| 1 | # Copyright 1992, 1994, 1995, 1997, 2004, 2007, 2008 |
| 2 | # Free Software Foundation, Inc. |
| 3 | |
| 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. |
| 8 | # |
| 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. |
| 13 | # |
| 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/>. |
| 16 | |
| 17 | # This file was adapted from bitfields.exp by Paul Hilfinger |
| 18 | # (Hilfinger@gnat.com) |
| 19 | |
| 20 | # |
| 21 | # Tests for bit-fields that do not fit in type (unsigned) int, but do fit |
| 22 | # in type (unsigned) long long. We perform essentially the same tests as |
| 23 | # in bitfields.c, which considers only bit-fields that are <= 9 bits long. |
| 24 | # |
| 25 | |
| 26 | if $tracelevel then { |
| 27 | strace $tracelevel |
| 28 | } |
| 29 | |
| 30 | set prms_id 0 |
| 31 | set bug_id 0 |
| 32 | |
| 33 | set testfile "bitfields2" |
| 34 | set srcfile ${testfile}.c |
| 35 | set binfile ${objdir}/${subdir}/${testfile} |
| 36 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| 37 | untested bitfields2.exp |
| 38 | return -1 |
| 39 | } |
| 40 | |
| 41 | set has_signed_bitfields 1 |
| 42 | |
| 43 | # |
| 44 | # Continue to expected breakpoint at FUNCTION. Append TAG to make pass/fail |
| 45 | # messages (to make them unique). Suppress tests on failure. |
| 46 | # |
| 47 | proc continue_test { function tag } { |
| 48 | global decimal |
| 49 | global srcfile |
| 50 | |
| 51 | if [gdb_test "cont" "Break.*$function \\(\\) at .*$srcfile:$decimal.*" "continuing to $function $tag"] { |
| 52 | gdb_suppress_tests |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | # |
| 57 | # Start next test by running to tester and then to FUNCTION. Suppresses |
| 58 | # tests on failure. |
| 59 | # |
| 60 | proc start_test { function } { |
| 61 | delete_breakpoints |
| 62 | if [gdb_test "break tester" "" "break tester prior to $function"] { |
| 63 | gdb_suppress_tests |
| 64 | } |
| 65 | continue_test "tester" "prior to $function" |
| 66 | if ![gdb_breakpoint $function] { |
| 67 | gdb_suppress_tests |
| 68 | } |
| 69 | continue_test $function "#0" |
| 70 | } |
| 71 | |
| 72 | |
| 73 | # |
| 74 | # Test bitfield locating and uniqueness. |
| 75 | # For each member, set that member to 1 and verify that the member (and only |
| 76 | # that member) is 1, then reset it back to 0. |
| 77 | # |
| 78 | |
| 79 | proc bitfield_uniqueness {} { |
| 80 | global decimal |
| 81 | global hex |
| 82 | global gdb_prompt |
| 83 | global srcfile |
| 84 | |
| 85 | start_test break1 |
| 86 | |
| 87 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 1, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.s1 = 1"] { |
| 88 | gdb_suppress_tests; |
| 89 | } |
| 90 | continue_test break1 "#1" |
| 91 | if [gdb_test "print flags" ".*u1 = 1, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u1 = 1"] { |
| 92 | gdb_suppress_tests; |
| 93 | } |
| 94 | continue_test break1 "#2" |
| 95 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 1, s3 = 0.*" "bitfield uniqueness; flags.s2 = 1"] { |
| 96 | gdb_suppress_tests; |
| 97 | } |
| 98 | continue_test break1 "#3" |
| 99 | if [gdb_test "print flags" ".*u1 = 0, u2 = 1, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u2 = 1"] { |
| 100 | gdb_suppress_tests; |
| 101 | } |
| 102 | continue_test break1 "#4" |
