1# 2# Copyright (c) 2023-2025, Arm Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7# 8# TF-A uses three toolchains: 9# 10# - The host toolchain (`host`) for building native tools 11# - The AArch32 toolchain (`aarch32`) for building Arm AArch32 images 12# - The AArch64 toolchain (`aarch64`) for building Arm AArch64 images 13# 14# In the main Makefile only one of the two Arm toolchains is enabled in any 15# given build, but individual tools and libraries may need access to both. 16# 17 18ifndef toolchain-mk 19 toolchain-mk := $(lastword $(MAKEFILE_LIST)) 20 21 include $(dir $(toolchain-mk))utilities.mk 22 23 # 24 # Make assigns generic default values to `CC`, `CPP`, `AS`, etc. if they 25 # are not explicitly assigned values by the user. These are usually okay 26 # for very simple programs when building for the host system, but we 27 # need greater control over the toolchain flow. 28 # 29 # Therefore, we undefine these built-in variables if they have default 30 # values, so that we can provide our own default values later instead. 31 # 32 33 ifeq ($(origin CC),default) 34 undefine CC 35 endif 36 37 ifeq ($(origin CPP),default) 38 undefine CPP 39 endif 40 41 ifeq ($(origin AS),default) 42 undefine AS 43 endif 44 45 ifeq ($(origin AR),default) 46 undefine AR 47 endif 48 49 ifeq ($(origin LD),default) 50 undefine LD 51 endif 52 53 # 54 # The full list of toolchains supported by TF-A. 55 # 56 # Each of these toolchains defines a file of the same name in the 57 # `toolchains` directory, which must configure the following variables: 58 # 59 # - <toolchain>-name 60 # 61 # A human-readable name for the toolchain, 62 # 63 # Additionally, for every tool class, it must also define: 64 # 65 # - <toolchain>-<tool-class>-parameter 66 # 67 # The command line or environment variable used to set the tool for 68 # for the given tool class. 69 # 70 # - <toolchain>-<tool-class>-default-id 71 # 72 # The default tool identifier used if the tool for the given tool 73 # class cannot be identified. 74 # 75 # - <toolchain>-<tool-class>-default 76 # 77 # The default commands to try, in the order defined, for the given 78 # tool class if the user does not explicitly provide one, and if the 79 # command could not be derived from the C compiler. 80 # 81 82 toolchains := host # Used for host targets 83 toolchains += aarch32 # Used for AArch32 targets 84 toolchains += aarch64 # Used for AArch64 targets 85 toolchains += rk3399-m0 # Used for RK3399 Cortex-M0 targets 86 87 include $(toolchains:%=$(dir $(toolchain-mk))toolchains/%.mk) 88 89 # 90 # Configure tool classes that we recognize. 91 # 92 # In the context of this build system, a tool class identifies a 93 # specific role or type of tool in the toolchain. 94 # 95 96 toolchain-tool-classes := cc 97 toolchain-tool-class-name-cc := C compiler 98 99 toolchain-tool-classes += cpp 100 toolchain-tool-class-name-cpp := C preprocessor 101 102 toolchain-tool-classes += as 103 toolchain-tool-class-name-as := assembler 104 105 toolchain-tool-classes += ld 106 toolchain-tool-class-name-ld := linker 107 108 toolchain-tool-classes += oc 109 toolchain-tool-class-name-oc := object copier 110 111 toolchain-tool-classes += od 112 toolchain-tool-class-name-od := object dumper 113 114 toolchain-tool-classes += ar 115 toolchain-tool-class-name-ar := archiver 116 117 toolchain-tool-classes += dtc 118 toolchain-tool-class-name-dtc := device tree compiler 119 120 toolchain-tool-classes += poetry 121 toolchain-tool-class-name-poetry := Python Poetry package manager 122 123 # 124 # Configure tools that we recognize. 