1# Copyright 2008, 2009, 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#
17# Test support for stepping over longjmp.
18#
19
20if $tracelevel then {
21    strace $tracelevel
22}
23
24
25set testfile "longjmp"
26set srcfile ${testfile}.c
27set binfile ${objdir}/${subdir}/${testfile}
28
29if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
30     untested longjmp.exp
31     return -1
32}
33
34if [get_compiler_info ${binfile}] {
35    return -1
36}
37
38gdb_exit
39gdb_start
40gdb_reinitialize_dir $srcdir/$subdir
41gdb_load ${binfile}
42
43if ![runto_main] then {
44   fail "Can't run to main"
45   return 0
46}
47
48set bp_miss_step_1 [gdb_get_line_number "miss_step_1"]
49set bp_miss_step_2 [gdb_get_line_number "miss_step_2"]
50
51set bp_start_test_1 [gdb_get_line_number "patt1"]
52set bp_start_test_2 [gdb_get_line_number "patt2"]
53set bp_start_test_3 [gdb_get_line_number "patt3"]
54
55#
56# Pattern 1 - simple longjmp.
57#
58
59delete_breakpoints
60
61gdb_test "break $bp_start_test_1" \
62    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_1.*" \
63    "breakpoint at pattern 1 start"
64gdb_test "continue" "patt1.*" "continue to breakpoint at pattern 1 start"
65
66# set safe-net break
67gdb_test "break $bp_miss_step_1" \
68    "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_1.*" \
69    "breakpoint at miss_step_1"
70
71gdb_test "next" "longjmps\\+\\+;.*" "next over setjmp (1)"
72gdb_test "next" "longjmp \\(env, 1\\);.*" "next to longjmp (1)"
73
74set msg "next over longjmp(1)"
75gdb_test_multiple "next" $msg {
76    -re ".*patt1.*$gdb_prompt $" {
77	pass $msg
78	gdb_test "next" "resumes\\+\\+.*" "next into else block (1)"
79	gdb_test "next" "miss_step_1.*" "next into safety net (1)"
80    }
81    -re "miss_step_1.*$gdb_prompt $" {
82	fail $msg
83    }
84}
85
86#
87# Pattern 2 - longjmp from an inner function.
88#
89
90delete_breakpoints
91
92gdb_test "break $bp_start_test_2" \
93    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_2.*" \
94    "breakpoint at pattern 2 start"
95gdb_test "continue" "patt2.*" "continue to breakpoint at pattern 2 start"
96
97# set safe-net break
98gdb_test "break $bp_miss_step_2" \
99    "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_2.*" \
100    "breakpoint at miss_step_2"
101
102gdb_test "next" "call_longjmp.*" "next over setjmp (2)"
103
104set msg "next over call_longjmp (2)"
105gdb_test_multiple "next" $msg {
106    -re ".*patt2.*$gdb_prompt $" {
107	pass $msg
108
109	gdb_test "next" "resumes\\+\\+.*" "next into else block (2)"
110	gdb_test "next" "miss_step_2.*" "next into safety net (2)"
111    }
112    -re "miss_step_2.*$gdb_prompt $" {
113	fail $msg
114    }
115}
116
117#
118# Pattern 3 - setjmp/longjmp inside stepped-over function.
119#
120
121delete_breakpoints
122
123gdb_test "break $bp_start_test_3" \
124    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_3.*" \
125    "breakpoint at pattern 3 start"
126gdb_test "continue" "patt3.*" "continue to breakpoint at pattern 3 start"
127
128gdb_test "next" "longjmp caught.*" "next over patt3"
129