/* Handle shared libraries for GDB, the GNU Debugger.
- Copyright (C) 1990-2015 Free Software Foundation, Inc.
+ Copyright (C) 1990-2016 Free Software Foundation, Inc.
This file is part of GDB.
static const struct target_so_ops *
solib_ops (struct gdbarch *gdbarch)
{
- const struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data);
+ const struct target_so_ops **ops
+ = (const struct target_so_ops **) gdbarch_data (gdbarch, solib_data);
return *ops;
}
void
set_solib_ops (struct gdbarch *gdbarch, const struct target_so_ops *new_ops)
{
- const struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data);
+ const struct target_so_ops **ops
+ = (const struct target_so_ops **) gdbarch_data (gdbarch, solib_data);
*ops = new_ops;
}
char *p;
/* Avoid clobbering our input. */
- p = alloca (strlen (in_pathname) + 1);
+ p = (char *) alloca (strlen (in_pathname) + 1);
strcpy (p, in_pathname);
in_pathname = p;
/* Return the full pathname of the main executable, or NULL if not
found. The returned pathname is malloc'ed and must be freed by
the caller. If FD is non-NULL, *FD is set to either -1 or an open
- file handle for the main executable.
-
- The search algorithm used is described in solib_find_1's comment
- above. */
+ file handle for the main executable. */
char *
exec_file_find (char *in_pathname, int *fd)
{
- char *result = solib_find_1 (in_pathname, fd, 0);
+ char *result;
+ const char *fskind = effective_target_file_system_kind ();
+
+ if (in_pathname == NULL)
+ return NULL;
- if (result == NULL)
+ if (*gdb_sysroot != '\0' && IS_TARGET_ABSOLUTE_PATH (fskind, in_pathname))
{
- const char *fskind = effective_target_file_system_kind ();
+ result = solib_find_1 (in_pathname, fd, 0);
- if (fskind == file_system_kind_dos_based)
+ if (result == NULL && fskind == file_system_kind_dos_based)
{
char *new_pathname;
- new_pathname = alloca (strlen (in_pathname) + 5);
+ new_pathname = (char *) alloca (strlen (in_pathname) + 5);
strcpy (new_pathname, in_pathname);
strcat (new_pathname, ".exe");
result = solib_find_1 (new_pathname, fd, 0);
}
}
+ else
+ {
+ /* It's possible we don't have a full path, but rather just a
+ filename. Some targets, such as HP-UX, don't provide the
+ full path, sigh.
+
+ Attempt to qualify the filename against the source path.
+ (If that fails, we'll just fall back on the original
+ filename. Not much more we can do...) */
+
+ if (!source_full_path_of (in_pathname, &result))
+ result = xstrdup (in_pathname);
+ if (fd != NULL)
+ *fd = -1;
+ }
return result;
}
{
char *new_pathname;
- new_pathname = alloca (p - in_pathname + 1
- + strlen (solib_symbols_extension) + 1);
+ new_pathname
+ = (char *) alloca (p - in_pathname + 1
+ + strlen (solib_symbols_extension) + 1);
memcpy (new_pathname, in_pathname, p - in_pathname + 1);
strcpy (new_pathname + (p - in_pathname) + 1,
solib_symbols_extension);
return abfd;
}
-/* Boolean for command 'set validate-build-id'. */
-static int validate_build_id = 1;
-
-/* Implement 'show validate-build-id'. */
-
-static void
-show_validate_build_id (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("Validation a build-id matches to load a shared "
- "library is %s.\n"),
- value);
-}
-
/* Given a pointer to one of the shared objects in our list of mapped
objects, use the recorded name to open a bfd descriptor for the
object, build a section table, relocate all the section addresses
solib_map_sections (struct so_list *so)
{
const struct target_so_ops *ops = solib_ops (target_gdbarch ());
- char *filename, *validate_error;
+ char *filename;
struct target_section *p;
struct cleanup *old_chain;
bfd *abfd;
/* Leave bfd open, core_xfer_memory and "info files" need it. */
so->abfd = abfd;
- gdb_assert (ops->validate != NULL);
-
- validate_error = ops->validate (so);
- if (validate_error != NULL)
- {
- if (validate_build_id)
- {
- warning (_("Shared object \"%s\" could not be validated (%s) and "
- "will be ignored; "
- "or use 'set validate-build-id off'."),
- so->so_name, validate_error);
- xfree (validate_error);
- gdb_bfd_unref (so->abfd);
- so->abfd = NULL;
- return 0;
- }
- warning (_("Shared object \"%s\" could not be validated (%s) "
- "but it is being loaded due to "
- "'set validate-build-id off'."),
- so->so_name, validate_error);
- xfree (validate_error);
- }
-
/* Copy the full path name into so_name, allowing symbol_file_add
to find it later. This also affects the =library-loaded GDB/MI
event, and in particular the part of that notification providing
of the symbol file. */
strcpy (so->so_name, so->so_original_name);
- xfree (so->build_id);
- so->build_id = NULL;
-
/* Do the same for target-specific data. */
if (ops->clear_so != NULL)
ops->clear_so (so);
loaded. */
int
