10138 smatch fixes for usr/src/cmd/sgs
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->p_shdr.sh_type == SHT_RELA) {
837 if (!n_flag && r_flag)
838 (void) printf("\n%s:\n", p_scns->scn_name);
839 if (!p_flag && (!n_flag && r_flag))
840 (void) printf("%-*s%-*s%-*s%s\n\n",
841 12 + adj, "Offset", 22, "Symndx",
842 18, "Type", "Addend");
843 if ((rel_data = elf_getdata(p_scns->p_sd, NULL)) == NULL) {
844 (void) fprintf(stderr,
845 "%s: %s: no relocation information\n", prog_name, filename);
846 return;
847 }
848 reloc_size = rel_data->d_size;
849
850 if (n_flag) {
851 rn_flag = 1;
852 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
853 reloc_size, sym_size, filename, reloc_symtab);
854 }
855 if (d_flag) {
856 rn_flag = 0;
857 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
858 reloc_size, sym_size, filename, reloc_symtab);
859 }
860 if (!n_flag && !d_flag)
861 print_rela(elf_file, p_scns, rel_data, sym_data, p_ehdr,
862 reloc_size, sym_size, filename, reloc_symtab);
863 } else {
864 if (p_scns->p_shdr.sh_type == SHT_REL) {
865 if (!n_flag && r_flag)
866 (void) printf("\n%s:\n", p_scns->scn_name);
867 if (!p_flag && (!n_flag && r_flag)) {
868 (void) printf("%-*s%-*s%s\n\n",
869 12 + adj, "Offset", 20, "Symndx", "Type");
870 }
871 if ((rel_data = elf_getdata(p_scns->p_sd, NULL))
872 == NULL) {
873 (void) fprintf(stderr,
874 "%s: %s: no relocation information\n", prog_name, filename);
875 return;
876 }
877 reloc_size = rel_data->d_size;
878 if (n_flag) {
879 rn_flag = 1;
880 print_rel(elf_file, p_scns, rel_data, sym_data,
881 p_ehdr, reloc_size, sym_size,
882 filename, reloc_symtab);
883 }
884 if (d_flag) {
885 rn_flag = 0;
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 (!n_flag && !d_flag)
891 print_rel(elf_file, p_scns, rel_data, sym_data,
892 p_ehdr, reloc_size, sym_size,
893 filename, reloc_symtab);
894 }
895 }
896 p_scns++;
897 }
898 }
899
900 /*
901 * Print out the string tables. Input is an opened ELF file,
902 * the SCNTAB structure, the number of sections, and the filename.
903 * Since there can be more than one string table, all sections are
904 * examined and any with the correct type are printed out.
905 */
906 static void
907 dump_string_table(SCNTAB *s, int num_scns)
908 {
909 size_t section_size;
910 unsigned char *strtab;
911 int beg_of_string;
912 int counter = 0;
913 int str_off;
914 int i;
915
916 if (!p_flag) {
917 (void) printf("\n **** STRING TABLE INFORMATION ****\n");
918 }
919
920 for (i = 0; i < num_scns; i++, s++) {
921 if (s->p_shdr.sh_type != SHT_STRTAB)
922 continue;
923
924 str_off = 0;
925
926 if (!p_flag) {
927 (void) printf("\n%s:\n", s->scn_name);
928 (void) printf(" <offset> \tName\n");
929 }
930 section_size = 0;
931 if ((strtab = (unsigned char *)
932 get_scndata(s->p_sd, §ion_size)) == NULL) {
933 continue;
934 }
935
936 if (section_size != 0) {
937 (void) printf(" <%d> \t", str_off);
938 beg_of_string = 0;
939 while (section_size--) {
940 unsigned char c = *strtab++;
941
942 if (beg_of_string) {
943 (void) printf(" <%d> \t", str_off);
944 counter++;
945 beg_of_string = 0;
946 }
947 str_off++;
948 switch (c) {
949 case '\0':
950 (void) printf("\n");
951 beg_of_string = 1;
952 break;
953 default:
954 (void) putchar(c);
955 }
956 }
957 }
958 }
959 (void) printf("\n");
960 }
961
962 /*
963 * Print the symbol table. This function does not print the contents
964 * of the symbol table but sets up the parameters and then calls
965 * print_symtab to print the symbols. Calling another function to print
966 * the symbols allows both -T and -n to work correctly
967 * simultaneously. Input is an opened ELF file, a pointer to the
968 * symbol table SCNTAB structure, and the filename.
969 * Set the range of symbols to print if T_flag, and set
970 * name of symbol to print if n_flag.
