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selftests/exec: report the skipped binfmt_misc_bpf test on stderr

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The exec Makefile announces that binfmt_misc_bpf is skipped with
$(info), which writes to standard output whenever the Makefile is
parsed. The selftests install target appends the standard output of
"make -s emit_tests" to kselftest-list.txt, so on systems without the
BPF toolchain the runlist gains a line that is not a test entry:

  exec selftests: skipping binfmt_misc_bpf, needs clang, bpftool, ...

run_kselftest.sh and CI systems that parse the runlist then treat it as
a malformed test entry.

Use $(warning) so that the notice still appears in build logs but goes
to standard error.

Fixes: 277d787feb ("selftests/exec: add binfmt_misc bpf-backed handler test")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Link: https://patch.msgid.link/20261014200135.1364053-1-sashal@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Sasha Levin 2026-10-14 16:01:35 -04:00 committed by Kees Cook
parent df2908090c
commit b36b990c50
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/exec/Makefile
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@ -63,7 +63,7 @@ TEST_GEN_FILES += bpf_interp.bpf.o nix_origin.bpf.o transparent.bpf.o
TEST_GEN_FILES += loader.bpf.o interp_bind.bpf.o
TEST_GEN_FILES += binfmt_bpf_interp binfmt_bpf_app binfmt_bind_interp
else
$(info exec selftests: skipping binfmt_misc_bpf, needs clang, bpftool, vmlinux BTF and libbpf)
$(warning exec selftests: skipping binfmt_misc_bpf, needs clang, bpftool, vmlinux BTF and libbpf)
endif
EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx* \