1 /* Darwin support for GDB, the GNU debugger.
2 Copyright (C) 2008-2018 Free Software Foundation, Inc.
4 Contributed by AdaCore.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
31 #include "aout/stab_gnu.h"
34 #include "complaints.h"
38 /* If non-zero displays debugging message. */
39 static unsigned int mach_o_debug_level = 0;
41 /* Dwarf debugging information are never in the final executable. They stay
42 in object files and the executable contains the list of object files read
44 Each time an oso (other source) is found in the executable, the reader
45 creates such a structure. They are read after the processing of the
50 /* Object file name. Can also be a member name. */
53 /* Associated time stamp. */
56 /* Stab symbols range for this OSO. */
60 /* Number of interesting stabs in the range. */
61 unsigned int nbr_syms;
65 /* Vector of object files to be read after the executable. */
69 macho_new_init (struct objfile *objfile)
74 macho_symfile_init (struct objfile *objfile)
76 objfile->flags |= OBJF_REORDERED;
79 /* Add a new OSO to the vector of OSO to load. */
82 macho_register_oso (VEC (oso_el) **oso_vector_ptr,
83 struct objfile *objfile,
84 asymbol **oso_sym, asymbol **end_sym,
85 unsigned int nbr_syms)
89 el.name = (*oso_sym)->name;
90 el.mtime = (*oso_sym)->value;
93 el.nbr_syms = nbr_syms;
94 VEC_safe_push (oso_el, *oso_vector_ptr, &el);
97 /* Add symbol SYM to the minimal symbol table of OBJFILE. */
100 macho_symtab_add_minsym (minimal_symbol_reader &reader,
101 struct objfile *objfile, const asymbol *sym)
103 if (sym->name == NULL || *sym->name == '\0')
105 /* Skip names that don't exist (shouldn't happen), or names
106 that are null strings (may happen). */
110 if (sym->flags & (BSF_GLOBAL | BSF_LOCAL | BSF_WEAK))
113 enum minimal_symbol_type ms_type;
115 /* Bfd symbols are section relative. */
116 symaddr = sym->value + sym->section->vma;
118 if (sym->section == bfd_abs_section_ptr)
120 else if (sym->section->flags & SEC_CODE)
122 if (sym->flags & (BSF_GLOBAL | BSF_WEAK))
125 ms_type = mst_file_text;
127 else if (sym->section->flags & SEC_ALLOC)
129 if (sym->flags & (BSF_GLOBAL | BSF_WEAK))
131 if (sym->section->flags & SEC_LOAD)
136 else if (sym->flags & BSF_LOCAL)
138 /* Not a special stabs-in-elf symbol, do regular
139 symbol processing. */
140 if (sym->section->flags & SEC_LOAD)
141 ms_type = mst_file_data;
143 ms_type = mst_file_bss;
146 ms_type = mst_unknown;
149 return; /* Skip this symbol. */
151 reader.record_with_info (sym->name, symaddr, ms_type,
152 gdb_bfd_section_index (objfile->obfd,
157 /* Build the minimal symbol table from SYMBOL_TABLE of length
158 NUMBER_OF_SYMBOLS for OBJFILE. Registers OSO filenames found. */
161 macho_symtab_read (minimal_symbol_reader &reader,
162 struct objfile *objfile,
163 long number_of_symbols, asymbol **symbol_table,
164 VEC (oso_el) **oso_vector_ptr)
167 const asymbol *file_so = NULL;
168 asymbol **oso_file = NULL;
169 unsigned int nbr_syms = 0;
171 /* Current state while reading stabs. */
174 /* Not within an SO part. Only non-debugging symbols should be present,
175 and will be added to the minimal symbols table. */
178 /* First SO read. Introduce an SO section, and may be followed by a second
179 SO. The SO section should contain onl debugging symbols. */
182 /* Second non-null SO found, just after the first one. Means that the first
183 is in fact a directory name. */
186 /* Non-null OSO found. Debugging info are DWARF in this OSO file. */
192 for (i = 0; i < number_of_symbols; i++)
194 const asymbol *sym = symbol_table[i];
195 bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
200 if (mach_o_sym->n_type == N_SO)
202 /* Start of object stab. */
203 if (sym->name == NULL || sym->name[0] == 0)
205 /* Unexpected empty N_SO. */
206 complaint (&symfile_complaints,
207 _("Unexpected empty N_SO stab"));
215 else if (sym->flags & BSF_DEBUGGING)
217 if (mach_o_sym->n_type == N_OPT)
219 /* No complaint for OPT. */
223 /* Debugging symbols are not expected here. */
