arch/s390/Makefile

   1 #
   2 # s390/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
  16 ifndef CONFIG_64BIT
  17 LD_BFD          := elf32-s390
  18 LDFLAGS         := -m elf_s390
  19 KBUILD_CFLAGS   += -m31
  20 KBUILD_AFLAGS   += -m31
  21 UTS_MACHINE     := s390
  22 STACK_SIZE      := 8192
  23 CHECKFLAGS      += -D__s390__ -msize-long
  24 else
  25 LD_BFD          := elf64-s390
  26 LDFLAGS         := -m elf64_s390
  27 KBUILD_AFLAGS_MODULE += -fPIC
  28 KBUILD_CFLAGS_MODULE += -fPIC
  29 KBUILD_CFLAGS   += -m64
  30 KBUILD_AFLAGS   += -m64
  31 UTS_MACHINE     := s390x
  32 STACK_SIZE      := 16384
  33 CHECKFLAGS      += -D__s390__ -D__s390x__
  34 endif
  35
  36 export LD_BFD
  37
  38 mflags-$(CONFIG_MARCH_G5)     := -march=g5
  39 mflags-$(CONFIG_MARCH_Z900)   := -march=z900
  40 mflags-$(CONFIG_MARCH_Z990)   := -march=z990
  41 mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
  42 mflags-$(CONFIG_MARCH_Z10)    := -march=z10
  43 mflags-$(CONFIG_MARCH_Z196)   := -march=z196
  44 mflags-$(CONFIG_MARCH_ZEC12)  := -march=zEC12
  45
  46 aflags-y += $(mflags-y)
  47 cflags-y += $(mflags-y)
  48
  49 cflags-$(CONFIG_MARCH_G5_TUNE)          += -mtune=g5
  50 cflags-$(CONFIG_MARCH_Z900_TUNE)        += -mtune=z900
  51 cflags-$(CONFIG_MARCH_Z990_TUNE)        += -mtune=z990
  52 cflags-$(CONFIG_MARCH_Z9_109_TUNE)      += -mtune=z9-109
  53 cflags-$(CONFIG_MARCH_Z10_TUNE)         += -mtune=z10
  54 cflags-$(CONFIG_MARCH_Z196_TUNE)        += -mtune=z196
  55 cflags-$(CONFIG_MARCH_ZEC12_TUNE)       += -mtune=zEC12
  56
  57 #KBUILD_IMAGE is necessary for make rpm
  58 KBUILD_IMAGE    :=arch/s390/boot/image
  59
  60 #
  61 # Prevent tail-call optimizations, to get clearer backtraces:
  62 #
  63 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
  64
  65 # old style option for packed stacks
  66 ifeq ($(call cc-option-yn,-mkernel-backchain),y)
  67 cflags-$(CONFIG_PACK_STACK)  += -mkernel-backchain -D__PACK_STACK
  68 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
  69 endif
  70
  71 # new style option for packed stacks
  72 ifeq ($(call cc-option-yn,-mpacked-stack),y)
  73 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
  74 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
  75 endif
  76
  77 ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
  78 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
  79 ifneq ($(call cc-option-yn,-mstack-size=8192),y)
  80 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
  81 endif
  82 endif
  83
  84 ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
  85 cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
  86 endif
  87
  88 KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
  89 KBUILD_CFLAGS   += -pipe -fno-strength-reduce -Wno-sign-compare
  90 KBUILD_AFLAGS   += $(aflags-y)
  91
  92 OBJCOPYFLAGS    := -O binary
  93
  94 head-y          := arch/s390/kernel/head.o
  95 head-y          += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o)
  96
  97 # See arch/s390/Kbuild for content of core part of the kernel
  98 core-y          += arch/s390/
  99
 100 libs-y          += arch/s390/lib/
 101 drivers-y       += drivers/s390/
 102
 103 # must be linked after kernel
 104 drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
 105
 106 boot            := arch/s390/boot
 107
 108 all: image bzImage
 109
 110 install: vmlinux
 111         $(Q)$(MAKE) $(build)=$(boot) $@
 112
 113 image bzImage: vmlinux
 114         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 115
 116 zfcpdump:
 117         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 118
 119 vdso_install:
 120 ifeq ($(CONFIG_64BIT),y)
 121         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
 122 endif
 123         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
 124
 125 archclean:
 126         $(Q)$(MAKE) $(clean)=$(boot)
 127
 128 # Don't use tabs in echo arguments
 129 define archhelp
 130   echo  '* image           - Kernel image for IPL ($(boot)/image)'
 131   echo  '* bzImage         - Compressed kernel image for IPL ($(boot)/bzImage)'
 132 endef