1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !! 2 # This file is subject to the terms and conditions of the GNU General Public
>> 3 # License. See the file "COPYING" in the main directory of this archive
>> 4 # for more details.
4 # 5 #
>> 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
>> 7 # DECStation modifications by Paul M. Antoine, 1996
>> 8 # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
>> 9 #
>> 10 # This file is included by the global makefile so that you can add your own
>> 11 # architecture-specific flags and dependencies. Remember to do have actions
>> 12 # for "archclean" cleaning up for this architecture.
>> 13 #
>> 14
>> 15 archscripts: scripts_basic
>> 16 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
>> 17 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)
>> 18 $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check
>> 19 endif
>> 20 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
5 21
6 KBUILD_DEFCONFIG := haps_hs_smp_defconfig !! 22 KBUILD_DEFCONFIG := 32r2el_defconfig
>> 23 KBUILD_DTBS := dtbs
7 24
8 ifeq ($(CROSS_COMPILE),) !! 25 #
9 CROSS_COMPILE := $(call cc-cross-prefix, arc-l !! 26 # Select the object file format to substitute into the linker script.
>> 27 #
>> 28 ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 29 32bit-tool-archpref = mipsel
>> 30 64bit-tool-archpref = mips64el
>> 31 32bit-bfd = elf32-tradlittlemips
>> 32 64bit-bfd = elf64-tradlittlemips
>> 33 32bit-emul = elf32ltsmip
>> 34 64bit-emul = elf64ltsmip
>> 35 else
>> 36 32bit-tool-archpref = mips
>> 37 64bit-tool-archpref = mips64
>> 38 32bit-bfd = elf32-tradbigmips
>> 39 64bit-bfd = elf64-tradbigmips
>> 40 32bit-emul = elf32btsmip
>> 41 64bit-emul = elf64btsmip
10 endif 42 endif
11 43
12 cflags-y += -fno-common -pipe -fno-buil !! 44 ifdef CONFIG_32BIT
>> 45 tool-archpref = $(32bit-tool-archpref)
>> 46 UTS_MACHINE := mips
>> 47 endif
>> 48 ifdef CONFIG_64BIT
>> 49 tool-archpref = $(64bit-tool-archpref)
>> 50 UTS_MACHINE := mips64
>> 51 endif
13 52
14 tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mc !! 53 ifneq ($(SUBARCH),$(ARCH))
15 tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mc !! 54 ifeq ($(CROSS_COMPILE),)
>> 55 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
>> 56 endif
>> 57 endif
16 58
17 ifeq ($(CONFIG_ARC_TUNE_MCPU),) !! 59 ifdef CONFIG_FUNCTION_GRAPH_TRACER
18 cflags-y += $(t !! 60 ifndef KBUILD_MCOUNT_RA_ADDRESS
19 else !! 61 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
20 tune-mcpu := $(C !! 62 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
21 ifneq ($(call cc-option,$(tune-mcpu)),) !! 63 endif
22 cflags-y += $(t !! 64 endif
23 else <<
24 # The flag provided by 'CONFIG_ARC_TUNE_MCPU' <<
25 # (probably the compiler is too old). Use ISA <<
26 $(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU f <<
27 cflags-y += $(t <<
28 endif 65 endif
>> 66 cflags-y += $(call cc-option, -mno-check-zero-division)
>> 67
>> 68 ifdef CONFIG_32BIT
>> 69 ld-emul = $(32bit-emul)
>> 70 vmlinux-32 = vmlinux
>> 71 vmlinux-64 = vmlinux.64
>> 72
>> 73 cflags-y += -mabi=32
29 endif 74 endif
30 75
31 ifdef CONFIG_ARC_CURR_IN_REG !! 76 ifdef CONFIG_64BIT
32 # For a global register definition, make sure !! 77 ld-emul = $(64bit-emul)
33 # We had a customer reported bug where some co !! 78 vmlinux-32 = vmlinux.32
34 # any kernel headers, and missing the global r !! 79 vmlinux-64 = vmlinux
35 # Can't do unconditionally because of recursiv !! 80
36 # due to <linux/thread_info.h> !! 81 cflags-y += -mabi=64
37 LINUXINCLUDE += -include $(srctree)/arch/a <<
38 cflags-y += -ffixed-gp <<
39 endif 82 endif
40 83
41 cflags-y += -fs !! 84 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
>> 85 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
>> 86 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
42 87
43 cflags-$(CONFIG_ARC_HAS_LLSC) += -ml !! 88 #
44 cflags-$(CONFIG_ARC_HAS_SWAPE) += -ms !! 89 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
>> 90 # code since it only slows down the whole thing. At some point we might make
>> 91 # use of global pointer optimizations but their use of $28 conflicts with
>> 92 # the current pointer optimization.