| 103 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 1.*" "bitfield uniqueness; flags.s3 = 1"] { |
| 104 | gdb_suppress_tests; |
| 105 | } |
| 106 | continue_test break1 "#5" |
| 107 | if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 1, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u3 = 1"] { |
| 108 | gdb_suppress_tests |
| 109 | } |
| 110 | gdb_stop_suppressing_tests; |
| 111 | } |
| 112 | |
| 113 | |
| 114 | # |
| 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. |
| 118 | # |
| 119 | |
| 120 | proc bitfield_containment {} { |
| 121 | global decimal |
| 122 | global hex |
| 123 | global gdb_prompt |
| 124 | global srcfile |
| 125 | |
| 126 | start_test break2 |
| 127 | |
| 128 | # If program is compiled with Sun CC, signed fields print out as their |
| 129 | # actual sizes; if compiled with gcc, they print out as 0xffffffff. |
| 130 | if [gdb_test "print/x flags" "= {u1 = 0x7fff, u2 = 0x0, u3 = 0xffff, s1 = 0x0, s2 = 0x(1ffffffff|f*), s3 = 0x0}" "bitfield containment; flags.u1, flags.u3, and flags.s3 to all 1s"] { |
| 131 | gdb_suppress_tests |
| 132 | } |
| 133 | |
| 134 | continue_test break2 "#1" |
| 135 | |
| 136 | if [gdb_test "print/x flags" "= {u1 = 0x0, u2 = 0x1ffffffff, u3 = 0x0, s1 = 0x(7fff|f*), s2 = 0x0, s3 = 0xf*}" "bitfield containment; flags.u2, flags.s1, flags.s2 to all 1s"] { |
| 137 | gdb_suppress_tests |
| 138 | } |
| 139 | gdb_stop_suppressing_tests; |
| 140 | } |
| 141 | |
| 142 | # Test unsigned bitfields for unsignedness and range. |
| 143 | # Fill the unsigned fields with the maximum positive value and verify that |
| 144 | # the values are printed correctly. |
| 145 | |
| 146 | proc bitfield_unsignedness {} { |
| 147 | global decimal |
| 148 | global hex |
| 149 | global gdb_prompt |
| 150 | global srcfile |
| 151 | |
| 152 | start_test break3 |
| 153 | |
| 154 | if [gdb_test "print flags" ".*u1 = 32767, u2 = 8589934591, u3 = 65535, s1 = 0, s2 = 0, s3 = 0.*" "maximum unsigned bitfield values"] { |
| 155 | gdb_suppress_tests |
| 156 | } |
| 157 | gdb_stop_suppressing_tests; |
| 158 | } |
| 159 | |
| 160 | # |
| 161 | # Test signed bitfields for signedness and range. |
| 162 | # Fill the signed fields with the maximum positive value, then the maximally |
| 163 | # negative value, then -1, and verify in each case that the values are |
| 164 | # printed correctly. |
| 165 | # |
| 166 | |
| 167 | proc bitfield_signedness {} { |
| 168 | global decimal |
| 169 | global hex |
| 170 | global gdb_prompt |
| 171 | global srcfile |
| 172 | global has_signed_bitfields |
| 173 | |
| 174 | start_test break4 |
| 175 | |
| 176 | if [gdb_test "print flags" "= {.*u1 = 0, u2 = 0, u3 = 0, s1 = 16383, s2 = 4294967295, s3 = 32767.*}" "maximum signed bitfield values"] { |
| 177 | gdb_suppress_tests |
| 178 | } |
| 179 | |
| 180 | continue_test break4 "#1" |
| 181 | |
| 182 | # Determine if the target has signed bitfields so we can skip |
| 183 | # the signed bitfield tests if it doesn't. |
| 184 | set test "determining signed-ness of bitfields" |
| 185 | set has_signed_bitfields 0 |
| 186 | gdb_test_multiple "print i" $test { |
| 187 | -re ".* = -32768.*$gdb_prompt $" { |
| 188 | set has_signed_bitfields 1 |
| 189 | pass "determining signed-ness of bitfields" |
| 190 | } |
| 191 | -re ".* = 32768.*$gdb_prompt $" { |
