1 # Copyright 1992, 1994, 1995, 1997, 2007, 2008, 2009
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)
26 set testfile "bitfields"
27 set srcfile ${testfile}.c
28 set binfile ${objdir}/${subdir}/${testfile}
29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
30 untested bitfields.exp
35 # Test bitfield locating and uniqueness.
36 # For each member, set that member to 1 and verify that the member (and only
37 # that member) is 1, then reset it back to 0.
40 proc bitfield_uniqueness {} {
46 if { ! [runto break1] } {
50 if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
53 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
56 # Note that we check for s1 as either 1 or -1, so that failure to
57 # treat it correctly as a signed 1bit field (values 0 or -1) while
58 # printing its value does not cause a spurious failure. We do the
59 # signedness preservation test later.
60 if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
63 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
66 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
69 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
72 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
75 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
78 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
81 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
84 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
87 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
90 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
93 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
96 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
99 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
102 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
105 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
108 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
112 gdb_stop_suppressing_tests;
117 # Test bitfield containment.
118 # Fill alternating fields with all 1's and verify that none of the bits
119 # "bleed over" to the other fields.
122 proc bitfield_containment {} {
130 if { ![runto break2] } {
134 if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
138 if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
142 # If program is compiled with Sun CC, then these print out as their
143 # actual sizes; if compiled with gcc, they print out as 0xffffffff
144 # (which strikes me as bogus, but accept it at least for now).
145 if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
148 gdb_stop_suppressing_tests;
151 # Test unsigned bitfields for unsignedness and range.
152 # Fill the unsigned fields with the maximum positive value and verify that
153 # the values are printed correctly.
155 proc bitfield_unsignedness {} {
163 if { ![runto break3] } {
167 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
170 gdb_stop_suppressing_tests;
174 # Test signed bitfields for signedness and range.
175 # Fill the signed fields with the maximum positive value, then the maximally
176 # negative value, then -1, and verify in each case that the values are
180 proc bitfield_signedness {} {
188 if { ! [runto break4] } {
192 if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
196 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
200 # Determine if the target has signed bitfields so we can xfail the
201 # the signed bitfield tests if it doesn't.
204 -re ".* = -256.*$gdb_prompt $" {
205 pass "determining signed-ness of bitfields"
207 -re ".* = 256.*$gdb_prompt $" {
208 pass "determining signed-ness of bitfields"
211 -re ".*$gdb_prompt $" {
212 fail "determining signed-ness of bitfields"
216 fail "determining signed-ness of bitfields" ;
221 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
225 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
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"] {
233 gdb_stop_suppressing_tests;
237 gdb_reinitialize_dir $srcdir/$subdir
240 send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
243 if [istarget "mips-idt-*"] then {
244 # Restart because IDT/SIM runs out of file descriptors.
247 gdb_reinitialize_dir $srcdir/$subdir
251 if [istarget "mips-idt-*"] then {
252 # Restart because IDT/SIM runs out of file descriptors.
255 gdb_reinitialize_dir $srcdir/$subdir
258 bitfield_unsignedness
259 if [istarget "mips-idt-*"] then {
260 # Restart because IDT/SIM runs out of file descriptors.
263 gdb_reinitialize_dir $srcdir/$subdir