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authorMike Frysinger <vapier@gentoo.org>2014-02-15 22:07:25 -0500
committerMike Frysinger <vapier@gentoo.org>2014-02-16 01:12:38 -0500
commitc70a4b1db0cf5e813ae24b0fa96a352399eb6edf (patch)
tree5a36b0f0955682ae5232907d04fdf68589990783 /sysdeps/ia64/jmpbuf-unwind.h
parent591aeaf7a99bc9aa9179f013114d92496952dced (diff)
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ia64: relocate out of ports/ subdir
Diffstat (limited to 'sysdeps/ia64/jmpbuf-unwind.h')
-rw-r--r--sysdeps/ia64/jmpbuf-unwind.h43
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diff --git a/sysdeps/ia64/jmpbuf-unwind.h b/sysdeps/ia64/jmpbuf-unwind.h
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+/* Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <setjmp.h>
+#include <stdint.h>
+#include <unwind.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame containing a local
+ variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(_jmpbuf, _address, _demangle) \
+ ((void *) (_address) < (void *) (((long int *) _jmpbuf)[0]))
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ ({ uintptr_t _cfa = (uintptr_t) _Unwind_GetCFA (_context) - (_adj); \
+ (_cfa < (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj) \
+ || (_cfa == (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj) \
+ && (uintptr_t) _Unwind_GetBSP (_context) - (_adj) \
+ >= (uintptr_t)(((long *)(_jmpbuf))[17]) - (_adj))); \
+ })
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t)(_address) - (_adj) < (uintptr_t)(((long *)_jmpbuf)[0]) - (_adj))
+
+/* We use a longjmp() which can cross from the alternate signal-stack
+ to the normal stack. */
+extern void __libc_unwind_longjmp (sigjmp_buf env, int val)
+ __attribute__ ((noreturn));
+hidden_proto (__libc_unwind_longjmp)