10b73214fSGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds# 31da177e4SLinus Torvalds# s390/Makefile 41da177e4SLinus Torvalds# 51da177e4SLinus Torvalds# This file is included by the global makefile so that you can add your own 61da177e4SLinus Torvalds# architecture-specific flags and dependencies. Remember to do have actions 71da177e4SLinus Torvalds# for "archclean" and "archdep" for cleaning up and making dependencies for 81da177e4SLinus Torvalds# this architecture 91da177e4SLinus Torvalds# 101da177e4SLinus Torvalds# Copyright (C) 1994 by Linus Torvalds 111da177e4SLinus Torvalds# 121da177e4SLinus Torvalds 131844c9bcSMartin SchwidefskyLD_BFD := elf64-s390 141da177e4SLinus TorvaldsLDFLAGS := -m elf64_s390 157bdc229fSMartin SchwidefskyKBUILD_AFLAGS_MODULE += -fPIC 167bdc229fSMartin SchwidefskyKBUILD_CFLAGS_MODULE += -fPIC 17a0f97e06SSam RavnborgKBUILD_CFLAGS += -m64 18222d394dSSam RavnborgKBUILD_AFLAGS += -m64 191da177e4SLinus TorvaldsUTS_MACHINE := s390x 201da177e4SLinus TorvaldsSTACK_SIZE := 16384 213b42c17aSLuc Van OostenryckCHECKFLAGS += -D__s390__ -D__s390x__ -mbig-endian 221da177e4SLinus Torvalds 231844c9bcSMartin Schwidefskyexport LD_BFD 241844c9bcSMartin Schwidefsky 250f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_Z900) := -march=z900 260f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_Z990) := -march=z990 270f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109 280f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_Z10) := -march=z10 290f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_Z196) := -march=z196 300f1b1ff5SHeiko Carstensmflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 31f8b2dcbdSMartin Schwidefskymflags-$(CONFIG_MARCH_Z13) := -march=z13 326997c323SMartin Schwidefskymflags-$(CONFIG_MARCH_Z14) := -march=z14 330f1b1ff5SHeiko Carstens 3422362a0eSMartin Schwidefskyexport CC_FLAGS_MARCH := $(mflags-y) 3522362a0eSMartin Schwidefsky 360f1b1ff5SHeiko Carstensaflags-y += $(mflags-y) 370f1b1ff5SHeiko Carstenscflags-y += $(mflags-y) 381da177e4SLinus Torvalds 391db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_Z900_TUNE) += -mtune=z900 401db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_Z990_TUNE) += -mtune=z990 411db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109 421db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10 431db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196 441db9e051SHeiko Carstenscflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 45f8b2dcbdSMartin Schwidefskycflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 466997c323SMartin Schwidefskycflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14 471db9e051SHeiko Carstens 48c783b91eSMartin Schwidefskycflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include 49c783b91eSMartin Schwidefsky 50cbbd1fa7SHeiko Carstens# 51cbbd1fa7SHeiko Carstens# Prevent tail-call optimizations, to get clearer backtraces: 52cbbd1fa7SHeiko Carstens# 53cbbd1fa7SHeiko Carstenscflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls 54cbbd1fa7SHeiko Carstens 551da177e4SLinus Torvalds# old style option for packed stacks 561da177e4SLinus Torvaldsifeq ($(call cc-option-yn,-mkernel-backchain),y) 571da177e4SLinus Torvaldscflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK 581da177e4SLinus Torvaldsaflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 591da177e4SLinus Torvaldsendif 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds# new style option for packed stacks 621da177e4SLinus Torvaldsifeq ($(call cc-option-yn,-mpacked-stack),y) 631da177e4SLinus Torvaldscflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK 641da177e4SLinus Torvaldsaflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK 651da177e4SLinus Torvaldsendif 661da177e4SLinus Torvalds 671da177e4SLinus Torvaldsifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) 681da177e4SLinus Torvaldscflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) 69be796285SMartin Schwidefskyifneq ($(call cc-option-yn,-mstack-size=8192),y) 701da177e4SLinus Torvaldscflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) 711da177e4SLinus Torvaldsendif 72be796285SMartin Schwidefskyendif 731da177e4SLinus Torvalds 741da177e4SLinus Torvaldsifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) 752c190da4SJan Glaubercflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack 761da177e4SLinus Torvaldsendif 771da177e4SLinus Torvalds 78f19fbd5eSMartin Schwidefskyifdef CONFIG_EXPOLINE 79f19fbd5eSMartin Schwidefsky ifeq ($(call