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.
>> 12 #
>> 13
>> 14 archscripts: scripts_basic
>> 15 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
>> 16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)
>> 17 $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check
>> 18 endif
>> 19 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
5 20
6 KBUILD_DEFCONFIG := haps_hs_smp_defconfig !! 21 KBUILD_DEFCONFIG := 32r2el_defconfig
>> 22 KBUILD_DTBS := dtbs
7 23
8 ifeq ($(CROSS_COMPILE),) !! 24 #
9 CROSS_COMPILE := $(call cc-cross-prefix, arc-l !! 25 # Select the object file format to substitute into the linker script.
>> 26 #
>> 27 ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 28 32bit-tool-archpref = mipsel
>> 29 64bit-tool-archpref = mips64el
>> 30 32bit-bfd = elf32-tradlittlemips
>> 31 64bit-bfd = elf64-tradlittlemips
>> 32 32bit-emul = elf32ltsmip
>> 33 64bit-emul = elf64ltsmip
>> 34 else
>> 35 32bit-tool-archpref = mips
>> 36 64bit-tool-archpref = mips64
>> 37 32bit-bfd = elf32-tradbigmips
>> 38 64bit-bfd = elf64-tradbigmips
>> 39 32bit-emul = elf32btsmip
>> 40 64bit-emul = elf64btsmip
10 endif 41 endif
11 42
12 cflags-y += -fno-common -pipe -fno-buil !! 43 ifdef CONFIG_32BIT
>> 44 tool-archpref = $(32bit-tool-archpref)
>> 45 UTS_MACHINE := mips
>> 46 endif
>> 47 ifdef CONFIG_64BIT
>> 48 tool-archpref = $(64bit-tool-archpref)
>> 49 UTS_MACHINE := mips64
>> 50 endif
13 51
14 tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mc !! 52 ifdef cross_compiling
15 tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mc !! 53 ifeq ($(CROSS_COMPILE),)
>> 54 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
>> 55 endif
>> 56 endif
16 57
17 ifeq ($(CONFIG_ARC_TUNE_MCPU),) !! 58 ifdef CONFIG_FUNCTION_GRAPH_TRACER
18 cflags-y += $(t !! 59 ifndef KBUILD_MCOUNT_RA_ADDRESS
19 else !! 60 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
20 tune-mcpu := $(C !! 61 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
21 ifneq ($(call cc-option,$(tune-mcpu)),) !! 62 endif
22 cflags-y += $(t !! 63 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 64 endif
>> 65 cflags-y += $(call cc-option, -mno-check-zero-division)
>> 66
>> 67 ifdef CONFIG_32BIT
>> 68 ld-emul = $(32bit-emul)
>> 69 vmlinux-32 = vmlinux
>> 70 vmlinux-64 = vmlinux.64
>> 71
>> 72 cflags-y += -mabi=32
29 endif 73 endif
30 74
31 ifdef CONFIG_ARC_CURR_IN_REG !! 75 ifdef CONFIG_64BIT
32 # For a global register definition, make sure !! 76 ld-emul = $(64bit-emul)
33 # We had a customer reported bug where some co !! 77 vmlinux-32 = vmlinux.32
34 # any kernel headers, and missing the global r !! 78 vmlinux-64 = vmlinux
35 # Can't do unconditionally because of recursiv !! 79
36 # due to <linux/thread_info.h> !! 80 cflags-y += -mabi=64
37 LINUXINCLUDE += -include $(srctree)/arch/a <<
38 cflags-y += -ffixed-gp <<
39 endif 81 endif
40 82
41 cflags-y += -fs !! 83 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
>> 84 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
>> 85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
42 86
43 cflags-$(CONFIG_ARC_HAS_LLSC) += -ml !! 87 #
44 cflags-$(CONFIG_ARC_HAS_SWAPE) += -ms !! 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 $28 conflicts with
>> 91 # the current pointer optimization.
