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# Copyright 1992, 1994-1995, 1997, 2007-2012 Free Software Foundation,
# Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file was written by Fred Fish. (fnf@cygnus.com)
set testfile "bitfields"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested bitfields.exp
return -1
}
#
# Test bitfield locating and uniqueness.
# For each member, set that member to 1 and verify that the member (and only
# that member) is 1, then reset it back to 0.
#
proc bitfield_uniqueness {} {
global decimal
global hex
global gdb_prompt
global srcfile
if { ! [runto break1] } {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 1 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #1"] {
gdb_suppress_tests;
}
# Note that we check for s1 as either 1 or -1, so that failure to
# treat it correctly as a signed 1bit field (values 0 or -1) while
# printing its value does not cause a spurious failure. We do the
# signedness preservation test later.
if [gdb_test "print flags" ".*uc = 0 .*, s1 = (1|-1), u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s1)"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #2"] {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u1)"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #3"] {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s2)"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #4"] {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 1, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u2)"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #5"] {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 1, u3 = 0, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (s3)"] {
gdb_suppress_tests;
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #6"] {
gdb_suppress_tests;
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 1, s9 = 0, u9 = 0, sc = 0.*" "bitfield uniqueness (u3)"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #7"] {
gdb_suppress_tests
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 1, u9 = 0, sc = 0.*" "bitfield uniqueness (s9)"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #8"] {
gdb_suppress_tests
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 1, sc = 0.*" "bitfield uniqueness (u9)"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break1 \\(\\) at .*$srcfile:$decimal.*" "continuing to break1 #9"] {
gdb_suppress_tests
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 0, s9 = 0, u9 = 0, sc = 1.*" "bitfield uniqueness (sc)"] {
gdb_suppress_tests
}
# Hmmmm?
gdb_stop_suppressing_tests;
}
#
# Test bitfield containment.
# Fill alternating fields with all 1's and verify that none of the bits
# "bleed over" to the other fields.
#
proc bitfield_containment {} {
global decimal
global hex
global gdb_prompt
global srcfile
delete_breakpoints
if { ![runto break2] } {
gdb_suppress_tests
}
if [gdb_test "print/x flags" "= {uc = 0xff, s1 = 0x0, u1 = 0x1, s2 = 0x0, u2 = 0x3, s3 = 0x0, u3 = 0x7, s9 = 0x0, u9 = 0x1ff, sc = 0x0}" "bitfield containment #1"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break2 \\(\\) at .*$srcfile:$decimal.*" "continuing to break2"] {
gdb_suppress_tests
}
# If program is compiled with Sun CC, then these print out as their
# actual sizes; if compiled with gcc, they print out as 0xffffffff
# (which strikes me as bogus, but accept it at least for now).
if [gdb_test "print/x flags" "= {uc = 0x0, s1 = 0x(1|f*), u1 = 0x0, s2 = 0x(3|f*), u2 = 0x0, s3 = 0x(7|f*), u3 = 0x0, s9 = 0x(1ff|f*), u9 = 0x0, sc = 0xff}" "bitfield containment #2"] {
gdb_suppress_tests
}
gdb_stop_suppressing_tests;
}
# Test unsigned bitfields for unsignedness and range.
# Fill the unsigned fields with the maximum positive value and verify that
# the values are printed correctly.
proc bitfield_unsignedness {} {
global decimal
global hex
global gdb_prompt
global srcfile
delete_breakpoints
if { ![runto break3] } {
gdb_suppress_tests
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = 0, u1 = 1, s2 = 0, u2 = 3, s3 = 0, u3 = 7, s9 = 0, u9 = 511, sc = 0.*" "unsigned bitfield ranges"] {
gdb_suppress_tests
}
gdb_stop_suppressing_tests;
}
#
# Test signed bitfields for signedness and range.
# Fill the signed fields with the maximum positive value, then the maximally
# negative value, then -1, and verify in each case that the values are
# printed correctly.
#
proc bitfield_signedness {} {
global decimal
global hex
global gdb_prompt
global srcfile
delete_breakpoints
if { ! [runto break4] } {
gdb_suppress_tests
}
if [gdb_test "print flags" "= {uc = 0 .*, s1 = 0, u1 = 0, s2 = 1, u2 = 0, s3 = 3, u3 = 0, s9 = 255, u9 = 0, sc = 0 .*}" "signed bitfields, max positive values"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #1"] {
gdb_suppress_tests
}
# Determine if the target has signed bitfields so we can xfail the
# the signed bitfield tests if it doesn't.
gdb_test_multiple "print i" "determining signed-ness of bitfields" {
-re ".* = -256.*$gdb_prompt $" {
pass "determining signed-ness of bitfields"
}
-re ".* = 256.*$gdb_prompt $" {
pass "determining signed-ness of bitfields"
setup_xfail "*-*-*"
}
-re ".*$gdb_prompt $" {
fail "determining signed-ness of bitfields"
gdb_suppress_tests
}
default {
fail "determining signed-ness of bitfields" ;
gdb_suppress_tests;
}
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -2, u2 = 0, s3 = -4, u3 = 0, s9 = -256, u9 = 0, sc = 0.*" "signed bitfields, max negative values"] {
gdb_suppress_tests
}
if [gdb_test "cont" "Break.*break4 \\(\\) at .*$srcfile:$decimal.*" "continuing to break4 #2"] {
gdb_suppress_tests
}
if [gdb_test "print flags" ".*uc = 0 .*, s1 = -1, u1 = 0, s2 = -1, u2 = 0, s3 = -1, u3 = 0, s9 = -1, u9 = 0, sc = 0.*" "signed bitfields with -1"] {
gdb_suppress_tests
}
# Hmmmm???
gdb_stop_suppressing_tests;
}
# Test bitfields at non-zero offsets in a struct.
proc bitfield_at_offset {} {
global decimal
global hex
global gdb_prompt
global srcfile
gdb_breakpoint break5
if [gdb_test "cont" "Break.*break5 \\(\\) at .*$srcfile:$decimal.*" "continuing to break5"] {
return
}
set one ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 5, s9 = 0, u9 = 0, sc = 0.*"
set two ".*uc = 0 .*, s1 = 0, u1 = 0, s2 = 0, u2 = 0, s3 = 0, u3 = 3, s9 = 0, u9 = 0, sc = 0.*"
gdb_test "print container" "$one$two" "distinct bitfields in container"
gdb_test "print container.one.u3" ".* = 5"
gdb_test "print container.two.u3" ".* = 3"
}
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
gdb_test_no_output "set print sevenbit-strings"
bitfield_uniqueness
bitfield_containment
bitfield_unsignedness
bitfield_signedness
bitfield_at_offset
|
