1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 1988 AT&T
24 * All Rights Reserved
25 *
26 * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
27 */
28
29 /* Get definitions for the relocation types supported. */
30 #define ELF_TARGET_ALL
31
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <locale.h>
35 #include <unistd.h>
36 #include <libelf.h>
37 #include <sys/link.h>
38 #include <sys/elf.h>
39 #include <sys/machelf.h>
40 #include <fcntl.h>
41 #include <sys/stat.h>
42 #include <errno.h>
43 #include <string.h>
44 #include "sgs.h"
45 #include "conv.h"
46 #include "dump.h"
47
48
49 #define OPTSTR "agcd:fhn:oprstvCLT:V?" /* option string for getopt() */
50
51 const char *UNKNOWN = "<unknown>";
52
53 static SCNTAB *p_symtab, *p_head_scns, *p_dynsym;
54
55 static int
56 x_flag = 0, /* option requires section header table */
57 z_flag = 0, /* process files within an archive */
58 rn_flag = 0; /* dump named relocation information */
59
60 static int
61 /* flags: ?_flag corresponds to ? option */
62 a_flag = 0, /* dump archive header of each member of archive */
63 g_flag = 0, /* dump archive symbol table */
64 c_flag = 0, /* dump the string table */
65 d_flag = 0, /* dump range of sections */
66 f_flag = 0, /* dump each file header */
67 h_flag = 0, /* dump section headers */
68 n_flag = 0, /* dump named section */
69 o_flag = 0, /* dump each program execution header */
70 r_flag = 0, /* dump relocation information */
71 s_flag = 0, /* dump section contents */
72 t_flag = 0, /* dump symbol table entries */
73 C_flag = 0, /* dump decoded C++ symbol names */
74 L_flag = 0, /* dump dynamic linking information */
75 T_flag = 0, /* dump symbol table range */
76 V_flag = 0; /* dump version information */
77
78 int p_flag = 0, /* suppress printing of headings */
79 v_flag = 0; /* print information in verbose form */
80
81 static int
82 d_low = 0, /* range for use with -d */
83 d_hi = 0,
84 d_num = 0;
85
86 static int
87 T_low = 0, /* range for use with -T */
88 T_hi = 0,
89 T_num = 0;
90
91 static char *name = NULL; /* for use with -n option */
92 char *prog_name;
93 static int errflag = 0;
94
95 static struct stab_list_s {
96 struct stab_list_s *next;
97 char *strings;
98 size_t size;
99 } *StringTableList = (void *)0;
100
101 extern void ar_sym_read();
102 extern void dump_exec_header();
103
104
105 /*
106 * Get the section descriptor and set the size of the
107 * data returned. Data is byte-order converted.
108 */
109 void *
110 get_scndata(Elf_Scn *fd_scn, size_t *size)
111 {
112 Elf_Data *p_data;
113
114 p_data = 0;
115 if ((p_data = elf_getdata(fd_scn, p_data)) == 0 ||
116 p_data->d_size == 0) {
117 return (NULL);
118 }
119 *size = p_data->d_size;
120 return (p_data->d_buf);
121 }
122
123 /*
124 * Get the section descriptor and set the size of the
125 * data returned. Data is raw (i.e., not byte-order converted).
126 */
127 static void *
128 get_rawscn(Elf_Scn *fd_scn, size_t *size)
129 {
130 Elf_Data *p_data;
131
132 p_data = 0;
133 if ((p_data = elf_rawdata(fd_scn, p_data)) == 0 ||
134 p_data->d_size == 0) {
135 return (NULL);
136 }
137
138 *size = p_data->d_size;
139 return (p_data->d_buf);
140 }
141
142 /*
143 * Print out a usage message in short form when program is invoked
144 * with insufficient or no arguments, and in long form when given
145 * either a ? or an invalid option.
146 */
147 static void
148 usage()
149 {
150 (void) fprintf(stderr,
151 "Usage: %s [-%s] file(s) ...\n", prog_name, OPTSTR);
152 if (errflag) {
153 (void) fprintf(stderr,
154 "\t\t[-a dump archive header of each member of archive]\n\
155 [-g dump archive global symbol table]\n\
156 [-c dump the string table]\n\
157 [-d dump range of sections]\n\
158 [-f dump each file header]\n\
159 [-h dump section headers]\n\
160 [-n dump named section]\n\
161 [-o dump each program execution header]\n\
162 [-p suppress printing of headings]\n\
163 [-r dump relocation information]\n\
164 [-s dump section contents]\n\
165 [-t dump symbol table entries]\n\
166 [-v print information in verbose form]\n\
167 [-C dump decoded C++ symbol names]\n\
168 [-L dump the .dynamic structure]\n\
169 [-T dump symbol table range]\n\
170 [-V dump version information]\n");
171 }
172 }
173
174 /*
175 * Set a range. Input is a character string, a lower
176 * bound and an upper bound. This function converts
177 * a character string into its correct integer values,
178 * setting the first value as the lower bound, and
179 * the second value as the upper bound. If more values
180 * are given they are ignored with a warning.
181 */
182 static void
183 set_range(char *s, int *low, int *high)
184 {
185 char *w;
186 char *lasts;
187
188 while ((w = strtok_r(s, ",", &lasts)) != NULL) {
189 if (!(*low))
190 /* LINTED */
191 *low = (int)atol(w);
192 else
193 if (!(*high))
194 /* LINTED */
195 *high = (int)atol(w);
196 else {
197 (void) fprintf(stderr,
198 "%s: too many arguments - %s ignored\n",
199 prog_name, w);
200 return;
201 }
202 s = NULL;
203 } /* end while */
204 }
205
206
207 /*
208 * Print static shared library information.
209 */
210 static void
211 print_static(SCNTAB *l_scns, char *filename)
212 {
213 size_t section_size;
214 unsigned char *strtab;
215 unsigned char *path, buf[1024];
216 unsigned long *temp;
217 unsigned long total, topath;
218
219 (void) printf("\n **** STATIC SHARED LIBRARY INFORMATION ****\n");
220 (void) printf("\n%s:\n", filename);
221 (void) printf("\t");
222 section_size = 0;
223 if ((strtab = (unsigned char *)
224 get_scndata(l_scns->p_sd, §ion_size)) == NULL) {
225 return;
226 }
227
228 while (section_size != 0) {
229 /* LINTED */
230 temp = (unsigned long *)strtab;
231 total = temp[0];
232 topath = temp[1];
233 path = strtab + (topath*sizeof (long));
234 (void) strncpy((char *)buf, (char *)path,
235 (total - topath)*sizeof (long));
236 (void) fprintf(stdout, "%s\n", buf);
237 strtab += total*sizeof (long);
238 section_size -= (total*sizeof (long));
239 }
240 }
241
242 /*
243 * Print raw data in hexidecimal. Input is the section data to
244 * be printed out and the size of the data. Output is relative
245 * to a table lookup in dumpmap.h.
246 */
247 static void
248 print_rawdata(unsigned char *p_sec, size_t size)
249 {
250 size_t j;
251 size_t count;
252
253 count = 1;
254
255 (void) printf("\t");
256 for (j = size/sizeof (short); j != 0; --j, ++count) {
257 (void) printf("%.2x %.2x ", p_sec[0], p_sec[1]);
258 p_sec += 2;
259 if (count == 12) {
260 (void) printf("\n\t");
261 count = 0;
262 }
263 }
264
265 /*
266 * take care of last byte if odd byte section
267 */
268 if ((size & 0x1L) == 1L)
269 (void) printf("%.2x", *p_sec);
270 (void) printf("\n");
271 }
272
273
274
275 /*
276 * Print relocation data of type SHT_RELA
277 * If d_flag, print data corresponding only to
278 * the section or range of sections specified.
279 * If n_flag, print data corresponding only to
280 * the named section.
