| 1 | /* Copyright (C) 2009-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | .section .rodata.str1.1,"aMS" ,@progbits,1 |
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| 19 | .type longjmp_msg,@object |
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| 20 | longjmp_msg: |
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| 21 | .string "longjmp causes uninitialized stack frame" |
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| 22 | .size longjmp_msg, .-longjmp_msg |
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| 23 | .text |
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| 24 | |
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| 25 | #define __longjmp ____longjmp_chk |
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| 26 | |
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| 27 | #ifdef PIC |
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| 28 | # define CALL_FAIL \ |
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| 29 | mov.l .Lfail, r1; \ |
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| 30 | mov.l .Lstr, r4; \ |
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| 31 | mov.l r12, @-r15; \ |
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| 32 | cfi_remember_state; \ |
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| 33 | cfi_adjust_cfa_offset (4); \ |
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| 34 | cfi_rel_offset (r12, 0); \ |
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| 35 | mova .Lgot, r0; \ |
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| 36 | mov.l .Lgot, r12; \ |
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| 37 | add r0, r12; \ |
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| 38 | sts.l pr, @-r15; \ |
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| 39 | cfi_adjust_cfa_offset (4); \ |
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| 40 | cfi_rel_offset (pr, 0); \ |
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| 41 | bsrf r1; \ |
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| 42 | add r12, r4; \ |
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| 43 | /* Unreachable. */ \ |
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| 44 | .Lfail0: \ |
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| 45 | .align 2; \ |
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| 46 | .Lgot: \ |
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| 47 | .long _GLOBAL_OFFSET_TABLE_; \ |
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| 48 | .Lstr: \ |
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| 49 | .long longjmp_msg@GOTOFF; \ |
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| 50 | .Lfail: \ |
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| 51 | .long __GI___fortify_fail@PLT-(.Lfail0-.); \ |
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| 52 | cfi_restore_state; |
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| 53 | #else |
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| 54 | # define CALL_FAIL \ |
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| 55 | mov.l .Lfail, r1; \ |
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| 56 | mov.l .Lstr, r4; \ |
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| 57 | sts.l pr, @-r15; \ |
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| 58 | cfi_remember_state; \ |
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| 59 | cfi_adjust_cfa_offset (4); \ |
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| 60 | cfi_rel_offset (pr, 0); \ |
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| 61 | jsr @r1; \ |
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| 62 | nop; \ |
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| 63 | /* Unreachable. */ \ |
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| 64 | .align 2; \ |
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| 65 | .Lstr: \ |
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| 66 | .long longjmp_msg; \ |
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| 67 | .Lfail: \ |
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| 68 | .long __fortify_fail; \ |
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| 69 | cfi_restore_state; |
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| 70 | #endif |
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| 71 | |
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| 72 | #define CHECK_SP(reg) \ |
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| 73 | cmp/hs r15, reg; \ |
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| 74 | bt .Lok; \ |
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| 75 | CALL_FAIL \ |
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| 76 | .Lok: |
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| 77 | |
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| 78 | #include <__longjmp.S> |
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| 79 | |
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