gdb/testsuite/gdb.base/bitfields.exp

   1 # Copyright 1992, 1994, 1995, 1997, 2007, 2008 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 if $tracelevel then {
  19         strace $tracelevel
  20 }
  21
  22 set prms_id 0
  23 set bug_id 0
  24
  25 set testfile "bitfields"
  26 set srcfile ${testfile}.c
  27 set binfile ${objdir}/${subdir}/${testfile}
  28 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  29     untested bitfields.exp
  30     return -1
  31 }
  32
  33 #
  34 # Test bitfield locating and uniqueness.
  35 # For each member, set that member to 1 and verify that the member (and only
  36 # that member) is 1, then reset it back to 0.
  37 #
  38
  39 proc bitfield_uniqueness {} {
  40     global decimal
  41     global hex
  42     global gdb_prompt
  43     global srcfile
  44
  45     if { ! [runto break1] } {
  46         gdb_suppress_tests;
  47     }
  48
  49     if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
  50         gdb_suppress_tests;
  51     }
  52     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
  53         gdb_suppress_tests;
  54     }
  55     # Note that we check for s1 as either 1 or -1, so that failure to
  56     # treat it correctly as a signed 1bit field (values 0 or -1) while
  57     # printing its value does not cause a spurious failure.  We do the
  58     # signedness preservation test later.
  59     if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
  60         gdb_suppress_tests;
  61     }
  62     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
  63         gdb_suppress_tests;
  64     }
  65     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
  66         gdb_suppress_tests;
  67     }
  68     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
  69         gdb_suppress_tests;
  70     }
  71     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
  72         gdb_suppress_tests;
  73     }
  74     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
  75         gdb_suppress_tests;
  76     }
  77     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
  78         gdb_suppress_tests;
  79     }
  80     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
  81         gdb_suppress_tests;
  82     }
  83     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
  84         gdb_suppress_tests;
  85     }
  86     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
  87         gdb_suppress_tests;
  88     }
  89     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
  90         gdb_suppress_tests
  91     }
  92     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
  93         gdb_suppress_tests
  94     }
  95     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
  96         gdb_suppress_tests
  97     }
  98     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
  99         gdb_suppress_tests
 100     }
 101     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
 102         gdb_suppress_tests
 103     }
 104     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
 105         gdb_suppress_tests
 106     }
 107     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
 108         gdb_suppress_tests
 109     }
 110     # Hmmmm?
 111     gdb_stop_suppressing_tests;
 112 }
 113
 114
 115 #
 116 # Test bitfield containment.
 117 # Fill alternating fields with all 1's and verify that none of the bits
 118 # "bleed over" to the other fields.
 119 #
 120
 121 proc bitfield_containment {} {
 122     global decimal
 123     global hex
 124     global gdb_prompt
 125     global srcfile
 126
 127     delete_breakpoints
 128
 129     if { ![runto break2] } {
 130         gdb_suppress_tests
 131     }
 132
 133     if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
 134         gdb_suppress_tests
 135     }
 136
 137     if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
 138         gdb_suppress_tests
 139     }
 140
 141     # If program is compiled with Sun CC, then these print out as their
 142     # actual sizes; if compiled with gcc, they print out as 0xffffffff
 143     # (which strikes me as bogus, but accept it at least for now).
 144     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"] {
 145         gdb_suppress_tests
 146     }
 147     gdb_stop_suppressing_tests;
 148 }
 149
 150 # Test unsigned bitfields for unsignedness and range.
 151 # Fill the unsigned fields with the maximum positive value and verify that
 152 # the values are printed correctly.
 153
 154 proc bitfield_unsignedness {} {
 155     global decimal
 156     global hex
 157     global gdb_prompt
 158     global srcfile
 159
 160     delete_breakpoints
 161
 162     if { ![runto break3] } {
 163         gdb_suppress_tests
 164     }
 165
 166     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"] {
 167         gdb_suppress_tests
 168     }
 169     gdb_stop_suppressing_tests;
 170 }
 171
 172 #
 173 # Test signed bitfields for signedness and range.
 174 # Fill the signed fields with the maximum positive value, then the maximally
 175 # negative value, then -1, and verify in each case that the values are
 176 # printed correctly.
 177 #
 178
 179 proc bitfield_signedness {} {
 180     global decimal
 181     global hex
 182     global gdb_prompt
 183     global srcfile
 184
 185     delete_breakpoints
 186
 187     if { ! [runto break4] } {
 188         gdb_suppress_tests
 189     }
 190
 191     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"] {
 192         gdb_suppress_tests
 193     }
 194
 195     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
 196         gdb_suppress_tests
 197     }
 198
 199     # Determine if the target has signed bitfields so we can xfail the
 200     # the signed bitfield tests if it doesn't.
 201     send_gdb "print i\n"
 202     gdb_expect {
 203         -re ".* = -256.*$gdb_prompt $" {
 204             pass "determining signed-ness of bitfields"
 205         }
 206         -re ".* = 256.*$gdb_prompt $" {
 207             pass "determining signed-ness of bitfields"
 208             setup_xfail "*-*-*"
 209         }
 210         -re ".*$gdb_prompt $" {
 211             fail "determining signed-ness of bitfields"
 212             gdb_suppress_tests
 213         }
 214         default {
 215             fail "determining signed-ness of bitfields" ;
 216             gdb_suppress_tests;
 217         }
 218     }
 219
 220     if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
 221         gdb_suppress_tests
 222     }
 223
 224     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
 225         gdb_suppress_tests
 226     }
 227
 228     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"] {
 229         gdb_suppress_tests
 230     }
 231     # Hmmmm???
 232     gdb_stop_suppressing_tests;
 233 }
 234
 235 gdb_start
 236 gdb_reinitialize_dir $srcdir/$subdir
 237 gdb_load ${binfile}
 238
 239 send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
 240
 241 bitfield_uniqueness
 242 if [istarget "mips-idt-*"] then {
 243     # Restart because IDT/SIM runs out of file descriptors.
 244     gdb_exit
 245     gdb_start
 246     gdb_reinitialize_dir $srcdir/$subdir
 247     gdb_load ${binfile}
 248 }
 249 bitfield_containment
 250 if [istarget "mips-idt-*"] then {
 251     # Restart because IDT/SIM runs out of file descriptors.
 252     gdb_exit
 253     gdb_start
 254     gdb_reinitialize_dir $srcdir/$subdir
 255     gdb_load ${binfile}
 256 }
 257 bitfield_unsignedness
 258 if [istarget "mips-idt-*"] then {
 259     # Restart because IDT/SIM runs out of file descriptors.
 260     gdb_exit
 261     gdb_start
 262     gdb_reinitialize_dir $srcdir/$subdir
 263     gdb_load ${binfile}
 264 }
 265 bitfield_signedness