2 * Copyright (c) 2003 David O'Brien. All rights reserved.
3 * Copyright (c) 2001 Jake Burkholder
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/types.h>
32 #include <sys/elf32.h>
33 #include <sys/elf64.h>
34 #include <sys/endian.h>
47 #define ED_EHDR (1<<1)
49 #define ED_HASH (1<<3)
50 #define ED_INTERP (1<<4)
51 #define ED_NOTE (1<<5)
52 #define ED_PHDR (1<<6)
54 #define ED_SHDR (1<<8)
55 #define ED_SYMTAB (1<<9)
56 #define ED_ALL ((1<<10)-1)
58 #define elf_get_addr elf_get_quad
59 #define elf_get_off elf_get_quad
60 #define elf_get_size elf_get_quad
63 D_TAG = 1, D_PTR, D_VAL,
65 E_CLASS, E_DATA, E_OSABI, E_TYPE, E_MACHINE, E_VERSION, E_ENTRY,
66 E_PHOFF, E_SHOFF, E_FLAGS, E_EHSIZE, E_PHENTSIZE, E_PHNUM, E_SHENTSIZE,
69 N_NAMESZ, N_DESCSZ, N_TYPE,
71 P_TYPE, P_OFFSET, P_VADDR, P_PADDR, P_FILESZ, P_MEMSZ, P_FLAGS,
74 SH_NAME, SH_TYPE, SH_FLAGS, SH_ADDR, SH_OFFSET, SH_SIZE, SH_LINK,
75 SH_INFO, SH_ADDRALIGN, SH_ENTSIZE,
77 ST_NAME, ST_VALUE, ST_SIZE, ST_INFO, ST_SHNDX,
81 RA_OFFSET, RA_INFO, RA_ADDEND
84 typedef enum elf_member elf_member_t;
86 int elf32_offsets[] = {
89 offsetof(Elf32_Dyn, d_tag), offsetof(Elf32_Dyn, d_un.d_ptr),
90 offsetof(Elf32_Dyn, d_un.d_val),
92 offsetof(Elf32_Ehdr, e_ident[EI_CLASS]),
93 offsetof(Elf32_Ehdr, e_ident[EI_DATA]),
94 offsetof(Elf32_Ehdr, e_ident[EI_OSABI]),
95 offsetof(Elf32_Ehdr, e_type), offsetof(Elf32_Ehdr, e_machine),
96 offsetof(Elf32_Ehdr, e_version), offsetof(Elf32_Ehdr, e_entry),
97 offsetof(Elf32_Ehdr, e_phoff), offsetof(Elf32_Ehdr, e_shoff),
98 offsetof(Elf32_Ehdr, e_flags), offsetof(Elf32_Ehdr, e_ehsize),
99 offsetof(Elf32_Ehdr, e_phentsize), offsetof(Elf32_Ehdr, e_phnum),
100 offsetof(Elf32_Ehdr, e_shentsize), offsetof(Elf32_Ehdr, e_shnum),
101 offsetof(Elf32_Ehdr, e_shstrndx),
103 offsetof(Elf_Note, n_namesz), offsetof(Elf_Note, n_descsz),
104 offsetof(Elf_Note, n_type),
106 offsetof(Elf32_Phdr, p_type), offsetof(Elf32_Phdr, p_offset),
107 offsetof(Elf32_Phdr, p_vaddr), offsetof(Elf32_Phdr, p_paddr),
108 offsetof(Elf32_Phdr, p_filesz), offsetof(Elf32_Phdr, p_memsz),
109 offsetof(Elf32_Phdr, p_flags), offsetof(Elf32_Phdr, p_align),
111 offsetof(Elf32_Shdr, sh_name), offsetof(Elf32_Shdr, sh_type),
112 offsetof(Elf32_Shdr, sh_flags), offsetof(Elf32_Shdr, sh_addr),
113 offsetof(Elf32_Shdr, sh_offset), offsetof(Elf32_Shdr, sh_size),
114 offsetof(Elf32_Shdr, sh_link), offsetof(Elf32_Shdr, sh_info),
115 offsetof(Elf32_Shdr, sh_addralign), offsetof(Elf32_Shdr, sh_entsize),
117 offsetof(Elf32_Sym, st_name), offsetof(Elf32_Sym, st_value),
118 offsetof(Elf32_Sym, st_size), offsetof(Elf32_Sym, st_info),
119 offsetof(Elf32_Sym, st_shndx),
121 offsetof(Elf32_Rel, r_offset), offsetof(Elf32_Rel, r_info),
123 offsetof(Elf32_Rela, r_offset), offsetof(Elf32_Rela, r_info),
124 offsetof(Elf32_Rela, r_addend)
127 int elf64_offsets[] = {
130 offsetof(Elf64_Dyn, d_tag), offsetof(Elf64_Dyn, d_un.d_ptr),
131 offsetof(Elf64_Dyn, d_un.d_val),
133 offsetof(Elf32_Ehdr, e_ident[EI_CLASS]),
