1 /*-
2 * Copyright (c) 2009-2015 Kai Wang
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/param.h>
28 #include <sys/queue.h>
29 #include <ar.h>
30 #include <assert.h>
31 #include <ctype.h>
32 #include <dwarf.h>
33 #include <err.h>
34 #include <fcntl.h>
35 #include <gelf.h>
36 #include <getopt.h>
37 #include <libdwarf.h>
38 #include <libelftc.h>
39 #include <libgen.h>
40 #include <stdarg.h>
41 #include <stdint.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <time.h>
46 #include <unistd.h>
47
48 #include "_elftc.h"
49
50 ELFTC_VCSID("$Id: readelf.c 3404 2016-02-13 15:45:17Z jkoshy $");
51
52 /*
53 * readelf(1) options.
54 */
55 #define RE_AA 0x00000001
56 #define RE_C 0x00000002
57 #define RE_DD 0x00000004
58 #define RE_D 0x00000008
59 #define RE_G 0x00000010
60 #define RE_H 0x00000020
61 #define RE_II 0x00000040
62 #define RE_I 0x00000080
63 #define RE_L 0x00000100
64 #define RE_NN 0x00000200
65 #define RE_N 0x00000400
66 #define RE_P 0x00000800
67 #define RE_R 0x00001000
68 #define RE_SS 0x00002000
69 #define RE_S 0x00004000
70 #define RE_T 0x00008000
71 #define RE_U 0x00010000
72 #define RE_VV 0x00020000
73 #define RE_WW 0x00040000
74 #define RE_W 0x00080000
75 #define RE_X 0x00100000
76
77 /*
78 * dwarf dump options.
79 */
80 #define DW_A 0x00000001
81 #define DW_FF 0x00000002
82 #define DW_F 0x00000004
83 #define DW_I 0x00000008
84 #define DW_LL 0x00000010
85 #define DW_L 0x00000020
86 #define DW_M 0x00000040
87 #define DW_O 0x00000080
88 #define DW_P 0x00000100
89 #define DW_RR 0x00000200
90 #define DW_R 0x00000400
91 #define DW_S 0x00000800
92
93 #define DW_DEFAULT_OPTIONS (DW_A | DW_F | DW_I | DW_L | DW_O | DW_P | \
94 DW_R | DW_RR | DW_S)
95
96 /*
97 * readelf(1) run control flags.
98 */
99 #define DISPLAY_FILENAME 0x0001
100
101 /*
102 * Internal data structure for sections.
103 */
104 struct section {
105 const char *name; /* section name */
106 Elf_Scn *scn; /* section scn */
107 uint64_t off; /* section offset */
108 uint64_t sz; /* section size */
109 uint64_t entsize; /* section entsize */
110 uint64_t align; /* section alignment */
111 uint64_t type; /* section type */
112 uint64_t flags; /* section flags */
113 uint64_t addr; /* section virtual addr */
114 uint32_t link; /* section link ndx */
115 uint32_t info; /* section info ndx */
116 };
117
118 struct dumpop {
119 union {
120 size_t si; /* section index */
121 const char *sn; /* section name */
122 } u;
123 enum {
124 DUMP_BY_INDEX = 0,
125 DUMP_BY_NAME
126 } type; /* dump type */
127 #define HEX_DUMP 0x0001
128 #define STR_DUMP 0x0002
129 int op; /* dump operation */
130 STAILQ_ENTRY(dumpop) dumpop_list;
131 };
132
133 struct symver {
134 const char *name;
135 int type;
136 };
137
138 /*
139 * Structure encapsulates the global data for readelf(1).
140 */
141 struct readelf {
142 const char *filename; /* current processing file. */
143 int options; /* command line options. */
144 int flags; /* run control flags. */
145 int dop; /* dwarf dump options. */
146 Elf *elf; /* underlying ELF descriptor. */
147 Elf *ar; /* archive ELF descriptor. */
148 Dwarf_Debug dbg; /* DWARF handle. */
149 Dwarf_Half cu_psize; /* DWARF CU pointer size. */
150 Dwarf_Half cu_osize; /* DWARF CU offset size. */
151 Dwarf_Half cu_ver; /* DWARF CU version. */
152 GElf_Ehdr ehdr; /* ELF header. */
153 int ec; /* ELF class. */
154 size_t shnum; /* #sections. */
155 struct section *vd_s; /* Verdef section. */
156 struct section *vn_s; /* Verneed section. */
157 struct section *vs_s; /* Versym section. */
158 uint16_t *vs; /* Versym array. */
159 int vs_sz; /* Versym array size. */
160 struct symver *ver; /* Version array. */
161 int ver_sz; /* Size of version array. */
162 struct section *sl; /* list of sections. */
163 STAILQ_HEAD(, dumpop) v_dumpop; /* list of dump ops. */
164 uint64_t (*dw_read)(Elf_Data *, uint64_t *, int);
165 uint64_t (*dw_decode)(uint8_t **, int);
166 };
167
168 enum options
169 {
170 OPTION_DEBUG_DUMP
171 };
172
173 static struct option longopts[] = {
174 {"all", no_argument, NULL, 'a'},
175 {"arch-specific", no_argument, NULL, 'A'},
176 {"archive-index", no_argument, NULL, 'c'},
177 {"debug-dump", optional_argument, NULL, OPTION_DEBUG_DUMP},
178 {"dynamic", no_argument, NULL, 'd'},
179 {"file-header", no_argument, NULL, 'h'},
180 {"full-section-name", no_argument, NULL, 'N'},
181 {"headers", no_argument, NULL, 'e'},
182 {"help", no_argument, 0, 'H'},
183 {"hex-dump", required_argument, NULL, 'x'},
184 {"histogram", no_argument, NULL, 'I'},
185 {"notes", no_argument, NULL, 'n'},
186 {"program-headers", no_argument, NULL, 'l'},
187 {"relocs", no_argument, NULL, 'r'},
188 {"sections", no_argument, NULL, 'S'},
189 {"section-headers", no_argument, NULL, 'S'},
190 {"section-groups", no_argument, NULL, 'g'},
191 {"section-details", no_argument, NULL, 't'},
192 {"segments", no_argument, NULL, 'l'},
193 {"string-dump", required_argument, NULL, 'p'},
194 {"symbols", no_argument, NULL, 's'},
195 {"syms", no_argument, NULL, 's'},
196 {"unwind", no_argument, NULL, 'u'},
197 {"use-dynamic", no_argument, NULL, 'D'},
198 {"version-info", no_argument, 0, 'V'},
199 {"version", no_argument, 0, 'v'},
200 {"wide", no_argument, 0, 'W'},
201 {NULL, 0, NULL, 0}
202 };
203
204 struct eflags_desc {
205 uint64_t flag;
206 const char *desc;
207 };
208
209 struct mips_option {
210 uint64_t flag;
211 const char *desc;
212 };
213
214 static void add_dumpop(struct readelf *re, size_t si, const char *sn, int op,
215 int t);
216 static const char *aeabi_adv_simd_arch(uint64_t simd);
217 static const char *aeabi_align_needed(uint64_t an);
218 static const char *aeabi_align_preserved(uint64_t ap);
219 static const char *aeabi_arm_isa(uint64_t ai);
220 static const char *aeabi_cpu_arch(uint64_t arch);
221 static const char *aeabi_cpu_arch_profile(uint64_t pf);
222 static const char *aeabi_div(uint64_t du);
223 static const char *aeabi_enum_size(uint64_t es);
224 static const char *aeabi_fp_16bit_format(uint64_t fp16);
225 static const char *aeabi_fp_arch(uint64_t fp);
226 static const char *aeabi_fp_denormal(uint64_t fd);
227 static const char *aeabi_fp_exceptions(uint64_t fe);
228 static const char *aeabi_fp_hpext(uint64_t fh);
229 static const char *aeabi_fp_number_model(uint64_t fn);
230 static const char *aeabi_fp_optm_goal(uint64_t fog);
231 static const char *aeabi_fp_rounding(uint64_t fr);
232 static const char *aeabi_hardfp(uint64_t hfp);
233 static const char *aeabi_mpext(uint64_t mp);
234 static const char *aeabi_optm_goal(uint64_t og);
235 static const char *aeabi_pcs_config(uint64_t pcs);
236 static const char *aeabi_pcs_got(uint64_t got);
237 static const char *aeabi_pcs_r9(uint64_t r9);
238 static const char *aeabi_pcs_ro(uint64_t ro);
239 static const char *aeabi_pcs_rw(uint64_t rw);
240 static const char *aeabi_pcs_wchar_t(uint64_t wt);
241 static const char *aeabi_t2ee(uint64_t t2ee);
242 static const char *aeabi_thumb_isa(uint64_t ti);
243 static const char *aeabi_fp_user_exceptions(uint64_t fu);
244 static const char *aeabi_unaligned_access(uint64_t ua);
245 static const char *aeabi_vfp_args(uint64_t va);
246 static const char *aeabi_virtual(uint64_t vt);
247 static const char *aeabi_wmmx_arch(uint64_t wmmx);
248 static const char *aeabi_wmmx_args(uint64_t wa);
249 static const char *elf_class(unsigned int class);
250 static const char *elf_endian(unsigned int endian);
251 static const char *elf_machine(unsigned int mach);
252 static const char *elf_osabi(unsigned int abi);
253 static const char *elf_type(unsigned int type);
254 static const char *elf_ver(unsigned int ver);
255 static const char *dt_type(unsigned int mach, unsigned int dtype);
256 static void dump_ar(struct readelf *re, int);
257 static void dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
258 static void dump_attributes(struct readelf *re);
259 static uint8_t *dump_compatibility_tag(uint8_t *p, uint8_t *pe);
260 static void dump_dwarf(struct readelf *re);
261 static void dump_dwarf_abbrev(struct readelf *re);
262 static void dump_dwarf_aranges(struct readelf *re);
263 static void dump_dwarf_block(struct readelf *re, uint8_t *b,
264 Dwarf_Unsigned len);
265 static void dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level);
266 static void dump_dwarf_frame(struct readelf *re, int alt);
267 static void dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie,
268 uint8_t *insts, Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf,
269 Dwarf_Addr pc, Dwarf_Debug dbg);
270 static int dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde,
271 Dwarf_Addr pc, Dwarf_Unsigned func_len, Dwarf_Half cie_ra);
272 static void dump_dwarf_frame_section(struct readelf *re, struct section *s,
273 int alt);
274 static void dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info);
275 static void dump_dwarf_macinfo(struct readelf *re);
276 static void dump_dwarf_line(struct readelf *re);
277 static void dump_dwarf_line_decoded(struct readelf *re);
278 static void dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr);
279 static void dump_dwarf_loclist(struct readelf *re);
280 static void dump_dwarf_pubnames(struct readelf *re);
281 static void dump_dwarf_ranges(struct readelf *re);
282 static void dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die,
283 Dwarf_Addr base);
284 static void dump_dwarf_str(struct readelf *re);
285 static void dump_eflags(struct readelf *re, uint64_t e_flags);
286 static void dump_elf(struct readelf *re);
287 static void dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab);
288 static void dump_dynamic(struct readelf *re);
289 static void dump_liblist(struct readelf *re);
290 static void dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe);
291 static void dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz);
292 static void dump_mips_options(struct readelf *re, struct section *s);
293 static void dump_mips_option_flags(const char *name, struct mips_option *opt,
294 uint64_t info);
295 static void dump_mips_reginfo(struct readelf *re, struct section *s);
296 static void dump_mips_specific_info(struct readelf *re);
297 static void dump_notes(struct readelf *re);
298 static void dump_notes_content(struct readelf *re, const char *buf, size_t sz,
299 off_t off);
300 static void dump_svr4_hash(struct section *s);
301 static void dump_svr4_hash64(struct readelf *re, struct section *s);
302 static void dump_gnu_hash(struct readelf *re, struct section *s);
303 static void dump_hash(struct readelf *re);
304 static void dump_phdr(struct readelf *re);
305 static void dump_ppc_attributes(uint8_t *p, uint8_t *pe);
306 static void dump_section_groups(struct readelf *re);
307 static void dump_symtab(struct readelf *re, int i);
308 static void dump_symtabs(struct readelf *re);
309 static uint8_t *dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe);
310 static void dump_ver(struct readelf *re);
311 static void dump_verdef(struct readelf *re, int dump);
312 static void dump_verneed(struct readelf *re, int dump);
313 static void dump_versym(struct readelf *re);
314 static const char *dwarf_reg(unsigned int mach, unsigned int reg);
315 static const char *dwarf_regname(struct readelf *re, unsigned int num);
316 static struct dumpop *find_dumpop(struct readelf *re, size_t si,
317 const char *sn, int op, int t);
318 static int get_ent_count(struct section *s, int *ent_count);
319 static char *get_regoff_str(struct readelf *re, Dwarf_Half reg,
320 Dwarf_Addr off);
321 static const char *get_string(struct readelf *re, int strtab, size_t off);
322 static const char *get_symbol_name(struct readelf *re, int symtab, int i);
323 static uint64_t get_symbol_value(struct readelf *re, int symtab, int i);
324 static void load_sections(struct readelf *re);
325 static const char *mips_abi_fp(uint64_t fp);
326 static const char *note_type(const char *note_name, unsigned int et,
327 unsigned int nt);
328 static const char *note_type_freebsd(unsigned int nt);
329 static const char *note_type_freebsd_core(unsigned int nt);
330 static const char *note_type_linux_core(unsigned int nt);
331 static const char *note_type_gnu(unsigned int nt);
332 static const char *note_type_netbsd(unsigned int nt);
333 static const char *note_type_openbsd(unsigned int nt);
334 static const char *note_type_unknown(unsigned int nt);
335 static const char *note_type_xen(unsigned int nt);
336 static const char *option_kind(uint8_t kind);
337 static const char *phdr_type(unsigned int ptype);
338 static const char *ppc_abi_fp(uint64_t fp);
339 static const char *ppc_abi_vector(uint64_t vec);
340 static const char *r_type(unsigned int mach, unsigned int type);
341 static void readelf_usage(int status);
342 static void readelf_version(void);
343 static void search_loclist_at(struct readelf *re, Dwarf_Die die,
344 Dwarf_Unsigned lowpc);
345 static void search_ver(struct readelf *re);
346 static const char *section_type(unsigned int mach, unsigned int stype);
347 static void set_cu_context(struct readelf *re, Dwarf_Half psize,
348 Dwarf_Half osize, Dwarf_Half ver);
349 static const char *st_bind(unsigned int sbind);
350 static const char *st_shndx(unsigned int shndx);
351 static const char *st_type(unsigned int mach, unsigned int stype);
352 static const char *st_vis(unsigned int svis);
353 static const char *top_tag(unsigned int tag);
354 static void unload_sections(struct readelf *re);
355 static uint64_t _read_lsb(Elf_Data *d, uint64_t *offsetp,
356 int bytes_to_read);
357 static uint64_t _read_msb(Elf_Data *d, uint64_t *offsetp,
358 int bytes_to_read);
359 static uint64_t _decode_lsb(uint8_t **data, int bytes_to_read);
360 static uint64_t _decode_msb(uint8_t **data, int bytes_to_read);
361 static int64_t _decode_sleb128(uint8_t **dp, uint8_t *dpe);
362 static uint64_t _decode_uleb128(uint8_t **dp, uint8_t *dpe);
363
364 static struct eflags_desc arm_eflags_desc[] = {
365 {EF_ARM_RELEXEC, "relocatable executable"},
366 {EF_ARM_HASENTRY, "has entry point"},
367 {EF_ARM_SYMSARESORTED, "sorted symbol tables"},
368 {EF_ARM_DYNSYMSUSESEGIDX, "dynamic symbols use segment index"},
369 {EF_ARM_MAPSYMSFIRST, "mapping symbols precede others"},
370 {EF_ARM_BE8, "BE8"},
371 {EF_ARM_LE8, "LE8"},
372 {EF_ARM_INTERWORK, "interworking enabled"},
373 {EF_ARM_APCS_26, "uses APCS/26"},
374 {EF_ARM_APCS_FLOAT, "uses APCS/float"},
375 {EF_ARM_PIC, "position independent"},
376 {EF_ARM_ALIGN8, "8 bit structure alignment"},
377 {EF_ARM_NEW_ABI, "uses new ABI"},
378 {EF_ARM_OLD_ABI, "uses old ABI"},
379 {EF_ARM_SOFT_FLOAT, "software FP"},
380 {EF_ARM_VFP_FLOAT, "VFP"},
381 {EF_ARM_MAVERICK_FLOAT, "Maverick FP"},
382 {0, NULL}
383 };
384
385 static struct eflags_desc mips_eflags_desc[] = {
386 {EF_MIPS_NOREORDER, "noreorder"},
387 {EF_MIPS_PIC, "pic"},
388 {EF_MIPS_CPIC, "cpic"},
389 {EF_MIPS_UCODE, "ugen_reserved"},
390 {EF_MIPS_ABI2, "abi2"},
391 {EF_MIPS_OPTIONS_FIRST, "odk first"},
392 {EF_MIPS_ARCH_ASE_MDMX, "mdmx"},
393 {EF_MIPS_ARCH_ASE_M16, "mips16"},
394 {0, NULL}
395 };
396
397 static struct eflags_desc powerpc_eflags_desc[] = {
398 {EF_PPC_EMB, "emb"},
399 {EF_PPC_RELOCATABLE, "relocatable"},
400 {EF_PPC_RELOCATABLE_LIB, "relocatable-lib"},
401 {0, NULL}
402 };
403
404 static struct eflags_desc sparc_eflags_desc[] = {
405 {EF_SPARC_32PLUS, "v8+"},
406 {EF_SPARC_SUN_US1, "ultrasparcI"},
407 {EF_SPARC_HAL_R1, "halr1"},
408 {EF_SPARC_SUN_US3, "ultrasparcIII"},
409 {0, NULL}
410 };
411
412 static const char *
elf_osabi(unsigned int abi)413 elf_osabi(unsigned int abi)
414 {
415 static char s_abi[32];
416
417 switch(abi) {
418 case ELFOSABI_NONE: return "NONE";
419 case ELFOSABI_HPUX: return "HPUX";
420 case ELFOSABI_NETBSD: return "NetBSD";
421 case ELFOSABI_GNU: return "GNU";
422 case ELFOSABI_HURD: return "HURD";
423 case ELFOSABI_86OPEN: return "86OPEN";
424 case ELFOSABI_SOLARIS: return "Solaris";
425 case ELFOSABI_AIX: return "AIX";
426 case ELFOSABI_IRIX: return "IRIX";
427 case ELFOSABI_FREEBSD: return "FreeBSD";
428 case ELFOSABI_TRU64: return "TRU64";
429 case ELFOSABI_MODESTO: return "MODESTO";
430 case ELFOSABI_OPENBSD: return "OpenBSD";
431 case ELFOSABI_OPENVMS: return "OpenVMS";
432 case ELFOSABI_NSK: return "NSK";
433 case ELFOSABI_ARM: return "ARM";
434 case ELFOSABI_STANDALONE: return "StandAlone";
435 default:
436 snprintf(s_abi, sizeof(s_abi), "<unknown: %#x>", abi);
437 return (s_abi);
438 }
439 };
440
441 static const char *
elf_machine(unsigned int mach)442 elf_machine(unsigned int mach)
443 {
444 static char s_mach[32];
445
446 switch (mach) {
447 case EM_NONE: return "Unknown machine";
448 case EM_M32: return "AT&T WE32100";
449 case EM_SPARC: return "Sun SPARC";
450 case EM_386: return "Intel i386";
451 case EM_68K: return "Motorola 68000";
452 case EM_IAMCU: return "Intel MCU";
453 case EM_88K: return "Motorola 88000";
454 case EM_860: return "Intel i860";
455 case EM_MIPS: return "MIPS R3000 Big-Endian only";
456 case EM_S370: return "IBM System/370";
457 case EM_MIPS_RS3_LE: return "MIPS R3000 Little-Endian";
458 case EM_PARISC: return "HP PA-RISC";
459 case EM_VPP500: return "Fujitsu VPP500";
460 case EM_SPARC32PLUS: return "SPARC v8plus";
461 case EM_960: return "Intel 80960";
462 case EM_PPC: return "PowerPC 32-bit";
463 case EM_PPC64: return "PowerPC 64-bit";
464 case EM_S390: return "IBM System/390";
465 case EM_V800: return "NEC V800";
466 case EM_FR20: return "Fujitsu FR20";
467 case EM_RH32: return "TRW RH-32";
468 case EM_RCE: return "Motorola RCE";
469 case EM_ARM: return "ARM";
470 case EM_SH: return "Hitachi SH";
471 case EM_SPARCV9: return "SPARC v9 64-bit";
472 case EM_TRICORE: return "Siemens TriCore embedded processor";
473 case EM_ARC: return "Argonaut RISC Core";
474 case EM_H8_300: return "Hitachi H8/300";
475 case EM_H8_300H: return "Hitachi H8/300H";
476 case EM_H8S: return "Hitachi H8S";
477 case EM_H8_500: return "Hitachi H8/500";
478 case EM_IA_64: return "Intel IA-64 Processor";
479 case EM_MIPS_X: return "Stanford MIPS-X";
480 case EM_COLDFIRE: return "Motorola ColdFire";
481 case EM_68HC12: return "Motorola M68HC12";
482 case EM_MMA: return "Fujitsu MMA";
483 case EM_PCP: return "Siemens PCP";
484 case EM_NCPU: return "Sony nCPU";
485 case EM_NDR1: return "Denso NDR1 microprocessor";
486 case EM_STARCORE: return "Motorola Star*Core processor";
487 case EM_ME16: return "Toyota ME16 processor";
488 case EM_ST100: return "STMicroelectronics ST100 processor";
489 case EM_TINYJ: return "Advanced Logic Corp. TinyJ processor";
490 case EM_X86_64: return "Advanced Micro Devices x86-64";
491 case EM_PDSP: return "Sony DSP Processor";
492 case EM_FX66: return "Siemens FX66 microcontroller";
493 case EM_ST9PLUS: return "STMicroelectronics ST9+ 8/16 microcontroller";
494 case EM_ST7: return "STmicroelectronics ST7 8-bit microcontroller";
495 case EM_68HC16: return "Motorola MC68HC16 microcontroller";
496 case EM_68HC11: return "Motorola MC68HC11 microcontroller";
497 case EM_68HC08: return "Motorola MC68HC08 microcontroller";
498 case EM_68HC05: return "Motorola MC68HC05 microcontroller";
499 case EM_SVX: return "Silicon Graphics SVx";
500 case EM_ST19: return "STMicroelectronics ST19 8-bit mc";
501 case EM_VAX: return "Digital VAX";
502 case EM_CRIS: return "Axis Communications 32-bit embedded processor";
503 case EM_JAVELIN: return "Infineon Tech. 32bit embedded processor";
504 case EM_FIREPATH: return "Element 14 64-bit DSP Processor";
505 case EM_ZSP: return "LSI Logic 16-bit DSP Processor";
506 case EM_MMIX: return "Donald Knuth's educational 64-bit proc";
507 case EM_HUANY: return "Harvard University MI object files";
508 case EM_PRISM: return "SiTera Prism";
509 case EM_AVR: return "Atmel AVR 8-bit microcontroller";
510 case EM_FR30: return "Fujitsu FR30";
511 case EM_D10V: return "Mitsubishi D10V";
512 case EM_D30V: return "Mitsubishi D30V";
513 case EM_V850: return "NEC v850";
514 case EM_M32R: return "Mitsubishi M32R";
515 case EM_MN10300: return "Matsushita MN10300";
516 case EM_MN10200: return "Matsushita MN10200";
517 case EM_PJ: return "picoJava";
518 case EM_OPENRISC: return "OpenRISC 32-bit embedded processor";
519 case EM_ARC_A5: return "ARC Cores Tangent-A5";
520 case EM_XTENSA: return "Tensilica Xtensa Architecture";
521 case EM_VIDEOCORE: return "Alphamosaic VideoCore processor";
522 case EM_TMM_GPP: return "Thompson Multimedia General Purpose Processor";
523 case EM_NS32K: return "National Semiconductor 32000 series";
524 case EM_TPC: return "Tenor Network TPC processor";
525 case EM_SNP1K: return "Trebia SNP 1000 processor";
526 case EM_ST200: return "STMicroelectronics ST200 microcontroller";
527 case EM_IP2K: return "Ubicom IP2xxx microcontroller family";
528 case EM_MAX: return "MAX Processor";
529 case EM_CR: return "National Semiconductor CompactRISC microprocessor";
530 case EM_F2MC16: return "Fujitsu F2MC16";
531 case EM_MSP430: return "TI embedded microcontroller msp430";
532 case EM_BLACKFIN: return "Analog Devices Blackfin (DSP) processor";
533 case EM_SE_C33: return "S1C33 Family of Seiko Epson processors";
534 case EM_SEP: return "Sharp embedded microprocessor";
535 case EM_ARCA: return "Arca RISC Microprocessor";
536 case EM_UNICORE: return "Microprocessor series from PKU-Unity Ltd";
537 case EM_AARCH64: return "AArch64";
538 case EM_RISCV: return "RISC-V";
539 default:
540 snprintf(s_mach, sizeof(s_mach), "<unknown: %#x>", mach);
541 return (s_mach);
542 }
543
544 }
545
546 static const char *
elf_class(unsigned int class)547 elf_class(unsigned int class)
548 {
549 static char s_class[32];
550
551 switch (class) {
552 case ELFCLASSNONE: return "none";
553 case ELFCLASS32: return "ELF32";
554 case ELFCLASS64: return "ELF64";
555 default:
556 snprintf(s_class, sizeof(s_class), "<unknown: %#x>", class);
557 return (s_class);
558 }
559 }
560
561 static const char *
elf_endian(unsigned int endian)562 elf_endian(unsigned int endian)
563 {
564 static char s_endian[32];
565
566 switch (endian) {
567 case ELFDATANONE: return "none";
568 case ELFDATA2LSB: return "2's complement, little endian";
569 case ELFDATA2MSB: return "2's complement, big endian";
570 default:
571 snprintf(s_endian, sizeof(s_endian), "<unknown: %#x>", endian);
572 return (s_endian);
573 }
574 }
575
576 static const char *
elf_type(unsigned int type)577 elf_type(unsigned int type)
578 {
579 static char s_type[32];
580
581 switch (type) {
582 case ET_NONE: return "NONE (None)";
583 case ET_REL: return "REL (Relocatable file)";
584 case ET_EXEC: return "EXEC (Executable file)";
585 case ET_DYN: return "DYN (Shared object file)";
586 case ET_CORE: return "CORE (Core file)";
587 default:
588 if (type >= ET_LOPROC)
589 snprintf(s_type, sizeof(s_type), "<proc: %#x>", type);
590 else if (type >= ET_LOOS && type <= ET_HIOS)
591 snprintf(s_type, sizeof(s_type), "<os: %#x>", type);
592 else
593 snprintf(s_type, sizeof(s_type), "<unknown: %#x>",
594 type);
595 return (s_type);
596 }
597 }
598
599 static const char *
elf_ver(unsigned int ver)600 elf_ver(unsigned int ver)
601 {
602 static char s_ver[32];
603
604 switch (ver) {
605 case EV_CURRENT: return "(current)";
606 case EV_NONE: return "(none)";
607 default:
608 snprintf(s_ver, sizeof(s_ver), "<unknown: %#x>",
609 ver);
610 return (s_ver);
611 }
612 }
613
614 static const char *
phdr_type(unsigned int ptype)615 phdr_type(unsigned int ptype)
616 {
617 static char s_ptype[32];
618
619 switch (ptype) {
620 case PT_NULL: return "NULL";
621 case PT_LOAD: return "LOAD";
622 case PT_DYNAMIC: return "DYNAMIC";
623 case PT_INTERP: return "INTERP";
624 case PT_NOTE: return "NOTE";
625 case PT_SHLIB: return "SHLIB";
626 case PT_PHDR: return "PHDR";
627 case PT_TLS: return "TLS";
628 case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
629 case PT_GNU_STACK: return "GNU_STACK";
630 case PT_GNU_RELRO: return "GNU_RELRO";
631 default:
632 if (ptype >= PT_LOPROC && ptype <= PT_HIPROC)
633 snprintf(s_ptype, sizeof(s_ptype), "LOPROC+%#x",
634 ptype - PT_LOPROC);
635 else if (ptype >= PT_LOOS && ptype <= PT_HIOS)
636 snprintf(s_ptype, sizeof(s_ptype), "LOOS+%#x",
637 ptype - PT_LOOS);
638 else
639 snprintf(s_ptype, sizeof(s_ptype), "<unknown: %#x>",
640 ptype);
641 return (s_ptype);
642 }
643 }
644
645 static const char *
section_type(unsigned int mach,unsigned int stype)646 section_type(unsigned int mach, unsigned int stype)
647 {
648 static char s_stype[32];
649
650 if (stype >= SHT_LOPROC && stype <= SHT_HIPROC) {
651 switch (mach) {
652 case EM_X86_64:
653 switch (stype) {
654 case SHT_AMD64_UNWIND: return "AMD64_UNWIND";
655 default:
656 break;
657 }
658 break;
659 case EM_MIPS:
660 case EM_MIPS_RS3_LE:
661 switch (stype) {
662 case SHT_MIPS_LIBLIST: return "MIPS_LIBLIST";
663 case SHT_MIPS_MSYM: return "MIPS_MSYM";
664 case SHT_MIPS_CONFLICT: return "MIPS_CONFLICT";
665 case SHT_MIPS_GPTAB: return "MIPS_GPTAB";
666 case SHT_MIPS_UCODE: return "MIPS_UCODE";
667 case SHT_MIPS_DEBUG: return "MIPS_DEBUG";
668 case SHT_MIPS_REGINFO: return "MIPS_REGINFO";
669 case SHT_MIPS_PACKAGE: return "MIPS_PACKAGE";
670 case SHT_MIPS_PACKSYM: return "MIPS_PACKSYM";
671 case SHT_MIPS_RELD: return "MIPS_RELD";
672 case SHT_MIPS_IFACE: return "MIPS_IFACE";
673 case SHT_MIPS_CONTENT: return "MIPS_CONTENT";
674 case SHT_MIPS_OPTIONS: return "MIPS_OPTIONS";
675 case SHT_MIPS_DELTASYM: return "MIPS_DELTASYM";
676 case SHT_MIPS_DELTAINST: return "MIPS_DELTAINST";
677 case SHT_MIPS_DELTACLASS: return "MIPS_DELTACLASS";
678 case SHT_MIPS_DWARF: return "MIPS_DWARF";
679 case SHT_MIPS_DELTADECL: return "MIPS_DELTADECL";
680 case SHT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
681 case SHT_MIPS_EVENTS: return "MIPS_EVENTS";
682 case SHT_MIPS_TRANSLATE: return "MIPS_TRANSLATE";
683 case SHT_MIPS_PIXIE: return "MIPS_PIXIE";
684 case SHT_MIPS_XLATE: return "MIPS_XLATE";
685 case SHT_MIPS_XLATE_DEBUG: return "MIPS_XLATE_DEBUG";
686 case SHT_MIPS_WHIRL: return "MIPS_WHIRL";
687 case SHT_MIPS_EH_REGION: return "MIPS_EH_REGION";
688 case SHT_MIPS_XLATE_OLD: return "MIPS_XLATE_OLD";
689 case SHT_MIPS_PDR_EXCEPTION: return "MIPS_PDR_EXCEPTION";
690 default:
691 break;
692 }
693 break;
694 default:
695 break;
696 }
697
698 snprintf(s_stype, sizeof(s_stype), "LOPROC+%#x",
699 stype - SHT_LOPROC);
700 return (s_stype);
701 }
702
703 switch (stype) {
704 case SHT_NULL: return "NULL";
705 case SHT_PROGBITS: return "PROGBITS";
706 case SHT_SYMTAB: return "SYMTAB";
707 case SHT_STRTAB: return "STRTAB";
708 case SHT_RELA: return "RELA";
709 case SHT_HASH: return "HASH";
710 case SHT_DYNAMIC: return "DYNAMIC";
711 case SHT_NOTE: return "NOTE";
712 case SHT_NOBITS: return "NOBITS";
713 case SHT_REL: return "REL";
714 case SHT_SHLIB: return "SHLIB";
715 case SHT_DYNSYM: return "DYNSYM";
716 case SHT_INIT_ARRAY: return "INIT_ARRAY";
717 case SHT_FINI_ARRAY: return "FINI_ARRAY";
718 case SHT_PREINIT_ARRAY: return "PREINIT_ARRAY";
719 case SHT_GROUP: return "GROUP";
720 case SHT_SYMTAB_SHNDX: return "SYMTAB_SHNDX";
721 case SHT_SUNW_dof: return "SUNW_dof";
722 case SHT_SUNW_cap: return "SUNW_cap";
723 case SHT_GNU_HASH: return "GNU_HASH";
724 case SHT_SUNW_ANNOTATE: return "SUNW_ANNOTATE";
725 case SHT_SUNW_DEBUGSTR: return "SUNW_DEBUGSTR";
726 case SHT_SUNW_DEBUG: return "SUNW_DEBUG";
727 case SHT_SUNW_move: return "SUNW_move";
728 case SHT_SUNW_COMDAT: return "SUNW_COMDAT";
729 case SHT_SUNW_syminfo: return "SUNW_syminfo";
730 case SHT_SUNW_verdef: return "SUNW_verdef";
731 case SHT_SUNW_verneed: return "SUNW_verneed";
732 case SHT_SUNW_versym: return "SUNW_versym";
733 default:
734 if (stype >= SHT_LOOS && stype <= SHT_HIOS)
735 snprintf(s_stype, sizeof(s_stype), "LOOS+%#x",
736 stype - SHT_LOOS);
737 else if (stype >= SHT_LOUSER)
738 snprintf(s_stype, sizeof(s_stype), "LOUSER+%#x",
739 stype - SHT_LOUSER);
740 else
741 snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
742 stype);
743 return (s_stype);
744 }
745 }
746
747 static const char *
dt_type(unsigned int mach,unsigned int dtype)748 dt_type(unsigned int mach, unsigned int dtype)
749 {
750 static char s_dtype[32];
751
752 if (dtype >= DT_LOPROC && dtype <= DT_HIPROC) {
753 switch (mach) {
754 case EM_ARM:
755 switch (dtype) {
756 case DT_ARM_SYMTABSZ:
757 return "ARM_SYMTABSZ";
758 default:
759 break;
760 }
761 break;
762 case EM_MIPS:
763 case EM_MIPS_RS3_LE:
764 switch (dtype) {
765 case DT_MIPS_RLD_VERSION:
766 return "MIPS_RLD_VERSION";
767 case DT_MIPS_TIME_STAMP:
768 return "MIPS_TIME_STAMP";
769 case DT_MIPS_ICHECKSUM:
770 return "MIPS_ICHECKSUM";
771 case DT_MIPS_IVERSION:
772 return "MIPS_IVERSION";
773 case DT_MIPS_FLAGS:
