1 # SPDX-License-Identifier: GPL-2.0 !! 1 # $Id: Makefile,v 1.52 2002/02/09 19:49:31 davem Exp $
>> 2 # sparc64/Makefile
2 # 3 #
3 # Author: Huacai Chen <chenhuacai@loongson.cn> !! 4 # Makefile for the architecture dependent flags and dependencies on the
4 # Copyright (C) 2020-2022 Loongson Technology !! 5 # 64-bit Sparc.
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 # 6 #
21 # Select the object file format to substitute !! 7 # Copyright (C) 1996,1998 David S. Miller (davem@caip.rutgers.edu)
>> 8 # Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
22 # 9 #
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 10
44 ifdef CONFIG_DYNAMIC_FTRACE !! 11 AFLAGS_vmlinux.lds.o += -Usparc
45 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI <<
46 CC_FLAGS_FTRACE := -fpatchable-function-entry= <<
47 endif <<
48 <<
49 ifdef CONFIG_64BIT <<
50 tool-archpref = $(64bit-tool-archpre <<
51 UTS_MACHINE := loongarch64 <<
52 endif <<
53 12
54 ifneq ($(SUBARCH),$(ARCH)) !! 13 CC := $(shell if gcc -m64 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo gcc; else echo sparc64-linux-gcc; fi )
55 ifeq ($(CROSS_COMPILE),) <<
56 CROSS_COMPILE := $(call cc-cross-prefix, $ <<
57 endif <<
58 endif <<
59 14
60 ifdef CONFIG_64BIT !! 15 NEW_GCC := $(shell if $(CC) -m64 -mcmodel=medlow -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
61 ld-emul = $(64bit-emul) !! 16 NEW_GAS := $(shell if $(LD) -V 2>&1 | grep 'elf64_sparc' > /dev/null; then echo y; else echo n; fi)
62 cflags-y += -mabi=lp64s !! 17 UNDECLARED_REGS := $(shell if $(CC) -c -x assembler /dev/null -Wa,--help | grep undeclared-regs > /dev/null; then echo y; else echo n; fi; )
63 endif !! 18 INLINE_LIMIT := $(shell if $(CC) -m64 -finline-limit=100000 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
64 19
65 cflags-y += -pipe $(CC_ !! 20 export NEW_GCC
66 LDFLAGS_vmlinux += -static -n <<
67 21
68 # When the assembler supports explicit relocat !! 22 ifneq ($(NEW_GAS),y)
69 # GCC may have -mexplicit-relocs off by defaul !! 23 AS = sparc64-linux-as
70 # assembler, so we force it via an option. !! 24 LD = sparc64-linux-ld
71 # !! 25 NM = sparc64-linux-nm
72 # When the assembler does not supports explici !! 26 AR = sparc64-linux-ar
73 # it. Disable it if the compiler supports it. !! 27 RANLIB = sparc64-linux-ranlib
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 28 else
91 cflags-y += $(call cc-o !! 29 AS := $(AS) -64
92 KBUILD_AFLAGS_KERNEL += -Wa,-mla-gl !! 30 LDFLAGS := -m elf64_sparc
93 KBUILD_CFLAGS_KERNEL += -Wa,-mla-gl <<
94 KBUILD_AFLAGS_MODULE += -Wa,-mla-gl <<
95 KBUILD_CFLAGS_MODULE += -fplt -Wa,- <<
96 endif 31 endif
97 32
98 KBUILD_AFLAGS += $(call cc-o !! 33 ifneq ($(UNDECLARED_REGS),y)
99 KBUILD_CFLAGS += $(call cc-o !! 34 CC_UNDECL =
100 KBUILD_AFLAGS += $(call cc-o !! 35 else
101 KBUILD_CFLAGS += $(call cc-o !! 36 CC_UNDECL = -Wa,--undeclared-regs
102 !! 37 AS := $(AS) --undeclared-regs
103 ifdef CONFIG_OBJTOOL <<
104 KBUILD_CFLAGS += -fno-jump-t <<
105 endif <<
106 <<
107 KBUILD_RUSTFLAGS += --target=lo <<
108 KBUILD_RUSTFLAGS_KERNEL += -Zdirect-ac <<
109 KBUILD_RUSTFLAGS_MODULE += -Zdirect-ac <<
110 <<
111 ifeq ($(CONFIG_RELOCATABLE),y) <<
112 KBUILD_CFLAGS_KERNEL += -fPIE <<
