1 # Copyright 1992-2022 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 $srcfile debug]} {
26 # Test bitfield locating and uniqueness.
27 # For each member, set that member to 1 and verify that the member (and only
28 # that member) is 1, then reset it back to 0.
31 proc bitfield_uniqueness {} {
37 if { ! [runto break1] } {
41 gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"
42 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"
44 # Note that we check for s1 as either 1 or -1, so that failure to
45 # treat it correctly as a signed 1bit field (values 0 or -1) while
46 # printing its value does not cause a spurious failure. We do the
47 # signedness preservation test later.
48 gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"
49 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"
50 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"
51 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"
52 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"
53 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"
54 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"
55 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"
56 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"
57 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"
58 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"
59 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"
60 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"
61 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"
62 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"
63 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"
64 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"
69 # Test bitfield containment.
70 # Fill alternating fields with all 1's and verify that none of the bits
71 # "bleed over" to the other fields.
74 proc bitfield_containment {} {
82 if { ![runto break2] } {
86 gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"
87 gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"
89 # If program is compiled with Sun CC, then these print out as their
90 # actual sizes; if compiled with gcc, they print out as 0xffffffff
91 # (which strikes me as bogus, but accept it at least for now).
92 gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"
95 # Test unsigned bitfields for unsignedness and range.
96 # Fill the unsigned fields with the maximum positive value and verify that
97 # the values are printed correctly.
99 proc bitfield_unsignedness {} {
107 if { ![runto break3] } {
111 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"
115 # Test signed bitfields for signedness and range.
116 # Fill the signed fields with the maximum positive value, then the maximally
117 # negative value, then -1, and verify in each case that the values are
121 proc bitfield_signedness {} {
129 if { ! [runto break4] } {
133 gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"
134 gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"
136 # Determine if the target has signed bitfields so we can xfail the
137 # the signed bitfield tests if it doesn't.
138 gdb_test_multiple "print i" "determining signed-ness of bitfields" {
139 -re ".* = -256.*$gdb_prompt $" {
140 pass "determining signed-ness of bitfields"
142 -re ".* = 256.*$gdb_prompt $" {
143 pass "determining signed-ness of bitfields"
146 -re ".*$gdb_prompt $" {
147 fail "determining signed-ness of bitfields"
150 fail "determining signed-ness of bitfields"
154 gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"
155 gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"
156 gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"
159 # Test bitfields at non-zero offsets in a struct.
161 proc bitfield_at_offset {} {
167 gdb_breakpoint break5
168 if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] {
172 set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*"
173 set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*"
174 gdb_test "print container" "$one$two" "distinct bitfields in container"
175 gdb_test "print container.one.u3" ".* = 5"
176 gdb_test "print container.two.u3" ".* = 3"
179 proc bitfield_internalvar {} {
182 # First, we create an internal var holding an instance of
183 # the struct (zeroed out).
184 gdb_test "set \$myvar = (struct internalvartest) \{0\}" "" \
187 # Now, we set the proper bits.
188 gdb_test_no_output "set \$myvar.a = 0"
189 gdb_test_no_output "set \$myvar.inner.b = 1"
190 gdb_test_no_output "set \$myvar.inner.deep.c = 0"
191 gdb_test_no_output "set \$myvar.inner.deep.d = -1"
192 gdb_test_no_output "set \$myvar.inner.e = 1"
193 gdb_test_no_output "set \$myvar.f = 1"
195 # Here comes the true testing.
196 gdb_test "print \$myvar.a" "\\$\[0-9\]\+ = 0"
197 gdb_test "print \$myvar.inner.b" "\\$\[0-9\]\+ = 1"
198 gdb_test "print \$myvar.inner.deep.c" "\\$\[0-9\]\+ = 0"
199 gdb_test "print \$myvar.inner.deep.d" "\\$\[0-9\]\+ = -1"
200 gdb_test "print \$myvar.inner.e" "\\$\[0-9\]\+ = -1"
201 gdb_test "print \$myvar.f" "\\$\[0-9\]\+ = -1"
204 gdb_test_no_output "set print sevenbit-strings"
208 bitfield_unsignedness