From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bernhard Fischer <rep.nop@aon.at>
Date: Tue, 10 Oct 2006 09:20:00 +0200
Subject: [Buildroot] svn commit: trunk/buildroot/toolchain/kernel-headers
In-Reply-To: <20061009175626.GB24455@codepoet.org>
References: <20061009161313.4F9374859A@busybox.net>
	<20061009175626.GB24455@codepoet.org>
Message-ID: <20061010072000.GC13303@aon.at>
List-Id: <buildroot.busybox.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: buildroot@busybox.net

On Mon, Oct 09, 2006 at 11:56:26AM -0600, Erik Andersen wrote:
>On Mon Oct 09, 2006 at 09:13:13AM -0700, aldot at uclibc.org wrote:
>> --- trunk/buildroot/toolchain/kernel-headers/kernel-headers.mk	2006-10-09 11:53:10 UTC (rev 16346)
>> +++ trunk/buildroot/toolchain/kernel-headers/kernel-headers.mk	2006-10-09 16:13:12 UTC (rev 16347)
>> @@ -128,12 +128,15 @@
>>  
>>  ifeq ($(LINUX_HEADERS_IS_KERNEL),y)
>>  # full kernel tarball >= 2.6.18
>> +
>> +KERNEL_ARCH:=$(shell $(SHELL) -c 'if test "$(ARCH)" = "i486" -o "$(ARCH)" = "i586"; then echo i386; else echo $(ARCH); fi')
>> +
>
>How about something like this:
>
>KERNEL_ARCH := $(shell $(CC) -dumpmachine | sed -e s'/-.*//' \
>	-e s/i.86/i386/ -e s/sun4u/sparc64/ \
>	-e s/arm.*/arm/ -e s/sa110/arm/ \
>	-e s/s390x/s390/ -e s/parisc64/parisc/ \
>	-e s/ppc.*/powerpc/ -e s/mips.*/mips/)

In principle i agree, but then only GCC has -dumpmachine. We know the
TARGET_ARCH beforehand, so shouldn't need to rely on -dumpmachine and a
specific compiler to resolve the correct ARCH to be used for the kernel
(only!), agree?