fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / i386 / Makefile

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 94e0faf..7277d12 100644 (file)
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -26,10 +26,12 @@ endif
 
 LDFLAGS                := -m elf_i386
 OBJCOPYFLAGS   := -O binary -R .note -R .comment -S
-LDFLAGS_vmlinux :=
+ifdef CONFIG_RELOCATABLE
+LDFLAGS_vmlinux := --emit-relocs
+endif
 CHECKFLAGS     += -D__i386__
 
-CFLAGS += -pipe -msoft-float -fno-builtin-sprintf -fno-builtin-log2 -fno-builtin-puts 
+CFLAGS += -pipe -msoft-float -mregparm=3
 
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
@@ -37,17 +39,32 @@ CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 # CPU-specific tuning. Anything which can be shared with UML should go here.
 include $(srctree)/arch/i386/Makefile.cpu
 
-cflags-$(CONFIG_REGPARM) += -mregparm=3
-
 # temporary until string.h is fixed
 cflags-y += -ffreestanding
 
+# this works around some issues with generating unwind tables in older gccs
+# newer gccs do it by default
+cflags-y += -maccumulate-outgoing-args
+
 # 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:
 CFLAGS                         += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
 
+# do binutils support CFI?
+cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+
+# is .cfi_signal_frame supported too?
+cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
+AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
+
 CFLAGS += $(cflags-y)
 
+cppflags-$(CONFIG_XEN) += \
+       -D__XEN_INTERFACE_VERSION__=$(CONFIG_XEN_INTERFACE_VERSION)
+
+CPPFLAGS += $(cppflags-y)
+
 # Default subarch .c files
 mcore-y  := mach-default
 
@@ -71,6 +88,10 @@ mcore-$(CONFIG_X86_BIGSMP)   := mach-default
 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
 
+# Xen subarch support
+mflags-$(CONFIG_X86_XEN)       := -Iinclude/asm-i386/mach-xen
+mcore-$(CONFIG_X86_XEN)                := mach-xen
+
 # generic subarchitecture
 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
@@ -105,6 +126,19 @@ boot := arch/i386/boot
 PHONY += zImage bzImage compressed zlilo bzlilo \
          zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
 
+ifdef CONFIG_XEN
+CPPFLAGS := -Iinclude$(if $(KBUILD_SRC),2)/asm/mach-xen $(CPPFLAGS)
+head-y := arch/i386/kernel/head-xen.o arch/i386/kernel/init_task-xen.o
+boot := arch/i386/boot-xen
+.PHONY: vmlinuz
+all: vmlinuz
+
+vmlinuz: vmlinux
+       $(Q)$(MAKE) $(build)=$(boot) $@
+
+install:
+       $(Q)$(MAKE) $(build)=$(boot) XENGUEST=$(XENGUEST) $@
+else
 all: bzImage
 
 # KBUILD_IMAGE specify target image being built
@@ -127,6 +161,7 @@ fdimage fdimage144 fdimage288 isoimage: vmlinux
 
 install:
        $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
+endif
 
 archclean:
        $(Q)$(MAKE) $(clean)=arch/i386/boot
@@ -145,3 +180,4 @@ endef
 CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
               arch/$(ARCH)/boot/image.iso \
               arch/$(ARCH)/boot/mtools.conf
+CLEAN_FILES += vmlinuz vmlinux-stripped