281 */
282 static void
283 print_rela(Elf *elf_file, SCNTAB *p_scns, Elf_Data *rdata, Elf_Data *sym_data,
284 GElf_Ehdr * p_ehdr, size_t reloc_size, size_t sym_size, char *filename,
285 SCNTAB *reloc_symtab)
286 {
287 GElf_Rela rela;
288 GElf_Sym sym;
289 size_t no_entries;
290 size_t rel_entsize;
291 size_t no_syms;
292 int type, symid;
293 static int n_title = 0;
294 int ndx = 0;
295 char *sym_name;
296 int adj = 0;
297
298 if (gelf_getclass(elf_file) == ELFCLASS64)
299 adj = 8;
300
301 rel_entsize = p_scns->p_shdr.sh_entsize;
302 if ((rel_entsize == 0) ||
303 (rel_entsize > p_scns->p_shdr.sh_size)) {
304 rel_entsize = gelf_fsize(elf_file, ELF_T_RELA, 1,
305 EV_CURRENT);
306 }
307 no_entries = reloc_size / rel_entsize;
308
309 no_syms = sym_size / gelf_fsize(elf_file, ELF_T_SYM, 1, EV_CURRENT);
310 while (no_entries--) {
311 (void) gelf_getrela(rdata, ndx, &rela);
312 /* LINTED */
313 type = (int)GELF_R_TYPE(rela.r_info);
314 /* LINTED */
315 symid = (int)GELF_R_SYM(rela.r_info);
316 /* LINTED */
317 if ((symid > (no_syms - 1)) || (symid < 0)) {
318 (void) fprintf(stderr, "%s: %s: invalid symbol table "
319 "offset - %d - in %s\n", prog_name, filename,
320 symid, p_scns->scn_name);
321 ndx++;
322 continue;
323 }
324 (void) gelf_getsym(sym_data, symid, &sym);
325 sym_name = (char *)elf_strptr(elf_file,
326 reloc_symtab->p_shdr.sh_link, sym.st_name);
327 if (sym_name == NULL)
328 sym_name = (char *)UNKNOWN;
329 if (r_flag && rn_flag) {
330 if (strcmp(name, p_scns->scn_name) != 0) {
331 ndx++;
332 continue;
333 }
334 if (!n_title) {
335 (void) printf("\n%s:\n", p_scns->scn_name);
336 (void) printf("%-*s%-*s%-*s%s\n\n",
337 12 + adj, "Offset", 22, "Symndx",
338 16, "Type", "Addend");
339 n_title = 1;
340 }
341 }
342 if (d_flag) {
343 if (!d_hi)
344 d_hi = d_low;
345 if ((symid < d_low) || (symid > d_hi)) {
346 ndx++;
347 continue;
348 }
349 }
350
351 (void) printf("%-#*llx", 12 + adj, EC_XWORD(rela.r_offset));
352 if (!v_flag) {
353 (void) printf("%-22d%-18d", symid, type);
354 } else {
355 Conv_inv_buf_t inv_buf;
356
357 if (strlen(sym_name)) {
358 size_t len = strlen(sym_name) + 1;
359 char tmpstr[10];
360 if (len > 22) {
361 (void) sprintf(tmpstr, "%%-%ds",
362 /* LINTED */
363 (int)len);
364 /*LINTED: E_SEC_PRINTF_VAR_FMT*/
365 (void) printf(tmpstr, sym_name);
366 } else
367 (void) printf("%-22s", sym_name);
368 } else {
369 (void) printf("%-22d", symid);
370 }
371 (void) printf("%-20s",
372 conv_reloc_type(p_ehdr->e_machine,
373 type, DUMP_CONVFMT, &inv_buf));
374 }
375 (void) printf("%lld\n", EC_SXWORD(rela.r_addend));
376 ndx++;
377 }
378 }
379
380 /*
381 * Print relocation data of type SHT_REL.
382 * If d_flag, print data corresponding only to
383 * the section or range of sections specified.
384 * If n_flag, print data corresponding only to
385 * the named section.
386 */
387 static void
388 print_rel(Elf *elf_file, SCNTAB *p_scns, Elf_Data *rdata, Elf_Data *sym_data,
389 GElf_Ehdr *p_ehdr, size_t reloc_size, size_t sym_size, char *filename,
390 SCNTAB *reloc_symtab)
391 {
392 GElf_Rel rel;
393 GElf_Sym sym;
394 size_t no_entries;
395 size_t rel_entsize;
396 int type, symid;
397 size_t no_syms;
398 static int n_title = 0;
399 int ndx = 0;
400 char *sym_name;
401 int adj = 0;
402
403 if (gelf_getclass(elf_file) == ELFCLASS64)
404 adj = 8;
405
406 rel_entsize = p_scns->p_shdr.sh_entsize;
407 if ((rel_entsize == 0) ||
408 (rel_entsize > p_scns->p_shdr.sh_size)) {
409 rel_entsize = gelf_fsize(elf_file, ELF_T_REL, 1,
410 EV_CURRENT);
411 }
412 no_entries = reloc_size / rel_entsize;
413
414 no_syms = sym_size / gelf_fsize(elf_file, ELF_T_SYM, 1, EV_CURRENT);
415 while (no_entries--) {
416 (void) gelf_getrel(rdata, ndx, &rel);
417 /* LINTED */
418 type = (int)GELF_R_TYPE(rel.r_info);
419 /* LINTED */
420 symid = (int)GELF_R_SYM(rel.r_info);
421 /* LINTED */
422 if ((symid > (no_syms - 1)) || (symid < 0)) {
423 (void) fprintf(stderr, "%s: %s: invalid symbol table "
424 "offset - %d - in %s\n", prog_name, filename,
425 symid, p_scns->scn_name);
426 ndx++;
427 continue;
428 }
429 (void) gelf_getsym(sym_data, symid, &sym);
430 sym_name = (char *)elf_strptr(elf_file,
431 reloc_symtab->p_shdr.sh_link, sym.st_name);
432 if (sym_name == NULL)
433 sym_name = (char *)UNKNOWN;
434 if (r_flag && rn_flag) {
435 if (strcmp(name, p_scns->scn_name) != 0) {
436 ndx++;
437 continue;
438 }
439 if (!n_title) {
440 (void) printf("\n%s:\n", p_scns->scn_name);
441 (void) printf("%-*s%-*s%s\n\n",
442 12 + adj, "Offset", 20, "Symndx", "Type");
443 n_title = 1;
444 }
445 }
446 if (d_flag) {
447 if (!d_hi)
448 d_hi = d_low;
449 if ((symid < d_low) || (symid > d_hi)) {
450 ndx++;
451 continue;
452 }
453 }
454
455 (void) printf("%-#*llx", 12 + adj, EC_ADDR(rel.r_offset));
456 if (!v_flag) {
457 (void) printf("%-20d%-18d", symid, type);
458 } else {
459 Conv_inv_buf_t inv_buf;
460
461 if (strlen(sym_name))
462 (void) printf("%-20s", sym_name);
463 else {
464 (void) printf("%-20d", sym.st_name);
465 }
466 (void) printf("%-20s",
467 conv_reloc_type(p_ehdr->e_machine,
468 type, DUMP_CONVFMT, &inv_buf));
469 }
470 (void) printf("\n");
471 ndx++;
472 }
473 }
474
475 /* demangle C++ names */
476 static char *
477 demangled_name(char *s)
478 {
479 static char *buf = NULL;
480 const char *dn;
481 size_t len;
482
483 dn = conv_demangle_name(s);
484
485 /*
486 * If not demangled, just return the symbol name
487 */
488 if (strcmp(s, dn) == 0)
489 return (s);
490
491 /*
492 * Demangled. Format it
493 */
494 if (buf != NULL)
495 free(buf);
496
497 len = strlen(dn) + strlen(s) + 4;
498 if ((buf = malloc(len)) == NULL)
499 return (s);
500
501 (void) snprintf(buf, len, "%s\t[%s]", dn, s);
502 return (buf);
503 }
504
505 /*
506 * Print the symbol table. Input is an ELF file descriptor, a
507 * pointer to the symbol table SCNTAB structure,
508 * the number of symbols, a range of symbols to print,
509 * an index which is the number of the
510 * section in the file, and the filename. The number of sections,
511 * the range, and the index are set in
512 * dump_symbol_table, depending on whether -n or -T were set.
513 */
514 static void
515 print_symtab(Elf *elf_file, SCNTAB *p_symtab, Elf_Data *sym_data,
516 long range, int index)
517 {
518 GElf_Sym sym;
519 int adj = 0; /* field adjustment for elf64 */
520 Elf32_Word *symshndx = 0;
521 unsigned int nosymshndx = 0;
522 Conv_inv_buf_t inv_buf;
523
524
525 if (gelf_getclass(elf_file) == ELFCLASS64)
526 adj = 8;
527
528 while (range > 0) {
529 char *sym_name = (char *)0;
530 int type, bind;
531 int specsec;
532 unsigned int shndx;
533
534 (void) gelf_getsym(sym_data, index, &sym);
535 type = (int)GELF_ST_TYPE(sym.st_info);
536 bind = (int)GELF_ST_BIND(sym.st_info);
537
538 if ((sym.st_shndx == SHN_XINDEX) &&
539 (symshndx == 0) && (nosymshndx == 0)) {
540 Elf_Scn *_scn;
541 GElf_Shdr _shdr;
542 size_t symscnndx;
543
544 symscnndx = elf_ndxscn(p_symtab->p_sd);
545 _scn = 0;
546 while ((_scn = elf_nextscn(elf_file, _scn)) != 0) {
547 if (gelf_getshdr(_scn, &_shdr) == 0)
548 break;
549 if ((_shdr.sh_type == SHT_SYMTAB_SHNDX) &&
550 /* LINTED */
551 (_shdr.sh_link == (GElf_Word)symscnndx)) {
552 Elf_Data *_data;
553
554 if ((_data = elf_getdata(_scn, 0)) == 0)
555 continue;
556
557 symshndx = (Elf32_Word *)_data->d_buf;
558 nosymshndx = 0;
559 break;
560 }
561 }
562 nosymshndx = 1;
563 }
564
565 if ((symshndx) && (sym.st_shndx == SHN_XINDEX)) {
566 shndx = symshndx[index];
567 specsec = 0;
568 } else {
569 shndx = sym.st_shndx;
570 if ((sym.st_shndx == SHN_UNDEF) ||
571 (sym.st_shndx >= SHN_LORESERVE))
572 specsec = 1;
573 else
574 specsec = 0;
575 }
576
577
578 (void) printf("[%d]\t ", index++);
579
580 if (v_flag && (type == STT_SPARC_REGISTER)) {
581 /*
582 * The strings "REG_G1" through "REG_G7" are intended
583 * to be consistent with output from elfdump(1).
