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#
# ia64/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1998-2001 by David Mosberger-Tang <davidm@hpl.hp.com>
#

NM := $(CROSS_COMPILE)nm -B
AWK := awk

export AWK

LINKFLAGS = -static -T arch/$(ARCH)/vmlinux.lds
AFLAGS_KERNEL := -mconstant-gp
EXTRA   =

CFLAGS := $(CFLAGS) -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f12-f15,f32-f127 \
          -falign-functions=32
# -ffunction-sections
CFLAGS_KERNEL := -mconstant-gp

GCC_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f1 -d'.')

CHECK_GAS_FOR_HINT=arch/ia64/scripts/check_gas_for_hint.o
MAKE_GAS_HINT_TEST=arch/ia64/scripts/make_gas_hint_test

ifneq (, $(shell ls $(CHECK_GAS_FOR_HINT)))
$(shell rm $(CHECK_GAS_FOR_HINT))
endif

CHECK_GAS_CMD:=($(CC) $(MAKE_GAS_HINT_TEST).c -o $(MAKE_GAS_HINT_TEST) && $(MAKE_GAS_HINT_TEST) | $(CC) -c -o $(CHECK_GAS_FOR_HINT) -x assembler -; rm -f $(MAKE_GAS_HINT_TEST))>&/dev/null
$(shell $(CHECK_GAS_CMD))
ifneq (, $(shell ls $(CHECK_GAS_FOR_HINT)))
#Newer version of binutil is detected and "hint" instruction is in the kernel
$(warning Warning: Found binutils that supports hint instruction)
FLAGS := $(AFLAGS) -DGAS_HAS_HINT_INSN
CFLAGS := $(CFLAGS) -DGAS_HAS_HINT_INSN
else
$(warning Warning: Please use binutil version 2.14.90.0.4.1 or higher to get the support of hint instruction in kernel.) 
endif

ifneq ($(GCC_VERSION),2)
        CFLAGS += -frename-registers --param max-inline-insns=5000
endif

ifeq ($(CONFIG_ITANIUM_BSTEP_SPECIFIC),y)
        CFLAGS += -mb-step
endif

ifdef CONFIG_IA64_GENERIC
        CORE_FILES      :=      arch/$(ARCH)/hp/hp.o                    \
                                arch/$(ARCH)/dig/dig.a                  \
                                $(CORE_FILES)
        SUBDIRS         :=      arch/$(ARCH)/hp         \
                                arch/$(ARCH)/dig        \
                                $(SUBDIRS)

else # !GENERIC

ifdef CONFIG_IA64_HP_SIM
        SUBDIRS         :=      arch/$(ARCH)/hp         \
                                arch/$(ARCH)/drivers    \
                                $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/hp/hp.o    \
                                $(CORE_FILES)
        DRIVERS         +=      arch/$(ARCH)/drivers/drivers.o
endif

ifdef CONFIG_IA64_HP_ZX1
        SUBDIRS         :=      arch/$(ARCH)/hp                         \
                                arch/$(ARCH)/dig                        \
                                $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/hp/hp.o                    \
                                arch/$(ARCH)/dig/dig.a                  \
                                $(CORE_FILES)
endif

ifdef CONFIG_IA64_SGI_SN
        CFLAGS          += -DBRINGUP
        SUBDIRS         :=      arch/$(ARCH)/sn/kernel  \
                                arch/$(ARCH)/sn/io      \
                                arch/$(ARCH)/sn/fakeprom        \
                                $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/sn/kernel/sn.o     \
                                arch/$(ARCH)/sn/io/sgiio.o      \
                                $(CORE_FILES)
endif

ifdef CONFIG_IA64_SOFTSDV
        SUBDIRS         :=      arch/$(ARCH)/dig        \
                                $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/dig/dig.a  \
                                $(CORE_FILES)
endif

ifdef CONFIG_IA64_DIG
        SUBDIRS         :=      arch/$(ARCH)/dig        \
                                $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/dig/dig.a  \
                                $(CORE_FILES)
endif

endif # !GENERIC

ifdef CONFIG_IA32_SUPPORT
        SUBDIRS         :=      arch/$(ARCH)/ia32 $(SUBDIRS)
        CORE_FILES      :=      arch/$(ARCH)/ia32/ia32.o $(CORE_FILES)
endif

HEAD := arch/$(ARCH)/kernel/head.o arch/ia64/kernel/init_task.o

SUBDIRS := arch/$(ARCH)/tools arch/$(ARCH)/kernel arch/$(ARCH)/mm arch/$(ARCH)/lib $(SUBDIRS)
CORE_FILES := arch/$(ARCH)/kernel/kernel.o arch/$(ARCH)/mm/mm.o $(CORE_FILES)

LIBS := $(TOPDIR)/arch/$(ARCH)/lib/lib.a $(LIBS) \
        $(TOPDIR)/arch/$(ARCH)/lib/lib.a

MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot

vmlinux: arch/$(ARCH)/vmlinux.lds

arch/$(ARCH)/vmlinux.lds: arch/$(ARCH)/vmlinux.lds.S FORCE
        $(CPP) -D__ASSEMBLY__ -C -P -I$(HPATH) -I$(HPATH)/asm-$(ARCH) \
                -traditional arch/$(ARCH)/vmlinux.lds.S > $@

FORCE: ;

compressed: vmlinux
        $(OBJCOPY) --strip-all vmlinux vmlinux-tmp
        gzip vmlinux-tmp
        mv vmlinux-tmp.gz vmlinux.gz

rawboot:
        @$(MAKEBOOT) rawboot

#
# My boot writes directly to a specific disk partition, I doubt most
# people will want to do that without changes..
#
msb my-special-boot:
        @$(MAKEBOOT) msb

bootimage:
        @$(MAKEBOOT) bootimage

srmboot:
        @$(MAKEBOOT) srmboot

archclean:
        @$(MAKEBOOT) clean

check: vmlinux
        arch/ia64/scripts/unwcheck.sh vmlinux

archmrproper:
        rm -f arch/$(ARCH)/vmlinux.lds vmlinux-tmp vmlinux.gz
        @$(MAKE) -C arch/$(ARCH)/tools mrproper

archdep:
        @$(MAKEBOOT) dep

bootpfile:
        @$(MAKEBOOT) bootpfile