134 offsetof(Elf32_Ehdr, e_ident[EI_DATA]),
135 offsetof(Elf32_Ehdr, e_ident[EI_OSABI]),
136 offsetof(Elf64_Ehdr, e_type), offsetof(Elf64_Ehdr, e_machine),
137 offsetof(Elf64_Ehdr, e_version), offsetof(Elf64_Ehdr, e_entry),
138 offsetof(Elf64_Ehdr, e_phoff), offsetof(Elf64_Ehdr, e_shoff),
139 offsetof(Elf64_Ehdr, e_flags), offsetof(Elf64_Ehdr, e_ehsize),
140 offsetof(Elf64_Ehdr, e_phentsize), offsetof(Elf64_Ehdr, e_phnum),
141 offsetof(Elf64_Ehdr, e_shentsize), offsetof(Elf64_Ehdr, e_shnum),
142 offsetof(Elf64_Ehdr, e_shstrndx),
144 offsetof(Elf_Note, n_namesz), offsetof(Elf_Note, n_descsz),
145 offsetof(Elf_Note, n_type),
147 offsetof(Elf64_Phdr, p_type), offsetof(Elf64_Phdr, p_offset),
148 offsetof(Elf64_Phdr, p_vaddr), offsetof(Elf64_Phdr, p_paddr),
149 offsetof(Elf64_Phdr, p_filesz), offsetof(Elf64_Phdr, p_memsz),
150 offsetof(Elf64_Phdr, p_flags), offsetof(Elf64_Phdr, p_align),
152 offsetof(Elf64_Shdr, sh_name), offsetof(Elf64_Shdr, sh_type),
153 offsetof(Elf64_Shdr, sh_flags), offsetof(Elf64_Shdr, sh_addr),
154 offsetof(Elf64_Shdr, sh_offset), offsetof(Elf64_Shdr, sh_size),
155 offsetof(Elf64_Shdr, sh_link), offsetof(Elf64_Shdr, sh_info),
156 offsetof(Elf64_Shdr, sh_addralign), offsetof(Elf64_Shdr, sh_entsize),
158 offsetof(Elf64_Sym, st_name), offsetof(Elf64_Sym, st_value),
159 offsetof(Elf64_Sym, st_size), offsetof(Elf64_Sym, st_info),
160 offsetof(Elf64_Sym, st_shndx),
162 offsetof(Elf64_Rel, r_offset), offsetof(Elf64_Rel, r_info),
164 offsetof(Elf64_Rela, r_offset), offsetof(Elf64_Rela, r_info),
165 offsetof(Elf64_Rela, r_addend)
168 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#tag_encodings */
170 d_tags(u_int64_t tag) {
172 case 0: return "DT_NULL";
173 case 1: return "DT_NEEDED";
174 case 2: return "DT_PLTRELSZ";
175 case 3: return "DT_PLTGOT";
176 case 4: return "DT_HASH";
177 case 5: return "DT_STRTAB";
178 case 6: return "DT_SYMTAB";
179 case 7: return "DT_RELA";
180 case 8: return "DT_RELASZ";
181 case 9: return "DT_RELAENT";
182 case 10: return "DT_STRSZ";
183 case 11: return "DT_SYMENT";
184 case 12: return "DT_INIT";
185 case 13: return "DT_FINI";
186 case 14: return "DT_SONAME";
187 case 15: return "DT_RPATH";
188 case 16: return "DT_SYMBOLIC";
189 case 17: return "DT_REL";
190 case 18: return "DT_RELSZ";
191 case 19: return "DT_RELENT";
192 case 20: return "DT_PLTREL";
193 case 21: return "DT_DEBUG";
194 case 22: return "DT_TEXTREL";
195 case 23: return "DT_JMPREL";
196 case 24: return "DT_BIND_NOW";
197 case 25: return "DT_INIT_ARRAY";
198 case 26: return "DT_FINI_ARRAY";
199 case 27: return "DT_INIT_ARRAYSZ";
200 case 28: return "DT_FINI_ARRAYSZ";
201 case 29: return "DT_RUNPATH";
202 case 30: return "DT_FLAGS";
203 case 32: return "DT_PREINIT_ARRAY"; /* XXX: DT_ENCODING */
204 case 33: return "DT_PREINIT_ARRAYSZ";
205 /* 0x6000000D - 0x6ffff000 operating system-specific semantics */
206 case 0x6ffffdf5: return "DT_GNU_PRELINKED";
207 case 0x6ffffdf6: return "DT_GNU_CONFLICTSZ";
