core/config.mk

   1 # This is included by the top-level Makefile.
   2 # It sets up standard variables based on the
   3 # current configuration and platform, which
   4 # are not specific to what is being built.
   5
   6 # Only use ANDROID_BUILD_SHELL to wrap around bash.
   7 # DO NOT use other shells such as zsh.
   8 ifdef ANDROID_BUILD_SHELL
   9 SHELL := $(ANDROID_BUILD_SHELL)
  10 else
  11 # Use bash, not whatever shell somebody has installed as /bin/sh
  12 # This is repeated from main.mk, since envsetup.sh runs this file
  13 # directly.
  14 SHELL := /bin/bash
  15 endif
  16
  17 # Utility variables.
  18 empty :=
  19 space := $(empty) $(empty)
  20 comma := ,
  21
  22 # Tell python not to spam the source tree with .pyc files.  This
  23 # only has an effect on python 2.6 and above.
  24 export PYTHONDONTWRITEBYTECODE := 1
  25
  26 # Standard source directories.
  27 SRC_DOCS:= $(TOPDIR)docs
  28 # TODO: Enforce some kind of layering; only add include paths
  29 #       when a module links against a particular library.
  30 # TODO: See if we can remove most of these from the global list.
  31 SRC_HEADERS := \
  32         $(TOPDIR)system/core/include \
  33         $(TOPDIR)hardware/libhardware/include \
  34         $(TOPDIR)hardware/libhardware_legacy/include \
  35         $(TOPDIR)hardware/ril/include \
  36         $(TOPDIR)libnativehelper/include \
  37         $(TOPDIR)frameworks/native/include \
  38         $(TOPDIR)frameworks/native/opengl/include \
  39         $(TOPDIR)frameworks/av/include \
  40         $(TOPDIR)frameworks/base/include \
  41         $(TOPDIR)external/skia/include
  42 SRC_HOST_HEADERS:=$(TOPDIR)tools/include
  43 SRC_LIBRARIES:= $(TOPDIR)libs
  44 SRC_SERVERS:= $(TOPDIR)servers
  45 SRC_TARGET_DIR := $(TOPDIR)build/target
  46 SRC_API_DIR := $(TOPDIR)prebuilts/sdk/api
  47
  48 # Some specific paths to tools
  49 SRC_DROIDDOC_DIR := $(TOPDIR)build/tools/droiddoc
  50
  51 # Various mappings to avoid hard-coding paths all over the place
  52 include $(BUILD_SYSTEM)/pathmap.mk
  53
  54 # ###############################################################
  55 # Build system internal files
  56 # ###############################################################
  57
  58 BUILD_COMBOS:= $(BUILD_SYSTEM)/combo
  59
  60 CLEAR_VARS:= $(BUILD_SYSTEM)/clear_vars.mk
  61 BUILD_HOST_STATIC_LIBRARY:= $(BUILD_SYSTEM)/host_static_library.mk
  62 BUILD_HOST_SHARED_LIBRARY:= $(BUILD_SYSTEM)/host_shared_library.mk
  63 BUILD_STATIC_LIBRARY:= $(BUILD_SYSTEM)/static_library.mk
  64 BUILD_RAW_STATIC_LIBRARY := $(BUILD_SYSTEM)/raw_static_library.mk
  65 BUILD_SHARED_LIBRARY:= $(BUILD_SYSTEM)/shared_library.mk
  66 BUILD_EXECUTABLE:= $(BUILD_SYSTEM)/executable.mk
  67 BUILD_RAW_EXECUTABLE:= $(BUILD_SYSTEM)/raw_executable.mk
  68 BUILD_HOST_EXECUTABLE:= $(BUILD_SYSTEM)/host_executable.mk
  69 BUILD_PACKAGE:= $(BUILD_SYSTEM)/package.mk
  70 BUILD_PHONY_PACKAGE:= $(BUILD_SYSTEM)/phony_package.mk
  71 BUILD_HOST_PREBUILT:= $(BUILD_SYSTEM)/host_prebuilt.mk
  72 BUILD_PREBUILT:= $(BUILD_SYSTEM)/prebuilt.mk
