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3b7a962d SM |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
88b9d363 | 3 | Copyright 2020-2022 Free Software Foundation, Inc. |
3b7a962d SM |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | ||
19 | /* This file implements simple Linux syscall wrappers, to be used by tests that | |
20 | need to know exactly where the syscall instructions are. */ | |
21 | ||
22 | #include <asm/unistd.h> | |
23 | ||
24 | /* int my_execve (const char *file, char *argv[], char *envp[]); */ | |
25 | ||
26 | .global my_execve | |
27 | my_execve: | |
28 | ||
29 | #if defined(__x86_64__) | |
30 | ||
31 | mov $__NR_execve, %rax | |
32 | /* rdi, rsi and rdx already contain the right arguments. */ | |
33 | my_execve_syscall: | |
34 | syscall | |
35 | ret | |
36 | ||
37 | #elif defined(__i386__) | |
38 | ||
39 | mov $__NR_execve, %eax | |
40 | mov 4(%esp), %ebx | |
41 | mov 8(%esp), %ecx | |
42 | mov 12(%esp), %edx | |
43 | my_execve_syscall: | |
44 | int $0x80 | |
45 | ret | |
46 | ||
47 | #elif defined(__aarch64__) | |
48 | ||
49 | mov x8, #__NR_execve | |
50 | /* x0, x1 and x2 already contain the right arguments. */ | |
51 | my_execve_syscall: | |
52 | svc #0 | |
53 | ||
54 | #else | |
55 | # error "Unsupported architecture" | |
56 | #endif |