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