[gentoo-user] kernel cross compilation

[gentoo-user] kernel cross compilation

[David Relson]

My workstation is an AMD64 and I want to build a 486 kernel.  I've
tried oldconfig, menuconfig, and xconfig and they all change
the .config from X86_32 to X86_64.  How do I stop this behavior?

FWIW, below is a partial diff between the 486 .config and the new
config.

Thanks.

David


root@osage linux # diff -u .config.old .config 
--- .config.old 2009-04-15 18:47:58.000000000 -0400 
+++ .config 2009-06-27 13:26:53.000000000 -0400 
@@ -1,18 +1,19 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.27
-# Wed Apr 15 18:47:58 2009
+# Linux kernel version: 2.6.27.25
+# Sat Jun 27 13:26:53 2009
 #
-# CONFIG_64BIT is not set
-CONFIG_X86_32=y
-# CONFIG_X86_64 is not set
+CONFIG_64BIT=y
+# CONFIG_X86_32 is not set
+CONFIG_X86_64=y
 CONFIG_X86=y
-CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
+CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
 # CONFIG_GENERIC_LOCKBREAK is not set
...

Re: [gentoo-user] kernel cross compilation

[Dirk Heinrichs]

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Am Samstag 27 Juni 2009 19:33:48 schrieb David Relson:
> My workstation is an AMD64 and I want to build a 486 kernel.  I've
> tried oldconfig, menuconfig, and xconfig and they all change
> the .config from X86_32 to X86_64.  How do I stop this behavior?

make CROSS_COMPILE=i686-pc-linux-gnu- ARCH=i386 ...

HTH...

	Dirk

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Re: [gentoo-user] kernel cross compilation

[David Relson]

On Sat, 27 Jun 2009 20:13:25 +0200
Dirk Heinrichs wrote:

> Am Samstag 27 Juni 2009 19:33:48 schrieb David Relson:
> > My workstation is an AMD64 and I want to build a 486 kernel.  I've
> > tried oldconfig, menuconfig, and xconfig and they all change
> > the .config from X86_32 to X86_64.  How do I stop this behavior?
> 
> make CROSS_COMPILE=i686-pc-linux-gnu- ARCH=i386 ...
> 
> HTH...
> 
> 	Dirk

Exactly the sort of answer I wanted.

Thanks, Dirk.

Re: [gentoo-user] kernel cross compilation

[Xavier Parizet]

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Dirk Heinrichs a écrit :
> Am Samstag 27 Juni 2009 19:33:48 schrieb David Relson:
>> My workstation is an AMD64 and I want to build a 486 kernel.  I've
>> tried oldconfig, menuconfig, and xconfig and they all change
>> the .config from X86_32 to X86_64.  How do I stop this behavior?
> 
> make CROSS_COMPILE=i686-pc-linux-gnu- ARCH=i386 ...

Try also linux32 command from sys-apps/util-linux .

> HTH...
> 
> 	Dirk


-- 
      Xavier Parizet
YaGB :   http://gentooist.com
GPG  :    DC81 6FEE 6EBE FCE4
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