Add "signal SIGTRAP" test
Some local changes I was working on related to SIGTRAP handling resulted in "signal SIGTRAP" no longer passing the SIGTRAP to the inferior. Surprisingly, only annota1.exp catches this. This commit adds a test that doesn't rely on annotations, so that at the point annotations are finaly dropped, we still have this use case covered ... This is a multi-threaded test to also exercise the case of first needing to do a step-over before delivering the signal. Tested on x86_64 Fedora 20, native, remote/extended-remote gdbserver. gdb/testsuite/ 2015-02-10 Pedro Alves <palves@redhat.com> * gdb.threads/signal-sigtrap.c: New file. * gdb.threads/signal-sigtrap.exp: New file.
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2015-02-10 Pedro Alves <palves@redhat.com>
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* gdb.threads/signal-sigtrap.c: New file.
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* gdb.threads/signal-sigtrap.exp: New file.
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2015-02-10 Antoine Tremblay <antoine.tremblay@ericsson.com>
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* gdb.trace/no-attach-trace.c: New file.
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2014-2015 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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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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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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#include <unistd.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <signal.h>
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void
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sigtrap_handler (int sig)
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{
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}
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void *
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thread_function (void *arg)
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{
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return NULL;
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}
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int
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main (void)
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{
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pthread_t child_thread;
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signal (SIGTRAP, sigtrap_handler);
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pthread_create (&child_thread, NULL, thread_function, NULL);
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pthread_join (child_thread, NULL);
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return 0;
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}
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# Copyright (C) 2014-2015 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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# Check that GDB doesn't forget to pass SIGTRAP to the program when
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# the user explicitly passes it with the signal command.
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if [target_info exists gdb,nosignals] {
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verbose "Skipping ${testfile}.exp because of nosignals."
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return -1
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}
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standard_testfile
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}]} {
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return -1
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}
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# Run test proper. SIGTRAP_THREAD is the thread that should get the
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# SIGTRAP.
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proc test { sigtrap_thread } {
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global srcfile binfile
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with_test_prefix "sigtrap thread $sigtrap_thread" {
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clean_restart ${binfile}
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if ![runto "thread_function"] then {
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fail "Can't run to thread_function"
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return 0
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}
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set pattern "\\\* 2\[ \t\]+Thread.*"
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gdb_test "info threads" $pattern "thread 2 hit breakpoint"
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gdb_test "break sigtrap_handler" "Breakpoint .* at .*$srcfile.*"
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# Thread 2 is stopped at a breakpoint, which must be stepped
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# over first. Thus if this is thread 1, then GDB will first
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# switch back to thread 2 to step it over the breakpoint.
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gdb_test "thread $sigtrap_thread" \
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"Switching to thread $sigtrap_thread.*" \
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"switch to sigtrap thread"
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gdb_test "signal SIGTRAP" \
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"Continuing with signal SIGTRAP.*Breakpoint .* sigtrap_handler .*" \
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"signal SIGTRAP reaches handler"
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set pattern "\\\* $sigtrap_thread\[ \t\]+Thread.*"
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gdb_test "info threads" $pattern "right thread got the signal"
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}
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}
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foreach sigtrap_thread {1 2} {
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test $sigtrap_thread
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}
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