123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118 |
- # Copyright (C) 2011-2022 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 doesn't inadvertently resume the stepped thread when a
- # signal arrives while stepping over the breakpoint that last caused a
- # stop, when the thread that hit that breakpoint is not the stepped
- # thread.
- # Test relies on checking gdb debug output. Do not run if gdb debug is
- # enabled as any debug will be redirected to the log.
- if [gdb_debug_enabled] {
- continue
- }
- 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
- }
- proc get_value {var test} {
- global expect_out
- global gdb_prompt
- global decimal
- set value -1
- gdb_test_multiple "print $var" "$test" {
- -re ".*= ($decimal).*\r\n$gdb_prompt $" {
- set value $expect_out(1,string)
- pass "$test"
- }
- }
- return ${value}
- }
- # Start with a fresh gdb.
- clean_restart $executable
- if ![runto_main] {
- return -1
- }
- gdb_breakpoint [gdb_get_line_number "set wait-thread-2 breakpoint here"]
- gdb_continue_to_breakpoint "run to wait-thread-2 breakpoint"
- gdb_test "info threads" "" "info threads with thread 2"
- gdb_breakpoint [gdb_get_line_number "set wait-thread-3 breakpoint here"]
- gdb_continue_to_breakpoint "run to breakpoint"
- gdb_test "info threads" "" "info threads with thread 3"
- gdb_test "set scheduler-locking on"
- gdb_breakpoint [gdb_get_line_number "set breakpoint child_two here"]
- gdb_breakpoint [gdb_get_line_number "set breakpoint child_one here"]
- gdb_test "thread 3" "" "switch to thread 3 to run to its breakpoint"
- gdb_continue_to_breakpoint "run to breakpoint in thread 3"
- gdb_test "thread 2" "" "switch to thread 2 to run to its breakpoint"
- gdb_continue_to_breakpoint "run to breakpoint in thread 2"
- delete_breakpoints
- gdb_test "b *\$pc" "" "set breakpoint to be stepped over"
- # Make sure the first loop breaks without hitting the breakpoint
- # again.
- gdb_test "p *myp = 0" " = 0" "force loop break in thread 2"
- # We want "print" to make sure the target reports the signal to the
- # core.
- gdb_test "handle SIGUSR1 print nostop pass" "" ""
- gdb_test "thread 1" "" "switch to thread 1 to queue signal in thread 2"
- gdb_test "next 2" "pthread_join .*" "queue signal in thread 2"
- gdb_test "thread 3" "" "switch to thread 3 for stepping"
- set my_number [get_value "my_number" "get my_number"]
- set cnt_before [get_value "args\[$my_number\]" "get count before step"]
- gdb_test "set scheduler-locking off"
- # Make sure we're exercising the paths we want to.
- gdb_test "set debug infrun 1"
- set test "step"
- gdb_test_sequence $test $test -prompt "$gdb_prompt \\\[infrun\\\] fetch_inferior_event: exit\r\n$" {
- "need to step-over"
- "resume_1: step=1,"
- "signal arrived while stepping over breakpoint"
- "stepped to a different line"
- "callme"
- }
- set cnt_after [get_value "args\[$my_number\]" "get count after step"]
- # Test that GDB doesn't inadvertently resume the stepped thread when a
- # signal arrives while stepping over a breakpoint in another thread.
- gdb_assert { $cnt_before + 1 == $cnt_after } "stepped thread under control"
|