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/* Copyright (C) 1991, 1992, 1994 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* Put these global register declarations first, because we get an error if
they come after any function definition, including inlines which might
be in some header. */
#define REGS \
REG (bx);\
REG (si);\
REG (di)
#define REG(xx) register long int xx asm (#xx)
REGS;
#undef REG
#include <errno.h>
#include <setjmp.h>
/* Save the current program position in ENV and return 0. */
int
__sigsetjmp (jmp_buf env, int savemask)
{
/* Save the general registers. */
#define REG(xx) env[0].__jmpbuf[0].__##xx = xx
REGS;
#undef REG
/* Save the return PC. */
env[0].__jmpbuf[0].__pc = ((void **) &env)[-1];
/* Save caller's FP, not our own. */
env[0].__jmpbuf[0].__bp = ((void **) &env)[-2];
/* Save caller's SP, not our own. */
env[0].__jmpbuf[0].__sp = (void *) &env;
/* Save the signal mask if requested. */
return __sigjmp_save (env, savemask);
}
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