config.mk revision e719f28d938d3290ac591769a15b0b5e9e64fabb
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.
8ifdef ANDROID_BUILD_SHELL
9SHELL := $(ANDROID_BUILD_SHELL)
10else
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.
14SHELL := /bin/bash
15endif
16
17# Utility variables.
18empty :=
19space := $(empty) $(empty)
20comma := ,
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.
24export PYTHONDONTWRITEBYTECODE := 1
25
26# Standard source directories.
27SRC_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.
31SRC_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	$(TOPDIR)external/skia/include
43SRC_HOST_HEADERS:=$(TOPDIR)tools/include
44SRC_LIBRARIES:= $(TOPDIR)libs
45SRC_SERVERS:= $(TOPDIR)servers
46SRC_TARGET_DIR := $(TOPDIR)build/target
47SRC_API_DIR := $(TOPDIR)prebuilts/sdk/api
48
49# Some specific paths to tools
50SRC_DROIDDOC_DIR := $(TOPDIR)build/tools/droiddoc
51
52# Various mappings to avoid hard-coding paths all over the place
53include $(BUILD_SYSTEM)/pathmap.mk
54
55# ###############################################################
56# Build system internal files
57# ###############################################################
58
59BUILD_COMBOS:= $(BUILD_SYSTEM)/combo
60
61CLEAR_VARS:= $(BUILD_SYSTEM)/clear_vars.mk
62BUILD_HOST_STATIC_LIBRARY:= $(BUILD_SYSTEM)/host_static_library.mk
63BUILD_HOST_SHARED_LIBRARY:= $(BUILD_SYSTEM)/host_shared_library.mk
64BUILD_STATIC_LIBRARY:= $(BUILD_SYSTEM)/static_library.mk
65BUILD_RAW_STATIC_LIBRARY := $(BUILD_SYSTEM)/raw_static_library.mk
66BUILD_SHARED_LIBRARY:= $(BUILD_SYSTEM)/shared_library.mk
67BUILD_EXECUTABLE:= $(BUILD_SYSTEM)/executable.mk
68BUILD_RAW_EXECUTABLE:= $(BUILD_SYSTEM)/raw_executable.mk
69BUILD_HOST_EXECUTABLE:= $(BUILD_SYSTEM)/host_executable.mk
70BUILD_PACKAGE:= $(BUILD_SYSTEM)/package.mk
71BUILD_PHONY_PACKAGE:= $(BUILD_SYSTEM)/phony_package.mk
72BUILD_HOST_PREBUILT:= $(BUILD_SYSTEM)/host_prebuilt.mk
73BUILD_PREBUILT:= $(BUILD_SYSTEM)/prebuilt.mk
74BUILD_MULTI_PREBUILT:= $(BUILD_SYSTEM)/multi_prebuilt.mk
75BUILD_JAVA_LIBRARY:= $(BUILD_SYSTEM)/java_library.mk
76BUILD_STATIC_JAVA_LIBRARY:= $(BUILD_SYSTEM)/static_java_library.mk
77BUILD_HOST_JAVA_LIBRARY:= $(BUILD_SYSTEM)/host_java_library.mk
78BUILD_DROIDDOC:= $(BUILD_SYSTEM)/droiddoc.mk
79BUILD_COPY_HEADERS := $(BUILD_SYSTEM)/copy_headers.mk
80BUILD_NATIVE_TEST := $(BUILD_SYSTEM)/native_test.mk
81BUILD_HOST_NATIVE_TEST := $(BUILD_SYSTEM)/host_native_test.mk
82BUILD_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.
93SHOW_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.
101COMMON_GLOBAL_CFLAGS:= -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Winit-self -Wpointer-arith
102COMMON_RELEASE_CFLAGS:= -DNDEBUG -UDEBUG
103
104COMMON_GLOBAL_CPPFLAGS:= $(COMMON_GLOBAL_CFLAGS) -Wsign-promo
105COMMON_RELEASE_CPPFLAGS:= $(COMMON_RELEASE_CFLAGS)
106
107# Set the extensions used for various packages
108COMMON_PACKAGE_SUFFIX := .zip
109COMMON_JAVA_PACKAGE_SUFFIX := .jar
110COMMON_ANDROID_PACKAGE_SUFFIX := .apk
111
112# list of flags to turn specific warnings in to errors
113TARGET_ERROR_FLAGS := -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point
114
115# TODO: do symbol compression
116TARGET_COMPRESS_MODULE_SYMBOLS := false
117
118# Default shell is mksh. Other possible value is ash.
119TARGET_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
130ifndef ANDROID_BUILDSPEC
131ANDROID_BUILDSPEC := $(TOPDIR)buildspec.mk
132endif
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.
