| /* Copyright 2022-2024 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| .text |
| .globl main |
| .type main,#function |
| main: |
| .cfi_startproc |
| stp x29, x30, [sp, -16]! |
| .cfi_def_cfa sp, 16 |
| .cfi_offset x29, 0 |
| .cfi_offset x30, 8 |
| bl test_func |
| ldp x29, x30, [sp], 16 |
| .cfi_restore x29 |
| .cfi_restore x30 |
| .cfi_def_cfa sp, 0 |
| mov x0, 0 |
| ret |
| .cfi_endproc |
| |
| .globl test_func |
| test_func: |
| .cfi_startproc |
| // Unwind x30 to a different value |
| // CFA_val_expression x30 const2u 0x1234 |
| .cfi_escape 0x16, 30, 0x03, 0x0a, 0x34, 0x12 |
| // CFA_val_expression pc breg30 0 |
| .cfi_escape 0x16, 32, 0x02, 0x8e, 0x00 |
| mov x0, x30 |
| .cfi_register 32, x0 |
| mov x30, 0x1234 |
| ret x0 |
| .cfi_endproc |
| .section .note.GNU-stack,"",@progbits |
