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# 39NDK_LOG := $(strip $(NDK_LOG)) 40ifeq ($(NDK_LOG),true) 41 override NDK_LOG := 1 42endif 43 44# Check that we have at least GNU Make 3.81 45# We do this by detecting whether 'lastword' is supported 46# 47MAKE_TEST := $(lastword a b c d e f) 48ifneq ($(MAKE_TEST),f) 49 $(error Android NDK: GNU Make version $(MAKE_VERSION) is too low (should be >= 3.81)) 50endif 51ifeq ($(NDK_LOG),1) 52 $(info Android NDK: GNU Make version $(MAKE_VERSION) detected) 53endif 54 55# NDK_ROOT *must* be defined and point to the root of the NDK installation 56NDK_ROOT := $(strip $(NDK_ROOT)) 57ifndef NDK_ROOT 58 $(error ERROR while including init.mk: NDK_ROOT must be defined !) 59endif 60ifneq ($(words $(NDK_ROOT)),1) 61 $(info,The Android NDK installation path contains spaces: '$(NDK_ROOT)') 62 $(error,Please fix the problem by reinstalling to a different location.) 63endif 64 65# ==================================================================== 66# 67# Define a few useful variables and functions. 68# More stuff will follow in definitions.mk. 69# 70# ==================================================================== 71 72# Used to output warnings and error from the library, it's possible to 73# disable any warnings or errors by overriding these definitions 74# manually or by setting NDK_NO_WARNINGS or NDK_NO_ERRORS 75 76__ndk_name := Android NDK 77__ndk_info = $(info $(__ndk_name): $1 $2 $3 $4 $5) 78__ndk_warning = $(warning $(__ndk_name): $1 $2 $3 $4 $5) 79__ndk_error = $(error $(__ndk_name): $1 $2 $3 $4 $5) 80 81ifdef NDK_NO_INFO 82__ndk_info := 83endif 84ifdef NDK_NO_WARNINGS 85__ndk_warning := 86endif 87ifdef NDK_NO_ERRORS 88__ndk_error := 89endif 90 91# ----------------------------------------------------------------------------- 92# Function : ndk_log 93# Arguments: 1: text to print when NDK_LOG is defined to 1 94# Returns : None 95# Usage : $(call ndk_log,<some text>) 96# ----------------------------------------------------------------------------- 97ifeq ($(NDK_LOG),1) 98ndk_log = $(info $(__ndk_name): $1) 99else 100ndk_log := 101endif 102 103# ----------------------------------------------------------------------------- 104# Function : host-toolchain-path 105# Arguments: 1: NDK root 106# 2: Toolchain name 107# Returns : The parent path of all toolchains for this host. Note that 108# HOST_TAG64 == HOST_TAG for 32-bit systems. 109# ----------------------------------------------------------------------------- 110ifeq ($(NDK_NEW_TOOLCHAINS_LAYOUT),true) 111 host-toolchain-path = $1/$(HOST_TAG64)/$2 112else 113 host-toolchain-path = $1/$2/prebuilt/$(HOST_TAG64) 114endif 115 116# ----------------------------------------------------------------------------- 117# Function : get-toolchain-root 118# Arguments: 1: Toolchain name 119# Returns : Path to the given prebuilt toolchain. 120# ----------------------------------------------------------------------------- 121get-toolchain-root = $(call host-toolchain-path,$(NDK_TOOLCHAINS_ROOT),$1) 122 123# ----------------------------------------------------------------------------- 124# Function : get-binutils-root 125# Arguments: 1: NDK root 126# 2: Toolchain name (no version number) 127# Returns : Path to the given prebuilt binutils. 