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 * Copyright 2018, Joyent, Inc.
28 */
29
30 /* Get definitions for the relocation types supported. */
31 #define ELF_TARGET_ALL
32
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <locale.h>
36 #include <unistd.h>
37 #include <libelf.h>
38 #include <sys/link.h>
39 #include <sys/elf.h>
40 #include <sys/machelf.h>
41 #include <fcntl.h>
42 #include <sys/stat.h>
43 #include <errno.h>
44 #include <string.h>
45 #include "sgs.h"
46 #include "conv.h"
47 #include "dump.h"
48
49
50 #define OPTSTR "agcd:fhn:oprstvCLT:V?" /* option string for getopt() */
51
52 const char *UNKNOWN = "<unknown>";
53
54 static SCNTAB *p_symtab, *p_head_scns, *p_dynsym;
55
56 static int
57 x_flag = 0, /* option requires section header table */
58 z_flag = 0, /* process files within an archive */
59 rn_flag = 0; /* dump named relocation information */
60
61 static int
62 /* flags: ?_flag corresponds to ? option */
63 a_flag = 0, /* dump archive header of each member of archive */
64 g_flag = 0, /* dump archive symbol table */
65 c_flag = 0, /* dump the string table */
66 d_flag = 0, /* dump range of sections */
67 f_flag = 0, /* dump each file header */
68 h_flag = 0, /* dump section headers */
69 n_flag = 0, /* dump named section */
70 o_flag = 0, /* dump each program execution header */
71 r_flag = 0, /* dump relocation information */
72 s_flag = 0, /* dump section contents */
73 t_flag = 0, /* dump symbol table entries */
74 C_flag = 0, /* dump decoded C++ symbol names */
75 L_flag = 0, /* dump dynamic linking information */
76 T_flag = 0, /* dump symbol table range */
77 V_flag = 0; /* dump version information */
78
79 int p_flag = 0, /* suppress printing of headings */
80 v_flag = 0; /* print information in verbose form */
81
82 static int
83 d_low = 0, /* range for use with -d */
84 d_hi = 0,
85 d_num = 0;
86
87 static int
88 T_low = 0, /* range for use with -T */
89 T_hi = 0,
90 T_num = 0;
91
92 static char *name = NULL; /* for use with -n option */
93 char *prog_name;
94 static int errflag = 0;
95
96 static struct stab_list_s {
97 struct stab_list_s *next;
98 char *strings;
99 size_t size;
100 } *StringTableList = (void *)0;
101
102 extern void ar_sym_read();
103 extern void dump_exec_header();
104
105
106 /*
107 * Get the section descriptor and set the size of the
108 * data returned. Data is byte-order converted.
109 */
110 void *
111 get_scndata(Elf_Scn *fd_scn, size_t *size)
112 {
113 Elf_Data *p_data;
114
115 p_data = 0;
116 if ((p_data = elf_getdata(fd_scn, p_data)) == 0 ||
117 p_data->d_size == 0) {
118 return (NULL);
119 }
120 *size = p_data->d_size;
121 return (p_data->d_buf);
122 }
123
124 /*
125 * Get the section descriptor and set the size of the
126 * data returned. Data is raw (i.e., not byte-order converted).
127 */
128 static void *
129 get_rawscn(Elf_Scn *fd_scn, size_t *size)
130 {
131 Elf_Data *p_data;
132
133 p_data = 0;
134 if ((p_data = elf_rawdata(fd_scn, p_data)) == 0 ||
135 p_data->d_size == 0) {
136 return (NULL);
137 }
138
139 *size = p_data->d_size;
140 return (p_data->d_buf);
141 }
142
143 /*
144 * Print out a usage message in short form when program is invoked
145 * with insufficient or no arguments, and in long form when given
146 * either a ? or an invalid option.
147 */
148 static void
149 usage()
150 {
151 (void) fprintf(stderr,
152 "Usage: %s [-%s] file(s) ...\n", prog_name, OPTSTR);
153 if (errflag) {
154 (void) fprintf(stderr,
155 "\t\t[-a dump archive header of each member of archive]\n\
156 [-g dump archive global symbol table]\n\
157 [-c dump the string table]\n\
158 [-d dump range of sections]\n\
159 [-f dump each file header]\n\
160 [-h dump section headers]\n\
161 [-n dump named section]\n\
162 [-o dump each program execution header]\n\
163 [-p suppress printing of headings]\n\
164 [-r dump relocation information]\n\
165 [-s dump section contents]\n\
166 [-t dump symbol table entries]\n\
167 [-v print information in verbose form]\n\
168 [-C dump decoded C++ symbol names]\n\
169 [-L dump the .dynamic structure]\n\
170 [-T dump symbol table range]\n\
171 [-V dump version information]\n");
172 }
173 }
174
175 /*
176 * Set a range. Input is a character string, a lower
177 * bound and an upper bound. This function converts
178 * a character string into its correct integer values,
179 * setting the first value as the lower bound, and
180 * the second value as the upper bound. If more values
181 * are given they are ignored with a warning.
182 */
183 static void
184 set_range(char *s, int *low, int *high)
185 {
186 char *w;
187 char *lasts;
188
189 while ((w = strtok_r(s, ",", &lasts)) != NULL) {
190 if (!(*low))
191 /* LINTED */
192 *low = (int)atol(w);
193 else
194 if (!(*high))
195 /* LINTED */
196 *high = (int)atol(w);
197 else {
198 (void) fprintf(stderr,
199 "%s: too many arguments - %s ignored\n",
200 prog_name, w);
201 return;
202 }
203 s = NULL;
204 } /* end while */
205 }
206
207
208 /*
209 * Print static shared library information.
210 */
211 static void
212 print_static(SCNTAB *l_scns, char *filename)
213 {
214 size_t section_size;
215 unsigned char *strtab;
216 unsigned char *path, buf[1024];
217 unsigned long *temp;
218 unsigned long total, topath;
219
220 (void) printf("\n **** STATIC SHARED LIBRARY INFORMATION ****\n");
221 (void) printf("\n%s:\n", filename);
222 (void) printf("\t");
223 section_size = 0;
224 if ((strtab = (unsigned char *)
225 get_scndata(l_scns->p_sd, §ion_size)) == NULL) {
226 return;
227 }
228
229 while (section_size != 0) {
230 /* LINTED */
231 temp = (unsigned long *)strtab;
232 total = temp[0];
233 topath = temp[1];
234 path = strtab + (topath*sizeof (long));
235 (void) strncpy((char *)buf, (char *)path,
236 (total - topath)*sizeof (long));
237 (void) fprintf(stdout, "%s\n", buf);
238 strtab += total*sizeof (long);
239 section_size -= (total*sizeof (long));
240 }
241 }
242
243 /*
244 * Print raw data in hexidecimal. Input is the section data to
245 * be printed out and the size of the data. Output is relative
246 * to a table lookup in dumpmap.h.
247 */
248 static void
249 print_rawdata(unsigned char *p_sec, size_t size)
250 {
251 size_t j;
252 size_t count;
253
254 count = 1;
255
256 (void) printf("\t");
257 for (j = size/sizeof (short); j != 0; --j, ++count) {
258 (void) printf("%.2x %.2x ", p_sec[0], p_sec[1]);
259 p_sec += 2;
260 if (count == 12) {
261 (void) printf("\n\t");
262 count = 0;
263 }
264 }
265
266 /*
267 * take care of last byte if odd byte section
268 */
269 if ((size & 0x1L) == 1L)
270 (void) printf("%.2x", *p_sec);
271 (void) printf("\n");
272 }
273
274
275
276 /*
277 * Print relocation data of type SHT_RELA
278 * If d_flag, print data corresponding only to
279 * the section or range of sections specified.
280 * If n_flag, print data corresponding only to
281 * the named section.
