/* Virtual tail call frames unwinder for GDB.
- Copyright (C) 2010-2013 Free Software Foundation, Inc.
+ Copyright (C) 2010-2015 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_assert.h"
#include "frame.h"
#include "dwarf2-frame-tailcall.h"
#include "dwarf2loc.h"
#include "frame-unwind.h"
#include "block.h"
#include "hashtab.h"
-#include "exceptions.h"
#include "gdbtypes.h"
#include "regcache.h"
#include "value.h"
static struct tailcall_cache *
cache_new_ref1 (struct frame_info *next_bottom_frame)
{
- struct tailcall_cache *cache;
+ struct tailcall_cache *cache = XCNEW (struct tailcall_cache);
void **slot;
- cache = xzalloc (sizeof (*cache));
-
cache->next_bottom_frame = next_bottom_frame;
cache->refc = 1;
return chain->length;
chain_levels = chain->callers + chain->callees;
- gdb_assert (chain_levels < chain->length);
+ gdb_assert (chain_levels <= chain->length);
return chain_levels;
}
struct gdbarch *prev_gdbarch;
struct call_site_chain *chain = NULL;
struct tailcall_cache *cache;
- volatile struct gdb_exception except;
gdb_assert (*tailcall_cachep == NULL);
- this_pc = get_frame_pc (this_frame);
+ /* PC may be after the function if THIS_FRAME calls noreturn function,
+ get_frame_address_in_block will decrease it by 1 in such case. */
+ this_pc = get_frame_address_in_block (this_frame);
/* Catch any unwinding errors. */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
int sp_regnum;
prev_sp = frame_unwind_register_unsigned (this_frame, sp_regnum);
prev_sp_p = 1;
}
- if (except.reason < 0)
+ CATCH (except, RETURN_MASK_ERROR)
{
if (entry_values_debug)
exception_print (gdb_stdout, except);
return;
}
+ END_CATCH
/* Ambiguous unwind or unambiguous unwind verified as matching. */
if (chain == NULL || chain->length == 0)