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. Remember to do have actions 12# for "archclean" cleaning up for this architecture. 13# 14 15archscripts: scripts_basic 16 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry 17ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) 18 $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check 19endif 20 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 21 22KBUILD_DEFCONFIG := 32r2el_defconfig 23KBUILD_DTBS := dtbs 24 25# 26# Select the object file format to substitute into the linker script. 27# 28ifdef CONFIG_CPU_LITTLE_ENDIAN 2932bit-tool-archpref = mipsel 3064bit-tool-archpref = mips64el 3132bit-bfd = elf32-tradlittlemips 3264bit-bfd = elf64-tradlittlemips 3332bit-emul = elf32ltsmip 3464bit-emul = elf64ltsmip 35else 3632bit-tool-archpref = mips 3764bit-tool-archpref = mips64 3832bit-bfd = elf32-tradbigmips 3964bit-bfd = elf64-tradbigmips 4032bit-emul = elf32btsmip 4164bit-emul = elf64btsmip 42endif 43 44ifdef CONFIG_32BIT 45tool-archpref = $(32bit-tool-archpref) 46UTS_MACHINE := mips 47endif 48ifdef CONFIG_64BIT 49tool-archpref = $(64bit-tool-archpref) 50UTS_MACHINE := mips64 51endif 52 53ifdef cross_compiling 54 ifeq ($(CROSS_COMPILE),) 55 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 56 endif 57endif 58 59ifdef CONFIG_FUNCTION_GRAPH_TRACER 60 ifndef KBUILD_MCOUNT_RA_ADDRESS 61 ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 62 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 63 endif 64 endif 65endif 66cflags-y += $(call cc-option, -mno-check-zero-division) 67 68ifdef CONFIG_32BIT 69ld-emul = $(32bit-emul) 70vmlinux-32 = vmlinux 71vmlinux-64 = vmlinux.64 72 73cflags-y += -mabi=32 74endif 75 76ifdef CONFIG_64BIT 77ld-emul = $(64bit-emul) 78vmlinux-32 = vmlinux.32 79vmlinux-64 = vmlinux 80 81cflags-y += -mabi=64 82endif 83 84all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 85all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 86all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 87 88# 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 $28 conflicts with 92# the current pointer optimization. 93# 94# The DECStation requires an ECOFF kernel for remote booting, other MIPS 95# machines may also. Since BFD is incredibly buggy with respect to 96# crossformat linking we rely on the elf2ecoff tool for format conversion. 97# 98cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 99cflags-y += -msoft-float 100LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 101KBUILD_AFLAGS_MODULE += -mlong-calls 102KBUILD_CFLAGS_MODULE += -mlong-calls 103 104ifeq ($(CONFIG_RELOCATABLE),y) 105LDFLAGS_vmlinux += --emit-relocs 106endif 107 108# 109# pass -msoft-float to GAS if it supports it. However on newer binutils 110# (specifically newer than 2.24.51.20140728) we then also need to explicitly 111# set ".set hardfloat" in all files which manipulate floating point registers. 112# 113ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 114 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 115endif 116 117cflags-y += -ffreestanding 118 119cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 120cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 121 122cflags-$(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# 137cflags-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# 156cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,) 157 158# 159# CPU-dependent compiler/assembler options for optimization. 160# 161cflags-$(CONFIG_CPU_R3000) += -march=r3000 162cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 163cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 164cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 165cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 166cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 167cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 168cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 169cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg 170cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 171cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 172cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 173cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap 174cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 175cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg 176cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 177cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 178 -Wa,--trap 179cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 180 -Wa,--trap 181cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 182 -Wa,--trap 183cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 184 -Wa,--trap 185cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 186cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 187cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 188 -Wa,--trap 189cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 190ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 191cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 192endif 193cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 194cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 195 196cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 197cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 198cflags-$(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. 