gdb/testsuite/gdb.base/bitfields.exp

   1 # Copyright (C) 1992, 1994, 1997 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 # This file was written by Fred Fish. (fnf@cygnus.com)
  21
  22 if $tracelevel then {
  23         strace $tracelevel
  24 }
  25
  26 set prms_id 0
  27 set bug_id 0
  28
  29 set testfile "bitfields"
  30 set srcfile ${testfile}.c
  31 set binfile ${objdir}/${subdir}/${testfile}
  32 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  33     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  34 }
  35
  36 #
  37 # Test bitfield locating and uniqueness.
  38 # For each member, set that member to 1 and verify that the member (and only
  39 # that member) is 1, then reset it back to 0.
  40 #
  41
  42 proc bitfield_uniqueness {} {
  43     global decimal
  44     global hex
  45     global gdb_prompt
  46     global srcfile
  47
  48     if { ! [runto break1] } {
  49         gdb_suppress_tests;
  50     }
  51
  52     if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
  53         gdb_suppress_tests;
  54     }
  55     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$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:$decimal.*" "continuing to break1 #9"] {
 108         gdb_suppress_tests
 109     }
 110     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
 111         gdb_suppress_tests
 112     }
 113     # Hmmmm?
 114     gdb_stop_suppressing_tests;
 115 }
 116
 117
 118 #
 119 # Test bitfield containment.
 120 # Fill alternating fields with all 1's and verify that none of the bits
 121 # "bleed over" to the other fields.
 122 #
 123
 124 proc bitfield_containment {} {
 125     global decimal
 126     global hex
 127     global gdb_prompt
 128     global srcfile
 129
 130     delete_breakpoints
 131
 132     if { ![runto break2] } {
 133         gdb_suppress_tests
 134     }
 135
 136     if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
 137         gdb_suppress_tests
 138     }
 139
 140     if [gdb_test "cont" "Break.*break2 \\(\\) at .*$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
 157 proc 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
 182 proc 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
 238 gdb_start
 239 gdb_reinitialize_dir $srcdir/$subdir
 240 gdb_load ${binfile}
 241
 242 send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
 243
 244 bitfield_uniqueness
 245 if [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 }
 252 bitfield_containment
 253 if [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 }
 260 bitfield_unsignedness
 261 if [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 }
 268 bitfield_signedness