/* Handle shared libraries for GDB, the GNU Debugger.
- Copyright (C) 1990-2013 Free Software Foundation, Inc.
+ Copyright (C) 1990-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include <sys/types.h>
#include <fcntl.h>
-#include "gdb_string.h"
#include "symtab.h"
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
-#include "exceptions.h"
#include "gdbcore.h"
#include "command.h"
#include "target.h"
/* Leave bfd open, core_xfer_memory and "info files" need it. */
so->abfd = abfd;
+ /* 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
+ the library's host-side path. If we let the target dictate
+ that objfile's path, and the target is different from the host,
+ GDB/MI will not provide the correct host-side path. */
+ if (strlen (bfd_get_filename (abfd)) >= SO_NAME_MAX_PATH_SIZE)
+ error (_("Shared library file name is too long."));
+ strcpy (so->so_name, bfd_get_filename (abfd));
+
if (build_section_table (abfd, &so->sections, &so->sections_end))
{
error (_("Can't find the file sections in `%s': %s"),
int
solib_read_symbols (struct so_list *so, int flags)
{
- const int from_tty = flags & SYMFILE_VERBOSE;
-
if (so->symbols_loaded)
{
/* If needed, we've already warned in our caller. */
" library symbols for %s:\n"),
so->so_name);
else
- {
- if (from_tty || info_verbose)
- printf_unfiltered (_("Loaded symbols for %s\n"), so->so_name);
- so->symbols_loaded = 1;
- }
+ so->symbols_loaded = 1;
return 1;
}
FROM_TTY and TARGET are as described for update_solib_list, above. */
void
-solib_add (char *pattern, int from_tty,
+solib_add (const char *pattern, int from_tty,
struct target_ops *target, int readsyms)
{
struct so_list *gdb;
+ if (print_symbol_loading_p (from_tty, 0, 0))
+ {
+ if (pattern != NULL)
+ {
+ printf_unfiltered (_("Loading symbols for shared libraries: %s\n"),
+ pattern);
+ }
+ else
+ printf_unfiltered (_("Loading symbols for shared libraries.\n"));
+ }
+
current_program_space->solib_add_generation++;
if (pattern)
struct so_list *so;
struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+ if (print_symbol_loading_p (from_tty, 0, 0))
+ printf_unfiltered (_("Loading symbols for shared libraries.\n"));
+
for (so = so_list_head; so != NULL; so = so->next)
{
char *filename, *found_pathname = NULL;
the library-specific handler if it is installed for the current target. */
struct symbol *
-solib_global_lookup (const struct objfile *objfile,
+solib_global_lookup (struct objfile *objfile,
const char *name,
const domain_enum domain)
{
- const struct target_so_ops *ops = solib_ops (target_gdbarch ());
+ const struct target_so_ops *ops = solib_ops (get_objfile_arch (objfile));
if (ops->lookup_lib_global_symbol != NULL)
return ops->lookup_lib_global_symbol (objfile, name, domain);
if (match_sym (sym, data))
{
+ struct gdbarch *gdbarch = target_gdbarch ();
+ symaddr = sym->value;
+
+ /* Some ELF targets fiddle with addresses of symbols they
+ consider special. They use minimal symbols to do that
+ and this is needed for correct breakpoint placement,
+ but we do not have full data here to build a complete
+ minimal symbol, so just set the address and let the
+ targets cope with that. */
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && gdbarch_elf_make_msymbol_special_p (gdbarch))
+ {
+ struct minimal_symbol msym;
+
+ memset (&msym, 0, sizeof (msym));
+ SET_MSYMBOL_VALUE_ADDRESS (&msym, symaddr);
+ gdbarch_elf_make_msymbol_special (gdbarch, sym, &msym);
+ symaddr = MSYMBOL_VALUE_RAW_ADDRESS (&msym);
+ }
+
/* BFD symbols are section relative. */
- symaddr = sym->value + sym->section->vma;
+ symaddr += sym->section->vma;
break;
}
}
return symaddr;
}
+/* SO_LIST_HEAD may contain user-loaded object files that can be removed
+ out-of-band by the user. So upon notification of free_objfile remove
+ all references to any user-loaded file that is about to be freed. */
+
+static void
+remove_user_added_objfile (struct objfile *objfile)
+{
+ struct so_list *so;
+
+ if (objfile != 0 && objfile->flags & OBJF_USERLOADED)
+ {
+ for (so = so_list_head; so != NULL; so = so->next)
+ if (so->objfile == objfile)
+ so->objfile = NULL;
+ }
+}
+
extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */
void
{
solib_data = gdbarch_data_register_pre_init (solib_init);
+ observer_attach_free_objfile (remove_user_added_objfile);
+
add_com ("sharedlibrary", class_files, sharedlibrary_command,
_("Load shared object library symbols for files matching REGEXP."));
add_info ("sharedlibrary", info_sharedlibrary_command,
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