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authorJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
commite84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch)
treedff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/mips/bsd-_setjmp.S
parent75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff)
parente64ac02c24b43659048622714afdc92fedf561fa (diff)
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/mips/bsd-_setjmp.S')
-rw-r--r--ports/sysdeps/mips/bsd-_setjmp.S42
1 files changed, 42 insertions, 0 deletions
diff --git a/ports/sysdeps/mips/bsd-_setjmp.S b/ports/sysdeps/mips/bsd-_setjmp.S
new file mode 100644
index 0000000000..91724b9f0f
--- /dev/null
+++ b/ports/sysdeps/mips/bsd-_setjmp.S
@@ -0,0 +1,42 @@
+/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. MIPS version.
+ Copyright (C) 1996, 1997, 2000, 2002 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/>. */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
+ We cannot do it in C because it must be a tail-call, so frame-unwinding
+ in setjmp doesn't clobber the state restored by longjmp. */
+
+#include <sysdep.h>
+
+#ifdef __PIC__
+ .option pic2
+#endif
+ENTRY (_setjmp)
+#ifdef __PIC__
+ .set noreorder
+ .cpload t9
+ .set reorder
+ la t9, C_SYMBOL_NAME (__sigsetjmp)
+#endif
+ move a1,zero /* Pass a second argument of zero. */
+#ifdef __PIC__
+ jr t9
+#else
+ j C_SYMBOL_NAME (__sigsetjmp)
+#endif
+ .end _setjmp
+libc_hidden_def (_setjmp)