[PATCH RESEND 0/3] selftests: target selection fixes for cross and LLVM builds

From: Sasha Levin

Date: Thu Nov 05 2026 - 08:08:03 EST


A few suites select their tests from the build host instead of the
target, or depend on the host C library in ways that break cross
builds:

- set-anon-vma-name-test fails instead of skipping on kernels built
without CONFIG_ANON_VMA_NAME.

- kexec only recognizes the ppc64le spelling of PowerPC and decides
about the x86-64 jump test from the build host.

- size links a custom _start against the static C library, which
fails on ARM with clang and on LoongArch; it now uses nolibc.

The patches are independent of each other and apply on
mm-nonmm-unstable.

Since the original posting:

- "selftests/prctl: build generated tests for the target architecture"
is dropped. "selftests/prctl: select the tests by ARCH alone" in
mm-nonmm-unstable replaces it.

- "selftests/thermal: allow cross builds of the Intel tests" is dropped,
it went in through the thermal tree as ff4194e54f84.

- The size patch has Thomas's Reviewed-by.

Original posting:
https://lore.kernel.org/r/20261014200127.1363472-1-sashal@xxxxxxxxxx

Sasha Levin (3):
selftests/prctl: skip the anonymous VMA naming test when unsupported
selftests/kexec: select tests using the target compiler
selftests/size: use nolibc startup and syscall wrappers

tools/testing/selftests/kexec/Makefile | 26 ++++++++-------
.../selftests/prctl/set-anon-vma-name-test.c | 3 ++
tools/testing/selftests/size/Makefile | 9 ++++-
tools/testing/selftests/size/get_size.c | 33 +++++--------------
4 files changed, 34 insertions(+), 37 deletions(-)


base-commit: 72afe7762a29508ae89831540347c1be3b7ba621
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2.53.0