static void add_symbol_file_command (char *, int);
-static void reread_separate_symbols (struct objfile *objfile);
-
static void cashier_psymtab (struct partial_symtab *);
bfd *symfile_bfd_open (char *);
static void info_ext_lang_command (char *args, int from_tty);
-static char *find_separate_debug_file (struct objfile *objfile);
-
static void init_filename_language_table (void);
static void symfile_find_segment_sections (struct objfile *objfile);
{
struct objfile *objfile;
struct partial_symtab *psymtab;
- char *debugfile = NULL;
- struct section_addr_info *orig_addrs = NULL;
struct cleanup *my_cleanups;
const char *name = bfd_get_filename (abfd);
const int from_tty = add_flags & SYMFILE_VERBOSE;
objfile = allocate_objfile (abfd, flags);
discard_cleanups (my_cleanups);
- if (addrs)
- {
- orig_addrs = copy_section_addr_info (addrs);
- make_cleanup_free_section_addr_info (orig_addrs);
- }
-
/* We either created a new mapped symbol table, mapped an existing
symbol table file which has not had initial symbol reading
performed, or need to read an unmapped symbol table. */
}
}
- /* If the file has its own symbol tables it has no separate debug info.
- `.dynsym'/`.symtab' go to MSYMBOLS, `.debug_info' goes to SYMTABS/PSYMTABS.
- `.gnu_debuglink' may no longer be present with `.note.gnu.build-id'. */
- if (objfile->psymtabs == NULL)
- debugfile = find_separate_debug_file (objfile);
- if (debugfile)
- {
- if (addrs != NULL)
- {
- objfile->separate_debug_objfile
- = symbol_file_add (debugfile, add_flags, orig_addrs, flags);
- }
- else
- {
- objfile->separate_debug_objfile
- = symbol_file_add (debugfile, add_flags, NULL, flags);
- }
- objfile->separate_debug_objfile->separate_debug_objfile_backlink
- = objfile;
-
- /* Put the separate debug object before the normal one, this is so that
- usage of the ALL_OBJFILES_SAFE macro will stay safe. */
- put_objfile_before (objfile->separate_debug_objfile, objfile);
-
- xfree (debugfile);
- }
-
if ((from_tty || info_verbose)
&& !objfile_has_symbols (objfile))
{
return (objfile);
}
+/* Add BFD as a separate debug file for OBJFILE. */
+
+void
+symbol_file_add_separate (bfd *bfd, int symfile_flags, struct objfile *objfile)
+{
+ /* Currently only one separate debug objfile is supported. */
+ gdb_assert (objfile && objfile->separate_debug_objfile == NULL);
+
+ objfile->separate_debug_objfile =
+ symbol_file_add_with_addrs_or_offsets
+ (bfd, symfile_flags,
+ 0, /* No addr table. */
+ objfile->section_offsets, objfile->num_sections,
+ objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
+ | OBJF_USERLOADED));
+ objfile->separate_debug_objfile->separate_debug_objfile_backlink
+ = objfile;
+
+ /* Put the separate debug object before the normal one, this is so that
+ usage of the ALL_OBJFILES_SAFE macro will stay safe. */
+ put_objfile_before (objfile->separate_debug_objfile, objfile);
+}
/* Process the symbol file ABFD, as either the main file or as a
dynamically loaded file.