584 */
585 (void) printf("%-*s", 12 + adj,
586 conv_sym_SPARC_value(sym.st_value,
587 DUMP_CONVFMT, &inv_buf));
588 } else {
589 (void) printf("0x%-*llx", 10 + adj,
590 EC_ADDR(sym.st_value));
591 }
592
593 (void) printf("%-*lld", 9 + adj, EC_XWORD(sym.st_size));
594
595 if (!v_flag) {
596 (void) printf("%d\t\t%d\t%d\t%#x\t",
597 type, bind, (int)sym.st_other, (int)shndx);
598 } else {
599 GElf_Ehdr p_ehdr;
600 (void) gelf_getehdr(elf_file, &p_ehdr);
601 (void) printf("%s\t",
602 conv_sym_info_type(p_ehdr.e_machine, type,
603 DUMP_CONVFMT, &inv_buf));
604 (void) printf("%s",
605 conv_sym_info_bind(bind, DUMP_CONVFMT, &inv_buf));
606 (void) printf("\t %d\t", EC_WORD(sym.st_other));
607
608 if (specsec)
609 (void) printf("%s",
610 conv_sym_shndx(p_ehdr.e_ident[EI_OSABI],
611 p_ehdr.e_machine, shndx,
612 CONV_FMT_DECIMAL, &inv_buf));
613 else
614 (void) printf("%d", EC_WORD(shndx));
615 (void) printf("\t");
616 }
617
618 /* support machines where NULL-deref causes core dump */
619 if (sym.st_name == 0)
620 sym_name = (char *)UNKNOWN;
621 else
622 if (C_flag)
623 sym_name = demangled_name(
624 (char *)elf_strptr(elf_file,
625 p_symtab->p_shdr.sh_link,
626 sym.st_name));
627 else
628 sym_name = (char *)elf_strptr(elf_file,
629 p_symtab->p_shdr.sh_link, sym.st_name);
630 if (sym_name == NULL)
631 sym_name = (char *)UNKNOWN;
632 (void) printf("%s\n", sym_name);
633
634 range--;
635 } /* end while */
636 }
637
638 /*
639 * Print the section header table. Input is the SCNTAB structure,
640 * the number of sections, an index which is the number of the
641 * section in the file, and the filename. The values of the SCNTAB
642 * structure, the number of sections, and the index are set in
643 * dump_shdr depending on whether the -n or -d modifiers were set.
644 */
645 static void
646 print_shdr(Elf *elf_file, SCNTAB *s, int num_scns, int index)
647 {
648 SCNTAB *p;
649 int num;
650 int field;
651 GElf_Ehdr p_ehdr;
652
653 if (gelf_getclass(elf_file) == ELFCLASS64)
654 field = 21;
655 else
656 field = 13;
657
658 p = s;
659 (void) gelf_getehdr(elf_file, &p_ehdr);
660
661 for (num = 0; num < num_scns; num++, p++) {
662 (void) printf("[%d]\t", index++);
663 if (!v_flag) {
664 (void) printf("%u\t%llu\t",
665 EC_WORD(p->p_shdr.sh_type),
666 EC_XWORD(p->p_shdr.sh_flags));
667 } else {
668 Conv_inv_buf_t inv_buf;
669
670 /*LINTED: E_SEC_PRINTF_VAR_FMT*/
671 (void) printf(conv_sec_type(
672 p_ehdr.e_ident[EI_OSABI], p_ehdr.e_machine,
673 p->p_shdr.sh_type, DUMP_CONVFMT, &inv_buf));
674 (void) printf(" ");
675
676 if (p->p_shdr.sh_flags & SHF_WRITE)
677 (void) printf("W");
678 else
679 (void) printf("-");
680 if (p->p_shdr.sh_flags & SHF_ALLOC)
681 (void) printf("A");
682 else
683 (void) printf("-");
684 if (p->p_shdr.sh_flags & SHF_EXECINSTR)
685 (void) printf("I");
686 else
687 (void) printf("-");
688
689 if (p->p_shdr.sh_flags & SHF_ORDERED)
690 (void) printf("O");
691 if (p->p_shdr.sh_flags & SHF_EXCLUDE)
692 (void) printf("E");
693
694 (void) printf("\t");
695
696 }
697 (void) printf("%-#*llx%-#*llx%-#*llx%s%s\n",
698 field, EC_ADDR(p->p_shdr.sh_addr),
699 field, EC_OFF(p->p_shdr.sh_offset),
700 field, EC_XWORD(p->p_shdr.sh_size),
701 /* compatibility: tab for elf32 */
702 (field == 13) ? "\t" : " ", p->scn_name);
703
704 (void) printf("\t%u\t%u\t%-#*llx%-#*llx\n\n",
705 EC_WORD(p->p_shdr.sh_link),
706 EC_WORD(p->p_shdr.sh_info),
707 field, EC_XWORD(p->p_shdr.sh_addralign),
708 field, EC_XWORD(p->p_shdr.sh_entsize));
709 }
710 }
711
712 /*
713 * Check that a range of numbers is valid. Input is
714 * a lower bound, an upper bound, a boundary condition,
715 * and the filename. Negative numbers and numbers greater
716 * than the bound are invalid. low must be smaller than hi.
717 * The returned integer is the number of items in the
718 * range if it is valid and -1 otherwise.
719 */
720 static int
721 check_range(int low, int hi, size_t bound, char *filename)
722 {
723 if (((size_t)low > bound) || (low <= 0)) {
724 (void) fprintf(stderr,
725 "%s: %s: number out of range, %d\n",
726 prog_name, filename, low);
727 return (-1);
728 }
729 if (((size_t)hi > bound) || (hi < 0)) {
730 (void) fprintf(stderr,
731 "%s: %s: number out of range, %d\n",
732 prog_name, filename, hi);
733 return (-1);
734 }
735
736 if (hi && (low > hi)) {
737 (void) fprintf(stderr,
738 "%s: %s: invalid range, %d,%d\n",
739 prog_name, filename, low, hi);
740 return (-1);
741 }
742 if (hi)
743 return (hi - low + 1);
744 else
745 return (1);
746 }
747
748 /*
749 * Print relocation information. Since this information is
750 * machine dependent, new sections must be added for each machine
751 * that is supported. Input is an ELF file descriptor, the ELF header,
752 * the SCNTAB structure, the number of sections, and a filename.
753 * Set up necessary information to print relocation information
754 * and call the appropriate print function depending on the
755 * type of relocation information. If the symbol table is
756 * absent, no relocation data is processed. Input is an
757 * ELF file descriptor, the ELF header, the SCNTAB structure,
758 * and the filename. Set range of d_flag and name if n_flag.
759 */
760 static void
761 dump_reloc_table(Elf *elf_file, GElf_Ehdr *p_ehdr,
762 SCNTAB *p_scns, int num_scns, char *filename)
763 {
764 Elf_Data *rel_data;
765 Elf_Data *sym_data;
766 size_t sym_size;
767 size_t reloc_size;
768 SCNTAB *reloc_symtab;
769 SCNTAB *head_scns;
770 int r_title = 0;
771 int adj = 0;
772 size_t shnum;
773
774 if (gelf_getclass(elf_file) == ELFCLASS64)
775 adj = 8;
776
777 if ((!p_flag) && (!r_title)) {
778 (void) printf("\n **** RELOCATION INFORMATION ****\n");
779 r_title = 1;
780 }
781
782 while (num_scns-- > 0) {
783 if ((p_scns->p_shdr.sh_type != SHT_RELA) &&
784 (p_scns->p_shdr.sh_type != SHT_REL)) {
785 p_scns++;
786 continue;
787 }
788
789 head_scns = p_head_scns;
790
791 if (elf_getshdrnum(elf_file, &shnum) == -1) {
792 (void) fprintf(stderr,
793 "%s: %s: elf_getshdrnum failed: %s\n",
794 prog_name, filename, elf_errmsg(-1));
795 return;
796 }
797
798 if ((p_scns->p_shdr.sh_link == 0) ||
799 /* LINTED */
800 (p_scns->p_shdr.sh_link >= (GElf_Word)shnum)) {
801 (void) fprintf(stderr, "%s: %s: invalid sh_link field: "
802 "section #: %d sh_link: %d\n",
803 /* LINTED */
804 prog_name, filename, (int)elf_ndxscn(p_scns->p_sd),
805 (int)p_scns->p_shdr.sh_link);
806 return;
807 }
808 head_scns += (p_scns->p_shdr.sh_link -1);
809
810 if (head_scns->p_shdr.sh_type == SHT_SYMTAB) {
811 reloc_symtab = p_symtab;
812 } else if (head_scns->p_shdr.sh_type == SHT_DYNSYM) {
813 reloc_symtab = p_dynsym;
814 } else {
815 (void) fprintf(stderr,
816 "%s: %s: could not get symbol table\n", prog_name, filename);
817 return;
818 }
819
820 sym_data = NULL;
821 sym_size = 0;
822 reloc_size = 0;
823
824 if ((sym_data = elf_getdata(reloc_symtab->p_sd, NULL)) == NULL) {
825 (void) fprintf(stderr,
826 "%s: %s: no symbol table data\n", prog_name, filename);
827 return;
828 }
829 sym_size = sym_data->d_size;
830
831 if (p_scns == NULL) {
832 (void) fprintf(stderr,
833 "%s: %s: no section table data\n", prog_name, filename);
834 return;
835 }
836
837 if (p_scns->p_shdr.sh_type == SHT_RELA) {
838 if (!n_flag && r_flag)
839 (void) printf("\n%s:\n", p_scns->scn_name);
840 if (!p_flag && (!n_flag && r_flag))
841 (void) printf("%-*s%-*s%-*s%s\n\n",
842 12 + adj, "Offset", 22, "Symndx",
843 18, "Type", "Addend");
844 if ((rel_data = elf_getdata(p_scns->p_sd, NULL)) == NULL) {
845 (void) fprintf(stderr,
846 "%s: %s: no relocation information\n", prog_name, filename);
847 return;
848 }
849 reloc_size = rel_data->d_size;
850
851 if (n_flag) {
852 rn_flag = 1;
853 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
854 reloc_size, sym_size, filename, reloc_symtab);
855 }
856 if (d_flag) {
857 rn_flag = 0;
858 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
859 reloc_size, sym_size, filename, reloc_symtab);
860 }
861 if (!n_flag && !d_flag)
862 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
863 reloc_size, sym_size, filename, reloc_symtab);
864 } else {
865 if (p_scns->p_shdr.sh_type == SHT_REL) {
866 if (!n_flag && r_flag)
867 (void) printf("\n%s:\n", p_scns->scn_name);
868 if (!p_flag && (!n_flag && r_flag)) {
869 (void) printf("%-*s%-*s%s\n\n",
870 12 + adj, "Offset", 20, "Symndx", "Type");
871 }
872 if ((rel_data = elf_getdata(p_scns->p_sd, NULL))
873 == NULL) {
874 (void) fprintf(stderr,
875 "%s: %s: no relocation information\n", prog_name, filename);
876 return;
877 }
878 reloc_size = rel_data->d_size;
879 if (n_flag) {
880 rn_flag = 1;
881 print_rel(elf_file, p_scns, rel_data, sym_data,
882 p_ehdr, reloc_size, sym_size,
883 filename, reloc_symtab);
884 }
885 if (d_flag) {
886 rn_flag = 0;
887 print_rel(elf_file, p_scns, rel_data, sym_data,
888 p_ehdr, reloc_size, sym_size,
889 filename, reloc_symtab);
890 }
891 if (!n_flag && !d_flag)
892 print_rel(elf_file, p_scns, rel_data, sym_data,
893 p_ehdr, reloc_size, sym_size,
894 filename, reloc_symtab);
895 }
896 }
897 p_scns++;
898 }
899 }
900
901 /*
902 * Print out the string tables. Input is an opened ELF file,
903 * the SCNTAB structure, the number of sections, and the filename.
