linux-kernel - [PATCH v2 4/4] Makefile: add headers to kselftest targets

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Date:   Tue, 12 Jul 2022 09:29:48 +0100
From:   Guillaume Tucker <guillaume.tucker@...labora.com>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Shuah Khan <shuah@...nel.org>,
        Kees Cook <keescook@...omium.org>
Cc:     Anders Roxell <anders.roxell@...aro.org>, Tim.Bird@...y.com,
        kernel@...labora.com, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v2 4/4] Makefile: add headers to kselftest targets

Add headers as a dependency to kselftest targets so that they can be
run directly from the top of the tree.  The kselftest Makefile used to
try to call headers_install "backwards" but failed due to the relative
path not being consistent.

Now we can either run this directly:

  $ make O=build kselftest-all

or this:

  $ make O=build headers
  $ make O=build -C tools/testing/selftests all

The same commands work as well when building directly in the source
tree (no O=) or any arbitrary path (relative or absolute).

Signed-off-by: Guillaume Tucker <guillaume.tucker@...labora.com>
---

Notes:
    v2: replace headers_install with headers

 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 1a6678d817bd..02502cc4ced5 100644
--- a/Makefile
+++ b/Makefile
@@ -1347,10 +1347,10 @@ tools/%: FORCE
 # Kernel selftest
 
 PHONY += kselftest
-kselftest:
+kselftest: headers
 	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
 
-kselftest-%: FORCE
+kselftest-%: headers FORCE
 	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $*
 
 PHONY += kselftest-merge
-- 
2.30.2