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* corelow.c: Include "arch-utils.h", "regset.h" and

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"gdb_assert.h".
(core_gdbarch): New variable.
(sniff_core_bfd): Don't sniff if we have support for register sets
in CORE_GDBARCH.
(core_close): Reset CORE_GDBARCH.
(core_open): Initialize CORE_GDBARCH.
(get_core_register_section): Use register sets if they are
supported by CORE_GDBARCH.
(get_core_registers): Don't print error message if we have support
for register sets in CORE_GDBARCH.
This commit is contained in:
Mark Kettenis 2003-10-29 20:59:07 +00:00
parent 0379c6889b
commit 0e24ac5d5f
2 changed files with 56 additions and 2 deletions
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14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2003-10-29 Mark Kettenis <kettenis@gnu.org>
* corelow.c: Include "arch-utils.h", "regset.h" and
"gdb_assert.h".
(core_gdbarch): New variable.
(sniff_core_bfd): Don't sniff if we have support for register sets
in CORE_GDBARCH.
(core_close): Reset CORE_GDBARCH.
(core_open): Initialize CORE_GDBARCH.
(get_core_register_section): Use register sets if they are
supported by CORE_GDBARCH.
(get_core_registers): Don't print error message if we have support
for register sets in CORE_GDBARCH.
2003-10-29 Andrew Cagney <cagney@redhat.com>
* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Instead of the

44
gdb/corelow.c
View File

@ -21,6 +21,7 @@
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "arch-utils.h"
#include "gdb_string.h"
#include <errno.h>
#include <signal.h>
@ -37,10 +38,13 @@
#include "gdbcore.h"
#include "gdbthread.h"
#include "regcache.h"
#include "regset.h"
#include "symfile.h"
#include "exec.h"
#include <readline/readline.h>
#include "gdb_assert.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
@ -56,6 +60,11 @@ static struct core_fns *core_file_fns = NULL;
static struct core_fns *core_vec = NULL;
/* FIXME: kettenis/20031023: Eventually this variable should
disappear. */
struct gdbarch *core_gdbarch = NULL;
static void core_files_info (struct target_ops *);
#ifdef SOLIB_ADD
@ -125,6 +134,10 @@ sniff_core_bfd (bfd *abfd)
struct core_fns *yummy = NULL;
int matches = 0;;
/* Don't sniff if we have support for register sets in CORE_GDBARCH. */
if (core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
return NULL;
for (cf = core_file_fns; cf != NULL; cf = cf->next)
{
if (cf->core_sniffer (cf, abfd))
@ -209,6 +222,7 @@ core_close (int quitting)
}
}
core_vec = NULL;
core_gdbarch = NULL;
}
static void
@ -311,6 +325,14 @@ core_open (char *filename, int from_tty)
core_bfd = temp_bfd;
old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
/* FIXME: kettenis/20031023: This is very dangerous. The
CORE_GDBARCH that results from this call may very well be
different from CURRENT_GDBARCH. However, its methods may only
work if it is selected as the current architecture, because they
rely on swapped data (see gdbarch.c). We should get rid of that
swapped data. */
core_gdbarch = gdbarch_from_bfd (core_bfd);
/* Find a suitable core file handler to munch on core_bfd */
core_vec = sniff_core_bfd (core_bfd);
@ -437,6 +459,24 @@ get_core_register_section (char *name,
return;
}
if (core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
{
const struct regset *regset;
regset = gdbarch_regset_from_core_section (core_gdbarch, name, size);
if (regset == NULL)
{
if (required)
warning ("Couldn't recognize %s registers in core file.\n",
human_name);
return;
}
regset->supply_regset (regset, current_regcache, -1, contents, size);
return;
}
gdb_assert (core_vec);
core_vec->core_read_registers (contents, size, which,
((CORE_ADDR)
bfd_section_vma (core_bfd, section)));
@ -454,8 +494,8 @@ get_core_registers (int regno)
{
int status;
if (core_vec == NULL
|| core_vec->core_read_registers == NULL)
if (!(core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
&& (core_vec == NULL || core_vec->core_read_registers == NULL))
{
fprintf_filtered (gdb_stderr,
"Can't fetch registers from this type of core file\n");