cc-option-yn,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),y) 80f19fbd5eSMartin Schwidefsky CC_FLAGS_EXPOLINE := -mindirect-branch=thunk 81f19fbd5eSMartin Schwidefsky CC_FLAGS_EXPOLINE += -mfunction-return=thunk 82f19fbd5eSMartin Schwidefsky CC_FLAGS_EXPOLINE += -mindirect-branch-table 83f19fbd5eSMartin Schwidefsky export CC_FLAGS_EXPOLINE 84f19fbd5eSMartin Schwidefsky cflags-y += $(CC_FLAGS_EXPOLINE) 85f19fbd5eSMartin Schwidefsky endif 86f19fbd5eSMartin Schwidefskyendif 87f19fbd5eSMartin Schwidefsky 88e6d60b36SHeiko Carstensifdef CONFIG_FUNCTION_TRACER 89e6d60b36SHeiko Carstens# make use of hotpatch feature if the compiler supports it 90e6d60b36SHeiko Carstenscc_hotpatch := -mhotpatch=0,3 91e6d60b36SHeiko Carstensifeq ($(call cc-option-yn,$(cc_hotpatch)),y) 92e6d60b36SHeiko CarstensCC_FLAGS_FTRACE := $(cc_hotpatch) 93e6d60b36SHeiko CarstensKBUILD_AFLAGS += -DCC_USING_HOTPATCH 94e6d60b36SHeiko CarstensKBUILD_CFLAGS += -DCC_USING_HOTPATCH 95e6d60b36SHeiko Carstensendif 96e6d60b36SHeiko Carstensendif 97e6d60b36SHeiko Carstens 987bceec4eSHendrik Brueckner# Test CFI features of binutils 997bceec4eSHendrik Bruecknercfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1) 1007bceec4eSHendrik Brueckner 101a0f97e06SSam RavnborgKBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) 102a0f97e06SSam RavnborgKBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare 1037bceec4eSHendrik BruecknerKBUILD_CFLAGS += -fno-asynchronous-unwind-tables $(cfi) 1047bceec4eSHendrik BruecknerKBUILD_AFLAGS += $(aflags-y) $(cfi) 1051da177e4SLinus Torvalds 1061da177e4SLinus TorvaldsOBJCOPYFLAGS := -O binary 1071da177e4SLinus Torvalds 1081844c9bcSMartin Schwidefskyhead-y := arch/s390/kernel/head.o 1095a79859aSHeiko Carstenshead-y += arch/s390/kernel/head64.o 1101da177e4SLinus Torvalds 11101485943SHeiko Carstens# See arch/s390/Kbuild for content of core part of the kernel 11201485943SHeiko Carstenscore-y += arch/s390/ 113155af2f9SHans-Joachim Picht 1144562c9ffSMichael Holzheulibs-y += arch/s390/lib/ 1151da177e4SLinus Torvaldsdrivers-y += drivers/s390/ 1161da177e4SLinus Torvalds 1171da177e4SLinus Torvalds# must be linked after kernel 1181da177e4SLinus Torvaldsdrivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ 1191da177e4SLinus Torvalds 1204562c9ffSMichael Holzheuboot := arch/s390/boot 1215c75824dSHendrik Bruecknersyscalls := arch/s390/kernel/syscalls 122c30f6828SHeiko Carstenstools := arch/s390/tools 1231da177e4SLinus Torvalds 1241844c9bcSMartin Schwidefskyall: image bzImage 1251da177e4SLinus Torvalds 126e0aa099cSVasily Gorbik#KBUILD_IMAGE is necessary for packaging targets like rpm-pkg, deb-pkg... 127e0aa099cSVasily GorbikKBUILD_IMAGE := $(boot)/bzImage 128e0aa099cSVasily Gorbik 1291da177e4SLinus Torvaldsinstall: vmlinux 1301da177e4SLinus Torvalds $(Q)$(MAKE) $(build)=$(boot) $@ 1311da177e4SLinus Torvalds 1321844c9bcSMartin Schwidefskyimage bzImage: vmlinux 1331da177e4SLinus Torvalds $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 1341da177e4SLinus Torvalds 135411ed322SMichael Holzheuzfcpdump: 136411ed322SMichael Holzheu $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 137411ed322SMichael Holzheu 138f3cb31e4SHendrik Bruecknervdso_install: 139f3cb31e4SHendrik Brueckner $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ 140f3cb31e4SHendrik Brueckner $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ 141f3cb31e4SHendrik Brueckner 1421da177e4SLinus Torvaldsarchclean: 1431da177e4SLinus Torvalds $(Q)$(MAKE) $(clean)=$(boot) 144c30f6828SHeiko Carstens $(Q)$(MAKE) $(clean)=$(tools) 145c30f6828SHeiko Carstens 1465c75824dSHendrik Bruecknerarchheaders: 1475c75824dSHendrik Brueckner $(Q)$(MAKE) $(build)=$(syscalls) uapi 1485c75824dSHendrik Brueckner 149c30f6828SHeiko Carstensarchprepare: 1505c75824dSHendrik Brueckner $(Q)$(MAKE) $(build)=$(syscalls) kapi 1517fbf8315SHendrik Brueckner $(Q)$(MAKE) $(build)=$(tools) kapi 1521da177e4SLinus Torvalds 1531da177e4SLinus Torvalds# Don't use tabs in echo arguments 1541da177e4SLinus Torvaldsdefine archhelp 1551da177e4SLinus Torvalds echo '* image - Kernel image for IPL ($(boot)/image)' 1561844c9bcSMartin Schwidefsky echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' 157b8eecf36SMichael Holzheu echo ' install - Install kernel using' 158b8eecf36SMichael Holzheu echo ' (your) ~/bin/$(INSTALLKERNEL) or' 159b8eecf36SMichael Holzheu echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 160b8eecf36SMichael Holzheu echo ' install to $$(INSTALL_PATH)' 1611da177e4SLinus Torvaldsendef 162