208 case 0x6ffffdf7: return "DT_GNU_LIBLISTSZ";
209 case 0x6ffffdf8: return "DT_SUNW_CHECKSUM";
210 case 0x6ffffdf9: return "DT_PLTPADSZ";
211 case 0x6ffffdfa: return "DT_MOVEENT";
212 case 0x6ffffdfb: return "DT_MOVESZ";
213 case 0x6ffffdfc: return "DT_FEATURE";
214 case 0x6ffffdfd: return "DT_POSFLAG_1";
215 case 0x6ffffdfe: return "DT_SYMINSZ";
216 case 0x6ffffdff: return "DT_SYMINENT (DT_VALRNGHI)";
217 case 0x6ffffe00: return "DT_ADDRRNGLO";
218 case 0x6ffffef8: return "DT_GNU_CONFLICT";
219 case 0x6ffffef9: return "DT_GNU_LIBLIST";
220 case 0x6ffffefa: return "DT_SUNW_CONFIG";
221 case 0x6ffffefb: return "DT_SUNW_DEPAUDIT";
222 case 0x6ffffefc: return "DT_SUNW_AUDIT";
223 case 0x6ffffefd: return "DT_SUNW_PLTPAD";
224 case 0x6ffffefe: return "DT_SUNW_MOVETAB";
225 case 0x6ffffeff: return "DT_SYMINFO (DT_ADDRRNGHI)";
226 case 0x6ffffff9: return "DT_RELACOUNT";
227 case 0x6ffffffa: return "DT_RELCOUNT";
228 case 0x6ffffffb: return "DT_FLAGS_1";
229 case 0x6ffffffc: return "DT_VERDEF";
230 case 0x6ffffffd: return "DT_VERDEFNUM";
231 case 0x6ffffffe: return "DT_VERNEED";
232 case 0x6fffffff: return "DT_VERNEEDNUM";
233 case 0x6ffffff0: return "DT_GNU_VERSYM";
234 /* 0x70000000 - 0x7fffffff processor-specific semantics */
235 case 0x70000000: return "DT_IA_64_PLT_RESERVE";
236 case 0x7ffffffd: return "DT_SUNW_AUXILIARY";
237 case 0x7ffffffe: return "DT_SUNW_USED";
238 case 0x7fffffff: return "DT_SUNW_FILTER";
239 default: return "ERROR: TAG NOT DEFINED";
244 e_machines(u_int mach)
246 static char machdesc[64];
249 case EM_NONE: return "EM_NONE";
250 case EM_M32: return "EM_M32";
251 case EM_SPARC: return "EM_SPARC";
252 case EM_386: return "EM_386";
253 case EM_68K: return "EM_68K";
254 case EM_88K: return "EM_88K";
255 case EM_860: return "EM_860";
256 case EM_MIPS: return "EM_MIPS";
257 case EM_PPC: return "EM_PPC";
258 case EM_ARM: return "EM_ARM";
259 case EM_ALPHA: return "EM_ALPHA (legacy)";
260 case EM_SPARCV9:return "EM_SPARCV9";
261 case EM_IA_64: return "EM_IA_64";
262 case EM_X86_64: return "EM_X86_64";
264 snprintf(machdesc, sizeof(machdesc),
265 "(unknown machine) -- type 0x%x", mach);
269 const char *e_types[] = {
270 "ET_NONE", "ET_REL", "ET_EXEC", "ET_DYN", "ET_CORE"
273 const char *ei_versions[] = {
274 "EV_NONE", "EV_CURRENT"
277 const char *ei_classes[] = {
278 "ELFCLASSNONE", "ELFCLASS32", "ELFCLASS64"
281 const char *ei_data[] = {
282 "ELFDATANONE", "ELFDATA2LSB", "ELFDATA2MSB"
285 const char *ei_abis[] = {
286 "ELFOSABI_SYSV", "ELFOSABI_HPUX", "ELFOSABI_NETBSD", "ELFOSABI_LINUX",
287 "ELFOSABI_HURD", "ELFOSABI_86OPEN", "ELFOSABI_SOLARIS",
288 "ELFOSABI_MONTEREY", "ELFOSABI_IRIX", "ELFOSABI_FREEBSD",
289 "ELFOSABI_TRU64", "ELFOSABI_MODESTO", "ELFOSABI_OPENBSD"
292 const char *p_types[] = {
293 "PT_NULL", "PT_LOAD", "PT_DYNAMIC", "PT_INTERP", "PT_NOTE",
294 "PT_SHLIB", "PT_PHDR", "PT_TLS"
297 const char *p_flags[] = {
298 "", "PF_X", "PF_W", "PF_X|PF_W", "PF_R", "PF_X|PF_R", "PF_W|PF_R",
302 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html#sh_type */
