1 /* Copyright (C) 1997, 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Richard Henderson (rth@tamu.edu).
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 /* __sigsetjmp is implemented in terms of the getcontext trap on
25 /* Offsets into the jmp_buf structure. */
27 #define O_mask_was_saved 512
29 #define O_g1 (O_gregs + 4*8)
31 /* int _setjmp(jmp_buf) */
37 libc_hidden_def (_setjmp)
39 /* int setjmp(jmp_buf) */
45 /* int __sigsetjmp(jmp_buf, savemask) */
50 /* Record whether the user is intending to save the sigmask. */
51 st %o1, [%o0 + O_mask_was_saved]
53 /* Load up our return value, as longjmp is going to override
54 the jmp_buf on its way back. */
57 /* And call getcontext! */