linux-imx/arch/alpha/Makefile

alpha/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) 1994 by Linus Torvalds

NM := $(NM) -B

LDFLAGS_vmlinux := -static -N #-relax CHECKFLAGS += -D__alpha__ -m64 cflags-y := -pipe -mno-fp-regs -ffixed-8

Determine if we can use the BWX instructions with GAS.

old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)

ifeq ($(old_gas),y) $(error The assembler '$(AS)' does not support the BWX instruction) endif

Determine if GCC understands the -mcpu= option.

have_mcpu := $(call cc-option-yn, -mcpu=ev5) have_mcpu_pca56 := $(call cc-option-yn, -mcpu=pca56) have_mcpu_ev6 := $(call cc-option-yn, -mcpu=ev6) have_mcpu_ev67 := $(call cc-option-yn, -mcpu=ev67) have_msmall_data := $(call cc-option-yn, -msmall-data)

cflags-$(have_msmall_data) += -msmall-data

Turn on the proper cpu optimizations.

ifeq ($(have_mcpu),y) mcpu_done := n

If GENERIC, make sure to turn off any instruction set extensions that

the host compiler might have on by default. Given that EV4 and EV5

have the same instruction set, prefer EV5 because an EV5 schedule is

more likely to keep an EV4 processor busy than vice-versa.

ifeq ($(CONFIG_ALPHA_GENERIC),y) mcpu := ev5 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy) mcpu := pca56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy) mcpu := pca56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny) mcpu := ev4 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny) mcpu := ev56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny) mcpu := ev5 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy) mcpu := ev67 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny) ifeq ($(have_mcpu_ev6),y) mcpu := ev6 else ifeq ($(have_mcpu_pca56),y) mcpu := pca56 else mcpu=ev56 endif endif mcpu_done := y endif cflags-$(mcpu_done) += -mcpu=$(mcpu) endif

For TSUNAMI, we must have the assembler not emulate our instructions.

The same is true for IRONGATE, POLARIS, PYXIS.

BWX is most important, but we don't really want any emulation ever.

CFLAGS += $(cflags-y) -Wa,-mev6

head-y := arch/alpha/kernel/head.o

core-y += arch/alpha/kernel/ arch/alpha/mm/ core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/ drivers-$(CONFIG_OPROFILE) += arch/alpha/oprofile/ libs-y += arch/alpha/lib/

export what is needed by arch/alpha/boot/Makefile

LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y)) export LIBS_Y

boot := arch/alpha/boot

#Default target when executing make with no arguments all boot: $(boot)/vmlinux.gz

$(boot)/vmlinux.gz: vmlinux $(Q)$(MAKE) $(build)=$(boot) $@

bootimage bootpfile bootpzfile: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@

archclean: $(Q)$(MAKE) $(clean)=$(boot)

define archhelp echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)' echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)' echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)' echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)' endef