209mips-cflags := $(cflags-y) 210ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 211smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 212cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 213endif 214ifeq ($(CONFIG_CPU_MICROMIPS),y) 215micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 216cflags-$(micromips-ase) += -mmicromips 217endif 218ifeq ($(CONFIG_CPU_HAS_MSA),y) 219toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 220cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 221endif 222toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 223cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 224# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 225# only warns 226xpa-cflags-y := $(mips-cflags) 227xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 228toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 229cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 230toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 231cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 232toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) 233cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP 234toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) 235cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV 236 237# 238# Firmware support 239# 240libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 241libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 242libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 243libs-y += arch/mips/fw/lib/ 244 245# 246# Kernel compression 247# 248ifdef CONFIG_SYS_SUPPORTS_ZBOOT 249COMPRESSION_FNAME = vmlinuz 250else 251COMPRESSION_FNAME = vmlinux 252endif 253 254# 255# Board-dependent options and extra files 256# 257include $(srctree)/arch/mips/Kbuild.platforms 258 259ifdef CONFIG_PHYSICAL_START 260load-y = $(CONFIG_PHYSICAL_START) 261endif 262 263entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) 264cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 265drivers-$(CONFIG_PCI) += arch/mips/pci/ 266 267# 268# Automatically detect the build format. By default we choose 269# the elf format according to the load address. 270# We can always force a build with a 64-bits symbol format by 271# passing 'KBUILD_SYM32=no' option to the make's command line. 272# 273ifdef CONFIG_64BIT 274 ifndef KBUILD_SYM32 275 ifeq ($(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 287endif 288 289# When linking a 32-bit executable the LLVM linker cannot cope with a 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. 293ifdef CONFIG_64BIT 294 load-ld = $(load-y) 295else 296 load-ld = $(subst 0xffffffff,0x,$(load-y)) 297endif 298 299KBUILD_AFLAGS += $(cflags-y) 300KBUILD_CFLAGS += $(cflags-y) 301KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld) 302KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 303 304bootvars-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)" 309ifdef CONFIG_32BIT 310bootvars-y += ADDR_BITS=32 311endif 312ifdef CONFIG_64BIT 313bootvars-y += ADDR_BITS=64 314endif 315 316# This is required to get dwarf unwinding tables into .debug_frame 317# instead of .eh_frame so we don't discard them. 318KBUILD_CFLAGS += -fno-asynchronous-unwind-tables 319 320KBUILD_LDFLAGS += -m $(ld-emul) 321 322ifdef CONFIG_MIPS 323CHECKFLAGS += $(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') 326endif 327 328OBJCOPYFLAGS += --remove-section=.reginfo 329 330head-y := arch/mips/kernel/head.o 331 332libs-y += arch/mips/lib/ 333libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ 334 335drivers-y += arch/mips/crypto/ 336 337# suspend and hibernation support 338drivers-$(CONFIG_PM) += arch/mips/power/ 339 340# boot image targets (arch/mips/boot/) 341boot-y := vmlinux.bin 342boot-y += vmlinux.ecoff 343boot-y += vmlinux.srec 344ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 345boot-y += uImage 346boot-y += uImage.bin 347boot-y += uImage.bz2 348boot-y += uImage.gz 349boot-y += uImage.lzma 350boot-y += uImage.lzo 351endif 352boot-y += vmlinux.itb 353boot-y += vmlinux.gz.itb 354boot-y += vmlinux.bz2.itb 355boot-y += vmlinux.lzma.itb 356boot-y += vmlinux.lzo.itb 357 358# compressed boot image targets (arch/mips/boot/compressed/) 359bootz-y := vmlinuz 360bootz-y += vmlinuz.bin 361bootz-y += vmlinuz.ecoff 362bootz-y += vmlinuz.srec 363ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 364bootz-y += uzImage.bin 365endif 366bootz-y += vmlinuz.itb 367 368# 369# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 370# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 371# convert to ECOFF using elf2ecoff. 372# 373quiet_cmd_32 = OBJCOPY $@ 374 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 375vmlinux.32: vmlinux 376 $(call cmd,32) 377 378# 379# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 380# ELF files from 32-bit files by conversion. 381# 382quiet_cmd_64 = OBJCOPY $@ 383 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 384vmlinux.64: vmlinux 385 $(call cmd,64) 386 387all: $(all-y) $(KBUILD_DTBS) 388 389# boot 390$(boot-y): $(vmlinux-32) FORCE 391 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 392 $(bootvars-y) arch/mips/boot/$@ 393 394ifdef CONFIG_SYS_SUPPORTS_ZBOOT 395# boot/compressed 396$(bootz-y): $(vmlinux-32) FORCE 397 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 398 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@ 399else 400vmlinuz: FORCE 401 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 402 /bin/false 403endif 404 405 406CLEAN_FILES += vmlinux.32 vmlinux.64 407 408# device-trees 409core-y += arch/mips/boot/dts/ 410 411archprepare: 412ifdef CONFIG_MIPS32_N32 413 @$(kecho) ' Checking missing-syscalls for N32' 414 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 415endif 416ifdef CONFIG_MIPS32_O32 417 @$(kecho) ' Checking missing-syscalls for O32' 418 