1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # Author: Huacai Chen <chenhuacai@loongson.cn> !! 2 # m68k/Makefile
4 # Copyright (C) 2020-2022 Loongson Technology <<
5 <<
6 boot := arch/loongarch/boot <<
7 <<
8 KBUILD_DEFCONFIG := loongson3_defconfig <<
9 KBUILD_DTBS := dtbs <<
10 <<
11 image-name-y := vmlinux <<
12 image-name-$(CONFIG_EFI_ZBOOT) := vmlinuz <<
13 <<
14 ifndef CONFIG_EFI_STUB <<
15 KBUILD_IMAGE := $(boot)/vmlinux.elf <<
16 else <<
17 KBUILD_IMAGE := $(boot)/$(image-name-y).efi <<
18 endif <<
19 <<
20 # 3 #
21 # Select the object file format to substitute !! 4 # This file is included by the global makefile so that you can add your own
>> 5 # architecture-specific flags and dependencies. Remember to do have actions
>> 6 # for "archclean" and "archdep" for cleaning up and making dependencies for
>> 7 # this architecture
>> 8 #
>> 9 # This file is subject to the terms and conditions of the GNU General Public
>> 10 # License. See the file "COPYING" in the main directory of this archive
>> 11 # for more details.
>> 12 #
>> 13 # Copyright (C) 1994 by Hamish Macdonald
>> 14 # Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
22 # 15 #
23 64bit-tool-archpref = loongarch64 <<
24 32bit-bfd = elf32-loongarch <<
25 64bit-bfd = elf64-loongarch <<
26 32bit-emul = elf32loongarch <<
27 64bit-emul = elf64loongarch <<
28 <<
29 CC_FLAGS_FPU := -mfpu=64 <<
30 CC_FLAGS_NO_FPU := -msoft-float <<
31 <<
32 ifdef CONFIG_UNWINDER_ORC <<
33 orc_hash_h := arch/$(SRCARCH)/include/generate <<
34 orc_hash_sh := $(srctree)/scripts/orc_hash.sh <<
35 targets += $(orc_hash_h) <<
36 quiet_cmd_orc_hash = GEN $@ <<
37 cmd_orc_hash = mkdir -p $(dir $@); \ <<
38 $(CONFIG_SHELL) $(orc_has <<
39 $(orc_hash_h): $(srctree)/arch/loongarch/inclu <<
40 $(call if_changed,orc_hash) <<
41 archprepare: $(orc_hash_h) <<
42 endif <<
43 16
44 ifdef CONFIG_DYNAMIC_FTRACE !! 17 KBUILD_DEFCONFIG := multi_defconfig
45 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI <<
46 CC_FLAGS_FTRACE := -fpatchable-function-entry= <<
47 endif <<
48 18
49 ifdef CONFIG_64BIT !! 19 ifneq ($(SUBARCH),$(ARCH))
50 tool-archpref = $(64bit-tool-archpre !! 20 ifeq ($(CROSS_COMPILE),)
51 UTS_MACHINE := loongarch64 !! 21 CROSS_COMPILE := $(call cc-cross-prefix, \
>> 22 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
>> 23 endif
52 endif 24 endif
53 25
54 ifneq ($(SUBARCH),$(ARCH)) !! 26 #
55 ifeq ($(CROSS_COMPILE),) !! 27 # Enable processor type. Ordering of these is important - we want to
56 CROSS_COMPILE := $(call cc-cross-prefix, $ !! 28 # use the minimum processor type of the range we support. The logic
57 endif !! 29 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
58 endif !! 30 # 680x0 type is specified - and no option is specified for 68030 or
59 !! 31 # 68020. The other m68k/ColdFire types always specify some type of
60 ifdef CONFIG_64BIT !! 32 # compiler cpu type flag.
