/* 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 . */ .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