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# Copyright (C) 2011-2023 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 that GDB steps over all breakpoints of threads not the stepping
# thread, before actually proceeding with the stepped thread.
standard_testfile
set executable ${testfile}
if [target_info exists gdb,nosignals] {
verbose "Skipping ${testfile}.exp because of nosignals."
return -1
}
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
executable [list debug "incdir=${objdir}"]] != "" } {
return -1
}
# Prepare environment for test.
proc setup {} {
global executable
global displaced
with_test_prefix "setup" {
clean_restart $executable
if ![runto_main] {
return -1
}
gdb_test_no_output "set displaced-stepping $displaced"
gdb_breakpoint [gdb_get_line_number "set wait-threads breakpoint here"]
gdb_continue_to_breakpoint "run to breakpoint"
gdb_test "info threads" "\\\* 1 .* 2 .* 3 .*" "info threads shows all threads"
gdb_test_no_output "set scheduler-locking on"
gdb_breakpoint [gdb_get_line_number "set breakpoint thread 3 here"]
gdb_breakpoint [gdb_get_line_number "set breakpoint thread 2 here"]
gdb_test "thread 3" "Switching.*"
gdb_continue_to_breakpoint "run to breakpoint in thread 3"
gdb_test "p *myp = 0" " = 0" "unbreak loop in thread 3"
gdb_test "thread 2" "Switching.*"
gdb_continue_to_breakpoint "run to breakpoint in thread 2"
gdb_test "p *myp = 0" " = 0" "unbreak loop in thread 2"
# Disable scheduler locking.
gdb_test_no_output "set scheduler-locking off"
# Now all 3 threads are stopped for a breakpoint that needs to
# be stepped over before thread 1 is resumed.
}
}
foreach displaced { "off" "on" } {
with_test_prefix "displaced=$displaced" {
with_test_prefix "step" {
setup
gdb_test "thread 1" "Switching.*"
gdb_test "step" "in wait_threads .*"
}
with_test_prefix "next" {
setup
gdb_test "thread 1" "Switching.*"
gdb_test "next" "pthread_join.*"
}
with_test_prefix "continue" {
setup
gdb_breakpoint [gdb_get_line_number "EXIT_SUCCESS"]
gdb_test "thread 1" "Switching.*"
gdb_test "continue" "EXIT_SUCCESS.*"
}
# Try continuing with a queued signal in each of the threads
# (one at a time). Should stop at the signal handler, instead
# of re-trapping the breakpoint the threads were already
# stopped at.
foreach thread {1 2 3} {
with_test_prefix "signal thr$thread" {
setup
# Queue a signal in THREAD.
gdb_test "thread $thread" "Switching.*"
gdb_test_no_output "queue-signal SIGUSR1"
# Switch back to thread 1, and continue.
gdb_test "thread 1" "Switching.*" "switch back to thread 1"
gdb_breakpoint "sigusr1_handler" "set break at sigusr1_handler"
set msg "continue to sigusr1_handler"
gdb_test_multiple "continue" $msg {
-re "Breakpoint .* sigusr1_handler .*$gdb_prompt $" {
pass $msg
}
-re "Breakpoint .*$gdb_prompt $" {
if {![can_single_step_to_signal_handler]
&& $thread != 1 && $displaced == "off"} {
setup_kfail "gdb/18214" "*-*-*"
}
fail $msg
}
}
}
}
}
}
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