-solib_read_symbols (struct so_list *so, int flags)
+solib_read_symbols (struct so_list *so, symfile_add_flags flags)
{
if (so->symbols_loaded)
{
&& so->objfile->addr_low == so->addr_low)
break;
}
- if (so->objfile != NULL)
- break;
-
- sap = build_section_addr_info_from_section_table (so->sections,
- so->sections_end);
- so->objfile = symbol_file_add_from_bfd (so->abfd, so->so_name,
- flags, sap, OBJF_SHARED,
- NULL);
- so->objfile->addr_low = so->addr_low;
- free_section_addr_info (sap);
+ if (so->objfile == NULL)
+ {
+ sap = build_section_addr_info_from_section_table (so->sections,
+ so->sections_end);
+ so->objfile = symbol_file_add_from_bfd (so->abfd, so->so_name,
+ flags, sap, OBJF_SHARED,
+ NULL);
+ so->objfile->addr_low = so->addr_low;
+ free_section_addr_info (sap);
+ }
so->symbols_loaded = 1;
}
{
int any_matches = 0;
int loaded_any_symbols = 0;
- const int flags =
- SYMFILE_DEFER_BP_RESET | (from_tty ? SYMFILE_VERBOSE : 0);
+ symfile_add_flags add_flags = SYMFILE_DEFER_BP_RESET;
+
+ if (from_tty)
+ add_flags |= SYMFILE_VERBOSE;
for (gdb = so_list_head; gdb; gdb = gdb->next)
if (! pattern || re_exec (gdb->so_name))
printf_unfiltered (_("Symbols already loaded for %s\n"),
gdb->so_name);
}
- else if (solib_read_symbols (gdb, flags))
+ else if (solib_read_symbols (gdb, add_flags))
loaded_any_symbols = 1;
}
}
if (loaded_any_symbols)
{
- const struct target_so_ops *ops = solib_ops (target_gdbarch ());
-
/* Getting new symbols may change our opinion about what is
frameless. */
reinit_frame_cache ();
-
- ops->special_symbol_handling ();
}
}
}
char *filename, *found_pathname = NULL;
bfd *abfd;
int was_loaded = so->symbols_loaded;
- const int flags =
- SYMFILE_DEFER_BP_RESET | (from_tty ? SYMFILE_VERBOSE : 0);
+ symfile_add_flags add_flags = SYMFILE_DEFER_BP_RESET;
+
+ if (from_tty)
+ add_flags |= SYMFILE_VERBOSE;
filename = tilde_expand (so->so_original_name);
make_cleanup (xfree, filename);
if (!got_error
&& (auto_solib_add || was_loaded || libpthread_solib_p (so)))
- solib_read_symbols (so, flags);
+ solib_read_symbols (so, add_flags);
}
}
structures that are now freed. Also, getting new symbols may
change our opinion about what is frameless. */
reinit_frame_cache ();
-
- ops->special_symbol_handling ();
}
/* Wrapper for reload_shared_libraries that replaces "remote:"
/* Handler for library-specific lookup of global symbol NAME in OBJFILE. Call
the library-specific handler if it is installed for the current target. */
-struct symbol *
+struct block_symbol
solib_global_lookup (struct objfile *objfile,
const char *name,
const domain_enum domain)
{
- const struct target_so_ops *ops = solib_ops (get_objfile_arch (objfile));
+ const struct target_so_ops *ops = solib_ops (target_gdbarch ());
if (ops->lookup_lib_global_symbol != NULL)
return ops->lookup_lib_global_symbol (objfile, name, domain);
- return NULL;
+ return (struct block_symbol) {NULL, NULL};
}
/* Lookup the value for a specific symbol from dynamic symbol table. Look
CORE_ADDR
gdb_bfd_lookup_symbol_from_symtab (bfd *abfd,
- int (*match_sym) (asymbol *, void *),
- void *data)
+ int (*match_sym) (const asymbol *,
+ const void *),
+ const void *data)
{
long storage_needed = bfd_get_symtab_upper_bound (abfd);
CORE_ADDR symaddr = 0;
static CORE_ADDR
bfd_lookup_symbol_from_dyn_symtab (bfd *abfd,
- int (*match_sym) (asymbol *, void *),
- void *data)
+ int (*match_sym) (const asymbol *,
+ const void *),
+ const void *data)
{
long storage_needed = bfd_get_dynamic_symtab_upper_bound (abfd);
CORE_ADDR symaddr = 0;
CORE_ADDR
gdb_bfd_lookup_symbol (bfd *abfd,
- int (*match_sym) (asymbol *, void *),
- void *data)
+ int (*match_sym) (const asymbol *, const void *),
+ const void *data)
{
CORE_ADDR symaddr = gdb_bfd_lookup_symbol_from_symtab (abfd, match_sym, data);
}
}
-/* Default implementation does not perform any validation. */
-
-char *
-default_solib_validate (const struct so_list *const so)
-{
- return NULL; /* No validation. */
-}
-
extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */
void
reload_shared_libraries,
show_solib_search_path,
&setlist, &showlist);
-
- add_setshow_boolean_cmd ("validate-build-id", class_support,
- &validate_build_id, _("\
-Set validation a build-id matches to load a shared library."), _("\
-SHow validation a build-id matches to load a shared library."), _("\
-Inferior shared library and symbol file may contain unique build-id.\n\
-If both build-ids are present but they do not match then this setting\n\
-enables (off) or disables (on) loading of such symbol file.\n\
-Loading non-matching symbol file may confuse debugging including breakage\n\
-of backtrace output."),
- NULL,
- show_validate_build_id,
- &setlist, &showlist);
-
}
projects / deliverable / binutils-gdb.git / blobdiff