1 # Copyright (C) 2009-2010 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 # 15 16 # Initialization of the NDK build system. This file is included by 17 # several build scripts. 18 # 19 20 # Disable GNU Make implicit rules 21 22 # this turns off the suffix rules built into make 23 .SUFFIXES: 24 25 # this turns off the RCS / SCCS implicit rules of GNU Make 26 % : RCS/%,v 27 % : RCS/% 28 % : %,v 29 % : s.% 30 % : SCCS/s.% 31 32 # If a rule fails, delete $@. 33 .DELETE_ON_ERROR: 34 35 36 # Define NDK_LOG=1 in your environment to display log traces when 37 # using the build scripts. See also the definition of ndk_log below. 38 # 39 NDK_LOG := $(strip $(NDK_LOG)) 40 ifeq ($(NDK_LOG),true) 41 override NDK_LOG := 1 42 endif 43 44 # Define NDK_HOST_32BIT=1 in your environment to always use toolchain in 32-bit 45 # even if 64-bit is present. Note that toolchains in 64-bit still produce 46 # 32-bit binaries for Android 47 # 48 NDK_HOST_32BIT := $(strip $(NDK_HOST_32BIT)) 49 ifeq ($(NDK_HOST_32BIT),true) 50 override NDK_HOST_32BIT := 1 51 endif 52 53 # Check that we have at least GNU Make 3.81 54 # We do this by detecting whether 'lastword' is supported 55 # 56 MAKE_TEST := $(lastword a b c d e f) 57 ifneq ($(MAKE_TEST),f) 58 $(error Android NDK: GNU Make version $(MAKE_VERSION) is too low (should be >= 3.81)) 59 endif 60 ifeq ($(NDK_LOG),1) 61 $(info Android NDK: GNU Make version $(MAKE_VERSION) detected) 62 endif 63 64 # NDK_ROOT *must* be defined and point to the root of the NDK installation 65 NDK_ROOT := $(strip $(NDK_ROOT)) 66 ifndef NDK_ROOT 67 $(error ERROR while including init.mk: NDK_ROOT must be defined !) 68 endif 69 ifneq ($(words $(NDK_ROOT)),1) 70 $(info,The Android NDK installation path contains spaces: '$(NDK_ROOT)') 71 $(error,Please fix the problem by reinstalling to a different location.) 72 endif 73 74 # ==================================================================== 75 # 76 # Define a few useful variables and functions. 77 # More stuff will follow in definitions.mk. 78 # 79 # ==================================================================== 80 81 # Used to output warnings and error from the library, it's possible to 82 # disable any warnings or errors by overriding these definitions 83 # manually or by setting NDK_NO_WARNINGS or NDK_NO_ERRORS 84 85 __ndk_name := Android NDK 86 __ndk_info = $(info $(__ndk_name): $1 $2 $3 $4 $5) 87 __ndk_warning = $(warning $(__ndk_name): $1 $2 $3 $4 $5) 88 __ndk_error = $(error $(__ndk_name): $1 $2 $3 $4 $5) 89 90 ifdef NDK_NO_WARNINGS 91 __ndk_warning := 92 endif 93 ifdef NDK_NO_ERRORS 94 __ndk_error := 95 endif 96 97 # ----------------------------------------------------------------------------- 98 # Function : ndk_log 99 # Arguments: 1: text to print when NDK_LOG is defined to 1 100 # Returns : None 101 # Usage : $(call ndk_log,<some text>) 102 # ----------------------------------------------------------------------------- 103 ifeq ($(NDK_LOG),1) 104 ndk_log = $(info $(__ndk_name): $1) 105 else 106 ndk_log := 107 endif 108 109 # ----------------------------------------------------------------------------- 110 # Function : host-prebuilt-tag 111 # Arguments: 1: parent path of "prebuilt" 112 # Returns : path $1/prebuilt/(HOST_TAG64) exists and NDK_HOST_32BIT isn't defined to 1, 113 # or $1/prebuilt/(HOST_TAG) 114 # Usage : $(call host-prebuilt-tag, <path>) 115 # Rationale: This function is used to proble available 64-bit toolchain or 116 # return 32-bit one as default. Note that HOST_TAG64==HOST_TAG for 117 # 32-bit system (or 32-bit userland in 64-bit system) 118 # ----------------------------------------------------------------------------- 119 ifeq ($(NDK_HOST_32BIT),1) 120 host-prebuilt-tag = $1/prebuilt/$(HOST_TAG) 121 else 122 host-prebuilt-tag = \ 123 $(if $(strip $(wildcard $1/prebuilt/$(HOST_TAG64))),$1/prebuilt/$(HOST_TAG64),$1/prebuilt/$(HOST_TAG)) 124 endif 125 126 # ==================================================================== 127 # 128 # Host system auto-detection. 129 # 130 # ==================================================================== 131 132 # 133 # Determine host system and architecture from the environment 134 # 135 HOST_OS := $(strip $(HOST_OS)) 136 ifndef HOST_OS 137 # On all modern variants of Windows (including Cygwin and Wine) 138 # the OS environment variable is defined to 'Windows_NT' 139 # 140 # The value of PROCESSOR_ARCHITECTURE will be x86 or AMD64 141 # 142 ifeq ($(OS),Windows_NT) 143 HOST_OS := windows 144 else 145 # For other systems, use the `uname` output 146 UNAME := $(shell uname -s) 147 ifneq (,$(findstring Linux,$(UNAME))) 148 HOST_OS := linux 149 endif 150 ifneq (,$(findstring Darwin,$(UNAME))) 151 HOST_OS := darwin 152 endif 153 # We should not be there, but just in case ! 154 ifneq (,$(findstring CYGWIN,$(UNAME))) 155 HOST_OS := windows 156 endif 157 ifeq ($(HOST_OS),) 158 $(call __ndk_info,Unable to determine HOST_OS from uname -s: $(UNAME)) 159 $(call __ndk_info,Please define HOST_OS in your environment.) 160 $(call __ndk_error,Aborting.) 161 endif 162 endif 163 $(call ndk_log,Host OS was auto-detected: $(HOST_OS)) 164 else 165 $(call ndk_log,Host OS from environment: $(HOST_OS)) 166 endif 167 168 # For all systems, we will have HOST_OS_BASE defined as 169 # $(HOST_OS), except on Cygwin where we will have: 170 # 171 # HOST_OS == cygwin 172 # HOST_OS_BASE == windows 173 # 174 # Trying to detect that we're running from Cygwin is tricky 175 # because we can't use $(OSTYPE): It's a Bash shell variable 176 # that is not exported to sub-processes, and isn't defined by 177 # other shells (for those with really weird setups). 178 # 179 # Instead, we assume that a program named /bin/uname.exe 180 # that can be invoked and returns a valid value corresponds 181 # to a Cygwin installation. 