  73 BUILD_MULTI_PREBUILT:= $(BUILD_SYSTEM)/multi_prebuilt.mk
  74 BUILD_JAVA_LIBRARY:= $(BUILD_SYSTEM)/java_library.mk
  75 BUILD_STATIC_JAVA_LIBRARY:= $(BUILD_SYSTEM)/static_java_library.mk
  76 BUILD_HOST_JAVA_LIBRARY:= $(BUILD_SYSTEM)/host_java_library.mk
  77 BUILD_DROIDDOC:= $(BUILD_SYSTEM)/droiddoc.mk
  78 BUILD_COPY_HEADERS := $(BUILD_SYSTEM)/copy_headers.mk
  79 BUILD_NATIVE_TEST := $(BUILD_SYSTEM)/native_test.mk
  80 BUILD_HOST_NATIVE_TEST := $(BUILD_SYSTEM)/host_native_test.mk
  81 BUILD_NOTICE_FILE := $(BUILD_SYSTEM)/notice_files.mk
  82
  83 -include cts/build/config.mk
  84
  85 # ###############################################################
  86 # Parse out any modifier targets.
  87 # ###############################################################
  88
  89 # The 'showcommands' goal says to show the full command
  90 # lines being executed, instead of a short message about
  91 # the kind of operation being done.
  92 SHOW_COMMANDS:= $(filter showcommands,$(MAKECMDGOALS))
  93
  94
  95 # ###############################################################
  96 # Set common values
  97 # ###############################################################
  98
  99 # These can be changed to modify both host and device modules.
 100 COMMON_GLOBAL_CFLAGS:= -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith
 101 COMMON_RELEASE_CFLAGS:= -DNDEBUG -UDEBUG
 102
 103 COMMON_GLOBAL_CPPFLAGS:= $(COMMON_GLOBAL_CFLAGS) -Wsign-promo
 104 COMMON_RELEASE_CPPFLAGS:= $(COMMON_RELEASE_CFLAGS)
 105
 106 # Set the extensions used for various packages
 107 COMMON_PACKAGE_SUFFIX := .zip
 108 COMMON_JAVA_PACKAGE_SUFFIX := .jar
 109 COMMON_ANDROID_PACKAGE_SUFFIX := .apk
 110
 111 # list of flags to turn specific warnings in to errors
 112 TARGET_ERROR_FLAGS := -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point
 113
 114 # TODO: do symbol compression
 115 TARGET_COMPRESS_MODULE_SYMBOLS := false
 116
 117 # Default shell is mksh. Other possible value is ash.
 118 TARGET_SHELL := mksh
 119
 120 # ###############################################################
 121 # Include sub-configuration files
 122 # ###############################################################
 123
 124 # ---------------------------------------------------------------
 125 # Try to include buildspec.mk, which will try to set stuff up.
 126 # If this file doesn't exist, the environemnt variables will
 127 # be used, and if that doesn't work, then the default is an
 128 # arm build
 129 ifndef ANDROID_BUILDSPEC
 130 ANDROID_BUILDSPEC := $(TOPDIR)buildspec.mk
 131 endif
 132 -include $(ANDROID_BUILDSPEC)
 133
 134 # ---------------------------------------------------------------
 135 # Define most of the global variables.  These are the ones that
 136 # are specific to the user's build configuration.
 137 include $(BUILD_SYSTEM)/envsetup.mk
 138
 139 # Boards may be defined under $(SRC_TARGET_DIR)/board/$(TARGET_DEVICE)
 140 # or under vendor/*/$(TARGET_DEVICE).  Search in both places, but
 141 # make sure only one exists.
 142 # Real boards should always be associated with an OEM vendor.
