1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # s390/Makefile !! 2 # m68k/Makefile
4 # 3 #
5 # This file is included by the global makefile 4 # This file is included by the global makefile so that you can add your own
6 # architecture-specific flags and dependencies 5 # architecture-specific flags and dependencies.
7 # 6 #
8 # Copyright (C) 1994 by Linus Torvalds !! 7 # This file is subject to the terms and conditions of the GNU General Public
>> 8 # License. See the file "COPYING" in the main directory of this archive
>> 9 # for more details.
9 # 10 #
>> 11 # Copyright (C) 1994 by Hamish Macdonald
>> 12 # Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
>> 13 #
>> 14
>> 15 KBUILD_DEFCONFIG := multi_defconfig
10 16
11 LD_BFD := elf64-s390 !! 17 ifdef cross_compiling
12 KBUILD_LDFLAGS := -m elf64_s390 !! 18 ifeq ($(CROSS_COMPILE),)
13 KBUILD_AFLAGS_MODULE += -fPIC !! 19 CROSS_COMPILE := $(call cc-cross-prefix, \
14 KBUILD_CFLAGS_MODULE += -fPIC !! 20 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
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 <<
65 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/incl <<
66 <<
67 # <<
68 # Prevent tail-call optimizations, to get clea <<
69 # <<
70 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimiz <<
71 <<
72 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) <<
73 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) <<
74 <<
75 ifneq ($(call cc-option,-mstack-size=8192 -mst <<
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 21 endif
107 endif <<
108 endif 22 endif
109 23
110 # Test CFI features of binutils !! 24 #
111 cfi := $(call as-instr,.cfi_startproc\n.cfi_va !! 25 # Enable processor type. Ordering of these is important - we want to
>> 26 # use the minimum processor type of the range we support. The logic
>> 27 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
>> 28 # 680x0 type is specified - and no option is specified for 68030 or
>> 29 # 68020. The other m68k/ColdFire types always specify some type of
>> 30 # compiler cpu type flag.
>> 31 #
>> 32 ifndef CONFIG_M68040
>> 33 cpuflags-$(CONFIG_M68060) = -m68060
>> 34 endif
>> 35 ifndef CONFIG_M68060
>> 36 cpuflags-$(CONFIG_M68040) = -m68040
>> 37 endif
>> 38 cpuflags-$(CONFIG_M68030) =
>> 39 cpuflags-$(CONFIG_M68020) =
>> 40 cpuflags-$(CONFIG_M68000) = -m68000
>> 41 cpuflags-$(CONFIG_M5441x) = $(call cc-option,-mcpu=54455,-mcfv4e)
>> 42 cpuflags-$(CONFIG_M54xx) = $(call cc-option,-mcpu=5475,-m5200)
>> 43 cpuflags-$(CONFIG_M5407) = $(call cc-option,-mcpu=5407,-m5200)
>> 44 cpuflags-$(CONFIG_M532x) = $(call cc-option,-mcpu=532x,-m5307)
>> 45 cpuflags-$(CONFIG_M537x) = $(call cc-option,-mcpu=537x,-m5307)
>> 46 cpuflags-$(CONFIG_M5307) = $(call cc-option,-mcpu=5307,-m5200)
>> 47 cpuflags-$(CONFIG_M528x) = $(call cc-option,-mcpu=528x,-m5307)
>> 48 cpuflags-$(CONFIG_M5275) = $(call cc-option,-mcpu=5275,-m5307)
>> 49 cpuflags-$(CONFIG_M5272) = $(call cc-option,-mcpu=5272,-m5307)
>> 50 cpuflags-$(CONFIG_M5271) = $(call cc-option,-mcpu=5271,-m5307)
>> 51 cpuflags-$(CONFIG_M523x) = $(call cc-option,-mcpu=523x,-m5307)
>> 52 cpuflags-$(CONFIG_M525x) = $(call cc-option,-mcpu=5253,-m5200)
>> 53 cpuflags-$(CONFIG_M5249) = $(call cc-option,-mcpu=5249,-m5200)
>> 54 cpuflags-$(CONFIG_M520x) = $(call cc-option,-mcpu=5208,-m5200)
