| | 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 | |
| | 15 | archscripts: scripts_basic |
| | 16 | $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry |
| | 17 | $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs |
| | 18 | |
| | 19 | KBUILD_DEFCONFIG := 32r2el_defconfig |
| | 20 | KBUILD_DTBS := dtbs |
| | 21 | |
| | 22 | # |
| | 23 | # Select the object file format to substitute into the linker script. |
| | 24 | # |
| | 25 | ifdef CONFIG_CPU_LITTLE_ENDIAN |
| | 26 | 32bit-tool-archpref = mipsel |
| | 27 | 64bit-tool-archpref = mips64el |
| | 28 | 32bit-bfd = elf32-tradlittlemips |
| | 29 | 64bit-bfd = elf64-tradlittlemips |
| | 30 | 32bit-emul = elf32ltsmip |
| | 31 | 64bit-emul = elf64ltsmip |
| | 32 | else |
| | 33 | 32bit-tool-archpref = mips |
| | 34 | 64bit-tool-archpref = mips64 |
| | 35 | 32bit-bfd = elf32-tradbigmips |
| | 36 | 64bit-bfd = elf64-tradbigmips |
| | 37 | 32bit-emul = elf32btsmip |
| | 38 | 64bit-emul = elf64btsmip |
| | 39 | endif |
| | 40 | |
| | 41 | ifdef CONFIG_32BIT |
| | 42 | tool-archpref = $(32bit-tool-archpref) |
| | 43 | UTS_MACHINE := mips |
| | 44 | endif |
| | 45 | ifdef CONFIG_64BIT |
| | 46 | tool-archpref = $(64bit-tool-archpref) |
| | 47 | UTS_MACHINE := mips64 |
| | 48 | endif |
| | 49 | |
| | 50 | ifneq ($(SUBARCH),$(ARCH)) |
| | 51 | ifeq ($(CROSS_COMPILE),) |
| | 52 | CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) |
| | 53 | endif |
| | 54 | endif |
| | 55 | |
| | 56 | ifdef CONFIG_FUNCTION_GRAPH_TRACER |
| | 57 | ifndef KBUILD_MCOUNT_RA_ADDRESS |
| | 58 | ifeq ($(call cc-option-yn,-mmcount-ra-address), y) |
| | 59 | cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS |
| | 60 | endif |
| | 61 | endif |
| | 62 | endif |
| | 63 | cflags-y += $(call cc-option, -mno-check-zero-division) |
| | 64 | |
| | 65 | ifdef CONFIG_32BIT |
| | 66 | ld-emul = $(32bit-emul) |
| | 67 | vmlinux-32 = vmlinux |
| | 68 | vmlinux-64 = vmlinux.64 |
| | 69 | |
| | 70 | cflags-y += -mabi=32 |
| | 71 | endif |
| | 72 | |
| | 73 | ifdef CONFIG_64BIT |
| | 74 | ld-emul = $(64bit-emul) |
| | 75 | vmlinux-32 = vmlinux.32 |
| | 76 | vmlinux-64 = vmlinux |
| | 77 | |
| | 78 | cflags-y += -mabi=64 |
| | 79 | endif |
| | 80 | |
| | 81 | all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) |
| | 82 | all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) |
| | 83 | all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz |
| | 84 | |
| | 85 | # |
| | 86 | # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel |
| | 87 | # code since it only slows down the whole thing. At some point we might make |
| | 88 | # use of global pointer optimizations but their use of $28 conflicts with |
| | 89 | # the current pointer optimization. |
| | 90 | # |
| | 91 | # The DECStation requires an ECOFF kernel for remote booting, other MIPS |
| | 92 | # machines may also. Since BFD is incredibly buggy with respect to |
| | 93 | # crossformat linking we rely on the elf2ecoff tool for format conversion. |
| | 94 | # |
| | 95 | cflags-y += -G 0 -mno-abicalls -fno-pic -pipe |
| | 96 | cflags-y += -msoft-float |
| | 97 | LDFLAGS_vmlinux += -G 0 -static -n -nostdlib |
| | 98 | KBUILD_AFLAGS_MODULE += -mlong-calls |
| | 99 | KBUILD_CFLAGS_MODULE += -mlong-calls |
| | 100 | |
| | 101 | ifeq ($(CONFIG_RELOCATABLE),y) |
| | 102 | LDFLAGS_vmlinux += --emit-relocs |
| | 103 | endif |
| | 104 | |
| | 105 | # |
| | 106 | # pass -msoft-float to GAS if it supports it. However on newer binutils |
| | 107 | # (specifically newer than 2.24.51.20140728) we then also need to explicitly |
| | 108 | # set ".set hardfloat" in all files which manipulate floating point registers. |
| | 109 | # |
| | 110 | ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) |
| | 111 | cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float |
| | 112 | endif |
| | 113 | |
| | 114 | cflags-y += -ffreestanding |
| | 115 | |
| | 116 | # |
| | 117 | # We explicitly add the endianness specifier if needed, this allows |