 143 board_config_mk := \
 144         $(strip $(wildcard \
 145                 $(SRC_TARGET_DIR)/board/$(TARGET_DEVICE)/BoardConfig.mk \
 146                 device/*/$(TARGET_DEVICE)/BoardConfig.mk \
 147                 vendor/*/$(TARGET_DEVICE)/BoardConfig.mk \
 148         ))
 149 ifeq ($(board_config_mk),)
 150   $(error No config file found for TARGET_DEVICE $(TARGET_DEVICE))
 151 endif
 152 ifneq ($(words $(board_config_mk)),1)
 153   $(error Multiple board config files for TARGET_DEVICE $(TARGET_DEVICE): $(board_config_mk))
 154 endif
 155 include $(board_config_mk)
 156 ifeq ($(TARGET_ARCH),)
 157   $(error TARGET_ARCH not defined by board config: $(board_config_mk))
 158 endif
 159 TARGET_DEVICE_DIR := $(patsubst %/,%,$(dir $(board_config_mk)))
 160 board_config_mk :=
 161
 162 # The build system exposes several variables for where to find the kernel
 163 # headers:
 164 #   TARGET_DEVICE_KERNEL_HEADERS is automatically created for the current
 165 #       device being built. It is set as $(TARGET_DEVICE_DIR)/kernel-headers,
 166 #       e.g. device/samsung/tuna/kernel-headers. This directory is not
 167 #       explicitly set by anyone, the build system always adds this subdir.
 168 #
 169 #   TARGET_BOARD_KERNEL_HEADERS is specified by the BoardConfig.mk file
 170 #       to allow other directories to be included. This is useful if there's
 171 #       some common place where a few headers are being kept for a group
 172 #       of devices. For example, device/<vendor>/common/kernel-headers could
 173 #       contain some headers for several of <vendor>'s devices.
 174 #
 175 #   TARGET_PRODUCT_KERNEL_HEADERS is generated by the product inheritance
 176 #       graph. This allows architecture products to provide headers for the
 177 #       devices using that architecture. For example,
 178 #       hardware/ti/omap4xxx/omap4.mk will specify
 179 #       PRODUCT_VENDOR_KERNEL_HEADERS variable that specify where the omap4
 180 #       specific headers are, e.g. hardware/ti/omap4xxx/kernel-headers.
 181 #       The build system then combines all the values specified by all the
 182 #       PRODUCT_VENDOR_KERNEL_HEADERS directives in the product inheritance
 183 #       tree and then exports a TARGET_PRODUCT_KERNEL_HEADERS variable.
 184 #
 185 # The layout of subdirs in any of the kernel-headers dir should mirror the
 186 # layout of the kernel include/ directory. For example,
 187 #     device/samsung/tuna/kernel-headers/linux/,
 188 #     hardware/ti/omap4xxx/kernel-headers/media/,
 189 #     etc.
 190 #
 191 # NOTE: These directories MUST contain post-processed headers using the
 192 # bionic/libc/kernel/clean_header.py tool. Additionally, the original kernel
 193 # headers must also be checked in, but in a different subdirectory. By
 194 # convention, the originals should be checked into original-kernel-headers
 195 # directory of the same parent dir. For example,
 196 #     device/samsung/tuna/kernel-headers            <----- post-processed
 197 #     device/samsung/tuna/original-kernel-headers   <----- originals
 198 #
 199 TARGET_DEVICE_KERNEL_HEADERS := $(strip $(wildcard $(TARGET_DEVICE_DIR)/kernel-headers))
 200
 201 define validate-kernel-headers
 202 $(if $(firstword $(foreach hdr_dir,$(1),\
 203          $(filter-out kernel-headers,$(notdir $(hdr_dir))))),\
 204      $(error Kernel header dirs must be end in kernel-headers: $(1)))
 205 endef
 206 # also allow the board config to provide additional directories since
 207 # there could be device/oem/base_hw and device/oem/derived_hw
 208 # that both are valid devices but derived_hw needs to use kernel headers
 209 # from base_hw.
