linux-kernel - [PATCH] sparc: vdso: clean-up vdso Makefile

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Message-Id: <1536723553-21287-1-git-send-email-yamada.masahiro@socionext.com>
Date:   Wed, 12 Sep 2018 12:39:13 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     "David S . Miller" <davem@...emloft.net>,
        sparclinux@...r.kernel.org
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Shannon Nelson <shannon.nelson@...cle.com>,
        linux-kernel@...r.kernel.org, Nick Alcock <nick.alcock@...cle.com>,
        Nagarathnam Muthusamy <nagarathnam.muthusamy@...cle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH] sparc: vdso: clean-up vdso Makefile

arch/sparc/vdso/Makefile is a replica of arch/x86/entry/vdso/Makefile.

Clean-up the Makefile in the same way as I did for x86:

 - Remove unnecessary export
 - Put the generated linker script to $(obj)/ instead of $(src)/
 - Simplify cmd_vdso2c

The corresponding x86 commits are:

 - 61615faf0a89 ("x86/build/vdso: Remove unnecessary export in Makefile")
 - 1742ed2088cc ("x86/build/vdso: Put generated linker scripts to $(obj)/")
 - c5fcdbf15523 ("x86/build/vdso: Simplify 'cmd_vdso2c'")

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

 arch/sparc/vdso/Makefile | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index dd0b5a9..dc85570 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -31,23 +31,21 @@ obj-y += $(vdso_img_objs)
 targets += $(vdso_img_cfiles)
 targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so)
 
-export CPPFLAGS_vdso.lds += -P -C
+CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
 			-Wl,--no-undefined \
 			-Wl,-z,max-page-size=8192 -Wl,-z,common-page-size=8192 \
 			$(DISABLE_LTO)
 
-$(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
+$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
 	$(call if_changed,vdso)
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include
 hostprogs-y			+= vdso2c
 
 quiet_cmd_vdso2c = VDSO2C  $@
-define cmd_vdso2c
-	$(obj)/vdso2c $< $(<:%.dbg=%) $@
-endef
+      cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@
 
 $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE
 	$(call if_changed,vdso2c)
-- 
2.7.4