1# Copyright 2008, 2010, 2011 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# Test inferior resumption after discarding a hand-called function.
17# There are two things to test.
18# 1) Inferior stops normally.  Upon resumption it should continue normally,
19#    regardless of whatever signal the hand-called function got.
20# 2) Inferior is stopped at a signal.  Upon resumption it should continue
21#    with that signal, regardless of whatever the hand-called function did.
22
23if $tracelevel then {
24	strace $tracelevel
25}
26
27if [target_info exists gdb,noinferiorio] {
28    verbose "Skipping call-signal-resume.exp because of no fileio capabilities."
29    continue
30}
31
32if [target_info exists gdb,nosignals] {
33    verbose "Skipping call-signal-resume.exp because of nosignals."
34    continue
35}
36
37
38set testfile "call-signals"
39set srcfile ${testfile}.c
40set binfile ${objdir}/${subdir}/${testfile}
41
42if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
43     untested call-signal-resume.exp
44     return -1
45}
46
47# Some targets can't do function calls, so don't even bother with this
48# test.
49if [target_info exists gdb,cannot_call_functions] {
50    setup_xfail "*-*-*" 2416
51    fail "This target can not call functions"
52    continue
53}
54
55proc get_dummy_frame_number { } {
56    global gdb_prompt
57
58    gdb_test_multiple "bt" "backtrace" {
59	-re "#(\[0-9\]*) *<function called from gdb>.*$gdb_prompt $" {
60	    return $expect_out(1,string)
61	}
62    }
63    return ""
64}
65
66# Start with a fresh gdb.
67
68gdb_exit
69gdb_start
70gdb_reinitialize_dir $srcdir/$subdir
71gdb_load ${binfile}
72
73if { ![runto_main] } {
74    fail "Can't run to main"
75    return 0
76}
77
78gdb_test "break stop_one" "Breakpoint \[0-9\]* at .*"
79gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, stop_one.*" \
80    "continue to breakpoint at stop_one"
81
82# Call function (causing the program to get a signal), and see if gdb handles
83# it properly.
84gdb_test_multiple "call gen_signal ()" \
85	"inferior function call signaled" {
86    -re "\[\r\n\]*no signal\[\r\n\]+$gdb_prompt $" {
87	unsupported "inferior function call signaled"
88	return 0
89    }
90    -re "\[\r\n\]*The program being debugged was signaled.*\[\r\n\]+$gdb_prompt $" {
91	pass "inferior function call signaled"
92    }
93}
94
95set frame_number [get_dummy_frame_number]
96if { "$frame_number" == "" } {
97    fail "dummy stack frame number"
98    setup_xfail "*-*-*"
99} else {
100    pass "dummy stack frame number"
101}
102
103# Pop the dummy frame.
104gdb_test "frame $frame_number" ".*"
105gdb_test_no_output "set confirm off"
106gdb_test_no_output "return"
107
108# Resume execution, the program should continue without any signal.
109
110gdb_test "break stop_two" "Breakpoint \[0-9\]* at .*"
111gdb_test "continue" "Breakpoint \[0-9\]*, stop_two.*" \
112    "continue to breakpoint at stop_two"
113
114# Continue again, we should get a signal.
115
116gdb_test "continue" "Program received signal .*" \
117    "continue to receipt of signal"
118
119# Hand call another function that prematurely stops,
120# then manually pop the dummy stack frame.
121
122gdb_test "break null_hand_call" "Breakpoint \[0-9\]* at .*"
123gdb_test "call null_hand_call ()" "Breakpoint \[0-9\]*, null_hand_call.*" \
124    "null_hand_call"
125
126set frame_number [get_dummy_frame_number]
127if { "$frame_number" == "" } {
128    fail "dummy stack frame number"
129    setup_xfail "*-*-*"
130    # Need something.
131    set frame_number 0
132} else {
133    pass "dummy stack frame number"
134}
135
136# Pop the dummy frame.
137gdb_test "frame $frame_number" ".*"
138gdb_test_no_output "set confirm off"
139gdb_test_no_output "return"
140
141# Continue again, this time we should get to the signal handler.
142
143gdb_test "break handle_signal" "Breakpoint \[0-9\]* at .*"
144gdb_test "continue" "Breakpoint \[0-9\]*, handle_signal.*" \
145    "continue to breakpoint at handle_signal"
146
147# Continue one last time, the program should exit normally.
148
149gdb_test "continue" "$inferior_exited_re normally." \
150    "continue to program exit"
151
152return 0
153