971 */
972 static void
973 dump_symbol_table(Elf *elf_file, SCNTAB *p_symtab, char *filename)
974 {
975 Elf_Data *sym_data;
976 GElf_Sym T_range, n_range; /* for use with -T and -n */
977 size_t count = 0;
978 size_t sym_size;
979 int index = 1;
980 int found_it = 0;
981 int i;
982 int adj = 0; /* field adjustment for elf64 */
983
984 if (gelf_getclass(elf_file) == ELFCLASS64)
985 adj = 8;
986
987 if (p_symtab == NULL) {
988 (void) fprintf(stderr,
989 "%s: %s: could not get symbol table\n", prog_name, filename);
990 return;
991 }
992
993 /* get symbol table data */
994 sym_data = NULL;
995 sym_size = 0;
996 if ((sym_data =
997 elf_getdata(p_symtab->p_sd, NULL)) == NULL) {
998 (void) printf("\n%s:\n", p_symtab->scn_name);
999 (void) printf("No symbol table data\n");
1000 return;
1001 }
1002 sym_size = sym_data->d_size;
1003
1004 count = sym_size / p_symtab->p_shdr.sh_entsize;
1005
1006 if (n_flag && t_flag && !T_flag) {
1007 /* LINTED */
1008 for (i = 1; i < count; i++) {
1009 (void) gelf_getsym(sym_data, i, &n_range);
1010 if (strcmp(name, (char *)
1011 elf_strptr(elf_file,
1012 p_symtab->p_shdr.sh_link,
1013 n_range.st_name)) != 0) {
1014 continue;
1015 } else {
1016 found_it = 1;
1017 if (!p_flag) {
1018 (void) printf(
1019 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1020 (void) printf(
1021 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1022 12 + adj, "Value", 9 + adj, "Size");
1023 }
1024 (void) printf("\n%s:\n", p_symtab->scn_name);
1025 print_symtab(elf_file, p_symtab, sym_data,
1026 1, i);
1027 }
1028 } /* end for */
1029 if (!found_it) {
1030 (void) fprintf(stderr, "%s: %s: %s not found\n",
1031 prog_name, filename, name);
1032 }
1033 } else if (T_flag) {
1034 T_num = check_range(T_low, T_hi, count, filename);
1035 if (T_num < 0)
1036 return;
1037
1038 (void) gelf_getsym(sym_data, T_low-1, &T_range);
1039 index = T_low;
1040
1041 if (!p_flag) {
1042 (void) printf(
1043 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1044 (void) printf(
1045 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1046 12 + adj, "Value", 9 + adj, "Size");
1047 }
1048 (void) printf("\n%s:\n", p_symtab->scn_name);
1049 print_symtab(elf_file, p_symtab, sym_data, T_num, index);
1050 } else {
1051 if (!p_flag) {
1052 (void) printf(
1053 "\n ***** SYMBOL TABLE INFORMATION *****\n");
1054 (void) printf(
1055 "[Index] %-*s%-*sType\tBind\tOther\tShndx\tName",
1056 12 + adj, "Value", 9 + adj, "Size");
1057 }
1058 (void) printf("\n%s:\n", p_symtab->scn_name);
1059 print_symtab(elf_file, p_symtab, sym_data, count-1, 1);
1060 }
1061 }
1062
1063
1064 /*
1065 * Print dynamic linking information. Input is an ELF
1066 * file descriptor, the SCNTAB structure, the number of
1067 * sections, and the filename.
1068 */
1069 static void
1070 dump_dynamic(Elf *elf_file, SCNTAB *p_scns, int num_scns, char *filename)
1071 {
1072 #define pdyn_Fmtptr "%#llx"
1073
1074 Elf_Data *dyn_data;
1075 GElf_Dyn p_dyn;
1076 GElf_Phdr p_phdr;
1077 GElf_Ehdr p_ehdr;
1078 int index = 1;
1079 int lib_scns = num_scns;
1080 SCNTAB *l_scns = p_scns;
1081 int header_num = 0;
1082 const char *str;
1083
1084 (void) gelf_getehdr(elf_file, &p_ehdr);
1085
1086 if (!p_flag)
1087 (void) printf("\n **** DYNAMIC SECTION INFORMATION ****\n");
1088
1089 for (; num_scns > 0; num_scns--, p_scns++) {
1090 GElf_Word link;
1091 int ii;
1092
1093
1094 if (p_scns->p_shdr.sh_type != SHT_DYNAMIC)
1095 continue;
1096
1097 if (!p_flag) {
1098 (void) printf("%s:\n", p_scns->scn_name);
1099 (void) printf("[INDEX]\tTag Value\n");
1100 }
1101
1102 if ((dyn_data = elf_getdata(p_scns->p_sd, NULL)) == 0) {
1103 (void) fprintf(stderr, "%s: %s: no data in "
1104 "%s section\n", prog_name, filename,
1105 p_scns->scn_name);
1106 return;
1107 }
1108
1109 link = p_scns->p_shdr.sh_link;
1110 ii = 0;
1111
1112 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1113 while (p_dyn.d_tag != DT_NULL) {
1114 union {
1115 Conv_inv_buf_t inv;
1116 Conv_dyn_flag_buf_t dyn_flag;
1117 Conv_dyn_flag1_buf_t dyn_flag1;
1118 Conv_dyn_feature1_buf_t dyn_feature1;
1119 Conv_dyn_posflag1_buf_t dyn_posflag1;
1120 } conv_buf;
1121
1122 (void) printf("[%d]\t%-15.15s ", index++,
1123 conv_dyn_tag(p_dyn.d_tag,
1124 p_ehdr.e_ident[EI_OSABI], p_ehdr.e_machine,
1125 DUMP_CONVFMT, &conv_buf.inv));
1126
1127 /*
1128 * It would be nice to use a table driven loop
1129 * here, but the address space is too sparse
1130 * and irregular. A switch is simple and robust.