>> 55 cpuflags-$(CONFIG_M5206e) = $(call cc-option,-mcpu=5206e,-m5200)
>> 56 cpuflags-$(CONFIG_M5206) = $(call cc-option,-mcpu=5206,-m5200)
>> 57
>> 58 # Evaluate tune cc-option calls now
>> 59 cpuflags-y := $(cpuflags-y)
>> 60
>> 61 KBUILD_AFLAGS += $(cpuflags-y)
>> 62 KBUILD_CFLAGS += $(cpuflags-y)
>> 63
>> 64 KBUILD_CFLAGS += -pipe -ffreestanding
>> 65
>> 66 ifdef CONFIG_MMU
>> 67 KBUILD_CFLAGS += -ffixed-a2
>> 68 else
>> 69 # we can use a m68k-linux-gcc toolchain with these in place
>> 70 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
>> 71 KBUILD_CPPFLAGS += -D__uClinux__
>> 72 endif
112 73
113 KBUILD_CFLAGS += -mpacked-stack -mbackchain !! 74 KBUILD_LDFLAGS := -m m68kelf
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 75
120 OBJCOPYFLAGS := -O binary !! 76 ifdef CONFIG_SUN3
>> 77 LDFLAGS_vmlinux = -N
>> 78 endif
121 79
122 libs-y += arch/s390/lib/ !! 80 CHECKFLAGS += -D__mc68000__
123 81
124 boot := arch/s390/boot <<
125 syscalls := arch/s390/kernel/syscalls <<
126 tools := arch/s390/tools <<
127 82
128 all: bzImage !! 83 ifdef CONFIG_KGDB
>> 84 # If configured for kgdb support, include debugging infos and keep the
>> 85 # frame pointer
>> 86 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
>> 87 endif
129 88
130 #KBUILD_IMAGE is necessary for packaging targe !! 89 libs-y += arch/m68k/lib/
131 KBUILD_IMAGE := $(boot)/bzImage <<
132 90
133 install: <<
134 $(call cmd,install) <<
135 91
136 bzImage: vmlinux !! 92 all: zImage
137 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
138 93
139 zfcpdump: !! 94 lilo: vmlinux
140 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 95 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
>> 96 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
>> 97 cat vmlinux > $(INSTALL_PATH)/vmlinux
>> 98 cp System.map $(INSTALL_PATH)/System.map
>> 99 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
141 100
142 archheaders: !! 101 zImage compressed: vmlinux.gz
143 $(Q)$(MAKE) $(build)=$(syscalls) uapi !! 102
>> 103 vmlinux.gz: vmlinux
>> 104
>> 105 ifndef CONFIG_KGDB
>> 106 cp vmlinux vmlinux.tmp
>> 107 $(STRIP) vmlinux.tmp
>> 108 $(KGZIP) -9c vmlinux.tmp >vmlinux.gz
>> 109 rm vmlinux.tmp
>> 110 else
>> 111 $(KGZIP) -9c vmlinux >vmlinux.gz
>> 112 endif
>> 113
>> 114 bzImage: vmlinux.bz2
144 115
145 archprepare: !! 116 vmlinux.bz2: vmlinux
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 $(build)=arch/s390/kernel/vdso <<
160 <<
161 vdso-install-y += arch/s390/k <<
162 vdso-install-$(CONFIG_COMPAT) += arch/s390/k <<
163 117
>> 118 ifndef CONFIG_KGDB
>> 119 cp vmlinux vmlinux.tmp
>> 120 $(STRIP) vmlinux.tmp
>> 121 $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
>> 122 rm vmlinux.tmp
>> 123 else
>> 124 $(KBZIP2) -1c vmlinux >vmlinux.bz2
164 endif 125 endif
165 126
166 # Don't use tabs in echo arguments !! 127 CLEAN_FILES += vmlinux.gz vmlinux.bz2
167 define archhelp !! 128
168 echo '* bzImage - Kernel image for !! 129 archheaders:
169 echo ' install - Install kernel us !! 130 $(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
170 echo ' (your) ~/bin/$(IN !! 131
171 echo ' (distribution) /s !! 132 install: KBUILD_IMAGE := vmlinux.gz
172 echo ' install to $$(INS !! 133 install:
173 endef !! 134 $(call cmd,install)
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