gdb/testsuite/gdb.base/bitfields.exp

   1 # Copyright 1992, 1994, 1995, 1997, 2007, 2008, 2009
   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 written by Fred Fish. (fnf@cygnus.com)
  18
  19 if $tracelevel then {
  20         strace $tracelevel
  21 }
  22
  23 set prms_id 0
  24 set bug_id 0
  25
  26 set testfile "bitfields"
  27 set srcfile ${testfile}.c
  28 set binfile ${objdir}/${subdir}/${testfile}
  29 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  30     untested bitfields.exp
  31     return -1
  32 }
  33
  34 #
  35 # Test bitfield locating and uniqueness.
  36 # For each member, set that member to 1 and verify that the member (and only
  37 # that member) is 1, then reset it back to 0.
  38 #
  39
  40 proc bitfield_uniqueness {} {
  41     global decimal
  42     global hex
  43     global gdb_prompt
  44     global srcfile
  45
  46     if { ! [runto break1] } {
  47         gdb_suppress_tests;
  48     }
  49
  50     if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
  51         gdb_suppress_tests;
  52     }
  53     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
  54         gdb_suppress_tests;
  55     }
  56     # Note that we check for s1 as either 1 or -1, so that failure to
  57     # treat it correctly as a signed 1bit field (values 0 or -1) while
  58     # printing its value does not cause a spurious failure.  We do the
  59     # signedness preservation test later.
  60     if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
  61         gdb_suppress_tests;
  62     }
  63     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
  64         gdb_suppress_tests;
  65     }
  66     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
  67         gdb_suppress_tests;
  68     }
  69     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
  70         gdb_suppress_tests;
  71     }
  72     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
  73         gdb_suppress_tests;
  74     }
  75     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
  76         gdb_suppress_tests;
  77     }
  78     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
  79         gdb_suppress_tests;
  80     }
  81     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
  82         gdb_suppress_tests;
  83     }
  84     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
  85         gdb_suppress_tests;
  86     }
  87     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
  88         gdb_suppress_tests;
  89     }
  90     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
  91         gdb_suppress_tests
  92     }
  93     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
  94         gdb_suppress_tests
  95     }
  96     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
  97         gdb_suppress_tests
  98     }
  99     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
 100         gdb_suppress_tests
 101     }
 102     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
 103         gdb_suppress_tests
 104     }
 105     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
 106         gdb_suppress_tests
 107     }
 108     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
 109         gdb_suppress_tests
 110     }
 111     # Hmmmm?
 112     gdb_stop_suppressing_tests;
 113 }
 114
 115
 116 #
 117 # Test bitfield containment.
 118 # Fill alternating fields with all 1's and verify that none of the bits
 119 # "bleed over" to the other fields.
 120 #
 121
 122 proc bitfield_containment {} {
 123     global decimal
 124     global hex
 125     global gdb_prompt
 126     global srcfile
 127
 128     delete_breakpoints
 129
 130     if { ![runto break2] } {
 131         gdb_suppress_tests
 132     }
 133
 134     if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
 135         gdb_suppress_tests
 136     }
 137
 138     if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
 139         gdb_suppress_tests
 140     }
 141
 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"] {
 146         gdb_suppress_tests
 147     }
 148     gdb_stop_suppressing_tests;
 149 }
 150
 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.
 154
 155 proc bitfield_unsignedness {} {
 156     global decimal
 157     global hex
 158     global gdb_prompt
 159     global srcfile
 160
 161     delete_breakpoints
 162
 163     if { ![runto break3] } {
 164         gdb_suppress_tests
 165     }
 166
 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"] {
 168         gdb_suppress_tests
 169     }
 170     gdb_stop_suppressing_tests;
 171 }
 172
 173 #
 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
 177 # printed correctly.
 178 #
 179
 180 proc bitfield_signedness {} {
 181     global decimal
 182     global hex
 183     global gdb_prompt
 184     global srcfile
 185
 186     delete_breakpoints
 187
 188     if { ! [runto break4] } {
 189         gdb_suppress_tests
 190     }
 191
 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"] {
 193         gdb_suppress_tests
 194     }
 195
 196     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
 197         gdb_suppress_tests
 198     }
 199
 200     # Determine if the target has signed bitfields so we can xfail the
 201     # the signed bitfield tests if it doesn't.
 202     send_gdb "print i\n"
 203     gdb_expect {
 204         -re ".* = -256.*$gdb_prompt $" {
 205             pass "determining signed-ness of bitfields"
 206         }
 207         -re ".* = 256.*$gdb_prompt $" {
 208             pass "determining signed-ness of bitfields"
 209             setup_xfail "*-*-*"
 210         }
 211         -re ".*$gdb_prompt $" {
 212             fail "determining signed-ness of bitfields"
 213             gdb_suppress_tests
 214         }
 215         default {
 216             fail "determining signed-ness of bitfields" ;
 217             gdb_suppress_tests;
 218         }
 219     }
 220
 221     if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
 222         gdb_suppress_tests
 223     }
 224
 225     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
 226         gdb_suppress_tests
 227     }
 228
 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"] {
 230         gdb_suppress_tests
 231     }
 232     # Hmmmm???
 233     gdb_stop_suppressing_tests;
 234 }
 235
 236 gdb_start
 237 gdb_reinitialize_dir $srcdir/$subdir
 238 gdb_load ${binfile}
 239
 240 send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
 241
 242 bitfield_uniqueness
 243 if [istarget "mips-idt-*"] then {
 244     # Restart because IDT/SIM runs out of file descriptors.
 245     gdb_exit
 246     gdb_start
 247     gdb_reinitialize_dir $srcdir/$subdir
 248     gdb_load ${binfile}
 249 }
 250 bitfield_containment
 251 if [istarget "mips-idt-*"] then {
 252     # Restart because IDT/SIM runs out of file descriptors.
 253     gdb_exit
 254     gdb_start
 255     gdb_reinitialize_dir $srcdir/$subdir
 256     gdb_load ${binfile}
 257 }
 258 bitfield_unsignedness
 259 if [istarget "mips-idt-*"] then {
 260     # Restart because IDT/SIM runs out of file descriptors.
 261     gdb_exit
 262     gdb_start
 263     gdb_reinitialize_dir $srcdir/$subdir
 264     gdb_load ${binfile}
 265 }
 266 bitfield_signedness