# HG changeset patch
# Parent  ba9899dff4a02b0de8cd73acc977a524b3921581
Interrupt not functional in Eclipse/CDT on Solaris (PR gdb/8527)

diff --git a/gdb/procfs.c b/gdb/procfs.c
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -909,7 +909,12 @@ proc_wait_for_stop (procinfo *pi)
 
   procfs_ctl_t cmd = PCWSTOP;
 
+  set_sigint_trap ();
+
   win = (write (pi->ctl_fd, (char *) &cmd, sizeof (cmd)) == sizeof (cmd));
+
+  clear_sigint_trap ();
+
   /* We been runnin' and we stopped -- need to update status.  */
   pi->status_valid = 0;
 
diff --git a/gdb/testsuite/gdb.base/signal-no-ctty.c b/gdb/testsuite/gdb.base/signal-no-ctty.c
new file mode 100644
--- /dev/null
+++ b/gdb/testsuite/gdb.base/signal-no-ctty.c
@@ -0,0 +1,31 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2018 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>
+
+int main()
+{
+  /* Detach from controlling terminal.  */
+  if (setpgrp () == (pid_t) -1)
+    return 1;
+
+  /* Don't let the test case run forever.  */
+  alarm (60);
+
+  for (;;)
+    ;
+}
diff --git a/gdb/testsuite/gdb.base/signal-no-ctty.exp b/gdb/testsuite/gdb.base/signal-no-ctty.exp
new file mode 100644
--- /dev/null
+++ b/gdb/testsuite/gdb.base/signal-no-ctty.exp
@@ -0,0 +1,71 @@
+# Copyright 2013-2018 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/>.
+
+if [target_info exists gdb,nosignals] {
+    verbose "Skipping signal-no-ctty.exp because of nosignals."
+    continue
+}
+
+# This test requires sending ^C to interrupt the running target.
+if [target_info exists gdb,nointerrupts] {
+    verbose "Skipping signal-no-ctty.exp because of nointerrupts."
+    return
+}
+
+standard_testfile
+
+if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
+    return -1
+}
+
+# Wait a bit and stop the target with ctrl-c.
+proc do_test {} {
+    global binfile
+
+    # For this to work we must be sure to consume the "Continuing."
+    # message first, or GDB's signal handler may not be in place.
+    after 500 {send_gdb "\003"}
+    gdb_test "" "(Program|Thread .*) received signal SIGINT.*" "stop with control-c"
+}
+
+# With native debugging and "run" (with job control), the ctrl-c always
+# reaches the inferior, not gdb.  With remote debugging, the ctrl-c reaches
+# GDB first.
+with_test_prefix "run" {
+    clean_restart $binfile
+
+    gdb_run_cmd
+
+    do_test
+}
+
+# With "attach" however, even with native debugging, the ctrl-c always
+# reaches GDB first.  Test that as well.
+with_test_prefix "attach" {
+    if {[can_spawn_for_attach]} {
+	clean_restart $binfile
+
+	set test_spawn_id [spawn_wait_for_attach $binfile]
+	set testpid [spawn_id_get_pid $test_spawn_id]
+
+	gdb_test "attach $testpid" "Attaching to.*process $testpid.*libc.*" "attach"
+
+	send_gdb "continue\n"
+
+	do_test
+
+	kill_wait_spawned_process $test_spawn_id
+    }
+}