 210 TARGET_BOARD_KERNEL_HEADERS := $(strip $(wildcard $(TARGET_BOARD_KERNEL_HEADERS)))
 211 TARGET_BOARD_KERNEL_HEADERS := $(patsubst %/,%,$(TARGET_BOARD_KERNEL_HEADERS))
 212 $(call validate-kernel-headers,$(TARGET_BOARD_KERNEL_HEADERS))
 213
 214 # then add product-inherited includes, to allow for
 215 # hardware/sivendor/chip/chip.mk to include their own headers
 216 TARGET_PRODUCT_KERNEL_HEADERS := $(strip $(wildcard $(PRODUCT_VENDOR_KERNEL_HEADERS)))
 217 TARGET_PRODUCT_KERNEL_HEADERS := $(patsubst %/,%,$(TARGET_PRODUCT_KERNEL_HEADERS))
 218 $(call validate-kernel-headers,$(TARGET_PRODUCT_KERNEL_HEADERS))
 219
 220 # Clean up/verify variables defined by the board config file.
 221 TARGET_BOOTLOADER_BOARD_NAME := $(strip $(TARGET_BOOTLOADER_BOARD_NAME))
 222 TARGET_CPU_ABI := $(strip $(TARGET_CPU_ABI))
 223 ifeq ($(TARGET_CPU_ABI),)
 224   $(error No TARGET_CPU_ABI defined by board config: $(board_config_mk))
 225 endif
 226 TARGET_CPU_ABI2 := $(strip $(TARGET_CPU_ABI2))
 227
 228 # $(1): os/arch
 229 define select-android-config-h
 230 build/core/combo/include/arch/$(1)/AndroidConfig.h
 231 endef
 232
 233 combo_target := HOST_
 234 include $(BUILD_SYSTEM)/combo/select.mk
 235
 236 # on windows, the tools have .exe at the end, and we depend on the
 237 # host config stuff being done first
 238
 239 combo_target := TARGET_
 240 include $(BUILD_SYSTEM)/combo/select.mk
 241
 242 # Compute TARGET_TOOLCHAIN_ROOT from TARGET_TOOLS_PREFIX
 243 # if only TARGET_TOOLS_PREFIX is passed to the make command.
 244 ifndef TARGET_TOOLCHAIN_ROOT
 245 TARGET_TOOLCHAIN_ROOT := $(patsubst %/, %, $(dir $(TARGET_TOOLS_PREFIX)))
 246 TARGET_TOOLCHAIN_ROOT := $(patsubst %/, %, $(dir $(TARGET_TOOLCHAIN_ROOT)))
 247 TARGET_TOOLCHAIN_ROOT := $(wildcard $(TARGET_TOOLCHAIN_ROOT))
 248 endif
 249
 250 # Pick a Java compiler.
 251 include $(BUILD_SYSTEM)/combo/javac.mk
 252
 253 # ---------------------------------------------------------------
 254 # Check that the configuration is current.  We check that
 255 # BUILD_ENV_SEQUENCE_NUMBER is current against this value.
 256 # Don't fail if we're called from envsetup, so they have a
 257 # chance to update their environment.
 258
 259 ifeq (,$(strip $(CALLED_FROM_SETUP)))
 260 ifneq (,$(strip $(BUILD_ENV_SEQUENCE_NUMBER)))
 261 ifneq ($(BUILD_ENV_SEQUENCE_NUMBER),$(CORRECT_BUILD_ENV_SEQUENCE_NUMBER))
 262 $(warning BUILD_ENV_SEQUENCE_NUMBER is set incorrectly.)
 263 $(info *** If you use envsetup/lunch/choosecombo:)
 264 $(info ***   - Re-execute envsetup (". envsetup.sh"))
 265 $(info ***   - Re-run lunch or choosecombo)
 266 $(info *** If you use buildspec.mk:)
 267 $(info ***   - Look at buildspec.mk.default to see what has changed)
 268 $(info ***   - Update BUILD_ENV_SEQUENCE_NUMBER to "$(CORRECT_BUILD_ENV_SEQUENCE_NUMBER)")
 269 $(error bailing..)
