| 1 | /* od-macho.c -- dump information about an Mach-O object file. |
| 2 | Copyright (C) 2011-2016 Free Software Foundation, Inc. |
| 3 | Written by Tristan Gingold, Adacore. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include "sysdep.h" |
| 23 | #include <stddef.h> |
| 24 | #include <time.h> |
| 25 | #include "safe-ctype.h" |
| 26 | #include "bfd.h" |
| 27 | #include "objdump.h" |
| 28 | #include "bucomm.h" |
| 29 | #include "bfdlink.h" |
| 30 | #include "libbfd.h" |
| 31 | #include "mach-o.h" |
| 32 | #include "mach-o/external.h" |
| 33 | #include "mach-o/codesign.h" |
| 34 | #include "mach-o/unwind.h" |
| 35 | |
| 36 | /* Index of the options in the options[] array. */ |
| 37 | #define OPT_HEADER 0 |
| 38 | #define OPT_SECTION 1 |
| 39 | #define OPT_MAP 2 |
| 40 | #define OPT_LOAD 3 |
| 41 | #define OPT_DYSYMTAB 4 |
| 42 | #define OPT_CODESIGN 5 |
| 43 | #define OPT_SEG_SPLIT_INFO 6 |
| 44 | #define OPT_COMPACT_UNWIND 7 |
| 45 | #define OPT_FUNCTION_STARTS 8 |
| 46 | #define OPT_DATA_IN_CODE 9 |
| 47 | #define OPT_TWOLEVEL_HINTS 10 |
| 48 | #define OPT_DYLD_INFO 11 |
| 49 | |
| 50 | /* List of actions. */ |
| 51 | static struct objdump_private_option options[] = |
| 52 | { |
| 53 | { "header", 0 }, |
| 54 | { "section", 0 }, |
| 55 | { "map", 0 }, |
| 56 | { "load", 0 }, |
| 57 | { "dysymtab", 0 }, |
| 58 | { "codesign", 0 }, |
| 59 | { "seg_split_info", 0 }, |
| 60 | { "compact_unwind", 0 }, |
| 61 | { "function_starts", 0 }, |
| 62 | { "data_in_code", 0 }, |
| 63 | { "twolevel_hints", 0 }, |
| 64 | { "dyld_info", 0 }, |
| 65 | { NULL, 0 } |
| 66 | }; |
| 67 | |
| 68 | /* Display help. */ |
| 69 | |
| 70 | static void |
| 71 | mach_o_help (FILE *stream) |
| 72 | { |
| 73 | fprintf (stream, _("\ |
| 74 | For Mach-O files:\n\ |
| 75 | header Display the file header\n\ |
| 76 | section Display the segments and sections commands\n\ |
| 77 | map Display the section map\n\ |
| 78 | load Display the load commands\n\ |
| 79 | dysymtab Display the dynamic symbol table\n\ |
| 80 | codesign Display code signature\n\ |
| 81 | seg_split_info Display segment split info\n\ |
| 82 | compact_unwind Display compact unwinding info\n\ |
| 83 | function_starts Display start address of functions\n\ |
| 84 | data_in_code Display data in code entries\n\ |
| 85 | twolevel_hints Display the two-level namespace lookup hints table\n\ |
| 86 | dyld_info Display dyld information\n\ |
| 87 | ")); |
| 88 | } |
| 89 | |
| 90 | /* Return TRUE if ABFD is handled. */ |
| 91 | |
| 92 | static int |
| 93 | mach_o_filter (bfd *abfd) |
| 94 | { |
| 95 | return bfd_get_flavour (abfd) == bfd_target_mach_o_flavour; |
| 96 | } |
| 97 | \f |
| 98 | static const bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] = |
| 99 | { |
| 100 | { "vax", BFD_MACH_O_CPU_TYPE_VAX }, |
| 101 | { "mc680x0", BFD_MACH_O_CPU_TYPE_MC680x0 }, |
| 102 | { "i386", BFD_MACH_O_CPU_TYPE_I386 }, |
| 103 | { "mips", BFD_MACH_O_CPU_TYPE_MIPS }, |
| 104 | { "mc98000", BFD_MACH_O_CPU_TYPE_MC98000 }, |
| 105 | { "hppa", BFD_MACH_O_CPU_TYPE_HPPA }, |
| 106 | { "arm", BFD_MACH_O_CPU_TYPE_ARM }, |
| 107 | { "mc88000", BFD_MACH_O_CPU_TYPE_MC88000 }, |
| 108 | { "sparc", BFD_MACH_O_CPU_TYPE_SPARC }, |
| 109 | { "i860", BFD_MACH_O_CPU_TYPE_I860 }, |
| 110 | { "alpha", BFD_MACH_O_CPU_TYPE_ALPHA }, |
| 111 | { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC }, |
| 112 | { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64 }, |
| 113 | { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64 }, |
| 114 | { "arm64", BFD_MACH_O_CPU_TYPE_ARM64 }, |
| 115 | { NULL, 0} |
| 116 | }; |
| 117 | |
| 118 | static const bfd_mach_o_xlat_name bfd_mach_o_filetype_name[] = |
| 119 | { |
| 120 | { "object", BFD_MACH_O_MH_OBJECT }, |
| 121 | { "execute", BFD_MACH_O_MH_EXECUTE }, |
| 122 | { "fvmlib", BFD_MACH_O_MH_FVMLIB }, |
| 123 | { "core", BFD_MACH_O_MH_CORE }, |
| 124 | { "preload", BFD_MACH_O_MH_PRELOAD }, |
| 125 | { "dylib", BFD_MACH_O_MH_DYLIB }, |
| 126 | { "dylinker", BFD_MACH_O_MH_DYLINKER }, |
| 127 | { "bundle", BFD_MACH_O_MH_BUNDLE }, |
| 128 | { "dylib_stub", BFD_MACH_O_MH_DYLIB_STUB }, |
| 129 | { "dym", BFD_MACH_O_MH_DSYM }, |
| 130 | { "kext_bundle", BFD_MACH_O_MH_KEXT_BUNDLE }, |
| 131 | { NULL, 0} |
| 132 | }; |
| 133 | |
| 134 | static const bfd_mach_o_xlat_name bfd_mach_o_header_flags_name[] = |
| 135 | { |
| 136 | { "noundefs", BFD_MACH_O_MH_NOUNDEFS }, |
| 137 | { "incrlink", BFD_MACH_O_MH_INCRLINK }, |
| 138 | { "dyldlink", BFD_MACH_O_MH_DYLDLINK }, |
| 139 | { "bindatload", BFD_MACH_O_MH_BINDATLOAD }, |
| 140 | { "prebound", BFD_MACH_O_MH_PREBOUND }, |
| 141 | { "split_segs", BFD_MACH_O_MH_SPLIT_SEGS }, |
| 142 | { "lazy_init", BFD_MACH_O_MH_LAZY_INIT }, |
| 143 | { "twolevel", BFD_MACH_O_MH_TWOLEVEL }, |
| 144 | { "force_flat", BFD_MACH_O_MH_FORCE_FLAT }, |
| 145 | { "nomultidefs", BFD_MACH_O_MH_NOMULTIDEFS }, |
| 146 | { "nofixprebinding", BFD_MACH_O_MH_NOFIXPREBINDING }, |
| 147 | { "prebindable", BFD_MACH_O_MH_PREBINDABLE }, |
| 148 | { "allmodsbound", BFD_MACH_O_MH_ALLMODSBOUND }, |
| 149 | { "subsections_via_symbols", BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS }, |
| 150 | { "canonical", BFD_MACH_O_MH_CANONICAL }, |
| 151 | { "weak_defines", BFD_MACH_O_MH_WEAK_DEFINES }, |
| 152 | { "binds_to_weak", BFD_MACH_O_MH_BINDS_TO_WEAK }, |
| 153 | { "allow_stack_execution", BFD_MACH_O_MH_ALLOW_STACK_EXECUTION }, |
| 154 | { "root_safe", BFD_MACH_O_MH_ROOT_SAFE }, |
| 155 | { "setuid_safe", BFD_MACH_O_MH_SETUID_SAFE }, |
| 156 | { "no_reexported_dylibs", BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS }, |
| 157 | { "pie", BFD_MACH_O_MH_PIE }, |
| 158 | { "dead_strippable_dylib", BFD_MACH_O_MH_DEAD_STRIPPABLE_DYLIB }, |
| 159 | { "has_tlv", BFD_MACH_O_MH_HAS_TLV_DESCRIPTORS }, |
| 160 | { "no_heap_execution", BFD_MACH_O_MH_NO_HEAP_EXECUTION }, |
| 161 | { "app_extension_safe", BFD_MACH_O_MH_APP_EXTENSION_SAFE }, |
| 162 | { NULL, 0} |
| 163 | }; |
| 164 | |
| 165 | static const bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] = |
| 166 | { |
| 167 | { "segment", BFD_MACH_O_LC_SEGMENT}, |
| 168 | { "symtab", BFD_MACH_O_LC_SYMTAB}, |
| 169 | { "symseg", BFD_MACH_O_LC_SYMSEG}, |
| 170 | { "thread", BFD_MACH_O_LC_THREAD}, |
| 171 | { "unixthread", BFD_MACH_O_LC_UNIXTHREAD}, |
| 172 | { "loadfvmlib", BFD_MACH_O_LC_LOADFVMLIB}, |
| 173 | { "idfvmlib", BFD_MACH_O_LC_IDFVMLIB}, |
| 174 | { "ident", BFD_MACH_O_LC_IDENT}, |
| 175 | { "fvmfile", BFD_MACH_O_LC_FVMFILE}, |
| 176 | { "prepage", BFD_MACH_O_LC_PREPAGE}, |
| 177 | { "dysymtab", BFD_MACH_O_LC_DYSYMTAB}, |
| 178 | { "load_dylib", BFD_MACH_O_LC_LOAD_DYLIB}, |
| 179 | { "id_dylib", BFD_MACH_O_LC_ID_DYLIB}, |
| 180 | { "load_dylinker", BFD_MACH_O_LC_LOAD_DYLINKER}, |
| 181 | { "id_dylinker", BFD_MACH_O_LC_ID_DYLINKER}, |
| 182 | { "prebound_dylib", BFD_MACH_O_LC_PREBOUND_DYLIB}, |
| 183 | { "routines", BFD_MACH_O_LC_ROUTINES}, |
| 184 | { "sub_framework", BFD_MACH_O_LC_SUB_FRAMEWORK}, |
| 185 | { "sub_umbrella", BFD_MACH_O_LC_SUB_UMBRELLA}, |
| 186 | { "sub_client", BFD_MACH_O_LC_SUB_CLIENT}, |
| 187 | { "sub_library", BFD_MACH_O_LC_SUB_LIBRARY}, |
| 188 | { "twolevel_hints", BFD_MACH_O_LC_TWOLEVEL_HINTS}, |
| 189 | { "prebind_cksum", BFD_MACH_O_LC_PREBIND_CKSUM}, |
| 190 | { "load_weak_dylib", BFD_MACH_O_LC_LOAD_WEAK_DYLIB}, |
| 191 | { "segment_64", BFD_MACH_O_LC_SEGMENT_64}, |
| 192 | { "routines_64", BFD_MACH_O_LC_ROUTINES_64}, |
| 193 | { "uuid", BFD_MACH_O_LC_UUID}, |
| 194 | { "rpath", BFD_MACH_O_LC_RPATH}, |
| 195 | { "code_signature", BFD_MACH_O_LC_CODE_SIGNATURE}, |
| 196 | { "segment_split_info", BFD_MACH_O_LC_SEGMENT_SPLIT_INFO}, |
| 197 | { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB}, |
| 198 | { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB}, |
| 199 | { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO}, |
| 200 | { "dyld_info", BFD_MACH_O_LC_DYLD_INFO}, |
| 201 | { "load_upward_lib", BFD_MACH_O_LC_LOAD_UPWARD_DYLIB}, |
| 202 | { "version_min_macosx", BFD_MACH_O_LC_VERSION_MIN_MACOSX}, |
| 203 | { "version_min_iphoneos", BFD_MACH_O_LC_VERSION_MIN_IPHONEOS}, |
| 204 | { "function_starts", BFD_MACH_O_LC_FUNCTION_STARTS}, |
| 205 | { "dyld_environment", BFD_MACH_O_LC_DYLD_ENVIRONMENT}, |
| 206 | { "main", BFD_MACH_O_LC_MAIN}, |
| 207 | { "data_in_code", BFD_MACH_O_LC_DATA_IN_CODE}, |
| 208 | { "source_version", BFD_MACH_O_LC_SOURCE_VERSION}, |
| 209 | { "dylib_code_sign_drs", BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS}, |
| 210 | { "encryption_info_64", BFD_MACH_O_LC_ENCRYPTION_INFO_64}, |
| 211 | { "linker_options", BFD_MACH_O_LC_LINKER_OPTIONS}, |
| 212 | { "linker_optimization_hint", BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT}, |
| 213 | { NULL, 0} |
| 214 | }; |
| 215 | |
| 216 | static const bfd_mach_o_xlat_name bfd_mach_o_thread_x86_name[] = |
| 217 | { |
| 218 | { "thread_state32", BFD_MACH_O_x86_THREAD_STATE32}, |
| 219 | { "float_state32", BFD_MACH_O_x86_FLOAT_STATE32}, |
| 220 | { "exception_state32", BFD_MACH_O_x86_EXCEPTION_STATE32}, |
| 221 | { "thread_state64", BFD_MACH_O_x86_THREAD_STATE64}, |
| 222 | { "float_state64", BFD_MACH_O_x86_FLOAT_STATE64}, |
| 223 | { "exception_state64", BFD_MACH_O_x86_EXCEPTION_STATE64}, |
| 224 | { "thread_state", BFD_MACH_O_x86_THREAD_STATE}, |
| 225 | { "float_state", BFD_MACH_O_x86_FLOAT_STATE}, |
| 226 | { "exception_state", BFD_MACH_O_x86_EXCEPTION_STATE}, |
| 227 | { "debug_state32", BFD_MACH_O_x86_DEBUG_STATE32}, |
| 228 | { "debug_state64", BFD_MACH_O_x86_DEBUG_STATE64}, |
| 229 | { "debug_state", BFD_MACH_O_x86_DEBUG_STATE}, |
| 230 | { "state_none", BFD_MACH_O_x86_THREAD_STATE_NONE}, |
| 231 | { NULL, 0 } |
| 232 | }; |
| 233 | \f |
| 234 | static void |
| 235 | bfd_mach_o_print_flags (const bfd_mach_o_xlat_name *table, |
| 236 | unsigned long val) |
| 237 | { |
| 238 | int first = 1; |
| 239 | |
| 240 | for (; table->name; table++) |
| 241 | { |
| 242 | if (table->val & val) |
| 243 | { |
| 244 | if (!first) |
| 245 | printf ("+"); |
| 246 | printf ("%s", table->name); |
| 247 | val &= ~table->val; |
| 248 | first = 0; |
| 249 | } |
| 250 | } |
| 251 | if (val) |
| 252 | { |
| 253 | if (!first) |
| 254 | printf ("+"); |
| 255 | printf ("0x%lx", val); |
| 256 | return; |
| 257 | } |
| 258 | if (first) |
