| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* setjmp for Nios II. |
| 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
| 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 |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the 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 |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <sysdep.h> |
| 20 | #include <jmpbuf-offsets.h> |
| 21 | |
| 22 | .text |
| 23 | ENTRY(setjmp) |
| 24 | movi r5, 1 |
| 25 | br __sigsetjmp |
| 26 | END(setjmp) |
| 27 | |
| 28 | ENTRY(_setjmp) |
| 29 | mov r5, zero |
| 30 | br __sigsetjmp |
| 31 | END(_setjmp) |
| 32 | libc_hidden_def (_setjmp) |
| 33 | |
| 34 | /* Save the current program position in ENV and return 0. */ |
| 35 | ENTRY(__sigsetjmp) |
| 36 | #ifdef PTR_MANGLE |
| 37 | PTR_MANGLE_GUARD (r9) |
| 38 | #endif |
| 39 | stw r16, (JB_R16*4)(r4) |
| 40 | stw r17, (JB_R17*4)(r4) |
| 41 | stw r18, (JB_R18*4)(r4) |
| 42 | stw r19, (JB_R19*4)(r4) |
| 43 | stw r20, (JB_R20*4)(r4) |
| 44 | stw r21, (JB_R21*4)(r4) |
| 45 | stw r22, (JB_R22*4)(r4) |
| 46 | stw fp, (JB_FP*4)(r4) |
| 47 | #ifdef PTR_MANGLE |
| 48 | PTR_MANGLE (r6, ra, r9) |
| 49 | PTR_MANGLE (r7, sp, r9) |
| 50 | stw r6, (JB_RA*4)(r4) |
| 51 | stw r7, (JB_SP*4)(r4) |
| 52 | #else |
| 53 | stw ra, (JB_RA*4)(r4) |
| 54 | stw sp, (JB_SP*4)(r4) |
| 55 | #endif |
| 56 | #if IS_IN (rtld) |
| 57 | /* In ld.so we never save the signal mask. */ |
| 58 | mov r2, zero |
| 59 | ret |
| 60 | #else |
| 61 | /* Save the signal mask if requested. */ |
| 62 | #if defined(__PIC__) || defined(PIC) |
| 63 | nextpc r2 |
| 64 | 1: movhi r3, %hiadj(__sigjmp_save - 1b) |
| 65 | addi r3, r3, %lo(__sigjmp_save - 1b) |
| 66 | add r2, r2, r3 |
| 67 | jmp r2 |
| 68 | #else |
| 69 | jmpi __sigjmp_save |
| 70 | #endif |
| 71 | #endif |
| 72 | END (__sigsetjmp) |
| 73 | libc_hidden_def (__sigsetjmp) |