From: Jeff Dike <jdike@addtoit.com>
To: akpm@osdl.org
Cc: Nishanth Aravamudan <nacc@us.ibm.com>,
linux-kernel@vger.kernel.org,
user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] [PATCH 3/5] UML - Tidy biarch gcc support
Date: Wed, 12 Jul 2006 12:40:01 -0400 [thread overview]
Message-ID: <200607121640.k6CGe1Nf021231@ccure.user-mode-linux.org> (raw)
On top of the previous biarch changes for UML, this makes the
preprocessor changes a bit cleaner. Specify the 64-bit build in CPPFLAGS
on the x86_64 SUBARCH, rather than #undef'ing i386. Compile-tested with
i386 and x86_64 SUBARCHs.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: linux-2.6.17/arch/um/Makefile-x86_64
===================================================================
--- linux-2.6.17.orig/arch/um/Makefile-x86_64 2006-07-12 11:26:41.000000000 -0400
+++ linux-2.6.17/arch/um/Makefile-x86_64 2006-07-12 11:32:52.000000000 -0400
@@ -11,6 +11,7 @@ USER_CFLAGS += -fno-builtin -m64
CHECKFLAGS += -m64
AFLAGS += -m64
LDFLAGS += -m elf_x86_64
+CPPFLAGS += -m64
ELF_ARCH := i386:x86-64
ELF_FORMAT := elf64-x86-64
Index: linux-2.6.17/arch/um/kernel/vmlinux.lds.S
===================================================================
--- linux-2.6.17.orig/arch/um/kernel/vmlinux.lds.S 2006-07-12 11:26:41.000000000 -0400
+++ linux-2.6.17/arch/um/kernel/vmlinux.lds.S 2006-07-12 11:32:52.000000000 -0400
@@ -1,5 +1,3 @@
-/* in case the preprocessor is a 32bit one */
-#undef i386
#ifdef CONFIG_LD_SCRIPT_STATIC
#include "uml.lds.S"
#else
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