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=$(CROSS_COMPILE)ld -m elf_i386
  20 CPP=$(CC) -E
  21 OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
  22 LDFLAGS=-e stext
  23 LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS)
  24
  25 CFLAGS_PIPE := -pipe
  26 CFLAGS_NSR  := -fno-strength-reduce
  27 CFLAGS := $(CFLAGS) $(CFLAGS_PIPE) $(CFLAGS_NSR)
  28
  29 # prevent gcc from keeping the stack 16 byte aligned
  30 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)
  31
  32 ifdef CONFIG_M386
  33 CFLAGS := $(CFLAGS) -m386 -DCPU=386
  34 AFLAGS := $(AFLAGS) -DCPU=386
  35 endif
  36
  37 ifdef CONFIG_M486
  38 CFLAGS := $(CFLAGS) -m486 -DCPU=486
  39 CFLAGS += $(shell if $(CC) -march=i486 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i486"; fi)
  40 AFLAGS := $(AFLAGS) -DCPU=486
  41 endif
  42
  43 ifdef CONFIG_M586
  44 CFLAGS := $(CFLAGS) -DCPU=586
  45 CFLAGS += $(shell if $(CC) -march=i586 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i586"; fi)
  46 AFLAGS := $(AFLAGS) -DCPU=586
  47 endif
  48
  49 ifdef CONFIG_M586TSC
  50 CFLAGS := $(CFLAGS) -DCPU=586
  51 CFLAGS += $(shell if $(CC) -march=i586 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i586"; fi)
  52 AFLAGS := $(AFLAGS) -DCPU=586
  53 endif
  54
  55 ifdef CONFIG_M686
  56 CFLAGS := $(CFLAGS) -DCPU=686
  57 CFLAGS += $(shell if $(CC) -march=i686 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i686"; fi)
  58 AFLAGS := $(AFLAGS) -DCPU=686
  59 endif
  60
  61 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
  62
  63 SUBDIRS := $(SUBDIRS) arch/i386/kernel arch/i386/mm arch/i386/lib
  64 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
  65 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
  66
  67 ifdef CONFIG_MATH_EMULATION
  68 SUBDIRS := $(SUBDIRS) arch/i386/math-emu
  69 DRIVERS := $(DRIVERS) arch/i386/math-emu/math.a
  70 endif
  71
  72 arch/i386/kernel: dummy
  73         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
  74
  75 arch/i386/mm: dummy
  76         $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
  77
  78 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
  79
  80 vmlinux: arch/i386/vmlinux.lds
  81
  82 arch/i386/vmlinux.lds: arch/i386/vmlinux.lds.S FORCE
  83         gcc -E -C -P -I$(HPATH) -imacros $(HPATH)/asm-i386/page_offset.h -Ui386 arch/i386/vmlinux.lds.S >arch/i386/vmlinux.lds
  84
  85 FORCE: ;
  86
  87 zImage: vmlinux
  88         @$(MAKEBOOT) zImage
  89
  90 bzImage: vmlinux
  91         @$(MAKEBOOT) bzImage
  92
  93 compressed: zImage
  94
  95 zlilo: vmlinux
  96         @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
  97
  98 bzlilo: vmlinux
  99         @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
 100
 101 zdisk: vmlinux
 102         @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
 103
 104 bzdisk: vmlinux
 105         @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
 106
 107 install: vmlinux
 108         @$(MAKEBOOT) BOOTIMAGE=bzImage install
 109
 110 archclean:
 111         @$(MAKEBOOT) clean
 112
 113 archmrproper:
 114
 115 archdep:
 116         @$(MAKEBOOT) dep