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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 Schwidefsky347a8dc2006-01-06 00:19:28 -080016ifndef CONFIG_64BIT
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010017LD_BFD := elf32-s390
Linus Torvalds1da177e2005-04-16 15:20:36 -070018LDFLAGS := -m elf_s390
Sam Ravnborga0f97e02007-10-14 22:21:35 +020019KBUILD_CFLAGS += -m31
Sam Ravnborg222d3942007-10-15 21:59:31 +020020KBUILD_AFLAGS += -m31
Linus Torvalds1da177e2005-04-16 15:20:36 -070021UTS_MACHINE := s390
22STACK_SIZE := 8192
Al Viro22bb3e92007-07-15 21:00:41 +010023CHECKFLAGS += -D__s390__ -msize-long
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -080024else
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010025LD_BFD := elf64-s390
Linus Torvalds1da177e2005-04-16 15:20:36 -070026LDFLAGS := -m elf64_s390
Martin Schwidefsky7bdc2292013-01-11 15:26:01 +010027KBUILD_AFLAGS_MODULE += -fPIC
28KBUILD_CFLAGS_MODULE += -fPIC
Sam Ravnborga0f97e02007-10-14 22:21:35 +020029KBUILD_CFLAGS += -m64
Sam Ravnborg222d3942007-10-15 21:59:31 +020030KBUILD_AFLAGS += -m64
Linus Torvalds1da177e2005-04-16 15:20:36 -070031UTS_MACHINE := s390x
32STACK_SIZE := 16384
viro@ZenIV.linux.org.ukd310a352005-09-09 16:56:05 +010033CHECKFLAGS += -D__s390__ -D__s390x__
Linus Torvalds1da177e2005-04-16 15:20:36 -070034endif
35
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010036export LD_BFD
37
Heiko Carstens0f1b1ff2014-08-14 16:06:02 +020038mflags-$(CONFIG_MARCH_G5) := -march=g5
39mflags-$(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 += $(mflags-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
Heiko Carstens1db9e052013-10-30 12:12:50 +010049cflags-$(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
Christian Borntraeger1681ced2006-12-04 15:40:49 +010057#KBUILD_IMAGE is necessary for make rpm
58KBUILD_IMAGE :=arch/s390/boot/image
59
Heiko Carstenscbbd1fa2006-07-03 00:24:38 -070060#
61# Prevent tail-call optimizations, to get clearer backtraces:
62#
63cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065# old style option for packed stacks
66ifeq ($(call cc-option-yn,-mkernel-backchain),y)
67cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK
68aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
Linus Torvalds1da177e2005-04-16 15:20:36 -070069endif
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-$(CONFIG_PACK_STACK) += -D__PACK_STACK
Linus Torvalds1da177e2005-04-16 15:20:36 -070075endif
76
77ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
78cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
Martin Schwidefskybe796282007-04-27 16:01:46 +020079ifneq ($(call cc-option-yn,-mstack-size=8192),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070080cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
81endif
Martin Schwidefskybe796282007-04-27 16:01:46 +020082endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
84ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
Jan Glauber2c190da2011-03-15 17:08:19 +010085cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
Linus Torvalds1da177e2005-04-16 15:20:36 -070086endif
87
Sam Ravnborga0f97e02007-10-14 22:21:35 +020088KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
89KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
Sam Ravnborg222d3942007-10-15 21:59:31 +020090KBUILD_AFLAGS += $(aflags-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92OBJCOPYFLAGS := -O binary
Linus Torvalds1da177e2005-04-16 15:20:36 -070093
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +010094head-y := arch/s390/kernel/head.o
95head-y += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o)
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Heiko Carstens01485942010-10-25 16:10:09 +020097# See arch/s390/Kbuild for content of core part of the kernel
98core-y += arch/s390/
Hans-Joachim Picht155af2f2009-06-16 10:30:52 +020099
Michael Holzheu4562c9f2007-02-21 10:55:46 +0100100libs-y += arch/s390/lib/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101drivers-y += drivers/s390/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103# must be linked after kernel
104drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
105
Michael Holzheu4562c9f2007-02-21 10:55:46 +0100106boot := arch/s390/boot
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100108all: image bzImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
110install: vmlinux
111 $(Q)$(MAKE) $(build)=$(boot) $@
112
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100113image bzImage: vmlinux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
115
Michael Holzheu411ed322007-04-27 16:01:49 +0200116zfcpdump:
117 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
118
Hendrik Bruecknerf3cb31e2010-05-17 10:00:09 +0200119vdso_install:
120ifeq ($(CONFIG_64BIT),y)
121 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
122endif
123 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125archclean:
126 $(Q)$(MAKE) $(clean)=$(boot)
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128# Don't use tabs in echo arguments
129define archhelp
130 echo '* image - Kernel image for IPL ($(boot)/image)'
Martin Schwidefsky1844c9b2010-02-26 22:37:53 +0100131 echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132endef