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Diffstat (limited to 'arch/alpha/Makefile')
| -rw-r--r-- | arch/alpha/Makefile | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile new file mode 100644 index 0000000..22ebfb2 --- /dev/null +++ b/arch/alpha/Makefile @@ -0,0 +1,130 @@ +# +# 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) $(boot)/$@ + + +prepare: include/asm-$(ARCH)/asm_offsets.h + +arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \ + include/config/MARKER + +include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s + $(call filechk,gen-asm-offsets) + +archclean: + $(Q)$(MAKE) $(clean)=$(boot) + +CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h + +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 |
