kernel/linux.git/tools/testing/selftests/arm64, branch v6.18.21

selftest/arm64: Fix sve2p1_sigill() to hwcap test

2026-03-12T11:10:02+00:00

[ Upstream commit d87c828daa7ead9763416f75cc416496969cf1dc ] The FEAT_SVE2p1 is indicated by ID_AA64ZFR0_EL1.SVEver. However, the BFADD requires the FEAT_SVE_B16B16, which is indicated by ID_AA64ZFR0_EL1.B16B16. This could cause the test to incorrectly fail on a CPU that supports FEAT_SVE2.1 but not FEAT_SVE_B16B16. LD1Q Gather load quadwords which is decoded from SVE encodings and implied by FEAT_SVE2p1. Fixes: c5195b027d29 ("kselftest/arm64: Add SVE 2.1 to hwcap test") Signed-off-by: Yifan Wu Reviewed-by: Mark Brown Signed-off-by: Will Deacon Signed-off-by: Sasha Levin

Merge tag 'nolibc-20250928-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc

2025-10-01T02:18:17+00:00

Pull nolibc updates from Thomas Weißschuh: "Only small bugfixes and cleanups" * tag 'nolibc-20250928-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: tools/nolibc: add stdbool.h to nolibc includes tools/nolibc: make time_t robust if __kernel_old_time_t is missing in host headers selftests/nolibc: remove outdated comment about construct order selftests/nolibc: fix EXPECT_NZ macro tools/nolibc: drop wait4() support kselftest/arm64: tpidr2: Switch to waitpid() over wait4() tools/nolibc: fold llseek fallback into lseek() tools/nolibc: remove __nolibc_enosys() fallback from fork functions tools/nolibc: remove __nolibc_enosys() fallback from dup2() tools/nolibc: remove __nolibc_enosys() fallback from *at() functions tools/nolibc: remove __nolibc_enosys() fallback from time64-related functions tools/nolibc: use tabs instead of spaces for indentation tools/nolibc: avoid error in dup2() if old fd equals new fd selftests/nolibc: always compile the kernel with GCC selftests/nolibc: don't pass CC to toplevel Makefile selftests/nolibc: deduplicate invocations of toplevel Makefile selftests/nolibc: be more specific about variables affecting nolibc-test tools/nolibc: fix error return value of clock_nanosleep()

Merge branch 'for-next/selftests' into for-next/core

2025-09-24T15:34:56+00:00

* for-next/selftests: kselftest/arm64: Add lsfe to the hwcaps test kselftest/arm64: Check that unsupported regsets fail in sve-ptrace kselftest/arm64: Verify that we reject out of bounds VLs in sve-ptrace kselftest/arm64/gcs/basic-gcs: Respect parent directory CFLAGS selftests/arm64: Fix grammatical error in string literals kselftest/arm64: Add parentheses around sizeof for clarity kselftest/arm64: Supress warning and improve readability kselftest/arm64: Remove extra blank line kselftest/arm64/gcs: Use nolibc's getauxval() kselftest/arm64/gcs: Correctly check return value when disabling GCS selftests: arm64: Fix -Waddress warning in tpidr2 test kselftest/arm64: Log error codes in sve-ptrace selftests: arm64: Check fread return value in exec_target

kselftest/arm64: Add lsfe to the hwcaps test

2025-09-19T11:50:17+00:00

This feature has no traps associated with it so the SIGILL is not reliable. Signed-off-by: Mark Brown Signed-off-by: Will Deacon

kselftest/arm64: Check that unsupported regsets fail in sve-ptrace

2025-09-18T11:53:38+00:00

Add a test which verifies that NT_ARM_SVE and NT_ARM_SSVE reads and writes are rejected as expected when the relevant architecture feature is not supported. Signed-off-by: Mark Brown Signed-off-by: Will Deacon

kselftest/arm64: Verify that we reject out of bounds VLs in sve-ptrace

2025-09-18T11:53:38+00:00

We do not currently have a test that asserts that we reject attempts to set a vector length smaller than SVE_VL_MIN or larger than SVE_VL_MAX, add one since that is our current behaviour. Signed-off-by: Mark Brown Signed-off-by: Will Deacon

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: Add parentheses around sizeof for clarity

2025-09-08T15:01:22+00:00

Added parentheses around sizeof to make the expression clearer and improve readability. This change has no functional impact. ``` [command] ./scripts/checkpatch.pl tools/testing/selftests/arm64/fp/sve-ptrace.c [output] WARNING: sizeof *sve should be sizeof(*sve) ``` Signed-off-by: Vivek Yadav Signed-off-by: Will Deacon

kselftest/arm64: Supress warning and improve readability

2025-09-08T15:01:22+00:00

The comment was correct, but `checkpatch` script flagged it with a warning as shown in the output section. The comment is slightly modified to improve readability, which also suppresses the warning. ``` [command] ./script/checkpatch.pl --strict -f tools/testing/selftests/arm64/fp/fp-stress.c [output] WARNING: Possible repeated word: 'on' ``` Signed-off-by: Vivek Yadav Signed-off-by: Will Deacon