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 3250 2015-10-06 13:56:15Z emaste $"); 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); 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); 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(void); 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 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); 362 static uint64_t _decode_uleb128(uint8_t **dp); 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 * 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 default: 962 if (sbind >= STB_LOOS && sbind <= STB_HIOS) 963 return "OS"; 964 else if (sbind >= STB_LOPROC && sbind <= STB_HIPROC) 965 return "PROC"; 966 else 967 snprintf(s_sbind, sizeof(s_sbind), "<unknown: %#x>", 968 sbind); 969 return (s_sbind); 970 } 971 } 972 973 static const char * 974 st_type(unsigned int stype) 975 { 976 static char s_stype[32]; 977 978 switch (stype) { 979 case STT_NOTYPE: return "NOTYPE"; 980 case STT_OBJECT: return "OBJECT"; 981 case STT_FUNC: return "FUNC"; 982 case STT_SECTION: return "SECTION"; 983 case STT_FILE: return "FILE"; 984 case STT_COMMON: return "COMMON"; 985 case STT_TLS: return "TLS"; 986 default: 987 if (stype >= STT_LOOS && stype <= STT_HIOS) 988 snprintf(s_stype, sizeof(s_stype), "OS+%#x", 989 stype - STT_LOOS); 990 else if (stype >= STT_LOPROC && stype <= STT_HIPROC) 991 snprintf(s_stype, sizeof(s_stype), "PROC+%#x", 992 stype - STT_LOPROC); 993 else 994 snprintf(s_stype, sizeof(s_stype), "<unknown: %#x>", 995 stype); 996 return (s_stype); 997 } 998 } 999 1000 static const char * 1001 st_vis(unsigned int svis) 1002 { 1003 static char s_svis[32]; 1004 1005 switch(svis) { 1006 case STV_DEFAULT: return "DEFAULT"; 1007 case STV_INTERNAL: return "INTERNAL"; 1008 case STV_HIDDEN: return "HIDDEN"; 1009 case STV_PROTECTED: return "PROTECTED"; 1010 default: 1011 snprintf(s_svis, sizeof(s_svis), "<unknown: %#x>", svis); 1012 return (s_svis); 1013 } 1014 } 1015 1016 static const char * 1017 st_shndx(unsigned int shndx) 1018 { 1019 static char s_shndx[32]; 1020 1021 switch (shndx) { 1022 case SHN_UNDEF: return "UND"; 1023 case SHN_ABS: return "ABS"; 1024 case SHN_COMMON: return "COM"; 1025 default: 1026 if (shndx >= SHN_LOPROC && shndx <= SHN_HIPROC) 1027 return "PRC"; 1028 else if (shndx >= SHN_LOOS && shndx <= SHN_HIOS) 1029 return "OS"; 1030 else 1031 snprintf(s_shndx, sizeof(s_shndx), "%u", shndx); 1032 return (s_shndx); 1033 } 1034 } 1035 1036 static struct { 1037 const char *ln; 1038 char sn; 1039 int value; 1040 } section_flag[] = { 1041 {"WRITE", 'W', SHF_WRITE}, 1042 {"ALLOC", 'A', SHF_ALLOC}, 1043 {"EXEC", 'X', SHF_EXECINSTR}, 1044 {"MERGE", 'M', SHF_MERGE}, 1045 {"STRINGS", 'S', SHF_STRINGS}, 1046 {"INFO LINK", 'I', SHF_INFO_LINK}, 1047 {"OS NONCONF", 'O', SHF_OS_NONCONFORMING}, 1048 {"GROUP", 'G', SHF_GROUP}, 1049 {"TLS", 'T', SHF_TLS}, 1050 {NULL, 0, 0} 1051 }; 1052 1053 static const char * 1054 r_type(unsigned int mach, unsigned int type) 1055 { 1056 switch(mach) { 1057 case EM_NONE: return ""; 1058 case EM_386: 1059 case EM_IAMCU: 1060 switch(type) { 1061 case 0: return "R_386_NONE"; 1062 case 1: return "R_386_32"; 1063 case 2: return "R_386_PC32"; 1064 case 3: return "R_386_GOT32"; 1065 case 4: return "R_386_PLT32"; 1066 case 5: return "R_386_COPY"; 1067 case 6: return "R_386_GLOB_DAT"; 1068 case 7: return "R_386_JMP_SLOT"; 1069 case 8: return "R_386_RELATIVE"; 1070 case 9: return "R_386_GOTOFF"; 1071 case 10: return "R_386_GOTPC"; 1072 case 14: return "R_386_TLS_TPOFF"; 1073 case 15: return "R_386_TLS_IE"; 1074 case 16: return "R_386_TLS_GOTIE"; 1075 case 17: return "R_386_TLS_LE"; 1076 case 18: return "R_386_TLS_GD"; 1077 case 19: return "R_386_TLS_LDM"; 1078 case 24: return "R_386_TLS_GD_32"; 1079 case 25: return "R_386_TLS_GD_PUSH"; 1080 case 26: return "R_386_TLS_GD_CALL"; 1081 case 27: return "R_386_TLS_GD_POP"; 1082 case 28: return "R_386_TLS_LDM_32"; 1083 case 29: return "R_386_TLS_LDM_PUSH"; 1084 case 30: return "R_386_TLS_LDM_CALL"; 1085 case 31: return "R_386_TLS_LDM_POP"; 1086 case 32: return "R_386_TLS_LDO_32"; 1087 case 33: return "R_386_TLS_IE_32"; 1088 case 34: return "R_386_TLS_LE_32"; 1089 case 35: return "R_386_TLS_DTPMOD32"; 1090 case 36: return "R_386_TLS_DTPOFF32"; 1091 case 37: return "R_386_TLS_TPOFF32"; 1092 default: return ""; 1093 } 1094 case EM_AARCH64: 1095 switch(type) { 1096 case 0: return "R_AARCH64_NONE"; 1097 case 257: return "R_AARCH64_ABS64"; 1098 case 258: return "R_AARCH64_ABS32"; 1099 case 259: return "R_AARCH64_ABS16"; 1100 case 260: return "R_AARCH64_PREL64"; 1101 case 261: return "R_AARCH64_PREL32"; 1102 case 262: return "R_AARCH64_PREL16"; 1103 case 263: return "R_AARCH64_MOVW_UABS_G0"; 1104 case 264: return "R_AARCH64_MOVW_UABS_G0_NC"; 1105 case 265: return "R_AARCH64_MOVW_UABS_G1"; 1106 case 266: return "R_AARCH64_MOVW_UABS_G1_NC"; 1107 case 267: return "R_AARCH64_MOVW_UABS_G2"; 1108 case 268: return "R_AARCH64_MOVW_UABS_G2_NC"; 1109 case 269: return "R_AARCH64_MOVW_UABS_G3"; 1110 case 270: return "R_AARCH64_MOVW_SABS_G0"; 1111 case 271: return "R_AARCH64_MOVW_SABS_G1"; 1112 case 272: return "R_AARCH64_MOVW_SABS_G2"; 1113 case 273: return "R_AARCH64_LD_PREL_LO19"; 1114 case 274: return "R_AARCH64_ADR_PREL_LO21"; 1115 case 275: return "R_AARCH64_ADR_PREL_PG_HI21"; 1116 case 276: return "R_AARCH64_ADR_PREL_PG_HI21_NC"; 1117 case 277: return "R_AARCH64_ADD_ABS_LO12_NC"; 1118 case 278: return "R_AARCH64_LDST8_ABS_LO12_NC"; 1119 case 279: return "R_AARCH64_TSTBR14"; 1120 case 280: return "R_AARCH64_CONDBR19"; 1121 case 282: return "R_AARCH64_JUMP26"; 1122 case 283: return "R_AARCH64_CALL26"; 1123 case 284: return "R_AARCH64_LDST16_ABS_LO12_NC"; 1124 case 285: return "R_AARCH64_LDST32_ABS_LO12_NC"; 1125 case 286: return "R_AARCH64_LDST64_ABS_LO12_NC"; 1126 case 287: return "R_AARCH64_MOVW_PREL_G0"; 1127 case 288: return "R_AARCH64_MOVW_PREL_G0_NC"; 1128 case 289: return "R_AARCH64_MOVW_PREL_G1"; 1129 case 290: return "R_AARCH64_MOVW_PREL_G1_NC"; 1130 case 291: return "R_AARCH64_MOVW_PREL_G2"; 1131 case 292: return "R_AARCH64_MOVW_PREL_G2_NC"; 1132 case 293: return "R_AARCH64_MOVW_PREL_G3"; 1133 case 299: return "R_AARCH64_LDST128_ABS_LO12_NC"; 1134 case 300: return "R_AARCH64_MOVW_GOTOFF_G0"; 1135 case 301: return "R_AARCH64_MOVW_GOTOFF_G0_NC"; 1136 case 302: return "R_AARCH64_MOVW_GOTOFF_G1"; 1137 case 303: return "R_AARCH64_MOVW_GOTOFF_G1_NC"; 1138 case 304: return "R_AARCH64_MOVW_GOTOFF_G2"; 1139 case 305: return "R_AARCH64_MOVW_GOTOFF_G2_NC"; 1140 case 306: return "R_AARCH64_MOVW_GOTOFF_G3"; 1141 case 307: return "R_AARCH64_GOTREL64"; 1142 case 308: return "R_AARCH64_GOTREL32"; 1143 case 309: return "R_AARCH64_GOT_LD_PREL19"; 1144 case 310: return "R_AARCH64_LD64_GOTOFF_LO15"; 1145 case 311: return "R_AARCH64_ADR_GOT_PAGE"; 1146 case 312: return "R_AARCH64_LD64_GOT_LO12_NC"; 1147 case 313: return "R_AARCH64_LD64_GOTPAGE_LO15"; 1148 case 1024: return "R_AARCH64_COPY"; 1149 case 1025: return "R_AARCH64_GLOB_DAT"; 1150 case 1026: return "R_AARCH64_JUMP_SLOT"; 1151 case 1027: return "R_AARCH64_RELATIVE"; 1152 case 1028: return "R_AARCH64_TLS_DTPREL64"; 1153 case 1029: return "R_AARCH64_TLS_DTPMOD64"; 1154 case 1030: return "R_AARCH64_TLS_TPREL64"; 1155 case 1031: return "R_AARCH64_TLSDESC"; 1156 case 1032: return "R_AARCH64_IRELATIVE"; 1157 default: return ""; 1158 } 1159 case EM_ARM: 1160 switch(type) { 1161 case 0: return "R_ARM_NONE"; 1162 case 1: return "R_ARM_PC24"; 1163 case 2: return "R_ARM_ABS32"; 1164 case 3: return "R_ARM_REL32"; 1165 case 4: return "R_ARM_PC13"; 1166 case 5: return "R_ARM_ABS16"; 1167 case 6: return "R_ARM_ABS12"; 1168 case 7: return "R_ARM_THM_ABS5"; 1169 case 8: return "R_ARM_ABS8"; 1170 case 9: return "R_ARM_SBREL32"; 1171 case 10: return "R_ARM_THM_PC22"; 1172 case 11: return "R_ARM_THM_PC8"; 1173 case 12: return "R_ARM_AMP_VCALL9"; 1174 case 13: return "R_ARM_SWI24"; 1175 case 14: return "R_ARM_THM_SWI8"; 1176 case 15: return "R_ARM_XPC25"; 1177 case 16: return "R_ARM_THM_XPC22"; 1178 case 20: return "R_ARM_COPY"; 1179 case 21: return "R_ARM_GLOB_DAT"; 1180 case 22: return "R_ARM_JUMP_SLOT"; 1181 case 23: return "R_ARM_RELATIVE"; 1182 case 24: return "R_ARM_GOTOFF"; 1183 case 25: return "R_ARM_GOTPC"; 1184 case 26: return "R_ARM_GOT32"; 1185 case 27: return "R_ARM_PLT32"; 1186 case 100: return "R_ARM_GNU_VTENTRY"; 1187 case 101: return "R_ARM_GNU_VTINHERIT"; 1188 case 250: return "R_ARM_RSBREL32"; 1189 case 251: return "R_ARM_THM_RPC22"; 1190 case 252: return "R_ARM_RREL32"; 1191 case 253: return "R_ARM_RABS32"; 1192 case 254: return "R_ARM_RPC24"; 1193 case 255: return "R_ARM_RBASE"; 1194 default: return ""; 1195 } 1196 case EM_IA_64: 1197 switch(type) { 1198 case 0: return "R_IA_64_NONE"; 1199 case 33: return "R_IA_64_IMM14"; 1200 case 34: return "R_IA_64_IMM22"; 1201 case 35: return "R_IA_64_IMM64"; 1202 case 36: return "R_IA_64_DIR32MSB"; 1203 case 37: return "R_IA_64_DIR32LSB"; 1204 case 38: return "R_IA_64_DIR64MSB"; 1205 case 39: return "R_IA_64_DIR64LSB"; 1206 case 42: return "R_IA_64_GPREL22"; 1207 case 43: return "R_IA_64_GPREL64I"; 1208 case 44: return "R_IA_64_GPREL32MSB"; 1209 case 45: return "R_IA_64_GPREL32LSB"; 1210 case 46: return "R_IA_64_GPREL64MSB"; 1211 case 47: return "R_IA_64_GPREL64LSB"; 1212 case 50: return "R_IA_64_LTOFF22"; 1213 case 51: return "R_IA_64_LTOFF64I"; 1214 case 58: return "R_IA_64_PLTOFF22"; 1215 case 59: return "R_IA_64_PLTOFF64I"; 1216 case 62: return "R_IA_64_PLTOFF64MSB"; 1217 case 63: return "R_IA_64_PLTOFF64LSB"; 1218 case 67: return "R_IA_64_FPTR64I"; 1219 case 68: return "R_IA_64_FPTR32MSB"; 1220 case 69: return "R_IA_64_FPTR32LSB"; 1221 case 70: return "R_IA_64_FPTR64MSB"; 1222 case 71: return "R_IA_64_FPTR64LSB"; 1223 case 72: return "R_IA_64_PCREL60B"; 1224 case 73: return "R_IA_64_PCREL21B"; 1225 case 74: return "R_IA_64_PCREL21M"; 1226 case 75: return "R_IA_64_PCREL21F"; 1227 case 76: return "R_IA_64_PCREL32MSB"; 1228 case 77: return "R_IA_64_PCREL32LSB"; 1229 case 78: return "R_IA_64_PCREL64MSB"; 1230 case 79: return "R_IA_64_PCREL64LSB"; 1231 case 82: return "R_IA_64_LTOFF_FPTR22"; 1232 case 83: return "R_IA_64_LTOFF_FPTR64I"; 1233 case 84: return "R_IA_64_LTOFF_FPTR32MSB"; 1234 case 85: return "R_IA_64_LTOFF_FPTR32LSB"; 1235 case 86: return "R_IA_64_LTOFF_FPTR64MSB"; 1236 case 87: return "R_IA_64_LTOFF_FPTR64LSB"; 1237 case 92: return "R_IA_64_SEGREL32MSB"; 1238 case 93: return "R_IA_64_SEGREL32LSB"; 1239 case 94: return "R_IA_64_SEGREL64MSB"; 1240 case 95: return "R_IA_64_SEGREL64LSB"; 1241 case 100: return "R_IA_64_SECREL32MSB"; 1242 case 101: return "R_IA_64_SECREL32LSB"; 1243 case 102: return "R_IA_64_SECREL64MSB"; 1244 case 103: return "R_IA_64_SECREL64LSB"; 1245 case 108: return "R_IA_64_REL32MSB"; 1246 case 109: return "R_IA_64_REL32LSB"; 1247 case 110: return "R_IA_64_REL64MSB"; 1248 case 111: return "R_IA_64_REL64LSB"; 1249 case 116: return "R_IA_64_LTV32MSB"; 1250 case 117: return "R_IA_64_LTV32LSB"; 1251 case 118: return "R_IA_64_LTV64MSB"; 1252 case 119: return "R_IA_64_LTV64LSB"; 1253 case 121: return "R_IA_64_PCREL21BI"; 1254 case 122: return "R_IA_64_PCREL22"; 1255 case 123: return "R_IA_64_PCREL64I"; 1256 case 128: return "R_IA_64_IPLTMSB"; 1257 case 129: return "R_IA_64_IPLTLSB"; 1258 case 133: return "R_IA_64_SUB"; 1259 case 134: return "R_IA_64_LTOFF22X"; 1260 case 135: return "R_IA_64_LDXMOV"; 1261 case 145: return "R_IA_64_TPREL14"; 1262 case 146: return "R_IA_64_TPREL22"; 1263 case 147: return "R_IA_64_TPREL64I"; 1264 case 150: return "R_IA_64_TPREL64MSB"; 1265 case 151: return "R_IA_64_TPREL64LSB"; 1266 case 154: return "R_IA_64_LTOFF_TPREL22"; 1267 case 166: return "R_IA_64_DTPMOD64MSB"; 1268 case 167: return "R_IA_64_DTPMOD64LSB"; 1269 case 170: return "R_IA_64_LTOFF_DTPMOD22"; 1270 case 177: return "R_IA_64_DTPREL14"; 1271 case 178: return "R_IA_64_DTPREL22"; 1272 case 179: return "R_IA_64_DTPREL64I"; 1273 case 180: return "R_IA_64_DTPREL32MSB"; 1274 case 181: return "R_IA_64_DTPREL32LSB"; 1275 case 182: return "R_IA_64_DTPREL64MSB"; 1276 case 183: return "R_IA_64_DTPREL64LSB"; 1277 case 186: return "R_IA_64_LTOFF_DTPREL22"; 1278 default: return ""; 1279 } 1280 case EM_MIPS: 1281 switch(type) { 1282 case 0: return "R_MIPS_NONE"; 1283 case 1: return "R_MIPS_16"; 1284 case 2: return "R_MIPS_32"; 1285 case 3: return "R_MIPS_REL32"; 1286 case 4: return "R_MIPS_26"; 1287 case 5: return "R_MIPS_HI16"; 1288 case 6: return "R_MIPS_LO16"; 1289 case 7: return "R_MIPS_GPREL16"; 1290 case 8: return "R_MIPS_LITERAL"; 1291 case 9: return "R_MIPS_GOT16"; 1292 case 10: return "R_MIPS_PC16"; 1293 case 11: return "R_MIPS_CALL16"; 1294 case 12: return "R_MIPS_GPREL32"; 1295 case 21: return "R_MIPS_GOTHI16"; 1296 case 22: return "R_MIPS_GOTLO16"; 1297 case 30: return "R_MIPS_CALLHI16"; 1298 case 31: return "R_MIPS_CALLLO16"; 1299 case 38: return "R_MIPS_TLS_DTPMOD32"; 1300 case 39: return "R_MIPS_TLS_DTPREL32"; 1301 case 40: return "R_MIPS_TLS_DTPMOD64"; 1302 case 41: return "R_MIPS_TLS_DTPREL64"; 1303 case 42: return "R_MIPS_TLS_GD"; 1304 case 43: return "R_MIPS_TLS_LDM"; 1305 case 44: return "R_MIPS_TLS_DTPREL_HI16"; 1306 case 45: return "R_MIPS_TLS_DTPREL_LO16"; 1307 case 46: return "R_MIPS_TLS_GOTTPREL"; 1308 case 47: return "R_MIPS_TLS_TPREL32"; 1309 case 48: return "R_MIPS_TLS_TPREL64"; 1310 case 49: return "R_MIPS_TLS_TPREL_HI16"; 1311 case 50: return "R_MIPS_TLS_TPREL_LO16"; 1312 1313 default: return ""; 1314 } 1315 case EM_PPC: 1316 switch(type) { 1317 case 0: return "R_PPC_NONE"; 1318 case 1: return "R_PPC_ADDR32"; 1319 case 2: return "R_PPC_ADDR24"; 1320 case 3: return "R_PPC_ADDR16"; 1321 case 4: return "R_PPC_ADDR16_LO"; 1322 case 5: return "R_PPC_ADDR16_HI"; 1323 case 6: return "R_PPC_ADDR16_HA"; 1324 case 7: return "R_PPC_ADDR14"; 1325 case 8: return "R_PPC_ADDR14_BRTAKEN"; 1326 case 9: return "R_PPC_ADDR14_BRNTAKEN"; 1327 case 10: return "R_PPC_REL24"; 1328 case 11: return "R_PPC_REL14"; 1329 case 12: return "R_PPC_REL14_BRTAKEN"; 1330 case 13: return "R_PPC_REL14_BRNTAKEN"; 1331 case 14: return "R_PPC_GOT16"; 1332 case 15: return "R_PPC_GOT16_LO"; 1333 case 16: return "R_PPC_GOT16_HI"; 1334 case 17: return "R_PPC_GOT16_HA"; 1335 case 18: return "R_PPC_PLTREL24"; 1336 case 19: return "R_PPC_COPY"; 1337 case 20: return "R_PPC_GLOB_DAT"; 1338 case 21: return "R_PPC_JMP_SLOT"; 1339 case 22: return "R_PPC_RELATIVE"; 1340 case 23: return "R_PPC_LOCAL24PC"; 1341 case 24: return "R_PPC_UADDR32"; 1342 case 25: return "R_PPC_UADDR16"; 1343 case 26: return "R_PPC_REL32"; 1344 case 27: return "R_PPC_PLT32"; 1345 case 28: return "R_PPC_PLTREL32"; 1346 case 29: return "R_PPC_PLT16_LO"; 1347 case 30: return "R_PPC_PLT16_HI"; 1348 case 31: return "R_PPC_PLT16_HA"; 1349 case 32: return "R_PPC_SDAREL16"; 1350 case 33: return "R_PPC_SECTOFF"; 1351 case 34: return "R_PPC_SECTOFF_LO"; 1352 case 35: return "R_PPC_SECTOFF_HI"; 1353 case 36: return "R_PPC_SECTOFF_HA"; 1354 case 67: return "R_PPC_TLS"; 1355 case 68: return "R_PPC_DTPMOD32"; 1356 case 69: return "R_PPC_TPREL16"; 1357 case 70: return "R_PPC_TPREL16_LO"; 1358 case 71: return "R_PPC_TPREL16_HI"; 1359 case 72: return "R_PPC_TPREL16_HA"; 1360 case 73: return "R_PPC_TPREL32"; 1361 case 74: return "R_PPC_DTPREL16"; 1362 case 75: return "R_PPC_DTPREL16_LO"; 1363 case 76: return "R_PPC_DTPREL16_HI"; 1364 case 77: return "R_PPC_DTPREL16_HA"; 1365 case 78: return "R_PPC_DTPREL32"; 1366 case 79: return "R_PPC_GOT_TLSGD16"; 1367 case 80: return "R_PPC_GOT_TLSGD16_LO"; 1368 case 81: return "R_PPC_GOT_TLSGD16_HI"; 1369 case 82: return "R_PPC_GOT_TLSGD16_HA"; 1370 case 83: return "R_PPC_GOT_TLSLD16"; 1371 case 84: return "R_PPC_GOT_TLSLD16_LO"; 1372 case 85: return "R_PPC_GOT_TLSLD16_HI"; 1373 case 86: return "R_PPC_GOT_TLSLD16_HA"; 1374 case 87: return "R_PPC_GOT_TPREL16"; 1375 case 88: return "R_PPC_GOT_TPREL16_LO"; 1376 case 89: return "R_PPC_GOT_TPREL16_HI"; 1377 case 90: return "R_PPC_GOT_TPREL16_HA"; 1378 case 101: return "R_PPC_EMB_NADDR32"; 1379 case 102: return "R_PPC_EMB_NADDR16"; 1380 case 103: return "R_PPC_EMB_NADDR16_LO"; 1381 case 104: return "R_PPC_EMB_NADDR16_HI"; 1382 case 105: return "R_PPC_EMB_NADDR16_HA"; 1383 case 106: return "R_PPC_EMB_SDAI16"; 1384 case 107: return "R_PPC_EMB_SDA2I16"; 1385 case 108: return "R_PPC_EMB_SDA2REL"; 1386 case 109: return "R_PPC_EMB_SDA21"; 1387 case 110: return "R_PPC_EMB_MRKREF"; 1388 case 111: return "R_PPC_EMB_RELSEC16"; 1389 case 112: return "R_PPC_EMB_RELST_LO"; 1390 case 113: return "R_PPC_EMB_RELST_HI"; 1391 case 114: return "R_PPC_EMB_RELST_HA"; 1392 case 115: return "R_PPC_EMB_BIT_FLD"; 1393 case 116: return "R_PPC_EMB_RELSDA"; 1394 default: return ""; 1395 } 1396 case EM_RISCV: 1397 switch(type) { 1398 case 0: return "R_RISCV_NONE"; 1399 case 1: return "R_RISCV_32"; 1400 case 2: return "R_RISCV_64"; 1401 case 3: return "R_RISCV_RELATIVE"; 1402 case 4: return "R_RISCV_COPY"; 1403 case 5: return "R_RISCV_JUMP_SLOT"; 1404 case 6: return "R_RISCV_TLS_DTPMOD32"; 1405 case 7: return "R_RISCV_TLS_DTPMOD64"; 1406 case 8: return "R_RISCV_TLS_DTPREL32"; 1407 case 9: return "R_RISCV_TLS_DTPREL64"; 1408 case 10: return "R_RISCV_TLS_TPREL32"; 1409 case 11: return "R_RISCV_TLS_TPREL64"; 1410 case 16: return "R_RISCV_BRANCH"; 1411 case 17: return "R_RISCV_JAL"; 1412 case 18: return "R_RISCV_CALL"; 1413 case 19: return "R_RISCV_CALL_PLT"; 1414 case 20: return "R_RISCV_GOT_HI20"; 1415 case 21: return "R_RISCV_TLS_GOT_HI20"; 1416 case 22: return "R_RISCV_TLS_GD_HI20"; 1417 case 23: return "R_RISCV_PCREL_HI20"; 1418 case 24: return "R_RISCV_PCREL_LO12_I"; 1419 case 25: return "R_RISCV_PCREL_LO12_S"; 1420 case 26: return "R_RISCV_HI20"; 1421 case 27: return "R_RISCV_LO12_I"; 1422 case 28: return "R_RISCV_LO12_S"; 1423 case 29: return "R_RISCV_TPREL_HI20"; 1424 case 30: return "R_RISCV_TPREL_LO12_I"; 1425 case 31: return "R_RISCV_TPREL_LO12_S"; 1426 case 32: return "R_RISCV_TPREL_ADD"; 1427 case 33: return "R_RISCV_ADD8"; 1428 case 34: return "R_RISCV_ADD16"; 1429 case 35: return "R_RISCV_ADD32"; 1430 case 36: return "R_RISCV_ADD64"; 1431 case 37: return "R_RISCV_SUB8"; 1432 case 38: return "R_RISCV_SUB16"; 1433 case 39: return "R_RISCV_SUB32"; 1434 case 40: return "R_RISCV_SUB64"; 1435 case 41: return "R_RISCV_GNU_VTINHERIT"; 1436 case 42: return "R_RISCV_GNU_VTENTRY"; 1437 case 43: return "R_RISCV_ALIGN"; 1438 case 44: return "R_RISCV_RVC_BRANCH"; 1439 case 45: return "R_RISCV_RVC_JUMP"; 1440 } 1441 case EM_SPARC: 1442 case EM_SPARCV9: 1443 switch(type) { 1444 case 0: return "R_SPARC_NONE"; 1445 case 1: return "R_SPARC_8"; 1446 case 2: return "R_SPARC_16"; 1447 case 3: return "R_SPARC_32"; 1448 case 4: return "R_SPARC_DISP8"; 1449 case 5: return "R_SPARC_DISP16"; 1450 case 6: return "R_SPARC_DISP32"; 1451 case 7: return "R_SPARC_WDISP30"; 1452 case 8: return "R_SPARC_WDISP22"; 1453 case 9: return "R_SPARC_HI22"; 1454 case 10: return "R_SPARC_22"; 1455 case 11: return "R_SPARC_13"; 1456 case 12: return "R_SPARC_LO10"; 1457 case 13: return "R_SPARC_GOT10"; 1458 case 14: return "R_SPARC_GOT13"; 1459 case 15: return "R_SPARC_GOT22"; 1460 case 16: return "R_SPARC_PC10"; 1461 case 17: return "R_SPARC_PC22"; 1462 case 18: return "R_SPARC_WPLT30"; 1463 case 19: return "R_SPARC_COPY"; 1464 case 20: return "R_SPARC_GLOB_DAT"; 1465 case 21: return "R_SPARC_JMP_SLOT"; 1466 case 22: return "R_SPARC_RELATIVE"; 1467 case 23: return "R_SPARC_UA32"; 1468 case 24: return "R_SPARC_PLT32"; 1469 case 25: return "R_SPARC_HIPLT22"; 1470 case 26: return "R_SPARC_LOPLT10"; 1471 case 27: return "R_SPARC_PCPLT32"; 1472 case 28: return "R_SPARC_PCPLT22"; 1473 case 29: return "R_SPARC_PCPLT10"; 1474 case 30: return "R_SPARC_10"; 1475 case 31: return "R_SPARC_11"; 1476 case 32: return "R_SPARC_64"; 1477 case 33: return "R_SPARC_OLO10"; 1478 case 34: return "R_SPARC_HH22"; 1479 case 35: return "R_SPARC_HM10"; 1480 case 36: return "R_SPARC_LM22"; 1481 case 37: return "R_SPARC_PC_HH22"; 1482 case 38: return "R_SPARC_PC_HM10"; 1483 case 39: return "R_SPARC_PC_LM22"; 1484 case 40: return "R_SPARC_WDISP16"; 1485 case 41: return "R_SPARC_WDISP19"; 1486 case 42: return "R_SPARC_GLOB_JMP"; 1487 case 43: return "R_SPARC_7"; 1488 case 44: return "R_SPARC_5"; 1489 case 45: return "R_SPARC_6"; 1490 case 46: return "R_SPARC_DISP64"; 1491 case 47: return "R_SPARC_PLT64"; 1492 case 48: return "R_SPARC_HIX22"; 1493 case 49: return "R_SPARC_LOX10"; 1494 case 50: return "R_SPARC_H44"; 1495 case 51: return "R_SPARC_M44"; 1496 case 52: return "R_SPARC_L44"; 1497 case 53: return "R_SPARC_REGISTER"; 1498 case 54: return "R_SPARC_UA64"; 1499 case 55: return "R_SPARC_UA16"; 1500 case 56: return "R_SPARC_TLS_GD_HI22"; 1501 case 57: return "R_SPARC_TLS_GD_LO10"; 1502 case 58: return "R_SPARC_TLS_GD_ADD"; 1503 case 59: return "R_SPARC_TLS_GD_CALL"; 1504 case 60: return "R_SPARC_TLS_LDM_HI22"; 1505 case 61: return "R_SPARC_TLS_LDM_LO10"; 1506 case 62: return "R_SPARC_TLS_LDM_ADD"; 1507 case 63: return "R_SPARC_TLS_LDM_CALL"; 1508 case 64: return "R_SPARC_TLS_LDO_HIX22"; 1509 case 65: return "R_SPARC_TLS_LDO_LOX10"; 1510 case 66: return "R_SPARC_TLS_LDO_ADD"; 1511 case 67: return "R_SPARC_TLS_IE_HI22"; 1512 case 68: return "R_SPARC_TLS_IE_LO10"; 1513 case 69: return "R_SPARC_TLS_IE_LD"; 1514 case 70: return "R_SPARC_TLS_IE_LDX"; 1515 case 71: return "R_SPARC_TLS_IE_ADD"; 1516 case 72: return "R_SPARC_TLS_LE_HIX22"; 1517 case 73: return "R_SPARC_TLS_LE_LOX10"; 1518 case 74: return "R_SPARC_TLS_DTPMOD32"; 1519 case 75: return "R_SPARC_TLS_DTPMOD64"; 1520 case 76: return "R_SPARC_TLS_DTPOFF32"; 1521 case 77: return "R_SPARC_TLS_DTPOFF64"; 1522 case 78: return "R_SPARC_TLS_TPOFF32"; 1523 case 79: return "R_SPARC_TLS_TPOFF64"; 1524 default: return ""; 1525 } 1526 case EM_X86_64: 1527 switch(type) { 1528 case 0: return "R_X86_64_NONE"; 1529 case 1: return "R_X86_64_64"; 1530 case 2: return "R_X86_64_PC32"; 1531 case 3: return "R_X86_64_GOT32"; 1532 case 4: return "R_X86_64_PLT32"; 1533 case 5: return "R_X86_64_COPY"; 1534 case 6: return "R_X86_64_GLOB_DAT"; 1535 case 7: return "R_X86_64_JMP_SLOT"; 1536 case 8: return "R_X86_64_RELATIVE"; 1537 case 9: return "R_X86_64_GOTPCREL"; 1538 case 10: return "R_X86_64_32"; 1539 case 11: return "R_X86_64_32S"; 1540 case 12: return "R_X86_64_16"; 1541 case 13: return "R_X86_64_PC16"; 1542 case 14: return "R_X86_64_8"; 1543 case 15: return "R_X86_64_PC8"; 1544 case 16: return "R_X86_64_DTPMOD64"; 1545 case 17: return "R_X86_64_DTPOFF64"; 1546 case 18: return "R_X86_64_TPOFF64"; 1547 case 19: return "R_X86_64_TLSGD"; 1548 case 20: return "R_X86_64_TLSLD"; 1549 case 21: return "R_X86_64_DTPOFF32"; 1550 case 22: return "R_X86_64_GOTTPOFF"; 1551 case 23: return "R_X86_64_TPOFF32"; 1552 case 24: return "R_X86_64_PC64"; 1553 case 25: return "R_X86_64_GOTOFF64"; 1554 case 26: return "R_X86_64_GOTPC32"; 1555 case 27: return "R_X86_64_GOT64"; 1556 case 28: return "R_X86_64_GOTPCREL64"; 1557 case 29: return "R_X86_64_GOTPC64"; 1558 case 30: return "R_X86_64_GOTPLT64"; 1559 case 31: return "R_X86_64_PLTOFF64"; 1560 case 32: return "R_X86_64_SIZE32"; 1561 case 33: return "R_X86_64_SIZE64"; 1562 case 34: return "R_X86_64_GOTPC32_TLSDESC"; 1563 case 35: return "R_X86_64_TLSDESC_CALL"; 1564 case 36: return "R_X86_64_TLSDESC"; 1565 case 37: return "R_X86_64_IRELATIVE"; 1566 default: return ""; 1567 } 1568 default: return ""; 1569 } 1570 } 1571 1572 static const char * 1573 note_type(const char *name, unsigned int et, unsigned int nt) 1574 { 1575 if ((strcmp(name, "CORE") == 0 || strcmp(name, "LINUX") == 0) && 1576 et == ET_CORE) 1577 return note_type_linux_core(nt); 1578 else if (strcmp(name, "FreeBSD") == 0) 1579 if (et == ET_CORE) 1580 return note_type_freebsd_core(nt); 1581 else 1582 return note_type_freebsd(nt); 1583 else if (strcmp(name, "GNU") == 0 && et != ET_CORE) 1584 return note_type_gnu(nt); 1585 else if (strcmp(name, "NetBSD") == 0 && et != ET_CORE) 1586 return note_type_netbsd(nt); 1587 else if (strcmp(name, "OpenBSD") == 0 && et != ET_CORE) 1588 return note_type_openbsd(nt); 1589 else if (strcmp(name, "Xen") == 0 && et != ET_CORE) 1590 return note_type_xen(nt); 1591 return note_type_unknown(nt); 1592 } 1593 1594 static const char * 1595 note_type_freebsd(unsigned int nt) 1596 { 1597 switch (nt) { 1598 case 1: return "NT_FREEBSD_ABI_TAG"; 1599 case 2: return "NT_FREEBSD_NOINIT_TAG"; 1600 case 3: return "NT_FREEBSD_ARCH_TAG"; 1601 default: return (note_type_unknown(nt)); 1602 } 1603 } 1604 1605 static const char * 1606 note_type_freebsd_core(unsigned int nt) 1607 { 1608 switch (nt) { 1609 case 1: return "NT_PRSTATUS"; 1610 case 2: return "NT_FPREGSET"; 1611 case 3: return "NT_PRPSINFO"; 1612 case 7: return "NT_THRMISC"; 1613 case 8: return "NT_PROCSTAT_PROC"; 1614 case 9: return "NT_PROCSTAT_FILES"; 1615 case 10: return "NT_PROCSTAT_VMMAP"; 1616 case 11: return "NT_PROCSTAT_GROUPS"; 1617 case 12: return "NT_PROCSTAT_UMASK"; 1618 case 13: return "NT_PROCSTAT_RLIMIT"; 1619 case 14: return "NT_PROCSTAT_OSREL"; 1620 case 15: return "NT_PROCSTAT_PSSTRINGS"; 1621 case 16: return "NT_PROCSTAT_AUXV"; 1622 case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)"; 1623 default: return (note_type_unknown(nt)); 1624 } 1625 } 1626 1627 static const char * 1628 note_type_linux_core(unsigned int nt) 1629 { 1630 switch (nt) { 1631 case 1: return "NT_PRSTATUS (Process status)"; 1632 case 2: return "NT_FPREGSET (Floating point information)"; 1633 case 3: return "NT_PRPSINFO (Process information)"; 1634 case 4: return "NT_TASKSTRUCT (Task structure)"; 1635 case 6: return "NT_AUXV (Auxiliary vector)"; 1636 case 10: return "NT_PSTATUS (Linux process status)"; 1637 case 12: return "NT_FPREGS (Linux floating point regset)"; 1638 case 13: return "NT_PSINFO (Linux process information)"; 1639 case 16: return "NT_LWPSTATUS (Linux lwpstatus_t type)"; 1640 case 17: return "NT_LWPSINFO (Linux lwpinfo_t type)"; 1641 case 18: return "NT_WIN32PSTATUS (win32_pstatus structure)"; 1642 case 0x100: return "NT_PPC_VMX (ppc Altivec registers)"; 1643 case 0x102: return "NT_PPC_VSX (ppc VSX registers)"; 1644 case 0x202: return "NT_X86_XSTATE (x86 XSAVE extended state)"; 1645 case 0x300: return "NT_S390_HIGH_GPRS (s390 upper register halves)"; 1646 case 0x301: return "NT_S390_TIMER (s390 timer register)"; 1647 case 0x302: return "NT_S390_TODCMP (s390 TOD comparator register)"; 1648 case 0x303: return "NT_S390_TODPREG (s390 TOD programmable register)"; 1649 case 0x304: return "NT_S390_CTRS (s390 control registers)"; 1650 case 0x305: return "NT_S390_PREFIX (s390 prefix register)"; 1651 case 0x400: return "NT_ARM_VFP (arm VFP registers)"; 1652 case 0x46494c45UL: return "NT_FILE (mapped files)"; 1653 case 0x46E62B7FUL: return "NT_PRXFPREG (Linux user_xfpregs structure)"; 1654 case 0x53494749UL: return "NT_SIGINFO (siginfo_t data)"; 1655 default: return (note_type_unknown(nt)); 1656 } 1657 } 1658 1659 static const char * 1660 note_type_gnu(unsigned int nt) 1661 { 1662 switch (nt) { 1663 case 1: return "NT_GNU_ABI_TAG"; 1664 case 2: return "NT_GNU_HWCAP (Hardware capabilities)"; 1665 case 3: return "NT_GNU_BUILD_ID (Build id set by ld(1))"; 1666 case 4: return "NT_GNU_GOLD_VERSION (GNU gold version)"; 1667 default: return (note_type_unknown(nt)); 1668 } 1669 } 1670 1671 static const char * 1672 note_type_netbsd(unsigned int nt) 1673 { 1674 switch (nt) { 1675 case 1: return "NT_NETBSD_IDENT"; 1676 default: return (note_type_unknown(nt)); 1677 } 1678 } 1679 1680 static const char * 1681 note_type_openbsd(unsigned int nt) 1682 { 1683 switch (nt) { 1684 case 1: return "NT_OPENBSD_IDENT"; 1685 default: return (note_type_unknown(nt)); 1686 } 1687 } 1688 1689 static const char * 1690 note_type_unknown(unsigned int nt) 1691 { 1692 static char s_nt[32]; 1693 1694 snprintf(s_nt, sizeof(s_nt), 1695 nt >= 0x100 ? "<unknown: 0x%x>" : "<unknown: %u>", nt); 1696 return (s_nt); 1697 } 1698 1699 static const char * 1700 note_type_xen(unsigned int nt) 1701 { 1702 switch (nt) { 1703 case 0: return "XEN_ELFNOTE_INFO"; 1704 case 1: return "XEN_ELFNOTE_ENTRY"; 1705 case 2: return "XEN_ELFNOTE_HYPERCALL_PAGE"; 1706 case 3: return "XEN_ELFNOTE_VIRT_BASE"; 1707 case 4: return "XEN_ELFNOTE_PADDR_OFFSET"; 1708 case 5: return "XEN_ELFNOTE_XEN_VERSION"; 1709 case 6: return "XEN_ELFNOTE_GUEST_OS"; 1710 case 7: return "XEN_ELFNOTE_GUEST_VERSION"; 1711 case 8: return "XEN_ELFNOTE_LOADER"; 1712 case 9: return "XEN_ELFNOTE_PAE_MODE"; 1713 case 10: return "XEN_ELFNOTE_FEATURES"; 1714 case 11: return "XEN_ELFNOTE_BSD_SYMTAB"; 1715 case 12: return "XEN_ELFNOTE_HV_START_LOW"; 1716 case 13: return "XEN_ELFNOTE_L1_MFN_VALID"; 1717 case 14: return "XEN_ELFNOTE_SUSPEND_CANCEL"; 1718 case 15: return "XEN_ELFNOTE_INIT_P2M"; 1719 case 16: return "XEN_ELFNOTE_MOD_START_PFN"; 1720 case 17: return "XEN_ELFNOTE_SUPPORTED_FEATURES"; 1721 default: return (note_type_unknown(nt)); 1722 } 1723 } 1724 1725 static struct { 1726 const char *name; 1727 int value; 1728 } l_flag[] = { 1729 {"EXACT_MATCH", LL_EXACT_MATCH}, 1730 {"IGNORE_INT_VER", LL_IGNORE_INT_VER}, 1731 {"REQUIRE_MINOR", LL_REQUIRE_MINOR}, 1732 {"EXPORTS", LL_EXPORTS}, 1733 {"DELAY_LOAD", LL_DELAY_LOAD}, 1734 {"DELTA", LL_DELTA}, 1735 {NULL, 0} 1736 }; 1737 1738 static struct mips_option mips_exceptions_option[] = { 1739 {OEX_PAGE0, "PAGE0"}, 1740 {OEX_SMM, "SMM"}, 1741 {OEX_PRECISEFP, "PRECISEFP"}, 1742 {OEX_DISMISS, "DISMISS"}, 1743 {0, NULL} 1744 }; 1745 1746 static struct mips_option mips_pad_option[] = { 1747 {OPAD_PREFIX, "PREFIX"}, 1748 {OPAD_POSTFIX, "POSTFIX"}, 1749 {OPAD_SYMBOL, "SYMBOL"}, 1750 {0, NULL} 1751 }; 1752 1753 static struct mips_option mips_hwpatch_option[] = { 1754 {OHW_R4KEOP, "R4KEOP"}, 1755 {OHW_R8KPFETCH, "R8KPFETCH"}, 1756 {OHW_R5KEOP, "R5KEOP"}, 1757 {OHW_R5KCVTL, "R5KCVTL"}, 1758 {0, NULL} 1759 }; 1760 1761 static struct mips_option mips_hwa_option[] = { 1762 {OHWA0_R4KEOP_CHECKED, "R4KEOP_CHECKED"}, 1763 {OHWA0_R4KEOP_CLEAN, "R4KEOP_CLEAN"}, 1764 {0, NULL} 1765 }; 1766 1767 static struct mips_option mips_hwo_option[] = { 1768 {OHWO0_FIXADE, "FIXADE"}, 1769 {0, NULL} 1770 }; 1771 1772 static const char * 1773 option_kind(uint8_t kind) 1774 { 1775 static char s_kind[32]; 1776 1777 switch (kind) { 1778 case ODK_NULL: return "NULL"; 1779 case ODK_REGINFO: return "REGINFO"; 1780 case ODK_EXCEPTIONS: return "EXCEPTIONS"; 1781 case ODK_PAD: return "PAD"; 1782 case ODK_HWPATCH: return "HWPATCH"; 1783 case ODK_FILL: return "FILL"; 1784 case ODK_TAGS: return "TAGS"; 1785 case ODK_HWAND: return "HWAND"; 1786 case ODK_HWOR: return "HWOR"; 1787 case ODK_GP_GROUP: return "GP_GROUP"; 1788 case ODK_IDENT: return "IDENT"; 1789 default: 1790 snprintf(s_kind, sizeof(s_kind), "<unknown: %u>", kind); 1791 return (s_kind); 1792 } 1793 } 1794 1795 static const char * 1796 top_tag(unsigned int tag) 1797 { 1798 static char s_top_tag[32]; 1799 1800 switch (tag) { 1801 case 1: return "File Attributes"; 1802 case 2: return "Section Attributes"; 1803 case 3: return "Symbol Attributes"; 1804 default: 1805 snprintf(s_top_tag, sizeof(s_top_tag), "Unknown tag: %u", tag); 1806 return (s_top_tag); 1807 } 1808 } 1809 1810 static const char * 1811 aeabi_cpu_arch(uint64_t arch) 1812 { 1813 static char s_cpu_arch[32]; 1814 1815 switch (arch) { 1816 case 0: return "Pre-V4"; 1817 case 1: return "ARM v4"; 1818 case 2: return "ARM v4T"; 1819 case 3: return "ARM v5T"; 1820 case 4: return "ARM v5TE"; 1821 case 5: return "ARM v5TEJ"; 1822 case 6: return "ARM v6"; 1823 case 7: return "ARM v6KZ"; 1824 case 8: return "ARM v6T2"; 1825 case 9: return "ARM v6K"; 1826 case 10: return "ARM v7"; 1827 case 11: return "ARM v6-M"; 1828 case 12: return "ARM v6S-M"; 1829 case 13: return "ARM v7E-M"; 1830 default: 1831 snprintf(s_cpu_arch, sizeof(s_cpu_arch), 1832 "Unknown (%ju)", (uintmax_t) arch); 1833 return (s_cpu_arch); 1834 } 1835 } 1836 1837 static const char * 1838 aeabi_cpu_arch_profile(uint64_t pf) 1839 { 1840 static char s_arch_profile[32]; 1841 1842 switch (pf) { 1843 case 0: 1844 return "Not applicable"; 1845 case 0x41: /* 'A' */ 1846 return "Application Profile"; 1847 case 0x52: /* 'R' */ 1848 return "Real-Time Profile"; 1849 case 0x4D: /* 'M' */ 1850 return "Microcontroller Profile"; 1851 case 0x53: /* 'S' */ 1852 return "Application or Real-Time Profile"; 1853 default: 1854 snprintf(s_arch_profile, sizeof(s_arch_profile), 1855 "Unknown (%ju)\n", (uintmax_t) pf); 1856 return (s_arch_profile); 1857 } 1858 } 1859 1860 static const char * 1861 aeabi_arm_isa(uint64_t ai) 1862 { 1863 static char s_ai[32]; 1864 1865 switch (ai) { 1866 case 0: return "No"; 1867 case 1: return "Yes"; 1868 default: 1869 snprintf(s_ai, sizeof(s_ai), "Unknown (%ju)\n", 1870 (uintmax_t) ai); 1871 return (s_ai); 1872 } 1873 } 1874 1875 static const char * 1876 aeabi_thumb_isa(uint64_t ti) 1877 { 1878 static char s_ti[32]; 1879 1880 switch (ti) { 1881 case 0: return "No"; 1882 case 1: return "16-bit Thumb"; 1883 case 2: return "32-bit Thumb"; 1884 default: 1885 snprintf(s_ti, sizeof(s_ti), "Unknown (%ju)\n", 1886 (uintmax_t) ti); 1887 return (s_ti); 1888 } 1889 } 1890 1891 static const char * 1892 aeabi_fp_arch(uint64_t fp) 1893 { 1894 static char s_fp_arch[32]; 1895 1896 switch (fp) { 1897 case 0: return "No"; 1898 case 1: return "VFPv1"; 1899 case 2: return "VFPv2"; 1900 case 3: return "VFPv3"; 1901 case 4: return "VFPv3-D16"; 1902 case 5: return "VFPv4"; 1903 case 6: return "VFPv4-D16"; 1904 default: 1905 snprintf(s_fp_arch, sizeof(s_fp_arch), "Unknown (%ju)", 1906 (uintmax_t) fp); 1907 return (s_fp_arch); 1908 } 1909 } 1910 1911 static const char * 1912 aeabi_wmmx_arch(uint64_t wmmx) 1913 { 1914 static char s_wmmx[32]; 1915 1916 switch (wmmx) { 1917 case 0: return "No"; 1918 case 1: return "WMMXv1"; 1919 case 2: return "WMMXv2"; 1920 default: 1921 snprintf(s_wmmx, sizeof(s_wmmx), "Unknown (%ju)", 1922 (uintmax_t) wmmx); 1923 return (s_wmmx); 1924 } 1925 } 1926 1927 static const char * 1928 aeabi_adv_simd_arch(uint64_t simd) 1929 { 1930 static char s_simd[32]; 1931 1932 switch (simd) { 1933 case 0: return "No"; 1934 case 1: return "NEONv1"; 1935 case 2: return "NEONv2"; 1936 default: 1937 snprintf(s_simd, sizeof(s_simd), "Unknown (%ju)", 1938 (uintmax_t) simd); 1939 return (s_simd); 1940 } 1941 } 1942 1943 static const char * 1944 aeabi_pcs_config(uint64_t pcs) 1945 { 1946 static char s_pcs[32]; 1947 1948 switch (pcs) { 1949 case 0: return "None"; 1950 case 1: return "Bare platform"; 1951 case 2: return "Linux"; 1952 case 3: return "Linux DSO"; 1953 case 4: return "Palm OS 2004"; 1954 case 5: return "Palm OS (future)"; 1955 case 6: return "Symbian OS 2004"; 1956 case 7: return "Symbian OS (future)"; 1957 default: 1958 snprintf(s_pcs, sizeof(s_pcs), "Unknown (%ju)", 1959 (uintmax_t) pcs); 1960 return (s_pcs); 1961 } 1962 } 1963 1964 static const char * 1965 aeabi_pcs_r9(uint64_t r9) 1966 { 1967 static char s_r9[32]; 1968 1969 switch (r9) { 1970 case 0: return "V6"; 1971 case 1: return "SB"; 1972 case 2: return "TLS pointer"; 1973 case 3: return "Unused"; 1974 default: 1975 snprintf(s_r9, sizeof(s_r9), "Unknown (%ju)", (uintmax_t) r9); 1976 return (s_r9); 1977 } 1978 } 1979 1980 static const char * 1981 aeabi_pcs_rw(uint64_t rw) 1982 { 1983 static char s_rw[32]; 1984 1985 switch (rw) { 1986 case 0: return "Absolute"; 1987 case 1: return "PC-relative"; 1988 case 2: return "SB-relative"; 1989 case 3: return "None"; 1990 default: 1991 snprintf(s_rw, sizeof(s_rw), "Unknown (%ju)", (uintmax_t) rw); 1992 return (s_rw); 1993 } 1994 } 1995 1996 static const char * 1997 aeabi_pcs_ro(uint64_t ro) 1998 { 1999 static char s_ro[32]; 2000 2001 switch (ro) { 2002 case 0: return "Absolute"; 2003 case 1: return "PC-relative"; 2004 case 2: return "None"; 2005 default: 2006 snprintf(s_ro, sizeof(s_ro), "Unknown (%ju)", (uintmax_t) ro); 2007 return (s_ro); 2008 } 2009 } 2010 2011 static const char * 2012 aeabi_pcs_got(uint64_t got) 2013 { 2014 static char s_got[32]; 2015 2016 switch (got) { 2017 case 0: return "None"; 2018 case 1: return "direct"; 2019 case 2: return "indirect via GOT"; 2020 default: 2021 snprintf(s_got, sizeof(s_got), "Unknown (%ju)", 2022 (uintmax_t) got); 2023 return (s_got); 2024 } 2025 } 2026 2027 static const char * 2028 aeabi_pcs_wchar_t(uint64_t wt) 2029 { 2030 static char s_wt[32]; 2031 2032 switch (wt) { 2033 case 0: return "None"; 2034 case 2: return "wchar_t size 2"; 2035 case 4: return "wchar_t size 4"; 2036 default: 2037 snprintf(s_wt, sizeof(s_wt), "Unknown (%ju)", (uintmax_t) wt); 2038 return (s_wt); 2039 } 2040 } 2041 2042 static const char * 2043 aeabi_enum_size(uint64_t es) 2044 { 2045 static char s_es[32]; 2046 2047 switch (es) { 2048 case 0: return "None"; 2049 case 1: return "smallest"; 2050 case 2: return "32-bit"; 2051 case 3: return "visible 32-bit"; 2052 default: 2053 snprintf(s_es, sizeof(s_es), "Unknown (%ju)", (uintmax_t) es); 2054 return (s_es); 2055 } 2056 } 2057 2058 static const char * 2059 aeabi_align_needed(uint64_t an) 2060 { 2061 static char s_align_n[64]; 2062 2063 switch (an) { 2064 case 0: return "No"; 2065 case 1: return "8-byte align"; 2066 case 2: return "4-byte align"; 2067 case 3: return "Reserved"; 2068 default: 2069 if (an >= 4 && an <= 12) 2070 snprintf(s_align_n, sizeof(s_align_n), "8-byte align" 2071 " and up to 2^%ju-byte extended align", 2072 (uintmax_t) an); 2073 else 2074 snprintf(s_align_n, sizeof(s_align_n), "Unknown (%ju)", 2075 (uintmax_t) an); 2076 return (s_align_n); 2077 } 2078 } 2079 2080 static const char * 2081 aeabi_align_preserved(uint64_t ap) 2082 { 2083 static char s_align_p[128]; 2084 2085 switch (ap) { 2086 case 0: return "No"; 2087 case 1: return "8-byte align"; 2088 case 2: return "8-byte align and SP % 8 == 0"; 2089 case 3: return "Reserved"; 2090 default: 2091 if (ap >= 4 && ap <= 12) 2092 snprintf(s_align_p, sizeof(s_align_p), "8-byte align" 2093 " and SP %% 8 == 0 and up to 2^%ju-byte extended" 2094 " align", (uintmax_t) ap); 2095 else 2096 snprintf(s_align_p, sizeof(s_align_p), "Unknown (%ju)", 2097 (uintmax_t) ap); 2098 return (s_align_p); 2099 } 2100 } 2101 2102 static const char * 2103 aeabi_fp_rounding(uint64_t fr) 2104 { 2105 static char s_fp_r[32]; 2106 2107 switch (fr) { 2108 case 0: return "Unused"; 2109 case 1: return "Needed"; 2110 default: 2111 snprintf(s_fp_r, sizeof(s_fp_r), "Unknown (%ju)", 2112 (uintmax_t) fr); 2113 return (s_fp_r); 2114 } 2115 } 2116 2117 static const char * 2118 aeabi_fp_denormal(uint64_t fd) 2119 { 2120 static char s_fp_d[32]; 2121 2122 switch (fd) { 2123 case 0: return "Unused"; 2124 case 1: return "Needed"; 2125 case 2: return "Sign Only"; 2126 default: 2127 snprintf(s_fp_d, sizeof(s_fp_d), "Unknown (%ju)", 2128 (uintmax_t) fd); 2129 return (s_fp_d); 2130 } 2131 } 2132 2133 static const char * 2134 aeabi_fp_exceptions(uint64_t fe) 2135 { 2136 static char s_fp_e[32]; 2137 2138 switch (fe) { 2139 case 0: return "Unused"; 2140 case 1: return "Needed"; 2141 default: 2142 snprintf(s_fp_e, sizeof(s_fp_e), "Unknown (%ju)", 2143 (uintmax_t) fe); 2144 return (s_fp_e); 2145 } 2146 } 2147 2148 static const char * 2149 aeabi_fp_user_exceptions(uint64_t fu) 2150 { 2151 static char s_fp_u[32]; 2152 2153 switch (fu) { 2154 case 0: return "Unused"; 2155 case 1: return "Needed"; 2156 default: 2157 snprintf(s_fp_u, sizeof(s_fp_u), "Unknown (%ju)", 2158 (uintmax_t) fu); 2159 return (s_fp_u); 2160 } 2161 } 2162 2163 static const char * 2164 aeabi_fp_number_model(uint64_t fn) 2165 { 2166 static char s_fp_n[32]; 2167 2168 switch (fn) { 2169 case 0: return "Unused"; 2170 case 1: return "IEEE 754 normal"; 2171 case 2: return "RTABI"; 2172 case 3: return "IEEE 754"; 2173 default: 2174 snprintf(s_fp_n, sizeof(s_fp_n), "Unknown (%ju)", 2175 (uintmax_t) fn); 2176 return (s_fp_n); 2177 } 2178 } 2179 2180 static const char * 2181 aeabi_fp_16bit_format(uint64_t fp16) 2182 { 2183 static char s_fp_16[64]; 2184 2185 switch (fp16) { 2186 case 0: return "None"; 2187 case 1: return "IEEE 754"; 2188 case 2: return "VFPv3/Advanced SIMD (alternative format)"; 2189 default: 2190 snprintf(s_fp_16, sizeof(s_fp_16), "Unknown (%ju)", 2191 (uintmax_t) fp16); 2192 return (s_fp_16); 2193 } 2194 } 2195 2196 static const char * 2197 aeabi_mpext(uint64_t mp) 2198 { 2199 static char s_mp[32]; 2200 2201 switch (mp) { 2202 case 0: return "Not allowed"; 2203 case 1: return "Allowed"; 2204 default: 2205 snprintf(s_mp, sizeof(s_mp), "Unknown (%ju)", 2206 (uintmax_t) mp); 2207 return (s_mp); 2208 } 2209 } 2210 2211 static const char * 2212 aeabi_div(uint64_t du) 2213 { 2214 static char s_du[32]; 2215 2216 switch (du) { 2217 case 0: return "Yes (V7-R/V7-M)"; 2218 case 1: return "No"; 2219 case 2: return "Yes (V7-A)"; 2220 default: 2221 snprintf(s_du, sizeof(s_du), "Unknown (%ju)", 2222 (uintmax_t) du); 2223 return (s_du); 2224 } 2225 } 2226 2227 static const char * 2228 aeabi_t2ee(uint64_t t2ee) 2229 { 2230 static char s_t2ee[32]; 2231 2232 switch (t2ee) { 2233 case 0: return "Not allowed"; 2234 case 1: return "Allowed"; 2235 default: 2236 snprintf(s_t2ee, sizeof(s_t2ee), "Unknown(%ju)", 2237 (uintmax_t) t2ee); 2238 return (s_t2ee); 2239 } 2240 2241 } 2242 2243 static const char * 2244 aeabi_hardfp(uint64_t hfp) 2245 { 2246 static char s_hfp[32]; 2247 2248 switch (hfp) { 2249 case 0: return "Tag_FP_arch"; 2250 case 1: return "only SP"; 2251 case 2: return "only DP"; 2252 case 3: return "both SP and DP"; 2253 default: 2254 snprintf(s_hfp, sizeof(s_hfp), "Unknown (%ju)", 2255 (uintmax_t) hfp); 2256 return (s_hfp); 2257 } 2258 } 2259 2260 static const char * 2261 aeabi_vfp_args(uint64_t va) 2262 { 2263 static char s_va[32]; 2264 2265 switch (va) { 2266 case 0: return "AAPCS (base variant)"; 2267 case 1: return "AAPCS (VFP variant)"; 2268 case 2: return "toolchain-specific"; 2269 default: 2270 snprintf(s_va, sizeof(s_va), "Unknown (%ju)", (uintmax_t) va); 2271 return (s_va); 2272 } 2273 } 2274 2275 static const char * 2276 aeabi_wmmx_args(uint64_t wa) 2277 { 2278 static char s_wa[32]; 2279 2280 switch (wa) { 2281 case 0: return "AAPCS (base variant)"; 2282 case 1: return "Intel WMMX"; 2283 case 2: return "toolchain-specific"; 2284 default: 2285 snprintf(s_wa, sizeof(s_wa), "Unknown(%ju)", (uintmax_t) wa); 2286 return (s_wa); 2287 } 2288 } 2289 2290 static const char * 2291 aeabi_unaligned_access(uint64_t ua) 2292 { 2293 static char s_ua[32]; 2294 2295 switch (ua) { 2296 case 0: return "Not allowed"; 2297 case 1: return "Allowed"; 2298 default: 2299 snprintf(s_ua, sizeof(s_ua), "Unknown(%ju)", (uintmax_t) ua); 2300 return (s_ua); 2301 } 2302 } 2303 2304 static const char * 2305 aeabi_fp_hpext(uint64_t fh) 2306 { 2307 static char s_fh[32]; 2308 2309 switch (fh) { 2310 case 0: return "Not allowed"; 2311 case 1: return "Allowed"; 2312 default: 2313 snprintf(s_fh, sizeof(s_fh), "Unknown(%ju)", (uintmax_t) fh); 2314 return (s_fh); 2315 } 2316 } 2317 2318 static const char * 2319 aeabi_optm_goal(uint64_t og) 2320 { 2321 static char s_og[32]; 2322 2323 switch (og) { 2324 case 0: return "None"; 2325 case 1: return "Speed"; 2326 case 2: return "Speed aggressive"; 2327 case 3: return "Space"; 2328 case 4: return "Space aggressive"; 2329 case 5: return "Debugging"; 2330 case 6: return "Best Debugging"; 2331 default: 2332 snprintf(s_og, sizeof(s_og), "Unknown(%ju)", (uintmax_t) og); 2333 return (s_og); 2334 } 2335 } 2336 2337 static const char * 2338 aeabi_fp_optm_goal(uint64_t fog) 2339 { 2340 static char s_fog[32]; 2341 2342 switch (fog) { 2343 case 0: return "None"; 2344 case 1: return "Speed"; 2345 case 2: return "Speed aggressive"; 2346 case 3: return "Space"; 2347 case 4: return "Space aggressive"; 2348 case 5: return "Accurary"; 2349 case 6: return "Best Accurary"; 2350 default: 2351 snprintf(s_fog, sizeof(s_fog), "Unknown(%ju)", 2352 (uintmax_t) fog); 2353 return (s_fog); 2354 } 2355 } 2356 2357 static const char * 2358 aeabi_virtual(uint64_t vt) 2359 { 2360 static char s_virtual[64]; 2361 2362 switch (vt) { 2363 case 0: return "No"; 2364 case 1: return "TrustZone"; 2365 case 2: return "Virtualization extension"; 2366 case 3: return "TrustZone and virtualization extension"; 2367 default: 2368 snprintf(s_virtual, sizeof(s_virtual), "Unknown(%ju)", 2369 (uintmax_t) vt); 2370 return (s_virtual); 2371 } 2372 } 2373 2374 static struct { 2375 uint64_t tag; 2376 const char *s_tag; 2377 const char *(*get_desc)(uint64_t val); 2378 } aeabi_tags[] = { 2379 {4, "Tag_CPU_raw_name", NULL}, 2380 {5, "Tag_CPU_name", NULL}, 2381 {6, "Tag_CPU_arch", aeabi_cpu_arch}, 2382 {7, "Tag_CPU_arch_profile", aeabi_cpu_arch_profile}, 2383 {8, "Tag_ARM_ISA_use", aeabi_arm_isa}, 2384 {9, "Tag_THUMB_ISA_use", aeabi_thumb_isa}, 2385 {10, "Tag_FP_arch", aeabi_fp_arch}, 2386 {11, "Tag_WMMX_arch", aeabi_wmmx_arch}, 2387 {12, "Tag_Advanced_SIMD_arch", aeabi_adv_simd_arch}, 2388 {13, "Tag_PCS_config", aeabi_pcs_config}, 2389 {14, "Tag_ABI_PCS_R9_use", aeabi_pcs_r9}, 2390 {15, "Tag_ABI_PCS_RW_data", aeabi_pcs_rw}, 2391 {16, "Tag_ABI_PCS_RO_data", aeabi_pcs_ro}, 2392 {17, "Tag_ABI_PCS_GOT_use", aeabi_pcs_got}, 2393 {18, "Tag_ABI_PCS_wchar_t", aeabi_pcs_wchar_t}, 2394 {19, "Tag_ABI_FP_rounding", aeabi_fp_rounding}, 2395 {20, "Tag_ABI_FP_denormal", aeabi_fp_denormal}, 2396 {21, "Tag_ABI_FP_exceptions", aeabi_fp_exceptions}, 2397 {22, "Tag_ABI_FP_user_exceptions", aeabi_fp_user_exceptions}, 2398 {23, "Tag_ABI_FP_number_model", aeabi_fp_number_model}, 2399 {24, "Tag_ABI_align_needed", aeabi_align_needed}, 2400 {25, "Tag_ABI_align_preserved", aeabi_align_preserved}, 2401 {26, "Tag_ABI_enum_size", aeabi_enum_size}, 2402 {27, "Tag_ABI_HardFP_use", aeabi_hardfp}, 2403 {28, "Tag_ABI_VFP_args", aeabi_vfp_args}, 2404 {29, "Tag_ABI_WMMX_args", aeabi_wmmx_args}, 2405 {30, "Tag_ABI_optimization_goals", aeabi_optm_goal}, 2406 {31, "Tag_ABI_FP_optimization_goals", aeabi_fp_optm_goal}, 2407 {32, "Tag_compatibility", NULL}, 2408 {34, "Tag_CPU_unaligned_access", aeabi_unaligned_access}, 2409 {36, "Tag_FP_HP_extension", aeabi_fp_hpext}, 2410 {38, "Tag_ABI_FP_16bit_format", aeabi_fp_16bit_format}, 2411 {42, "Tag_MPextension_use", aeabi_mpext}, 2412 {44, "Tag_DIV_use", aeabi_div}, 2413 {64, "Tag_nodefaults", NULL}, 2414 {65, "Tag_also_compatible_with", NULL}, 2415 {66, "Tag_T2EE_use", aeabi_t2ee}, 2416 {67, "Tag_conformance", NULL}, 2417 {68, "Tag_Virtualization_use", aeabi_virtual}, 2418 {70, "Tag_MPextension_use", aeabi_mpext}, 2419 }; 2420 2421 static const char * 2422 mips_abi_fp(uint64_t fp) 2423 { 2424 static char s_mips_abi_fp[64]; 2425 2426 switch (fp) { 2427 case 0: return "N/A"; 2428 case 1: return "Hard float (double precision)"; 2429 case 2: return "Hard float (single precision)"; 2430 case 3: return "Soft float"; 2431 case 4: return "64-bit float (-mips32r2 -mfp64)"; 2432 default: 2433 snprintf(s_mips_abi_fp, sizeof(s_mips_abi_fp), "Unknown(%ju)", 2434 (uintmax_t) fp); 2435 return (s_mips_abi_fp); 2436 } 2437 } 2438 2439 static const char * 2440 ppc_abi_fp(uint64_t fp) 2441 { 2442 static char s_ppc_abi_fp[64]; 2443 2444 switch (fp) { 2445 case 0: return "N/A"; 2446 case 1: return "Hard float (double precision)"; 2447 case 2: return "Soft float"; 2448 case 3: return "Hard float (single precision)"; 2449 default: 2450 snprintf(s_ppc_abi_fp, sizeof(s_ppc_abi_fp), "Unknown(%ju)", 2451 (uintmax_t) fp); 2452 return (s_ppc_abi_fp); 2453 } 2454 } 2455 2456 static