1 # Copyright 1992-2019 Free Software Foundation, Inc.
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.
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.
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/>.
16 # This file was written by Fred Fish. (fnf@cygnus.com)
21 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
26 # Test bitfield locating and uniqueness.
27 # For each member, set that member to 1 and verify that the member (and only
28 # that member) is 1, then reset it back to 0.
31 proc bitfield_uniqueness {} {
37 if { ! [runto break1] } {
41 if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
44 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
47 # Note that we check for s1 as either 1 or -1, so that failure to
48 # treat it correctly as a signed 1bit field (values 0 or -1) while
49 # printing its value does not cause a spurious failure. We do the
50 # signedness preservation test later.
51 if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
54 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
57 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
60 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
63 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
66 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
69 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
72 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
75 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
78 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
81 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
84 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
87 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
90 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
93 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
96 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
99 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
103 gdb_stop_suppressing_tests
108 # Test bitfield containment.
109 # Fill alternating fields with all 1's and verify that none of the bits
110 # "bleed over" to the other fields.
113 proc bitfield_containment {} {
121 if { ![runto break2] } {
125 if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
129 if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
133 # If program is compiled with Sun CC, then these print out as their
134 # actual sizes; if compiled with gcc, they print out as 0xffffffff
135 # (which strikes me as bogus, but accept it at least for now).
136 if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
139 gdb_stop_suppressing_tests
142 # Test unsigned bitfields for unsignedness and range.
143 # Fill the unsigned fields with the maximum positive value and verify that
144 # the values are printed correctly.
146 proc bitfield_unsignedness {} {
154 if { ![runto break3] } {
158 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
161 gdb_stop_suppressing_tests
165 # Test signed bitfields for signedness and range.
166 # Fill the signed fields with the maximum positive value, then the maximally
167 # negative value, then -1, and verify in each case that the values are
171 proc bitfield_signedness {} {
179 if { ! [runto break4] } {
183 if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
187 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
191 # Determine if the target has signed bitfields so we can xfail the
192 # the signed bitfield tests if it doesn't.
193 gdb_test_multiple "print i" "determining signed-ness of bitfields" {
194 -re ".* = -256.*$gdb_prompt $" {
195 pass "determining signed-ness of bitfields"
197 -re ".* = 256.*$gdb_prompt $" {
198 pass "determining signed-ness of bitfields"
201 -re ".*$gdb_prompt $" {
202 fail "determining signed-ness of bitfields"
206 fail "determining signed-ness of bitfields"
211 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
215 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
219 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] {
223 gdb_stop_suppressing_tests
226 # Test bitfields at non-zero offsets in a struct.
228 proc bitfield_at_offset {} {
234 gdb_breakpoint break5
235 if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] {
239 set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*"
240 set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*"
241 gdb_test "print container" "$one$two" "distinct bitfields in container"
242 gdb_test "print container.one.u3" ".* = 5"
243 gdb_test "print container.two.u3" ".* = 3"
246 proc bitfield_internalvar {} {
249 # First, we create an internal var holding an instance of
250 # the struct (zeroed out).
251 gdb_test "set \$myvar = (struct internalvartest) \{0\}" "" \
254 # Now, we set the proper bits.
255 gdb_test_no_output "set \$myvar.a = 0"
256 gdb_test_no_output "set \$myvar.inner.b = 1"
257 gdb_test_no_output "set \$myvar.inner.deep.c = 0"
258 gdb_test_no_output "set \$myvar.inner.deep.d = -1"
259 gdb_test_no_output "set \$myvar.inner.e = 1"
260 gdb_test_no_output "set \$myvar.f = 1"
262 # Here comes the true testing.
263 gdb_test "print \$myvar.a" "\\$\[0-9\]\+ = 0"
264 gdb_test "print \$myvar.inner.b" "\\$\[0-9\]\+ = 1"
265 gdb_test "print \$myvar.inner.deep.c" "\\$\[0-9\]\+ = 0"
266 gdb_test "print \$myvar.inner.deep.d" "\\$\[0-9\]\+ = -1"
267 gdb_test "print \$myvar.inner.e" "\\$\[0-9\]\+ = -1"
268 gdb_test "print \$myvar.f" "\\$\[0-9\]\+ = -1"
271 gdb_test_no_output "set print sevenbit-strings"
275 bitfield_unsignedness