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 38mflags-$(CONFIG_MARCH_G5) := -march=g5 39mflags-$(CONFIG_MARCH_Z900) := -march=z900 40mflags-$(CONFIG_MARCH_Z990) := -march=z990 41mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109 42mflags-$(CONFIG_MARCH_Z10) := -march=z10 43mflags-$(CONFIG_MARCH_Z196) := -march=z196 44mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 45 46aflags-y += $(mflags-y) 47cflags-y += $(mflags-y) 48 49cflags-$(CONFIG_MARCH_G5_TUNE) += -mtune=g5 50cflags-$(CONFIG_MARCH_Z900_TUNE) += -mtune=z900 51cflags-$(CONFIG_MARCH_Z990_TUNE) += -mtune=z990 52cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109 53cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10 54cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196 55cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 56 57#KBUILD_IMAGE is necessary for make rpm 58KBUILD_IMAGE :=arch/s390/boot/image 59 60# 61# Prevent tail-call optimizations, to get clearer backtraces: 62# 63cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls 64 65# old style option for packed stacks 66ifeq ($(call cc-option-yn,-mkernel-backchain),y) 67cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK 68aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 69endif 70 71# new style option for packed stacks 72ifeq ($(call cc-option-yn,-mpacked-stack),y) 73cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK 74aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 75endif 76 77ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) 78cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) 79ifneq ($(call cc-option-yn,-mstack-size=8192),y) 80cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) 81endif 82endif 83 84ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) 85cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack 86endif 87 88KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) 89KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare 90KBUILD_AFLAGS += $(aflags-y) 91 92OBJCOPYFLAGS := -O binary 93 94head-y := arch/s390/kernel/head.o 95head-y += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o) 96 97# See arch/s390/Kbuild for content of core part of the kernel 98core-y += arch/s390/ 99 100libs-y += arch/s390/lib/ 101drivers-y += drivers/s390/ 102 103# must be linked after kernel 104drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ 105 106boot := arch/s390/boot 107 108all: image bzImage 109 110install: vmlinux 111 $(Q)$(MAKE) $(build)=$(boot) $@ 112 113image bzImage: vmlinux 114 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 115 116zfcpdump: 117 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 118 119vdso_install: 120ifeq ($(CONFIG_64BIT),y) 121 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ 122endif 123 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ 124 125archclean: 126 $(Q)$(MAKE) $(clean)=$(boot) 127 128# Don't use tabs in echo arguments 129define archhelp 130 echo '* image - Kernel image for IPL ($(boot)/image)' 131 echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' 132endef 133