1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # Author: Huacai Chen <chenhuacai@loongson.cn> !! 2 # sparc/Makefile
4 # Copyright (C) 2020-2022 Loongson Technology !! 3 #
5 !! 4 # Makefile for the architecture dependent flags and dependencies on the
6 boot := arch/loongarch/boot !! 5 # Sparc and sparc64.
7 !! 6 #
8 KBUILD_DEFCONFIG := loongson3_defconfig !! 7 # Copyright (C) 1994,1996,1998 David S. Miller (davem@caip.rutgers.edu)
9 KBUILD_DTBS := dtbs !! 8 # Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
10 <<
11 image-name-y := vmlinux <<
12 image-name-$(CONFIG_EFI_ZBOOT) := vmlinuz <<
13 9
14 ifndef CONFIG_EFI_STUB !! 10 # We are not yet configured - so test on arch
15 KBUILD_IMAGE := $(boot)/vmlinux.elf !! 11 ifeq ($(ARCH),sparc)
>> 12 KBUILD_DEFCONFIG := sparc32_defconfig
16 else 13 else
17 KBUILD_IMAGE := $(boot)/$(image-name-y).efi !! 14 KBUILD_DEFCONFIG := sparc64_defconfig
18 endif 15 endif
19 16
>> 17 ifeq ($(CONFIG_SPARC32),y)
>> 18 #####
>> 19 # sparc32
20 # 20 #
21 # Select the object file format to substitute <<
22 # <<
23 64bit-tool-archpref = loongarch64 <<
24 32bit-bfd = elf32-loongarch <<
25 64bit-bfd = elf64-loongarch <<
26 32bit-emul = elf32loongarch <<
27 64bit-emul = elf64loongarch <<
28 <<
29 CC_FLAGS_FPU := -mfpu=64 <<
30 CC_FLAGS_NO_FPU := -msoft-float <<
31 <<
32 ifdef CONFIG_UNWINDER_ORC <<
33 orc_hash_h := arch/$(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 21
44 ifdef CONFIG_DYNAMIC_FTRACE !! 22 #
45 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI !! 23 # Uncomment the first KBUILD_CFLAGS if you are doing kgdb source level
46 CC_FLAGS_FTRACE := -fpatchable-function-entry= !! 24 # debugging of the kernel to get the proper debugging information.
47 endif <<
48 25
49 ifdef CONFIG_64BIT !! 26 AS := $(AS) -32
50 tool-archpref = $(64bit-tool-archpre !! 27 LDFLAGS := -m elf32_sparc
51 UTS_MACHINE := loongarch64 !! 28 CHECKFLAGS += -D__sparc__
52 endif !! 29 export BITS := 32
>> 30 UTS_MACHINE := sparc
53 31
54 ifneq ($(SUBARCH),$(ARCH)) !! 32 #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
55 ifeq ($(CROSS_COMPILE),) !! 33 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
56 CROSS_COMPILE := $(call cc-cross-prefix, $ !! 34 KBUILD_AFLAGS += -m32 -Wa,-Av8
57 endif <<
58 endif <<
59 35
60 ifdef CONFIG_64BIT !! 36 #LDFLAGS_vmlinux = -N -Ttext 0xf0004000
61 ld-emul = $(64bit-emul) !! 37 # Since 2.5.40, the first stage is left not btfix-ed.
62 cflags-y += -mabi=lp64s !! 38 # Actual linking is done with "make image".