>> 93 #
>> 94 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
>> 95 # machines may also. Since BFD is incredibly buggy with respect to
>> 96 # crossformat linking we rely on the elf2ecoff tool for format conversion.
>> 97 #
>> 98 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
>> 99 cflags-y += -msoft-float
>> 100 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
>> 101 KBUILD_AFLAGS_MODULE += -mlong-calls
>> 102 KBUILD_CFLAGS_MODULE += -mlong-calls
45 103
46 ifdef CONFIG_ISA_ARCV2 !! 104 ifeq ($(CONFIG_RELOCATABLE),y)
>> 105 LDFLAGS_vmlinux += --emit-relocs
>> 106 endif
47 107
48 ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS !! 108 #
49 cflags-y += -mu !! 109 # pass -msoft-float to GAS if it supports it. However on newer binutils
50 else !! 110 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
51 cflags-y += -mn !! 111 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 112 #
>> 113 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
>> 114 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
52 endif 115 endif
53 116
54 ifndef CONFIG_ARC_HAS_LL64 !! 117 cflags-y += -ffreestanding
55 cflags-y += -mn !! 118
>> 119 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
>> 120 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
>> 121
>> 122 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
>> 123 -fno-omit-frame-pointer
>> 124
>> 125 # Some distribution-specific toolchains might pass the -fstack-check
>> 126 # option during the build, which adds a simple stack-probe at the beginning
>> 127 # of every function. This stack probe is to ensure that there is enough
>> 128 # stack space, else a SEGV is generated. This is not desirable for MIPS
>> 129 # as kernel stacks are small, placed in unmapped virtual memory, and do not
>> 130 # grow when overflowed. Especially on SGI IP27 platforms, this check will
>> 131 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
>> 132 #
>> 133 # In disassembly, this stack probe appears at the top of a function as:
>> 134 # sd zero,<offset>(sp)
>> 135 # Where <offset> is a negative value.
>> 136 #
>> 137 cflags-y += -fno-stack-check
>> 138
>> 139 # binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes,
>> 140 # supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll
>> 141 # instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h
>> 142 # for a description).
>> 143 #
>> 144 # We disable this in order to prevent the assembler meddling with the
>> 145 # instruction that labels refer to, ie. if we label an ll instruction:
>> 146 #
>> 147 # 1: ll v0, 0(a0)
>> 148 #
>> 149 # ...then with the assembler fix applied the label may actually point at a sync
>> 150 # instruction inserted by the assembler, and if we were using the label in an
>> 151 # exception table the table would no longer contain the address of the ll
>> 152 # instruction.
>> 153 #
>> 154 # Avoid this by explicitly disabling that assembler behaviour.
>> 155 #
>> 156 cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
>> 157
>> 158 #
>> 159 # CPU-dependent compiler/assembler options for optimization.