const char * 2457 ppc_abi_vector(uint64_t vec) 2458 { 2459 static char s_vec[64]; 2460 2461 switch (vec) { 2462 case 0: return "N/A"; 2463 case 1: return "Generic purpose registers"; 2464 case 2: return "AltiVec registers"; 2465 case 3: return "SPE registers"; 2466 default: 2467 snprintf(s_vec, sizeof(s_vec), "Unknown(%ju)", (uintmax_t) vec); 2468 return (s_vec); 2469 } 2470 } 2471 2472 static const char * 2473 dwarf_reg(unsigned int mach, unsigned int reg) 2474 { 2475 2476 switch (mach) { 2477 case EM_386: 2478 case EM_IAMCU: 2479 switch (reg) { 2480 case 0: return "eax"; 2481 case 1: return "ecx"; 2482 case 2: return "edx"; 2483 case 3: return "ebx"; 2484 case 4: return "esp"; 2485 case 5: return "ebp"; 2486 case 6: return "esi"; 2487 case 7: return "edi"; 2488 case 8: return "eip"; 2489 case 9: return "eflags"; 2490 case 11: return "st0"; 2491 case 12: return "st1"; 2492 case 13: return "st2"; 2493 case 14: return "st3"; 2494 case 15: return "st4"; 2495 case 16: return "st5"; 2496 case 17: return "st6"; 2497 case 18: return "st7"; 2498 case 21: return "xmm0"; 2499 case 22: return "xmm1"; 2500 case 23: return "xmm2"; 2501 case 24: return "xmm3"; 2502 case 25: return "xmm4"; 2503 case 26: return "xmm5"; 2504 case 27: return "xmm6"; 2505 case 28: return "xmm7"; 2506 case 29: return "mm0"; 2507 case 30: return "mm1"; 2508 case 31: return "mm2"; 2509 case 32: return "mm3"; 2510 case 33: return "mm4"; 2511 case 34: return "mm5"; 2512 case 35: return "mm6"; 2513 case 36: return "mm7"; 2514 case 37: return "fcw"; 2515 case 38: return "fsw"; 2516 case 39: return "mxcsr"; 2517 case 40: return "es"; 2518 case 41: return "cs"; 2519 case 42: return "ss"; 2520 case 43: return "ds"; 2521 case 44: return "fs"; 2522 case 45: return "gs"; 2523 case 48: return "tr"; 2524 case 49: return "ldtr"; 2525 default: return (NULL); 2526 } 2527 case EM_X86_64: 2528 switch (reg) { 2529 case 0: return "rax"; 2530 case 1: return "rdx"; 2531 case 2: return "rcx"; 2532 case 3: return "rbx"; 2533 case 4: return "rsi"; 2534 case 5: return "rdi"; 2535 case 6: return "rbp"; 2536 case 7: return "rsp"; 2537 case 16: return "rip"; 2538 case 17: return "xmm0"; 2539 case 18: return "xmm1"; 2540 case 19: return "xmm2"; 2541 case 20: return "xmm3"; 2542 case 21: return "xmm4"; 2543 case 22: return "xmm5"; 2544 case 23: return "xmm6"; 2545 case 24: return "xmm7"; 2546 case 25: return "xmm8"; 2547 case 26: return "xmm9"; 2548 case 27: return "xmm10"; 2549 case 28: return "xmm11"; 2550 case 29: return "xmm12"; 2551 case 30: return "xmm13"; 2552 case 31: return "xmm14"; 2553 case 32: return "xmm15"; 2554 case 33: return "st0"; 2555 case 34: return "st1"; 2556 case 35: return "st2"; 2557 case 36: return "st3"; 2558 case 37: return "st4"; 2559 case 38: return "st5"; 2560 case 39: return "st6"; 2561 case 40: return "st7"; 2562 case 41: return "mm0"; 2563 case 42: return "mm1"; 2564 case 43: return "mm2"; 2565 case 44: return "mm3"; 2566 case 45: return "mm4"; 2567 case 46: return "mm5"; 2568 case 47: return "mm6"; 2569 case 48: return "mm7"; 2570 case 49: return "rflags"; 2571 case 50: return "es"; 2572 case 51: return "cs"; 2573 case 52: return "ss"; 2574 case 53: return "ds"; 2575 case 54: return "fs"; 2576 case 55: return "gs"; 2577 case 58: return "fs.base"; 2578 case 59: return "gs.base"; 2579 case 62: return "tr"; 2580 case 63: return "ldtr"; 2581 case 64: return "mxcsr"; 2582 case 65: return "fcw"; 2583 case 66: return "fsw"; 2584 default: return (NULL); 2585 } 2586 default: 2587 return (NULL); 2588 } 2589 } 2590 2591 static void 2592 dump_ehdr(struct readelf *re) 2593 { 2594 size_t shnum, shstrndx; 2595 int i; 2596 2597 printf("ELF Header:\n"); 2598 2599 /* e_ident[]. */ 2600 printf(" Magic: "); 2601 for (i = 0; i < EI_NIDENT; i++) 2602 printf("%.2x ", re->ehdr.e_ident[i]); 2603 putchar('\n'); 2604 2605 /* EI_CLASS. */ 2606 printf("%-37s%s\n", " Class:", elf_class(re->ehdr.e_ident[EI_CLASS])); 2607 2608 /* EI_DATA. */ 2609 printf("%-37s%s\n", " Data:", elf_endian(re->ehdr.e_ident[EI_DATA])); 2610 2611 /* EI_VERSION. */ 2612 printf("%-37s%d %s\n", " Version:", re->ehdr.e_ident[EI_VERSION], 2613 elf_ver(re->ehdr.e_ident[EI_VERSION])); 2614 2615 /* EI_OSABI. */ 2616 printf("%-37s%s\n", " OS/ABI:", elf_osabi(re->ehdr.e_ident[EI_OSABI])); 2617 2618 /* EI_ABIVERSION. */ 2619 printf("%-37s%d\n", " ABI Version:", re->ehdr.e_ident[EI_ABIVERSION]); 2620 2621 /* e_type. */ 2622 printf("%-37s%s\n", " Type:", elf_type(re->ehdr.e_type)); 2623 2624 /* e_machine. */ 2625 printf("%-37s%s\n", " Machine:", elf_machine(re->ehdr.e_machine)); 2626 2627 /* e_version. */ 2628 printf("%-37s%#x\n", " Version:", re->ehdr.e_version); 2629 2630 /* e_entry. */ 2631 printf("%-37s%#jx\n", " Entry point address:", 2632 (uintmax_t)re->ehdr.e_entry); 2633 2634 /* e_phoff. */ 2635 printf("%-37s%ju (bytes into file)\n", " Start of program headers:", 2636 (uintmax_t)re->ehdr.e_phoff); 2637 2638 /* e_shoff. */ 2639 printf("%-37s%ju (bytes into file)\n", " Start of section headers:", 2640 (uintmax_t)re->ehdr.e_shoff); 2641 2642 /* e_flags. */ 2643 printf("%-37s%#x", " Flags:", re->ehdr.e_flags); 2644 dump_eflags(re, re->ehdr.e_flags); 2645 putchar('\n'); 2646 2647 /* e_ehsize. */ 2648 printf("%-37s%u (bytes)\n", " Size of this header:", 2649 re->ehdr.e_ehsize); 2650 2651 /* e_phentsize. */ 2652 printf("%-37s%u (bytes)\n", " Size of program headers:", 2653 re->ehdr.e_phentsize); 2654 2655 /* e_phnum. */ 2656 printf("%-37s%u\n", " Number of program headers:", re->ehdr.e_phnum); 2657 2658 /* e_shentsize. */ 2659 printf("%-37s%u (bytes)\n", " Size of section headers:", 2660 re->ehdr.e_shentsize); 2661 2662 /* e_shnum. */ 2663 printf("%-37s%u", " Number of section headers:", re->ehdr.e_shnum); 2664 if (re->ehdr.e_shnum == SHN_UNDEF) { 2665 /* Extended section numbering is in use. */ 2666 if (elf_getshnum(re->elf, &shnum)) 2667 printf(" (%ju)", (uintmax_t)shnum); 2668 } 2669 putchar('\n'); 2670 2671 /* e_shstrndx. */ 2672 printf("%-37s%u", " Section header string table index:", 2673 re->ehdr.e_shstrndx); 2674 if (re->ehdr.e_shstrndx == SHN_XINDEX) { 2675 /* Extended section numbering is in use. */ 2676 if (elf_getshstrndx(re->elf, &shstrndx)) 2677 printf(" (%ju)", (uintmax_t)shstrndx); 2678 } 2679 putchar('\n'); 2680 } 2681 2682 static void 2683 dump_eflags(struct readelf *re, uint64_t e_flags) 2684 { 2685 struct eflags_desc *edesc; 2686 int arm_eabi; 2687 2688 edesc = NULL; 2689 switch (re->ehdr.e_machine) { 2690 case EM_ARM: 2691 arm_eabi = (e_flags & EF_ARM_EABIMASK) >> 24; 2692 if (arm_eabi == 0) 2693 printf(", GNU EABI"); 2694 else if (arm_eabi <= 5) 2695 printf(", Version%d EABI", arm_eabi); 2696 edesc = arm_eflags_desc; 2697 break; 2698 case EM_MIPS: 2699 case EM_MIPS_RS3_LE: 2700 switch ((e_flags & EF_MIPS_ARCH) >> 28) { 2701 case 0: printf(", mips1"); break; 2702 case 1: printf(", mips2"); break; 2703 case 2: printf(", mips3"); break; 2704 case 3: printf(", mips4"); break; 2705 case 4: printf(", mips5"); break; 2706 case 5: printf(", mips32"); break; 2707 case 6: printf(", mips64"); break; 2708 case 7: printf(", mips32r2"); break; 2709 case 8: printf(", mips64r2"); break; 2710 default: break; 2711 } 2712 switch ((e_flags & 0x00FF0000) >> 16) { 2713 case 0x81: printf(", 3900"); break; 2714 case 0x82: printf(", 4010"); break; 2715 case 0x83: printf(", 4100"); break; 2716 case 0x85: printf(", 4650"); break; 2717 case 0x87: printf(", 4120"); break; 2718 case 0x88: printf(", 4111"); break; 2719 case 0x8a: printf(", sb1"); break; 2720 case 0x8b: printf(", octeon"); break; 2721 case 0x8c: printf(", xlr"); break; 2722 case 0x91: printf(", 5400"); break; 2723 case 0x98: printf(", 5500"); break; 2724 case 0x99: printf(", 9000"); break; 2725 case 0xa0: printf(", loongson-2e"); break; 2726 case 0xa1: printf(", loongson-2f"); break; 2727 default: break; 2728 } 2729 switch ((e_flags & 0x0000F000) >> 12) { 2730 case 1: printf(", o32"); break; 2731 case 2: printf(", o64"); break; 2732 case 3: printf(", eabi32"); break; 2733 case 4: printf(", eabi64"); break; 2734 default: break; 2735 } 2736 edesc = mips_eflags_desc; 2737 break; 2738 case EM_PPC: 2739 case EM_PPC64: 2740 edesc = powerpc_eflags_desc; 2741 break; 2742 case EM_SPARC: 2743 case EM_SPARC32PLUS: 2744 case EM_SPARCV9: 2745 switch ((e_flags & EF_SPARCV9_MM)) { 2746 case EF_SPARCV9_TSO: printf(", tso"); break; 2747 case EF_SPARCV9_PSO: printf(", pso"); break; 2748 case EF_SPARCV9_MM: printf(", rmo"); break; 2749 default: break; 2750 } 2751 edesc = sparc_eflags_desc; 2752 break; 2753 default: 2754 break; 2755 } 2756 2757 if (edesc != NULL) { 2758 while (edesc->desc != NULL) { 2759 if (e_flags & edesc->flag) 2760 printf(", %s", edesc->desc); 2761 edesc++; 2762 } 2763 } 2764 } 2765 2766 static void 2767 dump_phdr(struct readelf *re) 2768 { 2769 const char *rawfile; 2770 GElf_Phdr phdr; 2771 size_t phnum, size; 2772 int i, j; 2773 2774 #define PH_HDR "Type", "Offset", "VirtAddr", "PhysAddr", "FileSiz", \ 2775 "MemSiz", "Flg", "Align" 2776 #define PH_CT phdr_type(phdr.p_type), (uintmax_t)phdr.p_offset, \ 2777 (uintmax_t)phdr.p_vaddr, (uintmax_t)phdr.p_paddr, \ 2778 (uintmax_t)phdr.p_filesz, (uintmax_t)phdr.p_memsz, \ 2779 phdr.p_flags & PF_R ? 'R' : ' ', \ 2780 phdr.p_flags & PF_W ? 'W' : ' ', \ 2781 phdr.p_flags & PF_X ? 'E' : ' ', \ 2782 (uintmax_t)phdr.p_align 2783 2784 if (elf_getphnum(re->elf, &phnum) == 0) { 2785 warnx("elf_getphnum failed: %s", elf_errmsg(-1)); 2786 return; 2787 } 2788 if (phnum == 0) { 2789 printf("\nThere are no program headers in this file.\n"); 2790 return; 2791 } 2792 2793 printf("\nElf file type is %s", elf_type(re->ehdr.e_type)); 2794 printf("\nEntry point 0x%jx\n", (uintmax_t)re->ehdr.e_entry); 2795 printf("There are %ju program headers, starting at offset %ju\n", 2796 (uintmax_t)phnum, (uintmax_t)re->ehdr.e_phoff); 2797 2798 /* Dump program headers. */ 2799 printf("\nProgram Headers:\n"); 2800 if (re->ec == ELFCLASS32) 2801 printf(" %-15s%-9s%-11s%-11s%-8s%-8s%-4s%s\n", PH_HDR); 2802 else if (re->options & RE_WW) 2803 printf(" %-15s%-9s%-19s%-19s%-9s%-9s%-4s%s\n", PH_HDR); 2804 else 2805 printf(" %-15s%-19s%-19s%s\n %-19s%-20s" 2806 "%-7s%s\n", PH_HDR); 2807 for (i = 0; (size_t) i < phnum; i++) { 2808 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) { 2809 warnx("gelf_getphdr failed: %s", elf_errmsg(-1)); 2810 continue; 2811 } 2812 /* TODO: Add arch-specific segment type dump. */ 2813 if (re->ec == ELFCLASS32) 2814 printf(" %-14.14s 0x%6.6jx 0x%8.8jx 0x%8.8jx " 2815 "0x%5.5jx 0x%5.5jx %c%c%c %#jx\n", PH_CT); 2816 else if (re->options & RE_WW) 2817 printf(" %-14.14s 0x%6.6jx 0x%16.16jx 0x%16.16jx " 2818 "0x%6.6jx 0x%6.6jx %c%c%c %#jx\n", PH_CT); 2819 else 2820 printf(" %-14.14s 0x%16.16jx 0x%16.16jx 0x%16.16jx\n" 2821 " 0x%16.16jx 0x%16.16jx %c%c%c" 2822 " %#jx\n", PH_CT); 2823 if (phdr.p_type == PT_INTERP) { 2824 if ((rawfile = elf_rawfile(re->elf, &size)) == NULL) { 2825 warnx("elf_rawfile failed: %s", elf_errmsg(-1)); 2826 continue; 2827 } 2828 if (phdr.p_offset >= size) { 2829 warnx("invalid program header offset"); 2830 continue; 2831 } 2832 printf(" [Requesting program interpreter: %s]\n", 2833 rawfile + phdr.p_offset); 2834 } 2835 } 2836 2837 /* Dump section to segment mapping. */ 2838 if (re->shnum == 0) 2839 return; 2840 printf("\n Section to Segment mapping:\n"); 2841 printf(" Segment Sections...\n"); 2842 for (i = 0; (size_t)i < phnum; i++) { 2843 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) { 2844 warnx("gelf_getphdr failed: %s", elf_errmsg(-1)); 2845 continue; 2846 } 2847 printf(" %2.2d ", i); 2848 /* skip NULL section. */ 2849 for (j = 1; (size_t)j < re->shnum; j++) 2850 if (re->sl[j].off >= phdr.p_offset && 2851 re->sl[j].off + re->sl[j].sz <= 2852 phdr.p_offset + phdr.p_memsz) 2853 printf("%s ", re->sl[j].name); 2854 printf("\n"); 2855 } 2856 #undef PH_HDR 2857 #undef PH_CT 2858 } 2859 2860 static char * 2861 section_flags(struct readelf *re, struct section *s) 2862 { 2863 #define BUF_SZ 256 2864 static char buf[BUF_SZ]; 2865 int i, p, nb; 2866 2867 p = 0; 2868 nb = re->ec == ELFCLASS32 ? 8 : 16; 2869 if (re->options & RE_T) { 2870 snprintf(buf, BUF_SZ, "[%*.*jx]: ", nb, nb, 2871 (uintmax_t)s->flags); 2872 p += nb + 4; 2873 } 2874 for (i = 0; section_flag[i].ln != NULL; i++) { 2875 if ((s->flags & section_flag[i].value) == 0) 2876 continue; 2877 if (re->options & RE_T) { 2878 snprintf(&buf[p], BUF_SZ - p, "%s, ", 2879 section_flag[i].ln); 2880 p += strlen(section_flag[i].ln) + 2; 2881 } else 2882 buf[p++] = section_flag[i].sn; 2883 } 2884 if (re->options & RE_T && p > nb + 4) 2885 p -= 2; 2886 buf[p] = '\0'; 2887 2888 return (buf); 2889 } 2890 2891 static void 2892 dump_shdr(struct readelf *re) 2893 { 2894 struct section *s; 2895 int i; 2896 2897 #define S_HDR "[Nr] Name", "Type", "Addr", "Off", "Size", "ES", \ 2898 "Flg", "Lk", "Inf", "Al" 2899 #define S_HDRL "[Nr] Name", "Type", "Address", "Offset", "Size", \ 2900 "EntSize", "Flags", "Link", "Info", "Align" 2901 #define ST_HDR "[Nr] Name", "Type", "Addr", "Off", "Size", "ES", \ 2902 "Lk", "Inf", "Al", "Flags" 2903 #define ST_HDRL "[Nr] Name", "Type", "Address", "Offset", "Link", \ 2904 "Size", "EntSize", "Info", "Align", "Flags" 2905 #define S_CT i, s->name, section_type(re->ehdr.e_machine, s->type), \ 2906 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\ 2907 (uintmax_t)s->entsize, section_flags(re, s), \ 2908 s->link, s->info, (uintmax_t)s->align 2909 #define ST_CT i, s->name, section_type(re->ehdr.e_machine, s->type), \ 2910 (uintmax_t)s->addr, (uintmax_t)s->off, (uintmax_t)s->sz,\ 2911 (uintmax_t)s->entsize, s->link, s->info, \ 2912 (uintmax_t)s->align, section_flags(re, s) 2913 #define ST_CTL i, s->name, section_type(re->ehdr.e_machine, s->type), \ 2914 (uintmax_t)s->addr, (uintmax_t)s->off, s->link, \ 2915 (uintmax_t)s->sz, (uintmax_t)s->entsize, s->info, \ 2916 (uintmax_t)s->align, section_flags(re, s) 2917 2918 if (re->shnum == 0) { 2919 printf("\nThere are no sections in this file.\n"); 2920 return; 2921 } 2922 printf("There are %ju section headers, starting at offset 0x%jx:\n", 2923 (uintmax_t)re->shnum, (uintmax_t)re->ehdr.e_shoff); 2924 printf("\nSection Headers:\n"); 2925 if (re->ec == ELFCLASS32) { 2926 if (re->options & RE_T) 2927 printf(" %s\n %-16s%-9s%-7s%-7s%-5s%-3s%-4s%s\n" 2928 "%12s\n", ST_HDR); 2929 else 2930 printf(" %-23s%-16s%-9s%-7s%-7s%-3s%-4s%-3s%-4s%s\n", 2931 S_HDR); 2932 } else if (re->options & RE_WW) { 2933 if (re->options & RE_T) 2934 printf(" %s\n %-16s%-17s%-7s%-7s%-5s%-3s%-4s%s\n" 2935 "%12s\n", ST_HDR); 2936 else 2937 printf(" %-23s%-16s%-17s%-7s%-7s%-3s%-4s%-3s%-4s%s\n", 2938 S_HDR); 2939 } else { 2940 if (re->options & RE_T) 2941 printf(" %s\n %-18s%-17s%-18s%s\n %-18s" 2942 "%-17s%-18s%s\n%12s\n", ST_HDRL); 2943 else 2944 printf(" %-23s%-17s%-18s%s\n %-18s%-17s%-7s%" 2945 "-6s%-6s%s\n", S_HDRL); 2946 } 2947 for (i = 0; (size_t)i < re->shnum; i++) { 2948 s = &re->sl[i]; 2949 if (re->ec == ELFCLASS32) { 2950 if (re->options & RE_T) 2951 printf(" [%2d] %s\n %-15.15s %8.8jx" 2952 " %6.6jx %6.6jx %2.2jx %2u %3u %2ju\n" 2953 " %s\n", ST_CT); 2954 else 2955 printf(" [%2d] %-17.17s %-15.15s %8.8jx" 2956 " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n", 2957 S_CT); 2958 } else if (re->options & RE_WW) { 2959 if (re->options & RE_T) 2960 printf(" [%2d] %s\n %-15.15s %16.16jx" 2961 " %6.6jx %6.6jx %2.2jx %2u %3u %2ju\n" 2962 " %s\n", ST_CT); 2963 else 2964 printf(" [%2d] %-17.17s %-15.15s %16.16jx" 2965 " %6.6jx %6.6jx %2.2jx %3s %2u %3u %2ju\n", 2966 S_CT); 2967 } else { 2968 if (re->options & RE_T) 2969 printf(" [%2d] %s\n %-15.15s %16.16jx" 2970 " %16.16jx %u\n %16.16jx %16.16jx" 2971 " %-16u %ju\n %s\n", ST_CTL); 2972 else 2973 printf(" [%2d] %-17.17s %-15.15s %16.16jx" 2974 " %8.8jx\n %16.16jx %16.16jx " 2975 "%3s %2u %3u %ju\n", S_CT); 2976 } 2977 } 2978 if ((re->options & RE_T) == 0) 2979 printf("Key to Flags:\n W (write), A (alloc)," 2980 " X (execute), M (merge), S (strings)\n" 2981 " I (info), L (link order), G (group), x (unknown)\n" 2982 " O (extra OS processing required)" 2983 " o (OS specific), p (processor specific)\n"); 2984 2985 #undef S_HDR 2986 #undef S_HDRL 2987 #undef ST_HDR 2988 #undef ST_HDRL 2989 #undef S_CT 2990 #undef ST_CT 2991 #undef ST_CTL 2992 } 2993 2994 /* 2995 * Return number of entries in the given section. We'd prefer ent_count be a 2996 * size_t *, but libelf APIs already use int for section indices. 2997 */ 2998 static int 2999 get_ent_count(struct section *s, int *ent_count) 3000 { 3001 if (s->entsize == 0) { 3002 warnx("section %s has entry size 0", s->name); 3003 return (0); 3004 } else if (s->sz / s->entsize > INT_MAX) { 3005 warnx("section %s has invalid section count", s->name); 3006 return (0); 3007 } 3008 *ent_count = (int)(s->sz / s->entsize); 3009 return (1); 3010 } 3011 3012 static void 3013 dump_dynamic(struct readelf *re) 3014 { 3015 GElf_Dyn dyn; 3016 Elf_Data *d; 3017 struct section *s; 3018 int elferr, i, is_dynamic, j, jmax, nentries; 3019 3020 is_dynamic = 0; 3021 3022 for (i = 0; (size_t)i < re->shnum; i++) { 3023 s = &re->sl[i]; 3024 if (s->type != SHT_DYNAMIC) 3025 continue; 3026 (void) elf_errno(); 3027 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3028 elferr = elf_errno(); 3029 if (elferr != 0) 3030 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 3031 continue; 3032 } 3033 if (d->d_size <= 0) 3034 continue; 3035 3036 is_dynamic = 1; 3037 3038 /* Determine the actual number of table entries. */ 3039 nentries = 0; 3040 if (!get_ent_count(s, &jmax)) 3041 continue; 3042 for (j = 0; j < jmax; j++) { 3043 if (gelf_getdyn(d, j, &dyn) != &dyn) { 3044 warnx("gelf_getdyn failed: %s", 3045 elf_errmsg(-1)); 3046 continue; 3047 } 3048 nentries ++; 3049 if (dyn.d_tag == DT_NULL) 3050 break; 3051 } 3052 3053 printf("\nDynamic section at offset 0x%jx", (uintmax_t)s->off); 3054 printf(" contains %u entries:\n", nentries); 3055 3056 if (re->ec == ELFCLASS32) 3057 printf("%5s%12s%28s\n", "Tag", "Type", "Name/Value"); 3058 else 3059 printf("%5s%20s%28s\n", "Tag", "Type", "Name/Value"); 3060 3061 for (j = 0; j < nentries; j++) { 3062 if (gelf_getdyn(d, j, &dyn) != &dyn) 3063 continue; 3064 /* Dump dynamic entry type. */ 3065 if (re->ec == ELFCLASS32) 3066 printf(" 0x%8.8jx", (uintmax_t)dyn.d_tag); 3067 else 3068 printf(" 0x%16.16jx", (uintmax_t)dyn.d_tag); 3069 printf(" %-20s", dt_type(re->ehdr.e_machine, 3070 dyn.d_tag)); 3071 /* Dump dynamic entry value. */ 3072 dump_dyn_val(re, &dyn, s->link); 3073 } 3074 } 3075 3076 if (!is_dynamic) 3077 printf("\nThere is no dynamic section in this file.\n"); 3078 } 3079 3080 static char * 3081 timestamp(time_t ti) 3082 { 3083 static char ts[32]; 3084 struct tm *t; 3085 3086 t = gmtime(&ti); 3087 snprintf(ts, sizeof(ts), "%04d-%02d-%02dT%02d:%02d:%02d", 3088 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, 3089 t->tm_min, t->tm_sec); 3090 3091 return (ts); 3092 } 3093 3094 static const char * 3095 dyn_str(struct readelf *re, uint32_t stab, uint64_t d_val) 3096 { 3097 const char *name; 3098 3099 if (stab == SHN_UNDEF) 3100 name = "ERROR"; 3101 else if ((name = elf_strptr(re->elf, stab, d_val)) == NULL) { 3102 (void) elf_errno(); /* clear error */ 3103 name = "ERROR"; 3104 } 3105 3106 return (name); 3107 } 3108 3109 static void 3110 dump_arch_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab) 3111 { 3112 const char *name; 3113 3114 switch (re->ehdr.e_machine) { 3115 case EM_MIPS: 3116 case EM_MIPS_RS3_LE: 3117 switch (dyn->d_tag) { 3118 case DT_MIPS_RLD_VERSION: 3119 case DT_MIPS_LOCAL_GOTNO: 3120 case DT_MIPS_CONFLICTNO: 3121 case DT_MIPS_LIBLISTNO: 3122 case DT_MIPS_SYMTABNO: 3123 case DT_MIPS_UNREFEXTNO: 3124 case DT_MIPS_GOTSYM: 3125 case DT_MIPS_HIPAGENO: 3126 case DT_MIPS_DELTA_CLASS_NO: 3127 case DT_MIPS_DELTA_INSTANCE_NO: 3128 case DT_MIPS_DELTA_RELOC_NO: 3129 case DT_MIPS_DELTA_SYM_NO: 3130 case DT_MIPS_DELTA_CLASSSYM_NO: 3131 case DT_MIPS_LOCALPAGE_GOTIDX: 3132 case DT_MIPS_LOCAL_GOTIDX: 3133 case DT_MIPS_HIDDEN_GOTIDX: 3134 case DT_MIPS_PROTECTED_GOTIDX: 3135 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val); 3136 break; 3137 case DT_MIPS_ICHECKSUM: 3138 case DT_MIPS_FLAGS: 3139 case DT_MIPS_BASE_ADDRESS: 3140 case DT_MIPS_CONFLICT: 3141 case DT_MIPS_LIBLIST: 3142 case DT_MIPS_RLD_MAP: 3143 case DT_MIPS_DELTA_CLASS: 3144 case DT_MIPS_DELTA_INSTANCE: 3145 case DT_MIPS_DELTA_RELOC: 3146 case DT_MIPS_DELTA_SYM: 3147 case DT_MIPS_DELTA_CLASSSYM: 3148 case DT_MIPS_CXX_FLAGS: 3149 case DT_MIPS_PIXIE_INIT: 3150 case DT_MIPS_SYMBOL_LIB: 3151 case DT_MIPS_OPTIONS: 3152 case DT_MIPS_INTERFACE: 3153 case DT_MIPS_DYNSTR_ALIGN: 3154 case DT_MIPS_INTERFACE_SIZE: 3155 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR: 3156 case DT_MIPS_COMPACT_SIZE: 3157 case DT_MIPS_GP_VALUE: 3158 case DT_MIPS_AUX_DYNAMIC: 3159 case DT_MIPS_PLTGOT: 3160 case DT_MIPS_RLD_OBJ_UPDATE: 3161 case DT_MIPS_RWPLT: 3162 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val); 3163 break; 3164 case DT_MIPS_IVERSION: 3165 case DT_MIPS_PERF_SUFFIX: 3166 case DT_AUXILIARY: 3167 case DT_FILTER: 3168 name = dyn_str(re, stab, dyn->d_un.d_val); 3169 printf(" %s\n", name); 3170 break; 3171 case DT_MIPS_TIME_STAMP: 3172 printf(" %s\n", timestamp(dyn->d_un.d_val)); 3173 break; 3174 } 3175 break; 3176 default: 3177 printf("\n"); 3178 break; 3179 } 3180 } 3181 3182 static void 3183 dump_dyn_val(struct readelf *re, GElf_Dyn *dyn, uint32_t stab) 3184 { 3185 const char *name; 3186 3187 if (dyn->d_tag >= DT_LOPROC && dyn->d_tag <= DT_HIPROC) { 3188 dump_arch_dyn_val(re, dyn, stab); 3189 return; 3190 } 3191 3192 /* These entry values are index into the string table. */ 3193 name = NULL; 3194 if (dyn->d_tag == DT_NEEDED || dyn->d_tag == DT_SONAME || 3195 dyn->d_tag == DT_RPATH || dyn->d_tag == DT_RUNPATH) 3196 name = dyn_str(re, stab, dyn->d_un.d_val); 3197 3198 switch(dyn->d_tag) { 3199 case DT_NULL: 3200 case DT_PLTGOT: 3201 case DT_HASH: 3202 case DT_STRTAB: 3203 case DT_SYMTAB: 3204 case DT_RELA: 3205 case DT_INIT: 3206 case DT_SYMBOLIC: 3207 case DT_REL: 3208 case DT_DEBUG: 3209 case DT_TEXTREL: 3210 case DT_JMPREL: 3211 case DT_FINI: 3212 case DT_VERDEF: 3213 case DT_VERNEED: 3214 case DT_VERSYM: 3215 case DT_GNU_HASH: 3216 case DT_GNU_LIBLIST: 3217 case DT_GNU_CONFLICT: 3218 printf(" 0x%jx\n", (uintmax_t) dyn->d_un.d_val); 3219 break; 3220 case DT_PLTRELSZ: 3221 case DT_RELASZ: 3222 case DT_RELAENT: 3223 case DT_STRSZ: 3224 case DT_SYMENT: 3225 case DT_RELSZ: 3226 case DT_RELENT: 3227 case DT_INIT_ARRAYSZ: 3228 case DT_FINI_ARRAYSZ: 3229 case DT_GNU_CONFLICTSZ: 3230 case DT_GNU_LIBLISTSZ: 3231 printf(" %ju (bytes)\n", (uintmax_t) dyn->d_un.d_val); 3232 break; 3233 case DT_RELACOUNT: 3234 case DT_RELCOUNT: 3235 case DT_VERDEFNUM: 3236 case DT_VERNEEDNUM: 3237 printf(" %ju\n", (uintmax_t) dyn->d_un.d_val); 3238 break; 3239 case DT_NEEDED: 3240 printf(" Shared library: [%s]\n", name); 3241 break; 3242 case DT_SONAME: 3243 printf(" Library soname: [%s]\n", name); 3244 break; 3245 case DT_RPATH: 3246 printf(" Library rpath: [%s]\n", name); 3247 break; 3248 case DT_RUNPATH: 3249 printf(" Library runpath: [%s]\n", name); 3250 break; 3251 case DT_PLTREL: 3252 printf(" %s\n", dt_type(re->ehdr.e_machine, dyn->d_un.d_val)); 3253 break; 3254 case DT_GNU_PRELINKED: 3255 printf(" %s\n", timestamp(dyn->d_un.d_val)); 3256 break; 3257 default: 3258 printf("\n"); 3259 } 3260 } 3261 3262 static void 3263 dump_rel(struct readelf *re, struct section *s, Elf_Data *d) 3264 { 3265 GElf_Rel r; 3266 const char *symname; 3267 uint64_t symval; 3268 int i, len; 3269 3270 if (s->link >= re->shnum) 3271 