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6aba47ca | 1 | # Copyright 1992, 1994, 1995, 1997, 2004, 2007 Free Software Foundation, Inc. |
c8170782 PH |
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 2 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, write to the Free Software | |
15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
16 | ||
17 | # This file was adapted from bitfields.exp by Paul Hilfinger | |
18 | # (Hilfinger@gnat.com) | |
19 | ||
20 | # | |
21 | # Tests for bit-fields that do not fit in type (unsigned) int, but do fit | |
22 | # in type (unsigned) long long. We perform essentially the same tests as | |
23 | # in bitfields.c, which considers only bit-fields that are <= 9 bits long. | |
24 | # | |
25 | ||
26 | if $tracelevel then { | |
27 | strace $tracelevel | |
28 | } | |
29 | ||
30 | set prms_id 0 | |
31 | set bug_id 0 | |
32 | ||
33 | set testfile "bitfields2" | |
34 | set srcfile ${testfile}.c | |
35 | set binfile ${objdir}/${subdir}/${testfile} | |
36 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
b60f0898 JB |
37 | untested bitfields2.exp |
38 | return -1 | |
c8170782 PH |
39 | } |
40 | ||
41 | set has_signed_bitfields 1 | |
42 | ||
43 | # | |
44 | # Continue to expected breakpoint at FUNCTION. Append TAG to make pass/fail | |
45 | # messages (to make them unique). Suppress tests on failure. | |
46 | # | |
47 | proc continue_test { function tag } { | |
48 | global decimal | |
49 | global srcfile | |
50 | ||
51 | if [gdb_test "cont" "Break.*$function \\(\\) at .*$srcfile:$decimal.*" "continuing to $function $tag"] { | |
52 | gdb_suppress_tests | |
53 | } | |
54 | } | |
55 | ||
56 | # | |
57 | # Start next test by running to tester and then to FUNCTION. Suppresses | |
58 | # tests on failure. | |
59 | # | |
60 | proc start_test { function } { | |
61 | delete_breakpoints | |
62 | if [gdb_test "break tester" "" "break tester prior to $function"] { | |
63 | gdb_suppress_tests | |
64 | } | |
65 | continue_test "tester" "prior to $function" | |
66 | if ![gdb_breakpoint $function] { | |
67 | gdb_suppress_tests | |
68 | } | |
69 | continue_test $function "#0" | |
70 | } | |
71 | ||
72 | ||
73 | # | |
74 | # Test bitfield locating and uniqueness. | |
75 | # For each member, set that member to 1 and verify that the member (and only | |
76 | # that member) is 1, then reset it back to 0. | |
77 | # | |
78 | ||
79 | proc bitfield_uniqueness {} { | |
80 | global decimal | |
81 | global hex | |
82 | global gdb_prompt | |
83 | global srcfile | |
84 | ||
85 | start_test break1 | |
86 | ||
87 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 1, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.s1 = 1"] { | |
88 | gdb_suppress_tests; | |
89 | } | |
90 | continue_test break1 "#1" | |
91 | if [gdb_test "print flags" ".*u1 = 1, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u1 = 1"] { | |
92 | gdb_suppress_tests; | |
93 | } | |
94 | continue_test break1 "#2" | |
95 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 1, s3 = 0.*" "bitfield uniqueness; flags.s2 = 1"] { | |
96 | gdb_suppress_tests; | |
97 | } | |
98 | continue_test break1 "#3" | |
99 | if [gdb_test "print flags" ".*u1 = 0, u2 = 1, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u2 = 1"] { | |
100 | gdb_suppress_tests; | |
101 | } | |
102 | continue_test break1 "#4" | |
