Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-omap-h63xx.git] / arch / um / Makefile-i386

diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index ae61e3c271e294695c395e9c9bb52ba7509a2b11..302cbe504543c04ea709f030b74425fd6cb859e2 100644 (file)
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -9,11 +9,12 @@ ELF_ARCH              := $(SUBARCH)
 ELF_FORMAT             := elf32-$(SUBARCH)
 OBJCOPYFLAGS           := -O binary -R .note -R .comment -S
 HEADER_ARCH            := x86
+CHECKFLAGS     += -D__i386__
 
 ifeq ("$(origin SUBARCH)", "command line")
 ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
-CFLAGS                 += $(call cc-option,-m32)
-AFLAGS                 += $(call cc-option,-m32)
+KBUILD_CFLAGS          += $(call cc-option,-m32)
+KBUILD_AFLAGS          += $(call cc-option,-m32)
 LINK-y                 += $(call cc-option,-m32)
 UML_OBJCOPYFLAGS       += -F $(ELF_FORMAT)
 
@@ -21,15 +22,8 @@ export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UML_OBJCOPYFLAGS
 endif
 endif
 
-CFLAGS                 += -DCONFIG_X86_32
-AFLAGS                 += -DCONFIG_X86_32
-CONFIG_X86_32          := y
-export CONFIG_X86_32
-
-ARCH_KERNEL_DEFINES += -U__$(SUBARCH)__ -U$(SUBARCH)
-
 # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
-include $(srctree)/arch/i386/Makefile.cpu
+include $(srctree)/arch/x86/Makefile_32.cpu
 
 # prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
 cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
@@ -38,4 +32,11 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
 # an unresolved reference.
 cflags-y += -ffreestanding
 
-CFLAGS += $(cflags-y)
+# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+# a lot more stack due to the lack of sharing of stacklots.  Also, gcc
+# 4.3.0 needs -funit-at-a-time for extern inline functions.
+KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
+                       echo $(call cc-option,-fno-unit-at-a-time); \
+                       else echo $(call cc-option,-funit-at-a-time); fi ;)
+
+KBUILD_CFLAGS += $(cflags-y)