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Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
[karo-tx-linux.git] / arch / s390 / Makefile
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
16 LD_BFD          := elf64-s390
17 LDFLAGS         := -m elf64_s390
18 KBUILD_AFLAGS_MODULE += -fPIC
19 KBUILD_CFLAGS_MODULE += -fPIC
20 KBUILD_CFLAGS   += -m64
21 KBUILD_AFLAGS   += -m64
22 UTS_MACHINE     := s390x
23 STACK_SIZE      := 16384
24 CHECKFLAGS      += -D__s390__ -D__s390x__
25
26 export LD_BFD
27
28 mflags-$(CONFIG_MARCH_Z900)   := -march=z900
29 mflags-$(CONFIG_MARCH_Z990)   := -march=z990
30 mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
31 mflags-$(CONFIG_MARCH_Z10)    := -march=z10
32 mflags-$(CONFIG_MARCH_Z196)   := -march=z196
33 mflags-$(CONFIG_MARCH_ZEC12)  := -march=zEC12
34 mflags-$(CONFIG_MARCH_Z13)   := -march=z13
35
36 export CC_FLAGS_MARCH := $(mflags-y)
37
38 aflags-y += $(mflags-y)
39 cflags-y += $(mflags-y)
40
41 cflags-$(CONFIG_MARCH_Z900_TUNE)        += -mtune=z900
42 cflags-$(CONFIG_MARCH_Z990_TUNE)        += -mtune=z990
43 cflags-$(CONFIG_MARCH_Z9_109_TUNE)      += -mtune=z9-109
44 cflags-$(CONFIG_MARCH_Z10_TUNE)         += -mtune=z10
45 cflags-$(CONFIG_MARCH_Z196_TUNE)        += -mtune=z196
46 cflags-$(CONFIG_MARCH_ZEC12_TUNE)       += -mtune=zEC12
47 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
48
49 #KBUILD_IMAGE is necessary for make rpm
50 KBUILD_IMAGE    :=arch/s390/boot/image
51
52 #
53 # Prevent tail-call optimizations, to get clearer backtraces:
54 #
55 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
56
57 # old style option for packed stacks
58 ifeq ($(call cc-option-yn,-mkernel-backchain),y)
59 cflags-$(CONFIG_PACK_STACK)  += -mkernel-backchain -D__PACK_STACK
60 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
61 endif
62
63 # new style option for packed stacks
64 ifeq ($(call cc-option-yn,-mpacked-stack),y)
65 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
66 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
67 endif
68
69 ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
70 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
71 ifneq ($(call cc-option-yn,-mstack-size=8192),y)
72 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
73 endif
74 endif
75
76 ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
77 cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
78 endif
79
80 ifdef CONFIG_FUNCTION_TRACER
81 # make use of hotpatch feature if the compiler supports it
82 cc_hotpatch     := -mhotpatch=0,3
83 ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
84 CC_FLAGS_FTRACE := $(cc_hotpatch)
85 KBUILD_AFLAGS   += -DCC_USING_HOTPATCH
86 KBUILD_CFLAGS   += -DCC_USING_HOTPATCH
87 endif
88 endif
89
90 KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
91 KBUILD_CFLAGS   += -pipe -fno-strength-reduce -Wno-sign-compare
92 KBUILD_AFLAGS   += $(aflags-y)
93
94 OBJCOPYFLAGS    := -O binary
95
96 head-y          := arch/s390/kernel/head.o
97 head-y          += arch/s390/kernel/head64.o
98
99 # See arch/s390/Kbuild for content of core part of the kernel
100 core-y          += arch/s390/
101
102 libs-y          += arch/s390/lib/
103 drivers-y       += drivers/s390/
104
105 # must be linked after kernel
106 drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
107
108 boot            := arch/s390/boot
109
110 all: image bzImage
111
112 install: vmlinux
113         $(Q)$(MAKE) $(build)=$(boot) $@
114
115 image bzImage: vmlinux
116         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
117
118 zfcpdump:
119         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
120
121 vdso_install:
122         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
123         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
124
125 archclean:
126         $(Q)$(MAKE) $(clean)=$(boot)
127
128 # Don't use tabs in echo arguments
129 define archhelp
130   echo  '* image           - Kernel image for IPL ($(boot)/image)'
131   echo  '* bzImage         - Compressed kernel image for IPL ($(boot)/bzImage)'
132 endef