1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !! 2 # i386/Makefile
4 # 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 #
>> 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)
>> 23
>> 24 CFLAGS += -pipe
>> 25
>> 26 # prevent gcc from keeping the stack 16 byte aligned
>> 27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
>> 28
>> 29 ifdef CONFIG_M386
>> 30 CFLAGS += -march=i386
>> 31 endif
>> 32
>> 33 ifdef CONFIG_M486
>> 34 CFLAGS += -march=i486
>> 35 endif
>> 36
>> 37 ifdef CONFIG_M586
>> 38 CFLAGS += -march=i586
>> 39 endif
>> 40
>> 41 ifdef CONFIG_M586TSC
>> 42 CFLAGS += -march=i586
>> 43 endif
5 44
6 KBUILD_DEFCONFIG := haps_hs_smp_defconfig !! 45 ifdef CONFIG_M586MMX
>> 46 CFLAGS += -march=i586
>> 47 endif
7 48
8 ifeq ($(CROSS_COMPILE),) !! 49 ifdef CONFIG_M686
9 CROSS_COMPILE := $(call cc-cross-prefix, arc-l !! 50 CFLAGS += -march=i686
10 endif 51 endif
11 52
12 cflags-y += -fno-common -pipe -fno-buil !! 53 ifdef CONFIG_MPENTIUMIII
>> 54 CFLAGS += -march=i686
>> 55 endif
13 56
14 tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mc !! 57 ifdef CONFIG_MPENTIUM4
15 tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mc !! 58 CFLAGS += -march=i686
>> 59 endif
16 60
17 ifeq ($(CONFIG_ARC_TUNE_MCPU),) !! 61 ifdef CONFIG_MK6
18 cflags-y += $(t !! 62 CFLAGS += $(call check_gcc,-march=k6,-march=i586)
19 else <<
20 tune-mcpu := $(C <<
21 ifneq ($(call cc-option,$(tune-mcpu)),) <<
22 cflags-y += $(t <<
23 else <<
24 # The flag provided by 'CONFIG_ARC_TUNE_MCPU' <<
25 # (probably the compiler is too old). Use ISA <<
26 $(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU f <<
27 cflags-y += $(t <<
28 endif 63 endif
>> 64
>> 65 ifdef CONFIG_MK7
>> 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
29 endif 67 endif
30 68
31 ifdef CONFIG_ARC_CURR_IN_REG !! 69 ifdef CONFIG_MCRUSOE
32 # For a global register definition, make sure !! 70 CFLAGS += -march=i686
33 # We had a customer reported bug where some co !! 71 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
34 # any kernel headers, and missing the global r <<
35 # Can't do unconditionally because of recursiv <<
36 # due to <linux/thread_info.h> <<
37 LINUXINCLUDE += -include $(srctree)/arch/a <<
38 cflags-y += -ffixed-gp <<
39 endif 72 endif
40 73
41 cflags-y += -fs !! 74 ifdef CONFIG_MGEODE_LX
>> 75 CFLAGS += -march=i686
>> 76 endif
42 77
43 cflags-$(CONFIG_ARC_HAS_LLSC) += -ml !! 78 ifdef CONFIG_MWINCHIPC6
44 cflags-$(CONFIG_ARC_HAS_SWAPE) += -ms !! 79 CFLAGS += -march=i586
>> 80 endif
45 81
46 ifdef CONFIG_ISA_ARCV2 !! 82 ifdef CONFIG_MWINCHIP2
>> 83 CFLAGS += -march=i586
>> 84 endif
47 85
48 ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS !! 86 ifdef CONFIG_MWINCHIP3D
49 cflags-y += -mu !! 87 CFLAGS += -march=i586
50 else <<
51 cflags-y += -mn <<
52 endif 88 endif
53 89
54 ifndef CONFIG_ARC_HAS_LL64 !! 90 ifdef CONFIG_MCYRIXIII
55 cflags-y += -mn !! 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)
56 endif 93 endif
57 94
58 ifndef CONFIG_ARC_HAS_DIV_REM !! 95 ifdef CONFIG_MVIAC3_2
59 cflags-y += -mn !! 96 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
60 endif 97 endif
61 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
62 endif 116 endif
63 117
64 cfi := $(call as-instr,.cfi_startproc\n.cfi_en !! 118 arch/i386/kernel: dummy
65 cflags-$(CONFIG_ARC_DW2_UNWIND) += -fa !! 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
66 125
67 # small data is default for elf32 tool-chain. !! 126 vmlinux: arch/i386/vmlinux.lds
68 # This also allows repurposing GP as scratch r <<
69 disable_small_data := y <<
70 cflags-$(disable_small_data) += -mn <<
71 127
72 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb !! 128 FORCE: ;
73 ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB <<
74 129
75 LIBGCC = $(shell $(CC) $(cflags-y) --print-li !! 130 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
>> 131 clean archclean archmrproper archdep
76 132
77 # Modules with short calls might break for cal !! 133 zImage: vmlinux
78 KBUILD_CFLAGS_MODULE += -mlong-calls -mno-m !! 134 @$(MAKEBOOT) zImage
79 135
80 # Finally dump eveything into kernel build sys !! 136 bzImage: vmlinux
81 KBUILD_CFLAGS += $(cflags-y) !! 137 @$(MAKEBOOT) bzImage
82 KBUILD_AFLAGS += $(KBUILD_CFLAGS) <<
83 KBUILD_LDFLAGS += $(ldflags-y) <<
84 138
85 # w/o this dtb won't embed into kernel binary !! 139 compressed: zImage
86 core-y += arch/arc/boot/dts/ <<
87 140
88 core-y += arch/arc/pl !! 141 zlilo: vmlinux
89 core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/pl !! 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
90 core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/pl <<
91 core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/pl <<
92 143
93 libs-y += arch/arc/lib/ $(LIBGCC) !! 144 tmp:
>> 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
>> 146 bzlilo: vmlinux
>> 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
94 148
95 boot := arch/arc/boot !! 149 zdisk: vmlinux
>> 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
96 151
97 boot_targets := uImage.bin uImage.gz uImage.lz !! 152 bzdisk: vmlinux
>> 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
98 154
99 PHONY += $(boot_targets) !! 155 install: vmlinux
100 $(boot_targets): vmlinux !! 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install
101 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
102 157
103 uimage-default-y := uIm !! 158 archclean:
104 uimage-default-$(CONFIG_KERNEL_GZIP) := uIm !! 159 @$(MAKEBOOT) clean
105 uimage-default-$(CONFIG_KERNEL_LZMA) := uIm <<
106 160
107 PHONY += uImage !! 161 archmrproper:
108 uImage: $(uimage-default-y) <<
109 @ln -sf $< $(boot)/uImage <<
110 @$(kecho) ' Image $(boot)/uImage is r <<
111 162
112 CLEAN_FILES += $(boot)/uImage !! 163 archdep:
>> 164 @$(MAKEBOOT) dep
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