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Subject[PATCH 00/12] selftests: Miscellaneous fixes
Date
	Hi all,

This patch series contains several build fixes and cleanups for issues I
encountered when trying to cross-build an rtctest binary in a separate
output directory (like I use for all my kernel builds).

Most patches are independent. Exceptions are:
- Patch 3 depends on patch 2,
- Patch 7 depends on patch 6,
- Patch 11 depends on patches 2 and 3,

This has been tested with native (amd64):
- make kselftest-build
- make -C tools/testing/selftests
- make O=/tmp/kselftest kselftest-build
- make O=/tmp/kselftest -C tools/testing/selftests
and cross-builds (arm):
- make kselftest-build (from a separate output directory).

Known remaining issues (not introduced by this patch series):
- tools/lib/bpf fails to build in some cases (cfr.
https://lore.kernel.org/lkml/CAMuHMdXRN=mSKTjZNBSxQi-pkgSrKqeANxD-GB+hqC8pDjx7nQ@mail.gmail.com/),
- tools/gpio is not always built correctly,
- When building in a separate output directory, there are still files
created in the source directory under:
- arch/x86/include/generated/,
- arch/x86/tools/,
- include/generated/uapi/linux,
- scripts (fixdep and unifdef),
- Some tests may fail to find the installed header files,
- There may be^H^H^H^H^H^Hare more.

Thanks for your comments!

Geert Uytterhoeven (12):
selftests: gpio-mockup-chardev: Check asprintf() for error
selftests: Fix output directory with O=
selftests: Fix header install directory with O=
selftests: android: ion: Fix ionmap_test dependencies
selftests: seccomp: Fix test dependencies and rules
selftests: lib.mk: Add rule to build object file from C source file
selftests: memfd: Fix build with O=
selftests: timestamping: Remove superfluous rules
selftests: sparc64: Remove superfluous rules
selftests: intel_pstate: Remove unused header dependency rule
selftests: Add kselftest-build target
[RFC] selftests: gpio: Fix building tools/gpio from kselftests

Documentation/dev-tools/kselftest.rst | 4 ++++
Makefile | 9 +++++++--
tools/testing/selftests/android/ion/Makefile | 6 +-----
tools/testing/selftests/gpio/Makefile | 12 +++++++-----
.../testing/selftests/gpio/gpio-mockup-chardev.c | 9 ++++++---
tools/testing/selftests/intel_pstate/Makefile | 2 --
tools/testing/selftests/lib.mk | 4 ++++
tools/testing/selftests/memfd/Makefile | 8 +++-----
.../selftests/networking/timestamping/Makefile | 5 -----
tools/testing/selftests/seccomp/Makefile | 15 +++------------
tools/testing/selftests/sparc64/drivers/Makefile | 4 ----
11 files changed, 35 insertions(+), 43 deletions(-)

--
2.17.1

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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