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authorRoland McGrath <roland@hack.frob.com>2014-07-31 14:00:33 -0700
committerRoland McGrath <roland@hack.frob.com>2014-07-31 14:00:33 -0700
commitf61a113fe0f703c19af20f54d65acfbb203b726a (patch)
tree7b8bdcbe06ce14af164f1dda44dfa14a1764d596 /sysdeps/generic/safe-fatal.h
parent9fe7e787adc4f41201c441014fbad318eaae6f80 (diff)
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Add __safe_fatal and use it in __pthread_unwind forwarder fallback.
Diffstat (limited to 'sysdeps/generic/safe-fatal.h')
-rw-r--r--sysdeps/generic/safe-fatal.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/generic/safe-fatal.h b/sysdeps/generic/safe-fatal.h
new file mode 100644
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+++ b/sysdeps/generic/safe-fatal.h
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+/* Crash the process immediately, without possibility of deadlock. Generic.
+ Copyright (C) 2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SAFE_FATAL_H
+#define _SAFE_FATAL_H 1
+
+#include <abort-instr.h>
+
+static inline void
+__safe_fatal (void)
+{
+#ifdef ABORT_INSTRUCTION
+ /* This is not guaranteed to be free from the possibility of deadlock,
+ since it might generate a signal that can be caught. But it's better
+ than nothing. */
+ ABORT_INSTRUCTION;
+#else
+# error Need an OS-specific or machine-specific safe-fatal.h
+#endif
+}
+
+#endif /* safe-fatal.h */