linux-kernel - [PATCH] s390/vdso: emit a GNU hash

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Date:	Fri, 7 Aug 2015 09:02:57 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Andy Lutomirski <luto@...nel.org>,
	Anton Blanchard <anton@...ba.org>,
	Chris Metcalf <cmetcalf@...era.com>,
	Richard Kuo <rkuo@...eaurora.org>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Nathan Lynch <nathan_lynch@...tor.com>,
	Isaac Dunham <ibid.ag@...il.com>,
	Rich Felker <dalias@...c.org>,
	"musl@...ts.openwall.com" <musl@...ts.openwall.com>
Subject: [PATCH] s390/vdso: emit a GNU hash

>From 9a3d93634bd74b07a988fa0fc729d1f711253a91 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@...ibm.com>
Date: Fri, 7 Aug 2015 08:55:48 +0200
Subject: [PATCH] s390/vdso: emit a GNU hash

As proposed by Andy Lutomirski create the SysV and the GNU hash
for the vdso objects. This may make some dynamic loaders a bit
faster.

Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>
---
 arch/s390/kernel/vdso32/Makefile | 2 +-
 arch/s390/kernel/vdso64/Makefile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index 8ad2b34..ee8a18e 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -13,7 +13,7 @@ KBUILD_AFLAGS_31 += -m31 -s
 KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS))
 KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin
 KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
-			$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
+			$(call cc-ldoption, -Wl$(comma)--hash-style=both)
 
 $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31)
 $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31)
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index 2a8ddfd..c4b03f9 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -13,7 +13,7 @@ KBUILD_AFLAGS_64 += -m64 -s
 KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS))
 KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin
 KBUILD_CFLAGS_64 += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
-			$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
+			$(call cc-ldoption, -Wl$(comma)--hash-style=both)
 
 $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64)
 $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64)
-- 
2.3.8

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