304 sh_types(u_int64_t sht) {
306 case 0: return "SHT_NULL";
307 case 1: return "SHT_PROGBITS";
308 case 2: return "SHT_SYMTAB";
309 case 3: return "SHT_STRTAB";
310 case 4: return "SHT_RELA";
311 case 5: return "SHT_HASH";
312 case 6: return "SHT_DYNAMIC";
313 case 7: return "SHT_NOTE";
314 case 8: return "SHT_NOBITS";
315 case 9: return "SHT_REL";
316 case 10: return "SHT_SHLIB";
317 case 11: return "SHT_DYNSYM";
318 case 14: return "SHT_INIT_ARRAY";
319 case 15: return "SHT_FINI_ARRAY";
320 case 16: return "SHT_PREINIT_ARRAY";
321 case 17: return "SHT_GROUP";
322 case 18: return "SHT_SYMTAB_SHNDX";
323 /* 0x60000000 - 0x6fffffff operating system-specific semantics */
324 case 0x6ffffff0: return "XXX:VERSYM";
325 case 0x6ffffff7: return "SHT_GNU_LIBLIST";
326 case 0x6ffffffc: return "XXX:VERDEF";
327 case 0x6ffffffd: return "SHT_SUNW(GNU)_verdef";
328 case 0x6ffffffe: return "SHT_SUNW(GNU)_verneed";
329 case 0x6fffffff: return "SHT_SUNW(GNU)_versym";
330 /* 0x70000000 - 0x7fffffff processor-specific semantics */
331 case 0x70000000: return "SHT_IA_64_EXT";
332 case 0x70000001: return "SHT_IA_64_UNWIND";
333 case 0x7ffffffd: return "XXX:AUXILIARY";
334 case 0x7fffffff: return "XXX:FILTER";
335 /* 0x80000000 - 0xffffffff application programs */
336 default: return "ERROR: SHT NOT DEFINED";
340 const char *sh_flags[] = {
341 "", "SHF_WRITE", "SHF_ALLOC", "SHF_WRITE|SHF_ALLOC", "SHF_EXECINSTR",
342 "SHF_WRITE|SHF_EXECINSTR", "SHF_ALLOC|SHF_EXECINSTR",
343 "SHF_WRITE|SHF_ALLOC|SHF_EXECINSTR"
346 const char *st_types[] = {
347 "STT_NOTYPE", "STT_OBJECT", "STT_FUNC", "STT_SECTION", "STT_FILE"
350 const char *st_bindings[] = {
351 "STB_LOCAL", "STB_GLOBAL", "STB_WEAK"
359 u_int64_t elf_get_byte(Elf32_Ehdr *e, void *base, elf_member_t member);
360 u_int64_t elf_get_quarter(Elf32_Ehdr *e, void *base, elf_member_t member);
361 u_int64_t elf_get_half(Elf32_Ehdr *e, void *base, elf_member_t member);
362 u_int64_t elf_get_word(Elf32_Ehdr *e, void *base, elf_member_t member);
363 u_int64_t elf_get_quad(Elf32_Ehdr *e, void *base, elf_member_t member);
365 void elf_print_ehdr(Elf32_Ehdr *e);
366 void elf_print_phdr(Elf32_Ehdr *e, void *p);
367 void elf_print_shdr(Elf32_Ehdr *e, void *sh);
368 void elf_print_symtab(Elf32_Ehdr *e, void *sh, char *str);
369 void elf_print_dynamic(Elf32_Ehdr *e, void *sh);
370 void elf_print_rel(Elf32_Ehdr *e, void *r);
371 void elf_print_rela(Elf32_Ehdr *e, void *ra);
372 void elf_print_interp(Elf32_Ehdr *e, void *p);
373 void elf_print_got(Elf32_Ehdr *e, void *sh);
374 void elf_print_hash(Elf32_Ehdr *e, void *sh);
375 void elf_print_note(Elf32_Ehdr *e, void *sh);
380 main(int ac, char **av)
404 while ((ch = getopt(ac, av, "acdeiGhnprsw:")) != -1)
440 if ((out = fopen(optarg, "w")) == NULL)
441 err(1, "%s", optarg);
449 if (ac == 0 || flags == 0)
451 if ((fd = open(*av, O_RDONLY)) < 0 ||
454 e = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd, 0);
457 if (!IS_ELF(*(Elf32_Ehdr *)e))