| | 118 | # to compile kernels with a toolchain for the other endianness. We |
| | 119 | # carefully avoid to add it redundantly because gcc 3.3/3.4 complains |
| | 120 | # when fed the toolchain default! |
| | 121 | # |
| | 122 | # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of |
| | 123 | # 2006-10-10 don't properly change the predefined symbols if -EB / -EL |
| | 124 | # are used, so we kludge that here. A bug has been filed at |
| | 125 | # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. |
| | 126 | # |
| | 127 | # clang doesn't suffer from these issues and our checks against -dumpmachine |
| | 128 | # don't work so well when cross compiling, since without providing --target |
| | 129 | # clang's output will be based upon the build machine. So for clang we simply |
| | 130 | # unconditionally specify -EB or -EL as appropriate. |
| | 131 | # |
| | 132 | ifdef CONFIG_CC_IS_CLANG |
| | 133 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB |
| | 134 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL |
| | 135 | else |
| | 136 | undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ |
| | 137 | undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ |
| | 138 | predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ |
| | 139 | predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ |
| | 140 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) |
| | 141 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) |
| | 142 | endif |
| | 143 | |
| | 144 | cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ |
| | 145 | -fno-omit-frame-pointer |
| | 146 | |
| | 147 | # Some distribution-specific toolchains might pass the -fstack-check |
| | 148 | # option during the build, which adds a simple stack-probe at the beginning |
| | 149 | # of every function. This stack probe is to ensure that there is enough |
| | 150 | # stack space, else a SEGV is generated. This is not desirable for MIPS |
| | 151 | # as kernel stacks are small, placed in unmapped virtual memory, and do not |
| | 152 | # grow when overflowed. Especially on SGI IP27 platforms, this check will |
| | 153 | # lead to a NULL pointer dereference in _raw_spin_lock_irq. |
| | 154 | # |
| | 155 | # In disassembly, this stack probe appears at the top of a function as: |
| | 156 | # sd zero,<offset>(sp) |
| | 157 | # Where <offset> is a negative value. |
| | 158 | # |
| | 159 | cflags-y += -fno-stack-check |
| | 160 | |
| | 161 | # |
| | 162 | # CPU-dependent compiler/assembler options for optimization. |
| | 163 | # |
| | 164 | cflags-$(CONFIG_CPU_R3000) += -march=r3000 |
| | 165 | cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 |
| | 166 | cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap |
| | 167 | cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap |
| | 168 | cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap |
| | 169 | cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap |
| | 170 | cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap |
| | 171 | cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg |
| | 172 | cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap |
| | 173 | cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap |
| | 174 | cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap |
| | 175 | cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap |
| | 176 | cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ |
| | 177 | -Wa,--trap |
| | 178 | cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ |
| | 179 | -Wa,--trap |
| | 180 | cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ |
| | 181 | -Wa,--trap |
| | 182 | cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ |
| | 183 | -Wa,--trap |
| | 184 | cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) |
| | 185 | cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) |
| | 186 | cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ |
| | 187 | -Wa,--trap |
