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