103 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 1.*" "bitfield uniqueness; flags.s3 = 1"] { | |
104 | gdb_suppress_tests; | |
105 | } | |
106 | continue_test break1 "#5" | |
107 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 1, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u3 = 1"] { | |
108 | gdb_suppress_tests | |
109 | } | |
110 | gdb_stop_suppressing_tests; | |
111 | } | |
112 | ||
113 | ||
114 | # | |
115 | # Test bitfield containment. | |
116 | # Fill alternating fields with all 1's and verify that none of the bits | |
117 | # "bleed over" to the other fields. | |
118 | # | |
119 | ||
120 | proc bitfield_containment {} { | |
121 | global decimal | |
122 | global hex | |
123 | global gdb_prompt | |
124 | global srcfile | |
125 | ||
126 | start_test break2 | |
127 | ||
128 | # If program is compiled with Sun CC, signed fields print out as their | |
129 | # actual sizes; if compiled with gcc, they print out as 0xffffffff. | |
130 | if [gdb_test "print/x flags" "= {u1 = 0x7fff, u2 = 0x0, u3 = 0xffff, s1 = 0x0, s2 = 0x(1ffffffff|f*), s3 = 0x0}" "bitfield containment; flags.u1, flags.u3, and flags.s3 to all 1s"] { | |
131 | gdb_suppress_tests | |
132 | } | |
133 | ||
134 | continue_test break2 "#1" | |
135 | ||
136 | if [gdb_test "print/x flags" "= {u1 = 0x0, u2 = 0x1ffffffff, u3 = 0x0, s1 = 0x(7fff|f*), s2 = 0x0, s3 = 0xf*}" "bitfield containment; flags.u2, flags.s1, flags.s2 to all 1s"] { | |
137 | gdb_suppress_tests | |
138 | } | |
139 | gdb_stop_suppressing_tests; | |
140 | } | |
141 | ||
142 | # Test unsigned bitfields for unsignedness and range. | |
143 | # Fill the unsigned fields with the maximum positive value and verify that | |
144 | # the values are printed correctly. | |
145 | ||
146 | proc bitfield_unsignedness {} { | |
147 | global decimal | |
148 | global hex | |
149 | global gdb_prompt | |
150 | global srcfile | |
151 | ||
152 | start_test break3 | |
153 | ||
154 | if [gdb_test "print flags" ".*u1 = 32767, u2 = 8589934591, u3 = 65535, s1 = 0, s2 = 0, s3 = 0.*" "maximum unsigned bitfield values"] { | |
155 | gdb_suppress_tests | |
156 | } | |
157 | gdb_stop_suppressing_tests; | |
158 | } | |
159 | ||
160 | # | |
161 | # Test signed bitfields for signedness and range. | |
162 | # Fill the signed fields with the maximum positive value, then the maximally | |
163 | # negative value, then -1, and verify in each case that the values are | |
164 | # printed correctly. | |
165 | # | |
166 | ||
167 | proc bitfield_signedness {} { | |
168 | global decimal | |
169 | global hex | |
170 | global gdb_prompt | |
171 | global srcfile | |
172 | global has_signed_bitfields | |
173 | ||
174 | start_test break4 | |
175 | ||
176 | if [gdb_test "print flags" "= {.*u1 = 0, u2 = 0, u3 = 0, s1 = 16383, s2 = 4294967295, s3 = 32767.*}" "maximum signed bitfield values"] { | |
177 | gdb_suppress_tests | |
178 | } | |
179 | ||
180 | continue_test break4 "#1" | |
181 | ||
182 | # Determine if the target has signed bitfields so we can skip | |
183 | # the signed bitfield tests if it doesn't. | |
184 | set test "determining signed-ness of bitfields" | |
185 | set has_signed_bitfields 0 | |
186 | gdb_test_multiple "print i" $test { | |
187 | -re ".* = -32768.*$gdb_prompt $" { | |
188 | set has_signed_bitfields 1 | |
189 | pass "determining signed-ness of bitfields" | |
190 | } | |
