[PATCH 0/1] Add usercopy fixup accuracy tests

From: Oliver Swede
Date: Wed Sep 16 2020 - 16:00:44 EST

This adds a selftest subtarget that can be used to verify the
accuracy of the usercopy fixup routines.

The patch contains a test module that integrates with the selftest
framework and can be specified as a subtarget for the arm64 selftest
target. It can be invoked through the same method as the other
subtargets, provided that test_usercopy_fixup is installed prior to the
run. This enables debugging of modifications made to the usercopy fixup
routines, and/or provides a method of verification across system

Comments are welcome regarding the suitability of this location for these
tests, and any other suggestions would also be greatly appreciated.

This was used in conjunction with lib/test_user_copy.c to help verify
the following usercopy fixup patches:

Thanks in advance,

Oliver Swede (1):
kselftest: arm64: Add usercopy fixup accuracy tests

arch/arm64/Kconfig.debug | 7 +
arch/arm64/lib/Makefile | 2 +
arch/arm64/lib/test_usercopy_fixup.c | 276 ++++++++++++++++++
tools/testing/selftests/arm64/Makefile | 2 +-
tools/testing/selftests/arm64/README | 2 +-
.../testing/selftests/arm64/usercopy/Makefile | 3 +
tools/testing/selftests/arm64/usercopy/config | 1 +
.../arm64/usercopy/run_fixup_tests.sh | 4 +
8 files changed, 295 insertions(+), 2 deletions(-)
create mode 100644 arch/arm64/lib/test_usercopy_fixup.c
create mode 100644 tools/testing/selftests/arm64/usercopy/Makefile
create mode 100644 tools/testing/selftests/arm64/usercopy/config
create mode 100755 tools/testing/selftests/arm64/usercopy/run_fixup_tests.sh