224 complaint (&symfile_complaints,
225 _("%s: Unexpected debug stab outside SO markers"),
226 objfile_name (objfile));
230 /* Non-debugging symbols go to the minimal symbol table. */
231 macho_symtab_add_minsym (reader, objfile, sym);
237 if (mach_o_sym->n_type == N_SO)
239 if (sym->name == NULL || sym->name[0] == 0)
241 /* Unexpected empty N_SO. */
242 complaint (&symfile_complaints, _("Empty SO section"));
245 else if (state == S_FIRST_SO)
247 /* Second SO stab for the file name. */
252 complaint (&symfile_complaints, _("Three SO in a raw"));
254 else if (mach_o_sym->n_type == N_OSO)
256 if (sym->name == NULL || sym->name[0] == 0)
258 /* Empty OSO. Means that this file was compiled with
261 warning (_("stabs debugging not supported for %s"),
266 /* Non-empty OSO for a Dwarf file. */
267 oso_file = symbol_table + i;
269 state = S_DWARF_FILE;
273 complaint (&symfile_complaints,
274 _("Unexpected stab after SO"));
279 if (mach_o_sym->n_type == N_SO)
281 if (sym->name == NULL || sym->name[0] == 0)
284 if (state == S_DWARF_FILE)
285 macho_register_oso (oso_vector_ptr, objfile,
286 oso_file, symbol_table + i,
292 complaint (&symfile_complaints, _("Missing nul SO"));
297 else if (sym->flags & BSF_DEBUGGING)
299 if (state == S_STAB_FILE)
301 /* FIXME: to be implemented. */
305 switch (mach_o_sym->n_type)
308 if (sym->name == NULL || sym->name[0] == 0)
312 /* Interesting symbol. */
320 complaint (&symfile_complaints,
321 _("unhandled stab for dwarf OSO file"));
327 complaint (&symfile_complaints,
328 _("non-debugging symbol within SO"));
333 if (state != S_NO_SO)
334 complaint (&symfile_complaints, _("missing nul SO"));
337 /* If NAME describes an archive member (ie: ARCHIVE '(' MEMBER ')'),
338 returns the length of the archive name.
339 Returns -1 otherwise. */
342 get_archive_prefix_len (const char *name)
345 int name_len = strlen (name);
347 if (name_len == 0 || name[name_len - 1] != ')')
350 lparen = strrchr (name, '(');
351 if (lparen == NULL || lparen == name)
353 return lparen - name;
356 /* Compare function to qsort OSOs, so that members of a library are
360 oso_el_compare_name (const void *vl, const void *vr)
362 const oso_el *l = (const oso_el *)vl;
363 const oso_el *r = (const oso_el *)vr;
365 return strcmp (l->name, r->name);
368 /* Hash table entry structure for the stabs symbols in the main object file.
369 This is used to speed up lookup for symbols in the OSO. */
371 struct macho_sym_hash_entry
373 struct bfd_hash_entry base;
377 /* Routine to create an entry in the hash table. */
379 static struct bfd_hash_entry *
380 macho_sym_hash_newfunc (struct bfd_hash_entry *entry,
381 struct bfd_hash_table *table,
384 struct macho_sym_hash_entry *ret = (struct macho_sym_hash_entry *) entry;
386 /* Allocate the structure if it has not already been allocated by a
389 ret = (struct macho_sym_hash_entry *) bfd_hash_allocate (table,
394 /* Call the allocation method of the superclass. */
395 ret = (struct macho_sym_hash_entry *)
396 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string);
400 /* Initialize the local fields. */
404 return (struct bfd_hash_entry *) ret;
407 /* Get the value of SYM from the minimal symtab of MAIN_OBJFILE. This is used
408 to get the value of global and common symbols. */
411 macho_resolve_oso_sym_with_minsym (struct objfile *main_objfile, asymbol *sym)
413 /* For common symbol and global symbols, use the min symtab. */
414 struct bound_minimal_symbol msym;
415 const char *name = sym->name;
417 if (name[0] == bfd_get_symbol_leading_char (main_objfile->obfd))
419 msym = lookup_minimal_symbol (name, NULL, main_objfile);
420 if (msym.minsym == NULL)
422 warning (_("can't find symbol '%s' in minsymtab"), name);
426 return BMSYMBOL_VALUE_ADDRESS (msym);
429 /* Add oso file OSO/ABFD as a symbol file. */
432 macho_add_oso_symfile (oso_el *oso, const gdb_bfd_ref_ptr &abfd,
434 struct objfile *main_objfile,
435 symfile_add_flags symfile_flags)
439 asymbol **symbol_table;
441 struct bfd_hash_table table;