>> 92 #
>> 93 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
>> 94 # machines may also. Since BFD is incredibly buggy with respect to
>> 95 # crossformat linking we rely on the elf2ecoff tool for format conversion.
>> 96 #
>> 97 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
>> 98 cflags-y += -msoft-float
>> 99 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
>> 100 KBUILD_AFLAGS_MODULE += -mlong-calls
>> 101 KBUILD_CFLAGS_MODULE += -mlong-calls
45 102
46 ifdef CONFIG_ISA_ARCV2 !! 103 ifeq ($(CONFIG_RELOCATABLE),y)
>> 104 LDFLAGS_vmlinux += --emit-relocs
>> 105 endif
47 106
48 ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS !! 107 #
49 cflags-y += -mu !! 108 # pass -msoft-float to GAS if it supports it. However on newer binutils
50 else !! 109 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
51 cflags-y += -mn !! 110 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 111 #
>> 112 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
>> 113 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
52 endif 114 endif
53 115
54 ifndef CONFIG_ARC_HAS_LL64 !! 116 cflags-y += -ffreestanding
55 cflags-y += -mn !! 117
>> 118 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
>> 119 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
>> 120
>> 121 cflags-$(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 #
>> 136 cflags-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 #
>> 155 cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
>> 156
>> 157 #
>> 158 # CPU-dependent compiler/assembler options for optimization.
>> 159 #
>> 160 cflags-$(CONFIG_CPU_R3000) += -march=r3000
>> 161 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
>> 162 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
>> 163 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
>> 164 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
>> 165 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
>> 166 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
>> 167 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
>> 168 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg
>> 169 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
>> 170 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
>> 171 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap
>> 172 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap
>> 173 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
>> 174 cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg
>> 175 cflags-$(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-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
56 endif 191 endif
>> 192 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
>> 193 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
57 194
58 ifndef CONFIG_ARC_HAS_DIV_REM !! 195 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
59 cflags-y += -mn !! 196 cflags-$(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-$(smartmips-ase) += -msmartmips -Wa,--no-warn
60 endif 212 endif
>> 213 ifeq ($(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/
61 243
>> 244 #
>> 245 # Kernel compression
>> 246 #
>> 247 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 248 COMPRESSION_FNAME = vmlinuz
>> 249 else
>> 250 COMPRESSION_FNAME = vmlinux
62 endif 251 endif
63 252
64 cfi := $(call as-instr,.cfi_startproc\n.cfi_en !! 253 #
65 cflags-$(CONFIG_ARC_DW2_UNWIND) += -fa !! 254 # Board-dependent options and extra files
>> 255 #
>> 256 ifdef need-compiler
>> 257 include $(srctree)/arch/mips/Kbuild.platforms
>> 258 endif
66 259
67 # small data is default for elf32 tool-chain. !! 260 ifdef CONFIG_PHYSICAL_START
68 # This also allows repurposing GP as scratch r !! 261 load-y = $(CONFIG_PHYSICAL_START)
69 disable_small_data := y !! 262 endif
70 cflags-$(disable_small_data) += -mn <<
71 263
72 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb !! 264 entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
73 ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB !! 265 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
>> 266 drivers-$(CONFIG_PCI) += arch/mips/pci/
74 267
75 LIBGCC = $(shell $(CC) $(cflags-y) --print-li !! 268 #
>> 269 # Automatically detect the build format. By default we choose
>> 270 # the elf format according to the load address.
>> 271 # We can always force a build with a 64-bits symbol format by
>> 272 # passing 'KBUILD_SYM32=no' option to the make's command line.
