1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # s390/Makefile !! 2 # alpha/Makefile
4 # 3 #
5 # This file is included by the global makefile !! 4 # This file is subject to the terms and conditions of the GNU General Public
6 # architecture-specific flags and dependencies !! 5 # License. See the file "COPYING" in the main directory of this archive
>> 6 # for more details.
7 # 7 #
8 # Copyright (C) 1994 by Linus Torvalds 8 # Copyright (C) 1994 by Linus Torvalds
9 # 9 #
10 10
11 LD_BFD := elf64-s390 !! 11 KBUILD_DEFCONFIG := defconfig
12 KBUILD_LDFLAGS := -m elf64_s390 <<
13 KBUILD_AFLAGS_MODULE += -fPIC <<
14 KBUILD_CFLAGS_MODULE += -fPIC <<
15 KBUILD_AFLAGS += -m64 <<
16 KBUILD_CFLAGS += -m64 <<
17 KBUILD_CFLAGS += -fPIC <<
18 LDFLAGS_vmlinux := -no-pie --emit-relocs --dis <<
19 extra_tools := relocs <<
20 aflags_dwarf := -Wa,-gdwarf-2 <<
21 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) - <<
22 ifndef CONFIG_AS_IS_LLVM <<
23 KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE <<
24 endif <<
25 KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) - <<
26 KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH <<
27 KBUILD_CFLAGS_DECOMPRESSOR += -D__DECOMPRESSOR <<
28 KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null <<
29 KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronou <<
30 KBUILD_CFLAGS_DECOMPRESSOR += -ffreestanding <<
31 KBUILD_CFLAGS_DECOMPRESSOR += -fno-stack-prote <<
32 KBUILD_CFLAGS_DECOMPRESSOR += -fPIE <<
33 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disabl <<
34 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE <<
35 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE <<
36 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_CC <<
37 <<
38 UTS_MACHINE := s390x <<
39 STACK_SIZE := $(if $(CONFIG_KASAN),65536, <<
40 CHECKFLAGS += -D__s390__ -D__s390x__ <<
41 <<
42 export LD_BFD <<
43 <<
44 mflags-$(CONFIG_MARCH_Z10) := -march=z10 <<
45 mflags-$(CONFIG_MARCH_Z196) := -march=z196 <<
46 mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 <<
47 mflags-$(CONFIG_MARCH_Z13) := -march=z13 <<
48 mflags-$(CONFIG_MARCH_Z14) := -march=z14 <<
49 mflags-$(CONFIG_MARCH_Z15) := -march=z15 <<
50 mflags-$(CONFIG_MARCH_Z16) := -march=z16 <<
51 <<
52 export CC_FLAGS_MARCH := $(mflags-y) <<
53 <<
54 aflags-y += $(mflags-y) <<
55 cflags-y += $(mflags-y) <<
56 <<
57 cflags-$(CONFIG_MARCH_Z10_TUNE) += -mt <<
58 cflags-$(CONFIG_MARCH_Z196_TUNE) += -mt <<
59 cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mt <<
60 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mt <<
61 cflags-$(CONFIG_MARCH_Z14_TUNE) += -mt <<
62 cflags-$(CONFIG_MARCH_Z15_TUNE) += -mt <<
63 cflags-$(CONFIG_MARCH_Z16_TUNE) += -mt <<
64 12
65 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/incl !! 13 NM := $(NM) -B
66 14
67 # !! 15 LDFLAGS_vmlinux := -static -N #-relax
68 # Prevent tail-call optimizations, to get clea !! 16 CHECKFLAGS += -D__alpha__
69 # !! 17 cflags-y := -pipe -mno-fp-regs -ffixed-8
70 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimiz !! 18 cflags-y += $(call cc-option, -fno-jump-tables)
71 19
72 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) !! 20 cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4
73 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) !! 21 cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5
>> 22 cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56
>> 23 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56
>> 24 cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56
>> 25 cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6
>> 26 cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67
>> 27 # If GENERIC, make sure to turn off any instruction set extensions that
>> 28 # the host compiler might have on by default. Given that EV4 and EV5
>> 29 # have the same instruction set, prefer EV5 because an EV5 schedule is
>> 30 # more likely to keep an EV4 processor busy than vice-versa.