282 */
283 static void
284 print_rela(Elf *elf_file, SCNTAB *p_scns, Elf_Data *rdata, Elf_Data *sym_data,
285 GElf_Ehdr * p_ehdr, size_t reloc_size, size_t sym_size, char *filename,
286 SCNTAB *reloc_symtab)
287 {
288 GElf_Rela rela;
289 GElf_Sym sym;
290 size_t no_entries;
291 size_t rel_entsize;
292 size_t no_syms;
293 int type, symid;
294 static int n_title = 0;
295 int ndx = 0;
296 char *sym_name;
297 int adj = 0;
298
299 if (gelf_getclass(elf_file) == ELFCLASS64)
300 adj = 8;
301
302 rel_entsize = p_scns->p_shdr.sh_entsize;
303 if ((rel_entsize == 0) ||
304 (rel_entsize > p_scns->p_shdr.sh_size)) {
305 rel_entsize = gelf_fsize(elf_file, ELF_T_RELA, 1,
306 EV_CURRENT);
307 }
308 no_entries = reloc_size / rel_entsize;
309
310 no_syms = sym_size / gelf_fsize(elf_file, ELF_T_SYM, 1, EV_CURRENT);
311 while (no_entries--) {
312 (void) gelf_getrela(rdata, ndx, &rela);
313 /* LINTED */
314 type = (int)GELF_R_TYPE(rela.r_info);
315 /* LINTED */
316 symid = (int)GELF_R_SYM(rela.r_info);
317 /* LINTED */
318 if ((symid > (no_syms - 1)) || (symid < 0)) {
319 (void) fprintf(stderr, "%s: %s: invalid symbol table "
320 "offset - %d - in %s\n", prog_name, filename,
321 symid, p_scns->scn_name);
322 ndx++;
323 continue;
324 }
325 (void) gelf_getsym(sym_data, symid, &sym);
326 sym_name = (char *)elf_strptr(elf_file,
327 reloc_symtab->p_shdr.sh_link, sym.st_name);
328 if (sym_name == NULL)
329 sym_name = (char *)UNKNOWN;
330 if (r_flag && rn_flag) {
331 if (strcmp(name, p_scns->scn_name) != 0) {
332 ndx++;
333 continue;
334 }
335 if (!n_title) {
336 (void) printf("\n%s:\n", p_scns->scn_name);
337 (void) printf("%-*s%-*s%-*s%s\n\n",
338 12 + adj, "Offset", 22, "Symndx",
339 16, "Type", "Addend");
340 n_title = 1;
341 }
342 }
343 if (d_flag) {
344 if (!d_hi)
345 d_hi = d_low;
346 if ((symid < d_low) || (symid > d_hi)) {
347 ndx++;
348 continue;
349 }
350 }
351
352 (void) printf("%-#*llx", 12 + adj, EC_XWORD(rela.r_offset));
353 if (!v_flag) {
354 (void) printf("%-22d%-18d", symid, type);
355 } else {
356 Conv_inv_buf_t inv_buf;
357
358 if (strlen(sym_name)) {
359 size_t len = strlen(sym_name) + 1;
360 char tmpstr[10];
361 if (len > 22) {
362 (void) sprintf(tmpstr, "%%-%ds",
363 /* LINTED */
364 (int)len);
365 /*LINTED: E_SEC_PRINTF_VAR_FMT*/
366 (void) printf(tmpstr, sym_name);
367 } else
368 (void) printf("%-22s", sym_name);
369 } else {
370 (void) printf("%-22d", symid);
371 }
372 (void) printf("%-20s",
373 conv_reloc_type(p_ehdr->e_machine,
374 type, DUMP_CONVFMT, &inv_buf));
375 }
376 (void) printf("%lld\n", EC_SXWORD(rela.r_addend));
377 ndx++;
378 }
379 }
380
381 /*
382 * Print relocation data of type SHT_REL.
383 * If d_flag, print data corresponding only to
384 * the section or range of sections specified.
385 * If n_flag, print data corresponding only to
386 * the named section.
387 */
388 static void
389 print_rel(Elf *elf_file, SCNTAB *p_scns, Elf_Data *rdata, Elf_Data *sym_data,
390 GElf_Ehdr *p_ehdr, size_t reloc_size, size_t sym_size, char *filename,
391 SCNTAB *reloc_symtab)
392 {
393 GElf_Rel rel;
394 GElf_Sym sym;
395 size_t no_entries;
396 size_t rel_entsize;
397 int type, symid;
398 size_t no_syms;
399 static int n_title = 0;
400 int ndx = 0;
401 char *sym_name;
402 int adj = 0;
403
404 if (gelf_getclass(elf_file) == ELFCLASS64)
405 adj = 8;
406
407 rel_entsize = p_scns->p_shdr.sh_entsize;
408 if ((rel_entsize == 0) ||
409 (rel_entsize > p_scns->p_shdr.sh_size)) {
410 rel_entsize = gelf_fsize(elf_file, ELF_T_REL, 1,
411 EV_CURRENT);
412 }
413 no_entries = reloc_size / rel_entsize;
414
415 no_syms = sym_size / gelf_fsize(elf_file, ELF_T_SYM, 1, EV_CURRENT);
416 while (no_entries--) {
417 (void) gelf_getrel(rdata, ndx, &rel);
418 /* LINTED */
419 type = (int)GELF_R_TYPE(rel.r_info);
420 /* LINTED */
421 symid = (int)GELF_R_SYM(rel.r_info);
422 /* LINTED */
423 if ((symid > (no_syms - 1)) || (symid < 0)) {
424 (void) fprintf(stderr, "%s: %s: invalid symbol table "
425 "offset - %d - in %s\n", prog_name, filename,
426 symid, p_scns->scn_name);
427 ndx++;
428 continue;
429 }
430 (void) gelf_getsym(sym_data, symid, &sym);
431 sym_name = (char *)elf_strptr(elf_file,
432 reloc_symtab->p_shdr.sh_link, sym.st_name);
433 if (sym_name == NULL)
434 sym_name = (char *)UNKNOWN;
435 if (r_flag && rn_flag) {
436 if (strcmp(name, p_scns->scn_name) != 0) {
437 ndx++;
438 continue;
439 }
440 if (!n_title) {
441 (void) printf("\n%s:\n", p_scns->scn_name);
442 (void) printf("%-*s%-*s%s\n\n",
443 12 + adj, "Offset", 20, "Symndx", "Type");
444 n_title = 1;
445 }
446 }
447 if (d_flag) {
448 if (!d_hi)
449 d_hi = d_low;
450 if ((symid < d_low) || (symid > d_hi)) {
451 ndx++;
452 continue;
453 }
454 }
455
456 (void) printf("%-#*llx", 12 + adj, EC_ADDR(rel.r_offset));
457 if (!v_flag) {
458 (void) printf("%-20d%-18d", symid, type);
459 } else {
460 Conv_inv_buf_t inv_buf;
461
462 if (strlen(sym_name))
463 (void) printf("%-20s", sym_name);
464 else {
465 (void) printf("%-20d", sym.st_name);
466 }
467 (void) printf("%-20s",
468 conv_reloc_type(p_ehdr->e_machine,
469 type, DUMP_CONVFMT, &inv_buf));
470 }
471 (void) printf("\n");
472 ndx++;
473 }
474 }
475
476 /* demangle C++ names */
477 static char *
478 demangled_name(char *s)
479 {
480 static char *buf = NULL;
481 size_t buflen = 0;
482 char *dn;
483 size_t len;
484
485 dn = (char *)conv_demangle_name(s);
486
487 /*
488 * If not demangled, just return the symbol name
489 */
490 if (dn == s)
491 return (s);
492
493 len = strlen(dn) + strlen(s) + 4;
494
495 if (buflen < len) {
496 free(buf);
497 if ((buf = malloc(len)) == NULL)
498 return (s);
499 buflen = len;
500 }
501
502 /*
503 * Demangled. Format it
504 */
505 (void) snprintf(buf, buflen, "%s\t[%s]", dn, s);
506 free(dn);
507 return (buf);
508 }
509
510 /*
511 * Print the symbol table. Input is an ELF file descriptor, a
512 * pointer to the symbol table SCNTAB structure,
513 * the number of symbols, a range of symbols to print,
514 * an index which is the number of the
515 * section in the file, and the filename. The number of sections,
516 * the range, and the index are set in
517 * dump_symbol_table, depending on whether -n or -T were set.
518 */
519 static void
520 print_symtab(Elf *elf_file, SCNTAB *p_symtab, Elf_Data *sym_data,
521 long range, int index)
522 {
523 GElf_Sym sym;
524 int adj = 0; /* field adjustment for elf64 */
525 Elf32_Word *symshndx = 0;
526 unsigned int nosymshndx = 0;
527 Conv_inv_buf_t inv_buf;
528
529
530 if (gelf_getclass(elf_file) == ELFCLASS64)
531 adj = 8;
532
533 while (range > 0) {
534 char *sym_name = NULL;
535 int type, bind;
536 int specsec;
537 unsigned int shndx;
538
539 (void) gelf_getsym(sym_data, index, &sym);
540 type = (int)GELF_ST_TYPE(sym.st_info);
541 bind = (int)GELF_ST_BIND(sym.st_info);
542
543 if ((sym.st_shndx == SHN_XINDEX) &&
544 (symshndx == 0) && (nosymshndx == 0)) {
545 Elf_Scn *_scn;
546 GElf_Shdr _shdr;
547 size_t symscnndx;
548
549 symscnndx = elf_ndxscn(p_symtab->p_sd);
550 _scn = 0;
551 while ((_scn = elf_nextscn(elf_file, _scn)) != 0) {
552 if (gelf_getshdr(_scn, &_shdr) == 0)
553 break;
554 if ((_shdr.sh_type == SHT_SYMTAB_SHNDX) &&
555 /* LINTED */
556 (_shdr.sh_link == (GElf_Word)symscnndx)) {
557 Elf_Data *_data;
558
559 if ((_data = elf_getdata(_scn, 0)) == 0)
560 continue;
561
562 symshndx = (Elf32_Word *)_data->d_buf;
563 nosymshndx = 0;
564 break;
565 }
566 }
567 nosymshndx = 1;
568 }
569
570 if ((symshndx) && (sym.st_shndx == SHN_XINDEX)) {
571 shndx = symshndx[index];
572 specsec = 0;
573 } else {
574 shndx = sym.st_shndx;
575 if ((sym.st_shndx == SHN_UNDEF) ||
576 (sym.st_shndx >= SHN_LORESERVE))
577 specsec = 1;
578 else
579 specsec = 0;
580 }
581
582
583 (void) printf("[%d]\t ", index++);
584
585 if (v_flag && (type == STT_SPARC_REGISTER)) {
586 /*
587 * The strings "REG_G1" through "REG_G7" are intended
588 * to be consistent with output from elfdump(1).
