1# 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. 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. 12# 13 14archscripts: scripts_basic 15 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry 16ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) 17 $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check 18endif 19 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 20 21KBUILD_DEFCONFIG := 32r2el_defconfig 22KBUILD_DTBS := dtbs 23 24# 25# Select the object file format to substitute into the linker script. 26# 27ifdef CONFIG_CPU_LITTLE_ENDIAN 2832bit-tool-archpref = mipsel 2964bit-tool-archpref = mips64el 3032bit-bfd = elf32-tradlittlemips 3164bit-bfd = elf64-tradlittlemips 3232bit-emul = elf32ltsmip 3364bit-emul = elf64ltsmip 34else 3532bit-tool-archpref = mips 3664bit-tool-archpref = mips64 3732bit-bfd = elf32-tradbigmips 3864bit-bfd = elf64-tradbigmips 3932bit-emul = elf32btsmip 4064bit-emul = elf64btsmip 41endif 42 43ifdef CONFIG_32BIT 44tool-archpref = $(32bit-tool-archpref) 45UTS_MACHINE := mips 46endif 47ifdef CONFIG_64BIT 48tool-archpref = $(64bit-tool-archpref) 49UTS_MACHINE := mips64 50endif 51 52ifdef cross_compiling 53 ifeq ($(CROSS_COMPILE),) 54 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 55 endif 56endif 57 58ifdef CONFIG_FUNCTION_GRAPH_TRACER 59 ifndef KBUILD_MCOUNT_RA_ADDRESS 60 ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 61 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 62 endif 63 endif 64endif 65cflags-y += $(call cc-option, -mno-check-zero-division) 66 67ifdef CONFIG_32BIT 68ld-emul = $(32bit-emul) 69vmlinux-32 = vmlinux 70vmlinux-64 = vmlinux.64 71 72cflags-y += -mabi=32 73endif 74 75ifdef CONFIG_64BIT 76ld-emul = $(64bit-emul) 77vmlinux-32 = vmlinux.32 78vmlinux-64 = vmlinux 79 80cflags-y += -mabi=64 81endif 82 83all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 84all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 85all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 86 87# 88# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 89# code since it only slows down the whole thing. At some point we might make 90# use of global pointer optimizations but their use of $28 conflicts with 91# the current pointer optimization. 92# 93# The DECStation requires an ECOFF kernel for remote booting, other MIPS 94# machines may also. Since BFD is incredibly buggy with respect to 95# crossformat linking we rely on the elf2ecoff tool for format conversion. 96# 97cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 98cflags-y += -msoft-float 99LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 100KBUILD_AFLAGS_MODULE += -mlong-calls 101KBUILD_CFLAGS_MODULE += -mlong-calls 102 103ifeq ($(CONFIG_RELOCATABLE),y) 104LDFLAGS_vmlinux += --emit-relocs 105endif 106 107# 108# pass -msoft-float to GAS if it supports it. However on newer binutils 109# (specifically newer than 2.24.51.20140728) we then also need to explicitly 110# set ".set hardfloat" in all files which manipulate floating point registers. 111# 112ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 113 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 114endif 115 116cflags-y += -ffreestanding 117 118cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 119cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 120 121cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 122 -fno-omit-frame-pointer 123 124# Some distribution-specific toolchains might pass the -fstack-check 125# option during the build, which adds a simple stack-probe at the beginning 126# of every function. This stack probe is to ensure that there is enough 127# stack space, else a SEGV is generated. This is not desirable for MIPS 128# as kernel stacks are small, placed in unmapped virtual memory, and do not 129# grow when overflowed. Especially on SGI IP27 platforms, this check will 130# lead to a NULL pointer dereference in _raw_spin_lock_irq. 131# 132# In disassembly, this stack probe appears at the top of a function as: 133# sd zero,<offset>(sp) 134# Where <offset> is a negative value. 135# 136cflags-y += -fno-stack-check 137 138# binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes, 139# supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll 140# instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h 141# for a description). 142# 143# We disable this in order to prevent the assembler meddling with the 144# instruction that labels refer to, ie. if we label an ll instruction: 145# 146# 1: ll v0, 0(a0) 147# 148# ...then with the assembler fix applied the label may actually point at a sync 149# instruction inserted by the assembler, and if we were using the label in an 150# exception table the table would no longer contain the address of the ll 151# instruction. 152# 153# Avoid this by explicitly disabling that assembler behaviour. 154# 155cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,) 156 157# 158# CPU-dependent compiler/assembler options for optimization. 159# 160cflags-$(CONFIG_CPU_R3000) += -march=r3000 161cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 162cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 163cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 164cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 165cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 166cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 167cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg 168cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 169cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 170cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 171cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap 172cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 173cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg 174cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 175cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 176 -Wa,--trap 177cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 178 -Wa,--trap 179cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 180 -Wa,--trap 181cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 182 -Wa,--trap 183cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 184cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 185cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 186 -Wa,--trap 187cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 188ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 189cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 190endif 191cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 192cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 193 194cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 195cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 196cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 197 198# For smartmips configurations, there are hundreds of warnings due to ISA overrides 199# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 200# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 201# similar directives in the kernel will spam the build logs with the following warnings: 202# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 203# or 204# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 205# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 206# been fixed properly. 