61 ld-emul = $(64bit-emul) !! 33 #
62 cflags-y += -mabi=lp64s !! 34 ifndef CONFIG_M68040
63 endif !! 35 cpuflags-$(CONFIG_M68060) = -m68060
64 !! 36 endif
65 cflags-y += -pipe $(CC_ !! 37 ifndef CONFIG_M68060
66 LDFLAGS_vmlinux += -static -n !! 38 cpuflags-$(CONFIG_M68040) = -m68040
67 !! 39 endif
68 # When the assembler supports explicit relocat !! 40 cpuflags-$(CONFIG_M68030) =
69 # GCC may have -mexplicit-relocs off by defaul !! 41 cpuflags-$(CONFIG_M68020) =
70 # assembler, so we force it via an option. !! 42 cpuflags-$(CONFIG_M68000) = -m68000
71 # !! 43 cpuflags-$(CONFIG_M5441x) = $(call cc-option,-mcpu=54455,-mcfv4e)
72 # When the assembler does not supports explici !! 44 cpuflags-$(CONFIG_M54xx) = $(call cc-option,-mcpu=5475,-m5200)
73 # it. Disable it if the compiler supports it. !! 45 cpuflags-$(CONFIG_M5407) = $(call cc-option,-mcpu=5407,-m5200)
74 # !! 46 cpuflags-$(CONFIG_M532x) = $(call cc-option,-mcpu=532x,-m5307)
75 # The combination of a "new" assembler and "ol !! 47 cpuflags-$(CONFIG_M537x) = $(call cc-option,-mcpu=537x,-m5307)
76 # the rarity of this combo and the extra compl !! 48 cpuflags-$(CONFIG_M5307) = $(call cc-option,-mcpu=5307,-m5200)
77 # Either upgrade the compiler or downgrade the !! 49 cpuflags-$(CONFIG_M528x) = $(call cc-option,-mcpu=528x,-m5307)
78 # out if it is the case (by probing for the mo !! 50 cpuflags-$(CONFIG_M5275) = $(call cc-option,-mcpu=5275,-m5307)
79 # compilers in this case would have support). !! 51 cpuflags-$(CONFIG_M5272) = $(call cc-option,-mcpu=5272,-m5307)
80 # !! 52 cpuflags-$(CONFIG_M5271) = $(call cc-option,-mcpu=5271,-m5307)
81 # Also, -mdirect-extern-access is useful in ca !! 53 cpuflags-$(CONFIG_M523x) = $(call cc-option,-mcpu=523x,-m5307)
82 # relocs, for avoiding unnecessary GOT accesse !! 54 cpuflags-$(CONFIG_M525x) = $(call cc-option,-mcpu=5253,-m5200)
83 # support though. !! 55 cpuflags-$(CONFIG_M5249) = $(call cc-option,-mcpu=5249,-m5200)
84 ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS !! 56 cpuflags-$(CONFIG_M520x) = $(call cc-option,-mcpu=5208,-m5200)
85 cflags-y += $(call cc-o !! 57 cpuflags-$(CONFIG_M5206e) = $(call cc-option,-mcpu=5206e,-m5200)
86 KBUILD_CFLAGS_KERNEL += $(call cc-o !! 58 cpuflags-$(CONFIG_M5206) = $(call cc-option,-mcpu=5206,-m5200)
87 KBUILD_CFLAGS_KERNEL += $(call cc-o !! 59
88 KBUILD_AFLAGS_MODULE += $(call cc-o !! 60 # Evaluate tune cc-option calls now
89 KBUILD_CFLAGS_MODULE += $(call cc-o !! 61 cpuflags-y := $(cpuflags-y)
>> 62
>> 63 KBUILD_AFLAGS += $(cpuflags-y)
>> 64 KBUILD_CFLAGS += $(cpuflags-y)
>> 65
>> 66 KBUILD_CFLAGS += -pipe -ffreestanding
>> 67
>> 68 ifdef CONFIG_MMU
>> 69 # without -fno-strength-reduce the 53c7xx.c driver fails ;-(
>> 70 KBUILD_CFLAGS += -fno-strength-reduce -ffixed-a2
90 else 71 else
91 cflags-y += $(call cc-o !! 72 # we can use a m68k-linux-gcc toolchain with these in place
92 KBUILD_AFLAGS_KERNEL += -Wa,-mla-gl !! 73 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
93 KBUILD_CFLAGS_KERNEL += -Wa,-mla-gl !! 74 KBUILD_CPPFLAGS += -D__uClinux__
94 KBUILD_AFLAGS_MODULE += -Wa,-mla-gl <<
95 KBUILD_CFLAGS_MODULE += -fplt -Wa,- <<
96 endif 75 endif
97 76
98 KBUILD_AFLAGS += $(call cc-o !! 77 KBUILD_LDFLAGS := -m m68kelf
99 KBUILD_CFLAGS += $(call cc-o <<
100 KBUILD_AFLAGS += $(call cc-o <<
101 KBUILD_CFLAGS += $(call cc-o <<
102 78
103 ifdef CONFIG_OBJTOOL !! 79 ifdef CONFIG_SUN3
104 KBUILD_CFLAGS += -fno-jump-t !! 80 LDFLAGS_vmlinux = -N
105 endif 81 endif
106 82
107 KBUILD_RUSTFLAGS += --target=lo !! 83 CHECKFLAGS += -D__mc68000__
108 KBUILD_RUSTFLAGS_KERNEL += -Zdirect-ac <<
109 KBUILD_RUSTFLAGS_MODULE += -Zdirect-ac <<
110 <<
111 ifeq ($(CONFIG_RELOCATABLE),y) <<
112 KBUILD_CFLAGS_KERNEL += -fPIE <<
113 KBUILD_RUSTFLAGS_KERNEL += -Crelocatio <<
114 LDFLAGS_vmlinux += -static -pi <<
115 endif <<
116 84
117 cflags-y += $(call cc-option, -mno-check-zero- <<
118 85
119 ifndef CONFIG_KASAN !! 86 ifdef CONFIG_KGDB
120 cflags-y += -fno-builtin-memcpy -fno-builtin-m !! 87 # If configured for kgdb support, include debugging infos and keep the
>> 88 # frame pointer
>> 89 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
121 endif 90 endif
122 91
123 load-y = 0x9000000000200000 !! 92 #
124 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- !! 93 # Select the assembler head startup code. Order is important. The default
>> 94 # head code is first, processor specific selections can override it after.