444 /* Per section flag to mark which section have been rebased. */
445 unsigned char *sections_rebased;
447 if (mach_o_debug_level > 0)
449 (_("Loading debugging symbols from oso: %s\n"), oso->name);
451 if (!bfd_check_format (abfd.get (), bfd_object))
453 warning (_("`%s': can't read symbols: %s."), oso->name,
454 bfd_errmsg (bfd_get_error ()));
458 if (abfd->my_archive == NULL && oso->mtime != bfd_get_mtime (abfd.get ()))
460 warning (_("`%s': file time stamp mismatch."), oso->name);
464 if (!bfd_hash_table_init_n (&table, macho_sym_hash_newfunc,
465 sizeof (struct macho_sym_hash_entry),
468 warning (_("`%s': can't create hash table"), oso->name);
472 bfd_set_cacheable (abfd.get (), 1);
474 /* Read symbols table. */
475 storage = bfd_get_symtab_upper_bound (abfd.get ());
476 symbol_table = (asymbol **) xmalloc (storage);
477 bfd_canonicalize_symtab (abfd.get (), symbol_table);
479 /* Init section flags. */
480 nbr_sections = bfd_count_sections (abfd.get ());
481 sections_rebased = (unsigned char *) alloca (nbr_sections);
482 for (i = 0; i < nbr_sections; i++)
483 sections_rebased[i] = 0;
485 /* Put symbols for the OSO file in the hash table. */
486 for (symp = oso->oso_sym; symp != oso->end_sym; symp++)
488 const asymbol *sym = *symp;
489 bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
491 switch (mach_o_sym->n_type)
499 if (sym->name == NULL || sym->name[0] == 0)
510 struct macho_sym_hash_entry *ent;
512 ent = (struct macho_sym_hash_entry *)
513 bfd_hash_lookup (&table, sym->name, TRUE, FALSE);
514 if (ent->sym != NULL)
515 complaint (&symfile_complaints,
516 _("Duplicated symbol %s in symbol table"), sym->name);
519 if (mach_o_debug_level > 4)
521 struct gdbarch *arch = get_objfile_arch (main_objfile);
523 (_("Adding symbol %s (addr: %s)\n"),
524 sym->name, paddress (arch, sym->value));
531 /* Relocate symbols of the OSO. */
532 for (i = 0; symbol_table[i]; i++)
534 asymbol *sym = symbol_table[i];
535 bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
537 if (mach_o_sym->n_type & BFD_MACH_O_N_STAB)
539 if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF
542 /* For common symbol use the min symtab and modify the OSO
546 res = macho_resolve_oso_sym_with_minsym (main_objfile, sym);
549 sym->section = bfd_com_section_ptr;
553 else if ((mach_o_sym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
556 asection *sec = sym->section;
557 bfd_mach_o_section *msec;
558 unsigned int sec_type;
560 /* Skip buggy ones. */
561 if (sec == NULL || sections_rebased[sec->index] != 0)
564 /* Only consider regular, non-debugging sections. */
565 msec = bfd_mach_o_get_mach_o_section (sec);
566 sec_type = msec->flags & BFD_MACH_O_SECTION_TYPE_MASK;
567 if ((sec_type == BFD_MACH_O_S_REGULAR
568 || sec_type == BFD_MACH_O_S_ZEROFILL)
569 && (msec->flags & BFD_MACH_O_S_ATTR_DEBUG) == 0)
573 if ((mach_o_sym->n_type & BFD_MACH_O_N_EXT) != 0)
575 /* Use the min symtab for global symbols. */
576 addr = macho_resolve_oso_sym_with_minsym (main_objfile, sym);
580 struct macho_sym_hash_entry *ent;
582 ent = (struct macho_sym_hash_entry *)
583 bfd_hash_lookup (&table, sym->name, FALSE, FALSE);
585 addr = bfd_asymbol_value (ent->sym);
588 /* Adjust the section. */
591 CORE_ADDR res = addr - sym->value;
593 if (mach_o_debug_level > 3)
595 struct gdbarch *arch = get_objfile_arch (main_objfile);
597 (_("resolve sect %s with %s (set to %s)\n"),
598 sec->name, sym->name,
599 paddress (arch, res));
601 bfd_set_section_vma (abfd.get (), sec, res);
602 sections_rebased[sec->index] = 1;
607 /* Mark the section as never rebased. */
608 sections_rebased[sec->index] = 2;
613 bfd_hash_table_free (&table);
615 /* We need to clear SYMFILE_MAINLINE to avoid interractive question
616 from symfile.c:symbol_file_add_with_addrs_or_offsets. */
617 symbol_file_add_from_bfd
618 (abfd.get (), name, symfile_flags & ~(SYMFILE_MAINLINE | SYMFILE_VERBOSE),
620 main_objfile->flags & (OBJF_REORDERED | OBJF_SHARED
621 | OBJF_READNOW | OBJF_USERLOADED),
625 /* Read symbols from the vector of oso files.