>> 273 #
>> 274 ifdef CONFIG_64BIT
>> 275 ifndef KBUILD_SYM32
>> 276 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
>> 277 KBUILD_SYM32 = y
>> 278 endif
>> 279 endif
>> 280
>> 281 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
>> 282 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
>> 283 else
>> 284 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
>> 285 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
>> 286 endif
>> 287 endif
>> 288 endif
76 289
77 # Modules with short calls might break for cal !! 290 # When linking a 32-bit executable the LLVM linker cannot cope with a
78 KBUILD_CFLAGS_MODULE += -mlong-calls -mno-m !! 291 # 32-bit load address that has been sign-extended to 64 bits. Simply
>> 292 # remove the upper 32 bits then, as it is safe to do so with other
>> 293 # linkers.
>> 294 ifdef CONFIG_64BIT
>> 295 load-ld = $(load-y)
>> 296 else
>> 297 load-ld = $(subst 0xffffffff,0x,$(load-y))
>> 298 endif
79 299
80 # Finally dump eveything into kernel build sys !! 300 KBUILD_AFLAGS += $(cflags-y)
81 KBUILD_CFLAGS += $(cflags-y) 301 KBUILD_CFLAGS += $(cflags-y)
82 KBUILD_AFLAGS += $(KBUILD_CFLAGS) !! 302 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
83 KBUILD_LDFLAGS += $(ldflags-y) !! 303 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
>> 304
>> 305 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
>> 306 LINKER_LOAD_ADDRESS=$(load-ld) \
>> 307 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
>> 308 PLATFORM="$(platform-y)" \
>> 309 ITS_INPUTS="$(its-y)"
>> 310 ifdef CONFIG_32BIT
>> 311 bootvars-y += ADDR_BITS=32
>> 312 endif
>> 313 ifdef CONFIG_64BIT
>> 314 bootvars-y += ADDR_BITS=64
>> 315 endif
>> 316
>> 317 # This is required to get dwarf unwinding tables into .debug_frame
>> 318 # instead of .eh_frame so we don't discard them.
>> 319 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
>> 320
>> 321 KBUILD_LDFLAGS += -m $(ld-emul)
>> 322
>> 323 ifdef CONFIG_MIPS
>> 324 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>> 325 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
>> 326 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
>> 327 endif
>> 328
>> 329 OBJCOPYFLAGS += --remove-section=.reginfo
>> 330
>> 331 head-y := arch/mips/kernel/head.o
>> 332
>> 333 libs-y += arch/mips/lib/
>> 334 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
>> 335
>> 336 drivers-y += arch/mips/crypto/
>> 337
>> 338 # suspend and hibernation support
>> 339 drivers-$(CONFIG_PM) += arch/mips/power/
>> 340
>> 341 # boot image targets (arch/mips/boot/)
>> 342 boot-y := vmlinux.bin
>> 343 boot-y += vmlinux.ecoff
>> 344 boot-y += vmlinux.srec
>> 345 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 346 boot-y += uImage
>> 347 boot-y += uImage.bin
>> 348 boot-y += uImage.bz2
>> 349 boot-y += uImage.gz
>> 350 boot-y += uImage.lzma
>> 351 boot-y += uImage.lzo
>> 352 endif
>> 353 boot-y += vmlinux.itb
>> 354 boot-y += vmlinux.gz.itb
>> 355 boot-y += vmlinux.bz2.itb
>> 356 boot-y += vmlinux.lzma.itb
>> 357 boot-y += vmlinux.lzo.itb
>> 358
>> 359 # compressed boot image targets (arch/mips/boot/compressed/)
>> 360 bootz-y := vmlinuz
>> 361 bootz-y += vmlinuz.bin
>> 362 bootz-y += vmlinuz.ecoff
>> 363 bootz-y += vmlinuz.srec
>> 364 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 365 bootz-y += uzImage.bin
>> 366 endif
>> 367 bootz-y += vmlinuz.itb
>> 368
>> 369 #
>> 370 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
>> 371 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
>> 372 # convert to ECOFF using elf2ecoff.
>> 373 #
>> 374 quiet_cmd_32 = OBJCOPY $@
>> 375 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 376 vmlinux.32: vmlinux
>> 377 $(call cmd,32)
>> 378
>> 379 #
>> 380 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
>> 381 # ELF files from 32-bit files by conversion.
