linux/arch/s390/Makefile
<<
>>
Prefs
   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
  16ifndef CONFIG_64BIT
  17LDFLAGS         := -m elf_s390
  18KBUILD_CFLAGS   += -m31
  19KBUILD_AFLAGS   += -m31
  20UTS_MACHINE     := s390
  21STACK_SIZE      := 8192
  22CHECKFLAGS      += -D__s390__ -msize-long
  23else
  24LDFLAGS         := -m elf64_s390
  25MODFLAGS        += -fpic -D__PIC__
  26KBUILD_CFLAGS   += -m64
  27KBUILD_AFLAGS   += -m64
  28UTS_MACHINE     := s390x
  29STACK_SIZE      := 16384
  30CHECKFLAGS      += -D__s390__ -D__s390x__
  31endif
  32
  33cflags-$(CONFIG_MARCH_G5)   += $(call cc-option,-march=g5)
  34cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
  35cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
  36cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109)
  37
  38#KBUILD_IMAGE is necessary for make rpm
  39KBUILD_IMAGE    :=arch/s390/boot/image
  40
  41#
  42# Prevent tail-call optimizations, to get clearer backtraces:
  43#
  44cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
  45
  46# old style option for packed stacks
  47ifeq ($(call cc-option-yn,-mkernel-backchain),y)
  48cflags-$(CONFIG_PACK_STACK)  += -mkernel-backchain -D__PACK_STACK
  49aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
  50cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  51aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  52ifdef CONFIG_SMALL_STACK
  53STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  54endif
  55endif
  56
  57# new style option for packed stacks
  58ifeq ($(call cc-option-yn,-mpacked-stack),y)
  59cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
  60aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
  61cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  62aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK
  63ifdef CONFIG_SMALL_STACK
  64STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) )
  65endif
  66endif
  67
  68ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
  69cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
  70ifneq ($(call cc-option-yn,-mstack-size=8192),y)
  71cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
  72endif
  73endif
  74
  75ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
  76cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
  77cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE)
  78endif
  79
  80KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
  81KBUILD_CFLAGS   += -pipe -fno-strength-reduce -Wno-sign-compare
  82KBUILD_AFLAGS   += $(aflags-y)
  83
  84OBJCOPYFLAGS    := -O binary
  85LDFLAGS_vmlinux := -e start
  86
  87head-y          := arch/s390/kernel/head.o arch/s390/kernel/init_task.o
  88
  89core-y          += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
  90                   arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
  91libs-y          += arch/s390/lib/
  92drivers-y       += drivers/s390/
  93drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/
  94
  95# must be linked after kernel
  96drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
  97
  98boot            := arch/s390/boot
  99
 100all: image
 101
 102install: vmlinux
 103        $(Q)$(MAKE) $(build)=$(boot) $@
 104
 105image: vmlinux
 106        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 107
 108zfcpdump:
 109        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 110
 111archclean:
 112        $(Q)$(MAKE) $(clean)=$(boot)
 113
 114# Don't use tabs in echo arguments
 115define archhelp
 116  echo  '* image           - Kernel image for IPL ($(boot)/image)'
 117endef
 118