904 * Since there can be more than one string table, all sections are
905 * examined and any with the correct type are printed out.
906 */
907 static void
908 dump_string_table(SCNTAB *s, int num_scns)
909 {
910 size_t section_size;
911 unsigned char *strtab;
912 int beg_of_string;
913 int counter = 0;
914 int str_off;
915 int i;
916
917 if (!p_flag) {
918 (void) printf("\n **** STRING TABLE INFORMATION ****\n");
919 }
920
921 for (i = 0; i < num_scns; i++, s++) {
922 if (s->p_shdr.sh_type != SHT_STRTAB)
923 continue;
924
925 str_off = 0;
926
927 if (!p_flag) {
928 (void) printf("\n%s:\n", s->scn_name);
929 (void) printf(" <offset> \tName\n");
930 }
931 section_size = 0;
932 if ((strtab = (unsigned char *)
933 get_scndata(s->p_sd, §ion_size)) == NULL) {
934 continue;
935 }
936
937 if (section_size != 0) {
938 (void) printf(" <%d> \t", str_off);
939 beg_of_string = 0;
940 while (section_size--) {
941 unsigned char c = *strtab++;
942
943 if (beg_of_string) {
944 (void) printf(" <%d> \t", str_off);
945 counter++;
946 beg_of_string = 0;
947 }
948 str_off++;
949 switch (c) {
950 case '\0':
951 (void) printf("\n");
952 beg_of_string = 1;
953 break;
954 default:
955 (void) putchar(c);
956 }
957 }
958 }
959 }
960 (void) printf("\n");
961 }
962
963 /*
964 * Print the symbol table. This function does not print the contents
965 * of the symbol table but sets up the parameters and then calls
966 * print_symtab to print the symbols. Calling another function to print
967 * the symbols allows both -T and -n to work correctly
968 * simultaneously. Input is an opened ELF file, a pointer to the
969 * symbol table SCNTAB structure, and the filename.
970 * Set the range of symbols to print if T_flag, and set
971 * name of symbol to print if n_flag.
972 */
973 static void
974 dump_symbol_table(Elf *elf_file, SCNTAB *p_symtab, char *filename)
975 {
976 Elf_Data *sym_data;
977 GElf_Sym T_range, n_range; /* for use with -T and -n */
978 size_t count = 0;
979 size_t sym_size;
980 int index = 1;
981 int found_it = 0;
982 int i;
983 int adj = 0; /* field adjustment for elf64 */
984
985 if (gelf_getclass(elf_file) == ELFCLASS64)
986 adj = 8;
987
988 if (p_symtab == NULL) {
989 (void) fprintf(stderr,
990 "%s: %s: could not get symbol table\n", prog_name, filename);
991 return;
992 }
993
994 /* get symbol table data */
995 sym_data = NULL;
996 sym_size = 0;
997 if ((sym_data =
998 elf_getdata(p_symtab->p_sd, NULL)) == NULL) {
999 (void) printf("\n%s:\n", p_symtab->scn_name);
1000 (void) printf("No symbol table data\n");
1001 return;
1002 }
1003 sym_size = sym_data->d_size;
1004
1005 count = sym_size / p_symtab->p_shdr.sh_entsize;
1006
1007 if (n_flag && t_flag && !T_flag) {
1008 /* LINTED */
1009 for (i = 1; i < count; i++) {
1010 (void) gelf_getsym(sym_data, i, &n_range);
1011 if (strcmp(name, (char *)
1012 elf_strptr(elf_file,
1013 p_symtab->p_shdr.sh_link,
1014 n_range.st_name)) != 0) {
1015 continue;
1016 } else {
1017 found_it = 1;
1018 if (!p_flag) {
1019 (void) printf(
1020 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1021 (void) printf(
1022 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1023 12 + adj, "Value", 9 + adj, "Size");
1024 }
1025 (void) printf("\n%s:\n", p_symtab->scn_name);
1026 print_symtab(elf_file, p_symtab, sym_data,
1027 1, i);
1028 }
1029 } /* end for */
1030 if (!found_it) {
1031 (void) fprintf(stderr, "%s: %s: %s not found\n",
1032 prog_name, filename, name);
1033 }
1034 } else if (T_flag) {
1035 T_num = check_range(T_low, T_hi, count, filename);
1036 if (T_num < 0)
1037 return;
1038
1039 (void) gelf_getsym(sym_data, T_low-1, &T_range);
1040 index = T_low;
1041
1042 if (!p_flag) {
1043 (void) printf(
1044 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1045 (void) printf(
1046 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1047 12 + adj, "Value", 9 + adj, "Size");
1048 }
1049 (void) printf("\n%s:\n", p_symtab->scn_name);
1050 print_symtab(elf_file, p_symtab, sym_data, T_num, index);
1051 } else {
1052 if (!p_flag) {
1053 (void) printf(
1054 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1055 (void) printf(
1056 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1057 12 + adj, "Value", 9 + adj, "Size");
1058 }
1059 (void) printf("\n%s:\n", p_symtab->scn_name);
1060 print_symtab(elf_file, p_symtab, sym_data, count-1, 1);
1061 }
1062 }
1063
1064
1065 /*
1066 * Print dynamic linking information. Input is an ELF
1067 * file descriptor, the SCNTAB structure, the number of
1068 * sections, and the filename.
1069 */
1070 static void
1071 dump_dynamic(Elf *elf_file, SCNTAB *p_scns, int num_scns, char *filename)
1072 {
1073 #define pdyn_Fmtptr "%#llx"
1074
1075 Elf_Data *dyn_data;
1076 GElf_Dyn p_dyn;
1077 GElf_Phdr p_phdr;
1078 GElf_Ehdr p_ehdr;
1079 int index = 1;
1080 int lib_scns = num_scns;
1081 SCNTAB *l_scns = p_scns;
1082 int header_num = 0;
1083 const char *str;
1084
1085 (void) gelf_getehdr(elf_file, &p_ehdr);
1086
1087 if (!p_flag)
1088 (void) printf("\n **** DYNAMIC SECTION INFORMATION ****\n");
1089
1090 for (; num_scns > 0; num_scns--, p_scns++) {
1091 GElf_Word link;
1092 int ii;
1093
1094
1095 if (p_scns->p_shdr.sh_type != SHT_DYNAMIC)
1096 continue;
1097
1098 if (!p_flag) {
1099 (void) printf("%s:\n", p_scns->scn_name);
1100 (void) printf("[INDEX]\tTag Value\n");
1101 }
1102
1103 if ((dyn_data = elf_getdata(p_scns->p_sd, NULL)) == 0) {
1104 (void) fprintf(stderr, "%s: %s: no data in "
1105 "%s section\n", prog_name, filename,
1106 p_scns->scn_name);
1107 return;
1108 }
1109
1110 link = p_scns->p_shdr.sh_link;
1111 ii = 0;
1112
1113 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1114 while (p_dyn.d_tag != DT_NULL) {
1115 union {
1116 Conv_inv_buf_t inv;
1117 Conv_dyn_flag_buf_t dyn_flag;
1118 Conv_dyn_flag1_buf_t dyn_flag1;
1119 Conv_dyn_feature1_buf_t dyn_feature1;
1120 Conv_dyn_posflag1_buf_t dyn_posflag1;
1121 } conv_buf;
1122
1123 (void) printf("[%d]\t%-15.15s ", index++,
1124 conv_dyn_tag(p_dyn.d_tag,
1125 p_ehdr.e_ident[EI_OSABI], p_ehdr.e_machine,
1126 DUMP_CONVFMT, &conv_buf.inv));
1127
1128 /*
1129 * It would be nice to use a table driven loop
1130 * here, but the address space is too sparse
1131 * and irregular. A switch is simple and robust.