63 endif !! 39 LDFLAGS_vmlinux = -r
64 <<
65 cflags-y += -pipe $(CC_ <<
66 LDFLAGS_vmlinux += -static -n <<
67 40
68 # When the assembler supports explicit relocat <<
69 # GCC may have -mexplicit-relocs off by defaul <<
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 41 else
91 cflags-y += $(call cc-o !! 42 #####
92 KBUILD_AFLAGS_KERNEL += -Wa,-mla-gl !! 43 # sparc64
93 KBUILD_CFLAGS_KERNEL += -Wa,-mla-gl !! 44 #
94 KBUILD_AFLAGS_MODULE += -Wa,-mla-gl <<
95 KBUILD_CFLAGS_MODULE += -fplt -Wa,- <<
96 endif <<
97 <<
98 KBUILD_AFLAGS += $(call cc-o <<
99 KBUILD_CFLAGS += $(call cc-o <<
100 KBUILD_AFLAGS += $(call cc-o <<
101 KBUILD_CFLAGS += $(call cc-o <<
102 45
103 ifdef CONFIG_OBJTOOL !! 46 CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64
104 KBUILD_CFLAGS += -fno-jump-t <<
105 endif <<
106 47
107 KBUILD_RUSTFLAGS += --target=lo !! 48 LDFLAGS := -m elf64_sparc
108 KBUILD_RUSTFLAGS_KERNEL += -Zdirect-ac !! 49 export BITS := 64
109 KBUILD_RUSTFLAGS_MODULE += -Zdirect-ac !! 50 UTS_MACHINE := sparc64
110 <<
111 ifeq ($(CONFIG_RELOCATABLE),y) <<
112 KBUILD_CFLAGS_KERNEL += -fPIE <<
113 KBUILD_RUSTFLAGS_KERNEL += -Crelocatio <<
114 LDFLAGS_vmlinux += -static -pi <<
115 endif <<
116 51
117 cflags-y += $(call cc-option, -mno-check-zero- !! 52 KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
>> 53 -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
>> 54 -Wa,--undeclared-regs
>> 55 KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
>> 56 KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs
118 57
119 ifndef CONFIG_KASAN !! 58 ifeq ($(CONFIG_MCOUNT),y)
120 cflags-y += -fno-builtin-memcpy -fno-builtin-m !! 59 KBUILD_CFLAGS += -pg
121 endif 60 endif
122 61
123 load-y = 0x9000000000200000 <<
124 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- <<
125 <<
126 drivers-$(CONFIG_PCI) += arch/loonga <<
127 <<
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 <<
136 ifdef CONFIG_ARCH_STRICT_ALIGN <<
137 # Don't emit unaligned accesses. <<
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 <<
142 # Optimise for performance on hardware support <<
143 KBUILD_CFLAGS += $(call cc-option,-mno-strict- <<
144 endif 62 endif
145 63
146 KBUILD_CFLAGS += -isystem $(shell $(CC) -print !! 64 head-y := arch/sparc/kernel/head_$(BITS).o
>> 65 head-y += arch/sparc/kernel/init_task.o
147 66
148 KBUILD_LDFLAGS += -m $(ld-emul) !! 67 core-y += arch/sparc/kernel/
>> 68 core-y += arch/sparc/mm/ arch/sparc/math-emu/
149 69
150 ifdef need-compiler !! 70 libs-y += arch/sparc/prom/
151 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 71 libs-y += arch/sparc/lib/
152 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL <<
153 sed -e "s/^\#define /-D'/" -e "s/ /'=' <<
154 endif <<
155 <<
156 libs-y += arch/loongarch/lib/ <<
157 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ <<
158 72
159 drivers-y += arch/loongarch/cryp !! 73 drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
160 74
161 # suspend and hibernation support !! 75 # Export what is needed by arch/sparc/boot/Makefile
162 drivers-$(CONFIG_PM) += arch/loongarch/powe !! 76 export VMLINUX_INIT VMLINUX_MAIN
>> 77 VMLINUX_INIT := $(head-y) $(init-y)
>> 78 VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/
>> 79 VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y)
>> 80 VMLINUX_MAIN += $(drivers-y) $(net-y)
163 81
164 ifeq ($(KBUILD_EXTMOD),) !! 82 ifdef CONFIG_KALLSYMS
165 prepare: vdso_prepare !! 83 export kallsyms.o := .tmp_kallsyms2.o
166 vdso_prepare: prepare0 <<
167 $(Q)$(MAKE) $(build)=arch/loongarch/vd <<
168 endif 84 endif
169 85
170 vdso-install-y += arch/loongarch/vdso/vdso.so. !! 86 boot := arch/sparc/boot
171 87
172 all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTB !! 88 # Default target
>> 89 all: zImage
173 90
174 vmlinuz.efi: vmlinux.efi !! 91 image zImage tftpboot.img vmlinux.aout: vmlinux
>> 92 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
175 93
176 vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux !! 94 archclean:
177 $(Q)$(MAKE) $(build)=$(boot) $(bootvar !! 95 $(Q)$(MAKE) $(clean)=$(boot)
178 96
179 install: !! 97 # This is the image used for packaging
180 $(Q)install -D -m 755 $(KBUILD_IMAGE) !! 98 KBUILD_IMAGE := $(boot)/zImage
181 $(Q)install -D -m 644 .config $(INSTAL <<
182 $(Q)install -D -m 644 System.map $(INS <<
183 99
>> 100 # Don't use tabs in echo arguments.
>> 101 ifeq ($(ARCH),sparc)
>> 102 define archhelp
>> 103 echo '* image - kernel image ($(boot)/image)'
>> 104 echo '* zImage - stripped kernel image ($(boot)/zImage)'
>> 105 echo ' tftpboot.img - image prepared for tftp'
>> 106 endef
>> 107 else
184 define archhelp 108 define archhelp
185 echo ' install - install !! 109 echo '* vmlinux - standard sparc64 kernel'
186 echo !! 110 echo '* zImage - stripped and compressed sparc64 kernel ($(boot)/zImage)'
>> 111 echo ' vmlinux.aout - a.out kernel for sparc64'
>> 112 echo ' tftpboot.img - image prepared for tftp'
187 endef 113 endef
>> 114 endif
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