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# Copyright 2021-2024 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/>.
# Test stepping over a breakpoint installed on an instruction that
# exits the thread, while another thread is repeatedly hitting a
# breakpoint, causing GDB to stop all threads.
standard_testfile .c
set syscalls_src $srcdir/lib/my-syscalls.S
if { [build_executable "failed to prepare" $testfile \
[list $srcfile $syscalls_src] {debug pthreads}] == -1 } {
return
}
proc test {displaced-stepping target-non-stop} {
save_vars ::GDBFLAGS {
append ::GDBFLAGS " -ex \"maintenance set target-non-stop ${target-non-stop}\""
clean_restart $::binfile
}
gdb_test_no_output "set displaced-stepping ${displaced-stepping}"
if { ![runto_main] } {
return
}
# The "stepper over exit" threads will step over an instruction
# that causes them to exit.
gdb_test "break my_exit_syscall if 0"
# The "breakpoint hitter" thread will repeatedly hit this
# breakpoint, causing GDB to stop all threads.
gdb_test "break break_here"
# To avoid flooding the log with thread created/exited messages.
gdb_test_no_output "set print thread-events off"
# Make sure the target reports the breakpoint stops.
gdb_test_no_output "set breakpoint condition-evaluation host"
for { set i 0 } { $i < 30 } { incr i } {
with_test_prefix "iter $i" {
if { [gdb_test "continue" "hit Breakpoint $::decimal, break_here .*"] != 0 } {
# Exit if there's a failure to avoid lengthy timeouts.
break
}
}
}
}
foreach_with_prefix displaced-stepping {off auto} {
foreach_with_prefix target-non-stop {off on} {
test ${displaced-stepping} ${target-non-stop}
}
}
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