182 # 183 HOST_OS_BASE := $(HOST_OS) 184 185 ifeq ($(HOST_OS),windows) 186 ifneq (,$(strip $(wildcard /bin/uname.exe))) 187 $(call ndk_log,Found /bin/uname.exe on Windows host, checking for Cygwin) 188 # NOTE: The 2>NUL here is for the case where we're running inside the 189 # native Windows shell. On cygwin, this will create an empty NUL file 190 # that we're going to remove later (see below). 191 UNAME := $(shell /bin/uname.exe -s 2>NUL) 192 $(call ndk_log,uname -s returned: $(UNAME)) 193 ifneq (,$(filter CYGWIN%,$(UNAME))) 194 $(call ndk_log,Cygwin detected: $(shell uname -a)) 195 HOST_OS := cygwin 196 DUMMY := $(shell rm -f NUL) # Cleaning up 197 else 198 ifneq (,$(filter MINGW32%,$(UNAME))) 199 $(call ndk_log,MSys detected: $(shell uname -a)) 200 HOST_OS := cygwin 201 else 202 $(call ndk_log,Cygwin *not* detected!) 203 endif 204 endif 205 endif 206 endif 207 208 ifneq ($(HOST_OS),$(HOST_OS_BASE)) 209 $(call ndk_log, Host operating system detected: $(HOST_OS), base OS: $(HOST_OS_BASE)) 210 else 211 $(call ndk_log, Host operating system detected: $(HOST_OS)) 212 endif 213 214 # Always use /usr/bin/file on Darwin to avoid relying on broken Ports 215 # version. See http://b.android.com/53769 . 216 HOST_FILE_PROGRAM := file 217 ifeq ($(HOST_OS),darwin) 218 HOST_FILE_PROGRAM := /usr/bin/file 219 endif 220 221 HOST_ARCH := $(strip $(HOST_ARCH)) 222 HOST_ARCH64 := 223 ifndef HOST_ARCH 224 ifeq ($(HOST_OS_BASE),windows) 225 HOST_ARCH := $(PROCESSOR_ARCHITECTURE) 226 ifeq ($(HOST_ARCH),AMD64) 227 HOST_ARCH := x86 228 endif 229 # Windows is 64-bit if either ProgramW6432 or ProgramFiles(x86) is set 230 ifneq ("/",$(shell echo "%ProgramW6432%/%ProgramFiles(x86)%")) 231 HOST_ARCH64 := x86_64 232 endif 233 else # HOST_OS_BASE != windows 234 UNAME := $(shell uname -m) 235 ifneq (,$(findstring 86,$(UNAME))) 236 HOST_ARCH := x86 237 ifneq (,$(shell $(HOST_FILE_PROGRAM) -L $(SHELL) | grep 'x86[_-]64')) 238 HOST_ARCH64 := x86_64 239 endif 240 endif 241 # We should probably should not care at all 242 ifneq (,$(findstring Power,$(UNAME))) 243 HOST_ARCH := ppc 244 endif 245 ifeq ($(HOST_ARCH),) 246 $(call __ndk_info,Unsupported host architecture: $(UNAME)) 247 $(call __ndk_error,Aborting) 248 endif 249 endif # HOST_OS_BASE != windows 250 $(call ndk_log,Host CPU was auto-detected: $(HOST_ARCH)) 251 else 252 $(call ndk_log,Host CPU from environment: $(HOST_ARCH)) 253 endif 254 255 ifeq (,$(HOST_ARCH64)) 256 HOST_ARCH64 := $(HOST_ARCH) 257 endif 258 259 HOST_TAG := $(HOST_OS_BASE)-$(HOST_ARCH) 260 HOST_TAG64 := $(HOST_OS_BASE)-$(HOST_ARCH64) 261 262 # The directory separator used on this host 263 HOST_DIRSEP := : 264 ifeq ($(HOST_OS),windows) 265 HOST_DIRSEP := ; 266 endif 267 268 # The host executable extension 269 HOST_EXEEXT := 270 ifeq ($(HOST_OS),windows) 271 HOST_EXEEXT := .exe 272 endif 273 274 # If we are on Windows, we need to check that we are not running 275 # Cygwin 1.5, which is deprecated and won't run our toolchain 276 # binaries properly. 277 # 278 ifeq ($(HOST_TAG),windows-x86) 279 ifeq ($(HOST_OS),cygwin) 280 # On cygwin, 'uname -r' returns something like 1.5.23(0.225/5/3) 281 # We recognize 1.5. as the prefix to look for then. 282 CYGWIN_VERSION := $(shell uname -r) 283 ifneq ($(filter XX1.5.