1132 */
1133 switch (p_dyn.d_tag) {
1134 /*
1135 * Items with an address value
1136 */
1137 case DT_PLTGOT:
1138 case DT_HASH:
1139 case DT_STRTAB:
1140 case DT_RELA:
1141 case DT_SYMTAB:
1142 case DT_INIT:
1143 case DT_FINI:
1144 case DT_REL:
1145 case DT_DEBUG:
1146 case DT_TEXTREL:
1147 case DT_JMPREL:
1148 case DT_INIT_ARRAY:
1149 case DT_FINI_ARRAY:
1150 case DT_INIT_ARRAYSZ:
1151 case DT_FINI_ARRAYSZ:
1152 case DT_PREINIT_ARRAY:
1153 case DT_PREINIT_ARRAYSZ:
1154 case DT_SUNW_RTLDINF:
1155 case DT_SUNW_CAP:
1156 case DT_SUNW_CAPINFO:
1157 case DT_SUNW_CAPCHAIN:
1158 case DT_SUNW_SYMTAB:
1159 case DT_SUNW_SYMSORT:
1160 case DT_SUNW_TLSSORT:
1161 case DT_PLTPAD:
1162 case DT_MOVETAB:
1163 case DT_SYMINFO:
1164 case DT_RELACOUNT:
1165 case DT_RELCOUNT:
1166 case DT_VERSYM:
1167 case DT_VERDEF:
1168 case DT_VERDEFNUM:
1169 case DT_VERNEED:
1170 (void) printf(pdyn_Fmtptr,
1171 EC_ADDR(p_dyn.d_un.d_ptr));
1172 break;
1173
1174 /*
1175 * Items with a string value
1176 */
1177 case DT_NEEDED:
1178 case DT_SONAME:
1179 case DT_RPATH:
1180 case DT_RUNPATH:
1181 case DT_SUNW_AUXILIARY:
1182 case DT_SUNW_FILTER:
1183 case DT_CONFIG:
1184 case DT_DEPAUDIT:
1185 case DT_AUDIT:
1186 case DT_AUXILIARY:
1187 case DT_USED:
1188 case DT_FILTER:
1189 if (v_flag) { /* Look up the string */
1190 str = (char *)elf_strptr(elf_file, link,
1191 p_dyn.d_un.d_ptr);
1192 if (!(str && *str))
1193 str = (char *)UNKNOWN;
1194 (void) printf("%s", str);
1195 } else { /* Show the address */
1196 (void) printf(pdyn_Fmtptr,
1197 EC_ADDR(p_dyn.d_un.d_ptr));
1198 }
1199 break;
1200
1201 /*
1202 * Items with a literal value
1203 */
1204 case DT_PLTRELSZ:
1205 case DT_RELASZ:
1206 case DT_RELAENT:
1207 case DT_STRSZ:
1208 case DT_SYMENT:
1209 case DT_RELSZ:
1210 case DT_RELENT:
1211 case DT_PLTREL:
1212 case DT_BIND_NOW:
1213 case DT_CHECKSUM:
1214 case DT_PLTPADSZ:
1215 case DT_MOVEENT:
1216 case DT_MOVESZ:
1217 case DT_SYMINSZ:
1218 case DT_SYMINENT:
1219 case DT_VERNEEDNUM:
1220 case DT_SPARC_REGISTER:
1221 case DT_SUNW_SYMSZ:
1222 case DT_SUNW_SORTENT:
1223 case DT_SUNW_SYMSORTSZ:
1224 case DT_SUNW_TLSSORTSZ:
1225 case DT_SUNW_STRPAD:
1226 case DT_SUNW_CAPCHAINENT:
1227 case DT_SUNW_CAPCHAINSZ:
1228 case DT_SUNW_ASLR:
1229 (void) printf(pdyn_Fmtptr,
1230 EC_XWORD(p_dyn.d_un.d_val));
1231 break;
1232
1233 /*
1234 * Integer items that are bitmasks, or which
1235 * can be otherwise formatted in symbolic form.
1236 */
1237 case DT_FLAGS:
1238 case DT_FEATURE_1:
1239 case DT_POSFLAG_1:
1240 case DT_FLAGS_1:
1241 case DT_SUNW_LDMACH:
1242 str = NULL;
1243 if (v_flag) {
1244 switch (p_dyn.d_tag) {
1245 case DT_FLAGS:
1246 str = conv_dyn_flag(
1247 p_dyn.d_un.d_val,
1248 DUMP_CONVFMT,
1249 &conv_buf.dyn_flag);
1250 break;
1251 case DT_FEATURE_1:
1252 str = conv_dyn_feature1(
1253 p_dyn.d_un.d_val,
1254 DUMP_CONVFMT,
1255 &conv_buf.dyn_feature1);
1256 break;
1257 case DT_POSFLAG_1:
1258 str = conv_dyn_posflag1(
1259 p_dyn.d_un.d_val,
1260 DUMP_CONVFMT,
1261 &conv_buf.dyn_posflag1);
1262 break;
1263 case DT_FLAGS_1:
1264 str = conv_dyn_flag1(
1265 p_dyn.d_un.d_val, 0,
1266 &conv_buf.dyn_flag1);
1267 break;
1268 case DT_SUNW_LDMACH:
1269 str = conv_ehdr_mach(
1270 p_dyn.d_un.d_val, 0,
1271 &conv_buf.inv);
1272 break;
1273 }
1274 }
1275 if (str) { /* Show as string */
1276 (void) printf("%s", str);
1277 } else { /* Numeric form */
1278 (void) printf(pdyn_Fmtptr,
1279 EC_ADDR(p_dyn.d_un.d_ptr));
1280 }
1281 break;
1282
1283 /*
1284 * Depreciated items with a literal value
1285 */
1286 case DT_DEPRECATED_SPARC_REGISTER:
1287 (void) printf(pdyn_Fmtptr
1288 " (deprecated value)",
1289 EC_XWORD(p_dyn.d_un.d_val));
1290 break;
1291
1292 /* Ignored items */
1293 case DT_SYMBOLIC:
1294 (void) printf("(ignored)");
1295 break;
1296 }
1297 (void) printf("\n");
1298 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1299 }
1300 }
1301
1302 /*
1303 * Check for existence of static shared library information.
1304 */
1305 while (header_num < p_ehdr.e_phnum) {
1306 (void) gelf_getphdr(elf_file, header_num, &p_phdr);
1307 if (p_phdr.p_type == PT_SHLIB) {
1308 while (--lib_scns > 0) {
1309 if (strcmp(l_scns->scn_name, ".lib") == 0) {
1310 print_static(l_scns, filename);
1311 }
1312 l_scns++;
1313 }
1314 }
1315 header_num++;
1316 }
1317 #undef pdyn_Fmtptr
1318 }
1319
1320 /*
1321 * Print the ELF header. Input is an ELF file descriptor
1322 * and the filename. If f_flag is set, the ELF header is
1323 * printed to stdout, otherwise the function returns after
1324 * setting the pointer to the ELF header. Any values which
1325 * are not known are printed in decimal. Fields must be updated
1326 * as new values are added.