>> 95 #
>> 96 head-y := arch/m68k/kernel/head.o
>> 97 head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
>> 98 head-$(CONFIG_M68000) := arch/m68k/68000/head.o
>> 99 head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
125 100
126 drivers-$(CONFIG_PCI) += arch/loonga !! 101 core-y += arch/m68k/
>> 102 libs-y += arch/m68k/lib/
127 103
128 KBUILD_AFLAGS += $(cflags-y) <<
129 KBUILD_CFLAGS += $(cflags-y) <<
130 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo <<
131 104
132 # This is required to get dwarf unwinding tabl !! 105 all: zImage
133 # instead of .eh_frame so we don't discard the <<
134 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
135 106
136 ifdef CONFIG_ARCH_STRICT_ALIGN !! 107 lilo: vmlinux
137 # Don't emit unaligned accesses. !! 108 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
138 # Not all LoongArch cores support unaligned ac !! 109 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
139 # rely on others to provide emulation for thes !! 110 cat vmlinux > $(INSTALL_PATH)/vmlinux
140 KBUILD_CFLAGS += $(call cc-option,-mstrict-ali !! 111 cp System.map $(INSTALL_PATH)/System.map
141 else !! 112 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
142 # Optimise for performance on hardware support <<
143 KBUILD_CFLAGS += $(call cc-option,-mno-strict- <<
144 endif <<
145 113
146 KBUILD_CFLAGS += -isystem $(shell $(CC) -print !! 114 zImage compressed: vmlinux.gz
147 115
148 KBUILD_LDFLAGS += -m $(ld-emul) !! 116 vmlinux.gz: vmlinux
149 117
150 ifdef need-compiler !! 118 ifndef CONFIG_KGDB
151 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 119 cp vmlinux vmlinux.tmp
152 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL !! 120 $(STRIP) vmlinux.tmp
153 sed -e "s/^\#define /-D'/" -e "s/ /'=' !! 121 $(KGZIP) -9c vmlinux.tmp >vmlinux.gz
>> 122 rm vmlinux.tmp
>> 123 else
>> 124 $(KGZIP) -9c vmlinux >vmlinux.gz
154 endif 125 endif
155 126
156 libs-y += arch/loongarch/lib/ !! 127 bzImage: vmlinux.bz2
157 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ <<
158 <<
159 drivers-y += arch/loongarch/cryp <<
160 128
161 # suspend and hibernation support !! 129 vmlinux.bz2: vmlinux
162 drivers-$(CONFIG_PM) += arch/loongarch/powe <<
163 130
164 ifeq ($(KBUILD_EXTMOD),) !! 131 ifndef CONFIG_KGDB
165 prepare: vdso_prepare !! 132 cp vmlinux vmlinux.tmp
166 vdso_prepare: prepare0 !! 133 $(STRIP) vmlinux.tmp
167 $(Q)$(MAKE) $(build)=arch/loongarch/vd !! 134 $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
>> 135 rm vmlinux.tmp
>> 136 else
>> 137 $(KBZIP2) -1c vmlinux >vmlinux.bz2
168 endif 138 endif
169 139
170 vdso-install-y += arch/loongarch/vdso/vdso.so. !! 140 CLEAN_FILES += vmlinux.gz vmlinux.bz2
171 <<
172 all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTB <<
173 <<
174 vmlinuz.efi: vmlinux.efi <<
175 141
176 vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux !! 142 archheaders:
177 $(Q)$(MAKE) $(build)=$(boot) $(bootvar !! 143 $(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
178 144
179 install: 145 install:
180 $(Q)install -D -m 755 $(KBUILD_IMAGE) !! 146 sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
181 $(Q)install -D -m 644 .config $(INSTAL <<
182 $(Q)install -D -m 644 System.map $(INS <<
183 <<
184 define archhelp <<
185 echo ' install - install <<
186 echo <<
187 endef <<
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