| 1 | # Copyright 1992-2013 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 | # This file was written by Fred Fish. (fnf@cygnus.com) |
| 17 | |
| 18 | |
| 19 | set testfile "bitfields" |
| 20 | set srcfile ${testfile}.c |
| 21 | set binfile ${objdir}/${subdir}/${testfile} |
| 22 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| 23 | untested bitfields.exp |
| 24 | return -1 |
| 25 | } |
| 26 | |
| 27 | # |
| 28 | # Test bitfield locating and uniqueness. |
| 29 | # For each member, set that member to 1 and verify that the member (and only |
| 30 | # that member) is 1, then reset it back to 0. |
| 31 | # |
| 32 | |
| 33 | proc bitfield_uniqueness {} { |
| 34 | global decimal |
| 35 | global hex |
| 36 | global gdb_prompt |
| 37 | global srcfile |
| 38 | |
| 39 | if { ! [runto break1] } { |
| 40 | gdb_suppress_tests; |
| 41 | } |
| 42 | |
| 43 | if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] { |
| 44 | gdb_suppress_tests; |
| 45 | } |
| 46 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] { |
| 47 | gdb_suppress_tests; |
| 48 | } |
| 49 | # Note that we check for s1 as either 1 or -1, so that failure to |
| 50 | # treat it correctly as a signed 1bit field (values 0 or -1) while |
| 51 | # printing its value does not cause a spurious failure. We do the |
| 52 | # signedness preservation test later. |
| 53 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] { |
| 54 | gdb_suppress_tests; |
| 55 | } |
| 56 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] { |
| 57 | gdb_suppress_tests; |
| 58 | } |
| 59 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] { |
| 60 | gdb_suppress_tests; |
| 61 | } |
| 62 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] { |
| 63 | gdb_suppress_tests; |
| 64 | } |
| 65 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] { |
| 66 | gdb_suppress_tests; |
| 67 | } |
| 68 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] { |
| 69 | gdb_suppress_tests; |
| 70 | } |
| 71 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] { |
| 72 | gdb_suppress_tests; |
| 73 | } |
| 74 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] { |
| 75 | gdb_suppress_tests; |
| 76 | } |
| 77 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] { |
| 78 | gdb_suppress_tests; |
| 79 | } |
| 80 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] { |
| 81 | gdb_suppress_tests; |
| 82 | } |
| 83 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] { |
| 84 | gdb_suppress_tests |
| 85 | } |
| 86 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] { |
| 87 | gdb_suppress_tests |
| 88 | } |
| 89 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] { |
| 90 | gdb_suppress_tests |
| 91 | } |
| 92 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] { |
| 93 | gdb_suppress_tests |
| 94 | } |
| 95 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] { |
| 96 | gdb_suppress_tests |
| 97 | } |
| 98 | if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] { |
| 99 | gdb_suppress_tests |
| 100 | } |
| 101 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] { |
| 102 | gdb_suppress_tests |
| 103 | } |
| 104 | # Hmmmm? |
| 105 | gdb_stop_suppressing_tests; |
| 106 | } |
| 107 | |
| 108 | |
| 109 | # |
| 110 | # Test bitfield containment. |
| 111 | # Fill alternating fields with all 1's and verify that none of the bits |
| 112 | # "bleed over" to the other fields. |
| 113 | # |
| 114 | |
| 115 | proc bitfield_containment {} { |
| 116 | global decimal |
| 117 | global hex |
| 118 | global gdb_prompt |
| 119 | global srcfile |
| 120 | |
| 121 | delete_breakpoints |
| 122 | |
| 123 | if { ![runto break2] } { |
| 124 | gdb_suppress_tests |
| 125 | } |
| 126 | |
| 127 | if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] { |
| 128 | gdb_suppress_tests |
| 129 | } |
| 130 | |
| 131 | if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] { |
| 132 | gdb_suppress_tests |
| 133 | } |
| 134 | |