128# ----------------------------------------------------------------------------- 129get-binutils-root = $1/binutils/$2 130 131# ----------------------------------------------------------------------------- 132# Function : get-gcclibs-path 133# Arguments: 1: NDK root 134# 2: Toolchain name (no version number) 135# Returns : Path to the given prebuilt gcclibs. 136# ----------------------------------------------------------------------------- 137get-gcclibs-path = $1/gcclibs/$2 138 139# ==================================================================== 140# 141# Host system auto-detection. 142# 143# ==================================================================== 144 145# 146# Determine host system and architecture from the environment 147# 148HOST_OS := $(strip $(HOST_OS)) 149ifndef HOST_OS 150 # On all modern variants of Windows (including Cygwin and Wine) 151 # the OS environment variable is defined to 'Windows_NT' 152 # 153 # The value of PROCESSOR_ARCHITECTURE will be x86 or AMD64 154 # 155 ifeq ($(OS),Windows_NT) 156 HOST_OS := windows 157 else 158 # For other systems, use the `uname` output 159 UNAME := $(shell uname -s) 160 ifneq (,$(findstring Linux,$(UNAME))) 161 HOST_OS := linux 162 endif 163 ifneq (,$(findstring Darwin,$(UNAME))) 164 HOST_OS := darwin 165 endif 166 # We should not be there, but just in case ! 167 ifneq (,$(findstring CYGWIN,$(UNAME))) 168 HOST_OS := windows 169 endif 170 ifeq ($(HOST_OS),) 171 $(call __ndk_info,Unable to determine HOST_OS from uname -s: $(UNAME)) 172 $(call __ndk_info,Please define HOST_OS in your environment.) 173 $(call __ndk_error,Aborting.) 174 endif 175 endif 176 $(call ndk_log,Host OS was auto-detected: $(HOST_OS)) 177else 178 $(call ndk_log,Host OS from environment: $(HOST_OS)) 179endif 180 181# For all systems, we will have HOST_OS_BASE defined as 182# $(HOST_OS), except on Cygwin where we will have: 183# 184# HOST_OS == cygwin 185# HOST_OS_BASE == windows 186# 187# Trying to detect that we're running from Cygwin is tricky 188# because we can't use $(OSTYPE): It's a Bash shell variable 189# that is not exported to sub-processes, and isn't defined by 190# other shells (for those with really weird setups). 191# 192# Instead, we assume that a program named /bin/uname.exe 193# that can be invoked and returns a valid value corresponds 194# to a Cygwin installation. 195# 196HOST_OS_BASE := $(HOST_OS) 197 198ifeq ($(HOST_OS),windows) 199 ifneq (,$(strip $(wildcard /bin/uname.exe))) 200 $(call ndk_log,Found /bin/uname.exe on Windows host, checking for Cygwin) 201 # NOTE: The 2>NUL here is for the case where we're running inside the 202 # native Windows shell. On cygwin, this will create an empty NUL file 203 # that we're going to remove later (see below). 204 UNAME := $(shell /bin/uname.exe -s 2>NUL) 205 $(call ndk_log,uname -s returned: $(UNAME)) 206 ifneq (,$(filter CYGWIN%,$(UNAME))) 207 $(call ndk_log,Cygwin detected: $(shell uname -a)) 208 HOST_OS := cygwin 209 DUMMY := $(shell rm -f NUL) # Cleaning up 210 else 211 ifneq (,$(filter MINGW32%,$(UNAME))) 212 $(call ndk_log,MSys detected: $(shell uname -a)) 213 HOST_OS := cygwin 214 else 215 $(call ndk_log,Cygwin *not* detected!) 