774 return "MIPS_FLAGS";
775 case DT_MIPS_BASE_ADDRESS:
776 return "MIPS_BASE_ADDRESS";
777 case DT_MIPS_CONFLICT:
778 return "MIPS_CONFLICT";
779 case DT_MIPS_LIBLIST:
780 return "MIPS_LIBLIST";
781 case DT_MIPS_LOCAL_GOTNO:
782 return "MIPS_LOCAL_GOTNO";
783 case DT_MIPS_CONFLICTNO:
784 return "MIPS_CONFLICTNO";
785 case DT_MIPS_LIBLISTNO:
786 return "MIPS_LIBLISTNO";
787 case DT_MIPS_SYMTABNO:
788 return "MIPS_SYMTABNO";
789 case DT_MIPS_UNREFEXTNO:
790 return "MIPS_UNREFEXTNO";
791 case DT_MIPS_GOTSYM:
792 return "MIPS_GOTSYM";
793 case DT_MIPS_HIPAGENO:
794 return "MIPS_HIPAGENO";
795 case DT_MIPS_RLD_MAP:
796 return "MIPS_RLD_MAP";
797 case DT_MIPS_DELTA_CLASS:
798 return "MIPS_DELTA_CLASS";
799 case DT_MIPS_DELTA_CLASS_NO:
800 return "MIPS_DELTA_CLASS_NO";
801 case DT_MIPS_DELTA_INSTANCE:
802 return "MIPS_DELTA_INSTANCE";
803 case DT_MIPS_DELTA_INSTANCE_NO:
804 return "MIPS_DELTA_INSTANCE_NO";
805 case DT_MIPS_DELTA_RELOC:
806 return "MIPS_DELTA_RELOC";
807 case DT_MIPS_DELTA_RELOC_NO:
808 return "MIPS_DELTA_RELOC_NO";
809 case DT_MIPS_DELTA_SYM:
810 return "MIPS_DELTA_SYM";
811 case DT_MIPS_DELTA_SYM_NO:
812 return "MIPS_DELTA_SYM_NO";
813 case DT_MIPS_DELTA_CLASSSYM:
814 return "MIPS_DELTA_CLASSSYM";
815 case DT_MIPS_DELTA_CLASSSYM_NO:
816 return "MIPS_DELTA_CLASSSYM_NO";
817 case DT_MIPS_CXX_FLAGS:
818 return "MIPS_CXX_FLAGS";
819 case DT_MIPS_PIXIE_INIT:
820 return "MIPS_PIXIE_INIT";
821 case DT_MIPS_SYMBOL_LIB:
822 return "MIPS_SYMBOL_LIB";
823 case DT_MIPS_LOCALPAGE_GOTIDX:
824 return "MIPS_LOCALPAGE_GOTIDX";
825 case DT_MIPS_LOCAL_GOTIDX:
826 return "MIPS_LOCAL_GOTIDX";
827 case DT_MIPS_HIDDEN_GOTIDX:
828 return "MIPS_HIDDEN_GOTIDX";
829 case DT_MIPS_PROTECTED_GOTIDX:
830 return "MIPS_PROTECTED_GOTIDX";
831 case DT_MIPS_OPTIONS:
832 return "MIPS_OPTIONS";
833 case DT_MIPS_INTERFACE:
834 return "MIPS_INTERFACE";
835 case DT_MIPS_DYNSTR_ALIGN:
836 return "MIPS_DYNSTR_ALIGN";
837 case DT_MIPS_INTERFACE_SIZE:
838 return "MIPS_INTERFACE_SIZE";
839 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
840 return "MIPS_RLD_TEXT_RESOLVE_ADDR";
841 case DT_MIPS_PERF_SUFFIX:
842 return "MIPS_PERF_SUFFIX";
843 case DT_MIPS_COMPACT_SIZE:
844 return "MIPS_COMPACT_SIZE";
845 case DT_MIPS_GP_VALUE:
846 return "MIPS_GP_VALUE";
847 case DT_MIPS_AUX_DYNAMIC:
848 return "MIPS_AUX_DYNAMIC";
849 case DT_MIPS_PLTGOT:
850 return "MIPS_PLTGOT";
851 case DT_MIPS_RLD_OBJ_UPDATE:
852 return "MIPS_RLD_OBJ_UPDATE";
853 case DT_MIPS_RWPLT:
854 return "MIPS_RWPLT";
855 default:
856 break;
857 }
858 break;
859 case EM_SPARC:
860 case EM_SPARC32PLUS:
861 case EM_SPARCV9:
862 switch (dtype) {
863 case DT_SPARC_REGISTER:
864 return "DT_SPARC_REGISTER";
865 default:
866 break;
867 }
868 break;
869 default:
870 break;
871 }
872 snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
873 return (s_dtype);
874 }
875
876 switch (dtype) {
877 case DT_NULL: return "NULL";
878 case DT_NEEDED: return "NEEDED";
879 case DT_PLTRELSZ: return "PLTRELSZ";
880 case DT_PLTGOT: return "PLTGOT";
881 case DT_HASH: return "HASH";
882 case DT_STRTAB: return "STRTAB";
883 case DT_SYMTAB: return "SYMTAB";
884 case DT_RELA: return "RELA";
885 case DT_RELASZ: return "RELASZ";
886 case DT_RELAENT: return "RELAENT";
887 case DT_STRSZ: return "STRSZ";
888 case DT_SYMENT: return "SYMENT";
889 case DT_INIT: return "INIT";
890 case DT_FINI: return "FINI";
891 case DT_SONAME: return "SONAME";
892 case DT_RPATH: return "RPATH";
893 case DT_SYMBOLIC: return "SYMBOLIC";
894 case DT_REL: return "REL";
895 case DT_RELSZ: return "RELSZ";
896 case DT_RELENT: return "RELENT";
897 case DT_PLTREL: return "PLTREL";
898 case DT_DEBUG: return "DEBUG";
899 case DT_TEXTREL: return "TEXTREL";
900 case DT_JMPREL: return "JMPREL";
901 case DT_BIND_NOW: return "BIND_NOW";
902 case DT_INIT_ARRAY: return "INIT_ARRAY";
903 case DT_FINI_ARRAY: return "FINI_ARRAY";
904 case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
905 case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
906 case DT_RUNPATH: return "RUNPATH";
907 case DT_FLAGS: return "FLAGS";
908 case DT_PREINIT_ARRAY: return "PREINIT_ARRAY";
909 case DT_PREINIT_ARRAYSZ: return "PREINIT_ARRAYSZ";
910 case DT_MAXPOSTAGS: return "MAXPOSTAGS";
911 case DT_SUNW_AUXILIARY: return "SUNW_AUXILIARY";
912 case DT_SUNW_RTLDINF: return "SUNW_RTLDINF";
913 case DT_SUNW_FILTER: return "SUNW_FILTER";
914 case DT_SUNW_CAP: return "SUNW_CAP";
915 case DT_CHECKSUM: return "CHECKSUM";
916 case DT_PLTPADSZ: return "PLTPADSZ";
917 case DT_MOVEENT: return "MOVEENT";
918 case DT_MOVESZ: return "MOVESZ";
919 case DT_FEATURE: return "FEATURE";
920 case DT_POSFLAG_1: return "POSFLAG_1";
921 case DT_SYMINSZ: return "SYMINSZ";
922 case DT_SYMINENT: return "SYMINENT";
923 case DT_GNU_HASH: return "GNU_HASH";
924 case DT_GNU_CONFLICT: return "GNU_CONFLICT";
925 case DT_GNU_LIBLIST: return "GNU_LIBLIST";
926 case DT_CONFIG: return "CONFIG";
927 case DT_DEPAUDIT: return "DEPAUDIT";
928 case DT_AUDIT: return "AUDIT";
929 case DT_PLTPAD: return "PLTPAD";
930 case DT_MOVETAB: return "MOVETAB";
931 case DT_SYMINFO: return "SYMINFO";
932 case DT_VERSYM: return "VERSYM";
933 case DT_RELACOUNT: return "RELACOUNT";
934 case DT_RELCOUNT: return "RELCOUNT";
935 case DT_FLAGS_1: return "FLAGS_1";
936 case DT_VERDEF: return "VERDEF";
937 case DT_VERDEFNUM: return "VERDEFNUM";
938 case DT_VERNEED: return "VERNEED";
939 case DT_VERNEEDNUM: return "VERNEEDNUM";
940 case DT_AUXILIARY: return "AUXILIARY";
941 case DT_USED: return "USED";
942 case DT_FILTER: return "FILTER";
943 case DT_GNU_PRELINKED: return "GNU_PRELINKED";
944 case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
945 case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
946 default:
947 snprintf(s_dtype, sizeof(s_dtype), "<unknown: %#x>", dtype);
948 return (s_dtype);
949 }
950 }
951
952 static const char *
st_bind(unsigned int sbind)953 st_bind(unsigned int sbind)
954 {
955 static char s_sbind[32];
956
957 switch (sbind) {
958 case STB_LOCAL: return "LOCAL";
959 case STB_GLOBAL: return "GLOBAL";
960 case STB_WEAK: return "WEAK";
961 case STB_GNU_UNIQUE: return "UNIQUE";
962 default:
963 if (sbind >= STB_LOOS && sbind <= STB_HIOS)
964 return "OS";
965 else if (sbind >= STB_LOPROC && sbind <= STB_HIPROC)
966 return "PROC";
967 else
968 snprintf(s_sbind, sizeof(s_sbind), "<unknown: %#x>",
969 sbind);
970 return (s_sbind);
971 }
972 }
973
974 static const char *
st_type(unsigned int mach,unsigned int stype)975 st_type(unsigned int mach, unsigned int stype)
976 {
977 static char s_stype[32];
978
979 switch (stype) {
980 case STT_NOTYPE: return "NOTYPE";
981 case STT_OBJECT: return "OBJECT";
982 case STT_FUNC: return "FUNC";
983 case STT_SECTION: return "SECTION";
984 case STT_FILE: return "FILE";
985 case STT_COMMON: return "COMMON";
986 case STT_TLS: return "TLS";
987 default:
988 if (stype >= STT_LOOS && stype <= STT_HIOS)
989 snprintf(s_stype, sizeof(s_stype), "OS+%#x",
990 stype - STT_LOOS);
991 else if (stype >= STT_LOPROC && stype <= STT_HIPROC) {
992 if (mach == EM_SPARCV9 && stype == STT_SPARC_REGISTER)
993 return "REGISTER";
994 snprintf(s_stype, sizeof(s_stype), "PROC+%#x",
995 stype - STT_LOPROC);
996 } else
997 snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>",
998 stype);
999 return (s_stype);
1000 }
1001 }
1002
1003 static const char *
st_vis(unsigned int svis)1004 st_vis(unsigned int svis)
1005 {
1006 static char s_svis[32];
1007
1008 switch(svis) {
1009 case STV_DEFAULT: return "DEFAULT";
1010 case STV_INTERNAL: return "INTERNAL";
1011 case STV_HIDDEN: return "HIDDEN";
1012 case STV_PROTECTED: return "PROTECTED";
1013 default:
1014 snprintf(s_svis, sizeof(s_svis), "<unknown: %#x>", svis);
1015 return (s_svis);
1016 }
1017 }
1018
1019 static const char *
st_shndx(unsigned int shndx)1020 st_shndx(unsigned int shndx)
1021 {
1022 static char s_shndx[32];
1023
1024 switch (shndx) {
1025 case SHN_UNDEF: return "UND";
1026 case SHN_ABS: return "ABS";
1027 case SHN_COMMON: return "COM";
1028 default:
1029 if (shndx >= SHN_LOPROC && shndx <= SHN_HIPROC)
1030 return "PRC";
1031 else if (shndx >= SHN_LOOS && shndx <= SHN_HIOS)
1032 return "OS";
1033 else
1034 snprintf(s_shndx, sizeof(s_shndx), "%u", shndx);
1035 return (s_shndx);
1036 }
1037 }
1038
1039 static struct {
1040 const char *ln;
1041 char sn;
1042 int value;
1043 } section_flag[] = {
1044 {"WRITE", 'W', SHF_WRITE},
1045 {"ALLOC", 'A', SHF_ALLOC},
1046 {"EXEC", 'X', SHF_EXECINSTR},
1047 {"MERGE", 'M', SHF_MERGE},
1048 {"STRINGS", 'S', SHF_STRINGS},
1049 {"INFO LINK", 'I', SHF_INFO_LINK},
1050 {"OS NONCONF", 'O', SHF_OS_NONCONFORMING},
1051 {"GROUP", 'G', SHF_GROUP},
1052 {"TLS", 'T', SHF_TLS},
1053 {NULL, 0, 0}
1054 };
1055
1056 static const char *
r_type(unsigned int mach,unsigned int type)1057 r_type(unsigned int mach, unsigned int type)
1058 {
1059 static char s_type[32];
1060
1061 switch(mach) {
1062 case EM_386:
1063 case EM_IAMCU:
1064 switch(type) {
1065 case 0: return "R_386_NONE";
1066 case 1: return "R_386_32";
1067 case 2: return "R_386_PC32";
1068 case 3: return "R_386_GOT32";
1069 case 4: return "R_386_PLT32";
1070 case 5: return "R_386_COPY";
1071 case 6: return "R_386_GLOB_DAT";
1072 case 7: return "R_386_JUMP_SLOT";
1073 case 8: return "R_386_RELATIVE";
1074 case 9: return "R_386_GOTOFF";
1075 case 10: return "R_386_GOTPC";
1076 case 14: return "R_386_TLS_TPOFF";
1077 case 15: return "R_386_TLS_IE";
1078 case 16: return "R_386_TLS_GOTIE";
1079 case 17: return "R_386_TLS_LE";
1080 case 18: return "R_386_TLS_GD";
1081 case 19: return "R_386_TLS_LDM";
1082 case 24: return "R_386_TLS_GD_32";
1083 case 25: return "R_386_TLS_GD_PUSH";
1084 case 26: return "R_386_TLS_GD_CALL";
1085 case 27: return "R_386_TLS_GD_POP";
1086 case 28: return "R_386_TLS_LDM_32";
1087 case 29: return "R_386_TLS_LDM_PUSH";
1088 case 30: return "R_386_TLS_LDM_CALL";
1089 case 31: return "R_386_TLS_LDM_POP";
1090 case 32: return "R_386_TLS_LDO_32";
1091 case 33: return "R_386_TLS_IE_32";
1092 case 34: return "R_386_TLS_LE_32";
1093 case 35: return "R_386_TLS_DTPMOD32";
1094 case 36: return "R_386_TLS_DTPOFF32";
1095 case 37: return "R_386_TLS_TPOFF32";
1096 }
1097 break;
1098 case EM_AARCH64:
1099 switch(type) {
1100 case 0: return "R_AARCH64_NONE";
1101 case 257: return "R_AARCH64_ABS64";
1102 case 258: return "R_AARCH64_ABS32";
1103 case 259: return "R_AARCH64_ABS16";
1104 case 260: return "R_AARCH64_PREL64";
1105 case 261: return "R_AARCH64_PREL32";
1106 case 262: return "R_AARCH64_PREL16";
1107 case 263: return "R_AARCH64_MOVW_UABS_G0";
1108 case 264: return "R_AARCH64_MOVW_UABS_G0_NC";
1109 case 265: return "R_AARCH64_MOVW_UABS_G1";
1110 case 266: return "R_AARCH64_MOVW_UABS_G1_NC";
1111 case 267: return "R_AARCH64_MOVW_UABS_G2";
1112 case 268: return "R_AARCH64_MOVW_UABS_G2_NC";
1113 case 269: return "R_AARCH64_MOVW_UABS_G3";
1114 case 270: return "R_AARCH64_MOVW_SABS_G0";
1115 case 271: return "R_AARCH64_MOVW_SABS_G1";
1116 case 272: return "R_AARCH64_MOVW_SABS_G2";
1117 case 273: return "R_AARCH64_LD_PREL_LO19";
1118 case 274: return "R_AARCH64_ADR_PREL_LO21";
1119 case 275: return "R_AARCH64_ADR_PREL_PG_HI21";
1120 case 276: return "R_AARCH64_ADR_PREL_PG_HI21_NC";
1121 case 277: return "R_AARCH64_ADD_ABS_LO12_NC";
1122 case 278: return "R_AARCH64_LDST8_ABS_LO12_NC";
1123 case 279: return "R_AARCH64_TSTBR14";
1124 case 280: return "R_AARCH64_CONDBR19";
1125 case 282: return "R_AARCH64_JUMP26";
1126 case 283: return "R_AARCH64_CALL26";
1127 case 284: return "R_AARCH64_LDST16_ABS_LO12_NC";
1128 case 285: return "R_AARCH64_LDST32_ABS_LO12_NC";
1129 case 286: return "R_AARCH64_LDST64_ABS_LO12_NC";
1130 case 287: return "R_AARCH64_MOVW_PREL_G0";
1131 case 288: return "R_AARCH64_MOVW_PREL_G0_NC";
1132 case 289: return "R_AARCH64_MOVW_PREL_G1";
1133 case 290: return "R_AARCH64_MOVW_PREL_G1_NC";
1134 case 291: return "R_AARCH64_MOVW_PREL_G2";
1135 case 292: return "R_AARCH64_MOVW_PREL_G2_NC";
1136 case 293: return "R_AARCH64_MOVW_PREL_G3";
1137 case 299: return "R_AARCH64_LDST128_ABS_LO12_NC";
1138 case 300: return "R_AARCH64_MOVW_GOTOFF_G0";
1139 case 301: return "R_AARCH64_MOVW_GOTOFF_G0_NC";
1140 case 302: return "R_AARCH64_MOVW_GOTOFF_G1";
1141 case 303: return "R_AARCH64_MOVW_GOTOFF_G1_NC";
1142 case 304: return "R_AARCH64_MOVW_GOTOFF_G2";
1143 case 305: return "R_AARCH64_MOVW_GOTOFF_G2_NC";
1144 case 306: return "R_AARCH64_MOVW_GOTOFF_G3";
1145 case 307: return "R_AARCH64_GOTREL64";
1146 case 308: return "R_AARCH64_GOTREL32";
1147 case 309: return "R_AARCH64_GOT_LD_PREL19";
1148 case 310: return "R_AARCH64_LD64_GOTOFF_LO15";
1149 case 311: return "R_AARCH64_ADR_GOT_PAGE";
1150 case 312: return "R_AARCH64_LD64_GOT_LO12_NC";
1151 case 313: return "R_AARCH64_LD64_GOTPAGE_LO15";
1152 case 1024: return "R_AARCH64_COPY";
1153 case 1025: return "R_AARCH64_GLOB_DAT";
1154 case 1026: return "R_AARCH64_JUMP_SLOT";
1155 case 1027: return "R_AARCH64_RELATIVE";
1156 case 1028: return "R_AARCH64_TLS_DTPREL64";
1157 case 1029: return "R_AARCH64_TLS_DTPMOD64";
1158 case 1030: return "R_AARCH64_TLS_TPREL64";
1159 case 1031: return "R_AARCH64_TLSDESC";
1160 case 1032: return "R_AARCH64_IRELATIVE";
1161 }
1162 break;
1163 case EM_ARM:
1164 switch(type) {
1165 case 0: return "R_ARM_NONE";
1166 case 1: return "R_ARM_PC24";
1167 case 2: return "R_ARM_ABS32";
1168 case 3: return "R_ARM_REL32";
1169 case 4: return "R_ARM_PC13";
1170 case 5: return "R_ARM_ABS16";
1171 case 6: return "R_ARM_ABS12";
1172 case 7: return "R_ARM_THM_ABS5";
1173 case 8: return "R_ARM_ABS8";
1174 case 9: return "R_ARM_SBREL32";
1175 case 10: return "R_ARM_THM_PC22";
1176 case 11: return "R_ARM_THM_PC8";
1177 case 12: return "R_ARM_AMP_VCALL9";
1178 case 13: return "R_ARM_TLS_DESC";
1179 /* Obsolete R_ARM_SWI24 is also 13 */
1180 case 14: return "R_ARM_THM_SWI8";
1181 case 15: return "R_ARM_XPC25";
1182 case 16: return "R_ARM_THM_XPC22";
1183 case 17: return "R_ARM_TLS_DTPMOD32";
1184 case 18: return "R_ARM_TLS_DTPOFF32";
1185 case 19: return "R_ARM_TLS_TPOFF32";
1186 case 20: return "R_ARM_COPY";
1187 case 21: return "R_ARM_GLOB_DAT";
1188 case 22: return "R_ARM_JUMP_SLOT";
1189 case 23: return "R_ARM_RELATIVE";
1190 case 24: return "R_ARM_GOTOFF";
1191 case 25: return "R_ARM_GOTPC";
1192 case 26: return "R_ARM_GOT32";
1193 case 27: return "R_ARM_PLT32";
1194 case 28: return "R_ARM_CALL";
1195 case 29: return "R_ARM_JUMP24";
1196 case 30: return "R_ARM_THM_JUMP24";
1197 case 31: return "R_ARM_BASE_ABS";
1198 case 38: return "R_ARM_TARGET1";
1199 case 40: return "R_ARM_V4BX";
1200 case 42: return "R_ARM_PREL31";
1201 case 43: return "R_ARM_MOVW_ABS_NC";
1202 case 44: return "R_ARM_MOVT_ABS";
1203 case 45: return "R_ARM_MOVW_PREL_NC";
1204 case 46: return "R_ARM_MOVT_PREL";
1205 case 100: return "R_ARM_GNU_VTENTRY";
1206 case 101: return "R_ARM_GNU_VTINHERIT";
1207 case 250: return "R_ARM_RSBREL32";
1208 case 251: return "R_ARM_THM_RPC22";
1209 case 252: return "R_ARM_RREL32";
1210 case 253: return "R_ARM_RABS32";
1211 case 254: return "R_ARM_RPC24";
1212 case 255: return "R_ARM_RBASE";
1213 }
1214 break;
1215 case EM_IA_64:
1216 switch(type) {
1217 case 0: return "R_IA_64_NONE";
1218 case 33: return "R_IA_64_IMM14";
1219 case 34: return "R_IA_64_IMM22";
1220 case 35: return "R_IA_64_IMM64";
1221 case 36: return "R_IA_64_DIR32MSB";
1222 case 37: return "R_IA_64_DIR32LSB";
1223 case 38: return "R_IA_64_DIR64MSB";
1224 case 39: return "R_IA_64_DIR64LSB";
1225 case 42: return "R_IA_64_GPREL22";
1226 case 43: return "R_IA_64_GPREL64I";
1227 case 44: return "R_IA_64_GPREL32MSB";
1228 case 45: return "R_IA_64_GPREL32LSB";
1229 case 46: return "R_IA_64_GPREL64MSB";
1230 case 47: return "R_IA_64_GPREL64LSB";
1231 case 50: return "R_IA_64_LTOFF22";
1232 case 51: return "R_IA_64_LTOFF64I";
1233 case 58: return "R_IA_64_PLTOFF22";
1234 case 59: return "R_IA_64_PLTOFF64I";
1235 case 62: return "R_IA_64_PLTOFF64MSB";
1236 case 63: return "R_IA_64_PLTOFF64LSB";
1237 case 67: return "R_IA_64_FPTR64I";
1238 case 68: return "R_IA_64_FPTR32MSB";
1239 case 69: return "R_IA_64_FPTR32LSB";
1240 case 70: return "R_IA_64_FPTR64MSB";
1241 case 71: return "R_IA_64_FPTR64LSB";
1242 case 72: return "R_IA_64_PCREL60B";
1243 case 73: return "R_IA_64_PCREL21B";
1244 case 74: return "R_IA_64_PCREL21M";
1245 case 75: return "R_IA_64_PCREL21F";
1246 case 76: return "R_IA_64_PCREL32MSB";
1247 case 77: return "R_IA_64_PCREL32LSB";
1248 case 78: return "R_IA_64_PCREL64MSB";
1249 case 79: return "R_IA_64_PCREL64LSB";
1250 case 82: return "R_IA_64_LTOFF_FPTR22";
1251 case 83: return "R_IA_64_LTOFF_FPTR64I";
1252 case 84: return "R_IA_64_LTOFF_FPTR32MSB";
1253 case 85: return "R_IA_64_LTOFF_FPTR32LSB";
1254 case 86: return "R_IA_64_LTOFF_FPTR64MSB";
1255 case 87: return "R_IA_64_LTOFF_FPTR64LSB";
1256 case 92: return "R_IA_64_SEGREL32MSB";
1257 case 93: return "R_IA_64_SEGREL32LSB";
1258 case 94: return "R_IA_64_SEGREL64MSB";
1259 case 95: return "R_IA_64_SEGREL64LSB";
1260 case 100: return "R_IA_64_SECREL32MSB";
1261 case 101: return "R_IA_64_SECREL32LSB";
1262 case 102: return "R_IA_64_SECREL64MSB";
1263 case 103: return "R_IA_64_SECREL64LSB";
1264 case 108: return "R_IA_64_REL32MSB";
1265 case 109: return "R_IA_64_REL32LSB";
1266 case 110: return "R_IA_64_REL64MSB";
1267 case 111: return "R_IA_64_REL64LSB";
1268 case 116: return "R_IA_64_LTV32MSB";
1269 case 117: return "R_IA_64_LTV32LSB";
1270 case 118: return "R_IA_64_LTV64MSB";
1271 case 119: return "R_IA_64_LTV64LSB";
1272 case 121: return "R_IA_64_PCREL21BI";
1273 case 122: return "R_IA_64_PCREL22";
1274 case 123: return "R_IA_64_PCREL64I";
1275 case 128: return "R_IA_64_IPLTMSB";
1276 case 129: return "R_IA_64_IPLTLSB";
1277 case 133: return "R_IA_64_SUB";
1278 case 134: return "R_IA_64_LTOFF22X";
1279 case 135: return "R_IA_64_LDXMOV";
1280 case 145: return "R_IA_64_TPREL14";
1281 case 146: return "R_IA_64_TPREL22";
1282 case 147: return "R_IA_64_TPREL64I";
1283 case 150: return "R_IA_64_TPREL64MSB";
1284 case 151: return "R_IA_64_TPREL64LSB";
1285 case 154: return "R_IA_64_LTOFF_TPREL22";
1286 case 166: return "R_IA_64_DTPMOD64MSB";
1287 case 167: return "R_IA_64_DTPMOD64LSB";
1288 case 170: return "R_IA_64_LTOFF_DTPMOD22";
1289 case 177: return "R_IA_64_DTPREL14";
1290 case 178: return "R_IA_64_DTPREL22";
1291 case 179: return "R_IA_64_DTPREL64I";
1292 case 180: return "R_IA_64_DTPREL32MSB";
1293 case 181: return "R_IA_64_DTPREL32LSB";
1294 case 182: return "R_IA_64_DTPREL64MSB";
1295 case 183: return "R_IA_64_DTPREL64LSB";
1296 case 186: return "R_IA_64_LTOFF_DTPREL22";
1297 }
1298 break;
1299 case EM_MIPS:
1300 switch(type) {
1301 case 0: return "R_MIPS_NONE";
1302 case 1: return "R_MIPS_16";
1303 case 2: return "R_MIPS_32";
1304 case 3: return "R_MIPS_REL32";
1305 case 4: return "R_MIPS_26";
1306 case 5: return "R_MIPS_HI16";
1307 case 6: return "R_MIPS_LO16";
1308 case 7: return "R_MIPS_GPREL16";
1309 case 8: return "R_MIPS_LITERAL";
1310 case 9: return "R_MIPS_GOT16";
1311 case 10: return "R_MIPS_PC16";
1312 case 11: return "R_MIPS_CALL16";
1313 case 12: return "R_MIPS_GPREL32";
1314 case 21: return "R_MIPS_GOTHI16";
1315 case 22: return "R_MIPS_GOTLO16";
1316 case 30: return "R_MIPS_CALLHI16";
1317 case 31: return "R_MIPS_CALLLO16";
1318 case 38: return "R_MIPS_TLS_DTPMOD32";
1319 case 39: return "R_MIPS_TLS_DTPREL32";
1320 case 40: return "R_MIPS_TLS_DTPMOD64";
1321 case 41: return "R_MIPS_TLS_DTPREL64";
1322 case 42: return "R_MIPS_TLS_GD";
1323 case 43: return "R_MIPS_TLS_LDM";
1324 case 44: return "R_MIPS_TLS_DTPREL_HI16";
1325 case 45: return "R_MIPS_TLS_DTPREL_LO16";
1326 case 46: return "R_MIPS_TLS_GOTTPREL";
1327 case 47: return "R_MIPS_TLS_TPREL32";
1328 case 48: return "R_MIPS_TLS_TPREL64";
1329 case 49: return "R_MIPS_TLS_TPREL_HI16";
1330 case 50: return "R_MIPS_TLS_TPREL_LO16";
1331 }
1332 break;
1333 case EM_PPC:
1334 switch(type) {
1335 case 0: return "R_PPC_NONE";
1336 case 1: return "R_PPC_ADDR32";
1337 case 2: return "R_PPC_ADDR24";
1338 case 3: return "R_PPC_ADDR16";
1339 case 4: return "R_PPC_ADDR16_LO";
1340 case 5: return "R_PPC_ADDR16_HI";
1341 case 6: return "R_PPC_ADDR16_HA";
1342 case 7: return "R_PPC_ADDR14";
1343 case 8: return "R_PPC_ADDR14_BRTAKEN";
1344 case 9: return "R_PPC_ADDR14_BRNTAKEN";
1345 case 10: return "R_PPC_REL24";
1346 case 11: return "R_PPC_REL14";
1347 case 12: return "R_PPC_REL14_BRTAKEN";
1348 case 13: return "R_PPC_REL14_BRNTAKEN";
1349 case 14: return "R_PPC_GOT16";
1350 case 15: return "R_PPC_GOT16_LO";
1351 case 16: return "R_PPC_GOT16_HI";
1352 case 17: return "R_PPC_GOT16_HA";
1353 case 18: return "R_PPC_PLTREL24";
1354 case 19: return "R_PPC_COPY";
1355 case 20: return "R_PPC_GLOB_DAT";
1356 case 21: return "R_PPC_JMP_SLOT";
1357 case 22: return "R_PPC_RELATIVE";
1358 case 23: return "R_PPC_LOCAL24PC";
1359 case 24: return "R_PPC_UADDR32";
1360 case 25: return "R_PPC_UADDR16";
1361 case 26: return "R_PPC_REL32";
1362 case 27: return "R_PPC_PLT32";
1363 case 28: return "R_PPC_PLTREL32";
1364 case 29: return "R_PPC_PLT16_LO";
1365 case 30: return "R_PPC_PLT16_HI";
1366 case 31: return "R_PPC_PLT16_HA";
1367 case 32: return "R_PPC_SDAREL16";
1368 case 33: return "R_PPC_SECTOFF";
1369 case 34: return "R_PPC_SECTOFF_LO";
1370 case 35: return "R_PPC_SECTOFF_HI";
1371 case 36: return "R_PPC_SECTOFF_HA";
1372 case 67: return "R_PPC_TLS";
1373 case 68: return "R_PPC_DTPMOD32";
1374 case 69: return "R_PPC_TPREL16";
1375 case 70: return "R_PPC_TPREL16_LO";
1376 case 71: return "R_PPC_TPREL16_HI";
1377 case 72: return "R_PPC_TPREL16_HA";
1378 case 73: return "R_PPC_TPREL32";
1379 case 74: return "R_PPC_DTPREL16";
1380 case 75: return "R_PPC_DTPREL16_LO";
1381 case 76: return "R_PPC_DTPREL16_HI";
1382 case 77: return "R_PPC_DTPREL16_HA";
1383 case 78: return "R_PPC_DTPREL32";
1384 case 79: return "R_PPC_GOT_TLSGD16";
1385 case 80: return "R_PPC_GOT_TLSGD16_LO";
1386 case 81: return "R_PPC_GOT_TLSGD16_HI";
1387 case 82: return "R_PPC_GOT_TLSGD16_HA";
1388 case 83: return "R_PPC_GOT_TLSLD16";
1389 case 84: return "R_PPC_GOT_TLSLD16_LO";
1390 case 85: return "R_PPC_GOT_TLSLD16_HI";
1391 case 86: return "R_PPC_GOT_TLSLD16_HA";
1392 case 87: return "R_PPC_GOT_TPREL16";
1393 case 88: return "R_PPC_GOT_TPREL16_LO";
1394 case 89: return "R_PPC_GOT_TPREL16_HI";
1395 case 90: return "R_PPC_GOT_TPREL16_HA";
1396 case 101: return "R_PPC_EMB_NADDR32";
1397 case 102: return "R_PPC_EMB_NADDR16";
1398 case 103: return "R_PPC_EMB_NADDR16_LO";
1399 case 104: return "R_PPC_EMB_NADDR16_HI";
1400 case 105: return "R_PPC_EMB_NADDR16_HA";
1401 case 106: return "R_PPC_EMB_SDAI16";
1402 case 107: return "R_PPC_EMB_SDA2I16";
1403 case 108: return "R_PPC_EMB_SDA2REL";
1404 case 109: return "R_PPC_EMB_SDA21";
1405 case 110: return "R_PPC_EMB_MRKREF";
1406 case 111: return "R_PPC_EMB_RELSEC16";
1407 case 112: return "R_PPC_EMB_RELST_LO";
1408 case 113: return "R_PPC_EMB_RELST_HI";
1409 case 114: return "R_PPC_EMB_RELST_HA";
1410 case 115: return "R_PPC_EMB_BIT_FLD";
1411 case 116: return "R_PPC_EMB_RELSDA";
1412 }
1413 break;
1414 case EM_RISCV:
1415 switch(type) {
1416 case 0: return "R_RISCV_NONE";
1417 case 1: return "R_RISCV_32";
1418 case 2: return "R_RISCV_64";
1419 case 3: return "R_RISCV_RELATIVE";
1420 case 4: return "R_RISCV_COPY";
1421 case 5: return "R_RISCV_JUMP_SLOT";
1422 case 6: return "R_RISCV_TLS_DTPMOD32";
1423 case 7: return "R_RISCV_TLS_DTPMOD64";
1424 case 8: return "R_RISCV_TLS_DTPREL32";
1425 case 9: return "R_RISCV_TLS_DTPREL64";
1426 case 10: return "R_RISCV_TLS_TPREL32";
1427 case 11: return "R_RISCV_TLS_TPREL64";
1428 case 16: return "R_RISCV_BRANCH";
1429 case 17: return "R_RISCV_JAL";
1430 case 18: return "R_RISCV_CALL";
1431 case 19: return "R_RISCV_CALL_PLT";
1432 case 20: return "R_RISCV_GOT_HI20";
1433 case 21: return "R_RISCV_TLS_GOT_HI20";
1434 case 22: return "R_RISCV_TLS_GD_HI20";
1435 case 23: return "R_RISCV_PCREL_HI20";
1436 case 24: return "R_RISCV_PCREL_LO12_I";
1437 case 25: return "R_RISCV_PCREL_LO12_S";
1438 case 26: return "R_RISCV_HI20";
1439 case 27: return "R_RISCV_LO12_I";
1440 case 28: return "R_RISCV_LO12_S";
1441 case 29: return "R_RISCV_TPREL_HI20";
1442 case 30: return "R_RISCV_TPREL_LO12_I";
1443 case 31: return "R_RISCV_TPREL_LO12_S";
1444 case 32: return "R_RISCV_TPREL_ADD";
1445 case 33: return "R_RISCV_ADD8";
1446 case 34: return "R_RISCV_ADD16";
1447 case 35: return "R_RISCV_ADD32";
1448 case 36: return "R_RISCV_ADD64";
1449 case 37: return "R_RISCV_SUB8";
1450 case 38: return "R_RISCV_SUB16";
1451 case 39: return "R_RISCV_SUB32";
1452 case 40: return "R_RISCV_SUB64";
1453 case 41: return "R_RISCV_GNU_VTINHERIT";
1454 case 42: return "R_RISCV_GNU_VTENTRY";
1455 case 43: return "R_RISCV_ALIGN";
1456 case 44: return "R_RISCV_RVC_BRANCH";
1457 case 45: return "R_RISCV_RVC_JUMP";
1458 }
1459 break;
1460 case EM_SPARC:
1461 case EM_SPARCV9:
1462 switch(type) {
1463 case 0: return "R_SPARC_NONE";
1464 case 1: return "R_SPARC_8";
1465 case 2: return "R_SPARC_16";
1466 case 3: return "R_SPARC_32";
1467 case 4: return "R_SPARC_DISP8";
1468 case 5: return "R_SPARC_DISP16";
1469 case 6: return "R_SPARC_DISP32";
1470 case 7: return "R_SPARC_WDISP30";
1471 case 8: return "R_SPARC_WDISP22";
1472 case 9: return "R_SPARC_HI22";
1473 case 10: return "R_SPARC_22";
1474 case 11: return "R_SPARC_13";
1475 case 12: return "R_SPARC_LO10";
1476 case 13: return "R_SPARC_GOT10";
1477 case 14: return "R_SPARC_GOT13";
1478 case 15: return "R_SPARC_GOT22";
1479 case 16: return "R_SPARC_PC10";
1480 case 17: return "R_SPARC_PC22";
1481 case 18: return "R_SPARC_WPLT30";
1482 case 19: return "R_SPARC_COPY";
1483 case 20: return "R_SPARC_GLOB_DAT";
1484 case 21: return "R_SPARC_JMP_SLOT";
1485 case 22: return "R_SPARC_RELATIVE";
1486 case 23: return "R_SPARC_UA32";
1487 case 24: return "R_SPARC_PLT32";
1488 case 25: return "R_SPARC_HIPLT22";
1489 case 26: return "R_SPARC_LOPLT10";
1490 case 27: return "R_SPARC_PCPLT32";
1491 case 28: return "R_SPARC_PCPLT22";
1492 case 29: return "R_SPARC_PCPLT10";
1493 case 30: return "R_SPARC_10";
1494 case 31: return "R_SPARC_11";
1495 case 32: return "R_SPARC_64";
1496 case 33: return "R_SPARC_OLO10";
1497 case 34: return "R_SPARC_HH22";
1498 case 35: return "R_SPARC_HM10";
1499 case 36: return "R_SPARC_LM22";
1500 case 37: return "R_SPARC_PC_HH22";
1501 case 38: return "R_SPARC_PC_HM10";
1502 case 39: return "R_SPARC_PC_LM22";
1503 case 40: return "R_SPARC_WDISP16";
1504 case 41: return "R_SPARC_WDISP19";
1505 case 42: return "R_SPARC_GLOB_JMP";
1506 case 43: return "R_SPARC_7";
1507 case 44: return "R_SPARC_5";
1508 case 45: return "R_SPARC_6";
1509 case 46: return "R_SPARC_DISP64";
1510 case 47: return "R_SPARC_PLT64";
1511 case 48: return "R_SPARC_HIX22";
1512 case 49: return "R_SPARC_LOX10";
1513 case 50: return "R_SPARC_H44";
1514 case 51: return "R_SPARC_M44";
1515 case 52: return "R_SPARC_L44";
1516 case 53: return "R_SPARC_REGISTER";
1517 case 54: return "R_SPARC_UA64";
1518 case 55: return "R_SPARC_UA16";
1519 case 56: return "R_SPARC_TLS_GD_HI22";
1520 case 57: return "R_SPARC_TLS_GD_LO10";
1521 case 58: return "R_SPARC_TLS_GD_ADD";
1522 case 59: return "R_SPARC_TLS_GD_CALL";
1523 case 60: return "R_SPARC_TLS_LDM_HI22";
1524 case 61: return "R_SPARC_TLS_LDM_LO10";
1525 case 62: return "R_SPARC_TLS_LDM_ADD";
1526 case 63: return "R_SPARC_TLS_LDM_CALL";
1527 case 64: return "R_SPARC_TLS_LDO_HIX22";
1528 case 65: return "R_SPARC_TLS_LDO_LOX10";
1529 case 66: return "R_SPARC_TLS_LDO_ADD";
1530 case 67: return "R_SPARC_TLS_IE_HI22";
1531 case 68: return "R_SPARC_TLS_IE_LO10";
1532 case 69: return "R_SPARC_TLS_IE_LD";
1533 case 70: return "R_SPARC_TLS_IE_LDX";
1534 case 71: return "R_SPARC_TLS_IE_ADD";
1535 case 72: return "R_SPARC_TLS_LE_HIX22";
1536 case 73: return "R_SPARC_TLS_LE_LOX10";
1537 case 74: return "R_SPARC_TLS_DTPMOD32";
1538 case 75: return "R_SPARC_TLS_DTPMOD64";
1539 case 76: return "R_SPARC_TLS_DTPOFF32";
1540 case 77: return "R_SPARC_TLS_DTPOFF64";
1541 case 78: return "R_SPARC_TLS_TPOFF32";
1542 case 79: return "R_SPARC_TLS_TPOFF64";
1543 }
1544 break;
1545 case EM_X86_64:
1546 switch(type) {
1547 case 0: return "R_X86_64_NONE";
1548 case 1: return "R_X86_64_64";
1549 case 2: return "R_X86_64_PC32";
1550 case 3: return "R_X86_64_GOT32";
1551 case 4: return "R_X86_64_PLT32";
1552 case 5: return "R_X86_64_COPY";
1553 case 6: return "R_X86_64_GLOB_DAT";
1554 case 7: return "R_X86_64_JUMP_SLOT";
1555 case 8: return "R_X86_64_RELATIVE";
1556 case 9: return "R_X86_64_GOTPCREL";
1557 case 10: return "R_X86_64_32";
1558 case 11: return "R_X86_64_32S";
1559 case 12: return "R_X86_64_16";
