1 # BK Id: %F% %I% %G% %U% %#% !! 1 #
>> 2 # i386/Makefile
2 # 3 #
3 # This file is included by the global makefile 4 # This file is included by the global makefile so that you can add your own
4 # architecture-specific flags and dependencies !! 5 # architecture-specific flags and dependencies. Remember to do have actions
>> 6 # for "archclean" and "archdep" for cleaning up and making dependencies for
>> 7 # this architecture
5 # 8 #
6 # This file is subject to the terms and condit 9 # This file is subject to the terms and conditions of the GNU General Public
7 # License. See the file "COPYING" in the main 10 # License. See the file "COPYING" in the main directory of this archive
8 # for more details. 11 # for more details.
9 # 12 #
10 # Copyright (C) 1994 by Linus Torvalds 13 # 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 # 14 #
15 # Based on: !! 15 # 19990713 Artur Skawina <skawina@geocities.com>
16 # arch/i386/Makefile !! 16 # Added '-march' and '-mpreferred-stack-boundary' support
>> 17 #
>> 18
>> 19 LD=$(CROSS_COMPILE)ld -m elf_i386
>> 20 OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
>> 21 LDFLAGS=-e stext
>> 22 LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS)
17 23
18 KBUILD_DEFCONFIG := or1ksim_defconfig !! 24 CFLAGS += -pipe
>> 25
>> 26 # prevent gcc from keeping the stack 16 byte aligned
>> 27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
>> 28
>> 29 ifdef CONFIG_M386
>> 30 CFLAGS += -march=i386
>> 31 endif
19 32
20 OBJCOPYFLAGS := -O binary -R .note -R .comm !! 33 ifdef CONFIG_M486
21 LIBGCC := $(shell $(CC) $(KBUILD_CFLA !! 34 CFLAGS += -march=i486
>> 35 endif
>> 36
>> 37 ifdef CONFIG_M586
>> 38 CFLAGS += -march=i586
>> 39 endif
>> 40
>> 41 ifdef CONFIG_M586TSC
>> 42 CFLAGS += -march=i586
>> 43 endif
>> 44
>> 45 ifdef CONFIG_M586MMX
>> 46 CFLAGS += -march=i586
>> 47 endif
>> 48
>> 49 ifdef CONFIG_M686
>> 50 CFLAGS += -march=i686
>> 51 endif
>> 52
>> 53 ifdef CONFIG_MPENTIUMIII
>> 54 CFLAGS += -march=i686
>> 55 endif
>> 56
>> 57 ifdef CONFIG_MPENTIUM4
>> 58 CFLAGS += -march=i686
>> 59 endif
>> 60
>> 61 ifdef CONFIG_MK6
>> 62 CFLAGS += $(call check_gcc,-march=k6,-march=i586)
>> 63 endif
22 64
23 KBUILD_CFLAGS += -pipe -ffixed-r10 -D__linux !! 65 ifdef CONFIG_MK7
24 KBUILD_CFLAGS += -msfimm -mshftimm !! 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
>> 67 endif
25 68
26 all: vmlinux.bin !! 69 ifdef CONFIG_MCRUSOE
>> 70 CFLAGS += -march=i686
>> 71 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
>> 72 endif
27 73
28 boot := arch/$(ARCH)/boot !! 74 ifdef CONFIG_MGEODE_LX
>> 75 CFLAGS += -march=i686
>> 76 endif
29 77
30 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y) !! 78 ifdef CONFIG_MWINCHIPC6
31 KBUILD_CFLAGS += $(call cc-option,-mha !! 79 CFLAGS += -march=i586
32 else <<
33 KBUILD_CFLAGS += $(call cc-option,-mso <<
34 endif 80 endif
35 81
36 ifeq ($(CONFIG_OPENRISC_HAVE_INST_DIV),y) !! 82 ifdef CONFIG_MWINCHIP2
37 KBUILD_CFLAGS += $(call cc-option,-mha !! 83 CFLAGS += -march=i586
38 else <<
39 KBUILD_CFLAGS += $(call cc-option,-mso <<
40 endif 84 endif
41 85
42 ifeq ($(CONFIG_OPENRISC_HAVE_INST_CMOV),y) !! 86 ifdef CONFIG_MWINCHIP3D
43 KBUILD_CFLAGS += $(call cc-option,-mcm !! 87 CFLAGS += -march=i586
44 endif 88 endif
45 89
46 ifeq ($(CONFIG_OPENRISC_HAVE_INST_ROR),y) !! 90 ifdef CONFIG_MCYRIXIII
47 KBUILD_CFLAGS += $(call cc-option,-mro !! 91 CFLAGS += $(call check_gcc,-march=c3,-march=i486)
>> 92 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
48 endif 93 endif
49 94
50 ifeq ($(CONFIG_OPENRISC_HAVE_INST_RORI),y) !! 95 ifdef CONFIG_MVIAC3_2
51 KBUILD_CFLAGS += $(call cc-option,-mro !! 96 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
52 endif 97 endif
53 98
54 ifeq ($(CONFIG_OPENRISC_HAVE_INST_SEXT),y) !! 99 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
55 KBUILD_CFLAGS += $(call cc-option,-mse !! 100 # a lot more stack due to the lack of sharing of stacklots.
>> 101 # CFLAGS += $(call if_gcc4,,$(call check_gcc,-fno-unit-at-a-time,))
>> 102 # Disable unit-at-a-time on gcc >= 4 too, because it removes seemingly unused
>> 103 # variables which are indeed module params.
>> 104 CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
>> 105
>> 106 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
>> 107
>> 108 SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib
>> 109
>> 110 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
>> 111 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
>> 112
>> 113 ifdef CONFIG_MATH_EMULATION
>> 114 SUBDIRS += arch/i386/math-emu
>> 115 DRIVERS += arch/i386/math-emu/math.o
56 endif 116 endif
57 117
58 libs-y += $(LIBGCC) !! 118 arch/i386/kernel: dummy
>> 119 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
>> 120
>> 121 arch/i386/mm: dummy
>> 122 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
>> 123
>> 124 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
>> 125
>> 126 vmlinux: arch/i386/vmlinux.lds
>> 127
>> 128 FORCE: ;
>> 129
>> 130 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
>> 131 clean archclean archmrproper archdep
>> 132
>> 133 zImage: vmlinux
>> 134 @$(MAKEBOOT) zImage
>> 135
>> 136 bzImage: vmlinux
>> 137 @$(MAKEBOOT) bzImage
>> 138
>> 139 compressed: zImage
>> 140
>> 141 zlilo: vmlinux
>> 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
>> 143
>> 144 tmp:
>> 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
>> 146 bzlilo: vmlinux
>> 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
>> 148
>> 149 zdisk: vmlinux
>> 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
>> 151
>> 152 bzdisk: vmlinux
>> 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
>> 154
>> 155 install: vmlinux
>> 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install
>> 157
>> 158 archclean:
>> 159 @$(MAKEBOOT) clean
59 160
60 PHONY += vmlinux.bin !! 161 archmrproper:
61 162
62 vmlinux.bin: vmlinux !! 163 archdep:
63 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 164 @$(MAKEBOOT) dep
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