#
# s390/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
#
LD_BFD := elf64-s390
LDFLAGS := -m elf64_s390
KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
KBUILD_CFLAGS += -m64
KBUILD_AFLAGS += -m64
UTS_MACHINE := s390x
STACK_SIZE := 16384
CHECKFLAGS += -D__s390__ -D__s390x__
export LD_BFD
mflags-$([31mCONFIG_MARCH_Z900[0m) := -march=z900
mflags-$([31mCONFIG_MARCH_Z990[0m) := -march=z990
mflags-$([31mCONFIG_MARCH_Z9_109[0m) := -march=z9-109
mflags-$([31mCONFIG_MARCH_Z10[0m) := -march=z10
mflags-$([31mCONFIG_MARCH_Z196[0m) := -march=z196
mflags-$([31mCONFIG_MARCH_ZEC12[0m) := -march=zEC12
mflags-$([31mCONFIG_MARCH_Z13[0m) := -march=z13
export CC_FLAGS_MARCH := $(mflags-y)
aflags-y += $(mflags-y)
cflags-y += $(mflags-y)
cflags-$([31mCONFIG_MARCH_Z900_TUNE[0m) += -mtune=z900
cflags-$([31mCONFIG_MARCH_Z990_TUNE[0m) += -mtune=z990
cflags-$([31mCONFIG_MARCH_Z9_109_TUNE[0m) += -mtune=z9-109
cflags-$([31mCONFIG_MARCH_Z10_TUNE[0m) += -mtune=z10
cflags-$([31mCONFIG_MARCH_Z196_TUNE[0m) += -mtune=z196
cflags-$([31mCONFIG_MARCH_ZEC12_TUNE[0m) += -mtune=zEC12
cflags-$([31mCONFIG_MARCH_Z13_TUNE[0m) += -mtune=z13
cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
#KBUILD_IMAGE is necessary for make rpm
KBUILD_IMAGE :=arch/s390/boot/image
#
# Prevent tail-call optimizations, to get clearer backtraces:
#
cflags-$([31mCONFIG_FRAME_POINTER[0m) += -fno-optimize-sibling-calls
# old style option for packed stacks
ifeq ($(call cc-option-yn,-mkernel-backchain),y)
cflags-$([31mCONFIG_PACK_STACK[0m) += -mkernel-backchain -D__PACK_STACK
aflags-$([31mCONFIG_PACK_STACK[0m) += -D__PACK_STACK
endif
# new style option for packed stacks
ifeq ($(call cc-option-yn,-mpacked-stack),y)
cflags-$([31mCONFIG_PACK_STACK[0m) += -mpacked-stack -D__PACK_STACK
aflags-$([31mCONFIG_PACK_STACK[0m) += -D__PACK_STACK
endif
ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
cflags-$([31mCONFIG_CHECK_STACK[0m) += -mstack-size=$(STACK_SIZE)
ifneq ($(call cc-option-yn,-mstack-size=8192),y)
cflags-$([31mCONFIG_CHECK_STACK[0m) += -mstack-guard=$([31mCONFIG_STACK_GUARD[0m)
endif
endif
ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
cflags-$([31mCONFIG_WARN_DYNAMIC_STACK[0m) += -mwarn-dynamicstack
endif
ifdef [31mCONFIG_FUNCTION_TRACER[0m
# make use of hotpatch feature if the compiler supports it
cc_hotpatch := -mhotpatch=0,3
ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
CC_FLAGS_FTRACE := $(cc_hotpatch)
KBUILD_AFLAGS += -DCC_USING_HOTPATCH
KBUILD_CFLAGS += -DCC_USING_HOTPATCH
endif
endif
KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
KBUILD_AFLAGS += $(aflags-y)
OBJCOPYFLAGS := -O binary
head-y := arch/s390/kernel/head.o
head-y += arch/s390/kernel/head64.o
# See arch/s390/Kbuild for content of core part of the kernel
core-y += arch/s390/
libs-y += arch/s390/lib/
drivers-y += drivers/s390/
# must be linked after kernel
drivers-$([31mCONFIG_OPROFILE[0m) += arch/s390/oprofile/
boot := arch/s390/boot
tools := arch/s390/tools
all: image bzImage
install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
image bzImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
zfcpdump:
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
vdso_install:
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=$(tools)
archprepare:
$(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h
# Don't use tabs in echo arguments
define archhelp
echo '* image - Kernel image for IPL ($(boot)/image)'
echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/$(INSTALLKERNEL) or'
echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
echo ' install to $$(INSTALL_PATH)'
endef