>> 160 #
>> 161 cflags-$(CONFIG_CPU_R3000) += -march=r3000
>> 162 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
>> 163 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
>> 164 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
>> 165 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
>> 166 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
>> 167 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
>> 168 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
>> 169 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg
>> 170 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
>> 171 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
>> 172 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap
>> 173 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap
>> 174 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
>> 175 cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg
>> 176 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
>> 177 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
>> 178 -Wa,--trap
>> 179 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
>> 180 -Wa,--trap
>> 181 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
>> 182 -Wa,--trap
>> 183 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
>> 184 -Wa,--trap
>> 185 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
>> 186 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
>> 187 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
>> 188 -Wa,--trap
>> 189 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 190 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 191 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
56 endif 192 endif
>> 193 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
>> 194 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
57 195
58 ifndef CONFIG_ARC_HAS_DIV_REM !! 196 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
59 cflags-y += -mn !! 197 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
>> 198 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
>> 199
>> 200 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
>> 201 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
>> 202 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
>> 203 # similar directives in the kernel will spam the build logs with the following warnings:
>> 204 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
>> 205 # or
>> 206 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
>> 207 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
>> 208 # been fixed properly.
>> 209 mips-cflags := $(cflags-y)
>> 210 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
>> 211 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
>> 212 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
>> 213 endif
>> 214 ifeq ($(CONFIG_CPU_MICROMIPS),y)
>> 215 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
>> 216 cflags-$(micromips-ase) += -mmicromips
>> 217 endif
>> 218 ifeq ($(CONFIG_CPU_HAS_MSA),y)
>> 219 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
>> 220 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
60 endif 221 endif
>> 222 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
>> 223 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
>> 224 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
>> 225 # only warns
>> 226 xpa-cflags-y := $(mips-cflags)
>> 227 xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
>> 228 toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
>> 229 cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
>> 230 toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
>> 231 cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
>> 232 toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
>> 233 cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP
>> 234 toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
>> 235 cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV
>> 236
>> 237 #
>> 238 # Firmware support
>> 239 #
>> 240 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
>> 241 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
>> 242 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
>> 243 libs-y += arch/mips/fw/lib/
61 244
>> 245 #
>> 246 # Kernel compression
>> 247 #
>> 248 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 249 COMPRESSION_FNAME = vmlinuz
>> 250 else
>> 251 COMPRESSION_FNAME = vmlinux
62 endif 252 endif
63 253
64 cfi := $(call as-instr,.cfi_startproc\n.cfi_en !! 254 #
65 cflags-$(CONFIG_ARC_DW2_UNWIND) += -fa !! 255 # Board-dependent options and extra files
>> 256 #
>> 257 include arch/mips/Kbuild.platforms
66 258
67 # small data is default for elf32 tool-chain. !! 259 ifdef CONFIG_PHYSICAL_START
68 # This also allows repurposing GP as scratch r !! 260 load-y = $(CONFIG_PHYSICAL_START)
69 disable_small_data := y !! 261 endif
70 cflags-$(disable_small_data) += -mn <<
71 262
72 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb !! 263 entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
73 ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB !! 264 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
>> 265 drivers-$(CONFIG_PCI) += arch/mips/pci/
74 266
75 LIBGCC = $(shell $(CC) $(cflags-y) --print-li !! 267 #
>> 268 # Automatically detect the build format. By default we choose
>> 269 # the elf format according to the load address.
>> 270 # We can always force a build with a 64-bits symbol format by
>> 271 # passing 'KBUILD_SYM32=no' option to the make's command line.
>> 272 #
>> 273 ifdef CONFIG_64BIT
>> 274 ifndef KBUILD_SYM32
>> 275 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
>> 276 KBUILD_SYM32 = y
>> 277 endif
>> 278 endif
>> 279
>> 280 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
>> 281 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
>> 282 else
>> 283 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
>> 284 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
>> 285 endif
>> 286 endif
>> 287 endif
76 288
77 # Modules with short calls might break for cal !! 289 # When linking a 32-bit executable the LLVM linker cannot cope with a
78 KBUILD_CFLAGS_MODULE += -mlong-calls -mno-m !! 290 # 32-bit load address that has been sign-extended to 64 bits. Simply
>> 291 # remove the upper 32 bits then, as it is safe to do so with other
>> 292 # linkers.