589 */
590 (void) printf("%-*s", 12 + adj,
591 conv_sym_SPARC_value(sym.st_value,
592 DUMP_CONVFMT, &inv_buf));
593 } else {
594 (void) printf("0x%-*llx", 10 + adj,
595 EC_ADDR(sym.st_value));
596 }
597
598 (void) printf("%-*lld", 9 + adj, EC_XWORD(sym.st_size));
599
600 if (!v_flag) {
601 (void) printf("%d\t\t%d\t%d\t%#x\t",
602 type, bind, (int)sym.st_other, (int)shndx);
603 } else {
604 GElf_Ehdr p_ehdr;
605 (void) gelf_getehdr(elf_file, &p_ehdr);
606 (void) printf("%s\t",
607 conv_sym_info_type(p_ehdr.e_machine, type,
608 DUMP_CONVFMT, &inv_buf));
609 (void) printf("%s",
610 conv_sym_info_bind(bind, DUMP_CONVFMT, &inv_buf));
611 (void) printf("\t %d\t", EC_WORD(sym.st_other));
612
613 if (specsec)
614 (void) printf("%s",
615 conv_sym_shndx(p_ehdr.e_ident[EI_OSABI],
616 p_ehdr.e_machine, shndx,
617 CONV_FMT_DECIMAL, &inv_buf));
618 else
619 (void) printf("%d", EC_WORD(shndx));
620 (void) printf("\t");
621 }
622
623 /* support machines where NULL-deref causes core dump */
624 if (sym.st_name == 0)
625 sym_name = (char *)UNKNOWN;
626 else
627 if (C_flag)
628 sym_name = demangled_name(
629 (char *)elf_strptr(elf_file,
630 p_symtab->p_shdr.sh_link,
631 sym.st_name));
632 else
633 sym_name = (char *)elf_strptr(elf_file,
634 p_symtab->p_shdr.sh_link, sym.st_name);
635 if (sym_name == NULL)
636 sym_name = (char *)UNKNOWN;
637 (void) printf("%s\n", sym_name);
638
639 range--;
640 } /* end while */
641 }
642
643 /*
644 * Print the section header table. Input is the SCNTAB structure,
645 * the number of sections, an index which is the number of the
646 * section in the file, and the filename. The values of the SCNTAB
647 * structure, the number of sections, and the index are set in
648 * dump_shdr depending on whether the -n or -d modifiers were set.
649 */
650 static void
651 print_shdr(Elf *elf_file, SCNTAB *s, int num_scns, int index)
652 {
653 SCNTAB *p;
654 int num;
655 int field;
656 GElf_Ehdr p_ehdr;
657
658 if (gelf_getclass(elf_file) == ELFCLASS64)
659 field = 21;
660 else
661 field = 13;
662
663 p = s;
664 (void) gelf_getehdr(elf_file, &p_ehdr);
665
666 for (num = 0; num < num_scns; num++, p++) {
667 (void) printf("[%d]\t", index++);
668 if (!v_flag) {
669 (void) printf("%u\t%llu\t",
670 EC_WORD(p->p_shdr.sh_type),
671 EC_XWORD(p->p_shdr.sh_flags));
672 } else {
673 Conv_inv_buf_t inv_buf;
674
675 /*LINTED: E_SEC_PRINTF_VAR_FMT*/
676 (void) printf(conv_sec_type(
677 p_ehdr.e_ident[EI_OSABI], p_ehdr.e_machine,
678 p->p_shdr.sh_type, DUMP_CONVFMT, &inv_buf));
679 (void) printf(" ");
680
681 if (p->p_shdr.sh_flags & SHF_WRITE)
682 (void) printf("W");
683 else
684 (void) printf("-");
685 if (p->p_shdr.sh_flags & SHF_ALLOC)
686 (void) printf("A");
687 else
688 (void) printf("-");
689 if (p->p_shdr.sh_flags & SHF_EXECINSTR)
690 (void) printf("I");
691 else
692 (void) printf("-");
693
694 if (p->p_shdr.sh_flags & SHF_ORDERED)
695 (void) printf("O");
696 if (p->p_shdr.sh_flags & SHF_EXCLUDE)
697 (void) printf("E");
698
699 (void) printf("\t");
700
701 }
702 (void) printf("%-#*llx%-#*llx%-#*llx%s%s\n",
703 field, EC_ADDR(p->p_shdr.sh_addr),
704 field, EC_OFF(p->p_shdr.sh_offset),
705 field, EC_XWORD(p->p_shdr.sh_size),
706 /* compatibility: tab for elf32 */
707 (field == 13) ? "\t" : " ", p->scn_name);
708
709 (void) printf("\t%u\t%u\t%-#*llx%-#*llx\n\n",
710 EC_WORD(p->p_shdr.sh_link),
711 EC_WORD(p->p_shdr.sh_info),
712 field, EC_XWORD(p->p_shdr.sh_addralign),
713 field, EC_XWORD(p->p_shdr.sh_entsize));
714 }
715 }
716
717 /*
718 * Check that a range of numbers is valid. Input is
719 * a lower bound, an upper bound, a boundary condition,
720 * and the filename. Negative numbers and numbers greater
721 * than the bound are invalid. low must be smaller than hi.
722 * The returned integer is the number of items in the
723 * range if it is valid and -1 otherwise.
724 */
725 static int
726 check_range(int low, int hi, size_t bound, char *filename)
727 {
728 if (((size_t)low > bound) || (low <= 0)) {
729 (void) fprintf(stderr,
730 "%s: %s: number out of range, %d\n",
731 prog_name, filename, low);
732 return (-1);
733 }
734 if (((size_t)hi > bound) || (hi < 0)) {
735 (void) fprintf(stderr,
736 "%s: %s: number out of range, %d\n",
737 prog_name, filename, hi);
738 return (-1);
739 }
740
741 if (hi && (low > hi)) {
742 (void) fprintf(stderr,
743 "%s: %s: invalid range, %d,%d\n",
744 prog_name, filename, low, hi);
745 return (-1);
746 }
747 if (hi)
748 return (hi - low + 1);
749 else
750 return (1);
751 }
752
753 /*
754 * Print relocation information. Since this information is
755 * machine dependent, new sections must be added for each machine
756 * that is supported. Input is an ELF file descriptor, the ELF header,
757 * the SCNTAB structure, the number of sections, and a filename.
758 * Set up necessary information to print relocation information
759 * and call the appropriate print function depending on the
760 * type of relocation information. If the symbol table is
761 * absent, no relocation data is processed. Input is an
762 * ELF file descriptor, the ELF header, the SCNTAB structure,
763 * and the filename. Set range of d_flag and name if n_flag.
764 */
765 static void
766 dump_reloc_table(Elf *elf_file, GElf_Ehdr *p_ehdr,
767 SCNTAB *p_scns, int num_scns, char *filename)
768 {
769 Elf_Data *rel_data;
770 Elf_Data *sym_data;
771 size_t sym_size;
772 size_t reloc_size;
773 SCNTAB *reloc_symtab;
774 SCNTAB *head_scns;
775 int r_title = 0;
776 int adj = 0;
777 size_t shnum;
778
779 if (gelf_getclass(elf_file) == ELFCLASS64)
780 adj = 8;
781
782 if ((!p_flag) && (!r_title)) {
783 (void) printf("\n **** RELOCATION INFORMATION ****\n");
784 r_title = 1;
785 }
786
787 while (num_scns-- > 0) {
788 if ((p_scns->p_shdr.sh_type != SHT_RELA) &&
789 (p_scns->p_shdr.sh_type != SHT_REL)) {
790 p_scns++;
791 continue;
792 }
793
794 head_scns = p_head_scns;
795
796 if (elf_getshdrnum(elf_file, &shnum) == -1) {
797 (void) fprintf(stderr,
798 "%s: %s: elf_getshdrnum failed: %s\n",
799 prog_name, filename, elf_errmsg(-1));
800 return;
801 }
802
803 if ((p_scns->p_shdr.sh_link == 0) ||
804 /* LINTED */
805 (p_scns->p_shdr.sh_link >= (GElf_Word)shnum)) {
806 (void) fprintf(stderr, "%s: %s: invalid sh_link field: "
807 "section #: %d sh_link: %d\n",
808 /* LINTED */
809 prog_name, filename, (int)elf_ndxscn(p_scns->p_sd),
810 (int)p_scns->p_shdr.sh_link);
811 return;
812 }
813 head_scns += (p_scns->p_shdr.sh_link -1);
814
815 if (head_scns->p_shdr.sh_type == SHT_SYMTAB) {
816 reloc_symtab = p_symtab;
817 } else if (head_scns->p_shdr.sh_type == SHT_DYNSYM) {
818 reloc_symtab = p_dynsym;
819 } else {
820 (void) fprintf(stderr,
821 "%s: %s: could not get symbol table\n", prog_name, filename);
822 return;
823 }
824
825 sym_data = NULL;
826 sym_size = 0;
827 reloc_size = 0;
828
829 if ((sym_data = elf_getdata(reloc_symtab->p_sd, NULL)) == NULL) {
830 (void) fprintf(stderr,
831 "%s: %s: no symbol table data\n", prog_name, filename);
832 return;
833 }
834 sym_size = sym_data->d_size;
835
836 if (p_scns == NULL) {
837 (void) fprintf(stderr,
838 "%s: %s: no section table data\n", prog_name, filename);
839 return;
840 }
841
842 if (p_scns->p_shdr.sh_type == SHT_RELA) {
843 if (!n_flag && r_flag)
844 (void) printf("\n%s:\n", p_scns->scn_name);
845 if (!p_flag && (!n_flag && r_flag))
846 (void) printf("%-*s%-*s%-*s%s\n\n",
847 12 + adj, "Offset", 22, "Symndx",
848 18, "Type", "Addend");
849 if ((rel_data = elf_getdata(p_scns->p_sd, NULL)) == NULL) {
850 (void) fprintf(stderr,
851 "%s: %s: no relocation information\n", prog_name, filename);
852 return;
853 }
854 reloc_size = rel_data->d_size;
855
856 if (n_flag) {
857 rn_flag = 1;
858 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
859 reloc_size, sym_size, filename, reloc_symtab);
860 }
861 if (d_flag) {
862 rn_flag = 0;
863 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
864 reloc_size, sym_size, filename, reloc_symtab);
865 }
866 if (!n_flag && !d_flag)
867 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
868 reloc_size, sym_size, filename, reloc_symtab);
869 } else {
870 if (p_scns->p_shdr.sh_type == SHT_REL) {
871 if (!n_flag && r_flag)
872 (void) printf("\n%s:\n", p_scns->scn_name);
873 if (!p_flag && (!n_flag && r_flag)) {
874 (void) printf("%-*s%-*s%s\n\n",
875 12 + adj, "Offset", 20, "Symndx", "Type");
876 }
877 if ((rel_data = elf_getdata(p_scns->p_sd, NULL))
878 == NULL) {
879 (void) fprintf(stderr,
880 "%s: %s: no relocation information\n", prog_name, filename);
881 return;
882 }
883 reloc_size = rel_data->d_size;
884 if (n_flag) {
885 rn_flag = 1;
886 print_rel(elf_file, p_scns, rel_data, sym_data,
887 p_ehdr, reloc_size, sym_size,
888 filename, reloc_symtab);
889 }
890 if (d_flag) {
891 rn_flag = 0;
892 print_rel(elf_file, p_scns, rel_data, sym_data,
893 p_ehdr, reloc_size, sym_size,
894 filename, reloc_symtab);
895 }
896 if (!n_flag && !d_flag)
897 print_rel(elf_file, p_scns, rel_data, sym_data,
898 p_ehdr, reloc_size, sym_size,
899 filename, reloc_symtab);
900 }
901 }
902 p_scns++;
903 }
904 }
905
906 /*
907 * Print out the string tables. Input is an opened ELF file,
908 * the SCNTAB structure, the number of sections, and the filename.
