1 # 1 #
>> 2 # i386/Makefile
>> 3 #
>> 4 # This file is included by the global makefile so that you can add your own
>> 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
>> 8 #
2 # This file is subject to the terms and condit 9 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main 10 # License. See the file "COPYING" in the main directory of this archive
4 # for more details. 11 # for more details.
5 # 12 #
6 # Copyright (C) 2013 Altera Corporation !! 13 # Copyright (C) 1994 by Linus Torvalds
7 # Copyright (C) 1994, 95, 96, 2003 by Wind Riv <<
8 # Written by Fredrik Markstrom <<
9 # 14 #
10 # This file is included by the global makefile !! 15 # 19990713 Artur Skawina <skawina@geocities.com>
11 # architecture-specific flags and dependencies !! 16 # Added '-march' and '-mpreferred-stack-boundary' support
12 # 17 #
13 # Nios2 port by Wind River Systems Inc trough: <<
14 # fredrik.markstrom@gmail.com and ivarholmqv <<
15 18
16 KBUILD_DEFCONFIG := 3c120_defconfig !! 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)
>> 23
>> 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
>> 32
>> 33 ifdef CONFIG_M486
>> 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
>> 64
>> 65 ifdef CONFIG_MK7
>> 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
>> 67 endif
>> 68
>> 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
>> 73
>> 74 ifdef CONFIG_MGEODE_LX
>> 75 CFLAGS += -march=i686
>> 76 endif
>> 77
>> 78 ifdef CONFIG_MWINCHIPC6
>> 79 CFLAGS += -march=i586
>> 80 endif
>> 81
>> 82 ifdef CONFIG_MWINCHIP2
>> 83 CFLAGS += -march=i586
>> 84 endif
>> 85
>> 86 ifdef CONFIG_MWINCHIP3D
>> 87 CFLAGS += -march=i586
>> 88 endif
>> 89
>> 90 ifdef CONFIG_MCYRIXIII
>> 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)
>> 93 endif
>> 94
>> 95 ifdef CONFIG_MVIAC3_2
>> 96 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
>> 97 endif
>> 98
>> 99 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
>> 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
>> 116 endif
>> 117
>> 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: ;
17 129
18 UTS_SYSNAME = Linux !! 130 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
>> 131 clean archclean archmrproper archdep
19 132
20 export MMU !! 133 zImage: vmlinux
>> 134 @$(MAKEBOOT) zImage
21 135
22 LIBGCC := $(shell $(CC) $(KBUILD_CFLAG !! 136 bzImage: vmlinux
>> 137 @$(MAKEBOOT) bzImage
23 138
24 KBUILD_AFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 139 compressed: zImage
25 140
26 KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__ !! 141 zlilo: vmlinux
27 KBUILD_CFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
28 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SU <<
29 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_S <<
30 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SU <<
31 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_BMX_SUPPO <<
32 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_CDX_SUPPO <<
33 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPO <<
34 143
35 KBUILD_CFLAGS += -fno-optimize-sibling-calls !! 144 tmp:
36 KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME !! 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
37 KBUILD_CFLAGS += -fno-builtin !! 146 bzlilo: vmlinux
38 KBUILD_CFLAGS += -G 0 !! 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
39 148
40 libs-y += arch/nios2/lib/ $(LIBGCC) !! 149 zdisk: vmlinux
>> 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
41 151
42 INSTALL_PATH ?= /tftpboot !! 152 bzdisk: vmlinux
43 nios2-boot := arch/$(ARCH)/boot !! 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
44 BOOT_TARGETS = vmImage zImage <<
45 PHONY += $(BOOT_TARGETS) install <<
46 KBUILD_IMAGE := $(nios2-boot)/vmImage <<
47 154
48 all: vmImage !! 155 install: vmlinux
>> 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install
49 157
50 $(BOOT_TARGETS): vmlinux !! 158 archclean:
51 $(Q)$(MAKE) $(build)=$(nios2-boot) $(n !! 159 @$(MAKEBOOT) clean
52 160
53 install: !! 161 archmrproper:
54 $(call cmd,install) <<
55 162
56 define archhelp !! 163 archdep:
57 echo '* vmImage - Kernel-only image !! 164 @$(MAKEBOOT) dep
58 echo ' install - Install kernel us <<
59 echo ' (your) ~/bin/$(I <<
60 echo ' (distribution) / <<
61 echo ' install to $$(IN <<
62 endef <<
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