Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / 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 aflags-y += $(mflags-y)
37 cflags-y += $(mflags-y)
38
39 cflags-$(CONFIG_MARCH_Z900_TUNE)        += -mtune=z900
40 cflags-$(CONFIG_MARCH_Z990_TUNE)        += -mtune=z990
41 cflags-$(CONFIG_MARCH_Z9_109_TUNE)      += -mtune=z9-109
42 cflags-$(CONFIG_MARCH_Z10_TUNE)         += -mtune=z10
43 cflags-$(CONFIG_MARCH_Z196_TUNE)        += -mtune=z196
44 cflags-$(CONFIG_MARCH_ZEC12_TUNE)       += -mtune=zEC12
45 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
46
47 #KBUILD_IMAGE is necessary for make rpm
48 KBUILD_IMAGE    :=arch/s390/boot/image
49
50 #
51 # Prevent tail-call optimizations, to get clearer backtraces:
52 #
53 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
54
55 # old style option for packed stacks
56 ifeq ($(call cc-option-yn,-mkernel-backchain),y)
57 cflags-$(CONFIG_PACK_STACK)  += -mkernel-backchain -D__PACK_STACK
58 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
59 endif
60
61 # new style option for packed stacks
62 ifeq ($(call cc-option-yn,-mpacked-stack),y)
63 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
64 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
65 endif
66
67 ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
68 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
69 ifneq ($(call cc-option-yn,-mstack-size=8192),y)
70 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
71 endif
72 endif
73
74 ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
75 cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack
76 endif
77
78 ifdef CONFIG_FUNCTION_TRACER
79 # make use of hotpatch feature if the compiler supports it
80 cc_hotpatch     := -mhotpatch=0,3
81 ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
82 CC_FLAGS_FTRACE := $(cc_hotpatch)
83 KBUILD_AFLAGS   += -DCC_USING_HOTPATCH
84 KBUILD_CFLAGS   += -DCC_USING_HOTPATCH
85 endif
86 endif
87
88 KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
89 KBUILD_CFLAGS   += -pipe -fno-strength-reduce -Wno-sign-compare
90 KBUILD_AFLAGS   += $(aflags-y)
91
92 OBJCOPYFLAGS    := -O binary
93
94 head-y          := arch/s390/kernel/head.o
95 head-y          += arch/s390/kernel/head64.o
96
97 # See arch/s390/Kbuild for content of core part of the kernel
98 core-y          += arch/s390/
99
100 libs-y          += arch/s390/lib/
101 drivers-y       += drivers/s390/
102
103 # must be linked after kernel
104 drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
105
106 boot            := arch/s390/boot
107
108 all: image bzImage
109
110 install: vmlinux
111         $(Q)$(MAKE) $(build)=$(boot) $@
112
113 image bzImage: vmlinux
114         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
115
116 zfcpdump:
117         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
118
119 vdso_install:
120         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
121         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
122
123 archclean:
124         $(Q)$(MAKE) $(clean)=$(boot)
125
126 # Don't use tabs in echo arguments
127 define archhelp
128   echo  '* image           - Kernel image for IPL ($(boot)/image)'
129   echo  '* bzImage         - Compressed kernel image for IPL ($(boot)/bzImage)'
130 endef