%,XX$(CYGWIN_VERSION)),) 284 $(call __ndk_info,You seem to be running Cygwin 1.5, which is not supported.) 285 $(call __ndk_info,Please upgrade to Cygwin 1.7 or higher.) 286 $(call __ndk_error,Aborting.) 287 endif 288 endif 289 # special-case the host-tag 290 HOST_TAG := windows 291 endif 292 293 $(call ndk_log,HOST_TAG set to $(HOST_TAG)) 294 295 # Check for NDK-specific versions of our host tools 296 HOST_PREBUILT_ROOT := $(call host-prebuilt-tag, $(NDK_ROOT)) 297 HOST_PREBUILT := $(strip $(wildcard $(HOST_PREBUILT_ROOT)/bin)) 298 HOST_AWK := $(strip $(NDK_HOST_AWK)) 299 HOST_SED := $(strip $(NDK_HOST_SED)) 300 HOST_MAKE := $(strip $(NDK_HOST_MAKE)) 301 HOST_PYTHON := $(strip $(NDK_HOST_PYTHON)) 302 ifdef HOST_PREBUILT 303 $(call ndk_log,Host tools prebuilt directory: $(HOST_PREBUILT)) 304 # The windows prebuilt binaries are for ndk-build.cmd 305 # On cygwin, we must use the Cygwin version of these tools instead. 306 ifneq ($(HOST_OS),cygwin) 307 ifndef HOST_AWK 308 HOST_AWK := $(wildcard $(HOST_PREBUILT)/awk$(HOST_EXEEXT)) 309 endif 310 ifndef HOST_SED 311 HOST_SED := $(wildcard $(HOST_PREBUILT)/sed$(HOST_EXEEXT)) 312 endif 313 ifndef HOST_MAKE 314 HOST_MAKE := $(wildcard $(HOST_PREBUILT)/make$(HOST_EXEEXT)) 315 endif 316 ifndef HOST_PYTHON 317 HOST_PYTHON := $(wildcard $(HOST_PREBUILT)/python$(HOST_EXEEXT)) 318 endif 319 endif 320 else 321 $(call ndk_log,Host tools prebuilt directory not found, using system tools) 322 endif 323 324 HOST_ECHO := $(strip $(NDK_HOST_ECHO)) 325 ifdef HOST_PREBUILT 326 ifndef HOST_ECHO 327 # Special case, on Cygwin, always use the host echo, not our prebuilt one 328 # which adds \r\n at the end of lines. 329 ifneq ($(HOST_OS),cygwin) 330 HOST_ECHO := $(strip $(wildcard $(HOST_PREBUILT)/echo$(HOST_EXEEXT))) 331 endif 332 endif 333 endif 334 ifndef HOST_ECHO 335 HOST_ECHO := echo 336 endif 337 $(call ndk_log,Host 'echo' tool: $(HOST_ECHO)) 338 339 # Define HOST_ECHO_N to perform the equivalent of 'echo -n' on all platforms. 340 ifeq ($(HOST_OS),windows) 341 # Our custom toolbox echo binary supports -n. 342 HOST_ECHO_N := $(HOST_ECHO) -n 343 else 344 # On Posix, just use bare printf. 345 HOST_ECHO_N := printf %s 346 endif 347 $(call ndk_log,Host 'echo -n' tool: $(HOST_ECHO_N)) 348 349 HOST_CMP := $(strip $(NDK_HOST_CMP)) 350 ifdef HOST_PREBUILT 351 ifndef HOST_CMP 352 HOST_CMP := $(strip $(wildcard $(HOST_PREBUILT)/cmp$(HOST_EXEEXT))) 353 endif 354 endif 355 ifndef HOST_CMP 356 HOST_CMP := cmp 357 endif 358 $(call ndk_log,Host 'cmp' tool: $(HOST_CMP)) 359 360 # 361 # Verify that the 'awk' tool has the features we need. 362 # Both Nawk and Gawk do. 363 # 364 HOST_AWK := $(strip $(HOST_AWK)) 365 ifndef HOST_AWK 366 HOST_AWK := awk 367 endif 368 $(call ndk_log,Host 'awk' tool: $(HOST_AWK)) 369 370 # Location of all awk scripts we use 371 BUILD_AWK := $(NDK_ROOT)/build/awk 372 373 AWK_TEST := $(shell $(HOST_AWK) -f $(BUILD_AWK)/check-awk.awk) 374 $(call ndk_log,Host 'awk' test returned: $(AWK_TEST)) 375 ifneq ($(AWK_TEST),Pass) 376 $(call __ndk_info,Host 'awk' tool is outdated. Please define NDK_HOST_AWK to point to Gawk or Nawk !) 