207mips-cflags := $(cflags-y) 208ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 209smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 210cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 211endif 212ifeq ($(CONFIG_CPU_MICROMIPS),y) 213micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 214cflags-$(micromips-ase) += -mmicromips 215endif 216ifeq ($(CONFIG_CPU_HAS_MSA),y) 217toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 218cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 219endif 220toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 221cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 222# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 223# only warns 224xpa-cflags-y := $(mips-cflags) 225xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 226toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 227cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 228toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 229cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 230toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) 231cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP 232toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) 233cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV 234 235# 236# Firmware support 237# 238libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 239libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 240libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 241libs-y += arch/mips/fw/lib/ 242 243# 244# Kernel compression 245# 246ifdef CONFIG_SYS_SUPPORTS_ZBOOT 247COMPRESSION_FNAME = vmlinuz 248else 249COMPRESSION_FNAME = vmlinux 250endif 251 252# 253# Board-dependent options and extra files 254# 255include $(srctree)/arch/mips/Kbuild.platforms 256 257ifdef CONFIG_PHYSICAL_START 258load-y = $(CONFIG_PHYSICAL_START) 259endif 260 261entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) 262cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 263drivers-$(CONFIG_PCI) += arch/mips/pci/ 264 265# 266# Automatically detect the build format. By default we choose 267# the elf format according to the load address. 268# We can always force a build with a 64-bits symbol format by 269# passing 'KBUILD_SYM32=no' option to the make's command line. 270# 271ifdef CONFIG_64BIT 272 ifndef KBUILD_SYM32 273 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 274 KBUILD_SYM32 = y 275 endif 276 endif 277 278 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 279 cflags-y += -msym32 -DKBUILD_64BIT_SYM32 280 else 281 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 282 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 283 endif 284 endif 285endif 286 287# When linking a 32-bit executable the LLVM linker cannot cope with a 288# 32-bit load address that has been sign-extended to 64 bits. Simply 289# remove the upper 32 bits then, as it is safe to do so with other 290# linkers. 291ifdef CONFIG_64BIT 292 load-ld = $(load-y) 293else 294 load-ld = $(subst 0xffffffff,0x,$(load-y)) 295endif 296 297KBUILD_AFLAGS += $(cflags-y) 298KBUILD_CFLAGS += $(cflags-y) 299KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld) 300KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 301 302bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 303 LINKER_LOAD_ADDRESS=$(load-ld) \ 304 VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 305 PLATFORM="$(platform-y)" \ 306 ITS_INPUTS="$(its-y)" 307ifdef CONFIG_32BIT 308bootvars-y += ADDR_BITS=32 309endif 310ifdef CONFIG_64BIT 311bootvars-y += ADDR_BITS=64 312endif 313 314# This is required to get dwarf unwinding tables into .debug_frame 315# instead of .eh_frame so we don't discard them. 316KBUILD_CFLAGS += -fno-asynchronous-unwind-tables 317 318KBUILD_LDFLAGS += -m $(ld-emul) 319 320ifdef CONFIG_MIPS 321CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 322 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \ 323 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 324endif 325 326OBJCOPYFLAGS += --remove-section=.reginfo 327 328head-y := arch/mips/kernel/head.o 329 330libs-y += arch/mips/lib/ 331libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ 332 333drivers-y += arch/mips/crypto/ 334 335# suspend and hibernation support 336drivers-$(CONFIG_PM) += arch/mips/power/ 337 338# boot image targets (arch/mips/boot/) 339boot-y := vmlinux.bin 340boot-y += vmlinux.ecoff 341boot-y += vmlinux.srec 342boot-y += uImage 343boot-y += uImage.bin 344boot-y += uImage.bz2 345boot-y += uImage.gz 346boot-y += uImage.lzma 347boot-y += uImage.lzo 348boot-y += vmlinux.itb 349boot-y += vmlinux.gz.itb 350boot-y += vmlinux.bz2.itb 351boot-y += vmlinux.lzma.itb 352boot-y += vmlinux.lzo.itb 353 354# compressed boot image targets (arch/mips/boot/compressed/) 355bootz-y := vmlinuz 356bootz-y += vmlinuz.bin 357bootz-y += vmlinuz.ecoff 358bootz-y += vmlinuz.srec 359bootz-y += uzImage.bin 360bootz-y += vmlinuz.itb 361 362# 363# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 364# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 365# convert to ECOFF using elf2ecoff. 366# 367quiet_cmd_32 = OBJCOPY $@ 368 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 369vmlinux.32: vmlinux 370 $(call cmd,32) 371 372# 373# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 374# ELF files from 32-bit files by conversion. 