i386: prepare shared lib/mmx.c

[safe/jmp/linux-2.6] / arch / i386 / Makefile

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index d3c0409..45409c1 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
+CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
 
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
@@ -37,73 +39,87 @@ 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
 
-# -mregparm=3 works ok on gcc-3.0 and later
-#
-cflags-$(CONFIG_REGPARM) += $(shell if [ $(call cc-version) -ge 0300 ] ; then \
-                            echo "-mregparm=3"; fi ;)
+# 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, it makes gcc use a lot more stack
-# due to the lack of sharing of stacklots.
-CFLAGS += $(call cc-option,-fno-unit-at-a-time)
+# 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 += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\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)
 
 # Default subarch .c files
-mcore-y  := mach-default
+mcore-y  := arch/i386/mach-default
 
 # Voyager subarch support
 mflags-$(CONFIG_X86_VOYAGER)   := -Iinclude/asm-i386/mach-voyager
-mcore-$(CONFIG_X86_VOYAGER)    := mach-voyager
+mcore-$(CONFIG_X86_VOYAGER)    := arch/i386/mach-voyager
 
 # VISWS subarch support
 mflags-$(CONFIG_X86_VISWS)     := -Iinclude/asm-i386/mach-visws
-mcore-$(CONFIG_X86_VISWS)      := mach-visws
+mcore-$(CONFIG_X86_VISWS)      := arch/i386/mach-visws
 
 # NUMAQ subarch support
 mflags-$(CONFIG_X86_NUMAQ)     := -Iinclude/asm-i386/mach-numaq
-mcore-$(CONFIG_X86_NUMAQ)      := mach-default
+mcore-$(CONFIG_X86_NUMAQ)      := arch/i386/mach-default
 
 # BIGSMP subarch support
 mflags-$(CONFIG_X86_BIGSMP)    := -Iinclude/asm-i386/mach-bigsmp
-mcore-$(CONFIG_X86_BIGSMP)     := mach-default
+mcore-$(CONFIG_X86_BIGSMP)     := arch/i386/mach-default
 
 #Summit subarch support
 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
-mcore-$(CONFIG_X86_SUMMIT)  := mach-default
+mcore-$(CONFIG_X86_SUMMIT)  := arch/i386/mach-default
 
 # generic subarchitecture
 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
-mcore-$(CONFIG_X86_GENERICARCH) := mach-default
+mcore-$(CONFIG_X86_GENERICARCH) := arch/i386/mach-default
 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
 
 # ES7000 subarch support
 mflags-$(CONFIG_X86_ES7000)    := -Iinclude/asm-i386/mach-es7000
-mcore-$(CONFIG_X86_ES7000)     := mach-default
+mcore-$(CONFIG_X86_ES7000)     := arch/i386/mach-default
 core-$(CONFIG_X86_ES7000)      := arch/i386/mach-es7000/
 
+# Xen paravirtualization support
+core-$(CONFIG_XEN)             += arch/i386/xen/
+
 # default subarch .h files
 mflags-y += -Iinclude/asm-i386/mach-default
 
-head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
+head-y := arch/i386/kernel/head_32.o arch/i386/kernel/init_task_32.o
 
 libs-y                                         += arch/i386/lib/
 core-y                                 += arch/i386/kernel/ \
                                           arch/i386/mm/ \
-                                          arch/i386/$(mcore-y)/ \
+                                          $(mcore-y)/ \
                                           arch/i386/crypto/
 drivers-$(CONFIG_MATH_EMULATION)       += arch/i386/math-emu/
 drivers-$(CONFIG_PCI)                  += arch/i386/pci/
 # must be linked after kernel/
 drivers-$(CONFIG_OPROFILE)             += arch/i386/oprofile/
 drivers-$(CONFIG_PM)                   += arch/i386/power/
+drivers-$(CONFIG_FB)                    += arch/i386/video/
 
 CFLAGS += $(mflags-y)
 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
 
 all: bzImage
 
@@ -122,7 +138,7 @@ 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:
@@ -139,6 +155,9 @@ 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