#define DEBUG_SUBDIRECTORY ".debug"
#endif
-static char *
-find_separate_debug_file (struct objfile *objfile)
+char *
+find_separate_debug_file_by_buildid (struct objfile *objfile)
{
asection *sect;
char *basename, *name_copy, *debugdir;
else if (build_id_name != NULL)
return build_id_name;
}
+ return NULL;
+}
+
+char *
+find_separate_debug_file_by_debuglink (struct objfile *objfile)
+{
+ asection *sect;
+ char *basename, *name_copy, *debugdir;
+ char *dir = NULL;
+ char *debugfile = NULL;
+ char *canon_name = NULL;
+ bfd_size_type debuglink_size;
+ unsigned long crc32;
+ int i;
basename = get_debug_link_info (objfile, &crc32);
for (objfile = object_files; objfile; objfile = objfile->next)
{
- if (objfile->obfd)
- {
+ /* solib-sunos.c creates one objfile with obfd. */
+ if (objfile->obfd == NULL)
+ continue;
+
+ /* Separate debug objfiles are handled in the main objfile. */
+ if (objfile->separate_debug_objfile_backlink)
+ continue;
+
#ifdef DEPRECATED_IBM6000_TARGET
- /* If this object is from a shared library, then you should
- stat on the library name, not member name. */
+ /* If this object is from a shared library, then you should
+ stat on the library name, not member name. */
- if (objfile->obfd->my_archive)
- res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
- else
+ if (objfile->obfd->my_archive)
+ res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
+ else
#endif
- res = stat (objfile->name, &new_statbuf);
- if (res != 0)
+ res = stat (objfile->name, &new_statbuf);
+ if (res != 0)
+ {
+ /* FIXME, should use print_sys_errmsg but it's not filtered. */
+ printf_unfiltered (_("`%s' has disappeared; keeping its symbols.\n"),
+ objfile->name);
+ continue;
+ }
+ new_modtime = new_statbuf.st_mtime;
+ if (new_modtime != objfile->mtime)
+ {
+ struct cleanup *old_cleanups;
+ struct section_offsets *offsets;
+ int num_offsets;
+ char *obfd_filename;
+
+ printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"),
+ objfile->name);
+
+ /* There are various functions like symbol_file_add,
+ symfile_bfd_open, syms_from_objfile, etc., which might
+ appear to do what we want. But they have various other
+ effects which we *don't* want. So we just do stuff
+ ourselves. We don't worry about mapped files (for one thing,
+ any mapped file will be out of date). */
+
+ /* If we get an error, blow away this objfile (not sure if
+ that is the correct response for things like shared
+ libraries). */
+ old_cleanups = make_cleanup_free_objfile (objfile);
+ /* We need to do this whenever any symbols go away. */
+ make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/);
+
+ if (exec_bfd != NULL && strcmp (bfd_get_filename (objfile->obfd),
+ bfd_get_filename (exec_bfd)) == 0)
{
- /* FIXME, should use print_sys_errmsg but it's not filtered. */
- printf_unfiltered (_("`%s' has disappeared; keeping its symbols.\n"),
- objfile->name);
- continue;
+ /* Reload EXEC_BFD without asking anything. */
+
+ exec_file_attach (bfd_get_filename (objfile->obfd), 0);
}
- new_modtime = new_statbuf.st_mtime;
- if (new_modtime != objfile->mtime)
+
+ /* Clean up any state BFD has sitting around. We don't need
+ to close the descriptor but BFD lacks a way of closing the
+ BFD without closing the descriptor. */
+ obfd_filename = bfd_get_filename (objfile->obfd);
+ if (!bfd_close (objfile->obfd))
+ error (_("Can't close BFD for %s: %s"), objfile->name,
+ bfd_errmsg (bfd_get_error ()));
+ if (remote_filename_p (obfd_filename))
+ objfile->obfd = remote_bfd_open (obfd_filename, gnutarget);
+ else
+ objfile->obfd = bfd_openr (obfd_filename, gnutarget);
+ if (objfile->obfd == NULL)
+ error (_("Can't open %s to read symbols."), objfile->name);
+ else
+ objfile->obfd = gdb_bfd_ref (objfile->obfd);
+ /* bfd_openr sets cacheable to true, which is what we want. */
+ if (!bfd_check_format (objfile->obfd, bfd_object))
+ error (_("Can't read symbols from %s: %s."), objfile->name,
+ bfd_errmsg (bfd_get_error ()));
+
+ /* Save the offsets, we will nuke them with the rest of the
+ objfile_obstack. */
+ num_offsets = objfile->num_sections;
+ offsets = ((struct section_offsets *)
+ alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets)));
+ memcpy (offsets, objfile->section_offsets,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+
+ /* Remove any references to this objfile in the global
+ value lists. */
+ preserve_values (objfile);
+
+ /* Nuke all the state that we will re-read. Much of the following
+ code which sets things to NULL really is necessary to tell
+ other parts of GDB that there is nothing currently there.
