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authorUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
commit9d13fb2413921c713f83efe331e8e4d219c62c6b (patch)
tree2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /sysdeps/generic/abort.c
parentb6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff)
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Moved to csu/errno-loc.c.
Diffstat (limited to 'sysdeps/generic/abort.c')
-rw-r--r--sysdeps/generic/abort.c140
1 files changed, 0 insertions, 140 deletions
diff --git a/sysdeps/generic/abort.c b/sysdeps/generic/abort.c
deleted file mode 100644
index 00788f22c7..0000000000
--- a/sysdeps/generic/abort.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/* Copyright (C) 1991,93,95,96,97,98,2001,02 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- 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 <bits/libc-lock.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-/* Try to get a machine dependent instruction which will make the
- program crash. This is used in case everything else fails. */
-#include <abort-instr.h>
-#ifndef ABORT_INSTRUCTION
-/* No such instruction is available. */
-# define ABORT_INSTRUCTION
-#endif
-
-#ifdef USE_IN_LIBIO
-# include <libio/libioP.h>
-# define fflush(s) _IO_flush_all_lockp (0)
-#endif
-
-/* We must avoid to run in circles. Therefore we remember how far we
- already got. */
-static int stage;
-
-/* We should be prepared for multiple threads trying to run abort. */
-__libc_lock_define_initialized_recursive (static, lock);
-
-
-/* Cause an abnormal program termination with core-dump. */
-void
-abort (void)
-{
- struct sigaction act;
- sigset_t sigs;
-
- /* First acquire the lock. */
- __libc_lock_lock_recursive (lock);
-
- /* Now it's for sure we are alone. But recursive calls are possible. */
-
- /* Unlock SIGABRT. */
- if (stage == 0)
- {
- ++stage;
- if (__sigemptyset (&sigs) == 0 &&
- __sigaddset (&sigs, SIGABRT) == 0)
- __sigprocmask (SIG_UNBLOCK, &sigs, (sigset_t *) NULL);
- }
-
- /* Flush all streams. We cannot close them now because the user
- might have registered a handler for SIGABRT. */
- if (stage == 1)
- {
- ++stage;
- fflush (NULL);
- }
-
- /* Send signal which possibly calls a user handler. */
- if (stage == 2)
- {
- /* This stage is special: we must allow repeated calls of
- `abort' when a user defined handler for SIGABRT is installed.
- This is risky since the `raise' implementation might also
- fail but I don't see another possibility. */
- int save_stage = stage;
-
- stage = 0;
- __libc_lock_unlock_recursive (lock);
-
- raise (SIGABRT);
-
- __libc_lock_lock_recursive (lock);
- stage = save_stage + 1;
- }
-
- /* There was a handler installed. Now remove it. */
- if (stage == 3)
- {
- ++stage;
- memset (&act, '\0', sizeof (struct sigaction));
- act.sa_handler = SIG_DFL;
- __sigfillset (&act.sa_mask);
- act.sa_flags = 0;
- __sigaction (SIGABRT, &act, NULL);
- }
-
- /* Now close the streams which also flushes the output the user
- defined handler might has produced. */
- if (stage == 4)
- {
- ++stage;
- __fcloseall ();
- }
-
- /* Try again. */
- if (stage == 5)
- {
- ++stage;
- raise (SIGABRT);
- }
-
- /* Now try to abort using the system specific command. */
- if (stage == 6)
- {
- ++stage;
- ABORT_INSTRUCTION;
- }
-
- /* If we can't signal ourselves and the abort instruction failed, exit. */
- if (stage == 7)
- {
- ++stage;
- _exit (127);
- }
-
- /* If even this fails try to use the provided instruction to crash
- or otherwise make sure we never return. */
- while (1)
- /* Try for ever and ever. */
- ABORT_INSTRUCTION;
-}
-libc_hidden_def (abort)