kernel/linux.git/tools/testing/selftests/arm64/gcs, branch linux-7.0.y

kselftest/arm64: Include for user_gcs definition

2026-05-23T11:09:36+00:00

[ Upstream commit bb7235e226888607e6aac1288062fcb1ac105589 ] kselftest includes kernel uAPI headers with option: -isystem $(top_srcdir)/usr/include Include in libc-gcs.c for the definition of struct user_gcs from the uAPI headers, and remove the redundant definition in gcs-util.h. This fixes a compilation error on systems where the toolchain defines NT_ARM_GCS. Fixes: a505a52b4e29 ("kselftest/arm64: Add a GCS test program built with the system libc") Signed-off-by: Leo Yan Reviewed-by: Mark Brown Signed-off-by: Catalin Marinas Signed-off-by: Sasha Levin

kselftest/arm64: Use syscall() macro over nolibc my_syscall()

2026-01-22T11:21:09+00:00

The my_syscall*() macros are internal implementation details of nolibc. Nolibc also provides the regular syscall(2), which is also a macro and directly expands to the correct my_syscall(). Use syscall() instead. As a side-effect this fixes some return value checks, as my_syscall() returns the raw value as set by the kernel and does not set errno. Signed-off-by: Thomas Weißschuh Acked-by: Mark Brown Signed-off-by: Will Deacon

selftests: complete kselftest include centralization

2025-11-27T22:24:31+00:00

This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy Suggested-by: Andrew Morton Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang Cc: David Hildenbrand Cc: David S. Miller Cc: Eric Dumazet Cc: Günther Noack Cc: Jakub Kacinski Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mickael Salaun Cc: Ming Lei Cc: Paolo Abeni Cc: Shuah Khan Cc: Simon Horman Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton

kselftest/arm64/gcs/basic-gcs: Respect parent directory CFLAGS

2025-09-17T15:32:02+00:00

basic-gcs has it's own make rule to handle the special compiler invocation to build against nolibc. This rule does not respect the $(CFLAGS) passed by the Makefile from the parent directory. However these $(CFLAGS) set up the include path to include the UAPI headers from the current kernel. Due to this the asm/hwcap.h header is used from the toolchain instead of the UAPI and the definition of HWCAP_GCS is not found. Restructure the rule for basic-gcs to respect the $(CFLAGS). Also drop those options which are already provided by $(CFLAGS). Reported-by: Naresh Kamboju Closes: https://lore.kernel.org/lkml/CA+G9fYv77X+kKz2YT6xw7=9UrrotTbQ6fgNac7oohOg8BgGvtw@mail.gmail.com/ Fixes: a985fe638344 ("kselftest/arm64/gcs: Use nolibc's getauxval()") Tested-by: Linux Kernel Functional Testing Signed-off-by: Thomas Weißschuh Reviewed-by: Mark Brown Signed-off-by: Will Deacon

selftests/arm64: Fix grammatical error in string literals

2025-09-08T15:17:13+00:00

Fix grammatical error in + construct related to memory allocation checks. In essence change "Failed to allocated" to "Failed to allocate". Signed-off-by: Nikola Z. Ivanov Reviewed-by: Mark Brown Reviewed-by: Bagas Sanjaya Signed-off-by: Will Deacon

kselftest/arm64: Remove extra blank line

2025-09-08T15:01:21+00:00

Remove an unnecessary blank line to improve code style consistency. ``` [command] ./scripts/checkpatch.pl --strict -f [output] CHECK: Please don't use multiple blank lines CHECK: Blank lines aren't necessary before a close brace '}' ``` Signed-off-by: Vivek Yadav Signed-off-by: Will Deacon

kselftest/arm64/gcs: Use nolibc's getauxval()

2025-09-08T14:54:39+00:00

Nolibc now does have getauxval(), use it. Signed-off-by: Thomas Weißschuh Reviewed-by: Mark Brown Signed-off-by: Will Deacon

kselftest/arm64/gcs: Correctly check return value when disabling GCS

2025-09-08T14:54:39+00:00

The return value was not assigned to 'ret', so the check afterwards does not do anything. Fixes: 3d37d4307e0f ("kselftest/arm64: Add very basic GCS test program") Signed-off-by: Thomas Weißschuh Reviewed-by: Mark Brown Signed-off-by: Will Deacon

kselftest/arm64: Add a test for vfork() with GCS

2025-07-04T11:26:14+00:00

Ensure that we've got at least some coverage of the special cases around vfork() by adding a test case in basic-gcs doing the same thing as the plain fork() one - vfork(), do a few checks and then return to the parent. Signed-off-by: Mark Brown Reviewed-by: Catalin Marinas Link: https://lore.kernel.org/r/20250703-arm64-gcs-vfork-exit-v3-3-1e9a9d2ddbbe@kernel.org Signed-off-by: Thomas Weißschuh

kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c

2024-11-12T14:39:30+00:00

Compiling the child_cleanup() function results in: gcs-stress.c: In function ‘child_cleanup’: gcs-stress.c:266:75: warning: format ‘%d’ expects a matching ‘int’ argument [-Wformat=] 266 | ksft_print_msg("%s: Exited due to signal %d\n", | ~^ | | | int Add the missing child->exit_signal argument. Fixes: 05e6cfff58c4 ("kselftest/arm64: Add a GCS stress test") Signed-off-by: Catalin Marinas