signal-sigtrap.exp revision 1.1.1.1 
1# Copyright (C) 2014-2015 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
15
16# Check that GDB doesn't forget to pass SIGTRAP to the program when
17# the user explicitly passes it with the signal command.
18
19if [target_info exists gdb,nosignals] {
20    verbose "Skipping ${testfile}.exp because of nosignals."
21    return -1
22}
23
24standard_testfile
25
26if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}]} {
27    return -1
28}
29
30# Run test proper.  SIGTRAP_THREAD is the thread that should get the
31# SIGTRAP.
32
33proc test { sigtrap_thread } {
34    global srcfile binfile
35
36    with_test_prefix "sigtrap thread $sigtrap_thread" {
37	clean_restart ${binfile}
38
39	if ![runto "thread_function"] then {
40	    fail "Can't run to thread_function"
41	    return 0
42	}
43
44	set pattern "\\\* 2\[ \t\]+Thread.*"
45	gdb_test "info threads" $pattern "thread 2 hit breakpoint"
46
47	gdb_test "break sigtrap_handler" "Breakpoint .* at .*$srcfile.*"
48
49	# Thread 2 is stopped at a breakpoint, which must be stepped
50	# over first.  Thus if this is thread 1, then GDB will first
51	# switch back to thread 2 to step it over the breakpoint.
52	gdb_test "thread $sigtrap_thread" \
53	    "Switching to thread $sigtrap_thread.*" \
54	    "switch to sigtrap thread"
55
56	gdb_test "signal SIGTRAP" \
57	    "Continuing with signal SIGTRAP.*Breakpoint .* sigtrap_handler .*" \
58	    "signal SIGTRAP reaches handler"
59
60	set pattern "\\\* $sigtrap_thread\[ \t\]+Thread.*"
61	gdb_test "info threads" $pattern "right thread got the signal"
62    }
63}
64
65foreach sigtrap_thread {1 2} {
66    test $sigtrap_thread
67}
68