linux-kernel - [PATCH 4/4] Makefile: add headers

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Message-Id: <4d34d06baf945dc31c78f873771cef3a75b60067.1657296695.git.guillaume.tucker@collabora.com>
Date:   Fri,  8 Jul 2022 17:23:30 +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:     kernel@...labora.com, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH 4/4] Makefile: add headers_install to kselftest targets

Add headers_install 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_install
  $ make O=build -C tools/testing/selftest 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>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 1a6678d817bd..afc9d739ba44 100644
--- a/Makefile
+++ b/Makefile
@@ -1347,10 +1347,10 @@ tools/%: FORCE
 # Kernel selftest
 
 PHONY += kselftest
-kselftest:
+kselftest: headers_install
 	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
 
-kselftest-%: FORCE
+kselftest-%: headers_install FORCE
 	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $*
 
 PHONY += kselftest-merge
-- 
2.30.2