1131 */
1132 switch (p_dyn.d_tag) {
1133 /*
1134 * Items with an address value
1135 */
1136 case DT_PLTGOT:
1137 case DT_HASH:
1138 case DT_STRTAB:
1139 case DT_RELA:
1140 case DT_SYMTAB:
1141 case DT_INIT:
1142 case DT_FINI:
1143 case DT_REL:
1144 case DT_DEBUG:
1145 case DT_TEXTREL:
1146 case DT_JMPREL:
1147 case DT_INIT_ARRAY:
1148 case DT_FINI_ARRAY:
1149 case DT_INIT_ARRAYSZ:
1150 case DT_FINI_ARRAYSZ:
1151 case DT_PREINIT_ARRAY:
1152 case DT_PREINIT_ARRAYSZ:
1153 case DT_SUNW_RTLDINF:
1154 case DT_SUNW_CAP:
1155 case DT_SUNW_CAPINFO:
1156 case DT_SUNW_CAPCHAIN:
1157 case DT_SUNW_SYMTAB:
1158 case DT_SUNW_SYMSORT:
1159 case DT_SUNW_TLSSORT:
1160 case DT_PLTPAD:
1161 case DT_MOVETAB:
1162 case DT_SYMINFO:
1163 case DT_RELACOUNT:
1164 case DT_RELCOUNT:
1165 case DT_VERSYM:
1166 case DT_VERDEF:
1167 case DT_VERDEFNUM:
1168 case DT_VERNEED:
1169 (void) printf(pdyn_Fmtptr,
1170 EC_ADDR(p_dyn.d_un.d_ptr));
1171 break;
1172
1173 /*
1174 * Items with a string value
1175 */
1176 case DT_NEEDED:
1177 case DT_SONAME:
1178 case DT_RPATH:
1179 case DT_RUNPATH:
1180 case DT_SUNW_AUXILIARY:
1181 case DT_SUNW_FILTER:
1182 case DT_CONFIG:
1183 case DT_DEPAUDIT:
1184 case DT_AUDIT:
1185 case DT_AUXILIARY:
1186 case DT_USED:
1187 case DT_FILTER:
1188 if (v_flag) { /* Look up the string */
1189 str = (char *)elf_strptr(elf_file, link,
1190 p_dyn.d_un.d_ptr);
1191 if (!(str && *str))
1192 str = (char *)UNKNOWN;
1193 (void) printf("%s", str);
1194 } else { /* Show the address */
1195 (void) printf(pdyn_Fmtptr,
1196 EC_ADDR(p_dyn.d_un.d_ptr));
1197 }
1198 break;
1199
1200 /*
1201 * Items with a literal value
1202 */
1203 case DT_PLTRELSZ:
1204 case DT_RELASZ:
1205 case DT_RELAENT:
1206 case DT_STRSZ:
1207 case DT_SYMENT:
1208 case DT_RELSZ:
1209 case DT_RELENT:
1210 case DT_PLTREL:
1211 case DT_BIND_NOW:
1212 case DT_CHECKSUM:
1213 case DT_PLTPADSZ:
1214 case DT_MOVEENT:
1215 case DT_MOVESZ:
1216 case DT_SYMINSZ:
1217 case DT_SYMINENT:
1218 case DT_VERNEEDNUM:
1219 case DT_SPARC_REGISTER:
1220 case DT_SUNW_SYMSZ:
1221 case DT_SUNW_SORTENT:
1222 case DT_SUNW_SYMSORTSZ:
1223 case DT_SUNW_TLSSORTSZ:
1224 case DT_SUNW_STRPAD:
1225 case DT_SUNW_CAPCHAINENT:
1226 case DT_SUNW_CAPCHAINSZ:
1227 case DT_SUNW_ASLR:
1228 (void) printf(pdyn_Fmtptr,
1229 EC_XWORD(p_dyn.d_un.d_val));
1230 break;
1231
1232 /*
1233 * Integer items that are bitmasks, or which
1234 * can be otherwise formatted in symbolic form.
1235 */
1236 case DT_FLAGS:
1237 case DT_FEATURE_1:
1238 case DT_POSFLAG_1:
1239 case DT_FLAGS_1:
1240 case DT_SUNW_LDMACH:
1241 str = NULL;
1242 if (v_flag) {
1243 switch (p_dyn.d_tag) {
1244 case DT_FLAGS:
1245 str = conv_dyn_flag(
1246 p_dyn.d_un.d_val,
1247 DUMP_CONVFMT,
1248 &conv_buf.dyn_flag);
1249 break;
1250 case DT_FEATURE_1:
1251 str = conv_dyn_feature1(
1252 p_dyn.d_un.d_val,
1253 DUMP_CONVFMT,
1254 &conv_buf.dyn_feature1);
1255 break;
1256 case DT_POSFLAG_1:
1257 str = conv_dyn_posflag1(
1258 p_dyn.d_un.d_val,
1259 DUMP_CONVFMT,
1260 &conv_buf.dyn_posflag1);
1261 break;
1262 case DT_FLAGS_1:
1263 str = conv_dyn_flag1(
1264 p_dyn.d_un.d_val, 0,
1265 &conv_buf.dyn_flag1);
1266 break;
1267 case DT_SUNW_LDMACH:
1268 str = conv_ehdr_mach(
1269 p_dyn.d_un.d_val, 0,
1270 &conv_buf.inv);
1271 break;
1272 }
1273 }
1274 if (str) { /* Show as string */
1275 (void) printf("%s", str);
1276 } else { /* Numeric form */
1277 (void) printf(pdyn_Fmtptr,
1278 EC_ADDR(p_dyn.d_un.d_ptr));
1279 }
1280 break;
1281
1282 /*
1283 * Depreciated items with a literal value
1284 */
1285 case DT_DEPRECATED_SPARC_REGISTER:
1286 (void) printf(pdyn_Fmtptr
1287 " (deprecated value)",
1288 EC_XWORD(p_dyn.d_un.d_val));
1289 break;
1290
1291 /* Ignored items */
1292 case DT_SYMBOLIC:
1293 (void) printf("(ignored)");
1294 break;
1295 }
1296 (void) printf("\n");
1297 (void) gelf_getdyn(dyn_data, ii++, &p_dyn);
1298 }
1299 }
1300
1301 /*
1302 * Check for existence of static shared library information.
1303 */
1304 while (header_num < p_ehdr.e_phnum) {
1305 (void) gelf_getphdr(elf_file, header_num, &p_phdr);
1306 if (p_phdr.p_type == PT_SHLIB) {
1307 while (--lib_scns > 0) {
1308 if (strcmp(l_scns->scn_name, ".lib") == 0) {
1309 print_static(l_scns, filename);
1310 }
1311 l_scns++;
1312 }
1313 }
1314 header_num++;
1315 }
1316 #undef pdyn_Fmtptr
1317 }
1318
1319 /*
1320 * Print the ELF header. Input is an ELF file descriptor
1321 * and the filename. If f_flag is set, the ELF header is
1322 * printed to stdout, otherwise the function returns after
1323 * setting the pointer to the ELF header. Any values which
1324 * are not known are printed in decimal. Fields must be updated
1325 * as new values are added.
