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# Copyright 2002-2014 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/>.
# The doco makes reference to built-in registers -- $pc and $fp. If
# the ISA contains registers by that name then they should be
# displayed. If the ISA contains registers identified as being
# equivalent, but have different names, then GDB will provide these as
# aliases. If the ISA doesn't provide any equivalent registers, then
# GDB will provide registers that map onto the frame's PC and FP.
#
# test running programs
#
standard_testfile
if [get_compiler_info] {
return -1
}
if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug nowarnings}]} {
untested $testfile.exp
return -1
}
if ![runto_main] then {
perror "couldn't run to breakpoint"
continue
}
# Get the value of PC and FP
set valueof_pc [get_hexadecimal_valueof "\$pc" "0"]
set valueof_fp [get_hexadecimal_valueof "\$fp" "0"]
# Check that the sequence $REGNAME -> REGNUM -> $REGNAME works. Use
# display since that encodes and then decodes the expression parameter
# (and hence uses the mechanisms we're trying to test).
gdb_test "display/i \$pc" "1: x/i +\\\$pc( +|\r\n)=> ${valueof_pc}.*"
gdb_test "display/w \$fp" "2: x/xw +\\\$fp +${valueof_fp}.*"
gdb_test "info register \$pc" "${valueof_pc}.*"
gdb_test "info register \$fp" "${valueof_fp}.*"
# Regression test for
# http://sourceware.org/bugzilla/show_bug.cgi?id=12659
gdb_test "info register pc fp" \
"pc +${valueof_pc}\t${valueof_pc} <.*>\[\r\n\]+fp +${valueof_fp}\t${valueof_fp}\[\r\n\]+"
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