171 lines
4.8 KiB
Plaintext
171 lines
4.8 KiB
Plaintext
# Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This test was created by modifying attach-stopped.exp.
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# This file was created by Jan Kratochvil <jan.kratochvil@redhat.com>.
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# This test only works on Linux
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if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub]
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|| ![istarget *-linux*] } {
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continue
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}
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set testfile "attach-into-signal"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}]
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remote_exec build "rm -f ${binfile}"
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# For debugging this test
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#
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#log_user 1
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proc corefunc { threadtype } {
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global srcfile
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global binfile
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global escapedbinfile
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global srcdir
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global subdir
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global gdb_prompt
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if [get_compiler_info ${binfile}] {
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return -1
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}
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# Start the program running and then wait for a bit, to be sure
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# that it can be attached to.
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# Statistically there is a better chance without giving process a nice.
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set testpid [eval exec $binfile &]
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exec sleep 2
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# Run 2 passes of the test.
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# The C file inferior stops pending its signals if a single one is lost,
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# we test successful redelivery of the caught signal by the 2nd pass.
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# linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs.
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set attempts 100
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set attempt 1
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set passes 1
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while { $passes < 3 && $attempt <= $attempts } {
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set stoppedtry 0
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while { $stoppedtry < 10 } {
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if [catch {open /proc/${testpid}/status r} fileid] {
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set stoppedtry 10
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break
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}
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gets $fileid line1;
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gets $fileid line2;
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close $fileid;
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if {![string match "*(stopped)*" $line2]} {
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# No PASS message as we may be looping in multiple attempts.
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break
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}
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sleep 1
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set stoppedtry [expr $stoppedtry + 1]
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}
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if { $stoppedtry >= 10 } {
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verbose -log $line2
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set test "$threadtype: process is still running on the attempt # $attempt of $attempts"
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break
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}
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# Main test:
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set test "$threadtype: attach (pass $passes), pending signal catch"
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if {[gdb_test_multiple "attach $testpid" $test {
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-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Received Alarm clock.*$gdb_prompt $" {
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# nonthreaded:
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pass $test
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verbose -log "$test succeeded on the attempt # $attempt of $attempts"
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set passes [expr $passes + 1]
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}
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-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
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# nonthreaded:
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# We just lack the luck, we should try it again.
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set attempt [expr $attempt + 1]
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}
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-re "Attaching to process $testpid.*Received Alarm clock.*$gdb_prompt $" {
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# threaded:
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pass $test
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verbose -log "$test succeeded on the attempt # $attempt of $attempts"
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set passes [expr $passes + 1]
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}
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-re "Attaching to process $testpid.*$gdb_prompt $" {
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# threaded:
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# We just lack the luck, we should try it again.
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set attempt [expr $attempt - 1]
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}
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}] != 0 } {
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break
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}
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gdb_test "detach" "Detaching from.*" ""
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}
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if {$passes < 3} {
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if {$attempt > $attempts} {
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unresolved $test
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} else {
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fail $test
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}
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}
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# Exit and detach the process.
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gdb_exit
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# Make sure we don't leave a process around to confuse
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# the next test run (and prevent the compile by keeping
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# the text file busy), in case the "set should_exit" didn't
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# work.
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# Continue the program - some Linux kernels need it before -9 if the
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# process is stopped.
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remote_exec build "kill -s CONT ${testpid}"
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remote_exec build "kill -9 ${testpid}"
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}
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# Start with clean gdb
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gdb_exit
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# build the test case first without threads
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#
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested "attach-into-signal.exp (unthreaded)"
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return -1
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}
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test_no_output "set debug lin-lwp 1" ""
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corefunc nonthreaded
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# build the test case also with threads
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#
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if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
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untested "attach-into-signal.exp (threaded)"
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return -1
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}
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test_no_output "set debug lin-lwp 1" ""
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corefunc threaded
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