458 errx(1, "not an elf file");
459 phoff = elf_get_off(e, e, E_PHOFF);
460 shoff = elf_get_off(e, e, E_SHOFF);
461 phentsize = elf_get_quarter(e, e, E_PHENTSIZE);
462 phnum = elf_get_quarter(e, e, E_PHNUM);
463 shentsize = elf_get_quarter(e, e, E_SHENTSIZE);
464 shnum = elf_get_quarter(e, e, E_SHNUM);
465 shstrndx = elf_get_quarter(e, e, E_SHSTRNDX);
466 p = (char *)e + phoff;
467 sh = (char *)e + shoff;
468 offset = elf_get_off(e, (char *)sh + shstrndx * shentsize, SH_OFFSET);
469 shstrtab = (char *)e + offset;
470 for (i = 0; (u_int64_t)i < shnum; i++) {
471 name = elf_get_word(e, (char *)sh + i * shentsize, SH_NAME);
472 offset = elf_get_off(e, (char *)sh + i * shentsize, SH_OFFSET);
473 if (strcmp(shstrtab + name, ".strtab") == 0)
474 strtab = (char *)e + offset;
475 if (strcmp(shstrtab + name, ".dynstr") == 0)
476 dynstr = (char *)e + offset;
481 elf_print_phdr(e, p);
483 elf_print_shdr(e, sh);
484 for (i = 0; (u_int64_t)i < phnum; i++) {
485 v = (char *)p + i * phentsize;
486 type = elf_get_word(e, v, P_TYPE);
489 if (flags & ED_INTERP)
490 elf_print_interp(e, v);
501 for (i = 0; (u_int64_t)i < shnum; i++) {
502 v = (char *)sh + i * shentsize;
503 type = elf_get_word(e, v, SH_TYPE);
506 if (flags & ED_SYMTAB)
507 elf_print_symtab(e, v, strtab);
511 elf_print_dynamic(e, v);
515 elf_print_rela(e, v);
522 name = elf_get_word(e, v, SH_NAME);
523 if (flags & ED_NOTE &&
524 strcmp(shstrtab + name, ".note.ABI-tag") == 0)
525 elf_print_note(e, v);
528 if (flags & ED_SYMTAB)
529 elf_print_symtab(e, v, dynstr);
532 name = elf_get_word(e, v, SH_NAME);
533 if (flags & ED_GOT &&
534 strcmp(shstrtab + name, ".got") == 0)
539 elf_print_hash(e, v);
553 elf_print_ehdr(Elf32_Ehdr *e)
572 class = elf_get_byte(e, e, E_CLASS);
573 data = elf_get_byte(e, e, E_DATA);
574 osabi = elf_get_byte(e, e, E_OSABI);
575 type = elf_get_quarter(e, e, E_TYPE);
576 machine = elf_get_quarter(e, e, E_MACHINE);
577 version = elf_get_word(e, e, E_VERSION);
578 entry = elf_get_addr(e, e, E_ENTRY);
579 phoff = elf_get_off(e, e, E_PHOFF);
580 shoff = elf_get_off(e, e, E_SHOFF);
581 flags = elf_get_word(e, e, E_FLAGS);
582 ehsize = elf_get_quarter(e, e, E_EHSIZE);
583 phentsize = elf_get_quarter(e, e, E_PHENTSIZE);
584 phnum = elf_get_quarter(e, e, E_PHNUM);
585 shentsize = elf_get_quarter(e, e, E_SHENTSIZE);
586 shnum = elf_get_quarter(e, e, E_SHNUM);
587 shstrndx = elf_get_quarter(e, e, E_SHSTRNDX);
588 fprintf(out, "\nelf header:\n");
590 fprintf(out, "\te_ident: %s %s %s\n", ei_classes[class], ei_data[data],
592 fprintf(out, "\te_type: %s\n", e_types[type]);
593 fprintf(out, "\te_machine: %s\n", e_machines(machine));
594 fprintf(out, "\te_version: %s\n", ei_versions[version]);
595 fprintf(out, "\te_entry: %#jx\n", (intmax_t)entry);
596 fprintf(out, "\te_phoff: %jd\n", (intmax_t)phoff);
597 fprintf(out, "\te_shoff: %jd\n", (intmax_t)shoff);
598 fprintf(out, "\te_flags: %jd\n", (intmax_t)flags);
599 fprintf(out, "\te_ehsize: %jd\n", (intmax_t)ehsize);