| 259 | printf ("-"); |
| 260 | } |
| 261 | |
| 262 | /* Print a bfd_uint64_t, using a platform independant style. */ |
| 263 | |
| 264 | static void |
| 265 | printf_uint64 (bfd_uint64_t v) |
| 266 | { |
| 267 | printf ("0x%08lx%08lx", |
| 268 | (unsigned long)((v >> 16) >> 16), (unsigned long)(v & 0xffffffffUL)); |
| 269 | } |
| 270 | |
| 271 | static const char * |
| 272 | bfd_mach_o_get_name_or_null (const bfd_mach_o_xlat_name *table, |
| 273 | unsigned long val) |
| 274 | { |
| 275 | for (; table->name; table++) |
| 276 | if (table->val == val) |
| 277 | return table->name; |
| 278 | return NULL; |
| 279 | } |
| 280 | |
| 281 | static const char * |
| 282 | bfd_mach_o_get_name (const bfd_mach_o_xlat_name *table, unsigned long val) |
| 283 | { |
| 284 | const char *res = bfd_mach_o_get_name_or_null (table, val); |
| 285 | |
| 286 | if (res == NULL) |
| 287 | return "*UNKNOWN*"; |
| 288 | else |
| 289 | return res; |
| 290 | } |
| 291 | |
| 292 | static void |
| 293 | dump_header (bfd *abfd) |
| 294 | { |
| 295 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 296 | bfd_mach_o_header *h = &mdata->header; |
| 297 | |
| 298 | fputs (_("Mach-O header:\n"), stdout); |
| 299 | printf (_(" magic : %08lx\n"), h->magic); |
| 300 | printf (_(" cputype : %08lx (%s)\n"), h->cputype, |
| 301 | bfd_mach_o_get_name (bfd_mach_o_cpu_name, h->cputype)); |
| 302 | printf (_(" cpusubtype: %08lx\n"), h->cpusubtype); |
| 303 | printf (_(" filetype : %08lx (%s)\n"), |
| 304 | h->filetype, |
| 305 | bfd_mach_o_get_name (bfd_mach_o_filetype_name, h->filetype)); |
| 306 | printf (_(" ncmds : %08lx (%lu)\n"), h->ncmds, h->ncmds); |
| 307 | printf (_(" sizeofcmds: %08lx (%lu)\n"), h->sizeofcmds, h->sizeofcmds); |
| 308 | printf (_(" flags : %08lx ("), h->flags); |
| 309 | bfd_mach_o_print_flags (bfd_mach_o_header_flags_name, h->flags); |
| 310 | fputs (_(")\n"), stdout); |
| 311 | printf (_(" reserved : %08x\n"), h->reserved); |
| 312 | putchar ('\n'); |
| 313 | } |
| 314 | |
| 315 | static void |
| 316 | disp_segment_prot (unsigned int prot) |
| 317 | { |
| 318 | putchar (prot & BFD_MACH_O_PROT_READ ? 'r' : '-'); |
| 319 | putchar (prot & BFD_MACH_O_PROT_WRITE ? 'w' : '-'); |
| 320 | putchar (prot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-'); |
| 321 | } |
| 322 | |
| 323 | static void |
| 324 | dump_section_map (bfd *abfd) |
| 325 | { |
| 326 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 327 | bfd_mach_o_load_command *cmd; |
| 328 | unsigned int sec_nbr = 0; |
| 329 | |
| 330 | fputs (_("Segments and Sections:\n"), stdout); |
| 331 | fputs (_(" #: Segment name Section name Address\n"), stdout); |
| 332 | |
| 333 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
| 334 | { |
| 335 | bfd_mach_o_segment_command *seg; |
| 336 | bfd_mach_o_section *sec; |
| 337 | |
| 338 | if (cmd->type != BFD_MACH_O_LC_SEGMENT |
| 339 | && cmd->type != BFD_MACH_O_LC_SEGMENT_64) |
| 340 | continue; |
| 341 | |
| 342 | seg = &cmd->command.segment; |
| 343 | |
| 344 | printf ("[Segment %-16s ", seg->segname); |
| 345 | printf_vma (seg->vmaddr); |
| 346 | putchar ('-'); |
| 347 | printf_vma (seg->vmaddr + seg->vmsize - 1); |
| 348 | putchar (' '); |
| 349 | disp_segment_prot (seg->initprot); |
| 350 | printf ("]\n"); |
| 351 | |
| 352 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
| 353 | { |
| 354 | printf ("%02u: %-16s %-16s ", ++sec_nbr, |
| 355 | sec->segname, sec->sectname); |
| 356 | printf_vma (sec->addr); |
| 357 | putchar (' '); |
| 358 | printf_vma (sec->size); |
| 359 | printf (" %08lx\n", sec->flags); |
| 360 | } |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | static void |
| 365 | dump_section_header (bfd *abfd ATTRIBUTE_UNUSED, bfd_mach_o_section *sec) |
| 366 | { |
| 367 | printf (" Section: %-16s %-16s (bfdname: %s)\n", |
| 368 | sec->sectname, sec->segname, sec->bfdsection->name); |
| 369 | printf (" addr: "); |
| 370 | printf_vma (sec->addr); |
| 371 | printf (" size: "); |
| 372 | printf_vma (sec->size); |
| 373 | printf (" offset: "); |
| 374 | printf_vma (sec->offset); |
| 375 | printf ("\n"); |
| 376 | printf (" align: %ld", sec->align); |
| 377 | printf (" nreloc: %lu reloff: ", sec->nreloc); |
| 378 | printf_vma (sec->reloff); |
| 379 | printf ("\n"); |
| 380 | printf (" flags: %08lx (type: %s", sec->flags, |
| 381 | bfd_mach_o_get_name (bfd_mach_o_section_type_name, |
| 382 | sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)); |
| 383 | printf (" attr: "); |
| 384 | bfd_mach_o_print_flags (bfd_mach_o_section_attribute_name, |
| 385 | sec->flags & BFD_MACH_O_SECTION_ATTRIBUTES_MASK); |
| 386 | printf (")\n"); |
| 387 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 388 | { |
| 389 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 390 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 391 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 392 | printf (" first indirect sym: %lu", sec->reserved1); |
| 393 | printf (" (%u entries)", |
| 394 | bfd_mach_o_section_get_nbr_indirect (abfd, sec)); |
| 395 | break; |
| 396 | default: |
| 397 | printf (" reserved1: 0x%lx", sec->reserved1); |
| 398 | break; |
| 399 | } |
| 400 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 401 | { |
| 402 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 403 | printf (" stub size: %lu", sec->reserved2); |
| 404 | break; |
| 405 | default: |
| 406 | printf (" reserved2: 0x%lx", sec->reserved2); |
| 407 | break; |
| 408 | } |
| 409 | printf (" reserved3: 0x%lx\n", sec->reserved3); |
| 410 | } |
| 411 | |
| 412 | static void |
| 413 | dump_segment (bfd *abfd ATTRIBUTE_UNUSED, bfd_mach_o_load_command *cmd) |
| 414 | { |
| 415 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
| 416 | bfd_mach_o_section *sec; |
| 417 | |
| 418 | printf (" name: %16s", *seg->segname ? seg->segname : "*none*"); |
| 419 | printf (" nsects: %lu", seg->nsects); |
| 420 | printf (" flags: %lx", seg->flags); |
| 421 | printf (" initprot: "); |
| 422 | disp_segment_prot (seg->initprot); |
| 423 | printf (" maxprot: "); |
| 424 | disp_segment_prot (seg->maxprot); |
| 425 | printf ("\n"); |
| 426 | printf (" vmaddr: "); |
| 427 | printf_vma (seg->vmaddr); |
| 428 | printf (" vmsize: "); |
| 429 | printf_vma (seg->vmsize); |
| 430 | printf ("\n"); |
| 431 | printf (" fileoff: "); |
| 432 | printf_vma (seg->fileoff); |
| 433 | printf (" filesize: "); |
| 434 | printf_vma ((bfd_vma)seg->filesize); |
| 435 | printf (" endoff: "); |
| 436 | printf_vma ((bfd_vma)(seg->fileoff + seg->filesize)); |
| 437 | printf ("\n"); |
| 438 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
| 439 | dump_section_header (abfd, sec); |
| 440 | } |
| 441 | |
| 442 | static void |
| 443 | dump_dysymtab (bfd *abfd, bfd_mach_o_load_command *cmd, bfd_boolean verbose) |
| 444 | { |
| 445 | bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab; |
| 446 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 447 | unsigned int i; |
| 448 | |
| 449 | printf (" local symbols: idx: %10lu num: %-8lu", |
| 450 | dysymtab->ilocalsym, dysymtab->nlocalsym); |
| 451 | printf (" (nxtidx: %lu)\n", |
| 452 | dysymtab->ilocalsym + dysymtab->nlocalsym); |
| 453 | printf (" external symbols: idx: %10lu num: %-8lu", |
| 454 | dysymtab->iextdefsym, dysymtab->nextdefsym); |
| 455 | printf (" (nxtidx: %lu)\n", |
| 456 | dysymtab->iextdefsym + dysymtab->nextdefsym); |
| 457 | printf (" undefined symbols: idx: %10lu num: %-8lu", |
| 458 | dysymtab->iundefsym, dysymtab->nundefsym); |
| 459 | printf (" (nxtidx: %lu)\n", |
| 460 | dysymtab->iundefsym + dysymtab->nundefsym); |
| 461 | printf (" table of content: off: 0x%08lx num: %-8lu", |
| 462 | dysymtab->tocoff, dysymtab->ntoc); |
| 463 | printf (" (endoff: 0x%08lx)\n", |
| 464 | dysymtab->tocoff + dysymtab->ntoc * BFD_MACH_O_TABLE_OF_CONTENT_SIZE); |
| 465 | printf (" module table: off: 0x%08lx num: %-8lu", |
| 466 | dysymtab->modtaboff, dysymtab->nmodtab); |
| 467 | printf (" (endoff: 0x%08lx)\n", |
| 468 | dysymtab->modtaboff + dysymtab->nmodtab |
| 469 | * (mdata->header.version == 2 ? |
| 470 | BFD_MACH_O_DYLIB_MODULE_64_SIZE : BFD_MACH_O_DYLIB_MODULE_SIZE)); |
| 471 | printf (" external reference table: off: 0x%08lx num: %-8lu", |
| 472 | dysymtab->extrefsymoff, dysymtab->nextrefsyms); |
| 473 | printf (" (endoff: 0x%08lx)\n", |
| 474 | dysymtab->extrefsymoff |
| 475 | + dysymtab->nextrefsyms * BFD_MACH_O_REFERENCE_SIZE); |
| 476 | printf (" indirect symbol table: off: 0x%08lx num: %-8lu", |
| 477 | dysymtab->indirectsymoff, dysymtab->nindirectsyms); |
| 478 | printf (" (endoff: 0x%08lx)\n", |
| 479 | dysymtab->indirectsymoff |
| 480 | + dysymtab->nindirectsyms * BFD_MACH_O_INDIRECT_SYMBOL_SIZE); |
| 481 | printf (" external relocation table: off: 0x%08lx num: %-8lu", |
| 482 | dysymtab->extreloff, dysymtab->nextrel); |
| 483 | printf (" (endoff: 0x%08lx)\n", |
| 484 | dysymtab->extreloff + dysymtab->nextrel * BFD_MACH_O_RELENT_SIZE); |
| 485 | printf (" local relocation table: off: 0x%08lx num: %-8lu", |
| 486 | dysymtab->locreloff, dysymtab->nlocrel); |
| 487 | printf (" (endoff: 0x%08lx)\n", |
| 488 | dysymtab->locreloff + dysymtab->nlocrel * BFD_MACH_O_RELENT_SIZE); |
| 489 | |
| 490 | if (!verbose) |
| 491 | return; |
| 492 | |
| 493 | if (dysymtab->ntoc > 0 |
| 494 | || dysymtab->nindirectsyms > 0 |
| 495 | || dysymtab->nextrefsyms > 0) |
| 496 | { |
| 497 | /* Try to read the symbols to display the toc or indirect symbols. */ |
| 498 | bfd_mach_o_read_symtab_symbols (abfd); |
| 499 | } |
| 500 | else if (dysymtab->nmodtab > 0) |
| 501 | { |
| 502 | /* Try to read the strtab to display modules name. */ |
| 503 | bfd_mach_o_read_symtab_strtab (abfd); |
| 504 | } |
| 505 | |
| 506 | for (i = 0; i < dysymtab->nmodtab; i++) |
| 507 | { |
| 508 | bfd_mach_o_dylib_module *module = &dysymtab->dylib_module[i]; |
| 509 | printf (" module %u:\n", i); |
| 510 | printf (" name: %lu", module->module_name_idx); |
| 511 | if (mdata->symtab && mdata->symtab->strtab) |
| 512 | printf (": %s", |
| 513 | mdata->symtab->strtab + module->module_name_idx); |
| 514 | printf ("\n"); |
| 515 | printf (" extdefsym: idx: %8lu num: %lu\n", |
| 516 | module->iextdefsym, module->nextdefsym); |
| 517 | printf (" refsym: idx: %8lu num: %lu\n", |