125 # 126 # Here we declare the list of specific toolchain tools that we know how 127 # to interact with. We don't organize these into tool classes yet - that 128 # happens further down. 129 # 130 131 # Arm® Compiler for Embedded 132 toolchain-tools := arm-clang 133 toolchain-tool-name-arm-clang := Arm® Compiler for Embedded `armclang` 134 135 toolchain-tools += arm-link 136 toolchain-tool-name-arm-link := Arm® Compiler for Embedded `armlink` 137 138 toolchain-tools += arm-ar 139 toolchain-tool-name-arm-ar := Arm® Compiler for Embedded `armar` 140 141 toolchain-tools += arm-fromelf 142 toolchain-tool-name-arm-fromelf := Arm® Compiler for Embedded `fromelf` 143 144 # LLVM Project 145 toolchain-tools += llvm-clang 146 toolchain-tool-name-llvm-clang := LLVM Clang (`clang`) 147 148 toolchain-tools += llvm-lld 149 toolchain-tool-name-llvm-lld := LLVM LLD (`lld`) 150 151 toolchain-tools += llvm-objcopy 152 toolchain-tool-name-llvm-objcopy := LLVM `llvm-objcopy` 153 154 toolchain-tools += llvm-objdump 155 toolchain-tool-name-llvm-objdump := LLVM `llvm-objdump` 156 157 toolchain-tools += llvm-ar 158 toolchain-tool-name-llvm-ar := LLVM `llvm-ar` 159 160 # GNU Compiler Collection & GNU Binary Utilities 161 toolchain-tools += gnu-gcc 162 toolchain-tool-name-gnu-gcc := GNU GCC (`gcc`) 163 164 toolchain-tools += gnu-ld 165 toolchain-tool-name-gnu-ld := GNU LD (`ld.bfd`) 166 167 toolchain-tools += gnu-objcopy 168 toolchain-tool-name-gnu-objcopy := GNU `objcopy` 169 170 toolchain-tools += gnu-objdump 171 toolchain-tool-name-gnu-objdump := GNU `objdump` 172 173 toolchain-tools += gnu-ar 174 toolchain-tool-name-gnu-ar := GNU `ar` 175 176 # Other tools 177 toolchain-tools += generic-dtc 178 toolchain-tool-name-generic-dtc := Device Tree Compiler (`dtc`) 179 180 toolchain-tools += generic-poetry 181 toolchain-tool-name-generic-poetry := Poetry (`poetry`) 182 183 # 184 # Assign tools to tool classes. 185 # 186 # Multifunctional tools, i.e. tools which can perform multiple roles in 187 # a toolchain, may be specified in multiple tool class lists. For 188 # example, a C compiler which can also perform the role of a linker may 189 # be placed in both `toolchain-tools-cc` and `toolchain-tools-ld`. 190 # 191 192 # C-related tools 193 toolchain-tools-cc := arm-clang llvm-clang gnu-gcc # C compilers 194 toolchain-tools-cpp := arm-clang llvm-clang gnu-gcc # C preprocessors 195 196 # Assembly-related tools 197 toolchain-tools-as := arm-clang llvm-clang gnu-gcc # Assemblers 198 199 # Linking and object-handling tools 200 toolchain-tools-ld := arm-clang arm-link llvm-clang llvm-lld gnu-gcc gnu-ld # Linkers 201 toolchain-tools-oc := arm-fromelf llvm-objcopy gnu-objcopy # Object copiers 202 toolchain-tools-od := arm-fromelf llvm-objdump gnu-objdump # Object dumpers 203 toolchain-tools-ar := arm-ar llvm-ar gnu-ar # Archivers 204 205 # Other tools 206 toolchain-tools-dtc := generic-dtc # Device tree compilers 207 toolchain-tools-poetry := generic-poetry # Python Poetry package manager 208 209 # 210 # Helper functions to identify toolchain tools. 211 # 212 # The functions defined in this section return a tool identifier when 213 # given a path to a binary. We generally check a help or version string 214 # to more reliably identify tools than by looking at the path alone 215 # (e.g. `gcc` on macOS is actually Apple Clang). 