627 Note that this function sorts OSO_VECTOR_PTR. */
630 macho_symfile_read_all_oso (VEC (oso_el) **oso_vector_ptr,
631 struct objfile *main_objfile,
632 symfile_add_flags symfile_flags)
635 VEC (oso_el) *vec = *oso_vector_ptr;
638 /* Sort oso by name so that files from libraries are gathered. */
639 qsort (VEC_address (oso_el, vec), VEC_length (oso_el, vec),
640 sizeof (oso_el), oso_el_compare_name);
642 for (ix = 0; VEC_iterate (oso_el, vec, ix, oso);)
646 /* Check if this is a library name. */
647 pfx_len = get_archive_prefix_len (oso->name);
654 std::string archive_name (oso->name, pfx_len);
656 /* Compute number of oso for this archive. */
658 VEC_iterate (oso_el, vec, last_ix, oso2); last_ix++)
660 if (strncmp (oso2->name, archive_name.c_str (), pfx_len) != 0)
664 /* Open the archive and check the format. */
665 gdb_bfd_ref_ptr archive_bfd (gdb_bfd_open (archive_name.c_str (),
667 if (archive_bfd == NULL)
669 warning (_("Could not open OSO archive file \"%s\""),
670 archive_name.c_str ());
674 if (!bfd_check_format (archive_bfd.get (), bfd_archive))
676 warning (_("OSO archive file \"%s\" not an archive."),
677 archive_name.c_str ());
682 gdb_bfd_ref_ptr member_bfd
683 (gdb_bfd_openr_next_archived_file (archive_bfd.get (), NULL));
685 if (member_bfd == NULL)
687 warning (_("Could not read archive members out of "
688 "OSO archive \"%s\""), archive_name.c_str ());
693 /* Load all oso in this library. */
694 while (member_bfd != NULL)
696 const char *member_name = member_bfd->filename;
697 int member_len = strlen (member_name);
699 /* If this member is referenced, add it as a symfile. */
700 for (ix2 = ix; ix2 < last_ix; ix2++)
702 oso2 = VEC_index (oso_el, vec, ix2);
705 && strlen (oso2->name) == pfx_len + member_len + 2
706 && !memcmp (member_name, oso2->name + pfx_len + 1,
709 macho_add_oso_symfile (oso2, member_bfd,
710 bfd_get_filename (member_bfd),
711 main_objfile, symfile_flags);
717 member_bfd = gdb_bfd_openr_next_archived_file (archive_bfd.get (),
720 for (ix2 = ix; ix2 < last_ix; ix2++)
722 oso_el *oso2 = VEC_index (oso_el, vec, ix2);
724 if (oso2->name != NULL)
725 warning (_("Could not find specified archive member "
726 "for OSO name \"%s\""), oso->name);
732 gdb_bfd_ref_ptr abfd (gdb_bfd_open (oso->name, gnutarget, -1));
734 warning (_("`%s': can't open to read symbols: %s."), oso->name,
735 bfd_errmsg (bfd_get_error ()));
737 macho_add_oso_symfile (oso, abfd, oso->name, main_objfile,
745 /* DSYM (debug symbols) files contain the debug info of an executable.