| 518 | module->irefsym, module->nrefsym); |
| 519 | printf (" localsym: idx: %8lu num: %lu\n", |
| 520 | module->ilocalsym, module->nlocalsym); |
| 521 | printf (" extrel: idx: %8lu num: %lu\n", |
| 522 | module->iextrel, module->nextrel); |
| 523 | printf (" init: idx: %8u num: %u\n", |
| 524 | module->iinit, module->ninit); |
| 525 | printf (" term: idx: %8u num: %u\n", |
| 526 | module->iterm, module->nterm); |
| 527 | printf (" objc_module_info: addr: "); |
| 528 | printf_vma (module->objc_module_info_addr); |
| 529 | printf (" size: %lu\n", module->objc_module_info_size); |
| 530 | } |
| 531 | |
| 532 | if (dysymtab->ntoc > 0) |
| 533 | { |
| 534 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 535 | |
| 536 | printf (" table of content: (symbol/module)\n"); |
| 537 | for (i = 0; i < dysymtab->ntoc; i++) |
| 538 | { |
| 539 | bfd_mach_o_dylib_table_of_content *toc = &dysymtab->dylib_toc[i]; |
| 540 | |
| 541 | printf (" %4u: ", i); |
| 542 | if (symtab && symtab->symbols && toc->symbol_index < symtab->nsyms) |
| 543 | { |
| 544 | const char *name = symtab->symbols[toc->symbol_index].symbol.name; |
| 545 | printf ("%s (%lu)", name ? name : "*invalid*", |
| 546 | toc->symbol_index); |
| 547 | } |
| 548 | else |
| 549 | printf ("%lu", toc->symbol_index); |
| 550 | |
| 551 | printf (" / "); |
| 552 | if (symtab && symtab->strtab |
| 553 | && toc->module_index < dysymtab->nmodtab) |
| 554 | { |
| 555 | bfd_mach_o_dylib_module *mod; |
| 556 | mod = &dysymtab->dylib_module[toc->module_index]; |
| 557 | printf ("%s (%lu)", |
| 558 | symtab->strtab + mod->module_name_idx, |
| 559 | toc->module_index); |
| 560 | } |
| 561 | else |
| 562 | printf ("%lu", toc->module_index); |
| 563 | |
| 564 | printf ("\n"); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | if (dysymtab->nindirectsyms != 0) |
| 569 | { |
| 570 | printf (" indirect symbols:\n"); |
| 571 | |
| 572 | for (i = 0; i < mdata->nsects; i++) |
| 573 | { |
| 574 | bfd_mach_o_section *sec = mdata->sections[i]; |
| 575 | unsigned int j, first, last; |
| 576 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 577 | bfd_vma addr; |
| 578 | bfd_vma entry_size; |
| 579 | |
| 580 | switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) |
| 581 | { |
| 582 | case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: |
| 583 | case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: |
| 584 | case BFD_MACH_O_S_SYMBOL_STUBS: |
| 585 | first = sec->reserved1; |
| 586 | last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); |
| 587 | addr = sec->addr; |
| 588 | entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); |
| 589 | printf (" for section %s.%s:\n", |
| 590 | sec->segname, sec->sectname); |
| 591 | for (j = first; j < last; j++) |
| 592 | { |
| 593 | unsigned int isym = dysymtab->indirect_syms[j]; |
| 594 | |
| 595 | printf (" "); |
| 596 | printf_vma (addr); |
| 597 | printf (" %5u: 0x%08x", j, isym); |
| 598 | if (isym & BFD_MACH_O_INDIRECT_SYMBOL_LOCAL) |
| 599 | printf (" LOCAL"); |
| 600 | if (isym & BFD_MACH_O_INDIRECT_SYMBOL_ABS) |
| 601 | printf (" ABSOLUTE"); |
| 602 | if (symtab && symtab->symbols |
| 603 | && isym < symtab->nsyms |
| 604 | && symtab->symbols[isym].symbol.name) |
| 605 | printf (" %s", symtab->symbols[isym].symbol.name); |
| 606 | printf ("\n"); |
| 607 | addr += entry_size; |
| 608 | } |
| 609 | break; |
| 610 | default: |
| 611 | break; |
| 612 | } |
| 613 | } |
| 614 | } |
| 615 | if (dysymtab->nextrefsyms > 0) |
| 616 | { |
| 617 | bfd_mach_o_symtab_command *symtab = mdata->symtab; |
| 618 | |
| 619 | printf (" external reference table: (symbol flags)\n"); |
| 620 | for (i = 0; i < dysymtab->nextrefsyms; i++) |
| 621 | { |
| 622 | bfd_mach_o_dylib_reference *ref = &dysymtab->ext_refs[i]; |
| 623 | |
| 624 | printf (" %4u: %5lu 0x%02lx", i, ref->isym, ref->flags); |
| 625 | if (symtab && symtab->symbols |
| 626 | && ref->isym < symtab->nsyms |
| 627 | && symtab->symbols[ref->isym].symbol.name) |
| 628 | printf (" %s", symtab->symbols[ref->isym].symbol.name); |
| 629 | printf ("\n"); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | } |
| 634 | |
| 635 | static bfd_boolean |
| 636 | load_and_dump (bfd *abfd, ufile_ptr off, unsigned int len, |
| 637 | void (*dump)(bfd *abfd, unsigned char *buf, unsigned int len, |
| 638 | ufile_ptr off)) |
| 639 | { |
| 640 | unsigned char *buf; |
| 641 | |
| 642 | if (len == 0) |
| 643 | return TRUE; |
| 644 | |
| 645 | buf = xmalloc (len); |
| 646 | |
| 647 | if (bfd_seek (abfd, off, SEEK_SET) == 0 |
| 648 | && bfd_bread (buf, len, abfd) == len) |
| 649 | dump (abfd, buf, len, off); |
| 650 | else |
| 651 | return FALSE; |
| 652 | |
| 653 | free (buf); |
| 654 | return TRUE; |
| 655 | } |
| 656 | |
| 657 | static const bfd_mach_o_xlat_name bfd_mach_o_dyld_rebase_type_name[] = |
| 658 | { |
| 659 | { "pointer", BFD_MACH_O_REBASE_TYPE_POINTER }, |
| 660 | { "text_abs32", BFD_MACH_O_REBASE_TYPE_TEXT_ABSOLUTE32 }, |
| 661 | { "text_pcrel32", BFD_MACH_O_REBASE_TYPE_TEXT_PCREL32 }, |
| 662 | { NULL, 0 } |
| 663 | }; |
| 664 | |
| 665 | static void |
| 666 | dump_dyld_info_rebase (bfd *abfd, unsigned char *buf, unsigned int len, |
| 667 | ufile_ptr off ATTRIBUTE_UNUSED) |
| 668 | { |
| 669 | unsigned int i; |
| 670 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 671 | unsigned int ptrsize = mdata->header.version == 2 ? 8 : 4; |
| 672 | |
| 673 | for (i = 0; i < len; ) |
| 674 | { |
| 675 | unsigned char b = buf[i++]; |
| 676 | unsigned char imm = b & BFD_MACH_O_REBASE_IMMEDIATE_MASK; |
| 677 | bfd_vma leb; |
| 678 | unsigned int leblen; |
| 679 | |
| 680 | printf (" [0x%04x] 0x%02x: ", i, b); |
| 681 | switch (b & BFD_MACH_O_REBASE_OPCODE_MASK) |
| 682 | { |
| 683 | case BFD_MACH_O_REBASE_OPCODE_DONE: |
| 684 | printf ("done\n"); |
| 685 | return; |
| 686 | case BFD_MACH_O_REBASE_OPCODE_SET_TYPE_IMM: |
| 687 | printf ("set_type %s\n", |
| 688 | bfd_mach_o_get_name (bfd_mach_o_dyld_rebase_type_name, imm)); |
| 689 | break; |
| 690 | case BFD_MACH_O_REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: |
| 691 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 692 | printf ("set segment: %u and offset: 0x%08x\n", |
| 693 | imm, (unsigned) leb); |
| 694 | i += leblen; |
| 695 | break; |
| 696 | case BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_ULEB: |
| 697 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 698 | printf ("add addr uleb: 0x%08x\n", (unsigned) leb); |
| 699 | i += leblen; |
| 700 | break; |
| 701 | case BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_IMM_SCALED: |
| 702 | printf ("add addr imm scaled: %u\n", imm * ptrsize); |
| 703 | break; |
| 704 | case BFD_MACH_O_REBASE_OPCODE_DO_REBASE_IMM_TIMES: |
| 705 | printf ("rebase imm times: %u\n", imm); |
| 706 | break; |
| 707 | case BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES: |
| 708 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 709 | printf ("rebase uleb times: %u\n", (unsigned) leb); |
| 710 | i += leblen; |
| 711 | break; |
| 712 | case BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB: |
| 713 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 714 | printf ("rebase add addr uleb: %u\n", (unsigned) leb); |
| 715 | i += leblen; |
| 716 | break; |
| 717 | case BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB: |
| 718 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 719 | printf ("rebase uleb times (%u)", (unsigned) leb); |
| 720 | i += leblen; |
| 721 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 722 | printf (" skipping uleb (%u)\n", (unsigned) leb); |
| 723 | i += leblen; |
| 724 | break; |
| 725 | default: |
| 726 | printf ("unknown\n"); |
| 727 | return; |
| 728 | } |
| 729 | } |
| 730 | printf (" rebase commands without end!\n"); |
| 731 | } |
| 732 | |
| 733 | static void |
| 734 | dump_dyld_info_bind (bfd *abfd, unsigned char *buf, unsigned int len, |
| 735 | ufile_ptr off ATTRIBUTE_UNUSED) |
| 736 | { |
| 737 | unsigned int i; |
| 738 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 739 | unsigned int ptrsize = mdata->header.version == 2 ? 8 : 4; |
| 740 | |
| 741 | for (i = 0; i < len; ) |
| 742 | { |
| 743 | unsigned char b = buf[i++]; |
| 744 | unsigned char imm = b & BFD_MACH_O_BIND_IMMEDIATE_MASK; |
| 745 | bfd_vma leb; |
| 746 | unsigned int leblen; |
| 747 | |
| 748 | printf (" [0x%04x] 0x%02x: ", i, b); |
| 749 | switch (b & BFD_MACH_O_BIND_OPCODE_MASK) |
| 750 | { |
| 751 | case BFD_MACH_O_BIND_OPCODE_DONE: |
| 752 | printf ("done\n"); |
| 753 | return; |
| 754 | case BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_IMM: |
| 755 | printf ("set dylib ordinal imm: %u\n", imm); |
| 756 | break; |
| 757 | case BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB: |
| 758 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 759 | printf ("set dylib ordinal uleb: %u\n", imm); |
| 760 | i += leblen; |
| 761 | break; |
| 762 | case BFD_MACH_O_BIND_OPCODE_SET_DYLIB_SPECIAL_IMM: |
| 763 | imm = (imm != 0) ? imm | BFD_MACH_O_BIND_OPCODE_MASK : imm; |
| 764 | printf ("set dylib special imm: %d\n", imm); |
| 765 | break; |
| 766 | case BFD_MACH_O_BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: |
| 767 | printf ("set symbol trailing flags imm: 0x%02x, ", imm); |
| 768 | for (; i < len && buf[i] != 0; i++) |
| 769 | putchar (buf[i] >= ' ' && buf[i] < 0x7f ? buf[i] : '?'); |
| 770 | putchar ('\n'); |
| 771 | i++; |
| 772 | break; |
| 773 | case BFD_MACH_O_BIND_OPCODE_SET_TYPE_IMM: |
| 774 | /* Kludge: use the same table as rebase type. */ |
| 775 | printf ("set_type %s\n", |
| 776 | bfd_mach_o_get_name (bfd_mach_o_dyld_rebase_type_name, imm)); |
| 777 | break; |
| 778 | case BFD_MACH_O_BIND_OPCODE_SET_ADDEND_SLEB: |
| 779 | { |
| 780 | bfd_signed_vma svma; |
| 781 | svma = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 782 | printf ("set addend sleb: 0x%08x\n", (unsigned) svma); |
| 783 | i += leblen; |
| 784 | } |
| 785 | break; |
| 786 | case BFD_MACH_O_BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: |
| 787 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 788 | printf ("set segment: %u and offset: 0x%08x\n", |
| 789 | imm, (unsigned) leb); |
| 790 | i += leblen; |
| 791 | break; |
| 792 | case BFD_MACH_O_BIND_OPCODE_ADD_ADDR_ULEB: |
