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/* Copyright (C) 2003, 2004, 2005 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>
static inline uintptr_t __attribute__ ((unused))
_jmpbuf_sp (__jmp_buf regs, int i)
{
uintptr_t sp = ((unsigned long int *) regs)[i];
#ifdef PTR_DEMANGLE
PTR_DEMANGLE (sp);
#endif
return sp;
}
#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
({ uintptr_t _cfa = (uintptr_t) _Unwind_GetCFA (_context) - (_adj); \
(_cfa < _jmpbuf_sp (_jmpbuf, 0) - (_adj) \
|| (_cfa == (uintptr_t)(((long *)(_jmpbuf))[0]) - (_adj) \
&& ((uintptr_t) _Unwind_GetBSP (_context) - (_adj) \
>= _jmpbuf_sp (_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)
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