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 419endif 420 421install: 422 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 423ifdef CONFIG_SYS_SUPPORTS_ZBOOT 424 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 425endif 426 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 427 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 428 429archclean: 430 $(Q)$(MAKE) $(clean)=arch/mips/boot 431 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 432 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools 433 434archheaders: 435 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all 436 437define archhelp 438 echo ' install - install kernel into $(INSTALL_PATH)' 439 echo ' vmlinux.ecoff - ECOFF boot image' 440 echo ' vmlinux.bin - Raw binary boot image' 441 echo ' vmlinux.srec - SREC boot image' 442 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 443 echo ' vmlinuz - Compressed boot(zboot) image' 444 echo ' vmlinuz.ecoff - ECOFF zboot image' 445 echo ' vmlinuz.bin - Raw binary zboot image' 446 echo ' vmlinuz.srec - SREC zboot image' 447 echo ' uImage - U-Boot image' 448 echo ' uImage.bin - U-Boot image (uncompressed)' 449 echo ' uImage.bz2 - U-Boot image (bz2)' 450 echo ' uImage.gz - U-Boot image (gzip)' 451 echo ' uImage.lzma - U-Boot image (lzma)' 452 echo ' uImage.lzo - U-Boot image (lzo)' 453 echo ' uzImage.bin - U-Boot image (self-extracting)' 454 echo 455 echo ' These will be default as appropriate for a configured platform.' 456 echo 457 echo ' If you are targeting a system supported by generic kernels you may' 458 echo ' configure the kernel for a given architecture target like so:' 459 echo 460 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 461 echo 462 echo ' Where BOARDS is some subset of the following:' 463 for board in $(sort $(BOARDS)); do echo " $${board}"; done 464 echo 465 echo ' Specifically the following generic default configurations are' 466 echo ' supported:' 467 echo 468 $(foreach cfg,$(generic_defconfigs), 469 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 470 echo 471 echo ' The following legacy default configurations have been converted to' 472 echo ' generic and can still be used:' 473 echo 474 $(foreach cfg,$(sort $(legacy_defconfigs)), 475 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 476 echo 477 echo ' Otherwise, the following default configurations are available:' 478endef 479 480generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 481generic_defconfigs := 482 483# 484# If the user generates a generic kernel configuration without specifying a 485# list of boards to include the config fragments for, default to including all 486# available board config fragments. 487# 488ifeq ($(BOARDS),) 489BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 490endif 491 492# 493# Generic kernel configurations which merge generic_defconfig with the 494# appropriate config fragments from arch/mips/configs/generic/, resulting in 495# the ability to easily configure the kernel for a given architecture, 496# endianness & set of boards without duplicating the needed configuration in 497# hundreds of defconfig files. 498# 499define gen_generic_defconfigs 500$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 501target := $(bits)$(rev)$(filter el,$(endian))_defconfig 502generic_defconfigs += $$(target) 503$$(target): $(generic_config_dir)/$(bits)$(rev).config 504$$(target): $(generic_config_dir)/$(endian).config 505))) 506endef 507 508$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 509$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 510 511define describe_generic_defconfig 512$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 513endef 514 515.PHONY: $(generic_defconfigs) 516$(generic_defconfigs): 517 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 518 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 519 grep -Ev '^#' 520 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 521 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 522 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 523 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 524 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 525 "$(origin BOARDS)" $(BOARDS) 526 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 527 528# 529# Prevent generic merge_config rules attempting to merge single fragments 530# 531$(generic_config_dir)/%.config: ; 532 533# 534# Prevent direct use of generic_defconfig, which is intended to be used as the 535# basis of the various ISA-specific targets generated above. 536# 537.PHONY: generic_defconfig 538generic_defconfig: 539 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 540 $(Q)echo "used via an ISA-specific target from the following list:" 541 $(Q)echo 542 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 543 $(Q)echo 544 $(Q)false 545 546# 547# Legacy defconfig compatibility - these targets used to be real defconfigs but 548# now that the boards have been converted to use the generic kernel they are 549# wrappers around the generic rules above. 550# 551legacy_defconfigs += ocelot_defconfig 552ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 553 554legacy_defconfigs += sead3_defconfig 555sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 556 557legacy_defconfigs += sead3micro_defconfig 558sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 559 560legacy_defconfigs += xilfpga_defconfig 561xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 562 563.PHONY: $(legacy_defconfigs) 564$(legacy_defconfigs): 565 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 566