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[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [gdb/] [testsuite/] [gdb.base/] [bitfields.exp] - Blame information for rev 25

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1 25 jlechner
# Copyright 1992, 1994, 1995, 1997, 2007, 2008 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program.  If not, see .
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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# This file was written by Fred Fish. (fnf@cygnus.com)
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if $tracelevel then {
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        strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile "bitfields"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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    untested bitfields.exp
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    return -1
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}
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#
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# Test bitfield locating and uniqueness.
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# For each member, set that member to 1 and verify that the member (and only
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# that member) is 1, then reset it back to 0.
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#
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proc bitfield_uniqueness {} {
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    global decimal
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    global hex
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    global gdb_prompt
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    global srcfile
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    if { ! [runto break1] } {
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        gdb_suppress_tests;
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    }
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.*"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
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        gdb_suppress_tests;
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    }
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    # Note that we check for s1 as either 1 or -1, so that failure to
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    # treat it correctly as a signed 1bit field (values 0 or -1) while
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    # printing its value does not cause a spurious failure.  We do the
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    # signedness preservation test later.
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    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)"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
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        gdb_suppress_tests;
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    }
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    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)"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
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        gdb_suppress_tests;
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    }
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    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)"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
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        gdb_suppress_tests;
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    }
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    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)"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
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        gdb_suppress_tests;
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    }
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    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)"] {
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        gdb_suppress_tests;
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
90
        gdb_suppress_tests;
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    }
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)"] {
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        gdb_suppress_tests
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    }
95
    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
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        gdb_suppress_tests
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    }
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    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)"] {
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        gdb_suppress_tests
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
102
        gdb_suppress_tests
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    }
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    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)"] {
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        gdb_suppress_tests
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    }
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    if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
108
        gdb_suppress_tests
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    }
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    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)"] {
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        gdb_suppress_tests
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    }
113
    # Hmmmm?
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    gdb_stop_suppressing_tests;
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}
116
 
117
 
118
#
119
# Test bitfield containment.
120
# Fill alternating fields with all 1's and verify that none of the bits
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# "bleed over" to the other fields.
122
#
123
 
124
proc bitfield_containment {} {
125
    global decimal
126
    global hex
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    global gdb_prompt
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    global srcfile
129
 
130
    delete_breakpoints
131
 
132
    if { ![runto break2] } {
133
        gdb_suppress_tests
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    }
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"] {
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        gdb_suppress_tests
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    }
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    if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
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        gdb_suppress_tests
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    }
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    # If program is compiled with Sun CC, then these print out as their
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    # actual sizes; if compiled with gcc, they print out as 0xffffffff
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    # (which strikes me as bogus, but accept it at least for now).
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    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
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# the values are printed correctly.
156
 
157
proc bitfield_unsignedness {} {
158
    global decimal
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    global hex
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    global gdb_prompt
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    global srcfile
162
 
163
    delete_breakpoints
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165
    if { ![runto break3] } {
166
        gdb_suppress_tests
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    }
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
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    }
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    gdb_stop_suppressing_tests;
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}
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175
#
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# Test signed bitfields for signedness and range.
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# 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
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# printed correctly.
180
#
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182
proc bitfield_signedness {} {
183
    global decimal
184
    global hex
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    global gdb_prompt
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    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 $" {
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            pass "determining signed-ness of bitfields"
208
        }
209
        -re ".* = 256.*$gdb_prompt $" {
210
            pass "determining signed-ness of bitfields"
211
            setup_xfail "*-*-*"
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        }
213
        -re ".*$gdb_prompt $" {
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            fail "determining signed-ness of bitfields"
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            gdb_suppress_tests
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        }
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        default {
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            fail "determining signed-ness of bitfields" ;
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            gdb_suppress_tests;
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        }
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    }
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    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"] {
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        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
 
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    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

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