return; 3272 3273 #define REL_HDR "r_offset", "r_info", "r_type", "st_value", "st_name" 3274 #define REL_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \ 3275 r_type(re->ehdr.e_machine, ELF32_R_TYPE(r.r_info)), \ 3276 (uintmax_t)symval, symname 3277 #define REL_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \ 3278 r_type(re->ehdr.e_machine, ELF64_R_TYPE(r.r_info)), \ 3279 (uintmax_t)symval, symname 3280 3281 printf("\nRelocation section (%s):\n", s->name); 3282 if (re->ec == ELFCLASS32) 3283 printf("%-8s %-8s %-19s %-8s %s\n", REL_HDR); 3284 else { 3285 if (re->options & RE_WW) 3286 printf("%-16s %-16s %-24s %-16s %s\n", REL_HDR); 3287 else 3288 printf("%-12s %-12s %-19s %-16s %s\n", REL_HDR); 3289 } 3290 assert(d->d_size == s->sz); 3291 if (!get_ent_count(s, &len)) 3292 return; 3293 for (i = 0; i < len; i++) { 3294 if (gelf_getrel(d, i, &r) != &r) { 3295 warnx("gelf_getrel failed: %s", elf_errmsg(-1)); 3296 continue; 3297 } 3298 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info)); 3299 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info)); 3300 if (re->ec == ELFCLASS32) { 3301 r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info), 3302 ELF64_R_TYPE(r.r_info)); 3303 printf("%8.8jx %8.8jx %-19.19s %8.8jx %s\n", REL_CT32); 3304 } else { 3305 if (re->options & RE_WW) 3306 printf("%16.16jx %16.16jx %-24.24s" 3307 " %16.16jx %s\n", REL_CT64); 3308 else 3309 printf("%12.12jx %12.12jx %-19.19s" 3310 " %16.16jx %s\n", REL_CT64); 3311 } 3312 } 3313 3314 #undef REL_HDR 3315 #undef REL_CT 3316 } 3317 3318 static void 3319 dump_rela(struct readelf *re, struct section *s, Elf_Data *d) 3320 { 3321 GElf_Rela r; 3322 const char *symname; 3323 uint64_t symval; 3324 int i, len; 3325 3326 if (s->link >= re->shnum) 3327 return; 3328 3329 #define RELA_HDR "r_offset", "r_info", "r_type", "st_value", \ 3330 "st_name + r_addend" 3331 #define RELA_CT32 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \ 3332 r_type(re->ehdr.e_machine, ELF32_R_TYPE(r.r_info)), \ 3333 (uintmax_t)symval, symname 3334 #define RELA_CT64 (uintmax_t)r.r_offset, (uintmax_t)r.r_info, \ 3335 r_type(re->ehdr.e_machine, ELF64_R_TYPE(r.r_info)), \ 3336 (uintmax_t)symval, symname 3337 3338 printf("\nRelocation section with addend (%s):\n", s->name); 3339 if (re->ec == ELFCLASS32) 3340 printf("%-8s %-8s %-19s %-8s %s\n", RELA_HDR); 3341 else { 3342 if (re->options & RE_WW) 3343 printf("%-16s %-16s %-24s %-16s %s\n", RELA_HDR); 3344 else 3345 printf("%-12s %-12s %-19s %-16s %s\n", RELA_HDR); 3346 } 3347 assert(d->d_size == s->sz); 3348 if (!get_ent_count(s, &len)) 3349 return; 3350 for (i = 0; i < len; i++) { 3351 if (gelf_getrela(d, i, &r) != &r) { 3352 warnx("gelf_getrel failed: %s", elf_errmsg(-1)); 3353 continue; 3354 } 3355 symname = get_symbol_name(re, s->link, GELF_R_SYM(r.r_info)); 3356 symval = get_symbol_value(re, s->link, GELF_R_SYM(r.r_info)); 3357 if (re->ec == ELFCLASS32) { 3358 r.r_info = ELF32_R_INFO(ELF64_R_SYM(r.r_info), 3359 ELF64_R_TYPE(r.r_info)); 3360 printf("%8.8jx %8.8jx %-19.19s %8.8jx %s", RELA_CT32); 3361 printf(" + %x\n", (uint32_t) r.r_addend); 3362 } else { 3363 if (re->options & RE_WW) 3364 printf("%16.16jx %16.16jx %-24.24s" 3365 " %16.16jx %s", RELA_CT64); 3366 else 3367 printf("%12.12jx %12.12jx %-19.19s" 3368 " %16.16jx %s", RELA_CT64); 3369 printf(" + %jx\n", (uintmax_t) r.r_addend); 3370 } 3371 } 3372 3373 #undef RELA_HDR 3374 #undef RELA_CT 3375 } 3376 3377 static void 3378 dump_reloc(struct readelf *re) 3379 { 3380 struct section *s; 3381 Elf_Data *d; 3382 int i, elferr; 3383 3384 for (i = 0; (size_t)i < re->shnum; i++) { 3385 s = &re->sl[i]; 3386 if (s->type == SHT_REL || s->type == SHT_RELA) { 3387 (void) elf_errno(); 3388 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3389 elferr = elf_errno(); 3390 if (elferr != 0) 3391 warnx("elf_getdata failed: %s", 3392 elf_errmsg(elferr)); 3393 continue; 3394 } 3395 if (s->type == SHT_REL) 3396 dump_rel(re, s, d); 3397 else 3398 dump_rela(re, s, d); 3399 } 3400 } 3401 } 3402 3403 static void 3404 dump_symtab(struct readelf *re, int i) 3405 { 3406 struct section *s; 3407 Elf_Data *d; 3408 GElf_Sym sym; 3409 const char *name; 3410 uint32_t stab; 3411 int elferr, j, len; 3412 uint16_t vs; 3413 3414 s = &re->sl[i]; 3415 if (s->link >= re->shnum) 3416 return; 3417 stab = s->link; 3418 (void) elf_errno(); 3419 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3420 elferr = elf_errno(); 3421 if (elferr != 0) 3422 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 3423 return; 3424 } 3425 if (d->d_size <= 0) 3426 return; 3427 if (!get_ent_count(s, &len)) 3428 return; 3429 printf("Symbol table (%s)", s->name); 3430 printf(" contains %d entries:\n", len); 3431 printf("%7s%9s%14s%5s%8s%6s%9s%5s\n", "Num:", "Value", "Size", "Type", 3432 "Bind", "Vis", "Ndx", "Name"); 3433 3434 for (j = 0; j < len; j++) { 3435 if (gelf_getsym(d, j, &sym) != &sym) { 3436 warnx("gelf_getsym failed: %s", elf_errmsg(-1)); 3437 continue; 3438 } 3439 printf("%6d:", j); 3440 printf(" %16.16jx", (uintmax_t)sym.st_value); 3441 printf(" %5ju", sym.st_size); 3442 printf(" %-7s", st_type(GELF_ST_TYPE(sym.st_info))); 3443 printf(" %-6s", st_bind(GELF_ST_BIND(sym.st_info))); 3444 printf(" %-8s", st_vis(GELF_ST_VISIBILITY(sym.st_other))); 3445 printf(" %3s", st_shndx(sym.st_shndx)); 3446 if ((name = elf_strptr(re->elf, stab, sym.st_name)) != NULL) 3447 printf(" %s", name); 3448 /* Append symbol version string for SHT_DYNSYM symbol table. */ 3449 if (s->type == SHT_DYNSYM && re->ver != NULL && 3450 re->vs != NULL && re->vs[j] > 1) { 3451 vs = re->vs[j] & VERSYM_VERSION; 3452 if (vs >= re->ver_sz || re->ver[vs].name == NULL) { 3453 warnx("invalid versym version index %u", vs); 3454 break; 3455 } 3456 if (re->vs[j] & VERSYM_HIDDEN || re->ver[vs].type == 0) 3457 printf("@%s (%d)", re->ver[vs].name, vs); 3458 else 3459 printf("@@%s (%d)", re->ver[vs].name, vs); 3460 } 3461 putchar('\n'); 3462 } 3463 3464 } 3465 3466 static void 3467 dump_symtabs(struct readelf *re) 3468 { 3469 GElf_Dyn dyn; 3470 Elf_Data *d; 3471 struct section *s; 3472 uint64_t dyn_off; 3473 int elferr, i, len; 3474 3475 /* 3476 * If -D is specified, only dump the symbol table specified by 3477 * the DT_SYMTAB entry in the .dynamic section. 3478 */ 3479 dyn_off = 0; 3480 if (re->options & RE_DD) { 3481 s = NULL; 3482 for (i = 0; (size_t)i < re->shnum; i++) 3483 if (re->sl[i].type == SHT_DYNAMIC) { 3484 s = &re->sl[i]; 3485 break; 3486 } 3487 if (s == NULL) 3488 return; 3489 (void) elf_errno(); 3490 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3491 elferr = elf_errno(); 3492 if (elferr != 0) 3493 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 3494 return; 3495 } 3496 if (d->d_size <= 0) 3497 return; 3498 if (!get_ent_count(s, &len)) 3499 return; 3500 3501 for (i = 0; i < len; i++) { 3502 if (gelf_getdyn(d, i, &dyn) != &dyn) { 3503 warnx("gelf_getdyn failed: %s", elf_errmsg(-1)); 3504 continue; 3505 } 3506 if (dyn.d_tag == DT_SYMTAB) { 3507 dyn_off = dyn.d_un.d_val; 3508 break; 3509 } 3510 } 3511 } 3512 3513 /* Find and dump symbol tables. */ 3514 for (i = 0; (size_t)i < re->shnum; i++) { 3515 s = &re->sl[i]; 3516 if (s->type == SHT_SYMTAB || s->type == SHT_DYNSYM) { 3517 if (re->options & RE_DD) { 3518 if (dyn_off == s->addr) { 3519 dump_symtab(re, i); 3520 break; 3521 } 3522 } else 3523 dump_symtab(re, i); 3524 } 3525 } 3526 } 3527 3528 static void 3529 dump_svr4_hash(struct section *s) 3530 { 3531 Elf_Data *d; 3532 uint32_t *buf; 3533 uint32_t nbucket, nchain; 3534 uint32_t *bucket, *chain; 3535 uint32_t *bl, *c, maxl, total; 3536 int elferr, i, j; 3537 3538 /* Read and parse the content of .hash section. */ 3539 (void) elf_errno(); 3540 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3541 elferr = elf_errno(); 3542 if (elferr != 0) 3543 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 3544 return; 3545 } 3546 if (d->d_size < 2 * sizeof(uint32_t)) { 3547 warnx(".hash section too small"); 3548 return; 3549 } 3550 buf = d->d_buf; 3551 nbucket = buf[0]; 3552 nchain = buf[1]; 3553 if (nbucket <= 0 || nchain <= 0) { 3554 warnx("Malformed .hash section"); 3555 return; 3556 } 3557 if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) { 3558 warnx("Malformed .hash section"); 3559 return; 3560 } 3561 bucket = &buf[2]; 3562 chain = &buf[2 + nbucket]; 3563 3564 maxl = 0; 3565 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) 3566 errx(EXIT_FAILURE, "calloc failed"); 3567 for (i = 0; (uint32_t)i < nbucket; i++) 3568 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j]) 3569 if (++bl[i] > maxl) 3570 maxl = bl[i]; 3571 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) 3572 errx(EXIT_FAILURE, "calloc failed"); 3573 for (i = 0; (uint32_t)i < nbucket; i++) 3574 c[bl[i]]++; 3575 printf("\nHistogram for bucket list length (total of %u buckets):\n", 3576 nbucket); 3577 printf(" Length\tNumber\t\t%% of total\tCoverage\n"); 3578 total = 0; 3579 for (i = 0; (uint32_t)i <= maxl; i++) { 3580 total += c[i] * i; 3581 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i], 3582 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1)); 3583 } 3584 free(c); 3585 free(bl); 3586 } 3587 3588 static void 3589 dump_svr4_hash64(struct readelf *re, struct section *s) 3590 { 3591 Elf_Data *d, dst; 3592 uint64_t *buf; 3593 uint64_t nbucket, nchain; 3594 uint64_t *bucket, *chain; 3595 uint64_t *bl, *c, maxl, total; 3596 int elferr, i, j; 3597 3598 /* 3599 * ALPHA uses 64-bit hash entries. Since libelf assumes that 3600 * .hash section contains only 32-bit entry, an explicit 3601 * gelf_xlatetom is needed here. 3602 */ 3603 (void) elf_errno(); 3604 if ((d = elf_rawdata(s->scn, NULL)) == NULL) { 3605 elferr = elf_errno(); 3606 if (elferr != 0) 3607 warnx("elf_rawdata failed: %s", 3608 elf_errmsg(elferr)); 3609 return; 3610 } 3611 d->d_type = ELF_T_XWORD; 3612 memcpy(&dst, d, sizeof(Elf_Data)); 3613 if (gelf_xlatetom(re->elf, &dst, d, 3614 re->ehdr.e_ident[EI_DATA]) != &dst) { 3615 warnx("gelf_xlatetom failed: %s", elf_errmsg(-1)); 3616 return; 3617 } 3618 if (dst.d_size < 2 * sizeof(uint64_t)) { 3619 warnx(".hash section too small"); 3620 return; 3621 } 3622 buf = dst.d_buf; 3623 nbucket = buf[0]; 3624 nchain = buf[1]; 3625 if (nbucket <= 0 || nchain <= 0) { 3626 warnx("Malformed .hash section"); 3627 return; 3628 } 3629 if (d->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) { 3630 warnx("Malformed .hash section"); 3631 return; 3632 } 3633 bucket = &buf[2]; 3634 chain = &buf[2 + nbucket]; 3635 3636 maxl = 0; 3637 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) 3638 errx(EXIT_FAILURE, "calloc failed"); 3639 for (i = 0; (uint32_t)i < nbucket; i++) 3640 for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; j = chain[j]) 3641 if (++bl[i] > maxl) 3642 maxl = bl[i]; 3643 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) 3644 errx(EXIT_FAILURE, "calloc failed"); 3645 for (i = 0; (uint64_t)i < nbucket; i++) 3646 c[bl[i]]++; 3647 printf("Histogram for bucket list length (total of %ju buckets):\n", 3648 (uintmax_t)nbucket); 3649 printf(" Length\tNumber\t\t%% of total\tCoverage\n"); 3650 total = 0; 3651 for (i = 0; (uint64_t)i <= maxl; i++) { 3652 total += c[i] * i; 3653 printf("%7u\t%-10ju\t(%5.1f%%)\t%5.1f%%\n", i, (uintmax_t)c[i], 3654 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1)); 3655 } 3656 free(c); 3657 free(bl); 3658 } 3659 3660 static void 3661 dump_gnu_hash(struct readelf *re, struct section *s) 3662 { 3663 struct section *ds; 3664 Elf_Data *d; 3665 uint32_t *buf; 3666 uint32_t *bucket, *chain; 3667 uint32_t nbucket, nchain, symndx, maskwords; 3668 uint32_t *bl, *c, maxl, total; 3669 int elferr, dynsymcount, i, j; 3670 3671 (void) elf_errno(); 3672 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3673 elferr = elf_errno(); 3674 if (elferr != 0) 3675 warnx("elf_getdata failed: %s", 3676 elf_errmsg(elferr)); 3677 return; 3678 } 3679 if (d->d_size < 4 * sizeof(uint32_t)) { 3680 warnx(".gnu.hash section too small"); 3681 return; 3682 } 3683 buf = d->d_buf; 3684 nbucket = buf[0]; 3685 symndx = buf[1]; 3686 maskwords = buf[2]; 3687 buf += 4; 3688 if (s->link >= re->shnum) 3689 return; 3690 ds = &re->sl[s->link]; 3691 if (!get_ent_count(ds, &dynsymcount)) 3692 return; 3693 nchain = dynsymcount - symndx; 3694 if (d->d_size != 4 * sizeof(uint32_t) + maskwords * 3695 (re->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) + 3696 (nbucket + nchain) * sizeof(uint32_t)) { 3697 warnx("Malformed .gnu.hash section"); 3698 return; 3699 } 3700 bucket = buf + (re->ec == ELFCLASS32 ? maskwords : maskwords * 2); 3701 chain = bucket + nbucket; 3702 3703 maxl = 0; 3704 if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) 3705 errx(EXIT_FAILURE, "calloc failed"); 3706 for (i = 0; (uint32_t)i < nbucket; i++) 3707 for (j = bucket[i]; j > 0 && (uint32_t)j - symndx < nchain; 3708 j++) { 3709 if (++bl[i] > maxl) 3710 maxl = bl[i]; 3711 if (chain[j - symndx] & 1) 3712 break; 3713 } 3714 if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) 3715 errx(EXIT_FAILURE, "calloc failed"); 3716 for (i = 0; (uint32_t)i < nbucket; i++) 3717 c[bl[i]]++; 3718 printf("Histogram for bucket list length (total of %u buckets):\n", 3719 nbucket); 3720 printf(" Length\tNumber\t\t%% of total\tCoverage\n"); 3721 total = 0; 3722 for (i = 0; (uint32_t)i <= maxl; i++) { 3723 total += c[i] * i; 3724 printf("%7u\t%-10u\t(%5.1f%%)\t%5.1f%%\n", i, c[i], 3725 c[i] * 100.0 / nbucket, total * 100.0 / (nchain - 1)); 3726 } 3727 free(c); 3728 free(bl); 3729 } 3730 3731 static void 3732 dump_hash(struct readelf *re) 3733 { 3734 struct section *s; 3735 int i; 3736 3737 for (i = 0; (size_t) i < re->shnum; i++) { 3738 s = &re->sl[i]; 3739 if (s->type == SHT_HASH || s->type == SHT_GNU_HASH) { 3740 if (s->type == SHT_GNU_HASH) 3741 dump_gnu_hash(re, s); 3742 else if (re->ehdr.e_machine == EM_ALPHA && 3743 s->entsize == 8) 3744 dump_svr4_hash64(re, s); 3745 else 3746 dump_svr4_hash(s); 3747 } 3748 } 3749 } 3750 3751 static void 3752 dump_notes(struct readelf *re) 3753 { 3754 struct section *s; 3755 const char *rawfile; 3756 GElf_Phdr phdr; 3757 Elf_Data *d; 3758 size_t phnum; 3759 int i, elferr; 3760 3761 if (re->ehdr.e_type == ET_CORE) { 3762 /* 3763 * Search program headers in the core file for 3764 * PT_NOTE entry. 3765 */ 3766 if (elf_getphnum(re->elf, &phnum) == 0) { 3767 warnx("elf_getphnum failed: %s", elf_errmsg(-1)); 3768 return; 3769 } 3770 if (phnum == 0) 3771 return; 3772 if ((rawfile = elf_rawfile(re->elf, NULL)) == NULL) { 3773 warnx("elf_rawfile failed: %s", elf_errmsg(-1)); 3774 return; 3775 } 3776 for (i = 0; (size_t) i < phnum; i++) { 3777 if (gelf_getphdr(re->elf, i, &phdr) != &phdr) { 3778 warnx("gelf_getphdr failed: %s", 3779 elf_errmsg(-1)); 3780 continue; 3781 } 3782 if (phdr.p_type == PT_NOTE) 3783 dump_notes_content(re, rawfile + phdr.p_offset, 3784 phdr.p_filesz, phdr.p_offset); 3785 } 3786 3787 } else { 3788 /* 3789 * For objects other than core files, Search for 3790 * SHT_NOTE sections. 3791 */ 3792 for (i = 0; (size_t) i < re->shnum; i++) { 3793 s = &re->sl[i]; 3794 if (s->type == SHT_NOTE) { 3795 (void) elf_errno(); 3796 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3797 elferr = elf_errno(); 3798 if (elferr != 0) 3799 warnx("elf_getdata failed: %s", 3800 elf_errmsg(elferr)); 3801 continue; 3802 } 3803 dump_notes_content(re, d->d_buf, d->d_size, 3804 s->off); 3805 } 3806 } 3807 } 3808 } 3809 3810 static void 3811 dump_notes_content(struct readelf *re, const char *buf, size_t sz, off_t off) 3812 { 3813 Elf_Note *note; 3814 const char *end, *name; 3815 3816 printf("\nNotes at offset %#010jx with length %#010jx:\n", 3817 (uintmax_t) off, (uintmax_t) sz); 3818 printf(" %-13s %-15s %s\n", "Owner", "Data size", "Description"); 3819 end = buf + sz; 3820 while (buf < end) { 3821 if (buf + sizeof(*note) > end) { 3822 warnx("invalid note header"); 3823 return; 3824 } 3825 note = (Elf_Note *)(uintptr_t) buf; 3826 name = (char *)(uintptr_t)(note + 1); 3827 /* 3828 * The name field is required to be nul-terminated, and 3829 * n_namesz includes the terminating nul in observed 3830 * implementations (contrary to the ELF-64 spec). A special 3831 * case is needed for cores generated by some older Linux 3832 * versions, which write a note named "CORE" without a nul 3833 * terminator and n_namesz = 4. 3834 */ 3835 if (note->n_namesz == 0) 3836 name = ""; 3837 else if (note->n_namesz == 4 && strncmp(name, "CORE", 4) == 0) 3838 name = "CORE"; 3839 else if (strnlen(name, note->n_namesz) >= note->n_namesz) 3840 name = "<invalid>"; 3841 printf(" %-13s %#010jx", name, (uintmax_t) note->n_descsz); 3842 printf(" %s\n", note_type(name, re->ehdr.e_type, 3843 note->n_type)); 3844 buf += sizeof(Elf_Note) + roundup2(note->n_namesz, 4) + 3845 roundup2(note->n_descsz, 4); 3846 } 3847 } 3848 3849 /* 3850 * Symbol versioning sections are the same for 32bit and 64bit 3851 * ELF objects. 3852 */ 3853 #define Elf_Verdef Elf32_Verdef 3854 #define Elf_Verdaux Elf32_Verdaux 3855 #define Elf_Verneed Elf32_Verneed 3856 #define Elf_Vernaux Elf32_Vernaux 3857 3858 #define SAVE_VERSION_NAME(x, n, t) \ 3859 do { \ 3860 while (x >= re->ver_sz) { \ 3861 nv = realloc(re->ver, \ 3862 sizeof(*re->ver) * re->ver_sz * 2); \ 3863 if (nv == NULL) { \ 3864 warn("realloc failed"); \ 3865 free(re->ver); \ 3866 return; \ 3867 } \ 3868 re->ver = nv; \ 3869 for (i = re->ver_sz; i < re->ver_sz * 2; i++) { \ 3870 re->ver[i].name = NULL; \ 3871 re->ver[i].type = 0; \ 3872 } \ 3873 re->ver_sz *= 2; \ 3874 } \ 3875 if (x > 1) { \ 3876 re->ver[x].name = n; \ 3877 re->ver[x].type = t; \ 3878 } \ 3879 } while (0) 3880 3881 3882 static void 3883 dump_verdef(struct readelf *re, int dump) 3884 { 3885 struct section *s; 3886 struct symver *nv; 3887 Elf_Data *d; 3888 Elf_Verdef *vd; 3889 Elf_Verdaux *vda; 3890 uint8_t *buf, *end, *buf2; 3891 const char *name; 3892 int elferr, i, j; 3893 3894 if ((s = re->vd_s) == NULL) 3895 return; 3896 if (s->link >= re->shnum) 3897 return; 3898 3899 if (re->ver == NULL) { 3900 re->ver_sz = 16; 3901 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) == 3902 NULL) { 3903 warn("calloc failed"); 3904 return; 3905 } 3906 re->ver[0].name = "*local*"; 3907 re->ver[1].name = "*global*"; 3908 } 3909 3910 if (dump) 3911 printf("\nVersion definition section (%s):\n", s->name); 3912 (void) elf_errno(); 3913 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3914 elferr = elf_errno(); 3915 if (elferr != 0) 3916 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 3917 return; 3918 } 3919 if (d->d_size == 0) 3920 return; 3921 3922 buf = d->d_buf; 3923 end = buf + d->d_size; 3924 while (buf + sizeof(Elf_Verdef) <= end) { 3925 vd = (Elf_Verdef *) (uintptr_t) buf; 3926 if (dump) { 3927 printf(" 0x%4.4lx", (unsigned long) 3928 (buf - (uint8_t *)d->d_buf)); 3929 printf(" vd_version: %u vd_flags: %d" 3930 " vd_ndx: %u vd_cnt: %u", vd->vd_version, 3931 vd->vd_flags, vd->vd_ndx, vd->vd_cnt); 3932 } 3933 buf2 = buf + vd->vd_aux; 3934 j = 0; 3935 while (buf2 + sizeof(Elf_Verdaux) <= end && j < vd->vd_cnt) { 3936 vda = (Elf_Verdaux *) (uintptr_t) buf2; 3937 name = get_string(re, s->link, vda->vda_name); 3938 if (j == 0) { 3939 if (dump) 3940 printf(" vda_name: %s\n", name); 3941 SAVE_VERSION_NAME((int)vd->vd_ndx, name, 1); 3942 } else if (dump) 3943 printf(" 0x%4.4lx parent: %s\n", 3944 (unsigned long) (buf2 - 3945 (uint8_t *)d->d_buf), name); 3946 if (vda->vda_next == 0) 3947 break; 3948 buf2 += vda->vda_next; 3949 j++; 3950 } 3951 if (vd->vd_next == 0) 3952 break; 3953 buf += vd->vd_next; 3954 } 3955 } 3956 3957 static void 3958 dump_verneed(struct readelf *re, int dump) 3959 { 3960 struct section *s; 3961 struct symver *nv; 3962 Elf_Data *d; 3963 Elf_Verneed *vn; 3964 Elf_Vernaux *vna; 3965 uint8_t *buf, *end, *buf2; 3966 const char *name; 3967 int elferr, i, j; 3968 3969 if ((s = re->vn_s) == NULL) 3970 return; 3971 if (s->link >= re->shnum) 3972 return; 3973 3974 if (re->ver == NULL) { 3975 re->ver_sz = 16; 3976 if ((re->ver = calloc(re->ver_sz, sizeof(*re->ver))) == 3977 NULL) { 3978 warn("calloc failed"); 3979 return; 3980 } 3981 re->ver[0].name = "*local*"; 3982 re->ver[1].name = "*global*"; 3983 } 3984 3985 if (dump) 3986 printf("\nVersion needed section (%s):\n", s->name); 3987 (void) elf_errno(); 3988 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 3989 elferr = elf_errno(); 3990 if (elferr != 0) 3991 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 3992 return; 3993 } 3994 if (d->d_size == 0) 3995 return; 3996 3997 buf = d->d_buf; 3998 end = buf + d->d_size; 3999 while (buf + sizeof(Elf_Verneed) <= end) { 4000 vn = (Elf_Verneed *) (uintptr_t) buf; 4001 if (dump) { 4002 printf(" 0x%4.4lx", (unsigned long) 4003 (buf - (uint8_t *)d->d_buf)); 4004 printf(" vn_version: %u vn_file: %s vn_cnt: %u\n", 4005 vn->vn_version, 4006 get_string(re, s->link, vn->vn_file), 4007 vn->vn_cnt); 4008 } 4009 buf2 = buf + vn->vn_aux; 4010 j = 0; 4011 while (buf2 + sizeof(Elf_Vernaux) <= end && j < vn->vn_cnt) { 4012 vna = (Elf32_Vernaux *) (uintptr_t) buf2; 4013 if (dump) 4014 printf(" 0x%4.4lx", (unsigned long) 4015 (buf2 - (uint8_t *)d->d_buf)); 4016 name = get_string(re, s->link, vna->vna_name); 4017 if (dump) 4018 printf(" vna_name: %s vna_flags: %u" 4019 " vna_other: %u\n", name, 4020 vna->vna_flags, vna->vna_other); 4021 SAVE_VERSION_NAME((int)vna->vna_other, name, 0); 4022 if (vna->vna_next == 0) 4023 break; 4024 buf2 += vna->vna_next; 4025 j++; 4026 } 4027 if (vn->vn_next == 0) 4028 break; 4029 buf += vn->vn_next; 4030 } 4031 } 4032 4033 static void 4034 dump_versym(struct readelf *re) 4035 { 4036 int i; 4037 uint16_t vs; 4038 4039 if (re->vs_s == NULL || re->ver == NULL || re->vs == NULL) 4040 return; 4041 printf("\nVersion symbol section (%s):\n", re->vs_s->name); 4042 for (i = 0; i < re->vs_sz; i++) { 4043 if ((i & 3) == 0) { 4044 if (i > 0) 4045 putchar('\n'); 4046 printf(" %03x:", i); 4047 } 4048 vs = re->vs[i] & VERSYM_VERSION; 4049 if (vs >= re->ver_sz || re->ver[vs].name == NULL) { 4050 warnx("invalid versym version index %u", re->vs[i]); 4051 break; 4052 } 4053 if (re->vs[i] & VERSYM_HIDDEN) 4054 printf(" %3xh %-12s ", vs, 4055 re->ver[re->vs[i] & VERSYM_VERSION].name); 4056 else 4057 printf(" %3x %-12s ", vs, re->ver[re->vs[i]].name); 4058 } 4059 putchar('\n'); 4060 } 4061 4062 static void 4063 dump_ver(struct readelf *re) 4064 { 4065 4066 if (re->vs_s && re->ver && re->vs) 4067 dump_versym(re); 4068 if (re->vd_s) 4069 dump_verdef(re, 1); 4070 if (re->vn_s) 4071 dump_verneed(re, 1); 4072 } 4073 4074 static void 4075 search_ver(struct readelf *re) 4076 { 4077 struct section *s; 4078 Elf_Data *d; 4079 int elferr, i; 4080 4081 for (i = 0; (size_t) i < re->shnum; i++) { 4082 s = &re->sl[i]; 4083 if (s->type == SHT_SUNW_versym) 4084 re->vs_s = s; 4085 if (s->type == SHT_SUNW_verneed) 4086 re->vn_s = s; 4087 if (s->type == SHT_SUNW_verdef) 4088 re->vd_s = s; 4089 } 4090 if (re->vd_s) 4091 dump_verdef(re, 0); 4092 if (re->vn_s) 4093 dump_verneed(re, 0); 4094 if (re->vs_s && re->ver != NULL) { 4095 (void) elf_errno(); 4096 if ((d = elf_getdata(re->vs_s->scn, NULL)) == NULL) { 4097 elferr = elf_errno(); 4098 if (elferr != 0) 4099 warnx("elf_getdata failed: %s", 4100 elf_errmsg(elferr)); 4101 return; 4102 } 4103 if (d->d_size == 0) 4104 return; 4105 re->vs = d->d_buf; 4106 re->vs_sz = d->d_size / sizeof(Elf32_Half); 4107 } 4108 } 4109 4110 #undef Elf_Verdef 4111 #undef Elf_Verdaux 4112 #undef Elf_Verneed 4113 #undef Elf_Vernaux 4114 #undef SAVE_VERSION_NAME 4115 4116 /* 4117 * Elf32_Lib and Elf64_Lib are identical. 