hook-stop.exp revision 1.1.1.2 
1# Copyright 2009-2017 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
16standard_testfile
17
18if { [build_executable ${testfile}.exp "${testfile}" $srcfile {debug nowarnings}] } {
19    return -1
20}
21
22# Define the hook-stop that runs COMMANDS.
23
24proc define_hook_stop {commands} {
25    set test "define hook-stop command"
26    gdb_test_multiple "define hook-stop" "$test" {
27	-re "Type commands for definition of \"hook-stop\".\r\nEnd with a line saying just \"end\".\r\n>$" {
28	    gdb_test "$commands\nend" "" "$test"
29	}
30    }
31}
32
33# Restart GDB, run to main, set a breakpoint, and define a hook-stop
34# that runs COMMANDS.  If running to main fails, this returns to the
35# caller's caller directly.
36
37proc setup {commands} {
38    global srcfile binfile
39
40    clean_restart $binfile
41
42    if ![runto_main] then {
43	fail "can't run to main"
44	return -code return
45    }
46
47    gdb_test "break func" \
48	"Breakpoint.*at.* file .*$srcfile.*\\." \
49	"breakpoint line number"
50
51    define_hook_stop $commands
52}
53
54# Check that the hook-stop runs before the frame is printed.
55
56proc hook_stop_before_frame {} {
57    with_test_prefix "hook-stop runs before frame print" {
58	global gdb_prompt
59
60	setup "echo \"Hello.\""
61
62	set test "run hook-stop"
63	gdb_test_multiple "continue" "$test" {
64	    -re "\"Hello\\.\"\r\nBreakpo.*func.*set breakpoint here.*${gdb_prompt} $" {
65		pass $test
66	    }
67
68	    -re "Breakpo.*func.*set breakpoint here.*\"Hello\\.\".*${gdb_prompt} $" {
69		fail $test
70	    }
71	}
72    }
73}
74
75# Check that GDB gracefully handles the case of the inferior dying
76# while running the hook-stop.
77
78proc hook_stop_kill {} {
79    with_test_prefix "hook-stop kills inferior" {
80	global gdb_prompt
81
82	setup "kill"
83
84	gdb_test_no_output "set confirm off"
85
86	set test "run hook-stop"
87	gdb_test_multiple "continue" "$test" {
88	    -re "Continuing.\r\n${gdb_prompt} $" {
89		pass $test
90	    }
91	}
92
93	gdb_test "info threads" "No threads.*"
94    }
95}
96
97# Check that GDB gracefully handles the case of the hook-stop
98# continuing the inferior in the foreground.
99
100proc hook_stop_continue_fg {} {
101    with_test_prefix "hook-stop runs continue" {
102	global gdb_prompt
103
104	setup "if \$do_continue\nset \$do_continue = 0\ncontinue\nend"
105
106	gdb_test "print \$do_continue = 1" " = 1"
107
108	gdb_test "next" "Breakpoint.*func \\(\\) at .*set breakpoint here \\*/" \
109	    "next triggering hook-stop"
110
111	gdb_test "next" "a = 2;" "next no hook-stop"
112    }
113}
114
115# Check that GDB gracefully handles the case of the hook-stop
116# continuing the inferior in the background.
117
118proc hook_stop_continue_bg {} {
119    with_test_prefix "hook-stop runs continue&" {
120	global gdb_prompt
121
122	setup "if \$do_continue\nset \$do_continue = 0\ncontinue&\nend"
123
124	gdb_test "print \$do_continue = 1" " = 1"
125
126	set test "run hook-stop"
127	gdb_test_multiple "continue" "$test" {
128	    -re "Continuing.\r\n.*${gdb_prompt} " {
129		pass $test
130	    }
131	}
132
133	set test "inferior exits normally"
134	gdb_test_multiple "" "$test" {
135	    -re "exited normally" {
136		pass $test
137	    }
138	}
139	gdb_test "info threads" "No threads.*"
140    }
141}
142
143# Check that GDB gracefully handles the case of the hook-stop running
144# "next".  GDB used to print the stop event twice.
145
146proc hook_stop_next {} {
147    with_test_prefix "hook-stop runs next" {
148	global gdb_prompt
149
150	setup "next"
151
152	set test "run hook-stop"
153	gdb_test_multiple "continue" "$test" {
154	    -re "a = 2.*a = 2${gdb_prompt} $" {
155		fail $test
156	    }
157	    -re "a = 2.*${gdb_prompt} $" {
158		pass $test
159	    }
160	}
161    }
162}
163
164hook_stop_before_frame
165hook_stop_kill
166hook_stop_continue_fg
167hook_stop_continue_bg
168hook_stop_next
169