1560 case 13: return "R_X86_64_PC16";
1561 case 14: return "R_X86_64_8";
1562 case 15: return "R_X86_64_PC8";
1563 case 16: return "R_X86_64_DTPMOD64";
1564 case 17: return "R_X86_64_DTPOFF64";
1565 case 18: return "R_X86_64_TPOFF64";
1566 case 19: return "R_X86_64_TLSGD";
1567 case 20: return "R_X86_64_TLSLD";
1568 case 21: return "R_X86_64_DTPOFF32";
1569 case 22: return "R_X86_64_GOTTPOFF";
1570 case 23: return "R_X86_64_TPOFF32";
1571 case 24: return "R_X86_64_PC64";
1572 case 25: return "R_X86_64_GOTOFF64";
1573 case 26: return "R_X86_64_GOTPC32";
1574 case 27: return "R_X86_64_GOT64";
1575 case 28: return "R_X86_64_GOTPCREL64";
1576 case 29: return "R_X86_64_GOTPC64";
1577 case 30: return "R_X86_64_GOTPLT64";
1578 case 31: return "R_X86_64_PLTOFF64";
1579 case 32: return "R_X86_64_SIZE32";
1580 case 33: return "R_X86_64_SIZE64";
1581 case 34: return "R_X86_64_GOTPC32_TLSDESC";
1582 case 35: return "R_X86_64_TLSDESC_CALL";
1583 case 36: return "R_X86_64_TLSDESC";
1584 case 37: return "R_X86_64_IRELATIVE";
1585 }
1586 break;
1587 }
1588
1589 snprintf(s_type, sizeof(s_type), "<unknown: %#x>", type);
1590 return (s_type);
1591 }
1592
1593 static const char *
note_type(const char * name,unsigned int et,unsigned int nt)1594 note_type(const char *name, unsigned int et, unsigned int nt)
1595 {
1596 if ((strcmp(name, "CORE") == 0 || strcmp(name, "LINUX") == 0) &&
1597 et == ET_CORE)
1598 return note_type_linux_core(nt);
1599 else if (strcmp(name, "FreeBSD") == 0)
1600 if (et == ET_CORE)
1601 return note_type_freebsd_core(nt);
1602 else
1603 return note_type_freebsd(nt);
1604 else if (strcmp(name, "GNU") == 0 && et != ET_CORE)
1605 return note_type_gnu(nt);
1606 else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE)
1607 return note_type_netbsd(nt);
1608 else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE)
1609 return note_type_openbsd(nt);
1610 else if (strcmp(name, "Xen") == 0 && et != ET_CORE)
1611 return note_type_xen(nt);
1612 return note_type_unknown(nt);
1613 }
1614
1615 static const char *
note_type_freebsd(unsigned int nt)1616 note_type_freebsd(unsigned int nt)
1617 {
1618 switch (nt) {
1619 case 1: return "NT_FREEBSD_ABI_TAG";
1620 case 2: return "NT_FREEBSD_NOINIT_TAG";
1621 case 3: return "NT_FREEBSD_ARCH_TAG";
1622 default: return (note_type_unknown(nt));
1623 }
1624 }
1625
1626 static const char *
note_type_freebsd_core(unsigned int nt)1627 note_type_freebsd_core(unsigned int nt)
1628 {
1629 switch (nt) {
1630 case 1: return "NT_PRSTATUS";
1631 case 2: return "NT_FPREGSET";
1632 case 3: return "NT_PRPSINFO";
1633 case 7: return "NT_THRMISC";
1634 case 8: return "NT_PROCSTAT_PROC";
1635 case 9: return "NT_PROCSTAT_FILES";
1636 case 10: return "NT_PROCSTAT_VMMAP";
1637 case 11: return "NT_PROCSTAT_GROUPS";
1638 case 12: return "NT_PROCSTAT_UMASK";
1639 case 13: return "NT_PROCSTAT_RLIMIT";
1640 case 14: return "NT_PROCSTAT_OSREL";
1641 case 15: return "NT_PROCSTAT_PSSTRINGS";
1642 case 16: return "NT_PROCSTAT_AUXV";
1643 case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1644 default: return (note_type_unknown(nt));
1645 }
1646 }
1647
1648 static const char *
note_type_linux_core(unsigned int nt)1649 note_type_linux_core(unsigned int nt)
1650 {
1651 switch (nt) {
1652 case 1: return "NT_PRSTATUS (Process status)";
1653 case 2: return "NT_FPREGSET (Floating point information)";
1654 case 3: return "NT_PRPSINFO (Process information)";
1655 case 4: return "NT_TASKSTRUCT (Task structure)";
1656 case 6: return "NT_AUXV (Auxiliary vector)";
1657 case 10: return "NT_PSTATUS (Linux process status)";
1658 case 12: return "NT_FPREGS (Linux floating point regset)";
1659 case 13: return "NT_PSINFO (Linux process information)";
1660 case 16: return "NT_LWPSTATUS (Linux lwpstatus_t type)";
1661 case 17: return "NT_LWPSINFO (Linux lwpinfo_t type)";
1662 case 18: return "NT_WIN32PSTATUS (win32_pstatus structure)";
1663 case 0x100: return "NT_PPC_VMX (ppc Altivec registers)";
1664 case 0x102: return "NT_PPC_VSX (ppc VSX registers)";
1665 case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)";
1666 case 0x300: return "NT_S390_HIGH_GPRS (s390 upper register halves)";
1667 case 0x301: return "NT_S390_TIMER (s390 timer register)";
1668 case 0x302: return "NT_S390_TODCMP (s390 TOD comparator register)";
1669 case 0x303: return "NT_S390_TODPREG (s390 TOD programmable register)";
1670 case 0x304: return "NT_S390_CTRS (s390 control registers)";
1671 case 0x305: return "NT_S390_PREFIX (s390 prefix register)";
1672 case 0x400: return "NT_ARM_VFP (arm VFP registers)";
1673 case 0x46494c45UL: return "NT_FILE (mapped files)";
1674 case 0x46E62B7FUL: return "NT_PRXFPREG (Linux user_xfpregs structure)";
1675 case 0x53494749UL: return "NT_SIGINFO (siginfo_t data)";
1676 default: return (note_type_unknown(nt));
1677 }
1678 }
1679
1680 static const char *
note_type_gnu(unsigned int nt)1681 note_type_gnu(unsigned int nt)
1682 {
1683 switch (nt) {
1684 case 1: return "NT_GNU_ABI_TAG";
1685 case 2: return "NT_GNU_HWCAP (Hardware capabilities)";
1686 case 3: return "NT_GNU_BUILD_ID (Build id set by ld(1))";
1687 case 4: return "NT_GNU_GOLD_VERSION (GNU gold version)";
1688 default: return (note_type_unknown(nt));
1689 }
1690 }
1691
1692 static const char *
note_type_netbsd(unsigned int nt)1693 note_type_netbsd(unsigned int nt)
1694 {
1695 switch (nt) {
1696 case 1: return "NT_NETBSD_IDENT";
1697 default: return (note_type_unknown(nt));
1698 }
1699 }
1700
1701 static const char *
note_type_openbsd(unsigned int nt)1702 note_type_openbsd(unsigned int nt)
1703 {
1704 switch (nt) {
1705 case 1: return "NT_OPENBSD_IDENT";
1706 default: return (note_type_unknown(nt));
1707 }
1708 }
1709
1710 static const char *
note_type_unknown(unsigned int nt)1711 note_type_unknown(unsigned int nt)
1712 {
1713 static char s_nt[32];
1714
1715 snprintf(s_nt, sizeof(s_nt),
1716 nt >= 0x100 ? "<unknown: 0x%x>" : "<unknown: %u>", nt);
1717 return (s_nt);
1718 }
1719
1720 static const char *
note_type_xen(unsigned int nt)1721 note_type_xen(unsigned int nt)
1722 {
1723 switch (nt) {
1724 case 0: return "XEN_ELFNOTE_INFO";
1725 case 1: return "XEN_ELFNOTE_ENTRY";
1726 case 2: return "XEN_ELFNOTE_HYPERCALL_PAGE";
1727 case 3: return "XEN_ELFNOTE_VIRT_BASE";
1728 case 4: return "XEN_ELFNOTE_PADDR_OFFSET";
1729 case 5: return "XEN_ELFNOTE_XEN_VERSION";
1730 case 6: return "XEN_ELFNOTE_GUEST_OS";
1731 case 7: return "XEN_ELFNOTE_GUEST_VERSION";
1732 case 8: return "XEN_ELFNOTE_LOADER";
1733 case 9: return "XEN_ELFNOTE_PAE_MODE";
1734 case 10: return "XEN_ELFNOTE_FEATURES";
1735 case 11: return "XEN_ELFNOTE_BSD_SYMTAB";
1736 case 12: return "XEN_ELFNOTE_HV_START_LOW";
1737 case 13: return "XEN_ELFNOTE_L1_MFN_VALID";
1738 case 14: return "XEN_ELFNOTE_SUSPEND_CANCEL";
1739 case 15: return "XEN_ELFNOTE_INIT_P2M";
1740 case 16: return "XEN_ELFNOTE_MOD_START_PFN";
1741 case 17: return "XEN_ELFNOTE_SUPPORTED_FEATURES";
1742 default: return (note_type_unknown(nt));
1743 }
1744 }
1745
1746 static struct {
1747 const char *name;
1748 int value;
1749 } l_flag[] = {
1750 {"EXACT_MATCH", LL_EXACT_MATCH},
1751 {"IGNORE_INT_VER", LL_IGNORE_INT_VER},
1752 {"REQUIRE_MINOR", LL_REQUIRE_MINOR},
1753 {"EXPORTS", LL_EXPORTS},
1754 {"DELAY_LOAD", LL_DELAY_LOAD},
1755 {"DELTA", LL_DELTA},
1756 {NULL, 0}
1757 };
1758
1759 static struct mips_option mips_exceptions_option[] = {
1760 {OEX_PAGE0, "PAGE0"},
1761 {OEX_SMM, "SMM"},
1762 {OEX_PRECISEFP, "PRECISEFP"},
1763 {OEX_DISMISS, "DISMISS"},
1764 {0, NULL}
1765 };
1766
1767 static struct mips_option mips_pad_option[] = {
1768 {OPAD_PREFIX, "PREFIX"},
1769 {OPAD_POSTFIX, "POSTFIX"},
1770 {OPAD_SYMBOL, "SYMBOL"},
1771 {0, NULL}
1772 };
1773
1774 static struct mips_option mips_hwpatch_option[] = {
1775 {OHW_R4KEOP, "R4KEOP"},
1776 {OHW_R8KPFETCH, "R8KPFETCH"},
1777 {OHW_R5KEOP, "R5KEOP"},
1778 {OHW_R5KCVTL, "R5KCVTL"},
1779 {0, NULL}
1780 };
1781
1782 static struct mips_option mips_hwa_option[] = {
1783 {OHWA0_R4KEOP_CHECKED, "R4KEOP_CHECKED"},
1784 {OHWA0_R4KEOP_CLEAN, "R4KEOP_CLEAN"},
1785 {0, NULL}
1786 };
1787
1788 static struct mips_option mips_hwo_option[] = {
1789 {OHWO0_FIXADE, "FIXADE"},
1790 {0, NULL}
1791 };
1792
1793 static const char *
option_kind(uint8_t kind)1794 option_kind(uint8_t kind)
1795 {
1796 static char s_kind[32];
1797
1798 switch (kind) {
1799 case ODK_NULL: return "NULL";
1800 case ODK_REGINFO: return "REGINFO";
1801 case ODK_EXCEPTIONS: return "EXCEPTIONS";
1802 case ODK_PAD: return "PAD";
1803 case ODK_HWPATCH: return "HWPATCH";
1804 case ODK_FILL: return "FILL";
1805 case ODK_TAGS: return "TAGS";
1806 case ODK_HWAND: return "HWAND";
1807 case ODK_HWOR: return "HWOR";
1808 case ODK_GP_GROUP: return "GP_GROUP";
1809 case ODK_IDENT: return "IDENT";
1810 default:
1811 snprintf(s_kind, sizeof(s_kind), "<unknown: %u>", kind);
1812 return (s_kind);
1813 }
1814 }
1815
1816 static const char *
top_tag(unsigned int tag)1817 top_tag(unsigned int tag)
1818 {
1819 static char s_top_tag[32];
1820
1821 switch (tag) {
1822 case 1: return "File Attributes";
1823 case 2: return "Section Attributes";
1824 case 3: return "Symbol Attributes";
1825 default:
1826 snprintf(s_top_tag, sizeof(s_top_tag), "Unknown tag: %u", tag);
1827 return (s_top_tag);
1828 }
1829 }
1830
1831 static const char *
aeabi_cpu_arch(uint64_t arch)1832 aeabi_cpu_arch(uint64_t arch)
1833 {
1834 static char s_cpu_arch[32];
1835
1836 switch (arch) {
1837 case 0: return "Pre-V4";
1838 case 1: return "ARM v4";
1839 case 2: return "ARM v4T";
1840 case 3: return "ARM v5T";
1841 case 4: return "ARM v5TE";
1842 case 5: return "ARM v5TEJ";
1843 case 6: return "ARM v6";
1844 case 7: return "ARM v6KZ";
1845 case 8: return "ARM v6T2";
1846 case 9: return "ARM v6K";
1847 case 10: return "ARM v7";
1848 case 11: return "ARM v6-M";
1849 case 12: return "ARM v6S-M";
1850 case 13: return "ARM v7E-M";
1851 default:
1852 snprintf(s_cpu_arch, sizeof(s_cpu_arch),
1853 "Unknown (%ju)", (uintmax_t) arch);
1854 return (s_cpu_arch);
1855 }
1856 }
1857
1858 static const char *
aeabi_cpu_arch_profile(uint64_t pf)1859 aeabi_cpu_arch_profile(uint64_t pf)
1860 {
1861 static char s_arch_profile[32];
1862
1863 switch (pf) {
1864 case 0:
1865 return "Not applicable";
1866 case 0x41: /* 'A' */
1867 return "Application Profile";
1868 case 0x52: /* 'R' */
1869 return "Real-Time Profile";
1870 case 0x4D: /* 'M' */
1871 return "Microcontroller Profile";
1872 case 0x53: /* 'S' */
1873 return "Application or Real-Time Profile";
1874 default:
1875 snprintf(s_arch_profile, sizeof(s_arch_profile),
1876 "Unknown (%ju)\n", (uintmax_t) pf);
1877 return (s_arch_profile);
1878 }
1879 }
1880
1881 static const char *
aeabi_arm_isa(uint64_t ai)1882 aeabi_arm_isa(uint64_t ai)
1883 {
1884 static char s_ai[32];
1885
1886 switch (ai) {
1887 case 0: return "No";
1888 case 1: return "Yes";
1889 default:
1890 snprintf(s_ai, sizeof(s_ai), "Unknown (%ju)\n",
1891 (uintmax_t) ai);
1892 return (s_ai);
1893 }
1894 }
1895
1896 static const char *
aeabi_thumb_isa(uint64_t ti)1897 aeabi_thumb_isa(uint64_t ti)
1898 {
1899 static char s_ti[32];
1900
1901 switch (ti) {
1902 case 0: return "No";
1903 case 1: return "16-bit Thumb";
1904 case 2: return "32-bit Thumb";
1905 default:
1906 snprintf(s_ti, sizeof(s_ti), "Unknown (%ju)\n",
1907 (uintmax_t) ti);
1908 return (s_ti);
1909 }
1910 }
1911
1912 static const char *
aeabi_fp_arch(uint64_t fp)1913 aeabi_fp_arch(uint64_t fp)
1914 {
1915 static char s_fp_arch[32];
1916
1917 switch (fp) {
1918 case 0: return "No";
1919 case 1: return "VFPv1";
1920 case 2: return "VFPv2";
1921 case 3: return "VFPv3";
1922 case 4: return "VFPv3-D16";
1923 case 5: return "VFPv4";
1924 case 6: return "VFPv4-D16";
1925 default:
1926 snprintf(s_fp_arch, sizeof(s_fp_arch), "Unknown (%ju)",
1927 (uintmax_t) fp);
1928 return (s_fp_arch);
1929 }
1930 }
1931
1932 static const char *
aeabi_wmmx_arch(uint64_t wmmx)1933 aeabi_wmmx_arch(uint64_t wmmx)
1934 {
1935 static char s_wmmx[32];
1936
1937 switch (wmmx) {
1938 case 0: return "No";
1939 case 1: return "WMMXv1";
1940 case 2: return "WMMXv2";
1941 default:
1942 snprintf(s_wmmx, sizeof(s_wmmx), "Unknown (%ju)",
1943 (uintmax_t) wmmx);
1944 return (s_wmmx);
1945 }
1946 }
1947
1948 static const char *
aeabi_adv_simd_arch(uint64_t simd)1949 aeabi_adv_simd_arch(uint64_t simd)
1950 {
1951 static char s_simd[32];
1952
1953 switch (simd) {
1954 case 0: return "No";
1955 case 1: return "NEONv1";
1956 case 2: return "NEONv2";
1957 default:
1958 snprintf(s_simd, sizeof(s_simd), "Unknown (%ju)",
1959 (uintmax_t) simd);
1960 return (s_simd);
1961 }
1962 }
1963
1964 static const char *
aeabi_pcs_config(uint64_t pcs)1965 aeabi_pcs_config(uint64_t pcs)
1966 {
1967 static char s_pcs[32];
1968
1969 switch (pcs) {
1970 case 0: return "None";
1971 case 1: return "Bare platform";
1972 case 2: return "Linux";
1973 case 3: return "Linux DSO";
1974 case 4: return "Palm OS 2004";
1975 case 5: return "Palm OS (future)";
1976 case 6: return "Symbian OS 2004";
1977 case 7: return "Symbian OS (future)";
1978 default:
1979 snprintf(s_pcs, sizeof(s_pcs), "Unknown (%ju)",
1980 (uintmax_t) pcs);
1981 return (s_pcs);
1982 }
1983 }
1984
1985 static const char *
aeabi_pcs_r9(uint64_t r9)1986 aeabi_pcs_r9(uint64_t r9)
1987 {
1988 static char s_r9[32];
1989
1990 switch (r9) {
1991 case 0: return "V6";
1992 case 1: return "SB";
1993 case 2: return "TLS pointer";
1994 case 3: return "Unused";
1995 default:
1996 snprintf(s_r9, sizeof(s_r9), "Unknown (%ju)", (uintmax_t) r9);
1997 return (s_r9);
1998 }
1999 }
2000
2001 static const char *
aeabi_pcs_rw(uint64_t rw)2002 aeabi_pcs_rw(uint64_t rw)
2003 {
2004 static char s_rw[32];
2005
2006 switch (rw) {
2007 case 0: return "Absolute";
2008 case 1: return "PC-relative";
2009 case 2: return "SB-relative";
2010 case 3: return "None";
2011 default:
2012 snprintf(s_rw, sizeof(s_rw), "Unknown (%ju)", (uintmax_t) rw);
2013 return (s_rw);
2014 }
2015 }
2016
2017 static const char *
aeabi_pcs_ro(uint64_t ro)2018 aeabi_pcs_ro(uint64_t ro)
2019 {
2020 static char s_ro[32];
2021
2022 switch (ro) {
2023 case 0: return "Absolute";
2024 case 1: return "PC-relative";
2025 case 2: return "None";
2026 default:
2027 snprintf(s_ro, sizeof(s_ro), "Unknown (%ju)", (uintmax_t) ro);
2028 return (s_ro);
2029 }
2030 }
2031
2032 static const char *
aeabi_pcs_got(uint64_t got)2033 aeabi_pcs_got(uint64_t got)
2034 {
2035 static char s_got[32];
2036
2037 switch (got) {
2038 case 0: return "None";
2039 case 1: return "direct";
2040 case 2: return "indirect via GOT";
2041 default:
2042 snprintf(s_got, sizeof(s_got), "Unknown (%ju)",
2043 (uintmax_t) got);
2044 return (s_got);
2045 }
2046 }
2047
2048 static const char *
aeabi_pcs_wchar_t(uint64_t wt)2049 aeabi_pcs_wchar_t(uint64_t wt)
2050 {
2051 static char s_wt[32];
2052
2053 switch (wt) {
2054 case 0: return "None";
2055 case 2: return "wchar_t size 2";
2056 case 4: return "wchar_t size 4";
2057 default:
2058 snprintf(s_wt, sizeof(s_wt), "Unknown (%ju)", (uintmax_t) wt);
2059 return (s_wt);
2060 }
2061 }
2062
2063 static const char *
aeabi_enum_size(uint64_t es)2064 aeabi_enum_size(uint64_t es)
2065 {
2066 static char s_es[32];
2067
2068 switch (es) {
2069 case 0: return "None";
2070 case 1: return "smallest";
2071 case 2: return "32-bit";
2072 case 3: return "visible 32-bit";
2073 default:
2074 snprintf(s_es, sizeof(s_es), "Unknown (%ju)", (uintmax_t) es);
2075 return (s_es);
2076 }
2077 }
2078
2079 static const char *
aeabi_align_needed(uint64_t an)2080 aeabi_align_needed(uint64_t an)
2081 {
2082 static char s_align_n[64];
2083
2084 switch (an) {
2085 case 0: return "No";
2086 case 1: return "8-byte align";
2087 case 2: return "4-byte align";
2088 case 3: return "Reserved";
2089 default:
2090 if (an >= 4 && an <= 12)
2091 snprintf(s_align_n, sizeof(s_align_n), "8-byte align"
2092 " and up to 2^%ju-byte extended align",
2093 (uintmax_t) an);
2094 else
2095 snprintf(s_align_n, sizeof(s_align_n), "Unknown (%ju)",
2096 (uintmax_t) an);
2097 return (s_align_n);
2098 }
2099 }
2100
2101 static const char *
aeabi_align_preserved(uint64_t ap)2102 aeabi_align_preserved(uint64_t ap)
2103 {
2104 static char s_align_p[128];
2105
2106 switch (ap) {
2107 case 0: return "No";
2108 case 1: return "8-byte align";
2109 case 2: return "8-byte align and SP % 8 == 0";
2110 case 3: return "Reserved";
2111 default:
2112 if (ap >= 4 && ap <= 12)
2113 snprintf(s_align_p, sizeof(s_align_p), "8-byte align"
2114 " and SP %% 8 == 0 and up to 2^%ju-byte extended"
2115 " align", (uintmax_t) ap);
2116 else
2117 snprintf(s_align_p, sizeof(s_align_p), "Unknown (%ju)",
2118 (uintmax_t) ap);
2119 return (s_align_p);
2120 }
2121 }
2122
2123 static const char *
aeabi_fp_rounding(uint64_t fr)2124 aeabi_fp_rounding(uint64_t fr)
2125 {
2126 static char s_fp_r[32];
2127
2128 switch (fr) {
2129 case 0: return "Unused";
2130 case 1: return "Needed";
2131 default:
2132 snprintf(s_fp_r, sizeof(s_fp_r), "Unknown (%ju)",
2133 (uintmax_t) fr);
2134 return (s_fp_r);
2135 }
2136 }
2137
2138 static const char *
aeabi_fp_denormal(uint64_t fd)2139 aeabi_fp_denormal(uint64_t fd)
2140 {
2141 static char s_fp_d[32];
2142
2143 switch (fd) {
2144 case 0: return "Unused";
2145 case 1: return "Needed";
2146 case 2: return "Sign Only";
2147 default:
2148 snprintf(s_fp_d, sizeof(s_fp_d), "Unknown (%ju)",
2149 (uintmax_t) fd);
2150 return (s_fp_d);
2151 }
2152 }
2153
2154 static const char *
aeabi_fp_exceptions(uint64_t fe)2155 aeabi_fp_exceptions(uint64_t fe)
2156 {
2157 static char s_fp_e[32];
2158
2159 switch (fe) {
2160 case 0: return "Unused";
2161 case 1: return "Needed";
2162 default:
2163 snprintf(s_fp_e, sizeof(s_fp_e), "Unknown (%ju)",
2164 (uintmax_t) fe);
2165 return (s_fp_e);
2166 }
2167 }
2168
2169 static const char *
aeabi_fp_user_exceptions(uint64_t fu)2170 aeabi_fp_user_exceptions(uint64_t fu)
2171 {
2172 static char s_fp_u[32];
2173
2174 switch (fu) {
2175 case 0: return "Unused";
2176 case 1: return "Needed";
2177 default:
2178 snprintf(s_fp_u, sizeof(s_fp_u), "Unknown (%ju)",
2179 (uintmax_t) fu);
2180 return (s_fp_u);
2181 }
2182 }
2183
2184 static const char *
aeabi_fp_number_model(uint64_t fn)2185 aeabi_fp_number_model(uint64_t fn)
2186 {
2187 static char s_fp_n[32];
2188
2189 switch (fn) {
2190 case 0: return "Unused";
2191 case 1: return "IEEE 754 normal";
2192 case 2: return "RTABI";
2193 case 3: return "IEEE 754";
2194 default:
2195 snprintf(s_fp_n, sizeof(s_fp_n), "Unknown (%ju)",
2196 (uintmax_t) fn);
2197 return (s_fp_n);
2198 }
2199 }
2200
2201 static const char *
aeabi_fp_16bit_format(uint64_t fp16)2202 aeabi_fp_16bit_format(uint64_t fp16)
2203 {
2204 static char s_fp_16[64];
2205
2206 switch (fp16) {
2207 case 0: return "None";
2208 case 1: return "IEEE 754";
2209 case 2: return "VFPv3/Advanced SIMD (alternative format)";
2210 default:
2211 snprintf(s_fp_16, sizeof(s_fp_16), "Unknown (%ju)",
2212 (uintmax_t) fp16);
2213 return (s_fp_16);
2214 }
2215 }
2216
2217 static const char *
aeabi_mpext(uint64_t mp)2218 aeabi_mpext(uint64_t mp)
2219 {
2220 static char s_mp[32];
2221
2222 switch (mp) {
2223 case 0: return "Not allowed";
2224 case 1: return "Allowed";
2225 default:
2226 snprintf(s_mp, sizeof(s_mp), "Unknown (%ju)",
2227 (uintmax_t) mp);
2228 return (s_mp);
2229 }
2230 }
2231
2232 static const char *
aeabi_div(uint64_t du)2233 aeabi_div(uint64_t du)
2234 {
2235 static char s_du[32];
2236
2237 switch (du) {
2238 case 0: return "Yes (V7-R/V7-M)";
2239 case 1: return "No";
2240 case 2: return "Yes (V7-A)";
2241 default:
2242 snprintf(s_du, sizeof(s_du), "Unknown (%ju)",
2243 (uintmax_t) du);
2244 return (s_du);
2245 }
2246 }
2247
2248 static const char *
aeabi_t2ee(uint64_t t2ee)2249 aeabi_t2ee(uint64_t t2ee)
2250 {
2251 static char s_t2ee[32];
2252
2253 switch (t2ee) {
2254 case 0: return "Not allowed";
2255 case 1: return "Allowed";
2256 default:
2257 snprintf(s_t2ee, sizeof(s_t2ee), "Unknown(%ju)",
2258 (uintmax_t) t2ee);
2259 return (s_t2ee);
2260 }
2261
2262 }
2263
2264 static const char *
aeabi_hardfp(uint64_t hfp)2265 aeabi_hardfp(uint64_t hfp)
2266 {
2267 static char s_hfp[32];
2268
2269 switch (hfp) {
2270 case 0: return "Tag_FP_arch";
2271 case 1: return "only SP";
2272 case 2: return "only DP";
2273 case 3: return "both SP and DP";
2274 default:
2275 snprintf(s_hfp, sizeof(s_hfp), "Unknown (%ju)",
2276 (uintmax_t) hfp);
2277 return (s_hfp);
2278 }
2279 }
2280
2281 static const char *
aeabi_vfp_args(uint64_t va)2282 aeabi_vfp_args(uint64_t va)
2283 {
2284 static char s_va[32];
2285
2286 switch (va) {
2287 case 0: return "AAPCS (base variant)";
2288 case 1: return "AAPCS (VFP variant)";
2289 case 2: return "toolchain-specific";
2290 default:
2291 snprintf(s_va, sizeof(s_va), "Unknown (%ju)", (uintmax_t) va);
2292 return (s_va);
2293 }
2294 }
2295
2296 static const char *
aeabi_wmmx_args(uint64_t wa)2297 aeabi_wmmx_args(uint64_t wa)
2298 {
2299 static char s_wa[32];
2300
2301 switch (wa) {
2302 case 0: return "AAPCS (base variant)";
2303 case 1: return "Intel WMMX";
2304 case 2: return "toolchain-specific";
2305 default:
2306 snprintf(s_wa, sizeof(s_wa), "Unknown(%ju)", (uintmax_t) wa);
2307 return (s_wa);
2308 }
2309 }
2310
2311 static const char *
aeabi_unaligned_access(uint64_t ua)2312 aeabi_unaligned_access(uint64_t ua)
2313 {
2314 static char s_ua[32];
2315
2316 switch (ua) {
2317 case 0: return "Not allowed";
2318 case 1: return "Allowed";
2319 default:
2320 snprintf(s_ua, sizeof(s_ua), "Unknown(%ju)", (uintmax_t) ua);
2321 return (s_ua);
2322 }
2323 }
2324
2325 static const char *
aeabi_fp_hpext(uint64_t fh)2326 aeabi_fp_hpext(uint64_t fh)
2327 {
2328 static char s_fh[32];
2329
2330 switch (fh) {
2331 case 0: return "Not allowed";
2332 case 1: return "Allowed";
2333 default:
2334 snprintf(s_fh, sizeof(s_fh), "Unknown(%ju)", (uintmax_t) fh);
2335 return (s_fh);
2336 }
2337 }
2338
2339 static const char *
aeabi_optm_goal(uint64_t og)2340 aeabi_optm_goal(uint64_t og)
2341 {
2342 static char s_og[32];
2343
2344 switch (og) {
2345 case 0: return "None";
2346 case 1: return "Speed";
2347 case 2: return "Speed aggressive";
2348 case 3: return "Space";
2349 case 4: return "Space aggressive";
2350 case 5: return "Debugging";
2351 case 6: return "Best Debugging";
2352 default:
2353 snprintf(s_og, sizeof(s_og), "Unknown(%ju)", (uintmax_t) og);
2354 return (s_og);
2355 }
2356 }
2357
2358 static const char *
aeabi_fp_optm_goal(uint64_t fog)2359 aeabi_fp_optm_goal(uint64_t fog)
2360 {
2361 static char s_fog[32];
2362
2363 switch (fog) {
2364 case 0: return "None";
2365 case 1: return "Speed";
2366 case 2: return "Speed aggressive";
2367 case 3: return "Space";
2368 case 4: return "Space aggressive";
2369 case 5: return "Accurary";
2370 case 6: return "Best Accurary";
2371 default:
2372 snprintf(s_fog, sizeof(s_fog), "Unknown(%ju)",
2373 (uintmax_t) fog);
2374 return (s_fog);
2375 }
2376 }
2377
2378 static const char *
aeabi_virtual(uint64_t vt)2379 aeabi_virtual(uint64_t vt)
2380 {
2381 static char s_virtual[64];
2382
2383 switch (vt) {
2384 case 0: return "No";
2385 case 1: return "TrustZone";
2386 case 2: return "Virtualization extension";
2387 case 3: return "TrustZone and virtualization extension";
2388 default:
2389 snprintf(s_virtual, sizeof(s_virtual), "Unknown(%ju)",
2390 (uintmax_t) vt);
2391 return (s_virtual);
2392 }
2393 }
2394
2395 static struct {
2396 uint64_t tag;
2397 const char *s_tag;
2398 const char *(*get_desc)(uint64_t val);
2399 } aeabi_tags[] = {
2400 {4, "Tag_CPU_raw_name", NULL},
2401 {5, "Tag_CPU_name", NULL},
2402 {6, "Tag_CPU_arch", aeabi_cpu_arch},
2403 {7, "Tag_CPU_arch_profile", aeabi_cpu_arch_profile},
2404 {8, "Tag_ARM_ISA_use", aeabi_arm_isa},
2405 {9, "Tag_THUMB_ISA_use", aeabi_thumb_isa},
2406 {10, "Tag_FP_arch", aeabi_fp_arch},
2407 {11, "Tag_WMMX_arch", aeabi_wmmx_arch},
2408 {12, "Tag_Advanced_SIMD_arch", aeabi_adv_simd_arch},
2409 {13, "Tag_PCS_config", aeabi_pcs_config},
2410 {14, "Tag_ABI_PCS_R9_use", aeabi_pcs_r9},
2411 {15, "Tag_ABI_PCS_RW_data", aeabi_pcs_rw},
2412 {16, "Tag_ABI_PCS_RO_data", aeabi_pcs_ro},
2413 {17, "Tag_ABI_PCS_GOT_use", aeabi_pcs_got},
2414 {18, "Tag_ABI_PCS_wchar_t", aeabi_pcs_wchar_t},
2415 {19, "Tag_ABI_FP_rounding", aeabi_fp_rounding},
2416 {20, "Tag_ABI_FP_denormal", aeabi_fp_denormal},
2417 {21, "Tag_ABI_FP_exceptions", aeabi_fp_exceptions},
2418 {22, "Tag_ABI_FP_user_exceptions", aeabi_fp_user_exceptions},
2419 {23, "Tag_ABI_FP_number_model", aeabi_fp_number_model},
2420 {24, "Tag_ABI_align_needed", aeabi_align_needed},
2421 {25, "Tag_ABI_align_preserved", aeabi_align_preserved},
2422 {26, "Tag_ABI_enum_size", aeabi_enum_size},
2423 {27, "Tag_ABI_HardFP_use", aeabi_hardfp},
2424 {28, "Tag_ABI_VFP_args", aeabi_vfp_args},
2425 {29, "Tag_ABI_WMMX_args", aeabi_wmmx_args},
2426 {30, "Tag_ABI_optimization_goals", aeabi_optm_goal},
2427 {31, "Tag_ABI_FP_optimization_goals", aeabi_fp_optm_goal},
2428 {32, "Tag_compatibility", NULL},
2429 {34, "Tag_CPU_unaligned_access", aeabi_unaligned_access},
2430 {36, "Tag_FP_HP_extension", aeabi_fp_hpext},
2431 {38, "Tag_ABI_FP_16bit_format", aeabi_fp_16bit_format},
2432 {42, "Tag_MPextension_use", aeabi_mpext},
2433 {44, "Tag_DIV_use", aeabi_div},
2434 {64, "Tag_nodefaults", NULL},
2435 {65, "Tag_also_compatible_with", NULL},
2436 {66, "Tag_T2EE_use", aeabi_t2ee},
2437 {67, "Tag_conformance", NULL},
2438 {68, "Tag_Virtualization_use", aeabi_virtual},
2439 {70, "Tag_MPextension_use", aeabi_mpext},
2440 };
2441
2442 static const char *
mips_abi_fp(uint64_t fp)2443 mips_abi_fp(uint64_t fp)
2444 {
2445 static char s_mips_abi_fp[64];
2446
2447 switch (fp) {
2448 case 0: return "N/A";
2449 case 1: return "Hard float (double precision)";
2450 case 2: return "Hard float (single precision)";
2451 case 3: return "Soft float";
2452 case 4: return "64-bit float (-mips32r2 -mfp64)";
2453 default:
2454 snprintf(s_mips_abi_fp, sizeof(s_mips_abi_fp), "Unknown(%ju)",
2455 (uintmax_t) fp);
2456 return (s_mips_abi_fp);
2457 }
2458 }
2459
2460 static const char *
ppc_abi_fp(uint64_t fp)2461 ppc_abi_fp(uint64_t fp)
2462 {
2463 static char s_ppc_abi_fp[64];
2464
2465 switch (fp) {
2466 case 0: return "N/A";
2467 case 1: return "Hard float (double precision)";
2468 case 2: return "Soft float";
2469 case 3: return "Hard float (single precision)";
2470 default:
2471 snprintf(s_ppc_abi_fp, sizeof(s_ppc_abi_fp), "Unknown(%ju)",
2472 (uintmax_t) fp);
2473 return (s_ppc_abi_fp);
2474 }
2475 }
2476
2477 static const char *
ppc_abi_vector(uint64_t vec)2478 ppc_abi_vector(uint64_t vec)
2479 {
2480 static char s_vec[64];
2481
2482 switch (vec) {
2483 case 0: return "N/A";
2484 case 1: return "Generic purpose registers";
2485 case 2: return "AltiVec registers";
2486 case 3: return "SPE registers";
2487 default:
2488 snprintf(s_vec, sizeof(s_vec), "Unknown(%ju)", (uintmax_t) vec);
2489 return (s_vec);
2490 }
2491 }
2492
2493 static const char *
dwarf_reg(unsigned int mach,unsigned int reg)2494 dwarf_reg(unsigned int mach, unsigned int reg)
2495 {
2496
2497 switch (mach) {
2498 case EM_386:
2499 case EM_IAMCU:
2500 switch (reg) {
2501 case 0: return "eax";
2502 case 1: return "ecx";
2503 case 2: return "edx";
2504 case 3: return "ebx";
2505 case 4: return "esp";
2506 case 5: return "ebp";
2507 case 6: return "esi";
2508 case 7: return "edi";
2509 case 8: return "eip";
2510 case 9: return "eflags";
2511 case 11: return "st0";
2512 case 12: return "st1";
2513 case 13: return "st2";
2514 case 14: return "st3";
2515 case 15: return "st4";
2516 case 16: return "st5";
2517 case 17: return "st6";
2518 case 18: return "st7";
2519 case 21: return "xmm0";
2520 case 22: return "xmm1";
2521 case 23: return "xmm2";
2522 case 24: return "xmm3";
2523 case 25: return "xmm4";
2524 case 26: return "xmm5";
2525 case 27: return "xmm6";
2526 case 28: return "xmm7";
2527 case 29: return "mm0";
2528 case 30: return "mm1";
2529 case 31: return "mm2";
2530 case 32: return "mm3";
2531 case 33: return "mm4";
2532 case 34: return "mm5";
2533 case 35: return "mm6";
2534 case 36: return "mm7";
2535 case 37: return "fcw";
2536 case 38: return "fsw";
2537 case 39: return "mxcsr";
2538 case 40: return "es";
2539 case 41: return "cs";
2540 case 42: return "ss";
2541 case 43: return "ds";
2542 case 44: return "fs";
2543 case 45: return "gs";
2544 case 48: return "tr";
2545 case 49: return "ldtr";
2546 default: return (NULL);
2547 }
2548 case EM_X86_64:
2549 switch (reg) {
2550 case 0: return "rax";
2551 case 1: return "rdx";
2552 case 2: return "rcx";
2553 case 3: return "rbx";
2554 case 4: return "rsi";
2555 case 5: return "rdi";