600 fprintf(out, "\te_phentsize: %jd\n", (intmax_t)phentsize);
601 fprintf(out, "\te_phnum: %jd\n", (intmax_t)phnum);
602 fprintf(out, "\te_shentsize: %jd\n", (intmax_t)shentsize);
603 fprintf(out, "\te_shnum: %jd\n", (intmax_t)shnum);
604 fprintf(out, "\te_shstrndx: %jd\n", (intmax_t)shstrndx);
608 elf_print_phdr(Elf32_Ehdr *e, void *p)
623 phentsize = elf_get_quarter(e, e, E_PHENTSIZE);
624 phnum = elf_get_quarter(e, e, E_PHNUM);
625 fprintf(out, "\nprogram header:\n");
626 for (i = 0; (u_int64_t)i < phnum; i++) {
627 v = (char *)p + i * phentsize;
628 type = elf_get_word(e, v, P_TYPE);
629 offset = elf_get_off(e, v, P_OFFSET);
630 vaddr = elf_get_addr(e, v, P_VADDR);
631 paddr = elf_get_addr(e, v, P_PADDR);
632 filesz = elf_get_size(e, v, P_FILESZ);
633 memsz = elf_get_size(e, v, P_MEMSZ);
634 flags = elf_get_word(e, v, P_FLAGS);
635 align = elf_get_size(e, v, P_ALIGN);
637 fprintf(out, "entry: %d\n", i);
638 fprintf(out, "\tp_type: %s\n", p_types[type & 0x7]);
639 fprintf(out, "\tp_offset: %jd\n", (intmax_t)offset);
640 fprintf(out, "\tp_vaddr: %#jx\n", (intmax_t)vaddr);
641 fprintf(out, "\tp_paddr: %#jx\n", (intmax_t)paddr);
642 fprintf(out, "\tp_filesz: %jd\n", (intmax_t)filesz);
643 fprintf(out, "\tp_memsz: %jd\n", (intmax_t)memsz);
644 fprintf(out, "\tp_flags: %s\n", p_flags[flags]);
645 fprintf(out, "\tp_align: %jd\n", (intmax_t)align);
650 elf_print_shdr(Elf32_Ehdr *e, void *sh)
667 shentsize = elf_get_quarter(e, e, E_SHENTSIZE);
668 shnum = elf_get_quarter(e, e, E_SHNUM);
669 fprintf(out, "\nsection header:\n");
670 for (i = 0; (u_int64_t)i < shnum; i++) {
671 v = (char *)sh + i * shentsize;
672 name = elf_get_word(e, v, SH_NAME);
673 type = elf_get_word(e, v, SH_TYPE);
674 flags = elf_get_word(e, v, SH_FLAGS);
675 addr = elf_get_addr(e, v, SH_ADDR);
676 offset = elf_get_off(e, v, SH_OFFSET);
677 size = elf_get_size(e, v, SH_SIZE);
678 shlink = elf_get_word(e, v, SH_LINK);
679 info = elf_get_word(e, v, SH_INFO);
680 addralign = elf_get_size(e, v, SH_ADDRALIGN);
681 entsize = elf_get_size(e, v, SH_ENTSIZE);
683 fprintf(out, "entry: %d\n", i);
684 fprintf(out, "\tsh_name: %s\n", shstrtab + name);
685 fprintf(out, "\tsh_type: %s\n", sh_types(type));
686 fprintf(out, "\tsh_flags: %s\n", sh_flags[flags & 0x7]);
687 fprintf(out, "\tsh_addr: %#jx\n", addr);
688 fprintf(out, "\tsh_offset: %jd\n", (intmax_t)offset);
689 fprintf(out, "\tsh_size: %jd\n", (intmax_t)size);
690 fprintf(out, "\tsh_link: %jd\n", (intmax_t)shlink);
691 fprintf(out, "\tsh_info: %jd\n", (intmax_t)info);
692 fprintf(out, "\tsh_addralign: %jd\n", (intmax_t)addralign);
693 fprintf(out, "\tsh_entsize: %jd\n", (intmax_t)entsize);
698 elf_print_symtab(Elf32_Ehdr *e, void *sh, char *str)
711 offset = elf_get_off(e, sh, SH_OFFSET);
712 entsize = elf_get_size(e, sh, SH_ENTSIZE);
713 size = elf_get_size(e, sh, SH_SIZE);
714 name = elf_get_word(e, sh, SH_NAME);
715 len = size / entsize;
716 fprintf(out, "\nsymbol table (%s):\n", shstrtab + name);
717 for (i = 0; i < len; i++) {
