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
22 # 14 #
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 <<
44 ifdef CONFIG_DYNAMIC_FTRACE <<
45 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI <<
46 CC_FLAGS_FTRACE := -fpatchable-function-entry= <<
47 endif <<
48 <<
49 ifdef CONFIG_64BIT <<
50 tool-archpref = $(64bit-tool-archpre <<
51 UTS_MACHINE := loongarch64 <<
52 endif <<
53 15
>> 16 KBUILD_DEFCONFIG := multi_defconfig
>> 17
>> 18 # override top level makefile
>> 19 AS += -m68020
>> 20 LDFLAGS := -m m68kelf
>> 21 LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
54 ifneq ($(SUBARCH),$(ARCH)) 22 ifneq ($(SUBARCH),$(ARCH))
55 ifeq ($(CROSS_COMPILE),) !! 23 ifeq ($(CROSS_COMPILE),)
56 CROSS_COMPILE := $(call cc-cross-prefix, $ !! 24 CROSS_COMPILE := $(call cc-cross-prefix, \
57 endif !! 25 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
>> 26 endif
58 endif 27 endif
59 28
60 ifdef CONFIG_64BIT !! 29 ifdef CONFIG_SUN3
61 ld-emul = $(64bit-emul) !! 30 LDFLAGS_vmlinux = -N
62 cflags-y += -mabi=lp64s <<
63 endif 31 endif
64 32
65 cflags-y += -pipe $(CC_ !! 33 CHECKFLAGS += -D__mc68000__
66 LDFLAGS_vmlinux += -static -n <<
67 34
68 # When the assembler supports explicit relocat !! 35 # without -fno-strength-reduce the 53c7xx.c driver fails ;-(
69 # GCC may have -mexplicit-relocs off by defaul !! 36 KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2
70 # assembler, so we force it via an option. <<
71 # <<
72 # When the assembler does not supports explici <<
73 # it. Disable it if the compiler supports it. <<
74 # <<
75 # The combination of a "new" assembler and "ol <<
76 # the rarity of this combo and the extra compl <<
77 # Either upgrade the compiler or downgrade the <<
78 # out if it is the case (by probing for the mo <<
79 # compilers in this case would have support). <<
80 # <<
81 # Also, -mdirect-extern-access is useful in ca <<
82 # relocs, for avoiding unnecessary GOT accesse <<
83 # support though. <<
84 ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS <<
85 cflags-y += $(call cc-o <<
86 KBUILD_CFLAGS_KERNEL += $(call cc-o <<
87 KBUILD_CFLAGS_KERNEL += $(call cc-o <<
88 KBUILD_AFLAGS_MODULE += $(call cc-o <<
89 KBUILD_CFLAGS_MODULE += $(call cc-o <<
90 else <<
91 cflags-y += $(call cc-o <<
92 KBUILD_AFLAGS_KERNEL += -Wa,-mla-gl <<
93 KBUILD_CFLAGS_KERNEL += -Wa,-mla-gl <<
94 KBUILD_AFLAGS_MODULE += -Wa,-mla-gl <<
95 KBUILD_CFLAGS_MODULE += -fplt -Wa,- <<
96 endif <<
97 37
98 KBUILD_AFLAGS += $(call cc-o !! 38 # enable processor switch if compiled only for a single cpu
99 KBUILD_CFLAGS += $(call cc-o !! 39 ifndef CONFIG_M68020
100 KBUILD_AFLAGS += $(call cc-o !! 40 ifndef CONFIG_M68030
101 KBUILD_CFLAGS += $(call cc-o <<
102 41
103 ifdef CONFIG_OBJTOOL !! 42 ifndef CONFIG_M68060
104 KBUILD_CFLAGS += -fno-jump-t !! 43 KBUILD_CFLAGS += -m68040
105 endif 44 endif
106 45
107 KBUILD_RUSTFLAGS += --target=lo !! 46 ifndef CONFIG_M68040
108 KBUILD_RUSTFLAGS_KERNEL += -Zdirect-ac !! 47 KBUILD_CFLAGS += -m68060
109 KBUILD_RUSTFLAGS_MODULE += -Zdirect-ac <<
110 <<
111 ifeq ($(CONFIG_RELOCATABLE),y) <<
112 KBUILD_CFLAGS_KERNEL += -fPIE <<
113 KBUILD_RUSTFLAGS_KERNEL += -Crelocatio <<
114 LDFLAGS_vmlinux += -static -pi <<
115 endif 48 endif
116 49
117 cflags-y += $(call cc-option, -mno-check-zero- !! 50 endif
118 <<
119 ifndef CONFIG_KASAN <<
120 cflags-y += -fno-builtin-memcpy -fno-builtin-m <<
121 endif 51 endif
122 52
123 load-y = 0x9000000000200000 !! 53 ifdef CONFIG_KGDB
124 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- !! 54 # If configured for kgdb support, include debugging infos and keep the
125 !! 55 # frame pointer
126 drivers-$(CONFIG_PCI) += arch/loonga !! 56 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
