| George Burgess IV | 6cb0687 | 2017-07-21 13:28:42 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <private/bionic_asm.h> |
| 30 | |
| 31 | ENTRY(__memcpy_chk) |
| 32 | cmp x2, x3 |
| Evgenii Stepanov | 00d087c | 2018-08-31 14:27:32 -0700 | [diff] [blame] | 33 | // Direct b.ls memcpy may not have enough range |
| Elliott Hughes | 6937761 | 2024-04-08 16:38:41 +0000 | [diff] [blame] | 34 | b.hi L(__memcpy_chk_fail_trampoline) |
| Evgenii Stepanov | 00d087c | 2018-08-31 14:27:32 -0700 | [diff] [blame] | 35 | b memcpy |
| George Burgess IV | 6cb0687 | 2017-07-21 13:28:42 -0700 | [diff] [blame] | 36 | |
| Elliott Hughes | 6937761 | 2024-04-08 16:38:41 +0000 | [diff] [blame] | 37 | L(__memcpy_chk_fail_trampoline): |
| George Burgess IV | 6cb0687 | 2017-07-21 13:28:42 -0700 | [diff] [blame] | 38 | // Preserve for accurate backtrace. |
| 39 | stp x29, x30, [sp, -16]! |
| 40 | .cfi_def_cfa_offset 16 |
| 41 | .cfi_rel_offset x29, 0 |
| 42 | .cfi_rel_offset x30, 8 |
| 43 | |
| 44 | bl __memcpy_chk_fail |
| 45 | END(__memcpy_chk) |
| Tamas Petz | f5bdee7 | 2020-08-31 15:09:40 +0200 | [diff] [blame] | 46 | |
| 47 | NOTE_GNU_PROPERTY() |