Commit | Line | Data |
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0b73214f | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
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 | # | |
1da177e4 LT |
10 | # Copyright (C) 1994 by Linus Torvalds |
11 | # | |
12 | ||
1844c9bc | 13 | LD_BFD := elf64-s390 |
1da177e4 | 14 | LDFLAGS := -m elf64_s390 |
7bdc229f MS |
15 | KBUILD_AFLAGS_MODULE += -fPIC |
16 | KBUILD_CFLAGS_MODULE += -fPIC | |
a0f97e06 | 17 | KBUILD_CFLAGS += -m64 |
222d394d | 18 | KBUILD_AFLAGS += -m64 |
1da177e4 LT |
19 | UTS_MACHINE := s390x |
20 | STACK_SIZE := 16384 | |
14516765 | 21 | CHECKFLAGS += -D__s390__ -D__s390x__ |
1da177e4 | 22 | |
1844c9bc MS |
23 | export LD_BFD |
24 | ||
0f1b1ff5 HC |
25 | mflags-$(CONFIG_MARCH_Z900) := -march=z900 |
26 | mflags-$(CONFIG_MARCH_Z990) := -march=z990 | |
27 | mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109 | |
28 | mflags-$(CONFIG_MARCH_Z10) := -march=z10 | |
29 | mflags-$(CONFIG_MARCH_Z196) := -march=z196 | |
30 | mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 | |
6997c323 MS |
31 | mflags-$(CONFIG_MARCH_Z13) := -march=z13 |
32 | mflags-$(CONFIG_MARCH_Z14) := -march=z14 | |
0f1b1ff5 | 33 | |
22362a0e MS |
34 | export CC_FLAGS_MARCH := $(mflags-y) |
35 | ||
0f1b1ff5 HC |
36 | aflags-y += $(mflags-y) |
37 | cflags-y += $(mflags-y) | |
1da177e4 | 38 | |
1db9e051 HC |
39 | cflags-$(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-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 | |
6997c323 MS |
45 | cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 |
46 | cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14 | |
1db9e051 | 47 | |
c783b91e MS |
48 | cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include |
49 | ||
cbbd1fa7 HC |
50 | # |
51 | # Prevent tail-call optimizations, to get clearer backtraces: | |
52 | # | |
53 | cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls | |
54 | ||
1da177e4 LT |
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-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
1da177e4 LT |
59 | endif |
60 | ||
61 | # new style option for packed stacks | |
62 | ifeq ($(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 | |
1da177e4 LT |
65 | endif |
66 | ||
67 | ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) | |
68 | cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) | |
be796285 | 69 | ifneq ($(call cc-option-yn,-mstack-size=8192),y) |
1da177e4 LT |
70 | cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) |
71 | endif | |
be796285 | 72 | endif |
1da177e4 LT |
73 | |
74 | ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) | |
2c190da4 | 75 | cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack |
1da177e4 LT |
76 | endif |
77 | ||
f19fbd5e MS |
78 | ifdef CONFIG_EXPOLINE |
79 | ifeq ($(call cc-option-yn,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),y) | |
80 | CC_FLAGS_EXPOLINE := -mindirect-branch=thunk | |
81 | CC_FLAGS_EXPOLINE += -mfunction-return=thunk | |
82 | CC_FLAGS_EXPOLINE += -mindirect-branch-table | |
83 | export CC_FLAGS_EXPOLINE | |
6e179d64 | 84 | cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_EXPOLINE |
f19fbd5e MS |
85 | endif |
86 | endif | |
87 | ||
e6d60b36 HC |
88 | ifdef CONFIG_FUNCTION_TRACER |
89 | # make use of hotpatch feature if the compiler supports it | |
90 | cc_hotpatch := -mhotpatch=0,3 | |
91 | ifeq ($(call cc-option-yn,$(cc_hotpatch)),y) | |
92 | CC_FLAGS_FTRACE := $(cc_hotpatch) | |
93 | KBUILD_AFLAGS += -DCC_USING_HOTPATCH | |
94 | KBUILD_CFLAGS += -DCC_USING_HOTPATCH | |
95 | endif | |
96 | endif | |
97 | ||
7bceec4e HB |
98 | # Test CFI features of binutils |
99 | cfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1) | |
100 | ||
a0f97e06 SR |
101 | KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) |
102 | KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare | |
7bceec4e HB |
103 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables $(cfi) |
104 | KBUILD_AFLAGS += $(aflags-y) $(cfi) | |
1da177e4 LT |
105 | |
106 | OBJCOPYFLAGS := -O binary | |
1da177e4 | 107 | |
1844c9bc | 108 | head-y := arch/s390/kernel/head.o |
5a79859a | 109 | head-y += arch/s390/kernel/head64.o |
1da177e4 | 110 | |
01485943 HC |
111 | # See arch/s390/Kbuild for content of core part of the kernel |
112 | core-y += arch/s390/ | |
155af2f9 | 113 | |
4562c9ff | 114 | libs-y += arch/s390/lib/ |
1da177e4 | 115 | drivers-y += drivers/s390/ |
1da177e4 LT |
116 | |
117 | # must be linked after kernel | |
118 | drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ | |
119 | ||
4562c9ff | 120 | boot := arch/s390/boot |
5c75824d | 121 | syscalls := arch/s390/kernel/syscalls |
c30f6828 | 122 | tools := arch/s390/tools |
1da177e4 | 123 | |
1844c9bc | 124 | all: image bzImage |
1da177e4 | 125 | |
e0aa099c VG |
126 | #KBUILD_IMAGE is necessary for packaging targets like rpm-pkg, deb-pkg... |
127 | KBUILD_IMAGE := $(boot)/bzImage | |
128 | ||
1da177e4 LT |
129 | install: vmlinux |
130 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
131 | ||
1844c9bc | 132 | image bzImage: vmlinux |
1da177e4 LT |
133 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
134 | ||
411ed322 MH |
135 | zfcpdump: |
136 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
137 | ||
f3cb31e4 | 138 | vdso_install: |
f3cb31e4 | 139 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ |
f3cb31e4 HB |
140 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ |
141 | ||
1da177e4 LT |
142 | archclean: |
143 | $(Q)$(MAKE) $(clean)=$(boot) | |
c30f6828 HC |
144 | $(Q)$(MAKE) $(clean)=$(tools) |
145 | ||
5c75824d HB |
146 | archheaders: |
147 | $(Q)$(MAKE) $(build)=$(syscalls) uapi | |
148 | ||
c30f6828 | 149 | archprepare: |
5c75824d | 150 | $(Q)$(MAKE) $(build)=$(syscalls) kapi |
7fbf8315 | 151 | $(Q)$(MAKE) $(build)=$(tools) kapi |
1da177e4 | 152 | |
1da177e4 LT |
153 | # Don't use tabs in echo arguments |
154 | define archhelp | |
155 | echo '* image - Kernel image for IPL ($(boot)/image)' | |
1844c9bc | 156 | echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' |
b8eecf36 MH |
157 | echo ' install - Install kernel using' |
158 | echo ' (your) ~/bin/$(INSTALLKERNEL) or' | |
159 | echo ' (distribution) /sbin/$(INSTALLKERNEL) or' | |
160 | echo ' install to $$(INSTALL_PATH)' | |
1da177e4 | 161 | endef |