1326 */
1327 static GElf_Ehdr *
1328 dump_elf_header(Elf *elf_file, char *filename, GElf_Ehdr * elf_head_p)
1329 {
1330 int class;
1331 int field;
1332
1333 if (gelf_getehdr(elf_file, elf_head_p) == NULL) {
1334 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1335 elf_errmsg(-1));
1336 return (NULL);
1337 }
1338
1339 class = (int)elf_head_p->e_ident[4];
1340
1341 if (class == ELFCLASS64)
1342 field = 21;
1343 else
1344 field = 13;
1345
1346 if (!f_flag)
1347 return (elf_head_p);
1348
1349 if (!p_flag) {
1350 (void) printf("\n **** ELF HEADER ****\n");
1351 (void) printf("%-*s%-11s%-*sMachine Version\n",
1352 field, "Class", "Data", field, "Type");
1353 (void) printf("%-*s%-11s%-*sFlags Ehsize\n",
1354 field, "Entry", "Phoff", field, "Shoff");
1355 (void) printf("%-*s%-11s%-*sShnum Shstrndx\n\n",
1356 field, "Phentsize", "Phnum", field, "Shentsz");
1357 }
1358
1359 if (!v_flag) {
1360 (void) printf("%-*d%-11d%-*d%-12d%d\n",
1361 field, elf_head_p->e_ident[4], elf_head_p->e_ident[5],
1362 field, (int)elf_head_p->e_type, (int)elf_head_p->e_machine,
1363 elf_head_p->e_version);
1364 } else {
1365 Conv_inv_buf_t inv_buf;
1366
1367 (void) printf("%-*s", field,
1368 conv_ehdr_class(class, DUMP_CONVFMT, &inv_buf));
1369 (void) printf("%-11s",
1370 conv_ehdr_data(elf_head_p->e_ident[5], DUMP_CONVFMT,
1371 &inv_buf));
1372 (void) printf("%-*s", field,
1373 conv_ehdr_type(elf_head_p->e_ident[EI_OSABI],
1374 elf_head_p->e_type, DUMP_CONVFMT, &inv_buf));
1375 (void) printf("%-12s",
1376 conv_ehdr_mach(elf_head_p->e_machine, DUMP_CONVFMT,
1377 &inv_buf));
1378 (void) printf("%s\n",
1379 conv_ehdr_vers(elf_head_p->e_version, DUMP_CONVFMT,
1380 &inv_buf));
1381 }
1382 (void) printf("%-#*llx%-#11llx%-#*llx%-#12x%#x\n",
1383 field, EC_ADDR(elf_head_p->e_entry), EC_OFF(elf_head_p->e_phoff),
1384 field, EC_OFF(elf_head_p->e_shoff), EC_WORD(elf_head_p->e_flags),
1385 EC_WORD(elf_head_p->e_ehsize));
1386 if (!v_flag || (elf_head_p->e_shstrndx != SHN_XINDEX)) {
1387 (void) printf("%-#*x%-11u%-#*x%-12u%u\n",
1388 field, EC_WORD(elf_head_p->e_phentsize),
1389 EC_WORD(elf_head_p->e_phnum),
1390 field, EC_WORD(elf_head_p->e_shentsize),
1391 EC_WORD(elf_head_p->e_shnum),
1392 EC_WORD(elf_head_p->e_shstrndx));
1393 } else {
1394 (void) printf("%-#*x%-11u%-#*x%-12uXINDEX\n",
1395 field, EC_WORD(elf_head_p->e_phentsize),
1396 EC_WORD(elf_head_p->e_phnum),
1397 field, EC_WORD(elf_head_p->e_shentsize),
1398 EC_WORD(elf_head_p->e_shnum));
1399 }
1400 if ((elf_head_p->e_shnum == 0) && (elf_head_p->e_shoff > 0)) {
1401 Elf_Scn *scn;
1402 GElf_Shdr shdr0;
1403 int field;
1404
1405 if (gelf_getclass(elf_file) == ELFCLASS64)
1406 field = 21;
1407 else
1408 field = 13;
1409 if (!p_flag) {
1410 (void) printf("\n **** SECTION HEADER[0] "
1411 "{Elf Extensions} ****\n");
1412 (void) printf(
1413 "[No]\tType\tFlags\t%-*s %-*s%-*s%sName\n",
1414 field, "Addr", field, "Offset", field,
1415 "Size(shnum)",
1416 /* compatibility: tab for elf32 */
1417 (field == 13) ? "\t" : " ");
1418 (void) printf("\tLn(strndx) Info\t%-*s Entsize\n",
1419 field, "Adralgn");
1420 }
1421 if ((scn = elf_getscn(elf_file, 0)) == NULL) {
1422 (void) fprintf(stderr,
1423 "%s: %s: elf_getscn failed: %s\n",
1424 prog_name, filename, elf_errmsg(-1));
1425 return (NULL);
1426 }
1427 if (gelf_getshdr(scn, &shdr0) == 0) {
1428 (void) fprintf(stderr,
1429 "%s: %s: gelf_getshdr: %s\n",
1430 prog_name, filename, elf_errmsg(-1));
1431 return (NULL);
1432 }
1433 (void) printf("[0]\t%u\t%llu\t", EC_WORD(shdr0.sh_type),
1434 EC_XWORD(shdr0.sh_flags));
1435
1436 (void) printf("%-#*llx %-#*llx%-*llu%s%-*u\n",
1437 field, EC_ADDR(shdr0.sh_addr),
1438 field, EC_OFF(shdr0.sh_offset),
1439 field, EC_XWORD(shdr0.sh_size),
1440 /* compatibility: tab for elf32 */
1441 ((field == 13) ? "\t" : " "),
1442 field, EC_WORD(shdr0.sh_name));
1443
1444 (void) printf("\t%u\t%u\t%-#*llx %-#*llx\n",
1445 EC_WORD(shdr0.sh_link),
1446 EC_WORD(shdr0.sh_info),
1447 field, EC_XWORD(shdr0.sh_addralign),
1448 field, EC_XWORD(shdr0.sh_entsize));
1449 }
1450 (void) printf("\n");
1451
1452 return (elf_head_p);
1453 }
1454
1455 /*
1456 * Print section contents. Input is an ELF file descriptor,
1457 * the ELF header, the SCNTAB structure,
1458 * the number of symbols, and the filename.
