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authorRoland McGrath <roland@hack.frob.com>2014-07-03 22:19:41 -0700
committerMike Frysinger <vapier@gentoo.org>2014-08-04 10:00:52 -0400
commit43a94c647d037b62b55a67f53304a2d3f9d7f66c (patch)
tree35e5a15704c7cb84091ff1ba99c5f1e6644e1c31 /sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c
parent8f3c1fa42da006fba38b8c485f6dd149b24d5e23 (diff)
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IA64: Consolidate nptl/ subdirectories under linux/...
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c b/sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c
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+++ b/sysdeps/unix/sysv/linux/ia64/unwind_longjmp.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991-2014 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/>. */
+
+#include <stddef.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <pthreadP.h>
+#include <jmpbuf-unwind.h>
+
+extern void __sigstack_longjmp (__jmp_buf, int)
+ __attribute__ ((noreturn));
+
+/* Like __libc_siglongjmp(), but safe for crossing from alternate
+ signal stack to normal stack. Needed by NPTL. */
+void
+__libc_unwind_longjmp (sigjmp_buf env, int val)
+{
+ /* Perform any cleanups needed by the frames being unwound. */
+ __pthread_cleanup_upto (env->__jmpbuf, CURRENT_STACK_FRAME);
+
+ if (env[0].__mask_was_saved)
+ /* Restore the saved signal mask. */
+ (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask,
+ (sigset_t *) NULL);
+
+ /* Call the machine-dependent function to restore machine state. */
+ __sigstack_longjmp (env[0].__jmpbuf, val ?: 1);
+}
+hidden_def (__libc_unwind_longjmp)