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 16LD_BFD := elf64-s390 17LDFLAGS := -m elf64_s390 18KBUILD_AFLAGS_MODULE += -fPIC 19KBUILD_CFLAGS_MODULE += -fPIC 20KBUILD_CFLAGS += -m64 21KBUILD_AFLAGS += -m64 22UTS_MACHINE := s390x 23STACK_SIZE := 16384 24CHECKFLAGS += -D__s390__ -D__s390x__ 25 26export LD_BFD 27 28mflags-$(CONFIG_MARCH_Z900) := -march=z900 29mflags-$(CONFIG_MARCH_Z990) := -march=z990 30mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109 31mflags-$(CONFIG_MARCH_Z10) := -march=z10 32mflags-$(CONFIG_MARCH_Z196) := -march=z196 33mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 34mflags-$(CONFIG_MARCH_Z13) := -march=z13 35mflags-$(CONFIG_MARCH_Z14) := -march=z14 36 37export CC_FLAGS_MARCH := $(mflags-y) 38 39aflags-y += $(mflags-y) 40cflags-y += $(mflags-y) 41 42cflags-$(CONFIG_MARCH_Z900_TUNE) += -mtune=z900 43cflags-$(CONFIG_MARCH_Z990_TUNE) += -mtune=z990 44cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109 45cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10 46cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196 47cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 48cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 49cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14 50 51cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include 52 53#KBUILD_IMAGE is necessary for make rpm 54KBUILD_IMAGE :=arch/s390/boot/image 55 56# 57# Prevent tail-call optimizations, to get clearer backtraces: 58# 59cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls 60 61# old style option for packed stacks 62ifeq ($(call cc-option-yn,-mkernel-backchain),y) 63cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK 64aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 65endif 66 67# new style option for packed stacks 68ifeq ($(call cc-option-yn,-mpacked-stack),y) 69cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK 70aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 71endif 72 73ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) 74cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) 75ifneq ($(call cc-option-yn,-mstack-size=8192),y) 76cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) 77endif 78endif 79 80ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) 81cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack 82endif 83 84ifdef CONFIG_FUNCTION_TRACER 85# make use of hotpatch feature if the compiler supports it 86cc_hotpatch := -mhotpatch=0,3 87ifeq ($(call cc-option-yn,$(cc_hotpatch)),y) 88CC_FLAGS_FTRACE := $(cc_hotpatch) 89KBUILD_AFLAGS += -DCC_USING_HOTPATCH 90KBUILD_CFLAGS += -DCC_USING_HOTPATCH 91endif 92endif 93 94KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) 95KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare 96KBUILD_AFLAGS += $(aflags-y) 97 98OBJCOPYFLAGS := -O binary 99 100head-y := arch/s390/kernel/head.o 101head-y += arch/s390/kernel/head64.o 102 103# See arch/s390/Kbuild for content of core part of the kernel 104core-y += arch/s390/ 105 106libs-y += arch/s390/lib/ 107drivers-y += drivers/s390/ 108 109# must be linked after kernel 110drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ 111 112boot := arch/s390/boot 113tools := arch/s390/tools 114 115all: image bzImage 116 117install: vmlinux 118 $(Q)$(MAKE) $(build)=$(boot) $@ 119 120image bzImage: vmlinux 121 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 122 123zfcpdump: 124 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 125 126vdso_install: 127 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ 128 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ 129 130archclean: 131 $(Q)$(MAKE) $(clean)=$(boot) 132 $(Q)$(MAKE) $(clean)=$(tools) 133 134archprepare: 135 $(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h 136 137# Don't use tabs in echo arguments 138define archhelp 139 echo '* image - Kernel image for IPL ($(boot)/image)' 140 echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' 141 echo ' install - Install kernel using' 142 echo ' (your) ~/bin/$(INSTALLKERNEL) or' 143 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 144 echo ' install to $$(INSTALL_PATH)' 145endef 146