746 This is a separate file created by dsymutil(1) and is similar to debug
748 DSYM files are located in a subdirectory. Append DSYM_SUFFIX to the
749 executable name and the executable base name to get the DSYM file name. */
750 #define DSYM_SUFFIX ".dSYM/Contents/Resources/DWARF/"
752 /* Check if a dsym file exists for OBJFILE. If so, returns a bfd for it
753 and return *FILENAMEP with its original xmalloc-ated filename.
754 Return NULL if no valid dsym file is found (FILENAMEP is not used in
757 static gdb_bfd_ref_ptr
758 macho_check_dsym (struct objfile *objfile, char **filenamep)
760 size_t name_len = strlen (objfile_name (objfile));
761 size_t dsym_len = strlen (DSYM_SUFFIX);
762 const char *base_name = lbasename (objfile_name (objfile));
763 size_t base_len = strlen (base_name);
764 char *dsym_filename = (char *) alloca (name_len + dsym_len + base_len + 1);
765 bfd_mach_o_load_command *main_uuid;
766 bfd_mach_o_load_command *dsym_uuid;
768 strcpy (dsym_filename, objfile_name (objfile));
769 strcpy (dsym_filename + name_len, DSYM_SUFFIX);
770 strcpy (dsym_filename + name_len + dsym_len, base_name);
772 if (access (dsym_filename, R_OK) != 0)
775 if (bfd_mach_o_lookup_command (objfile->obfd,
776 BFD_MACH_O_LC_UUID, &main_uuid) == 0)
778 warning (_("can't find UUID in %s"), objfile_name (objfile));
781 gdb_bfd_ref_ptr dsym_bfd (gdb_bfd_openr (dsym_filename, gnutarget));
782 if (dsym_bfd == NULL)
784 warning (_("can't open dsym file %s"), dsym_filename);
788 if (!bfd_check_format (dsym_bfd.get (), bfd_object))
790 warning (_("bad dsym file format: %s"), bfd_errmsg (bfd_get_error ()));
794 if (bfd_mach_o_lookup_command (dsym_bfd.get (),
795 BFD_MACH_O_LC_UUID, &dsym_uuid) == 0)
797 warning (_("can't find UUID in %s"), dsym_filename);
800 if (memcmp (dsym_uuid->command.uuid.uuid, main_uuid->command.uuid.uuid,
801 sizeof (main_uuid->command.uuid.uuid)))
803 warning (_("dsym file UUID doesn't match the one in %s"),
804 objfile_name (objfile));
807 *filenamep = xstrdup (dsym_filename);
812 macho_symfile_read (struct objfile *objfile, symfile_add_flags symfile_flags)
814 bfd *abfd = objfile->obfd;
816 VEC (oso_el) *oso_vector = NULL;
817 struct cleanup *old_chain = make_cleanup (VEC_cleanup (oso_el), &oso_vector);
819 /* Get symbols from the symbol table only if the file is an executable.
820 The symbol table of object files is not relocated and is expected to
821 be in the executable. */
822 if (bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC))
826 /* Process the normal symbol table first. */
827 storage_needed = bfd_get_symtab_upper_bound (objfile->obfd);
828 if (storage_needed < 0)
829 error (_("Can't read symbols from %s: %s"),
830 bfd_get_filename (objfile->obfd),
831 bfd_errmsg (bfd_get_error ()));
833 if (storage_needed > 0)
835 asymbol **symbol_table;
838 symbol_table = (asymbol **) xmalloc (storage_needed);
839 make_cleanup (xfree, symbol_table);
841 minimal_symbol_reader reader (objfile);
843 symcount = bfd_canonicalize_symtab (objfile->obfd, symbol_table);
846 error (_("Can't read symbols from %s: %s"),
847 bfd_get_filename (objfile->obfd),
848 bfd_errmsg (bfd_get_error ()));
850 macho_symtab_read (reader, objfile, symcount, symbol_table,
856 /* Try to read .eh_frame / .debug_frame. */
857 /* First, locate these sections. We ignore the result status
858 as it only checks for debug info. */
859 dwarf2_has_info (objfile, NULL);
860 dwarf2_build_frame_info (objfile);
862 /* Check for DSYM file. */
863 gdb_bfd_ref_ptr dsym_bfd (macho_check_dsym (objfile, &dsym_filename));
864 if (dsym_bfd != NULL)
866 struct bfd_section *asect, *dsect;
868 make_cleanup (xfree, dsym_filename);
870 if (mach_o_debug_level > 0)
871 printf_unfiltered (_("dsym file found\n"));