1327 */
1328 static GElf_Ehdr *
1329 dump_elf_header(Elf *elf_file, char *filename, GElf_Ehdr * elf_head_p)
1330 {
1331 int class;
1332 int field;
1333
1334 if (gelf_getehdr(elf_file, elf_head_p) == NULL) {
1335 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1336 elf_errmsg(-1));
1337 return (NULL);
1338 }
1339
1340 class = (int)elf_head_p->e_ident[4];
1341
1342 if (class == ELFCLASS64)
1343 field = 21;
1344 else
1345 field = 13;
1346
1347 if (!f_flag)
1348 return (elf_head_p);
1349
1350 if (!p_flag) {
1351 (void) printf("\n **** ELF HEADER ****\n");
1352 (void) printf("%-*s%-11s%-*sMachine Version\n",
1353 field, "Class", "Data", field, "Type");
1354 (void) printf("%-*s%-11s%-*sFlags Ehsize\n",
1355 field, "Entry", "Phoff", field, "Shoff");
1356 (void) printf("%-*s%-11s%-*sShnum Shstrndx\n\n",
1357 field, "Phentsize", "Phnum", field, "Shentsz");
1358 }
1359
1360 if (!v_flag) {
1361 (void) printf("%-*d%-11d%-*d%-12d%d\n",
1362 field, elf_head_p->e_ident[4], elf_head_p->e_ident[5],
1363 field, (int)elf_head_p->e_type, (int)elf_head_p->e_machine,
1364 elf_head_p->e_version);
1365 } else {
1366 Conv_inv_buf_t inv_buf;
1367
1368 (void) printf("%-*s", field,
1369 conv_ehdr_class(class, DUMP_CONVFMT, &inv_buf));
1370 (void) printf("%-11s",
1371 conv_ehdr_data(elf_head_p->e_ident[5], DUMP_CONVFMT,
1372 &inv_buf));
1373 (void) printf("%-*s", field,
1374 conv_ehdr_type(elf_head_p->e_ident[EI_OSABI],
1375 elf_head_p->e_type, DUMP_CONVFMT, &inv_buf));
1376 (void) printf("%-12s",
1377 conv_ehdr_mach(elf_head_p->e_machine, DUMP_CONVFMT,
1378 &inv_buf));
1379 (void) printf("%s\n",
1380 conv_ehdr_vers(elf_head_p->e_version, DUMP_CONVFMT,
1381 &inv_buf));
1382 }
1383 (void) printf("%-#*llx%-#11llx%-#*llx%-#12x%#x\n",
1384 field, EC_ADDR(elf_head_p->e_entry), EC_OFF(elf_head_p->e_phoff),
1385 field, EC_OFF(elf_head_p->e_shoff), EC_WORD(elf_head_p->e_flags),
1386 EC_WORD(elf_head_p->e_ehsize));
1387 if (!v_flag || (elf_head_p->e_shstrndx != SHN_XINDEX)) {
1388 (void) printf("%-#*x%-11u%-#*x%-12u%u\n",
1389 field, EC_WORD(elf_head_p->e_phentsize),
1390 EC_WORD(elf_head_p->e_phnum),
1391 field, EC_WORD(elf_head_p->e_shentsize),
1392 EC_WORD(elf_head_p->e_shnum),
1393 EC_WORD(elf_head_p->e_shstrndx));
1394 } else {
1395 (void) printf("%-#*x%-11u%-#*x%-12uXINDEX\n",
1396 field, EC_WORD(elf_head_p->e_phentsize),
1397 EC_WORD(elf_head_p->e_phnum),
1398 field, EC_WORD(elf_head_p->e_shentsize),
1399 EC_WORD(elf_head_p->e_shnum));
1400 }
1401 if ((elf_head_p->e_shnum == 0) && (elf_head_p->e_shoff > 0)) {
1402 Elf_Scn *scn;
1403 GElf_Shdr shdr0;
1404 int field;
1405
1406 if (gelf_getclass(elf_file) == ELFCLASS64)
1407 field = 21;
1408 else
1409 field = 13;
1410 if (!p_flag) {
1411 (void) printf("\n **** SECTION HEADER[0] "
1412 "{Elf Extensions} ****\n");
1413 (void) printf(
1414 "[No]\tType\tFlags\t%-*s %-*s%-*s%sName\n",
1415 field, "Addr", field, "Offset", field,
1416 "Size(shnum)",
1417 /* compatibility: tab for elf32 */
1418 (field == 13) ? "\t" : " ");
1419 (void) printf("\tLn(strndx) Info\t%-*s Entsize\n",
1420 field, "Adralgn");
1421 }
1422 if ((scn = elf_getscn(elf_file, 0)) == NULL) {
1423 (void) fprintf(stderr,
1424 "%s: %s: elf_getscn failed: %s\n",
1425 prog_name, filename, elf_errmsg(-1));
1426 return (NULL);
1427 }
1428 if (gelf_getshdr(scn, &shdr0) == 0) {
1429 (void) fprintf(stderr,
1430 "%s: %s: gelf_getshdr: %s\n",
1431 prog_name, filename, elf_errmsg(-1));
1432 return (NULL);
1433 }
1434 (void) printf("[0]\t%u\t%llu\t", EC_WORD(shdr0.sh_type),
1435 EC_XWORD(shdr0.sh_flags));
1436
1437 (void) printf("%-#*llx %-#*llx%-*llu%s%-*u\n",
1438 field, EC_ADDR(shdr0.sh_addr),
1439 field, EC_OFF(shdr0.sh_offset),
1440 field, EC_XWORD(shdr0.sh_size),
1441 /* compatibility: tab for elf32 */
1442 ((field == 13) ? "\t" : " "),
1443 field, EC_WORD(shdr0.sh_name));
1444
1445 (void) printf("\t%u\t%u\t%-#*llx %-#*llx\n",
1446 EC_WORD(shdr0.sh_link),
1447 EC_WORD(shdr0.sh_info),
1448 field, EC_XWORD(shdr0.sh_addralign),
1449 field, EC_XWORD(shdr0.sh_entsize));
1450 }
1451 (void) printf("\n");
1452
1453 return (elf_head_p);
1454 }
1455
1456 /*
1457 * Print section contents. Input is an ELF file descriptor,
1458 * the ELF header, the SCNTAB structure,
1459 * the number of symbols, and the filename.
1460 * The number of sections,
1461 * and the offset into the SCNTAB structure will be
1462 * set in dump_section if d_flag or n_flag are set.
1463 * If v_flag is set, sections which can be interpreted will
1464 * be interpreted, otherwise raw data will be output in hexidecimal.
1465 */
1466 static void
1467 print_section(Elf *elf_file,
1468 GElf_Ehdr *p_ehdr, SCNTAB *p, int num_scns, char *filename)
1469 {
1470 unsigned char *p_sec;
1471 int i;
1472 size_t size;
1473
1474 for (i = 0; i < num_scns; i++, p++) {
1475 GElf_Shdr shdr;
1476
1477 size = 0;
1478 if (s_flag && !v_flag)
1479 p_sec = (unsigned char *)get_rawscn(p->p_sd, &size);
1480 else
1481 p_sec = (unsigned char *)get_scndata(p->p_sd, &size);
1482
1483 if ((gelf_getshdr(p->p_sd, &shdr) != NULL) &&
1484 (shdr.sh_type == SHT_NOBITS)) {
1485 continue;
1486 }
1487 if (s_flag && !v_flag) {
1488 (void) printf("\n%s:\n", p->scn_name);
1489 print_rawdata(p_sec, size);
1490 continue;
1491 }
1492 if (shdr.sh_type == SHT_SYMTAB) {
1493 dump_symbol_table(elf_file, p, filename);
1494 continue;
1495 }
1496 if (shdr.sh_type == SHT_DYNSYM) {
1497 dump_symbol_table(elf_file, p, filename);
1498 continue;
1499 }
1500 if (shdr.sh_type == SHT_STRTAB) {
1501 dump_string_table(p, 1);
1502 continue;
1503 }
1504 if (shdr.sh_type == SHT_RELA) {
1505 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1506 continue;
1507 }
1508 if (shdr.sh_type == SHT_REL) {
1509 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1510 continue;
1511 }
1512 if (shdr.sh_type == SHT_DYNAMIC) {
1513 dump_dynamic(elf_file, p, 1, filename);
1514 continue;
1515 }
1516
1517 (void) printf("\n%s:\n", p->scn_name);
1518 print_rawdata(p_sec, size);
1519 }
1520 (void) printf("\n");
1521 }
1522
1523 /*
1524 * Print section contents. This function does not print the contents
1525 * of the sections but sets up the parameters and then calls
1526 * print_section to print the contents. Calling another function to print
1527 * the contents allows both -d and -n to work correctly
1528 * simultaneously. Input is an ELF file descriptor, the ELF header,
1529 * the SCNTAB structure, the number of sections, and the filename.
1530 * Set the range of sections if d_flag, and set section name if
1531 * n_flag.
1532 */
1533 static void
1534 dump_section(Elf *elf_file,
1535 GElf_Ehdr *p_ehdr, SCNTAB *s, int num_scns, char *filename)
1536 {
1537 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1538 int i;
1539 int found_it = 0; /* for use with -n section_name */
1540
1541 if (n_flag) {
1542 n_range = s;
1543
1544 for (i = 0; i < num_scns; i++, n_range++) {
1545 if ((strcmp(name, n_range->scn_name)) != 0)
1546 continue;
1547 else {
1548 found_it = 1;
1549 print_section(elf_file, p_ehdr,
1550 n_range, 1, filename);
1551 }
1552 }
1553
1554 if (!found_it) {
1555 (void) fprintf(stderr, "%s: %s: %s not found\n",
1556 prog_name, filename, name);
1557 }
1558 } /* end n_flag */
1559
1560 if (d_flag) {
1561 d_range = s;
1562 d_num = check_range(d_low, d_hi, num_scns, filename);
1563 if (d_num < 0)
1564 return;
1565 d_range += d_low - 1;
1566
1567 print_section(elf_file, p_ehdr, d_range, d_num, filename);
1568 } /* end d_flag */
1569
1570 if (!n_flag && !d_flag)
1571 print_section(elf_file, p_ehdr, s, num_scns, filename);
1572 }
1573
1574 /*
1575 * Print the section header table. This function does not print the contents
1576 * of the section headers but sets up the parameters and then calls
1577 * print_shdr to print the contents. Calling another function to print
1578 * the contents allows both -d and -n to work correctly
1579 * simultaneously. Input is the SCNTAB structure,
1580 * the number of sections from the ELF header, and the filename.
1581 * Set the range of section headers to print if d_flag, and set
1582 * name of section header to print if n_flag.
