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Date: Thu, 29 Nov 2018 12:56:31 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-kbuild@...r.kernel.org
Cc: Kees Cook <keescook@...omium.org>, Emese Revfy <re.emese@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org,
        Michal Marek <michal.lkml@...kovi.net>
Subject: [PATCH v2 2/2] kbuild: descend into scripts/gcc-plugins/ via scripts/Makefile

Now that 'archprepare' depends on 'scripts', Kbuild can descend into
scripts/gcc-plugins in a more standard way.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
Reviewed-by: Kees Cook <keescook@...omium.org>
---

Changes in v2:
  - It turned out UML + CONFIG_GCC_PLUGINS is broken for a long time.
    https://patchwork.kernel.org/patch/10703853/
    Rebased on the top of the fix-up

 Makefile                     | 2 +-
 scripts/Makefile             | 3 ++-
 scripts/Makefile.gcc-plugins | 8 --------
 3 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index 9eb3f4f..c1f87cf 100644
--- a/Makefile
+++ b/Makefile
@@ -1112,7 +1112,7 @@ prepare1: prepare2 $(version_h) $(autoksyms_h) include/generated/utsrelease.h
 
 macroprepare: prepare1 archmacros
 
-archprepare: archheaders archscripts macroprepare scripts gcc-plugins
+archprepare: archheaders archscripts macroprepare scripts
 
 prepare0: archprepare
 	$(Q)$(MAKE) $(build)=scripts/mod
diff --git a/scripts/Makefile b/scripts/Makefile
index b48259d..feb1f71 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -36,9 +36,10 @@ PHONY += build_unifdef
 build_unifdef: $(obj)/unifdef
 	@:
 
+subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins
 subdir-$(CONFIG_MODVERSIONS) += genksyms
 subdir-$(CONFIG_SECURITY_SELINUX) += selinux
 subdir-$(CONFIG_GDB_SCRIPTS) += gdb
 
 # Let clean descend into subdirs
-subdir-	+= basic dtc kconfig mod package gcc-plugins
+subdir-	+= basic dtc kconfig mod package
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index 46c5c68..c36f199 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins
@@ -49,11 +49,3 @@ KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
 # All enabled GCC plugins are collected here for building below.
 GCC_PLUGIN := $(gcc-plugin-y)
 export GCC_PLUGIN
-
-# Actually do the build, if requested.
-PHONY += gcc-plugins
-gcc-plugins: scripts_basic
-ifdef CONFIG_GCC_PLUGINS
-	$(Q)$(MAKE) $(build)=scripts/gcc-plugins
-endif
-	@:
-- 
2.7.4

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