216 endif 217 endif 218 endif 219endif 220 221ifneq ($(HOST_OS),$(HOST_OS_BASE)) 222 $(call ndk_log, Host operating system detected: $(HOST_OS), base OS: $(HOST_OS_BASE)) 223else 224 $(call ndk_log, Host operating system detected: $(HOST_OS)) 225endif 226 227# Always use /usr/bin/file on Darwin to avoid relying on broken Ports 228# version. See http://b.android.com/53769 . 229HOST_FILE_PROGRAM := file 230ifeq ($(HOST_OS),darwin) 231HOST_FILE_PROGRAM := /usr/bin/file 232endif 233 234HOST_ARCH := $(strip $(HOST_ARCH)) 235HOST_ARCH64 := 236ifndef HOST_ARCH 237 ifeq ($(HOST_OS_BASE),windows) 238 HOST_ARCH := $(PROCESSOR_ARCHITECTURE) 239 ifeq ($(HOST_ARCH),AMD64) 240 HOST_ARCH := x86 241 endif 242 # Windows is 64-bit if either ProgramW6432 or ProgramFiles(x86) is set 243 ifneq ("/",$(shell echo "%ProgramW6432%/%ProgramFiles(x86)%")) 244 HOST_ARCH64 := x86_64 245 endif 246 else # HOST_OS_BASE != windows 247 UNAME := $(shell uname -m) 248 ifneq (,$(findstring 86,$(UNAME))) 249 HOST_ARCH := x86 250 ifneq (,$(shell $(HOST_FILE_PROGRAM) -L $(SHELL) | grep 'x86[_-]64')) 251 HOST_ARCH64 := x86_64 252 endif 253 endif 254 # We should probably should not care at all 255 ifneq (,$(findstring Power,$(UNAME))) 256 HOST_ARCH := ppc 257 endif 258 ifeq ($(HOST_ARCH),) 259 $(call __ndk_info,Unsupported host architecture: $(UNAME)) 260 $(call __ndk_error,Aborting) 261 endif 262 endif # HOST_OS_BASE != windows 263 $(call ndk_log,Host CPU was auto-detected: $(HOST_ARCH)) 264else 265 $(call ndk_log,Host CPU from environment: $(HOST_ARCH)) 266endif 267 268ifeq (,$(HOST_ARCH64)) 269 HOST_ARCH64 := $(HOST_ARCH) 270endif 271 272HOST_TAG := $(HOST_OS_BASE)-$(HOST_ARCH) 273HOST_TAG64 := $(HOST_OS_BASE)-$(HOST_ARCH64) 274 275# The directory separator used on this host 276HOST_DIRSEP := : 277ifeq ($(HOST_OS),windows) 278 HOST_DIRSEP := ; 279endif 280 281# The host executable extension 282HOST_EXEEXT := 283ifeq ($(HOST_OS),windows) 284 HOST_EXEEXT := .exe 285endif 286 287# If we are on Windows, we need to check that we are not running 288# Cygwin 1.5, which is deprecated and won't run our toolchain 289# binaries properly. 290# 291ifeq ($(HOST_TAG),windows-x86) 292 ifeq ($(HOST_OS),cygwin) 293 # On cygwin, 'uname -r' returns something like 1.5.23(0.225/5/3) 294 # We recognize 1.5. as the prefix to look for then. 295 CYGWIN_VERSION := $(shell uname -r) 296 ifneq ($(filter XX1.5.%,XX$(CYGWIN_VERSION)),) 297 $(call __ndk_info,You seem to be running Cygwin 1.5, which is not supported.) 298 $(call __ndk_info,Please upgrade to Cygwin 1.7 or higher.) 299 $(call __ndk_error,Aborting.) 300 endif 301 endif 302 # special-case the host-tag 303 HOST_TAG := windows 304endif 305 306$(call ndk_log,HOST_TAG set to $(HOST_TAG)) 307 308# Check for NDK-specific versions of our host tools 309HOST_TOOLS_ROOT := $(NDK_ROOT)/prebuilt/$(HOST_TAG64) 310HOST_PREBUILT := $(strip $(wildcard $(HOST_TOOLS_ROOT)/bin)) 311HOST_AWK := $(strip $(NDK_HOST_AWK)) 312HOST_MAKE := $(strip $(NDK_HOST_MAKE)) 313HOST_PYTHON := $(strip $(NDK_HOST_PYTHON)) 314ifdef HOST_PREBUILT 315 $(call ndk_log,Host tools prebuilt directory: $(HOST_PREBUILT)) 316 # The windows prebuilt binaries are for ndk-build.cmd 317 # On cygwin, we must use the Cygwin version of these tools instead. 