+
+ Try to keep the freeing order compatible with free_objfile. */
+
+ if (objfile->sf != NULL)
{
- struct cleanup *old_cleanups;
- struct section_offsets *offsets;
- int num_offsets;
- char *obfd_filename;
-
- printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"),
- objfile->name);
-
- /* There are various functions like symbol_file_add,
- symfile_bfd_open, syms_from_objfile, etc., which might
- appear to do what we want. But they have various other
- effects which we *don't* want. So we just do stuff
- ourselves. We don't worry about mapped files (for one thing,
- any mapped file will be out of date). */
-
- /* If we get an error, blow away this objfile (not sure if
- that is the correct response for things like shared
- libraries). */
- old_cleanups = make_cleanup_free_objfile (objfile);
- /* We need to do this whenever any symbols go away. */
- make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/);
-
- if (exec_bfd != NULL && strcmp (bfd_get_filename (objfile->obfd),
- bfd_get_filename (exec_bfd)) == 0)
- {
- /* Reload EXEC_BFD without asking anything. */
+ (*objfile->sf->sym_finish) (objfile);
+ }
- exec_file_attach (bfd_get_filename (objfile->obfd), 0);
- }
+ clear_objfile_data (objfile);
- /* Clean up any state BFD has sitting around. We don't need
- to close the descriptor but BFD lacks a way of closing the
- BFD without closing the descriptor. */
- obfd_filename = bfd_get_filename (objfile->obfd);
- if (!bfd_close (objfile->obfd))
- error (_("Can't close BFD for %s: %s"), objfile->name,
- bfd_errmsg (bfd_get_error ()));
- if (remote_filename_p (obfd_filename))
- objfile->obfd = remote_bfd_open (obfd_filename, gnutarget);
- else
- objfile->obfd = bfd_openr (obfd_filename, gnutarget);
- if (objfile->obfd == NULL)
- error (_("Can't open %s to read symbols."), objfile->name);
- else
- objfile->obfd = gdb_bfd_ref (objfile->obfd);
- /* bfd_openr sets cacheable to true, which is what we want. */
- if (!bfd_check_format (objfile->obfd, bfd_object))
- error (_("Can't read symbols from %s: %s."), objfile->name,
- bfd_errmsg (bfd_get_error ()));
-
- /* Save the offsets, we will nuke them with the rest of the
- objfile_obstack. */
- num_offsets = objfile->num_sections;
- offsets = ((struct section_offsets *)
- alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets)));
- memcpy (offsets, objfile->section_offsets,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
-
- /* Remove any references to this objfile in the global
- value lists. */
- preserve_values (objfile);
-
- /* Nuke all the state that we will re-read. Much of the following
- code which sets things to NULL really is necessary to tell
- other parts of GDB that there is nothing currently there.
-
- Try to keep the freeing order compatible with free_objfile. */
-
- if (objfile->sf != NULL)
- {
- (*objfile->sf->sym_finish) (objfile);
- }
+ /* Free the separate debug objfile if there is one. It will be
+ automatically recreated by sym_read. */
+ if (objfile->separate_debug_objfile)
+ {
+ /* Note: no need to clear separate_debug_objfile field as it is
+ done by free_objfile. */
+ free_objfile (objfile->separate_debug_objfile);
+ }
- clear_objfile_data (objfile);
-
- /* FIXME: Do we have to free a whole linked list, or is this
- enough? */
- if (objfile->global_psymbols.list)
- xfree (objfile->global_psymbols.list);
- memset (&objfile->global_psymbols, 0,
- sizeof (objfile->global_psymbols));
- if (objfile->static_psymbols.list)
- xfree (objfile->static_psymbols.list);
- memset (&objfile->static_psymbols, 0,
- sizeof (objfile->static_psymbols));
-
- /* Free the obstacks for non-reusable objfiles */
- bcache_xfree (objfile->psymbol_cache);
- objfile->psymbol_cache = bcache_xmalloc ();
- bcache_xfree (objfile->macro_cache);
- objfile->macro_cache = bcache_xmalloc ();
- bcache_xfree (objfile->filename_cache);
- objfile->filename_cache = bcache_xmalloc ();
- if (objfile->demangled_names_hash != NULL)
- {
- htab_delete (objfile->demangled_names_hash);
- objfile->demangled_names_hash = NULL;
- }
- obstack_free (&objfile->objfile_obstack, 0);
- objfile->sections = NULL;
- objfile->symtabs = NULL;
- objfile->psymtabs = NULL;
- objfile->psymtabs_addrmap = NULL;
