1# Copyright 1992-2023 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 19standard_testfile 20 21if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} { 22 return -1 23} 24 25# 26# Test bitfield locating and uniqueness. 27# For each member, set that member to 1 and verify that the member (and only 28# that member) is 1, then reset it back to 0. 29# 30 31proc bitfield_uniqueness {} { 32 global decimal 33 global hex 34 global gdb_prompt 35 global srcfile 36 37 if { ! [runto break1] } { 38 return 39 } 40 41 gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" 42 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1" 43 44 # Note that we check for s1 as either 1 or -1, so that failure to 45 # treat it correctly as a signed 1bit field (values 0 or -1) while 46 # printing its value does not cause a spurious failure. We do the 47 # signedness preservation test later. 48 gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)" 49 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2" 50 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)" 51 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3" 52 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)" 53 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4" 54 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)" 55 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5" 56 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)" 57 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6" 58 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)" 59 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7" 60 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)" 61 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8" 62 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)" 63 gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9" 64 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)" 65} 66 67 68# 69# Test bitfield containment. 70# Fill alternating fields with all 1's and verify that none of the bits 71# "bleed over" to the other fields. 72# 73 74proc bitfield_containment {} { 75 global decimal 76 global hex 77 global gdb_prompt 78 global srcfile 79 80 delete_breakpoints 81 82 if { ![runto break2] } { 83 return 84 } 85 86 gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1" 87 gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2" 88 89 # If program is compiled with Sun CC, then these print out as their 90 # actual sizes; if compiled with gcc, they print out as 0xffffffff 91 # (which strikes me as bogus, but accept it at least for now). 92 gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2" 93} 94 95# Test unsigned bitfields for unsignedness and range. 96# Fill the unsigned fields with the maximum positive value and verify that 97# the values are printed correctly. 98 99proc bitfield_unsignedness {} { 100 global decimal 101 global hex 102 global gdb_prompt 103 global srcfile 104 105 delete_breakpoints 106 107 if { ![runto break3] } { 108 return 109 } 110 111 gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges" 112} 113 114# 115# Test signed bitfields for signedness and range. 116# Fill the signed fields with the maximum positive value, then the maximally 117# negative value, then -1, and verify in each case that the values are 118# printed correctly. 119# 120 121proc bitfield_signedness {} { 122 global decimal 123 global hex 124 global gdb_prompt 125 global srcfile 126 127 delete_breakpoints 128 129 if { ! [runto break4] } { 130 return 131 } 132 133 gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values" 134 gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1" 135 136 # Determine if the target has signed bitfields so we can xfail the 137 # the signed bitfield tests if it doesn't. 138 gdb_test_multiple "print i" "determining signed-ness of bitfields" { 139 -re ".* = -256.*$gdb_prompt $" { 140 pass "determining signed-ness of bitfields" 141 } 142 -re ".* = 256.*$gdb_prompt $" { 143 pass "determining signed-ness of bitfields" 144 setup_xfail "*-*-*" 145 } 146 -re ".*$gdb_prompt $" { 147 fail "determining signed-ness of bitfields" 148 } 149 default { 150 fail "determining signed-ness of bitfields" 151 } 152 } 153 154 gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values" 155 gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2" 156 gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1" 157} 158 159# Test bitfields at non-zero offsets in a struct. 160 161proc bitfield_at_offset {} { 162 global decimal 163 global hex 164 global gdb_prompt 165 global srcfile 166 167 gdb_breakpoint break5 168 if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] { 169 return 170 } 171 172 set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*" 173 set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*" 174 gdb_test "print container" "$one$two" "distinct bitfields in container" 175 gdb_test "print container.one.u3" ".* = 5" 176 gdb_test "print container.two.u3" ".* = 3" 177} 178 179proc bitfield_internalvar {} { 180 global gdb_prompt 181 182 # First, we create an internal var holding an instance of 183 # the struct (zeroed out). 184 gdb_test "set \$myvar = (struct internalvartest) \{0\}" "" \ 185 "set internal var" 186 187 # Now, we set the proper bits. 188 gdb_test_no_output "set \$myvar.a = 0" 189 gdb_test_no_output "set \$myvar.inner.b = 1" 190 gdb_test_no_output "set \$myvar.inner.deep.c = 0" 191 gdb_test_no_output "set \$myvar.inner.deep.d = -1" 192 gdb_test_no_output "set \$myvar.inner.e = 1" 193 gdb_test_no_output "set \$myvar.f = 1" 194 195 # Here comes the true testing. 196 gdb_test "print \$myvar.a" "\\$\[0-9\]\+ = 0" 197 gdb_test "print \$myvar.inner.b" "\\$\[0-9\]\+ = 1" 198 gdb_test "print \$myvar.inner.deep.c" "\\$\[0-9\]\+ = 0" 199 gdb_test "print \$myvar.inner.deep.d" "\\$\[0-9\]\+ = -1" 200 gdb_test "print \$myvar.inner.e" "\\$\[0-9\]\+ = -1" 201 gdb_test "print \$myvar.f" "\\$\[0-9\]\+ = -1" 202} 203 204gdb_test_no_output "set print sevenbit-strings" 205 206bitfield_uniqueness 207bitfield_containment 208bitfield_unsignedness 209bitfield_signedness 210bitfield_at_offset 211bitfield_internalvar 212