909 * Since there can be more than one string table, all sections are
910 * examined and any with the correct type are printed out.
911 */
912 static void
913 dump_string_table(SCNTAB *s, int num_scns)
914 {
915 size_t section_size;
916 unsigned char *strtab;
917 int beg_of_string;
918 int counter = 0;
919 int str_off;
920 int i;
921
922 if (!p_flag) {
923 (void) printf("\n **** STRING TABLE INFORMATION ****\n");
924 }
925
926 for (i = 0; i < num_scns; i++, s++) {
927 if (s->p_shdr.sh_type != SHT_STRTAB)
928 continue;
929
930 str_off = 0;
931
932 if (!p_flag) {
933 (void) printf("\n%s:\n", s->scn_name);
934 (void) printf(" <offset> \tName\n");
935 }
936 section_size = 0;
937 if ((strtab = (unsigned char *)
938 get_scndata(s->p_sd, §ion_size)) == NULL) {
939 continue;
940 }
941
942 if (section_size != 0) {
943 (void) printf(" <%d> \t", str_off);
944 beg_of_string = 0;
945 while (section_size--) {
946 unsigned char c = *strtab++;
947
948 if (beg_of_string) {
949 (void) printf(" <%d> \t", str_off);
950 counter++;
951 beg_of_string = 0;
952 }
953 str_off++;
954 switch (c) {
955 case '\0':
956 (void) printf("\n");
957 beg_of_string = 1;
958 break;
959 default:
960 (void) putchar(c);
961 }
962 }
963 }
964 }
965 (void) printf("\n");
966 }
967
968 /*
969 * Print the symbol table. This function does not print the contents
970 * of the symbol table but sets up the parameters and then calls
971 * print_symtab to print the symbols. Calling another function to print
972 * the symbols allows both -T and -n to work correctly
973 * simultaneously. Input is an opened ELF file, a pointer to the
974 * symbol table SCNTAB structure, and the filename.
975 * Set the range of symbols to print if T_flag, and set
976 * name of symbol to print if n_flag.
977 */
978 static void
979 dump_symbol_table(Elf *elf_file, SCNTAB *p_symtab, char *filename)
980 {
981 Elf_Data *sym_data;
982 GElf_Sym T_range, n_range; /* for use with -T and -n */
983 size_t count = 0;
984 size_t sym_size;
985 int index = 1;
986 int found_it = 0;
987 int i;
988 int adj = 0; /* field adjustment for elf64 */
989
990 if (gelf_getclass(elf_file) == ELFCLASS64)
991 adj = 8;
992
993 if (p_symtab == NULL) {
994 (void) fprintf(stderr,
995 "%s: %s: could not get symbol table\n", prog_name, filename);
996 return;
997 }
998
999 /* get symbol table data */
1000 sym_data = NULL;
1001 sym_size = 0;
1002 if ((sym_data =
1003 elf_getdata(p_symtab->p_sd, NULL)) == NULL) {
1004 (void) printf("\n%s:\n", p_symtab->scn_name);
1005 (void) printf("No symbol table data\n");
1006 return;
1007 }
1008 sym_size = sym_data->d_size;
1009
1010 count = sym_size / p_symtab->p_shdr.sh_entsize;
1011
1012 if (n_flag && t_flag && !T_flag) {
1013 /* LINTED */
1014 for (i = 1; i < count; i++) {
1015 (void) gelf_getsym(sym_data, i, &n_range);
1016 if (strcmp(name, (char *)
1017 elf_strptr(elf_file,
1018 p_symtab->p_shdr.sh_link,
1019 n_range.st_name)) != 0) {
1020 continue;
1021 } else {
1022 found_it = 1;
1023 if (!p_flag) {
1024 (void) printf(
1025 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1026 (void) printf(
1027 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1028 12 + adj, "Value", 9 + adj, "Size");
1029 }
1030 (void) printf("\n%s:\n", p_symtab->scn_name);
1031 print_symtab(elf_file, p_symtab, sym_data,
1032 1, i);
1033 }
1034 } /* end for */
1035 if (!found_it) {
1036 (void) fprintf(stderr, "%s: %s: %s not found\n",
1037 prog_name, filename, name);
1038 }
1039 } else if (T_flag) {
1040 T_num = check_range(T_low, T_hi, count, filename);
1041 if (T_num < 0)
1042 return;
1043
1044 (void) gelf_getsym(sym_data, T_low-1, &T_range);
1045 index = T_low;
1046
1047 if (!p_flag) {
1048 (void) printf(
1049 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1050 (void) printf(
1051 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1052 12 + adj, "Value", 9 + adj, "Size");
1053 }
1054 (void) printf("\n%s:\n", p_symtab->scn_name);
1055 print_symtab(elf_file, p_symtab, sym_data, T_num, index);
1056 } else {
1057 if (!p_flag) {
1058 (void) printf(
1059 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1060 (void) printf(
1061 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1062 12 + adj, "Value", 9 + adj, "Size");
1063 }
1064 (void) printf("\n%s:\n", p_symtab->scn_name);
1065 print_symtab(elf_file, p_symtab, sym_data, count-1, 1);
1066 }
1067 }
1068
1069
1070 /*
1071 * Print dynamic linking information. Input is an ELF
1072 * file descriptor, the SCNTAB structure, the number of
1073 * sections, and the filename.
1074 */
1075 static void
1076 dump_dynamic(Elf *elf_file, SCNTAB *p_scns, int num_scns, char *filename)
1077 {
1078 #define pdyn_Fmtptr "%#llx"
1079
1080 Elf_Data *dyn_data;
1081 GElf_Dyn p_dyn;
1082 GElf_Phdr p_phdr;
1083 GElf_Ehdr p_ehdr;
1084 int index = 1;
1085 int lib_scns = num_scns;
1086 SCNTAB *l_scns = p_scns;
1087 int header_num = 0;
1088 const char *str;
1089
1090 (void) gelf_getehdr(elf_file, &p_ehdr);
1091
1092 if (!p_flag)
1093 (void) printf("\n **** DYNAMIC SECTION INFORMATION ****\n");
1094
1095 for (; num_scns > 0; num_scns--, p_scns++) {
1096 GElf_Word link;
1097 int ii;
1098
1099
1100 if (p_scns->p_shdr.sh_type != SHT_DYNAMIC)
1101 continue;
1102
1103 if (!p_flag) {
1104 (void) printf("%s:\n", p_scns->scn_name);
1105 (void) printf("[INDEX]\tTag Value\n");
1106 }
1107
1108 if ((dyn_data = elf_getdata(p_scns->p_sd, NULL)) == 0) {
1109 (void) fprintf(stderr, "%s: %s: no data in "
1110 "%s section\n", prog_name, filename,
1111 p_scns->scn_name);
1112 return;
1113 }
1114
1115 link = p_scns->p_shdr.sh_link;
1116 ii = 0;
1117
1118 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1119 while (p_dyn.d_tag != DT_NULL) {
1120 union {
1121 Conv_inv_buf_t inv;
1122 Conv_dyn_flag_buf_t dyn_flag;
1123 Conv_dyn_flag1_buf_t dyn_flag1;
1124 Conv_dyn_feature1_buf_t dyn_feature1;
1125 Conv_dyn_posflag1_buf_t dyn_posflag1;
1126 } conv_buf;
1127
1128 (void) printf("[%d]\t%-15.15s ", index++,
1129 conv_dyn_tag(p_dyn.d_tag,
1130 p_ehdr.e_ident[EI_OSABI], p_ehdr.e_machine,
1131 DUMP_CONVFMT, &conv_buf.inv));
1132
1133 /*
1134 * It would be nice to use a table driven loop
1135 * here, but the address space is too sparse
1136 * and irregular. A switch is simple and robust.