- objfile->free_psymtabs = NULL;
- objfile->cp_namespace_symtab = NULL;
- objfile->msymbols = NULL;
- objfile->deprecated_sym_private = NULL;
- objfile->minimal_symbol_count = 0;
- memset (&objfile->msymbol_hash, 0,
- sizeof (objfile->msymbol_hash));
- memset (&objfile->msymbol_demangled_hash, 0,
- sizeof (objfile->msymbol_demangled_hash));
-
- objfile->psymbol_cache = bcache_xmalloc ();
- objfile->macro_cache = bcache_xmalloc ();
- objfile->filename_cache = bcache_xmalloc ();
- /* obstack_init also initializes the obstack so it is
- empty. We could use obstack_specify_allocation but
- gdb_obstack.h specifies the alloc/dealloc
- functions. */
- obstack_init (&objfile->objfile_obstack);
- if (build_objfile_section_table (objfile))
- {
- error (_("Can't find the file sections in `%s': %s"),
- objfile->name, bfd_errmsg (bfd_get_error ()));
- }
- terminate_minimal_symbol_table (objfile);
-
- /* We use the same section offsets as from last time. I'm not
- sure whether that is always correct for shared libraries. */
- objfile->section_offsets = (struct section_offsets *)
- obstack_alloc (&objfile->objfile_obstack,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
- memcpy (objfile->section_offsets, offsets,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
- objfile->num_sections = num_offsets;
-
- /* What the hell is sym_new_init for, anyway? The concept of
- distinguishing between the main file and additional files
- in this way seems rather dubious. */
- if (objfile == symfile_objfile)
- {
- (*objfile->sf->sym_new_init) (objfile);
- }
+ /* FIXME: Do we have to free a whole linked list, or is this
+ enough? */
+ if (objfile->global_psymbols.list)
+ xfree (objfile->global_psymbols.list);
+ memset (&objfile->global_psymbols, 0,
+ sizeof (objfile->global_psymbols));
+ if (objfile->static_psymbols.list)
+ xfree (objfile->static_psymbols.list);
+ memset (&objfile->static_psymbols, 0,
+ sizeof (objfile->static_psymbols));
+
+ /* Free the obstacks for non-reusable objfiles */
+ bcache_xfree (objfile->psymbol_cache);
+ objfile->psymbol_cache = bcache_xmalloc ();
+ bcache_xfree (objfile->macro_cache);
+ objfile->macro_cache = bcache_xmalloc ();
+ bcache_xfree (objfile->filename_cache);
+ objfile->filename_cache = bcache_xmalloc ();
+ if (objfile->demangled_names_hash != NULL)
+ {
+ htab_delete (objfile->demangled_names_hash);
+ objfile->demangled_names_hash = NULL;
+ }
+ obstack_free (&objfile->objfile_obstack, 0);
+ objfile->sections = NULL;
+ objfile->symtabs = NULL;
+ objfile->psymtabs = NULL;
+ objfile->psymtabs_addrmap = NULL;
+ objfile->free_psymtabs = NULL;
+ objfile->cp_namespace_symtab = NULL;
+ objfile->msymbols = NULL;
+ objfile->deprecated_sym_private = NULL;
+ objfile->minimal_symbol_count = 0;
+ memset (&objfile->msymbol_hash, 0,
+ sizeof (objfile->msymbol_hash));
+ memset (&objfile->msymbol_demangled_hash, 0,
+ sizeof (objfile->msymbol_demangled_hash));
+
+ objfile->psymbol_cache = bcache_xmalloc ();
+ objfile->macro_cache = bcache_xmalloc ();
+ objfile->filename_cache = bcache_xmalloc ();
+ /* obstack_init also initializes the obstack so it is
+ empty. We could use obstack_specify_allocation but
+ gdb_obstack.h specifies the alloc/dealloc
+ functions. */
+ obstack_init (&objfile->objfile_obstack);
+ if (build_objfile_section_table (objfile))
+ {
+ error (_("Can't find the file sections in `%s': %s"),
+ objfile->name, bfd_errmsg (bfd_get_error ()));
+ }
+ terminate_minimal_symbol_table (objfile);
+
+ /* We use the same section offsets as from last time. I'm not
+ sure whether that is always correct for shared libraries. */
+ objfile->section_offsets = (struct section_offsets *)
+ obstack_alloc (&objfile->objfile_obstack,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+ memcpy (objfile->section_offsets, offsets,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+ objfile->num_sections = num_offsets;
+
+ /* What the hell is sym_new_init for, anyway? The concept of
+ distinguishing between the main file and additional files
+ in this way seems rather dubious. */
+ if (objfile == symfile_objfile)
+ {
+ (*objfile->sf->sym_new_init) (objfile);
+ }
- (*objfile->sf->sym_init) (objfile);
