1 # Copyright 1992, 1994, 1995, 1997, 2007, 2008, 2009, 2010
2 # 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 # This file was written by Fred Fish. (fnf@cygnus.com)
24 set testfile "bitfields"
25 set srcfile ${testfile}.c
26 set binfile ${objdir}/${subdir}/${testfile}
27 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
28 untested bitfields.exp
33 # Test bitfield locating and uniqueness.
34 # For each member, set that member to 1 and verify that the member (and only
35 # that member) is 1, then reset it back to 0.
38 proc bitfield_uniqueness {} {
44 if { ! [runto break1] } {
48 if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
51 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
54 # Note that we check for s1 as either 1 or -1, so that failure to
55 # treat it correctly as a signed 1bit field (values 0 or -1) while
56 # printing its value does not cause a spurious failure. We do the
57 # signedness preservation test later.
58 if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
61 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
64 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
67 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
70 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
73 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
76 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
79 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
82 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
85 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
88 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
91 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
94 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
97 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
100 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
103 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
106 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
110 gdb_stop_suppressing_tests;
115 # Test bitfield containment.
116 # Fill alternating fields with all 1's and verify that none of the bits
117 # "bleed over" to the other fields.
120 proc bitfield_containment {} {
128 if { ![runto break2] } {
132 if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
136 if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
140 # If program is compiled with Sun CC, then these print out as their
141 # actual sizes; if compiled with gcc, they print out as 0xffffffff
142 # (which strikes me as bogus, but accept it at least for now).
143 if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
146 gdb_stop_suppressing_tests;
149 # Test unsigned bitfields for unsignedness and range.
150 # Fill the unsigned fields with the maximum positive value and verify that
151 # the values are printed correctly.
153 proc bitfield_unsignedness {} {
161 if { ![runto break3] } {
165 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
168 gdb_stop_suppressing_tests;
172 # Test signed bitfields for signedness and range.
173 # Fill the signed fields with the maximum positive value, then the maximally
174 # negative value, then -1, and verify in each case that the values are
178 proc bitfield_signedness {} {
186 if { ! [runto break4] } {
190 if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
194 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
198 # Determine if the target has signed bitfields so we can xfail the
199 # the signed bitfield tests if it doesn't.
200 gdb_test_multiple "print i" "determining signed-ness of bitfields" {
201 -re ".* = -256.*$gdb_prompt $" {
202 pass "determining signed-ness of bitfields"
204 -re ".* = 256.*$gdb_prompt $" {
205 pass "determining signed-ness of bitfields"
208 -re ".*$gdb_prompt $" {
209 fail "determining signed-ness of bitfields"
213 fail "determining signed-ness of bitfields" ;
218 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
222 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
226 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] {
230 gdb_stop_suppressing_tests;
233 # Test bitfields at non-zero offsets in a struct.
235 proc bitfield_at_offset {} {
241 gdb_breakpoint break5
242 if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] {
246 set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*"
247 set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*"
248 gdb_test "print container" "$one$two" "distinct bitfields in container"
249 gdb_test "print container.one.u3" ".* = 5"
250 gdb_test "print container.two.u3" ".* = 3"
254 gdb_reinitialize_dir $srcdir/$subdir
257 gdb_test_no_output "set print sevenbit-strings"
260 if [istarget "mips-idt-*"] then {
261 # Restart because IDT/SIM runs out of file descriptors.
264 gdb_reinitialize_dir $srcdir/$subdir
268 if [istarget "mips-idt-*"] then {
269 # Restart because IDT/SIM runs out of file descriptors.
272 gdb_reinitialize_dir $srcdir/$subdir
275 bitfield_unsignedness
276 if [istarget "mips-idt-*"] then {
277 # Restart because IDT/SIM runs out of file descriptors.
280 gdb_reinitialize_dir $srcdir/$subdir