1 /* Copyright (C) 1997-2024 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, see
16 <https://www.gnu.org/licenses/>. */
18 /* longjmp is implemented in terms of the setcontext trap on Linux/Sparc64. */
22 /* Offsets into the jmp_buf structure. */
24 #define O_mask_was_saved 512
26 #define O_g1 (O_gregs + 4*8)
29 /* void longjmp (sigjmp_buf env, int val) */
31 ENTRY(__libc_siglongjmp)
33 /* Modify the context with the value we want to return. */
37 /* Let setcontext know if we want to modify the current sigmask. */
38 ld [%o0 + O_mask_was_saved], %o1
40 /* And bamf back to where we belong! */
43 END(__libc_siglongjmp)
45 strong_alias(__libc_siglongjmp, __longjmp)
46 strong_alias(__libc_siglongjmp, __libc_longjmp)
47 weak_alias (__libc_siglongjmp, longjmp)
48 weak_alias (__libc_siglongjmp, _longjmp)
49 weak_alias (__libc_siglongjmp, siglongjmp)