 270 endif
 271 endif
 272 endif
 273
 274
 275 # ---------------------------------------------------------------
 276 # Generic tools.
 277
 278 LEX := flex
 279 # The default PKGDATADIR built in the prebuilt bison is a relative path
 280 # external/bison/data.
 281 # To run bison from elsewhere you need to set up enviromental variable
 282 # BISON_PKGDATADIR.
 283 BISON_PKGDATADIR := $(PWD)/external/bison/data
 284 BISON := prebuilts/misc/$(BUILD_OS)-$(BUILD_ARCH)/bison/bison
 285 YACC := $(BISON) -d
 286
 287 DOXYGEN:= doxygen
 288 AAPT := $(HOST_OUT_EXECUTABLES)/aapt$(HOST_EXECUTABLE_SUFFIX)
 289 AIDL := $(HOST_OUT_EXECUTABLES)/aidl$(HOST_EXECUTABLE_SUFFIX)
 290 PROTOC := $(HOST_OUT_EXECUTABLES)/aprotoc$(HOST_EXECUTABLE_SUFFIX)
 291 SIGNAPK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
 292 MKBOOTFS := $(HOST_OUT_EXECUTABLES)/mkbootfs$(HOST_EXECUTABLE_SUFFIX)
 293 MINIGZIP := $(HOST_OUT_EXECUTABLES)/minigzip$(HOST_EXECUTABLE_SUFFIX)
 294 MKBOOTIMG := $(HOST_OUT_EXECUTABLES)/mkbootimg$(HOST_EXECUTABLE_SUFFIX)
 295 MKYAFFS2 := $(HOST_OUT_EXECUTABLES)/mkyaffs2image$(HOST_EXECUTABLE_SUFFIX)
 296 APICHECK := $(HOST_OUT_EXECUTABLES)/apicheck$(HOST_EXECUTABLE_SUFFIX)
 297 FS_GET_STATS := $(HOST_OUT_EXECUTABLES)/fs_get_stats$(HOST_EXECUTABLE_SUFFIX)
 298 MKEXT2IMG := $(HOST_OUT_EXECUTABLES)/genext2fs$(HOST_EXECUTABLE_SUFFIX)
 299 MAKE_EXT4FS := $(HOST_OUT_EXECUTABLES)/make_ext4fs$(HOST_EXECUTABLE_SUFFIX)
 300 MKEXTUSERIMG := $(HOST_OUT_EXECUTABLES)/mkuserimg.sh
 301 MKEXT2BOOTIMG := external/genext2fs/mkbootimg_ext2.sh
 302 SIMG2IMG := $(HOST_OUT_EXECUTABLES)/simg2img$(HOST_EXECUTABLE_SUFFIX)
 303 E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
 304 MKTARBALL := build/tools/mktarball.sh
 305 TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)
 306 E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
 307 JARJAR := $(HOST_OUT_JAVA_LIBRARIES)/jarjar.jar
 308 PROGUARD := external/proguard/bin/proguard.sh
 309 JAVATAGS := build/tools/java-event-log-tags.py
 310 LLVM_RS_CC := $(HOST_OUT_EXECUTABLES)/llvm-rs-cc$(HOST_EXECUTABLE_SUFFIX)
 311 BCC_COMPAT := $(HOST_OUT_EXECUTABLES)/bcc_compat$(HOST_EXECUTABLE_SUFFIX)
 312 DEXOPT := $(HOST_OUT_EXECUTABLES)/dexopt$(HOST_EXECUTABLE_SUFFIX)
 313 DEXPREOPT := dalvik/tools/dex-preopt
 314 LINT := prebuilts/sdk/tools/lint
 315
 316 # ACP is always for the build OS, not for the host OS
 317 ACP := $(BUILD_OUT_EXECUTABLES)/acp$(BUILD_EXECUTABLE_SUFFIX)
 318
 319 # dx is java behind a shell script; no .exe necessary.