2556 case 6: return "rbp";
2557 case 7: return "rsp";
2558 case 16: return "rip";
2559 case 17: return "xmm0";
2560 case 18: return "xmm1";
2561 case 19: return "xmm2";
2562 case 20: return "xmm3";
2563 case 21: return "xmm4";
2564 case 22: return "xmm5";
2565 case 23: return "xmm6";
2566 case 24: return "xmm7";
2567 case 25: return "xmm8";
2568 case 26: return "xmm9";
2569 case 27: return "xmm10";
2570 case 28: return "xmm11";
2571 case 29: return "xmm12";
2572 case 30: return "xmm13";
2573 case 31: return "xmm14";
2574 case 32: return "xmm15";
2575 case 33: return "st0";
2576 case 34: return "st1";
2577 case 35: return "st2";
2578 case 36: return "st3";
2579 case 37: return "st4";
2580 case 38: return "st5";
2581 case 39: return "st6";
2582 case 40: return "st7";
2583 case 41: return "mm0";
2584 case 42: return "mm1";
2585 case 43: return "mm2";
2586 case 44: return "mm3";
2587 case 45: return "mm4";
2588 case 46: return "mm5";
2589 case 47: return "mm6";
2590 case 48: return "mm7";
2591 case 49: return "rflags";
2592 case 50: return "es";
2593 case 51: return "cs";
2594 case 52: return "ss";
2595 case 53: return "ds";
2596 case 54: return "fs";
2597 case 55: return "gs";
2598 case 58: return "fs.base";
2599 case 59: return "gs.base";
2600 case 62: return "tr";
2601 case 63: return "ldtr";
2602 case 64: return "mxcsr";
2603 case 65: return "fcw";
2604 case 66: return "fsw";
2605 default: return (NULL);
2606 }
2607 default:
2608 return (NULL);
2609 }
2610 }
2611
2612 static void
dump_ehdr(struct readelf * re)2613 dump_ehdr(struct readelf *re)
2614 {
2615 size_t shnum, shstrndx;
2616 int i;
2617
2618 printf("ELF Header:\n");
2619
2620 /* e_ident[]. */
2621 printf(" Magic: ");
2622 for (i = 0; i < EI_NIDENT; i++)
2623 printf("%.2x ", re->ehdr.e_ident[i]);
2624 putchar('\n');
2625
2626 /* EI_CLASS. */
2627 printf("%-37s%s\n", " Class:", elf_class(re->ehdr.e_ident[EI_CLASS]));
2628
2629 /* EI_DATA. */
2630 printf("%-37s%s\n", " Data:", elf_endian(re->ehdr.e_ident[EI_DATA]));
2631
2632 /* EI_VERSION. */
2633 printf("%-37s%d %s\n", " Version:", re->ehdr.e_ident[EI_VERSION],
2634 elf_ver(re->ehdr.e_ident[EI_VERSION]));
2635
2636 /* EI_OSABI. */
2637 printf("%-37s%s\n", " OS/ABI:", elf_osabi(re->ehdr.e_ident[EI_OSABI]));
2638
2639 /* EI_ABIVERSION. */
2640 printf("%-37s%d\n", " ABI Version:", re->ehdr.e_ident[EI_ABIVERSION]);
2641
2642 /* e_type. */
2643 printf("%-37s%s\n", " Type:", elf_type(re->ehdr.e_type));
2644
2645 /* e_machine. */
2646 printf("%-37s%s\n", " Machine:", elf_machine(re->ehdr.e_machine));
2647
2648 /* e_version. */
2649 printf("%-37s%#x\n", " Version:", re->ehdr.e_version);
2650
2651 /* e_entry. */
2652 printf("%-37s%#jx\n", " Entry point address:",
2653 (uintmax_t)re->ehdr.e_entry);
2654
2655 /* e_phoff. */
2656 printf("%-37s%ju (bytes into file)\n", " Start of program headers:",
2657 (uintmax_t)re->ehdr.e_phoff);
2658
2659 /* e_shoff. */
2660 printf("%-37s%ju (bytes into file)\n", " Start of section headers:",
2661 (uintmax_t)re->ehdr.e_shoff);
2662
2663 /* e_flags. */
2664 printf("%-37s%#x", " Flags:", re->ehdr.e_flags);
2665 dump_eflags(re, re->ehdr.e_flags);
2666 putchar('\n');
2667
2668 /* e_ehsize. */
2669 printf("%-37s%u (bytes)\n", " Size of this header:",
2670 re->ehdr.e_ehsize);
2671
2672 /* e_phentsize. */
2673 printf("%-37s%u (bytes)\n", " Size of program headers:",
2674 re->ehdr.e_phentsize);
2675
2676 /* e_phnum. */
2677 printf("%-37s%u\n", " Number of program headers:", re->ehdr.e_phnum);
2678
2679 /* e_shentsize. */
2680 printf("%-37s%u (bytes)\n", " Size of section headers:",
2681 re->ehdr.e_shentsize);
2682
2683 /* e_shnum. */
2684 printf("%-37s%u", " Number of section headers:", re->ehdr.e_shnum);
2685 if (re->ehdr.e_shnum == SHN_UNDEF) {
2686 /* Extended section numbering is in use. */
2687 if (elf_getshnum(re->elf, &shnum))
2688 printf(" (%ju)", (uintmax_t)shnum);
2689 }
2690 putchar('\n');
2691
2692 /* e_shstrndx. */
2693 printf("%-37s%u", " Section header string table index:",
2694 re->ehdr.e_shstrndx);
2695 if (re->ehdr.e_shstrndx == SHN_XINDEX) {
2696 /* Extended section numbering is in use. */
2697 if (elf_getshstrndx(re->elf, &shstrndx))
2698 printf(" (%ju)", (uintmax_t)shstrndx);
2699 }
2700 putchar('\n');
2701 }
2702
2703 static void
dump_eflags(struct readelf * re,uint64_t e_flags)2704 dump_eflags(struct readelf *re, uint64_t e_flags)
2705 {
2706 struct eflags_desc *edesc;
2707 int arm_eabi;
2708
2709 edesc = NULL;
2710 switch (re->ehdr.e_machine) {
2711 case EM_ARM:
2712 arm_eabi = (e_flags & EF_ARM_EABIMASK) >> 24;
2713 if (arm_eabi == 0)
2714 printf(", GNU EABI");
2715 else if (arm_eabi <= 5)
2716 printf(", Version%d EABI", arm_eabi);
2717 edesc = arm_eflags_desc;
2718 break;
2719 case EM_MIPS:
2720 case EM_MIPS_RS3_LE:
2721 switch ((e_flags & EF_MIPS_ARCH) >> 28) {
2722 case 0: printf(", mips1"); break;
2723 case 1: printf(", mips2"); break;
2724 case 2: printf(", mips3"); break;
2725 case 3: printf(", mips4"); break;
2726 case 4: printf(", mips5"); break;
2727 case 5: printf(", mips32"); break;
2728 case 6: printf(", mips64"); break;
2729 case 7: printf(", mips32r2"); break;
2730 case 8: printf(", mips64r2"); break;
2731 default: break;
2732 }
2733 switch ((e_flags & 0x00FF0000) >> 16) {
2734 case 0x81: printf(", 3900"); break;
2735 case 0x82: printf(", 4010"); break;
2736 case 0x83: printf(", 4100"); break;
2737 case 0x85: printf(", 4650"); break;
2738 case 0x87: printf(", 4120"); break;
2739 case 0x88: printf(", 4111"); break;
2740 case 0x8a: printf(", sb1"); break;
2741 case 0x8b: printf(", octeon"); break;
2742 case 0x8c: printf(", xlr"); break;
2743 case 0x91: printf(", 5400"); break;
2744 case 0x98: printf(", 5500"); break;
2745 case 0x99: printf(", 9000"); break;
2746 case 0xa0: printf(", loongson-2e"); break;
2747 case 0xa1: printf(", loongson-2f"); break;
2748 default: break;
2749 }
2750 switch ((e_flags & 0x0000F000) >> 12) {
2751 case 1: printf(", o32"); break;
2752 case 2: printf(", o64"); break;
2753 case 3: printf(", eabi32"); break;
2754 case 4: printf(", eabi64"); break;
2755 default: break;
2756 }
2757 edesc = mips_eflags_desc;
2758 break;
2759 case EM_PPC:
2760 case EM_PPC64:
2761 edesc = powerpc_eflags_desc;
2762 break;
2763 case EM_SPARC:
2764 case EM_SPARC32PLUS:
2765 case EM_SPARCV9:
2766 switch ((e_flags & EF_SPARCV9_MM)) {
2767 case EF_SPARCV9_TSO: printf(", tso"); break;
2768 case EF_SPARCV9_PSO: printf(", pso"); break;
2769 case EF_SPARCV9_MM: printf(", rmo"); break;
2770 default: break;
2771 }
2772 edesc = sparc_eflags_desc;
2773 break;
2774 default:
2775 break;
2776 }
2777
2778 if (edesc != NULL) {
2779 while (edesc->desc != NULL) {
2780 if (e_flags & edesc->flag)
2781 printf(", %s", edesc->desc);
2782 edesc++;
2783 }
2784 }
2785 }
2786
2787 static void
dump_phdr(struct readelf * re)2788 dump_phdr(struct readelf *re)
2789 {
2790 const char *rawfile;
2791 GElf_Phdr phdr;
2792 size_t phnum, size;
2793 int i, j;
2794
2795 #define PH_HDR "Type", "Offset", "VirtAddr", "PhysAddr", "FileSiz", \
2796 "MemSiz", "Flg", "Align"
2797 #define PH_CT phdr_type(phdr.p_type), (uintmax_t)phdr.p_offset, \
2798 (uintmax_t)phdr.p_vaddr, (uintmax_t)phdr.p_paddr, \
2799 (uintmax_t)phdr.p_filesz, (uintmax_t)phdr.p_memsz, \
2800 phdr.p_flags & PF_R ? 'R' : ' ', \
2801 phdr.p_flags & PF_W ? 'W' : ' ', \
2802 phdr.p_flags & PF_X ? 'E' : ' ', \
2803 (uintmax_t)phdr.p_align
2804
2805 if (elf_getphnum(re->elf, &phnum) == 0) {
2806 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
2807 return;
2808 }
2809 if (phnum == 0) {
2810 printf("\nThere are no program headers in this file.\n");
2811 return;
2812 }
2813
2814 printf("\nElf file type is %s", elf_type(re->ehdr.e_type));
2815 printf("\nEntry point 0x%jx\n", (uintmax_t)re->ehdr.e_entry);
2816 printf("There are %ju program headers, starting at offset %ju\n",
2817 (uintmax_t)phnum, (uintmax_t)re->ehdr.e_phoff);
2818
2819 /* Dump program headers. */
2820 printf("\nProgram Headers:\n");
2821 if (re->ec == ELFCLASS32)
2822 printf(" %-15s%-9s%-11s%-11s%-8s%-8s%-4s%s\n", PH_HDR);
2823 else if (re->options & RE_WW)
2824 printf(" %-15s%-9s%-19s%-19s%-9s%-9s%-4s%s\n", PH_HDR);
2825 else
2826 printf(" %-15s%-19s%-19s%s\n %-19s%-20s"
2827 "%-7s%s\n", PH_HDR);
2828 for (i = 0; (size_t) i < phnum; i++) {
2829 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2830 warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2831 continue;
2832 }
2833 /* TODO: Add arch-specific segment type dump. */
2834 if (re->ec == ELFCLASS32)
2835 printf(" %-14.14s 0x%6.6jx 0x%8.8jx 0x%8.8jx "
2836 "0x%5.5jx 0x%5.5jx %c%c%c %#jx\n", PH_CT);
2837 else if (re->options & RE_WW)
2838 printf(" %-14.14s 0x%6.6jx 0x%16.16jx 0x%16.16jx "
2839 "0x%6.6jx 0x%6.6jx %c%c%c %#jx\n", PH_CT);
2840 else
2841 printf(" %-14.14s 0x%16.16jx 0x%16.16jx 0x%16.16jx\n"
2842 " 0x%16.16jx 0x%16.16jx %c%c%c"
2843 " %#jx\n", PH_CT);
2844 if (phdr.p_type == PT_INTERP) {
2845 if ((rawfile = elf_rawfile(re->elf, &size)) == NULL) {
2846 warnx("elf_rawfile failed: %s", elf_errmsg(-1));
2847 continue;
2848 }
2849 if (phdr.p_offset >= size) {
2850 warnx("invalid program header offset");
2851 continue;
2852 }
2853 printf(" [Requesting program interpreter: %s]\n",
2854 rawfile + phdr.p_offset);
2855 }
2856 }
2857
2858 /* Dump section to segment mapping. */
2859 if (re->shnum == 0)
2860 return;
2861 printf("\n Section to Segment mapping:\n");
2862 printf(" Segment Sections...\n");
2863 for (i = 0; (size_t)i < phnum; i++) {
2864 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
2865 warnx("gelf_getphdr failed: %s", elf_errmsg(-1));
2866 continue;
2867 }
2868 printf(" %2.2d ", i);
2869 /* skip NULL section. */
2870 for (j = 1; (size_t)j < re->shnum; j++)
2871 if (re->sl[j].addr >= phdr.p_vaddr &&
2872 re->sl[j].addr + re->sl[j].sz <=
2873 phdr.p_vaddr + phdr.p_memsz)
2874 printf("%s ", re->sl[j].name);
2875 printf("\n");
2876 }
2877 #undef PH_HDR
2878 #undef PH_CT
2879 }
2880
2881 static char *
section_flags(struct readelf * re,struct section * s)2882 section_flags(struct readelf *re, struct section *s)
2883 {
2884 #define BUF_SZ 256
2885 static char buf[BUF_SZ];
2886 int i, p, nb;
2887
2888 p = 0;
2889 nb = re->ec == ELFCLASS32 ? 8 : 16;
2890 if (re->options & RE_T) {
2891 snprintf(buf, BUF_SZ, "[%*.*jx]: ", nb, nb,
2892 (uintmax_t)s->flags);
2893 p += nb + 4;
2894 }
2895 for (i = 0; section_flag[i].ln != NULL; i++) {
2896 if ((s->flags & section_flag[i].value) == 0)
2897 continue;
2898 if (re->options & RE_T) {
2899 snprintf(&buf[p], BUF_SZ - p, "%s, ",
2900 section_flag[i].ln);
2901 p += strlen(section_flag[i].ln) + 2;
2902 } else
2903 buf[p++] = section_flag[i].sn;
2904 }
2905 if (re->options & RE_T && p > nb + 4)
2906 p -= 2;
2907 buf[p] = '\0';
2908
2909 return (buf);
2910 }
2911
2912 static void
dump_shdr(struct readelf * re)2913 dump_shdr(struct readelf *re)
2914 {
2915 struct section *s;
2916 int i;
2917
2918 #define S_HDR "[Nr] Name", "Type", "Addr", "Off", "Size", "ES", \
2919 "Flg", "Lk", "Inf", "Al"
2920 #define S_HDRL "[Nr] Name", "Type", "Address", "Offset", "Size", \
2921 "EntSize", "Flags", "Link", "Info", "Align"
2922 #define ST_HDR "[Nr] Name", "Type", "Addr", "Off", "Size", "ES", \
2923 "Lk", "Inf", "Al", "Flags"
2924 #define ST_HDRL "[Nr] Name", "Type", "Address", "Offset", "Link", \
2925 "Size", "EntSize", "Info", "Align", "Flags"
2926 #define S_CT i, s->name, section_type(re->ehdr.e_machine, s->type), \
2927 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2928 (uintmax_t)s->entsize, section_flags(re, s), \
2929 s->link, s->info, (uintmax_t)s->align
2930 #define ST_CT i, s->name, section_type(re->ehdr.e_machine, s->type), \
2931 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\
2932 (uintmax_t)s->entsize, s->link, s->info, \
2933 (uintmax_t)s->align, section_flags(re, s)
2934 #define ST_CTL i, s->name, section_type(re->ehdr.e_machine, s->type), \
2935 (uintmax_t)s->addr, (uintmax_t)s->off, s->link, \
2936 (uintmax_t)s->sz, (uintmax_t)s->entsize, s->info, \
2937 (uintmax_t)s->align, section_flags(re, s)
2938
2939 if (re->shnum == 0) {
2940 printf("\nThere are no sections in this file.\n");
2941 return;
2942 }
2943 printf("There are %ju section headers, starting at offset 0x%jx:\n",
2944 (uintmax_t)re->shnum, (uintmax_t)re->ehdr.e_shoff);
2945 printf("\nSection Headers:\n");
2946 if (re->ec == ELFCLASS32) {
2947 if (re->options & RE_T)
2948 printf(" %s\n %-16s%-9s%-7s%-7s%-5s%-3s%-4s%s\n"
2949 "%12s\n", ST_HDR);
2950 else
2951 printf(" %-23s%-16s%-9s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2952 S_HDR);
2953 } else if (re->options & RE_WW) {
2954 if (re->options & RE_T)
2955 printf(" %s\n %-16s%-17s%-7s%-7s%-5s%-3s%-4s%s\n"
2956 "%12s\n", ST_HDR);
2957 else
2958 printf(" %-23s%-16s%-17s%-7s%-7s%-3s%-4s%-3s%-4s%s\n",
2959 S_HDR);
2960 } else {
2961 if (re->options & RE_T)
2962 printf(" %s\n %-18s%-17s%-18s%s\n %-18s"
2963 "%-17s%-18s%s\n%12s\n", ST_HDRL);
2964 else
2965 printf(" %-23s%-17s%-18s%s\n %-18s%-17s%-7s%"
2966 "-6s%-6s%s\n", S_HDRL);
2967 }
2968 for (i = 0; (size_t)i < re->shnum; i++) {
2969 s = &re->sl[i];
2970 if (re->ec == ELFCLASS32) {
2971 if (re->options & RE_T)
2972 printf(" [%2d] %s\n %-15.15s %8.8jx"
2973 " %6.6jx %6.6jx %2.2jx %2u %3u %2ju\n"
2974 " %s\n", ST_CT);
2975 else
2976 printf(" [%2d] %-17.17s %-15.15s %8.8jx"
2977 " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2978 S_CT);
2979 } else if (re->options & RE_WW) {
2980 if (re->options & RE_T)
2981 printf(" [%2d] %s\n %-15.15s %16.16jx"
2982 " %6.6jx %6.6jx %2.2jx %2u %3u %2ju\n"
2983 " %s\n", ST_CT);
2984 else
2985 printf(" [%2d] %-17.17s %-15.15s %16.16jx"
2986 " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n",
2987 S_CT);
2988 } else {
2989 if (re->options & RE_T)
2990 printf(" [%2d] %s\n %-15.15s %16.16jx"
2991 " %16.16jx %u\n %16.16jx %16.16jx"
2992 " %-16u %ju\n %s\n", ST_CTL);
2993 else
2994 printf(" [%2d] %-17.17s %-15.15s %16.16jx"
2995 " %8.8jx\n %16.16jx %16.16jx "
2996 "%3s %2u %3u %ju\n", S_CT);
2997 }
2998 }
2999 if ((re->options & RE_T) == 0)
3000 printf("Key to Flags:\n W (write), A (alloc),"
3001 " X (execute), M (merge), S (strings)\n"
3002 " I (info), L (link order), G (group), x (unknown)\n"
3003 " O (extra OS processing required)"
3004 " o (OS specific), p (processor specific)\n");
3005
3006 #undef S_HDR
3007 #undef S_HDRL
3008 #undef ST_HDR
3009 #undef ST_HDRL
3010 #undef S_CT
3011 #undef ST_CT
3012 #undef ST_CTL
3013 }
3014
3015 /*
3016 * Return number of entries in the given section. We'd prefer ent_count be a
3017 * size_t *, but libelf APIs already use int for section indices.
3018 */
3019 static int
get_ent_count(struct section * s,int * ent_count)3020 get_ent_count(struct section *s, int *ent_count)
3021 {
3022 if (s->entsize == 0) {
3023 warnx("section %s has entry size 0", s->name);
3024 return (0);
3025 } else if (s->sz / s->entsize > INT_MAX) {
3026 warnx("section %s has invalid section count", s->name);
3027 return (0);
3028 }
3029 *ent_count = (int)(s->sz / s->entsize);
3030 return (1);
3031 }
3032
3033 static void
dump_dynamic(struct readelf * re)3034 dump_dynamic(struct readelf *re)
3035 {
3036 GElf_Dyn dyn;
3037 Elf_Data *d;
3038 struct section *s;
3039 int elferr, i, is_dynamic, j, jmax, nentries;
3040
3041 is_dynamic = 0;
3042
3043 for (i = 0; (size_t)i < re->shnum; i++) {
3044 s = &re->sl[i];
3045 if (s->type != SHT_DYNAMIC)
3046 continue;
3047 (void) elf_errno();
3048 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3049 elferr = elf_errno();
3050 if (elferr != 0)
3051 warnx("elf_getdata failed: %s", elf_errmsg(-1));
3052 continue;
3053 }
3054 if (d->d_size <= 0)
3055 continue;
3056
3057 is_dynamic = 1;
3058
3059 /* Determine the actual number of table entries. */
3060 nentries = 0;
3061 if (!get_ent_count(s, &jmax))
3062 continue;
3063 for (j = 0; j < jmax; j++) {
3064 if (gelf_getdyn(d, j, &dyn) != &dyn) {
3065 warnx("gelf_getdyn failed: %s",
3066 elf_errmsg(-1));
3067 continue;
3068 }
3069 nentries ++;
3070 if (dyn.d_tag == DT_NULL)
3071 break;
3072 }
3073
3074 printf("\nDynamic section at offset 0x%jx", (uintmax_t)s->off);
3075 printf(" contains %u entries:\n", nentries);
3076
3077 if (re->ec == ELFCLASS32)
3078 printf("%5s%12s%28s\n", "Tag", "Type", "Name/Value");
3079 else
3080 printf("%5s%20s%28s\n", "Tag", "Type", "Name/Value");
3081
3082 for (j = 0; j < nentries; j++) {
3083 if (gelf_getdyn(d, j, &dyn) != &dyn)
3084 continue;
3085 /* Dump dynamic entry type. */
3086 if (re->ec == ELFCLASS32)
3087 printf(" 0x%8.8jx", (uintmax_t)dyn.d_tag);
3088 else
3089 printf(" 0x%16.16jx", (uintmax_t)dyn.d_tag);
3090 printf(" %-20s", dt_type(re->ehdr.e_machine,
3091 dyn.d_tag));
3092 /* Dump dynamic entry value. */
3093 dump_dyn_val(re, &dyn, s->link);
3094 }
3095 }
3096
3097 if (!is_dynamic)
3098 printf("\nThere is no dynamic section in this file.\n");
3099 }
3100
3101 static char *
timestamp(time_t ti)3102 timestamp(time_t ti)
3103 {
3104 static char ts[32];
3105 struct tm *t;
3106
3107 t = gmtime(&ti);
3108 snprintf(ts, sizeof(ts), "%04d-%02d-%02dT%02d:%02d:%02d",
3109 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour,
3110 t->tm_min, t->tm_sec);
3111
3112 return (ts);
3113 }
3114
3115 static const char *
dyn_str(struct readelf * re,uint32_t stab,uint64_t d_val)3116 dyn_str(struct readelf *re, uint32_t stab, uint64_t d_val)
3117 {
3118 const char *name;
3119
3120 if (stab == SHN_UNDEF)
3121 name = "ERROR";
3122 else if ((name = elf_strptr(re->elf, stab, d_val)) == NULL) {
3123 (void) elf_errno(); /* clear error */
3124 name = "ERROR";
3125 }
3126
3127 return (name);
3128 }
3129
3130 static void
dump_arch_dyn_val(struct readelf * re,GElf_Dyn * dyn,uint32_t stab)3131 dump_arch_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
3132 {
3133 const char *name;
3134
3135 switch (re->ehdr.e_machine) {
3136 case EM_MIPS:
3137 case EM_MIPS_RS3_LE:
3138 switch (dyn->d_tag) {
3139 case DT_MIPS_RLD_VERSION:
3140 case DT_MIPS_LOCAL_GOTNO:
3141 case DT_MIPS_CONFLICTNO:
3142 case DT_MIPS_LIBLISTNO:
3143 case DT_MIPS_SYMTABNO:
3144 case DT_MIPS_UNREFEXTNO:
3145 case DT_MIPS_GOTSYM:
3146 case DT_MIPS_HIPAGENO:
3147 case DT_MIPS_DELTA_CLASS_NO:
3148 case DT_MIPS_DELTA_INSTANCE_NO:
3149 case DT_MIPS_DELTA_RELOC_NO:
3150 case DT_MIPS_DELTA_SYM_NO:
3151 case DT_MIPS_DELTA_CLASSSYM_NO:
3152 case DT_MIPS_LOCALPAGE_GOTIDX:
3153 case DT_MIPS_LOCAL_GOTIDX:
3154 case DT_MIPS_HIDDEN_GOTIDX:
3155 case DT_MIPS_PROTECTED_GOTIDX:
3156 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
3157 break;
3158 case DT_MIPS_ICHECKSUM:
3159 case DT_MIPS_FLAGS:
3160 case DT_MIPS_BASE_ADDRESS:
3161 case DT_MIPS_CONFLICT:
3162 case DT_MIPS_LIBLIST:
3163 case DT_MIPS_RLD_MAP:
3164 case DT_MIPS_DELTA_CLASS:
3165 case DT_MIPS_DELTA_INSTANCE:
3166 case DT_MIPS_DELTA_RELOC:
3167 case DT_MIPS_DELTA_SYM:
3168 case DT_MIPS_DELTA_CLASSSYM:
3169 case DT_MIPS_CXX_FLAGS:
3170 case DT_MIPS_PIXIE_INIT:
3171 case DT_MIPS_SYMBOL_LIB:
3172 case DT_MIPS_OPTIONS:
3173 case DT_MIPS_INTERFACE:
3174 case DT_MIPS_DYNSTR_ALIGN:
3175 case DT_MIPS_INTERFACE_SIZE:
3176 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
3177 case DT_MIPS_COMPACT_SIZE:
3178 case DT_MIPS_GP_VALUE:
3179 case DT_MIPS_AUX_DYNAMIC:
3180 case DT_MIPS_PLTGOT:
3181 case DT_MIPS_RLD_OBJ_UPDATE:
3182 case DT_MIPS_RWPLT:
3183 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
3184 break;
3185 case DT_MIPS_IVERSION:
3186 case DT_MIPS_PERF_SUFFIX:
3187 case DT_AUXILIARY:
3188 case DT_FILTER:
3189 name = dyn_str(re, stab, dyn->d_un.d_val);
3190 printf(" %s\n", name);
3191 break;
3192 case DT_MIPS_TIME_STAMP:
3193 printf(" %s\n", timestamp(dyn->d_un.d_val));
3194 break;
3195 }
3196 break;
3197 default:
3198 printf("\n");
3199 break;
3200 }
3201 }
3202
3203 static void
dump_dyn_val(struct readelf * re,GElf_Dyn * dyn,uint32_t stab)3204 dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab)
3205 {
3206 const char *name;
3207
3208 if (dyn->d_tag >= DT_LOPROC && dyn->d_tag <= DT_HIPROC) {
3209 dump_arch_dyn_val(re, dyn, stab);
3210 return;
3211 }
3212
3213 /* These entry values are index into the string table. */
3214 name = NULL;
3215 if (dyn->d_tag == DT_NEEDED || dyn->d_tag == DT_SONAME ||
3216 dyn->d_tag == DT_RPATH || dyn->d_tag == DT_RUNPATH)
3217 name = dyn_str(re, stab, dyn->d_un.d_val);
3218
3219 switch(dyn->d_tag) {
3220 case DT_NULL:
3221 case DT_PLTGOT:
3222 case DT_HASH:
3223 case DT_STRTAB:
3224 case DT_SYMTAB:
3225 case DT_RELA:
3226 case DT_INIT:
3227 case DT_SYMBOLIC:
3228 case DT_REL:
3229 case DT_DEBUG:
3230 case DT_TEXTREL:
3231 case DT_JMPREL:
3232 case DT_FINI:
3233 case DT_VERDEF:
3234 case DT_VERNEED:
3235 case DT_VERSYM:
3236 case DT_GNU_HASH:
3237 case DT_GNU_LIBLIST:
3238 case DT_GNU_CONFLICT:
3239 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val);
3240 break;
3241 case DT_PLTRELSZ:
3242 case DT_RELASZ:
3243 case DT_RELAENT:
3244 case DT_STRSZ:
3245 case DT_SYMENT:
3246 case DT_RELSZ:
3247 case DT_RELENT:
3248 case DT_INIT_ARRAYSZ:
3249 case DT_FINI_ARRAYSZ:
3250 case DT_GNU_CONFLICTSZ:
3251 case DT_GNU_LIBLISTSZ:
3252 printf(" %ju (bytes)\n", (uintmax_t) dyn->d_un.d_val);
3253 break;
3254 case DT_RELACOUNT:
3255 case DT_RELCOUNT:
3256 case DT_VERDEFNUM:
3257 case DT_VERNEEDNUM:
3258 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val);
3259 break;
3260 case DT_NEEDED:
3261 printf(" Shared library: [%s]\n", name);
3262 break;
3263 case DT_SONAME:
3264 printf(" Library soname: [%s]\n", name);
3265 break;
3266 case DT_RPATH:
3267 printf(" Library rpath: [%s]\n", name);
3268 break;
3269 case DT_RUNPATH:
3270 printf(" Library runpath: [%s]\n", name);
3271 break;
3272 case DT_PLTREL:
3273 printf(" %s\n", dt_type(re->ehdr.e_machine, dyn->d_un.d_val));
3274 break;
3275 case DT_GNU_PRELINKED:
3276 printf(" %s\n", timestamp(dyn->d_un.d_val));
3277 break;
3278 default:
3279 printf("\n");
3280 }
3281 }
3282
3283 static void
dump_rel(struct readelf * re,struct section * s,Elf_Data * d)3284 dump_rel(struct readelf *re, struct section *s, Elf_Data *d)
3285 {
3286 GElf_Rel r;
3287 const char *symname;
3288 uint64_t symval;
3289 int i, len;
3290
3291 if (s->link >= re->shnum)
3292 return;
3293
3294 #define REL_HDR "r_offset", "r_info", "r_type", "st_value", "st_name"
3295 #define REL_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \
3296 r_type(re->ehdr.e_machine, ELF32_R_TYPE(r.r_info)), \
3297 (uintmax_t)symval, symname
3298 #define REL_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \
3299 r_type(re->ehdr.e_machine, ELF64_R_TYPE(r.r_info)), \
3300 (uintmax_t)symval, symname
3301
3302 printf("\nRelocation section (%s):\n", s->name);
3303 if (re->ec == ELFCLASS32)
3304 printf("%-8s %-8s %-19s %-8s %s\n", REL_HDR);
3305 else {
3306 if (re->options & RE_WW)
3307 printf("%-16s %-16s %-24s %-16s %s\n", REL_HDR);
3308 else
3309 printf("%-12s %-12s %-19s %-16s %s\n", REL_HDR);
3310 }
3311 assert(d->d_size == s->sz);
3312 if (!get_ent_count(s, &len))
3313 return;
3314 for (i = 0; i < len; i++) {
3315 if (gelf_getrel(d, i, &r) != &r) {
3316 warnx("gelf_getrel failed: %s", elf_errmsg(-1));
3317 continue;
3318 }
3319 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
3320 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
3321 if (re->ec == ELFCLASS32) {
3322 r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
3323 ELF64_R_TYPE(r.r_info));
3324 printf("%8.8jx %8.8jx %-19.19s %8.8jx %s\n", REL_CT32);
3325 } else {
3326 if (re->options & RE_WW)
3327 printf("%16.16jx %16.16jx %-24.24s"
3328 " %16.16jx %s\n", REL_CT64);
3329 else
3330 printf("%12.12jx %12.12jx %-19.19s"
3331 " %16.16jx %s\n", REL_CT64);
3332 }
3333 }
3334
3335 #undef REL_HDR
3336 #undef REL_CT
3337 }
3338
3339 static void
dump_rela(struct readelf * re,struct section * s,Elf_Data * d)3340 dump_rela(struct readelf *re, struct section *s, Elf_Data *d)
3341 {
3342 GElf_Rela r;
3343 const char *symname;
3344 uint64_t symval;
3345 int i, len;
3346
3347 if (s->link >= re->shnum)
3348 return;
3349
3350 #define RELA_HDR "r_offset", "r_info", "r_type", "st_value", \
3351 "st_name + r_addend"
3352 #define RELA_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \
3353 r_type(re->ehdr.e_machine, ELF32_R_TYPE(r.r_info)), \
3354 (uintmax_t)symval, symname
3355 #define RELA_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \
3356 r_type(re->ehdr.e_machine, ELF64_R_TYPE(r.r_info)), \
3357 (uintmax_t)symval, symname
3358
3359 printf("\nRelocation section with addend (%s):\n", s->name);
3360 if (re->ec == ELFCLASS32)
3361 printf("%-8s %-8s %-19s %-8s %s\n", RELA_HDR);
3362 else {
3363 if (re->options & RE_WW)
3364 printf("%-16s %-16s %-24s %-16s %s\n", RELA_HDR);
3365 else
3366 printf("%-12s %-12s %-19s %-16s %s\n", RELA_HDR);
3367 }
3368 assert(d->d_size == s->sz);
3369 if (!get_ent_count(s, &len))
3370 return;
3371 for (i = 0; i < len; i++) {
3372 if (gelf_getrela(d, i, &r) != &r) {
3373 warnx("gelf_getrel failed: %s", elf_errmsg(-1));
3374 continue;
3375 }
3376 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info));
3377 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info));
3378 if (re->ec == ELFCLASS32) {
3379 r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info),
3380 ELF64_R_TYPE(r.r_info));
3381 printf("%8.8jx %8.8jx %-19.19s %8.8jx %s", RELA_CT32);
3382 printf(" + %x\n", (uint32_t) r.r_addend);
3383 } else {
3384 if (re->options & RE_WW)
3385 printf("%16.16jx %16.16jx %-24.24s"
3386 " %16.16jx %s", RELA_CT64);
3387 else
3388 printf("%12.12jx %12.12jx %-19.19s"
3389 " %16.16jx %s", RELA_CT64);
3390 printf(" + %jx\n", (uintmax_t) r.r_addend);
3391 }
3392 }
3393
3394 #undef RELA_HDR
3395 #undef RELA_CT
3396 }
3397
3398 static void
dump_reloc(struct readelf * re)3399 dump_reloc(struct readelf *re)
3400 {
3401 struct section *s;
3402 Elf_Data *d;
3403 int i, elferr;
3404
3405 for (i = 0; (size_t)i < re->shnum; i++) {
3406 s = &re->sl[i];
3407 if (s->type == SHT_REL || s->type == SHT_RELA) {
3408 (void) elf_errno();
3409 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3410 elferr = elf_errno();
3411 if (elferr != 0)
3412 warnx("elf_getdata failed: %s",
3413 elf_errmsg(elferr));
3414 continue;
3415 }
3416 if (s->type == SHT_REL)
3417 dump_rel(re, s, d);
3418 else
3419 dump_rela(re, s, d);
3420 }
3421 }
3422 }
3423
3424 static void
dump_symtab(struct readelf * re,int i)3425 dump_symtab(struct readelf *re, int i)
3426 {
3427 struct section *s;
3428 Elf_Data *d;
3429 GElf_Sym sym;
3430 const char *name;
3431 uint32_t stab;
3432 int elferr, j, len;
3433 uint16_t vs;
3434
3435 s = &re->sl[i];
3436 if (s->link >= re->shnum)
3437 return;
3438 stab = s->link;
3439 (void) elf_errno();
3440 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3441 elferr = elf_errno();
3442 if (elferr != 0)
3443 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3444 return;
3445 }
3446 if (d->d_size <= 0)
3447 return;
3448 if (!get_ent_count(s, &len))
3449 return;
3450 printf("Symbol table (%s)", s->name);
3451 printf(" contains %d entries:\n", len);
3452 printf("%7s%9s%14s%5s%8s%6s%9s%5s\n", "Num:", "Value", "Size", "Type",
3453 "Bind", "Vis", "Ndx", "Name");
3454
3455 for (j = 0; j < len; j++) {
3456 if (gelf_getsym(d, j, &sym) != &sym) {
3457 warnx("gelf_getsym failed: %s", elf_errmsg(-1));
3458 continue;
3459 }
3460 printf("%6d:", j);
3461 printf(" %16.16jx", (uintmax_t) sym.st_value);
3462 printf(" %5ju", (uintmax_t) sym.st_size);
3463 printf(" %-7s", st_type(re->ehdr.e_machine,
3464 GELF_ST_TYPE(sym.st_info)));
3465 printf(" %-6s", st_bind(GELF_ST_BIND(sym.st_info)));
3466 printf(" %-8s", st_vis(GELF_ST_VISIBILITY(sym.st_other)));
3467 printf(" %3s", st_shndx(sym.st_shndx));
3468 if ((name = elf_strptr(re->elf, stab, sym.st_name)) != NULL)
3469 printf(" %s", name);
3470 /* Append symbol version string for SHT_DYNSYM symbol table. */
3471 if (s->type == SHT_DYNSYM && re->ver != NULL &&
3472 re->vs != NULL && re->vs[j] > 1) {
3473 vs = re->vs[j] & VERSYM_VERSION;
3474 if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
3475 warnx("invalid versym version index %u", vs);
3476 break;
3477 }
3478 if (re->vs[j] & VERSYM_HIDDEN || re->ver[vs].type == 0)
3479 printf("@%s (%d)", re->ver[vs].name, vs);
3480 else
3481 printf("@@%s (%d)", re->ver[vs].name, vs);
3482 }
3483 putchar('\n');
3484 }
3485
3486 }
3487
3488 static void
dump_symtabs(struct readelf * re)3489 dump_symtabs(struct readelf *re)
3490 {
3491 GElf_Dyn dyn;
3492 Elf_Data *d;
3493 struct section *s;
3494 uint64_t dyn_off;
3495 int elferr, i, len;
3496
3497 /*
3498 * If -D is specified, only dump the symbol table specified by
3499 * the DT_SYMTAB entry in the .dynamic section.