>> 293 ifdef CONFIG_64BIT
>> 294 load-ld = $(load-y)
>> 295 else
>> 296 load-ld = $(subst 0xffffffff,0x,$(load-y))
>> 297 endif
79 298
80 # Finally dump eveything into kernel build sys !! 299 KBUILD_AFLAGS += $(cflags-y)
81 KBUILD_CFLAGS += $(cflags-y) 300 KBUILD_CFLAGS += $(cflags-y)
82 KBUILD_AFLAGS += $(KBUILD_CFLAGS) !! 301 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
83 KBUILD_LDFLAGS += $(ldflags-y) !! 302 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
>> 303
>> 304 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
>> 305 LINKER_LOAD_ADDRESS=$(load-ld) \
>> 306 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
>> 307 PLATFORM="$(platform-y)" \
>> 308 ITS_INPUTS="$(its-y)"
>> 309 ifdef CONFIG_32BIT
>> 310 bootvars-y += ADDR_BITS=32
>> 311 endif
>> 312 ifdef CONFIG_64BIT
>> 313 bootvars-y += ADDR_BITS=64
>> 314 endif
>> 315
>> 316 # This is required to get dwarf unwinding tables into .debug_frame
>> 317 # instead of .eh_frame so we don't discard them.
>> 318 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
>> 319
>> 320 KBUILD_LDFLAGS += -m $(ld-emul)
>> 321
>> 322 ifdef CONFIG_MIPS
>> 323 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>> 324 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
>> 325 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
>> 326 endif
>> 327
>> 328 OBJCOPYFLAGS += --remove-section=.reginfo
>> 329
>> 330 head-y := arch/mips/kernel/head.o
>> 331
>> 332 libs-y += arch/mips/lib/
>> 333 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
>> 334
>> 335 # See arch/mips/Kbuild for content of core part of the kernel
>> 336 core-y += arch/mips/
>> 337
>> 338 drivers-y += arch/mips/crypto/
>> 339
>> 340 # suspend and hibernation support
>> 341 drivers-$(CONFIG_PM) += arch/mips/power/
>> 342
>> 343 # boot image targets (arch/mips/boot/)
>> 344 boot-y := vmlinux.bin
>> 345 boot-y += vmlinux.ecoff
>> 346 boot-y += vmlinux.srec
>> 347 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 348 boot-y += uImage
>> 349 boot-y += uImage.bin
>> 350 boot-y += uImage.bz2
>> 351 boot-y += uImage.gz
>> 352 boot-y += uImage.lzma
>> 353 boot-y += uImage.lzo
>> 354 endif
>> 355 boot-y += vmlinux.itb
>> 356 boot-y += vmlinux.gz.itb
>> 357 boot-y += vmlinux.bz2.itb
>> 358 boot-y += vmlinux.lzma.itb
>> 359 boot-y += vmlinux.lzo.itb
>> 360
>> 361 # compressed boot image targets (arch/mips/boot/compressed/)
>> 362 bootz-y := vmlinuz
>> 363 bootz-y += vmlinuz.bin
>> 364 bootz-y += vmlinuz.ecoff
>> 365 bootz-y += vmlinuz.srec
>> 366 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 367 bootz-y += uzImage.bin
>> 368 endif
>> 369 bootz-y += vmlinuz.itb
>> 370
>> 371 #
>> 372 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
>> 373 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
>> 374 # convert to ECOFF using elf2ecoff.
>> 375 #
>> 376 quiet_cmd_32 = OBJCOPY $@
>> 377 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 378 vmlinux.32: vmlinux
>> 379 $(call cmd,32)
>> 380
>> 381 #
>> 382 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
>> 383 # ELF files from 32-bit files by conversion.