| | 188 | cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap |
| | 189 | ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) |
| | 190 | cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon |
| | 191 | endif |
| | 192 | cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 |
| | 193 | cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap |
| | 194 | |
| | 195 | cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) |
| | 196 | cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) |
| | 197 | cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) |
| | 198 | |
| | 199 | # For smartmips configurations, there are hundreds of warnings due to ISA overrides |
| | 200 | # in assembly and header files. smartmips is only supported for MIPS32r1 onwards |
| | 201 | # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or |
| | 202 | # similar directives in the kernel will spam the build logs with the following warnings: |
| | 203 | # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater |
| | 204 | # or |
| | 205 | # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension |
| | 206 | # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has |
| | 207 | # been fixed properly. |
| | 208 | mips-cflags := $(cflags-y) |
| | 209 | ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) |
| | 210 | smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) |
| | 211 | cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn |
| | 212 | endif |
| | 213 | ifeq ($(CONFIG_CPU_MICROMIPS),y) |
| | 214 | micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) |
| | 215 | cflags-$(micromips-ase) += -mmicromips |
| | 216 | endif |
| | 217 | ifeq ($(CONFIG_CPU_HAS_MSA),y) |
| | 218 | toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) |
| | 219 | cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA |
| | 220 | endif |
| | 221 | toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) |
| | 222 | cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT |
| | 223 | # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which |
| | 224 | # only warns |
| | 225 | xpa-cflags-y := $(mips-cflags) |
| | 226 | xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings |
| | 227 | toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) |
| | 228 | cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA |
| | 229 | toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) |
| | 230 | cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC |
| | 231 | toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) |
| | 232 | cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP |
| | 233 | toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) |
| | 234 | cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV |
| | 235 | |
| | 236 | # |
| | 237 | # Firmware support |
| | 238 | # |
| | 239 | libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ |
| | 240 | libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ |
| | 241 | libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ |
| | 242 | libs-y += arch/mips/fw/lib/ |
| | 243 | |
| | 244 | # |
| | 245 | # Kernel compression |
| | 246 | # |
| | 247 | ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| | 248 | COMPRESSION_FNAME = vmlinuz |
| | 249 | else |
| | 250 | COMPRESSION_FNAME = vmlinux |
| | 251 | endif |
| | 252 | |
| | 253 | # |
| | 254 | # Board-dependent options and extra files |
| | 255 | # |
| | 256 | include arch/mips/Kbuild.platforms |
| | 257 | |
| | 258 | ifdef CONFIG_PHYSICAL_START |
| | 259 | load-y = $(CONFIG_PHYSICAL_START) |
| | 260 | endif |
| | 261 | |
| | 262 | entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) |
| | 263 | cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic |
| | 264 | drivers-$(CONFIG_PCI) += arch/mips/pci/ |
| | 265 | |
| | 266 | # |
| | 267 | # Automatically detect the build format. By default we choose |
| | 268 | # the elf format according to the load address. |
| | 269 | # We can always force a build with a 64-bits symbol format by |