| 192 | pass "determining signed-ness of bitfields" |
| 193 | } |
| 194 | -re ".*$gdb_prompt $" { |
| 195 | fail "determining signed-ness of bitfields" |
| 196 | gdb_suppress_tests |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | set test "most negative signed bitfield values" |
| 201 | if $has_signed_bitfields then { |
| 202 | if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -16384, s2 = -4294967296, s3 = -32768.*" $test ] { |
| 203 | gdb_suppress_tests |
| 204 | } |
| 205 | } else { |
| 206 | unsupported $test |
| 207 | } |
| 208 | |
| 209 | continue_test break4 "#2" |
| 210 | |
| 211 | set test "signed bitfields containing -1" |
| 212 | if $has_signed_bitfields then { |
| 213 | if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -1, s2 = -1, s3 = -1.*" $test ] { |
| 214 | gdb_suppress_tests |
| 215 | } |
| 216 | } else { |
| 217 | unsupported $test |
| 218 | } |
| 219 | |
| 220 | gdb_stop_suppressing_tests; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | # Test setting of long long bit fields from within GDB. |
| 225 | |
| 226 | proc bitfield_set {} { |
| 227 | global decimal |
| 228 | global hex |
| 229 | global gdb_prompt |
| 230 | global srcfile |
| 231 | global has_signed_bitfields |
| 232 | |
| 233 | start_test break5 |
| 234 | |
| 235 | set big_set_failed 0 |
| 236 | set test "set long long unsigned bitfield" |
| 237 | gdb_test_multiple "print flags.u2 = 0x100000000" $test { |
| 238 | -re "warning: Value does not fit.*$gdb_prompt $" { |
| 239 | fail "$test" |
| 240 | gdb_suppress_tests |
| 241 | } |
| 242 | -re "= 4294967296.*$gdb_prompt $" { |
| 243 | pass "$test" |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | set test "set long long signed bitfield positive" |
| 248 | gdb_test_multiple "print flags.s2 = 0x80000000" $test { |
| 249 | -re "warning: Value does not fit.*$gdb_prompt $" { |
| 250 | fail "$test" |
| 251 | gdb_suppress_tests |
| 252 | } |
| 253 | -re "= 2147483648.*$gdb_prompt $" { |
| 254 | pass "$test" |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = 2147483648, s3 = 0.*" "long long bitfield values after set"] { |
| 259 | gdb_suppress_tests |
| 260 | } |
| 261 | |
| 262 | set test "set long long signed bitfield negative" |
| 263 | if $has_signed_bitfields then { |
| 264 | gdb_test_multiple "print flags.s2 = -1" $test { |
| 265 | -re "warning: Value does not fit.*$gdb_prompt $" { |
| 266 | fail "$test" |
| 267 | gdb_suppress_tests |
| 268 | } |
| 269 | -re "= -1.*$gdb_prompt $" { |
| 270 | pass "$test" |
| 271 | } |
| 272 | } |
| 273 | } else { |
| 274 | unsupported $test |
| 275 | } |
| 276 | |
| 277 | set test "long long bitfield values after set negative" |
| 278 | if $has_signed_bitfields then { |
| 279 | if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = -1, s3 = 0.*" $test] { |
| 280 | gdb_suppress_tests |
| 281 | } |
| 282 | } else { |
| 283 | unsupported $test |
| 284 | } |
| 285 | |
| 286 | gdb_stop_suppressing_tests; |
| 287 | } |
| 288 | |
| 289 | gdb_start |
| 290 | gdb_reinitialize_dir $srcdir/$subdir |
| 291 | gdb_load ${binfile} |
| 292 | |
| 293 | send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $" |
| 294 | runto_main |
| 295 | |
| 296 | bitfield_uniqueness |
| 297 | bitfield_containment |
| 298 | bitfield_unsignedness |
| 299 | bitfield_signedness |
| 300 | bitfield_set |
| 301 | |