1 # 1 #
2 # alpha/Makefile 2 # alpha/Makefile
3 # 3 #
4 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
6 # for more details. 6 # for more details.
7 # 7 #
8 # Copyright (C) 1994 by Linus Torvalds 8 # Copyright (C) 1994 by Linus Torvalds
9 # 9 #
10 10
11 NM := $(NM) -B 11 NM := $(NM) -B
12 12
13 LDFLAGS_vmlinux := -static -N #-relax 13 LDFLAGS_vmlinux := -static -N #-relax
14 CHECKFLAGS += -D__alpha__ <<
15 cflags-y := -pipe -mno-fp-regs -ffixed- 14 cflags-y := -pipe -mno-fp-regs -ffixed-8
16 cflags-y += $(call cc-option, -fno-jump <<
17 15
18 cpuflags-$(CONFIG_ALPHA_EV56) := -mc !! 16 # Determine if we can use the BWX instructions with GAS.
19 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mc !! 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
20 cpuflags-$(CONFIG_ALPHA_SX164) := -mc <<
21 cpuflags-$(CONFIG_ALPHA_EV6) := -mc <<
22 cpuflags-$(CONFIG_ALPHA_EV67) := -mc <<
23 # If GENERIC, make sure to turn off any instru <<
24 # the host compiler might have on by default. <<
25 cpuflags-$(CONFIG_ALPHA_GENERIC) := -mc <<
26 18
27 cflags-y += $(c !! 19 ifeq ($(old_gas),y)
>> 20 $(error The assembler '$(AS)' does not support the BWX instruction)
>> 21 endif
>> 22
>> 23 # Determine if GCC understands the -mcpu= option.
>> 24 have_mcpu := $(shell if $(CC) -mcpu=ev5 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 25
>> 26 have_mcpu_pca56 := $(shell if $(CC) -mcpu=pca56 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 27
>> 28 have_mcpu_ev6 := $(shell if $(CC) -mcpu=ev6 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 29
>> 30 have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 31
>> 32 have_msmall_data := $(shell if $(CC) -msmall-data -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 33
>> 34 cflags-$(have_msmall_data) += -msmall-data
>> 35
>> 36 # Turn on the proper cpu optimizations.
>> 37 ifeq ($(have_mcpu),y)
>> 38 mcpu_done := n
>> 39 # If GENERIC, make sure to turn off any instruction set extensions that
>> 40 # the host compiler might have on by default. Given that EV4 and EV5
>> 41 # have the same instruction set, prefer EV5 because an EV5 schedule is
>> 42 # more likely to keep an EV4 processor busy than vice-versa.
>> 43 ifeq ($(CONFIG_ALPHA_GENERIC),y)
>> 44 mcpu := ev5
>> 45 mcpu_done := y
>> 46 endif
>> 47 ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)
>> 48 mcpu := pca56
>> 49 mcpu_done := y
>> 50 endif
>> 51 ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)
>> 52 mcpu := pca56
>> 53 mcpu_done := y
>> 54 endif
>> 55 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
>> 56 mcpu := ev4
>> 57 mcpu_done := y
>> 58 endif
>> 59 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)
>> 60 mcpu := ev56
>> 61 mcpu_done := y
>> 62 endif
>> 63 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)
>> 64 mcpu := ev5
>> 65 mcpu_done := y
>> 66 endif
>> 67 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)
>> 68 mcpu := ev67
>> 69 mcpu_done := y
>> 70 endif
>> 71 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
>> 72 ifeq ($(have_mcpu_ev6),y)
>> 73 mcpu := ev6
>> 74 else
>> 75 ifeq ($(have_mcpu_pca56),y)
>> 76 mcpu := pca56
>> 77 else
>> 78 mcpu=ev56
>> 79 endif
>> 80 endif
>> 81 mcpu_done := y
>> 82 endif
>> 83 cflags-$(mcpu_done) += -mcpu=$(mcpu)
>> 84 endif
28 85
29 86
30 # For TSUNAMI, we must have the assembler not 87 # For TSUNAMI, we must have the assembler not emulate our instructions.
31 # The same is true for IRONGATE, POLARIS, PYXI 88 # The same is true for IRONGATE, POLARIS, PYXIS.
32 # BWX is most important, but we don't really w 89 # BWX is most important, but we don't really want any emulation ever.
33 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 !! 90 CFLAGS += $(cflags-y) -Wa,-mev6
34 91
>> 92 head-y := arch/alpha/kernel/head.o
>> 93
>> 94 core-y += arch/alpha/kernel/ arch/alpha/mm/
>> 95 core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/
>> 96 drivers-$(CONFIG_OPROFILE) += arch/alpha/oprofile/
35 libs-y += arch/alpha/ 97 libs-y += arch/alpha/lib/
36 98
37 # export what is needed by arch/alpha/boot/Mak 99 # export what is needed by arch/alpha/boot/Makefile
38 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y)) 100 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
39 export LIBS_Y 101 export LIBS_Y
40 102
41 boot := arch/alpha/boot 103 boot := arch/alpha/boot
42 104
43 #Default target when executing make with no ar 105 #Default target when executing make with no arguments
44 all boot: $(boot)/vmlinux.gz 106 all boot: $(boot)/vmlinux.gz
45 107
46 $(boot)/vmlinux.gz: vmlinux 108 $(boot)/vmlinux.gz: vmlinux
47 $(Q)$(MAKE) $(build)=$(boot) $@ !! 109 $(Q)$(MAKE) -f scripts/Makefile.build obj=$(boot) $@
48 110
49 bootimage bootpfile bootpzfile: vmlinux 111 bootimage bootpfile bootpzfile: vmlinux
50 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 112 $(Q)$(MAKE) -f scripts/Makefile.build obj=$(boot) $(boot)/$@
>> 113
>> 114
>> 115 prepare: include/asm-$(ARCH)/asm_offsets.h
>> 116
>> 117 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
>> 118 include/config/MARKER
>> 119
>> 120 include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
>> 121 $(call filechk,gen-asm-offsets)
>> 122
>> 123 archclean:
>> 124 $(Q)$(MAKE) -f scripts/Makefile.clean obj=$(boot)
51 125
52 archheaders: !! 126 CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h
53 $(Q)$(MAKE) $(build)=arch/alpha/kernel <<
54 127
55 define archhelp 128 define archhelp
56 echo '* boot - Compressed kernel im 129 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
57 echo ' bootimage - SRM bootable image ( 130 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)'
58 echo ' bootpfile - BOOTP bootable image 131 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)'
59 echo ' bootpzfile - compressed kernel BO 132 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
60 endef 133 endef
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