FreeChainXenon/binutils-gdb
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2003-07-15 Andrew Cagney <cagney@redhat.com>

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* frame.c (get_frame_id): Use frame_unwind_find_by_frame.
	(frame_register_unwind, create_new_frame): Ditto.
	(legacy_get_prev_frame, get_frame_type): Ditto.
	(get_frame_base_address): Use frame_base_find_by_frame.
	(get_frame_locals_address): Use frame_base_find_by_frame.
	(get_frame_args_address): Use frame_base_find_by_frame.
	* frame-base.h (frame_base_sniffer_ftype): Declare.
	(frame_base_append_sniffer): Declare.
	(frame_base_find_by_frame): Replace frame_base_find_by_pc.
	* frame-base.c (append_predicate): Add a "sniffer" parameter.
	(frame_base_append_sniffer): New function.
	(frame_base_append_predicate): Add a NULL sniffer.
	(frame_base_find_by_frame): Replace "frame_base_find_by_pc".
	(struct frame_base_table): Add "sniffer".
	(frame_base_free): Free the "sniffer" table.
	* frame-unwind.h (frame_unwind_sniffer_ftype): Define.
	(frame_unwind_append_sniffer): Declare.
	(frame_unwind_find_by_frame): Replace frame_unwind_find_by_pc.
	* frame-unwind.c (frame_unwind_free): Free the "sniffer" table.
	(struct frame_unwind_table): Add "sniffer", delete "middle".
	(append_predicate): Add "sniffer" parameter, append the sniffer.
	(frame_unwind_init): Update append_predicate call.
	(frame_unwind_append_sniffer): New function.
	(frame_unwind_append_predicate): Update append_predicate call.
	(frame_unwind_find_by_frame): Replace frame_unwind_find_by_pc.
This commit is contained in:
Andrew Cagney 2003-07-15 17:35:00 +00:00
parent 0714963c79
commit e8a89fe278
6 changed files with 142 additions and 63 deletions
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43
gdb/frame-unwind.c
View file

@ -30,17 +30,21 @@ static struct gdbarch_data *frame_unwind_data;
struct frame_unwind_table
{
frame_unwind_p_ftype **p;
int middle;
frame_unwind_sniffer_ftype **sniffer;
int nr;
};
/* Append a predicate to the end of the table. */
static void
append_predicate (struct frame_unwind_table *table, frame_unwind_p_ftype *p)
append_predicate (struct frame_unwind_table *table, frame_unwind_p_ftype *p,
frame_unwind_sniffer_ftype *sniffer)
{
table->p = xrealloc (table->p, ((table->nr + 1)
* sizeof (frame_unwind_p_ftype *)));
table->sniffer = xrealloc (table->sniffer, ((table->nr + 1)
* sizeof (frame_unwind_sniffer_ftype *)));
table->p[table->nr] = p;
table->sniffer[table->nr] = sniffer;
table->nr++;
}
@ -48,7 +52,7 @@ static void *
frame_unwind_init (struct gdbarch *gdbarch)
{
struct frame_unwind_table *table = XCALLOC (1, struct frame_unwind_table);
append_predicate (table, dummy_frame_p);
append_predicate (table, dummy_frame_p, NULL);
return table;
}
@ -58,6 +62,7 @@ frame_unwind_free (struct gdbarch *gdbarch, void *data)
struct frame_unwind_table *table =
gdbarch_data (gdbarch, frame_unwind_data);
xfree (table->p);
xfree (table->sniffer);
xfree (table);
}
@ -74,15 +79,31 @@ frame_unwind_append_predicate (struct gdbarch *gdbarch,
table = frame_unwind_init (gdbarch);
set_gdbarch_data (gdbarch, frame_unwind_data, table);
}
append_predicate (table, p);
append_predicate (table, p, NULL);
}
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);
set_gdbarch_data (gdbarch, frame_unwind_data, table);
}
append_predicate (table, NULL, sniffer);
}
const struct frame_unwind *
frame_unwind_find_by_pc (struct gdbarch *gdbarch, CORE_ADDR pc)
frame_unwind_find_by_frame (struct frame_info *next_frame)
{
int i;
struct frame_unwind_table *table =
gdbarch_data (gdbarch, frame_unwind_data);
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
if (!DEPRECATED_USE_GENERIC_DUMMY_FRAMES)
/* Seriously old code. Don't even try to use this new mechanism.
(Note: The variable USE_GENERIC_DUMMY_FRAMES is deprecated, not
@ -91,7 +112,13 @@ frame_unwind_find_by_pc (struct gdbarch *gdbarch, CORE_ADDR pc)
return legacy_saved_regs_unwind;
for (i = 0; i < table->nr; i++)
{
const struct frame_unwind *desc = table->p[i] (pc);
const struct frame_unwind *desc;
if (table->p[i] != NULL)
desc = table->p[i] (frame_pc_unwind (next_frame));
else if (table->sniffer[i] != NULL)
desc = table->sniffer[i] (next_frame);
else
internal_error (__FILE__, __LINE__, "Missing sniffer?");
if (desc != NULL)
return desc;
}