| 1 | /* longjmp for C-SKY ABIV2. |
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| 2 | Copyright (C) 2018-2024 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 |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the 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 | |
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| 22 | ENTRY (__longjmp) |
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| 23 | mov a2, a0 |
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| 24 | mov a0, a1 /* Get the return value in place. */ |
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| 25 | cmpnei a0, 0 |
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| 26 | bt have_return |
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| 27 | movi a0, 1 /* Can't let setjmp() return zero! */ |
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| 28 | have_return: |
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| 29 | #ifdef CHECK_SP |
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| 30 | ldw r10, (a2, 0) /* Jmpbuf's sp. */ |
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| 31 | # ifdef PTR_MANGLE |
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| 32 | PTR_DEMANGLE (r10, r10, a3) |
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| 33 | # endif |
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| 34 | CHECK_SP (r10) |
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| 35 | #endif |
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| 36 | ldw sp, (a2, 0) |
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| 37 | ldw lr, (a2, 4) |
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| 38 | ldw r4, (a2, 8) |
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| 39 | ldw r5, (a2, 12) |
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| 40 | ldw r6, (a2, 16) |
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| 41 | ldw r7, (a2, 20) |
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| 42 | ldw r8, (a2, 24) |
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| 43 | ldw r9, (a2, 28) |
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| 44 | ldw r10, (a2, 32) |
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| 45 | ldw r11, (a2, 36) |
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| 46 | ldw r16, (a2, 40) |
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| 47 | ldw r17, (a2, 44) |
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| 48 | ldw r26, (a2, 48) |
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| 49 | ldw r27, (a2, 52) |
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| 50 | ldw r28, (a2, 56) |
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| 51 | ldw r29, (a2, 60) |
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| 52 | ldw r30, (a2, 64) |
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| 53 | ldw r31, (a2, 68) |
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| 54 | addi a2, 72 |
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| 55 | |
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| 56 | #ifdef PTR_MANGLE |
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| 57 | PTR_DEMANGLE (sp, sp, a3) |
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| 58 | PTR_DEMANGLE2 (lr, lr, a3) |
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| 59 | #endif |
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| 60 | jmp lr |
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| 61 | |
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| 62 | END (__longjmp) |
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| 63 | |
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