1583 */
1584 static void
1585 dump_shdr(Elf *elf_file, SCNTAB *s, int num_scns, char *filename)
1586 {
1587
1588 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1589 int field;
1590 int i;
1591 int found_it = 0; /* for use with -n section_name */
1592
1593 if (gelf_getclass(elf_file) == ELFCLASS64)
1594 field = 21;
1595 else
1596 field = 13;
1597
1598 if (!p_flag) {
1599 (void) printf("\n **** SECTION HEADER TABLE ****\n");
1600 (void) printf("[No]\tType\tFlags\t%-*s %-*s %-*s%sName\n",
1601 field, "Addr", field, "Offset", field, "Size",
1602 /* compatibility: tab for elf32 */
1603 (field == 13) ? "\t" : " ");
1604 (void) printf("\tLink\tInfo\t%-*s Entsize\n\n",
1605 field, "Adralgn");
1606 }
1607
1608 if (n_flag) {
1609 n_range = s;
1610
1611 for (i = 1; i <= num_scns; i++, n_range++) {
1612 if ((strcmp(name, n_range->scn_name)) != 0)
1613 continue;
1614 else {
1615 found_it = 1;
1616 print_shdr(elf_file, n_range, 1, i);
1617 }
1618 }
1619
1620 if (!found_it) {
1621 (void) fprintf(stderr, "%s: %s: %s not found\n",
1622 prog_name, filename, name);
1623 }
1624 } /* end n_flag */
1625
1626 if (d_flag) {
1627 d_range = s;
1628 d_num = check_range(d_low, d_hi, num_scns, filename);
1629 if (d_num < 0)
1630 return;
1631 d_range += d_low - 1;
1632
1633 print_shdr(elf_file, d_range, d_num, d_low);
1634 } /* end d_flag */
1635
1636 if (!n_flag && !d_flag)
1637 print_shdr(elf_file, s, num_scns, 1);
1638 }
1639
1640 /*
1641 * Process all of the command line options (except
1642 * for -a, -g, -f, and -o). All of the options processed
1643 * by this function require the presence of the section
1644 * header table and will not be processed if it is not present.
1645 * Set up a buffer containing section name, section header,
1646 * and section descriptor for each section in the file. This
1647 * structure is used to avoid duplicate calls to libelf functions.
1648 * Structure members for the symbol table, the debugging information,
1649 * and the line number information are global. All of the
1650 * rest are local.
1651 */
1652 static void
1653 dump_section_table(Elf *elf_file, GElf_Ehdr *elf_head_p, char *filename)
1654 {
1655
1656 static SCNTAB *buffer, *p_scns;
1657 Elf_Scn *scn = 0;
1658 char *s_name = NULL;
1659 int found = 0;
1660 unsigned int num_scns;
1661 size_t shstrndx;
1662 size_t shnum;
1663
1664
1665 if (elf_getshdrnum(elf_file, &shnum) == -1) {
1666 (void) fprintf(stderr,
1667 "%s: %s: elf_getshdrnum failed: %s\n",
1668 prog_name, filename, elf_errmsg(-1));
1669 return;
1670 }
1671 if (elf_getshdrstrndx(elf_file, &shstrndx) == -1) {
1672 (void) fprintf(stderr,
1673 "%s: %s: elf_getshdrstrndx failed: %s\n",
1674 prog_name, filename, elf_errmsg(-1));
1675 return;
1676 }
1677
1678 if ((buffer = calloc(shnum, sizeof (SCNTAB))) == NULL) {
1679 (void) fprintf(stderr, "%s: %s: cannot calloc space\n",
1680 prog_name, filename);
1681 return;
1682 }
1683 /* LINTED */
1684 num_scns = (int)shnum - 1;
1685
1686 p_symtab = (SCNTAB *)0;
1687 p_dynsym = (SCNTAB *)0;
1688 p_scns = buffer;
1689 p_head_scns = buffer;
1690
1691 while ((scn = elf_nextscn(elf_file, scn)) != 0) {
1692 if ((gelf_getshdr(scn, &buffer->p_shdr)) == 0) {
1693 (void) fprintf(stderr,
1694 "%s: %s: %s\n", prog_name, filename,
1695 elf_errmsg(-1));
1696 return;
1697 }
1698 s_name = (char *)
1699 elf_strptr(elf_file, shstrndx, buffer->p_shdr.sh_name);
1700 buffer->scn_name = s_name ? s_name : (char *)UNKNOWN;
1701 buffer->p_sd = scn;
1702
1703 if (buffer->p_shdr.sh_type == SHT_SYMTAB) {
1704 found += 1;
1705 p_symtab = buffer;
1706 }
1707 if (buffer->p_shdr.sh_type == SHT_DYNSYM)
1708 p_dynsym = buffer;
1709 buffer++;
1710 }
1711
1712 /*
1713 * These functions depend upon the presence of the section header table
1714 * and will not be invoked in its absence
1715 */
1716 if (h_flag) {
1717 dump_shdr(elf_file, p_scns, num_scns, filename);
1718 }
1719 if (p_symtab && (t_flag || T_flag)) {
1720 dump_symbol_table(elf_file, p_symtab, filename);
1721 }
1722 if (c_flag) {
1723 dump_string_table(p_scns, num_scns);
1724 }
1725 if (r_flag) {
1726 dump_reloc_table(elf_file, elf_head_p,
1727 p_scns, num_scns, filename);
1728 }
1729 if (L_flag) {
1730 dump_dynamic(elf_file, p_scns, num_scns, filename);
1731 }
1732 if (s_flag) {
1733 dump_section(elf_file, elf_head_p, p_scns,
1734 num_scns, filename);
1735 }
1736 }
1737
1738 /*
1739 * Load the archive string table(s) (for extended-length strings)
1740 * into an in-core table/list
1741 */
1742 static struct stab_list_s *
1743 load_arstring_table(struct stab_list_s *STabList,
1744 int fd, Elf *elf_file, Elf_Arhdr *p_ar, char *filename)
1745 {
1746 off_t here;
1747 struct stab_list_s *STL_entry, *STL_next;
1748
1749 if (p_ar) {
1750 STL_entry = malloc(sizeof (struct stab_list_s));
1751 STL_entry->next = 0;
1752 STL_entry->strings = 0;
1753 STL_entry->size = 0;
1754
1755 if (!STabList)
1756 STabList = STL_entry;
1757 else {
1758 STL_next = STabList;
1759 while (STL_next->next != (void *)0)
1760 STL_next = STL_next->next;
1761 STL_next->next = STL_entry;
1762 }
1763
1764 STL_entry->size = p_ar->ar_size;
1765 STL_entry->strings = malloc(p_ar->ar_size);
1766 here = elf_getbase(elf_file);
1767 if ((lseek(fd, here, 0)) != here) {
1768 (void) fprintf(stderr,
1769 "%s: %s: could not lseek\n", prog_name, filename);
1770 }
1771
1772 if ((read(fd, STL_entry->strings, p_ar->ar_size)) == -1) {
1773 (void) fprintf(stderr,
1774 "%s: %s: could not read\n", prog_name, filename);
1775 }
1776 }
1777 return (STabList);
1778 }
1779
1780 /*
1781 * Print the archive header for each member of an archive.
1782 * Also call ar_sym_read to print the symbols in the
1783 * archive symbol table if g_flag. Input is a file descriptor,
1784 * an ELF file descriptor, and the filename. Putting the call
1785 * to dump the archive symbol table in this function is more
1786 * efficient since it is necessary to examine the archive member
1787 * name in the archive header to determine which member is the
1788 * symbol table.
1789 */
1790 static void
1791 dump_ar_hdr(int fd, Elf *elf_file, char *filename)
1792 {
1793 extern int v_flag, g_flag, a_flag, p_flag;
1794 Elf_Arhdr *p_ar;
1795 Elf *arf;
1796 Elf_Cmd cmd;
1797 int title = 0;
1798 int err = 0;
1799
1800 char buf[DATESIZE];
1801
1802 cmd = ELF_C_READ;
1803 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1804 p_ar = elf_getarhdr(arf);
1805 if (p_ar == NULL) {
1806 (void) fprintf(stderr,
1807 "%s: %s: %s\n", prog_name, filename,
1808 elf_errmsg(-1));
1809 continue;
1810 }
1811 if ((strcmp(p_ar->ar_name, "/") == 0) ||
1812 (strcmp(p_ar->ar_name, "/SYM64/") == 0)) {
1813 if (g_flag)
1814 ar_sym_read(elf_file, filename);
1815 } else if (strcmp(p_ar->ar_name, "//") == 0) {
1816 StringTableList = load_arstring_table(
1817 StringTableList, fd, arf, p_ar, filename);
1818 cmd = elf_next(arf);
1819 (void) elf_end(arf);
1820 continue;
1821 } else {
1822 if (a_flag) {
1823 (void) printf("%s[%s]:\n", filename,
1824 p_ar->ar_name);
1825 if (!p_flag && title == 0) {
1826 if (!v_flag)
1827 (void) printf(
1828 "\n\n\t\t\t***ARCHIVE HEADER***"
1829 "\n Date Uid Gid Mode Size Member Name\n\n");
1830 else
1831 (void) printf(
1832 "\n\n\t\t\t***ARCHIVE HEADER***"
1833 "\n Date Uid Gid Mode Size Member Name\n\n");
1834 title = 1;
1835 }
1836 if (!v_flag) {
1837 (void) printf(
1838 "\t0x%.8lx %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1839 p_ar->ar_date, (int)p_ar->ar_uid,
1840 (int)p_ar->ar_gid,
1841 (int)p_ar->ar_mode,
1842 p_ar->ar_size, p_ar->ar_name);
1843 } else {
1844 if ((strftime(buf, DATESIZE,
1845 "%b %d %H:%M:%S %Y",
1846 localtime(
1847 &(p_ar->ar_date)))) == 0) {
1848 (void) fprintf(stderr,
1849 "%s: %s: don't have enough space to store the date\n", prog_name, filename);
1850 exit(1);
1851 }
1852 (void) printf(
1853 "\t%s %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1854 buf, (int)p_ar->ar_uid,
1855 (int)p_ar->ar_gid,
1856 (int)p_ar->ar_mode,
1857 p_ar->ar_size, p_ar->ar_name);
1858 }
1859 }
1860 }
1861 cmd = elf_next(arf);
1862 (void) elf_end(arf);
1863 } /* end while */
1864
1865 err = elf_errno();
1866 if (err != 0) {
1867 (void) fprintf(stderr,
1868 "%s: %s: %s\n", prog_name, filename, elf_errmsg(err));
1869 }
1870 }
1871
1872 /*
1873 * Process member files of an archive. This function provides
1874 * a loop through an archive equivalent the processing of
1875 * each_file for individual object files.
