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 = $(64bit-tool-archpref) 50UTS_MACHINE := mips64 51endif 52 53ifneq ($(SUBARCH),$(ARCH)) 54 ifeq ($(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 118 119# 120# We explicitly add the endianness specifier if needed, this allows 121# to compile kernels with a toolchain for the other endianness. We 122# carefully avoid to add it redundantly because gcc 3.3/3.4 complains 123# when fed the toolchain default! 124# 125# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of 126# 2006-10-10 don't properly change the predefined symbols if -EB / -EL 127# are used, so we kludge that here. A bug has been filed at 128# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. 129# 130# clang doesn't suffer from these issues and our checks against -dumpmachine 131# don't work so well when cross compiling, since without providing --target 132# clang's output will be based upon the build machine. So for clang we simply 133# unconditionally specify -EB or -EL as appropriate. 134# 135ifdef CONFIG_CC_IS_CLANG 136cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 137cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 138else 139undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ 140undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ 141predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ 142predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ 143cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) 144cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) 145endif 146 147cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 148 -fno-omit-frame-pointer 149 150# Some distribution-specific toolchains might pass the -fstack-check 151# option during the build, which adds a simple stack-probe at the beginning 152# of every function. This stack probe is to ensure that there is enough 153# stack space, else a SEGV is generated. This is not desirable for MIPS 154# as kernel stacks are small, placed in unmapped virtual memory, and do not 155# grow when overflowed. Especially on SGI IP27 platforms, this check will 156# lead to a NULL pointer dereference in _raw_spin_lock_irq. 157# 158# In disassembly, this stack probe appears at the top of a function as: 159# sd zero,<offset>(sp) 160# Where <offset> is a negative value. 161# 162cflags-y += -fno-stack-check 163 164# 165# CPU-dependent compiler/assembler options for optimization. 166# 167cflags-$(CONFIG_CPU_R3000) += -march=r3000 168cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 169cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 170cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 171cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 172cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 173cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 174cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 175cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 176cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 177cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 178cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 179cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 180 -Wa,--trap 181cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 182 -Wa,--trap 183cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 184 -Wa,--trap 185cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 186 -Wa,--trap 187cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 188cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 189cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 190 -Wa,--trap 191cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 192ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 193cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 194endif 195cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 196cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 197 198cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 199cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 200cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 201 202# For smartmips configurations, there are hundreds of warnings due to ISA overrides 203# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 204# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 205# similar directives in the kernel will spam the build logs with the following warnings: 206# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 207# or 208# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 209# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 210# been fixed properly. 211mips-cflags := $(cflags-y) 212ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 213smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 214cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 215endif 216ifeq ($(CONFIG_CPU_MICROMIPS),y) 217micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 218cflags-$(micromips-ase) += -mmicromips 219endif 220ifeq ($(CONFIG_CPU_HAS_MSA),y) 221toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 222cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 223endif 224toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 225cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 226# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 227# only warns 228xpa-cflags-y := $(mips-cflags) 229xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 230toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 231cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 232toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 233cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 234toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) 235cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP 236toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) 237cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV 238 239# 240# Firmware support 241# 242libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 243libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 244libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 245libs-y += arch/mips/fw/lib/ 246 247# 248# Kernel compression 249# 250ifdef CONFIG_SYS_SUPPORTS_ZBOOT 251COMPRESSION_FNAME = vmlinuz 252else 253COMPRESSION_FNAME = vmlinux 254endif 255 256# 257# Board-dependent options and extra files 258# 259include arch/mips/Kbuild.platforms 260 261ifdef CONFIG_PHYSICAL_START 262load-y = $(CONFIG_PHYSICAL_START) 263endif 264 265entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) 266cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 267drivers-$(CONFIG_PCI) += arch/mips/pci/ 268 269# 270# Automatically detect the build format. By default we choose 271# the elf format according to the load address. 