| # Copyright 2008-2015 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 test was created by modifying attach-stopped.exp. |
| # This file was created by Jan Kratochvil <jan.kratochvil@redhat.com>. |
| |
| # This test only works on Linux |
| if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub] |
| || ![istarget *-linux*] } { |
| continue |
| } |
| |
| standard_testfile |
| set executable_nothr ${testfile}-nothr |
| set executable_thr ${testfile}-thr |
| |
| proc corefunc { threadtype executable } { |
| global srcfile |
| global srcdir |
| global subdir |
| global gdb_prompt |
| |
| with_test_prefix "$threadtype" { |
| clean_restart ${executable} |
| |
| set binfile [standard_output_file $executable] |
| set escapedbinfile [string_to_regexp ${binfile}] |
| |
| if [get_compiler_info] { |
| return -1 |
| } |
| |
| gdb_test "handle SIGALRM stop print pass" "Yes.*Yes.*Yes.*" |
| |
| # Start the program running and then wait for a bit, to be sure |
| # that it can be attached to. |
| # Statistically there is a better chance without giving process a nice. |
| |
| set testpid [eval exec $binfile &] |
| exec sleep 2 |
| |
| # Run 2 passes of the test. |
| # The C file inferior stops pending its signals if a single one is lost, |
| # we test successful redelivery of the caught signal by the 2nd pass. |
| |
| # linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs. |
| set attempts 100 |
| set attempt 1 |
| set passes 1 |
| while { $passes < 3 && $attempt <= $attempts } { |
| set stoppedtry 0 |
| while { $stoppedtry < 10 } { |
| if [catch {open /proc/${testpid}/status r} fileid] { |
| set stoppedtry 10 |
| break |
| } |
| gets $fileid line1 |
| gets $fileid line2 |
| close $fileid |
| |
| if {![string match "*(stopped)*" $line2]} { |
| # No PASS message as we may be looping in multiple |
| # attempts. |
| break |
| } |
| sleep 1 |
| set stoppedtry [expr $stoppedtry + 1] |
| } |
| if { $stoppedtry >= 10 } { |
| verbose -log $line2 |
| set test "process is still running on the attempt # $attempt of $attempts" |
| break |
| } |
| |
| # Main test: |
| set test "attach (pass $passes), pending signal catch" |
| if {[gdb_test_multiple "attach $testpid" $test { |
| -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Program received signal SIGALRM.*$gdb_prompt $" { |
| # nonthreaded: |
| pass $test |
| verbose -log "$test succeeded on the attempt # $attempt of $attempts" |
| set passes [expr $passes + 1] |
| } |
| -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" { |
| set ok 0 |
| |
| if { $threadtype == "threaded" } { |
| # In the threaded case, the signal is left |
| # pending on the second thread. Check for |
| # that by peeking at the thread's siginfo. |
| # SIGALRM is 14, SIGSTOP is 19. |
| |
| set test2 "thread apply 2 print \$_siginfo.si_signo" |
| gdb_test_multiple $test2 $test2 { |
| -re " = 14\r\n$gdb_prompt $" { |
| set ok 1 |
| } |
| -re " = 19\r\n$gdb_prompt $" { |
| } |
| } |
| } else { |
| # In the nonthreaded case, GDB should tell the |
| # user about having seen a signal. |
| } |
| |
| if { $ok == 0} { |
| # We just lack the luck, we should try it again. |
| set attempt [expr $attempt + 1] |
| } else { |
| pass $test |
| verbose -log "$test succeeded on the attempt # $attempt of $attempts" |
| set passes [expr $passes + 1] |
| } |
| } |
| }] != 0 } { |
| break |
| } |
| |
| gdb_test "detach" "Detaching from.*" "" |
| } |
| if {$passes < 3} { |
| if {$attempt > $attempts} { |
| unresolved $test |
| } else { |
| fail $test |
| } |
| } |
| |
| # Exit and detach the process. |
| |
| gdb_exit |
| |
| # Make sure we don't leave a process around to confuse the |
| # next test run (and prevent the compile by keeping the text |
| # file busy), in case the "set should_exit" didn't work. |
| |
| # Continue the program - some Linux kernels need it before -9 if the |
| # process is stopped. |
| remote_exec build "kill -s CONT ${testpid}" |
| |
| remote_exec build "kill -9 ${testpid}" |
| |
| } |
| } |
| |
| # build the test case first without threads |
| # |
| if {[build_executable $testfile $executable_nothr $srcfile] == -1} { |
| untested "attach-into-signal.exp (nonthreaded)" |
| return -1 |
| } |
| |
| corefunc nonthreaded ${executable_nothr} |
| |
| # build the test case also with threads |
| # |
| if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" [standard_output_file ${executable_thr}] executable {debug additional_flags=-DUSE_THREADS}] != "" } { |
| untested "attach-into-signal.exp (threaded)" |
| return -1 |
| } |
| |
| corefunc threaded ${executable_thr} |