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- /* Copyright (C) 1997, 1998 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
- /* Define the machine-dependent type `jmp_buf'. m68k version. */
- #ifndef _SETJMP_H
- # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
- #endif
- #include <signal.h>
- typedef struct
- {
- /* There are eight 4-byte data registers, but D0 is not saved. */
- long int __dregs[7];
- /* There are six 4-byte address registers, plus the FP and SP. */
- int *__aregs[6];
- int *__fp;
- int *__sp;
- #if defined __HAVE_68881__ || defined __HAVE_FPU__
- /* There are eight floating point registers which
- are saved in IEEE 96-bit extended format. */
- char __fpregs[8 * (96 / 8)];
- #endif
- } __jmp_buf[1];
- /* Test if longjmp to JMPBUF would unwind the frame
- containing a local variable at ADDRESS. */
- #define _JMPBUF_UNWINDS(jmpbuf, address) \
- ((void *) (address) < (void *) (jmpbuf)->__sp)
- /* Simple version of sigsetjmp and siglongjmp */
- __BEGIN_DECLS
- extern int __setjmp(__jmp_buf __buf);
- extern int __longjmp(__jmp_buf __buf, int __val);
- __END_DECLS
- #define longjmp(buf, val) __longjmp(buf, val)
- #define __sigsetjmp(env, savesigs) ((env)->__mask_was_saved = (savesigs), \
- sigprocmask(SIG_SETMASK, 0, &(env)->__saved_mask), \
- __setjmp((env)->__jmpbuf))
- #define siglongjmp(env, val) (((env)->__mask_was_saved ? \
- sigprocmask(SIG_SETMASK, &(env)->__saved_mask, 0) : 0), \
- __longjmp((env)->__jmpbuf, val))
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