272# We can always force a build with a 64-bits symbol format by 273# passing 'KBUILD_SYM32=no' option to the make's command line. 274# 275ifdef CONFIG_64BIT 276 ifndef KBUILD_SYM32 277 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 278 KBUILD_SYM32 = y 279 endif 280 endif 281 282 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 283 cflags-y += -msym32 -DKBUILD_64BIT_SYM32 284 else 285 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 286 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 287 endif 288 endif 289endif 290 291KBUILD_AFLAGS += $(cflags-y) 292KBUILD_CFLAGS += $(cflags-y) 293KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) 294KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 295 296bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 297 VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 298 PLATFORM="$(platform-y)" \ 299 ITS_INPUTS="$(its-y)" 300ifdef CONFIG_32BIT 301bootvars-y += ADDR_BITS=32 302endif 303ifdef CONFIG_64BIT 304bootvars-y += ADDR_BITS=64 305endif 306 307# This is required to get dwarf unwinding tables into .debug_frame 308# instead of .eh_frame so we don't discard them. 309KBUILD_CFLAGS += -fno-asynchronous-unwind-tables 310 311KBUILD_LDFLAGS += -m $(ld-emul) 312 313ifdef CONFIG_MIPS 314CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 315 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 316 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 317endif 318 319OBJCOPYFLAGS += --remove-section=.reginfo 320 321head-y := arch/mips/kernel/head.o 322 323libs-y += arch/mips/lib/ 324libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ 325 326# See arch/mips/Kbuild for content of core part of the kernel 327core-y += arch/mips/ 328 329drivers-y += arch/mips/crypto/ 330drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 331 332# suspend and hibernation support 333drivers-$(CONFIG_PM) += arch/mips/power/ 334 335# boot image targets (arch/mips/boot/) 336boot-y := vmlinux.bin 337boot-y += vmlinux.ecoff 338boot-y += vmlinux.srec 339ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 340boot-y += uImage 341boot-y += uImage.bin 342boot-y += uImage.bz2 343boot-y += uImage.gz 344boot-y += uImage.lzma 345boot-y += uImage.lzo 346endif 347boot-y += vmlinux.itb 348boot-y += vmlinux.gz.itb 349boot-y += vmlinux.bz2.itb 350boot-y += vmlinux.lzma.itb 351boot-y += vmlinux.lzo.itb 352 353# compressed boot image targets (arch/mips/boot/compressed/) 354bootz-y := vmlinuz 355bootz-y += vmlinuz.bin 356bootz-y += vmlinuz.ecoff 357bootz-y += vmlinuz.srec 358ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 359bootz-y += uzImage.bin 360endif 361 362ifdef CONFIG_LASAT 363rom.bin rom.sw: vmlinux 364 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ 365 $(bootvars-y) $@ 366endif 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) $@ 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 $(Q)$(MAKE) $(clean)=arch/mips/lasat 434 435archheaders: 436 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all 437 438define archhelp 439 echo ' install - install kernel into $(INSTALL_PATH)' 440 echo ' vmlinux.ecoff - ECOFF boot image' 441 echo ' vmlinux.bin - Raw binary boot image' 442 echo ' vmlinux.srec - SREC boot image' 443 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 444 echo ' vmlinuz - Compressed boot(zboot) image' 445 echo ' vmlinuz.ecoff - ECOFF zboot image' 446 echo ' vmlinuz.bin - Raw binary zboot image' 447 echo ' vmlinuz.srec - SREC zboot image' 448 echo ' uImage - U-Boot image' 449 echo ' uImage.bin - U-Boot image (uncompressed)' 450 echo ' uImage.bz2 - U-Boot image (bz2)' 451 echo ' uImage.gz - U-Boot image (gzip)' 452 echo ' uImage.lzma - U-Boot image (lzma)' 453 echo ' uImage.lzo - U-Boot image (lzo)' 454 echo ' uzImage.bin - U-Boot image (self-extracting)' 455 echo 456 echo ' These will be default as appropriate for a configured platform.' 457 echo 458 echo ' If you are targeting a system supported by generic kernels you may' 459 echo ' configure the kernel for a given architecture target like so:' 460 echo 461 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 462 echo 463 echo ' Where BOARDS is some subset of the following:' 464 for board in $(sort $(BOARDS)); do echo " $${board}"; done 465 echo 466 echo ' Specifically the following generic default configurations are' 467 echo ' supported:' 468 echo 469 $(foreach cfg,$(generic_defconfigs), 470 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 471 echo 472 echo ' The following legacy default configurations have been converted to' 473 echo ' generic and can still be used:' 474 echo 475 $(foreach cfg,$(sort $(legacy_defconfigs)), 476 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 477 echo 478 echo ' Otherwise, the following default configurations are available:' 479endef 480 481generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 482generic_defconfigs := 483 484# 485# If the user generates a generic kernel configuration without specifying a 486# list of boards to include the config fragments for, default to including all 487# available board config fragments. 488# 489ifeq ($(BOARDS),) 490BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 491endif 492 493# 494# Generic kernel configurations which merge generic_defconfig with the 495# appropriate config fragments from arch/mips/configs/generic/, resulting in 496# the ability to easily configure the kernel for a given architecture, 497# endianness & set of boards without duplicating the needed configuration in 498# hundreds of defconfig files. 499# 500define gen_generic_defconfigs 501$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 502target := $(bits)$(rev)$(filter el,$(endian))_defconfig 503generic_defconfigs += $$(target) 504$$(target): $(generic_config_dir)/$(bits)$(rev).config 505$$(target): $(generic_config_dir)/$(endian).config 506))) 507endef 508 509$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 510$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 511 512define describe_generic_defconfig 513$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 514endef 515 516.PHONY: $(generic_defconfigs) 517$(generic_defconfigs): 518 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 519 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 520 grep -Ev '^#' 521 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 522 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 523 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 524 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 525 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 526 "$(origin BOARDS)" $(BOARDS) 527 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 528 529# 530# Prevent generic merge_config rules attempting to merge single fragments 531# 532$(generic_config_dir)/%.config: ; 533 534# 535# Prevent direct use of generic_defconfig, which is intended to be used as the 536# basis of the various ISA-specific targets generated above. 537# 538.PHONY: generic_defconfig 539generic_defconfig: 540 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 541 $(Q)echo "used via an ISA-specific target from the following list:" 542 $(Q)echo 543 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 544 $(Q)echo 545 $(Q)false 546 547# 548# Legacy defconfig compatibility - these targets used to be real defconfigs but 549# now that the boards have been converted to use the generic kernel they are 550# wrappers around the generic rules above. 551# 552legacy_defconfigs += ocelot_defconfig 553ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 554 555legacy_defconfigs += sead3_defconfig 556sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 557 558legacy_defconfigs += sead3micro_defconfig 559sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 560 561legacy_defconfigs += xilfpga_defconfig 562xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 563 564.PHONY: $(legacy_defconfigs) 565$(legacy_defconfigs): 566 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 567