216 # 217 # Each tool-guessing function (`toolchain-guess-tool-$(tool)`) takes a 218 # single argument giving the path to the tool to guess, and returns a 219 # non-empty value if the tool corresponds to the tool identifier 220 # `$(tool)`: 221 # 222 # $(call toolchain-guess-tool-llvm-clang,aarch64-none-elf-gcc) # <empty> 223 # $(call toolchain-guess-tool-gnu-gcc,aarch64-none-elf-gcc) # <non-empty> 224 # 225 # The `toolchain-guess-tool` function tries to find the corresponding tool 226 # identifier for a tool given its path. It takes two arguments: 227 # 228 # - $(1): a list of candidate tool identifiers to check 229 # - $(2): the path to the tool to identify 230 # 231 # If any of the guess functions corresponding to candidate tool 232 # identifiers return a non-empty value then the tool identifier of the 233 # first function to do so is returned: 234 # 235 # $(call toolchain-guess-tool,gnu-gcc llvm-clang,armclang) # <empty> 236 # $(call toolchain-guess-tool,gnu-gcc llvm-clang,clang-14) # llvm-clang 237 # $(call toolchain-guess-tool,gnu-gcc llvm-clang,aarch64-none-elf-gcc-12) # gnu-gcc 238 # 239 # Tools are checked in the order that they are provided, and the first 240 # match is returned. 241 # 242 243 # Arm Compiler for Embedded 244 toolchain-guess-tool-arm-clang = $(shell $(1) --version 2>&1 </dev/null | grep -o "Tool: armclang") 245 toolchain-guess-tool-arm-link = $(shell $(1) --help 2>&1 </dev/null | grep -o "Tool: armlink") 246 toolchain-guess-tool-arm-fromelf = $(shell $(1) --help 2>&1 </dev/null | grep -o "Tool: fromelf") 247 toolchain-guess-tool-arm-ar = $(shell $(1) --version 2>&1 </dev/null | grep -o "Tool: armar") 248 249 # LLVM Project 250 toolchain-guess-tool-llvm-clang = $(shell $(1) -v 2>&1 </dev/null | grep -o "clang version") 251 toolchain-guess-tool-llvm-lld = $(shell $(1) --help 2>&1 </dev/null | grep -o "OVERVIEW: lld") 252 toolchain-guess-tool-llvm-objcopy = $(shell $(1) --help 2>&1 </dev/null | grep -o "llvm-objcopy tool") 253 toolchain-guess-tool-llvm-objdump = $(shell $(1) --help 2>&1 </dev/null | grep -o "llvm object file dumper") 254 toolchain-guess-tool-llvm-ar = $(shell $(1) --help 2>&1 </dev/null | grep -o "LLVM Archiver") 255 256 # GNU Compiler Collection & GNU Binary Utilities 257 toolchain-guess-tool-gnu-gcc = $(shell $(1) -v 2>&1 </dev/null | grep -o "gcc version") 258 toolchain-guess-tool-gnu-ld = $(shell $(1) -v 2>&1 </dev/null | grep -o "GNU ld") 259 toolchain-guess-tool-gnu-objcopy = $(shell $(1) --version 2>&1 </dev/null | grep -o "GNU objcopy") 260 toolchain-guess-tool-gnu-objdump = $(shell $(1) --version 2>&1 </dev/null | grep -o "GNU objdump") 261 toolchain-guess-tool-gnu-ar = $(shell $(1) --version 2>&1 </dev/null | grep -o "GNU ar") 262 263 # Other tools 264 toolchain-guess-tool-generic-dtc = $(shell $(1) --version 2>&1 </dev/null | grep -o "Version: DTC") 265 toolchain-guess-tool-generic-poetry = $(shell $(1) --version 2>&1 </dev/null) 266 267 toolchain-guess-tool = $(if $(2),$(firstword $(foreach candidate,$(1),$\ 268 $(if $(call toolchain-guess-tool-$(candidate),$(2)),$(candidate))))) 269 270 # 271 # Get the index of the first valid tool path in a shell command. 272 # 273 # To support compiler wrappers like `ccache`, we need to be able to 274 # robustly identify which part of a shell command is the wrapper and 275 # which part is the wrapped. 276 # 277 # To do this, we iterate through each shell word in the string, query it 278 # to see if it is one the tools we would expect to see, and return its 279 # index. 280 # 281 # - $(1): A list of candidate tool identifiers to check. 282 # - $(2): The shell command to parse. 