| | 270 | # passing 'KBUILD_SYM32=no' option to the make's command line. |
| | 271 | # |
| | 272 | ifdef CONFIG_64BIT |
| | 273 | ifndef KBUILD_SYM32 |
| | 274 | ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) |
| | 275 | KBUILD_SYM32 = y |
| | 276 | endif |
| | 277 | endif |
| | 278 | |
| | 279 | ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) |
| | 280 | cflags-y += -msym32 -DKBUILD_64BIT_SYM32 |
| | 281 | else |
| | 282 | ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) |
| | 283 | $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) |
| | 284 | endif |
| | 285 | endif |
| | 286 | endif |
| | 287 | |
| | 288 | # When linking a 32-bit executable the LLVM linker cannot cope with a |
| | 289 | # 32-bit load address that has been sign-extended to 64 bits. Simply |
| | 290 | # remove the upper 32 bits then, as it is safe to do so with other |
| | 291 | # linkers. |
| | 292 | ifdef CONFIG_64BIT |
| | 293 | load-ld = $(load-y) |
| | 294 | else |
| | 295 | load-ld = $(subst 0xffffffff,0x,$(load-y)) |
| | 296 | endif |
| | 297 | |
| | 298 | KBUILD_AFLAGS += $(cflags-y) |
| | 299 | KBUILD_CFLAGS += $(cflags-y) |
| | 300 | KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld) |
| | 301 | KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) |
| | 302 | |
| | 303 | bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ |
| | 304 | LINKER_LOAD_ADDRESS=$(load-ld) \ |
| | 305 | VMLINUX_ENTRY_ADDRESS=$(entry-y) \ |
| | 306 | PLATFORM="$(platform-y)" \ |
| | 307 | ITS_INPUTS="$(its-y)" |
| | 308 | ifdef CONFIG_32BIT |
| | 309 | bootvars-y += ADDR_BITS=32 |
| | 310 | endif |
| | 311 | ifdef CONFIG_64BIT |
| | 312 | bootvars-y += ADDR_BITS=64 |
| | 313 | endif |
| | 314 | |
| | 315 | # This is required to get dwarf unwinding tables into .debug_frame |
| | 316 | # instead of .eh_frame so we don't discard them. |
| | 317 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
| | 318 | |
| | 319 | KBUILD_LDFLAGS += -m $(ld-emul) |
| | 320 | |
| | 321 | ifdef CONFIG_MIPS |
| | 322 | CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ |
| | 323 | egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \ |
| | 324 | sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') |
| | 325 | endif |
| | 326 | |
| | 327 | OBJCOPYFLAGS += --remove-section=.reginfo |
| | 328 | |
| | 329 | head-y := arch/mips/kernel/head.o |
| | 330 | |
| | 331 | libs-y += arch/mips/lib/ |
| | 332 | libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ |
| | 333 | |
| | 334 | # See arch/mips/Kbuild for content of core part of the kernel |
| | 335 | core-y += arch/mips/ |
| | 336 | |
| | 337 | drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/ |
| | 338 | drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ |
| | 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 | |
| | 370 | ifdef CONFIG_LASAT |
| | 371 | rom.bin rom.sw: vmlinux |
| | 372 | $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ |
| | 373 | $(bootvars-y) $@ |
| | 374 | endif |
| | 375 | |
| | 376 | # |
| | 377 | # Some machines like the Indy need 32-bit ELF binaries for booting purposes. |
| | 378 | # Other need ECOFF, so we build a 32-bit ELF binary for them which we then |
| | 379 | # convert to ECOFF using elf2ecoff. |
| | 380 | # |
| | 381 | quiet_cmd_32 = OBJCOPY $@ |
| | 382 | cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| | 383 | vmlinux.32: vmlinux |
| | 384 | $(call cmd,32) |
| | 385 | |
| | 386 | # |
| | 387 | # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit |
| | 388 | # ELF files from 32-bit files by conversion. |
| | 389 | # |
| | 390 | quiet_cmd_64 = OBJCOPY $@ |
| | 391 | cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| | 392 | vmlinux.64: vmlinux |
| | 393 | $(call cmd,64) |
| | 394 | |
| | 395 | all: $(all-y) $(KBUILD_DTBS) |
| | 396 | |
| | 397 | # boot |
| | 398 | $(boot-y): $(vmlinux-32) FORCE |
| | 399 | $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ |
| | 400 | $(bootvars-y) arch/mips/boot/$@ |
| | 401 | |
| | 402 | ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| | 403 | # boot/compressed |
| | 404 | $(bootz-y): $(vmlinux-32) FORCE |
| | 405 | $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ |
| | 406 | $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ |
| | 407 | else |
| | 408 | vmlinuz: FORCE |
| | 409 | @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' |
| | 410 | /bin/false |
| | 411 | endif |
| | 412 | |
| | 413 | |
| | 414 | CLEAN_FILES += vmlinux.32 vmlinux.64 |
| | 415 | |
| | 416 | # device-trees |
| | 417 | core-y += arch/mips/boot/dts/ |
| | 418 | |
| | 419 | archprepare: |
| | 420 | ifdef CONFIG_MIPS32_N32 |
| | 421 | @$(kecho) ' Checking missing-syscalls for N32' |
| | 422 | $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" |
| | 423 | endif |
| | 424 | ifdef CONFIG_MIPS32_O32 |
| | 425 | @$(kecho) ' Checking missing-syscalls for O32' |
| | 426 | $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" |
| | 427 | endif |
| | 428 | |
| | 429 | install: |
| | 430 | $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) |
| | 431 | ifdef CONFIG_SYS_SUPPORTS_ZBOOT |
| | 432 | $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) |
| | 433 | endif |
| | 434 | $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) |
| | 435 | $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) |
| | 436 | |
| | 437 | archclean: |
| | 438 | $(Q)$(MAKE) $(clean)=arch/mips/boot |
| | 439 | $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed |
| | 440 | $(Q)$(MAKE) $(clean)=arch/mips/boot/tools |
| | 441 | $(Q)$(MAKE) $(clean)=arch/mips/lasat |
| | 442 | |
| | 443 | archheaders: |
| | 444 | $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all |
| | 445 | |
| | 446 | define archhelp |
| | 447 | echo ' install - install kernel into $(INSTALL_PATH)' |
| | 448 | echo ' vmlinux.ecoff - ECOFF boot image' |
| | 449 | echo ' vmlinux.bin - Raw binary boot image' |
| | 450 | echo ' vmlinux.srec - SREC boot image' |
| | 451 | echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' |
| | 452 | echo ' vmlinuz - Compressed boot(zboot) image' |
| | 453 | echo ' vmlinuz.ecoff - ECOFF zboot image' |
| | 454 | echo ' vmlinuz.bin - Raw binary zboot image' |
| | 455 | echo ' vmlinuz.srec - SREC zboot image' |
| | 456 | echo ' uImage - U-Boot image' |
| | 457 | echo ' uImage.bin - U-Boot image (uncompressed)' |
| | 458 | echo ' uImage.bz2 - U-Boot image (bz2)' |
| | 459 | echo ' uImage.gz - U-Boot image (gzip)' |
| | 460 | echo ' uImage.lzma - U-Boot image (lzma)' |
| | 461 | echo ' uImage.lzo - U-Boot image (lzo)' |
| | 462 | echo ' uzImage.bin - U-Boot image (self-extracting)' |
| | 463 | echo |
| | 464 | echo ' These will be default as appropriate for a configured platform.' |
| | 465 | echo |
| | 466 | echo ' If you are targeting a system supported by generic kernels you may' |
| | 467 | echo ' configure the kernel for a given architecture target like so:' |
| | 468 | echo |
| | 469 | echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' |
| | 470 | echo |
| | 471 | echo ' Where BOARDS is some subset of the following:' |
| | 472 | for board in $(sort $(BOARDS)); do echo " $${board}"; done |
| | 473 | echo |
| | 474 | echo ' Specifically the following generic default configurations are' |
| | 475 | echo ' supported:' |
| | 476 | echo |
| | 477 | $(foreach cfg,$(generic_defconfigs), |
| | 478 | printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) |
| | 479 | echo |
| | 480 | echo ' The following legacy default configurations have been converted to' |
| | 481 | echo ' generic and can still be used:' |
| | 482 | echo |
| | 483 | $(foreach cfg,$(sort $(legacy_defconfigs)), |
| | 484 | printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) |
| | 485 | echo |
| | 486 | echo ' Otherwise, the following default configurations are available:' |
| | 487 | endef |
| | 488 | |
| | 489 | generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic |
