->link, vn->vn_file));
2718                 else {
2719                         PRT("\nentry: %d\n", i++);
2720                         PRT("\tvn_version: %u\n", vn->vn_version);
2721                         PRT("\tvn_cnt: %u\n", vn->vn_cnt);
2722                         PRT("\tvn_file: %s\n",
2723                             get_string(ed, s->link, vn->vn_file));
2724                         PRT("\tvn_aux: %u\n", vn->vn_aux);
2725                         PRT("\tvn_next: %u\n\n", vn->vn_next);
2726                 }
2727                 buf2 = buf + vn->vn_aux;
2728                 j = 0;
2729                 first = 1;
2730                 while (buf2 + sizeof(Elf32_Vernaux) <= end && j < vn->vn_cnt) {
2731                         vna = (Elf32_Vernaux *) (uintptr_t) buf2;
2732                         if (ed->flags & SOLARIS_FMT) {
2733                                 if (!first)
2734                                         PRT("%40.40s", "");
2735                                 else
2736                                         first = 0;
2737                                 PRT("%s\n", get_string(ed, s->link,
2738                                     vna->vna_name));
2739                         } else {
2740                                 PRT("\t\tvna: %d\n", j++);
2741                                 PRT("\t\t\tvna_hash: %u\n", vna->vna_hash);
2742                                 PRT("\t\t\tvna_flags: %u\n", vna->vna_flags);
2743                                 PRT("\t\t\tvna_other: %u\n", vna->vna_other);
2744                                 PRT("\t\t\tvna_name: %s\n",
2745                                     get_string(ed, s->link, vna->vna_name));
2746                                 PRT("\t\t\tvna_next: %u\n", vna->vna_next);
2747                         }
2748                         if (vna->vna_next == 0)
2749                                 break;
2750                         buf2 += vna->vna_next;
2751                 }
2752                 if (vn->vn_next == 0)
2753                         break;
2754                 buf += vn->vn_next;
2755         }
2756 }
2757
2758 /*
2759  * Dump the symbol-versioning sections.
2760  */
2761 static void
2762 elf_print_symver(struct elfdump *ed)
2763 {
2764         struct section  *s;
2765         int              i;
2766
2767         for (i = 0; (size_t)i < ed->shnum; i++) {
2768                 s = &ed->sl[i];
2769                 if (!STAILQ_EMPTY(&ed->snl) && !find_name(ed, s->name))
2770                         continue;
2771                 if (s->type == SHT_SUNW_verdef)
2772                         elf_print_verdef(ed, s);
2773                 if (s->type == SHT_SUNW_verneed)
2774                         elf_print_verneed(ed, s);
2775         }
2776 }
2777
2778 /*
2779  * Dump the ELF checksum. See gelf_checksum(3) for details.
2780  */
2781 static void
2782 elf_print_checksum(struct elfdump *ed)
2783 {
2784
2785         if (!STAILQ_EMPTY(&ed->snl))
2786                 return;
2787
2788         PRT("\nelf checksum: %#lx\n", gelf_checksum(ed->elf));
2789 }
2790
2791 #define USAGE_MESSAGE   "\
2792 Usage: %s [options] file...\n\
2793   Display information about ELF objects and ar(1) archives.\n\n\
2794   Options:\n\
2795   -a                        Show all information.\n\
2796   -c                        Show shared headers.\n\
2797   -d                        Show dynamic symbols.\n\
2798   -e                        Show the ELF header.\n\
2799   -G                        Show the GOT.\n\
2800   -H | --help               Show a usage message and exit.\n\
2801   -h                        Show hash values.\n\
2802   -i                        Show the dynamic interpreter.\n\
2803   -k                        Show the ELF checksum.\n\
2804   -n                        Show the contents of note sections.\n\
2805   -N NAME                   Show the section named \"NAME\".\n\
2806   -p                        Show the program header.\n\
2807   -r                        Show relocations.\n\
2808   -s                        Show the symbol table.\n\
2809   -S                        Use the Solaris elfdump format.\n\
2810   -v                        Show symbol-versioning information.\n\
2811   -V | --version            Print a version identifier and exit.\n\
2812   -w FILE                   Write output to \"FILE\".\n"
2813
2814 static void
2815 usage(void)
2816 {
2817         fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
2818         exit(EXIT_FAILURE);
2819 }