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88b9d363 | 1 | # Copyright 2020-2022 Free Software Foundation, Inc. |
ac4a4f1c SM |
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 | # Test skipping a prologue that was generated with gcc's -fcf-protection=full | |
17 | # (control flow protection) option. | |
18 | # | |
14f9473c VC |
19 | # This option places an `endbr32`/`endbr64` instruction at the start of |
20 | # all functions, which can interfere with prologue analysis. | |
ac4a4f1c SM |
21 | |
22 | standard_testfile .c | |
23 | set binfile ${binfile} | |
24 | ||
14f9473c | 25 | if { ![istarget x86_64-*-*] && ![istarget i?86-*-*] } { |
ac4a4f1c SM |
26 | verbose "Skipping ${testfile}." |
27 | return | |
28 | } | |
29 | ||
30 | if { ![supports_fcf_protection] } { | |
31 | untested "-fcf-protection not supported" | |
32 | return | |
33 | } | |
34 | ||
35 | set opts {debug additional_flags=-fcf-protection=full} | |
36 | ||
37 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } { | |
38 | untested "failed to compile" | |
39 | return | |
40 | } | |
41 | ||
42 | clean_restart ${binfile} | |
43 | ||
44 | # Get start address of function main. | |
45 | set main_addr [get_integer_valueof &main -1] | |
46 | gdb_assert {$main_addr != -1} | |
47 | ||
48 | set bp_addr -1 | |
49 | ||
50 | # Put breakpoint on main, get the address where the breakpoint was installed. | |
e777225b | 51 | gdb_test_multiple "break -q main" "break on main, get address" { |
ac4a4f1c SM |
52 | -re -wrap "Breakpoint $decimal at ($hex).*" { |
53 | set bp_addr $expect_out(1,string) | |
54 | ||
55 | # Convert to decimal. | |
56 | set bp_addr [expr $bp_addr] | |
57 | ||
58 | pass $gdb_test_name | |
59 | } | |
60 | } | |
61 | ||
62 | if { $bp_addr != -1 } { | |
63 | # Make sure some prologue was skipped. | |
64 | gdb_assert {$bp_addr > $main_addr} | |
65 | } |