arch/i386/Makefile

   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 #
   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
  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_MWINCHIPC6
  75 CFLAGS += -march=i586
  76 endif
  77
  78 ifdef CONFIG_MWINCHIP2
  79 CFLAGS += -march=i586
  80 endif
  81
  82 ifdef CONFIG_MWINCHIP3D
  83 CFLAGS += -march=i586
  84 endif
  85
  86 ifdef CONFIG_MCYRIXIII
  87 CFLAGS += $(call check_gcc,-march=c3,-march=i486)
  88 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
  89 endif
  90
  91 ifdef CONFIG_MVIAC3_2
  92 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
  93 endif
  94
  95 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
  96 # due to the lack of sharing of stacklots.
  97 CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
  98
  99 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
 100
 101 SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib
 102
 103 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
 104 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
 105
 106 ifdef CONFIG_MATH_EMULATION
 107 SUBDIRS += arch/i386/math-emu
 108 DRIVERS += arch/i386/math-emu/math.o
 109 endif
 110
 111 arch/i386/kernel: dummy
 112         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
 113
 114 arch/i386/mm: dummy
 115         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
 116
 117 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
 118
 119 vmlinux: arch/i386/vmlinux.lds
 120
 121 FORCE: ;
 122
 123 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
 124                 clean archclean archmrproper archdep
 125
 126 zImage: vmlinux
 127         @$(MAKEBOOT) zImage
 128
 129 bzImage: vmlinux
 130         @$(MAKEBOOT) bzImage
 131
 132 compressed: zImage
 133
 134 zlilo: vmlinux
 135         @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
 136
 137 tmp:
 138         @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
 139 bzlilo: vmlinux
 140         @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
 141
 142 zdisk: vmlinux
 143         @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
 144
 145 bzdisk: vmlinux
 146         @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
 147
 148 install: vmlinux
 149         @$(MAKEBOOT) BOOTIMAGE=bzImage install
 150
 151 archclean:
 152         @$(MAKEBOOT) clean
 153
 154 archmrproper:
 155
 156 archdep:
 157         @$(MAKEBOOT) dep