1 # SPDX-License-Identifier: GPL-2.0-only !! 1 #
2 OBJCOPYFLAGS :=-O binary !! 2 # i386/Makefile
3 GZFLAGS :=-9 !! 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 #
>> 9 # This file is subject to the terms and conditions of the GNU General Public
>> 10 # License. See the file "COPYING" in the main directory of this archive
>> 11 # for more details.
>> 12 #
>> 13 # Copyright (C) 1994 by Linus Torvalds
>> 14 #
>> 15 # 19990713 Artur Skawina <skawina@geocities.com>
>> 16 # Added '-march' and '-mpreferred-stack-boundary' support
>> 17 #
4 18
5 ifdef CONFIG_CPU_HAS_FPU !! 19 LD=$(CROSS_COMPILE)ld -m elf_i386
6 FPUEXT = f !! 20 OBJCOPY=$(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
7 endif 55 endif
8 56
9 ifdef CONFIG_CPU_HAS_VDSP !! 57 ifdef CONFIG_MPENTIUM4
10 VDSPEXT = v !! 58 CFLAGS += -march=i686
11 endif 59 endif
12 60
13 ifdef CONFIG_CPU_HAS_TEE !! 61 ifdef CONFIG_MK6
14 TEEEXT = t !! 62 CFLAGS += $(call check_gcc,-march=k6,-march=i586)
15 endif 63 endif
16 64
17 ifdef CONFIG_CPU_CK610 !! 65 ifdef CONFIG_MK7
18 CPUTYPE = ck610 !! 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
19 CSKYABI = abiv1 <<
20 endif 67 endif
21 68
22 ifdef CONFIG_CPU_CK810 !! 69 ifdef CONFIG_MCRUSOE
23 CPUTYPE = ck810 !! 70 CFLAGS += -march=i686
24 CSKYABI = abiv2 !! 71 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
25 endif 72 endif
26 73
27 ifdef CONFIG_CPU_CK807 !! 74 ifdef CONFIG_MGEODE_LX
28 CPUTYPE = ck807 !! 75 CFLAGS += -march=i686
29 CSKYABI = abiv2 <<
30 endif 76 endif
31 77
32 ifdef CONFIG_CPU_CK860 !! 78 ifdef CONFIG_MWINCHIPC6
33 CPUTYPE = ck860 !! 79 CFLAGS += -march=i586
34 CSKYABI = abiv2 <<
35 endif 80 endif
36 81
37 ifneq ($(CSKYABI),) !! 82 ifdef CONFIG_MWINCHIP2
38 MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEE !! 83 CFLAGS += -march=i586
39 KBUILD_CFLAGS += -mcpu=$(CPUTYPE) -Wa,-mcpu=$( <<
40 KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_S <<
41 KBUILD_CFLAGS += -msoft-float -mdiv <<
42 KBUILD_CFLAGS += -fno-tree-vectorize <<
43 endif 84 endif
44 85
45 KBUILD_CFLAGS += -pipe !! 86 ifdef CONFIG_MWINCHIP3D
46 ifeq ($(CSKYABI),abiv2) !! 87 CFLAGS += -march=i586
47 KBUILD_CFLAGS += -mno-stack-size <<
48 endif 88 endif
49 89
50 ifdef CONFIG_FRAME_POINTER !! 90 ifdef CONFIG_MCYRIXIII
51 KBUILD_CFLAGS += -mbacktrace !! 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)
52 endif 93 endif
53 94
54 abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI !! 95 ifdef CONFIG_MVIAC3_2
55 KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%in !! 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: ;
>> 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
56 140
57 KBUILD_CPPFLAGS += -mlittle-endian !! 141 zlilo: vmlinux
58 LDFLAGS += -EL !! 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
59 143
60 KBUILD_AFLAGS += $(KBUILD_CFLAGS) !! 144 tmp:
>> 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
>> 146 bzlilo: vmlinux
>> 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
61 148
62 core-y += arch/csky/$(CSKYABI)/ !! 149 zdisk: vmlinux
>> 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
63 151
64 libs-y += arch/csky/lib/ \ !! 152 bzdisk: vmlinux
65 $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLA !! 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
66 154
67 boot := arch/csky/boot !! 155 install: vmlinux
>> 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install
68 157
69 all: zImage !! 158 archclean:
>> 159 @$(MAKEBOOT) clean
70 160
71 zImage Image uImage: vmlinux !! 161 archmrproper:
72 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
73 162
74 define archhelp !! 163 archdep:
75 echo '* zImage - Compressed kernel im !! 164 @$(MAKEBOOT) dep
76 echo ' Image - Uncompressed kernel <<
77 echo ' uImage - U-Boot wrapped zImag <<
78 endef <<
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