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2004-03-15 Andrew Cagney <cagney@redhat.com>

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* Makefile.in (frame-unwind.o): Update dependencies.
	* frame-unwind.c: Include "gdb_obstack.h".
	(frame_unwind_init): Replace "gdbarch" parameter with an "obstack"
	parameter.
	(append_predicate): Delete function.
	(struct frame_unwind_table_entry): New structure.
	(struct frame_unwind_table): Replace "sniffer" with "head" and
	"tail".
	(frame_unwind_append_sniffer): Update.
	(frame_unwind_find_by_frame): Update.
	(_initialize_frame_unwind): Registe frame_unwind_init using
	gdbarch_data_register_pre_init.
This commit is contained in:
Andrew Cagney
2004-03-15 23:08:28 +00:00
parent 3f63813d05
commit 41fe5eb389
3 changed files with 39 additions and 30 deletions
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15
gdb/ChangeLog
View File

@@ -1,3 +1,18 @@
2004-03-15 Andrew Cagney <cagney@redhat.com>
* Makefile.in (frame-unwind.o): Update dependencies.
* frame-unwind.c: Include "gdb_obstack.h".
(frame_unwind_init): Replace "gdbarch" parameter with an "obstack"
parameter.
(append_predicate): Delete function.
(struct frame_unwind_table_entry): New structure.
(struct frame_unwind_table): Replace "sniffer" with "head" and
"tail".
(frame_unwind_append_sniffer): Update.
(frame_unwind_find_by_frame): Update.
(_initialize_frame_unwind): Registe frame_unwind_init using
gdbarch_data_register_pre_init.
2004-03-15 Mark Kettenis <kettenis@gnu.org>
* i386bsd-nat.c: Update copyright year.

2
gdb/Makefile.in
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@@ -1765,7 +1765,7 @@ frame.o: frame.c $(defs_h) $(frame_h) $(target_h) $(value_h) $(inferior_h) \
$(annotate_h) $(language_h) $(frame_unwind_h) $(frame_base_h) \
$(command_h) $(gdbcmd_h)
frame-unwind.o: frame-unwind.c $(defs_h) $(frame_h) $(frame_unwind_h) \
$(gdb_assert_h) $(dummy_frame_h)
$(gdb_assert_h) $(dummy_frame_h) $(gdb_obstack_h)
frv-linux-tdep.o: frv-linux-tdep.c $(defs_h) $(target_h) $(osabi_h) \
$(elf_bfd_h) $(elf_frv_h) $(frv_tdep_h)
frv-tdep.o: frv-tdep.c $(defs_h) $(gdb_string_h) $(inferior_h) $(gdbcore_h) \

52
gdb/frame-unwind.c
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@@ -1,6 +1,6 @@
/* Definitions for frame unwinder, for GDB, the GNU debugger.
Copyright 2003 Free Software Foundation, Inc.
Copyright 2003, 2004 Free Software Foundation, Inc.
This file is part of GDB.
@@ -24,31 +24,30 @@
#include "frame-unwind.h"
#include "gdb_assert.h"
#include "dummy-frame.h"
#include "gdb_obstack.h"
static struct gdbarch_data *frame_unwind_data;
struct frame_unwind_table
struct frame_unwind_table_entry
{
frame_unwind_sniffer_ftype **sniffer;
int nr;
frame_unwind_sniffer_ftype *sniffer;
struct frame_unwind_table_entry *next;
};
/* Append a predicate to the end of the table. */
static void
append_predicate (struct frame_unwind_table *table,
frame_unwind_sniffer_ftype *sniffer)
struct frame_unwind_table
{
table->sniffer = xrealloc (table->sniffer, ((table->nr + 1)
* sizeof (frame_unwind_sniffer_ftype *)));
table->sniffer[table->nr] = sniffer;
table->nr++;
}
struct frame_unwind_table_entry *head;
struct frame_unwind_table_entry **tail;
};
static void *
frame_unwind_init (struct gdbarch *gdbarch)
frame_unwind_init (struct obstack *obstack)
{
struct frame_unwind_table *table = XCALLOC (1, struct frame_unwind_table);
append_predicate (table, dummy_frame_sniffer);
struct frame_unwind_table *table
= OBSTACK_ZALLOC (obstack, struct frame_unwind_table);
table->head = OBSTACK_ZALLOC (obstack, struct frame_unwind_table_entry);
table->head->sniffer = dummy_frame_sniffer;
table->tail = &table->head->next;
return table;
}
@@ -56,16 +55,10 @@ void
frame_unwind_append_sniffer (struct gdbarch *gdbarch,
frame_unwind_sniffer_ftype *sniffer)
{
struct frame_unwind_table *table =
gdbarch_data (gdbarch, frame_unwind_data);
if (table == NULL)
{
/* ULGH, called during architecture initialization. Patch
things up. */
table = frame_unwind_init (gdbarch);
deprecated_set_gdbarch_data (gdbarch, frame_unwind_data, table);
}
append_predicate (table, sniffer);
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
(*table->tail) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_unwind_table_entry);
(*table->tail)->sniffer = sniffer;
table->tail = &((*table->tail)->next);
}
const struct frame_unwind *
@@ -74,16 +67,17 @@ frame_unwind_find_by_frame (struct frame_info *next_frame)
int i;
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
struct frame_unwind_table_entry *entry;
if (!DEPRECATED_USE_GENERIC_DUMMY_FRAMES && legacy_frame_p (gdbarch))
/* Seriously old code. Don't even try to use this new mechanism.
(Note: The variable USE_GENERIC_DUMMY_FRAMES is deprecated, not
the dummy frame mechanism. All architectures should be using
generic dummy frames). */
return legacy_saved_regs_unwind;
for (i = 0; i < table->nr; i++)
for (entry = table->head; entry != NULL; entry = entry->next)
{
const struct frame_unwind *desc;
desc = table->sniffer[i] (next_frame);
desc = entry->sniffer (next_frame);
if (desc != NULL)
return desc;
}
@@ -95,5 +89,5 @@ extern initialize_file_ftype _initialize_frame_unwind; /* -Wmissing-prototypes *
void
_initialize_frame_unwind (void)
{
frame_unwind_data = gdbarch_data_register_post_init (frame_unwind_init);
frame_unwind_data = gdbarch_data_register_pre_init (frame_unwind_init);
}