1 # Tests for anonymous union support.
2 # Copyright 1998, 1999, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Written by Satish Pai <pai@apollo.hp.com> 1997-08-19
19 # This file is part of the gdb testsuite
26 # test running programs
32 if { [skip_cplus_tests] } { continue }
34 set testfile "anon-union"
35 set srcfile ${testfile}.cc
36 set binfile ${objdir}/${subdir}/${testfile}
38 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
39 perror "Testcase compile failed" 0
43 # Start with a fresh gdb
46 gdb_reinitialize_dir $srcdir/$subdir
50 if ![runto_main] then {
51 perror "couldn't run to breakpoint"
55 send_gdb "set width 0\n"
56 gdb_expect -re "$gdb_prompt $"
58 #send_gdb "ptype foo\n"
60 # -re "\r\n$gdb_prompt $" {
63 # -re ".*$gdb_prompt $" { fail "ptype foo" }
64 # timeout { fail "(timeout) ptype foo" }
67 #send_gdb "ptype bar\n"
69 # -re "\r\n$gdb_prompt $" {
72 # -re ".*$gdb_prompt $" { fail "ptype foo" }
73 # timeout { fail "(timeout) ptype foo" }
76 # NOTE: Add -- ptype foo.x, etc. when things are working
81 -re "40\[ \t\]*foo.paper = 33;\r\n$gdb_prompt $" {
84 -re ".*$gdb_prompt $" { fail "next 1" }
85 timeout { fail "(timeout) next 1" }
88 # Print out the big anon union.
89 send_gdb "print foo\n"
91 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
94 -re ".*$gdb_prompt $" { fail "print foo 1" }
95 timeout { fail "(timeout) print foo 1" }
98 # Step over assignment to member
102 -re "41\[ \t\]*foo.pebble = 44;\r\n$gdb_prompt $" {
105 -re ".*$gdb_prompt $" { fail "next 1" }
106 timeout { fail "(timeout) next 1" }
109 # Now print out anon union again
110 send_gdb "print foo\n"
112 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
115 -re ".*$gdb_prompt $" { fail "print foo 2" }
116 timeout { fail "(timeout) print foo 2" }
119 # Modify the member just set
120 send_gdb "set var foo.cloth = 35\n"
122 -re "\r\n$gdb_prompt $" {
123 pass "set var foo.cloth"
125 timeout { fail "(timeout) set var foo.cloth" }
128 # Now print out anon union again to see if the right member was set
129 send_gdb "print foo\n"
131 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
134 -re ".*$gdb_prompt $" { fail "print foo 3" }
135 timeout { fail "(timeout) print foo 3" }
139 # Step over next assignment to member
143 -re "42\[ \t\]*foo.mux = 55;\r\n$gdb_prompt $" {
146 -re ".*$gdb_prompt $" { fail "next 2" }
147 timeout { fail "(timeout) next 2" }
150 # Now print out anon union again
151 send_gdb "print foo\n"
153 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
156 -re ".*$gdb_prompt $" { fail "print foo 4" }
157 timeout { fail "(timeout) print foo 4" }
160 # Modify the member just set
161 send_gdb "set var foo.pebble = 45\n"
163 -re "\r\n$gdb_prompt $" {
164 pass "set var foo.pebble"
166 timeout { fail "(timeout) set var foo.pebble" }
169 # Now print out anon union again to see if the right member was set
170 send_gdb "print foo\n"
172 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
175 -re ".*$gdb_prompt $" { fail "print foo 5" }
176 timeout { fail "(timeout) print foo 5" }
179 # Modify another member at a different level
180 send_gdb "set var foo.qux = 46\n"
182 -re "\r\n$gdb_prompt $" {
183 pass "set var foo.qux"
185 timeout { fail "(timeout) set var foo.qux" }
188 # Now print out anon union again to see if the right member was set
189 send_gdb "print foo\n"
191 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
194 -re ".*$gdb_prompt $" { fail "print foo 6" }
195 timeout { fail "(timeout) print foo 6" }
198 # Modify the member at another level, but not the first one in the union
199 send_gdb "set var foo.mux = 47\n"
201 -re "\r\n$gdb_prompt $" {
202 pass "set var foo.mux"
204 timeout { fail "(timeout) set var foo.mux" }
207 # Now print out anon union again to see if things worked
208 send_gdb "print foo\n"
210 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
213 -re ".*$gdb_prompt $" { fail "print foo 7" }
214 timeout { fail "(timeout) print foo 7" }
217 # Modify a member of a struct in an anon union
218 send_gdb "set var foo.x.rock = 48\n"
220 -re "\r\n$gdb_prompt $" {
221 pass "set var foo.x.rock"
223 timeout { fail "(timeout) set var foo.x.rock" }
226 # Now print out anon union again to see if things worked
227 send_gdb "print foo\n"
229 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
232 -re ".*$gdb_prompt $" { fail "print foo 8" }
233 timeout { fail "(timeout) print foo 8" }
236 # Modify a member of a struct in an anon union, but something
237 # that doesn't alias to some other union member
238 send_gdb "set var foo.x.rock2 = 49\n"
240 -re "\r\n$gdb_prompt $" {
241 pass "set var foo.x.rock2"
243 timeout { fail "(timeout) set var foo.x.rock2" }
246 # Now print out anon union again to see if things worked
247 send_gdb "print foo\n"
249 -re "\\$\[0-9\]* = \{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\}\}\r\n$gdb_prompt $" {
252 -re ".*$gdb_prompt $" { fail "print foo 9" }
253 timeout { fail "(timeout) print foo 9" }
257 # Step over next four assignments
260 -re "53\[ \t\]*w = 45;\r\n$gdb_prompt $" {
263 -re ".*$gdb_prompt $" { fail "next 3" }
264 timeout { fail "(timeout) next 3" }
267 # Tests for anon unions that are not members of a class or struct
271 -re "\\$\[0-9\]* = 0\r\n$gdb_prompt $" {
274 -re ".*$gdb_prompt $" { fail "print w 1" }
275 timeout { fail "(timeout) print w 1" }
280 -re "\\$\[0-9\]* = 0\r\n$gdb_prompt $" {
283 -re ".*$gdb_prompt $" { fail "print z 1" }
284 timeout { fail "(timeout) print z 1" }
287 # Step over next assignment to w
290 -re "55\[ \t\]*int j = 0;\r\n$gdb_prompt $" {
293 -re ".*$gdb_prompt $" { fail "next 4" }
294 timeout { fail "(timeout) next 4" }
297 # See if the change in value is noticed
300 -re "\\$\[0-9\]* = 45\r\n$gdb_prompt $" {
303 -re ".*$gdb_prompt $" { fail "print w 2" }
304 timeout { fail "(timeout) print w 2" }
307 # See if z shows the same value
310 -re "\\$\[0-9\]* = 45\r\n$gdb_prompt $" {
313 -re ".*$gdb_prompt $" { fail "print z 2" }
314 timeout { fail "(timeout) print z 2" }
317 # Set the anon union member
318 send_gdb "set var z = 27\n"
320 -re "\r\n$gdb_prompt $" {
323 timeout { fail "(timeout) set var z" }
326 # See if the change in value is noticed
329 -re "\\$\[0-9\]* = 27\r\n$gdb_prompt $" {
332 -re ".*$gdb_prompt $" { fail "print w 3" }
333 timeout { fail "(timeout) print w 3" }
336 # See if z shows the same value
339 -re "\\$\[0-9\]* = 27\r\n$gdb_prompt $" {
342 -re ".*$gdb_prompt $" { fail "print z 3" }
343 timeout { fail "(timeout) print z 3" }