318 ifneq ($(HOST_OS),cygwin) 319 ifndef HOST_AWK 320 HOST_AWK := $(wildcard $(HOST_PREBUILT)/awk$(HOST_EXEEXT)) 321 endif 322 ifndef HOST_MAKE 323 HOST_MAKE := $(wildcard $(HOST_PREBUILT)/make$(HOST_EXEEXT)) 324 endif 325 ifndef HOST_PYTHON 326 HOST_PYTHON := $(wildcard $(HOST_PREBUILT)/python$(HOST_EXEEXT)) 327 endif 328 endif 329else 330 $(call ndk_log,Host tools prebuilt directory not found, using system tools) 331endif 332 333HOST_ECHO := $(strip $(NDK_HOST_ECHO)) 334ifdef HOST_PREBUILT 335 ifndef HOST_ECHO 336 # Special case, on Cygwin, always use the host echo, not our prebuilt one 337 # which adds \r\n at the end of lines. 338 ifneq ($(HOST_OS),cygwin) 339 HOST_ECHO := $(strip $(wildcard $(HOST_PREBUILT)/echo$(HOST_EXEEXT))) 340 endif 341 endif 342endif 343ifndef HOST_ECHO 344 HOST_ECHO := echo 345endif 346$(call ndk_log,Host 'echo' tool: $(HOST_ECHO)) 347 348# Define HOST_ECHO_N to perform the equivalent of 'echo -n' on all platforms. 349ifeq ($(HOST_OS),windows) 350 # Our custom toolbox echo binary supports -n. 351 HOST_ECHO_N := $(HOST_ECHO) -n 352else 353 # On Posix, just use bare printf. 354 HOST_ECHO_N := printf %s 355endif 356$(call ndk_log,Host 'echo -n' tool: $(HOST_ECHO_N)) 357 358HOST_CMP := $(strip $(NDK_HOST_CMP)) 359ifdef HOST_PREBUILT 360 ifndef HOST_CMP 361 HOST_CMP := $(strip $(wildcard $(HOST_PREBUILT)/cmp$(HOST_EXEEXT))) 362 endif 363endif 364ifndef HOST_CMP 365 HOST_CMP := cmp 366endif 367$(call ndk_log,Host 'cmp' tool: $(HOST_CMP)) 368 369# 370# Verify that the 'awk' tool has the features we need. 371# Both Nawk and Gawk do. 372# 373HOST_AWK := $(strip $(HOST_AWK)) 374ifndef HOST_AWK 375 HOST_AWK := awk 376endif 377$(call ndk_log,Host 'awk' tool: $(HOST_AWK)) 378 379# Location of all awk scripts we use 380BUILD_AWK := $(NDK_ROOT)/build/awk 381 382AWK_TEST := $(shell $(HOST_AWK) -f $(BUILD_AWK)/check-awk.awk) 383$(call ndk_log,Host 'awk' test returned: $(AWK_TEST)) 384ifneq ($(AWK_TEST),Pass) 385 $(call __ndk_info,Host 'awk' tool is outdated. Please define NDK_HOST_AWK to point to Gawk or Nawk !) 386 $(call __ndk_error,Aborting.) 387endif 388 389# 390# On Cygwin/MSys, define the 'cygwin-to-host-path' function here depending on the 391# environment. The rules are the following: 392# 393# 1/ If NDK_USE_CYGPATH=1 and cygpath does exist in your path, cygwin-to-host-path 394# calls "cygpath -m" for each host path. Since invoking 'cygpath -m' from GNU 395# Make for each source file is _very_ slow, this is only a backup plan in 396# case our automatic substitution function (described below) doesn't work. 397# 398# 2/ Generate a Make function that performs the mapping from cygwin/msys to host 399# paths through simple substitutions. It's really a series of nested patsubst 400# calls, that loo like: 401# 402# cygwin-to-host-path = $(patsubst /cygdrive/c/%,c:/%,\ 403# $(patsusbt /cygdrive/d/%,d:/%, \ 404# $1) 405# or in MSys: 406# cygwin-to-host-path = $(patsubst /c/%,c:/%,\ 407# $(patsusbt /d/%,d:/%, \ 