4118 */ 4119 #define Elf_Lib Elf32_Lib 4120 4121 static void 4122 dump_liblist(struct readelf *re) 4123 { 4124 struct section *s; 4125 struct tm *t; 4126 time_t ti; 4127 char tbuf[20]; 4128 Elf_Data *d; 4129 Elf_Lib *lib; 4130 int i, j, k, elferr, first, len; 4131 4132 for (i = 0; (size_t) i < re->shnum; i++) { 4133 s = &re->sl[i]; 4134 if (s->type != SHT_GNU_LIBLIST) 4135 continue; 4136 if (s->link >= re->shnum) 4137 continue; 4138 (void) elf_errno(); 4139 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 4140 elferr = elf_errno(); 4141 if (elferr != 0) 4142 warnx("elf_getdata failed: %s", 4143 elf_errmsg(elferr)); 4144 continue; 4145 } 4146 if (d->d_size <= 0) 4147 continue; 4148 lib = d->d_buf; 4149 if (!get_ent_count(s, &len)) 4150 continue; 4151 printf("\nLibrary list section '%s' ", s->name); 4152 printf("contains %d entries:\n", len); 4153 printf("%12s%24s%18s%10s%6s\n", "Library", "Time Stamp", 4154 "Checksum", "Version", "Flags"); 4155 for (j = 0; (uint64_t) j < s->sz / s->entsize; j++) { 4156 printf("%3d: ", j); 4157 printf("%-20.20s ", 4158 get_string(re, s->link, lib->l_name)); 4159 ti = lib->l_time_stamp; 4160 t = gmtime(&ti); 4161 snprintf(tbuf, sizeof(tbuf), "%04d-%02d-%02dT%02d:%02d" 4162 ":%2d", t->tm_year + 1900, t->tm_mon + 1, 4163 t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec); 4164 printf("%-19.19s ", tbuf); 4165 printf("0x%08x ", lib->l_checksum); 4166 printf("%-7d %#x", lib->l_version, lib->l_flags); 4167 if (lib->l_flags != 0) { 4168 first = 1; 4169 putchar('('); 4170 for (k = 0; l_flag[k].name != NULL; k++) { 4171 if ((l_flag[k].value & lib->l_flags) == 4172 0) 4173 continue; 4174 if (!first) 4175 putchar(','); 4176 else 4177 first = 0; 4178 printf("%s", l_flag[k].name); 4179 } 4180 putchar(')'); 4181 } 4182 putchar('\n'); 4183 lib++; 4184 } 4185 } 4186 } 4187 4188 #undef Elf_Lib 4189 4190 static void 4191 dump_section_groups(struct readelf *re) 4192 { 4193 struct section *s; 4194 const char *symname; 4195 Elf_Data *d; 4196 uint32_t *w; 4197 int i, j, elferr; 4198 size_t n; 4199 4200 for (i = 0; (size_t) i < re->shnum; i++) { 4201 s = &re->sl[i]; 4202 if (s->type != SHT_GROUP) 4203 continue; 4204 if (s->link >= re->shnum) 4205 continue; 4206 (void) elf_errno(); 4207 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 4208 elferr = elf_errno(); 4209 if (elferr != 0) 4210 warnx("elf_getdata failed: %s", 4211 elf_errmsg(elferr)); 4212 continue; 4213 } 4214 if (d->d_size <= 0) 4215 continue; 4216 4217 w = d->d_buf; 4218 4219 /* We only support COMDAT section. */ 4220 #ifndef GRP_COMDAT 4221 #define GRP_COMDAT 0x1 4222 #endif 4223 if ((*w++ & GRP_COMDAT) == 0) 4224 return; 4225 4226 if (s->entsize == 0) 4227 s->entsize = 4; 4228 4229 symname = get_symbol_name(re, s->link, s->info); 4230 n = s->sz / s->entsize; 4231 if (n-- < 1) 4232 return; 4233 4234 printf("\nCOMDAT group section [%5d] `%s' [%s] contains %ju" 4235 " sections:\n", i, s->name, symname, (uintmax_t)n); 4236 printf(" %-10.10s %s\n", "[Index]", "Name"); 4237 for (j = 0; (size_t) j < n; j++, w++) { 4238 if (*w >= re->shnum) { 4239 warnx("invalid section index: %u", *w); 4240 continue; 4241 } 4242 printf(" [%5u] %s\n", *w, re->sl[*w].name); 4243 } 4244 } 4245 } 4246 4247 static uint8_t * 4248 dump_unknown_tag(uint64_t tag, uint8_t *p) 4249 { 4250 uint64_t val; 4251 4252 /* 4253 * According to ARM EABI: For tags > 32, even numbered tags have 4254 * a ULEB128 param and odd numbered ones have NUL-terminated 4255 * string param. This rule probably also applies for tags <= 32 4256 * if the object arch is not ARM. 4257 */ 4258 4259 printf(" Tag_unknown_%ju: ", (uintmax_t) tag); 4260 4261 if (tag & 1) { 4262 printf("%s\n", (char *) p); 4263 p += strlen((char *) p) + 1; 4264 } else { 4265 val = _decode_uleb128(&p); 4266 printf("%ju\n", (uintmax_t) val); 4267 } 4268 4269 return (p); 4270 } 4271 4272 static uint8_t * 4273 dump_compatibility_tag(uint8_t *p) 4274 { 4275 uint64_t val; 4276 4277 val = _decode_uleb128(&p); 4278 printf("flag = %ju, vendor = %s\n", val, p); 4279 p += strlen((char *) p) + 1; 4280 4281 return (p); 4282 } 4283 4284 static void 4285 dump_arm_attributes(struct readelf *re, uint8_t *p, uint8_t *pe) 4286 { 4287 uint64_t tag, val; 4288 size_t i; 4289 int found, desc; 4290 4291 (void) re; 4292 4293 while (p < pe) { 4294 tag = _decode_uleb128(&p); 4295 found = desc = 0; 4296 for (i = 0; i < sizeof(aeabi_tags) / sizeof(aeabi_tags[0]); 4297 i++) { 4298 if (tag == aeabi_tags[i].tag) { 4299 found = 1; 4300 printf(" %s: ", aeabi_tags[i].s_tag); 4301 if (aeabi_tags[i].get_desc) { 4302 desc = 1; 4303 val = _decode_uleb128(&p); 4304 printf("%s\n", 4305 aeabi_tags[i].get_desc(val)); 4306 } 4307 break; 4308 } 4309 if (tag < aeabi_tags[i].tag) 4310 break; 4311 } 4312 if (!found) { 4313 p = dump_unknown_tag(tag, p); 4314 continue; 4315 } 4316 if (desc) 4317 continue; 4318 4319 switch (tag) { 4320 case 4: /* Tag_CPU_raw_name */ 4321 case 5: /* Tag_CPU_name */ 4322 case 67: /* Tag_conformance */ 4323 printf("%s\n", (char *) p); 4324 p += strlen((char *) p) + 1; 4325 break; 4326 case 32: /* Tag_compatibility */ 4327 p = dump_compatibility_tag(p); 4328 break; 4329 case 64: /* Tag_nodefaults */ 4330 /* ignored, written as 0. */ 4331 (void) _decode_uleb128(&p); 4332 printf("True\n"); 4333 break; 4334 case 65: /* Tag_also_compatible_with */ 4335 val = _decode_uleb128(&p); 4336 /* Must be Tag_CPU_arch */ 4337 if (val != 6) { 4338 printf("unknown\n"); 4339 break; 4340 } 4341 val = _decode_uleb128(&p); 4342 printf("%s\n", aeabi_cpu_arch(val)); 4343 /* Skip NUL terminator. */ 4344 p++; 4345 break; 4346 default: 4347 putchar('\n'); 4348 break; 4349 } 4350 } 4351 } 4352 4353 #ifndef Tag_GNU_MIPS_ABI_FP 4354 #define Tag_GNU_MIPS_ABI_FP 4 4355 #endif 4356 4357 static void 4358 dump_mips_attributes(struct readelf *re, uint8_t *p, uint8_t *pe) 4359 { 4360 uint64_t tag, val; 4361 4362 (void) re; 4363 4364 while (p < pe) { 4365 tag = _decode_uleb128(&p); 4366 switch (tag) { 4367 case Tag_GNU_MIPS_ABI_FP: 4368 val = _decode_uleb128(&p); 4369 printf(" Tag_GNU_MIPS_ABI_FP: %s\n", mips_abi_fp(val)); 4370 break; 4371 case 32: /* Tag_compatibility */ 4372 p = dump_compatibility_tag(p); 4373 break; 4374 default: 4375 p = dump_unknown_tag(tag, p); 4376 break; 4377 } 4378 } 4379 } 4380 4381 #ifndef Tag_GNU_Power_ABI_FP 4382 #define Tag_GNU_Power_ABI_FP 4 4383 #endif 4384 4385 #ifndef Tag_GNU_Power_ABI_Vector 4386 #define Tag_GNU_Power_ABI_Vector 8 4387 #endif 4388 4389 static void 4390 dump_ppc_attributes(uint8_t *p, uint8_t *pe) 4391 { 4392 uint64_t tag, val; 4393 4394 while (p < pe) { 4395 tag = _decode_uleb128(&p); 4396 switch (tag) { 4397 case Tag_GNU_Power_ABI_FP: 4398 val = _decode_uleb128(&p); 4399 printf(" Tag_GNU_Power_ABI_FP: %s\n", ppc_abi_fp(val)); 4400 break; 4401 case Tag_GNU_Power_ABI_Vector: 4402 val = _decode_uleb128(&p); 4403 printf(" Tag_GNU_Power_ABI_Vector: %s\n", 4404 ppc_abi_vector(val)); 4405 break; 4406 case 32: /* Tag_compatibility */ 4407 p = dump_compatibility_tag(p); 4408 break; 4409 default: 4410 p = dump_unknown_tag(tag, p); 4411 break; 4412 } 4413 } 4414 } 4415 4416 static void 4417 dump_attributes(struct readelf *re) 4418 { 4419 struct section *s; 4420 Elf_Data *d; 4421 uint8_t *p, *sp; 4422 size_t len, seclen, nlen, sublen; 4423 uint64_t val; 4424 int tag, i, elferr; 4425 4426 for (i = 0; (size_t) i < re->shnum; i++) { 4427 s = &re->sl[i]; 4428 if (s->type != SHT_GNU_ATTRIBUTES && 4429 (re->ehdr.e_machine != EM_ARM || s->type != SHT_LOPROC + 3)) 4430 continue; 4431 (void) elf_errno(); 4432 if ((d = elf_rawdata(s->scn, NULL)) == NULL) { 4433 elferr = elf_errno(); 4434 if (elferr != 0) 4435 warnx("elf_rawdata failed: %s", 4436 elf_errmsg(elferr)); 4437 continue; 4438 } 4439 if (d->d_size <= 0) 4440 continue; 4441 p = d->d_buf; 4442 if (*p != 'A') { 4443 printf("Unknown Attribute Section Format: %c\n", 4444 (char) *p); 4445 continue; 4446 } 4447 len = d->d_size - 1; 4448 p++; 4449 while (len > 0) { 4450 if (len < 4) { 4451 warnx("truncated attribute section length"); 4452 break; 4453 } 4454 seclen = re->dw_decode(&p, 4); 4455 if (seclen > len) { 4456 warnx("invalid attribute section length"); 4457 break; 4458 } 4459 len -= seclen; 4460 nlen = strlen((char *) p) + 1; 4461 if (nlen + 4 > seclen) { 4462 warnx("invalid attribute section name"); 4463 break; 4464 } 4465 printf("Attribute Section: %s\n", (char *) p); 4466 p += nlen; 4467 seclen -= nlen + 4; 4468 while (seclen > 0) { 4469 sp = p; 4470 tag = *p++; 4471 sublen = re->dw_decode(&p, 4); 4472 if (sublen > seclen) { 4473 warnx("invalid attribute sub-section" 4474 " length"); 4475 break; 4476 } 4477 seclen -= sublen; 4478 printf("%s", top_tag(tag)); 4479 if (tag == 2 || tag == 3) { 4480 putchar(':'); 4481 for (;;) { 4482 val = _decode_uleb128(&p); 4483 if (val == 0) 4484 break; 4485 printf(" %ju", (uintmax_t) val); 4486 } 4487 } 4488 putchar('\n'); 4489 if (re->ehdr.e_machine == EM_ARM && 4490 s->type == SHT_LOPROC + 3) 4491 dump_arm_attributes(re, p, sp + sublen); 4492 else if (re->ehdr.e_machine == EM_MIPS || 4493 re->ehdr.e_machine == EM_MIPS_RS3_LE) 4494 dump_mips_attributes(re, p, 4495 sp + sublen); 4496 else if (re->ehdr.e_machine == EM_PPC) 4497 dump_ppc_attributes(p, sp + sublen); 4498 p = sp + sublen; 4499 } 4500 } 4501 } 4502 } 4503 4504 static void 4505 dump_mips_specific_info(struct readelf *re) 4506 { 4507 struct section *s; 4508 int i, options_found; 4509 4510 options_found = 0; 4511 s = NULL; 4512 for (i = 0; (size_t) i < re->shnum; i++) { 4513 s = &re->sl[i]; 4514 if (s->name != NULL && (!strcmp(s->name, ".MIPS.options") || 4515 (s->type == SHT_MIPS_OPTIONS))) { 4516 dump_mips_options(re, s); 4517 options_found = 1; 4518 } 4519 } 4520 4521 /* 4522 * According to SGI mips64 spec, .reginfo should be ignored if 4523 * .MIPS.options section is present. 4524 */ 4525 if (!options_found) { 4526 for (i = 0; (size_t) i < re->shnum; i++) { 4527 s = &re->sl[i]; 4528 if (s->name != NULL && (!strcmp(s->name, ".reginfo") || 4529 (s->type == SHT_MIPS_REGINFO))) 4530 dump_mips_reginfo(re, s); 4531 } 4532 } 4533 } 4534 4535 static void 4536 dump_mips_reginfo(struct readelf *re, struct section *s) 4537 { 4538 Elf_Data *d; 4539 int elferr, len; 4540 4541 (void) elf_errno(); 4542 if ((d = elf_rawdata(s->scn, NULL)) == NULL) { 4543 elferr = elf_errno(); 4544 if (elferr != 0) 4545 warnx("elf_rawdata failed: %s", 4546 elf_errmsg(elferr)); 4547 return; 4548 } 4549 if (d->d_size <= 0) 4550 return; 4551 if (!get_ent_count(s, &len)) 4552 return; 4553 4554 printf("\nSection '%s' contains %d entries:\n", s->name, len); 4555 dump_mips_odk_reginfo(re, d->d_buf, d->d_size); 4556 } 4557 4558 static void 4559 dump_mips_options(struct readelf *re, struct section *s) 4560 { 4561 Elf_Data *d; 4562 uint32_t info; 4563 uint16_t sndx; 4564 uint8_t *p, *pe; 4565 uint8_t kind, size; 4566 int elferr; 4567 4568 (void) elf_errno(); 4569 if ((d = elf_rawdata(s->scn, NULL)) == NULL) { 4570 elferr = elf_errno(); 4571 if (elferr != 0) 4572 warnx("elf_rawdata failed: %s", 4573 elf_errmsg(elferr)); 4574 return; 4575 } 4576 if (d->d_size == 0) 4577 return; 4578 4579 printf("\nSection %s contains:\n", s->name); 4580 p = d->d_buf; 4581 pe = p + d->d_size; 4582 while (p < pe) { 4583 if (pe - p < 8) { 4584 warnx("Truncated MIPS option header"); 4585 return; 4586 } 4587 kind = re->dw_decode(&p, 1); 4588 size = re->dw_decode(&p, 1); 4589 sndx = re->dw_decode(&p, 2); 4590 info = re->dw_decode(&p, 4); 4591 if (size < 8 || size - 8 > pe - p) { 4592 warnx("Malformed MIPS option header"); 4593 return; 4594 } 4595 size -= 8; 4596 switch (kind) { 4597 case ODK_REGINFO: 4598 dump_mips_odk_reginfo(re, p, size); 4599 break; 4600 case ODK_EXCEPTIONS: 4601 printf(" EXCEPTIONS FPU_MIN: %#x\n", 4602 info & OEX_FPU_MIN); 4603 printf("%11.11s FPU_MAX: %#x\n", "", 4604 info & OEX_FPU_MAX); 4605 dump_mips_option_flags("", mips_exceptions_option, 4606 info); 4607 break; 4608 case ODK_PAD: 4609 printf(" %-10.10s section: %ju\n", "OPAD", 4610 (uintmax_t) sndx); 4611 dump_mips_option_flags("", mips_pad_option, info); 4612 break; 4613 case ODK_HWPATCH: 4614 dump_mips_option_flags("HWPATCH", mips_hwpatch_option, 4615 info); 4616 break; 4617 case ODK_HWAND: 4618 dump_mips_option_flags("HWAND", mips_hwa_option, info); 4619 break; 4620 case ODK_HWOR: 4621 dump_mips_option_flags("HWOR", mips_hwo_option, info); 4622 break; 4623 case ODK_FILL: 4624 printf(" %-10.10s %#jx\n", "FILL", (uintmax_t) info); 4625 break; 4626 case ODK_TAGS: 4627 printf(" %-10.10s\n", "TAGS"); 4628 break; 4629 case ODK_GP_GROUP: 4630 printf(" %-10.10s GP group number: %#x\n", "GP_GROUP", 4631 info & 0xFFFF); 4632 if (info & 0x10000) 4633 printf(" %-10.10s GP group is " 4634 "self-contained\n", ""); 4635 break; 4636 case ODK_IDENT: 4637 printf(" %-10.10s default GP group number: %#x\n", 4638 "IDENT", info & 0xFFFF); 4639 if (info & 0x10000) 4640 printf(" %-10.10s default GP group is " 4641 "self-contained\n", ""); 4642 break; 4643 case ODK_PAGESIZE: 4644 printf(" %-10.10s\n", "PAGESIZE"); 4645 break; 4646 default: 4647 break; 4648 } 4649 p += size; 4650 } 4651 } 4652 4653 static void 4654 dump_mips_option_flags(const char *name, struct mips_option *opt, uint64_t info) 4655 { 4656 int first; 4657 4658 first = 1; 4659 for (; opt->desc != NULL; opt++) { 4660 if (info & opt->flag) { 4661 printf(" %-10.10s %s\n", first ? name : "", 4662 opt->desc); 4663 first = 0; 4664 } 4665 } 4666 } 4667 4668 static void 4669 dump_mips_odk_reginfo(struct readelf *re, uint8_t *p, size_t sz) 4670 { 4671 uint32_t ri_gprmask; 4672 uint32_t ri_cprmask[4]; 4673 uint64_t ri_gp_value; 4674 uint8_t *pe; 4675 int i; 4676 4677 pe = p + sz; 4678 while (p < pe) { 4679 ri_gprmask = re->dw_decode(&p, 4); 4680 /* Skip ri_pad padding field for mips64. */ 4681 if (re->ec == ELFCLASS64) 4682 re->dw_decode(&p, 4); 4683 for (i = 0; i < 4; i++) 4684 ri_cprmask[i] = re->dw_decode(&p, 4); 4685 if (re->ec == ELFCLASS32) 4686 ri_gp_value = re->dw_decode(&p, 4); 4687 else 4688 ri_gp_value = re->dw_decode(&p, 8); 4689 printf(" %s ", option_kind(ODK_REGINFO)); 4690 printf("ri_gprmask: 0x%08jx\n", (uintmax_t) ri_gprmask); 4691 for (i = 0; i < 4; i++) 4692 printf("%11.11s ri_cprmask[%d]: 0x%08jx\n", "", i, 4693 (uintmax_t) ri_cprmask[i]); 4694 printf("%12.12s", ""); 4695 printf("ri_gp_value: %#jx\n", (uintmax_t) ri_gp_value); 4696 } 4697 } 4698 4699 static void 4700 dump_arch_specific_info(struct readelf *re) 4701 { 4702 4703 dump_liblist(re); 4704 dump_attributes(re); 4705 4706 switch (re->ehdr.e_machine) { 4707 case EM_MIPS: 4708 case EM_MIPS_RS3_LE: 4709 dump_mips_specific_info(re); 4710 default: 4711 break; 4712 } 4713 } 4714 4715 static const char * 4716 dwarf_regname(struct readelf *re, unsigned int num) 4717 { 4718 static char rx[32]; 4719 const char *rn; 4720 4721 if ((rn = dwarf_reg(re->ehdr.e_machine, num)) != NULL) 4722 return (rn); 4723 4724 snprintf(rx, sizeof(rx), "r%u", num); 4725 4726 return (rx); 4727 } 4728 4729 static void 4730 dump_dwarf_line(struct readelf *re) 4731 { 4732 struct section *s; 4733 Dwarf_Die die; 4734 Dwarf_Error de; 4735 Dwarf_Half tag, version, pointer_size; 4736 Dwarf_Unsigned offset, endoff, length, hdrlen, dirndx, mtime, fsize; 4737 Dwarf_Small minlen, defstmt, lrange, opbase, oplen; 4738 Elf_Data *d; 4739 char *pn; 4740 uint64_t address, file, line, column, isa, opsize, udelta; 4741 int64_t sdelta; 4742 uint8_t *p, *pe; 4743 int8_t lbase; 4744 int i, is_stmt, dwarf_size, elferr, ret; 4745 4746 printf("\nDump of debug contents of section .debug_line:\n"); 4747 4748 s = NULL; 4749 for (i = 0; (size_t) i < re->shnum; i++) { 4750 s = &re->sl[i]; 4751 if (s->name != NULL && !strcmp(s->name, ".debug_line")) 4752 break; 4753 } 4754 if ((size_t) i >= re->shnum) 4755 return; 4756 4757 (void) elf_errno(); 4758 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 4759 elferr = elf_errno(); 4760 if (elferr != 0) 4761 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 4762 return; 4763 } 4764 if (d->d_size <= 0) 4765 return; 4766 4767 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL, 4768 NULL, &de)) == DW_DLV_OK) { 4769 die = NULL; 4770 while (dwarf_siblingof(re->dbg, die, &die, &de) == DW_DLV_OK) { 4771 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 4772 warnx("dwarf_tag failed: %s", 4773 dwarf_errmsg(de)); 4774 return; 4775 } 4776 /* XXX: What about DW_TAG_partial_unit? */ 4777 if (tag == DW_TAG_compile_unit) 4778 break; 4779 } 4780 if (die == NULL) { 4781 warnx("could not find DW_TAG_compile_unit die"); 4782 return; 4783 } 4784 if (dwarf_attrval_unsigned(die, DW_AT_stmt_list, &offset, 4785 &de) != DW_DLV_OK) 4786 continue; 4787 4788 length = re->dw_read(d, &offset, 4); 4789 if (length == 0xffffffff) { 4790 dwarf_size = 8; 4791 length = re->dw_read(d, &offset, 8); 4792 } else 4793 dwarf_size = 4; 4794 4795 if (length > d->d_size - offset) { 4796 warnx("invalid .dwarf_line section"); 4797 continue; 4798 } 4799 4800 endoff = offset + length; 4801 version = re->dw_read(d, &offset, 2); 4802 hdrlen = re->dw_read(d, &offset, dwarf_size); 4803 minlen = re->dw_read(d, &offset, 1); 4804 defstmt = re->dw_read(d, &offset, 1); 4805 lbase = re->dw_read(d, &offset, 1); 4806 lrange = re->dw_read(d, &offset, 1); 4807 opbase = re->dw_read(d, &offset, 1); 4808 4809 printf("\n"); 4810 printf(" Length:\t\t\t%ju\n", (uintmax_t) length); 4811 printf(" DWARF version:\t\t%u\n", version); 4812 printf(" Prologue Length:\t\t%ju\n", (uintmax_t) hdrlen); 4813 printf(" Minimum Instruction Length:\t%u\n", minlen); 4814 printf(" Initial value of 'is_stmt':\t%u\n", defstmt); 4815 printf(" Line Base:\t\t\t%d\n", lbase); 4816 printf(" Line Range:\t\t\t%u\n", lrange); 4817 printf(" Opcode Base:\t\t\t%u\n", opbase); 4818 (void) dwarf_get_address_size(re->dbg, &pointer_size, &de); 4819 printf(" (Pointer size:\t\t%u)\n", pointer_size); 4820 4821 printf("\n"); 4822 printf(" Opcodes:\n"); 4823 for (i = 1; i < opbase; i++) { 4824 oplen = re->dw_read(d, &offset, 1); 4825 printf(" Opcode %d has %u args\n", i, oplen); 4826 } 4827 4828 printf("\n"); 4829 printf(" The Directory Table:\n"); 4830 p = (uint8_t *) d->d_buf + offset; 4831 while (*p != '\0') { 4832 printf(" %s\n", (char *) p); 4833 p += strlen((char *) p) + 1; 4834 } 4835 4836 p++; 4837 printf("\n"); 4838 printf(" The File Name Table:\n"); 4839 printf(" Entry\tDir\tTime\tSize\tName\n"); 4840 i = 0; 4841 while (*p != '\0') { 4842 i++; 4843 pn = (char *) p; 4844 p += strlen(pn) + 1; 4845 dirndx = _decode_uleb128(&p); 4846 mtime = _decode_uleb128(&p); 4847 fsize = _decode_uleb128(&p); 4848 printf(" %d\t%ju\t%ju\t%ju\t%s\n", i, 4849 (uintmax_t) dirndx, (uintmax_t) mtime, 4850 (uintmax_t) fsize, pn); 4851 } 4852 4853 #define RESET_REGISTERS \ 4854 do { \ 4855 address = 0; \ 4856 file = 1; \ 4857 line = 1; \ 4858 column = 0; \ 4859 is_stmt = defstmt; \ 4860 } while(0) 4861 4862 #define LINE(x) (lbase + (((x) - opbase) % lrange)) 4863 #define ADDRESS(x) ((((x) - opbase) / lrange) * minlen) 4864 4865 p++; 4866 pe = (uint8_t *) d->d_buf + endoff; 4867 printf("\n"); 4868 printf(" Line Number Statements:\n"); 4869 4870 RESET_REGISTERS; 4871 4872 while (p < pe) { 4873 4874 if (*p == 0) { 4875 /* 4876 * Extended Opcodes. 4877 */ 4878 p++; 4879 opsize = _decode_uleb128(&p); 4880 printf(" Extended opcode %u: ", *p); 4881 switch (*p) { 4882 case DW_LNE_end_sequence: 4883 p++; 4884 RESET_REGISTERS; 4885 printf("End of Sequence\n"); 4886 break; 4887 case DW_LNE_set_address: 4888 p++; 4889 address = re->dw_decode(&p, 4890 pointer_size); 4891 printf("set Address to %#jx\n", 4892 (uintmax_t) address); 4893 break; 4894 case DW_LNE_define_file: 4895 p++; 4896 pn = (char *) p; 4897 p += strlen(pn) + 1; 4898 dirndx = _decode_uleb128(&p); 4899 mtime = _decode_uleb128(&p); 4900 fsize = _decode_uleb128(&p); 4901 printf("define new file: %s\n", pn); 4902 break; 4903 default: 4904 /* Unrecognized extened opcodes. */ 4905 p += opsize; 4906 printf("unknown opcode\n"); 4907 } 4908 } else if (*p > 0 && *p < opbase) { 4909 /* 4910 * Standard Opcodes. 4911 */ 4912 switch(*p++) { 4913 case DW_LNS_copy: 4914 printf(" Copy\n"); 4915 break; 4916 case DW_LNS_advance_pc: 4917 udelta = _decode_uleb128(&p) * 4918 minlen; 4919 address += udelta; 4920 printf(" Advance PC by %ju to %#jx\n", 4921 (uintmax_t) udelta, 4922 (uintmax_t) address); 4923 break; 4924 case DW_LNS_advance_line: 4925 sdelta = _decode_sleb128(&p); 4926 line += sdelta; 4927 printf(" Advance Line by %jd to %ju\n", 4928 (intmax_t) sdelta, 4929 (uintmax_t) line); 4930 break; 4931 case DW_LNS_set_file: 4932 file = _decode_uleb128(&p); 4933 printf(" Set File to %ju\n", 4934 (uintmax_t) file); 4935 break; 4936 case DW_LNS_set_column: 4937 column = _decode_uleb128(&p); 4938 printf(" Set Column to %ju\n", 4939 (uintmax_t) column); 4940 break; 4941 case DW_LNS_negate_stmt: 4942 is_stmt = !is_stmt; 4943 printf(" Set is_stmt to %d\n", is_stmt); 4944 break; 4945 case DW_LNS_set_basic_block: 4946 printf(" Set basic block flag\n"); 4947 break; 4948 case DW_LNS_const_add_pc: 4949 address += ADDRESS(255); 4950 printf(" Advance PC by constant %ju" 4951 " to %#jx\n", 4952 (uintmax_t) ADDRESS(255), 4953 (uintmax_t) address); 4954 break; 4955 case DW_LNS_fixed_advance_pc: 4956 udelta = re->dw_decode(&p, 2); 4957 address += udelta; 4958 printf(" Advance PC by fixed value " 4959 "%ju to %#jx\n", 4960 (uintmax_t) udelta, 4961 (uintmax_t) address); 4962 break; 4963 case DW_LNS_set_prologue_end: 4964 printf(" Set prologue end flag\n"); 4965 break; 4966 case DW_LNS_set_epilogue_begin: 4967 printf(" Set epilogue begin flag\n"); 4968 break; 4969 case DW_LNS_set_isa: 4970 isa = _decode_uleb128(&p); 4971 printf(" Set isa to %ju\n", isa); 4972 break; 4973 default: 4974 /* Unrecognized extended opcodes. */ 4975 printf(" Unknown extended opcode %u\n", 4976 *(p - 1)); 4977 break; 4978 } 4979 4980 } else { 4981 /* 4982 * Special Opcodes. 