1137 */
1138 switch (p_dyn.d_tag) {
1139 /*
1140 * Items with an address value
1141 */
1142 case DT_PLTGOT:
1143 case DT_HASH:
1144 case DT_STRTAB:
1145 case DT_RELA:
1146 case DT_SYMTAB:
1147 case DT_INIT:
1148 case DT_FINI:
1149 case DT_REL:
1150 case DT_DEBUG:
1151 case DT_TEXTREL:
1152 case DT_JMPREL:
1153 case DT_INIT_ARRAY:
1154 case DT_FINI_ARRAY:
1155 case DT_INIT_ARRAYSZ:
1156 case DT_FINI_ARRAYSZ:
1157 case DT_PREINIT_ARRAY:
1158 case DT_PREINIT_ARRAYSZ:
1159 case DT_SUNW_RTLDINF:
1160 case DT_SUNW_CAP:
1161 case DT_SUNW_CAPINFO:
1162 case DT_SUNW_CAPCHAIN:
1163 case DT_SUNW_SYMTAB:
1164 case DT_SUNW_SYMSORT:
1165 case DT_SUNW_TLSSORT:
1166 case DT_PLTPAD:
1167 case DT_MOVETAB:
1168 case DT_SYMINFO:
1169 case DT_RELACOUNT:
1170 case DT_RELCOUNT:
1171 case DT_VERSYM:
1172 case DT_VERDEF:
1173 case DT_VERDEFNUM:
1174 case DT_VERNEED:
1175 (void) printf(pdyn_Fmtptr,
1176 EC_ADDR(p_dyn.d_un.d_ptr));
1177 break;
1178
1179 /*
1180 * Items with a string value
1181 */
1182 case DT_NEEDED:
1183 case DT_SONAME:
1184 case DT_RPATH:
1185 case DT_RUNPATH:
1186 case DT_SUNW_AUXILIARY:
1187 case DT_SUNW_FILTER:
1188 case DT_CONFIG:
1189 case DT_DEPAUDIT:
1190 case DT_AUDIT:
1191 case DT_AUXILIARY:
1192 case DT_USED:
1193 case DT_FILTER:
1194 if (v_flag) { /* Look up the string */
1195 str = (char *)elf_strptr(elf_file, link,
1196 p_dyn.d_un.d_ptr);
1197 if (!(str && *str))
1198 str = (char *)UNKNOWN;
1199 (void) printf("%s", str);
1200 } else { /* Show the address */
1201 (void) printf(pdyn_Fmtptr,
1202 EC_ADDR(p_dyn.d_un.d_ptr));
1203 }
1204 break;
1205
1206 /*
1207 * Items with a literal value
1208 */
1209 case DT_PLTRELSZ:
1210 case DT_RELASZ:
1211 case DT_RELAENT:
1212 case DT_STRSZ:
1213 case DT_SYMENT:
1214 case DT_RELSZ:
1215 case DT_RELENT:
1216 case DT_PLTREL:
1217 case DT_BIND_NOW:
1218 case DT_CHECKSUM:
1219 case DT_PLTPADSZ:
1220 case DT_MOVEENT:
1221 case DT_MOVESZ:
1222 case DT_SYMINSZ:
1223 case DT_SYMINENT:
1224 case DT_VERNEEDNUM:
1225 case DT_SPARC_REGISTER:
1226 case DT_SUNW_SYMSZ:
1227 case DT_SUNW_SORTENT:
1228 case DT_SUNW_SYMSORTSZ:
1229 case DT_SUNW_TLSSORTSZ:
1230 case DT_SUNW_STRPAD:
1231 case DT_SUNW_CAPCHAINENT:
1232 case DT_SUNW_CAPCHAINSZ:
1233 case DT_SUNW_ASLR:
1234 (void) printf(pdyn_Fmtptr,
1235 EC_XWORD(p_dyn.d_un.d_val));
1236 break;
1237
1238 /*
1239 * Integer items that are bitmasks, or which
1240 * can be otherwise formatted in symbolic form.
1241 */
1242 case DT_FLAGS:
1243 case DT_FEATURE_1:
1244 case DT_POSFLAG_1:
1245 case DT_FLAGS_1:
1246 case DT_SUNW_LDMACH:
1247 str = NULL;
1248 if (v_flag) {
1249 switch (p_dyn.d_tag) {
1250 case DT_FLAGS:
1251 str = conv_dyn_flag(
1252 p_dyn.d_un.d_val,
1253 DUMP_CONVFMT,
1254 &conv_buf.dyn_flag);
1255 break;
1256 case DT_FEATURE_1:
1257 str = conv_dyn_feature1(
1258 p_dyn.d_un.d_val,
1259 DUMP_CONVFMT,
1260 &conv_buf.dyn_feature1);
1261 break;
1262 case DT_POSFLAG_1:
1263 str = conv_dyn_posflag1(
1264 p_dyn.d_un.d_val,
1265 DUMP_CONVFMT,
1266 &conv_buf.dyn_posflag1);
1267 break;
1268 case DT_FLAGS_1:
1269 str = conv_dyn_flag1(
1270 p_dyn.d_un.d_val, 0,
1271 &conv_buf.dyn_flag1);
1272 break;
1273 case DT_SUNW_LDMACH:
1274 str = conv_ehdr_mach(
1275 p_dyn.d_un.d_val, 0,
1276 &conv_buf.inv);
1277 break;
1278 }
1279 }
1280 if (str) { /* Show as string */
1281 (void) printf("%s", str);
1282 } else { /* Numeric form */
1283 (void) printf(pdyn_Fmtptr,
1284 EC_ADDR(p_dyn.d_un.d_ptr));
1285 }
1286 break;
1287
1288 /*
1289 * Depreciated items with a literal value
1290 */
1291 case DT_DEPRECATED_SPARC_REGISTER:
1292 (void) printf(pdyn_Fmtptr
1293 " (deprecated value)",
1294 EC_XWORD(p_dyn.d_un.d_val));
1295 break;
1296
1297 /* Ignored items */
1298 case DT_SYMBOLIC:
1299 (void) printf("(ignored)");
1300 break;
1301 }
1302 (void) printf("\n");
1303 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1304 }
1305 }
1306
1307 /*
1308 * Check for existence of static shared library information.
1309 */
1310 while (header_num < p_ehdr.e_phnum) {
1311 (void) gelf_getphdr(elf_file, header_num, &p_phdr);
1312 if (p_phdr.p_type == PT_SHLIB) {
1313 while (--lib_scns > 0) {
1314 if (strcmp(l_scns->scn_name, ".lib") == 0) {
1315 print_static(l_scns, filename);
1316 }
1317 l_scns++;
1318 }
1319 }
1320 header_num++;
1321 }
1322 #undef pdyn_Fmtptr
1323 }
1324
1325 /*
1326 * Print the ELF header. Input is an ELF file descriptor
1327 * and the filename. If f_flag is set, the ELF header is
1328 * printed to stdout, otherwise the function returns after
1329 * setting the pointer to the ELF header. Any values which
1330 * are not known are printed in decimal. Fields must be updated
1331 * as new values are added.