1459 * The number of sections,
1460 * and the offset into the SCNTAB structure will be
1461 * set in dump_section if d_flag or n_flag are set.
1462 * If v_flag is set, sections which can be interpreted will
1463 * be interpreted, otherwise raw data will be output in hexidecimal.
1464 */
1465 static void
1466 print_section(Elf *elf_file,
1467 GElf_Ehdr *p_ehdr, SCNTAB *p, int num_scns, char *filename)
1468 {
1469 unsigned char *p_sec;
1470 int i;
1471 size_t size;
1472
1473 for (i = 0; i < num_scns; i++, p++) {
1474 GElf_Shdr shdr;
1475
1476 size = 0;
1477 if (s_flag && !v_flag)
1478 p_sec = (unsigned char *)get_rawscn(p->p_sd, &size);
1479 else
1480 p_sec = (unsigned char *)get_scndata(p->p_sd, &size);
1481
1482 if ((gelf_getshdr(p->p_sd, &shdr) != NULL) &&
1483 (shdr.sh_type == SHT_NOBITS)) {
1484 continue;
1485 }
1486 if (s_flag && !v_flag) {
1487 (void) printf("\n%s:\n", p->scn_name);
1488 print_rawdata(p_sec, size);
1489 continue;
1490 }
1491 if (shdr.sh_type == SHT_SYMTAB) {
1492 dump_symbol_table(elf_file, p, filename);
1493 continue;
1494 }
1495 if (shdr.sh_type == SHT_DYNSYM) {
1496 dump_symbol_table(elf_file, p, filename);
1497 continue;
1498 }
1499 if (shdr.sh_type == SHT_STRTAB) {
1500 dump_string_table(p, 1);
1501 continue;
1502 }
1503 if (shdr.sh_type == SHT_RELA) {
1504 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1505 continue;
1506 }
1507 if (shdr.sh_type == SHT_REL) {
1508 dump_reloc_table(elf_file, p_ehdr, p, 1, filename);
1509 continue;
1510 }
1511 if (shdr.sh_type == SHT_DYNAMIC) {
1512 dump_dynamic(elf_file, p, 1, filename);
1513 continue;
1514 }
1515
1516 (void) printf("\n%s:\n", p->scn_name);
1517 print_rawdata(p_sec, size);
1518 }
1519 (void) printf("\n");
1520 }
1521
1522 /*
1523 * Print section contents. This function does not print the contents
1524 * of the sections but sets up the parameters and then calls
1525 * print_section to print the contents. Calling another function to print
1526 * the contents allows both -d and -n to work correctly
1527 * simultaneously. Input is an ELF file descriptor, the ELF header,
1528 * the SCNTAB structure, the number of sections, and the filename.
1529 * Set the range of sections if d_flag, and set section name if
1530 * n_flag.
1531 */
1532 static void
1533 dump_section(Elf *elf_file,
1534 GElf_Ehdr *p_ehdr, SCNTAB *s, int num_scns, char *filename)
1535 {
1536 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1537 int i;
1538 int found_it = 0; /* for use with -n section_name */
1539
1540 if (n_flag) {
1541 n_range = s;
1542
1543 for (i = 0; i < num_scns; i++, n_range++) {
1544 if ((strcmp(name, n_range->scn_name)) != 0)
1545 continue;
1546 else {
1547 found_it = 1;
1548 print_section(elf_file, p_ehdr,
1549 n_range, 1, filename);
1550 }
1551 }
1552
1553 if (!found_it) {
1554 (void) fprintf(stderr, "%s: %s: %s not found\n",
1555 prog_name, filename, name);
1556 }
1557 } /* end n_flag */
1558
1559 if (d_flag) {
1560 d_range = s;
1561 d_num = check_range(d_low, d_hi, num_scns, filename);
1562 if (d_num < 0)
1563 return;
1564 d_range += d_low - 1;
1565
1566 print_section(elf_file, p_ehdr, d_range, d_num, filename);
1567 } /* end d_flag */
1568
1569 if (!n_flag && !d_flag)
1570 print_section(elf_file, p_ehdr, s, num_scns, filename);
1571 }
1572
1573 /*
1574 * Print the section header table. This function does not print the contents
1575 * of the section headers but sets up the parameters and then calls
1576 * print_shdr to print the contents. Calling another function to print
1577 * the contents allows both -d and -n to work correctly
1578 * simultaneously. Input is the SCNTAB structure,
1579 * the number of sections from the ELF header, and the filename.
1580 * Set the range of section headers to print if d_flag, and set
1581 * name of section header to print if n_flag.
1582 */
1583 static void
1584 dump_shdr(Elf *elf_file, SCNTAB *s, int num_scns, char *filename)
1585 {
1586
1587 SCNTAB *n_range, *d_range; /* for use with -n and -d modifiers */
1588 int field;
1589 int i;
1590 int found_it = 0; /* for use with -n section_name */
1591
1592 if (gelf_getclass(elf_file) == ELFCLASS64)
1593 field = 21;
1594 else
1595 field = 13;
1596
1597 if (!p_flag) {
1598 (void) printf("\n **** SECTION HEADER TABLE ****\n");
1599 (void) printf("[No]\tType\tFlags\t%-*s %-*s %-*s%sName\n",
1600 field, "Addr", field, "Offset", field, "Size",
1601 /* compatibility: tab for elf32 */
1602 (field == 13) ? "\t" : " ");
1603 (void) printf("\tLink\tInfo\t%-*s Entsize\n\n",
1604 field, "Adralgn");
1605 }
1606
1607 if (n_flag) {
1608 n_range = s;
1609
1610 for (i = 1; i <= num_scns; i++, n_range++) {
1611 if ((strcmp(name, n_range->scn_name)) != 0)
1612 continue;
1613 else {
1614 found_it = 1;
1615 print_shdr(elf_file, n_range, 1, i);
1616 }
1617 }
1618
1619 if (!found_it) {
1620 (void) fprintf(stderr, "%s: %s: %s not found\n",
1621 prog_name, filename, name);
1622 }
1623 } /* end n_flag */
1624
1625 if (d_flag) {
1626 d_range = s;
1627 d_num = check_range(d_low, d_hi, num_scns, filename);
1628 if (d_num < 0)
1629 return;
1630 d_range += d_low - 1;
1631
1632 print_shdr(elf_file, d_range, d_num, d_low);
1633 } /* end d_flag */
1634
1635 if (!n_flag && !d_flag)
1636 print_shdr(elf_file, s, num_scns, 1);
1637 }
1638
1639 /*
1640 * Process all of the command line options (except
1641 * for -a, -g, -f, and -o). All of the options processed
1642 * by this function require the presence of the section
1643 * header table and will not be processed if it is not present.
