1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # s390/Makefile !! 3 # sparc/Makefile
4 # 4 #
5 # This file is included by the global makefile !! 5 # Makefile for the architecture dependent flags and dependencies on the
6 # architecture-specific flags and dependencies !! 6 # Sparc and sparc64.
7 # <<
8 # Copyright (C) 1994 by Linus Torvalds <<
9 # 7 #
>> 8 # Copyright (C) 1994,1996,1998 David S. Miller (davem@caip.rutgers.edu)
>> 9 # Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
10 10
11 LD_BFD := elf64-s390 !! 11 # We are not yet configured - so test on arch
12 KBUILD_LDFLAGS := -m elf64_s390 !! 12 ifeq ($(ARCH),sparc64)
13 KBUILD_AFLAGS_MODULE += -fPIC !! 13 KBUILD_DEFCONFIG := sparc64_defconfig
14 KBUILD_CFLAGS_MODULE += -fPIC !! 14 else
15 KBUILD_AFLAGS += -m64 !! 15 KBUILD_DEFCONFIG := sparc32_defconfig
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 16 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 <<
65 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/incl <<
66 17
>> 18 ifeq ($(CONFIG_SPARC32),y)
>> 19 #####
>> 20 # sparc32
67 # 21 #
68 # Prevent tail-call optimizations, to get clea !! 22
>> 23 CHECKFLAGS += -D__sparc__
>> 24 KBUILD_LDFLAGS := -m elf32_sparc
>> 25 export BITS := 32
>> 26 UTS_MACHINE := sparc
>> 27
>> 28 # We are adding -Wa,-Av8 to KBUILD_CFLAGS to deal with a specs bug in some
>> 29 # versions of gcc. Some gcc versions won't pass -Av8 to binutils when you
>> 30 # give -mcpu=v8. This silently worked with older bintutils versions but
>> 31 # does not any more.
>> 32 KBUILD_CFLAGS += -m32 -mcpu=v8 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
>> 33 KBUILD_CFLAGS += -Wa,-Av8
>> 34
>> 35 KBUILD_AFLAGS += -m32 -Wa,-Av8
>> 36
>> 37 else
>> 38 #####
>> 39 # sparc64
69 # 40 #
70 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimiz <<
71 41
72 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) !! 42 CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__
73 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) !! 43 KBUILD_LDFLAGS := -m elf64_sparc
>> 44 export BITS := 64
>> 45 UTS_MACHINE := sparc64
>> 46
>> 47 KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow
>> 48 KBUILD_CFLAGS += -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare
>> 49 KBUILD_CFLAGS += -Wa,--undeclared-regs
>> 50 KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
>> 51 KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
74 52
75 ifneq ($(call cc-option,-mstack-size=8192 -mst !! 53 ifeq ($(CONFIG_MCOUNT),y)
76 CC_FLAGS_CHECK_STACK := -mstack-size=$(STACK !! 54 KBUILD_CFLAGS += -pg
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 55 endif
83 56
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 += $(CC_FLAGS_EXPOLINE) -DCC_USING_ <<
95 aflags-y += -DCC_USING_EXPOLINE <<
96 endif 57 endif
97 58
98 ifdef CONFIG_FUNCTION_TRACER !! 59 libs-y += arch/sparc/prom/
99 ifeq ($(call cc-option,-mfentry -mnop-mcount !! 60 libs-y += arch/sparc/lib/
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) $(cfi) <<
117 export KBUILD_AFLAGS_DECOMPRESSOR <<
118 export KBUILD_CFLAGS_DECOMPRESSOR <<
119 <<
120 OBJCOPYFLAGS := -O binary <<
121 61
122 libs-y += arch/s390/lib/ !! 62 drivers-$(CONFIG_PM) += arch/sparc/power/
>> 63 drivers-$(CONFIG_VIDEO) += arch/sparc/video/
123 64
124 boot := arch/s390/boot !! 65 boot := arch/sparc/boot
125 syscalls := arch/s390/kernel/syscalls <<
126 tools := arch/s390/tools <<
127 66
128 all: bzImage !! 67 # Default target
>> 68 all: zImage
129 69
130 #KBUILD_IMAGE is necessary for packaging targe !! 70 image zImage uImage tftpboot.img vmlinux.aout: vmlinux
131 KBUILD_IMAGE := $(boot)/bzImage !! 71 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
132 72
133 install: 73 install:
134 $(call cmd,install) 74 $(call cmd,install)
135 75
136 bzImage: vmlinux <<
137 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
138 <<
139 zfcpdump: <<
140 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
141 <<
142 archheaders: 76 archheaders:
143 $(Q)$(MAKE) $(build)=$(syscalls) uapi !! 77 $(Q)$(MAKE) $(build)=arch/sparc/kernel/syscalls all
144 <<
145 archprepare: <<
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 $(build)=arch/s390/kernel/vdso <<
160 78
161 vdso-install-y += arch/s390/k !! 79 vdso-install-$(CONFIG_SPARC64) += arch/sparc/vdso/vdso64.so.dbg
162 vdso-install-$(CONFIG_COMPAT) += arch/s390/k !! 80 vdso-install-$(CONFIG_COMPAT) += arch/sparc/vdso/vdso32.so.dbg
163 81
164 endif !! 82 # This is the image used for packaging
>> 83 KBUILD_IMAGE := $(boot)/zImage
165 84
166 # Don't use tabs in echo arguments !! 85 # Don't use tabs in echo arguments.
167 define archhelp 86 define archhelp
168 echo '* bzImage - Kernel image for !! 87 echo '* vmlinux - standard SPARC kernel'
169 echo ' install - Install kernel us !! 88 echo ' image - kernel image ($(boot)/image)'
170 echo ' (your) ~/bin/$(IN !! 89 echo '* zImage - stripped/compressed kernel image ($(boot)/zImage)'
171 echo ' (distribution) /s !! 90 echo ' uImage - U-Boot SPARC32 Image (only for LEON)'
172 echo ' install to $$(INS !! 91 echo ' vmlinux.aout - a.out kernel for SPARC64'
>> 92 echo ' tftpboot.img - image prepared for tftp'
173 endef 93 endef
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