gdb
[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / bitfields.exp
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1# Copyright 1992, 1994, 1995, 1997, 2007, 2008, 2009
2# Free Software Foundation, Inc.
c906108c
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3
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
e22f8b7c 6# the Free Software Foundation; either version 3 of the License, or
c906108c 7# (at your option) any later version.
e22f8b7c 8#
c906108c
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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.
e22f8b7c 13#
c906108c 14# You should have received a copy of the GNU General Public License
e22f8b7c 15# along with this program. If not, see <http://www.gnu.org/licenses/>.
c906108c 16
c906108c
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17# This file was written by Fred Fish. (fnf@cygnus.com)
18
19if $tracelevel then {
20 strace $tracelevel
21}
22
23set prms_id 0
24set bug_id 0
25
26set testfile "bitfields"
27set srcfile ${testfile}.c
28set binfile ${objdir}/${subdir}/${testfile}
29if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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30 untested bitfields.exp
31 return -1
c906108c
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32}
33
34#
35# Test bitfield locating and uniqueness.
36# For each member, set that member to 1 and verify that the member (and only
37# that member) is 1, then reset it back to 0.
38#
39
40proc bitfield_uniqueness {} {
41 global decimal
42 global hex
43 global gdb_prompt
44 global srcfile
45
46 if { ! [runto break1] } {
47 gdb_suppress_tests;
48 }
49
50 if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
51 gdb_suppress_tests;
52 }
53 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
54 gdb_suppress_tests;
55 }
56 # Note that we check for s1 as either 1 or -1, so that failure to
57 # treat it correctly as a signed 1bit field (values 0 or -1) while
58 # printing its value does not cause a spurious failure. We do the
59 # signedness preservation test later.
60 if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
61 gdb_suppress_tests;
62 }
63 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
64 gdb_suppress_tests;
65 }
66 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
67 gdb_suppress_tests;
68 }
69 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
70 gdb_suppress_tests;
71 }
72 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
73 gdb_suppress_tests;
74 }
75 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
76 gdb_suppress_tests;
77 }
78 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
79 gdb_suppress_tests;
80 }
81 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
82 gdb_suppress_tests;
83 }
84 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
85 gdb_suppress_tests;
86 }
87 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
88 gdb_suppress_tests;
89 }
90 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
91 gdb_suppress_tests
92 }
93 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
94 gdb_suppress_tests
95 }
96 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
97 gdb_suppress_tests
98 }
99 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
100 gdb_suppress_tests
101 }
102 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
103 gdb_suppress_tests
104 }
105 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
106 gdb_suppress_tests
107 }
108 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
109 gdb_suppress_tests
110 }
111 # Hmmmm?
112 gdb_stop_suppressing_tests;
113}
114
115
116#
117# Test bitfield containment.
118# Fill alternating fields with all 1's and verify that none of the bits
119# "bleed over" to the other fields.
120#
121
122proc bitfield_containment {} {
123 global decimal
124 global hex
125 global gdb_prompt
126 global srcfile
127
128 delete_breakpoints
129
130 if { ![runto break2] } {
131 gdb_suppress_tests
132 }
133
134 if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
135 gdb_suppress_tests
136 }
137
138 if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
139 gdb_suppress_tests
140 }
141
142 # If program is compiled with Sun CC, then these print out as their
143 # actual sizes; if compiled with gcc, they print out as 0xffffffff
144 # (which strikes me as bogus, but accept it at least for now).
145 if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
146 gdb_suppress_tests
147 }
148 gdb_stop_suppressing_tests;
149}
150
151# Test unsigned bitfields for unsignedness and range.
152# Fill the unsigned fields with the maximum positive value and verify that
153# the values are printed correctly.
154
155proc bitfield_unsignedness {} {
156 global decimal
157 global hex
158 global gdb_prompt
159 global srcfile
160
161 delete_breakpoints
162
163 if { ![runto break3] } {
164 gdb_suppress_tests
165 }
166
167 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
168 gdb_suppress_tests
169 }
170 gdb_stop_suppressing_tests;
171}
172
173#
174# Test signed bitfields for signedness and range.
175# Fill the signed fields with the maximum positive value, then the maximally
176# negative value, then -1, and verify in each case that the values are
177# printed correctly.
178#
179
180proc bitfield_signedness {} {
181 global decimal
182 global hex
183 global gdb_prompt
184 global srcfile
185
186 delete_breakpoints
187
188 if { ! [runto break4] } {
189 gdb_suppress_tests
190 }
191
192 if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
193 gdb_suppress_tests
194 }
195
196 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
197 gdb_suppress_tests
198 }
199
200 # Determine if the target has signed bitfields so we can xfail the
201 # the signed bitfield tests if it doesn't.
202 send_gdb "print i\n"
203 gdb_expect {
204 -re ".* = -256.*$gdb_prompt $" {
205 pass "determining signed-ness of bitfields"
206 }
207 -re ".* = 256.*$gdb_prompt $" {
208 pass "determining signed-ness of bitfields"
209 setup_xfail "*-*-*"
210 }
211 -re ".*$gdb_prompt $" {
212 fail "determining signed-ness of bitfields"
213 gdb_suppress_tests
214 }
215 default {
216 fail "determining signed-ness of bitfields" ;
217 gdb_suppress_tests;
218 }
219 }
220
221 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
222 gdb_suppress_tests
223 }
224
225 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
226 gdb_suppress_tests
227 }
228
229 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] {
230 gdb_suppress_tests
231 }
232 # Hmmmm???
233 gdb_stop_suppressing_tests;
234}
235
236gdb_start
237gdb_reinitialize_dir $srcdir/$subdir
238gdb_load ${binfile}
239
240send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
241
242bitfield_uniqueness
243if [istarget "mips-idt-*"] then {
244 # Restart because IDT/SIM runs out of file descriptors.
245 gdb_exit
246 gdb_start
247 gdb_reinitialize_dir $srcdir/$subdir
248 gdb_load ${binfile}
249}
250bitfield_containment
251if [istarget "mips-idt-*"] then {
252 # Restart because IDT/SIM runs out of file descriptors.
253 gdb_exit
254 gdb_start
255 gdb_reinitialize_dir $srcdir/$subdir
256 gdb_load ${binfile}
257}
258bitfield_unsignedness
259if [istarget "mips-idt-*"] then {
260 # Restart because IDT/SIM runs out of file descriptors.
261 gdb_exit
262 gdb_start
263 gdb_reinitialize_dir $srcdir/$subdir
264 gdb_load ${binfile}
265}
266bitfield_signedness
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