 320 DX := $(HOST_OUT_EXECUTABLES)/dx
 321 ZIPALIGN := $(HOST_OUT_EXECUTABLES)/zipalign$(HOST_EXECUTABLE_SUFFIX)
 322 FINDBUGS := prebuilt/common/findbugs/bin/findbugs
 323 EMMA_JAR := external/emma/lib/emma$(COMMON_JAVA_PACKAGE_SUFFIX)
 324
 325 # Deal with archaic version of bison on Mac OS X.
 326 ifeq ($(filter 1.28,$(shell $(YACC) -V)),)
 327 YACC_HEADER_SUFFIX:= .hpp
 328 else
 329 YACC_HEADER_SUFFIX:= .cpp.h
 330 endif
 331
 332 # Don't use column under Windows, cygwin or not
 333 ifeq ($(HOST_OS),windows)
 334 COLUMN:= cat
 335 else
 336 COLUMN:= column
 337 endif
 338
 339 OLD_FLEX := prebuilts/misc/$(HOST_PREBUILT_TAG)/flex/flex-2.5.4a$(HOST_EXECUTABLE_SUFFIX)
 340
 341 ifeq ($(HOST_OS),darwin)
 342 # Mac OS' screwy version of java uses a non-standard directory layout
 343 # and doesn't even seem to have tools.jar.  On the other hand, javac seems
 344 # to be able to magically find the classes in there, wherever they are, so
 345 # leave this blank
 346 HOST_JDK_TOOLS_JAR :=
 347 else
 348 HOST_JDK_TOOLS_JAR:= $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
 349 ifeq ($(wildcard $(HOST_JDK_TOOLS_JAR)),)
 350 $(error Error: could not find jdk tools.jar, please install JDK6, \
 351     which you can download from java.sun.com)
 352 endif
 353 endif
 354
 355 # Is the host JDK 64-bit version?
 356 HOST_JDK_IS_64BIT_VERSION :=
 357 ifneq ($(filter 64-Bit, $(shell java -version 2>&1)),)
 358 HOST_JDK_IS_64BIT_VERSION := true
 359 endif
 360
 361 # It's called md5 on Mac OS and md5sum on Linux
 362 ifeq ($(HOST_OS),darwin)
 363 MD5SUM:=md5 -q
 364 else
 365 MD5SUM:=md5sum
 366 endif
 367
 368 APICHECK_CLASSPATH := $(HOST_JDK_TOOLS_JAR)
 369 APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
 370 APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/jsilver$(COMMON_JAVA_PACKAGE_SUFFIX)
 371 APICHECK_COMMAND := $(APICHECK) -JXmx1024m -J"classpath $(APICHECK_CLASSPATH)"
 372
 373 # The default key if not set as LOCAL_CERTIFICATE
 374 ifdef PRODUCT_DEFAULT_DEV_CERTIFICATE
 375   DEFAULT_SYSTEM_DEV_CERTIFICATE := $(PRODUCT_DEFAULT_DEV_CERTIFICATE)
 376 else
 377   DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
 378 endif
 379
 380 # ###############################################################
 381 # Set up final options.
