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authorRoland McGrath <roland@gnu.org>2006-01-10 08:23:51 +0000
committerRoland McGrath <roland@gnu.org>2006-01-10 08:23:51 +0000
commitde59a2917979a97c5c80fd2d78acc48152e87d6d (patch)
tree84b297f9ff8fbbe5f37e0951b3830552f836e606 /sysdeps/x86_64/jmpbuf-unwind.h
parent4d99c878ff5b38d5cd1af3b0832977c30db1d296 (diff)
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* sysdeps/alpha/jmpbuf-unwind.h: New file, moved from nptl/.
* sysdeps/i386/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/mips/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/powerpc/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/s390/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/sh/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/sparc/sparc32/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/sparc/sparc64/jmpbuf-unwind.h: New file, moved from nptl/. * sysdeps/x86_64/jmpbuf-unwind.h: New file, moved from nptl/.
Diffstat (limited to 'sysdeps/x86_64/jmpbuf-unwind.h')
-rw-r--r--sysdeps/x86_64/jmpbuf-unwind.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/x86_64/jmpbuf-unwind.h b/sysdeps/x86_64/jmpbuf-unwind.h
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+/* Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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 <setjmp.h>
+#include <stdint.h>
+#include <unwind.h>
+#include <sysdep.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ uintptr_t sp = regs[JB_RSP];
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (sp);
+#endif
+ return sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+
+/* We use the normal longjmp for unwinding. */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)