82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
|
/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
|
||
|
|
2000 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GNU CC.
|
||
|
|
|
||
|
|
GNU CC is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
any later version.
|
||
|
|
|
||
|
|
GNU CC is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with GNU CC; see the file COPYING. If not, write to
|
||
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||
|
|
Boston, MA 02111-1307, USA. */
|
||
|
|
|
||
|
|
/* As a special exception, if you link this library with other files,
|
||
|
|
some of which are compiled with GCC, to produce an executable,
|
||
|
|
this library does not by itself cause the resulting executable
|
||
|
|
to be covered by the GNU General Public License.
|
||
|
|
This exception does not however invalidate any other reasons why
|
||
|
|
the executable file might be covered by the GNU General Public License. */
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <memory.h>
|
||
|
|
|
||
|
|
#define IA64_UNWIND_INFO
|
||
|
|
#include "ia64-frame.h"
|
||
|
|
|
||
|
|
static int
|
||
|
|
ia64_backtrace_helper (void **array, void *throw_pc,
|
||
|
|
ia64_frame_state *throw_frame,
|
||
|
|
ia64_frame_state *frame, void *bsp, int size)
|
||
|
|
{
|
||
|
|
void *pc = NULL;
|
||
|
|
int frame_count = 0;
|
||
|
|
unwind_info_ptr *info;
|
||
|
|
|
||
|
|
asm volatile ("flushrs"); /* Make the local register stacks available. */
|
||
|
|
|
||
|
|
/* Start at our stack frame, get our state. */
|
||
|
|
info = build_ia64_frame_state (throw_pc, throw_frame, bsp, NULL);
|
||
|
|
|
||
|
|
memcpy (frame, throw_frame, sizeof (*frame));
|
||
|
|
|
||
|
|
while (info && frame_count < size)
|
||
|
|
{
|
||
|
|
pc = array[frame_count++] = get_real_reg_value (&frame->rp);
|
||
|
|
--pc;
|
||
|
|
bsp = calc_caller_bsp
|
||
|
|
((long)get_real_reg_value (&frame->pfs), frame->my_bsp);
|
||
|
|
info = build_ia64_frame_state (pc, frame, bsp, NULL);
|
||
|
|
if (frame->rp.loc_type == IA64_UNW_LOC_TYPE_NONE) /* We've finished. */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return frame_count;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
_Jv_ia64_backtrace (void **array, int size)
|
||
|
|
{
|
||
|
|
ia64_frame_state my_frame;
|
||
|
|
ia64_frame_state originator; /* For the context handler is in. */
|
||
|
|
void *bsp;
|
||
|
|
|
||
|
|
/* Do any necessary initialization to access arbitrary stack frames.
|
||
|
|
This forces gcc to save memory in our stack frame for saved
|
||
|
|
registers. */
|
||
|
|
__builtin_unwind_init ();
|
||
|
|
|
||
|
|
label_ia64:
|
||
|
|
bsp = __builtin_ia64_bsp ();
|
||
|
|
|
||
|
|
return ia64_backtrace_helper (array, &&label_ia64, &my_frame,
|
||
|
|
&originator, bsp, size);
|
||
|
|
}
|