283 # 284 285 toolchain-tool-program-index = $\ 286 $(call with,p:candidates p:command,$(1),$(2),$\ 287 $$(firstword $$(call shell-map,$\ 288 toolchain-tool-program-index.map,$\ 289 $$(command)))) 290 291 toolchain-tool-program-index.map = $(and $\ 292 $(call which,$(1)),$\ 293 $(call toolchain-guess-tool,$(candidates),$(1)),$\ 294 $(2)) 295 296 # 297 # Strip any program wrappers from a tool's shell command. 298 # 299 # This function removes any program wrappers, like `ccache`, from the 300 # shell command of a tool. 301 # 302 # - $(1): A list of candidate tool identifiers to check. 303 # - $(2): The shell command to parse. 304 # 305 306 toolchain-tool-program = $(call shell-slice,$(2),$\ 307 $(call toolchain-tool-program-index,$(1),$(2))) 308 309 # 310 # Extract the program wrapper from a tool's shell command. 311 # 312 # This function returns any program wrappers, like `ccache`, from the 313 # shell command of a tool. 314 # 315 # - $(1): A list of candidate tool identifiers to check. 316 # - $(2): The shell command to parse. 317 # 318 319 toolchain-tool-wrapper = $(call shell-slice,$(2),1,$\ 320 $(call toolchain-tool-program-index,$(1),$(2))) 321 322 # 323 # Warn the user that a tool could not be identified. 324 # 325 # Parameters: 326 # 327 # - $1: The toolchain that the tool belongs to. 328 # - $2: The tool class that the tool belongs to. 329 # 330 331 define toolchain-warn-unrecognized 332 $(warning ) 333 $(warning The configured $($(1)-name) $(toolchain-tool-class-name-$(2)) could not be identified:) 334 $(warning ) 335 $(warning $(space) $($(1)-$(2)) ($($(1)-$(2)-origin))) 336 337 $(warning ) 338 $(warning The following tools are supported:) 339 $(warning ) 340 341 $(foreach tool,$(toolchain-tools-$(2)), \ 342 $(warning $(space) - $(toolchain-tool-name-$(tool)))) 343 344 $(warning ) 345 $(warning The build system will treat this $(toolchain-tool-class-name-$(2)) as $(toolchain-tool-name-$($(1)-$(2)-default-id)).) 346 $(warning ) 347 endef 348 349 # 350 # Locate and identify tools belonging to each toolchain. 351 # 352 # Each tool class in each toolchain receives a variable of the form 353 # `$(toolchain)-$(tool)` giving the associated path to the program. For 354 # example: 355 # 356 # - `aarch64-ld` gives the linker for the AArch64 toolchain, 357 # - `aarch32-oc` gives the object copier for the AArch32 toolchain, and 358 # - `host-cc` gives the C compiler for the host toolchain. 359 # 360 # For each of these variables, if no program path is explicitly provided 361 # by the parent Makefile then the C compiler is queried (if supported) 362 # for its location. 363 # 364 # If the C compiler cannot provide the location (or the tool class *is* 365 # the C compiler), then it is assigned a default value specific for that 366 # toolchain. 367 # 368 369 toolchain-from-parameter = $($($(1)-$(2)-parameter)) 370 371 toolchain-from-cc-arm-clang-cpp = $(1) 372 toolchain-from-cc-arm-clang-as = $(1) 373 toolchain-from-cc-arm-clang-ld = # Fall back to `$(toolchain)-ld-default` 374 toolchain-from-cc-arm-clang-oc = # Fall back to `$(toolchain)-oc-default` 375 toolchain-from-cc-arm-clang-od = # Fall back to `$(toolchain)-od-default` 376 toolchain-from-cc-arm-clang-ar = # Fall back to `$(toolchain)-ar-default` 377 378 toolchain-from-cc-llvm-clang-cpp = $(1) 379 toolchain-from-cc-llvm-clang-as = $(1) 380 toolchain-from-cc-llvm-clang-ld = $(1) 381 toolchain-from-cc-llvm-clang-oc = $(shell $(1) --print-prog-name llvm-objcopy 2>/dev/null) 382 toolchain-from-cc-llvm-clang-od = $(shell $(1) --print-prog-name