4983 */ 4984 line += LINE(*p); 4985 address += ADDRESS(*p); 4986 printf(" Special opcode %u: advance Address " 4987 "by %ju to %#jx and Line by %jd to %ju\n", 4988 *p - opbase, (uintmax_t) ADDRESS(*p), 4989 (uintmax_t) address, (intmax_t) LINE(*p), 4990 (uintmax_t) line); 4991 p++; 4992 } 4993 4994 4995 } 4996 } 4997 if (ret == DW_DLV_ERROR) 4998 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de)); 4999 5000 #undef RESET_REGISTERS 5001 #undef LINE 5002 #undef ADDRESS 5003 } 5004 5005 static void 5006 dump_dwarf_line_decoded(struct readelf *re) 5007 { 5008 Dwarf_Die die; 5009 Dwarf_Line *linebuf, ln; 5010 Dwarf_Addr lineaddr; 5011 Dwarf_Signed linecount, srccount; 5012 Dwarf_Unsigned lineno, fn; 5013 Dwarf_Error de; 5014 const char *dir, *file; 5015 char **srcfiles; 5016 int i, ret; 5017 5018 printf("Decoded dump of debug contents of section .debug_line:\n\n"); 5019 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL, 5020 NULL, &de)) == DW_DLV_OK) { 5021 if (dwarf_siblingof(re->dbg, NULL, &die, &de) != DW_DLV_OK) 5022 continue; 5023 if (dwarf_attrval_string(die, DW_AT_name, &file, &de) != 5024 DW_DLV_OK) 5025 file = NULL; 5026 if (dwarf_attrval_string(die, DW_AT_comp_dir, &dir, &de) != 5027 DW_DLV_OK) 5028 dir = NULL; 5029 printf("CU: "); 5030 if (dir && file) 5031 printf("%s/", dir); 5032 if (file) 5033 printf("%s", file); 5034 putchar('\n'); 5035 printf("%-37s %11s %s\n", "Filename", "Line Number", 5036 "Starting Address"); 5037 if (dwarf_srclines(die, &linebuf, &linecount, &de) != DW_DLV_OK) 5038 continue; 5039 if (dwarf_srcfiles(die, &srcfiles, &srccount, &de) != DW_DLV_OK) 5040 continue; 5041 for (i = 0; i < linecount; i++) { 5042 ln = linebuf[i]; 5043 if (dwarf_line_srcfileno(ln, &fn, &de) != DW_DLV_OK) 5044 continue; 5045 if (dwarf_lineno(ln, &lineno, &de) != DW_DLV_OK) 5046 continue; 5047 if (dwarf_lineaddr(ln, &lineaddr, &de) != DW_DLV_OK) 5048 continue; 5049 printf("%-37s %11ju %#18jx\n", 5050 basename(srcfiles[fn - 1]), (uintmax_t) lineno, 5051 (uintmax_t) lineaddr); 5052 } 5053 putchar('\n'); 5054 } 5055 } 5056 5057 static void 5058 dump_dwarf_die(struct readelf *re, Dwarf_Die die, int level) 5059 { 5060 Dwarf_Attribute *attr_list; 5061 Dwarf_Die ret_die; 5062 Dwarf_Off dieoff, cuoff, culen, attroff; 5063 Dwarf_Unsigned ate, lang, v_udata, v_sig; 5064 Dwarf_Signed attr_count, v_sdata; 5065 Dwarf_Off v_off; 5066 Dwarf_Addr v_addr; 5067 Dwarf_Half tag, attr, form; 5068 Dwarf_Block *v_block; 5069 Dwarf_Bool v_bool, is_info; 5070 Dwarf_Sig8 v_sig8; 5071 Dwarf_Error de; 5072 Dwarf_Ptr v_expr; 5073 const char *tag_str, *attr_str, *ate_str, *lang_str; 5074 char unk_tag[32], unk_attr[32]; 5075 char *v_str; 5076 uint8_t *b, *p; 5077 int i, j, abc, ret; 5078 5079 if (dwarf_dieoffset(die, &dieoff, &de) != DW_DLV_OK) { 5080 warnx("dwarf_dieoffset failed: %s", dwarf_errmsg(de)); 5081 goto cont_search; 5082 } 5083 5084 printf(" <%d><%jx>: ", level, (uintmax_t) dieoff); 5085 5086 if (dwarf_die_CU_offset_range(die, &cuoff, &culen, &de) != DW_DLV_OK) { 5087 warnx("dwarf_die_CU_offset_range failed: %s", 5088 dwarf_errmsg(de)); 5089 cuoff = 0; 5090 } 5091 5092 abc = dwarf_die_abbrev_code(die); 5093 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 5094 warnx("dwarf_tag failed: %s", dwarf_errmsg(de)); 5095 goto cont_search; 5096 } 5097 if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) { 5098 snprintf(unk_tag, sizeof(unk_tag), "[Unknown Tag: %#x]", tag); 5099 tag_str = unk_tag; 5100 } 5101 5102 printf("Abbrev Number: %d (%s)\n", abc, tag_str); 5103 5104 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) != 5105 DW_DLV_OK) { 5106 if (ret == DW_DLV_ERROR) 5107 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de)); 5108 goto cont_search; 5109 } 5110 5111 for (i = 0; i < attr_count; i++) { 5112 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) { 5113 warnx("dwarf_whatform failed: %s", dwarf_errmsg(de)); 5114 continue; 5115 } 5116 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) { 5117 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de)); 5118 continue; 5119 } 5120 if (dwarf_get_AT_name(attr, &attr_str) != DW_DLV_OK) { 5121 snprintf(unk_attr, sizeof(unk_attr), 5122 "[Unknown AT: %#x]", attr); 5123 attr_str = unk_attr; 5124 } 5125 if (dwarf_attroffset(attr_list[i], &attroff, &de) != 5126 DW_DLV_OK) { 5127 warnx("dwarf_attroffset failed: %s", dwarf_errmsg(de)); 5128 attroff = 0; 5129 } 5130 printf(" <%jx> %-18s: ", (uintmax_t) attroff, attr_str); 5131 switch (form) { 5132 case DW_FORM_ref_addr: 5133 case DW_FORM_sec_offset: 5134 if (dwarf_global_formref(attr_list[i], &v_off, &de) != 5135 DW_DLV_OK) { 5136 warnx("dwarf_global_formref failed: %s", 5137 dwarf_errmsg(de)); 5138 continue; 5139 } 5140 if (form == DW_FORM_ref_addr) 5141 printf("<0x%jx>", (uintmax_t) v_off); 5142 else 5143 printf("0x%jx", (uintmax_t) v_off); 5144 break; 5145 5146 case DW_FORM_ref1: 5147 case DW_FORM_ref2: 5148 case DW_FORM_ref4: 5149 case DW_FORM_ref8: 5150 case DW_FORM_ref_udata: 5151 if (dwarf_formref(attr_list[i], &v_off, &de) != 5152 DW_DLV_OK) { 5153 warnx("dwarf_formref failed: %s", 5154 dwarf_errmsg(de)); 5155 continue; 5156 } 5157 v_off += cuoff; 5158 printf("<0x%jx>", (uintmax_t) v_off); 5159 break; 5160 5161 case DW_FORM_addr: 5162 if (dwarf_formaddr(attr_list[i], &v_addr, &de) != 5163 DW_DLV_OK) { 5164 warnx("dwarf_formaddr failed: %s", 5165 dwarf_errmsg(de)); 5166 continue; 5167 } 5168 printf("%#jx", (uintmax_t) v_addr); 5169 break; 5170 5171 case DW_FORM_data1: 5172 case DW_FORM_data2: 5173 case DW_FORM_data4: 5174 case DW_FORM_data8: 5175 case DW_FORM_udata: 5176 if (dwarf_formudata(attr_list[i], &v_udata, &de) != 5177 DW_DLV_OK) { 5178 warnx("dwarf_formudata failed: %s", 5179 dwarf_errmsg(de)); 5180 continue; 5181 } 5182 if (attr == DW_AT_high_pc) 5183 printf("0x%jx", (uintmax_t) v_udata); 5184 else 5185 printf("%ju", (uintmax_t) v_udata); 5186 break; 5187 5188 case DW_FORM_sdata: 5189 if (dwarf_formsdata(attr_list[i], &v_sdata, &de) != 5190 DW_DLV_OK) { 5191 warnx("dwarf_formudata failed: %s", 5192 dwarf_errmsg(de)); 5193 continue; 5194 } 5195 printf("%jd", (intmax_t) v_sdata); 5196 break; 5197 5198 case DW_FORM_flag: 5199 if (dwarf_formflag(attr_list[i], &v_bool, &de) != 5200 DW_DLV_OK) { 5201 warnx("dwarf_formflag failed: %s", 5202 dwarf_errmsg(de)); 5203 continue; 5204 } 5205 printf("%jd", (intmax_t) v_bool); 5206 break; 5207 5208 case DW_FORM_flag_present: 5209 putchar('1'); 5210 break; 5211 5212 case DW_FORM_string: 5213 case DW_FORM_strp: 5214 if (dwarf_formstring(attr_list[i], &v_str, &de) != 5215 DW_DLV_OK) { 5216 warnx("dwarf_formstring failed: %s", 5217 dwarf_errmsg(de)); 5218 continue; 5219 } 5220 if (form == DW_FORM_string) 5221 printf("%s", v_str); 5222 else 5223 printf("(indirect string) %s", v_str); 5224 break; 5225 5226 case DW_FORM_block: 5227 case DW_FORM_block1: 5228 case DW_FORM_block2: 5229 case DW_FORM_block4: 5230 if (dwarf_formblock(attr_list[i], &v_block, &de) != 5231 DW_DLV_OK) { 5232 warnx("dwarf_formblock failed: %s", 5233 dwarf_errmsg(de)); 5234 continue; 5235 } 5236 printf("%ju byte block:", (uintmax_t) v_block->bl_len); 5237 b = v_block->bl_data; 5238 for (j = 0; (Dwarf_Unsigned) j < v_block->bl_len; j++) 5239 printf(" %x", b[j]); 5240 printf("\t("); 5241 dump_dwarf_block(re, v_block->bl_data, v_block->bl_len); 5242 putchar(')'); 5243 break; 5244 5245 case DW_FORM_exprloc: 5246 if (dwarf_formexprloc(attr_list[i], &v_udata, &v_expr, 5247 &de) != DW_DLV_OK) { 5248 warnx("dwarf_formexprloc failed: %s", 5249 dwarf_errmsg(de)); 5250 continue; 5251 } 5252 printf("%ju byte block:", (uintmax_t) v_udata); 5253 b = v_expr; 5254 for (j = 0; (Dwarf_Unsigned) j < v_udata; j++) 5255 printf(" %x", b[j]); 5256 printf("\t("); 5257 dump_dwarf_block(re, v_expr, v_udata); 5258 putchar(')'); 5259 break; 5260 5261 case DW_FORM_ref_sig8: 5262 if (dwarf_formsig8(attr_list[i], &v_sig8, &de) != 5263 DW_DLV_OK) { 5264 warnx("dwarf_formsig8 failed: %s", 5265 dwarf_errmsg(de)); 5266 continue; 5267 } 5268 p = (uint8_t *)(uintptr_t) &v_sig8.signature[0]; 5269 v_sig = re->dw_decode(&p, 8); 5270 printf("signature: 0x%jx", (uintmax_t) v_sig); 5271 } 5272 switch (attr) { 5273 case DW_AT_encoding: 5274 if (dwarf_attrval_unsigned(die, attr, &ate, &de) != 5275 DW_DLV_OK) 5276 break; 5277 if (dwarf_get_ATE_name(ate, &ate_str) != DW_DLV_OK) 5278 ate_str = "DW_ATE_UNKNOWN"; 5279 printf("\t(%s)", &ate_str[strlen("DW_ATE_")]); 5280 break; 5281 5282 case DW_AT_language: 5283 if (dwarf_attrval_unsigned(die, attr, &lang, &de) != 5284 DW_DLV_OK) 5285 break; 5286 if (dwarf_get_LANG_name(lang, &lang_str) != DW_DLV_OK) 5287 break; 5288 printf("\t(%s)", &lang_str[strlen("DW_LANG_")]); 5289 break; 5290 5291 case DW_AT_location: 5292 case DW_AT_string_length: 5293 case DW_AT_return_addr: 5294 case DW_AT_data_member_location: 5295 case DW_AT_frame_base: 5296 case DW_AT_segment: 5297 case DW_AT_static_link: 5298 case DW_AT_use_location: 5299 case DW_AT_vtable_elem_location: 5300 switch (form) { 5301 case DW_FORM_data4: 5302 case DW_FORM_data8: 5303 case DW_FORM_sec_offset: 5304 printf("\t(location list)"); 5305 break; 5306 default: 5307 break; 5308 } 5309 5310 default: 5311 break; 5312 } 5313 putchar('\n'); 5314 } 5315 5316 5317 cont_search: 5318 /* Search children. */ 5319 ret = dwarf_child(die, &ret_die, &de); 5320 if (ret == DW_DLV_ERROR) 5321 warnx("dwarf_child: %s", dwarf_errmsg(de)); 5322 else if (ret == DW_DLV_OK) 5323 dump_dwarf_die(re, ret_die, level + 1); 5324 5325 /* Search sibling. */ 5326 is_info = dwarf_get_die_infotypes_flag(die); 5327 ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de); 5328 if (ret == DW_DLV_ERROR) 5329 warnx("dwarf_siblingof: %s", dwarf_errmsg(de)); 5330 else if (ret == DW_DLV_OK) 5331 dump_dwarf_die(re, ret_die, level); 5332 5333 dwarf_dealloc(re->dbg, die, DW_DLA_DIE); 5334 } 5335 5336 static void 5337 set_cu_context(struct readelf *re, Dwarf_Half psize, Dwarf_Half osize, 5338 Dwarf_Half ver) 5339 { 5340 5341 re->cu_psize = psize; 5342 re->cu_osize = osize; 5343 re->cu_ver = ver; 5344 } 5345 5346 static void 5347 dump_dwarf_info(struct readelf *re, Dwarf_Bool is_info) 5348 { 5349 struct section *s; 5350 Dwarf_Die die; 5351 Dwarf_Error de; 5352 Dwarf_Half tag, version, pointer_size, off_size; 5353 Dwarf_Off cu_offset, cu_length; 5354 Dwarf_Off aboff; 5355 Dwarf_Unsigned typeoff; 5356 Dwarf_Sig8 sig8; 5357 Dwarf_Unsigned sig; 5358 uint8_t *p; 5359 const char *sn; 5360 int i, ret; 5361 5362 sn = is_info ? ".debug_info" : ".debug_types"; 5363 5364 s = NULL; 5365 for (i = 0; (size_t) i < re->shnum; i++) { 5366 s = &re->sl[i]; 5367 if (s->name != NULL && !strcmp(s->name, sn)) 5368 break; 5369 } 5370 if ((size_t) i >= re->shnum) 5371 return; 5372 5373 do { 5374 printf("\nDump of debug contents of section %s:\n", sn); 5375 5376 while ((ret = dwarf_next_cu_header_c(re->dbg, is_info, NULL, 5377 &version, &aboff, &pointer_size, &off_size, NULL, &sig8, 5378 &typeoff, NULL, &de)) == DW_DLV_OK) { 5379 set_cu_context(re, pointer_size, off_size, version); 5380 die = NULL; 5381 while (dwarf_siblingof_b(re->dbg, die, &die, is_info, 5382 &de) == DW_DLV_OK) { 5383 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 5384 warnx("dwarf_tag failed: %s", 5385 dwarf_errmsg(de)); 5386 continue; 5387 } 5388 /* XXX: What about DW_TAG_partial_unit? */ 5389 if ((is_info && tag == DW_TAG_compile_unit) || 5390 (!is_info && tag == DW_TAG_type_unit)) 5391 break; 5392 } 5393 if (die == NULL && is_info) { 5394 warnx("could not find DW_TAG_compile_unit " 5395 "die"); 5396 continue; 5397 } else if (die == NULL && !is_info) { 5398 warnx("could not find DW_TAG_type_unit die"); 5399 continue; 5400 } 5401 5402 if (dwarf_die_CU_offset_range(die, &cu_offset, 5403 &cu_length, &de) != DW_DLV_OK) { 5404 warnx("dwarf_die_CU_offset failed: %s", 5405 dwarf_errmsg(de)); 5406 continue; 5407 } 5408 5409 cu_length -= off_size == 4 ? 4 : 12; 5410 5411 sig = 0; 5412 if (!is_info) { 5413 p = (uint8_t *)(uintptr_t) &sig8.signature[0]; 5414 sig = re->dw_decode(&p, 8); 5415 } 5416 5417 printf("\n Type Unit @ offset 0x%jx:\n", 5418 (uintmax_t) cu_offset); 5419 printf(" Length:\t\t%#jx (%d-bit)\n", 5420 (uintmax_t) cu_length, off_size == 4 ? 32 : 64); 5421 printf(" Version:\t\t%u\n", version); 5422 printf(" Abbrev Offset:\t0x%jx\n", 5423 (uintmax_t) aboff); 5424 printf(" Pointer Size:\t%u\n", pointer_size); 5425 if (!is_info) { 5426 printf(" Signature:\t\t0x%016jx\n", 5427 (uintmax_t) sig); 5428 printf(" Type Offset:\t0x%jx\n", 5429 (uintmax_t) typeoff); 5430 } 5431 5432 dump_dwarf_die(re, die, 0); 5433 } 5434 if (ret == DW_DLV_ERROR) 5435 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de)); 5436 if (is_info) 5437 break; 5438 } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK); 5439 } 5440 5441 static void 5442 dump_dwarf_abbrev(struct readelf *re) 5443 { 5444 Dwarf_Abbrev ab; 5445 Dwarf_Off aboff, atoff; 5446 Dwarf_Unsigned length, attr_count; 5447 Dwarf_Signed flag, form; 5448 Dwarf_Half tag, attr; 5449 Dwarf_Error de; 5450 const char *tag_str, *attr_str, *form_str; 5451 char unk_tag[32], unk_attr[32], unk_form[32]; 5452 int i, j, ret; 5453 5454 printf("\nContents of section .debug_abbrev:\n\n"); 5455 5456 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, &aboff, 5457 NULL, NULL, &de)) == DW_DLV_OK) { 5458 printf(" Number TAG\n"); 5459 i = 0; 5460 while ((ret = dwarf_get_abbrev(re->dbg, aboff, &ab, &length, 5461 &attr_count, &de)) == DW_DLV_OK) { 5462 if (length == 1) { 5463 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV); 5464 break; 5465 } 5466 aboff += length; 5467 printf("%4d", ++i); 5468 if (dwarf_get_abbrev_tag(ab, &tag, &de) != DW_DLV_OK) { 5469 warnx("dwarf_get_abbrev_tag failed: %s", 5470 dwarf_errmsg(de)); 5471 goto next_abbrev; 5472 } 5473 if (dwarf_get_TAG_name(tag, &tag_str) != DW_DLV_OK) { 5474 snprintf(unk_tag, sizeof(unk_tag), 5475 "[Unknown Tag: %#x]", tag); 5476 tag_str = unk_tag; 5477 } 5478 if (dwarf_get_abbrev_children_flag(ab, &flag, &de) != 5479 DW_DLV_OK) { 5480 warnx("dwarf_get_abbrev_children_flag failed:" 5481 " %s", dwarf_errmsg(de)); 5482 goto next_abbrev; 5483 } 5484 printf(" %s %s\n", tag_str, 5485 flag ? "[has children]" : "[no children]"); 5486 for (j = 0; (Dwarf_Unsigned) j < attr_count; j++) { 5487 if (dwarf_get_abbrev_entry(ab, (Dwarf_Signed) j, 5488 &attr, &form, &atoff, &de) != DW_DLV_OK) { 5489 warnx("dwarf_get_abbrev_entry failed:" 5490 " %s", dwarf_errmsg(de)); 5491 continue; 5492 } 5493 if (dwarf_get_AT_name(attr, &attr_str) != 5494 DW_DLV_OK) { 5495 snprintf(unk_attr, sizeof(unk_attr), 5496 "[Unknown AT: %#x]", attr); 5497 attr_str = unk_attr; 5498 } 5499 if (dwarf_get_FORM_name(form, &form_str) != 5500 DW_DLV_OK) { 5501 snprintf(unk_form, sizeof(unk_form), 5502 "[Unknown Form: %#x]", 5503 (Dwarf_Half) form); 5504 form_str = unk_form; 5505 } 5506 printf(" %-18s %s\n", attr_str, form_str); 5507 } 5508 next_abbrev: 5509 dwarf_dealloc(re->dbg, ab, DW_DLA_ABBREV); 5510 } 5511 if (ret != DW_DLV_OK) 5512 warnx("dwarf_get_abbrev: %s", dwarf_errmsg(de)); 5513 } 5514 if (ret == DW_DLV_ERROR) 5515 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de)); 5516 } 5517 5518 static void 5519 dump_dwarf_pubnames(struct readelf *re) 5520 { 5521 struct section *s; 5522 Dwarf_Off die_off; 5523 Dwarf_Unsigned offset, length, nt_cu_offset, nt_cu_length; 5524 Dwarf_Signed cnt; 5525 Dwarf_Global *globs; 5526 Dwarf_Half nt_version; 5527 Dwarf_Error de; 5528 Elf_Data *d; 5529 char *glob_name; 5530 int i, dwarf_size, elferr; 5531 5532 printf("\nContents of the .debug_pubnames section:\n"); 5533 5534 s = NULL; 5535 for (i = 0; (size_t) i < re->shnum; i++) { 5536 s = &re->sl[i]; 5537 if (s->name != NULL && !strcmp(s->name, ".debug_pubnames")) 5538 break; 5539 } 5540 if ((size_t) i >= re->shnum) 5541 return; 5542 5543 (void) elf_errno(); 5544 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 5545 elferr = elf_errno(); 5546 if (elferr != 0) 5547 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 5548 return; 5549 } 5550 if (d->d_size <= 0) 5551 return; 5552 5553 /* Read in .debug_pubnames section table header. */ 5554 offset = 0; 5555 length = re->dw_read(d, &offset, 4); 5556 if (length == 0xffffffff) { 5557 dwarf_size = 8; 5558 length = re->dw_read(d, &offset, 8); 5559 } else 5560 dwarf_size = 4; 5561 5562 if (length > d->d_size - offset) { 5563 warnx("invalid .dwarf_pubnames section"); 5564 return; 5565 } 5566 5567 nt_version = re->dw_read(d, &offset, 2); 5568 nt_cu_offset = re->dw_read(d, &offset, dwarf_size); 5569 nt_cu_length = re->dw_read(d, &offset, dwarf_size); 5570 printf(" Length:\t\t\t\t%ju\n", (uintmax_t) length); 5571 printf(" Version:\t\t\t\t%u\n", nt_version); 5572 printf(" Offset into .debug_info section:\t%ju\n", 5573 (uintmax_t) nt_cu_offset); 5574 printf(" Size of area in .debug_info section:\t%ju\n", 5575 (uintmax_t) nt_cu_length); 5576 5577 if (dwarf_get_globals(re->dbg, &globs, &cnt, &de) != DW_DLV_OK) { 5578 warnx("dwarf_get_globals failed: %s", dwarf_errmsg(de)); 5579 return; 5580 } 5581 5582 printf("\n Offset Name\n"); 5583 for (i = 0; i < cnt; i++) { 5584 if (dwarf_globname(globs[i], &glob_name, &de) != DW_DLV_OK) { 5585 warnx("dwarf_globname failed: %s", dwarf_errmsg(de)); 5586 continue; 5587 } 5588 if (dwarf_global_die_offset(globs[i], &die_off, &de) != 5589 DW_DLV_OK) { 5590 warnx("dwarf_global_die_offset failed: %s", 5591 dwarf_errmsg(de)); 5592 continue; 5593 } 5594 printf(" %-11ju %s\n", (uintmax_t) die_off, glob_name); 5595 } 5596 } 5597 5598 static void 5599 dump_dwarf_aranges(struct readelf *re) 5600 { 5601 struct section *s; 5602 Dwarf_Arange *aranges; 5603 Dwarf_Addr start; 5604 Dwarf_Unsigned offset, length, as_cu_offset; 5605 Dwarf_Off die_off; 5606 Dwarf_Signed cnt; 5607 Dwarf_Half as_version, as_addrsz, as_segsz; 5608 Dwarf_Error de; 5609 Elf_Data *d; 5610 int i, dwarf_size, elferr; 5611 5612 printf("\nContents of section .debug_aranges:\n"); 5613 5614 s = NULL; 5615 for (i = 0; (size_t) i < re->shnum; i++) { 5616 s = &re->sl[i]; 5617 if (s->name != NULL && !strcmp(s->name, ".debug_aranges")) 5618 break; 5619 } 5620 if ((size_t) i >= re->shnum) 5621 return; 5622 5623 (void) elf_errno(); 5624 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 5625 elferr = elf_errno(); 5626 if (elferr != 0) 5627 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 5628 return; 5629 } 5630 if (d->d_size <= 0) 5631 return; 5632 5633 /* Read in the .debug_aranges section table header. */ 5634 offset = 0; 5635 length = re->dw_read(d, &offset, 4); 5636 if (length == 0xffffffff) { 5637 dwarf_size = 8; 5638 length = re->dw_read(d, &offset, 8); 5639 } else 5640 dwarf_size = 4; 5641 5642 if (length > d->d_size - offset) { 5643 warnx("invalid .dwarf_aranges section"); 5644 return; 5645 } 5646 5647 as_version = re->dw_read(d, &offset, 2); 5648 as_cu_offset = re->dw_read(d, &offset, dwarf_size); 5649 as_addrsz = re->dw_read(d, &offset, 1); 5650 as_segsz = re->dw_read(d, &offset, 1); 5651 5652 printf(" Length:\t\t\t%ju\n", (uintmax_t) length); 5653 printf(" Version:\t\t\t%u\n", as_version); 5654 printf(" Offset into .debug_info:\t%ju\n", (uintmax_t) as_cu_offset); 5655 printf(" Pointer Size:\t\t\t%u\n", as_addrsz); 5656 printf(" Segment Size:\t\t\t%u\n", as_segsz); 5657 5658 if (dwarf_get_aranges(re->dbg, &aranges, &cnt, &de) != DW_DLV_OK) { 5659 warnx("dwarf_get_aranges failed: %s", dwarf_errmsg(de)); 5660 return; 5661 } 5662 5663 printf("\n Address Length\n"); 5664 for (i = 0; i < cnt; i++) { 5665 if (dwarf_get_arange_info(aranges[i], &start, &length, 5666 &die_off, &de) != DW_DLV_OK) { 5667 warnx("dwarf_get_arange_info failed: %s", 5668 dwarf_errmsg(de)); 5669 continue; 5670 } 5671 printf(" %08jx %ju\n", (uintmax_t) start, 5672 (uintmax_t) length); 5673 } 5674 } 5675 5676 static void 5677 dump_dwarf_ranges_foreach(struct readelf *re, Dwarf_Die die, Dwarf_Addr base) 5678 { 5679 Dwarf_Attribute *attr_list; 5680 Dwarf_Ranges *ranges; 5681 Dwarf_Die ret_die; 5682 Dwarf_Error de; 5683 Dwarf_Addr base0; 5684 Dwarf_Half attr; 5685 Dwarf_Signed attr_count, cnt; 5686 Dwarf_Unsigned off, bytecnt; 5687 int i, j, ret; 5688 5689 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) != 5690 DW_DLV_OK) { 5691 if (ret == DW_DLV_ERROR) 5692 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de)); 5693 goto cont_search; 5694 } 5695 5696 for (i = 0; i < attr_count; i++) { 5697 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) { 5698 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de)); 5699 continue; 5700 } 5701 if (attr != DW_AT_ranges) 5702 continue; 5703 if (dwarf_formudata(attr_list[i], &off, &de) != DW_DLV_OK) { 5704 warnx("dwarf_formudata failed: %s", dwarf_errmsg(de)); 5705 continue; 5706 } 5707 if (dwarf_get_ranges(re->dbg, (Dwarf_Off) off, &ranges, &cnt, 5708 &bytecnt, &de) != DW_DLV_OK) 5709 continue; 5710 base0 = base; 5711 for (j = 0; j < cnt; j++) { 5712 printf(" %08jx ", (uintmax_t) off); 5713 if (ranges[j].dwr_type == DW_RANGES_END) { 5714 printf("%s\n", "<End of list>"); 5715 continue; 5716 } else if (ranges[j].dwr_type == 5717 DW_RANGES_ADDRESS_SELECTION) { 5718 base0 = ranges[j].dwr_addr2; 5719 continue; 5720 } 5721 if (re->ec == ELFCLASS32) 5722 printf("%08jx %08jx\n", 5723 ranges[j].dwr_addr1 + base0, 5724 ranges[j].dwr_addr2 + base0); 5725 else 5726 printf("%016jx %016jx\n", 5727 ranges[j].dwr_addr1 + base0, 5728 ranges[j].dwr_addr2 + base0); 5729 } 5730 } 5731 5732 cont_search: 5733 /* Search children. */ 5734 ret = dwarf_child(die, &ret_die, &de); 5735 if (ret == DW_DLV_ERROR) 5736 warnx("dwarf_child: %s", dwarf_errmsg(de)); 5737 else if (ret == DW_DLV_OK) 5738 dump_dwarf_ranges_foreach(re, ret_die, base); 5739 5740 /* Search sibling. */ 5741 ret = dwarf_siblingof(re->dbg, die, &ret_die, &de); 5742 if (ret == DW_DLV_ERROR) 5743 warnx("dwarf_siblingof: %s", dwarf_errmsg(de)); 5744 else if (ret == DW_DLV_OK) 5745 dump_dwarf_ranges_foreach(re, ret_die, base); 5746 } 5747 5748 static void 5749 dump_dwarf_ranges(struct readelf *re) 5750 { 5751 Dwarf_Ranges *ranges; 5752 Dwarf_Die die; 5753 Dwarf_Signed cnt; 5754 Dwarf_Unsigned bytecnt; 5755 Dwarf_Half tag; 5756 Dwarf_Error de; 5757 Dwarf_Unsigned lowpc; 5758 int ret; 5759 5760 if (dwarf_get_ranges(re->dbg, 0, &ranges, &cnt, &bytecnt, &de) != 5761 DW_DLV_OK) 5762 return; 5763 5764 printf("Contents of the .debug_ranges section:\n\n"); 5765 if (re->ec == ELFCLASS32) 5766 printf(" %-8s %-8s %s\n", "Offset", "Begin", "End"); 5767 else 5768 printf(" %-8s %-16s %s\n", "Offset", "Begin", "End"); 5769 5770 while ((ret = dwarf_next_cu_header(re->dbg, NULL, NULL, NULL, NULL, 5771 NULL, &de)) == DW_DLV_OK) { 5772 die = NULL; 5773 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK) 5774 continue; 5775 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 5776 warnx("dwarf_tag failed: %s", dwarf_errmsg(de)); 5777 continue; 5778 } 5779 /* XXX: What about DW_TAG_partial_unit? */ 5780 lowpc = 0; 5781 if (tag == DW_TAG_compile_unit) { 5782 if (dwarf_attrval_unsigned(die, DW_AT_low_pc, &lowpc, 5783 &de) != DW_DLV_OK) 5784 lowpc = 0; 5785 } 5786 5787 dump_dwarf_ranges_foreach(re, die, (Dwarf_Addr) lowpc); 5788 } 5789 putchar('\n'); 5790 } 5791 5792 static void 5793 dump_dwarf_macinfo(struct readelf *re) 5794 { 5795 Dwarf_Unsigned offset; 5796 Dwarf_Signed cnt; 5797 Dwarf_Macro_Details *md; 5798 Dwarf_Error de; 5799 const char *mi_str; 5800 char unk_mi[32]; 5801 int i; 5802 5803 #define _MAX_MACINFO_ENTRY 65535 5804 5805 printf("\nContents of section .debug_macinfo:\n\n"); 5806 5807 offset = 0; 5808 while (dwarf_get_macro_details(re->dbg, offset, _MAX_MACINFO_ENTRY, 5809 &cnt, &md, &de) == DW_DLV_OK) { 5810 for (i = 0; i < cnt; i++) { 5811 offset = md[i].dmd_offset + 1; 5812 if (md[i].dmd_type == 0) 5813 break; 5814 if (dwarf_get_MACINFO_name(md[i].dmd_type, &mi_str) != 5815 DW_DLV_OK) { 5816 snprintf(unk_mi, sizeof(unk_mi), 5817 "[Unknown MACINFO: %#x]", md[i].dmd_type); 5818 mi_str = unk_mi; 5819 } 5820 printf(" %s", mi_str); 5821 switch (md[i].dmd_type) { 5822 case DW_MACINFO_define: 5823 case DW_MACINFO_undef: 5824 printf(" - lineno : %jd macro : %s\n", 5825 (intmax_t) md[i].dmd_lineno, 5826 md[i].dmd_macro); 5827 break; 5828 case DW_MACINFO_start_file: 5829 printf(" - lineno : %jd filenum : %jd\n", 5830 (intmax_t) md[i].dmd_lineno, 5831 (intmax_t) md[i].dmd_fileindex); 5832 break; 5833 default: 5834 putchar('\n'); 5835 break; 5836 } 5837 } 5838 } 5839 5840 #undef _MAX_MACINFO_ENTRY 5841 } 5842 5843 static void 5844 dump_dwarf_frame_inst(struct readelf *re, Dwarf_Cie cie, uint8_t *insts, 5845 Dwarf_Unsigned len, Dwarf_Unsigned caf, Dwarf_Signed daf, Dwarf_Addr pc, 5846 Dwarf_Debug dbg) 5847 { 5848 Dwarf_Frame_Op *oplist; 5849 Dwarf_Signed opcnt, delta; 5850 Dwarf_Small op; 5851 Dwarf_Error de; 5852 const char *op_str; 5853 char unk_op[32]; 5854 int i; 5855 5856 if (dwarf_expand_frame_instructions(cie, insts, len, &oplist, 5857 &opcnt, &de) != DW_DLV_OK) { 5858 warnx("dwarf_expand_frame_instructions failed: %s", 5859 dwarf_errmsg(de)); 5860 return; 5861 } 5862 5863 for (i = 0; i < opcnt; i++) { 5864 if (oplist[i].fp_base_op != 0) 5865 op = oplist[i].fp_base_op << 6; 5866 else 5867 op = oplist[i].fp_extended_op; 5868 if (dwarf_get_CFA_name(op, &op_str) != DW_DLV_OK) { 5869 snprintf(unk_op, sizeof(unk_op), "[Unknown CFA: %#x]", 5870 op); 5871 op_str = unk_op; 5872 } 5873 printf(" %s", op_str); 5874 switch (op) { 5875 case DW_CFA_advance_loc: 5876 delta = oplist[i].fp_offset * caf; 5877 pc += delta; 5878 printf(": %ju to %08jx", (uintmax_t) delta, 5879 (uintmax_t) pc); 5880 break; 5881 case DW_CFA_offset: 5882 case DW_CFA_offset_extended: 5883 case DW_CFA_offset_extended_sf: 5884 delta = oplist[i].fp_offset * daf; 5885 printf(": r%u (%s) at cfa%+jd", oplist[i].fp_register, 5886 dwarf_regname(re, oplist[i].fp_register), 5887 (intmax_t) delta); 5888 break; 5889 case DW_CFA_restore: 5890 printf(": r%u (%s)", oplist[i].fp_register, 5891 dwarf_regname(re, oplist[i].fp_register)); 5892 break; 5893 case DW_CFA_set_loc: 5894 pc = oplist[i].fp_offset; 5895 printf(": to %08jx", (uintmax_t) pc); 5896 break; 5897 case DW_CFA_advance_loc1: 5898 case DW_CFA_advance_loc2: 5899 case DW_CFA_advance_loc4: 5900 pc += oplist[i].fp_offset; 5901 printf(": %jd to %08jx", (intmax_t) oplist[i].fp_offset, 5902 (uintmax_t) pc); 5903 break; 5904 case DW_CFA_def_cfa: 5905 printf(": r%u (%s) ofs %ju", oplist[i].fp_register, 5906 dwarf_regname(re, oplist[i].fp_register), 5907 (uintmax_t) oplist[i].fp_offset); 5908 break; 5909 case DW_CFA_def_cfa_sf: 5910 printf(": r%u (%s) ofs %jd", oplist[i].fp_register, 5911 dwarf_regname(re, oplist[i].fp_register), 5912 (intmax_t) (oplist[i].fp_offset * daf)); 5913 break; 5914 case DW_CFA_def_cfa_register: 5915 printf(": r%u (%s)", oplist[i].fp_register, 5916 dwarf_regname(re, oplist[i].fp_register)); 5917 break; 5918 case DW_CFA_def_cfa_offset: 5919 printf(": %ju", (uintmax_t) oplist[i].fp_offset); 5920 break; 5921 case DW_CFA_def_cfa_offset_sf: 5922 printf(": %jd", (intmax_t) (oplist[i].fp_offset * daf)); 5923 break; 5924 default: 5925 break; 5926 } 5927 putchar('\n'); 5928 } 5929 5930 dwarf_dealloc(dbg, oplist, DW_DLA_FRAME_BLOCK); 5931 } 5932 5933 static char * 5934 get_regoff_str(struct readelf *re, Dwarf_Half reg, Dwarf_Addr off) 5935 { 5936 static char rs[16]; 5937 5938 if (reg == DW_FRAME_UNDEFINED_VAL || reg == DW_FRAME_REG_INITIAL_VALUE) 5939 snprintf(rs, sizeof(rs), "%c", 'u'); 5940 else if (reg == DW_FRAME_CFA_COL) 5941 snprintf(rs, sizeof(rs), "c%+jd", (intmax_t) off); 5942 else 5943 snprintf(rs, sizeof(rs), "%s%+jd", dwarf_regname(re, reg), 5944 (intmax_t) off); 5945 5946 return (rs); 5947 } 5948 5949 static int 5950 dump_dwarf_frame_regtable(struct readelf *re, Dwarf_Fde fde, Dwarf_Addr pc, 5951 Dwarf_Unsigned func_len, Dwarf_Half cie_ra) 5952 { 5953 Dwarf_Regtable rt; 5954 Dwarf_Addr row_pc, end_pc, pre_pc, cur_pc; 5955 Dwarf_Error de; 5956 char *vec; 5957 int i; 5958 5959 #define BIT_SET(v, n) (v[(n)>>3] |= 1U << ((n) & 7)) 5960 #define BIT_CLR(v, n) (v[(n)>>3] &= ~(1U << ((n) & 7))) 5961 #define BIT_ISSET(v, n) (v[(n)>>3] & (1U << ((n) & 7))) 5962 #define RT(x) rt.rules[(x)] 5963 5964 vec = calloc((DW_REG_TABLE_SIZE + 7) / 8, 1); 5965 if (vec == NULL) 5966 err(EXIT_FAILURE, "calloc failed"); 5967 5968 pre_pc = ~((Dwarf_Addr) 0); 5969 cur_pc = pc; 5970 end_pc = pc + func_len; 5971 for (; cur_pc < end_pc; cur_pc++) { 5972 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc, 5973 &de) != DW_DLV_OK) { 5974 warnx("dwarf_get_fde_info_for_all_regs failed: %s\n", 5975 dwarf_errmsg(de)); 5976 return (-1); 5977 } 5978 if (row_pc == pre_pc) 5979 continue; 5980 pre_pc = row_pc; 5981 for (i = 1; i < DW_REG_TABLE_SIZE; i++) { 5982 if (rt.rules[i].dw_regnum != DW_FRAME_REG_INITIAL_VALUE) 5983 BIT_SET(vec, i); 5984 } 5985 } 5986 5987 printf(" LOC CFA "); 5988 for (i = 1; i < DW_REG_TABLE_SIZE; i++) { 5989 if (BIT_ISSET(vec, i)) { 5990 if ((Dwarf_Half) i == cie_ra) 5991 printf("ra "); 5992 else 5993 printf("%-5s", 5994 dwarf_regname(re, (unsigned int) i)); 5995 } 5996 } 5997 putchar('\n'); 5998 5999 pre_pc = ~((Dwarf_Addr) 0); 6000 cur_pc = pc; 6001 end_pc = pc + func_len; 6002 for (; cur_pc < end_pc; cur_pc++) { 6003 if (dwarf_get_fde_info_for_all_regs(fde, cur_pc, &rt, &row_pc, 6004 &de) != DW_DLV_OK) { 6005 warnx("dwarf_get_fde_info_for_all_regs failed: %s\n", 6006 dwarf_errmsg(de)); 6007 return (-1); 6008 } 6009 if (row_pc == pre_pc) 6010 continue; 6011 pre_pc = row_pc; 6012 printf("%08jx ", (uintmax_t) row_pc); 6013 printf("%-8s ", get_regoff_str(re, RT(0).dw_regnum, 6014 RT(0).dw_offset)); 6015 for (i = 1; i < DW_REG_TABLE_SIZE; i++) { 6016 if (BIT_ISSET(vec, i)) { 6017 printf("%-5s", get_regoff_str(re, 6018 RT(i).dw_regnum, RT(i).dw_offset)); 6019 } 6020 } 6021 putchar('\n'); 6022 } 6023 6024 free(vec); 6025 6026 return (0); 6027 6028 #undef BIT_SET 6029 #undef BIT_CLR 6030 #undef BIT_ISSET 6031 #undef RT 6032 } 6033 6034 static void 6035 dump_dwarf_frame_section(struct readelf *re, struct section *s, int alt) 6036 { 6037 Dwarf_Cie *cie_list, cie, pre_cie; 6038 Dwarf_Fde *fde_list, fde; 6039 Dwarf_Off cie_offset, fde_offset; 6040 Dwarf_Unsigned cie_length, fde_instlen; 6041 Dwarf_Unsigned cie_caf, cie_daf, cie_instlen, func_len, fde_length; 6042 Dwarf_Signed cie_count, fde_count, cie_index; 6043 Dwarf_Addr low_pc; 6044 Dwarf_Half cie_ra; 6045 Dwarf_Small cie_version; 6046 Dwarf_Ptr fde_addr, fde_inst, cie_inst; 6047 char *cie_aug, c; 6048 int i, eh_frame; 6049 Dwarf_Error de; 6050 6051 printf("\nThe section %s contains:\n\n", s->name); 6052 6053 if (!strcmp(s->name, ".debug_frame")) { 6054 eh_frame = 0; 6055 if (dwarf_get_fde_list(re->dbg, &cie_list, &cie_count, 6056 &fde_list, &fde_count, &de) != DW_DLV_OK) { 6057 warnx("dwarf_get_fde_list failed: %s", 6058 dwarf_errmsg(de)); 6059 return; 6060 } 6061 } else if (!strcmp(s->name, ".eh_frame")) { 6062 eh_frame = 1; 6063 if (dwarf_get_fde_list_eh(re->dbg, &cie_list, &cie_count, 6064 &fde_list, &fde_count, &de) != DW_DLV_OK) { 6065 warnx("dwarf_get_fde_list_eh failed: %s", 6066 dwarf_errmsg(de)); 6067 return; 6068 } 6069 } else 6070 return; 6071 6072 pre_cie = NULL; 6073 for (i = 0; i < fde_count; i++) { 6074 if (dwarf_get_fde_n(fde_list, i, &fde, &de) != DW_DLV_OK) { 6075 warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de)); 6076 continue; 6077 } 6078 if (dwarf_get_cie_of_fde(fde, &cie, &de) != DW_DLV_OK) { 6079 warnx("dwarf_get_fde_n failed: %s", dwarf_errmsg(de)); 6080 continue; 6081 } 6082 if (dwarf_get_fde_range(fde, &low_pc, &func_len, &fde_addr, 6083 &fde_length, &cie_offset, &cie_index, &fde_offset, 6084 &de) != DW_DLV_OK) { 6085 warnx("dwarf_get_fde_range failed: %s", 6086 dwarf_errmsg(de)); 6087 continue; 6088 } 6089 if (dwarf_get_fde_instr_bytes(fde, &fde_inst, &fde_instlen, 6090 &de) != DW_DLV_OK) { 6091 warnx("dwarf_get_fde_instr_bytes failed: %s", 6092 dwarf_errmsg(de)); 6093 continue; 6094 } 6095 if (pre_cie == NULL || cie != pre_cie) { 6096 pre_cie = cie; 6097 if (dwarf_get_cie_info(cie, &cie_length, &cie_version, 6098 &cie_aug, &cie_caf, &cie_daf, &cie_ra, 6099 &cie_inst, &cie_instlen, &de) != DW_DLV_OK) { 6100 warnx("dwarf_get_cie_info failed: %s", 6101 dwarf_errmsg(de)); 6102 continue; 6103 } 6104 printf("%08jx %08jx %8.8jx CIE", 6105 (uintmax_t) cie_offset, 6106 (uintmax_t) cie_length, 6107 (uintmax_t) (eh_frame ? 0 : ~0U)); 6108 if (!alt) { 6109 putchar('\n'); 6110 printf(" Version:\t\t\t%u\n", cie_version); 6111 printf(" Augmentation:\t\t\t\""); 6112 while ((c = *cie_aug++) != '\0') 6113 putchar(c); 6114 printf("\"\n"); 6115 printf(" Code alignment factor:\t%ju\n", 6116 (uintmax_t) cie_caf); 6117 printf(" Data alignment factor:\t%jd\n", 6118 (intmax_t) cie_daf); 6119 printf(" Return address column:\t%ju\n", 6120 (uintmax_t) cie_ra); 6121 putchar('\n'); 6122 dump_dwarf_frame_inst(re, cie, cie_inst, 6123 cie_instlen, cie_caf, cie_daf, 0, 6124 re->dbg); 6125 putchar('\n'); 6126 } else { 6127 printf(" \""); 6128 while ((c = *cie_aug++) != '\0') 6129 putchar(c); 6130 putchar('"'); 6131 printf(" cf=%ju df=%jd ra=%ju\n", 6132 (uintmax_t) cie_caf, 6133 (uintmax_t) cie_daf, 6134 (uintmax_t) cie_ra); 6135 dump_dwarf_frame_regtable(re, fde, low_pc, 1, 6136 cie_ra); 6137 putchar('\n'); 6138 } 6139 } 6140 printf("%08jx %08jx %08jx FDE cie=%08jx pc=%08jx..%08jx\n", 6141 (uintmax_t) fde_offset, (uintmax_t) fde_length, 6142 (uintmax_t) cie_offset, 6143 (uintmax_t) (eh_frame ? fde_offset + 4 - cie_offset : 6144 cie_offset), 6145 (uintmax_t) low_pc, (uintmax_t) (low_pc + func_len)); 6146 if (!alt) 6147 dump_dwarf_frame_inst(re, cie, fde_inst, fde_instlen, 6148 cie_caf, cie_daf, low_pc, re->dbg); 6149 else 6150 dump_dwarf_frame_regtable(re, fde, low_pc, func_len, 6151 cie_ra); 6152 putchar('\n'); 6153 } 6154 } 6155 6156 static void 6157 dump_dwarf_frame(struct readelf *re, int alt) 6158 { 6159 struct section *s; 6160 int i; 6161 6162 (void) dwarf_set_frame_cfa_value(re->dbg, DW_FRAME_CFA_COL); 6163 6164 for (i = 0; (size_t) i < re->shnum; i++) { 6165 s = &re->sl[i]; 6166 if (s->name != NULL && (!strcmp(s->name, ".debug_frame") || 6167 !strcmp(s->name, ".eh_frame"))) 6168 dump_dwarf_frame_section(re, s, alt); 6169 } 6170 } 6171 6172 static void 6173 dump_dwarf_str(struct readelf *re) 6174 { 6175 struct section *s; 6176 Elf_Data *d; 6177 unsigned char *p; 6178 int elferr, end, i, j; 6179 6180 printf("\nContents of section .debug_str:\n"); 6181 6182 s = NULL; 6183 for (i = 0; (size_t) i < re->shnum; i++) { 6184 s = &re->sl[i]; 6185 if (s->name != NULL && !strcmp(s->name, ".debug_str")) 6186 break; 6187 } 6188 if ((size_t) i >= re->shnum) 6189 return; 6190 6191 (void) elf_errno(); 6192 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 6193 elferr = elf_errno(); 6194 if (elferr != 0) 6195 warnx("elf_getdata failed: %s", elf_errmsg(-1)); 6196 return; 6197 } 6198 if (d->d_size <= 0) 6199 return; 6200 6201 for (i = 0, p = d->d_buf; (size_t) i < d->d_size; i += 16) { 6202 printf(" 0x%08x", (unsigned int) i); 6203 if ((size_t) i + 16 > d->d_size) 6204 end = d->d_size; 6205 else 6206 end = i + 16; 6207 for (j = i; j < i + 16; j++) { 6208 if ((j - i) % 4 == 0) 6209 putchar(' '); 6210 if (j >= end) { 6211 printf(" "); 6212 continue; 6213 } 6214 printf("%02x", (uint8_t) p[j]); 6215 } 6216 putchar(' '); 6217 for (j = i; j < end; j++) { 6218 if (isprint(p[j])) 6219 putchar(p[j]); 6220 else if (p[j] == 0) 6221 putchar('.'); 6222 else 6223 putchar(' '); 6224 } 6225 putchar('\n'); 6226 } 6227 } 6228 6229 struct loc_at { 6230 Dwarf_Attribute la_at; 6231 Dwarf_Unsigned la_off; 6232 Dwarf_Unsigned la_lowpc; 6233 Dwarf_Half la_cu_psize; 6234 Dwarf_Half la_cu_osize; 6235 Dwarf_Half la_cu_ver; 6236 TAILQ_ENTRY(loc_at) la_next; 6237 }; 6238 6239 static TAILQ_HEAD(, loc_at) lalist = TAILQ_HEAD_INITIALIZER(lalist); 6240 6241 static void 6242 search_loclist_at(struct readelf *re, Dwarf_Die die, Dwarf_Unsigned lowpc) 6243 { 6244 Dwarf_Attribute *attr_list; 6245 Dwarf_Die ret_die; 6246 Dwarf_Unsigned off; 6247 Dwarf_Off ref; 6248 Dwarf_Signed attr_count; 6249 Dwarf_Half attr, form; 6250 Dwarf_Bool is_info; 6251 Dwarf_Error de; 6252 struct loc_at *la, *nla; 6253 int i, ret; 6254 6255 is_info = dwarf_get_die_infotypes_flag(die); 6256 6257 if ((ret = dwarf_attrlist(die, &attr_list, &attr_count, &de)) != 6258 DW_DLV_OK) { 6259 if (ret == DW_DLV_ERROR) 6260 warnx("dwarf_attrlist failed: %s", dwarf_errmsg(de)); 6261 goto cont_search; 6262 } 6263 for (i = 0; i < attr_count; i++) { 6264 if (dwarf_whatattr(attr_list[i], &attr, &de) != DW_DLV_OK) { 6265 warnx("dwarf_whatattr failed: %s", dwarf_errmsg(de)); 6266 continue; 6267 } 6268 if (attr != DW_AT_location && 6269 attr != DW_AT_string_length && 6270 attr != DW_AT_return_addr && 6271 attr != DW_AT_data_member_location && 6272 attr != DW_AT_frame_base && 6273 attr != DW_AT_segment && 6274 attr != DW_AT_static_link && 6275 attr != DW_AT_use_location && 6276 attr != DW_AT_vtable_elem_location) 6277 continue; 6278 if (dwarf_whatform(attr_list[i], &form, &de) != DW_DLV_OK) { 6279 warnx("dwarf_whatform failed: %s", dwarf_errmsg(de)); 6280 continue; 6281 } 6282 if (form == DW_FORM_data4 || form == DW_FORM_data8) { 6283 if (dwarf_formudata(attr_list[i], &off, &de) != 6284 DW_DLV_OK) { 6285 warnx("dwarf_formudata failed: %s", 6286 dwarf_errmsg(de)); 6287 continue; 6288 } 6289 } else if (form == DW_FORM_sec_offset) { 6290 if (dwarf_global_formref(attr_list[i], &ref, &de) != 6291 DW_DLV_OK) { 6292 warnx("dwarf_global_formref failed: %s", 6293 dwarf_errmsg(de)); 6294 continue; 6295 } 6296 off = ref; 6297 } else 6298 continue; 6299 6300 TAILQ_FOREACH(la, &lalist, la_next) { 6301 if (off == la->la_off) 6302 break; 6303 if (off < la->la_off) { 6304 if ((nla = malloc(sizeof(*nla))) == NULL) 6305 err(EXIT_FAILURE, "malloc failed"); 6306 nla->la_at = attr_list[i]; 6307 nla->la_off = off; 6308 nla->la_lowpc = lowpc; 6309 nla->la_cu_psize = re->cu_psize; 6310 nla->la_cu_osize = re->cu_osize; 6311 nla->la_cu_ver = re->cu_ver; 6312 TAILQ_INSERT_BEFORE(la, nla, la_next); 6313 break; 6314 } 6315 } 6316 if (la == NULL) { 6317 if ((nla = malloc(sizeof(*nla))) == NULL) 6318 err(EXIT_FAILURE, "malloc failed"); 6319 nla->la_at = attr_list[i]; 6320 nla->la_off = off; 6321 nla->la_lowpc = lowpc; 6322 nla->la_cu_psize = re->cu_psize; 6323 nla->la_cu_osize = re->cu_osize; 6324 nla->la_cu_ver = re->cu_ver; 6325 TAILQ_INSERT_TAIL(&lalist, nla, la_next); 6326 } 6327 } 6328 6329 cont_search: 6330 /* Search children. */ 6331 ret = dwarf_child(die, &ret_die, &de); 6332 if (ret == DW_DLV_ERROR) 6333 warnx("dwarf_child: %s", dwarf_errmsg(de)); 6334 else if (ret == DW_DLV_OK) 6335 search_loclist_at(re, ret_die, lowpc); 6336 6337 /* Search sibling. */ 6338 ret = dwarf_siblingof_b(re->dbg, die, &ret_die, is_info, &de); 6339 if (ret == DW_DLV_ERROR) 6340 warnx("dwarf_siblingof: %s", dwarf_errmsg(de)); 6341 else if (ret == DW_DLV_OK) 6342 search_loclist_at(re, ret_die, lowpc); 6343 } 6344 6345 static void 6346 dump_dwarf_loc(struct readelf *re, Dwarf_Loc *lr) 6347 { 6348 const char *op_str; 6349 char unk_op[32]; 6350 uint8_t *b, n; 6351 int i; 6352 6353 if (dwarf_get_OP_name(lr->lr_atom, &op_str) != 6354 DW_DLV_OK) { 6355 snprintf(unk_op, sizeof(unk_op), 6356 "[Unknown OP: %#x]", lr->lr_atom); 6357 op_str = unk_op; 6358 } 6359 6360 printf("%s", op_str); 6361 6362 switch (lr->lr_atom) { 6363 case DW_OP_reg0: 6364 case DW_OP_reg1: 6365 case DW_OP_reg2: 6366 case DW_OP_reg3: 6367 case DW_OP_reg4: 6368 case DW_OP_reg5: 6369 case DW_OP_reg6: 6370 case DW_OP_reg7: 6371 case DW_OP_reg8: 6372 case DW_OP_reg9: 6373 case DW_OP_reg10: 6374 case DW_OP_reg11: 6375 case DW_OP_reg12: 6376 case DW_OP_reg13: 6377 case DW_OP_reg14: 6378 case DW_OP_reg15: 6379 case DW_OP_reg16: 6380 case DW_OP_reg17: 6381 case DW_OP_reg18: 6382 case DW_OP_reg19: 6383 case DW_OP_reg20: 6384 case DW_OP_reg21: 6385 case DW_OP_reg22: 6386 case DW_OP_reg23: 6387 case DW_OP_reg24: 6388 case DW_OP_reg25: 6389 case DW_OP_reg26: 6390 case DW_OP_reg27: 6391 case DW_OP_reg28: 6392 case DW_OP_reg29: 6393 case DW_OP_reg30: 6394 case DW_OP_reg31: 6395 printf(" (%s)", dwarf_regname(re, lr->lr_atom - DW_OP_reg0)); 6396 break; 6397 6398 case DW_OP_deref: 6399 case DW_OP_lit0: 6400 case DW_OP_lit1: 6401 case DW_OP_lit2: 6402 case DW_OP_lit3: 6403 case DW_OP_lit4: 6404 case DW_OP_lit5: 6405 case DW_OP_lit6: 6406 case DW_OP_lit7: 6407 case DW_OP_lit8: 6408 case DW_OP_lit9: 6409 case DW_OP_lit10: 6410 case DW_OP_lit11: 6411 case DW_OP_lit12: 6412 case DW_OP_lit13: 6413 case DW_OP_lit14: 6414 case DW_OP_lit15: 6415 case DW_OP_lit16: 6416 case DW_OP_lit17: 6417 case DW_OP_lit18: 6418 case DW_OP_lit19: 6419 case DW_OP_lit20: 6420 case DW_OP_lit21: 6421 case DW_OP_lit22: 6422 case DW_OP_lit23: 6423 case DW_OP_lit24: 6424 case DW_OP_lit25: 6425 case DW_OP_lit26: 6426 case DW_OP_lit27: 6427 case DW_OP_lit28: 6428 case DW_OP_lit29: 6429 case DW_OP_lit30: 6430 case DW_OP_lit31: 6431 case DW_OP_dup: 6432 case DW_OP_drop: 6433 case DW_OP_over: 6434 case DW_OP_swap: 6435 case DW_OP_rot: 6436 case DW_OP_xderef: 6437 case DW_OP_abs: 6438 case DW_OP_and: 6439 case DW_OP_div: 6440 case DW_OP_minus: 6441 case DW_OP_mod: 6442 case DW_OP_mul: 6443 case DW_OP_neg: 6444 case DW_OP_not: 6445 case DW_OP_or: 6446 case DW_OP_plus: 6447 case DW_OP_shl: 6448 case DW_OP_shr: 6449 case DW_OP_shra: 6450 case DW_OP_xor: 6451 case DW_OP_eq: 6452 case DW_OP_ge: 6453 case DW_OP_gt: 6454 case DW_OP_le: 6455 case DW_OP_lt: 6456 case DW_OP_ne: 6457 case DW_OP_nop: 6458 case DW_OP_push_object_address: 6459 case DW_OP_form_tls_address: 6460 case DW_OP_call_frame_cfa: 6461 case DW_OP_stack_value: 6462 case DW_OP_GNU_push_tls_address: 6463 case DW_OP_GNU_uninit: 6464 break; 6465 6466 case DW_OP_const1u: 6467 case DW_OP_pick: 6468 case DW_OP_deref_size: 6469 case DW_OP_xderef_size: 6470 case DW_OP_const2u: 6471 case DW_OP_bra: 6472 case DW_OP_skip: 6473 case DW_OP_const4u: 6474 case DW_OP_const8u: 6475 case DW_OP_constu: 6476 case DW_OP_plus_uconst: 6477 case DW_OP_regx: 6478 case DW_OP_piece: 6479 printf(": %ju", (uintmax_t) 6480 lr->lr_number); 6481 break; 6482 6483 case DW_OP_const1s: 6484 case DW_OP_const2s: 6485 case DW_OP_const4s: 6486 case DW_OP_const8s: 6487 case DW_OP_consts: 6488 printf(": %jd", (intmax_t) 6489 lr->lr_number); 6490 break; 6491 6492 case DW_OP_breg0: 6493 case DW_OP_breg1: 6494 case DW_OP_breg2: 6495 case DW_OP_breg3: 6496 case DW_OP_breg4: 6497 case DW_OP_breg5: 6498 case DW_OP_breg6: 6499 case DW_OP_breg7: 6500 case DW_OP_breg8: 6501 case DW_OP_breg9: 6502 case DW_OP_breg10: 6503 case DW_OP_breg11: 6504 case DW_OP_breg12: 6505 case DW_OP_breg13: 6506 case DW_OP_breg14: 6507 case DW_OP_breg15: 6508 case DW_OP_breg16: 6509 case DW_OP_breg17: 6510 case DW_OP_breg18: 6511 case DW_OP_breg19: 6512 case DW_OP_breg20: 6513 case DW_OP_breg21: 6514 case DW_OP_breg22: 6515 case DW_OP_breg23: 6516 case DW_OP_breg24: 6517 case DW_OP_breg25: 6518 case DW_OP_breg26: 6519 case DW_OP_breg27: 6520 case DW_OP_breg28: 6521 case DW_OP_breg29: 6522 case DW_OP_breg30: 6523 case DW_OP_breg31: 6524 printf(" (%s): %jd", 6525 dwarf_regname(re, lr->lr_atom - DW_OP_breg0), 6526 (intmax_t) lr->lr_number); 6527 break; 6528 6529 case DW_OP_fbreg: 6530 printf(": %jd", (intmax_t) 6531 lr->lr_number); 6532 break; 6533 6534 case DW_OP_bregx: 6535 printf(": %ju (%s) %jd", 6536 (uintmax_t) lr->lr_number, 6537 dwarf_regname(re, (unsigned int) lr->lr_number), 6538 (intmax_t) lr->lr_number2); 6539 break; 6540 6541 case DW_OP_addr: 6542 case DW_OP_GNU_encoded_addr: 6543 printf(": %#jx", (uintmax_t) 6544 lr->lr_number); 6545 break; 6546 6547 case DW_OP_GNU_implicit_pointer: 6548 printf(": <0x%jx> %jd", (uintmax_t) lr->lr_number, 6549 (intmax_t) lr->lr_number2); 6550 break; 6551 6552 case DW_OP_implicit_value: 6553 printf(": %ju byte block:", (uintmax_t) lr->lr_number); 6554 b = (uint8_t *)(uintptr_t) lr->lr_number2; 6555 for (i = 0; (Dwarf_Unsigned) i < lr->lr_number; i++) 6556 printf(" %x", b[i]); 6557 break; 6558 6559 case DW_OP_GNU_entry_value: 6560 printf(": ("); 6561 dump_dwarf_block(re, (uint8_t *)(uintptr_t) lr->lr_number2, 6562 lr->lr_number); 6563 putchar(')'); 6564 break; 6565 6566 case DW_OP_GNU_const_type: 6567 printf(": <0x%jx> ", (uintmax_t) lr->lr_number); 6568 b = (uint8_t *)(uintptr_t) lr->lr_number2; 6569 n = *b; 6570 for (i = 1; (uint8_t) i < n; i++) 6571 printf(" %x", b[i]); 6572 break; 6573 6574 case DW_OP_GNU_regval_type: 6575 printf(": %ju (%s) <0x%jx>", (uintmax_t) lr->lr_number, 6576 dwarf_regname(re, (unsigned int) lr->lr_number), 6577 (uintmax_t) lr->lr_number2); 6578 break; 6579 6580 case DW_OP_GNU_convert: 6581 case DW_OP_GNU_deref_type: 6582 case DW_OP_GNU_parameter_ref: 6583 case DW_OP_GNU_reinterpret: 6584 printf(": <0x%jx>", (uintmax_t) lr->lr_number); 6585 break; 6586 6587 default: 6588 break; 6589 } 6590 } 6591 6592 static void 6593 dump_dwarf_block(struct readelf *re, uint8_t *b, Dwarf_Unsigned len) 6594 { 6595 Dwarf_Locdesc *llbuf; 6596 Dwarf_Signed lcnt; 6597 Dwarf_Error de; 6598 int i; 6599 6600 if (dwarf_loclist_from_expr_b(re->dbg, b, len, re->cu_psize, 6601 re->cu_osize, re->cu_ver, &llbuf, &lcnt, &de) != DW_DLV_OK) { 6602 warnx("dwarf_loclist_form_expr_b: %s", dwarf_errmsg(de)); 6603 return; 6604 } 6605 6606 for (i = 0; (Dwarf_Half) i < llbuf->ld_cents; i++) { 6607 dump_dwarf_loc(re, &llbuf->ld_s[i]); 6608 if (i < llbuf->ld_cents - 1) 6609 printf("; "); 6610 } 6611 6612 dwarf_dealloc(re->dbg, llbuf->ld_s, DW_DLA_LOC_BLOCK); 6613 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LOCDESC); 6614 } 6615 6616 static void 6617 dump_dwarf_loclist(struct readelf *re) 6618 { 6619 Dwarf_Die die; 6620 Dwarf_Locdesc **llbuf; 6621 Dwarf_Unsigned lowpc; 6622 Dwarf_Signed lcnt; 6623 Dwarf_Half tag, version, pointer_size, off_size; 6624 Dwarf_Error de; 6625 struct loc_at *la; 6626 int i, j, ret; 6627 6628 printf("\nContents of section .debug_loc:\n"); 6629 6630 /* Search .debug_info section. */ 6631 while ((ret = dwarf_next_cu_header_b(re->dbg, NULL, &version, NULL, 6632 &pointer_size, &off_size, NULL, NULL, &de)) == DW_DLV_OK) { 6633 set_cu_context(re, pointer_size, off_size, version); 6634 die = NULL; 6635 if (dwarf_siblingof(re->dbg, die, &die, &de) != DW_DLV_OK) 6636 continue; 6637 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 6638 warnx("dwarf_tag failed: %s", dwarf_errmsg(de)); 6639 continue; 6640 } 6641 /* XXX: What about DW_TAG_partial_unit? */ 6642 lowpc = 0; 6643 if (tag == DW_TAG_compile_unit) { 6644 if (dwarf_attrval_unsigned(die, DW_AT_low_pc, 6645 &lowpc, &de) != DW_DLV_OK) 6646 lowpc = 0; 6647 } 6648 6649 /* Search attributes for reference to .debug_loc section. */ 6650 search_loclist_at(re, die, lowpc); 6651 } 6652 if (ret == DW_DLV_ERROR) 6653 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de)); 6654 6655 /* Search .debug_types section. */ 6656 do { 6657 while ((ret = dwarf_next_cu_header_c(re->dbg, 0, NULL, 6658 &version, NULL, &pointer_size, &off_size, NULL, NULL, 6659 NULL, NULL, &de)) == DW_DLV_OK) { 6660 set_cu_context(re, pointer_size, off_size, version); 6661 die = NULL; 6662 if (dwarf_siblingof(re->dbg, die, &die, &de) != 6663 DW_DLV_OK) 6664 continue; 6665 if (dwarf_tag(die, &tag, &de) != DW_DLV_OK) { 6666 warnx("dwarf_tag failed: %s", 6667 dwarf_errmsg(de)); 6668 continue; 6669 } 6670 6671 lowpc = 0; 6672 if (tag == DW_TAG_type_unit) { 6673 if (dwarf_attrval_unsigned(die, DW_AT_low_pc, 6674 &lowpc, &de) != DW_DLV_OK) 6675 lowpc = 0; 6676 } 6677 6678 /* 6679 * Search attributes for reference to .debug_loc 6680 * section. 6681 */ 6682 search_loclist_at(re, die, lowpc); 6683 } 6684 if (ret == DW_DLV_ERROR) 6685 warnx("dwarf_next_cu_header: %s", dwarf_errmsg(de)); 6686 } while (dwarf_next_types_section(re->dbg, &de) == DW_DLV_OK); 6687 6688 if (TAILQ_EMPTY(&lalist)) 6689 return; 6690 6691 printf(" Offset Begin End Expression\n"); 6692 6693 TAILQ_FOREACH(la, &lalist, la_next) { 6694 if (dwarf_loclist_n(la->la_at, &llbuf, &lcnt, &de) != 6695 DW_DLV_OK) { 6696 warnx("dwarf_loclist_n failed: %s", dwarf_errmsg(de)); 6697 continue; 6698 } 6699 set_cu_context(re, la->la_cu_psize, la->la_cu_osize, 6700 la->la_cu_ver); 6701 for (i = 0; i < lcnt; i++) { 6702 printf(" %8.8jx ", la->la_off); 6703 if (llbuf[i]->ld_lopc == 0 && llbuf[i]->ld_hipc == 0) { 6704 printf("<End of list>\n"); 6705 continue; 6706 } 6707 6708 /* TODO: handle base selection entry. */ 6709 6710 printf("%8.8jx %8.8jx ", 6711 (uintmax_t) (la->la_lowpc + llbuf[i]->ld_lopc), 6712 (uintmax_t) (la->la_lowpc + llbuf[i]->ld_hipc)); 6713 6714 putchar('('); 6715 for (j = 0; (Dwarf_Half) j < llbuf[i]->ld_cents; j++) { 6716 dump_dwarf_loc(re, &llbuf[i]->ld_s[j]); 6717 if (j < llbuf[i]->ld_cents - 1) 6718 printf("; "); 6719 } 6720 putchar(')'); 6721 6722 if (llbuf[i]->ld_lopc == llbuf[i]->ld_hipc) 6723 printf(" (start == end)"); 6724 putchar('\n'); 6725 } 6726 for (i = 0; i < lcnt; i++) { 6727 dwarf_dealloc(re->dbg, llbuf[i]->ld_s, 6728 DW_DLA_LOC_BLOCK); 6729 dwarf_dealloc(re->dbg, llbuf[i], DW_DLA_LOCDESC); 6730 } 6731 dwarf_dealloc(re->dbg, llbuf, DW_DLA_LIST); 6732 } 6733 } 6734 6735 /* 6736 * Retrieve a string using string table section index and the string offset. 