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List: linux-kernel
Subject: kernel library ordering
From: Nicolas Pitre <nico () cam ! org>
Date: 2005-10-31 18:48:49
Message-ID: Pine.LNX.4.64.0510311333320.5288 () localhost ! localdomain
[Download RAW message or body]
In the latest kernel, there is an optimized sha1 routine
(arch/arm/lib/sha1.S) meant to override the generic one in lib/sha1.c.
The problem is that lib/lib.a is listed _before_ arch/arm/lib/lib.a in
the link argument list so the architecture specific lib functions are
not picked up in priority.
To work around this the following patch is needed:
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -142,7 +142,7 @@ drivers-$(CONFIG_OPROFILE) += arch/
drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/
-libs-y += arch/arm/lib/
+libs-y := arch/arm/lib/ $(libs-y)
# Default target when executing plain make
ifeq ($(CONFIG_XIP_KERNEL),y)
However I was wondering if there should be a better and generic way to
fix that.
Comments?
Nicolas
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