| | 490 | generic_defconfigs := |
| | 491 | |
| | 492 | # |
| | 493 | # If the user generates a generic kernel configuration without specifying a |
| | 494 | # list of boards to include the config fragments for, default to including all |
| | 495 | # available board config fragments. |
| | 496 | # |
| | 497 | ifeq ($(BOARDS),) |
| | 498 | BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) |
| | 499 | endif |
| | 500 | |
| | 501 | # |
| | 502 | # Generic kernel configurations which merge generic_defconfig with the |
| | 503 | # appropriate config fragments from arch/mips/configs/generic/, resulting in |
| | 504 | # the ability to easily configure the kernel for a given architecture, |
| | 505 | # endianness & set of boards without duplicating the needed configuration in |
| | 506 | # hundreds of defconfig files. |
| | 507 | # |
| | 508 | define gen_generic_defconfigs |
| | 509 | $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), |
| | 510 | target := $(bits)$(rev)$(filter el,$(endian))_defconfig |
| | 511 | generic_defconfigs += $$(target) |
| | 512 | $$(target): $(generic_config_dir)/$(bits)$(rev).config |
| | 513 | $$(target): $(generic_config_dir)/$(endian).config |
| | 514 | ))) |
| | 515 | endef |
| | 516 | |
| | 517 | $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) |
| | 518 | $(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) |
| | 519 | |
| | 520 | define describe_generic_defconfig |
| | 521 | $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) |
| | 522 | endef |
| | 523 | |
| | 524 | .PHONY: $(generic_defconfigs) |
| | 525 | $(generic_defconfigs): |
| | 526 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ |
| | 527 | -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ |
| | 528 | grep -Ev '^#' |
| | 529 | $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ |
| | 530 | $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ |
| | 531 | KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null |
| | 532 | $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ |
| | 533 | $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ |
| | 534 | "$(origin BOARDS)" $(BOARDS) |
| | 535 | $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig |
| | 536 | |
| | 537 | # |
| | 538 | # Prevent generic merge_config rules attempting to merge single fragments |
| | 539 | # |
| | 540 | $(generic_config_dir)/%.config: ; |
| | 541 | |
| | 542 | # |
| | 543 | # Prevent direct use of generic_defconfig, which is intended to be used as the |
| | 544 | # basis of the various ISA-specific targets generated above. |
| | 545 | # |
| | 546 | .PHONY: generic_defconfig |
| | 547 | generic_defconfig: |
| | 548 | $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" |
| | 549 | $(Q)echo "used via an ISA-specific target from the following list:" |
| | 550 | $(Q)echo |
| | 551 | $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done |
| | 552 | $(Q)echo |
| | 553 | $(Q)false |
| | 554 | |
| | 555 | # |
| | 556 | # Legacy defconfig compatibility - these targets used to be real defconfigs but |
| | 557 | # now that the boards have been converted to use the generic kernel they are |
| | 558 | # wrappers around the generic rules above. |
| | 559 | # |
| | 560 | legacy_defconfigs += ocelot_defconfig |
| | 561 | ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot |
| | 562 | |
| | 563 | legacy_defconfigs += sead3_defconfig |
| | 564 | sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 |
| | 565 | |
| | 566 | legacy_defconfigs += sead3micro_defconfig |
| | 567 | sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 |
| | 568 | |
| | 569 | legacy_defconfigs += xilfpga_defconfig |
| | 570 | xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga |
| | 571 | |
| | 572 | .PHONY: $(legacy_defconfigs) |
| | 573 | $(legacy_defconfigs): |
| | 574 | $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) |
projects / mirror_ubuntu-focal-kernel.git / blame_incremental