summaryrefslogtreecommitdiff
path: root/sysdeps/generic/backtrace.c
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/generic/backtrace.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
Diffstat (limited to 'sysdeps/generic/backtrace.c')
-rw-r--r--sysdeps/generic/backtrace.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/sysdeps/generic/backtrace.c b/sysdeps/generic/backtrace.c
deleted file mode 100644
index 6a3336c6d2..0000000000
--- a/sysdeps/generic/backtrace.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/* Return backtrace of current program state. Generic version.
- Copyright (C) 1998, 2000, 2002, 2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <execinfo.h>
-#include <signal.h>
-#include <frame.h>
-#include <sigcontextinfo.h>
-#include <bp-checks.h>
-#include <ldsodefs.h>
-
-/* This implementation assumes a stack layout that matches the defaults
- used by gcc's `__builtin_frame_address' and `__builtin_return_address'
- (FP is the frame pointer register):
-
- +-----------------+ +-----------------+
- FP -> | previous FP --------> | previous FP ------>...
- | | | |
- | return address | | return address |
- +-----------------+ +-----------------+
-
- */
-
-/* Get some notion of the current stack. Need not be exactly the top
- of the stack, just something somewhere in the current frame. */
-#ifndef CURRENT_STACK_FRAME
-# define CURRENT_STACK_FRAME ({ char __csf; &__csf; })
-#endif
-
-/* By default we assume that the stack grows downward. */
-#ifndef INNER_THAN
-# define INNER_THAN <
-#endif
-
-/* By default assume the `next' pointer in struct layout points to the
- next struct layout. */
-#ifndef ADVANCE_STACK_FRAME
-# define ADVANCE_STACK_FRAME(next) BOUNDED_1 ((struct layout *) (next))
-#endif
-
-/* By default, the frame pointer is just what we get from gcc. */
-#ifndef FIRST_FRAME_POINTER
-# define FIRST_FRAME_POINTER __builtin_frame_address (0)
-#endif
-
-int
-__backtrace (array, size)
- void **array;
- int size;
-{
- struct layout *current;
- void *__unbounded top_frame;
- void *__unbounded top_stack;
- int cnt = 0;
-
- top_frame = FIRST_FRAME_POINTER;
- top_stack = CURRENT_STACK_FRAME;
-
- /* We skip the call to this function, it makes no sense to record it. */
- current = BOUNDED_1 ((struct layout *) top_frame);
- while (cnt < size)
- {
- if ((void *) current INNER_THAN top_stack
- || !((void *) current INNER_THAN __libc_stack_end))
- /* This means the address is out of range. Note that for the
- toplevel we see a frame pointer with value NULL which clearly is
- out of range. */
- break;
-
- array[cnt++] = current->return_address;
-
- current = ADVANCE_STACK_FRAME (current->next);
- }
-
- return cnt;
-}
-weak_alias (__backtrace, backtrace)