[PATCH 00/12] selftests: Miscellaneous fixes

[Geert Uytterhoeven]

	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@xxxxxxxxxxxxxx/),
  - 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@xxxxxxxxxxxxxx

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