| /* Copyright 2018-2024 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/>. */ |
| |
| .section .note.GNU-stack,"",%progbits |
| |
| .text |
| .global callee |
| callee: |
| /* Standard prologue. */ |
| .cfi_startproc |
| push %rbp |
| .cfi_def_cfa rbp, 16 |
| mov %rsp, %rbp |
| |
| /* Save caller's rbx value on the stack. */ |
| .cfi_offset rbx, -24 |
| push %rbx |
| |
| /* Put our own rbx value. */ |
| mov $0x2021222324252627, %rbx |
| break_here_asm: |
| |
| /* Restore caller's rbx value. */ |
| pop %rbx |
| |
| /* Standard epilogue. */ |
| pop %rbp |
| ret |
| .cfi_endproc |
| |
| |
| .global caller |
| caller: |
| .cfi_startproc |
| /* Standard prologue. */ |
| push %rbp |
| .cfi_def_cfa_offset 16 |
| mov %rsp, %rbp |
| |
| /* Put our own rbx value. */ |
| mov $0x1011121314151617, %rbx |
| |
| /* Call callee. */ |
| call callee |
| |
| /* Store our rbx value in rax to return it. */ |
| mov %rbx, %rax |
| |
| /* Standard epilogue. */ |
| pop %rbp |
| ret |
| .cfi_endproc |