1332 */
1333 static GElf_Ehdr *
1334 dump_elf_header(Elf *elf_file, char *filename, GElf_Ehdr * elf_head_p)
1335 {
1336 int class;
1337 int field;
1338
1339 if (gelf_getehdr(elf_file, elf_head_p) == NULL) {
1340 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1341 elf_errmsg(-1));
1342 return (NULL);
1343 }
1344
1345 class = (int)elf_head_p->e_ident[4];
1346
1347 if (class == ELFCLASS64)
1348 field = 21;
1349 else
1350 field = 13;
1351
1352 if (!f_flag)
1353 return (elf_head_p);
1354
1355 if (!p_flag) {
1356 (void) printf("\n **** ELF HEADER ****\n");
1357 (void) printf("%-*s%-11s%-*sMachine Version\n",
1358 field, "Class", "Data", field, "Type");
1359 (void) printf("%-*s%-11s%-*sFlags Ehsize\n",
1360 field, "Entry", "Phoff", field, "Shoff");
1361 (void) printf("%-*s%-11s%-*sShnum Shstrndx\n\n",
1362 field, "Phentsize", "Phnum", field, "Shentsz");
1363 }
1364
1365 if (!v_flag) {
1366 (void) printf("%-*d%-11d%-*d%-12d%d\n",
1367 field, elf_head_p->e_ident[4], elf_head_p->e_ident[5],
1368 field, (int)elf_head_p->e_type, (int)elf_head_p->e_machine,
1369 elf_head_p->e_version);
1370 } else {
1371 Conv_inv_buf_t inv_buf;
1372
1373 (void) printf("%-*s", field,
1374 conv_ehdr_class(class, DUMP_CONVFMT, &inv_buf));
1375 (void) printf("%-11s",
1376 conv_ehdr_data(elf_head_p->e_ident[5], DUMP_CONVFMT,
1377 &inv_buf));
1378 (void) printf("%-*s", field,
1379 conv_ehdr_type(elf_head_p->e_ident[EI_OSABI],
1380 elf_head_p->e_type, DUMP_CONVFMT, &inv_buf));
1381 (void) printf("%-12s",
1382 conv_ehdr_mach(elf_head_p->e_machine, DUMP_CONVFMT,
1383 &inv_buf));
1384 (void) printf("%s\n",
1385 conv_ehdr_vers(elf_head_p->e_version, DUMP_CONVFMT,
1386 &inv_buf));
1387 }
1388 (void) printf("%-#*llx%-#11llx%-#*llx%-#12x%#x\n",
1389 field, EC_ADDR(elf_head_p->e_entry), EC_OFF(elf_head_p->e_phoff),
1390 field, EC_OFF(elf_head_p->e_shoff), EC_WORD(elf_head_p->e_flags),
1391 EC_WORD(elf_head_p->e_ehsize));
1392 if (!v_flag || (elf_head_p->e_shstrndx != SHN_XINDEX)) {
1393 (void) printf("%-#*x%-11u%-#*x%-12u%u\n",
1394 field, EC_WORD(elf_head_p->e_phentsize),
1395 EC_WORD(elf_head_p->e_phnum),
1396 field, EC_WORD(elf_head_p->e_shentsize),
1397 EC_WORD(elf_head_p->e_shnum),
1398 EC_WORD(elf_head_p->e_shstrndx));
1399 } else {
1400 (void) printf("%-#*x%-11u%-#*x%-12uXINDEX\n",
1401 field, EC_WORD(elf_head_p->e_phentsize),
1402 EC_WORD(elf_head_p->e_phnum),
1403 field, EC_WORD(elf_head_p->e_shentsize),
1404 EC_WORD(elf_head_p->e_shnum));
1405 }
1406 if ((elf_head_p->e_shnum == 0) && (elf_head_p->e_shoff > 0)) {
1407 Elf_Scn *scn;
1408 GElf_Shdr shdr0;
1409 int field;
1410
1411 if (gelf_getclass(elf_file) == ELFCLASS64)
1412 field = 21;
1413 else
1414 field = 13;
1415 if (!p_flag) {
1416 (void) printf("\n **** SECTION HEADER[0] "
1417 "{Elf Extensions} ****\n");
1418 (void) printf(
1419 "[No]\tType\tFlags\t%-*s %-*s%-*s%sName\n",
1420 field, "Addr", field, "Offset", field,
1421 "Size(shnum)",
1422 /* compatibility: tab for elf32 */
1423 (field == 13) ? "\t" : " ");
1424 (void) printf("\tLn(strndx) Info\t%-*s Entsize\n",
1425 field, "Adralgn");
1426 }
1427 if ((scn = elf_getscn(elf_file, 0)) == NULL) {
1428 (void) fprintf(stderr,
1429 "%s: %s: elf_getscn failed: %s\n",
1430 prog_name, filename, elf_errmsg(-1));
1431 return (NULL);
1432 }
1433 if (gelf_getshdr(scn, &shdr0) == 0) {
1434 (void) fprintf(stderr,
1435 "%s: %s: gelf_getshdr: %s\n",
1436 prog_name, filename, elf_errmsg(-1));
1437 return (NULL);
1438 }
1439 (void) printf("[0]\t%u\t%llu\t", EC_WORD(shdr0.sh_type),
1440 EC_XWORD(shdr0.sh_flags));
1441
1442 (void) printf("%-#*llx %-#*llx%-*llu%s%-*u\n",
1443 field, EC_ADDR(shdr0.sh_addr),
1444 field, EC_OFF(shdr0.sh_offset),
1445 field, EC_XWORD(shdr0.sh_size),
1446 /* compatibility: tab for elf32 */
1447 ((field == 13) ? "\t" : " "),
1448 field, EC_WORD(shdr0.sh_name));
1449
1450 (void) printf("\t%u\t%u\t%-#*llx %-#*llx\n",
1451 EC_WORD(shdr0.sh_link),
1452 EC_WORD(shdr0.sh_info),
1453 field, EC_XWORD(shdr0.sh_addralign),
1454 field, EC_XWORD(shdr0.sh_entsize));
1455 }
1456 (void) printf("\n");
1457
1458 return (elf_head_p);
1459 }
1460
1461 /*
1462 * Print section contents. Input is an ELF file descriptor,
1463 * the ELF header, the SCNTAB structure,
1464 * the number of symbols, and the filename.
1465 * The number of sections,
1466 * and the offset into the SCNTAB structure will be
1467 * set in dump_section if d_flag or n_flag are set.
1468 * If v_flag is set, sections which can be interpreted will
1469 * be interpreted, otherwise raw data will be output in hexidecimal.
1470 */
1471 static void
1472 print_section(Elf *elf_file,
1473 GElf_Ehdr *p_ehdr, SCNTAB *p, int num_scns, char *filename)
1474 {
1475 unsigned char *p_sec;
1476 int i;
1477 size_t size;
1478
1479 for (i = 0; i < num_scns; i++, p++) {
1480 GElf_Shdr shdr;
1481
1482 size = 0;
1483 if (s_flag && !v_flag)
1484 p_sec = (unsigned char *)get_rawscn(p->p_sd, &size);
1485 else
1486 p_sec = (unsigned char *)get_scndata(p->p_sd, &size);
1487
1488 if ((gelf_getshdr(p->p_sd, &shdr) != NULL) &&
1489 (shdr.sh_type == SHT_NOBITS)) {
1490 continue;
1491 }
1492 if (s_flag && !v_flag) {
1493 (void) printf("\n%s:\n", p->scn_name);
1494 print_rawdata(p_sec, size);
1495 continue;
1496 }
1497 if (shdr.sh_type == SHT_SYMTAB) {
1498 dump_symbol_table(elf_file, p, filename);
1499 continue;
1500 }
1501 if (shdr.sh_type == SHT_DYNSYM) {
1502 dump_symbol_table(elf_file, p, filename);
1503 continue;
1504 }
1505 if (shdr.sh_type == SHT_STRTAB) {
1506 dump_string_table(p, 1);
1507 continue;
1508 }
1509 if (shdr.sh_type == SHT_RELA) {
1510 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1511 continue;
1512 }
1513 if (shdr.sh_type == SHT_REL) {
1514 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1515 continue;
1516 }
1517 if (shdr.sh_type == SHT_DYNAMIC) {
1518 dump_dynamic(elf_file, p, 1, filename);
1519 continue;
1520 }
1521
1522 (void) printf("\n%s:\n", p->scn_name);
1523 print_rawdata(p_sec, size);
1524 }
1525 (void) printf("\n");
1526 }
1527
1528 /*
1529 * Print section contents. This function does not print the contents
1530 * of the sections but sets up the parameters and then calls
1531 * print_section to print the contents. Calling another function to print
1532 * the contents allows both -d and -n to work correctly
1533 * simultaneously. Input is an ELF file descriptor, the ELF header,
1534 * the SCNTAB structure, the number of sections, and the filename.
1535 * Set the range of sections if d_flag, and set section name if
1536 * n_flag.
1537 */
1538 static void
1539 dump_section(Elf *elf_file,
1540 GElf_Ehdr *p_ehdr, SCNTAB *s, int num_scns, char *filename)
1541 {
1542 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1543 int i;
1544 int found_it = 0; /* for use with -n section_name */
1545
1546 if (n_flag) {
1547 n_range = s;
1548
1549 for (i = 0; i < num_scns; i++, n_range++) {
1550 if ((strcmp(name, n_range->scn_name)) != 0)
1551 continue;
1552 else {
1553 found_it = 1;
1554 print_section(elf_file, p_ehdr,
1555 n_range, 1, filename);
1556 }
1557 }
1558
1559 if (!found_it) {
1560 (void) fprintf(stderr, "%s: %s: %s not found\n",
1561 prog_name, filename, name);
1562 }
1563 } /* end n_flag */
1564
1565 if (d_flag) {
1566 d_range = s;
1567 d_num = check_range(d_low, d_hi, num_scns, filename);
1568 if (d_num < 0)
1569 return;
1570 d_range += d_low - 1;
1571
1572 print_section(elf_file, p_ehdr, d_range, d_num, filename);
1573 } /* end d_flag */
1574
1575 if (!n_flag && !d_flag)
1576 print_section(elf_file, p_ehdr, s, num_scns, filename);
1577 }
1578
1579 /*
1580 * Print the section header table. This function does not print the contents
1581 * of the section headers but sets up the parameters and then calls
1582 * print_shdr to print the contents. Calling another function to print
1583 * the contents allows both -d and -n to work correctly
1584 * simultaneously. Input is the SCNTAB structure,
1585 * the number of sections from the ELF header, and the filename.
1586 * Set the range of section headers to print if d_flag, and set
1587 * name of section header to print if n_flag.