1876 */
1877 static void
1878 dump_ar_files(int fd, Elf *elf_file, char *filename)
1879 {
1880 Elf_Arhdr *p_ar;
1881 Elf *arf;
1882 Elf_Cmd cmd;
1883 Elf_Kind file_type;
1884 GElf_Ehdr elf_head;
1885 char *fullname;
1886
1887 cmd = ELF_C_READ;
1888 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1889 size_t len;
1890
1891 p_ar = elf_getarhdr(arf);
1892 if (p_ar == NULL) {
1893 (void) fprintf(stderr, "%s: %s: %s\n",
1894 prog_name, filename, elf_errmsg(-1));
1895 return;
1896 }
1897 if (p_ar->ar_name[0] == '/') {
1898 cmd = elf_next(arf);
1899 (void) elf_end(arf);
1900 continue;
1901 }
1902
1903 len = strlen(filename) + strlen(p_ar->ar_name) + 3;
1904 if ((fullname = malloc(len)) == NULL)
1905 return;
1906 (void) snprintf(fullname, len, "%s[%s]", filename,
1907 p_ar->ar_name);
1908 (void) printf("\n%s:\n", fullname);
1909 file_type = elf_kind(arf);
1910 if (file_type == ELF_K_ELF) {
1911 if (dump_elf_header(arf, fullname, &elf_head) == NULL)
1912 return;
1913 if (o_flag)
1914 dump_exec_header(arf,
1915 (unsigned)elf_head.e_phnum, fullname);
1916 if (x_flag)
1917 dump_section_table(arf, &elf_head, fullname);
1918 } else {
1919 (void) fprintf(stderr, "%s: %s: invalid file type\n",
1920 prog_name, fullname);
1921 cmd = elf_next(arf);
1922 (void) elf_end(arf);
1923 continue;
1924 }
1925
1926 cmd = elf_next(arf);
1927 (void) elf_end(arf);
1928 } /* end while */
1929 }
1930
1931 /*
1932 * Takes a filename as input. Test first for a valid version
1933 * of libelf.a and exit on error. Process each valid file
1934 * or archive given as input on the command line. Check
1935 * for file type. If it is an archive, process the archive-
1936 * specific options first, then files within the archive.
1937 * If it is an ELF object file, process it; otherwise
1938 * warn that it is an invalid file type.
1939 * All options except the archive-specific and program
1940 * execution header are processed in the function, dump_section_table.
1941 */
1942 static void
1943 each_file(char *filename)
1944 {
1945 Elf *elf_file;
1946 GElf_Ehdr elf_head;
1947 int fd;
1948 Elf_Kind file_type;
1949
1950 struct stat buf;
1951
1952 Elf_Cmd cmd;
1953 errno = 0;
1954
1955 if (stat(filename, &buf) == -1) {
1956 int err = errno;
1957 (void) fprintf(stderr, "%s: %s: %s", prog_name, filename,
1958 strerror(err));
1959 return;
1960 }
1961
1962 if ((fd = open((filename), O_RDONLY)) == -1) {
1963 (void) fprintf(stderr, "%s: %s: cannot read\n", prog_name,
1964 filename);
1965 return;
1966 }
1967 cmd = ELF_C_READ;
1968 if ((elf_file = elf_begin(fd, cmd, (Elf *)0)) == NULL) {
1969 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1970 elf_errmsg(-1));
1971 return;
1972 }
1973
1974 file_type = elf_kind(elf_file);
1975 if (file_type == ELF_K_AR) {
1976 if (a_flag || g_flag) {
1977 dump_ar_hdr(fd, elf_file, filename);
1978 elf_file = elf_begin(fd, cmd, (Elf *)0);
1979 }
1980 if (z_flag)
1981 dump_ar_files(fd, elf_file, filename);
1982 } else {
1983 if (file_type == ELF_K_ELF) {
1984 (void) printf("\n%s:\n", filename);
1985 if (dump_elf_header(elf_file, filename, &elf_head)) {
1986 if (o_flag)
1987 dump_exec_header(elf_file,
1988 (unsigned)elf_head.e_phnum,
1989 filename);
1990 if (x_flag)
1991 dump_section_table(elf_file,
1992 &elf_head, filename);
1993 }
1994 } else {
1995 (void) fprintf(stderr, "%s: %s: invalid file type\n",
1996 prog_name, filename);
1997 }
1998 }
1999 (void) elf_end(elf_file);
2000 (void) close(fd);
2001 }
2002
2003 /*
2004 * Sets up flags for command line options given and then
2005 * calls each_file() to process each file.
2006 */
2007 int
2008 main(int argc, char *argv[], char *envp[])
2009 {
2010 char *optstr = OPTSTR; /* option string used by getopt() */
2011 int optchar;
2012
2013 /*
2014 * Check for a binary that better fits this architecture.
2015 */
2016 (void) conv_check_native(argv, envp);
2017
2018 prog_name = argv[0];
2019
2020 (void) setlocale(LC_ALL, "");
2021 while ((optchar = getopt(argc, argv, optstr)) != -1) {
2022 switch (optchar) {
2023 case 'a':
2024 a_flag = 1;
2025 x_flag = 1;
2026 break;
2027 case 'g':
2028 g_flag = 1;
2029 x_flag = 1;
2030 break;
2031 case 'v':
2032 v_flag = 1;
2033 break;
2034 case 'p':
2035 p_flag = 1;
2036 break;
2037 case 'f':
2038 f_flag = 1;
2039 z_flag = 1;
2040 break;
2041 case 'o':
2042 o_flag = 1;
2043 z_flag = 1;
2044 break;
2045 case 'h':
2046 h_flag = 1;
2047 x_flag = 1;
2048 z_flag = 1;
2049 break;
2050 case 's':
2051 s_flag = 1;
2052 x_flag = 1;
2053 z_flag = 1;
2054 break;
2055 case 'd':
2056 d_flag = 1;
2057 x_flag = 1;
2058 z_flag = 1;
2059 set_range(optarg, &d_low, &d_hi);
2060 break;
2061 case 'n':
2062 n_flag++;
2063 x_flag = 1;
2064 z_flag = 1;
2065 name = optarg;
2066 break;
2067 case 'r':
2068 r_flag = 1;
2069 x_flag = 1;
2070 z_flag = 1;
2071 break;
2072 case 't':
2073 t_flag = 1;
2074 x_flag = 1;
2075 z_flag = 1;
2076 break;
2077 case 'C':
2078 C_flag = 1;
2079 t_flag = 1;
2080 x_flag = 1;
2081 z_flag = 1;
2082 break;
2083 case 'T':
2084 T_flag = 1;
2085 x_flag = 1;
2086 z_flag = 1;
2087 set_range(optarg, &T_low, &T_hi);
2088 break;
2089 case 'c':
2090 c_flag = 1;
2091 x_flag = 1;
2092 z_flag = 1;
2093 break;
2094 case 'L':
2095 L_flag = 1;
2096 x_flag = 1;
2097 z_flag = 1;
2098 break;
2099 case 'V':
2100 V_flag = 1;
2101 (void) fprintf(stderr, "dump: %s %s\n",
2102 (const char *)SGU_PKG,
2103 (const char *)SGU_REL);
2104 break;
2105 case '?':
2106 errflag += 1;
2107 break;
2108 default:
2109 break;
2110 }
2111 }
2112
2113 if (errflag || (optind >= argc) || (!z_flag && !x_flag)) {
2114 if (!(V_flag && (argc == 2))) {
2115 usage();
2116 exit(269);
2117 }
2118 }
2119
2120 if (elf_version(EV_CURRENT) == EV_NONE) {
2121 (void) fprintf(stderr, "%s: libelf is out of date\n",
2122 prog_name);
2123 exit(101);
2124 }
2125
2126 while (optind < argc) {
2127 each_file(argv[optind]);
2128 optind++;
2129 }
2130 return (0);
2131 }