873 /* Set dsym section size. */
874 for (asect = objfile->obfd->sections, dsect = dsym_bfd->sections;
876 asect = asect->next, dsect = dsect->next)
878 if (strcmp (asect->name, dsect->name) != 0)
880 bfd_set_section_size (dsym_bfd.get (), dsect,
881 bfd_get_section_size (asect));
884 /* Add the dsym file as a separate file. */
885 symbol_file_add_separate (dsym_bfd.get (), dsym_filename,
886 symfile_flags, objfile);
888 /* Don't try to read dwarf2 from main file or shared libraries. */
889 do_cleanups (old_chain);
894 if (dwarf2_has_info (objfile, NULL))
896 /* DWARF 2 sections */
897 dwarf2_build_psymtabs (objfile);
901 if (oso_vector != NULL)
902 macho_symfile_read_all_oso (&oso_vector, objfile, symfile_flags);
904 do_cleanups (old_chain);
908 macho_symfile_relocate (struct objfile *objfile, asection *sectp,
911 bfd *abfd = objfile->obfd;
913 /* We're only interested in sections with relocation
915 if ((sectp->flags & SEC_RELOC) == 0)
918 if (mach_o_debug_level > 0)
919 printf_unfiltered (_("Relocate section '%s' of %s\n"),
920 sectp->name, objfile_name (objfile));
922 return bfd_simple_get_relocated_section_contents (abfd, sectp, buf, NULL);
926 macho_symfile_finish (struct objfile *objfile)
931 macho_symfile_offsets (struct objfile *objfile,
932 const struct section_addr_info *addrs)
935 struct obj_section *osect;
937 /* Allocate section_offsets. */
938 objfile->num_sections = bfd_count_sections (objfile->obfd);
939 objfile->section_offsets = (struct section_offsets *)
940 obstack_alloc (&objfile->objfile_obstack,
941 SIZEOF_N_SECTION_OFFSETS (objfile->num_sections));
942 memset (objfile->section_offsets, 0,
943 SIZEOF_N_SECTION_OFFSETS (objfile->num_sections));
945 /* This code is run when we first add the objfile with
946 symfile_add_with_addrs_or_offsets, when "addrs" not "offsets" are
947 passed in. The place in symfile.c where the addrs are applied
948 depends on the addrs having section names. But in the dyld code
949 we build an anonymous array of addrs, so that code is a no-op.
950 Because of that, we have to apply the addrs to the sections here.
951 N.B. if an objfile slides after we've already created it, then it
952 goes through objfile_relocate. */
954 for (i = 0; i < addrs->num_sections; i++)
956 ALL_OBJFILE_OSECTIONS (objfile, osect)
958 const char *bfd_sect_name = osect->the_bfd_section->name;
960 if (strcmp (bfd_sect_name, addrs->other[i].name) == 0)
962 obj_section_offset (osect) = addrs->other[i].addr;
968 objfile->sect_index_text = 0;
970 ALL_OBJFILE_OSECTIONS (objfile, osect)
972 const char *bfd_sect_name = osect->the_bfd_section->name;
973 int sect_index = osect - objfile->sections;;
975 if (startswith (bfd_sect_name, "LC_SEGMENT."))
977 if (strcmp (bfd_sect_name, "__TEXT") == 0
978 || strcmp (bfd_sect_name, "__TEXT.__text") == 0)
979 objfile->sect_index_text = sect_index;
983 static const struct sym_fns macho_sym_fns = {
984 macho_new_init, /* init anything gbl to entire symtab */
985 macho_symfile_init, /* read initial info, setup for sym_read() */
986 macho_symfile_read, /* read a symbol file into symtab */
987 NULL, /* sym_read_psymbols */
988 macho_symfile_finish, /* finished with file, cleanup */
989 macho_symfile_offsets, /* xlate external to internal form */
990 default_symfile_segments, /* Get segment information from a file. */
992 macho_symfile_relocate, /* Relocate a debug section. */
993 NULL, /* sym_get_probes */
998 _initialize_machoread (void)
1000 add_symtab_fns (bfd_target_mach_o_flavour, &macho_sym_fns);
1002 add_setshow_zuinteger_cmd ("mach-o", class_obscure,
1003 &mach_o_debug_level,
1004 _("Set if printing Mach-O symbols processing."),
1005 _("Show if printing Mach-O symbols processing."),
1007 &setdebuglist, &showdebuglist);