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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
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
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010016LD_BFD := elf64-s390
Linus Torvalds1da177e2005-04-16 15:20:36 -070017LDFLAGS := -m elf64_s390
Martin Schwidefsky7bdc2292013-01-11 15:26:01 +010018KBUILD_AFLAGS_MODULE += -fPIC
19KBUILD_CFLAGS_MODULE += -fPIC
Sam Ravnborga0f97e02007-10-14 22:21:35 +020020KBUILD_CFLAGS += -m64
Sam Ravnborg222d3942007-10-15 21:59:31 +020021KBUILD_AFLAGS += -m64
Linus Torvalds1da177e2005-04-16 15:20:36 -070022UTS_MACHINE := s390x
23STACK_SIZE := 16384
viro@ZenIV.linux.org.ukd310a352005-09-09 16:56:05 +010024CHECKFLAGS += -D__s390__ -D__s390x__
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010026export LD_BFD
27
Heiko Carstens0f1b1ff2014-08-14 16:06:02 +020028mflags-$(CONFIG_MARCH_Z900) := -march=z900
29mflags-$(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
Martin Schwidefskyf8b2dcb2015-01-14 17:50:19 +010034mflags-$(CONFIG_MARCH_Z13) := -march=z13
Heiko Carstens0f1b1ff2014-08-14 16:06:02 +020035
Martin Schwidefsky22362a02015-07-08 10:20:04 +020036export CC_FLAGS_MARCH := $(mflags-y)
37
Heiko Carstens0f1b1ff2014-08-14 16:06:02 +020038aflags-y += $(mflags-y)
39cflags-y += $(mflags-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Heiko Carstens1db9e052013-10-30 12:12:50 +010041cflags-$(CONFIG_MARCH_Z900_TUNE) += -mtune=z900
42cflags-$(CONFIG_MARCH_Z990_TUNE) += -mtune=z990
43cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109
44cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10
45cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196
46cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12
Martin Schwidefskyf8b2dcb2015-01-14 17:50:19 +010047cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
Heiko Carstens1db9e052013-10-30 12:12:50 +010048
Christian Borntraeger1681ced2006-12-04 15:40:49 +010049#KBUILD_IMAGE is necessary for make rpm
50KBUILD_IMAGE :=arch/s390/boot/image
51
Heiko Carstenscbbd1fa2006-07-03 00:24:38 -070052#
53# Prevent tail-call optimizations, to get clearer backtraces:
54#
55cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
56
Linus Torvalds1da177e2005-04-16 15:20:36 -070057# old style option for packed stacks
58ifeq ($(call cc-option-yn,-mkernel-backchain),y)
59cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
60aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
Linus Torvalds1da177e2005-04-16 15:20:36 -070061endif
62
63# new style option for packed stacks
64ifeq ($(call cc-option-yn,-mpacked-stack),y)
65cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
66aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
Linus Torvalds1da177e2005-04-16 15:20:36 -070067endif
68
69ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
70cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
Martin Schwidefskybe796282007-04-27 16:01:46 +020071ifneq ($(call cc-option-yn,-mstack-size=8192),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070072cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
73endif
Martin Schwidefskybe796282007-04-27 16:01:46 +020074endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
76ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
Jan Glauber2c190da2011-03-15 17:08:19 +010077cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
Linus Torvalds1da177e2005-04-16 15:20:36 -070078endif
79
Heiko Carstense6d60b32015-01-09 13:08:28 +010080ifdef CONFIG_FUNCTION_TRACER
81# make use of hotpatch feature if the compiler supports it
82cc_hotpatch := -mhotpatch=0,3
83ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
84CC_FLAGS_FTRACE := $(cc_hotpatch)
85KBUILD_AFLAGS += -DCC_USING_HOTPATCH
86KBUILD_CFLAGS += -DCC_USING_HOTPATCH
87endif
88endif
89
Sam Ravnborga0f97e02007-10-14 22:21:35 +020090KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
91KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
Sam Ravnborg222d3942007-10-15 21:59:31 +020092KBUILD_AFLAGS += $(aflags-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070093
94OBJCOPYFLAGS := -O binary
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010096head-y := arch/s390/kernel/head.o
Heiko Carstens5a798592015-02-12 13:08:27 +010097head-y += arch/s390/kernel/head64.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070098
Heiko Carstens01485942010-10-25 16:10:09 +020099# See arch/s390/Kbuild for content of core part of the kernel
100core-y += arch/s390/
Hans-Joachim Picht155af2f2009-06-16 10:30:52 +0200101
Michael Holzheu4562c9f2007-02-21 10:55:46 +0100102libs-y += arch/s390/lib/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103drivers-y += drivers/s390/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
105# must be linked after kernel
106drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
107
Michael Holzheu4562c9f2007-02-21 10:55:46 +0100108boot := arch/s390/boot
Heiko Carstensc30f6822015-02-02 07:08:44 +0100109tools := arch/s390/tools
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100111all: image bzImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
113install: vmlinux
114 $(Q)$(MAKE) $(build)=$(boot) $@
115
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100116image bzImage: vmlinux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
118
Michael Holzheu411ed322007-04-27 16:01:49 +0200119zfcpdump:
120 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
121
Hendrik Bruecknerf3cb31e2010-05-17 10:00:09 +0200122vdso_install:
Hendrik Bruecknerf3cb31e2010-05-17 10:00:09 +0200123 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
Hendrik Bruecknerf3cb31e2010-05-17 10:00:09 +0200124 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126archclean:
127 $(Q)$(MAKE) $(clean)=$(boot)
Heiko Carstensc30f6822015-02-02 07:08:44 +0100128 $(Q)$(MAKE) $(clean)=$(tools)
129
130archprepare:
131 $(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133# Don't use tabs in echo arguments
134define archhelp
135 echo '* image - Kernel image for IPL ($(boot)/image)'
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100136 echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)'
Michael Holzheub8eecf32015-11-25 11:54:36 +0100137 echo ' install - Install kernel using'
138 echo ' (your) ~/bin/$(INSTALLKERNEL) or'
139 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
140 echo ' install to $$(INSTALL_PATH)'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141endef