>> 384 #
>> 385 quiet_cmd_64 = OBJCOPY $@
>> 386 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 387 vmlinux.64: vmlinux
>> 388 $(call cmd,64)
>> 389
>> 390 all: $(all-y) $(KBUILD_DTBS)
>> 391
>> 392 # boot
>> 393 $(boot-y): $(vmlinux-32) FORCE
>> 394 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
>> 395 $(bootvars-y) arch/mips/boot/$@
>> 396
>> 397 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 398 # boot/compressed
>> 399 $(bootz-y): $(vmlinux-32) FORCE
>> 400 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
>> 401 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@
>> 402 else
>> 403 vmlinuz: FORCE
>> 404 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
>> 405 /bin/false
>> 406 endif
>> 407
>> 408
>> 409 CLEAN_FILES += vmlinux.32 vmlinux.64
>> 410
>> 411 # device-trees
>> 412 core-y += arch/mips/boot/dts/
>> 413
>> 414 archprepare:
>> 415 ifdef CONFIG_MIPS32_N32
>> 416 @$(kecho) ' Checking missing-syscalls for N32'
>> 417 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
>> 418 endif
>> 419 ifdef CONFIG_MIPS32_O32
>> 420 @$(kecho) ' Checking missing-syscalls for O32'
>> 421 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
>> 422 endif
84 423
85 # w/o this dtb won't embed into kernel binary !! 424 install:
86 core-y += arch/arc/boot/dts/ !! 425 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
>> 426 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 427 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
>> 428 endif
>> 429 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
>> 430 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
87 431
88 core-y += arch/arc/pl !! 432 archclean:
89 core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/pl !! 433 $(Q)$(MAKE) $(clean)=arch/mips/boot
90 core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/pl !! 434 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
91 core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/pl !! 435 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
>> 436
>> 437 archheaders:
>> 438 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
>> 439
>> 440 define archhelp
>> 441 echo ' install - install kernel into $(INSTALL_PATH)'
>> 442 echo ' vmlinux.ecoff - ECOFF boot image'
>> 443 echo ' vmlinux.bin - Raw binary boot image'
>> 444 echo ' vmlinux.srec - SREC boot image'
>> 445 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
>> 446 echo ' vmlinuz - Compressed boot(zboot) image'
>> 447 echo ' vmlinuz.ecoff - ECOFF zboot image'
>> 448 echo ' vmlinuz.bin - Raw binary zboot image'
>> 449 echo ' vmlinuz.srec - SREC zboot image'
>> 450 echo ' uImage - U-Boot image'
>> 451 echo ' uImage.bin - U-Boot image (uncompressed)'
>> 452 echo ' uImage.bz2 - U-Boot image (bz2)'
>> 453 echo ' uImage.gz - U-Boot image (gzip)'
>> 454 echo ' uImage.lzma - U-Boot image (lzma)'
>> 455 echo ' uImage.lzo - U-Boot image (lzo)'
>> 456 echo ' uzImage.bin - U-Boot image (self-extracting)'
>> 457 echo
>> 458 echo ' These will be default as appropriate for a configured platform.'
>> 459 echo
>> 460 echo ' If you are targeting a system supported by generic kernels you may'
>> 461 echo ' configure the kernel for a given architecture target like so:'
>> 462 echo
>> 463 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
>> 464 echo
>> 465 echo ' Where BOARDS is some subset of the following:'
>> 466 for board in $(sort $(BOARDS)); do echo " $${board}"; done
>> 467 echo
>> 468 echo ' Specifically the following generic default configurations are'
>> 469 echo ' supported:'
>> 470 echo
>> 471 $(foreach cfg,$(generic_defconfigs),
>> 472 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
>> 473 echo
>> 474 echo ' The following legacy default configurations have been converted to'
>> 475 echo ' generic and can still be used:'
>> 476 echo
>> 477 $(foreach cfg,$(sort $(legacy_defconfigs)),
>> 478 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
>> 479 echo
>> 480 echo ' Otherwise, the following default configurations are available:'
>> 481 endef
92 482
93 libs-y += arch/arc/lib/ $(LIBGCC) !! 483 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
>> 484 generic_defconfigs :=
94 485
95 boot := arch/arc/boot !! 486 #
>> 487 # If the user generates a generic kernel configuration without specifying a
>> 488 # list of boards to include the config fragments for, default to including all
>> 489 # available board config fragments.