718 st = (char *)e + offset + i * entsize;
719 name = elf_get_word(e, st, ST_NAME);
720 value = elf_get_addr(e, st, ST_VALUE);
721 size = elf_get_size(e, st, ST_SIZE);
722 info = elf_get_byte(e, st, ST_INFO);
723 shndx = elf_get_quarter(e, st, ST_SHNDX);
725 fprintf(out, "entry: %d\n", i);
726 fprintf(out, "\tst_name: %s\n", str + name);
727 fprintf(out, "\tst_value: %#jx\n", value);
728 fprintf(out, "\tst_size: %jd\n", (intmax_t)size);
729 fprintf(out, "\tst_info: %s %s\n",
730 st_types[ELF32_ST_TYPE(info)],
731 st_bindings[ELF32_ST_BIND(info)]);
732 fprintf(out, "\tst_shndx: %jd\n", (intmax_t)shndx);
737 elf_print_dynamic(Elf32_Ehdr *e, void *sh)
748 offset = elf_get_off(e, sh, SH_OFFSET);
749 entsize = elf_get_size(e, sh, SH_ENTSIZE);
750 size = elf_get_size(e, sh, SH_SIZE);
751 fprintf(out, "\ndynamic:\n");
752 for (i = 0; (u_int64_t)i < size / entsize; i++) {
753 d = (char *)e + offset + i * entsize;
754 tag = elf_get_size(e, d, D_TAG);
755 ptr = elf_get_size(e, d, D_PTR);
756 val = elf_get_addr(e, d, D_VAL);
758 fprintf(out, "entry: %d\n", i);
759 fprintf(out, "\td_tag: %s\n", d_tags(tag));
764 fprintf(out, "\td_val: %s\n", dynstr + val);
775 fprintf(out, "\td_val: %jd\n", (intmax_t)val);
785 fprintf(out, "\td_ptr: %#jx\n", ptr);
797 elf_print_rela(Elf32_Ehdr *e, void *sh)
809 offset = elf_get_off(e, sh, SH_OFFSET);
810 entsize = elf_get_size(e, sh, SH_ENTSIZE);
811 size = elf_get_size(e, sh, SH_SIZE);
812 name = elf_get_word(e, sh, SH_NAME);
813 v = (char *)e + offset;
814 fprintf(out, "\nrelocation with addend (%s):\n", shstrtab + name);
815 for (i = 0; (u_int64_t)i < size / entsize; i++) {
816 ra = (char *)v + i * entsize;
817 offset = elf_get_addr(e, ra, RA_OFFSET);
818 info = elf_get_word(e, ra, RA_INFO);
819 addend = elf_get_off(e, ra, RA_ADDEND);
821 fprintf(out, "entry: %d\n", i);
822 fprintf(out, "\tr_offset: %#jx\n", offset);
823 fprintf(out, "\tr_info: %jd\n", (intmax_t)info);
824 fprintf(out, "\tr_addend: %jd\n", (intmax_t)addend);
829 elf_print_rel(Elf32_Ehdr *e, void *sh)
840 offset = elf_get_off(e, sh, SH_OFFSET);
841 entsize = elf_get_size(e, sh, SH_ENTSIZE);
842 size = elf_get_size(e, sh, SH_SIZE);
843 name = elf_get_word(e, sh, SH_NAME);
844 v = (char *)e + offset;
845 fprintf(out, "\nrelocation (%s):\n", shstrtab + name);
846 for (i = 0; (u_int64_t)i < size / entsize; i++) {
847 r = (char *)v + i * entsize;
848 offset = elf_get_addr(e, r, R_OFFSET);
849 info = elf_get_word(e, r, R_INFO);
851 fprintf(out, "entry: %d\n", i);
852 fprintf(out, "\tr_offset: %#jx\n", offset);
853 fprintf(out, "\tr_info: %jd\n", (intmax_t)info);
858 elf_print_interp(Elf32_Ehdr *e, void *p)
863 offset = elf_get_off(e, p, P_OFFSET);
864 s = (char *)e + offset;
865 fprintf(out, "\ninterp:\n");
866 fprintf(out, "\t%s\n", s);
870 elf_print_got(Elf32_Ehdr *e, void *sh)
879 offset = elf_get_off(e, sh, SH_OFFSET);
880 addralign = elf_get_size(e, sh, SH_ADDRALIGN);
881 size = elf_get_size(e, sh, SH_SIZE);