408# $1) 409# 410# except that the actual definition is built from the list of mounted 411# drives as reported by "mount" and deals with drive letter cases (i.e. 412# '/cygdrive/c' and '/cygdrive/C') 413# 414ifeq ($(HOST_OS),cygwin) 415 CYGPATH := $(strip $(HOST_CYGPATH)) 416 ifndef CYGPATH 417 $(call ndk_log, Probing for 'cygpath' program) 418 CYGPATH := $(strip $(shell which cygpath 2>/dev/null)) 419 ifndef CYGPATH 420 $(call ndk_log, 'cygpath' was *not* found in your path) 421 else 422 $(call ndk_log, 'cygpath' found as: $(CYGPATH)) 423 endif 424 endif 425 426 ifeq ($(NDK_USE_CYGPATH),1) 427 ifndef CYGPATH 428 $(call __ndk_info,No cygpath) 429 $(call __ndk_error,Aborting) 430 endif 431 $(call ndk_log, Forced usage of 'cygpath -m' through NDK_USE_CYGPATH=1) 432 cygwin-to-host-path = $(strip $(shell $(CYGPATH) -m $1)) 433 else 434 # Call an awk script to generate a Makefile fragment used to define a function 435 WINDOWS_HOST_PATH_FRAGMENT := $(shell mount | tr '\\' '/' | $(HOST_AWK) -f $(BUILD_AWK)/gen-windows-host-path.awk) 436 ifeq ($(NDK_LOG),1) 437 $(info Using cygwin substitution rules:) 438 $(eval $(shell mount | tr '\\' '/' | $(HOST_AWK) -f $(BUILD_AWK)/gen-windows-host-path.awk -vVERBOSE=1)) 439 endif 440 $(eval cygwin-to-host-path = $(WINDOWS_HOST_PATH_FRAGMENT)) 441 endif 442endif # HOST_OS == cygwin 443 444# The location of the build system files 445BUILD_SYSTEM := $(NDK_ROOT)/build/core 446 447# Include common definitions 448include $(BUILD_SYSTEM)/definitions.mk 449 450# ==================================================================== 451# 452# Read all platform-specific configuration files. 453# 454# Each platform must be located in build/platforms/android-<apilevel> 455# where <apilevel> corresponds to an API level number, with: 456# 3 -> Android 1.5 457# 4 -> next platform release 458# 459# ==================================================================== 460 461# The platform files were moved in the Android source tree from 462# $TOP/ndk/build/platforms to $TOP/development/ndk/platforms. However, 463# the official NDK release packages still place them under the old 464# location for now, so deal with this here 465# 466NDK_PLATFORMS_ROOT := $(strip $(NDK_PLATFORMS_ROOT)) 467ifndef NDK_PLATFORMS_ROOT 468 NDK_PLATFORMS_ROOT := $(strip $(wildcard $(NDK_ROOT)/platforms)) 469 ifndef NDK_PLATFORMS_ROOT 470 NDK_PLATFORMS_ROOT := $(strip $(wildcard $(NDK_ROOT)/build/platforms)) 471 endif 472 473 ifndef NDK_PLATFORMS_ROOT 474 $(call __ndk_info,Could not find platform files (headers and libraries)) 475 $(if $(strip $(wildcard $(NDK_ROOT)/RELEASE.TXT)),\ 476 $(call __ndk_info,Please define NDK_PLATFORMS_ROOT to point to a valid directory.)\ 477 ,\ 478 $(call __ndk_info,Please run build/tools/gen-platforms.sh to build the corresponding directory.)