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# Copyright 2020-2024 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 is part of the gdb testsuite.
# Test if GDB stops at various BRK instruction patterns inserted into
# the code.
require is_aarch64_target
standard_testfile
if {[prepare_for_testing "failed to prepare" ${testfile} ${srcfile}]} {
return -1
}
if {![runto_main]} {
return -1
}
# Number of expected SIGTRAP's to get. This needs to be kept in sync
# with the source file.
set expected_traps 3
set keep_going 1
set count 0
# Make sure we have a lower timeout in case GDB doesn't support a particular
# instruction. Such instruction will cause GDB to loop infinitely.
while {$keep_going} {
# Continue to next program breakpoint instruction.
gdb_test_multiple "continue" "brk instruction $count causes SIGTRAP" {
-re "Program received signal SIGTRAP, Trace/breakpoint trap.*$gdb_prompt $" {
pass $gdb_test_name
# Insert a breakpoint at the program breakpoint instruction so
# GDB can step over it.
gdb_test "break" \
"Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
"insert breakpoint at brk instruction $count"
incr count
}
# We've reached the end of the test.
-re "exited normally.*$gdb_prompt $" {
set keep_going 0
}
timeout {
fail $gdb_test_name
set keep_going 0
}
}
}
# Verify we stopped at the expected number of SIGTRAP's.
gdb_assert {$count == $expected_traps} "all brk instructions triggered"
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