projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d4697bc9 | 1 | /* Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| 41bdb6e2 | 2 | This file is part of the GNU C Library. |
| 5ae3e846 | 3 | Contributed by Richard Henderson (rth@tamu.edu). |
| 28f540f4 | 4 | |
| c84142e8 | 5 | The GNU C Library is free software; you can redistribute it and/or |
| 41bdb6e2 AJ |
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. | |
| 28f540f4 | 9 | |
| c84142e8 UD |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| 28f540f4 | 14 | |
| 41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 28f540f4 | 18 | |
| 5ae3e846 | 19 | /* longjmp is implemented in terms of the setcontext trap on Linux/Sparc64. */ |
| 28f540f4 | 20 | |
| 5ae3e846 | 21 | #include <sysdep.h> |
| 28f540f4 | 22 | |
| 5ae3e846 | 23 | /* Offsets into the jmp_buf structure. */ |
| 28f540f4 | 24 | |
| 5ae3e846 UD |
25 | #define O_mask_was_saved 512 |
| 26 | #define O_gregs 32 | |
| 27 | #define O_g1 (O_gregs + 4*8) | |
| 28 | ||
| 29 | ||
| 30 | /* void longjmp (sigjmp_buf env, int val) */ | |
| 31 | ||
| e0ea3583 | 32 | ENTRY(__libc_siglongjmp) |
| 5ae3e846 UD |
33 | |
| 34 | /* Modify the context with the value we want to return. */ | |
| 35 | movre %o1, 1, %o1 | |
| 36 | stx %o1, [%o0 + O_g1] | |
| 37 | ||
| 38 | /* Let setcontext know if we want to modify the current sigmask. */ | |
| 39 | ld [%o0 + O_mask_was_saved], %o1 | |
| 40 | ||
| 41 | /* And bamf back to where we belong! */ | |
| 42 | ta 0x6f | |
| 43 | ||
| e0ea3583 | 44 | END(__libc_siglongjmp) |
| ca34d7a7 | 45 | |
| e0ea3583 UD |
46 | strong_alias(__libc_siglongjmp, __longjmp) |
| 47 | strong_alias(__libc_siglongjmp, __libc_longjmp) | |
| a4baf360 | 48 | libc_hidden_def (__libc_longjmp) |
| 1ab18a5b UD |
49 | weak_alias (__libc_siglongjmp, longjmp) |
| 50 | weak_alias (__libc_siglongjmp, _longjmp) | |
| 51 | weak_alias (__libc_siglongjmp, siglongjmp) |