1588 */
1589 static void
1590 dump_shdr(Elf *elf_file, SCNTAB *s, int num_scns, char *filename)
1591 {
1592
1593 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1594 int field;
1595 int i;
1596 int found_it = 0; /* for use with -n section_name */
1597
1598 if (gelf_getclass(elf_file) == ELFCLASS64)
1599 field = 21;
1600 else
1601 field = 13;
1602
1603 if (!p_flag) {
1604 (void) printf("\n **** SECTION HEADER TABLE ****\n");
1605 (void) printf("[No]\tType\tFlags\t%-*s %-*s %-*s%sName\n",
1606 field, "Addr", field, "Offset", field, "Size",
1607 /* compatibility: tab for elf32 */
1608 (field == 13) ? "\t" : " ");
1609 (void) printf("\tLink\tInfo\t%-*s Entsize\n\n",
1610 field, "Adralgn");
1611 }
1612
1613 if (n_flag) {
1614 n_range = s;
1615
1616 for (i = 1; i <= num_scns; i++, n_range++) {
1617 if ((strcmp(name, n_range->scn_name)) != 0)
1618 continue;
1619 else {
1620 found_it = 1;
1621 print_shdr(elf_file, n_range, 1, i);
1622 }
1623 }
1624
1625 if (!found_it) {
1626 (void) fprintf(stderr, "%s: %s: %s not found\n",
1627 prog_name, filename, name);
1628 }
1629 } /* end n_flag */
1630
1631 if (d_flag) {
1632 d_range = s;
1633 d_num = check_range(d_low, d_hi, num_scns, filename);
1634 if (d_num < 0)
1635 return;
1636 d_range += d_low - 1;
1637
1638 print_shdr(elf_file, d_range, d_num, d_low);
1639 } /* end d_flag */
1640
1641 if (!n_flag && !d_flag)
1642 print_shdr(elf_file, s, num_scns, 1);
1643 }
1644
1645 /*
1646 * Process all of the command line options (except
1647 * for -a, -g, -f, and -o). All of the options processed
1648 * by this function require the presence of the section
1649 * header table and will not be processed if it is not present.
1650 * Set up a buffer containing section name, section header,
1651 * and section descriptor for each section in the file. This
1652 * structure is used to avoid duplicate calls to libelf functions.
1653 * Structure members for the symbol table, the debugging information,
1654 * and the line number information are global. All of the
1655 * rest are local.
1656 */
1657 static void
1658 dump_section_table(Elf *elf_file, GElf_Ehdr *elf_head_p, char *filename)
1659 {
1660
1661 static SCNTAB *buffer, *p_scns;
1662 Elf_Scn *scn = 0;
1663 char *s_name = NULL;
1664 int found = 0;
1665 unsigned int num_scns;
1666 size_t shstrndx;
1667 size_t shnum;
1668
1669
1670 if (elf_getshdrnum(elf_file, &shnum) == -1) {
1671 (void) fprintf(stderr,
1672 "%s: %s: elf_getshdrnum failed: %s\n",
1673 prog_name, filename, elf_errmsg(-1));
1674 return;
1675 }
1676 if (elf_getshdrstrndx(elf_file, &shstrndx) == -1) {
1677 (void) fprintf(stderr,
1678 "%s: %s: elf_getshdrstrndx failed: %s\n",
1679 prog_name, filename, elf_errmsg(-1));
1680 return;
1681 }
1682
1683 if ((buffer = calloc(shnum, sizeof (SCNTAB))) == NULL) {
1684 (void) fprintf(stderr, "%s: %s: cannot calloc space\n",
1685 prog_name, filename);
1686 return;
1687 }
1688 /* LINTED */
1689 num_scns = (int)shnum - 1;
1690
1691 p_symtab = (SCNTAB *)0;
1692 p_dynsym = (SCNTAB *)0;
1693 p_scns = buffer;
1694 p_head_scns = buffer;
1695
1696 while ((scn = elf_nextscn(elf_file, scn)) != 0) {
1697 if ((gelf_getshdr(scn, &buffer->p_shdr)) == 0) {
1698 (void) fprintf(stderr,
1699 "%s: %s: %s\n", prog_name, filename,
1700 elf_errmsg(-1));
1701 return;
1702 }
1703 s_name = (char *)
1704 elf_strptr(elf_file, shstrndx, buffer->p_shdr.sh_name);
1705 buffer->scn_name = s_name ? s_name : (char *)UNKNOWN;
1706 buffer->p_sd = scn;
1707
1708 if (buffer->p_shdr.sh_type == SHT_SYMTAB) {
1709 found += 1;
1710 p_symtab = buffer;
1711 }
1712 if (buffer->p_shdr.sh_type == SHT_DYNSYM)
1713 p_dynsym = buffer;
1714 buffer++;
1715 }
1716
1717 /*
1718 * These functions depend upon the presence of the section header table
1719 * and will not be invoked in its absence
1720 */
1721 if (h_flag) {
1722 dump_shdr(elf_file, p_scns, num_scns, filename);
1723 }
1724 if (p_symtab && (t_flag || T_flag)) {
1725 dump_symbol_table(elf_file, p_symtab, filename);
1726 }
1727 if (c_flag) {
1728 dump_string_table(p_scns, num_scns);
1729 }
1730 if (r_flag) {
1731 dump_reloc_table(elf_file, elf_head_p,
1732 p_scns, num_scns, filename);
1733 }
1734 if (L_flag) {
1735 dump_dynamic(elf_file, p_scns, num_scns, filename);
1736 }
1737 if (s_flag) {
1738 dump_section(elf_file, elf_head_p, p_scns,
1739 num_scns, filename);
1740 }
1741 }
1742
1743 /*
1744 * Load the archive string table(s) (for extended-length strings)
1745 * into an in-core table/list
1746 */
1747 static struct stab_list_s *
1748 load_arstring_table(struct stab_list_s *STabList,
1749 int fd, Elf *elf_file, Elf_Arhdr *p_ar, char *filename)
1750 {
1751 off_t here;
1752 struct stab_list_s *STL_entry, *STL_next;
1753
1754 if (p_ar) {
1755 STL_entry = malloc(sizeof (struct stab_list_s));
1756 STL_entry->next = 0;
1757 STL_entry->strings = 0;
1758 STL_entry->size = 0;
1759
1760 if (!STabList)
1761 STabList = STL_entry;
1762 else {
1763 STL_next = STabList;
1764 while (STL_next->next != (void *)0)
1765 STL_next = STL_next->next;
1766 STL_next->next = STL_entry;
1767 }
1768
1769 STL_entry->size = p_ar->ar_size;
1770 STL_entry->strings = malloc(p_ar->ar_size);
1771 here = elf_getbase(elf_file);
1772 if ((lseek(fd, here, 0)) != here) {
1773 (void) fprintf(stderr,
1774 "%s: %s: could not lseek\n", prog_name, filename);
1775 }
1776
1777 if ((read(fd, STL_entry->strings, p_ar->ar_size)) == -1) {
1778 (void) fprintf(stderr,
1779 "%s: %s: could not read\n", prog_name, filename);
1780 }
1781 }
1782 return (STabList);
1783 }
1784
1785 /*
1786 * Print the archive header for each member of an archive.
1787 * Also call ar_sym_read to print the symbols in the
1788 * archive symbol table if g_flag. Input is a file descriptor,
1789 * an ELF file descriptor, and the filename. Putting the call
1790 * to dump the archive symbol table in this function is more
1791 * efficient since it is necessary to examine the archive member
1792 * name in the archive header to determine which member is the
1793 * symbol table.
1794 */
1795 static void
1796 dump_ar_hdr(int fd, Elf *elf_file, char *filename)
1797 {
1798 extern int v_flag, g_flag, a_flag, p_flag;
1799 Elf_Arhdr *p_ar;
1800 Elf *arf;
1801 Elf_Cmd cmd;
1802 int title = 0;
1803 int err = 0;
1804
1805 char buf[DATESIZE];
1806
1807 cmd = ELF_C_READ;
1808 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1809 p_ar = elf_getarhdr(arf);
1810 if (p_ar == NULL) {
1811 (void) fprintf(stderr,
1812 "%s: %s: %s\n", prog_name, filename,
1813 elf_errmsg(-1));
1814 continue;
1815 }
1816 if ((strcmp(p_ar->ar_name, "/") == 0) ||
1817 (strcmp(p_ar->ar_name, "/SYM64/") == 0)) {
1818 if (g_flag)
1819 ar_sym_read(elf_file, filename);
1820 } else if (strcmp(p_ar->ar_name, "//") == 0) {
1821 StringTableList = load_arstring_table(
1822 StringTableList, fd, arf, p_ar, filename);
1823 cmd = elf_next(arf);
1824 (void) elf_end(arf);
1825 continue;
1826 } else {
1827 if (a_flag) {
1828 (void) printf("%s[%s]:\n", filename,
1829 p_ar->ar_name);
1830 if (!p_flag && title == 0) {
1831 if (!v_flag)
1832 (void) printf(
1833 "\n\n\t\t\t***ARCHIVE HEADER***"
1834 "\n Date Uid Gid Mode Size Member Name\n\n");
1835 else
1836 (void) printf(
1837 "\n\n\t\t\t***ARCHIVE HEADER***"
1838 "\n Date Uid Gid Mode Size Member Name\n\n");
1839 title = 1;
1840 }
1841 if (!v_flag) {
1842 (void) printf(
1843 "\t0x%.8lx %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1844 p_ar->ar_date, (int)p_ar->ar_uid,
1845 (int)p_ar->ar_gid,
1846 (int)p_ar->ar_mode,
1847 p_ar->ar_size, p_ar->ar_name);
1848 } else {
1849 if ((strftime(buf, DATESIZE,
1850 "%b %d %H:%M:%S %Y",
1851 localtime(
1852 &(p_ar->ar_date)))) == 0) {
1853 (void) fprintf(stderr,
1854 "%s: %s: don't have enough space to store the date\n", prog_name, filename);
1855 exit(1);
1856 }
1857 (void) printf(
1858 "\t%s %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1859 buf, (int)p_ar->ar_uid,
1860 (int)p_ar->ar_gid,
1861 (int)p_ar->ar_mode,
1862 p_ar->ar_size, p_ar->ar_name);
1863 }
1864 }
1865 }
1866 cmd = elf_next(arf);
1867 (void) elf_end(arf);
1868 } /* end while */
1869
1870 err = elf_errno();
1871 if (err != 0) {
1872 (void) fprintf(stderr,
1873 "%s: %s: %s\n", prog_name, filename, elf_errmsg(err));
1874 }
1875 }
1876
1877 /*
1878 * Process member files of an archive. This function provides
1879 * a loop through an archive equivalent the processing of
1880 * each_file for individual object files.
