projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 1d506c26 | 1 | /* Copyright 2009-2024 Free Software Foundation, Inc. |
| 35669430 DE |
2 | |
| 3 | This program is free software; you can redistribute it and/or modify | |
| 4 | it under the terms of the GNU General Public License as published by | |
| 5 | the Free Software Foundation; either version 3 of the License, or | |
| 6 | (at your option) any later version. | |
| 7 | ||
| 8 | This program is distributed in the hope that it will be useful, | |
| 9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | GNU General Public License for more details. | |
| 12 | ||
| 13 | You should have received a copy of the GNU General Public License | |
| 14 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 15 | ||
| 16 | This file is part of the gdb testsuite. | |
| 17 | It tests displaced stepping over various insns that require special | |
| 18 | handling. */ | |
| 19 | ||
| 20 | .text | |
| 21 | ||
| 22 | .global main | |
| 23 | main: | |
| 24 | nop | |
| 25 | ||
| 1903f0e6 DE |
26 | /***********************************************/ |
| 27 | ||
| 28 | /* Test call/ret. */ | |
| 35669430 | 29 | |
| 1903f0e6 | 30 | nop |
| 35669430 DE |
31 | .global test_call |
| 32 | test_call: | |
| 33 | call test_call_subr | |
| 34 | nop | |
| 35 | .global test_ret_end | |
| 36 | test_ret_end: | |
| 37 | nop | |
| 38 | ||
| 1903f0e6 DE |
39 | /***********************************************/ |
| 40 | ||
| 41 | /* Absolute jump with leading prefixes. | |
| 42 | These don't occur in normal code, but gdb should still DTRT. */ | |
| 43 | ||
| 44 | nop | |
| 45 | .global test_prefixed_abs_jump | |
| 46 | test_prefixed_abs_jump: | |
| 47 | ds | |
| 48 | jmp *test_prefixed_abs_jump_addr | |
| 49 | .data | |
| 50 | test_prefixed_abs_jump_addr: | |
| 51 | .4byte test_prefixed_abs_jump_target | |
| 52 | .text | |
| 53 | test_prefixed_abs_jump_target: | |
| 54 | nop | |
| 55 | .global test_prefixed_abs_jump_end | |
| 56 | test_prefixed_abs_jump_end: | |
| 57 | nop | |
| 58 | ||
| 59 | /***********************************************/ | |
| 60 | ||
| 61 | /* Test syscall. */ | |
| 35669430 | 62 | |
| 35669430 | 63 | mov $0x14,%eax /* getpid */ |
| 1903f0e6 | 64 | .global test_syscall |
| 35669430 DE |
65 | test_syscall: |
| 66 | int $0x80 | |
| 67 | nop | |
| 1903f0e6 | 68 | .global test_syscall_end |
| 35669430 DE |
69 | test_syscall_end: |
| 70 | nop | |
| 71 | ||
| 1903f0e6 DE |
72 | /***********************************************/ |
| 73 | ||
| 74 | /* Test syscall again, this time with a prefix. | |
| 75 | These don't occur in normal code, but gdb should still DTRT. */ | |
| 76 | ||
| 77 | mov $0x14,%eax /* getpid */ | |
| 78 | .global test_prefixed_syscall | |
| 79 | test_prefixed_syscall: | |
| 80 | repnz | |
| 81 | int $0x80 | |
| 82 | nop | |
| 83 | .global test_prefixed_syscall_end | |
| 84 | test_prefixed_syscall_end: | |
| 85 | nop | |
| 86 | ||
| 87 | /***********************************************/ | |
| 88 | ||
| 89 | /* Test stepping over int3. | |
| 90 | The prefixes are pointless, but it's possible, so we exercise it. */ | |
| 91 | ||
| 92 | nop | |
| 93 | .global test_int3 | |
| 94 | test_int3: | |
| 95 | repz | |
| 96 | repz | |
| 97 | int3 | |
| 98 | nop | |
| 99 | .global test_int3_end | |
| 100 | test_int3_end: | |
| 101 | nop | |
| 102 | ||
| 103 | /***********************************************/ | |
| 104 | ||
| 35669430 DE |
105 | /* all done */ |
| 106 | ||
| 107 | pushl $0 | |
| 108 | call exit | |
| 109 | hlt | |
| 110 | ||
| 111 | /***********************************************/ | |
| 112 | ||
| 113 | /* subroutine to help test call/ret */ | |
| 114 | ||
| 115 | test_call_subr: | |
| 116 | nop | |
| 117 | .global test_call_end | |
| 118 | test_call_end: | |
| 119 | nop | |
| 120 | ||
| 121 | .global test_ret | |
| 122 | test_ret: | |
| 123 | ret | |
| 0f2cd53c | 124 | .section .note.GNU-stack,"",@progbits |