82 lines
1.9 KiB
Diff
82 lines
1.9 KiB
Diff
From: Bastian Blank <waldi@debian.org>
|
|
Subject: kbuild: Make the toolchain variables easily overwritable
|
|
Date: Sun, 22 Feb 2009 15:39:35 +0100
|
|
Forwarded: not-needed
|
|
|
|
Allow make variables to be overridden for each flavour by a file in
|
|
the build tree, .kernelvariables.
|
|
|
|
We currently use this for ARCH, KERNELRELEASE, CC, and in some cases
|
|
also CROSS_COMPILE, CFLAGS_KERNEL and CFLAGS_MODULE.
|
|
|
|
This file can only be read after we establish the build tree, and all
|
|
use of $(ARCH) needs to be moved after this.
|
|
|
|
Index: linux/Makefile
|
|
===================================================================
|
|
--- linux.orig/Makefile
|
|
+++ linux/Makefile
|
|
@@ -321,31 +321,6 @@ include scripts/subarch.include
|
|
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
|
|
ARCH ?= $(SUBARCH)
|
|
|
|
-# Architecture as present in compile.h
|
|
-UTS_MACHINE := $(ARCH)
|
|
-SRCARCH := $(ARCH)
|
|
-
|
|
-# Additional ARCH settings for x86
|
|
-ifeq ($(ARCH),i386)
|
|
- SRCARCH := x86
|
|
-endif
|
|
-ifeq ($(ARCH),x86_64)
|
|
- SRCARCH := x86
|
|
-endif
|
|
-
|
|
-# Additional ARCH settings for sparc
|
|
-ifeq ($(ARCH),sparc32)
|
|
- SRCARCH := sparc
|
|
-endif
|
|
-ifeq ($(ARCH),sparc64)
|
|
- SRCARCH := sparc
|
|
-endif
|
|
-
|
|
-# Additional ARCH settings for sh
|
|
-ifeq ($(ARCH),sh64)
|
|
- SRCARCH := sh
|
|
-endif
|
|
-
|
|
KCONFIG_CONFIG ?= .config
|
|
export KCONFIG_CONFIG
|
|
|
|
@@ -399,6 +374,30 @@ CFLAGS_KERNEL =
|
|
AFLAGS_KERNEL =
|
|
LDFLAGS_vmlinux =
|
|
|
|
+-include $(obj)/.kernelvariables
|
|
+
|
|
+# Architecture as present in compile.h
|
|
+UTS_MACHINE := $(ARCH)
|
|
+SRCARCH := $(ARCH)
|
|
+
|
|
+# Additional ARCH settings for x86
|
|
+ifeq ($(ARCH),i386)
|
|
+ SRCARCH := x86
|
|
+endif
|
|
+ifeq ($(ARCH),x86_64)
|
|
+ SRCARCH := x86
|
|
+endif
|
|
+
|
|
+# Additional ARCH settings for sparc
|
|
+ifeq ($(ARCH),sparc64)
|
|
+ SRCARCH := sparc
|
|
+endif
|
|
+
|
|
+# Additional ARCH settings for sh
|
|
+ifeq ($(ARCH),sh64)
|
|
+ SRCARCH := sh
|
|
+endif
|
|
+
|
|
# Use USERINCLUDE when you must reference the UAPI directories only.
|
|
USERINCLUDE := \
|
|
-I$(srctree)/arch/$(SRCARCH)/include/uapi \
|