377 $(call __ndk_error,Aborting.) 378 endif 379 380 # 381 # On Cygwin/MSys, define the 'cygwin-to-host-path' function here depending on the 382 # environment. The rules are the following: 383 # 384 # 1/ If NDK_USE_CYGPATH=1 and cygpath does exist in your path, cygwin-to-host-path 385 # calls "cygpath -m" for each host path. Since invoking 'cygpath -m' from GNU 386 # Make for each source file is _very_ slow, this is only a backup plan in 387 # case our automatic substitution function (described below) doesn't work. 388 # 389 # 2/ Generate a Make function that performs the mapping from cygwin/msys to host 390 # paths through simple substitutions. It's really a series of nested patsubst 391 # calls, that loo like: 392 # 393 # cygwin-to-host-path = $(patsubst /cygdrive/c/%,c:/%,\ 394 # $(patsusbt /cygdrive/d/%,d:/%, \ 395 # $1) 396 # or in MSys: 397 # cygwin-to-host-path = $(patsubst /c/%,c:/%,\ 398 # $(patsusbt /d/%,d:/%, \ 399 # $1) 400 # 401 # except that the actual definition is built from the list of mounted 402 # drives as reported by "mount" and deals with drive letter cases (i.e. 403 # '/cygdrive/c' and '/cygdrive/C') 404 # 405 ifeq ($(HOST_OS),cygwin) 406 CYGPATH := $(strip $(HOST_CYGPATH)) 407 ifndef CYGPATH 408 $(call ndk_log, Probing for 'cygpath' program) 409 CYGPATH := $(strip $(shell which cygpath 2>/dev/null)) 410 ifndef CYGPATH 411 $(call ndk_log, 'cygpath' was *not* found in your path) 412 else 413 $(call ndk_log, 'cygpath' found as: $(CYGPATH)) 414 endif 415 endif 416 417 ifeq ($(NDK_USE_CYGPATH),1) 418 ifndef CYGPATH 419 $(call __ndk_info,No cygpath) 420 $(call __ndk_error,Aborting) 421 endif 422 $(call ndk_log, Forced usage of 'cygpath -m' through NDK_USE_CYGPATH=1) 423 cygwin-to-host-path = $(strip $(shell $(CYGPATH) -m $1)) 424 else 425 # Call an awk script to generate a Makefile fragment used to define a function 426 WINDOWS_HOST_PATH_FRAGMENT := $(shell mount | tr '\\' '/' | $(HOST_AWK) -f $(BUILD_AWK)/gen-windows-host-path.awk) 427 ifeq ($(NDK_LOG),1) 428 $(info Using cygwin substitution rules:) 429 $(eval $(shell mount | tr '\\' '/' | $(HOST_AWK) -f $(BUILD_AWK)/gen-windows-host-path.awk -vVERBOSE=1)) 430 endif 431 $(eval cygwin-to-host-path = $(WINDOWS_HOST_PATH_FRAGMENT)) 432 endif 433 endif # HOST_OS == cygwin 434 435 # The location of the build system files 436 BUILD_SYSTEM := $(NDK_ROOT)/build/core 437 438 # Include common definitions 439 include $(BUILD_SYSTEM)/definitions.mk 440 441 # ==================================================================== 442 # 443 # Read all platform-specific configuration files. 