| 793 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 794 | printf ("add addr uleb: 0x%08x\n", (unsigned) leb); |
| 795 | i += leblen; |
| 796 | break; |
| 797 | case BFD_MACH_O_BIND_OPCODE_DO_BIND: |
| 798 | printf ("do bind\n"); |
| 799 | break; |
| 800 | case BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB: |
| 801 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 802 | printf ("do bind add addr uleb: 0x%08x\n", (unsigned) leb); |
| 803 | i += leblen; |
| 804 | break; |
| 805 | case BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED: |
| 806 | printf ("do bind add addr imm scaled: %u\n", imm * ptrsize); |
| 807 | break; |
| 808 | case BFD_MACH_O_BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB: |
| 809 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 810 | printf ("do bind uleb times (%u)", (unsigned) leb); |
| 811 | i += leblen; |
| 812 | leb = read_unsigned_leb128 (abfd, buf + i, &leblen); |
| 813 | printf (" skipping uleb (%u)\n", (unsigned) leb); |
| 814 | i += leblen; |
| 815 | break; |
| 816 | default: |
| 817 | printf ("unknown\n"); |
| 818 | return; |
| 819 | } |
| 820 | } |
| 821 | printf (" bind commands without end!\n"); |
| 822 | } |
| 823 | |
| 824 | struct export_info_data |
| 825 | { |
| 826 | const unsigned char *name; |
| 827 | struct export_info_data *next; |
| 828 | }; |
| 829 | |
| 830 | static void |
| 831 | dump_dyld_info_export_1 (bfd *abfd, unsigned char *buf, unsigned int len, |
| 832 | unsigned int off, struct export_info_data *parent, |
| 833 | struct export_info_data *base) |
| 834 | { |
| 835 | bfd_vma size; |
| 836 | unsigned int leblen; |
| 837 | unsigned int child_count; |
| 838 | unsigned int i; |
| 839 | |
| 840 | size = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 841 | off += leblen; |
| 842 | |
| 843 | if (size != 0) |
| 844 | { |
| 845 | bfd_vma flags; |
| 846 | struct export_info_data *d; |
| 847 | |
| 848 | flags = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 849 | off += leblen; |
| 850 | |
| 851 | fputs (" ", stdout); |
| 852 | switch (flags & BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_MASK) |
| 853 | { |
| 854 | case BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_REGULAR: |
| 855 | putchar ('-'); |
| 856 | break; |
| 857 | case BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL: |
| 858 | putchar ('T'); |
| 859 | break; |
| 860 | default: |
| 861 | putchar ('?'); |
| 862 | break; |
| 863 | } |
| 864 | putchar ((flags & BFD_MACH_O_EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION) ? |
| 865 | 'W' : '-'); |
| 866 | |
| 867 | if (flags & BFD_MACH_O_EXPORT_SYMBOL_FLAGS_REEXPORT) |
| 868 | { |
| 869 | bfd_vma lib; |
| 870 | |
| 871 | lib = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 872 | off += leblen; |
| 873 | |
| 874 | fputs (" [reexport] ", stdout); |
| 875 | for (d = base; d != NULL; d = d->next) |
| 876 | printf ("%s", d->name); |
| 877 | |
| 878 | fputs (" (", stdout); |
| 879 | if (buf[off] != 0) |
| 880 | { |
| 881 | fputs ((const char *)buf + off, stdout); |
| 882 | putchar (' '); |
| 883 | off += strlen ((const char *)buf + off); |
| 884 | } |
| 885 | printf ("from dylib %u)\n", (unsigned) lib); |
| 886 | off++; |
| 887 | } |
| 888 | else |
| 889 | { |
| 890 | bfd_vma offset; |
| 891 | bfd_vma resolv = 0; |
| 892 | |
| 893 | offset = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 894 | off += leblen; |
| 895 | |
| 896 | if (flags & BFD_MACH_O_EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER) |
| 897 | { |
| 898 | resolv = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 899 | off += leblen; |
| 900 | } |
| 901 | |
| 902 | printf (" 0x%08x ", (unsigned) offset); |
| 903 | for (d = base; d != NULL; d = d->next) |
| 904 | printf ("%s", d->name); |
| 905 | if (flags & BFD_MACH_O_EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER) |
| 906 | printf (" [resolv: 0x%08x]", (unsigned) resolv); |
| 907 | printf ("\n"); |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | child_count = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 912 | off += leblen; |
| 913 | |
| 914 | for (i = 0; i < child_count; i++) |
| 915 | { |
| 916 | struct export_info_data sub_data; |
| 917 | bfd_vma sub_off; |
| 918 | |
| 919 | sub_data.name = buf + off; |
| 920 | sub_data.next = NULL; |
| 921 | parent->next = &sub_data; |
| 922 | |
| 923 | off += strlen ((const char *)buf + off) + 1; |
| 924 | |
| 925 | sub_off = read_unsigned_leb128 (abfd, buf + off, &leblen); |
| 926 | off += leblen; |
| 927 | |
| 928 | dump_dyld_info_export_1 (abfd, buf, len, sub_off, &sub_data, base); |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | static void |
| 933 | dump_dyld_info_export (bfd *abfd, unsigned char *buf, unsigned int len, |
| 934 | ufile_ptr off ATTRIBUTE_UNUSED) |
| 935 | { |
| 936 | struct export_info_data data; |
| 937 | |
| 938 | data.name = (const unsigned char *) ""; |
| 939 | data.next = NULL; |
| 940 | |
| 941 | printf (" fl offset sym (Flags: Tls Weak)\n"); |
| 942 | dump_dyld_info_export_1 (abfd, buf, len, 0, &data, &data); |
| 943 | } |
| 944 | |
| 945 | static void |
| 946 | dump_dyld_info (bfd *abfd, bfd_mach_o_load_command *cmd, |
| 947 | bfd_boolean verbose) |
| 948 | { |
| 949 | bfd_mach_o_dyld_info_command *info = &cmd->command.dyld_info; |
| 950 | |
| 951 | printf (" rebase: off: 0x%08x size: %-8u (endoff: 0x%08x)\n", |
| 952 | info->rebase_off, info->rebase_size, |
| 953 | info->rebase_off + info->rebase_size); |
| 954 | printf (" bind: off: 0x%08x size: %-8u (endoff: 0x%08x)\n", |
| 955 | info->bind_off, info->bind_size, |
| 956 | info->bind_off + info->bind_size); |
| 957 | printf (" weak bind: off: 0x%08x size: %-8u (endoff: 0x%08x)\n", |
| 958 | info->weak_bind_off, info->weak_bind_size, |
| 959 | info->weak_bind_off + info->weak_bind_size); |
| 960 | printf (" lazy bind: off: 0x%08x size: %-8u (endoff: 0x%08x)\n", |
| 961 | info->lazy_bind_off, info->lazy_bind_size, |
| 962 | info->lazy_bind_off + info->lazy_bind_size); |
| 963 | printf (" export: off: 0x%08x size: %-8u (endoff: 0x%08x)\n", |
| 964 | info->export_off, info->export_size, |
| 965 | info->export_off + info->export_size); |
| 966 | |
| 967 | if (!verbose) |
| 968 | return; |
| 969 | |
| 970 | printf (" rebase:\n"); |
| 971 | if (!load_and_dump (abfd, info->rebase_off, info->rebase_size, |
| 972 | dump_dyld_info_rebase)) |
| 973 | non_fatal (_("cannot read rebase dyld info")); |
| 974 | |
| 975 | printf (" bind:\n"); |
| 976 | if (!load_and_dump (abfd, info->bind_off, info->bind_size, |
| 977 | dump_dyld_info_bind)) |
| 978 | non_fatal (_("cannot read bind dyld info")); |
| 979 | |
| 980 | printf (" weak bind:\n"); |
| 981 | if (!load_and_dump (abfd, info->weak_bind_off, info->weak_bind_size, |
| 982 | dump_dyld_info_bind)) |
| 983 | non_fatal (_("cannot read weak bind dyld info")); |
| 984 | |
| 985 | printf (" lazy bind:\n"); |
| 986 | if (!load_and_dump (abfd, info->lazy_bind_off, info->lazy_bind_size, |
| 987 | dump_dyld_info_bind)) |
| 988 | non_fatal (_("cannot read lazy bind dyld info")); |
| 989 | |
| 990 | printf (" exported symbols:\n"); |
| 991 | if (!load_and_dump (abfd, info->export_off, info->export_size, |
| 992 | dump_dyld_info_export)) |
| 993 | non_fatal (_("cannot read export symbols dyld info")); |
| 994 | } |
| 995 | |
| 996 | static void |
| 997 | dump_thread (bfd *abfd, bfd_mach_o_load_command *cmd) |
| 998 | { |
| 999 | bfd_mach_o_thread_command *thread = &cmd->command.thread; |
| 1000 | unsigned int j; |
| 1001 | bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); |
| 1002 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1003 | |
| 1004 | printf (" nflavours: %lu\n", thread->nflavours); |
| 1005 | for (j = 0; j < thread->nflavours; j++) |
| 1006 | { |
| 1007 | bfd_mach_o_thread_flavour *flavour = &thread->flavours[j]; |
| 1008 | const bfd_mach_o_xlat_name *name_table; |
| 1009 | |
| 1010 | printf (" %2u: flavour: 0x%08lx", j, flavour->flavour); |
| 1011 | switch (mdata->header.cputype) |
| 1012 | { |
| 1013 | case BFD_MACH_O_CPU_TYPE_I386: |
| 1014 | case BFD_MACH_O_CPU_TYPE_X86_64: |
| 1015 | name_table = bfd_mach_o_thread_x86_name; |
| 1016 | break; |
| 1017 | default: |
| 1018 | name_table = NULL; |
| 1019 | break; |
| 1020 | } |
| 1021 | if (name_table != NULL) |
| 1022 | printf (": %s", bfd_mach_o_get_name (name_table, flavour->flavour)); |
| 1023 | putchar ('\n'); |
| 1024 | |
| 1025 | printf (" offset: 0x%08lx size: 0x%08lx\n", |
| 1026 | flavour->offset, flavour->size); |
| 1027 | if (bed->_bfd_mach_o_print_thread) |
| 1028 | { |
| 1029 | char *buf = xmalloc (flavour->size); |
| 1030 | |
| 1031 | if (bfd_seek (abfd, flavour->offset, SEEK_SET) == 0 |
| 1032 | && bfd_bread (buf, flavour->size, abfd) == flavour->size) |
| 1033 | (*bed->_bfd_mach_o_print_thread)(abfd, flavour, stdout, buf); |
| 1034 | |
| 1035 | free (buf); |
| 1036 | } |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | static const bfd_mach_o_xlat_name bfd_mach_o_cs_magic[] = |
| 1041 | { |
| 1042 | { "embedded signature", BFD_MACH_O_CS_MAGIC_EMBEDDED_SIGNATURE }, |
| 1043 | { "requirement", BFD_MACH_O_CS_MAGIC_REQUIREMENT }, |
| 1044 | { "requirements", BFD_MACH_O_CS_MAGIC_REQUIREMENTS }, |
| 1045 | { "code directory", BFD_MACH_O_CS_MAGIC_CODEDIRECTORY }, |
| 1046 | { "embedded entitlements", BFD_MACH_O_CS_MAGIC_EMBEDDED_ENTITLEMENTS }, |
| 1047 | { "blob wrapper", BFD_MACH_O_CS_MAGIC_BLOB_WRAPPER }, |
| 1048 | { NULL, 0 } |
| 1049 | }; |
| 1050 | |
| 1051 | static const bfd_mach_o_xlat_name bfd_mach_o_cs_hash_type[] = |
| 1052 | { |
| 1053 | { "no-hash", BFD_MACH_O_CS_NO_HASH }, |
| 1054 | { "sha1", BFD_MACH_O_CS_HASH_SHA1 }, |
| 1055 | { "sha256", BFD_MACH_O_CS_HASH_SHA256 }, |
| 1056 | { "skein 160", BFD_MACH_O_CS_HASH_PRESTANDARD_SKEIN_160x256 }, |
| 1057 | { "skein 256", BFD_MACH_O_CS_HASH_PRESTANDARD_SKEIN_256x512 }, |
| 1058 | { NULL, 0 } |
| 1059 | }; |
| 1060 | |
| 1061 | static unsigned int |
| 1062 | dump_code_signature_blob (bfd *abfd, const unsigned char *buf, unsigned int len); |
| 1063 | |
| 1064 | static void |
| 1065 | dump_code_signature_superblob (bfd *abfd ATTRIBUTE_UNUSED, |
| 1066 | const unsigned char *buf, unsigned int len) |
| 1067 | { |
| 1068 | unsigned int count; |
