1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
# Tests for anonymous union support.
# Copyright 1998-2017 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/>.
# Written by Satish Pai <pai@apollo.hp.com> 1997-08-19
# This file is part of the gdb testsuite
#
# test running programs
#
if { [skip_cplus_tests] } { continue }
standard_testfile .cc
if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
return -1
}
if ![runto_main] then {
perror "couldn't run to breakpoint"
continue
}
gdb_test_no_output "set width 0"
#send_gdb "ptype foo\n"
#gdb_expect {
# -re "\r\n$gdb_prompt $" {
# pass "ptype foo"
# }
# -re ".*$gdb_prompt $" { fail "ptype foo" }
# timeout { fail "(timeout) ptype foo" }
#}
#send_gdb "ptype bar\n"
#gdb_expect {
# -re "\r\n$gdb_prompt $" {
# pass "ptype foo"
# }
# -re ".*$gdb_prompt $" { fail "ptype foo" }
# timeout { fail "(timeout) ptype foo" }
#}
# NOTE: Add -- ptype foo.x, etc. when things are working
#Initialize foo
gdb_test "next" "40\[ \t\]*foo.paper = 33;" "next 1"
# Print out the big anon union.
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 0, cloth = 0\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 1"
# Step over assignment to member
gdb_test "next" "41\[ \t\]*foo.pebble = 44;" "next 2"
# Now print out anon union again
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 33, cloth = 33\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 2"
# Modify the member just set
gdb_test_no_output "set var foo.cloth = 35" "set var foo.cloth"
# Now print out anon union again to see if the right member was set
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 0, x = \{rock = 0, rock2 = 0\}, \{qux = 0, mux = 0\}, boulder = 0\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 3"
# Step over next assignment to member
gdb_test "next" "42\[ \t\]*foo.mux = 55;" "next 3"
# Now print out anon union again
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 44, x = \{rock = 44, rock2 = 0\}, \{qux = 44, mux = 44\}, boulder = 44\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 4"
# Modify the member just set
gdb_test_no_output "set var foo.pebble = 45" "set var foo.pebble"
# Now print out anon union again to see if the right member was set
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 45, x = \{rock = 45, rock2 = 0\}, \{qux = 45, mux = 45\}, boulder = 45\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 5"
# Modify another member at a different level
gdb_test_no_output "set var foo.qux = 46" "set var foo.qux"
# Now print out anon union again to see if the right member was set
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 46, x = \{rock = 46, rock2 = 0\}, \{qux = 46, mux = 46\}, boulder = 46\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 6"
# Modify the member at another level, but not the first one in the union
gdb_test_no_output "set var foo.mux = 47" "set var foo.mux"
# Now print out anon union again to see if things worked
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 47, x = \{rock = 47, rock2 = 0\}, \{qux = 47, mux = 47\}, boulder = 47\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 7"
# Modify a member of a struct in an anon union
gdb_test_no_output "set var foo.x.rock = 48" "set var foo.x.rock"
# Now print out anon union again to see if things worked
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 0\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 8"
# Modify a member of a struct in an anon union, but something
# that doesn't alias to some other union member
gdb_test_no_output "set var foo.x.rock2 = 49" "set var foo.x.rock2"
# Now print out anon union again to see if things worked
gdb_test "print foo" \
"\\$\[0-9\]* = \{num1 = \{zero = 0, one = 0\}, \{pebble = 48, x = \{rock = 48, rock2 = 49\}, \{qux = 48, mux = 48\}, boulder = 48\}, \{paper = 35, cloth = 35\}, num2 = \{two = 0, three = 0\}\}" \
"print foo 9"
# Step over next four assignments
gdb_test "next 4" "53\[ \t\]*w = 45;" "next 4"
# Tests for anon unions that are not members of a class or struct
gdb_test "print w" "\\$\[0-9\]* = 0" "print w 1"
gdb_test "print z" "\\$\[0-9\]* = 0" "print z 1"
# Step over next assignment to w
gdb_test "next" "55\[ \t\]*int j = 0;" "next 5"
# See if the change in value is noticed
gdb_test "print w" "\\$\[0-9\]* = 45" "print w 2"
# See if z shows the same value
gdb_test "print z" "\\$\[0-9\]* = 45" "print z 2"
# Set the anon union member
gdb_test_no_output "set var z = 27" "set var z"
# See if the change in value is noticed
gdb_test "print w" "\\$\[0-9\]* = 27" "print w 3"
# See if z shows the same value
gdb_test "print z" "\\$\[0-9\]* = 27" "print z 3"
|