6737 */ 6738 static const char* 6739 get_string(struct readelf *re, int strtab, size_t off) 6740 { 6741 const char *name; 6742 6743 if ((name = elf_strptr(re->elf, strtab, off)) == NULL) 6744 return (""); 6745 6746 return (name); 6747 } 6748 6749 /* 6750 * Retrieve the name of a symbol using the section index of the symbol 6751 * table and the index of the symbol within that table. 6752 */ 6753 static const char * 6754 get_symbol_name(struct readelf *re, int symtab, int i) 6755 { 6756 struct section *s; 6757 const char *name; 6758 GElf_Sym sym; 6759 Elf_Data *data; 6760 int elferr; 6761 6762 s = &re->sl[symtab]; 6763 if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM) 6764 return (""); 6765 (void) elf_errno(); 6766 if ((data = elf_getdata(s->scn, NULL)) == NULL) { 6767 elferr = elf_errno(); 6768 if (elferr != 0) 6769 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 6770 return (""); 6771 } 6772 if (gelf_getsym(data, i, &sym) != &sym) 6773 return (""); 6774 /* Return section name for STT_SECTION symbol. */ 6775 if (GELF_ST_TYPE(sym.st_info) == STT_SECTION && 6776 re->sl[sym.st_shndx].name != NULL) 6777 return (re->sl[sym.st_shndx].name); 6778 if (s->link >= re->shnum || 6779 (name = elf_strptr(re->elf, s->link, sym.st_name)) == NULL) 6780 return (""); 6781 6782 return (name); 6783 } 6784 6785 static uint64_t 6786 get_symbol_value(struct readelf *re, int symtab, int i) 6787 { 6788 struct section *s; 6789 GElf_Sym sym; 6790 Elf_Data *data; 6791 int elferr; 6792 6793 s = &re->sl[symtab]; 6794 if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM) 6795 return (0); 6796 (void) elf_errno(); 6797 if ((data = elf_getdata(s->scn, NULL)) == NULL) { 6798 elferr = elf_errno(); 6799 if (elferr != 0) 6800 warnx("elf_getdata failed: %s", elf_errmsg(elferr)); 6801 return (0); 6802 } 6803 if (gelf_getsym(data, i, &sym) != &sym) 6804 return (0); 6805 6806 return (sym.st_value); 6807 } 6808 6809 static void 6810 hex_dump(struct readelf *re) 6811 { 6812 struct section *s; 6813 Elf_Data *d; 6814 uint8_t *buf; 6815 size_t sz, nbytes; 6816 uint64_t addr; 6817 int elferr, i, j; 6818 6819 for (i = 1; (size_t) i < re->shnum; i++) { 6820 s = &re->sl[i]; 6821 if (find_dumpop(re, (size_t) i, s->name, HEX_DUMP, -1) == NULL) 6822 continue; 6823 (void) elf_errno(); 6824 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 6825 elferr = elf_errno(); 6826 if (elferr != 0) 6827 warnx("elf_getdata failed: %s", 6828 elf_errmsg(elferr)); 6829 continue; 6830 } 6831 if (d->d_size <= 0 || d->d_buf == NULL) { 6832 printf("\nSection '%s' has no data to dump.\n", 6833 s->name); 6834 continue; 6835 } 6836 buf = d->d_buf; 6837 sz = d->d_size; 6838 addr = s->addr; 6839 printf("\nHex dump of section '%s':\n", s->name); 6840 while (sz > 0) { 6841 printf(" 0x%8.8jx ", (uintmax_t)addr); 6842 nbytes = sz > 16? 16 : sz; 6843 for (j = 0; j < 16; j++) { 6844 if ((size_t)j < nbytes) 6845 printf("%2.2x", buf[j]); 6846 else 6847 printf(" "); 6848 if ((j & 3) == 3) 6849 printf(" "); 6850 } 6851 for (j = 0; (size_t)j < nbytes; j++) { 6852 if (isprint(buf[j])) 6853 printf("%c", buf[j]); 6854 else 6855 printf("."); 6856 } 6857 printf("\n"); 6858 buf += nbytes; 6859 addr += nbytes; 6860 sz -= nbytes; 6861 } 6862 } 6863 } 6864 6865 static void 6866 str_dump(struct readelf *re) 6867 { 6868 struct section *s; 6869 Elf_Data *d; 6870 unsigned char *start, *end, *buf_end; 6871 unsigned int len; 6872 int i, j, elferr, found; 6873 6874 for (i = 1; (size_t) i < re->shnum; i++) { 6875 s = &re->sl[i]; 6876 if (find_dumpop(re, (size_t) i, s->name, STR_DUMP, -1) == NULL) 6877 continue; 6878 (void) elf_errno(); 6879 if ((d = elf_getdata(s->scn, NULL)) == NULL) { 6880 elferr = elf_errno(); 6881 if (elferr != 0) 6882 warnx("elf_getdata failed: %s", 6883 elf_errmsg(elferr)); 6884 continue; 6885 } 6886 if (d->d_size <= 0 || d->d_buf == NULL) { 6887 printf("\nSection '%s' has no data to dump.\n", 6888 s->name); 6889 continue; 6890 } 6891 buf_end = (unsigned char *) d->d_buf + d->d_size; 6892 start = (unsigned char *) d->d_buf; 6893 found = 0; 6894 printf("\nString dump of section '%s':\n", s->name); 6895 for (;;) { 6896 while (start < buf_end && !isprint(*start)) 6897 start++; 6898 if (start >= buf_end) 6899 break; 6900 end = start + 1; 6901 while (end < buf_end && isprint(*end)) 6902 end++; 6903 printf(" [%6lx] ", 6904 (long) (start - (unsigned char *) d->d_buf)); 6905 len = end - start; 6906 for (j = 0; (unsigned int) j < len; j++) 6907 putchar(start[j]); 6908 putchar('\n'); 6909 found = 1; 6910 if (end >= buf_end) 6911 break; 6912 start = end + 1; 6913 } 6914 if (!found) 6915 printf(" No strings found in this section."); 6916 putchar('\n'); 6917 } 6918 } 6919 6920 static void 6921 load_sections(struct readelf *re) 6922 { 6923 struct section *s; 6924 const char *name; 6925 Elf_Scn *scn; 6926 GElf_Shdr sh; 6927 size_t shstrndx, ndx; 6928 int elferr; 6929 6930 /* Allocate storage for internal section list. */ 6931 if (!elf_getshnum(re->elf, &re->shnum)) { 6932 warnx("elf_getshnum failed: %s", elf_errmsg(-1)); 6933 return; 6934 } 6935 if (re->sl != NULL) 6936 free(re->sl); 6937 if ((re->sl = calloc(re->shnum, sizeof(*re->sl))) == NULL) 6938 err(EXIT_FAILURE, "calloc failed"); 6939 6940 /* Get the index of .shstrtab section. */ 6941 if (!elf_getshstrndx(re->elf, &shstrndx)) { 6942 warnx("elf_getshstrndx failed: %s", elf_errmsg(-1)); 6943 return; 6944 } 6945 6946 if ((scn = elf_getscn(re->elf, 0)) == NULL) 6947 return; 6948 6949 (void) elf_errno(); 6950 do { 6951 if (gelf_getshdr(scn, &sh) == NULL) { 6952 warnx("gelf_getshdr failed: %s", elf_errmsg(-1)); 6953 (void) elf_errno(); 6954 continue; 6955 } 6956 if ((name = elf_strptr(re->elf, shstrndx, sh.sh_name)) == NULL) { 6957 (void) elf_errno(); 6958 name = "ERROR"; 6959 } 6960 if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) { 6961 if ((elferr = elf_errno()) != 0) 6962 warnx("elf_ndxscn failed: %s", 6963 elf_errmsg(elferr)); 6964 continue; 6965 } 6966 if (ndx >= re->shnum) { 6967 warnx("section index of '%s' out of range", name); 6968 continue; 6969 } 6970 if (sh.sh_link >= re->shnum) 6971 warnx("section link %llu of '%s' out of range", 6972 (unsigned long long)sh.sh_link, name); 6973 s = &re->sl[ndx]; 6974 s->name = name; 6975 s->scn = scn; 6976 s->off = sh.sh_offset; 6977 s->sz = sh.sh_size; 6978 s->entsize = sh.sh_entsize; 6979 s->align = sh.sh_addralign; 6980 s->type = sh.sh_type; 6981 s->flags = sh.sh_flags; 6982 s->addr = sh.sh_addr; 6983 s->link = sh.sh_link; 6984 s->info = sh.sh_info; 6985 } while ((scn = elf_nextscn(re->elf, scn)) != NULL); 6986 elferr = elf_errno(); 6987 if (elferr != 0) 6988 warnx("elf_nextscn failed: %s", elf_errmsg(elferr)); 6989 } 6990 6991 static void 6992 unload_sections(struct readelf *re) 6993 { 6994 6995 if (re->sl != NULL) { 6996 free(re->sl); 6997 re->sl = NULL; 6998 } 6999 re->shnum = 0; 7000 re->vd_s = NULL; 7001 re->vn_s = NULL; 7002 re->vs_s = NULL; 7003 re->vs = NULL; 7004 re->vs_sz = 0; 7005 if (re->ver != NULL) { 7006 free(re->ver); 7007 re->ver = NULL; 7008 re->ver_sz = 0; 7009 } 7010 } 7011 7012 static void 7013 dump_elf(struct readelf *re) 7014 { 7015 7016 /* Fetch ELF header. No need to continue if it fails. */ 7017 if (gelf_getehdr(re->elf, &re->ehdr) == NULL) { 7018 warnx("gelf_getehdr failed: %s", elf_errmsg(-1)); 7019 return; 7020 } 7021 if ((re->ec = gelf_getclass(re->elf)) == ELFCLASSNONE) { 7022 warnx("gelf_getclass failed: %s", elf_errmsg(-1)); 7023 return; 7024 } 7025 if (re->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) { 7026 re->dw_read = _read_msb; 7027 re->dw_decode = _decode_msb; 7028 } else { 7029 re->dw_read = _read_lsb; 7030 re->dw_decode = _decode_lsb; 7031 } 7032 7033 if (re->options & ~RE_H) 7034 load_sections(re); 7035 if ((re->options & RE_VV) || (re->options & RE_S)) 7036 search_ver(re); 7037 if (re->options & RE_H) 7038 dump_ehdr(re); 7039 if (re->options & RE_L) 7040 dump_phdr(re); 7041 if (re->options & RE_SS) 7042 dump_shdr(re); 7043 if (re->options & RE_G) 7044 dump_section_groups(re); 7045 if (re->options & RE_D) 7046 dump_dynamic(re); 7047 if (re->options & RE_R) 7048 dump_reloc(re); 7049 if (re->options & RE_S) 7050 dump_symtabs(re); 7051 if (re->options & RE_N) 7052 dump_notes(re); 7053 if (re->options & RE_II) 7054 dump_hash(re); 7055 if (re->options & RE_X) 7056 hex_dump(re); 7057 if (re->options & RE_P) 7058 str_dump(re); 7059 if (re->options & RE_VV) 7060 dump_ver(re); 7061 if (re->options & RE_AA) 7062 dump_arch_specific_info(re); 7063 if (re->options & RE_W) 7064 dump_dwarf(re); 7065 if (re->options & ~RE_H) 7066 unload_sections(re); 7067 } 7068 7069 static void 7070 dump_dwarf(struct readelf *re) 7071 { 7072 int error; 7073 Dwarf_Error de; 7074 7075 if (dwarf_elf_init(re->elf, DW_DLC_READ, NULL, NULL, &re->dbg, &de)) { 7076 if ((error = dwarf_errno(de)) != DW_DLE_DEBUG_INFO_NULL) 7077 errx(EXIT_FAILURE, "dwarf_elf_init failed: %s", 7078 dwarf_errmsg(de)); 7079 return; 7080 } 7081 7082 if (re->dop & DW_A) 7083 dump_dwarf_abbrev(re); 7084 if (re->dop & DW_L) 7085 dump_dwarf_line(re); 7086 if (re->dop & DW_LL) 7087 dump_dwarf_line_decoded(re); 7088 if (re->dop & DW_I) { 7089 dump_dwarf_info(re, 0); 7090 dump_dwarf_info(re, 1); 7091 } 7092 if (re->dop & DW_P) 7093 dump_dwarf_pubnames(re); 7094 if (re->dop & DW_R) 7095 dump_dwarf_aranges(re); 7096 if (re->dop & DW_RR) 7097 dump_dwarf_ranges(re); 7098 if (re->dop & DW_M) 7099 dump_dwarf_macinfo(re); 7100 if (re->dop & DW_F) 7101 dump_dwarf_frame(re, 0); 7102 else if (re->dop & DW_FF) 7103 dump_dwarf_frame(re, 1); 7104 if (re->dop & DW_S) 7105 dump_dwarf_str(re); 7106 if (re->dop & DW_O) 7107 dump_dwarf_loclist(re); 7108 7109 dwarf_finish(re->dbg, &de); 7110 } 7111 7112 static void 7113 dump_ar(struct readelf *re, int fd) 7114 { 7115 Elf_Arsym *arsym; 7116 Elf_Arhdr *arhdr; 7117 Elf_Cmd cmd; 7118 Elf *e; 7119 size_t sz; 7120 off_t off; 7121 int i; 7122 7123 re->ar = re->elf; 7124 7125 if (re->options & RE_C) { 7126 if ((arsym = elf_getarsym(re->ar, &sz)) == NULL) { 7127 warnx("elf_getarsym() failed: %s", elf_errmsg(-1)); 7128 goto process_members; 7129 } 7130 printf("Index of archive %s: (%ju entries)\n", re->filename, 7131 (uintmax_t) sz - 1); 7132 off = 0; 7133 for (i = 0; (size_t) i < sz; i++) { 7134 if (arsym[i].as_name == NULL) 7135 break; 7136 if (arsym[i].as_off != off) { 7137 off = arsym[i].as_off; 7138 if (elf_rand(re->ar, off) != off) { 7139 warnx("elf_rand() failed: %s", 7140 elf_errmsg(-1)); 7141 continue; 7142 } 7143 if ((e = elf_begin(fd, ELF_C_READ, re->ar)) == 7144 NULL) { 7145 warnx("elf_begin() failed: %s", 7146 elf_errmsg(-1)); 7147 continue; 7148 } 7149 if ((arhdr = elf_getarhdr(e)) == NULL) { 7150 warnx("elf_getarhdr() failed: %s", 7151 elf_errmsg(-1)); 7152 elf_end(e); 7153 continue; 7154 } 7155 printf("Binary %s(%s) contains:\n", 7156 re->filename, arhdr->ar_name); 7157 } 7158 printf("\t%s\n", arsym[i].as_name); 7159 } 7160 if (elf_rand(re->ar, SARMAG) != SARMAG) { 7161 warnx("elf_rand() failed: %s", elf_errmsg(-1)); 7162 return; 7163 } 7164 } 7165 7166 process_members: 7167 7168 if ((re->options & ~RE_C) == 0) 7169 return; 7170 7171 cmd = ELF_C_READ; 7172 while ((re->elf = elf_begin(fd, cmd, re->ar)) != NULL) { 7173 if ((arhdr = elf_getarhdr(re->elf)) == NULL) { 7174 warnx("elf_getarhdr() failed: %s", elf_errmsg(-1)); 7175 goto next_member; 7176 } 7177 if (strcmp(arhdr->ar_name, "/") == 0 || 7178 strcmp(arhdr->ar_name, "//") == 0 || 7179 strcmp(arhdr->ar_name, "__.SYMDEF") == 0) 7180 goto next_member; 7181 printf("\nFile: %s(%s)\n", re->filename, arhdr->ar_name); 7182 dump_elf(re); 7183 7184 next_member: 7185 cmd = elf_next(re->elf); 7186 elf_end(re->elf); 7187 } 7188 re->elf = re->ar; 7189 } 7190 7191 static void 7192 dump_object(struct readelf *re) 7193 { 7194 int fd; 7195 7196 if ((fd = open(re->filename, O_RDONLY)) == -1) { 7197 warn("open %s failed", re->filename); 7198 return; 7199 } 7200 7201 if ((re->flags & DISPLAY_FILENAME) != 0) 7202 printf("\nFile: %s\n", re->filename); 7203 7204 if ((re->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) { 7205 warnx("elf_begin() failed: %s", elf_errmsg(-1)); 7206 return; 7207 } 7208 7209 switch (elf_kind(re->elf)) { 7210 case ELF_K_NONE: 7211 warnx("Not an ELF file."); 7212 return; 7213 case ELF_K_ELF: 7214 dump_elf(re); 7215 break; 7216 case ELF_K_AR: 7217 dump_ar(re, fd); 7218 break; 7219 default: 7220 warnx("Internal: libelf returned unknown elf kind."); 7221 return; 7222 } 7223 7224 elf_end(re->elf); 7225 } 7226 7227 static void 7228 add_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t) 7229 { 7230 struct dumpop *d; 7231 7232 if ((d = find_dumpop(re, si, sn, -1, t)) == NULL) { 7233 if ((d = calloc(1, sizeof(*d))) == NULL) 7234 err(EXIT_FAILURE, "calloc failed"); 7235 if (t == DUMP_BY_INDEX) 7236 d->u.si = si; 7237 else 7238 d->u.sn = sn; 7239 d->type = t; 7240 d->op = op; 7241 STAILQ_INSERT_TAIL(&re->v_dumpop, d, dumpop_list); 7242 } else 7243 d->op |= op; 7244 } 7245 7246 static struct dumpop * 7247 find_dumpop(struct readelf *re, size_t si, const char *sn, int op, int t) 7248 { 7249 struct dumpop *d; 7250 7251 STAILQ_FOREACH(d, &re->v_dumpop, dumpop_list) { 7252 if ((op == -1 || op & d->op) && 7253 (t == -1 || (unsigned) t == d->type)) { 7254 if ((d->type == DUMP_BY_INDEX && d->u.si == si) || 7255 (d->type == DUMP_BY_NAME && !strcmp(d->u.sn, sn))) 7256 return (d); 7257 } 7258 } 7259 7260 return (NULL); 7261 } 7262 7263 static struct { 7264 const char *ln; 7265 char sn; 7266 int value; 7267 } dwarf_op[] = { 7268 {"rawline", 'l', DW_L}, 7269 {"decodedline", 'L', DW_LL}, 7270 {"info", 'i', DW_I}, 7271 {"abbrev", 'a', DW_A}, 7272 {"pubnames", 'p', DW_P}, 7273 {"aranges", 'r', DW_R}, 7274 {"ranges", 'r', DW_R}, 7275 {"Ranges", 'R', DW_RR}, 7276 {"macro", 'm', DW_M}, 7277 {"frames", 'f', DW_F}, 7278 {"frames-interp", 'F', DW_FF}, 7279 {"str", 's', DW_S}, 7280 {"loc", 'o', DW_O}, 7281 {NULL, 0, 0} 7282 }; 7283 7284 static void 7285 parse_dwarf_op_short(struct readelf *re, const char *op) 7286 { 7287 int i; 7288 7289 if (op == NULL) { 7290 re->dop |= DW_DEFAULT_OPTIONS; 7291 return; 7292 } 7293 7294 for (; *op != '\0'; op++) { 7295 for (i = 0; dwarf_op[i].ln != NULL; i++) { 7296 if (dwarf_op[i].sn == *op) { 7297 re->dop |= dwarf_op[i].value; 7298 break; 7299 } 7300 } 7301 } 7302 } 7303 7304 static void 7305 parse_dwarf_op_long(struct readelf *re, const char *op) 7306 { 7307 char *p, *token, *bp; 7308 int i; 7309 7310 if (op == NULL) { 7311 re->dop |= DW_DEFAULT_OPTIONS; 7312 return; 7313 } 7314 7315 if ((p = strdup(op)) == NULL) 7316 err(EXIT_FAILURE, "strdup failed"); 7317 bp = p; 7318 7319 while ((token = strsep(&p, ",")) != NULL) { 7320 for (i = 0; dwarf_op[i].ln != NULL; i++) { 7321 if (!strcmp(token, dwarf_op[i].ln)) { 7322 re->dop |= dwarf_op[i].value; 7323 break; 7324 } 7325 } 7326 } 7327 7328 free(bp); 7329 } 7330 7331 static uint64_t 7332 _read_lsb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read) 7333 { 7334 uint64_t ret; 7335 uint8_t *src; 7336 7337 src = (uint8_t *) d->d_buf + *offsetp; 7338 7339 ret = 0; 7340 switch (bytes_to_read) { 7341 case 8: 7342 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40; 7343 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56; 7344 case 4: 7345 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24; 7346 case 2: 7347 ret |= ((uint64_t) src[1]) << 8; 7348 case 1: 7349 ret |= src[0]; 7350 break; 7351 default: 7352 return (0); 7353 } 7354 7355 *offsetp += bytes_to_read; 7356 7357 return (ret); 7358 } 7359 7360 static uint64_t 7361 _read_msb(Elf_Data *d, uint64_t *offsetp, int bytes_to_read) 7362 { 7363 uint64_t ret; 7364 uint8_t *src; 7365 7366 src = (uint8_t *) d->d_buf + *offsetp; 7367 7368 switch (bytes_to_read) { 7369 case 1: 7370 ret = src[0]; 7371 break; 7372 case 2: 7373 ret = src[1] | ((uint64_t) src[0]) << 8; 7374 break; 7375 case 4: 7376 ret = src[3] | ((uint64_t) src[2]) << 8; 7377 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24; 7378 break; 7379 case 8: 7380 ret = src[7] | ((uint64_t) src[6]) << 8; 7381 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24; 7382 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40; 7383 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56; 7384 break; 7385 default: 7386 return (0); 7387 } 7388 7389 *offsetp += bytes_to_read; 7390 7391 return (ret); 7392 } 7393 7394 static uint64_t 7395 _decode_lsb(uint8_t **data, int bytes_to_read) 7396 { 7397 uint64_t ret; 7398 uint8_t *src; 7399 7400 src = *data; 7401 7402 ret = 0; 7403 switch (bytes_to_read) { 7404 case 8: 7405 ret |= ((uint64_t) src[4]) << 32 | ((uint64_t) src[5]) << 40; 7406 ret |= ((uint64_t) src[6]) << 48 | ((uint64_t) src[7]) << 56; 7407 case 4: 7408 ret |= ((uint64_t) src[2]) << 16 | ((uint64_t) src[3]) << 24; 7409 case 2: 7410 ret |= ((uint64_t) src[1]) << 8; 7411 case 1: 7412 ret |= src[0]; 7413 break; 7414 default: 7415 return (0); 7416 } 7417 7418 *data += bytes_to_read; 7419 7420 return (ret); 7421 } 7422 7423 static uint64_t 7424 _decode_msb(uint8_t **data, int bytes_to_read) 7425 { 7426 uint64_t ret; 7427 uint8_t *src; 7428 7429 src = *data; 7430 7431 ret = 0; 7432 switch (bytes_to_read) { 7433 case 1: 7434 ret = src[0]; 7435 break; 7436 case 2: 7437 ret = src[1] | ((uint64_t) src[0]) << 8; 7438 break; 7439 case 4: 7440 ret = src[3] | ((uint64_t) src[2]) << 8; 7441 ret |= ((uint64_t) src[1]) << 16 | ((uint64_t) src[0]) << 24; 7442 break; 7443 case 8: 7444 ret = src[7] | ((uint64_t) src[6]) << 8; 7445 ret |= ((uint64_t) src[5]) << 16 | ((uint64_t) src[4]) << 24; 7446 ret |= ((uint64_t) src[3]) << 32 | ((uint64_t) src[2]) << 40; 7447 ret |= ((uint64_t) src[1]) << 48 | ((uint64_t) src[0]) << 56; 7448 break; 7449 default: 7450 return (0); 7451 break; 7452 } 7453 7454 *data += bytes_to_read; 7455 7456 return (ret); 7457 } 7458 7459 static int64_t 7460 _decode_sleb128(uint8_t **dp) 7461 { 7462 int64_t ret = 0; 7463 uint8_t b; 7464 int shift = 0; 7465 7466 uint8_t *src = *dp; 7467 7468 do { 7469 b = *src++; 7470 ret |= ((b & 0x7f) << shift); 7471 shift += 7; 7472 } while ((b & 0x80) != 0); 7473 7474 if (shift < 32 && (b & 0x40) != 0) 7475 ret |= (-1 << shift); 7476 7477 *dp = src; 7478 7479 return (ret); 7480 } 7481 7482 static uint64_t 7483 _decode_uleb128(uint8_t **dp) 7484 { 7485 uint64_t ret = 0; 7486 uint8_t b; 7487 int shift = 0; 7488 7489 uint8_t *src = *dp; 7490 7491 do { 7492 b = *src++; 7493 ret |= ((b & 0x7f) << shift); 7494 shift += 7; 7495 } while ((b & 0x80) != 0); 7496 7497 *dp = src; 7498 7499 return (ret); 7500 } 7501 7502 static void 7503 readelf_version(void) 7504 { 7505 (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(), 7506 elftc_version()); 7507 exit(EXIT_SUCCESS); 7508 } 7509 7510 #define USAGE_MESSAGE "\ 7511 Usage: %s [options] file...\n\ 7512 Display information about ELF objects and ar(1) archives.\n\n\ 7513 Options:\n\ 7514 -a | --all Equivalent to specifying options '-dhIlrsASV'.\n\ 7515 -c | --archive-index Print the archive symbol table for archives.\n\ 7516 -d | --dynamic Print the contents of SHT_DYNAMIC sections.\n\ 7517 -e | --headers Print all headers in the object.\n\ 7518 -g | --section-groups Print the contents of the section groups.\n\ 7519 -h | --file-header Print the file header for the object.\n\ 7520 -l | --program-headers Print the PHDR table for the object.\n\ 7521 -n | --notes Print the contents of SHT_NOTE sections.\n\ 7522 -p INDEX | --string-dump=INDEX\n\ 7523 Print the contents of section at index INDEX.\n\ 7524 -r | --relocs Print relocation information.\n\ 7525 -s | --syms | --symbols Print symbol tables.\n\ 7526 -t | --section-details Print additional information about sections.\n\ 7527 -v | --version Print a version identifier and exit.\n\ 7528 -x INDEX | --hex-dump=INDEX\n\ 7529 Display contents of a section as hexadecimal.\n\ 7530 -A | --arch-specific (accepted, but ignored)\n\ 7531 -D | --use-dynamic Print the symbol table specified by the DT_SYMTAB\n\ 7532 entry in the \".dynamic\" section.\n\ 7533 -H | --help Print a help message.\n\ 7534 -I | --histogram Print information on bucket list lengths for \n\ 7535 hash sections.\n\ 7536 -N | --full-section-name (accepted, but ignored)\n\ 7537 -S | --sections | --section-headers\n\ 7538 Print information about section headers.\n\ 7539 -V | --version-info Print symbol versoning information.\n\ 7540 -W | --wide Print information without wrapping long lines.\n" 7541 7542 7543 static void 7544 readelf_usage(void) 7545 { 7546 fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME()); 7547 exit(EXIT_FAILURE); 7548 } 7549 7550 int 7551 main(int argc, char **argv) 7552 { 7553 struct readelf *re, re_storage; 7554 unsigned long si; 7555 int opt, i; 7556 char *ep; 7557 7558 re = &re_storage; 7559 memset(re, 0, sizeof(*re)); 7560 STAILQ_INIT(&re->v_dumpop); 7561 7562 while ((opt = getopt_long(argc, argv, "AacDdegHhIi:lNnp:rSstuVvWw::x:", 7563 longopts, NULL)) != -1) { 7564 switch(opt) { 7565 case '?': 7566 readelf_usage(); 7567 break; 7568 case 'A': 7569 re->options |= RE_AA; 7570 break; 7571 case 'a': 7572 re->options |= RE_AA | RE_D | RE_G | RE_H | RE_II | 7573 RE_L | RE_R | RE_SS | RE_S | RE_VV; 7574 break; 7575 case 'c': 7576 re->options |= RE_C; 7577 break; 7578 case 'D': 7579 re->options |= RE_DD; 7580 break; 7581 case 'd': 7582 re->options |= RE_D; 7583 break; 7584 case 'e': 7585 re->options |= RE_H | RE_L | RE_SS; 7586 break; 7587 case 'g': 7588 re->options |= RE_G; 7589 break; 7590 case 'H': 7591 readelf_usage(); 7592 break; 7593 case 'h': 7594 re->options |= RE_H; 7595 break; 7596 case 'I': 7597 re->options |= RE_II; 7598 break; 7599 case 'i': 7600 /* Not implemented yet. */ 7601 break; 7602 case 'l': 7603 re->options |= RE_L; 7604 break; 7605 case 'N': 7606 re->options |= RE_NN; 7607 break; 7608 case 'n': 7609 re->options |= RE_N; 7610 break; 7611 case 'p': 7612 re->options |= RE_P; 7613 si = strtoul(optarg, &ep, 10); 7614 if (*ep == '\0') 7615 add_dumpop(re, (size_t) si, NULL, STR_DUMP, 7616 DUMP_BY_INDEX); 7617 else 7618 add_dumpop(re, 0, optarg, STR_DUMP, 7619 DUMP_BY_NAME); 7620 break; 7621 case 'r': 7622 re->options |= RE_R; 7623 break; 7624 case 'S': 7625 re->options |= RE_SS; 7626 break; 7627 case 's': 7628 re->options |= RE_S; 7629 break; 7630 case 't': 7631 re->options |= RE_T; 7632 break; 7633 case 'u': 7634 re->options |= RE_U; 7635 break; 7636 case 'V': 7637 re->options |= RE_VV; 7638 break; 7639 case 'v': 7640 readelf_version(); 7641 break; 7642 case 'W': 7643 re->options |= RE_WW; 7644 break; 7645 case 'w': 7646 re->options |= RE_W; 7647 parse_dwarf_op_short(re, optarg); 7648 break; 7649 case 'x': 7650 re->options |= RE_X; 7651 si = strtoul(optarg, &ep, 10); 7652 if (*ep == '\0') 7653 add_dumpop(re, (size_t) si, NULL, HEX_DUMP, 7654 DUMP_BY_INDEX); 7655 else 7656 add_dumpop(re, 0, optarg, HEX_DUMP, 7657 DUMP_BY_NAME); 7658 break; 7659 case OPTION_DEBUG_DUMP: 7660 re->options |= RE_W; 7661 parse_dwarf_op_long(re, optarg); 7662 } 7663 } 7664 7665 argv += optind; 7666 argc -= optind; 7667 7668 if (argc == 0 || re->options == 0) 7669 readelf_usage(); 7670 7671 if (argc > 1) 7672 re->flags |= DISPLAY_FILENAME; 7673 7674 if (elf_version(EV_CURRENT) == EV_NONE) 7675 errx(EXIT_FAILURE, "ELF library initialization failed: %s", 7676 elf_errmsg(-1)); 7677 7678 for (i = 0; i < argc; i++) { 7679 re->filename = argv[i]; 7680 dump_object(re); 7681 } 7682 7683 exit(EXIT_SUCCESS); 7684 } 7685