1644 * Set up a buffer containing section name, section header,
1645 * and section descriptor for each section in the file. This
1646 * structure is used to avoid duplicate calls to libelf functions.
1647 * Structure members for the symbol table, the debugging information,
1648 * and the line number information are global. All of the
1649 * rest are local.
1650 */
1651 static void
1652 dump_section_table(Elf *elf_file, GElf_Ehdr *elf_head_p, char *filename)
1653 {
1654
1655 static SCNTAB *buffer, *p_scns;
1656 Elf_Scn *scn = 0;
1657 char *s_name = NULL;
1658 int found = 0;
1659 unsigned int num_scns;
1660 size_t shstrndx;
1661 size_t shnum;
1662
1663
1664 if (elf_getshdrnum(elf_file, &shnum) == -1) {
1665 (void) fprintf(stderr,
1666 "%s: %s: elf_getshdrnum failed: %s\n",
1667 prog_name, filename, elf_errmsg(-1));
1668 return;
1669 }
1670 if (elf_getshdrstrndx(elf_file, &shstrndx) == -1) {
1671 (void) fprintf(stderr,
1672 "%s: %s: elf_getshdrstrndx failed: %s\n",
1673 prog_name, filename, elf_errmsg(-1));
1674 return;
1675 }
1676
1677 if ((buffer = calloc(shnum, sizeof (SCNTAB))) == NULL) {
1678 (void) fprintf(stderr, "%s: %s: cannot calloc space\n",
1679 prog_name, filename);
1680 return;
1681 }
1682 /* LINTED */
1683 num_scns = (int)shnum - 1;
1684
1685 p_symtab = (SCNTAB *)0;
1686 p_dynsym = (SCNTAB *)0;
1687 p_scns = buffer;
1688 p_head_scns = buffer;
1689
1690 while ((scn = elf_nextscn(elf_file, scn)) != 0) {
1691 if ((gelf_getshdr(scn, &buffer->p_shdr)) == 0) {
1692 (void) fprintf(stderr,
1693 "%s: %s: %s\n", prog_name, filename,
1694 elf_errmsg(-1));
1695 return;
1696 }
1697 s_name = (char *)
1698 elf_strptr(elf_file, shstrndx, buffer->p_shdr.sh_name);
1699 buffer->scn_name = s_name ? s_name : (char *)UNKNOWN;
1700 buffer->p_sd = scn;
1701
1702 if (buffer->p_shdr.sh_type == SHT_SYMTAB) {
1703 found += 1;
1704 p_symtab = buffer;
1705 }
1706 if (buffer->p_shdr.sh_type == SHT_DYNSYM)
1707 p_dynsym = buffer;
1708 buffer++;
1709 }
1710
1711 /*
1712 * These functions depend upon the presence of the section header table
1713 * and will not be invoked in its absence
1714 */
1715 if (h_flag) {
1716 dump_shdr(elf_file, p_scns, num_scns, filename);
1717 }
1718 if (p_symtab && (t_flag || T_flag)) {
1719 dump_symbol_table(elf_file, p_symtab, filename);
1720 }
1721 if (c_flag) {
1722 dump_string_table(p_scns, num_scns);
1723 }
1724 if (r_flag) {
1725 dump_reloc_table(elf_file, elf_head_p,
1726 p_scns, num_scns, filename);
1727 }
1728 if (L_flag) {
1729 dump_dynamic(elf_file, p_scns, num_scns, filename);
1730 }
1731 if (s_flag) {
1732 dump_section(elf_file, elf_head_p, p_scns,
1733 num_scns, filename);
1734 }
1735 }
1736
1737 /*
1738 * Load the archive string table(s) (for extended-length strings)
1739 * into an in-core table/list
1740 */
1741 static struct stab_list_s *
1742 load_arstring_table(struct stab_list_s *STabList,
1743 int fd, Elf *elf_file, Elf_Arhdr *p_ar, char *filename)
1744 {
1745 off_t here;
1746 struct stab_list_s *STL_entry, *STL_next;
1747
1748 if (p_ar) {
1749 STL_entry = malloc(sizeof (struct stab_list_s));
1750 STL_entry->next = 0;
1751 STL_entry->strings = 0;
1752 STL_entry->size = 0;
1753
1754 if (!STabList)
1755 STabList = STL_entry;
1756 else {
1757 STL_next = STabList;
1758 while (STL_next->next != (void *)0)
1759 STL_next = STL_next->next;
1760 STL_next->next = STL_entry;
1761 }
1762
1763 STL_entry->size = p_ar->ar_size;
1764 STL_entry->strings = malloc(p_ar->ar_size);
1765 here = elf_getbase(elf_file);
1766 if ((lseek(fd, here, 0)) != here) {
1767 (void) fprintf(stderr,
1768 "%s: %s: could not lseek\n", prog_name, filename);
1769 }
1770
1771 if ((read(fd, STL_entry->strings, p_ar->ar_size)) == -1) {
1772 (void) fprintf(stderr,
1773 "%s: %s: could not read\n", prog_name, filename);
1774 }
1775 }
1776 return (STabList);
1777 }
1778
1779 /*
1780 * Print the archive header for each member of an archive.