| 1069 | unsigned int i; |
| 1070 | |
| 1071 | if (len < 12) |
| 1072 | { |
| 1073 | printf (_(" [bad block length]\n")); |
| 1074 | return; |
| 1075 | } |
| 1076 | count = bfd_getb32 (buf + 8); |
| 1077 | printf (_(" %u index entries:\n"), count); |
| 1078 | if (len < 12 + 8 * count) |
| 1079 | { |
| 1080 | printf (_(" [bad block length]\n")); |
| 1081 | return; |
| 1082 | } |
| 1083 | for (i = 0; i < count; i++) |
| 1084 | { |
| 1085 | unsigned int type; |
| 1086 | unsigned int off; |
| 1087 | |
| 1088 | type = bfd_getb32 (buf + 12 + 8 * i); |
| 1089 | off = bfd_getb32 (buf + 12 + 8 * i + 4); |
| 1090 | printf (_(" index entry %u: type: %08x, offset: %08x\n"), |
| 1091 | i, type, off); |
| 1092 | |
| 1093 | dump_code_signature_blob (abfd, buf + off, len - off); |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | static void |
| 1098 | swap_code_codedirectory_v1_in |
| 1099 | (const struct mach_o_codesign_codedirectory_external_v1 *src, |
| 1100 | struct mach_o_codesign_codedirectory_v1 *dst) |
| 1101 | { |
| 1102 | dst->version = bfd_getb32 (src->version); |
| 1103 | dst->flags = bfd_getb32 (src->flags); |
| 1104 | dst->hash_offset = bfd_getb32 (src->hash_offset); |
| 1105 | dst->ident_offset = bfd_getb32 (src->ident_offset); |
| 1106 | dst->nbr_special_slots = bfd_getb32 (src->nbr_special_slots); |
| 1107 | dst->nbr_code_slots = bfd_getb32 (src->nbr_code_slots); |
| 1108 | dst->code_limit = bfd_getb32 (src->code_limit); |
| 1109 | dst->hash_size = src->hash_size[0]; |
| 1110 | dst->hash_type = src->hash_type[0]; |
| 1111 | dst->spare1 = src->spare1[0]; |
| 1112 | dst->page_size = src->page_size[0]; |
| 1113 | dst->spare2 = bfd_getb32 (src->spare2); |
| 1114 | } |
| 1115 | |
| 1116 | static void |
| 1117 | hexdump (unsigned int start, unsigned int len, |
| 1118 | const unsigned char *buf) |
| 1119 | { |
| 1120 | unsigned int i, j; |
| 1121 | |
| 1122 | for (i = 0; i < len; i += 16) |
| 1123 | { |
| 1124 | printf ("%08x:", start + i); |
| 1125 | for (j = 0; j < 16; j++) |
| 1126 | { |
| 1127 | fputc (j == 8 ? '-' : ' ', stdout); |
| 1128 | if (i + j < len) |
| 1129 | printf ("%02x", buf[i + j]); |
| 1130 | else |
| 1131 | fputs (" ", stdout); |
| 1132 | } |
| 1133 | fputc (' ', stdout); |
| 1134 | for (j = 0; j < 16; j++) |
| 1135 | { |
| 1136 | if (i + j < len) |
| 1137 | fputc (ISPRINT (buf[i + j]) ? buf[i + j] : '.', stdout); |
| 1138 | else |
| 1139 | fputc (' ', stdout); |
| 1140 | } |
| 1141 | fputc ('\n', stdout); |
| 1142 | } |
| 1143 | } |
| 1144 | |
| 1145 | static void |
| 1146 | dump_code_signature_codedirectory (bfd *abfd ATTRIBUTE_UNUSED, |
| 1147 | const unsigned char *buf, unsigned int len) |
| 1148 | { |
| 1149 | struct mach_o_codesign_codedirectory_v1 cd; |
| 1150 | const char *id; |
| 1151 | |
| 1152 | if (len < sizeof (struct mach_o_codesign_codedirectory_external_v1)) |
| 1153 | { |
| 1154 | printf (_(" [bad block length]\n")); |
| 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | swap_code_codedirectory_v1_in |
| 1159 | ((const struct mach_o_codesign_codedirectory_external_v1 *) (buf + 8), &cd); |
| 1160 | |
| 1161 | printf (_(" version: %08x\n"), cd.version); |
| 1162 | printf (_(" flags: %08x\n"), cd.flags); |
| 1163 | printf (_(" hash offset: %08x\n"), cd.hash_offset); |
| 1164 | id = (const char *) buf + cd.ident_offset; |
| 1165 | printf (_(" ident offset: %08x (- %08x)\n"), |
| 1166 | cd.ident_offset, cd.ident_offset + (unsigned) strlen (id) + 1); |
| 1167 | printf (_(" identity: %s\n"), id); |
| 1168 | printf (_(" nbr special slots: %08x (at offset %08x)\n"), |
| 1169 | cd.nbr_special_slots, |
| 1170 | cd.hash_offset - cd.nbr_special_slots * cd.hash_size); |
| 1171 | printf (_(" nbr code slots: %08x\n"), cd.nbr_code_slots); |
| 1172 | printf (_(" code limit: %08x\n"), cd.code_limit); |
| 1173 | printf (_(" hash size: %02x\n"), cd.hash_size); |
| 1174 | printf (_(" hash type: %02x (%s)\n"), |
| 1175 | cd.hash_type, |
| 1176 | bfd_mach_o_get_name (bfd_mach_o_cs_hash_type, cd.hash_type)); |
| 1177 | printf (_(" spare1: %02x\n"), cd.spare1); |
| 1178 | printf (_(" page size: %02x\n"), cd.page_size); |
| 1179 | printf (_(" spare2: %08x\n"), cd.spare2); |
| 1180 | if (cd.version >= 0x20100) |
| 1181 | printf (_(" scatter offset: %08x\n"), |
| 1182 | (unsigned) bfd_getb32 (buf + 44)); |
| 1183 | } |
| 1184 | |
| 1185 | static unsigned int |
| 1186 | dump_code_signature_blob (bfd *abfd, const unsigned char *buf, unsigned int len) |
| 1187 | { |
| 1188 | unsigned int magic; |
| 1189 | unsigned int length; |
| 1190 | |
| 1191 | if (len < 8) |
| 1192 | { |
| 1193 | printf (_(" [truncated block]\n")); |
| 1194 | return 0; |
| 1195 | } |
| 1196 | magic = bfd_getb32 (buf); |
| 1197 | length = bfd_getb32 (buf + 4); |
| 1198 | if (magic == 0 || length == 0) |
| 1199 | return 0; |
| 1200 | |
| 1201 | printf (_(" magic : %08x (%s)\n"), magic, |
| 1202 | bfd_mach_o_get_name (bfd_mach_o_cs_magic, magic)); |
| 1203 | printf (_(" length: %08x\n"), length); |
| 1204 | if (length > len) |
| 1205 | { |
| 1206 | printf (_(" [bad block length]\n")); |
| 1207 | return 0; |
| 1208 | } |
| 1209 | |
| 1210 | switch (magic) |
| 1211 | { |
| 1212 | case BFD_MACH_O_CS_MAGIC_EMBEDDED_SIGNATURE: |
| 1213 | dump_code_signature_superblob (abfd, buf, length); |
| 1214 | break; |
| 1215 | case BFD_MACH_O_CS_MAGIC_CODEDIRECTORY: |
| 1216 | dump_code_signature_codedirectory (abfd, buf, length); |
| 1217 | break; |
| 1218 | default: |
| 1219 | hexdump (0, length - 8, buf + 8); |
| 1220 | break; |
| 1221 | } |
| 1222 | return length; |
| 1223 | } |
| 1224 | |
| 1225 | static void |
| 1226 | dump_code_signature (bfd *abfd, bfd_mach_o_linkedit_command *cmd) |
| 1227 | { |
| 1228 | unsigned char *buf = xmalloc (cmd->datasize); |
| 1229 | unsigned int off; |
| 1230 | |
| 1231 | if (bfd_seek (abfd, cmd->dataoff, SEEK_SET) != 0 |
| 1232 | || bfd_bread (buf, cmd->datasize, abfd) != cmd->datasize) |
| 1233 | { |
| 1234 | non_fatal (_("cannot read code signature data")); |
| 1235 | free (buf); |
| 1236 | return; |
| 1237 | } |
| 1238 | for (off = 0; off < cmd->datasize;) |
| 1239 | { |
| 1240 | unsigned int len; |
| 1241 | |
| 1242 | len = dump_code_signature_blob (abfd, buf + off, cmd->datasize - off); |
| 1243 | |
| 1244 | if (len == 0) |
| 1245 | break; |
| 1246 | off += len; |
| 1247 | } |
| 1248 | free (buf); |
| 1249 | } |
| 1250 | |
| 1251 | static void |
| 1252 | dump_segment_split_info (bfd *abfd, bfd_mach_o_linkedit_command *cmd) |
| 1253 | { |
| 1254 | unsigned char *buf = xmalloc (cmd->datasize); |
| 1255 | unsigned char *p; |
| 1256 | unsigned int len; |
| 1257 | bfd_vma addr = 0; |
| 1258 | |
| 1259 | if (bfd_seek (abfd, cmd->dataoff, SEEK_SET) != 0 |
| 1260 | || bfd_bread (buf, cmd->datasize, abfd) != cmd->datasize) |
| 1261 | { |
| 1262 | non_fatal (_("cannot read segment split info")); |
| 1263 | free (buf); |
| 1264 | return; |
| 1265 | } |
| 1266 | if (buf[cmd->datasize - 1] != 0) |
| 1267 | { |
| 1268 | non_fatal (_("segment split info is not nul terminated")); |
| 1269 | free (buf); |
| 1270 | return; |
| 1271 | } |
| 1272 | |
| 1273 | switch (buf[0]) |
| 1274 | { |
| 1275 | case 0: |
| 1276 | printf (_(" 32 bit pointers:\n")); |
| 1277 | break; |
| 1278 | case 1: |
| 1279 | printf (_(" 64 bit pointers:\n")); |
| 1280 | break; |
| 1281 | case 2: |
| 1282 | printf (_(" PPC hi-16:\n")); |
| 1283 | break; |
| 1284 | default: |
| 1285 | printf (_(" Unhandled location type %u\n"), buf[0]); |
| 1286 | break; |
| 1287 | } |
| 1288 | for (p = buf + 1; *p != 0; p += len) |
| 1289 | { |
| 1290 | addr += read_unsigned_leb128 (abfd, p, &len); |
| 1291 | fputs (" ", stdout); |
| 1292 | bfd_printf_vma (abfd, addr); |
| 1293 | putchar ('\n'); |
| 1294 | } |
| 1295 | free (buf); |
| 1296 | } |
| 1297 | |
| 1298 | static void |
| 1299 | dump_function_starts (bfd *abfd, bfd_mach_o_linkedit_command *cmd) |
| 1300 | { |
| 1301 | unsigned char *buf = xmalloc (cmd->datasize); |
| 1302 | unsigned char *end_buf = buf + cmd->datasize; |
| 1303 | unsigned char *p; |
| 1304 | bfd_vma addr; |
| 1305 | |
| 1306 | if (bfd_seek (abfd, cmd->dataoff, SEEK_SET) != 0 |
| 1307 | || bfd_bread (buf, cmd->datasize, abfd) != cmd->datasize) |
| 1308 | { |
| 1309 | non_fatal (_("cannot read function starts")); |
| 1310 | free (buf); |
| 1311 | return; |
| 1312 | } |
| 1313 | |
| 1314 | /* Function starts are delta encoded, starting from the base address. */ |
| 1315 | addr = bfd_mach_o_get_base_address (abfd); |
| 1316 | |
| 1317 | for (p = buf; ;) |
| 1318 | { |
| 1319 | bfd_vma delta = 0; |
| 1320 | unsigned int shift = 0; |
| 1321 | |
| 1322 | if (*p == 0 || p == end_buf) |
| 1323 | break; |
| 1324 | while (1) |
| 1325 | { |
| 1326 | unsigned char b = *p++; |
| 1327 | |
| 1328 | delta |= (b & 0x7f) << shift; |
| 1329 | if ((b & 0x80) == 0) |
| 1330 | break; |
| 1331 | if (p == end_buf) |
| 1332 | { |
| 1333 | fputs (" [truncated]\n", stdout); |
| 1334 | break; |
| 1335 | } |
| 1336 | shift += 7; |
| 1337 | } |
| 1338 | |
| 1339 | addr += delta; |
| 1340 | fputs (" ", stdout); |
| 1341 | bfd_printf_vma (abfd, addr); |
| 1342 | putchar ('\n'); |
| 1343 | } |
| 1344 | free (buf); |
| 1345 | } |
| 1346 | |
| 1347 | static const bfd_mach_o_xlat_name data_in_code_kind_name[] = |
| 1348 | { |
| 1349 | { "data", BFD_MACH_O_DICE_KIND_DATA }, |
| 1350 | { "1 byte jump table", BFD_MACH_O_DICE_JUMP_TABLES8 }, |
| 1351 | { "2 bytes jump table", BFD_MACH_O_DICE_JUMP_TABLES16 }, |
| 1352 | { "4 bytes jump table", BFD_MACH_O_DICE_JUMP_TABLES32 }, |
| 1353 | { "4 bytes abs jump table", BFD_MACH_O_DICE_ABS_JUMP_TABLES32 }, |
| 1354 | { NULL, 0 } |
| 1355 | }; |
| 1356 | |
| 1357 | static void |
| 1358 | dump_data_in_code (bfd *abfd, bfd_mach_o_linkedit_command *cmd) |
| 1359 | { |
| 1360 | unsigned char *buf; |
| 1361 | unsigned char *p; |
| 1362 | |
| 1363 | if (cmd->datasize == 0) |
| 1364 | { |
| 1365 | printf (" no data_in_code entries\n"); |
| 1366 | return; |
| 1367 | } |
| 1368 | |
| 1369 | buf = xmalloc (cmd->datasize); |
| 1370 | if (bfd_seek (abfd, cmd->dataoff, SEEK_SET) != 0 |
| 1371 | || bfd_bread (buf, cmd->datasize, abfd) != cmd->datasize) |
| 1372 | { |
| 1373 | non_fatal (_("cannot read data_in_code")); |
| 1374 | free (buf); |
| 1375 | return; |
| 1376 | } |
