linux-kernel - [PATCH] [2/5] kbuild: Check if linker supports the -X option

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Date:	Wed,  5 Aug 2009 23:51:28 +0200 (CEST)
From:	Andi Kleen <andi@...stfloor.org>
To:	sam@...nborg.org, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] [2/5] kbuild: Check if linker supports the -X option


The new alternative `gold' linker in recent binutils doesn't support
the -X option. This breaks allyesconfig builds that have 
CONFIG_STRIP_ASM_SYMS enabled. Check if the linker really supports
the option using ld-option.

This requires fixes in earlier patches.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>

---
 Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.31-rc1-ak/Makefile
===================================================================
--- linux-2.6.31-rc1-ak.orig/Makefile
+++ linux-2.6.31-rc1-ak/Makefile
@@ -599,7 +599,7 @@ LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
 
 ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
-LDFLAGS_vmlinux	+= -X
+LDFLAGS_vmlinux	+= $(call ld-option, -X,)
 endif
 
 # Default kernel image to build when no specific target is given.
--
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