3500 */
3501 dyn_off = 0;
3502 if (re->options & RE_DD) {
3503 s = NULL;
3504 for (i = 0; (size_t)i < re->shnum; i++)
3505 if (re->sl[i].type == SHT_DYNAMIC) {
3506 s = &re->sl[i];
3507 break;
3508 }
3509 if (s == NULL)
3510 return;
3511 (void) elf_errno();
3512 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3513 elferr = elf_errno();
3514 if (elferr != 0)
3515 warnx("elf_getdata failed: %s", elf_errmsg(-1));
3516 return;
3517 }
3518 if (d->d_size <= 0)
3519 return;
3520 if (!get_ent_count(s, &len))
3521 return;
3522
3523 for (i = 0; i < len; i++) {
3524 if (gelf_getdyn(d, i, &dyn) != &dyn) {
3525 warnx("gelf_getdyn failed: %s", elf_errmsg(-1));
3526 continue;
3527 }
3528 if (dyn.d_tag == DT_SYMTAB) {
3529 dyn_off = dyn.d_un.d_val;
3530 break;
3531 }
3532 }
3533 }
3534
3535 /* Find and dump symbol tables. */
3536 for (i = 0; (size_t)i < re->shnum; i++) {
3537 s = &re->sl[i];
3538 if (s->type == SHT_SYMTAB || s->type == SHT_DYNSYM) {
3539 if (re->options & RE_DD) {
3540 if (dyn_off == s->addr) {
3541 dump_symtab(re, i);
3542 break;
3543 }
3544 } else
3545 dump_symtab(re, i);
3546 }
3547 }
3548 }
3549
3550 static void
dump_svr4_hash(struct section * s)3551 dump_svr4_hash(struct section *s)
3552 {
3553 Elf_Data *d;
3554 uint32_t *buf;
3555 uint32_t nbucket, nchain;
3556 uint32_t *bucket, *chain;
3557 uint32_t *bl, *c, maxl, total;
3558 int elferr, i, j;
3559
3560 /* Read and parse the content of .hash section. */
3561 (void) elf_errno();
3562 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3563 elferr = elf_errno();
3564 if (elferr != 0)
3565 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3566 return;
3567 }
3568 if (d->d_size < 2 * sizeof(uint32_t)) {
3569 warnx(".hash section too small");
3570 return;
3571 }
3572 buf = d->d_buf;
3573 nbucket = buf[0];
3574 nchain = buf[1];
3575 if (nbucket <= 0 || nchain <= 0) {
3576 warnx("Malformed .hash section");
3577 return;
3578 }
3579 if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3580 warnx("Malformed .hash section");
3581 return;
3582 }
3583 bucket = &buf[2];
3584 chain = &buf[2 + nbucket];
3585
3586 maxl = 0;
3587 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3588 errx(EXIT_FAILURE, "calloc failed");
3589 for (i = 0; (uint32_t)i < nbucket; i++)
3590 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3591 if (++bl[i] > maxl)
3592 maxl = bl[i];
3593 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3594 errx(EXIT_FAILURE, "calloc failed");
3595 for (i = 0; (uint32_t)i < nbucket; i++)
3596 c[bl[i]]++;
3597 printf("\nHistogram for bucket list length (total of %u buckets):\n",
3598 nbucket);
3599 printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3600 total = 0;
3601 for (i = 0; (uint32_t)i <= maxl; i++) {
3602 total += c[i] * i;
3603 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3604 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3605 }
3606 free(c);
3607 free(bl);
3608 }
3609
3610 static void
dump_svr4_hash64(struct readelf * re,struct section * s)3611 dump_svr4_hash64(struct readelf *re, struct section *s)
3612 {
3613 Elf_Data *d, dst;
3614 uint64_t *buf;
3615 uint64_t nbucket, nchain;
3616 uint64_t *bucket, *chain;
3617 uint64_t *bl, *c, maxl, total;
3618 int elferr, i, j;
3619
3620 /*
3621 * ALPHA uses 64-bit hash entries. Since libelf assumes that
3622 * .hash section contains only 32-bit entry, an explicit
3623 * gelf_xlatetom is needed here.
3624 */
3625 (void) elf_errno();
3626 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
3627 elferr = elf_errno();
3628 if (elferr != 0)
3629 warnx("elf_rawdata failed: %s",
3630 elf_errmsg(elferr));
3631 return;
3632 }
3633 d->d_type = ELF_T_XWORD;
3634 memcpy(&dst, d, sizeof(Elf_Data));
3635 if (gelf_xlatetom(re->elf, &dst, d,
3636 re->ehdr.e_ident[EI_DATA]) != &dst) {
3637 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1));
3638 return;
3639 }
3640 if (dst.d_size < 2 * sizeof(uint64_t)) {
3641 warnx(".hash section too small");
3642 return;
3643 }
3644 buf = dst.d_buf;
3645 nbucket = buf[0];
3646 nchain = buf[1];
3647 if (nbucket <= 0 || nchain <= 0) {
3648 warnx("Malformed .hash section");
3649 return;
3650 }
3651 if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) {
3652 warnx("Malformed .hash section");
3653 return;
3654 }
3655 bucket = &buf[2];
3656 chain = &buf[2 + nbucket];
3657
3658 maxl = 0;
3659 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3660 errx(EXIT_FAILURE, "calloc failed");
3661 for (i = 0; (uint32_t)i < nbucket; i++)
3662 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j])
3663 if (++bl[i] > maxl)
3664 maxl = bl[i];
3665 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3666 errx(EXIT_FAILURE, "calloc failed");
3667 for (i = 0; (uint64_t)i < nbucket; i++)
3668 c[bl[i]]++;
3669 printf("Histogram for bucket list length (total of %ju buckets):\n",
3670 (uintmax_t)nbucket);
3671 printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3672 total = 0;
3673 for (i = 0; (uint64_t)i <= maxl; i++) {
3674 total += c[i] * i;
3675 printf("%7u\t%-10ju\t(%5.1f%%)\t%5.1f%%\n", i, (uintmax_t)c[i],
3676 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3677 }
3678 free(c);
3679 free(bl);
3680 }
3681
3682 static void
dump_gnu_hash(struct readelf * re,struct section * s)3683 dump_gnu_hash(struct readelf *re, struct section *s)
3684 {
3685 struct section *ds;
3686 Elf_Data *d;
3687 uint32_t *buf;
3688 uint32_t *bucket, *chain;
3689 uint32_t nbucket, nchain, symndx, maskwords;
3690 uint32_t *bl, *c, maxl, total;
3691 int elferr, dynsymcount, i, j;
3692
3693 (void) elf_errno();
3694 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3695 elferr = elf_errno();
3696 if (elferr != 0)
3697 warnx("elf_getdata failed: %s",
3698 elf_errmsg(elferr));
3699 return;
3700 }
3701 if (d->d_size < 4 * sizeof(uint32_t)) {
3702 warnx(".gnu.hash section too small");
3703 return;
3704 }
3705 buf = d->d_buf;
3706 nbucket = buf[0];
3707 symndx = buf[1];
3708 maskwords = buf[2];
3709 buf += 4;
3710 if (s->link >= re->shnum)
3711 return;
3712 ds = &re->sl[s->link];
3713 if (!get_ent_count(ds, &dynsymcount))
3714 return;
3715 nchain = dynsymcount - symndx;
3716 if (d->d_size != 4 * sizeof(uint32_t) + maskwords *
3717 (re->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) +
3718 (nbucket + nchain) * sizeof(uint32_t)) {
3719 warnx("Malformed .gnu.hash section");
3720 return;
3721 }
3722 bucket = buf + (re->ec == ELFCLASS32 ? maskwords : maskwords * 2);
3723 chain = bucket + nbucket;
3724
3725 maxl = 0;
3726 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL)
3727 errx(EXIT_FAILURE, "calloc failed");
3728 for (i = 0; (uint32_t)i < nbucket; i++)
3729 for (j = bucket[i]; j > 0 && (uint32_t)j - symndx < nchain;
3730 j++) {
3731 if (++bl[i] > maxl)
3732 maxl = bl[i];
3733 if (chain[j - symndx] & 1)
3734 break;
3735 }
3736 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL)
3737 errx(EXIT_FAILURE, "calloc failed");
3738 for (i = 0; (uint32_t)i < nbucket; i++)
3739 c[bl[i]]++;
3740 printf("Histogram for bucket list length (total of %u buckets):\n",
3741 nbucket);
3742 printf(" Length\tNumber\t\t%% of total\tCoverage\n");
3743 total = 0;
3744 for (i = 0; (uint32_t)i <= maxl; i++) {
3745 total += c[i] * i;
3746 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i],
3747 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1));
3748 }
3749 free(c);
3750 free(bl);
3751 }
3752
3753 static void
dump_hash(struct readelf * re)3754 dump_hash(struct readelf *re)
3755 {
3756 struct section *s;
3757 int i;
3758
3759 for (i = 0; (size_t) i < re->shnum; i++) {
3760 s = &re->sl[i];
3761 if (s->type == SHT_HASH || s->type == SHT_GNU_HASH) {
3762 if (s->type == SHT_GNU_HASH)
3763 dump_gnu_hash(re, s);
3764 else if (re->ehdr.e_machine == EM_ALPHA &&
3765 s->entsize == 8)
3766 dump_svr4_hash64(re, s);
3767 else
3768 dump_svr4_hash(s);
3769 }
3770 }
3771 }
3772
3773 static void
dump_notes(struct readelf * re)3774 dump_notes(struct readelf *re)
3775 {
3776 struct section *s;
3777 const char *rawfile;
3778 GElf_Phdr phdr;
3779 Elf_Data *d;
3780 size_t phnum;
3781 int i, elferr;
3782
3783 if (re->ehdr.e_type == ET_CORE) {
3784 /*
3785 * Search program headers in the core file for
3786 * PT_NOTE entry.
3787 */
3788 if (elf_getphnum(re->elf, &phnum) == 0) {
3789 warnx("elf_getphnum failed: %s", elf_errmsg(-1));
3790 return;
3791 }
3792 if (phnum == 0)
3793 return;
3794 if ((rawfile = elf_rawfile(re->elf, NULL)) == NULL) {
3795 warnx("elf_rawfile failed: %s", elf_errmsg(-1));
3796 return;
3797 }
3798 for (i = 0; (size_t) i < phnum; i++) {
3799 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) {
3800 warnx("gelf_getphdr failed: %s",
3801 elf_errmsg(-1));
3802 continue;
3803 }
3804 if (phdr.p_type == PT_NOTE)
3805 dump_notes_content(re, rawfile + phdr.p_offset,
3806 phdr.p_filesz, phdr.p_offset);
3807 }
3808
3809 } else {
3810 /*
3811 * For objects other than core files, Search for
3812 * SHT_NOTE sections.
3813 */
3814 for (i = 0; (size_t) i < re->shnum; i++) {
3815 s = &re->sl[i];
3816 if (s->type == SHT_NOTE) {
3817 (void) elf_errno();
3818 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3819 elferr = elf_errno();
3820 if (elferr != 0)
3821 warnx("elf_getdata failed: %s",
3822 elf_errmsg(elferr));
3823 continue;
3824 }
3825 dump_notes_content(re, d->d_buf, d->d_size,
3826 s->off);
3827 }
3828 }
3829 }
3830 }
3831
3832 static void
dump_notes_content(struct readelf * re,const char * buf,size_t sz,off_t off)3833 dump_notes_content(struct readelf *re, const char *buf, size_t sz, off_t off)
3834 {
3835 Elf_Note *note;
3836 const char *end, *name;
3837
3838 printf("\nNotes at offset %#010jx with length %#010jx:\n",
3839 (uintmax_t) off, (uintmax_t) sz);
3840 printf(" %-13s %-15s %s\n", "Owner", "Data size", "Description");
3841 end = buf + sz;
3842 while (buf < end) {
3843 if (buf + sizeof(*note) > end) {
3844 warnx("invalid note header");
3845 return;
3846 }
3847 note = (Elf_Note *)(uintptr_t) buf;
3848 name = (char *)(uintptr_t)(note + 1);
3849 /*
3850 * The name field is required to be nul-terminated, and
3851 * n_namesz includes the terminating nul in observed
3852 * implementations (contrary to the ELF-64 spec). A special
3853 * case is needed for cores generated by some older Linux
3854 * versions, which write a note named "CORE" without a nul
3855 * terminator and n_namesz = 4.
3856 */
3857 if (note->n_namesz == 0)
3858 name = "";
3859 else if (note->n_namesz == 4 && strncmp(name, "CORE", 4) == 0)
3860 name = "CORE";
3861 else if (strnlen(name, note->n_namesz) >= note->n_namesz)
3862 name = "<invalid>";
3863 printf(" %-13s %#010jx", name, (uintmax_t) note->n_descsz);
3864 printf(" %s\n", note_type(name, re->ehdr.e_type,
3865 note->n_type));
3866 buf += sizeof(Elf_Note) + roundup2(note->n_namesz, 4) +
3867 roundup2(note->n_descsz, 4);
3868 }
3869 }
3870
3871 /*
3872 * Symbol versioning sections are the same for 32bit and 64bit
3873 * ELF objects.
3874 */
3875 #define Elf_Verdef Elf32_Verdef
3876 #define Elf_Verdaux Elf32_Verdaux
3877 #define Elf_Verneed Elf32_Verneed
3878 #define Elf_Vernaux Elf32_Vernaux
3879
3880 #define SAVE_VERSION_NAME(x, n, t) \
3881 do { \
3882 while (x >= re->ver_sz) { \
3883 nv = realloc(re->ver, \
3884 sizeof(*re->ver) * re->ver_sz * 2); \
3885 if (nv == NULL) { \
3886 warn("realloc failed"); \
3887 free(re->ver); \
3888 return; \
3889 } \
3890 re->ver = nv; \
3891 for (i = re->ver_sz; i < re->ver_sz * 2; i++) { \
3892 re->ver[i].name = NULL; \
3893 re->ver[i].type = 0; \
3894 } \
3895 re->ver_sz *= 2; \
3896 } \
3897 if (x > 1) { \
3898 re->ver[x].name = n; \
3899 re->ver[x].type = t; \
3900 } \
3901 } while (0)
3902
3903
3904 static void
dump_verdef(struct readelf * re,int dump)3905 dump_verdef(struct readelf *re, int dump)
3906 {
3907 struct section *s;
3908 struct symver *nv;
3909 Elf_Data *d;
3910 Elf_Verdef *vd;
3911 Elf_Verdaux *vda;
3912 uint8_t *buf, *end, *buf2;
3913 const char *name;
3914 int elferr, i, j;
3915
3916 if ((s = re->vd_s) == NULL)
3917 return;
3918 if (s->link >= re->shnum)
3919 return;
3920
3921 if (re->ver == NULL) {
3922 re->ver_sz = 16;
3923 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3924 NULL) {
3925 warn("calloc failed");
3926 return;
3927 }
3928 re->ver[0].name = "*local*";
3929 re->ver[1].name = "*global*";
3930 }
3931
3932 if (dump)
3933 printf("\nVersion definition section (%s):\n", s->name);
3934 (void) elf_errno();
3935 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
3936 elferr = elf_errno();
3937 if (elferr != 0)
3938 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
3939 return;
3940 }
3941 if (d->d_size == 0)
3942 return;
3943
3944 buf = d->d_buf;
3945 end = buf + d->d_size;
3946 while (buf + sizeof(Elf_Verdef) <= end) {
3947 vd = (Elf_Verdef *) (uintptr_t) buf;
3948 if (dump) {
3949 printf(" 0x%4.4lx", (unsigned long)
3950 (buf - (uint8_t *)d->d_buf));
3951 printf(" vd_version: %u vd_flags: %d"
3952 " vd_ndx: %u vd_cnt: %u", vd->vd_version,
3953 vd->vd_flags, vd->vd_ndx, vd->vd_cnt);
3954 }
3955 buf2 = buf + vd->vd_aux;
3956 j = 0;
3957 while (buf2 + sizeof(Elf_Verdaux) <= end && j < vd->vd_cnt) {
3958 vda = (Elf_Verdaux *) (uintptr_t) buf2;
3959 name = get_string(re, s->link, vda->vda_name);
3960 if (j == 0) {
3961 if (dump)
3962 printf(" vda_name: %s\n", name);
3963 SAVE_VERSION_NAME((int)vd->vd_ndx, name, 1);
3964 } else if (dump)
3965 printf(" 0x%4.4lx parent: %s\n",
3966 (unsigned long) (buf2 -
3967 (uint8_t *)d->d_buf), name);
3968 if (vda->vda_next == 0)
3969 break;
3970 buf2 += vda->vda_next;
3971 j++;
3972 }
3973 if (vd->vd_next == 0)
3974 break;
3975 buf += vd->vd_next;
3976 }
3977 }
3978
3979 static void
dump_verneed(struct readelf * re,int dump)3980 dump_verneed(struct readelf *re, int dump)
3981 {
3982 struct section *s;
3983 struct symver *nv;
3984 Elf_Data *d;
3985 Elf_Verneed *vn;
3986 Elf_Vernaux *vna;
3987 uint8_t *buf, *end, *buf2;
3988 const char *name;
3989 int elferr, i, j;
3990
3991 if ((s = re->vn_s) == NULL)
3992 return;
3993 if (s->link >= re->shnum)
3994 return;
3995
3996 if (re->ver == NULL) {
3997 re->ver_sz = 16;
3998 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) ==
3999 NULL) {
4000 warn("calloc failed");
4001 return;
4002 }
4003 re->ver[0].name = "*local*";
4004 re->ver[1].name = "*global*";
4005 }
4006
4007 if (dump)
4008 printf("\nVersion needed section (%s):\n", s->name);
4009 (void) elf_errno();
4010 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4011 elferr = elf_errno();
4012 if (elferr != 0)
4013 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
4014 return;
4015 }
4016 if (d->d_size == 0)
4017 return;
4018
4019 buf = d->d_buf;
4020 end = buf + d->d_size;
4021 while (buf + sizeof(Elf_Verneed) <= end) {
4022 vn = (Elf_Verneed *) (uintptr_t) buf;
4023 if (dump) {
4024 printf(" 0x%4.4lx", (unsigned long)
4025 (buf - (uint8_t *)d->d_buf));
4026 printf(" vn_version: %u vn_file: %s vn_cnt: %u\n",
4027 vn->vn_version,
4028 get_string(re, s->link, vn->vn_file),
4029 vn->vn_cnt);
4030 }
4031 buf2 = buf + vn->vn_aux;
4032 j = 0;
4033 while (buf2 + sizeof(Elf_Vernaux) <= end && j < vn->vn_cnt) {
4034 vna = (Elf32_Vernaux *) (uintptr_t) buf2;
4035 if (dump)
4036 printf(" 0x%4.4lx", (unsigned long)
4037 (buf2 - (uint8_t *)d->d_buf));
4038 name = get_string(re, s->link, vna->vna_name);
4039 if (dump)
4040 printf(" vna_name: %s vna_flags: %u"
4041 " vna_other: %u\n", name,
4042 vna->vna_flags, vna->vna_other);
4043 SAVE_VERSION_NAME((int)vna->vna_other, name, 0);
4044 if (vna->vna_next == 0)
4045 break;
4046 buf2 += vna->vna_next;
4047 j++;
4048 }
4049 if (vn->vn_next == 0)
4050 break;
4051 buf += vn->vn_next;
4052 }
4053 }
4054
4055 static void
dump_versym(struct readelf * re)4056 dump_versym(struct readelf *re)
4057 {
4058 int i;
4059 uint16_t vs;
4060
4061 if (re->vs_s == NULL || re->ver == NULL || re->vs == NULL)
4062 return;
4063 printf("\nVersion symbol section (%s):\n", re->vs_s->name);
4064 for (i = 0; i < re->vs_sz; i++) {
4065 if ((i & 3) == 0) {
4066 if (i > 0)
4067 putchar('\n');
4068 printf(" %03x:", i);
4069 }
4070 vs = re->vs[i] & VERSYM_VERSION;
4071 if (vs >= re->ver_sz || re->ver[vs].name == NULL) {
4072 warnx("invalid versym version index %u", re->vs[i]);
4073 break;
4074 }
4075 if (re->vs[i] & VERSYM_HIDDEN)
4076 printf(" %3xh %-12s ", vs,
4077 re->ver[re->vs[i] & VERSYM_VERSION].name);
4078 else
4079 printf(" %3x %-12s ", vs, re->ver[re->vs[i]].name);
4080 }
4081 putchar('\n');
4082 }
4083
4084 static void
dump_ver(struct readelf * re)4085 dump_ver(struct readelf *re)
4086 {
4087
4088 if (re->vs_s && re->ver && re->vs)
4089 dump_versym(re);
4090 if (re->vd_s)
4091 dump_verdef(re, 1);
4092 if (re->vn_s)
4093 dump_verneed(re, 1);
4094 }
4095
4096 static void
search_ver(struct readelf * re)4097 search_ver(struct readelf *re)
4098 {
4099 struct section *s;
4100 Elf_Data *d;
4101 int elferr, i;
4102
4103 for (i = 0; (size_t) i < re->shnum; i++) {
4104 s = &re->sl[i];
4105 if (s->type == SHT_SUNW_versym)
4106 re->vs_s = s;
4107 if (s->type == SHT_SUNW_verneed)
4108 re->vn_s = s;
4109 if (s->type == SHT_SUNW_verdef)
4110 re->vd_s = s;
4111 }
4112 if (re->vd_s)
4113 dump_verdef(re, 0);
4114 if (re->vn_s)
4115 dump_verneed(re, 0);
4116 if (re->vs_s && re->ver != NULL) {
4117 (void) elf_errno();
4118 if ((d = elf_getdata(re->vs_s->scn, NULL)) == NULL) {
4119 elferr = elf_errno();
4120 if (elferr != 0)
4121 warnx("elf_getdata failed: %s",
4122 elf_errmsg(elferr));
4123 return;
4124 }
4125 if (d->d_size == 0)
4126 return;
4127 re->vs = d->d_buf;
4128 re->vs_sz = d->d_size / sizeof(Elf32_Half);
4129 }
4130 }
4131
4132 #undef Elf_Verdef
4133 #undef Elf_Verdaux
4134 #undef Elf_Verneed
4135 #undef Elf_Vernaux
4136 #undef SAVE_VERSION_NAME
4137
4138 /*
4139 * Elf32_Lib and Elf64_Lib are identical.
4140 */
4141 #define Elf_Lib Elf32_Lib
4142
4143 static void
dump_liblist(struct readelf * re)4144 dump_liblist(struct readelf *re)
4145 {
4146 struct section *s;
4147 struct tm *t;
4148 time_t ti;
4149 char tbuf[20];
4150 Elf_Data *d;
4151 Elf_Lib *lib;
4152 int i, j, k, elferr, first, len;
4153
4154 for (i = 0; (size_t) i < re->shnum; i++) {
4155 s = &re->sl[i];
4156 if (s->type != SHT_GNU_LIBLIST)
4157 continue;
4158 if (s->link >= re->shnum)
4159 continue;
4160 (void) elf_errno();
4161 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4162 elferr = elf_errno();
4163 if (elferr != 0)
4164 warnx("elf_getdata failed: %s",
4165 elf_errmsg(elferr));
4166 continue;
4167 }
4168 if (d->d_size <= 0)
4169 continue;
4170 lib = d->d_buf;
4171 if (!get_ent_count(s, &len))
4172 continue;
4173 printf("\nLibrary list section '%s' ", s->name);
4174 printf("contains %d entries:\n", len);
4175 printf("%12s%24s%18s%10s%6s\n", "Library", "Time Stamp",
4176 "Checksum", "Version", "Flags");
4177 for (j = 0; (uint64_t) j < s->sz / s->entsize; j++) {
4178 printf("%3d: ", j);
4179 printf("%-20.20s ",
4180 get_string(re, s->link, lib->l_name));
4181 ti = lib->l_time_stamp;
4182 t = gmtime(&ti);
4183 snprintf(tbuf, sizeof(tbuf), "%04d-%02d-%02dT%02d:%02d"
4184 ":%2d", t->tm_year + 1900, t->tm_mon + 1,
4185 t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
4186 printf("%-19.19s ", tbuf);
4187 printf("0x%08x ", lib->l_checksum);
4188 printf("%-7d %#x", lib->l_version, lib->l_flags);
4189 if (lib->l_flags != 0) {
4190 first = 1;
4191 putchar('(');
4192 for (k = 0; l_flag[k].name != NULL; k++) {
4193 if ((l_flag[k].value & lib->l_flags) ==
4194 0)
4195 continue;
4196 if (!first)
4197 putchar(',');
4198 else
4199 first = 0;
4200 printf("%s", l_flag[k].name);
4201 }
4202 putchar(')');
4203 }
4204 putchar('\n');
4205 lib++;
4206 }
4207 }
4208 }
4209
4210 #undef Elf_Lib
4211
4212 static void
dump_section_groups(struct readelf * re)4213 dump_section_groups(struct readelf *re)
4214 {
4215 struct section *s;
4216 const char *symname;
4217 Elf_Data *d;
4218 uint32_t *w;
4219 int i, j, elferr;
4220 size_t n;
4221
4222 for (i = 0; (size_t) i < re->shnum; i++) {
4223 s = &re->sl[i];
4224 if (s->type != SHT_GROUP)
4225 continue;
4226 if (s->link >= re->shnum)
4227 continue;
4228 (void) elf_errno();
4229 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4230 elferr = elf_errno();
4231 if (elferr != 0)
4232 warnx("elf_getdata failed: %s",
4233 elf_errmsg(elferr));
4234 continue;
4235 }
4236 if (d->d_size <= 0)
4237 continue;
4238
4239 w = d->d_buf;
4240
4241 /* We only support COMDAT section. */
4242 if ((*w++ & GRP_COMDAT) == 0)
4243 return;
4244
4245 if (s->entsize == 0)
4246 s->entsize = 4;
4247
4248 symname = get_symbol_name(re, s->link, s->info);
4249 n = s->sz / s->entsize;
4250 if (n-- < 1)
4251 return;
4252
4253 printf("\nCOMDAT group section [%5d] `%s' [%s] contains %ju"
4254 " sections:\n", i, s->name, symname, (uintmax_t)n);
4255 printf(" %-10.10s %s\n", "[Index]", "Name");
4256 for (j = 0; (size_t) j < n; j++, w++) {
4257 if (*w >= re->shnum) {
4258 warnx("invalid section index: %u", *w);
4259 continue;
4260 }
4261 printf(" [%5u] %s\n", *w, re->sl[*w].name);
4262 }
4263 }
4264 }
4265
4266 static uint8_t *
dump_unknown_tag(uint64_t tag,uint8_t * p,uint8_t * pe)4267 dump_unknown_tag(uint64_t tag, uint8_t *p, uint8_t *pe)
4268 {
4269 uint64_t val;
4270
4271 /*
4272 * According to ARM EABI: For tags > 32, even numbered tags have
4273 * a ULEB128 param and odd numbered ones have NUL-terminated
4274 * string param. This rule probably also applies for tags <= 32
4275 * if the object arch is not ARM.
4276 */
4277
4278 printf(" Tag_unknown_%ju: ", (uintmax_t) tag);
4279
4280 if (tag & 1) {
4281 printf("%s\n", (char *) p);
4282 p += strlen((char *) p) + 1;
4283 } else {
4284 val = _decode_uleb128(&p, pe);
4285 printf("%ju\n", (uintmax_t) val);
4286 }
4287
4288 return (p);
4289 }
4290
4291 static uint8_t *
dump_compatibility_tag(uint8_t * p,uint8_t * pe)4292 dump_compatibility_tag(uint8_t *p, uint8_t *pe)
4293 {
4294 uint64_t val;
4295
4296 val = _decode_uleb128(&p, pe);
4297 printf("flag = %ju, vendor = %s\n", (uintmax_t) val, p);
4298 p += strlen((char *) p) + 1;
4299
4300 return (p);
4301 }
4302
4303 static void
dump_arm_attributes(struct readelf * re,uint8_t * p,uint8_t * pe)4304 dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
4305 {
4306 uint64_t tag, val;
4307 size_t i;
4308 int found, desc;
4309
4310 (void) re;
4311
4312 while (p < pe) {
4313 tag = _decode_uleb128(&p, pe);
4314 found = desc = 0;
4315 for (i = 0; i < sizeof(aeabi_tags) / sizeof(aeabi_tags[0]);
4316 i++) {
4317 if (tag == aeabi_tags[i].tag) {
4318 found = 1;
4319 printf(" %s: ", aeabi_tags[i].s_tag);
4320 if (aeabi_tags[i].get_desc) {
4321 desc = 1;
4322 val = _decode_uleb128(&p, pe);
4323 printf("%s\n",
4324 aeabi_tags[i].get_desc(val));
4325 }
4326 break;
4327 }
4328 if (tag < aeabi_tags[i].tag)
4329 break;
4330 }
4331 if (!found) {
4332 p = dump_unknown_tag(tag, p, pe);
4333 continue;
4334 }
4335 if (desc)
4336 continue;
4337
4338 switch (tag) {
4339 case 4: /* Tag_CPU_raw_name */
4340 case 5: /* Tag_CPU_name */
4341 case 67: /* Tag_conformance */
4342 printf("%s\n", (char *) p);
4343 p += strlen((char *) p) + 1;
4344 break;
4345 case 32: /* Tag_compatibility */
4346 p = dump_compatibility_tag(p, pe);
4347 break;
4348 case 64: /* Tag_nodefaults */
4349 /* ignored, written as 0. */
4350 (void) _decode_uleb128(&p, pe);
4351 printf("True\n");
4352 break;
4353 case 65: /* Tag_also_compatible_with */
4354 val = _decode_uleb128(&p, pe);
4355 /* Must be Tag_CPU_arch */
4356 if (val != 6) {
4357 printf("unknown\n");
4358 break;
4359 }
4360 val = _decode_uleb128(&p, pe);
4361 printf("%s\n", aeabi_cpu_arch(val));
4362 /* Skip NUL terminator. */
4363 p++;
4364 break;
4365 default:
4366 putchar('\n');
4367 break;
4368 }
4369 }
4370 }
4371
4372 #ifndef Tag_GNU_MIPS_ABI_FP
4373 #define Tag_GNU_MIPS_ABI_FP 4
4374 #endif
4375
4376 static void
dump_mips_attributes(struct readelf * re,uint8_t * p,uint8_t * pe)4377 dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe)
4378 {
4379 uint64_t tag, val;
4380
4381 (void) re;
4382
4383 while (p < pe) {
4384 tag = _decode_uleb128(&p, pe);
4385 switch (tag) {
4386 case Tag_GNU_MIPS_ABI_FP:
4387 val = _decode_uleb128(&p, pe);
4388 printf(" Tag_GNU_MIPS_ABI_FP: %s\n", mips_abi_fp(val));
4389 break;
4390 case 32: /* Tag_compatibility */
4391 p = dump_compatibility_tag(p, pe);
4392 break;
4393 default:
4394 p = dump_unknown_tag(tag, p, pe);
4395 break;
4396 }
4397 }
4398 }
4399
4400 #ifndef Tag_GNU_Power_ABI_FP
4401 #define Tag_GNU_Power_ABI_FP 4
4402 #endif
4403
4404 #ifndef Tag_GNU_Power_ABI_Vector
4405 #define Tag_GNU_Power_ABI_Vector 8
4406 #endif
4407
4408 static void
dump_ppc_attributes(uint8_t * p,uint8_t * pe)4409 dump_ppc_attributes(uint8_t *p, uint8_t *pe)
4410 {
4411 uint64_t tag, val;
4412
4413 while (p < pe) {
4414 tag = _decode_uleb128(&p, pe);
4415 switch (tag) {
4416 case Tag_GNU_Power_ABI_FP:
4417 val = _decode_uleb128(&p, pe);
4418 printf(" Tag_GNU_Power_ABI_FP: %s\n", ppc_abi_fp(val));
4419 break;
4420 case Tag_GNU_Power_ABI_Vector:
4421 val = _decode_uleb128(&p, pe);
4422 printf(" Tag_GNU_Power_ABI_Vector: %s\n",
4423 ppc_abi_vector(val));
4424 break;
4425 case 32: /* Tag_compatibility */
4426 p = dump_compatibility_tag(p, pe);
4427 break;
4428 default:
4429 p = dump_unknown_tag(tag, p, pe);
4430 break;
4431 }
4432 }
4433 }
4434
4435 static void
dump_attributes(struct readelf * re)4436 dump_attributes(struct readelf *re)
4437 {
4438 struct section *s;
4439 Elf_Data *d;
4440 uint8_t *p, *pe, *sp;
4441 size_t len, seclen, nlen, sublen;
4442 uint64_t val;
4443 int tag, i, elferr;
4444
4445 for (i = 0; (size_t) i < re->shnum; i++) {
4446 s = &re->sl[i];
4447 if (s->type != SHT_GNU_ATTRIBUTES &&
4448 (re->ehdr.e_machine != EM_ARM || s->type != SHT_LOPROC + 3))
4449 continue;
4450 (void) elf_errno();
4451 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4452 elferr = elf_errno();
4453 if (elferr != 0)
4454 warnx("elf_rawdata failed: %s",
4455 elf_errmsg(elferr));
4456 continue;
4457 }
4458 if (d->d_size <= 0)
4459 continue;
4460 p = d->d_buf;
4461 pe = p + d->d_size;
4462 if (*p != 'A') {
4463 printf("Unknown Attribute Section Format: %c\n",
4464 (char) *p);
4465 continue;
4466 }
4467 len = d->d_size - 1;
4468 p++;
4469 while (len > 0) {
4470 if (len < 4) {
4471 warnx("truncated attribute section length");
4472 return;
4473 }
4474 seclen = re->dw_decode(&p, 4);
4475 if (seclen > len) {
4476 warnx("invalid attribute section length");
4477 return;
4478 }
4479 len -= seclen;
4480 nlen = strlen((char *) p) + 1;
4481 if (nlen + 4 > seclen) {
4482 warnx("invalid attribute section name");
4483 return;
4484 }
4485 printf("Attribute Section: %s\n", (char *) p);
4486 p += nlen;
4487 seclen -= nlen + 4;
4488 while (seclen > 0) {
4489 sp = p;
4490 tag = *p++;
4491 sublen = re->dw_decode(&p, 4);
4492 if (sublen > seclen) {
4493 warnx("invalid attribute sub-section"
4494 " length");
4495 return;
4496 }
4497 seclen -= sublen;
4498 printf("%s", top_tag(tag));
4499 if (tag == 2 || tag == 3) {
4500 putchar(':');
4501 for (;;) {
4502 val = _decode_uleb128(&p, pe);
4503 if (val == 0)
4504 break;
4505 printf(" %ju", (uintmax_t) val);
4506 }
4507 }
4508 putchar('\n');
4509 if (re->ehdr.e_machine == EM_ARM &&
4510 s->type == SHT_LOPROC + 3)
4511 dump_arm_attributes(re, p, sp + sublen);
4512 else if (re->ehdr.e_machine == EM_MIPS ||
4513 re->ehdr.e_machine == EM_MIPS_RS3_LE)
4514 dump_mips_attributes(re, p,
4515 sp + sublen);
4516 else if (re->ehdr.e_machine == EM_PPC)
4517 dump_ppc_attributes(p, sp + sublen);
4518 p = sp + sublen;
4519 }
4520 }
4521 }
4522 }
4523
4524 static void
dump_mips_specific_info(struct readelf * re)4525 dump_mips_specific_info(struct readelf *re)
4526 {
4527 struct section *s;
4528 int i, options_found;
4529
4530 options_found = 0;
4531 s = NULL;
4532 for (i = 0; (size_t) i < re->shnum; i++) {
4533 s = &re->sl[i];
4534 if (s->name != NULL && (!strcmp(s->name, ".MIPS.options") ||
4535 (s->type == SHT_MIPS_OPTIONS))) {
4536 dump_mips_options(re, s);
4537 options_found = 1;
4538 }
4539 }
4540
4541 /*
4542 * According to SGI mips64 spec, .reginfo should be ignored if
4543 * .MIPS.options section is present.