882 v = (char *)e + offset;
883 fprintf(out, "\nglobal offset table:\n");
884 for (i = 0; (u_int64_t)i < size / addralign; i++) {
885 addr = elf_get_addr(e, (char *)v + i * addralign, 0);
887 fprintf(out, "entry: %d\n", i);
888 fprintf(out, "\t%#jx\n", addr);
893 elf_print_hash(Elf32_Ehdr *e __unused, void *sh __unused)
898 elf_print_note(Elf32_Ehdr *e, void *sh)
909 offset = elf_get_off(e, sh, SH_OFFSET);
910 size = elf_get_size(e, sh, SH_SIZE);
911 name = elf_get_word(e, sh, SH_NAME);
912 n = (char *)e + offset;
913 fprintf(out, "\nnote (%s):\n", shstrtab + name);
914 while (n < ((char *)e + offset + size)) {
915 namesz = elf_get_word(e, n, N_NAMESZ);
916 descsz = elf_get_word(e, n, N_DESCSZ);
917 type = elf_get_word(e, n, N_TYPE);
918 s = n + sizeof(Elf_Note);
919 desc = elf_get_word(e, n + sizeof(Elf_Note) + namesz, 0);
920 fprintf(out, "\t%s %d\n", s, desc);
921 n += sizeof(Elf_Note) + namesz + descsz;
926 elf_get_byte(Elf32_Ehdr *e, void *base, elf_member_t member)
931 switch (e->e_ident[EI_CLASS]) {
933 val = ((char *)base)[elf32_offsets[member]];
936 val = ((char *)base)[elf64_offsets[member]];
939 errx(1, "invalid class");
946 elf_get_quarter(Elf32_Ehdr *e, void *base, elf_member_t member)
951 switch (e->e_ident[EI_CLASS]) {
953 base = (char *)base + elf32_offsets[member];
954 switch (e->e_ident[EI_DATA]) {
962 errx(1, "invalid data format");
966 base = (char *)base + elf64_offsets[member];
967 switch (e->e_ident[EI_DATA]) {
975 errx(1, "invalid data format");
979 errx(1, "invalid class");
986 elf_get_half(Elf32_Ehdr *e, void *base, elf_member_t member)
991 switch (e->e_ident[EI_CLASS]) {
993 base = (char *)base + elf32_offsets[member];
994 switch (e->e_ident[EI_DATA]) {
1002 errx(1, "invalid data format");
1006 base = (char *)base + elf64_offsets[member];
1007 switch (e->e_ident[EI_DATA]) {
1009 val = be32dec(base);
1012 val = le32dec(base);
1015 errx(1, "invalid data format");
1019 errx(1, "invalid class");
1026 elf_get_word(Elf32_Ehdr *e, void *base, elf_member_t member)
1031 switch (e->e_ident[EI_CLASS]) {
1033 base = (char *)base + elf32_offsets[member];
1034 switch (e->e_ident[EI_DATA]) {
1036 val = be32dec(base);
1039 val = le32dec(base);
1042 errx(1, "invalid data format");
1046 base = (char *)base + elf64_offsets[member];
1047 switch (e->e_ident[EI_DATA]) {
1049 val = be32dec(base);
1052 val = le32dec(base);
1055 errx(1, "invalid data format");
1059 errx(1, "invalid class");
1066 elf_get_quad(Elf32_Ehdr *e, void *base, elf_member_t member)
1071 switch (e->e_ident[EI_CLASS]) {
1073 base = (char *)base + elf32_offsets[member];
1074 switch (e->e_ident[EI_DATA]) {
1076 val = be32dec(base);
1079 val = le32dec(base);
1082 errx(1, "invalid data format");
1086 base = (char *)base + elf64_offsets[member];
1087 switch (e->e_ident[EI_DATA]) {
1089 val = be64dec(base);
1092 val = le64dec(base);
1095 errx(1, "invalid data format");
1099 errx(1, "invalid class");
1108 fprintf(stderr, "usage: elfdump -a | -cdeGhinprs [-w file] file\n");