1 /* Copyright (C) 1991, 1992, 1994, 1997, 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 /* Save the current program position in ENV and return 0. */
23 #if defined BSD_SETJMP
26 #elif defined BSD__SETJMP
30 __sigsetjmp (jmp_buf env, int savemask)
33 /* Save data registers D1 through D7. */
34 asm volatile ("movem%.l %/d1-%/d7, %0"
35 : : "m" (env[0].__jmpbuf[0].__dregs[0]));
37 /* Save return address in place of register A0. */
38 env[0].__jmpbuf[0].__aregs[0] = ((void **) &env)[-1];
40 /* Save address registers A1 through A5. */
41 asm volatile ("movem%.l %/a1-%/a5, %0"
42 : : "m" (env[0].__jmpbuf[0].__aregs[1]));
44 /* Save caller's FP, not our own. */
45 env[0].__jmpbuf[0].__fp = ((void **) &env)[-2];
47 /* Save caller's SP, not our own. */
48 env[0].__jmpbuf[0].__sp = (void *) &env;
50 #if defined __HAVE_68881__ || defined __HAVE_FPU__
51 /* Save floating-point (68881) registers FP0 through FP7. */
52 asm volatile ("fmovem%.x %/fp0-%/fp7, %0"
53 : : "m" (env[0].__jmpbuf[0].__fpregs[0]));
56 #if defined BSD_SETJMP || defined BSD__SETJMP
59 /* Save the signal mask if requested. */
60 return __sigjmp_save (env, savemask);