4544 */
4545 if (!options_found) {
4546 for (i = 0; (size_t) i < re->shnum; i++) {
4547 s = &re->sl[i];
4548 if (s->name != NULL && (!strcmp(s->name, ".reginfo") ||
4549 (s->type == SHT_MIPS_REGINFO)))
4550 dump_mips_reginfo(re, s);
4551 }
4552 }
4553 }
4554
4555 static void
dump_mips_reginfo(struct readelf * re,struct section * s)4556 dump_mips_reginfo(struct readelf *re, struct section *s)
4557 {
4558 Elf_Data *d;
4559 int elferr, len;
4560
4561 (void) elf_errno();
4562 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4563 elferr = elf_errno();
4564 if (elferr != 0)
4565 warnx("elf_rawdata failed: %s",
4566 elf_errmsg(elferr));
4567 return;
4568 }
4569 if (d->d_size <= 0)
4570 return;
4571 if (!get_ent_count(s, &len))
4572 return;
4573
4574 printf("\nSection '%s' contains %d entries:\n", s->name, len);
4575 dump_mips_odk_reginfo(re, d->d_buf, d->d_size);
4576 }
4577
4578 static void
dump_mips_options(struct readelf * re,struct section * s)4579 dump_mips_options(struct readelf *re, struct section *s)
4580 {
4581 Elf_Data *d;
4582 uint32_t info;
4583 uint16_t sndx;
4584 uint8_t *p, *pe;
4585 uint8_t kind, size;
4586 int elferr;
4587
4588 (void) elf_errno();
4589 if ((d = elf_rawdata(s->scn, NULL)) == NULL) {
4590 elferr = elf_errno();
4591 if (elferr != 0)
4592 warnx("elf_rawdata failed: %s",
4593 elf_errmsg(elferr));
4594 return;
4595 }
4596 if (d->d_size == 0)
4597 return;
4598
4599 printf("\nSection %s contains:\n", s->name);
4600 p = d->d_buf;
4601 pe = p + d->d_size;
4602 while (p < pe) {
4603 if (pe - p < 8) {
4604 warnx("Truncated MIPS option header");
4605 return;
4606 }
4607 kind = re->dw_decode(&p, 1);
4608 size = re->dw_decode(&p, 1);
4609 sndx = re->dw_decode(&p, 2);
4610 info = re->dw_decode(&p, 4);
4611 if (size < 8 || size - 8 > pe - p) {
4612 warnx("Malformed MIPS option header");
4613 return;
4614 }
4615 size -= 8;
4616 switch (kind) {
4617 case ODK_REGINFO:
4618 dump_mips_odk_reginfo(re, p, size);
4619 break;
4620 case ODK_EXCEPTIONS:
4621 printf(" EXCEPTIONS FPU_MIN: %#x\n",
4622 info & OEX_FPU_MIN);
4623 printf("%11.11s FPU_MAX: %#x\n", "",
4624 info & OEX_FPU_MAX);
4625 dump_mips_option_flags("", mips_exceptions_option,
4626 info);
4627 break;
4628 case ODK_PAD:
4629 printf(" %-10.10s section: %ju\n", "OPAD",
4630 (uintmax_t) sndx);
4631 dump_mips_option_flags("", mips_pad_option, info);
4632 break;
4633 case ODK_HWPATCH:
4634 dump_mips_option_flags("HWPATCH", mips_hwpatch_option,
4635 info);
4636 break;
4637 case ODK_HWAND:
4638 dump_mips_option_flags("HWAND", mips_hwa_option, info);
4639 break;
4640 case ODK_HWOR:
4641 dump_mips_option_flags("HWOR", mips_hwo_option, info);
4642 break;
4643 case ODK_FILL:
4644 printf(" %-10.10s %#jx\n", "FILL", (uintmax_t) info);
4645 break;
4646 case ODK_TAGS:
4647 printf(" %-10.10s\n", "TAGS");
4648 break;
4649 case ODK_GP_GROUP:
4650 printf(" %-10.10s GP group number: %#x\n", "GP_GROUP",
4651 info & 0xFFFF);
4652 if (info & 0x10000)
4653 printf(" %-10.10s GP group is "
4654 "self-contained\n", "");
4655 break;
4656 case ODK_IDENT:
4657 printf(" %-10.10s default GP group number: %#x\n",
4658 "IDENT", info & 0xFFFF);
4659 if (info & 0x10000)
4660 printf(" %-10.10s default GP group is "
4661 "self-contained\n", "");
4662 break;
4663 case ODK_PAGESIZE:
4664 printf(" %-10.10s\n", "PAGESIZE");
4665 break;
4666 default:
4667 break;
4668 }
4669 p += size;
4670 }
4671 }
4672
4673 static void
dump_mips_option_flags(const char * name,struct mips_option * opt,uint64_t info)4674 dump_mips_option_flags(const char *name, struct mips_option *opt, uint64_t info)
4675 {
4676 int first;
4677
4678 first = 1;
4679 for (; opt->desc != NULL; opt++) {
4680 if (info & opt->flag) {
4681 printf(" %-10.10s %s\n", first ? name : "",
4682 opt->desc);
4683 first = 0;
4684 }
4685 }
4686 }
4687
4688 static void
dump_mips_odk_reginfo(struct readelf * re,uint8_t * p,size_t sz)4689 dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz)
4690 {
4691 uint32_t ri_gprmask;
4692 uint32_t ri_cprmask[4];
4693 uint64_t ri_gp_value;
4694 uint8_t *pe;
4695 int i;
4696
4697 pe = p + sz;
4698 while (p < pe) {
4699 ri_gprmask = re->dw_decode(&p, 4);
4700 /* Skip ri_pad padding field for mips64. */
4701 if (re->ec == ELFCLASS64)
4702 re->dw_decode(&p, 4);
4703 for (i = 0; i < 4; i++)
4704 ri_cprmask[i] = re->dw_decode(&p, 4);
4705 if (re->ec == ELFCLASS32)
4706 ri_gp_value = re->dw_decode(&p, 4);
4707 else
4708 ri_gp_value = re->dw_decode(&p, 8);
4709 printf(" %s ", option_kind(ODK_REGINFO));
4710 printf("ri_gprmask: 0x%08jx\n", (uintmax_t) ri_gprmask);
4711 for (i = 0; i < 4; i++)
4712 printf("%11.11s ri_cprmask[%d]: 0x%08jx\n", "", i,
4713 (uintmax_t) ri_cprmask[i]);
4714 printf("%12.12s", "");
4715 printf("ri_gp_value: %#jx\n", (uintmax_t) ri_gp_value);
4716 }
4717 }
4718
4719 static void
dump_arch_specific_info(struct readelf * re)4720 dump_arch_specific_info(struct readelf *re)
4721 {
4722
4723 dump_liblist(re);
4724 dump_attributes(re);
4725
4726 switch (re->ehdr.e_machine) {
4727 case EM_MIPS:
4728 case EM_MIPS_RS3_LE:
4729 dump_mips_specific_info(re);
4730 default:
4731 break;
4732 }
4733 }
4734
4735 static const char *
dwarf_regname(struct readelf * re,unsigned int num)4736 dwarf_regname(struct readelf *re, unsigned int num)
4737 {
4738 static char rx[32];
4739 const char *rn;
4740
4741 if ((rn = dwarf_reg(re->ehdr.e_machine, num)) != NULL)
4742 return (rn);
4743
4744 snprintf(rx, sizeof(rx), "r%u", num);
4745
4746 return (rx);
4747 }
4748
4749 static void
dump_dwarf_line(struct readelf * re)4750 dump_dwarf_line(struct readelf *re)
4751 {
4752 struct section *s;
4753 Dwarf_Die die;
4754 Dwarf_Error de;
4755 Dwarf_Half tag, version, pointer_size;
4756 Dwarf_Unsigned offset, endoff, length, hdrlen, dirndx, mtime, fsize;
4757 Dwarf_Small minlen, defstmt, lrange, opbase, oplen;
4758 Elf_Data *d;
4759 char *pn;
4760 uint64_t address, file, line, column, isa, opsize, udelta;
4761 int64_t sdelta;
4762 uint8_t *p, *pe;
4763 int8_t lbase;
4764 int i, is_stmt, dwarf_size, elferr, ret;
4765
4766 printf("\nDump of debug contents of section .debug_line:\n");
4767
4768 s = NULL;
4769 for (i = 0; (size_t) i < re->shnum; i++) {
4770 s = &re->sl[i];
4771 if (s->name != NULL && !strcmp(s->name, ".debug_line"))
4772 break;
4773 }
4774 if ((size_t) i >= re->shnum)
4775 return;
4776
4777 (void) elf_errno();
4778 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
4779 elferr = elf_errno();
4780 if (elferr != 0)
4781 warnx("elf_getdata failed: %s", elf_errmsg(-1));
4782 return;
4783 }
4784 if (d->d_size <= 0)
4785 return;
4786
4787 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
4788 NULL, &de)) == DW_DLV_OK) {
4789 die = NULL;
4790 while (dwarf_siblingof(re->dbg, die, &die, &de) == DW_DLV_OK) {
4791 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
4792 warnx("dwarf_tag failed: %s",
4793 dwarf_errmsg(de));
4794 return;
4795 }
4796 /* XXX: What about DW_TAG_partial_unit? */
4797 if (tag == DW_TAG_compile_unit)
4798 break;
4799 }
4800 if (die == NULL) {
4801 warnx("could not find DW_TAG_compile_unit die");
4802 return;
4803 }
4804 if (dwarf_attrval_unsigned(die, DW_AT_stmt_list, &offset,
4805 &de) != DW_DLV_OK)
4806 continue;
4807
4808 length = re->dw_read(d, &offset, 4);
4809 if (length == 0xffffffff) {
4810 dwarf_size = 8;
4811 length = re->dw_read(d, &offset, 8);
4812 } else
4813 dwarf_size = 4;
4814
4815 if (length > d->d_size - offset) {
4816 warnx("invalid .dwarf_line section");
4817 continue;
4818 }
4819
4820 endoff = offset + length;
4821 pe = (uint8_t *) d->d_buf + endoff;
4822 version = re->dw_read(d, &offset, 2);
4823 hdrlen = re->dw_read(d, &offset, dwarf_size);
4824 minlen = re->dw_read(d, &offset, 1);
4825 defstmt = re->dw_read(d, &offset, 1);
4826 lbase = re->dw_read(d, &offset, 1);
4827 lrange = re->dw_read(d, &offset, 1);
4828 opbase = re->dw_read(d, &offset, 1);
4829
4830 printf("\n");
4831 printf(" Length:\t\t\t%ju\n", (uintmax_t) length);
4832 printf(" DWARF version:\t\t%u\n", version);
4833 printf(" Prologue Length:\t\t%ju\n", (uintmax_t) hdrlen);
4834 printf(" Minimum Instruction Length:\t%u\n", minlen);
4835 printf(" Initial value of 'is_stmt':\t%u\n", defstmt);
4836 printf(" Line Base:\t\t\t%d\n", lbase);
4837 printf(" Line Range:\t\t\t%u\n", lrange);
4838 printf(" Opcode Base:\t\t\t%u\n", opbase);
4839 (void) dwarf_get_address_size(re->dbg, &pointer_size, &de);
4840 printf(" (Pointer size:\t\t%u)\n", pointer_size);
4841
4842 printf("\n");
4843 printf(" Opcodes:\n");
4844 for (i = 1; i < opbase; i++) {
4845 oplen = re->dw_read(d, &offset, 1);
4846 printf(" Opcode %d has %u args\n", i, oplen);
4847 }
4848
4849 printf("\n");
4850 printf(" The Directory Table:\n");
4851 p = (uint8_t *) d->d_buf + offset;
4852 while (*p != '\0') {
4853 printf(" %s\n", (char *) p);
4854 p += strlen((char *) p) + 1;
4855 }
4856
4857 p++;
4858 printf("\n");
4859 printf(" The File Name Table:\n");
4860 printf(" Entry\tDir\tTime\tSize\tName\n");
4861 i = 0;
4862 while (*p != '\0') {
4863 i++;
4864 pn = (char *) p;
4865 p += strlen(pn) + 1;
4866 dirndx = _decode_uleb128(&p, pe);
4867 mtime = _decode_uleb128(&p, pe);
4868 fsize = _decode_uleb128(&p, pe);
4869 printf(" %d\t%ju\t%ju\t%ju\t%s\n", i,
4870 (uintmax_t) dirndx, (uintmax_t) mtime,
4871 (uintmax_t) fsize, pn);
4872 }
4873
4874 #define RESET_REGISTERS \
4875 do { \
4876 address = 0; \
4877 file = 1; \
4878 line = 1; \
4879 column = 0; \
4880 is_stmt = defstmt; \
4881 } while(0)
4882
4883 #define LINE(x) (lbase + (((x) - opbase) % lrange))
4884 #define ADDRESS(x) ((((x) - opbase) / lrange) * minlen)
4885
4886 p++;
4887 printf("\n");
4888 printf(" Line Number Statements:\n");
4889
4890 RESET_REGISTERS;
4891
4892 while (p < pe) {
4893
4894 if (*p == 0) {
4895 /*
4896 * Extended Opcodes.
4897 */
4898 p++;
4899 opsize = _decode_uleb128(&p, pe);
4900 printf(" Extended opcode %u: ", *p);
4901 switch (*p) {
4902 case DW_LNE_end_sequence:
4903 p++;
4904 RESET_REGISTERS;
4905 printf("End of Sequence\n");
4906 break;
4907 case DW_LNE_set_address:
4908 p++;
4909 address = re->dw_decode(&p,
4910 pointer_size);
4911 printf("set Address to %#jx\n",
4912 (uintmax_t) address);
4913 break;
4914 case DW_LNE_define_file:
4915 p++;
4916 pn = (char *) p;
4917 p += strlen(pn) + 1;
4918 dirndx = _decode_uleb128(&p, pe);
4919 mtime = _decode_uleb128(&p, pe);
4920 fsize = _decode_uleb128(&p, pe);
4921 printf("define new file: %s\n", pn);
4922 break;
4923 default:
4924 /* Unrecognized extened opcodes. */
4925 p += opsize;
4926 printf("unknown opcode\n");
4927 }
4928 } else if (*p > 0 && *p < opbase) {
4929 /*
4930 * Standard Opcodes.
4931 */
4932 switch(*p++) {
4933 case DW_LNS_copy:
4934 printf(" Copy\n");
4935 break;
4936 case DW_LNS_advance_pc:
4937 udelta = _decode_uleb128(&p, pe) *
4938 minlen;
4939 address += udelta;
4940 printf(" Advance PC by %ju to %#jx\n",
4941 (uintmax_t) udelta,
4942 (uintmax_t) address);
4943 break;
4944 case DW_LNS_advance_line:
4945 sdelta = _decode_sleb128(&p, pe);
4946 line += sdelta;
4947 printf(" Advance Line by %jd to %ju\n",
4948 (intmax_t) sdelta,
4949 (uintmax_t) line);
4950 break;
4951 case DW_LNS_set_file:
4952 file = _decode_uleb128(&p, pe);
4953 printf(" Set File to %ju\n",
4954 (uintmax_t) file);
4955 break;
4956 case DW_LNS_set_column:
4957 column = _decode_uleb128(&p, pe);
4958 printf(" Set Column to %ju\n",
4959 (uintmax_t) column);
4960 break;
4961 case DW_LNS_negate_stmt:
4962 is_stmt = !is_stmt;
4963 printf(" Set is_stmt to %d\n", is_stmt);
4964 break;
4965 case DW_LNS_set_basic_block:
4966 printf(" Set basic block flag\n");
4967 break;
4968 case DW_LNS_const_add_pc:
4969 address += ADDRESS(255);
4970 printf(" Advance PC by constant %ju"
4971 " to %#jx\n",
4972 (uintmax_t) ADDRESS(255),
4973 (uintmax_t) address);
4974 break;
4975 case DW_LNS_fixed_advance_pc:
4976 udelta = re->dw_decode(&p, 2);
4977 address += udelta;
4978 printf(" Advance PC by fixed value "
4979 "%ju to %#jx\n",
4980 (uintmax_t) udelta,
4981 (uintmax_t) address);
4982 break;
4983 case DW_LNS_set_prologue_end:
4984 printf(" Set prologue end flag\n");
4985 break;
4986 case DW_LNS_set_epilogue_begin:
4987 printf(" Set epilogue begin flag\n");
4988 break;
4989 case DW_LNS_set_isa:
4990 isa = _decode_uleb128(&p, pe);
4991 printf(" Set isa to %ju\n",
4992 (uintmax_t) isa);
4993 break;
4994 default:
4995 /* Unrecognized extended opcodes. */
4996 printf(" Unknown extended opcode %u\n",
4997 *(p - 1));
4998 break;
4999 }
5000
5001 } else {
5002 /*
5003 * Special Opcodes.
5004 */
5005 line += LINE(*p);
5006 address += ADDRESS(*p);
5007 printf(" Special opcode %u: advance Address "
5008 "by %ju to %#jx and Line by %jd to %ju\n",
5009 *p - opbase, (uintmax_t) ADDRESS(*p),
5010 (uintmax_t) address, (intmax_t) LINE(*p),
5011 (uintmax_t) line);
5012 p++;
5013 }
5014
5015
5016 }
5017 }
5018 if (ret == DW_DLV_ERROR)
5019 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5020
5021 #undef RESET_REGISTERS
5022 #undef LINE
5023 #undef ADDRESS
5024 }
5025
5026 static void
dump_dwarf_line_decoded(struct readelf * re)5027 dump_dwarf_line_decoded(struct readelf *re)
5028 {
5029 Dwarf_Die die;
5030 Dwarf_Line *linebuf, ln;
5031 Dwarf_Addr lineaddr;
5032 Dwarf_Signed linecount, srccount;
5033 Dwarf_Unsigned lineno, fn;
5034 Dwarf_Error de;
5035 const char *dir, *file;
5036 char **srcfiles;
5037 int i, ret;
5038
5039 printf("Decoded dump of debug contents of section .debug_line:\n\n");
5040 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
5041 NULL, &de)) == DW_DLV_OK) {
5042 if (dwarf_siblingof(re->dbg, NULL, &die, &de) != DW_DLV_OK)
5043 continue;
5044 if (dwarf_attrval_string(die, DW_AT_name, &file, &de) !=
5045 DW_DLV_OK)
5046 file = NULL;
5047 if (dwarf_attrval_string(die, DW_AT_comp_dir, &dir, &de) !=
5048 DW_DLV_OK)
5049 dir = NULL;
5050 printf("CU: ");
5051 if (dir && file)
5052 printf("%s/", dir);
5053 if (file)
5054 printf("%s", file);
5055 putchar('\n');
5056 printf("%-37s %11s %s\n", "Filename", "Line Number",
5057 "Starting Address");
5058 if (dwarf_srclines(die, &linebuf, &linecount, &de) != DW_DLV_OK)
5059 continue;
5060 if (dwarf_srcfiles(die, &srcfiles, &srccount, &de) != DW_DLV_OK)
5061 continue;
5062 for (i = 0; i < linecount; i++) {
5063 ln = linebuf[i];
5064 if (dwarf_line_srcfileno(ln, &fn, &de) != DW_DLV_OK)
5065 continue;
5066 if (dwarf_lineno(ln, &lineno, &de) != DW_DLV_OK)
5067 continue;
5068 if (dwarf_lineaddr(ln, &lineaddr, &de) != DW_DLV_OK)
5069 continue;
5070 printf("%-37s %11ju %#18jx\n",
5071 basename(srcfiles[fn - 1]), (uintmax_t) lineno,
5072 (uintmax_t) lineaddr);
5073 }
5074 putchar('\n');
5075 }
5076 }
5077
5078 static void
dump_dwarf_die(struct readelf * re,Dwarf_Die die,int level)5079 dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level)
5080 {
5081 Dwarf_Attribute *attr_list;
5082 Dwarf_Die ret_die;
5083 Dwarf_Off dieoff, cuoff, culen, attroff;
5084 Dwarf_Unsigned ate, lang, v_udata, v_sig;
5085 Dwarf_Signed attr_count, v_sdata;
5086 Dwarf_Off v_off;
5087 Dwarf_Addr v_addr;
5088 Dwarf_Half tag, attr, form;
5089 Dwarf_Block *v_block;
5090 Dwarf_Bool v_bool, is_info;
5091 Dwarf_Sig8 v_sig8;
5092 Dwarf_Error de;
5093 Dwarf_Ptr v_expr;
5094 const char *tag_str, *attr_str, *ate_str, *lang_str;
5095 char unk_tag[32], unk_attr[32];
5096 char *v_str;
5097 uint8_t *b, *p;
5098 int i, j, abc, ret;
5099
5100 if (dwarf_dieoffset(die, &dieoff, &de) != DW_DLV_OK) {
5101 warnx("dwarf_dieoffset failed: %s", dwarf_errmsg(de));
5102 goto cont_search;
5103 }
5104
5105 printf(" <%d><%jx>: ", level, (uintmax_t) dieoff);
5106
5107 if (dwarf_die_CU_offset_range(die, &cuoff, &culen, &de) != DW_DLV_OK) {
5108 warnx("dwarf_die_CU_offset_range failed: %s",
5109 dwarf_errmsg(de));
5110 cuoff = 0;
5111 }
5112
5113 abc = dwarf_die_abbrev_code(die);
5114 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5115 warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5116 goto cont_search;
5117 }
5118 if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5119 snprintf(unk_tag, sizeof(unk_tag), "[Unknown Tag: %#x]", tag);
5120 tag_str = unk_tag;
5121 }
5122
5123 printf("Abbrev Number: %d (%s)\n", abc, tag_str);
5124
5125 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5126 DW_DLV_OK) {
5127 if (ret == DW_DLV_ERROR)
5128 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5129 goto cont_search;
5130 }
5131
5132 for (i = 0; i < attr_count; i++) {
5133 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
5134 warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
5135 continue;
5136 }
5137 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5138 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5139 continue;
5140 }
5141 if (dwarf_get_AT_name(attr, &attr_str) != DW_DLV_OK) {
5142 snprintf(unk_attr, sizeof(unk_attr),
5143 "[Unknown AT: %#x]", attr);
5144 attr_str = unk_attr;
5145 }
5146 if (dwarf_attroffset(attr_list[i], &attroff, &de) !=
5147 DW_DLV_OK) {
5148 warnx("dwarf_attroffset failed: %s", dwarf_errmsg(de));
5149 attroff = 0;
5150 }
5151 printf(" <%jx> %-18s: ", (uintmax_t) attroff, attr_str);
5152 switch (form) {
5153 case DW_FORM_ref_addr:
5154 case DW_FORM_sec_offset:
5155 if (dwarf_global_formref(attr_list[i], &v_off, &de) !=
5156 DW_DLV_OK) {
5157 warnx("dwarf_global_formref failed: %s",
5158 dwarf_errmsg(de));
5159 continue;
5160 }
5161 if (form == DW_FORM_ref_addr)
5162 printf("<0x%jx>", (uintmax_t) v_off);
5163 else
5164 printf("0x%jx", (uintmax_t) v_off);
5165 break;
5166
5167 case DW_FORM_ref1:
5168 case DW_FORM_ref2:
5169 case DW_FORM_ref4:
5170 case DW_FORM_ref8:
5171 case DW_FORM_ref_udata:
5172 if (dwarf_formref(attr_list[i], &v_off, &de) !=
5173 DW_DLV_OK) {
5174 warnx("dwarf_formref failed: %s",
5175 dwarf_errmsg(de));
5176 continue;
5177 }
5178 v_off += cuoff;
5179 printf("<0x%jx>", (uintmax_t) v_off);
5180 break;
5181
5182 case DW_FORM_addr:
5183 if (dwarf_formaddr(attr_list[i], &v_addr, &de) !=
5184 DW_DLV_OK) {
5185 warnx("dwarf_formaddr failed: %s",
5186 dwarf_errmsg(de));
5187 continue;
5188 }
5189 printf("%#jx", (uintmax_t) v_addr);
5190 break;
5191
5192 case DW_FORM_data1:
5193 case DW_FORM_data2:
5194 case DW_FORM_data4:
5195 case DW_FORM_data8:
5196 case DW_FORM_udata:
5197 if (dwarf_formudata(attr_list[i], &v_udata, &de) !=
5198 DW_DLV_OK) {
5199 warnx("dwarf_formudata failed: %s",
5200 dwarf_errmsg(de));
5201 continue;
5202 }
5203 if (attr == DW_AT_high_pc)
5204 printf("0x%jx", (uintmax_t) v_udata);
5205 else
5206 printf("%ju", (uintmax_t) v_udata);
5207 break;
5208
5209 case DW_FORM_sdata:
5210 if (dwarf_formsdata(attr_list[i], &v_sdata, &de) !=
5211 DW_DLV_OK) {
5212 warnx("dwarf_formudata failed: %s",
5213 dwarf_errmsg(de));
5214 continue;
5215 }
5216 printf("%jd", (intmax_t) v_sdata);
5217 break;
5218
5219 case DW_FORM_flag:
5220 if (dwarf_formflag(attr_list[i], &v_bool, &de) !=
5221 DW_DLV_OK) {
5222 warnx("dwarf_formflag failed: %s",
5223 dwarf_errmsg(de));
5224 continue;
5225 }
5226 printf("%jd", (intmax_t) v_bool);
5227 break;
5228
5229 case DW_FORM_flag_present:
5230 putchar('1');
5231 break;
5232
5233 case DW_FORM_string:
5234 case DW_FORM_strp:
5235 if (dwarf_formstring(attr_list[i], &v_str, &de) !=
5236 DW_DLV_OK) {
5237 warnx("dwarf_formstring failed: %s",
5238 dwarf_errmsg(de));
5239 continue;
5240 }
5241 if (form == DW_FORM_string)
5242 printf("%s", v_str);
5243 else
5244 printf("(indirect string) %s", v_str);
5245 break;
5246
5247 case DW_FORM_block:
5248 case DW_FORM_block1:
5249 case DW_FORM_block2:
5250 case DW_FORM_block4:
5251 if (dwarf_formblock(attr_list[i], &v_block, &de) !=
5252 DW_DLV_OK) {
5253 warnx("dwarf_formblock failed: %s",
5254 dwarf_errmsg(de));
5255 continue;
5256 }
5257 printf("%ju byte block:", (uintmax_t) v_block->bl_len);
5258 b = v_block->bl_data;
5259 for (j = 0; (Dwarf_Unsigned) j < v_block->bl_len; j++)
5260 printf(" %x", b[j]);
5261 printf("\t(");
5262 dump_dwarf_block(re, v_block->bl_data, v_block->bl_len);
5263 putchar(')');
5264 break;
5265
5266 case DW_FORM_exprloc:
5267 if (dwarf_formexprloc(attr_list[i], &v_udata, &v_expr,
5268 &de) != DW_DLV_OK) {
5269 warnx("dwarf_formexprloc failed: %s",
5270 dwarf_errmsg(de));
5271 continue;
5272 }
5273 printf("%ju byte block:", (uintmax_t) v_udata);
5274 b = v_expr;
5275 for (j = 0; (Dwarf_Unsigned) j < v_udata; j++)
5276 printf(" %x", b[j]);
5277 printf("\t(");
5278 dump_dwarf_block(re, v_expr, v_udata);
5279 putchar(')');
5280 break;
5281
5282 case DW_FORM_ref_sig8:
5283 if (dwarf_formsig8(attr_list[i], &v_sig8, &de) !=
5284 DW_DLV_OK) {
5285 warnx("dwarf_formsig8 failed: %s",
5286 dwarf_errmsg(de));
5287 continue;
5288 }
5289 p = (uint8_t *)(uintptr_t) &v_sig8.signature[0];
5290 v_sig = re->dw_decode(&p, 8);
5291 printf("signature: 0x%jx", (uintmax_t) v_sig);
5292 }
5293 switch (attr) {
5294 case DW_AT_encoding:
5295 if (dwarf_attrval_unsigned(die, attr, &ate, &de) !=
5296 DW_DLV_OK)
5297 break;
5298 if (dwarf_get_ATE_name(ate, &ate_str) != DW_DLV_OK)
5299 ate_str = "DW_ATE_UNKNOWN";
5300 printf("\t(%s)", &ate_str[strlen("DW_ATE_")]);
5301 break;
5302
5303 case DW_AT_language:
5304 if (dwarf_attrval_unsigned(die, attr, &lang, &de) !=
5305 DW_DLV_OK)
5306 break;
5307 if (dwarf_get_LANG_name(lang, &lang_str) != DW_DLV_OK)
5308 break;
5309 printf("\t(%s)", &lang_str[strlen("DW_LANG_")]);
5310 break;
5311
5312 case DW_AT_location:
5313 case DW_AT_string_length:
5314 case DW_AT_return_addr:
5315 case DW_AT_data_member_location:
5316 case DW_AT_frame_base:
5317 case DW_AT_segment:
5318 case DW_AT_static_link:
5319 case DW_AT_use_location:
5320 case DW_AT_vtable_elem_location:
5321 switch (form) {
5322 case DW_FORM_data4:
5323 case DW_FORM_data8:
5324 case DW_FORM_sec_offset:
5325 printf("\t(location list)");
5326 break;
5327 default:
5328 break;
5329 }
5330
5331 default:
5332 break;
5333 }
5334 putchar('\n');
5335 }
5336
5337
5338 cont_search:
5339 /* Search children. */
5340 ret = dwarf_child(die, &ret_die, &de);
5341 if (ret == DW_DLV_ERROR)
5342 warnx("dwarf_child: %s", dwarf_errmsg(de));
5343 else if (ret == DW_DLV_OK)
5344 dump_dwarf_die(re, ret_die, level + 1);
5345
5346 /* Search sibling. */
5347 is_info = dwarf_get_die_infotypes_flag(die);
5348 ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
5349 if (ret == DW_DLV_ERROR)
5350 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5351 else if (ret == DW_DLV_OK)
5352 dump_dwarf_die(re, ret_die, level);
5353
5354 dwarf_dealloc(re->dbg, die, DW_DLA_DIE);
5355 }
5356
5357 static void
set_cu_context(struct readelf * re,Dwarf_Half psize,Dwarf_Half osize,Dwarf_Half ver)5358 set_cu_context(struct readelf *re, Dwarf_Half psize, Dwarf_Half osize,
5359 Dwarf_Half ver)
5360 {
5361
5362 re->cu_psize = psize;
5363 re->cu_osize = osize;
5364 re->cu_ver = ver;
5365 }
5366
5367 static void
dump_dwarf_info(struct readelf * re,Dwarf_Bool is_info)5368 dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info)
5369 {
5370 struct section *s;
5371 Dwarf_Die die;
5372 Dwarf_Error de;
5373 Dwarf_Half tag, version, pointer_size, off_size;
5374 Dwarf_Off cu_offset, cu_length;
5375 Dwarf_Off aboff;
5376 Dwarf_Unsigned typeoff;
5377 Dwarf_Sig8 sig8;
5378 Dwarf_Unsigned sig;
5379 uint8_t *p;
5380 const char *sn;
5381 int i, ret;
5382
5383 sn = is_info ? ".debug_info" : ".debug_types";
5384
5385 s = NULL;
5386 for (i = 0; (size_t) i < re->shnum; i++) {
5387 s = &re->sl[i];
5388 if (s->name != NULL && !strcmp(s->name, sn))
5389 break;
5390 }
5391 if ((size_t) i >= re->shnum)
5392 return;
5393
5394 do {
5395 printf("\nDump of debug contents of section %s:\n", sn);
5396
5397 while ((ret = dwarf_next_cu_header_c(re->dbg, is_info, NULL,
5398 &version, &aboff, &pointer_size, &off_size, NULL, &sig8,
5399 &typeoff, NULL, &de)) == DW_DLV_OK) {
5400 set_cu_context(re, pointer_size, off_size, version);
5401 die = NULL;
5402 while (dwarf_siblingof_b(re->dbg, die, &die, is_info,
5403 &de) == DW_DLV_OK) {
5404 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5405 warnx("dwarf_tag failed: %s",
5406 dwarf_errmsg(de));
5407 continue;
5408 }
5409 /* XXX: What about DW_TAG_partial_unit? */
5410 if ((is_info && tag == DW_TAG_compile_unit) ||
5411 (!is_info && tag == DW_TAG_type_unit))
5412 break;
5413 }
5414 if (die == NULL && is_info) {
5415 warnx("could not find DW_TAG_compile_unit "
5416 "die");
5417 continue;
5418 } else if (die == NULL && !is_info) {
5419 warnx("could not find DW_TAG_type_unit die");
5420 continue;
5421 }
5422
5423 if (dwarf_die_CU_offset_range(die, &cu_offset,
5424 &cu_length, &de) != DW_DLV_OK) {
5425 warnx("dwarf_die_CU_offset failed: %s",
5426 dwarf_errmsg(de));
5427 continue;
5428 }
5429
5430 cu_length -= off_size == 4 ? 4 : 12;
5431
5432 sig = 0;
5433 if (!is_info) {
5434 p = (uint8_t *)(uintptr_t) &sig8.signature[0];
5435 sig = re->dw_decode(&p, 8);
5436 }
5437
5438 printf("\n Type Unit @ offset 0x%jx:\n",
5439 (uintmax_t) cu_offset);
5440 printf(" Length:\t\t%#jx (%d-bit)\n",
5441 (uintmax_t) cu_length, off_size == 4 ? 32 : 64);
5442 printf(" Version:\t\t%u\n", version);
5443 printf(" Abbrev Offset:\t0x%jx\n",
5444 (uintmax_t) aboff);
5445 printf(" Pointer Size:\t%u\n", pointer_size);
5446 if (!is_info) {
5447 printf(" Signature:\t\t0x%016jx\n",
5448 (uintmax_t) sig);
5449 printf(" Type Offset:\t0x%jx\n",
5450 (uintmax_t) typeoff);
5451 }
5452
5453 dump_dwarf_die(re, die, 0);
5454 }
5455 if (ret == DW_DLV_ERROR)
5456 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5457 if (is_info)
5458 break;
5459 } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
5460 }
5461
5462 static void
dump_dwarf_abbrev(struct readelf * re)5463 dump_dwarf_abbrev(struct readelf *re)
5464 {
5465 Dwarf_Abbrev ab;
5466 Dwarf_Off aboff, atoff;
5467 Dwarf_Unsigned length, attr_count;
5468 Dwarf_Signed flag, form;
5469 Dwarf_Half tag, attr;
5470 Dwarf_Error de;
5471 const char *tag_str, *attr_str, *form_str;
5472 char unk_tag[32], unk_attr[32], unk_form[32];
5473 int i, j, ret;
5474
5475 printf("\nContents of section .debug_abbrev:\n\n");
5476
5477 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, &aboff,
5478 NULL, NULL, &de)) == DW_DLV_OK) {
5479 printf(" Number TAG\n");
5480 i = 0;
5481 while ((ret = dwarf_get_abbrev(re->dbg, aboff, &ab, &length,
5482 &attr_count, &de)) == DW_DLV_OK) {
5483 if (length == 1) {
5484 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5485 break;
5486 }
5487 aboff += length;
5488 printf("%4d", ++i);
5489 if (dwarf_get_abbrev_tag(ab, &tag, &de) != DW_DLV_OK) {
5490 warnx("dwarf_get_abbrev_tag failed: %s",
5491 dwarf_errmsg(de));
5492 goto next_abbrev;
5493 }
5494 if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) {
5495 snprintf(unk_tag, sizeof(unk_tag),
5496 "[Unknown Tag: %#x]", tag);
5497 tag_str = unk_tag;
5498 }
5499 if (dwarf_get_abbrev_children_flag(ab, &flag, &de) !=
5500 DW_DLV_OK) {
5501 warnx("dwarf_get_abbrev_children_flag failed:"
5502 " %s", dwarf_errmsg(de));
5503 goto next_abbrev;
5504 }
5505 printf(" %s %s\n", tag_str,
5506 flag ? "[has children]" : "[no children]");
5507 for (j = 0; (Dwarf_Unsigned) j < attr_count; j++) {
5508 if (dwarf_get_abbrev_entry(ab, (Dwarf_Signed) j,
5509 &attr, &form, &atoff, &de) != DW_DLV_OK) {
5510 warnx("dwarf_get_abbrev_entry failed:"
5511 " %s", dwarf_errmsg(de));
5512 continue;
5513 }
5514 if (dwarf_get_AT_name(attr, &attr_str) !=
5515 DW_DLV_OK) {
5516 snprintf(unk_attr, sizeof(unk_attr),
5517 "[Unknown AT: %#x]", attr);
5518 attr_str = unk_attr;
5519 }
5520 if (dwarf_get_FORM_name(form, &form_str) !=
5521 DW_DLV_OK) {
5522 snprintf(unk_form, sizeof(unk_form),
5523 "[Unknown Form: %#x]",
5524 (Dwarf_Half) form);
5525 form_str = unk_form;
5526 }
5527 printf(" %-18s %s\n", attr_str, form_str);
5528 }
5529 next_abbrev:
5530 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV);
5531 }
5532 if (ret != DW_DLV_OK)
5533 warnx("dwarf_get_abbrev: %s", dwarf_errmsg(de));
5534 }
5535 if (ret == DW_DLV_ERROR)
5536 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
5537 }
5538
5539 static void
dump_dwarf_pubnames(struct readelf * re)5540 dump_dwarf_pubnames(struct readelf *re)
5541 {
5542 struct section *s;
5543 Dwarf_Off die_off;
5544 Dwarf_Unsigned offset, length, nt_cu_offset, nt_cu_length;
5545 Dwarf_Signed cnt;
5546 Dwarf_Global *globs;
5547 Dwarf_Half nt_version;
5548 Dwarf_Error de;
5549 Elf_Data *d;
5550 char *glob_name;
5551 int i, dwarf_size, elferr;
5552
5553 printf("\nContents of the .debug_pubnames section:\n");
5554
5555 s = NULL;
5556 for (i = 0; (size_t) i < re->shnum; i++) {
5557 s = &re->sl[i];
5558 if (s->name != NULL && !strcmp(s->name, ".debug_pubnames"))
5559 break;
5560 }
5561 if ((size_t) i >= re->shnum)
5562 return;
5563
5564 (void) elf_errno();
5565 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5566 elferr = elf_errno();
5567 if (elferr != 0)
5568 warnx("elf_getdata failed: %s", elf_errmsg(-1));
5569 return;
5570 }
5571 if (d->d_size <= 0)
5572 return;
5573
5574 /* Read in .debug_pubnames section table header. */
5575 offset = 0;
5576 length = re->dw_read(d, &offset, 4);
5577 if (length == 0xffffffff) {
5578 dwarf_size = 8;
5579 length = re->dw_read(d, &offset, 8);
5580 } else
5581 dwarf_size = 4;
5582
5583 if (length > d->d_size - offset) {
5584 warnx("invalid .dwarf_pubnames section");
5585 return;
5586 }
5587
5588 nt_version = re->dw_read(d, &offset, 2);
5589 nt_cu_offset = re->dw_read(d, &offset, dwarf_size);
5590 nt_cu_length = re->dw_read(d, &offset, dwarf_size);
5591 printf(" Length:\t\t\t\t%ju\n", (uintmax_t) length);
5592 printf(" Version:\t\t\t\t%u\n", nt_version);
5593 printf(" Offset into .debug_info section:\t%ju\n",
5594 (uintmax_t) nt_cu_offset);
5595 printf(" Size of area in .debug_info section:\t%ju\n",
5596 (uintmax_t) nt_cu_length);
5597
5598 if (dwarf_get_globals(re->dbg, &globs, &cnt, &de) != DW_DLV_OK) {
5599 warnx("dwarf_get_globals failed: %s", dwarf_errmsg(de));
5600 return;
5601 }
5602
5603 printf("\n Offset Name\n");
5604 for (i = 0; i < cnt; i++) {
5605 if (dwarf_globname(globs[i], &glob_name, &de) != DW_DLV_OK) {
5606 warnx("dwarf_globname failed: %s", dwarf_errmsg(de));
5607 continue;
5608 }
5609 if (dwarf_global_die_offset(globs[i], &die_off, &de) !=
5610 DW_DLV_OK) {
5611 warnx("dwarf_global_die_offset failed: %s",
5612 dwarf_errmsg(de));
5613 continue;
5614 }
5615 printf(" %-11ju %s\n", (uintmax_t) die_off, glob_name);
5616 }
5617 }
5618
5619 static void
dump_dwarf_aranges(struct readelf * re)5620 dump_dwarf_aranges(struct readelf *re)
5621 {
5622 struct section *s;
5623 Dwarf_Arange *aranges;
5624 Dwarf_Addr start;
5625 Dwarf_Unsigned offset, length, as_cu_offset;
5626 Dwarf_Off die_off;
5627 Dwarf_Signed cnt;
5628 Dwarf_Half as_version, as_addrsz, as_segsz;
5629 Dwarf_Error de;
