linux-kernel - [PATCH 4/8] kbuild: turn '/' into an alias of './'

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Message-Id: <1550113521-23577-4-git-send-email-yamada.masahiro@socionext.com>
Date:   Thu, 14 Feb 2019 12:05:17 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonathan Corbet <corbet@....net>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: [PATCH 4/8] kbuild: turn '/' into an alias of './'

Commit 06300b21f4c7 ("kbuild: support building individual files for
external modules") introduced the '/' target. It works only for
external modules to build all .o files, but skip the modpost stage.

However, 'make /' looks a bit weird to me. 'make ./' is more sensible
if you want to build all objects under the current directory, and it
works as expected.

Let's change '/' into a phony target that is an alias of './', but
I may feel like deprecating it in the future.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 Documentation/kbuild/modules.txt | 2 +-
 Makefile                         | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/kbuild/modules.txt b/Documentation/kbuild/modules.txt
index 3fb39e0..80295c6 100644
--- a/Documentation/kbuild/modules.txt
+++ b/Documentation/kbuild/modules.txt
@@ -140,7 +140,7 @@ executed to make module versioning work.
 		make -C $KDIR M=$PWD bar.lst
 		make -C $KDIR M=$PWD baz.o
 		make -C $KDIR M=$PWD foo.ko
-		make -C $KDIR M=$PWD /
+		make -C $KDIR M=$PWD ./
 
 
 === 3. Creating a Kbuild File for an External Module
diff --git a/Makefile b/Makefile
index fe62de3..3956e93 100644
--- a/Makefile
+++ b/Makefile
@@ -1709,8 +1709,9 @@ endif
 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
 
 # Modules
-/: prepare FORCE
-	$(Q)$(MAKE) KBUILD_MODULES=1 $(build)=$(build-dir)
+PHONY += /
+/: ./
+
 # Make sure the latest headers are built for Documentation
 Documentation/ samples/: headers_install
 %/: prepare FORCE
-- 
2.7.4