| 1 | /* longjmp for Nios II. |
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| 2 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public License as |
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| 7 | published by the Free Software Foundation; either version 2.1 of the |
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| 8 | License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library. If not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <sysdep.h> |
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| 20 | #include <pointer_guard.h> |
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| 21 | #include <jmpbuf-offsets.h> |
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| 22 | |
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| 23 | /* __longjmp(jmpbuf, val) */ |
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| 24 | |
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| 25 | ENTRY (__longjmp) |
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| 26 | mov r2, r5 |
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| 27 | bne r5, zero, 1f |
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| 28 | movi r2, 1 |
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| 29 | 1: |
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| 30 | #ifdef PTR_DEMANGLE |
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| 31 | PTR_MANGLE_GUARD (r3) |
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| 32 | ldw r5, (JB_RA*4)(r4) |
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| 33 | ldw r6, (JB_SP*4)(r4) |
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| 34 | PTR_DEMANGLE (r5, r5, r3) |
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| 35 | PTR_DEMANGLE (r6, r6, r3) |
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| 36 | #endif |
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| 37 | |
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| 38 | cfi_def_cfa (r4, 0) |
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| 39 | cfi_offset (r16, JB_R16*4) |
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| 40 | cfi_offset (r17, JB_R17*4) |
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| 41 | cfi_offset (r18, JB_R18*4) |
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| 42 | cfi_offset (r19, JB_R19*4) |
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| 43 | cfi_offset (r20, JB_R20*4) |
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| 44 | cfi_offset (r21, JB_R21*4) |
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| 45 | cfi_offset (r22, JB_R22*4) |
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| 46 | cfi_offset (fp, JB_FP*4) |
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| 47 | #ifdef PTR_DEMANGLE |
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| 48 | cfi_register (ra, r5) |
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| 49 | cfi_register (sp, r7) |
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| 50 | #else |
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| 51 | cfi_offset (ra, JB_RA*4) |
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| 52 | cfi_offset (sp, JB_SP*4) |
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| 53 | #endif |
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| 54 | ldw r16, (JB_R16*4)(r4) |
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| 55 | ldw r17, (JB_R17*4)(r4) |
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| 56 | ldw r18, (JB_R18*4)(r4) |
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| 57 | ldw r19, (JB_R19*4)(r4) |
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| 58 | ldw r20, (JB_R20*4)(r4) |
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| 59 | ldw r21, (JB_R21*4)(r4) |
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| 60 | ldw r22, (JB_R22*4)(r4) |
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| 61 | ldw fp, (JB_FP*4)(r4) |
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| 62 | #ifdef PTR_DEMANGLE |
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| 63 | mov ra, r5 |
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| 64 | mov sp, r6 |
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| 65 | #else |
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| 66 | ldw ra, (JB_RA*4)(r4) |
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| 67 | ldw sp, (JB_SP*4)(r4) |
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| 68 | #endif |
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| 69 | cfi_same_value (r16) |
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| 70 | cfi_same_value (r17) |
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| 71 | cfi_same_value (r18) |
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| 72 | cfi_same_value (r19) |
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| 73 | cfi_same_value (r20) |
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| 74 | cfi_same_value (r21) |
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| 75 | cfi_same_value (r22) |
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| 76 | cfi_same_value (fp) |
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| 77 | cfi_same_value (ra) |
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| 78 | cfi_same_value (sp) |
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| 79 | |
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| 80 | ret |
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| 81 | END (__longjmp) |
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| 82 | |
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