127 !! 57 endif
128 KBUILD_AFLAGS += $(cflags-y) <<
129 KBUILD_CFLAGS += $(cflags-y) <<
130 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo <<
131 <<
132 # This is required to get dwarf unwinding tabl <<
133 # instead of .eh_frame so we don't discard the <<
134 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
135 58
136 ifdef CONFIG_ARCH_STRICT_ALIGN !! 59 ifndef CONFIG_SUN3
137 # Don't emit unaligned accesses. !! 60 head-y := arch/m68k/kernel/head.o
138 # Not all LoongArch cores support unaligned ac <<
139 # rely on others to provide emulation for thes <<
140 KBUILD_CFLAGS += $(call cc-option,-mstrict-ali <<
141 else 61 else
142 # Optimise for performance on hardware support !! 62 head-y := arch/m68k/kernel/sun3-head.o
143 KBUILD_CFLAGS += $(call cc-option,-mno-strict- <<
144 endif 63 endif
145 64
146 KBUILD_CFLAGS += -isystem $(shell $(CC) -print !! 65 core-y += arch/m68k/kernel/ arch/m68k/mm/
>> 66 libs-y += arch/m68k/lib/
147 67
148 KBUILD_LDFLAGS += -m $(ld-emul) !! 68 core-$(CONFIG_Q40) += arch/m68k/q40/
149 !! 69 core-$(CONFIG_AMIGA) += arch/m68k/amiga/
150 ifdef need-compiler !! 70 core-$(CONFIG_ATARI) += arch/m68k/atari/
151 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 71 core-$(CONFIG_MAC) += arch/m68k/mac/
152 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL !! 72 core-$(CONFIG_HP300) += arch/m68k/hp300/
153 sed -e "s/^\#define /-D'/" -e "s/ /'=' !! 73 core-$(CONFIG_APOLLO) += arch/m68k/apollo/
>> 74 core-$(CONFIG_MVME147) += arch/m68k/mvme147/
>> 75 core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/
>> 76 core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/
>> 77 core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/
>> 78 core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/
>> 79 core-$(CONFIG_M68040) += arch/m68k/fpsp040/
>> 80 core-$(CONFIG_M68060) += arch/m68k/ifpsp060/
>> 81 core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/
>> 82
>> 83 all: zImage
>> 84
>> 85 lilo: vmlinux
>> 86 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
>> 87 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
>> 88 cat vmlinux > $(INSTALL_PATH)/vmlinux
>> 89 cp System.map $(INSTALL_PATH)/System.map
>> 90 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
>> 91
>> 92 zImage compressed: vmlinux.gz
>> 93
>> 94 vmlinux.gz: vmlinux
>> 95
>> 96 ifndef CONFIG_KGDB
>> 97 cp vmlinux vmlinux.tmp
>> 98 $(STRIP) vmlinux.tmp
>> 99 gzip -9c vmlinux.tmp >vmlinux.gz
>> 100 rm vmlinux.tmp
>> 101 else
>> 102 gzip -9c vmlinux >vmlinux.gz
154 endif 103 endif
155 104
156 libs-y += arch/loongarch/lib/ !! 105 bzImage: vmlinux.bz2
157 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ <<
158 106
159 drivers-y += arch/loongarch/cryp !! 107 vmlinux.bz2: vmlinux
160 108
161 # suspend and hibernation support !! 109 ifndef CONFIG_KGDB
162 drivers-$(CONFIG_PM) += arch/loongarch/powe !! 110 cp vmlinux vmlinux.tmp
163 !! 111 $(STRIP) vmlinux.tmp
164 ifeq ($(KBUILD_EXTMOD),) !! 112 bzip2 -1c vmlinux.tmp >vmlinux.bz2
165 prepare: vdso_prepare !! 113 rm vmlinux.tmp
166 vdso_prepare: prepare0 !! 114 else
167 $(Q)$(MAKE) $(build)=arch/loongarch/vd !! 115 bzip2 -1c vmlinux >vmlinux.bz2
168 endif 116 endif
169 117
170 vdso-install-y += arch/loongarch/vdso/vdso.so. !! 118 archclean:
171 !! 119 rm -f vmlinux.gz vmlinux.bz2
172 all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTB <<
173 <<
174 vmlinuz.efi: vmlinux.efi <<
175 <<
176 vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux <<
177 $(Q)$(MAKE) $(build)=$(boot) $(bootvar <<
178 120
179 install: 121 install:
180 $(Q)install -D -m 755 $(KBUILD_IMAGE) !! 122 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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