 382 # ###############################################################
 383
 384 HOST_GLOBAL_CFLAGS += $(COMMON_GLOBAL_CFLAGS)
 385 HOST_RELEASE_CFLAGS += $(COMMON_RELEASE_CFLAGS)
 386
 387 HOST_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
 388 HOST_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
 389
 390 TARGET_GLOBAL_CFLAGS += $(COMMON_GLOBAL_CFLAGS)
 391 TARGET_RELEASE_CFLAGS += $(COMMON_RELEASE_CFLAGS)
 392
 393 TARGET_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
 394 TARGET_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
 395
 396 HOST_GLOBAL_LD_DIRS += -L$(HOST_OUT_INTERMEDIATE_LIBRARIES)
 397 TARGET_GLOBAL_LD_DIRS += -L$(TARGET_OUT_INTERMEDIATE_LIBRARIES)
 398
 399 HOST_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $(HOST_OUT_HEADERS)
 400 TARGET_PROJECT_INCLUDES:= $(SRC_HEADERS) $(TARGET_OUT_HEADERS) \
 401                 $(TARGET_DEVICE_KERNEL_HEADERS) $(TARGET_BOARD_KERNEL_HEADERS) \
 402                 $(TARGET_PRODUCT_KERNEL_HEADERS)
 403
 404 # Many host compilers don't support these flags, so we have to make
 405 # sure to only specify them for the target compilers checked in to
 406 # the source tree.
 407 TARGET_GLOBAL_CFLAGS += $(TARGET_ERROR_FLAGS)
 408 TARGET_GLOBAL_CPPFLAGS += $(TARGET_ERROR_FLAGS)
 409
 410 HOST_GLOBAL_CFLAGS += $(HOST_RELEASE_CFLAGS)
 411 HOST_GLOBAL_CPPFLAGS += $(HOST_RELEASE_CPPFLAGS)
 412
 413 TARGET_GLOBAL_CFLAGS += $(TARGET_RELEASE_CFLAGS)
 414 TARGET_GLOBAL_CPPFLAGS += $(TARGET_RELEASE_CPPFLAGS)
 415
 416 # define llvm tools and global flags
 417 include $(BUILD_SYSTEM)/llvm_config.mk
 418
 419 # ###############################################################
 420 # Collect a list of the SDK versions that we could compile against
 421 # For use with the LOCAL_SDK_VERSION variable for include $(BUILD_PACKAGE)
 422 # ###############################################################
 423
 424 HISTORICAL_SDK_VERSIONS_ROOT := $(TOPDIR)prebuilts/sdk
 425 HISTORICAL_NDK_VERSIONS_ROOT := $(TOPDIR)prebuilts/ndk
 426
 427 # Historical SDK version N is stored in $(HISTORICAL_SDK_VERSIONS_ROOT)/N.
 428 # The 'current' version is whatever this source tree is.
 429 #
 430 # sgrax     is the opposite of xargs.  It takes the list of args and puts them
 431 #           on each line for sort to process.
 432 # sort -g   is a numeric sort, so 1 2 3 10 instead of 1 10 2 3.
 433
 434 # Numerically sort a list of numbers
 435 # $(1): the list of numbers to be sorted
 436 define numerically_sort
 437 $(shell function sgrax() { \
 438     while [ -n "$$1" ] ; do echo $$1 ; shift ; done \
 439     } ; \
 440     ( sgrax $(1) | sort -g ) )
 441 endef
 442
 443 TARGET_AVAILABLE_SDK_VERSIONS := $(call numerically_sort,\
 444     $(patsubst $(HISTORICAL_SDK_VERSIONS_ROOT)/%/android.jar,%, \
 445     $(wildcard $(HISTORICAL_SDK_VERSIONS_ROOT)/*/android.jar)))
 446
 447 INTERNAL_PLATFORM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/public_api.txt
 448
 449 # This is the standard way to name a directory containing prebuilt target
 450 # objects. E.g., prebuilt/$(TARGET_PREBUILT_TAG)/libc.so
 451 TARGET_PREBUILT_TAG := android-$(TARGET_ARCH)
 452
 453 # Set up RS prebuilt variables for compatibility library
 454
 455 RS_PREBUILT_CLCORE := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/libclcore.bc
 456 RS_PREBUILT_LIBPATH := -L prebuilts/ndk/8/platforms/android-9/arch-$(TARGET_ARCH)/usr/lib
 457 RS_PREBUILT_COMPILER_RT := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/libcompiler_rt.a
 458
 459 include $(BUILD_SYSTEM)/dumpvar.mk