1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 # Makefile for the Hexagon arch !! 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 #
>> 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 #
3 18
4 KBUILD_DEFCONFIG = comet_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)
5 23
6 # Do not use GP-relative jumps !! 24 CFLAGS += -pipe
7 KBUILD_CFLAGS += -G0 !! 25
8 LDFLAGS_vmlinux += -G0 !! 26 # prevent gcc from keeping the stack 16 byte aligned
9 !! 27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
10 # Do not use single-byte enums; these will ove !! 28
11 KBUILD_CFLAGS += -fno-short-enums !! 29 ifdef CONFIG_M386
12 !! 30 CFLAGS += -march=i386
13 # We must use long-calls: !! 31 endif
14 KBUILD_CFLAGS += -mlong-calls !! 32
15 !! 33 ifdef CONFIG_M486
16 # Modules must use either long-calls, or use p !! 34 CFLAGS += -march=i486
17 # Use long-calls for now, it's easier. And fa !! 35 endif
18 # KBUILD_CFLAGS_MODULE += -fPIC !! 36
19 # KBUILD_LDFLAGS_MODULE += -shared !! 37 ifdef CONFIG_M586
20 KBUILD_CFLAGS_MODULE += -mlong-calls !! 38 CFLAGS += -march=i586
21 !! 39 endif
22 cflags-y += $(call cc-option,-mv${CONFIG_HEXAG !! 40
23 aflags-y += $(call cc-option,-mv${CONFIG_HEXAG !! 41 ifdef CONFIG_M586TSC
24 ldflags-y += $(call cc-option,-mv${CONFIG_HEXA !! 42 CFLAGS += -march=i586
25 !! 43 endif
26 KBUILD_CFLAGS += $(cflags-y) !! 44
27 KBUILD_AFLAGS += $(aflags-y) !! 45 ifdef CONFIG_M586MMX
28 KBUILD_LDFLAGS += $(ldflags-y) !! 46 CFLAGS += -march=i586
29 !! 47 endif
30 # Thread-info register will be r19. This valu !! 48
31 # it is hard-coded in several files. !! 49 ifdef CONFIG_M686
32 TIR_NAME := r19 !! 50 CFLAGS += -march=i686
33 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADI !! 51 endif
34 KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME) !! 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: ;
>> 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 @$(MAKEBOOT) clean
>> 160
>> 161 archmrproper:
>> 162
>> 163 archdep:
>> 164 @$(MAKEBOOT) dep
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.