>> 382 #
>> 383 quiet_cmd_64 = OBJCOPY $@
>> 384 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 385 vmlinux.64: vmlinux
>> 386 $(call cmd,64)
>> 387
>> 388 all: $(all-y) $(KBUILD_DTBS)
>> 389
>> 390 # boot
>> 391 $(boot-y): $(vmlinux-32) FORCE
>> 392 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
>> 393 $(bootvars-y) arch/mips/boot/$@
>> 394
>> 395 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 396 # boot/compressed
>> 397 $(bootz-y): $(vmlinux-32) FORCE
>> 398 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
>> 399 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@
>> 400 else
>> 401 vmlinuz: FORCE
>> 402 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
>> 403 /bin/false
>> 404 endif
>> 405
>> 406
>> 407 CLEAN_FILES += vmlinux.32 vmlinux.64
>> 408
>> 409 # device-trees
>> 410 core-y += arch/mips/boot/dts/
>> 411
>> 412 archprepare:
>> 413 ifdef CONFIG_MIPS32_N32
>> 414 @$(kecho) ' Checking missing-syscalls for N32'
>> 415 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
>> 416 endif
>> 417 ifdef CONFIG_MIPS32_O32
>> 418 @$(kecho) ' Checking missing-syscalls for O32'
>> 419 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
>> 420 endif
>> 421
>> 422 install:
>> 423 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
>> 424 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 425 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
>> 426 endif
>> 427 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
>> 428 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
>> 429
>> 430 archheaders:
>> 431 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
>> 432
>> 433 define archhelp
>> 434 echo ' install - install kernel into $(INSTALL_PATH)'
>> 435 echo ' vmlinux.ecoff - ECOFF boot image'
>> 436 echo ' vmlinux.bin - Raw binary boot image'
>> 437 echo ' vmlinux.srec - SREC boot image'
>> 438 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
>> 439 echo ' vmlinuz - Compressed boot(zboot) image'
>> 440 echo ' vmlinuz.ecoff - ECOFF zboot image'
>> 441 echo ' vmlinuz.bin - Raw binary zboot image'
>> 442 echo ' vmlinuz.srec - SREC zboot image'
>> 443 echo ' uImage - U-Boot image'
>> 444 echo ' uImage.bin - U-Boot image (uncompressed)'
>> 445 echo ' uImage.bz2 - U-Boot image (bz2)'
>> 446 echo ' uImage.gz - U-Boot image (gzip)'
>> 447 echo ' uImage.lzma - U-Boot image (lzma)'
>> 448 echo ' uImage.lzo - U-Boot image (lzo)'
>> 449 echo ' uzImage.bin - U-Boot image (self-extracting)'
>> 450 echo
>> 451 echo ' These will be default as appropriate for a configured platform.'
>> 452 echo
>> 453 echo ' If you are targeting a system supported by generic kernels you may'
>> 454 echo ' configure the kernel for a given architecture target like so:'
>> 455 echo
>> 456 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
>> 457 echo
>> 458 echo ' Where BOARDS is some subset of the following:'
>> 459 for board in $(sort $(BOARDS)); do echo " $${board}"; done
>> 460 echo
>> 461 echo ' Specifically the following generic default configurations are'
>> 462 echo ' supported:'
>> 463 echo
>> 464 $(foreach cfg,$(generic_defconfigs),
>> 465 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
>> 466 echo
>> 467 echo ' The following legacy default configurations have been converted to'
>> 468 echo ' generic and can still be used:'
>> 469 echo
>> 470 $(foreach cfg,$(sort $(legacy_defconfigs)),
>> 471 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
>> 472 echo
>> 473 echo ' Otherwise, the following default configurations are available:'
>> 474 endef
>> 475
>> 476 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
>> 477 generic_defconfigs :=
84 478
85 # w/o this dtb won't embed into kernel binary !! 479 #
86 core-y += arch/arc/boot/dts/ !! 480 # If the user generates a generic kernel configuration without specifying a
>> 481 # list of boards to include the config fragments for, default to including all
>> 482 # available board config fragments.