>> 490 #
>> 491 ifeq ($(BOARDS),)
>> 492 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
>> 493 endif
96 494
97 boot_targets := uImage.bin uImage.gz uImage.lz !! 495 #
>> 496 # Generic kernel configurations which merge generic_defconfig with the
>> 497 # appropriate config fragments from arch/mips/configs/generic/, resulting in
>> 498 # the ability to easily configure the kernel for a given architecture,
>> 499 # endianness & set of boards without duplicating the needed configuration in
>> 500 # hundreds of defconfig files.
>> 501 #
>> 502 define gen_generic_defconfigs
>> 503 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
>> 504 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
>> 505 generic_defconfigs += $$(target)
>> 506 $$(target): $(generic_config_dir)/$(bits)$(rev).config
>> 507 $$(target): $(generic_config_dir)/$(endian).config
>> 508 )))
>> 509 endef
>> 510
>> 511 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
>> 512 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
>> 513
>> 514 define describe_generic_defconfig
>> 515 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
>> 516 endef
>> 517
>> 518 .PHONY: $(generic_defconfigs)
>> 519 $(generic_defconfigs):
>> 520 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
>> 521 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
>> 522 grep -Ev '^#'
>> 523 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
>> 524 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
>> 525 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
>> 526 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
>> 527 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
>> 528 "$(origin BOARDS)" $(BOARDS)
>> 529 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
>> 530
>> 531 #
>> 532 # Prevent generic merge_config rules attempting to merge single fragments
>> 533 #
>> 534 $(generic_config_dir)/%.config: ;
>> 535
>> 536 #
>> 537 # Prevent direct use of generic_defconfig, which is intended to be used as the
>> 538 # basis of the various ISA-specific targets generated above.
>> 539 #
>> 540 .PHONY: generic_defconfig
>> 541 generic_defconfig:
>> 542 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
>> 543 $(Q)echo "used via an ISA-specific target from the following list:"
>> 544 $(Q)echo
>> 545 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
>> 546 $(Q)echo
>> 547 $(Q)false
>> 548
>> 549 #
>> 550 # Legacy defconfig compatibility - these targets used to be real defconfigs but
>> 551 # now that the boards have been converted to use the generic kernel they are
>> 552 # wrappers around the generic rules above.
>> 553 #
>> 554 legacy_defconfigs += ocelot_defconfig
>> 555 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
98 556
99 PHONY += $(boot_targets) !! 557 legacy_defconfigs += sead3_defconfig
100 $(boot_targets): vmlinux !! 558 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
101 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
102 559
103 uimage-default-y := uIm !! 560 legacy_defconfigs += sead3micro_defconfig
104 uimage-default-$(CONFIG_KERNEL_GZIP) := uIm !! 561 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
105 uimage-default-$(CONFIG_KERNEL_LZMA) := uIm <<
106 562
107 PHONY += uImage !! 563 legacy_defconfigs += xilfpga_defconfig
108 uImage: $(uimage-default-y) !! 564 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
109 @ln -sf $< $(boot)/uImage <<
110 @$(kecho) ' Image $(boot)/uImage is r <<
111 565
112 CLEAN_FILES += $(boot)/uImage !! 566 .PHONY: $(legacy_defconfigs)
>> 567 $(legacy_defconfigs):
>> 568 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
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