5630 Elf_Data *d;
5631 int i, dwarf_size, elferr;
5632
5633 printf("\nContents of section .debug_aranges:\n");
5634
5635 s = NULL;
5636 for (i = 0; (size_t) i < re->shnum; i++) {
5637 s = &re->sl[i];
5638 if (s->name != NULL && !strcmp(s->name, ".debug_aranges"))
5639 break;
5640 }
5641 if ((size_t) i >= re->shnum)
5642 return;
5643
5644 (void) elf_errno();
5645 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
5646 elferr = elf_errno();
5647 if (elferr != 0)
5648 warnx("elf_getdata failed: %s", elf_errmsg(-1));
5649 return;
5650 }
5651 if (d->d_size <= 0)
5652 return;
5653
5654 /* Read in the .debug_aranges section table header. */
5655 offset = 0;
5656 length = re->dw_read(d, &offset, 4);
5657 if (length == 0xffffffff) {
5658 dwarf_size = 8;
5659 length = re->dw_read(d, &offset, 8);
5660 } else
5661 dwarf_size = 4;
5662
5663 if (length > d->d_size - offset) {
5664 warnx("invalid .dwarf_aranges section");
5665 return;
5666 }
5667
5668 as_version = re->dw_read(d, &offset, 2);
5669 as_cu_offset = re->dw_read(d, &offset, dwarf_size);
5670 as_addrsz = re->dw_read(d, &offset, 1);
5671 as_segsz = re->dw_read(d, &offset, 1);
5672
5673 printf(" Length:\t\t\t%ju\n", (uintmax_t) length);
5674 printf(" Version:\t\t\t%u\n", as_version);
5675 printf(" Offset into .debug_info:\t%ju\n", (uintmax_t) as_cu_offset);
5676 printf(" Pointer Size:\t\t\t%u\n", as_addrsz);
5677 printf(" Segment Size:\t\t\t%u\n", as_segsz);
5678
5679 if (dwarf_get_aranges(re->dbg, &aranges, &cnt, &de) != DW_DLV_OK) {
5680 warnx("dwarf_get_aranges failed: %s", dwarf_errmsg(de));
5681 return;
5682 }
5683
5684 printf("\n Address Length\n");
5685 for (i = 0; i < cnt; i++) {
5686 if (dwarf_get_arange_info(aranges[i], &start, &length,
5687 &die_off, &de) != DW_DLV_OK) {
5688 warnx("dwarf_get_arange_info failed: %s",
5689 dwarf_errmsg(de));
5690 continue;
5691 }
5692 printf(" %08jx %ju\n", (uintmax_t) start,
5693 (uintmax_t) length);
5694 }
5695 }
5696
5697 static void
dump_dwarf_ranges_foreach(struct readelf * re,Dwarf_Die die,Dwarf_Addr base)5698 dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die, Dwarf_Addr base)
5699 {
5700 Dwarf_Attribute *attr_list;
5701 Dwarf_Ranges *ranges;
5702 Dwarf_Die ret_die;
5703 Dwarf_Error de;
5704 Dwarf_Addr base0;
5705 Dwarf_Half attr;
5706 Dwarf_Signed attr_count, cnt;
5707 Dwarf_Unsigned off, bytecnt;
5708 int i, j, ret;
5709
5710 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
5711 DW_DLV_OK) {
5712 if (ret == DW_DLV_ERROR)
5713 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
5714 goto cont_search;
5715 }
5716
5717 for (i = 0; i < attr_count; i++) {
5718 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
5719 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
5720 continue;
5721 }
5722 if (attr != DW_AT_ranges)
5723 continue;
5724 if (dwarf_formudata(attr_list[i], &off, &de) != DW_DLV_OK) {
5725 warnx("dwarf_formudata failed: %s", dwarf_errmsg(de));
5726 continue;
5727 }
5728 if (dwarf_get_ranges(re->dbg, (Dwarf_Off) off, &ranges, &cnt,
5729 &bytecnt, &de) != DW_DLV_OK)
5730 continue;
5731 base0 = base;
5732 for (j = 0; j < cnt; j++) {
5733 printf(" %08jx ", (uintmax_t) off);
5734 if (ranges[j].dwr_type == DW_RANGES_END) {
5735 printf("%s\n", "<End of list>");
5736 continue;
5737 } else if (ranges[j].dwr_type ==
5738 DW_RANGES_ADDRESS_SELECTION) {
5739 base0 = ranges[j].dwr_addr2;
5740 continue;
5741 }
5742 if (re->ec == ELFCLASS32)
5743 printf("%08jx %08jx\n",
5744 (uintmax_t) (ranges[j].dwr_addr1 + base0),
5745 (uintmax_t) (ranges[j].dwr_addr2 + base0));
5746 else
5747 printf("%016jx %016jx\n",
5748 (uintmax_t) (ranges[j].dwr_addr1 + base0),
5749 (uintmax_t) (ranges[j].dwr_addr2 + base0));
5750 }
5751 }
5752
5753 cont_search:
5754 /* Search children. */
5755 ret = dwarf_child(die, &ret_die, &de);
5756 if (ret == DW_DLV_ERROR)
5757 warnx("dwarf_child: %s", dwarf_errmsg(de));
5758 else if (ret == DW_DLV_OK)
5759 dump_dwarf_ranges_foreach(re, ret_die, base);
5760
5761 /* Search sibling. */
5762 ret = dwarf_siblingof(re->dbg, die, &ret_die, &de);
5763 if (ret == DW_DLV_ERROR)
5764 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
5765 else if (ret == DW_DLV_OK)
5766 dump_dwarf_ranges_foreach(re, ret_die, base);
5767 }
5768
5769 static void
dump_dwarf_ranges(struct readelf * re)5770 dump_dwarf_ranges(struct readelf *re)
5771 {
5772 Dwarf_Ranges *ranges;
5773 Dwarf_Die die;
5774 Dwarf_Signed cnt;
5775 Dwarf_Unsigned bytecnt;
5776 Dwarf_Half tag;
5777 Dwarf_Error de;
5778 Dwarf_Unsigned lowpc;
5779 int ret;
5780
5781 if (dwarf_get_ranges(re->dbg, 0, &ranges, &cnt, &bytecnt, &de) !=
5782 DW_DLV_OK)
5783 return;
5784
5785 printf("Contents of the .debug_ranges section:\n\n");
5786 if (re->ec == ELFCLASS32)
5787 printf(" %-8s %-8s %s\n", "Offset", "Begin", "End");
5788 else
5789 printf(" %-8s %-16s %s\n", "Offset", "Begin", "End");
5790
5791 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL,
5792 NULL, &de)) == DW_DLV_OK) {
5793 die = NULL;
5794 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
5795 continue;
5796 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
5797 warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
5798 continue;
5799 }
5800 /* XXX: What about DW_TAG_partial_unit? */
5801 lowpc = 0;
5802 if (tag == DW_TAG_compile_unit) {
5803 if (dwarf_attrval_unsigned(die, DW_AT_low_pc, &lowpc,
5804 &de) != DW_DLV_OK)
5805 lowpc = 0;
5806 }
5807
5808 dump_dwarf_ranges_foreach(re, die, (Dwarf_Addr) lowpc);
5809 }
5810 putchar('\n');
5811 }
5812
5813 static void
dump_dwarf_macinfo(struct readelf * re)5814 dump_dwarf_macinfo(struct readelf *re)
5815 {
5816 Dwarf_Unsigned offset;
5817 Dwarf_Signed cnt;
5818 Dwarf_Macro_Details *md;
5819 Dwarf_Error de;
5820 const char *mi_str;
5821 char unk_mi[32];
5822 int i;
5823
5824 #define _MAX_MACINFO_ENTRY 65535
5825
5826 printf("\nContents of section .debug_macinfo:\n\n");
5827
5828 offset = 0;
5829 while (dwarf_get_macro_details(re->dbg, offset, _MAX_MACINFO_ENTRY,
5830 &cnt, &md, &de) == DW_DLV_OK) {
5831 for (i = 0; i < cnt; i++) {
5832 offset = md[i].dmd_offset + 1;
5833 if (md[i].dmd_type == 0)
5834 break;
5835 if (dwarf_get_MACINFO_name(md[i].dmd_type, &mi_str) !=
5836 DW_DLV_OK) {
5837 snprintf(unk_mi, sizeof(unk_mi),
5838 "[Unknown MACINFO: %#x]", md[i].dmd_type);
5839 mi_str = unk_mi;
5840 }
5841 printf(" %s", mi_str);
5842 switch (md[i].dmd_type) {
5843 case DW_MACINFO_define:
5844 case DW_MACINFO_undef:
5845 printf(" - lineno : %jd macro : %s\n",
5846 (intmax_t) md[i].dmd_lineno,
5847 md[i].dmd_macro);
5848 break;
5849 case DW_MACINFO_start_file:
5850 printf(" - lineno : %jd filenum : %jd\n",
5851 (intmax_t) md[i].dmd_lineno,
5852 (intmax_t) md[i].dmd_fileindex);
5853 break;
5854 default:
5855 putchar('\n');
5856 break;
5857 }
5858 }
5859 }
5860
5861 #undef _MAX_MACINFO_ENTRY
5862 }
5863
5864 static void
dump_dwarf_frame_inst(struct readelf * re,Dwarf_Cie cie,uint8_t * insts,Dwarf_Unsigned len,Dwarf_Unsigned caf,Dwarf_Signed daf,Dwarf_Addr pc,Dwarf_Debug dbg)5865 dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie, uint8_t *insts,
5866 Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf, Dwarf_Addr pc,
5867 Dwarf_Debug dbg)
5868 {
5869 Dwarf_Frame_Op *oplist;
5870 Dwarf_Signed opcnt, delta;
5871 Dwarf_Small op;
5872 Dwarf_Error de;
5873 const char *op_str;
5874 char unk_op[32];
5875 int i;
5876
5877 if (dwarf_expand_frame_instructions(cie, insts, len, &oplist,
5878 &opcnt, &de) != DW_DLV_OK) {
5879 warnx("dwarf_expand_frame_instructions failed: %s",
5880 dwarf_errmsg(de));
5881 return;
5882 }
5883
5884 for (i = 0; i < opcnt; i++) {
5885 if (oplist[i].fp_base_op != 0)
5886 op = oplist[i].fp_base_op << 6;
5887 else
5888 op = oplist[i].fp_extended_op;
5889 if (dwarf_get_CFA_name(op, &op_str) != DW_DLV_OK) {
5890 snprintf(unk_op, sizeof(unk_op), "[Unknown CFA: %#x]",
5891 op);
5892 op_str = unk_op;
5893 }
5894 printf(" %s", op_str);
5895 switch (op) {
5896 case DW_CFA_advance_loc:
5897 delta = oplist[i].fp_offset * caf;
5898 pc += delta;
5899 printf(": %ju to %08jx", (uintmax_t) delta,
5900 (uintmax_t) pc);
5901 break;
5902 case DW_CFA_offset:
5903 case DW_CFA_offset_extended:
5904 case DW_CFA_offset_extended_sf:
5905 delta = oplist[i].fp_offset * daf;
5906 printf(": r%u (%s) at cfa%+jd", oplist[i].fp_register,
5907 dwarf_regname(re, oplist[i].fp_register),
5908 (intmax_t) delta);
5909 break;
5910 case DW_CFA_restore:
5911 printf(": r%u (%s)", oplist[i].fp_register,
5912 dwarf_regname(re, oplist[i].fp_register));
5913 break;
5914 case DW_CFA_set_loc:
5915 pc = oplist[i].fp_offset;
5916 printf(": to %08jx", (uintmax_t) pc);
5917 break;
5918 case DW_CFA_advance_loc1:
5919 case DW_CFA_advance_loc2:
5920 case DW_CFA_advance_loc4:
5921 pc += oplist[i].fp_offset;
5922 printf(": %jd to %08jx", (intmax_t) oplist[i].fp_offset,
5923 (uintmax_t) pc);
5924 break;
5925 case DW_CFA_def_cfa:
5926 printf(": r%u (%s) ofs %ju", oplist[i].fp_register,
5927 dwarf_regname(re, oplist[i].fp_register),
5928 (uintmax_t) oplist[i].fp_offset);
5929 break;
5930 case DW_CFA_def_cfa_sf:
5931 printf(": r%u (%s) ofs %jd", oplist[i].fp_register,
5932 dwarf_regname(re, oplist[i].fp_register),
5933 (intmax_t) (oplist[i].fp_offset * daf));
5934 break;
5935 case DW_CFA_def_cfa_register:
5936 printf(": r%u (%s)", oplist[i].fp_register,
5937 dwarf_regname(re, oplist[i].fp_register));
5938 break;
5939 case DW_CFA_def_cfa_offset:
5940 printf(": %ju", (uintmax_t) oplist[i].fp_offset);
5941 break;
5942 case DW_CFA_def_cfa_offset_sf:
5943 printf(": %jd", (intmax_t) (oplist[i].fp_offset * daf));
5944 break;
5945 default:
5946 break;
5947 }
5948 putchar('\n');
5949 }
5950
5951 dwarf_dealloc(dbg, oplist, DW_DLA_FRAME_BLOCK);
5952 }
5953
5954 static char *
get_regoff_str(struct readelf * re,Dwarf_Half reg,Dwarf_Addr off)5955 get_regoff_str(struct readelf *re, Dwarf_Half reg, Dwarf_Addr off)
5956 {
5957 static char rs[16];
5958
5959 if (reg == DW_FRAME_UNDEFINED_VAL || reg == DW_FRAME_REG_INITIAL_VALUE)
5960 snprintf(rs, sizeof(rs), "%c", 'u');
5961 else if (reg == DW_FRAME_CFA_COL)
5962 snprintf(rs, sizeof(rs), "c%+jd", (intmax_t) off);
5963 else
5964 snprintf(rs, sizeof(rs), "%s%+jd", dwarf_regname(re, reg),
5965 (intmax_t) off);
5966
5967 return (rs);
5968 }
5969
5970 static int
dump_dwarf_frame_regtable(struct readelf * re,Dwarf_Fde fde,Dwarf_Addr pc,Dwarf_Unsigned func_len,Dwarf_Half cie_ra)5971 dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde, Dwarf_Addr pc,
5972 Dwarf_Unsigned func_len, Dwarf_Half cie_ra)
5973 {
5974 Dwarf_Regtable rt;
5975 Dwarf_Addr row_pc, end_pc, pre_pc, cur_pc;
5976 Dwarf_Error de;
5977 char *vec;
5978 int i;
5979
5980 #define BIT_SET(v, n) (v[(n)>>3] |= 1U << ((n) & 7))
5981 #define BIT_CLR(v, n) (v[(n)>>3] &= ~(1U << ((n) & 7)))
5982 #define BIT_ISSET(v, n) (v[(n)>>3] & (1U << ((n) & 7)))
5983 #define RT(x) rt.rules[(x)]
5984
5985 vec = calloc((DW_REG_TABLE_SIZE + 7) / 8, 1);
5986 if (vec == NULL)
5987 err(EXIT_FAILURE, "calloc failed");
5988
5989 pre_pc = ~((Dwarf_Addr) 0);
5990 cur_pc = pc;
5991 end_pc = pc + func_len;
5992 for (; cur_pc < end_pc; cur_pc++) {
5993 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
5994 &de) != DW_DLV_OK) {
5995 warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
5996 dwarf_errmsg(de));
5997 return (-1);
5998 }
5999 if (row_pc == pre_pc)
6000 continue;
6001 pre_pc = row_pc;
6002 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
6003 if (rt.rules[i].dw_regnum != DW_FRAME_REG_INITIAL_VALUE)
6004 BIT_SET(vec, i);
6005 }
6006 }
6007
6008 printf(" LOC CFA ");
6009 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
6010 if (BIT_ISSET(vec, i)) {
6011 if ((Dwarf_Half) i == cie_ra)
6012 printf("ra ");
6013 else
6014 printf("%-5s",
6015 dwarf_regname(re, (unsigned int) i));
6016 }
6017 }
6018 putchar('\n');
6019
6020 pre_pc = ~((Dwarf_Addr) 0);
6021 cur_pc = pc;
6022 end_pc = pc + func_len;
6023 for (; cur_pc < end_pc; cur_pc++) {
6024 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc,
6025 &de) != DW_DLV_OK) {
6026 warnx("dwarf_get_fde_info_for_all_regs failed: %s\n",
6027 dwarf_errmsg(de));
6028 return (-1);
6029 }
6030 if (row_pc == pre_pc)
6031 continue;
6032 pre_pc = row_pc;
6033 printf("%08jx ", (uintmax_t) row_pc);
6034 printf("%-8s ", get_regoff_str(re, RT(0).dw_regnum,
6035 RT(0).dw_offset));
6036 for (i = 1; i < DW_REG_TABLE_SIZE; i++) {
6037 if (BIT_ISSET(vec, i)) {
6038 printf("%-5s", get_regoff_str(re,
6039 RT(i).dw_regnum, RT(i).dw_offset));
6040 }
6041 }
6042 putchar('\n');
6043 }
6044
6045 free(vec);
6046
6047 return (0);
6048
6049 #undef BIT_SET
6050 #undef BIT_CLR
6051 #undef BIT_ISSET
6052 #undef RT
6053 }
6054
6055 static void
dump_dwarf_frame_section(struct readelf * re,struct section * s,int alt)6056 dump_dwarf_frame_section(struct readelf *re, struct section *s, int alt)
6057 {
6058 Dwarf_Cie *cie_list, cie, pre_cie;
6059 Dwarf_Fde *fde_list, fde;
6060 Dwarf_Off cie_offset, fde_offset;
6061 Dwarf_Unsigned cie_length, fde_instlen;
6062 Dwarf_Unsigned cie_caf, cie_daf, cie_instlen, func_len, fde_length;
6063 Dwarf_Signed cie_count, fde_count, cie_index;
6064 Dwarf_Addr low_pc;
6065 Dwarf_Half cie_ra;
6066 Dwarf_Small cie_version;
6067 Dwarf_Ptr fde_addr, fde_inst, cie_inst;
6068 char *cie_aug, c;
6069 int i, eh_frame;
6070 Dwarf_Error de;
6071
6072 printf("\nThe section %s contains:\n\n", s->name);
6073
6074 if (!strcmp(s->name, ".debug_frame")) {
6075 eh_frame = 0;
6076 if (dwarf_get_fde_list(re->dbg, &cie_list, &cie_count,
6077 &fde_list, &fde_count, &de) != DW_DLV_OK) {
6078 warnx("dwarf_get_fde_list failed: %s",
6079 dwarf_errmsg(de));
6080 return;
6081 }
6082 } else if (!strcmp(s->name, ".eh_frame")) {
6083 eh_frame = 1;
6084 if (dwarf_get_fde_list_eh(re->dbg, &cie_list, &cie_count,
6085 &fde_list, &fde_count, &de) != DW_DLV_OK) {
6086 warnx("dwarf_get_fde_list_eh failed: %s",
6087 dwarf_errmsg(de));
6088 return;
6089 }
6090 } else
6091 return;
6092
6093 pre_cie = NULL;
6094 for (i = 0; i < fde_count; i++) {
6095 if (dwarf_get_fde_n(fde_list, i, &fde, &de) != DW_DLV_OK) {
6096 warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
6097 continue;
6098 }
6099 if (dwarf_get_cie_of_fde(fde, &cie, &de) != DW_DLV_OK) {
6100 warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de));
6101 continue;
6102 }
6103 if (dwarf_get_fde_range(fde, &low_pc, &func_len, &fde_addr,
6104 &fde_length, &cie_offset, &cie_index, &fde_offset,
6105 &de) != DW_DLV_OK) {
6106 warnx("dwarf_get_fde_range failed: %s",
6107 dwarf_errmsg(de));
6108 continue;
6109 }
6110 if (dwarf_get_fde_instr_bytes(fde, &fde_inst, &fde_instlen,
6111 &de) != DW_DLV_OK) {
6112 warnx("dwarf_get_fde_instr_bytes failed: %s",
6113 dwarf_errmsg(de));
6114 continue;
6115 }
6116 if (pre_cie == NULL || cie != pre_cie) {
6117 pre_cie = cie;
6118 if (dwarf_get_cie_info(cie, &cie_length, &cie_version,
6119 &cie_aug, &cie_caf, &cie_daf, &cie_ra,
6120 &cie_inst, &cie_instlen, &de) != DW_DLV_OK) {
6121 warnx("dwarf_get_cie_info failed: %s",
6122 dwarf_errmsg(de));
6123 continue;
6124 }
6125 printf("%08jx %08jx %8.8jx CIE",
6126 (uintmax_t) cie_offset,
6127 (uintmax_t) cie_length,
6128 (uintmax_t) (eh_frame ? 0 : ~0U));
6129 if (!alt) {
6130 putchar('\n');
6131 printf(" Version:\t\t\t%u\n", cie_version);
6132 printf(" Augmentation:\t\t\t\"");
6133 while ((c = *cie_aug++) != '\0')
6134 putchar(c);
6135 printf("\"\n");
6136 printf(" Code alignment factor:\t%ju\n",
6137 (uintmax_t) cie_caf);
6138 printf(" Data alignment factor:\t%jd\n",
6139 (intmax_t) cie_daf);
6140 printf(" Return address column:\t%ju\n",
6141 (uintmax_t) cie_ra);
6142 putchar('\n');
6143 dump_dwarf_frame_inst(re, cie, cie_inst,
6144 cie_instlen, cie_caf, cie_daf, 0,
6145 re->dbg);
6146 putchar('\n');
6147 } else {
6148 printf(" \"");
6149 while ((c = *cie_aug++) != '\0')
6150 putchar(c);
6151 putchar('"');
6152 printf(" cf=%ju df=%jd ra=%ju\n",
6153 (uintmax_t) cie_caf,
6154 (uintmax_t) cie_daf,
6155 (uintmax_t) cie_ra);
6156 dump_dwarf_frame_regtable(re, fde, low_pc, 1,
6157 cie_ra);
6158 putchar('\n');
6159 }
6160 }
6161 printf("%08jx %08jx %08jx FDE cie=%08jx pc=%08jx..%08jx\n",
6162 (uintmax_t) fde_offset, (uintmax_t) fde_length,
6163 (uintmax_t) cie_offset,
6164 (uintmax_t) (eh_frame ? fde_offset + 4 - cie_offset :
6165 cie_offset),
6166 (uintmax_t) low_pc, (uintmax_t) (low_pc + func_len));
6167 if (!alt)
6168 dump_dwarf_frame_inst(re, cie, fde_inst, fde_instlen,
6169 cie_caf, cie_daf, low_pc, re->dbg);
6170 else
6171 dump_dwarf_frame_regtable(re, fde, low_pc, func_len,
6172 cie_ra);
6173 putchar('\n');
6174 }
6175 }
6176
6177 static void
dump_dwarf_frame(struct readelf * re,int alt)6178 dump_dwarf_frame(struct readelf *re, int alt)
6179 {
6180 struct section *s;
6181 int i;
6182
6183 (void) dwarf_set_frame_cfa_value(re->dbg, DW_FRAME_CFA_COL);
6184
6185 for (i = 0; (size_t) i < re->shnum; i++) {
6186 s = &re->sl[i];
6187 if (s->name != NULL && (!strcmp(s->name, ".debug_frame") ||
6188 !strcmp(s->name, ".eh_frame")))
6189 dump_dwarf_frame_section(re, s, alt);
6190 }
6191 }
6192
6193 static void
dump_dwarf_str(struct readelf * re)6194 dump_dwarf_str(struct readelf *re)
6195 {
6196 struct section *s;
6197 Elf_Data *d;
6198 unsigned char *p;
6199 int elferr, end, i, j;
6200
6201 printf("\nContents of section .debug_str:\n");
6202
6203 s = NULL;
6204 for (i = 0; (size_t) i < re->shnum; i++) {
6205 s = &re->sl[i];
6206 if (s->name != NULL && !strcmp(s->name, ".debug_str"))
6207 break;
6208 }
6209 if ((size_t) i >= re->shnum)
6210 return;
6211
6212 (void) elf_errno();
6213 if ((d = elf_getdata(s->scn, NULL)) == NULL) {
6214 elferr = elf_errno();
6215 if (elferr != 0)
6216 warnx("elf_getdata failed: %s", elf_errmsg(-1));
6217 return;
6218 }
6219 if (d->d_size <= 0)
6220 return;
6221
6222 for (i = 0, p = d->d_buf; (size_t) i < d->d_size; i += 16) {
6223 printf(" 0x%08x", (unsigned int) i);
6224 if ((size_t) i + 16 > d->d_size)
6225 end = d->d_size;
6226 else
6227 end = i + 16;
6228 for (j = i; j < i + 16; j++) {
6229 if ((j - i) % 4 == 0)
6230 putchar(' ');
6231 if (j >= end) {
6232 printf(" ");
6233 continue;
6234 }
6235 printf("%02x", (uint8_t) p[j]);
6236 }
6237 putchar(' ');
6238 for (j = i; j < end; j++) {
6239 if (isprint(p[j]))
6240 putchar(p[j]);
6241 else if (p[j] == 0)
6242 putchar('.');
6243 else
6244 putchar(' ');
6245 }
6246 putchar('\n');
6247 }
6248 }
6249
6250 struct loc_at {
6251 Dwarf_Attribute la_at;
6252 Dwarf_Unsigned la_off;
6253 Dwarf_Unsigned la_lowpc;
6254 Dwarf_Half la_cu_psize;
6255 Dwarf_Half la_cu_osize;
6256 Dwarf_Half la_cu_ver;
6257 TAILQ_ENTRY(loc_at) la_next;
6258 };
6259
6260 static TAILQ_HEAD(, loc_at) lalist = TAILQ_HEAD_INITIALIZER(lalist);
6261
6262 static void
search_loclist_at(struct readelf * re,Dwarf_Die die,Dwarf_Unsigned lowpc)6263 search_loclist_at(struct readelf *re, Dwarf_Die die, Dwarf_Unsigned lowpc)
6264 {
6265 Dwarf_Attribute *attr_list;
6266 Dwarf_Die ret_die;
6267 Dwarf_Unsigned off;
6268 Dwarf_Off ref;
6269 Dwarf_Signed attr_count;
6270 Dwarf_Half attr, form;
6271 Dwarf_Bool is_info;
6272 Dwarf_Error de;
6273 struct loc_at *la, *nla;
6274 int i, ret;
6275
6276 is_info = dwarf_get_die_infotypes_flag(die);
6277
6278 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) !=
6279 DW_DLV_OK) {
6280 if (ret == DW_DLV_ERROR)
6281 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de));
6282 goto cont_search;
6283 }
6284 for (i = 0; i < attr_count; i++) {
6285 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) {
6286 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de));
6287 continue;
6288 }
6289 if (attr != DW_AT_location &&
6290 attr != DW_AT_string_length &&
6291 attr != DW_AT_return_addr &&
6292 attr != DW_AT_data_member_location &&
6293 attr != DW_AT_frame_base &&
6294 attr != DW_AT_segment &&
6295 attr != DW_AT_static_link &&
6296 attr != DW_AT_use_location &&
6297 attr != DW_AT_vtable_elem_location)
6298 continue;
6299 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) {
6300 warnx("dwarf_whatform failed: %s", dwarf_errmsg(de));
6301 continue;
6302 }
6303 if (form == DW_FORM_data4 || form == DW_FORM_data8) {
6304 if (dwarf_formudata(attr_list[i], &off, &de) !=
6305 DW_DLV_OK) {
6306 warnx("dwarf_formudata failed: %s",
6307 dwarf_errmsg(de));
6308 continue;
6309 }
6310 } else if (form == DW_FORM_sec_offset) {
6311 if (dwarf_global_formref(attr_list[i], &ref, &de) !=
6312 DW_DLV_OK) {
6313 warnx("dwarf_global_formref failed: %s",
6314 dwarf_errmsg(de));
6315 continue;
6316 }
6317 off = ref;
6318 } else
6319 continue;
6320
6321 TAILQ_FOREACH(la, &lalist, la_next) {
6322 if (off == la->la_off)
6323 break;
6324 if (off < la->la_off) {
6325 if ((nla = malloc(sizeof(*nla))) == NULL)
6326 err(EXIT_FAILURE, "malloc failed");
6327 nla->la_at = attr_list[i];
6328 nla->la_off = off;
6329 nla->la_lowpc = lowpc;
6330 nla->la_cu_psize = re->cu_psize;
6331 nla->la_cu_osize = re->cu_osize;
6332 nla->la_cu_ver = re->cu_ver;
6333 TAILQ_INSERT_BEFORE(la, nla, la_next);
6334 break;
6335 }
6336 }
6337 if (la == NULL) {
6338 if ((nla = malloc(sizeof(*nla))) == NULL)
6339 err(EXIT_FAILURE, "malloc failed");
6340 nla->la_at = attr_list[i];
6341 nla->la_off = off;
6342 nla->la_lowpc = lowpc;
6343 nla->la_cu_psize = re->cu_psize;
6344 nla->la_cu_osize = re->cu_osize;
6345 nla->la_cu_ver = re->cu_ver;
6346 TAILQ_INSERT_TAIL(&lalist, nla, la_next);
6347 }
6348 }
6349
6350 cont_search:
6351 /* Search children. */
6352 ret = dwarf_child(die, &ret_die, &de);
6353 if (ret == DW_DLV_ERROR)
6354 warnx("dwarf_child: %s", dwarf_errmsg(de));
6355 else if (ret == DW_DLV_OK)
6356 search_loclist_at(re, ret_die, lowpc);
6357
6358 /* Search sibling. */
6359 ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de);
6360 if (ret == DW_DLV_ERROR)
6361 warnx("dwarf_siblingof: %s", dwarf_errmsg(de));
6362 else if (ret == DW_DLV_OK)
6363 search_loclist_at(re, ret_die, lowpc);
6364 }
6365
6366 static void
dump_dwarf_loc(struct readelf * re,Dwarf_Loc * lr)6367 dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr)
6368 {
6369 const char *op_str;
6370 char unk_op[32];
6371 uint8_t *b, n;
6372 int i;
6373
6374 if (dwarf_get_OP_name(lr->lr_atom, &op_str) !=
6375 DW_DLV_OK) {
6376 snprintf(unk_op, sizeof(unk_op),
6377 "[Unknown OP: %#x]", lr->lr_atom);
6378 op_str = unk_op;
6379 }
6380
6381 printf("%s", op_str);
6382
6383 switch (lr->lr_atom) {
6384 case DW_OP_reg0:
6385 case DW_OP_reg1:
6386 case DW_OP_reg2:
6387 case DW_OP_reg3:
6388 case DW_OP_reg4:
6389 case DW_OP_reg5:
6390 case DW_OP_reg6:
6391 case DW_OP_reg7:
6392 case DW_OP_reg8:
6393 case DW_OP_reg9:
6394 case DW_OP_reg10:
6395 case DW_OP_reg11:
6396 case DW_OP_reg12:
6397 case DW_OP_reg13:
6398 case DW_OP_reg14:
6399 case DW_OP_reg15:
6400 case DW_OP_reg16:
6401 case DW_OP_reg17:
6402 case DW_OP_reg18:
6403 case DW_OP_reg19:
6404 case DW_OP_reg20:
6405 case DW_OP_reg21:
6406 case DW_OP_reg22:
6407 case DW_OP_reg23:
6408 case DW_OP_reg24:
6409 case DW_OP_reg25:
6410 case DW_OP_reg26:
6411 case DW_OP_reg27:
6412 case DW_OP_reg28:
6413 case DW_OP_reg29:
6414 case DW_OP_reg30:
6415 case DW_OP_reg31:
6416 printf(" (%s)", dwarf_regname(re, lr->lr_atom - DW_OP_reg0));
6417 break;
6418
6419 case DW_OP_deref:
6420 case DW_OP_lit0:
6421 case DW_OP_lit1:
6422 case DW_OP_lit2:
6423 case DW_OP_lit3:
6424 case DW_OP_lit4:
6425 case DW_OP_lit5:
6426 case DW_OP_lit6:
6427 case DW_OP_lit7:
6428 case DW_OP_lit8:
6429 case DW_OP_lit9:
6430 case DW_OP_lit10:
6431 case DW_OP_lit11:
6432 case DW_OP_lit12:
6433 case DW_OP_lit13:
6434 case DW_OP_lit14:
6435 case DW_OP_lit15:
6436 case DW_OP_lit16:
6437 case DW_OP_lit17:
6438 case DW_OP_lit18:
6439 case DW_OP_lit19:
6440 case DW_OP_lit20:
6441 case DW_OP_lit21:
6442 case DW_OP_lit22:
6443 case DW_OP_lit23:
6444 case DW_OP_lit24:
6445 case DW_OP_lit25:
6446 case DW_OP_lit26:
6447 case DW_OP_lit27:
6448 case DW_OP_lit28:
6449 case DW_OP_lit29:
6450 case DW_OP_lit30:
6451 case DW_OP_lit31:
6452 case DW_OP_dup:
6453 case DW_OP_drop:
6454 case DW_OP_over:
6455 case DW_OP_swap:
6456 case DW_OP_rot:
6457 case DW_OP_xderef:
6458 case DW_OP_abs:
6459 case DW_OP_and:
6460 case DW_OP_div:
6461 case DW_OP_minus:
6462 case DW_OP_mod:
6463 case DW_OP_mul:
6464 case DW_OP_neg:
6465 case DW_OP_not:
6466 case DW_OP_or:
6467 case DW_OP_plus:
6468 case DW_OP_shl:
6469 case DW_OP_shr:
6470 case DW_OP_shra:
6471 case DW_OP_xor:
6472 case DW_OP_eq:
6473 case DW_OP_ge:
6474 case DW_OP_gt:
6475 case DW_OP_le:
6476 case DW_OP_lt:
6477 case DW_OP_ne:
6478 case DW_OP_nop:
6479 case DW_OP_push_object_address:
6480 case DW_OP_form_tls_address:
6481 case DW_OP_call_frame_cfa:
6482 case DW_OP_stack_value:
6483 case DW_OP_GNU_push_tls_address:
6484 case DW_OP_GNU_uninit:
6485 break;
6486
6487 case DW_OP_const1u:
6488 case DW_OP_pick:
6489 case DW_OP_deref_size:
6490 case DW_OP_xderef_size:
6491 case DW_OP_const2u:
6492 case DW_OP_bra:
6493 case DW_OP_skip:
6494 case DW_OP_const4u:
6495 case DW_OP_const8u:
6496 case DW_OP_constu:
6497 case DW_OP_plus_uconst:
6498 case DW_OP_regx:
6499 case DW_OP_piece:
6500 printf(": %ju", (uintmax_t)
6501 lr->lr_number);
6502 break;
6503
6504 case DW_OP_const1s:
6505 case DW_OP_const2s:
6506 case DW_OP_const4s:
6507 case DW_OP_const8s:
6508 case DW_OP_consts:
6509 printf(": %jd", (intmax_t)
6510 lr->lr_number);
6511 break;
6512
6513 case DW_OP_breg0:
6514 case DW_OP_breg1:
6515 case DW_OP_breg2:
6516 case DW_OP_breg3:
6517 case DW_OP_breg4:
6518 case DW_OP_breg5:
6519 case DW_OP_breg6:
6520 case DW_OP_breg7:
6521 case DW_OP_breg8:
6522 case DW_OP_breg9:
6523 case DW_OP_breg10:
6524 case DW_OP_breg11:
6525 case DW_OP_breg12:
6526 case DW_OP_breg13:
6527 case DW_OP_breg14:
6528 case DW_OP_breg15:
6529 case DW_OP_breg16:
6530 case DW_OP_breg17:
6531 case DW_OP_breg18:
6532 case DW_OP_breg19:
6533 case DW_OP_breg20:
6534 case DW_OP_breg21:
6535 case DW_OP_breg22:
6536 case DW_OP_breg23:
6537 case DW_OP_breg24:
6538 case DW_OP_breg25:
6539 case DW_OP_breg26:
6540 case DW_OP_breg27:
6541 case DW_OP_breg28:
6542 case DW_OP_breg29:
6543 case DW_OP_breg30:
6544 case DW_OP_breg31:
6545 printf(" (%s): %jd",
6546 dwarf_regname(re, lr->lr_atom - DW_OP_breg0),
6547 (intmax_t) lr->lr_number);
6548 break;
6549
6550 case DW_OP_fbreg:
6551 printf(": %jd", (intmax_t)
6552 lr->lr_number);
6553 break;
6554
6555 case DW_OP_bregx:
6556 printf(": %ju (%s) %jd",
6557 (uintmax_t) lr->lr_number,
6558 dwarf_regname(re, (unsigned int) lr->lr_number),
6559 (intmax_t) lr->lr_number2);
6560 break;
6561
6562 case DW_OP_addr:
6563 case DW_OP_GNU_encoded_addr:
6564 printf(": %#jx", (uintmax_t)
6565 lr->lr_number);
6566 break;
6567
6568 case DW_OP_GNU_implicit_pointer:
6569 printf(": <0x%jx> %jd", (uintmax_t) lr->lr_number,
6570 (intmax_t) lr->lr_number2);
6571 break;
6572
6573 case DW_OP_implicit_value:
6574 printf(": %ju byte block:", (uintmax_t) lr->lr_number);
6575 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6576 for (i = 0; (Dwarf_Unsigned) i < lr->lr_number; i++)
6577 printf(" %x", b[i]);
6578 break;
6579
6580 case DW_OP_GNU_entry_value:
6581 printf(": (");
6582 dump_dwarf_block(re, (uint8_t *)(uintptr_t) lr->lr_number2,
6583 lr->lr_number);
6584 putchar(')');
6585 break;
6586
6587 case DW_OP_GNU_const_type:
6588 printf(": <0x%jx> ", (uintmax_t) lr->lr_number);
6589 b = (uint8_t *)(uintptr_t) lr->lr_number2;
6590 n = *b;
6591 for (i = 1; (uint8_t) i < n; i++)
6592 printf(" %x", b[i]);
6593 break;
6594
6595 case DW_OP_GNU_regval_type:
6596 printf(": %ju (%s) <0x%jx>", (uintmax_t) lr->lr_number,
6597 dwarf_regname(re, (unsigned int) lr->lr_number),
6598 (uintmax_t) lr->lr_number2);
6599 break;
6600
6601 case DW_OP_GNU_convert:
6602 case DW_OP_GNU_deref_type:
6603 case DW_OP_GNU_parameter_ref:
6604 case DW_OP_GNU_reinterpret:
6605 printf(": <0x%jx>", (uintmax_t) lr->lr_number);
6606 break;
6607
6608 default:
6609 break;
6610 }
6611 }
6612
6613 static void
dump_dwarf_block(struct readelf * re,uint8_t * b,Dwarf_Unsigned len)6614 dump_dwarf_block(struct readelf *re, uint8_t *b, Dwarf_Unsigned len)
6615 {
6616 Dwarf_Locdesc *llbuf;
6617 Dwarf_Signed lcnt;
6618 Dwarf_Error de;
6619 int i;
6620
6621 if (dwarf_loclist_from_expr_b(re->dbg, b, len, re->cu_psize,
6622 re->cu_osize, re->cu_ver, &llbuf, &lcnt, &de) != DW_DLV_OK) {
6623 warnx("dwarf_loclist_form_expr_b: %s", dwarf_errmsg(de));
6624 return;
6625 }
6626
6627 for (i = 0; (Dwarf_Half) i < llbuf->ld_cents; i++) {
6628 dump_dwarf_loc(re, &llbuf->ld_s[i]);
6629 if (i < llbuf->ld_cents - 1)
6630 printf("; ");
6631 }
6632
6633 dwarf_dealloc(re->dbg, llbuf->ld_s, DW_DLA_LOC_BLOCK);
6634 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LOCDESC);
6635 }
6636
6637 static void
dump_dwarf_loclist(struct readelf * re)6638 dump_dwarf_loclist(struct readelf *re)
6639 {
6640 Dwarf_Die die;
6641 Dwarf_Locdesc **llbuf;
6642 Dwarf_Unsigned lowpc;
6643 Dwarf_Signed lcnt;
6644 Dwarf_Half tag, version, pointer_size, off_size;
6645 Dwarf_Error de;
6646 struct loc_at *la;
6647 int i, j, ret;
6648
6649 printf("\nContents of section .debug_loc:\n");
6650
6651 /* Search .debug_info section. */
6652 while ((ret = dwarf_next_cu_header_b(re->dbg, NULL, &version, NULL,
6653 &pointer_size, &off_size, NULL, NULL, &de)) == DW_DLV_OK) {
6654 set_cu_context(re, pointer_size, off_size, version);
6655 die = NULL;
6656 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK)
6657 continue;
6658 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6659 warnx("dwarf_tag failed: %s", dwarf_errmsg(de));
6660 continue;
6661 }
6662 /* XXX: What about DW_TAG_partial_unit? */
6663 lowpc = 0;
6664 if (tag == DW_TAG_compile_unit) {
6665 if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6666 &lowpc, &de) != DW_DLV_OK)
6667 lowpc = 0;
6668 }
6669
6670 /* Search attributes for reference to .debug_loc section. */
6671 search_loclist_at(re, die, lowpc);
6672 }
6673 if (ret == DW_DLV_ERROR)
6674 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6675
6676 /* Search .debug_types section. */
6677 do {
6678 while ((ret = dwarf_next_cu_header_c(re->dbg, 0, NULL,
6679 &version, NULL, &pointer_size, &off_size, NULL, NULL,
6680 NULL, NULL, &de)) == DW_DLV_OK) {
6681 set_cu_context(re, pointer_size, off_size, version);
6682 die = NULL;
6683 if (dwarf_siblingof(re->dbg, die, &die, &de) !=
6684 DW_DLV_OK)
6685 continue;
6686 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) {
6687 warnx("dwarf_tag failed: %s",
6688 dwarf_errmsg(de));
6689 continue;
6690 }
6691
6692 lowpc = 0;
6693 if (tag == DW_TAG_type_unit) {
6694 if (dwarf_attrval_unsigned(die, DW_AT_low_pc,
6695 &lowpc, &de) != DW_DLV_OK)
6696 lowpc = 0;
6697 }
6698
6699 /*
6700 * Search attributes for reference to .debug_loc
6701 * section.