| 1377 | |
| 1378 | printf (" offset length kind\n"); |
| 1379 | for (p = buf; p < buf + cmd->datasize; ) |
| 1380 | { |
| 1381 | struct mach_o_data_in_code_entry_external *dice; |
| 1382 | unsigned int offset; |
| 1383 | unsigned int length; |
| 1384 | unsigned int kind; |
| 1385 | |
| 1386 | dice = (struct mach_o_data_in_code_entry_external *) p; |
| 1387 | |
| 1388 | offset = bfd_get_32 (abfd, dice->offset); |
| 1389 | length = bfd_get_16 (abfd, dice->length); |
| 1390 | kind = bfd_get_16 (abfd, dice->kind); |
| 1391 | |
| 1392 | printf (" 0x%08x 0x%04x 0x%04x %s\n", offset, length, kind, |
| 1393 | bfd_mach_o_get_name (data_in_code_kind_name, kind)); |
| 1394 | |
| 1395 | p += sizeof (*dice); |
| 1396 | } |
| 1397 | free (buf); |
| 1398 | } |
| 1399 | |
| 1400 | static void |
| 1401 | dump_twolevel_hints (bfd *abfd, bfd_mach_o_twolevel_hints_command *cmd) |
| 1402 | { |
| 1403 | size_t sz = 4 * cmd->nhints; |
| 1404 | unsigned char *buf; |
| 1405 | unsigned char *p; |
| 1406 | |
| 1407 | buf = xmalloc (sz); |
| 1408 | if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0 |
| 1409 | || bfd_bread (buf, sz, abfd) != sz) |
| 1410 | { |
| 1411 | non_fatal (_("cannot read twolevel hints")); |
| 1412 | free (buf); |
| 1413 | return; |
| 1414 | } |
| 1415 | |
| 1416 | for (p = buf; p < buf + sz; p += 4) |
| 1417 | { |
| 1418 | unsigned int v; |
| 1419 | unsigned int isub_image; |
| 1420 | unsigned int itoc; |
| 1421 | |
| 1422 | v = bfd_get_32 (abfd, p); |
| 1423 | if (bfd_big_endian (abfd)) |
| 1424 | { |
| 1425 | isub_image = (v >> 24) & 0xff; |
| 1426 | itoc = v & 0xffffff; |
| 1427 | } |
| 1428 | else |
| 1429 | { |
| 1430 | isub_image = v & 0xff; |
| 1431 | itoc = (v >> 8) & 0xffffff; |
| 1432 | } |
| 1433 | |
| 1434 | printf (" %3u %8u\n", isub_image, itoc); |
| 1435 | } |
| 1436 | free (buf); |
| 1437 | } |
| 1438 | |
| 1439 | static void |
| 1440 | dump_load_command (bfd *abfd, bfd_mach_o_load_command *cmd, |
| 1441 | unsigned int idx, bfd_boolean verbose) |
| 1442 | { |
| 1443 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1444 | const char *cmd_name; |
| 1445 | |
| 1446 | cmd_name = bfd_mach_o_get_name_or_null |
| 1447 | (bfd_mach_o_load_command_name, cmd->type); |
| 1448 | printf ("Load command #%-2u (size: %3u, offset: %4u): ", |
| 1449 | idx, cmd->len, cmd->offset); |
| 1450 | if (cmd_name == NULL) |
| 1451 | printf ("0x%02x\n", cmd->type); |
| 1452 | else |
| 1453 | printf ("%s\n", cmd_name); |
| 1454 | |
| 1455 | switch (cmd->type) |
| 1456 | { |
| 1457 | case BFD_MACH_O_LC_SEGMENT: |
| 1458 | case BFD_MACH_O_LC_SEGMENT_64: |
| 1459 | dump_segment (abfd, cmd); |
| 1460 | break; |
| 1461 | case BFD_MACH_O_LC_UUID: |
| 1462 | { |
| 1463 | bfd_mach_o_uuid_command *uuid = &cmd->command.uuid; |
| 1464 | unsigned int j; |
| 1465 | |
| 1466 | printf (" "); |
| 1467 | for (j = 0; j < sizeof (uuid->uuid); j ++) |
| 1468 | printf (" %02x", uuid->uuid[j]); |
| 1469 | putchar ('\n'); |
| 1470 | } |
| 1471 | break; |
| 1472 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 1473 | case BFD_MACH_O_LC_LAZY_LOAD_DYLIB: |
| 1474 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 1475 | case BFD_MACH_O_LC_REEXPORT_DYLIB: |
| 1476 | case BFD_MACH_O_LC_ID_DYLIB: |
| 1477 | case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: |
| 1478 | { |
| 1479 | bfd_mach_o_dylib_command *dylib = &cmd->command.dylib; |
| 1480 | printf (" name: %s\n", dylib->name_str); |
| 1481 | printf (" time stamp: 0x%08lx\n", |
| 1482 | dylib->timestamp); |
| 1483 | printf (" current version: 0x%08lx\n", |
| 1484 | dylib->current_version); |
| 1485 | printf (" comptibility version: 0x%08lx\n", |
| 1486 | dylib->compatibility_version); |
| 1487 | } |
| 1488 | break; |
| 1489 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 1490 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 1491 | printf (" %s\n", cmd->command.dylinker.name_str); |
| 1492 | break; |
| 1493 | case BFD_MACH_O_LC_DYLD_ENVIRONMENT: |
| 1494 | printf (" %s\n", cmd->command.dylinker.name_str); |
| 1495 | break; |
| 1496 | case BFD_MACH_O_LC_SYMTAB: |
| 1497 | { |
| 1498 | bfd_mach_o_symtab_command *symtab = &cmd->command.symtab; |
| 1499 | printf (" symoff: 0x%08x nsyms: %8u (endoff: 0x%08x)\n", |
| 1500 | symtab->symoff, symtab->nsyms, |
| 1501 | symtab->symoff + symtab->nsyms |
| 1502 | * (mdata->header.version == 2 |
| 1503 | ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE)); |
| 1504 | printf (" stroff: 0x%08x strsize: %8u (endoff: 0x%08x)\n", |
| 1505 | symtab->stroff, symtab->strsize, |
| 1506 | symtab->stroff + symtab->strsize); |
| 1507 | break; |
| 1508 | } |
| 1509 | case BFD_MACH_O_LC_DYSYMTAB: |
| 1510 | dump_dysymtab (abfd, cmd, verbose); |
| 1511 | break; |
| 1512 | case BFD_MACH_O_LC_LOADFVMLIB: |
| 1513 | case BFD_MACH_O_LC_IDFVMLIB: |
| 1514 | { |
| 1515 | bfd_mach_o_fvmlib_command *fvmlib = &cmd->command.fvmlib; |
| 1516 | printf (" fvmlib: %s\n", fvmlib->name_str); |
| 1517 | printf (" minor version: 0x%08x\n", fvmlib->minor_version); |
| 1518 | printf (" header address: 0x%08x\n", fvmlib->header_addr); |
| 1519 | } |
| 1520 | break; |
| 1521 | case BFD_MACH_O_LC_CODE_SIGNATURE: |
| 1522 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
| 1523 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
| 1524 | case BFD_MACH_O_LC_DATA_IN_CODE: |
| 1525 | case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS: |
| 1526 | { |
| 1527 | bfd_mach_o_linkedit_command *linkedit = &cmd->command.linkedit; |
| 1528 | printf |
| 1529 | (" dataoff: 0x%08lx datasize: 0x%08lx (endoff: 0x%08lx)\n", |
| 1530 | linkedit->dataoff, linkedit->datasize, |
| 1531 | linkedit->dataoff + linkedit->datasize); |
| 1532 | |
| 1533 | if (verbose) |
| 1534 | switch (cmd->type) |
| 1535 | { |
| 1536 | case BFD_MACH_O_LC_CODE_SIGNATURE: |
| 1537 | dump_code_signature (abfd, linkedit); |
| 1538 | break; |
| 1539 | case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: |
| 1540 | dump_segment_split_info (abfd, linkedit); |
| 1541 | break; |
| 1542 | case BFD_MACH_O_LC_FUNCTION_STARTS: |
| 1543 | dump_function_starts (abfd, linkedit); |
| 1544 | break; |
| 1545 | case BFD_MACH_O_LC_DATA_IN_CODE: |
| 1546 | dump_data_in_code (abfd, linkedit); |
| 1547 | break; |
| 1548 | default: |
| 1549 | break; |
| 1550 | } |
| 1551 | } |
| 1552 | break; |
| 1553 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 1554 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
| 1555 | case BFD_MACH_O_LC_SUB_LIBRARY: |
| 1556 | case BFD_MACH_O_LC_SUB_CLIENT: |
| 1557 | case BFD_MACH_O_LC_RPATH: |
| 1558 | { |
| 1559 | bfd_mach_o_str_command *str = &cmd->command.str; |
| 1560 | printf (" %s\n", str->str); |
| 1561 | break; |
| 1562 | } |
| 1563 | case BFD_MACH_O_LC_THREAD: |
| 1564 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 1565 | dump_thread (abfd, cmd); |
| 1566 | break; |
| 1567 | case BFD_MACH_O_LC_ENCRYPTION_INFO: |
| 1568 | { |
| 1569 | bfd_mach_o_encryption_info_command *cryp = |
| 1570 | &cmd->command.encryption_info; |
| 1571 | printf (" cryptoff: 0x%08x cryptsize: 0x%08x (endoff 0x%08x)" |
| 1572 | " cryptid: %u\n", |
| 1573 | cryp->cryptoff, cryp->cryptsize, |
| 1574 | cryp->cryptoff + cryp->cryptsize, |
| 1575 | cryp->cryptid); |
| 1576 | } |
| 1577 | break; |
| 1578 | case BFD_MACH_O_LC_DYLD_INFO: |
| 1579 | dump_dyld_info (abfd, cmd, verbose); |
| 1580 | break; |
| 1581 | case BFD_MACH_O_LC_VERSION_MIN_MACOSX: |
| 1582 | case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: |
| 1583 | { |
| 1584 | bfd_mach_o_version_min_command *ver = &cmd->command.version_min; |
| 1585 | |
| 1586 | printf (" %u.%u.%u\n", ver->rel, ver->maj, ver->min); |
| 1587 | } |
| 1588 | break; |
| 1589 | case BFD_MACH_O_LC_SOURCE_VERSION: |
| 1590 | { |
| 1591 | bfd_mach_o_source_version_command *version = |
| 1592 | &cmd->command.source_version; |
| 1593 | printf (" version a.b.c.d.e: %u.%u.%u.%u.%u\n", |
| 1594 | version->a, version->b, version->c, version->d, version->e); |
| 1595 | break; |
| 1596 | } |
| 1597 | case BFD_MACH_O_LC_PREBOUND_DYLIB: |
| 1598 | { |
| 1599 | bfd_mach_o_prebound_dylib_command *pbdy = &cmd->command.prebound_dylib; |
| 1600 | unsigned char *lm = pbdy->linked_modules; |
| 1601 | unsigned int j; |
| 1602 | unsigned int last; |
| 1603 | |
| 1604 | printf (" dylib: %s\n", pbdy->name_str); |
| 1605 | printf (" nmodules: %u\n", pbdy->nmodules); |
| 1606 | printf (" linked modules (at %u): ", |
| 1607 | pbdy->linked_modules_offset - cmd->offset); |
| 1608 | last = pbdy->nmodules > 32 ? 32 : pbdy->nmodules; |
| 1609 | for (j = 0; j < last; j++) |
| 1610 | printf ("%u", (lm[j >> 3] >> (j & 7)) & 1); |
| 1611 | if (last < pbdy->nmodules) |
| 1612 | printf ("..."); |
| 1613 | putchar ('\n'); |
| 1614 | break; |
| 1615 | } |
| 1616 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
| 1617 | { |
| 1618 | bfd_mach_o_prebind_cksum_command *cksum = &cmd->command.prebind_cksum; |
| 1619 | printf (" 0x%08x\n", cksum->cksum); |
| 1620 | break; |
| 1621 | } |
| 1622 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: |
| 1623 | { |
| 1624 | bfd_mach_o_twolevel_hints_command *hints = |
| 1625 | &cmd->command.twolevel_hints; |
| 1626 | |
| 1627 | printf (" table offset: 0x%08x nbr hints: %u\n", |
| 1628 | hints->offset, hints->nhints); |
| 1629 | if (verbose) |
| 1630 | dump_twolevel_hints (abfd, hints); |
| 1631 | break; |
| 1632 | } |
| 1633 | case BFD_MACH_O_LC_MAIN: |
| 1634 | { |
| 1635 | bfd_mach_o_main_command *entry = &cmd->command.main; |
| 1636 | printf (" entry offset: "); |
| 1637 | printf_uint64 (entry->entryoff); |
| 1638 | printf ("\n" |
| 1639 | " stack size: "); |
| 1640 | printf_uint64 (entry->stacksize); |
| 1641 | printf ("\n"); |
| 1642 | break; |
| 1643 | } |
| 1644 | default: |
| 1645 | break; |
| 1646 | } |
| 1647 | putchar ('\n'); |
| 1648 | } |
| 1649 | |
| 1650 | static void |
| 1651 | dump_load_commands (bfd *abfd, unsigned int cmd32, unsigned int cmd64) |
| 1652 | { |
| 1653 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1654 | bfd_mach_o_load_command *cmd; |
| 1655 | unsigned int i; |
| 1656 | |
| 1657 | for (cmd = mdata->first_command, i = 0; cmd != NULL; cmd = cmd->next, i++) |
| 1658 | { |
| 1659 | if (cmd32 == 0) |