375# 376quiet_cmd_64 = OBJCOPY $@ 377 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 378vmlinux.64: vmlinux 379 $(call cmd,64) 380 381all: $(all-y) $(KBUILD_DTBS) 382 383# boot 384$(boot-y): $(vmlinux-32) FORCE 385 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 386 $(bootvars-y) arch/mips/boot/$@ 387 388ifdef CONFIG_SYS_SUPPORTS_ZBOOT 389# boot/compressed 390$(bootz-y): $(vmlinux-32) FORCE 391 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 392 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@ 393else 394vmlinuz: FORCE 395 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 396 /bin/false 397endif 398 399 400CLEAN_FILES += vmlinux.32 vmlinux.64 401 402# device-trees 403core-y += arch/mips/boot/dts/ 404 405archprepare: 406ifdef CONFIG_MIPS32_N32 407 @$(kecho) ' Checking missing-syscalls for N32' 408 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 409endif 410ifdef CONFIG_MIPS32_O32 411 @$(kecho) ' Checking missing-syscalls for O32' 412 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 413endif 414 415install: 416 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 417ifdef CONFIG_SYS_SUPPORTS_ZBOOT 418 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 419endif 420 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 421 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 422 423archheaders: 424 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all 425 426define archhelp 427 echo ' install - install kernel into $(INSTALL_PATH)' 428 echo ' vmlinux.ecoff - ECOFF boot image' 429 echo ' vmlinux.bin - Raw binary boot image' 430 echo ' vmlinux.srec - SREC boot image' 431 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 432 echo ' vmlinuz - Compressed boot(zboot) image' 433 echo ' vmlinuz.ecoff - ECOFF zboot image' 434 echo ' vmlinuz.bin - Raw binary zboot image' 435 echo ' vmlinuz.srec - SREC zboot image' 436 echo ' uImage - U-Boot image' 437 echo ' uImage.bin - U-Boot image (uncompressed)' 438 echo ' uImage.bz2 - U-Boot image (bz2)' 439 echo ' uImage.gz - U-Boot image (gzip)' 440 echo ' uImage.lzma - U-Boot image (lzma)' 441 echo ' uImage.lzo - U-Boot image (lzo)' 442 echo ' uzImage.bin - U-Boot image (self-extracting)' 443 echo 444 echo ' These will be default as appropriate for a configured platform.' 445 echo 446 echo ' If you are targeting a system supported by generic kernels you may' 447 echo ' configure the kernel for a given architecture target like so:' 448 echo 449 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 450 echo 451 echo ' Where BOARDS is some subset of the following:' 452 for board in $(sort $(BOARDS)); do echo " $${board}"; done 453 echo 454 echo ' Specifically the following generic default configurations are' 455 echo ' supported:' 456 echo 457 $(foreach cfg,$(generic_defconfigs), 458 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 459 echo 460 echo ' The following legacy default configurations have been converted to' 461 echo ' generic and can still be used:' 462 echo 463 $(foreach cfg,$(sort $(legacy_defconfigs)), 464 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 465 echo 466 echo ' Otherwise, the following default configurations are available:' 467endef 468 469generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 470generic_defconfigs := 471 472# 473# If the user generates a generic kernel configuration without specifying a 474# list of boards to include the config fragments for, default to including all 475# available board config fragments. 476# 477ifeq ($(BOARDS),) 478BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 479endif 480 481# 482# Generic kernel configurations which merge generic_defconfig with the 483# appropriate config fragments from arch/mips/configs/generic/, resulting in 484# the ability to easily configure the kernel for a given architecture, 485# endianness & set of boards without duplicating the needed configuration in 486# hundreds of defconfig files. 487# 488define gen_generic_defconfigs 489$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 490target := $(bits)$(rev)$(filter el,$(endian))_defconfig 491generic_defconfigs += $$(target) 492$$(target): $(generic_config_dir)/$(bits)$(rev).config 493$$(target): $(generic_config_dir)/$(endian).config 494))) 495endef 496 497$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 498$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 499 500define describe_generic_defconfig 501$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 502endef 503 504.PHONY: $(generic_defconfigs) 505$(generic_defconfigs): 506 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 507 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 508 grep -Ev '^#' 509 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 510 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 511 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 512 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 513 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 514 "$(origin BOARDS)" $(BOARDS) 515 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 516 517# 518# Prevent generic merge_config rules attempting to merge single fragments 519# 520$(generic_config_dir)/%.config: ; 521 522# 523# Prevent direct use of generic_defconfig, which is intended to be used as the 524# basis of the various ISA-specific targets generated above. 525# 526.PHONY: generic_defconfig 527generic_defconfig: 528 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 529 $(Q)echo "used via an ISA-specific target from the following list:" 530 $(Q)echo 531 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 532 $(Q)echo 533 $(Q)false 534 535# 536# Legacy defconfig compatibility - these targets used to be real defconfigs but 537# now that the boards have been converted to use the generic kernel they are 538# wrappers around the generic rules above. 539# 540legacy_defconfigs += ocelot_defconfig 541ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 542 543legacy_defconfigs += sead3_defconfig 544sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 545 546legacy_defconfigs += sead3micro_defconfig 547sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 548 549legacy_defconfigs += xilfpga_defconfig 550xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 551 552legacy_defconfigs += pistachio_defconfig 553pistachio_defconfig-y := 32r2el_defconfig BOARDS=marduk 554 555.PHONY: $(legacy_defconfigs) 556$(legacy_defconfigs): 557 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 558