llvm-objdump 2>/dev/null) 383 toolchain-from-cc-llvm-clang-ar = $(shell $(1) --print-prog-name llvm-ar 2>/dev/null) 384 385 toolchain-from-cc-gnu-gcc-cpp = $(1) 386 toolchain-from-cc-gnu-gcc-as = $(1) 387 toolchain-from-cc-gnu-gcc-ld = $(1) 388 toolchain-from-cc-gnu-gcc-oc = $(shell $(1) --print-prog-name objcopy 2>/dev/null) 389 toolchain-from-cc-gnu-gcc-od = $(shell $(1) --print-prog-name objdump 2>/dev/null) 390 toolchain-from-cc-gnu-gcc-ar = $(shell $(1) --print-prog-name ar 2>/dev/null) 391 392 toolchain-from-cc = $(and $(filter-out cc,$(2)),$($(1)-cc),$\ 393 $(call toolchain-from-cc-$($(1)-cc-id)-$(2),$($(1)-cc))) 394 395 toolchain-from-default = $(firstword $\ 396 $(foreach candidate,$($(1)-$(2)-default),$\ 397 $(if $(call which,$(candidate)),$(candidate))) $\ 398 $($(1)-$(2)-default)) 399 400 # 401 # Compiler configuration for the correct ARCH 402 # 403 404 target-arch-aarch32-arm-clang := arm-arm-none-eabi 405 target-arch-aarch64-arm-clang := aarch64-arm-none-eabi 406 target-arch-aarch32-llvm-clang := arm-arm-none-eabi 407 target-arch-aarch64-llvm-clang := aarch64-arm-none-elf 408 409 target-flag-aarch32-arm-clang := -target $(target-arch-aarch32-arm-clang) 410 target-flag-aarch64-arm-clang := -target $(target-arch-aarch64-arm-clang) 411 target-flag-aarch32-llvm-clang := -target $(target-arch-aarch32-llvm-clang) 412 target-flag-aarch64-llvm-clang := -target $(target-arch-aarch64-llvm-clang) 413 414 # Prefixes a linker flag appropriately for the linker in use. 415 # 416 # Parameters: 417 # - $1: A linker flag 418 # 419 420 toolchain-ld-prefix-gnu-gcc = $(addprefix -Xlinker ,$(1)) 421 toolchain-ld-prefix-gnu-ld = $(1) 422 toolchain-ld-prefix-llvm-clang = $(addprefix -Xlinker ,$(1)) 423 toolchain-ld-prefix-llvm-lld = $(1) 424 toolchain-ld-prefix-arm-clang = $(addprefix -Xlinker ,$(1)) 425 toolchain-ld-prefix-arm-link = $(1) 426 427 # 428 # Discover whether a linker supports any given option (passed in $(2)) 429 # Depending on which linker is in use and how exactly it is used (via a 430 # wrapper or not) the discovery process is different for each one 431 # 432 # Parameters: 433 # - $1: The ARCH prefix of the toolchain (eg TF-A's or the native one) 434 # - $2: The flag to test 435 # Returns the option with the wrapper's prefix (-Xlinker) if necessary 436 # 437 # Optionally works with lists of options, although granularity will be 438 # lost 439 # 440 441 # shorthand for the below helpers, assuming we're building TF-A 442 toolchain-ld-option = $(call toolchain-ld-option-$($(1)-ld-id),$(1),$(2)) 443 toolchain-ld-option-gnu-gcc = $(if $\ 444 $(shell $($(1)-ld) $(call toolchain-ld-prefix-gnu-gcc,$(2)) -Xlinker --help >/dev/null 2>&1 && echo 1),$\ 445 $(call toolchain-ld-prefix-gnu-gcc,$(2))) 446 toolchain-ld-option-gnu-ld = $(shell $($(1)-ld) $(2) --help >/dev/null 2>&1 && $\ 447 echo $(call escape-shell,$(2))) 448 449 toolchain-ld-option-llvm-clang = $(shell $($(1)-ld) $(target-flag-$(1)-llvm-clang) $\ 450 $(call toolchain-ld-prefix-llvm-clang,$(2)) -Xlinker --help >/dev/null 2>&1 && $\ 451 echo $(call escape-shell,$(call toolchain-ld-prefix-llvm-clang,$(2)))) 452 toolchain-ld-option-llvm-lld = $(shell $($(1)-ld) $(2) --help >/dev/null 2>&1 && $\ 453 echo $(call escape-shell,$(2))) 454 455 toolchain-ld-option-arm-clang = $(shell $($(1)-ld) $(target-flag-$(1)-arm-clang) $\ 456 $(call toolchain-ld-prefix-arm-clang,$(2)) -Xlinker --help >/dev/null 2>&1 && $\ 457 echo $(call escape-shell,$(call toolchain-ld-prefix-arm-clang,$(2)))) 458 toolchain-ld-option-arm-link = $(shell $($(1)-ld) $(2) --help >/dev/null 2>&1 && $\ 459 echo $(call escape-shell,$(2))) 460 461 # 462 # Configure a toolchain. 