4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main directory of this archive
8 # Copyright (C) 1994 by Linus Torvalds
13 LDFLAGS_vmlinux := -static -N #-relax
14 CHECKFLAGS += -D__alpha__ -m64
15 cflags-y := -pipe -mno-fp-regs -ffixed-8
17 # Determine if we can use the BWX instructions with GAS.
18 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
21 $(error The assembler '$(AS)' does not support the BWX instruction)
24 # Determine if GCC understands the -mcpu= option.
25 have_mcpu := $(call cc-option-yn, -mcpu=ev5)
26 have_mcpu_pca56 := $(call cc-option-yn, -mcpu=pca56)
27 have_mcpu_ev6 := $(call cc-option-yn, -mcpu=ev6)
28 have_mcpu_ev67 := $(call cc-option-yn, -mcpu=ev67)
29 have_msmall_data := $(call cc-option-yn, -msmall-data)
31 cflags-$(have_msmall_data) += -msmall-data
33 # Turn on the proper cpu optimizations.
36 # If GENERIC, make sure to turn off any instruction set extensions that
37 # the host compiler might have on by default. Given that EV4 and EV5
38 # have the same instruction set, prefer EV5 because an EV5 schedule is
39 # more likely to keep an EV4 processor busy than vice-versa.
40 ifeq ($(CONFIG_ALPHA_GENERIC),y)
44 ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)
48 ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)
52 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
56 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)
60 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)
64 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)
68 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
69 ifeq ($(have_mcpu_ev6),y)
72 ifeq ($(have_mcpu_pca56),y)
80 cflags-$(mcpu_done) += -mcpu=$(mcpu)
84 # For TSUNAMI, we must have the assembler not emulate our instructions.
85 # The same is true for IRONGATE, POLARIS, PYXIS.
86 # BWX is most important, but we don't really want any emulation ever.
87 CFLAGS += $(cflags-y) -Wa,-mev6
89 head-y := arch/alpha/kernel/head.o
91 core-y += arch/alpha/kernel/ arch/alpha/mm/
92 core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/
93 drivers-$(CONFIG_OPROFILE) += arch/alpha/oprofile/
94 libs-y += arch/alpha/lib/
96 # export what is needed by arch/alpha/boot/Makefile
97 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
100 boot := arch/alpha/boot
102 #Default target when executing make with no arguments
103 all boot: $(boot)/vmlinux.gz
105 $(boot)/vmlinux.gz: vmlinux
106 $(Q)$(MAKE) $(build)=$(boot) $@
108 bootimage bootpfile bootpzfile: vmlinux
109 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
112 $(Q)$(MAKE) $(clean)=$(boot)
115 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
116 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)'
117 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)'
118 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'