\ 479 ) 480 $(call __ndk_error,Aborting) 481 endif 482 483 $(call ndk_log,Found platform root directory: $(NDK_PLATFORMS_ROOT)) 484endif 485ifeq ($(strip $(wildcard $(NDK_PLATFORMS_ROOT)/android-*)),) 486 $(call __ndk_info,Your NDK_PLATFORMS_ROOT points to an invalid directory) 487 $(call __ndk_info,Current value: $(NDK_PLATFORMS_ROOT)) 488 $(call __ndk_error,Aborting) 489endif 490 491NDK_ALL_PLATFORMS := $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*))) 492$(call ndk_log,Found supported platforms: $(NDK_ALL_PLATFORMS)) 493 494$(foreach _platform,$(NDK_ALL_PLATFORMS),\ 495 $(eval include $(BUILD_SYSTEM)/add-platform.mk)\ 496) 497 498# we're going to find the maximum platform number of the form android-<number> 499# ignore others, which could correspond to special and experimental cases 500NDK_PREVIEW_LEVEL := L 501NDK_ALL_PLATFORM_LEVELS := $(filter android-%,$(NDK_ALL_PLATFORMS)) 502NDK_ALL_PLATFORM_LEVELS := $(patsubst android-%,%,$(NDK_ALL_PLATFORM_LEVELS)) 503ifneq (,$(filter $(NDK_PREVIEW_LEVEL),$(NDK_ALL_PLATFORM_LEVELS))) 504 $(call __ndk_info,Please remove stale preview platforms/android-$(NDK_PREVIEW_LEVEL)) 505 $(call __ndk_info,API level android-L is renamed as android-21.) 506 $(call __ndk_error,Aborting) 507endif 508$(call ndk_log,Found stable platform levels: $(NDK_ALL_PLATFORM_LEVELS)) 509 510NDK_MAX_PLATFORM_LEVEL := 3 511$(foreach level,$(NDK_ALL_PLATFORM_LEVELS),\ 512 $(eval NDK_MAX_PLATFORM_LEVEL := $$(call max,$$(NDK_MAX_PLATFORM_LEVEL),$$(level)))\ 513) 514 515$(call ndk_log,Found max platform level: $(NDK_MAX_PLATFORM_LEVEL)) 516 517# Allow the user to point at an alternate location for the toolchains. This is 518# particularly helpful if we want to use prebuilt toolchains for building an NDK 519# module. Specifically, we use this to build libc++ using ndk-build instead of 520# the old build-cxx-stl.sh and maintaining two sets of build rules. 521NDK_TOOLCHAINS_ROOT := $(strip $(NDK_TOOLCHAINS_ROOT)) 522ifndef NDK_TOOLCHAINS_ROOT 523 NDK_TOOLCHAINS_ROOT := $(strip $(NDK_ROOT)/toolchains) 524endif 525 526# ==================================================================== 527# 528# Read all toolchain-specific configuration files. 529# 530# Each toolchain must have a corresponding config.mk file located 531# in build/toolchains/<name>/ that will be included here. 532# 533# Each one of these files should define the following variables: 534# TOOLCHAIN_NAME toolchain name (e.g. arm-linux-androideabi-4.9) 535# TOOLCHAIN_ABIS list of target ABIs supported by the toolchain. 536# 537# Then, it should include $(ADD_TOOLCHAIN) which will perform 538# book-keeping for the build system. 539# 540# ==================================================================== 541 542# the build script to include in each toolchain config.mk 543ADD_TOOLCHAIN := $(BUILD_SYSTEM)/add-toolchain.mk 544 545# the list of known abis and archs 546NDK_KNOWN_DEVICE_ABI64S := arm64-v8a x86_64 mips64 547NDK_KNOWN_DEVICE_ABI32S := armeabi-v7a armeabi x86 mips 548NDK_KNOWN_DEVICE_ABIS := $(NDK_KNOWN_DEVICE_ABI64S) $(NDK_KNOWN_DEVICE_ABI32S) 549NDK_KNOWN_ABIS := armeabi-v7a-hard $(NDK_KNOWN_DEVICE_ABIS) 550NDK_KNOWN_ABI32S := armeabi-v7a-hard $(NDK_KNOWN_DEVICE_ABI32S) 551NDK_KNOWN_ARCHS := arm x86 mips arm64 x86_64 mips64 552_archs := $(sort $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*/arch-*)))) 553NDK_FOUND_ARCHS := $(_archs:arch-%=%) 554 555# the list of abis 'APP_ABI=all' is expanded to 556ifneq (,$(filter yes all all32 all64,$(_NDK_TESTING_ALL_))) 