1881 */
1882 static void
1883 dump_ar_files(int fd, Elf *elf_file, char *filename)
1884 {
1885 Elf_Arhdr *p_ar;
1886 Elf *arf;
1887 Elf_Cmd cmd;
1888 Elf_Kind file_type;
1889 GElf_Ehdr elf_head;
1890 char *fullname;
1891
1892 cmd = ELF_C_READ;
1893 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1894 size_t len;
1895
1896 p_ar = elf_getarhdr(arf);
1897 if (p_ar == NULL) {
1898 (void) fprintf(stderr, "%s: %s: %s\n",
1899 prog_name, filename, elf_errmsg(-1));
1900 return;
1901 }
1902 if (p_ar->ar_name[0] == '/') {
1903 cmd = elf_next(arf);
1904 (void) elf_end(arf);
1905 continue;
1906 }
1907
1908 len = strlen(filename) + strlen(p_ar->ar_name) + 3;
1909 if ((fullname = malloc(len)) == NULL)
1910 return;
1911 (void) snprintf(fullname, len, "%s[%s]", filename,
1912 p_ar->ar_name);
1913 (void) printf("\n%s:\n", fullname);
1914 file_type = elf_kind(arf);
1915 if (file_type == ELF_K_ELF) {
1916 if (dump_elf_header(arf, fullname, &elf_head) == NULL)
1917 return;
1918 if (o_flag)
1919 dump_exec_header(arf,
1920 (unsigned)elf_head.e_phnum, fullname);
1921 if (x_flag)
1922 dump_section_table(arf, &elf_head, fullname);
1923 } else {
1924 (void) fprintf(stderr, "%s: %s: invalid file type\n",
1925 prog_name, fullname);
1926 cmd = elf_next(arf);
1927 (void) elf_end(arf);
1928 continue;
1929 }
1930
1931 cmd = elf_next(arf);
1932 (void) elf_end(arf);
1933 } /* end while */
1934 }
1935
1936 /*
1937 * Takes a filename as input. Test first for a valid version
1938 * of libelf.a and exit on error. Process each valid file
1939 * or archive given as input on the command line. Check
1940 * for file type. If it is an archive, process the archive-
1941 * specific options first, then files within the archive.
1942 * If it is an ELF object file, process it; otherwise
1943 * warn that it is an invalid file type.
1944 * All options except the archive-specific and program
1945 * execution header are processed in the function, dump_section_table.
1946 */
1947 static void
1948 each_file(char *filename)
1949 {
1950 Elf *elf_file;
1951 GElf_Ehdr elf_head;
1952 int fd;
1953 Elf_Kind file_type;
1954
1955 struct stat buf;
1956
1957 Elf_Cmd cmd;
1958 errno = 0;
1959
1960 if (stat(filename, &buf) == -1) {
1961 int err = errno;
1962 (void) fprintf(stderr, "%s: %s: %s", prog_name, filename,
1963 strerror(err));
1964 return;
1965 }
1966
1967 if ((fd = open((filename), O_RDONLY)) == -1) {
1968 (void) fprintf(stderr, "%s: %s: cannot read\n", prog_name,
1969 filename);
1970 return;
1971 }
1972 cmd = ELF_C_READ;
1973 if ((elf_file = elf_begin(fd, cmd, (Elf *)0)) == NULL) {
1974 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1975 elf_errmsg(-1));
1976 return;
1977 }
1978
1979 file_type = elf_kind(elf_file);
1980 if (file_type == ELF_K_AR) {
1981 if (a_flag || g_flag) {
1982 dump_ar_hdr(fd, elf_file, filename);
1983 elf_file = elf_begin(fd, cmd, (Elf *)0);
1984 }
1985 if (z_flag)
1986 dump_ar_files(fd, elf_file, filename);
1987 } else {
1988 if (file_type == ELF_K_ELF) {
1989 (void) printf("\n%s:\n", filename);
1990 if (dump_elf_header(elf_file, filename, &elf_head)) {
1991 if (o_flag)
1992 dump_exec_header(elf_file,
1993 (unsigned)elf_head.e_phnum,
1994 filename);
1995 if (x_flag)
1996 dump_section_table(elf_file,
1997 &elf_head, filename);
1998 }
1999 } else {
2000 (void) fprintf(stderr, "%s: %s: invalid file type\n",
2001 prog_name, filename);
2002 }
2003 }
2004 (void) elf_end(elf_file);
2005 (void) close(fd);
2006 }
2007
2008 /*
2009 * Sets up flags for command line options given and then
2010 * calls each_file() to process each file.
2011 */
2012 int
2013 main(int argc, char *argv[], char *envp[])
2014 {
2015 char *optstr = OPTSTR; /* option string used by getopt() */
2016 int optchar;
2017
2018 /*
2019 * Check for a binary that better fits this architecture.
2020 */
2021 (void) conv_check_native(argv, envp);
2022
2023 prog_name = argv[0];
2024
2025 (void) setlocale(LC_ALL, "");
2026 while ((optchar = getopt(argc, argv, optstr)) != -1) {
2027 switch (optchar) {
2028 case 'a':
2029 a_flag = 1;
2030 x_flag = 1;
2031 break;
2032 case 'g':
2033 g_flag = 1;
2034 x_flag = 1;
2035 break;
2036 case 'v':
2037 v_flag = 1;
2038 break;
2039 case 'p':
2040 p_flag = 1;
2041 break;
2042 case 'f':
2043 f_flag = 1;
2044 z_flag = 1;
2045 break;
2046 case 'o':
2047 o_flag = 1;
2048 z_flag = 1;
2049 break;
2050 case 'h':
2051 h_flag = 1;
2052 x_flag = 1;
2053 z_flag = 1;
2054 break;
2055 case 's':
2056 s_flag = 1;
2057 x_flag = 1;
2058 z_flag = 1;
2059 break;
2060 case 'd':
2061 d_flag = 1;
2062 x_flag = 1;
2063 z_flag = 1;
2064 set_range(optarg, &d_low, &d_hi);
2065 break;
2066 case 'n':
2067 n_flag++;
2068 x_flag = 1;
2069 z_flag = 1;
2070 name = optarg;
2071 break;
2072 case 'r':
2073 r_flag = 1;
2074 x_flag = 1;
2075 z_flag = 1;
2076 break;
2077 case 't':
2078 t_flag = 1;
2079 x_flag = 1;
2080 z_flag = 1;
2081 break;
2082 case 'C':
2083 C_flag = 1;
2084 t_flag = 1;
2085 x_flag = 1;
2086 z_flag = 1;
2087 break;
2088 case 'T':
2089 T_flag = 1;
2090 x_flag = 1;
2091 z_flag = 1;
2092 set_range(optarg, &T_low, &T_hi);
2093 break;
2094 case 'c':
2095 c_flag = 1;
2096 x_flag = 1;
2097 z_flag = 1;
2098 break;
2099 case 'L':
2100 L_flag = 1;
2101 x_flag = 1;
2102 z_flag = 1;
2103 break;
2104 case 'V':
2105 V_flag = 1;
2106 (void) fprintf(stderr, "dump: %s %s\n",
2107 (const char *)SGU_PKG,
2108 (const char *)SGU_REL);
2109 break;
2110 case '?':
2111 errflag += 1;
2112 break;
2113 default:
2114 break;
2115 }
2116 }
2117
2118 if (errflag || (optind >= argc) || (!z_flag && !x_flag)) {
2119 if (!(V_flag && (argc == 2))) {
2120 usage();
2121 exit(269);
2122 }
2123 }
2124
2125 if (elf_version(EV_CURRENT) == EV_NONE) {
2126 (void) fprintf(stderr, "%s: libelf is out of date\n",
2127 prog_name);
2128 exit(101);
2129 }
2130
2131 while (optind < argc) {
2132 each_file(argv[optind]);
2133 optind++;
2134 }
2135 return (0);
2136 }