| 1660 | dump_load_command (abfd, cmd, i, FALSE); |
| 1661 | else if (cmd->type == cmd32 || cmd->type == cmd64) |
| 1662 | dump_load_command (abfd, cmd, i, TRUE); |
| 1663 | } |
| 1664 | } |
| 1665 | |
| 1666 | static const char * const unwind_x86_64_regs[] = |
| 1667 | {"", "rbx", "r12", "r13", "r14", "r15", "rbp", "???" }; |
| 1668 | |
| 1669 | static const char * const unwind_x86_regs[] = |
| 1670 | {"", "ebx", "ecx", "edx", "edi", "edi", "ebp", "???" }; |
| 1671 | |
| 1672 | /* Dump x86 or x86-64 compact unwind encoding. Works for both architecture, |
| 1673 | as the encoding is the same (but not register names). */ |
| 1674 | |
| 1675 | static void |
| 1676 | dump_unwind_encoding_x86 (unsigned int encoding, unsigned int sz, |
| 1677 | const char * const regs_name[]) |
| 1678 | { |
| 1679 | unsigned int mode; |
| 1680 | |
| 1681 | mode = encoding & MACH_O_UNWIND_X86_64_MODE_MASK; |
| 1682 | switch (mode) |
| 1683 | { |
| 1684 | case MACH_O_UNWIND_X86_64_MODE_RBP_FRAME: |
| 1685 | { |
| 1686 | unsigned int regs; |
| 1687 | char pfx = sz == 8 ? 'R' : 'E'; |
| 1688 | |
| 1689 | regs = encoding & MACH_O_UNWIND_X86_64_RBP_FRAME_REGSITERS; |
| 1690 | printf (" %cSP frame", pfx); |
| 1691 | if (regs != 0) |
| 1692 | { |
| 1693 | unsigned int offset; |
| 1694 | int i; |
| 1695 | |
| 1696 | offset = (encoding & MACH_O_UNWIND_X86_64_RBP_FRAME_OFFSET) >> 16; |
| 1697 | printf (" at %cBP-%u:", pfx, offset * sz); |
| 1698 | for (i = 0; i < 5; i++) |
| 1699 | { |
| 1700 | unsigned int reg = (regs >> (i * 3)) & 0x7; |
| 1701 | if (reg != MACH_O_UNWIND_X86_64_REG_NONE) |
| 1702 | printf (" %s", regs_name[reg]); |
| 1703 | } |
| 1704 | } |
| 1705 | } |
| 1706 | break; |
| 1707 | case MACH_O_UNWIND_X86_64_MODE_STACK_IMMD: |
| 1708 | case MACH_O_UNWIND_X86_64_MODE_STACK_IND: |
| 1709 | { |
| 1710 | unsigned int stack_size; |
| 1711 | unsigned int reg_count; |
| 1712 | unsigned int reg_perm; |
| 1713 | unsigned int regs[6]; |
| 1714 | int i, j; |
| 1715 | |
| 1716 | printf (" frameless"); |
| 1717 | stack_size = |
| 1718 | (encoding & MACH_O_UNWIND_X86_64_FRAMELESS_STACK_SIZE) >> 16; |
| 1719 | reg_count = |
| 1720 | (encoding & MACH_O_UNWIND_X86_64_FRAMELESS_REG_COUNT) >> 10; |
| 1721 | reg_perm = encoding & MACH_O_UNWIND_X86_64_FRAMELESS_REG_PERMUTATION; |
| 1722 | |
| 1723 | if (mode == MACH_O_UNWIND_X86_64_MODE_STACK_IMMD) |
| 1724 | printf (" size: 0x%03x", stack_size * sz); |
| 1725 | else |
| 1726 | { |
| 1727 | unsigned int stack_adj; |
| 1728 | |
| 1729 | stack_adj = |
| 1730 | (encoding & MACH_O_UNWIND_X86_64_FRAMELESS_STACK_ADJUST) >> 13; |
| 1731 | printf (" size at 0x%03x + 0x%02x", stack_size, stack_adj * sz); |
| 1732 | } |
| 1733 | /* Registers are coded using arithmetic compression: the register |
| 1734 | is indexed in range 0-6, the second in range 0-5, the third in |
| 1735 | range 0-4, etc. Already used registers are removed in next |
| 1736 | ranges. */ |
| 1737 | #define DO_PERM(R, NUM) R = reg_perm / NUM; reg_perm -= R * NUM |
| 1738 | switch (reg_count) |
| 1739 | { |
| 1740 | case 6: |
| 1741 | case 5: |
| 1742 | DO_PERM (regs[0], 120); |
| 1743 | DO_PERM (regs[1], 24); |
| 1744 | DO_PERM (regs[2], 6); |
| 1745 | DO_PERM (regs[3], 2); |
| 1746 | DO_PERM (regs[4], 1); |
| 1747 | regs[5] = 0; /* Not used if reg_count = 5. */ |
| 1748 | break; |
| 1749 | case 4: |
| 1750 | DO_PERM (regs[0], 60); |
| 1751 | DO_PERM (regs[1], 12); |
| 1752 | DO_PERM (regs[2], 3); |
| 1753 | DO_PERM (regs[3], 1); |
| 1754 | break; |
| 1755 | case 3: |
| 1756 | DO_PERM (regs[0], 20); |
| 1757 | DO_PERM (regs[1], 4); |
| 1758 | DO_PERM (regs[2], 1); |
| 1759 | break; |
| 1760 | case 2: |
| 1761 | DO_PERM (regs[0], 5); |
| 1762 | DO_PERM (regs[1], 1); |
| 1763 | break; |
| 1764 | case 1: |
| 1765 | DO_PERM (regs[0], 1); |
| 1766 | break; |
| 1767 | case 0: |
| 1768 | break; |
| 1769 | default: |
| 1770 | printf (" [bad reg count]"); |
| 1771 | return; |
| 1772 | } |
| 1773 | #undef DO_PERM |
| 1774 | /* Renumber. */ |
| 1775 | for (i = reg_count - 1; i >= 0; i--) |
| 1776 | { |
| 1777 | unsigned int inc = 1; |
| 1778 | for (j = 0; j < i; j++) |
| 1779 | if (regs[i] >= regs[j]) |
| 1780 | inc++; |
| 1781 | regs[i] += inc; |
| 1782 | } |
| 1783 | /* Display. */ |
| 1784 | for (i = 0; i < (int) reg_count; i++) |
| 1785 | printf (" %s", regs_name[regs[i]]); |
| 1786 | } |
| 1787 | break; |
| 1788 | case MACH_O_UNWIND_X86_64_MODE_DWARF: |
| 1789 | printf (" Dwarf offset: 0x%06x", |
| 1790 | encoding & MACH_O_UNWIND_X86_64_DWARF_SECTION_OFFSET); |
| 1791 | break; |
| 1792 | default: |
| 1793 | printf (" [unhandled mode]"); |
| 1794 | break; |
| 1795 | } |
| 1796 | } |
| 1797 | |
| 1798 | /* Dump arm64 compact unwind entries. */ |
| 1799 | |
| 1800 | static void |
| 1801 | dump_unwind_encoding_arm64 (unsigned int encoding) |
| 1802 | { |
| 1803 | switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK) |
| 1804 | { |
| 1805 | case MACH_O_UNWIND_ARM64_MODE_FRAMELESS: |
| 1806 | printf (" frameless"); |
| 1807 | break; |
| 1808 | case MACH_O_UNWIND_ARM64_MODE_DWARF: |
| 1809 | printf (" Dwarf offset: 0x%06x", |
| 1810 | encoding & MACH_O_UNWIND_ARM64_DWARF_SECTION_OFFSET); |
| 1811 | return; |
| 1812 | case MACH_O_UNWIND_ARM64_MODE_FRAME: |
| 1813 | printf (" frame"); |
| 1814 | break; |
| 1815 | default: |
| 1816 | printf (" [unhandled mode]"); |
| 1817 | return; |
| 1818 | } |
| 1819 | switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK) |
| 1820 | { |
| 1821 | case MACH_O_UNWIND_ARM64_MODE_FRAMELESS: |
| 1822 | case MACH_O_UNWIND_ARM64_MODE_FRAME: |
| 1823 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_X19_X20_PAIR) |
| 1824 | printf (" x19-x20"); |
| 1825 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_X21_X22_PAIR) |
| 1826 | printf (" x21-x22"); |
| 1827 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_X23_X24_PAIR) |
| 1828 | printf (" x23-x24"); |
| 1829 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_X25_X26_PAIR) |
| 1830 | printf (" x25-x26"); |
| 1831 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_X27_X28_PAIR) |
| 1832 | printf (" x27-x28"); |
| 1833 | break; |
| 1834 | } |
| 1835 | switch (encoding & MACH_O_UNWIND_ARM64_MODE_MASK) |
| 1836 | { |
| 1837 | case MACH_O_UNWIND_ARM64_MODE_FRAME: |
| 1838 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_D8_D9_PAIR) |
| 1839 | printf (" d8-d9"); |
| 1840 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_D10_D11_PAIR) |
| 1841 | printf (" d10-d11"); |
| 1842 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_D12_D13_PAIR) |
| 1843 | printf (" d12-d13"); |
| 1844 | if (encoding & MACH_O_UNWIND_ARM64_FRAME_D14_D15_PAIR) |
| 1845 | printf (" d14-d15"); |
| 1846 | break; |
| 1847 | case MACH_O_UNWIND_ARM64_MODE_FRAMELESS: |
| 1848 | printf (" size: %u", |
| 1849 | (encoding & MACH_O_UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK) >> 8); |
| 1850 | break; |
| 1851 | } |
| 1852 | } |
| 1853 | |
| 1854 | static void |
| 1855 | dump_unwind_encoding (bfd_mach_o_data_struct *mdata, unsigned int encoding) |
| 1856 | { |
| 1857 | printf ("0x%08x", encoding); |
| 1858 | if (encoding == 0) |
| 1859 | return; |
| 1860 | |
| 1861 | switch (mdata->header.cputype) |
| 1862 | { |
| 1863 | case BFD_MACH_O_CPU_TYPE_X86_64: |
| 1864 | dump_unwind_encoding_x86 (encoding, 8, unwind_x86_64_regs); |
| 1865 | break; |
| 1866 | case BFD_MACH_O_CPU_TYPE_I386: |
| 1867 | dump_unwind_encoding_x86 (encoding, 4, unwind_x86_regs); |
| 1868 | break; |
| 1869 | case BFD_MACH_O_CPU_TYPE_ARM64: |
| 1870 | dump_unwind_encoding_arm64 (encoding); |
| 1871 | break; |
| 1872 | default: |
| 1873 | printf (" [unhandled cpu]"); |
| 1874 | break; |
| 1875 | } |
| 1876 | if (encoding & MACH_O_UNWIND_HAS_LSDA) |
| 1877 | printf (" LSDA"); |
| 1878 | if (encoding & MACH_O_UNWIND_PERSONALITY_MASK) |
| 1879 | printf (" PERS(%u)", |
| 1880 | ((encoding & MACH_O_UNWIND_PERSONALITY_MASK) |
| 1881 | >> MACH_O_UNWIND_PERSONALITY_SHIFT)); |
| 1882 | } |
| 1883 | |
| 1884 | static void |
| 1885 | dump_obj_compact_unwind (bfd *abfd, |
| 1886 | const unsigned char *content, bfd_size_type size) |
| 1887 | { |
| 1888 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1889 | int is_64 = mdata->header.version == 2; |
| 1890 | const unsigned char *p; |
| 1891 | |
| 1892 | printf ("Compact unwind info:\n"); |
| 1893 | printf (" start length personality lsda\n"); |
| 1894 | |
| 1895 | if (is_64) |
| 1896 | { |
| 1897 | struct mach_o_compact_unwind_64 *e = |
| 1898 | (struct mach_o_compact_unwind_64 *) content; |
| 1899 | |
| 1900 | for (p = content; p < content + size; p += sizeof (*e)) |
| 1901 | { |
| 1902 | e = (struct mach_o_compact_unwind_64 *) p; |
| 1903 | |
| 1904 | putchar (' '); |
| 1905 | printf_uint64 (bfd_get_64 (abfd, e->start)); |
| 1906 | printf (" %08lx", bfd_get_32 (abfd, e->length)); |
| 1907 | putchar (' '); |
| 1908 | printf_uint64 (bfd_get_64 (abfd, e->personality)); |
| 1909 | putchar (' '); |
| 1910 | printf_uint64 (bfd_get_64 (abfd, e->lsda)); |
| 1911 | putchar ('\n'); |
| 1912 | |
| 1913 | printf (" encoding: "); |
| 1914 | dump_unwind_encoding (mdata, bfd_get_32 (abfd, e->encoding)); |
| 1915 | putchar ('\n'); |
| 1916 | } |
| 1917 | } |
| 1918 | else |
| 1919 | { |
| 1920 | printf ("unhandled\n"); |
| 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | static void |
| 1925 | dump_exe_compact_unwind (bfd *abfd, |
| 1926 | const unsigned char *content, bfd_size_type size) |
| 1927 | { |
| 1928 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 1929 | struct mach_o_unwind_info_header *hdr; |
| 1930 | unsigned int version; |
| 1931 | unsigned int encodings_offset; |
| 1932 | unsigned int encodings_count; |
| 1933 | unsigned int personality_offset; |
| 1934 | unsigned int personality_count; |
| 1935 | unsigned int index_offset; |
| 1936 | unsigned int index_count; |
| 1937 | struct mach_o_unwind_index_entry *index_entry; |
| 1938 | unsigned int i; |
| 1939 | |
| 1940 | /* The header. */ |
| 1941 | printf ("Compact unwind info:\n"); |
| 1942 | |
| 1943 | hdr = (struct mach_o_unwind_info_header *) content; |
| 1944 | if (size < sizeof (*hdr)) |
| 1945 | { |
| 1946 | printf (" truncated!\n"); |
| 1947 | return; |
| 1948 | } |
| 1949 | |
| 1950 | version = bfd_get_32 (abfd, hdr->version); |
