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ee9812a001
Add a new command to flush the dcache. gdb/ChangeLog: * NEWS: Mention new commands. * target-dcache.c: Add 'cli/cli-cmds.h' include. (maint_flush_dcache_command): New function. (_initialize_target_dcache): Create new 'maint flush dcache' command. gdb/doc/ChangeLog: * gdb.texinfo (Caching Target Data): Document 'maint flush dcache'. gdb/testsuite/ChangeLog: * gdb.base/dcache-flush.c: New file. * gdb.base/dcache-flush.exp: New file.
65 lines
2.0 KiB
Plaintext
65 lines
2.0 KiB
Plaintext
# Copyright 2020 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 <http://www.gnu.org/licenses/>.
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# Test that the dcache can be flushed.
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standard_testfile
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if { [prepare_for_testing "failed to prepare" ${testfile}] } {
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return -1
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}
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if ![runto func] {
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return -1
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}
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gdb_test "up" ".* main .*"
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gdb_test "p var1" " = 4"
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gdb_test "p var2" " = 3"
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# By reading var1 and var2 we should have at least one line in the
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# dcache.
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gdb_test "info dcache" \
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[multi_line \
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"Dcache $decimal lines of $decimal bytes each." \
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"Contains data for process $decimal" \
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"Line 0: address $hex \[$decimal hits\].*" \
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"Cache state: $decimal active lines, $decimal hits" ] \
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"check dcache before flushing"
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# Flush the dcache.
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gdb_test "maint flush dcache" "The dcache was flushed\."
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# Check the dcache is now empty.
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gdb_test "info dcache" \
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[multi_line "Dcache $decimal lines of $decimal bytes each." \
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"No data cache available." ] \
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"check dcache after flushing"
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# Read the stack variables again, refilling the dcache.
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with_test_prefix "refilling" {
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gdb_test "p var1" " = 4"
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gdb_test "p var2" " = 3"
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}
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# And check we have some content back in the dcache.
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gdb_test "info dcache" \
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[multi_line \
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"Dcache $decimal lines of $decimal bytes each." \
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"Contains data for process $decimal" \
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"Line 0: address $hex \[$decimal hits\].*" \
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"Cache state: $decimal active lines, $decimal hits" ] \
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"check dcache before refilling"
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