Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/bcm2385', 'spi/topic...
[sfrench/cifs-2.6.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 ifndef CONFIG_64BIT
17 LD_BFD          := elf32-s390
18 LDFLAGS         := -m elf_s390
19 KBUILD_CFLAGS   += -m31
20 KBUILD_AFLAGS   += -m31
21 UTS_MACHINE     := s390
22 STACK_SIZE      := 8192
23 CHECKFLAGS      += -D__s390__ -msize-long
24 else
25 LD_BFD          := elf64-s390
26 LDFLAGS         := -m elf64_s390
27 KBUILD_AFLAGS_MODULE += -fPIC
28 KBUILD_CFLAGS_MODULE += -fPIC
29 KBUILD_CFLAGS   += -m64
30 KBUILD_AFLAGS   += -m64
31 UTS_MACHINE     := s390x
32 STACK_SIZE      := 16384
33 CHECKFLAGS      += -D__s390__ -D__s390x__
34 endif
35
36 export LD_BFD
37
38 mflags-$(CONFIG_MARCH_G5)     := -march=g5
39 mflags-$(CONFIG_MARCH_Z900)   := -march=z900
40 mflags-$(CONFIG_MARCH_Z990)   := -march=z990
41 mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
42 mflags-$(CONFIG_MARCH_Z10)    := -march=z10
43 mflags-$(CONFIG_MARCH_Z196)   := -march=z196
44 mflags-$(CONFIG_MARCH_ZEC12)  := -march=zEC12
45 mflags-$(CONFIG_MARCH_Z13)   := -march=z13
46
47 aflags-y += $(mflags-y)
48 cflags-y += $(mflags-y)
49
50 cflags-$(CONFIG_MARCH_G5_TUNE)          += -mtune=g5
51 cflags-$(CONFIG_MARCH_Z900_TUNE)        += -mtune=z900
52 cflags-$(CONFIG_MARCH_Z990_TUNE)        += -mtune=z990
53 cflags-$(CONFIG_MARCH_Z9_109_TUNE)      += -mtune=z9-109
54 cflags-$(CONFIG_MARCH_Z10_TUNE)         += -mtune=z10
55 cflags-$(CONFIG_MARCH_Z196_TUNE)        += -mtune=z196
56 cflags-$(CONFIG_MARCH_ZEC12_TUNE)       += -mtune=zEC12
57 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
58
59 #KBUILD_IMAGE is necessary for make rpm
60 KBUILD_IMAGE    :=arch/s390/boot/image
61
62 #
63 # Prevent tail-call optimizations, to get clearer backtraces:
64 #
65 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
66
67 # old style option for packed stacks
68 ifeq ($(call cc-option-yn,-mkernel-backchain),y)
69 cflags-$(CONFIG_PACK_STACK)  += -mkernel-backchain -D__PACK_STACK
70 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
71 endif
72
73 # new style option for packed stacks
74 ifeq ($(call cc-option-yn,-mpacked-stack),y)
75 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
76 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
77 endif
78
79 ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
80 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
81 ifneq ($(call cc-option-yn,-mstack-size=8192),y)
82 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
83 endif
84 endif
85
86 ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
87 cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
88 endif
89
90 ifdef CONFIG_FUNCTION_TRACER
91 # make use of hotpatch feature if the compiler supports it
92 cc_hotpatch     := -mhotpatch=0,3
93 ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
94 CC_FLAGS_FTRACE := $(cc_hotpatch)
95 KBUILD_AFLAGS   += -DCC_USING_HOTPATCH
96 KBUILD_CFLAGS   += -DCC_USING_HOTPATCH
97 endif
98 endif
99
100 KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
101 KBUILD_CFLAGS   += -pipe -fno-strength-reduce -Wno-sign-compare
102 KBUILD_AFLAGS   += $(aflags-y)
103
104 OBJCOPYFLAGS    := -O binary
105
106 head-y          := arch/s390/kernel/head.o
107 head-y          += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o)
108
109 # See arch/s390/Kbuild for content of core part of the kernel
110 core-y          += arch/s390/
111
112 libs-y          += arch/s390/lib/
113 drivers-y       += drivers/s390/
114
115 # must be linked after kernel
116 drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
117
118 boot            := arch/s390/boot
119
120 all: image bzImage
121
122 install: vmlinux
123         $(Q)$(MAKE) $(build)=$(boot) $@
124
125 image bzImage: vmlinux
126         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
127
128 zfcpdump:
129         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
130
131 vdso_install:
132 ifeq ($(CONFIG_64BIT),y)
133         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
134 endif
135         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
136
137 archclean:
138         $(Q)$(MAKE) $(clean)=$(boot)
139
140 # Don't use tabs in echo arguments
141 define archhelp
142   echo  '* image           - Kernel image for IPL ($(boot)/image)'
143   echo  '* bzImage         - Compressed kernel image for IPL ($(boot)/bzImage)'
144 endef