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* NEWS: Mention maint info bfds.

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* gdb_bfd.c (all_bfds): New global.
    	(gdb_bfd_ref, gdb_bfd_unref): Update all_bfds.
    	(print_one_bfd, maintenance_info_bfds, _initialize_gdb_bfd):
    	New functions.
gdb/doc
    	* gdb.texinfo (Maintenance Commands): Document maint info bfds.
This commit is contained in:
Tom Tromey 2012-07-25 15:47:09 +00:00
parent 6e73ba20e6
commit d6b289409b
5 changed files with 95 additions and 0 deletions
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8
gdb/ChangeLog
View file

@ -1,3 +1,11 @@
2012-07-25 Tom Tromey <tromey@redhat.com>
* NEWS: Mention maint info bfds.
* gdb_bfd.c (all_bfds): New global.
(gdb_bfd_ref, gdb_bfd_unref): Update all_bfds.
(print_one_bfd, maintenance_info_bfds, _initialize_gdb_bfd):
New functions.
2012-07-25 Ralf Corsépius <ralf.corsepius@rtems.org>
* configure.tgt: Add v850*-*-rtems*.

5
gdb/NEWS
View file

@ -3,6 +3,11 @@
*** Changes since GDB 7.5
* New commands (for set/show, see "New options" below)
maint info bfds
List the BFDs known to GDB.
*** Changes in GDB 7.5
* GDB now supports x32 ABI. Visit <http://sites.google.com/site/x32abi/>

4
gdb/doc/ChangeLog
View file

@ -1,3 +1,7 @@
2012-07-25 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Maintenance Commands): Document maint info bfds.
2012-07-20 Doug Evans <dje@google.com>
* gdb.texinfo (Mode Options): Delete --use-deprecated-index-sections.

5
gdb/doc/gdb.texinfo
View file

@ -34536,6 +34536,11 @@ Shared library events.
@end table
@kindex maint info bfds
@item maint info bfds
This prints information about each @code{bfd} object that is known to
@value{GDBN}. @xref{Top, , BFD, bfd, The Binary File Descriptor Library}.
@kindex set displaced-stepping
@kindex show displaced-stepping
@cindex displaced stepping support

73
gdb/gdb_bfd.c
View file

@ -22,6 +22,8 @@
#include "gdb_bfd.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "ui-out.h"
#include "gdbcmd.h"
#include "hashtab.h"
#ifdef HAVE_ZLIB_H
#include <zlib.h>
@ -48,6 +50,13 @@ struct gdb_bfd_section_data
void *map_addr;
};
/* A hash table holding every BFD that gdb knows about. This is not
to be confused with 'gdb_bfd_cache', which is used for sharing
BFDs; in contrast, this hash is used just to implement
"maint info bfd". */
static htab_t all_bfds;
/* See gdb_bfd.h. */
void
@ -224,6 +233,7 @@ void
gdb_bfd_ref (struct bfd *abfd)
{
struct gdb_bfd_data *gdata;
void **slot;
if (abfd == NULL)
return;
@ -240,6 +250,11 @@ gdb_bfd_ref (struct bfd *abfd)
gdata->refc = 1;
gdata->mtime = bfd_get_mtime (abfd);
bfd_usrdata (abfd) = gdata;
/* This is the first we've seen it, so add it to the hash table. */
slot = htab_find_slot (all_bfds, abfd, INSERT);
gdb_assert (slot && !*slot);
*slot = abfd;
}
/* See gdb_bfd.h. */
@ -249,6 +264,7 @@ gdb_bfd_unref (struct bfd *abfd)
{
struct gdb_bfd_data *gdata;
struct gdb_bfd_cache_search search;
void **slot;
if (abfd == NULL)
return;
@ -277,6 +293,8 @@ gdb_bfd_unref (struct bfd *abfd)
bfd_usrdata (abfd) = NULL; /* Paranoia. */
htab_remove_elt (all_bfds, abfd);
gdb_bfd_close_or_warn (abfd);
}
@ -595,3 +613,58 @@ gdb_bfd_fdopenr (const char *filename, const char *target, int fd)
return result;
}
/* A callback for htab_traverse that prints a single BFD. */
static int
print_one_bfd (void **slot, void *data)
{
bfd *abfd = *slot;
struct gdb_bfd_data *gdata = bfd_usrdata (abfd);
struct ui_out *uiout = data;
struct cleanup *inner;
inner = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
ui_out_field_int (uiout, "refcount", gdata->refc);
ui_out_field_string (uiout, "addr", host_address_to_string (abfd));
ui_out_field_string (uiout, "filename", bfd_get_filename (abfd));
ui_out_text (uiout, "\n");
do_cleanups (inner);
return 1;
}
/* Implement the 'maint info bfd' command. */
static void
maintenance_info_bfds (char *arg, int from_tty)
{
struct cleanup *cleanup;
struct ui_out *uiout = current_uiout;
cleanup = make_cleanup_ui_out_table_begin_end (uiout, 3, -1, "bfds");
ui_out_table_header (uiout, 10, ui_left, "refcount", "Refcount");
ui_out_table_header (uiout, 18, ui_left, "addr", "Address");
ui_out_table_header (uiout, 40, ui_left, "filename", "Filename");
ui_out_table_body (uiout);
htab_traverse (all_bfds, print_one_bfd, uiout);
do_cleanups (cleanup);
}
/* -Wmissing-prototypes */
extern initialize_file_ftype _initialize_gdb_bfd;
void
_initialize_gdb_bfd (void)
{
all_bfds = htab_create_alloc (10, htab_hash_pointer, htab_eq_pointer,
NULL, xcalloc, xfree);
add_cmd ("bfds", class_maintenance, maintenance_info_bfds, _("\
List the BFDs that are currently open."),
&maintenanceinfolist);
}