1# Copyright 1992, 1994, 1995, 1997, 2007 Free Software Foundation, Inc. 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 3 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, see <http://www.gnu.org/licenses/>. 15 16# Please email any bugs, comments, and/or additions to this file to: 17# bug-gdb@prep.ai.mit.edu 18 19# This file was written by Fred Fish. (fnf@cygnus.com) 20 21if $tracelevel then { 22 strace $tracelevel 23} 24 25set prms_id 0 26set bug_id 0 27 28set testfile "bitfields" 29set srcfile ${testfile}.c 30set binfile ${objdir}/${subdir}/${testfile} 31if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { 32 untested bitfields.exp 33 return -1 34} 35 36# 37# Test bitfield locating and uniqueness. 38# For each member, set that member to 1 and verify that the member (and only 39# that member) is 1, then reset it back to 0. 40# 41 42proc bitfield_uniqueness {} { 43 global decimal 44 global hex 45 global gdb_prompt 46 global srcfile 47 48 if { ! [runto break1] } { 49 gdb_suppress_tests; 50 } 51 52 if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] { 53 gdb_suppress_tests; 54 } 55 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] { 56 gdb_suppress_tests; 57 } 58 # Note that we check for s1 as either 1 or -1, so that failure to 59 # treat it correctly as a signed 1bit field (values 0 or -1) while 60 # printing its value does not cause a spurious failure. We do the 61 # signedness preservation test later. 62 if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] { 63 gdb_suppress_tests; 64 } 65 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] { 66 gdb_suppress_tests; 67 } 68 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] { 69 gdb_suppress_tests; 70 } 71 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] { 72 gdb_suppress_tests; 73 } 74 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] { 75 gdb_suppress_tests; 76 } 77 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] { 78 gdb_suppress_tests; 79 } 80 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] { 81 gdb_suppress_tests; 82 } 83 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] { 84 gdb_suppress_tests; 85 } 86 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] { 87 gdb_suppress_tests; 88 } 89 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] { 90 gdb_suppress_tests; 91 } 92 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] { 93 gdb_suppress_tests 94 } 95 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] { 96 gdb_suppress_tests 97 } 98 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] { 99 gdb_suppress_tests 100 } 101 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] { 102 gdb_suppress_tests 103 } 104 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] { 105 gdb_suppress_tests 106 } 107 if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] { 108 gdb_suppress_tests 109 } 110 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] { 111 gdb_suppress_tests 112 } 113 # Hmmmm? 114 gdb_stop_suppressing_tests; 115} 116 117 118# 119# Test bitfield containment. 120# Fill alternating fields with all 1's and verify that none of the bits 121# "bleed over" to the other fields. 122# 123 124proc bitfield_containment {} { 125 global decimal 126 global hex 127 global gdb_prompt 128 global srcfile 129 130 delete_breakpoints 131 132 if { ![runto break2] } { 133 gdb_suppress_tests 134 } 135 136 if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] { 137 gdb_suppress_tests 138 } 139 140 if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] { 141 gdb_suppress_tests 142 } 143 144 # If program is compiled with Sun CC, then these print out as their 145 # actual sizes; if compiled with gcc, they print out as 0xffffffff 146 # (which strikes me as bogus, but accept it at least for now). 147 if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] { 148 gdb_suppress_tests 149 } 150 gdb_stop_suppressing_tests; 151} 152 153# Test unsigned bitfields for unsignedness and range. 154# Fill the unsigned fields with the maximum positive value and verify that 155# the values are printed correctly. 156 157proc bitfield_unsignedness {} { 158 global decimal 159 global hex 160 global gdb_prompt 161 global srcfile 162 163 delete_breakpoints 164 165 if { ![runto break3] } { 166 gdb_suppress_tests 167 } 168 169 if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] { 170 gdb_suppress_tests 171 } 172 gdb_stop_suppressing_tests; 173} 174 175# 176# Test signed bitfields for signedness and range. 177# Fill the signed fields with the maximum positive value, then the maximally 178# negative value, then -1, and verify in each case that the values are 179# printed correctly. 180# 181 182proc bitfield_signedness {} { 183 global decimal 184 global hex 185 global gdb_prompt 186 global srcfile 187 188 delete_breakpoints 189 190 if { ! [runto break4] } { 191 gdb_suppress_tests 192 } 193 194 if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] { 195 gdb_suppress_tests 196 } 197 198 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] { 199 gdb_suppress_tests 200 } 201 202 # Determine if the target has signed bitfields so we can xfail the 203 # the signed bitfield tests if it doesn't. 204 send_gdb "print i\n" 205 gdb_expect { 206 -re ".* = -256.*$gdb_prompt $" { 207 pass "determining signed-ness of bitfields" 208 } 209 -re ".* = 256.*$gdb_prompt $" { 210 pass "determining signed-ness of bitfields" 211 setup_xfail "*-*-*" 212 } 213 -re ".*$gdb_prompt $" { 214 fail "determining signed-ness of bitfields" 215 gdb_suppress_tests 216 } 217 default { 218 fail "determining signed-ness of bitfields" ; 219 gdb_suppress_tests; 220 } 221 } 222 223 if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] { 224 gdb_suppress_tests 225 } 226 227 if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] { 228 gdb_suppress_tests 229 } 230 231 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"] { 232 gdb_suppress_tests 233 } 234 # Hmmmm??? 235 gdb_stop_suppressing_tests; 236} 237 238gdb_start 239gdb_reinitialize_dir $srcdir/$subdir 240gdb_load ${binfile} 241 242send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $" 243 244bitfield_uniqueness 245if [istarget "mips-idt-*"] then { 246 # Restart because IDT/SIM runs out of file descriptors. 247 gdb_exit 248 gdb_start 249 gdb_reinitialize_dir $srcdir/$subdir 250 gdb_load ${binfile} 251} 252bitfield_containment 253if [istarget "mips-idt-*"] then { 254 # Restart because IDT/SIM runs out of file descriptors. 255 gdb_exit 256 gdb_start 257 gdb_reinitialize_dir $srcdir/$subdir 258 gdb_load ${binfile} 259} 260bitfield_unsignedness 261if [istarget "mips-idt-*"] then { 262 # Restart because IDT/SIM runs out of file descriptors. 263 gdb_exit 264 gdb_start 265 gdb_reinitialize_dir $srcdir/$subdir 266 gdb_load ${binfile} 267} 268bitfield_signedness 269