projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d614a753 | 1 | /* Copyright (C) 1997-2020 Free Software Foundation, Inc. |
| 554066b8 MS |
2 | |
| 3 | This file is part of the GNU C Library. | |
| 4 | ||
| 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 License as | |
| 7 | published by the Free Software Foundation; either version 2.1 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 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. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 16 | License along with the GNU C Library. If not, see | |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 554066b8 MS |
18 | |
| 19 | #include <sysdep.h> | |
| 20 | #include <jmpbuf-offsets.h> | |
| 140cc7ab | 21 | #include <stap-probe.h> |
| 554066b8 MS |
22 | |
| 23 | /* Keep traditional entry points in with sigsetjmp(). */ | |
| 24 | ENTRY (setjmp) | |
| 25 | mov x1, #1 | |
| 26 | b 1f | |
| 27 | END (setjmp) | |
| 28 | ||
| 29 | ENTRY (_setjmp) | |
| 30 | mov x1, #0 | |
| 31 | b 1f | |
| 32 | END (_setjmp) | |
| 33 | libc_hidden_def (_setjmp) | |
| 34 | ||
| 35 | ENTRY (__sigsetjmp) | |
| 389d1f1b | 36 | DELOUSE (0) |
| 554066b8 MS |
37 | |
| 38 | 1: | |
| 39 | stp x19, x20, [x0, #JB_X19<<3] | |
| 40 | stp x21, x22, [x0, #JB_X21<<3] | |
| 41 | stp x23, x24, [x0, #JB_X23<<3] | |
| 42 | stp x25, x26, [x0, #JB_X25<<3] | |
| 43 | stp x27, x28, [x0, #JB_X27<<3] | |
| 9188b681 VK |
44 | |
| 45 | #ifdef PTR_MANGLE | |
| 389d1f1b | 46 | PTR_MANGLE (4, 30, 3, 2) |
| 9188b681 VK |
47 | stp x29, x4, [x0, #JB_X29<<3] |
| 48 | #else | |
| 554066b8 | 49 | stp x29, x30, [x0, #JB_X29<<3] |
| 9188b681 | 50 | #endif |
| 140cc7ab VK |
51 | /* setjmp probe takes 3 arguments, address of jump buffer |
| 52 | first argument (8@x0), return value second argument (-4@x1), | |
| 53 | and target address (8@x30), respectively. */ | |
| 54 | LIBC_PROBE (setjmp, 3, 8@x0, -4@x1, 8@x30) | |
| 554066b8 MS |
55 | stp d8, d9, [x0, #JB_D8<<3] |
| 56 | stp d10, d11, [x0, #JB_D10<<3] | |
| 57 | stp d12, d13, [x0, #JB_D12<<3] | |
| 58 | stp d14, d15, [x0, #JB_D14<<3] | |
| 9188b681 VK |
59 | #ifdef PTR_MANGLE |
| 60 | mov x4, sp | |
| 389d1f1b | 61 | PTR_MANGLE (5, 4, 3, 2) |
| 9188b681 VK |
62 | str x5, [x0, #JB_SP<<3] |
| 63 | #else | |
| e39adf43 AS |
64 | mov x2, sp |
| 65 | str x2, [x0, #JB_SP<<3] | |
| 9188b681 | 66 | #endif |
| a3848485 | 67 | #if IS_IN (rtld) |
| e39adf43 AS |
68 | /* In ld.so we never save the signal mask */ |
| 69 | mov w0, #0 | |
| 70 | RET | |
| 71 | #else | |
| 554066b8 | 72 | b C_SYMBOL_NAME(__sigjmp_save) |
| e39adf43 | 73 | #endif |
| 554066b8 MS |
74 | END (__sigsetjmp) |
| 75 | hidden_def (__sigsetjmp) |