1 # BK Id: %F% %I% %G% %U% %#% <<
2 # 1 #
3 # This file is included by the global makefile !! 2 # alpha/Makefile
4 # architecture-specific flags and dependencies <<
5 # 3 #
6 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
7 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
8 # for more details. 6 # for more details.
9 # 7 #
10 # Copyright (C) 1994 by Linus Torvalds 8 # Copyright (C) 1994 by Linus Torvalds
11 # Modifications for the OpenRISC architecture: <<
12 # Copyright (C) 2003 Matjaz Breskvar <phoenix@b <<
13 # Copyright (C) 2010-2011 Jonas Bonn <jonas@sou <<
14 # 9 #
15 # Based on: <<
16 # arch/i386/Makefile <<
17 10
18 KBUILD_DEFCONFIG := or1ksim_defconfig !! 11 NM := $(NM) -B
19 12
20 OBJCOPYFLAGS := -O binary -R .note -R .comm !! 13 LINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relax
21 LIBGCC := $(shell $(CC) $(KBUILD_CFLA !! 14 CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8
22 15
23 KBUILD_CFLAGS += -pipe -ffixed-r10 -D__linux !! 16 # Determine if we can use the BWX instructions with GAS.
24 KBUILD_CFLAGS += -msfimm -mshftimm !! 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
25 18
26 all: vmlinux.bin !! 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 := $(CFLAGS) -mcpu=ev56
>> 71 endif
>> 72 endif
>> 73 mcpu_done := y
>> 74 endif
>> 75 endif
>> 76
>> 77 # For TSUNAMI, we must have the assembler not emulate our instructions.
>> 78 # The same is true for IRONGATE, POLARIS, PYXIS.
>> 79 # BWX is most important, but we don't really want any emulation ever.
>> 80
>> 81 ifeq ($(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 := $(CORE_FILES) arch/alpha/math-emu/math-emu.o
>> 95 endif
27 96
28 boot := arch/$(ARCH)/boot !! 97 LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a
29 98
30 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y) !! 99 MAKEBOOT = $(MAKE) -C arch/alpha/boot
31 KBUILD_CFLAGS += $(call cc-option,-mha <<
32 else <<
33 KBUILD_CFLAGS += $(call cc-option,-mso <<
34 endif <<
35 100
36 ifeq ($(CONFIG_OPENRISC_HAVE_INST_DIV),y) !! 101 rawboot:
37 KBUILD_CFLAGS += $(call cc-option,-mha !! 102 @$(MAKEBOOT) rawboot
38 else <<
39 KBUILD_CFLAGS += $(call cc-option,-mso <<
40 endif <<
41 103
42 ifeq ($(CONFIG_OPENRISC_HAVE_INST_CMOV),y) !! 104 #
43 KBUILD_CFLAGS += $(call cc-option,-mcm !! 105 # My boot writes directly to a specific disk partition, I doubt most
44 endif !! 106 # people will want to do that without changes..
>> 107 #
>> 108 msb my-special-boot:
>> 109 @$(MAKEBOOT) msb
45 110
46 ifeq ($(CONFIG_OPENRISC_HAVE_INST_ROR),y) !! 111 bootimage:
47 KBUILD_CFLAGS += $(call cc-option,-mro !! 112 @$(MAKEBOOT) bootimage
48 endif <<
49 113
50 ifeq ($(CONFIG_OPENRISC_HAVE_INST_RORI),y) !! 114 srmboot:
51 KBUILD_CFLAGS += $(call cc-option,-mro !! 115 @$(MAKEBOOT) srmboot
52 endif <<
53 116
54 ifeq ($(CONFIG_OPENRISC_HAVE_INST_SEXT),y) !! 117 archclean:
55 KBUILD_CFLAGS += $(call cc-option,-mse !! 118 @$(MAKE) -C arch/alpha/kernel clean
56 endif !! 119 @$(MAKEBOOT) clean
>> 120 rm -f arch/alpha/vmlinux.lds
>> 121
>> 122 archmrproper:
>> 123
>> 124 archdep:
>> 125 @$(MAKEBOOT) dep
>> 126
>> 127 vmlinux: arch/alpha/vmlinux.lds
57 128
58 libs-y += $(LIBGCC) !! 129 arch/alpha/vmlinux.lds: arch/alpha/vmlinux.lds.in
>> 130 $(CPP) $(CPPFLAGS) -xc -P arch/alpha/vmlinux.lds.in -o arch/alpha/vmlinux.lds
59 131
60 PHONY += vmlinux.bin !! 132 bootpfile:
>> 133 @$(MAKEBOOT) bootpfile
61 134
62 vmlinux.bin: vmlinux !! 135 bootpzfile:
63 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 136 @$(MAKEBOOT) bootpzfile
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