gdb/testsuite/gdb.base/bitfields.exp

   1 # Copyright 1992, 1994, 1995, 1997, 2007 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}" "${binfile}" executable {debug}] != "" } {
  33     untested bitfields.exp
  34     return -1
  35 }
  36
  37 #
  38 # Test bitfield locating and uniqueness.
  39 # For each member, set that member to 1 and verify that the member (and only
  40 # that member) is 1, then reset it back to 0.
  41 #
  42
  43 proc bitfield_uniqueness {} {
  44     global decimal
  45     global hex
  46     global gdb_prompt
  47     global srcfile
  48
  49     if { ! [runto break1] } {
  50         gdb_suppress_tests;
  51     }
  52
  53     if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
  54         gdb_suppress_tests;
  55     }
  56     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
  57         gdb_suppress_tests;
  58     }
  59     # Note that we check for s1 as either 1 or -1, so that failure to
  60     # treat it correctly as a signed 1bit field (values 0 or -1) while
  61     # printing its value does not cause a spurious failure.  We do the
  62     # signedness preservation test later.
  63     if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
  64         gdb_suppress_tests;
  65     }
  66     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
  67         gdb_suppress_tests;
  68     }
  69     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
  70         gdb_suppress_tests;
  71     }
  72     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
  73         gdb_suppress_tests;
  74     }
  75     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
  76         gdb_suppress_tests;
  77     }
  78     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
  79         gdb_suppress_tests;
  80     }
  81     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
  82         gdb_suppress_tests;
  83     }
  84     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
  85         gdb_suppress_tests;
  86     }
  87     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
  88         gdb_suppress_tests;
  89     }
  90     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
  91         gdb_suppress_tests;
  92     }
  93     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
  94         gdb_suppress_tests
  95     }
  96     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
  97         gdb_suppress_tests
  98     }
  99     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
 100         gdb_suppress_tests
 101     }
 102     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
 103         gdb_suppress_tests
 104     }
 105     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
 106         gdb_suppress_tests
 107     }
 108     if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
 109         gdb_suppress_tests
 110     }
 111     if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
 112         gdb_suppress_tests
 113     }
 114     # Hmmmm?
 115     gdb_stop_suppressing_tests;
 116 }
 117
 118
 119 #
 120 # Test bitfield containment.
 121 # Fill alternating fields with all 1's and verify that none of the bits
 122 # "bleed over" to the other fields.
 123 #
 124
 125 proc bitfield_containment {} {
 126     global decimal
 127     global hex
 128     global gdb_prompt
 129     global srcfile
 130
 131     delete_breakpoints
 132
 133     if { ![runto break2] } {
 134         gdb_suppress_tests
 135     }
 136
 137     if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
 138         gdb_suppress_tests
 139     }
 140
 141     if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
 142         gdb_suppress_tests
 143     }
 144
 145     # If program is compiled with Sun CC, then these print out as their
 146     # actual sizes; if compiled with gcc, they print out as 0xffffffff
 147     # (which strikes me as bogus, but accept it at least for now).
 148     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"] {
 149         gdb_suppress_tests
 150     }
 151     gdb_stop_suppressing_tests;
 152 }
 153
 154 # Test unsigned bitfields for unsignedness and range.
 155 # Fill the unsigned fields with the maximum positive value and verify that
 156 # the values are printed correctly.
 157
 158 proc bitfield_unsignedness {} {
 159     global decimal
 160     global hex
 161     global gdb_prompt
 162     global srcfile
 163
 164     delete_breakpoints
 165
 166     if { ![runto break3] } {
 167         gdb_suppress_tests
 168     }
 169
 170     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"] {
 171         gdb_suppress_tests
 172     }
 173     gdb_stop_suppressing_tests;
 174 }
 175
 176 #
 177 # Test signed bitfields for signedness and range.
 178 # Fill the signed fields with the maximum positive value, then the maximally
 179 # negative value, then -1, and verify in each case that the values are
 180 # printed correctly.
 181 #
 182
 183 proc bitfield_signedness {} {
 184     global decimal
 185     global hex
 186     global gdb_prompt
 187     global srcfile
 188
 189     delete_breakpoints
 190
 191     if { ! [runto break4] } {
 192         gdb_suppress_tests
 193     }
 194
 195     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"] {
 196         gdb_suppress_tests
 197     }
 198
 199     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
 200         gdb_suppress_tests
 201     }
 202
 203     # Determine if the target has signed bitfields so we can xfail the
 204     # the signed bitfield tests if it doesn't.
 205     send_gdb "print i\n"
 206     gdb_expect {
 207         -re ".* = -256.*$gdb_prompt $" {
 208             pass "determining signed-ness of bitfields"
 209         }
 210         -re ".* = 256.*$gdb_prompt $" {
 211             pass "determining signed-ness of bitfields"
 212             setup_xfail "*-*-*"
 213         }
 214         -re ".*$gdb_prompt $" {
 215             fail "determining signed-ness of bitfields"
 216             gdb_suppress_tests
 217         }
 218         default {
 219             fail "determining signed-ness of bitfields" ;
 220             gdb_suppress_tests;
 221         }
 222     }
 223
 224     if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
 225         gdb_suppress_tests
 226     }
 227
 228     if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
 229         gdb_suppress_tests
 230     }
 231
 232     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"] {
 233         gdb_suppress_tests
 234     }
 235     # Hmmmm???
 236     gdb_stop_suppressing_tests;
 237 }
 238
 239 gdb_start
 240 gdb_reinitialize_dir $srcdir/$subdir
 241 gdb_load ${binfile}
 242
 243 send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
 244
 245 bitfield_uniqueness
 246 if [istarget "mips-idt-*"] then {
 247     # Restart because IDT/SIM runs out of file descriptors.
 248     gdb_exit
 249     gdb_start
 250     gdb_reinitialize_dir $srcdir/$subdir
 251     gdb_load ${binfile}
 252 }
 253 bitfield_containment
 254 if [istarget "mips-idt-*"] then {
 255     # Restart because IDT/SIM runs out of file descriptors.
 256     gdb_exit
 257     gdb_start
 258     gdb_reinitialize_dir $srcdir/$subdir
 259     gdb_load ${binfile}
 260 }
 261 bitfield_unsignedness
 262 if [istarget "mips-idt-*"] then {
 263     # Restart because IDT/SIM runs out of file descriptors.
 264     gdb_exit
 265     gdb_start
 266     gdb_reinitialize_dir $srcdir/$subdir
 267     gdb_load ${binfile}
 268 }
 269 bitfield_signedness