463 # 464 # Parameters: 465 # 466 # - $1: The toolchain to configure. 467 # 468 # This function iterates over all tool classes and configures them for 469 # the provided toolchain. Toolchain tools are initialized lazily and 470 # on-demand based on the first read of the tool path or identifier 471 # variables. 472 # 473 474 define toolchain-configure 475 $$(foreach tool-class,$$(toolchain-tool-classes), \ 476 $$(eval $$(call toolchain-configure-tool,$1,$$(tool-class)))) 477 endef 478 479 # 480 # Configure a specific tool within a toolchain. 481 # 482 # Parameters: 483 # 484 # - $1: The toolchain to configure. 485 # - $2: The tool class to configure. 486 # 487 488 define toolchain-configure-tool 489 $1-$2-configure = $\ 490 $$(eval $$(call toolchain-determine-tool,$1,$2)) 491 492 # 493 # When either of the following variables are read for the first 494 # time, the appropriate tool is determined and *both* variables 495 # are overwritten with their final values. 496 # 497 498 $1-$2 = $$($1-$2-configure)$$($1-$2) 499 $1-$2-id = $$($1-$2-configure)$$($1-$2-id) 500 endef 501 502 # 503 # Determines and identifies a tool. 504 # 505 # Parameters: 506 # 507 # - $1: The toolchain identifier. 508 # - $2: The tool class. 509 # 510 # Tool identification happens by reading the designated tool parameter 511 # to get the user-specified command for the tool (e.g. `CC` or `LD`). If 512 # no tool parameter is defined then try to derive the tool from the C 513 # compiler. 514 # 515 # If all else fails, fall back to the default command defined by the 516 # toolchain makefile. 517 # 518 519 define toolchain-determine-tool 520 # 521 # Try to determine the tool command by: 522 # 523 # 1. Using the user-specified value (if one is provided). 524 # 2. Otherwise, inferring a reasonable default by: 525 # a. Querying the C compiler, if available. 526 # b. Falling back to a hard-coded default, if specified. 527 # c. Giving up, and erroring out if the tool is mandatory. 528 # 529 530 $1-$2-from-parameter = $$(call toolchain-from-parameter,$1,$2) 531 $1-$2-from-cc = $$(call toolchain-from-cc,$1,$2) 532 $1-$2-from-default = $$(call toolchain-from-default,$1,$2) 533 534 ifneq ($$($1-$2-from-parameter),) 535 $1-$2-from := $$($1-$2-from-parameter) 536 $1-$2-origin := via `$$($1-$2-parameter)` parameter 537 else ifneq ($$($1-$2-from-cc),) 538 $1-$2-from := $$($1-$2-from-cc) 539 $1-$2-origin := inferred from C compiler 540 else ifneq ($$($1-$2-from-default),) 541 $1-$2-from := $$($1-$2-from-default) 542 $1-$2-origin := default 543 endif 544 545 # 546 # Sanitize the command for the shell by either escaping the 547 # entire string if it's a program name/path, or by expanding and 548 # escaping each shell word. 549 # 550 551 $1-$2 := $$(call shell-program,$$($1-$2-from)) 552 553 $$(if $$(or $$($1-$2),$$($1-$2-optional)),,$\ 554 $$(error no $$($1-name) $$(toolchain-tool-class-name-$2) configured)) 555 556 $1-$2-id := $$(if $$($1-$2),$$(or $\ 557 $$(call toolchain-guess-tool,$$\ 558 $$(toolchain-tools-$2),$$($1-$2)),$\ 559 $$(call toolchain-warn-unrecognized,$1,$2)$\ 560 $$($1-$2-default-id))) 561 562 $1-$2-program := $$(call toolchain-tool-program,$\ 563 $$($1-$2-id),$$($1-$2)) 564 $1-$2-wrapper := $$(call toolchain-tool-wrapper,$\ 565 $$($1-$2-id),$$($1-$2)) 566 endef 567 568 $(foreach toolchain,$(toolchains), \ 569 $(eval $(call toolchain-configure,$(toolchain)))) 570endif 571