113 KBUILD_RUSTFLAGS_KERNEL += -Crelocatio <<
114 LDFLAGS_vmlinux += -static -pi <<
115 endif <<
116 <<
117 cflags-y += $(call cc-option, -mno-check-zero- <<
118 <<
119 ifndef CONFIG_KASAN <<
120 cflags-y += -fno-builtin-memcpy -fno-builtin-m <<
121 endif 38 endif
122 39
123 load-y = 0x9000000000200000 !! 40 ifneq ($(NEW_GCC),y)
124 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- !! 41 CFLAGS := $(CFLAGS) -pipe -mno-fpu -mtune=ultrasparc -mmedlow \
125 !! 42 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare
126 drivers-$(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 43 else
142 # Optimise for performance on hardware support !! 44 CFLAGS := $(CFLAGS) -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
143 KBUILD_CFLAGS += $(call cc-option,-mno-strict- !! 45 -ffixed-g4 -fcall-used-g5 -fcall-used-g7 -Wno-sign-compare \
>> 46 $(CC_UNDECL)
>> 47 AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
144 endif 48 endif
145 49
146 KBUILD_CFLAGS += -isystem $(shell $(CC) -print !! 50 ifeq ($(INLINE_LIMIT),y)
147 !! 51 CFLAGS := $(CFLAGS) -finline-limit=100000
148 KBUILD_LDFLAGS += -m $(ld-emul) <<
149 <<
150 ifdef need-compiler <<
151 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) <<
152 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL <<
153 sed -e "s/^\#define /-D'/" -e "s/ /'=' <<
154 endif 52 endif
155 53
156 libs-y += arch/loongarch/lib/ !! 54 ifeq ($(CONFIG_MCOUNT),y)
157 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ !! 55 CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS))
158 !! 56 CFLAGS := $(CFLAGS) -pg
159 drivers-y += arch/loongarch/cryp <<
160 <<
161 # suspend and hibernation support <<
162 drivers-$(CONFIG_PM) += arch/loongarch/powe <<
163 <<
164 ifeq ($(KBUILD_EXTMOD),) <<
165 prepare: vdso_prepare <<
166 vdso_prepare: prepare0 <<
167 $(Q)$(MAKE) $(build)=arch/loongarch/vd <<
168 endif 57 endif
169 58
170 vdso-install-y += arch/loongarch/vdso/vdso.so. !! 59 head-y := arch/sparc64/kernel/head.o arch/sparc64/kernel/init_task.o
171 60
172 all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTB !! 61 core-y += arch/sparc64/kernel/ arch/sparc64/mm/
>> 62 core-$(CONFIG_SOLARIS_EMUL) += arch/sparc64/solaris/
>> 63 core-y += arch/sparc64/math-emu/
>> 64 libs-y += arch/sparc64/prom/ arch/sparc64/lib/
173 65
174 vmlinuz.efi: vmlinux.efi !! 66 # FIXME: is drivers- right?
>> 67 drivers-$(CONFIG_OPROFILE) += arch/sparc64/oprofile/
175 68
176 vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux !! 69 boot := arch/sparc64/boot
177 $(Q)$(MAKE) $(build)=$(boot) $(bootvar <<
178 70
179 install: !! 71 image tftpboot.img vmlinux.aout: vmlinux
180 $(Q)install -D -m 755 $(KBUILD_IMAGE) !! 72 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
181 $(Q)install -D -m 644 .config $(INSTAL !! 73
182 $(Q)install -D -m 644 System.map $(INS !! 74 archclean:
>> 75 $(Q)$(MAKE) $(clean)=$(boot)
183 76
184 define archhelp 77 define archhelp
185 echo ' install - install !! 78 echo '* vmlinux - Standard sparc64 kernel'
186 echo !! 79 echo ' vmlinux.aout - a.out kernel for sparc64'
>> 80 echo ' tftpboot.img - Image prepared for tftp'
187 endef 81 endef
>> 82
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