444 # 445 # Each platform must be located in build/platforms/android-<apilevel> 446 # where <apilevel> corresponds to an API level number, with: 447 # 3 -> Android 1.5 448 # 4 -> next platform release 449 # 450 # ==================================================================== 451 452 # The platform files were moved in the Android source tree from 453 # $TOP/ndk/build/platforms to $TOP/development/ndk/platforms. However, 454 # the official NDK release packages still place them under the old 455 # location for now, so deal with this here 456 # 457 NDK_PLATFORMS_ROOT := $(strip $(NDK_PLATFORMS_ROOT)) 458 ifndef NDK_PLATFORMS_ROOT 459 NDK_PLATFORMS_ROOT := $(strip $(wildcard $(NDK_ROOT)/platforms)) 460 ifndef NDK_PLATFORMS_ROOT 461 NDK_PLATFORMS_ROOT := $(strip $(wildcard $(NDK_ROOT)/build/platforms)) 462 endif 463 464 ifndef NDK_PLATFORMS_ROOT 465 $(call __ndk_info,Could not find platform files (headers and libraries)) 466 $(if $(strip $(wildcard $(NDK_ROOT)/RELEASE.TXT)),\ 467 $(call __ndk_info,Please define NDK_PLATFORMS_ROOT to point to a valid directory.)\ 468 ,\ 469 $(call __ndk_info,Please run build/tools/build-platforms.sh to build the corresponding directory.)\ 470 ) 471 $(call __ndk_error,Aborting) 472 endif 473 474 $(call ndk_log,Found platform root directory: $(NDK_PLATFORMS_ROOT)) 475 endif 476 ifeq ($(strip $(wildcard $(NDK_PLATFORMS_ROOT)/android-*)),) 477 $(call __ndk_info,Your NDK_PLATFORMS_ROOT points to an invalid directory) 478 $(call __ndk_info,Current value: $(NDK_PLATFORMS_ROOT)) 479 $(call __ndk_error,Aborting) 480 endif 481 482 NDK_ALL_PLATFORMS := $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*))) 483 $(call ndk_log,Found supported platforms: $(NDK_ALL_PLATFORMS)) 484 485 $(foreach _platform,$(NDK_ALL_PLATFORMS),\ 486 $(eval include $(BUILD_SYSTEM)/add-platform.mk)\ 487 ) 488 489 # we're going to find the maximum platform number of the form android-<number> 490 # ignore others, which could correspond to special and experimental cases 491 NDK_ALL_PLATFORM_LEVELS := $(filter android-%,$(NDK_ALL_PLATFORMS)) 492 NDK_ALL_PLATFORM_LEVELS := $(patsubst android-%,%,$(NDK_ALL_PLATFORM_LEVELS)) 493 $(call ndk_log,Found stable platform levels: $(NDK_ALL_PLATFORM_LEVELS)) 494 495 NDK_MAX_PLATFORM_LEVEL := 3 496 $(foreach level,$(NDK_ALL_PLATFORM_LEVELS),\ 497 $(eval NDK_MAX_PLATFORM_LEVEL := $$(call max,$$(NDK_MAX_PLATFORM_LEVEL),$$(level)))\ 498 ) 499 $(call ndk_log,Found max platform level: $(NDK_MAX_PLATFORM_LEVEL)) 500 501 # ==================================================================== 502 # 503 # Read all toolchain-specific configuration files. 504 # 505 # Each toolchain must have a corresponding config.mk file located 506 # in build/toolchains/<name>/ that will be included here. 507 # 508 # Each one of these files should define the following variables: 509 # TOOLCHAIN_NAME toolchain name (e.g. arm-linux-androideabi-4.6) 510 # TOOLCHAIN_ABIS list of target ABIs supported by the toolchain. 511 # 512 # Then, it should include $(ADD_TOOLCHAIN) which will perform 513 # book-keeping for the build system. 