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 LINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relax
14 CHECKFLAGS += -D__alpha__ !! 14 CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8
15 cflags-y := -pipe -mno-fp-regs -ffixed- <<
16 cflags-y += $(call cc-option, -fno-jump <<
17 <<
18 cpuflags-$(CONFIG_ALPHA_EV56) := -mc <<
19 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mc <<
20 cpuflags-$(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 15
27 cflags-y += $(c !! 16 # Determine if we can use the BWX instructions with GAS.
>> 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
28 18
>> 19 # Determine if GCC understands the -mcpu= option.
>> 20 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)
>> 21
>> 22 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)
>> 23
>> 24 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)
>> 25
>> 26 have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
>> 27
>> 28 # Turn on the proper cpu optimizations.
>> 29 ifeq ($(have_mcpu),y)
>> 30 # If GENERIC, make sure to turn off any instruction set extensions that
>> 31 # the host compiler might have on by default. Given that EV4 and EV5
>> 32 # have the same instruction set, prefer EV5 because an EV5 schedule is
>> 33 # more likely to keep an EV4 processor busy than vice-versa.
>> 34 mcpu_done := n
>> 35 ifeq ($(CONFIG_ALPHA_GENERIC),y)
>> 36 CFLAGS := $(CFLAGS) -mcpu=ev5
>> 37 mcpu_done := y
>> 38 endif
>> 39 ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)
>> 40 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 41 mcpu_done := y
>> 42 endif
>> 43 ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)
>> 44 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 45 mcpu_done := y
>> 46 endif
>> 47 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
>> 48 CFLAGS := $(CFLAGS) -mcpu=ev4
>> 49 mcpu_done := y
>> 50 endif
>> 51 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)
>> 52 CFLAGS := $(CFLAGS) -mcpu=ev56
>> 53 mcpu_done := y
>> 54 endif
>> 55 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)
>> 56 CFLAGS := $(CFLAGS) -mcpu=ev5
>> 57 mcpu_done := y
>> 58 endif
>> 59 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)
>> 60 CFLAGS := $(CFLAGS) -mcpu=ev67
>> 61 mcpu_done := y
>> 62 endif
>> 63 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
>> 64 ifeq ($(have_mcpu_ev6),y)
>> 65 CFLAGS := $(CFLAGS) -mcpu=ev6
>> 66 else
>> 67 ifeq ($(have_mcpu_pca56),y)
>> 68 CFLAGS := $(CFLAGS) -mcpu=pca56
>> 69 else
>> 70 CFLAGS := $(CFLAGS) -mcpu=ev56
>> 71 endif
>> 72 endif
>> 73 mcpu_done := y
>> 74 endif
>> 75 endif
29 76
30 # For TSUNAMI, we must have the assembler not 77 # For TSUNAMI, we must have the assembler not emulate our instructions.
31 # The same is true for IRONGATE, POLARIS, PYXI 78 # The same is true for IRONGATE, POLARIS, PYXIS.
32 # BWX is most important, but we don't really w 79 # BWX is most important, but we don't really want any emulation ever.
33 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 <<
34 80
35 libs-y += arch/alpha/ !! 81 ifeq ($(old_gas),y)
>> 82 # How do we do #error in make?
>> 83 CFLAGS := --error-please-upgrade-your-assembler
>> 84 endif
>> 85 CFLAGS := $(CFLAGS) -Wa,-mev6
>> 86
>> 87 HEAD := arch/alpha/kernel/head.o
>> 88
>> 89 SUBDIRS := $(SUBDIRS) arch/alpha/kernel arch/alpha/mm arch/alpha/lib \
>> 90 arch/alpha/math-emu
>> 91 CORE_FILES := arch/alpha/kernel/kernel.o arch/alpha/mm/mm.o $(CORE_FILES)
>> 92
>> 93 ifeq ($(CONFIG_MATHEMU),y)
>> 94 CORE_FILES := $(CORE_FILES) arch/alpha/math-emu/math-emu.o
>> 95 endif
>> 96
>> 97 LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a
>> 98
>> 99 MAKEBOOT = $(MAKE) -C arch/alpha/boot
>> 100
>> 101 rawboot:
>> 102 @$(MAKEBOOT) rawboot
>> 103
>> 104 #
>> 105 # My boot writes directly to a specific disk partition, I doubt most
>> 106 # people will want to do that without changes..
>> 107 #
>> 108 msb my-special-boot:
>> 109 @$(MAKEBOOT) msb
>> 110
>> 111 bootimage:
>> 112 @$(MAKEBOOT) bootimage
>> 113
>> 114 srmboot:
>> 115 @$(MAKEBOOT) srmboot
36 116
37 # export what is needed by arch/alpha/boot/Mak !! 117 archclean:
38 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y)) !! 118 @$(MAKE) -C arch/alpha/kernel clean
39 export LIBS_Y !! 119 @$(MAKEBOOT) clean
>> 120 rm -f arch/alpha/vmlinux.lds
40 121
41 boot := arch/alpha/boot !! 122 archmrproper:
42 123
43 #Default target when executing make with no ar !! 124 archdep:
44 all boot: $(boot)/vmlinux.gz !! 125 @$(MAKEBOOT) dep
45 126
46 $(boot)/vmlinux.gz: vmlinux !! 127 vmlinux: arch/alpha/vmlinux.lds
47 $(Q)$(MAKE) $(build)=$(boot) $@ <<
48 128
49 bootimage bootpfile bootpzfile: vmlinux !! 129 arch/alpha/vmlinux.lds: arch/alpha/vmlinux.lds.in
50 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 130 $(CPP) $(CPPFLAGS) -xc -P arch/alpha/vmlinux.lds.in -o arch/alpha/vmlinux.lds
51 131
52 archheaders: !! 132 bootpfile:
53 $(Q)$(MAKE) $(build)=arch/alpha/kernel !! 133 @$(MAKEBOOT) bootpfile
54 134
55 define archhelp !! 135 bootpzfile:
56 echo '* boot - Compressed kernel im !! 136 @$(MAKEBOOT) bootpzfile
57 echo ' bootimage - SRM bootable image ( <<
58 echo ' bootpfile - BOOTP bootable image <<
59 echo ' bootpzfile - compressed kernel BO <<
60 endef <<
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