1 # Copyright 2020-2023 Free Software Foundation, Inc.
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.
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.
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/>.
16 # Test skipping a prologue that was generated with gcc's -fcf-protection=full
17 # (control flow protection) option.
19 # This option places an `endbr32`/`endbr64` instruction at the start of
20 # all functions, which can interfere with prologue analysis.
23 set binfile ${binfile}
25 if { ![istarget x86_64-*-*] && ![istarget i?86-*-*] } {
26 verbose "Skipping ${testfile}."
30 if { ![supports_fcf_protection] } {
31 untested "-fcf-protection not supported"
35 set opts {debug additional_flags=-fcf-protection=full}
37 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $opts] != "" } {
38 untested "failed to compile"
42 clean_restart ${binfile}
44 # Get start address of function main.
45 set main_addr [get_integer_valueof &main -1]
46 gdb_assert {$main_addr != -1}
50 # Put breakpoint on main, get the address where the breakpoint was installed.
51 gdb_test_multiple "break -q main" "break on main, get address" {
52 -re -wrap "Breakpoint $decimal at ($hex).*" {
53 set bp_addr $expect_out(1,string)
56 set bp_addr [expr $bp_addr]
62 if { $bp_addr != -1 } {
63 # Make sure some prologue was skipped.
64 gdb_assert {$bp_addr > $main_addr}