514 # 515 # ==================================================================== 516 517 # the build script to include in each toolchain config.mk 518 ADD_TOOLCHAIN := $(BUILD_SYSTEM)/add-toolchain.mk 519 520 # the list of known values 521 NDK_KNOWN_ABIS := armeabi-v7a armeabi x86 mips 522 NDK_KNOWN_ARCHS := arm x86 mips 523 _archs := $(sort $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*/arch-*)))) 524 NDK_FOUND_ARCHS := $(_archs:arch-%=%) 525 526 # the list of all toolchains in this NDK 527 NDK_ALL_TOOLCHAINS := 528 NDK_ALL_ABIS := 529 NDK_ALL_ARCHS := 530 531 TOOLCHAIN_CONFIGS := $(wildcard $(NDK_ROOT)/toolchains/*/config.mk) 532 $(foreach _config_mk,$(TOOLCHAIN_CONFIGS),\ 533 $(eval include $(BUILD_SYSTEM)/add-toolchain.mk)\ 534 ) 535 536 NDK_ALL_TOOLCHAINS := $(sort $(NDK_ALL_TOOLCHAINS)) 537 NDK_ALL_ABIS := $(sort $(NDK_ALL_ABIS)) 538 NDK_ALL_ARCHS := $(sort $(NDK_ALL_ARCHS)) 539 540 # Check that each ABI has a single architecture definition 541 $(foreach _abi,$(strip $(NDK_ALL_ABIS)),\ 542 $(if $(filter-out 1,$(words $(NDK_ABI.$(_abi).arch))),\ 543 $(call __ndk_info,INTERNAL ERROR: The $(_abi) ABI should have exactly one architecture definitions. Found: '$(NDK_ABI.$(_abi).arch)')\ 544 $(call __ndk_error,Aborting...)\ 545 )\ 546 ) 547 548 # Allow the user to define NDK_TOOLCHAIN to a custom toolchain name. 549 # This is normally used when the NDK release comes with several toolchains 550 # for the same architecture (generally for backwards-compatibility). 551 # 552 NDK_TOOLCHAIN := $(strip $(NDK_TOOLCHAIN)) 553 ifdef NDK_TOOLCHAIN 554 # check that the toolchain name is supported 555 $(if $(filter-out $(NDK_ALL_TOOLCHAINS),$(NDK_TOOLCHAIN)),\ 556 $(call __ndk_info,NDK_TOOLCHAIN is defined to the unsupported value $(NDK_TOOLCHAIN)) \ 557 $(call __ndk_info,Please use one of the following values: $(NDK_ALL_TOOLCHAINS))\ 558 $(call __ndk_error,Aborting)\ 559 ,) 560 $(call ndk_log, Using specific toolchain $(NDK_TOOLCHAIN)) 561 endif 562 563 # Allow the user to define NDK_TOOLCHAIN_VERSION to override the toolchain 564 # version number. Unlike NDK_TOOLCHAIN, this only changes the suffix of 565 # the toolchain path we're using. 566 # 567 # For example, if GCC 4.6 is the default, defining NDK_TOOLCHAIN_VERSION=4.7 568 # will ensure that ndk-build uses the following toolchains, depending on 569 # the target architecture: 570 # 571 # arm -> arm-linux-androideabi-4.7 572 # x86 -> x86-android-linux-4.7 573 # mips -> mipsel-linux-android-4.7 574 # 575 # This is used in setup-toolchain.mk 576 # 577 NDK_TOOLCHAIN_VERSION := $(strip $(NDK_TOOLCHAIN_VERSION)) 578 579 $(call ndk_log, This NDK supports the following target architectures and ABIS:) 580 $(foreach arch,$(NDK_ALL_ARCHS),\ 581 $(call ndk_log, $(space)$(space)$(arch): $(NDK_ARCH.$(arch).abis))\ 582 ) 583 $(call ndk_log, This NDK supports the following toolchains and target ABIs:) 584 $(foreach tc,$(NDK_ALL_TOOLCHAINS),\ 585 $(call ndk_log, $(space)$(space)$(tc): $(NDK_TOOLCHAIN.$(tc).abis))\ 586 ) 587 588