191 | -re ".* = 32768.*$gdb_prompt $" { | |
192 | pass "determining signed-ness of bitfields" | |
193 | } | |
194 | -re ".*$gdb_prompt $" { | |
195 | fail "determining signed-ness of bitfields" | |
196 | gdb_suppress_tests | |
197 | } | |
198 | } | |
199 | ||
200 | set test "most negative signed bitfield values" | |
201 | if $has_signed_bitfields then { | |
202 | if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -16384, s2 = -4294967296, s3 = -32768.*" $test ] { | |
203 | gdb_suppress_tests | |
204 | } | |
205 | } else { | |
206 | unsupported $test | |
207 | } | |
208 | ||
209 | continue_test break4 "#2" | |
210 | ||
211 | set test "signed bitfields containing -1" | |
212 | if $has_signed_bitfields then { | |
213 | if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -1, s2 = -1, s3 = -1.*" $test ] { | |
214 | gdb_suppress_tests | |
215 | } | |
216 | } else { | |
217 | unsupported $test | |
218 | } | |
219 | ||
220 | gdb_stop_suppressing_tests; | |
221 | } | |
222 | ||
223 | ||
224 | # Test setting of long long bit fields from within GDB. | |
225 | ||
226 | proc bitfield_set {} { | |
227 | global decimal | |
228 | global hex | |
229 | global gdb_prompt | |
230 | global srcfile | |
231 | global has_signed_bitfields | |
232 | ||
233 | start_test break5 | |
234 | ||
235 | set big_set_failed 0 | |
236 | set test "set long long unsigned bitfield" | |
237 | gdb_test_multiple "print flags.u2 = 0x100000000" $test { | |
238 | -re "warning: Value does not fit.*$gdb_prompt $" { | |
239 | fail "$test" | |
240 | gdb_suppress_tests | |
241 | } | |
242 | -re "= 4294967296.*$gdb_prompt $" { | |
243 | pass "$test" | |
244 | } | |
245 | } | |
246 | ||
247 | set test "set long long signed bitfield positive" | |
248 | gdb_test_multiple "print flags.s2 = 0x80000000" $test { | |
249 | -re "warning: Value does not fit.*$gdb_prompt $" { | |
250 | fail "$test" | |
251 | gdb_suppress_tests | |
252 | } | |
253 | -re "= 2147483648.*$gdb_prompt $" { | |
254 | pass "$test" | |
255 | } | |
256 | } | |
257 | ||
258 | if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = 2147483648, s3 = 0.*" "long long bitfield values after set"] { | |
259 | gdb_suppress_tests | |
260 | } | |
261 | ||
262 | set test "set long long signed bitfield negative" | |
263 | if $has_signed_bitfields then { | |
264 | gdb_test_multiple "print flags.s2 = -1" $test { | |
265 | -re "warning: Value does not fit.*$gdb_prompt $" { | |
266 | fail "$test" | |
267 | gdb_suppress_tests | |
268 | } | |
269 | -re "= -1.*$gdb_prompt $" { | |
270 | pass "$test" | |
271 | } | |
272 | } | |
273 | } else { | |
274 | unsupported $test | |
275 | } | |
276 | ||
277 | set test "long long bitfield values after set negative" | |
278 | if $has_signed_bitfields then { | |
279 | if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = -1, s3 = 0.*" $test] { | |
280 | gdb_suppress_tests | |
281 | } | |
282 | } else { | |
283 | unsupported $test | |
284 | } | |
285 | ||
286 | gdb_stop_suppressing_tests; | |
287 | } | |
288 | ||
289 | gdb_start | |
290 | gdb_reinitialize_dir $srcdir/$subdir | |
291 | gdb_load ${binfile} | |
292 | ||
293 | send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $" | |
294 | runto_main | |
295 | ||
296 | bitfield_uniqueness | |
297 | bitfield_containment | |
298 | bitfield_unsignedness | |
299 | bitfield_signedness | |
300 | bitfield_set | |
301 |