mirror of https://gitee.com/openkylin/linux.git
120 lines
3.4 KiB
Makefile
120 lines
3.4 KiB
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
|