>> 483 #
>> 484 ifeq ($(BOARDS),)
>> 485 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
>> 486 endif
>> 487
>> 488 #
>> 489 # Generic kernel configurations which merge generic_defconfig with the
>> 490 # appropriate config fragments from arch/mips/configs/generic/, resulting in
>> 491 # the ability to easily configure the kernel for a given architecture,
>> 492 # endianness & set of boards without duplicating the needed configuration in
>> 493 # hundreds of defconfig files.
>> 494 #
>> 495 define gen_generic_defconfigs
>> 496 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
>> 497 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
>> 498 generic_defconfigs += $$(target)
>> 499 $$(target): $(generic_config_dir)/$(bits)$(rev).config
>> 500 $$(target): $(generic_config_dir)/$(endian).config
>> 501 )))
>> 502 endef
>> 503
>> 504 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
>> 505 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
>> 506
>> 507 define describe_generic_defconfig
>> 508 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
>> 509 endef
>> 510
>> 511 .PHONY: $(generic_defconfigs)
>> 512 $(generic_defconfigs):
>> 513 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
>> 514 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
>> 515 grep -Ev '^#'
>> 516 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
>> 517 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
>> 518 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
>> 519 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
>> 520 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
>> 521 "$(origin BOARDS)" $(BOARDS)
>> 522 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
87 523
88 core-y += arch/arc/pl !! 524 #
89 core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/pl !! 525 # Prevent generic merge_config rules attempting to merge single fragments
90 core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/pl !! 526 #
91 core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/pl !! 527 $(generic_config_dir)/%.config: ;
92 528
93 libs-y += arch/arc/lib/ $(LIBGCC) !! 529 #
>> 530 # Prevent direct use of generic_defconfig, which is intended to be used as the
>> 531 # basis of the various ISA-specific targets generated above.
>> 532 #
>> 533 .PHONY: generic_defconfig
>> 534 generic_defconfig:
>> 535 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
>> 536 $(Q)echo "used via an ISA-specific target from the following list:"
>> 537 $(Q)echo
>> 538 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
>> 539 $(Q)echo
>> 540 $(Q)false
94 541
95 boot := arch/arc/boot !! 542 #
>> 543 # Legacy defconfig compatibility - these targets used to be real defconfigs but
>> 544 # now that the boards have been converted to use the generic kernel they are
>> 545 # wrappers around the generic rules above.
>> 546 #
>> 547 legacy_defconfigs += ocelot_defconfig
>> 548 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
96 549
97 boot_targets := uImage.bin uImage.gz uImage.lz !! 550 legacy_defconfigs += sead3_defconfig
>> 551 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
98 552
99 PHONY += $(boot_targets) !! 553 legacy_defconfigs += sead3micro_defconfig
100 $(boot_targets): vmlinux !! 554 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
101 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
102 555
103 uimage-default-y := uIm !! 556 legacy_defconfigs += xilfpga_defconfig
104 uimage-default-$(CONFIG_KERNEL_GZIP) := uIm !! 557 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
105 uimage-default-$(CONFIG_KERNEL_LZMA) := uIm <<
106 558
107 PHONY += uImage !! 559 legacy_defconfigs += pistachio_defconfig
108 uImage: $(uimage-default-y) !! 560 pistachio_defconfig-y := 32r2el_defconfig BOARDS=marduk
109 @ln -sf $< $(boot)/uImage <<
110 @$(kecho) ' Image $(boot)/uImage is r <<
111 561
112 CLEAN_FILES += $(boot)/uImage !! 562 .PHONY: $(legacy_defconfigs)
>> 563 $(legacy_defconfigs):
>> 564 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
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