ALSA: mips: Convert to the common vmalloc memalloc
[sfrench/cifs-2.6.git] / arch / s390 / Makefile
1 # SPDX-License-Identifier: GPL-2.0
2 #
3 # s390/Makefile
4 #
5 # This file is included by the global makefile so that you can add your own
6 # architecture-specific flags and dependencies. Remember to do have actions
7 # for "archclean" and "archdep" for cleaning up and making dependencies for
8 # this architecture
9 #
10 # Copyright (C) 1994 by Linus Torvalds
11 #
12
13 LD_BFD          := elf64-s390
14 KBUILD_LDFLAGS  := -m elf64_s390
15 KBUILD_AFLAGS_MODULE += -fPIC
16 KBUILD_CFLAGS_MODULE += -fPIC
17 KBUILD_AFLAGS   += -m64
18 KBUILD_CFLAGS   += -m64
19 ifeq ($(CONFIG_RELOCATABLE),y)
20 KBUILD_CFLAGS   += -fPIE
21 LDFLAGS_vmlinux := -pie
22 endif
23 aflags_dwarf    := -Wa,-gdwarf-2
24 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
25 KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf))
26 KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2
27 KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
28 KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float
29 KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
30 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
31 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member)
32 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
33 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
34 UTS_MACHINE     := s390x
35 STACK_SIZE      := $(if $(CONFIG_KASAN),65536,16384)
36 CHECKFLAGS      += -D__s390__ -D__s390x__
37
38 export LD_BFD
39
40 mflags-$(CONFIG_MARCH_Z900)   := -march=z900
41 mflags-$(CONFIG_MARCH_Z990)   := -march=z990
42 mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
43 mflags-$(CONFIG_MARCH_Z10)    := -march=z10
44 mflags-$(CONFIG_MARCH_Z196)   := -march=z196
45 mflags-$(CONFIG_MARCH_ZEC12)  := -march=zEC12
46 mflags-$(CONFIG_MARCH_Z13)    := -march=z13
47 mflags-$(CONFIG_MARCH_Z14)    := -march=z14
48 mflags-$(CONFIG_MARCH_Z15)    := -march=z15
49
50 export CC_FLAGS_MARCH := $(mflags-y)
51
52 aflags-y += $(mflags-y)
53 cflags-y += $(mflags-y)
54
55 cflags-$(CONFIG_MARCH_Z900_TUNE)        += -mtune=z900
56 cflags-$(CONFIG_MARCH_Z990_TUNE)        += -mtune=z990
57 cflags-$(CONFIG_MARCH_Z9_109_TUNE)      += -mtune=z9-109
58 cflags-$(CONFIG_MARCH_Z10_TUNE)         += -mtune=z10
59 cflags-$(CONFIG_MARCH_Z196_TUNE)        += -mtune=z196
60 cflags-$(CONFIG_MARCH_ZEC12_TUNE)       += -mtune=zEC12
61 cflags-$(CONFIG_MARCH_Z13_TUNE)         += -mtune=z13
62 cflags-$(CONFIG_MARCH_Z14_TUNE)         += -mtune=z14
63 cflags-$(CONFIG_MARCH_Z15_TUNE)         += -mtune=z15
64
65 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
66
67 #
68 # Prevent tail-call optimizations, to get clearer backtraces:
69 #
70 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
71
72 ifeq ($(call cc-option-yn,-mpacked-stack),y)
73 cflags-$(CONFIG_PACK_STACK)  += -mpacked-stack -D__PACK_STACK
74 aflags-$(CONFIG_PACK_STACK)  += -D__PACK_STACK
75 endif
76
77 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y)
78 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y)
79
80 ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
81 cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
82 ifneq ($(call cc-option-yn,-mstack-size=8192),y)
83 cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
84 endif
85 endif
86
87 ifdef CONFIG_WARN_DYNAMIC_STACK
88   ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
89     KBUILD_CFLAGS += -mwarn-dynamicstack
90     KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack
91   endif
92 endif
93
94 ifdef CONFIG_EXPOLINE
95   ifeq ($(call cc-option-yn,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),y)
96     CC_FLAGS_EXPOLINE := -mindirect-branch=thunk
97     CC_FLAGS_EXPOLINE += -mfunction-return=thunk
98     CC_FLAGS_EXPOLINE += -mindirect-branch-table
99     export CC_FLAGS_EXPOLINE
100     cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_EXPOLINE
101     aflags-y += -DCC_USING_EXPOLINE
102   endif
103 endif
104
105 ifdef CONFIG_FUNCTION_TRACER
106   ifeq ($(call cc-option-yn,-mfentry -mnop-mcount),n)
107     # make use of hotpatch feature if the compiler supports it
108     cc_hotpatch := -mhotpatch=0,3
109     ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
110       CC_FLAGS_FTRACE := $(cc_hotpatch)
111       KBUILD_AFLAGS     += -DCC_USING_HOTPATCH
112       KBUILD_CFLAGS     += -DCC_USING_HOTPATCH
113     endif
114   endif
115 endif
116
117 # Test CFI features of binutils
118 cfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1)
119
120 KBUILD_CFLAGS   += -mbackchain -msoft-float $(cflags-y)
121 KBUILD_CFLAGS   += -pipe -Wno-sign-compare
122 KBUILD_CFLAGS   += -fno-asynchronous-unwind-tables $(cfi)
123 KBUILD_AFLAGS   += $(aflags-y) $(cfi)
124 export KBUILD_AFLAGS_DECOMPRESSOR
125 export KBUILD_CFLAGS_DECOMPRESSOR
126
127 OBJCOPYFLAGS    := -O binary
128
129 head-y          := arch/s390/kernel/head64.o
130
131 # See arch/s390/Kbuild for content of core part of the kernel
132 core-y          += arch/s390/
133
134 libs-y          += arch/s390/lib/
135 drivers-y       += drivers/s390/
136
137 # must be linked after kernel
138 drivers-$(CONFIG_OPROFILE)      += arch/s390/oprofile/
139
140 boot            := arch/s390/boot
141 syscalls        := arch/s390/kernel/syscalls
142 tools           := arch/s390/tools
143
144 all: bzImage
145
146 #KBUILD_IMAGE is necessary for packaging targets like rpm-pkg, deb-pkg...
147 KBUILD_IMAGE    := $(boot)/bzImage
148
149 install: vmlinux
150         $(Q)$(MAKE) $(build)=$(boot) $@
151
152 bzImage: vmlinux
153         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
154
155 zfcpdump:
156         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
157
158 vdso_install:
159         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
160         $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
161
162 archclean:
163         $(Q)$(MAKE) $(clean)=$(boot)
164         $(Q)$(MAKE) $(clean)=$(tools)
165
166 archheaders:
167         $(Q)$(MAKE) $(build)=$(syscalls) uapi
168
169 archprepare:
170         $(Q)$(MAKE) $(build)=$(syscalls) kapi
171         $(Q)$(MAKE) $(build)=$(tools) kapi
172
173 # Don't use tabs in echo arguments
174 define archhelp
175   echo  '* bzImage         - Kernel image for IPL ($(boot)/bzImage)'
176   echo  '  install         - Install kernel using'
177   echo  '                    (your) ~/bin/$(INSTALLKERNEL) or'
178   echo  '                    (distribution) /sbin/$(INSTALLKERNEL) or'
179   echo  '                    install to $$(INSTALL_PATH)'
180 endef