| 135 | # If program is compiled with Sun CC, then these print out as their |
| 136 | # actual sizes; if compiled with gcc, they print out as 0xffffffff |
| 137 | # (which strikes me as bogus, but accept it at least for now). |
| 138 | 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_suppress_tests |
| 140 | } |
| 141 | gdb_stop_suppressing_tests; |
| 142 | } |
| 143 | |
| 144 | # Test unsigned bitfields for unsignedness and range. |
| 145 | # Fill the unsigned fields with the maximum positive value and verify that |
| 146 | # the values are printed correctly. |
| 147 | |
| 148 | proc bitfield_unsignedness {} { |
| 149 | global decimal |
| 150 | global hex |
| 151 | global gdb_prompt |
| 152 | global srcfile |
| 153 | |
| 154 | delete_breakpoints |
| 155 | |
| 156 | if { ![runto break3] } { |
| 157 | gdb_suppress_tests |
| 158 | } |
| 159 | |
| 160 | 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_suppress_tests |
| 162 | } |
| 163 | gdb_stop_suppressing_tests; |
| 164 | } |
| 165 | |
| 166 | # |
| 167 | # Test signed bitfields for signedness and range. |
| 168 | # Fill the signed fields with the maximum positive value, then the maximally |
| 169 | # negative value, then -1, and verify in each case that the values are |
| 170 | # printed correctly. |
| 171 | # |
| 172 | |
| 173 | proc bitfield_signedness {} { |
| 174 | global decimal |
| 175 | global hex |
| 176 | global gdb_prompt |
| 177 | global srcfile |
| 178 | |
| 179 | delete_breakpoints |
| 180 | |
| 181 | if { ! [runto break4] } { |
| 182 | gdb_suppress_tests |
| 183 | } |
| 184 | |
| 185 | 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"] { |
| 186 | gdb_suppress_tests |
| 187 | } |
| 188 | |
| 189 | if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] { |
| 190 | gdb_suppress_tests |
| 191 | } |
| 192 | |
| 193 | # Determine if the target has signed bitfields so we can xfail the |
| 194 | # the signed bitfield tests if it doesn't. |
| 195 | gdb_test_multiple "print i" "determining signed-ness of bitfields" { |
| 196 | -re ".* = -256.*$gdb_prompt $" { |
| 197 | pass "determining signed-ness of bitfields" |
| 198 | } |
| 199 | -re ".* = 256.*$gdb_prompt $" { |
| 200 | pass "determining signed-ness of bitfields" |
| 201 | setup_xfail "*-*-*" |
| 202 | } |
| 203 | -re ".*$gdb_prompt $" { |
| 204 | fail "determining signed-ness of bitfields" |
| 205 | gdb_suppress_tests |
| 206 | } |
| 207 | default { |
| 208 | fail "determining signed-ness of bitfields" ; |
| 209 | gdb_suppress_tests; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] { |
| 214 | gdb_suppress_tests |
| 215 | } |
| 216 | |
| 217 | if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] { |
| 218 | gdb_suppress_tests |
| 219 | } |
| 220 | |
| 221 | if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] { |
| 222 | gdb_suppress_tests |
| 223 | } |
| 224 | # Hmmmm??? |
| 225 | gdb_stop_suppressing_tests; |
| 226 | } |
| 227 | |
| 228 | # Test bitfields at non-zero offsets in a struct. |
| 229 | |
| 230 | proc bitfield_at_offset {} { |
| 231 | global decimal |
| 232 | global hex |
| 233 | global gdb_prompt |
| 234 | global srcfile |
| 235 | |
| 236 | gdb_breakpoint break5 |
| 237 | if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] { |
| 238 | return |
| 239 | } |
| 240 | |
| 241 | set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*" |
| 242 | set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*" |
| 243 | gdb_test "print container" "$one$two" "distinct bitfields in container" |
| 244 | gdb_test "print container.one.u3" ".* = 5" |
| 245 | gdb_test "print container.two.u3" ".* = 3" |
| 246 | } |
| 247 | |
| 248 | gdb_start |
| 249 | gdb_reinitialize_dir $srcdir/$subdir |
| 250 | gdb_load ${binfile} |
| 251 | |
| 252 | gdb_test_no_output "set print sevenbit-strings" |
| 253 | |
| 254 | bitfield_uniqueness |
| 255 | bitfield_containment |
| 256 | bitfield_unsignedness |
| 257 | bitfield_signedness |
| 258 | bitfield_at_offset |