| /* This testcase is part of GDB, the GNU debugger. |
| |
| Copyright 2020-2021 Free Software Foundation, Inc. |
| |
| 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/>. */ |
| |
| |
| /* This file implements simple Linux syscall wrappers, to be used by tests that |
| need to know exactly where the syscall instructions are. */ |
| |
| #include <asm/unistd.h> |
| |
| /* int my_execve (const char *file, char *argv[], char *envp[]); */ |
| |
| .global my_execve |
| my_execve: |
| |
| #if defined(__x86_64__) |
| |
| mov $__NR_execve, %rax |
| /* rdi, rsi and rdx already contain the right arguments. */ |
| my_execve_syscall: |
| syscall |
| ret |
| |
| #elif defined(__i386__) |
| |
| mov $__NR_execve, %eax |
| mov 4(%esp), %ebx |
| mov 8(%esp), %ecx |
| mov 12(%esp), %edx |
| my_execve_syscall: |
| int $0x80 |
| ret |
| |
| #elif defined(__aarch64__) |
| |
| mov x8, #__NR_execve |
| /* x0, x1 and x2 already contain the right arguments. */ |
| my_execve_syscall: |
| svc #0 |
| |
| #else |
| # error "Unsupported architecture" |
| #endif |