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tests/tcg/aarch64: Extend MTE gdbstub tests to system mode

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Extend MTE gdbstub tests to also run in system mode (share tests between
user mode and system mode). The tests will only run if a version of GDB
that supports MTE on baremetal is available in the test environment and
if available compiler supports the 'memtag' flag
(-march=armv8.5-a+memtag).

For the tests running in system mode, a page that supports MTE ops. is
necessary. Therefore, an MTE-enabled page is made available (mapped) in
the third 2 MB chunk of the second 1 GB space in the flat mapping set in
boot.S. A new binary, mte.S, is also introduced for the tests. It links
against boot.S and is executed by QEMU in system mode.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Message-Id: <20240906143316.657436-6-gustavo.romero@linaro.org>
[AJB: fix stray _]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240910173900.4154726-11-alex.bennee@linaro.org>
This commit is contained in:
Gustavo Romero
2024-09-10 18:39:00 +01:00
committed by Alex Bennée
parent f0ef6c35ac
commit 06dd94e843
7 changed files with 229 additions and 28 deletions
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5
configure vendored
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@@ -1679,6 +1679,11 @@ for target in $target_list; do
echo "GDB_HAS_MTE=y" >> $config_target_mak
fi
if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 16.0; then
# GDB has to support MTE in baremetal to allow debugging MTE in QEMU system mode
echo "GDB_SUPPORTS_MTE_IN_BAREMETAL=y" >> $config_target_mak
fi
echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
tcg_tests_targets="$tcg_tests_targets $target"
fi