6702 */
6703 search_loclist_at(re, die, lowpc);
6704 }
6705 if (ret == DW_DLV_ERROR)
6706 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de));
6707 } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK);
6708
6709 if (TAILQ_EMPTY(&lalist))
6710 return;
6711
6712 printf(" Offset Begin End Expression\n");
6713
6714 TAILQ_FOREACH(la, &lalist, la_next) {
6715 if (dwarf_loclist_n(la->la_at, &llbuf, &lcnt, &de) !=
6716 DW_DLV_OK) {
6717 warnx("dwarf_loclist_n failed: %s", dwarf_errmsg(de));
6718 continue;
6719 }
6720 set_cu_context(re, la->la_cu_psize, la->la_cu_osize,
6721 la->la_cu_ver);
6722 for (i = 0; i < lcnt; i++) {
6723 printf(" %8.8jx ", (uintmax_t) la->la_off);
6724 if (llbuf[i]->ld_lopc == 0 && llbuf[i]->ld_hipc == 0) {
6725 printf("<End of list>\n");
6726 continue;
6727 }
6728
6729 /* TODO: handle base selection entry. */
6730
6731 printf("%8.8jx %8.8jx ",
6732 (uintmax_t) (la->la_lowpc + llbuf[i]->ld_lopc),
6733 (uintmax_t) (la->la_lowpc + llbuf[i]->ld_hipc));
6734
6735 putchar('(');
6736 for (j = 0; (Dwarf_Half) j < llbuf[i]->ld_cents; j++) {
6737 dump_dwarf_loc(re, &llbuf[i]->ld_s[j]);
6738 if (j < llbuf[i]->ld_cents - 1)
6739 printf("; ");
6740 }
6741 putchar(')');
6742
6743 if (llbuf[i]->ld_lopc == llbuf[i]->ld_hipc)
6744 printf(" (start == end)");
6745 putchar('\n');
6746 }
6747 for (i = 0; i < lcnt; i++) {
6748 dwarf_dealloc(re->dbg, llbuf[i]->ld_s,
6749 DW_DLA_LOC_BLOCK);
6750 dwarf_dealloc(re->dbg, llbuf[i], DW_DLA_LOCDESC);
6751 }
6752 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LIST);
6753 }
6754 }
6755
6756 /*
6757 * Retrieve a string using string table section index and the string offset.
6758 */
6759 static const char*
get_string(struct readelf * re,int strtab,size_t off)6760 get_string(struct readelf *re, int strtab, size_t off)
6761 {
6762 const char *name;
6763
6764 if ((name = elf_strptr(re->elf, strtab, off)) == NULL)
6765 return ("");
6766
6767 return (name);
6768 }
6769
6770 /*
6771 * Retrieve the name of a symbol using the section index of the symbol
6772 * table and the index of the symbol within that table.
6773 */
6774 static const char *
get_symbol_name(struct readelf * re,int symtab,int i)6775 get_symbol_name(struct readelf *re, int symtab, int i)
6776 {
6777 struct section *s;
6778 const char *name;
6779 GElf_Sym sym;
6780 Elf_Data *data;
6781 int elferr;
6782
6783 s = &re->sl[symtab];
6784 if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6785 return ("");
6786 (void) elf_errno();
6787 if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6788 elferr = elf_errno();
6789 if (elferr != 0)
6790 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6791 return ("");
6792 }
6793 if (gelf_getsym(data, i, &sym) != &sym)
6794 return ("");
6795 /* Return section name for STT_SECTION symbol. */
6796 if (GELF_ST_TYPE(sym.st_info) == STT_SECTION &&
6797 re->sl[sym.st_shndx].name != NULL)
6798 return (re->sl[sym.st_shndx].name);
6799 if (s->link >= re->shnum ||
6800 (name = elf_strptr(re->elf, s->link, sym.st_name)) == NULL)
6801 return ("");
6802
6803 return (name);
6804 }
6805
6806 static uint64_t
get_symbol_value(struct readelf * re,int symtab,int i)6807 get_symbol_value(struct readelf *re, int symtab, int i)
6808 {
6809 struct section *s;
6810 GElf_Sym sym;
6811 Elf_Data *data;
6812 int elferr;
6813
6814 s = &re->sl[symtab];
6815 if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM)
6816 return (0);
6817 (void) elf_errno();
6818 if ((data = elf_getdata(s->scn, NULL)) == NULL) {
6819 elferr = elf_errno();
6820 if (elferr != 0)
6821 warnx("elf_getdata failed: %s", elf_errmsg(elferr));
6822 return (0);
6823 }
6824 if (gelf_getsym(data, i, &sym) != &sym)
6825 return (0);
6826
6827 return (sym.st_value);
6828 }
6829
6830 static void
hex_dump(struct readelf * re)6831 hex_dump(struct readelf *re)
6832 {
6833 struct section *s;
6834 Elf_Data *d;
6835 uint8_t *buf;
6836 size_t sz, nbytes;
6837 uint64_t addr;
6838 int elferr, i, j;
6839
6840 for (i = 1; (size_t) i < re->shnum; i++) {
6841 s = &re->sl[i];
6842 if (find_dumpop(re, (size_t) i, s->name, HEX_DUMP, -1) == NULL)
6843 continue;
6844 (void) elf_errno();
6845 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6846 (d = elf_rawdata(s->scn, NULL)) == NULL) {
6847 elferr = elf_errno();
6848 if (elferr != 0)
6849 warnx("elf_getdata failed: %s",
6850 elf_errmsg(elferr));
6851 continue;
6852 }
6853 (void) elf_errno();
6854 if (d->d_size <= 0 || d->d_buf == NULL) {
6855 printf("\nSection '%s' has no data to dump.\n",
6856 s->name);
6857 continue;
6858 }
6859 buf = d->d_buf;
6860 sz = d->d_size;
6861 addr = s->addr;
6862 printf("\nHex dump of section '%s':\n", s->name);
6863 while (sz > 0) {
6864 printf(" 0x%8.8jx ", (uintmax_t)addr);
6865 nbytes = sz > 16? 16 : sz;
6866 for (j = 0; j < 16; j++) {
6867 if ((size_t)j < nbytes)
6868 printf("%2.2x", buf[j]);
6869 else
6870 printf(" ");
6871 if ((j & 3) == 3)
6872 printf(" ");
6873 }
6874 for (j = 0; (size_t)j < nbytes; j++) {
6875 if (isprint(buf[j]))
6876 printf("%c", buf[j]);
6877 else
6878 printf(".");
6879 }
6880 printf("\n");
6881 buf += nbytes;
6882 addr += nbytes;
6883 sz -= nbytes;
6884 }
6885 }
6886 }
6887
6888 static void
str_dump(struct readelf * re)6889 str_dump(struct readelf *re)
6890 {
6891 struct section *s;
6892 Elf_Data *d;
6893 unsigned char *start, *end, *buf_end;
6894 unsigned int len;
6895 int i, j, elferr, found;
6896
6897 for (i = 1; (size_t) i < re->shnum; i++) {
6898 s = &re->sl[i];
6899 if (find_dumpop(re, (size_t) i, s->name, STR_DUMP, -1) == NULL)
6900 continue;
6901 (void) elf_errno();
6902 if ((d = elf_getdata(s->scn, NULL)) == NULL &&
6903 (d = elf_rawdata(s->scn, NULL)) == NULL) {
6904 elferr = elf_errno();
6905 if (elferr != 0)
6906 warnx("elf_getdata failed: %s",
6907 elf_errmsg(elferr));
6908 continue;
6909 }
6910 (void) elf_errno();
6911 if (d->d_size <= 0 || d->d_buf == NULL) {
6912 printf("\nSection '%s' has no data to dump.\n",
6913 s->name);
6914 continue;
6915 }
6916 buf_end = (unsigned char *) d->d_buf + d->d_size;
6917 start = (unsigned char *) d->d_buf;
6918 found = 0;
6919 printf("\nString dump of section '%s':\n", s->name);
6920 for (;;) {
6921 while (start < buf_end && !isprint(*start))
6922 start++;
6923 if (start >= buf_end)
6924 break;
6925 end = start + 1;
6926 while (end < buf_end && isprint(*end))
6927 end++;
6928 printf(" [%6lx] ",
6929 (long) (start - (unsigned char *) d->d_buf));
6930 len = end - start;
6931 for (j = 0; (unsigned int) j < len; j++)
6932 putchar(start[j]);
6933 putchar('\n');
6934 found = 1;
6935 if (end >= buf_end)
6936 break;
6937 start = end + 1;
6938 }
6939 if (!found)
6940 printf(" No strings found in this section.");
6941 putchar('\n');
6942 }
6943 }
6944
6945 static void
load_sections(struct readelf * re)6946 load_sections(struct readelf *re)
6947 {
6948 struct section *s;
6949 const char *name;
6950 Elf_Scn *scn;
6951 GElf_Shdr sh;
6952 size_t shstrndx, ndx;
6953 int elferr;
6954
6955 /* Allocate storage for internal section list. */
6956 if (!elf_getshnum(re->elf, &re->shnum)) {
6957 warnx("elf_getshnum failed: %s", elf_errmsg(-1));
6958 return;
6959 }
6960 if (re->sl != NULL)
6961 free(re->sl);
6962 if ((re->sl = calloc(re->shnum, sizeof(*re->sl))) == NULL)
6963 err(EXIT_FAILURE, "calloc failed");
6964
6965 /* Get the index of .shstrtab section. */
6966 if (!elf_getshstrndx(re->elf, &shstrndx)) {
6967 warnx("elf_getshstrndx failed: %s", elf_errmsg(-1));
6968 return;
6969 }
6970
6971 if ((scn = elf_getscn(re->elf, 0)) == NULL)
6972 return;
6973
6974 (void) elf_errno();
6975 do {
6976 if (gelf_getshdr(scn, &sh) == NULL) {
6977 warnx("gelf_getshdr failed: %s", elf_errmsg(-1));
6978 (void) elf_errno();
6979 continue;
6980 }
6981 if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) {
6982 (void) elf_errno();
6983 name = "ERROR";
6984 }
6985 if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) {
6986 if ((elferr = elf_errno()) != 0)
6987 warnx("elf_ndxscn failed: %s",
6988 elf_errmsg(elferr));
6989 continue;
6990 }
6991 if (ndx >= re->shnum) {
6992 warnx("section index of '%s' out of range", name);
6993 continue;
6994 }
6995 if (sh.sh_link >= re->shnum)
6996 warnx("section link %llu of '%s' out of range",
6997 (unsigned long long)sh.sh_link, name);
6998 s = &re->sl[ndx];
6999 s->name = name;
7000 s->scn = scn;
7001 s->off = sh.sh_offset;
7002 s->sz = sh.sh_size;
7003 s->entsize = sh.sh_entsize;
7004 s->align = sh.sh_addralign;
7005 s->type = sh.sh_type;
7006 s->flags = sh.sh_flags;
7007 s->addr = sh.sh_addr;
7008 s->link = sh.sh_link;
7009 s->info = sh.sh_info;
7010 } while ((scn = elf_nextscn(re->elf, scn)) != NULL);
7011 elferr = elf_errno();
7012 if (elferr != 0)
7013 warnx("elf_nextscn failed: %s", elf_errmsg(elferr));
7014 }
7015
7016 static void
unload_sections(struct readelf * re)7017 unload_sections(struct readelf *re)
7018 {
7019
7020 if (re->sl != NULL) {
7021 free(re->sl);
7022 re->sl = NULL;
7023 }
7024 re->shnum = 0;
7025 re->vd_s = NULL;
7026 re->vn_s = NULL;
7027 re->vs_s = NULL;
7028 re->vs = NULL;
7029 re->vs_sz = 0;
7030 if (re->ver != NULL) {
7031 free(re->ver);
7032 re->ver = NULL;
7033 re->ver_sz = 0;
7034 }
7035 }
7036
7037 static void
dump_elf(struct readelf * re)7038 dump_elf(struct readelf *re)
7039 {
7040
7041 /* Fetch ELF header. No need to continue if it fails. */
7042 if (gelf_getehdr(re->elf, &re->ehdr) == NULL) {
7043 warnx("gelf_getehdr failed: %s", elf_errmsg(-1));
7044 return;
7045 }
7046 if ((re->ec = gelf_getclass(re->elf)) == ELFCLASSNONE) {
7047 warnx("gelf_getclass failed: %s", elf_errmsg(-1));
7048 return;
7049 }
7050 if (re->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) {
7051 re->dw_read = _read_msb;
7052 re->dw_decode = _decode_msb;
7053 } else {
7054 re->dw_read = _read_lsb;
7055 re->dw_decode = _decode_lsb;
7056 }
7057
7058 if (re->options & ~RE_H)
7059 load_sections(re);
7060 if ((re->options & RE_VV) || (re->options & RE_S))
7061 search_ver(re);
7062 if (re->options & RE_H)
7063 dump_ehdr(re);
7064 if (re->options & RE_L)
7065 dump_phdr(re);
7066 if (re->options & RE_SS)
7067 dump_shdr(re);
7068 if (re->options & RE_G)
7069 dump_section_groups(re);
7070 if (re->options & RE_D)
7071 dump_dynamic(re);
7072 if (re->options & RE_R)
7073 dump_reloc(re);
7074 if (re->options & RE_S)
7075 dump_symtabs(re);
7076 if (re->options & RE_N)
7077 dump_notes(re);
7078 if (re->options & RE_II)
7079 dump_hash(re);
7080 if (re->options & RE_X)
7081 hex_dump(re);
7082 if (re->options & RE_P)
7083 str_dump(re);
7084 if (re->options & RE_VV)
7085 dump_ver(re);
7086 if (re->options & RE_AA)
7087 dump_arch_specific_info(re);
7088 if (re->options & RE_W)
7089 dump_dwarf(re);
7090 if (re->options & ~RE_H)
7091 unload_sections(re);
7092 }
7093
7094 static void
dump_dwarf(struct readelf * re)7095 dump_dwarf(struct readelf *re)
7096 {
7097 int error;
7098 Dwarf_Error de;
7099
7100 if (dwarf_elf_init(re->elf, DW_DLC_READ, NULL, NULL, &re->dbg, &de)) {
7101 if ((error = dwarf_errno(de)) != DW_DLE_DEBUG_INFO_NULL)
7102 errx(EXIT_FAILURE, "dwarf_elf_init failed: %s",
7103 dwarf_errmsg(de));
7104 return;
7105 }
7106
7107 if (re->dop & DW_A)
7108 dump_dwarf_abbrev(re);
7109 if (re->dop & DW_L)
7110 dump_dwarf_line(re);
7111 if (re->dop & DW_LL)
7112 dump_dwarf_line_decoded(re);
7113 if (re->dop & DW_I) {
7114 dump_dwarf_info(re, 0);
7115 dump_dwarf_info(re, 1);
7116 }
7117 if (re->dop & DW_P)
7118 dump_dwarf_pubnames(re);
7119 if (re->dop & DW_R)
7120 dump_dwarf_aranges(re);
7121 if (re->dop & DW_RR)
7122 dump_dwarf_ranges(re);
7123 if (re->dop & DW_M)
7124 dump_dwarf_macinfo(re);
7125 if (re->dop & DW_F)
7126 dump_dwarf_frame(re, 0);
7127 else if (re->dop & DW_FF)
7128 dump_dwarf_frame(re, 1);
7129 if (re->dop & DW_S)
7130 dump_dwarf_str(re);
7131 if (re->dop & DW_O)
7132 dump_dwarf_loclist(re);
7133
7134 dwarf_finish(re->dbg, &de);
7135 }
7136
7137 static void
dump_ar(struct readelf * re,int fd)7138 dump_ar(struct readelf *re, int fd)
7139 {
7140 Elf_Arsym *arsym;
7141 Elf_Arhdr *arhdr;
7142 Elf_Cmd cmd;
7143 Elf *e;
7144 size_t sz;
7145 off_t off;
7146 int i;
7147
7148 re->ar = re->elf;
7149
7150 if (re->options & RE_C) {
7151 if ((arsym = elf_getarsym(re->ar, &sz)) == NULL) {
7152 warnx("elf_getarsym() failed: %s", elf_errmsg(-1));
7153 goto process_members;
7154 }
7155 printf("Index of archive %s: (%ju entries)\n", re->filename,
7156 (uintmax_t) sz - 1);
7157 off = 0;
7158 for (i = 0; (size_t) i < sz; i++) {
7159 if (arsym[i].as_name == NULL)
7160 break;
7161 if (arsym[i].as_off != off) {
7162 off = arsym[i].as_off;
7163 if (elf_rand(re->ar, off) != off) {
7164 warnx("elf_rand() failed: %s",
7165 elf_errmsg(-1));
7166 continue;
7167 }
7168 if ((e = elf_begin(fd, ELF_C_READ, re->ar)) ==
7169 NULL) {
7170 warnx("elf_begin() failed: %s",
7171 elf_errmsg(-1));
7172 continue;
7173 }
7174 if ((arhdr = elf_getarhdr(e)) == NULL) {
7175 warnx("elf_getarhdr() failed: %s",
7176 elf_errmsg(-1));
7177 elf_end(e);
7178 continue;
7179 }
7180 printf("Binary %s(%s) contains:\n",
7181 re->filename, arhdr->ar_name);
7182 }
7183 printf("\t%s\n", arsym[i].as_name);
7184 }
7185 if (elf_rand(re->ar, SARMAG) != SARMAG) {
7186 warnx("elf_rand() failed: %s", elf_errmsg(-1));
7187 return;
7188 }
7189 }
7190
7191 process_members:
7192
7193 if ((re->options & ~RE_C) == 0)
7194 return;
7195
7196 cmd = ELF_C_READ;
7197 while ((re->elf = elf_begin(fd, cmd, re->ar)) != NULL) {
7198 if ((arhdr = elf_getarhdr(re->elf)) == NULL) {
7199 warnx("elf_getarhdr() failed: %s", elf_errmsg(-1));
7200 goto next_member;
7201 }
7202 if (strcmp(arhdr->ar_name, "/") == 0 ||
7203 strcmp(arhdr->ar_name, "//") == 0 ||
7204 strcmp(arhdr->ar_name, "__.SYMDEF") == 0)
7205 goto next_member;
7206 printf("\nFile: %s(%s)\n", re->filename, arhdr->ar_name);
7207 dump_elf(re);
7208
7209 next_member:
7210 cmd = elf_next(re->elf);
7211 elf_end(re->elf);
7212 }
7213 re->elf = re->ar;
7214 }
7215
7216 static void
dump_object(struct readelf * re)7217 dump_object(struct readelf *re)
7218 {
7219 int fd;
7220
7221 if ((fd = open(re->filename, O_RDONLY)) == -1) {
7222 warn("open %s failed", re->filename);
7223 return;
7224 }
7225
7226 if ((re->flags & DISPLAY_FILENAME) != 0)
7227 printf("\nFile: %s\n", re->filename);
7228
7229 if ((re->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
7230 warnx("elf_begin() failed: %s", elf_errmsg(-1));
7231 return;
7232 }
7233
7234 switch (elf_kind(re->elf)) {
7235 case ELF_K_NONE:
7236 warnx("Not an ELF file.");
7237 return;
7238 case ELF_K_ELF:
7239 dump_elf(re);
7240 break;
7241 case ELF_K_AR:
7242 dump_ar(re, fd);
7243 break;
7244 default:
7245 warnx("Internal: libelf returned unknown elf kind.");
7246 return;
7247 }
7248
7249 elf_end(re->elf);
7250 }
7251
7252 static void
add_dumpop(struct readelf * re,size_t si,const char * sn,int op,int t)7253 add_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
7254 {
7255 struct dumpop *d;
7256
7257 if ((d = find_dumpop(re, si, sn, -1, t)) == NULL) {
7258 if ((d = calloc(1, sizeof(*d))) == NULL)
7259 err(EXIT_FAILURE, "calloc failed");
7260 if (t == DUMP_BY_INDEX)
7261 d->u.si = si;
7262 else
7263 d->u.sn = sn;
7264 d->type = t;
7265 d->op = op;
7266 STAILQ_INSERT_TAIL(&re->v_dumpop, d, dumpop_list);
7267 } else
7268 d->op |= op;
7269 }
7270
7271 static struct dumpop *
find_dumpop(struct readelf * re,size_t si,const char * sn,int op,int t)7272 find_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t)
7273 {
7274 struct dumpop *d;
7275
7276 STAILQ_FOREACH(d, &re->v_dumpop, dumpop_list) {
7277 if ((op == -1 || op & d->op) &&
7278 (t == -1 || (unsigned) t == d->type)) {
7279 if ((d->type == DUMP_BY_INDEX && d->u.si == si) ||
7280 (d->type == DUMP_BY_NAME && !strcmp(d->u.sn, sn)))
7281 return (d);
7282 }
7283 }
7284
7285 return (NULL);
7286 }
7287
7288 static struct {
7289 const char *ln;
7290 char sn;
7291 int value;
7292 } dwarf_op[] = {
7293 {"rawline", 'l', DW_L},
7294 {"decodedline", 'L', DW_LL},
7295 {"info", 'i', DW_I},
7296 {"abbrev", 'a', DW_A},
7297 {"pubnames", 'p', DW_P},
7298 {"aranges", 'r', DW_R},
7299 {"ranges", 'r', DW_R},
7300 {"Ranges", 'R', DW_RR},
7301 {"macro", 'm', DW_M},
7302 {"frames", 'f', DW_F},
7303 {"frames-interp", 'F', DW_FF},
7304 {"str", 's', DW_S},
7305 {"loc", 'o', DW_O},
7306 {NULL, 0, 0}
7307 };
7308
7309 static void
parse_dwarf_op_short(struct readelf * re,const char * op)7310 parse_dwarf_op_short(struct readelf *re, const char *op)
7311 {
7312 int i;
7313
7314 if (op == NULL) {
7315 re->dop |= DW_DEFAULT_OPTIONS;
7316 return;
7317 }
7318
7319 for (; *op != '\0'; op++) {
7320 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7321 if (dwarf_op[i].sn == *op) {
7322 re->dop |= dwarf_op[i].value;
7323 break;
7324 }
7325 }
7326 }
7327 }
7328
7329 static void
parse_dwarf_op_long(struct readelf * re,const char * op)7330 parse_dwarf_op_long(struct readelf *re, const char *op)
7331 {
7332 char *p, *token, *bp;
7333 int i;
7334
7335 if (op == NULL) {
7336 re->dop |= DW_DEFAULT_OPTIONS;
7337 return;
7338 }
7339
7340 if ((p = strdup(op)) == NULL)
7341 err(EXIT_FAILURE, "strdup failed");
7342 bp = p;
7343
7344 while ((token = strsep(&p, ",")) != NULL) {
7345 for (i = 0; dwarf_op[i].ln != NULL; i++) {
7346 if (!strcmp(token, dwarf_op[i].ln)) {
7347 re->dop |= dwarf_op[i].value;
7348 break;
7349 }
7350 }
7351 }
7352
7353 free(bp);
7354 }
7355
7356 static uint64_t
_read_lsb(Elf_Data * d,uint64_t * offsetp,int bytes_to_read)7357 _read_lsb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7358 {
7359 uint64_t ret;
7360 uint8_t *src;
7361
7362 src = (uint8_t *) d->d_buf + *offsetp;
7363
7364 ret = 0;
7365 switch (bytes_to_read) {
7366 case 8:
7367 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7368 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7369 /* FALLTHROUGH */
7370 case 4:
7371 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7372 /* FALLTHROUGH */
7373 case 2:
7374 ret |= ((uint64_t) src[1]) << 8;
7375 /* FALLTHROUGH */
7376 case 1:
7377 ret |= src[0];
7378 break;
7379 default:
7380 return (0);
7381 }
7382
7383 *offsetp += bytes_to_read;
7384
7385 return (ret);
7386 }
7387
7388 static uint64_t
_read_msb(Elf_Data * d,uint64_t * offsetp,int bytes_to_read)7389 _read_msb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read)
7390 {
7391 uint64_t ret;
7392 uint8_t *src;
7393
7394 src = (uint8_t *) d->d_buf + *offsetp;
7395
7396 switch (bytes_to_read) {
7397 case 1:
7398 ret = src[0];
7399 break;
7400 case 2:
7401 ret = src[1] | ((uint64_t) src[0]) << 8;
7402 break;
7403 case 4:
7404 ret = src[3] | ((uint64_t) src[2]) << 8;
7405 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7406 break;
7407 case 8:
7408 ret = src[7] | ((uint64_t) src[6]) << 8;
7409 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7410 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7411 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7412 break;
7413 default:
7414 return (0);
7415 }
7416
7417 *offsetp += bytes_to_read;
7418
7419 return (ret);
7420 }
7421
7422 static uint64_t
_decode_lsb(uint8_t ** data,int bytes_to_read)7423 _decode_lsb(uint8_t **data, int bytes_to_read)
7424 {
7425 uint64_t ret;
7426 uint8_t *src;
7427
7428 src = *data;
7429
7430 ret = 0;
7431 switch (bytes_to_read) {
7432 case 8:
7433 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40;
7434 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56;
7435 /* FALLTHROUGH */
7436 case 4:
7437 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24;
7438 /* FALLTHROUGH */
7439 case 2:
7440 ret |= ((uint64_t) src[1]) << 8;
7441 /* FALLTHROUGH */
7442 case 1:
7443 ret |= src[0];
7444 break;
7445 default:
7446 return (0);
7447 }
7448
7449 *data += bytes_to_read;
7450
7451 return (ret);
7452 }
7453
7454 static uint64_t
_decode_msb(uint8_t ** data,int bytes_to_read)7455 _decode_msb(uint8_t **data, int bytes_to_read)
7456 {
7457 uint64_t ret;
7458 uint8_t *src;
7459
7460 src = *data;
7461
7462 ret = 0;
7463 switch (bytes_to_read) {
7464 case 1:
7465 ret = src[0];
7466 break;
7467 case 2:
7468 ret = src[1] | ((uint64_t) src[0]) << 8;
7469 break;
7470 case 4:
7471 ret = src[3] | ((uint64_t) src[2]) << 8;
7472 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24;
7473 break;
7474 case 8:
7475 ret = src[7] | ((uint64_t) src[6]) << 8;
7476 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24;
7477 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40;
7478 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56;
7479 break;
7480 default:
7481 return (0);
7482 break;
7483 }
7484
7485 *data += bytes_to_read;
7486
7487 return (ret);
7488 }
7489
7490 static int64_t
_decode_sleb128(uint8_t ** dp,uint8_t * dpe)7491 _decode_sleb128(uint8_t **dp, uint8_t *dpe)
7492 {
7493 int64_t ret = 0;
7494 uint8_t b = 0;
7495 int shift = 0;
7496
7497 uint8_t *src = *dp;
7498
7499 do {
7500 if (src >= dpe)
7501 break;
7502 b = *src++;
7503 ret |= ((b & 0x7f) << shift);
7504 shift += 7;
7505 } while ((b & 0x80) != 0);
7506
7507 if (shift < 32 && (b & 0x40) != 0)
7508 ret |= (-1 << shift);
7509
7510 *dp = src;
7511
7512 return (ret);
7513 }
7514
7515 static uint64_t
_decode_uleb128(uint8_t ** dp,uint8_t * dpe)7516 _decode_uleb128(uint8_t **dp, uint8_t *dpe)
7517 {
7518 uint64_t ret = 0;
7519 uint8_t b;
7520 int shift = 0;
7521
7522 uint8_t *src = *dp;
7523
7524 do {
7525 if (src >= dpe)
7526 break;
7527 b = *src++;
7528 ret |= ((b & 0x7f) << shift);
7529 shift += 7;
7530 } while ((b & 0x80) != 0);
7531
7532 *dp = src;
7533
7534 return (ret);
7535 }
7536
7537 static void
readelf_version(void)7538 readelf_version(void)
7539 {
7540 (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(),
7541 elftc_version());
7542 exit(EXIT_SUCCESS);
7543 }
7544
7545 #define USAGE_MESSAGE "\
7546 Usage: %s [options] file...\n\
7547 Display information about ELF objects and ar(1) archives.\n\n\
7548 Options:\n\
7549 -a | --all Equivalent to specifying options '-dhIlrsASV'.\n\
7550 -c | --archive-index Print the archive symbol table for archives.\n\
7551 -d | --dynamic Print the contents of SHT_DYNAMIC sections.\n\
7552 -e | --headers Print all headers in the object.\n\
7553 -g | --section-groups Print the contents of the section groups.\n\
7554 -h | --file-header Print the file header for the object.\n\
7555 -l | --program-headers Print the PHDR table for the object.\n\
7556 -n | --notes Print the contents of SHT_NOTE sections.\n\
7557 -p INDEX | --string-dump=INDEX\n\
7558 Print the contents of section at index INDEX.\n\
7559 -r | --relocs Print relocation information.\n\
7560 -s | --syms | --symbols Print symbol tables.\n\
7561 -t | --section-details Print additional information about sections.\n\
7562 -v | --version Print a version identifier and exit.\n\
7563 -w[afilmoprsFLR] | --debug-dump={abbrev,aranges,decodedline,frames,\n\
7564 frames-interp,info,loc,macro,pubnames,\n\
7565 ranges,Ranges,rawline,str}\n\
7566 Display DWARF information.\n\
7567 -x INDEX | --hex-dump=INDEX\n\
7568 Display contents of a section as hexadecimal.\n\
7569 -A | --arch-specific (accepted, but ignored)\n\
7570 -D | --use-dynamic Print the symbol table specified by the DT_SYMTAB\n\
7571 entry in the \".dynamic\" section.\n\
7572 -H | --help Print a help message.\n\
7573 -I | --histogram Print information on bucket list lengths for \n\
7574 hash sections.\n\
7575 -N | --full-section-name (accepted, but ignored)\n\
7576 -S | --sections | --section-headers\n\
7577 Print information about section headers.\n\
7578 -V | --version-info Print symbol versoning information.\n\
7579 -W | --wide Print information without wrapping long lines.\n"
7580
7581
7582 static void
readelf_usage(int status)7583 readelf_usage(int status)
7584 {
7585 fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
7586 exit(status);
7587 }
7588
7589 int
main(int argc,char ** argv)7590 main(int argc, char **argv)
7591 {
7592 struct readelf *re, re_storage;
7593 unsigned long si;
7594 int opt, i;
7595 char *ep;
7596
7597 re = &re_storage;
7598 memset(re, 0, sizeof(*re));
7599 STAILQ_INIT(&re->v_dumpop);
7600
7601 while ((opt = getopt_long(argc, argv, "AacDdegHhIi:lNnp:rSstuVvWw::x:",
7602 longopts, NULL)) != -1) {
7603 switch(opt) {
7604 case '?':
7605 readelf_usage(EXIT_SUCCESS);
7606 break;
7607 case 'A':
7608 re->options |= RE_AA;
7609 break;
7610 case 'a':
7611 re->options |= RE_AA | RE_D | RE_G | RE_H | RE_II |
7612 RE_L | RE_R | RE_SS | RE_S | RE_VV;
7613 break;
7614 case 'c':
7615 re->options |= RE_C;
7616 break;
7617 case 'D':
7618 re->options |= RE_DD;
7619 break;
7620 case 'd':
7621 re->options |= RE_D;
7622 break;
7623 case 'e':
7624 re->options |= RE_H | RE_L | RE_SS;
7625 break;
7626 case 'g':
7627 re->options |= RE_G;
7628 break;
7629 case 'H':
7630 readelf_usage(EXIT_SUCCESS);
7631 break;
7632 case 'h':
7633 re->options |= RE_H;
7634 break;
7635 case 'I':
7636 re->options |= RE_II;
7637 break;
7638 case 'i':
7639 /* Not implemented yet. */
7640 break;
7641 case 'l':
7642 re->options |= RE_L;
7643 break;
7644 case 'N':
7645 re->options |= RE_NN;
7646 break;
7647 case 'n':
7648 re->options |= RE_N;
7649 break;
7650 case 'p':
7651 re->options |= RE_P;
7652 si = strtoul(optarg, &ep, 10);
7653 if (*ep == '\0')
7654 add_dumpop(re, (size_t) si, NULL, STR_DUMP,
7655 DUMP_BY_INDEX);
7656 else
7657 add_dumpop(re, 0, optarg, STR_DUMP,
7658 DUMP_BY_NAME);
7659 break;
7660 case 'r':
7661 re->options |= RE_R;
7662 break;
7663 case 'S':
7664 re->options |= RE_SS;
7665 break;
7666 case 's':
7667 re->options |= RE_S;
7668 break;
7669 case 't':
7670 re->options |= RE_T;
7671 break;
7672 case 'u':
7673 re->options |= RE_U;
7674 break;
7675 case 'V':
7676 re->options |= RE_VV;
7677 break;
7678 case 'v':
7679 readelf_version();
7680 break;
7681 case 'W':
7682 re->options |= RE_WW;
7683 break;
7684 case 'w':
7685 re->options |= RE_W;
7686 parse_dwarf_op_short(re, optarg);
7687 break;
7688 case 'x':
7689 re->options |= RE_X;
7690 si = strtoul(optarg, &ep, 10);
7691 if (*ep == '\0')
7692 add_dumpop(re, (size_t) si, NULL, HEX_DUMP,
7693 DUMP_BY_INDEX);
7694 else
7695 add_dumpop(re, 0, optarg, HEX_DUMP,
7696 DUMP_BY_NAME);
7697 break;
7698 case OPTION_DEBUG_DUMP:
7699 re->options |= RE_W;
7700 parse_dwarf_op_long(re, optarg);
7701 }
7702 }
7703
7704 argv += optind;
7705 argc -= optind;
7706
7707 if (argc == 0 || re->options == 0)
7708 readelf_usage(EXIT_FAILURE);
7709
7710 if (argc > 1)
7711 re->flags |= DISPLAY_FILENAME;
7712
7713 if (elf_version(EV_CURRENT) == EV_NONE)
7714 errx(EXIT_FAILURE, "ELF library initialization failed: %s",
7715 elf_errmsg(-1));
7716
7717 for (i = 0; i < argc; i++) {
7718 re->filename = argv[i];
7719 dump_object(re);
7720 }
7721
7722 exit(EXIT_SUCCESS);
7723 }
7724