This adds a couple testcases that exercise interrupting programs that
block SIGINT. One tests a program that uses sigprocmask to mask out
SIGINT, and the other tests a program that waits for SIGINT with
sigwait. On GNU/Linux, it is currently impossible to interrupt such a
program with Ctrl-C, and you can't interrupt it with the "interrupt"
command in all-stop mode either.
These currently fail, and are suitably kfailed. The rest of the
series will fix the fails.
Tested on GNU/Linux native, gdbserver, and gdbserver + "maint set
target-non-stop on".
gdb/testsuite/ChangeLog:
yyyy-mm-dd Pedro Alves <pedro@palves.net>
PR gdb/9425
PR gdb/14559
* gdb.base/sigint-masked-out.c: New file.
* gdb.base/sigint-masked-out.exp: New file.
* gdb.base/sigint-sigwait.c: New file.
* gdb.base/sigint-sigwait.exp: New file.
Change-Id: Iddb70c0a2c92550027fccb6f51ecba1292d233c8
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2021 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/>. */
+
+#include <unistd.h>
+#include <signal.h>
+
+static void
+done ()
+{
+}
+
+int
+main (int argc, char *argv[])
+{
+ int i;
+ sigset_t sigs;
+
+ alarm (30);
+
+ sigfillset (&sigs);
+ sigprocmask (SIG_SETMASK, &sigs, NULL);
+
+ done ();
+
+ while (1)
+ sleep (1);
+
+ return 0;
+}
--- /dev/null
+# Copyright 2021 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/>.
+
+# Make sure that we can interrupt an inferior that has all signals
+# masked out, including SIGINT, with both Ctrl-C and the "interrupt"
+# command.
+
+standard_testfile
+
+if {[build_executable "failed to build" $testfile $srcfile {debug}]} {
+ return -1
+}
+
+# Test interrupting with Ctrl-C.
+
+proc_with_prefix test_ctrl_c {} {
+ global binfile
+ global gdb_prompt
+
+ clean_restart $binfile
+
+ if ![runto "done"] {
+ fail "can't run to done function"
+ return
+ }
+
+ gdb_test_multiple "continue" "" {
+ -re "Continuing" {
+ pass $gdb_test_name
+ }
+ }
+
+ after 200
+
+ send_gdb "\003"
+
+ gdb_test_multiple "" "ctrl-c stops process" {
+ -timeout 5
+ -re -wrap "(received signal SIGINT|stopped).*" {
+ pass $gdb_test_name
+ }
+ timeout {
+ setup_kfail "gdb/9425" *-*-*
+ fail "$gdb_test_name (timeout)"
+ }
+ }
+}
+
+# Test interrupting with the "interrupt" command.
+
+proc_with_prefix test_interrupt_cmd {} {
+ global binfile
+ global gdb_prompt
+
+ clean_restart $binfile
+
+ if ![runto "done"] {
+ fail "can't run to done function"
+ return
+ }
+
+ gdb_test_multiple "continue&" "" {
+ -re "Continuing\\.\r\n$gdb_prompt " {
+ pass $gdb_test_name
+ }
+ }
+
+ after 200
+
+ gdb_test_multiple "interrupt" "" {
+ -re "$gdb_prompt " {
+ pass $gdb_test_name
+ }
+ }
+
+ gdb_test_multiple "" "interrupt cmd stops process" {
+ -timeout 5
+ -re "(received signal SIGINT|stopped)" {
+ pass $gdb_test_name
+ }
+ timeout {
+ setup_kfail "gdb/14559" *-*-*
+ fail "$gdb_test_name (timeout)"
+ }
+ }
+}
+
+test_ctrl_c
+test_interrupt_cmd
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2021 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/>. */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+
+static void
+handle_sigint (int signo)
+{
+}
+
+static void
+done ()
+{
+}
+
+int
+main (int argc, char **argv)
+{
+ sigset_t signal_set;
+ struct sigaction s;
+
+ alarm (30);
+
+ s.sa_flags = SA_RESTART;
+ s.sa_handler = handle_sigint;
+
+ if (sigaction (SIGINT, &s, NULL) < 0)
+ {
+ perror ("<%s> Error sigaction: ");
+ exit (2);
+ }
+
+ if (sigfillset (&signal_set) < 0)
+ {
+ perror ("<main> Error sigfillset(): ");
+ exit (2);
+ }
+
+ done ();
+
+ while (1)
+ {
+ int sig;
+
+ /* Wait for queued signals. .*/
+ if (sigwait (&signal_set, &sig) != 0)
+ {
+ perror ("<main> Error sigwait(): ");
+ exit (1);
+ }
+
+ /* Process signal. */
+ if (sig == SIGINT)
+ {
+ printf ("Terminating.\n");
+ exit (0);
+ }
+
+ printf ("Unhandled signal [%s]\n", strsignal (sig));
+ }
+}
--- /dev/null
+# Copyright 2021 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/>.
+
+# Make sure that we can interrupt an inferior that has all signals
+# masked out, including SIGINT, and then waits for signals with
+# sigwait. Test interrupting with both Ctrl-C and the "interrupt"
+# command.
+
+standard_testfile
+
+if {[build_executable "failed to build" $testfile $srcfile {debug}]} {
+ return -1
+}
+
+# Test interrupting with Ctrl-C.
+
+proc_with_prefix test_ctrl_c {} {
+ global binfile
+ global gdb_prompt
+
+ clean_restart $binfile
+
+ if ![runto "done"] {
+ fail "can't run to done function"
+ return
+ }
+
+ gdb_test_multiple "continue" "" {
+ -re "Continuing" {
+ pass $gdb_test_name
+ }
+ }
+
+ after 200
+
+ send_gdb "\003"
+
+ global exited_normally_re
+
+ gdb_test_multiple "" "ctrl-c stops process" {
+ -re -wrap "(received signal SIGINT|stopped).*" {
+ pass $gdb_test_name
+ }
+ -re -wrap "Inferior.*exited normally.*" {
+ setup_kfail "gdb/9425" *-*-*
+ fail "$gdb_test_name (the program exited)"
+ }
+ }
+}
+
+# Test interrupting with the "interrupt" command.
+
+proc_with_prefix test_interrupt_cmd {} {
+ global binfile
+ global gdb_prompt
+
+ clean_restart $binfile
+
+ if ![runto "done"] {
+ fail "can't run to done function"
+ return
+ }
+
+ gdb_test_multiple "continue&" "" {
+ -re "Continuing\\.\r\n$gdb_prompt " {
+ pass $gdb_test_name
+ }
+ }
+
+ after 200
+
+ gdb_test_multiple "interrupt" "" {
+ -re "$gdb_prompt " {
+ pass $gdb_test_name
+ }
+ }
+
+ global exited_normally_re
+
+ gdb_test_multiple "" "interrupt cmd stops process" {
+ -timeout 5
+ -re "(received signal SIGINT|stopped)" {
+ pass $gdb_test_name
+ }
+ -re "Inferior.*exited normally" {
+ setup_kfail "gdb/14559" *-*-*
+ fail "$gdb_test_name (the program exited)"
+ }
+ }
+}
+
+test_ctrl_c
+test_interrupt_cmd
projects / thirdparty / binutils-gdb.git / commitdiff