- clear_complaints (&symfile_complaints, 1, 1);
- /* The "mainline" parameter is a hideous hack; I think leaving it
- zero is OK since dbxread.c also does what it needs to do if
- objfile->global_psymbols.size is 0. */
- (*objfile->sf->sym_read) (objfile, 0);
- if (!objfile_has_symbols (objfile))
- {
- wrap_here ("");
- printf_unfiltered (_("(no debugging symbols found)\n"));
- wrap_here ("");
- }
+ (*objfile->sf->sym_init) (objfile);
+ clear_complaints (&symfile_complaints, 1, 1);
+ /* Do not set flags as this is safe and we don't want to be
+ verbose. */
+ (*objfile->sf->sym_read) (objfile, 0);
+ if (!objfile_has_symbols (objfile))
+ {
+ wrap_here ("");
+ printf_unfiltered (_("(no debugging symbols found)\n"));
+ wrap_here ("");
+ }
- /* We're done reading the symbol file; finish off complaints. */
- clear_complaints (&symfile_complaints, 0, 1);
+ /* We're done reading the symbol file; finish off complaints. */
+ clear_complaints (&symfile_complaints, 0, 1);
- /* Getting new symbols may change our opinion about what is
- frameless. */
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
- reinit_frame_cache ();
+ reinit_frame_cache ();
- /* Discard cleanups as symbol reading was successful. */
- discard_cleanups (old_cleanups);
+ /* Discard cleanups as symbol reading was successful. */
+ discard_cleanups (old_cleanups);
- /* If the mtime has changed between the time we set new_modtime
- and now, we *want* this to be out of date, so don't call stat
- again now. */
- objfile->mtime = new_modtime;
- reread_one = 1;
- reread_separate_symbols (objfile);
- init_entry_point_info (objfile);
- }
+ /* If the mtime has changed between the time we set new_modtime
+ and now, we *want* this to be out of date, so don't call stat
+ again now. */
+ objfile->mtime = new_modtime;
+ reread_one = 1;
+ init_entry_point_info (objfile);
}
}
observer_notify_executable_changed ();
}
}
-
-
-/* Handle separate debug info for OBJFILE, which has just been
- re-read:
- - If we had separate debug info before, but now we don't, get rid
- of the separated objfile.
- - If we didn't have separated debug info before, but now we do,
- read in the new separated debug info file.
- - If the debug link points to a different file, toss the old one
- and read the new one.
- This function does *not* handle the case where objfile is still
- using the same separate debug info file, but that file's timestamp
- has changed. That case should be handled by the loop in
- reread_symbols already. */
-static void
-reread_separate_symbols (struct objfile *objfile)
-{
- char *debug_file;
- unsigned long crc32;
-
- /* Does the updated objfile's debug info live in a
- separate file? */
- debug_file = find_separate_debug_file (objfile);
-
- if (objfile->separate_debug_objfile)
- {
- /* There are two cases where we need to get rid of
- the old separated debug info objfile:
- - if the new primary objfile doesn't have
- separated debug info, or
- - if the new primary objfile has separate debug
- info, but it's under a different filename.
-
- If the old and new objfiles both have separate
- debug info, under the same filename, then we're
- okay --- if the separated file's contents have
- changed, we will have caught that when we
- visited it in this function's outermost
- loop. */
- if (! debug_file
- || strcmp (debug_file, objfile->separate_debug_objfile->name) != 0)
- free_objfile (objfile->separate_debug_objfile);
- }
-
- /* If the new objfile has separate debug info, and we
- haven't loaded it already, do so now. */
- if (debug_file
- && ! objfile->separate_debug_objfile)
- {
- /* Use the same section offset table as objfile itself.
- Preserve the flags from objfile that make sense. */
- objfile->separate_debug_objfile
- = (symbol_file_add_with_addrs_or_offsets
- (symfile_bfd_open (debug_file),
- info_verbose ? SYMFILE_VERBOSE : 0,
- 0, /* No addr table. */
- objfile->section_offsets, objfile->num_sections,
- objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
- | OBJF_USERLOADED)));
- objfile->separate_debug_objfile->separate_debug_objfile_backlink
- = objfile;
- }
- if (debug_file)
- xfree (debug_file);
-}
-
-
\f
projects / binutils-gdb.git / commitdiff