X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2FMakefile;h=7277d12b816d54d87d28e9d8eb20efef9a8c3527;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=36bef6543ac14e6d7bd8a51157c1657e76509bb8;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 36bef6543..7277d12b8 100644
--- 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
+CFLAGS += -pipe -msoft-float -mregparm=3
 
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
@@ -37,14 +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
 
@@ -68,6 +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
@@ -99,9 +123,22 @@ AFLAGS += $(mflags-y)
 
 boot := arch/i386/boot
 
-.PHONY: zImage bzImage compressed zlilo bzlilo \
-	zdisk bzdisk fdimage fdimage144 fdimage288 install
+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
@@ -119,11 +156,12 @@ zlilo bzlilo: vmlinux
 zdisk bzdisk: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
 
-fdimage fdimage144 fdimage288: vmlinux
+fdimage fdimage144 fdimage288 isoimage: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
 
 install:
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
+endif
 
 archclean:
 	$(Q)$(MAKE) $(clean)=arch/i386/boot
@@ -136,6 +174,10 @@ define archhelp
   echo  '		   install to $$(INSTALL_PATH) and run lilo'
   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
   echo  '  fdimage      - Create a boot floppy image'
+  echo  '  isoimage     - Create a boot CD-ROM image'
 endef
 
-CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf
+CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
+	       arch/$(ARCH)/boot/image.iso \
+	       arch/$(ARCH)/boot/mtools.conf
+CLEAN_FILES += vmlinuz vmlinux-stripped