Changes in Makefile

48f8d9ce - kselftest/arm64: Validate that GCS push and write permissions work

Sat, 05 Oct 2024 00:17:18 +0000

kselftest/arm64: Validate that GCS push and write permissions workAdd trivial assembly programs which give themselves the appropriatepermissions and then execute GCSPUSHM and GCSSTR, they will report errorsby generating signals on the non-permitted instructions. Not using libcminimises the interaction with any policy set for the system but we skip onfailure to get the permissions in case the system is locked down to makethem inaccessible.Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20241005-arm64-gcs-test-flags-v1-1-03cb9786c5cd@kernel.orgSigned-off-by: Catalin Marinas List of files: /linux-6.15/tools/testing/selftests/arm64/gcs/Makefile

05e6cfff - kselftest/arm64: Add a GCS stress test

Tue, 01 Oct 2024 22:59:17 +0000

kselftest/arm64: Add a GCS stress testAdd a stress test which runs one more process than we have CPUs spinningthrough a very recursive function with frequent syscalls immediately priorto return and signals being injected every 100ms. The goal is to flag upany scheduling related issues, for example failure to ensure that barriersare inserted when moving a GCS using task to another CPU. The test runs fora configurable amount of time, defaulting to 10 seconds.Reviewed-by: Thiago Jung Bauermann Tested-by: Thiago Jung Bauermann Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-38-222b78d87eee@kernel.orgSigned-off-by: Catalin Marinas List of files: /linux-6.15/tools/testing/selftests/arm64/gcs/Makefile

58d69a3e - kselftest/arm64: Add test coverage for GCS mode locking

Tue, 01 Oct 2024 22:59:15 +0000

kselftest/arm64: Add test coverage for GCS mode lockingVerify that we can lock individual GCS mode bits, that other modesaren't affected and as a side effect also that every combination ofmodes can be enabled.Normally the inability to reenable GCS after disabling it would be anissue with testing but fortunately the kselftest_harness runs each testwithin a fork()ed child. This can be inconvenient for some kinds oftesting but here it means that each test is in a separate thread andtherefore won't be affected by other tests in the suite.Once we get toolchains with support for enabling GCS by default we willneed to take care to not do that in the build system but there are nosuch toolchains yet so it is not yet an issue.Reviewed-by: Thiago Jung Bauermann Tested-by: Thiago Jung Bauermann Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-36-222b78d87eee@kernel.orgSigned-off-by: Catalin Marinas List of files: /linux-6.15/tools/testing/selftests/arm64/gcs/Makefile

a505a52b - kselftest/arm64: Add a GCS test program built with the system libc

Tue, 01 Oct 2024 22:59:14 +0000

kselftest/arm64: Add a GCS test program built with the system libcThere are things like threads which nolibc struggles with which we wantto add coverage for, and the ABI allows us to test most of these even iflibc itself does not understand GCS so add a test application builtusing the system libc.Reviewed-by: Thiago Jung Bauermann Tested-by: Thiago Jung Bauermann Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-35-222b78d87eee@kernel.orgSigned-off-by: Catalin Marinas List of files: /linux-6.15/tools/testing/selftests/arm64/gcs/Makefile

3d37d430 - kselftest/arm64: Add very basic GCS test program

Tue, 01 Oct 2024 22:59:13 +0000

kselftest/arm64: Add very basic GCS test programThis test program just covers the basic GCS ABI, covering aspects of theABI as standalone features without attempting to integrate things.Reviewed-by: Thiago Jung Bauermann Tested-by: Thiago Jung Bauermann Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-34-222b78d87eee@kernel.orgSigned-off-by: Catalin Marinas List of files: /linux-6.15/tools/testing/selftests/arm64/gcs/Makefile