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 += $(shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi)
  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_M686FXSR
  54 CFLAGS += -march=i686
  55 endif
  56
  57 ifdef CONFIG_MPENTIUM4
  58 CFLAGS += -march=i686
  59 endif
  60
  61 ifdef CONFIG_MK6
  62 CFLAGS += $(shell if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi)
  63 endif
  64
  65 ifdef CONFIG_MK7
  66 CFLAGS += $(shell if $(CC) -march=athlon -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=athlon"; else echo "-march=i686 -malign-functions=4"; fi)
  67 endif
  68
  69 ifdef CONFIG_MCRUSOE
  70 CFLAGS += -march=i686 -malign-functions=0 -malign-jumps=0 -malign-loops=0
  71 endif
  72
  73 ifdef CONFIG_MWINCHIPC6
  74 CFLAGS += -march=i586
  75 endif
  76
  77 ifdef CONFIG_MWINCHIP2
  78 CFLAGS += -march=i586
  79 endif
  80
  81 ifdef CONFIG_MWINCHIP3D
  82 CFLAGS += -march=i586
  83 endif
  84
  85 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
  86
  87 SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib
  88
  89 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
  90 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
  91
  92 ifdef CONFIG_MATH_EMULATION
  93 SUBDIRS += arch/i386/math-emu
  94 DRIVERS += arch/i386/math-emu/math.o
  95 endif
  96
  97 arch/i386/kernel: dummy
  98         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
  99
 100 arch/i386/mm: dummy
 101         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
 102
 103 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
 104
 105 vmlinux: arch/i386/vmlinux.lds
 106
 107 FORCE: ;
 108
 109 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
 110                 clean archclean archmrproper archdep
 111
 112 zImage: vmlinux
 113         @$(MAKEBOOT) zImage
 114
 115 bzImage: vmlinux
 116         @$(MAKEBOOT) bzImage
 117
 118 compressed: zImage
 119
 120 zlilo: vmlinux
 121         @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
 122
 123 tmp:
 124         @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
 125 bzlilo: vmlinux
 126         @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
 127
 128 zdisk: vmlinux
 129         @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
 130
 131 bzdisk: vmlinux
 132         @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
 133
 134 install: vmlinux
 135         @$(MAKEBOOT) BOOTIMAGE=bzImage install
 136
 137 archclean:
 138         @$(MAKEBOOT) clean
 139
 140 archmrproper:
 141
 142 archdep:
 143         @$(MAKEBOOT) dep