>> 31 cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5
74 32
75 ifneq ($(call cc-option,-mstack-size=8192 -mst !! 33 cflags-y += $(cpuflags-y)
76 CC_FLAGS_CHECK_STACK := -mstack-size=$(STACK <<
77 ifeq ($(call cc-option,-mstack-size=8192),) <<
78 CC_FLAGS_CHECK_STACK += -mstack-guard=$(CO <<
79 endif <<
80 export CC_FLAGS_CHECK_STACK <<
81 cflags-$(CONFIG_CHECK_STACK) += $(CC_FLAGS_C <<
82 endif <<
83 <<
84 ifdef CONFIG_EXPOLINE <<
85 ifdef CONFIG_EXPOLINE_EXTERN <<
86 CC_FLAGS_EXPOLINE := -mindirect-branch=thu <<
87 CC_FLAGS_EXPOLINE += -mfunction-return=thu <<
88 else <<
89 CC_FLAGS_EXPOLINE := -mindirect-branch=thu <<
90 CC_FLAGS_EXPOLINE += -mfunction-return=thu <<
91 endif <<
92 CC_FLAGS_EXPOLINE += -mindirect-branch-table <<
93 export CC_FLAGS_EXPOLINE <<
94 cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_ <<
95 aflags-y += -DCC_USING_EXPOLINE <<
96 endif <<
97 <<
98 ifdef CONFIG_FUNCTION_TRACER <<
99 ifeq ($(call cc-option,-mfentry -mnop-mcount <<
100 # make use of hotpatch feature if the comp <<
101 cc_hotpatch := -mhotpatch=0,3 <<
102 ifneq ($(call cc-option,$(cc_hotpatch)),) <<
103 CC_FLAGS_FTRACE := $(cc_hotpatch) <<
104 KBUILD_AFLAGS += -DCC_USING_HOTPATCH <<
105 KBUILD_CFLAGS += -DCC_USING_HOTPATCH <<
106 endif <<
107 endif <<
108 endif <<
109 <<
110 # Test CFI features of binutils <<
111 cfi := $(call as-instr,.cfi_startproc\n.cfi_va <<
112 <<
113 KBUILD_CFLAGS += -mpacked-stack -mbackchain <<
114 KBUILD_CFLAGS += -pipe -Wno-sign-compare <<
115 KBUILD_CFLAGS += -fno-asynchronous-unwind-ta <<
116 KBUILD_AFLAGS += $(aflags-y) $(cfi) <<
117 export KBUILD_AFLAGS_DECOMPRESSOR <<
118 export KBUILD_CFLAGS_DECOMPRESSOR <<
119 <<
120 OBJCOPYFLAGS := -O binary <<
121 <<
122 libs-y += arch/s390/lib/ <<
123 <<
124 boot := arch/s390/boot <<
125 syscalls := arch/s390/kernel/syscalls <<
126 tools := arch/s390/tools <<
127 <<
128 all: bzImage <<
129 34
130 #KBUILD_IMAGE is necessary for packaging targe <<
131 KBUILD_IMAGE := $(boot)/bzImage <<
132 35
133 install: !! 36 # For TSUNAMI, we must have the assembler not emulate our instructions.
134 $(call cmd,install) !! 37 # The same is true for IRONGATE, POLARIS, PYXIS.
>> 38 # BWX is most important, but we don't really want any emulation ever.
>> 39 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
135 40
136 bzImage: vmlinux !! 41 head-y := arch/alpha/kernel/head.o
137 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
138 42
139 zfcpdump: !! 43 core-y += arch/alpha/kernel/ arch/alpha/mm/
140 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 44 core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/
>> 45 drivers-$(CONFIG_OPROFILE) += arch/alpha/oprofile/
>> 46 libs-y += arch/alpha/lib/
141 47
142 archheaders: !! 48 # export what is needed by arch/alpha/boot/Makefile
143 $(Q)$(MAKE) $(build)=$(syscalls) uapi !! 49 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
>> 50 export LIBS_Y
144 51
145 archprepare: !! 52 boot := arch/alpha/boot
146 $(Q)$(MAKE) $(build)=$(syscalls) kapi <<
147 $(Q)$(MAKE) $(build)=$(tools) kapi $(e <<
148 ifeq ($(KBUILD_EXTMOD),) <<
149 # We need to generate vdso-offsets.h before co <<
150 # In order to do that, we should use the archp <<
151 # asm-offsets.h is included in some files used <<
152 # asm-offsets.h is built in prepare0, for whic <<
153 # Therefore we need to generate the header aft <<
154 # this hack. <<
155 prepare: vdso_prepare <<
156 vdso_prepare: prepare0 <<
157 $(Q)$(MAKE) $(build)=arch/s390/kernel/ <<
158 $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \ <<
159 $(build)=arch/s390/kernel/vdso <<
160 53
161 vdso-install-y += arch/s390/k !! 54 #Default target when executing make with no arguments
162 vdso-install-$(CONFIG_COMPAT) += arch/s390/k !! 55 all boot: $(boot)/vmlinux.gz
163 56
164 endif !! 57 $(boot)/vmlinux.gz: vmlinux
>> 58 $(Q)$(MAKE) $(build)=$(boot) $@
>> 59
>> 60 bootimage bootpfile bootpzfile: vmlinux
>> 61 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
>> 62
>> 63 archclean:
>> 64 $(Q)$(MAKE) $(clean)=$(boot)
>> 65
>> 66 archheaders:
>> 67 $(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
165 68
166 # Don't use tabs in echo arguments <<
167 define archhelp 69 define archhelp
168 echo '* bzImage - Kernel image for !! 70 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
169 echo ' install - Install kernel us !! 71 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)'
170 echo ' (your) ~/bin/$(IN !! 72 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)'
171 echo ' (distribution) /s !! 73 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
172 echo ' install to $$(INS <<
173 endef 74 endef
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