1781 * Also call ar_sym_read to print the symbols in the
1782 * archive symbol table if g_flag. Input is a file descriptor,
1783 * an ELF file descriptor, and the filename. Putting the call
1784 * to dump the archive symbol table in this function is more
1785 * efficient since it is necessary to examine the archive member
1786 * name in the archive header to determine which member is the
1787 * symbol table.
1788 */
1789 static void
1790 dump_ar_hdr(int fd, Elf *elf_file, char *filename)
1791 {
1792 extern int v_flag, g_flag, a_flag, p_flag;
1793 Elf_Arhdr *p_ar;
1794 Elf *arf;
1795 Elf_Cmd cmd;
1796 int title = 0;
1797 int err = 0;
1798
1799 char buf[DATESIZE];
1800
1801 cmd = ELF_C_READ;
1802 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1803 p_ar = elf_getarhdr(arf);
1804 if (p_ar == NULL) {
1805 (void) fprintf(stderr,
1806 "%s: %s: %s\n", prog_name, filename,
1807 elf_errmsg(-1));
1808 continue;
1809 }
1810 if ((strcmp(p_ar->ar_name, "/") == 0) ||
1811 (strcmp(p_ar->ar_name, "/SYM64/") == 0)) {
1812 if (g_flag)
1813 ar_sym_read(elf_file, filename);
1814 } else if (strcmp(p_ar->ar_name, "//") == 0) {
1815 StringTableList = load_arstring_table(
1816 StringTableList, fd, arf, p_ar, filename);
1817 cmd = elf_next(arf);
1818 (void) elf_end(arf);
1819 continue;
1820 } else {
1821 if (a_flag) {
1822 (void) printf("%s[%s]:\n", filename,
1823 p_ar->ar_name);
1824 if (!p_flag && title == 0) {
1825 if (!v_flag)
1826 (void) printf(
1827 "\n\n\t\t\t***ARCHIVE HEADER***"
1828 "\n Date Uid Gid Mode Size Member Name\n\n");
1829 else
1830 (void) printf(
1831 "\n\n\t\t\t***ARCHIVE HEADER***"
1832 "\n Date Uid Gid Mode Size Member Name\n\n");
1833 title = 1;
1834 }
1835 if (!v_flag) {
1836 (void) printf(
1837 "\t0x%.8lx %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1838 p_ar->ar_date, (int)p_ar->ar_uid,
1839 (int)p_ar->ar_gid,
1840 (int)p_ar->ar_mode,
1841 p_ar->ar_size, p_ar->ar_name);
1842 } else {
1843 if ((strftime(buf, DATESIZE,
1844 "%b %d %H:%M:%S %Y",
1845 localtime(
1846 &(p_ar->ar_date)))) == 0) {
1847 (void) fprintf(stderr,
1848 "%s: %s: don't have enough space to store the date\n", prog_name, filename);
1849 exit(1);
1850 }
1851 (void) printf(
1852 "\t%s %6d %6d 0%.6ho 0x%.8lx %-s\n\n",
1853 buf, (int)p_ar->ar_uid,
1854 (int)p_ar->ar_gid,
1855 (int)p_ar->ar_mode,
1856 p_ar->ar_size, p_ar->ar_name);
1857 }
1858 }
1859 }
1860 cmd = elf_next(arf);
1861 (void) elf_end(arf);
1862 } /* end while */
1863
1864 err = elf_errno();
1865 if (err != 0) {
1866 (void) fprintf(stderr,
1867 "%s: %s: %s\n", prog_name, filename, elf_errmsg(err));
1868 }
1869 }
1870
1871 /*
1872 * Process member files of an archive. This function provides
1873 * a loop through an archive equivalent the processing of
1874 * each_file for individual object files.
1875 */
1876 static void
1877 dump_ar_files(int fd, Elf *elf_file, char *filename)
1878 {
1879 Elf_Arhdr *p_ar;
1880 Elf *arf;
1881 Elf_Cmd cmd;
1882 Elf_Kind file_type;
1883 GElf_Ehdr elf_head;
1884 char *fullname;
1885
1886 cmd = ELF_C_READ;
1887 while ((arf = elf_begin(fd, cmd, elf_file)) != 0) {
1888 size_t len;
1889
1890 p_ar = elf_getarhdr(arf);
1891 if (p_ar == NULL) {
1892 (void) fprintf(stderr, "%s: %s: %s\n",
1893 prog_name, filename, elf_errmsg(-1));
1894 return;
1895 }
1896 if (p_ar->ar_name[0] == '/') {
1897 cmd = elf_next(arf);
1898 (void) elf_end(arf);
1899 continue;
1900 }
1901
1902 len = strlen(filename) + strlen(p_ar->ar_name) + 3;
1903 if ((fullname = malloc(len)) == NULL)
1904 return;
1905 (void) snprintf(fullname, len, "%s[%s]", filename,
1906 p_ar->ar_name);
1907 (void) printf("\n%s:\n", fullname);
1908 file_type = elf_kind(arf);
1909 if (file_type == ELF_K_ELF) {
1910 if (dump_elf_header(arf, fullname, &elf_head) == NULL)
1911 return;
1912 if (o_flag)
1913 dump_exec_header(arf,
1914 (unsigned)elf_head.e_phnum, fullname);
1915 if (x_flag)
1916 dump_section_table(arf, &elf_head, fullname);
1917 } else {
1918 (void) fprintf(stderr, "%s: %s: invalid file type\n",
1919 prog_name, fullname);
1920 cmd = elf_next(arf);
1921 (void) elf_end(arf);
1922 continue;
1923 }
1924
1925 cmd = elf_next(arf);
1926 (void) elf_end(arf);
1927 } /* end while */
1928 }
1929
1930 /*
1931 * Takes a filename as input. Test first for a valid version
1932 * of libelf.a and exit on error. Process each valid file
1933 * or archive given as input on the command line. Check
1934 * for file type. If it is an archive, process the archive-
1935 * specific options first, then files within the archive.