557NDK_APP_ABI_ALL_EXPANDED := $(NDK_KNOWN_ABIS) 558NDK_APP_ABI_ALL32_EXPANDED := $(NDK_KNOWN_ABI32S) 559else 560NDK_APP_ABI_ALL_EXPANDED := $(NDK_KNOWN_DEVICE_ABIS) 561NDK_APP_ABI_ALL32_EXPANDED := $(NDK_KNOWN_DEVICE_ABI32S) 562endif 563NDK_APP_ABI_ALL64_EXPANDED := $(NDK_KNOWN_DEVICE_ABI64S) 564 565# For testing purpose 566ifeq ($(_NDK_TESTING_ALL_),all32) 567NDK_APP_ABI_ALL_EXPANDED := $(NDK_APP_ABI_ALL32_EXPANDED) 568else 569ifeq ($(_NDK_TESTING_ALL_),all64) 570NDK_APP_ABI_ALL_EXPANDED := $(NDK_APP_ABI_ALL64_EXPANDED) 571endif 572endif 573 574# The first API level ndk-build enforces -fPIE for executable 575NDK_FIRST_PIE_PLATFORM_LEVEL := 16 576 577# the list of all toolchains in this NDK 578NDK_ALL_TOOLCHAINS := 579NDK_ALL_ABIS := 580NDK_ALL_ARCHS := 581 582TOOLCHAIN_CONFIGS := $(wildcard $(NDK_ROOT)/build/core/toolchains/*/config.mk) 583$(foreach _config_mk,$(TOOLCHAIN_CONFIGS),\ 584 $(eval include $(BUILD_SYSTEM)/add-toolchain.mk)\ 585) 586 587NDK_ALL_TOOLCHAINS := $(sort $(NDK_ALL_TOOLCHAINS)) 588NDK_ALL_ABIS := $(sort $(NDK_ALL_ABIS)) 589NDK_ALL_ARCHS := $(sort $(NDK_ALL_ARCHS)) 590 591# Check that each ABI has a single architecture definition 592$(foreach _abi,$(strip $(NDK_ALL_ABIS)),\ 593 $(if $(filter-out 1,$(words $(NDK_ABI.$(_abi).arch))),\ 594 $(call __ndk_info,INTERNAL ERROR: The $(_abi) ABI should have exactly one architecture definitions. Found: '$(NDK_ABI.$(_abi).arch)')\ 595 $(call __ndk_error,Aborting...)\ 596 )\ 597) 598 599# Allow the user to define NDK_TOOLCHAIN to a custom toolchain name. 600# This is normally used when the NDK release comes with several toolchains 601# for the same architecture (generally for backwards-compatibility). 602# 603NDK_TOOLCHAIN := $(strip $(NDK_TOOLCHAIN)) 604ifdef NDK_TOOLCHAIN 605 # check that the toolchain name is supported 606 $(if $(filter-out $(NDK_ALL_TOOLCHAINS),$(NDK_TOOLCHAIN)),\ 607 $(call __ndk_info,NDK_TOOLCHAIN is defined to the unsupported value $(NDK_TOOLCHAIN)) \ 608 $(call __ndk_info,Please use one of the following values: $(NDK_ALL_TOOLCHAINS))\ 609 $(call __ndk_error,Aborting)\ 610 ,) 611 $(call ndk_log, Using specific toolchain $(NDK_TOOLCHAIN)) 612endif 613 614# Allow the user to define NDK_TOOLCHAIN_VERSION to override the toolchain 615# version number. Unlike NDK_TOOLCHAIN, this only changes the suffix of 616# the toolchain path we're using. 617# 618# For example, if GCC 4.8 is the default, defining NDK_TOOLCHAIN_VERSION=4.9 619# will ensure that ndk-build uses the following toolchains, depending on 620# the target architecture: 621# 622# arm -> arm-linux-androideabi-4.9 623# x86 -> x86-android-linux-4.9 624# mips -> mipsel-linux-android-4.9 625# 626# This is used in setup-toolchain.mk 627# 628NDK_TOOLCHAIN_VERSION := $(strip $(NDK_TOOLCHAIN_VERSION)) 629 630$(call ndk_log, This NDK supports the following target architectures and ABIS:) 631$(foreach arch,$(NDK_ALL_ARCHS),\ 632 $(call ndk_log, $(space)$(space)$(arch): $(NDK_ARCH.$(arch).abis))\ 633) 634$(call ndk_log, This NDK supports the following toolchains and target ABIs:) 635$(foreach tc,$(NDK_ALL_TOOLCHAINS),\ 636 $(call ndk_log, $(space)$(space)$(tc): $(NDK_TOOLCHAIN.$(tc).abis))\ 637) 638 639