1# Copyright 2020-2023 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# Test that the dcache can be flushed. 17 18standard_testfile 19 20if { [prepare_for_testing "failed to prepare" ${testfile}] } { 21 return -1 22} 23 24if ![runto func] { 25 return -1 26} 27 28gdb_test "up" ".* main .*" 29gdb_test "p var1" " = 4" 30gdb_test "p var2" " = 3" 31 32# By reading var1 and var2 we should have at least one line in the 33# dcache. 34gdb_test "info dcache" \ 35 [multi_line \ 36 "Dcache $decimal lines of $decimal bytes each." \ 37 "Contains data for (process $decimal|Thread \[^\r\n\]*)" \ 38 "Line 0: address $hex \[$decimal hits\].*" \ 39 "Cache state: $decimal active lines, $decimal hits" ] \ 40 "check dcache before flushing" 41 42# Flush the dcache. 43gdb_test "maint flush dcache" "The dcache was flushed\." 44 45# Check the dcache is now empty. 46gdb_test "info dcache" \ 47 [multi_line "Dcache $decimal lines of $decimal bytes each." \ 48 "No data cache available." ] \ 49 "check dcache after flushing" 50 51# Read the stack variables again, refilling the dcache. 52with_test_prefix "refilling" { 53 gdb_test "p var1" " = 4" 54 gdb_test "p var2" " = 3" 55} 56 57# And check we have some content back in the dcache. 58gdb_test "info dcache" \ 59 [multi_line \ 60 "Dcache $decimal lines of $decimal bytes each." \ 61 "Contains data for (process $decimal|Thread \[^\r\n\]*)" \ 62 "Line 0: address $hex \[$decimal hits\].*" \ 63 "Cache state: $decimal active lines, $decimal hits" ] \ 64 "check dcache before refilling" 65