# Copyright 1992, 1994, 1995, 1997, 2004 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# This file was adapted from bitfields.exp by Paul Hilfinger
# (Hilfinger@gnat.com)
#
# Tests for bit-fields that do not fit in type (unsigned) int, but do fit
# in type (unsigned) long long. We perform essentially the same tests as
# in bitfields.c, which considers only bit-fields that are <= 9 bits long.
#
if $tracelevel then {
strace $tracelevel
}
set prms_id 0
set bug_id 0
set testfile "bitfields2"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
set has_signed_bitfields 1
#
# Continue to expected breakpoint at FUNCTION. Append TAG to make pass/fail
# messages (to make them unique). Suppress tests on failure.
#
proc continue_test { function tag } {
global decimal
global srcfile
if [gdb_test "cont" "Break.*$function \\(\\) at .*$srcfile:$decimal.*" "continuing to $function $tag"] {
gdb_suppress_tests
}
}
#
# Start next test by running to tester and then to FUNCTION. Suppresses
# tests on failure.
#
proc start_test { function } {
delete_breakpoints
if [gdb_test "break tester" "" "break tester prior to $function"] {
gdb_suppress_tests
}
continue_test "tester" "prior to $function"
if ![gdb_breakpoint $function] {
gdb_suppress_tests
}
continue_test $function "#0"
}
#
# 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
start_test break1
if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 1, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.s1 = 1"] {
gdb_suppress_tests;
}
continue_test break1 "#1"
if [gdb_test "print flags" ".*u1 = 1, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u1 = 1"] {
gdb_suppress_tests;
}
continue_test break1 "#2"
if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 1, s3 = 0.*" "bitfield uniqueness; flags.s2 = 1"] {
gdb_suppress_tests;
}
continue_test break1 "#3"
if [gdb_test "print flags" ".*u1 = 0, u2 = 1, u3 = 0, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u2 = 1"] {
gdb_suppress_tests;
}
continue_test break1 "#4"
if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 0, s1 = 0, s2 = 0, s3 = 1.*" "bitfield uniqueness; flags.s3 = 1"] {
gdb_suppress_tests;
}
continue_test break1 "#5"
if [gdb_test "print flags" ".*u1 = 0, u2 = 0, u3 = 1, s1 = 0, s2 = 0, s3 = 0.*" "bitfield uniqueness; flags.u3 = 1"] {
gdb_suppress_tests
}
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
start_test break2
# If program is compiled with Sun CC, signed fields print out as their
# actual sizes; if compiled with gcc, they print out as 0xffffffff.
if [gdb_test "print/x flags" "= {u1 = 0x7fff, u2 = 0x0, u3 = 0xffff, s1 = 0x0, s2 = 0x(1ffffffff|f*), s3 = 0x0}" "bitfield containment; flags.u1, flags.u3, and flags.s3 to all 1s"] {
gdb_suppress_tests
}
continue_test break2 "#1"
if [gdb_test "print/x flags" "= {u1 = 0x0, u2 = 0x1ffffffff, u3 = 0x0, s1 = 0x(7fff|f*), s2 = 0x0, s3 = 0xf*}" "bitfield containment; flags.u2, flags.s1, flags.s2 to all 1s"] {
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
start_test break3
if [gdb_test "print flags" ".*u1 = 32767, u2 = 8589934591, u3 = 65535, s1 = 0, s2 = 0, s3 = 0.*" "maximum unsigned bitfield values"] {
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
global has_signed_bitfields
start_test break4
if [gdb_test "print flags" "= {.*u1 = 0, u2 = 0, u3 = 0, s1 = 16383, s2 = 4294967295, s3 = 32767.*}" "maximum signed bitfield values"] {
gdb_suppress_tests
}
continue_test break4 "#1"
# Determine if the target has signed bitfields so we can skip
# the signed bitfield tests if it doesn't.
set test "determining signed-ness of bitfields"
set has_signed_bitfields 0
gdb_test_multiple "print i" $test {
-re ".* = -32768.*$gdb_prompt $" {
set has_signed_bitfields 1
pass "determining signed-ness of bitfields"
}
-re ".* = 32768.*$gdb_prompt $" {
pass "determining signed-ness of bitfields"
}
-re ".*$gdb_prompt $" {
fail "determining signed-ness of bitfields"
gdb_suppress_tests
}
}
set test "most negative signed bitfield values"
if $has_signed_bitfields then {
if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -16384, s2 = -4294967296, s3 = -32768.*" $test ] {
gdb_suppress_tests
}
} else {
unsupported $test
}
continue_test break4 "#2"
set test "signed bitfields containing -1"
if $has_signed_bitfields then {
if [gdb_test "print flags" "u1 = 0, u2 = 0, u3 = 0, s1 = -1, s2 = -1, s3 = -1.*" $test ] {
gdb_suppress_tests
}
} else {
unsupported $test
}
gdb_stop_suppressing_tests;
}
# Test setting of long long bit fields from within GDB.
proc bitfield_set {} {
global decimal
global hex
global gdb_prompt
global srcfile
global has_signed_bitfields
start_test break5
set big_set_failed 0
set test "set long long unsigned bitfield"
gdb_test_multiple "print flags.u2 = 0x100000000" $test {
-re "warning: Value does not fit.*$gdb_prompt $" {
fail "$test"
gdb_suppress_tests
}
-re "= 4294967296.*$gdb_prompt $" {
pass "$test"
}
}
set test "set long long signed bitfield positive"
gdb_test_multiple "print flags.s2 = 0x80000000" $test {
-re "warning: Value does not fit.*$gdb_prompt $" {
fail "$test"
gdb_suppress_tests
}
-re "= 2147483648.*$gdb_prompt $" {
pass "$test"
}
}
if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = 2147483648, s3 = 0.*" "long long bitfield values after set"] {
gdb_suppress_tests
}
set test "set long long signed bitfield negative"
if $has_signed_bitfields then {
gdb_test_multiple "print flags.s2 = -1" $test {
-re "warning: Value does not fit.*$gdb_prompt $" {
fail "$test"
gdb_suppress_tests
}
-re "= -1.*$gdb_prompt $" {
pass "$test"
}
}
} else {
unsupported $test
}
set test "long long bitfield values after set negative"
if $has_signed_bitfields then {
if [gdb_test "print flags" "u1 = 0, u2 = 4294967296, u3 = 0, s1 = 0, s2 = -1, s3 = 0.*" $test] {
gdb_suppress_tests
}
} else {
unsupported $test
}
gdb_stop_suppressing_tests;
}
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
send_gdb "set print sevenbit-strings\n" ; gdb_expect -re "$gdb_prompt $"
runto_main
bitfield_uniqueness
bitfield_containment
bitfield_unsignedness
bitfield_signedness
bitfield_set