| 1951 | if (version != MACH_O_UNWIND_SECTION_VERSION) |
| 1952 | { |
| 1953 | printf (" unknown version: %u\n", version); |
| 1954 | return; |
| 1955 | } |
| 1956 | encodings_offset = bfd_get_32 (abfd, hdr->encodings_array_offset); |
| 1957 | encodings_count = bfd_get_32 (abfd, hdr->encodings_array_count); |
| 1958 | personality_offset = bfd_get_32 (abfd, hdr->personality_array_offset); |
| 1959 | personality_count = bfd_get_32 (abfd, hdr->personality_array_count); |
| 1960 | index_offset = bfd_get_32 (abfd, hdr->index_offset); |
| 1961 | index_count = bfd_get_32 (abfd, hdr->index_count); |
| 1962 | printf (" %u encodings, %u personalities, %u level-1 indexes:\n", |
| 1963 | encodings_count, personality_count, index_count); |
| 1964 | |
| 1965 | /* Personality. */ |
| 1966 | if (personality_count > 0) |
| 1967 | { |
| 1968 | const unsigned char *pers = content + personality_offset; |
| 1969 | |
| 1970 | printf (" personalities\n"); |
| 1971 | for (i = 0; i < personality_count; i++) |
| 1972 | printf (" %u: 0x%08x\n", i, |
| 1973 | (unsigned) bfd_get_32 (abfd, pers + 4 * i)); |
| 1974 | } |
| 1975 | |
| 1976 | /* Level-1 index. */ |
| 1977 | printf (" idx function level2 off lsda off\n"); |
| 1978 | |
| 1979 | index_entry = (struct mach_o_unwind_index_entry *) (content + index_offset); |
| 1980 | for (i = 0; i < index_count; i++) |
| 1981 | { |
| 1982 | unsigned int func_offset; |
| 1983 | unsigned int level2_offset; |
| 1984 | unsigned int lsda_offset; |
| 1985 | |
| 1986 | func_offset = bfd_get_32 (abfd, index_entry->function_offset); |
| 1987 | level2_offset = bfd_get_32 (abfd, index_entry->second_level_offset); |
| 1988 | lsda_offset = bfd_get_32 (abfd, index_entry->lsda_index_offset); |
| 1989 | printf (" %3u 0x%08x 0x%08x 0x%08x\n", |
| 1990 | i, func_offset, level2_offset, lsda_offset); |
| 1991 | index_entry++; |
| 1992 | } |
| 1993 | |
| 1994 | /* Level-1 index. */ |
| 1995 | index_entry = (struct mach_o_unwind_index_entry *) (content + index_offset); |
| 1996 | for (i = 0; i < index_count; i++) |
| 1997 | { |
| 1998 | unsigned int func_offset; |
| 1999 | unsigned int level2_offset; |
| 2000 | const unsigned char *level2; |
| 2001 | unsigned int kind; |
| 2002 | |
| 2003 | func_offset = bfd_get_32 (abfd, index_entry->function_offset); |
| 2004 | level2_offset = bfd_get_32 (abfd, index_entry->second_level_offset); |
| 2005 | |
| 2006 | /* No level-2 for this index (should be the last index). */ |
| 2007 | if (level2_offset == 0) |
| 2008 | continue; |
| 2009 | |
| 2010 | level2 = content + level2_offset; |
| 2011 | kind = bfd_get_32 (abfd, level2); |
| 2012 | switch (kind) |
| 2013 | { |
| 2014 | case MACH_O_UNWIND_SECOND_LEVEL_COMPRESSED: |
| 2015 | { |
| 2016 | struct mach_o_unwind_compressed_second_level_page_header *l2; |
| 2017 | unsigned int entry_offset; |
| 2018 | unsigned int entry_count; |
| 2019 | unsigned int l2_encodings_offset; |
| 2020 | unsigned int l2_encodings_count; |
| 2021 | const unsigned char *en; |
| 2022 | unsigned int j; |
| 2023 | |
| 2024 | l2 = (struct mach_o_unwind_compressed_second_level_page_header *) |
| 2025 | level2; |
| 2026 | entry_offset = bfd_get_16 (abfd, l2->entry_page_offset); |
| 2027 | entry_count = bfd_get_16 (abfd, l2->entry_count); |
| 2028 | l2_encodings_offset = bfd_get_16 (abfd, l2->encodings_offset); |
| 2029 | l2_encodings_count = bfd_get_16 (abfd, l2->encodings_count); |
| 2030 | |
| 2031 | printf (" index %2u: compressed second level: " |
| 2032 | "%u entries, %u encodings (at 0x%08x)\n", |
| 2033 | i, entry_count, l2_encodings_count, l2_encodings_offset); |
| 2034 | printf (" # function eidx encoding\n"); |
| 2035 | |
| 2036 | en = level2 + entry_offset; |
| 2037 | for (j = 0; j < entry_count; j++) |
| 2038 | { |
| 2039 | unsigned int entry; |
| 2040 | unsigned int en_func; |
| 2041 | unsigned int enc_idx; |
| 2042 | unsigned int encoding; |
| 2043 | const unsigned char *enc_addr; |
| 2044 | |
| 2045 | entry = bfd_get_32 (abfd, en); |
| 2046 | en_func = |
| 2047 | MACH_O_UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET (entry); |
| 2048 | enc_idx = |
| 2049 | MACH_O_UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX (entry); |
| 2050 | if (enc_idx < encodings_count) |
| 2051 | enc_addr = content + encodings_offset |
| 2052 | + 4 * enc_idx; |
| 2053 | else |
| 2054 | enc_addr = level2 + l2_encodings_offset |
| 2055 | + 4 * (enc_idx - encodings_count); |
| 2056 | encoding = bfd_get_32 (abfd, enc_addr); |
| 2057 | |
| 2058 | printf (" %4u 0x%08x [%3u] ", j, |
| 2059 | func_offset + en_func, enc_idx); |
| 2060 | dump_unwind_encoding (mdata, encoding); |
| 2061 | putchar ('\n'); |
| 2062 | |
| 2063 | en += 4; |
| 2064 | } |
| 2065 | } |
| 2066 | break; |
| 2067 | |
| 2068 | case MACH_O_UNWIND_SECOND_LEVEL_REGULAR: |
| 2069 | { |
| 2070 | struct mach_o_unwind_regular_second_level_page_header *l2; |
| 2071 | struct mach_o_unwind_regular_second_level_entry *en; |
| 2072 | unsigned int entry_offset; |
| 2073 | unsigned int entry_count; |
| 2074 | unsigned int j; |
| 2075 | |
| 2076 | l2 = (struct mach_o_unwind_regular_second_level_page_header *) |
| 2077 | level2; |
| 2078 | |
| 2079 | entry_offset = bfd_get_16 (abfd, l2->entry_page_offset); |
| 2080 | entry_count = bfd_get_16 (abfd, l2->entry_count); |
| 2081 | printf (" index %2u: regular level 2 at 0x%04x, %u entries\n", |
| 2082 | i, entry_offset, entry_count); |
| 2083 | printf (" # function encoding\n"); |
| 2084 | |
| 2085 | en = (struct mach_o_unwind_regular_second_level_entry *) |
| 2086 | (level2 + entry_offset); |
| 2087 | for (j = 0; j < entry_count; j++) |
| 2088 | { |
| 2089 | unsigned int en_func; |
| 2090 | unsigned int encoding; |
| 2091 | |
| 2092 | en_func = bfd_get_32 (abfd, en->function_offset); |
| 2093 | encoding = bfd_get_32 (abfd, en->encoding); |
| 2094 | printf (" %-4u 0x%08x ", j, en_func); |
| 2095 | dump_unwind_encoding (mdata, encoding); |
| 2096 | putchar ('\n'); |
| 2097 | en++; |
| 2098 | } |
| 2099 | } |
| 2100 | break; |
| 2101 | |
| 2102 | default: |
| 2103 | printf (" index %2u: unhandled second level format (%u)\n", |
| 2104 | i, kind); |
| 2105 | break; |
| 2106 | } |
| 2107 | |
| 2108 | { |
| 2109 | struct mach_o_unwind_lsda_index_entry *lsda; |
| 2110 | unsigned int lsda_offset; |
| 2111 | unsigned int next_lsda_offset; |
| 2112 | unsigned int nbr_lsda; |
| 2113 | unsigned int j; |
| 2114 | |
| 2115 | lsda_offset = bfd_get_32 (abfd, index_entry->lsda_index_offset); |
| 2116 | next_lsda_offset = bfd_get_32 (abfd, index_entry[1].lsda_index_offset); |
| 2117 | lsda = (struct mach_o_unwind_lsda_index_entry *) |
| 2118 | (content + lsda_offset); |
| 2119 | nbr_lsda = (next_lsda_offset - lsda_offset) / sizeof (*lsda); |
| 2120 | for (j = 0; j < nbr_lsda; j++) |
| 2121 | { |
| 2122 | printf (" lsda %3u: function 0x%08x lsda 0x%08x\n", |
| 2123 | j, (unsigned int) bfd_get_32 (abfd, lsda->function_offset), |
| 2124 | (unsigned int) bfd_get_32 (abfd, lsda->lsda_offset)); |
| 2125 | lsda++; |
| 2126 | } |
| 2127 | } |
| 2128 | index_entry++; |
| 2129 | } |
| 2130 | } |
| 2131 | |
| 2132 | static void |
| 2133 | dump_section_content (bfd *abfd, |
| 2134 | const char *segname, const char *sectname, |
| 2135 | void (*dump)(bfd*, const unsigned char*, bfd_size_type)) |
| 2136 | { |
| 2137 | bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); |
| 2138 | bfd_mach_o_load_command *cmd; |
| 2139 | |
| 2140 | for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next) |
| 2141 | { |
| 2142 | if (cmd->type == BFD_MACH_O_LC_SEGMENT |
| 2143 | || cmd->type == BFD_MACH_O_LC_SEGMENT_64) |
| 2144 | { |
| 2145 | bfd_mach_o_segment_command *seg = &cmd->command.segment; |
| 2146 | bfd_mach_o_section *sec; |
| 2147 | for (sec = seg->sect_head; sec != NULL; sec = sec->next) |
| 2148 | if (strcmp (sec->segname, segname) == 0 |
| 2149 | && strcmp (sec->sectname, sectname) == 0) |
| 2150 | { |
| 2151 | bfd_size_type size; |
| 2152 | asection *bfdsec = sec->bfdsection; |
| 2153 | unsigned char *content; |
| 2154 | |
| 2155 | size = bfd_get_section_size (bfdsec); |
| 2156 | content = (unsigned char *) xmalloc (size); |
| 2157 | bfd_get_section_contents (abfd, bfdsec, content, 0, size); |
| 2158 | |
| 2159 | (*dump)(abfd, content, size); |
| 2160 | |
| 2161 | free (content); |
| 2162 | } |
| 2163 | } |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | /* Dump ABFD (according to the options[] array). */ |
| 2168 | |
| 2169 | static void |
| 2170 | mach_o_dump (bfd *abfd) |
| 2171 | { |
| 2172 | if (options[OPT_HEADER].selected) |
| 2173 | dump_header (abfd); |
| 2174 | if (options[OPT_SECTION].selected) |
| 2175 | dump_load_commands (abfd, BFD_MACH_O_LC_SEGMENT, BFD_MACH_O_LC_SEGMENT_64); |
| 2176 | if (options[OPT_MAP].selected) |
| 2177 | dump_section_map (abfd); |
| 2178 | if (options[OPT_LOAD].selected) |
| 2179 | dump_load_commands (abfd, 0, 0); |
| 2180 | if (options[OPT_DYSYMTAB].selected) |
| 2181 | dump_load_commands (abfd, BFD_MACH_O_LC_DYSYMTAB, 0); |
| 2182 | if (options[OPT_CODESIGN].selected) |
| 2183 | dump_load_commands (abfd, BFD_MACH_O_LC_CODE_SIGNATURE, 0); |
| 2184 | if (options[OPT_SEG_SPLIT_INFO].selected) |
| 2185 | dump_load_commands (abfd, BFD_MACH_O_LC_SEGMENT_SPLIT_INFO, 0); |
| 2186 | if (options[OPT_FUNCTION_STARTS].selected) |
| 2187 | dump_load_commands (abfd, BFD_MACH_O_LC_FUNCTION_STARTS, 0); |
| 2188 | if (options[OPT_DATA_IN_CODE].selected) |
| 2189 | dump_load_commands (abfd, BFD_MACH_O_LC_DATA_IN_CODE, 0); |
| 2190 | if (options[OPT_TWOLEVEL_HINTS].selected) |
| 2191 | dump_load_commands (abfd, BFD_MACH_O_LC_TWOLEVEL_HINTS, 0); |
| 2192 | if (options[OPT_COMPACT_UNWIND].selected) |
| 2193 | { |
| 2194 | dump_section_content (abfd, "__LD", "__compact_unwind", |
| 2195 | dump_obj_compact_unwind); |
| 2196 | dump_section_content (abfd, "__TEXT", "__unwind_info", |
| 2197 | dump_exe_compact_unwind); |
| 2198 | } |
| 2199 | if (options[OPT_DYLD_INFO].selected) |
| 2200 | dump_load_commands (abfd, BFD_MACH_O_LC_DYLD_INFO, 0); |
| 2201 | } |
| 2202 | |
| 2203 | /* Vector for Mach-O. */ |
| 2204 | |
| 2205 | const struct objdump_private_desc objdump_private_desc_mach_o = |
| 2206 | { |
| 2207 | mach_o_help, |
| 2208 | mach_o_filter, |
| 2209 | mach_o_dump, |
| 2210 | options |
| 2211 | }; |