1936 * If it is an ELF object file, process it; otherwise
1937 * warn that it is an invalid file type.
1938 * All options except the archive-specific and program
1939 * execution header are processed in the function, dump_section_table.
1940 */
1941 static void
1942 each_file(char *filename)
1943 {
1944 Elf *elf_file;
1945 GElf_Ehdr elf_head;
1946 int fd;
1947 Elf_Kind file_type;
1948
1949 struct stat buf;
1950
1951 Elf_Cmd cmd;
1952 errno = 0;
1953
1954 if (stat(filename, &buf) == -1) {
1955 int err = errno;
1956 (void) fprintf(stderr, "%s: %s: %s", prog_name, filename,
1957 strerror(err));
1958 return;
1959 }
1960
1961 if ((fd = open((filename), O_RDONLY)) == -1) {
1962 (void) fprintf(stderr, "%s: %s: cannot read\n", prog_name,
1963 filename);
1964 return;
1965 }
1966 cmd = ELF_C_READ;
1967 if ((elf_file = elf_begin(fd, cmd, (Elf *)0)) == NULL) {
1968 (void) fprintf(stderr, "%s: %s: %s\n", prog_name, filename,
1969 elf_errmsg(-1));
1970 return;
1971 }
1972
1973 file_type = elf_kind(elf_file);
1974 if (file_type == ELF_K_AR) {
1975 if (a_flag || g_flag) {
1976 dump_ar_hdr(fd, elf_file, filename);
1977 elf_file = elf_begin(fd, cmd, (Elf *)0);
1978 }
1979 if (z_flag)
1980 dump_ar_files(fd, elf_file, filename);
1981 } else {
1982 if (file_type == ELF_K_ELF) {
1983 (void) printf("\n%s:\n", filename);
1984 if (dump_elf_header(elf_file, filename, &elf_head)) {
1985 if (o_flag)
1986 dump_exec_header(elf_file,
1987 (unsigned)elf_head.e_phnum,
1988 filename);
1989 if (x_flag)
1990 dump_section_table(elf_file,
1991 &elf_head, filename);
1992 }
1993 } else {
1994 (void) fprintf(stderr, "%s: %s: invalid file type\n",
1995 prog_name, filename);
1996 }
1997 }
1998 (void) elf_end(elf_file);
1999 (void) close(fd);
2000 }
2001
2002 /*
2003 * Sets up flags for command line options given and then
2004 * calls each_file() to process each file.
2005 */
2006 int
2007 main(int argc, char *argv[], char *envp[])
2008 {
2009 char *optstr = OPTSTR; /* option string used by getopt() */
2010 int optchar;
2011
2012 /*
2013 * Check for a binary that better fits this architecture.
2014 */
2015 (void) conv_check_native(argv, envp);
2016
2017 prog_name = argv[0];
2018
2019 (void) setlocale(LC_ALL, "");
2020 while ((optchar = getopt(argc, argv, optstr)) != -1) {
2021 switch (optchar) {
2022 case 'a':
2023 a_flag = 1;
2024 x_flag = 1;
2025 break;
2026 case 'g':
2027 g_flag = 1;
2028 x_flag = 1;
2029 break;
2030 case 'v':
2031 v_flag = 1;
2032 break;
2033 case 'p':
2034 p_flag = 1;
2035 break;
2036 case 'f':
2037 f_flag = 1;
2038 z_flag = 1;
2039 break;
2040 case 'o':
2041 o_flag = 1;
2042 z_flag = 1;
2043 break;
2044 case 'h':
2045 h_flag = 1;
2046 x_flag = 1;
2047 z_flag = 1;
2048 break;
2049 case 's':
2050 s_flag = 1;
2051 x_flag = 1;
2052 z_flag = 1;
2053 break;
2054 case 'd':
2055 d_flag = 1;
2056 x_flag = 1;
2057 z_flag = 1;
2058 set_range(optarg, &d_low, &d_hi);
2059 break;
2060 case 'n':
2061 n_flag++;
2062 x_flag = 1;
2063 z_flag = 1;
2064 name = optarg;
2065 break;
2066 case 'r':
2067 r_flag = 1;
2068 x_flag = 1;
2069 z_flag = 1;
2070 break;
2071 case 't':
2072 t_flag = 1;
2073 x_flag = 1;
2074 z_flag = 1;
2075 break;
2076 case 'C':
2077 C_flag = 1;
2078 t_flag = 1;
2079 x_flag = 1;
2080 z_flag = 1;
2081 break;
2082 case 'T':
2083 T_flag = 1;
2084 x_flag = 1;
2085 z_flag = 1;
2086 set_range(optarg, &T_low, &T_hi);
2087 break;
2088 case 'c':
2089 c_flag = 1;
2090 x_flag = 1;
2091 z_flag = 1;
2092 break;
2093 case 'L':
2094 L_flag = 1;
2095 x_flag = 1;
2096 z_flag = 1;
2097 break;
2098 case 'V':
2099 V_flag = 1;
2100 (void) fprintf(stderr, "dump: %s %s\n",
2101 (const char *)SGU_PKG,
2102 (const char *)SGU_REL);
2103 break;
2104 case '?':
2105 errflag += 1;
2106 break;
2107 default:
2108 break;
2109 }
2110 }
2111
2112 if (errflag || (optind >= argc) || (!z_flag && !x_flag)) {
2113 if (!(V_flag && (argc == 2))) {
2114 usage();
2115 exit(269);
2116 }
2117 }
2118
2119 if (elf_version(EV_CURRENT) == EV_NONE) {
2120 (void) fprintf(stderr, "%s: libelf is out of date\n",
2121 prog_name);
2122 exit(101);
2123 }
2124
2125 while (optind < argc) {
2126 each_file(argv[optind]);
2127 optind++;
2128 }
2129 return (0);
2130 }
--- EOF ---