138include $(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.
144board_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	))
150ifeq ($(board_config_mk),)
151  $(error No config file found for TARGET_DEVICE $(TARGET_DEVICE))
152endif
153ifneq ($(words $(board_config_mk)),1)
154  $(error Multiple board config files for TARGET_DEVICE $(TARGET_DEVICE): $(board_config_mk))
155endif
156include $(board_config_mk)
157ifeq ($(TARGET_ARCH),)
158  $(error TARGET_ARCH not defined by board config: $(board_config_mk))
159endif
160TARGET_DEVICE_DIR := $(patsubst %/,%,$(dir $(board_config_mk)))
161board_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#
200TARGET_DEVICE_KERNEL_HEADERS := $(strip $(wildcard $(TARGET_DEVICE_DIR)/kernel-headers))
201
202define validate-kernel-headers
203$(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)))
206endef
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.
211TARGET_BOARD_KERNEL_HEADERS := $(strip $(wildcard $(TARGET_BOARD_KERNEL_HEADERS)))
212TARGET_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
217TARGET_PRODUCT_KERNEL_HEADERS := $(strip $(wildcard $(PRODUCT_VENDOR_KERNEL_HEADERS)))
218TARGET_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.
222TARGET_BOOTLOADER_BOARD_NAME := $(strip $(TARGET_BOOTLOADER_BOARD_NAME))
223TARGET_CPU_ABI := $(strip $(TARGET_CPU_ABI))
224ifeq ($(TARGET_CPU_ABI),)
225  $(error No TARGET_CPU_ABI defined by board config: $(board_config_mk))
226endif
227TARGET_CPU_ABI2 := $(strip $(TARGET_CPU_ABI2))
228
229# default target GCC version
230ifeq ($(strip $(TARGET_GCC_VERSION)),)
231TARGET_GCC_VERSION := 4.6
232endif
233
234# $(1): os/arch
235define select-android-config-h
236build/core/combo/include/arch/$(1)/AndroidConfig.h
237endef
238
239combo_target := HOST_
240include $(BUILD_SYSTEM)/combo/select.mk
241
242# on windows, the tools have .exe at the end, and we depend on the
243# host config stuff being done first
244
245combo_target := TARGET_
246include $(BUILD_SYSTEM)/combo/select.mk
247
248# Compute TARGET_TOOLCHAIN_ROOT from TARGET_TOOLS_PREFIX
249# if only TARGET_TOOLS_PREFIX is passed to the make command.
250ifndef TARGET_TOOLCHAIN_ROOT
251TARGET_TOOLCHAIN_ROOT := $(patsubst %/, %, $(dir $(TARGET_TOOLS_PREFIX)))
252TARGET_TOOLCHAIN_ROOT := $(patsubst %/, %, $(dir $(TARGET_TOOLCHAIN_ROOT)))
253TARGET_TOOLCHAIN_ROOT := $(wildcard $(TARGET_TOOLCHAIN_ROOT))
254endif
255
256# Pick a Java compiler.
257include $(BUILD_SYSTEM)/combo/javac.mk
258
259# ---------------------------------------------------------------
260# Check that the configuration is current.  We check that
261# BUILD_ENV_SEQUENCE_NUMBER is current against this value.
262# Don't fail if we're called from envsetup, so they have a
263# chance to update their environment.
264
265ifeq (,$(strip $(CALLED_FROM_SETUP)))
266ifneq (,$(strip $(BUILD_ENV_SEQUENCE_NUMBER)))
267ifneq ($(BUILD_ENV_SEQUENCE_NUMBER),$(CORRECT_BUILD_ENV_SEQUENCE_NUMBER))
268$(warning BUILD_ENV_SEQUENCE_NUMBER is set incorrectly.)
269$(info *** If you use envsetup/lunch/choosecombo:)
270$(info ***   - Re-execute envsetup (". envsetup.sh"))
271$(info ***   - Re-run lunch or choosecombo)
272$(info *** If you use buildspec.mk:)
273$(info ***   - Look at buildspec.mk.default to see what has changed)
274$(info ***   - Update BUILD_ENV_SEQUENCE_NUMBER to "$(CORRECT_BUILD_ENV_SEQUENCE_NUMBER)")
275$(error bailing..)
276endif
277endif
278endif
279
280
281# ---------------------------------------------------------------
282# Generic tools.
283
284LEX:= flex
285YACC:= bison -d
286DOXYGEN:= doxygen
287AAPT := $(HOST_OUT_EXECUTABLES)/aapt$(HOST_EXECUTABLE_SUFFIX)
288AIDL := $(HOST_OUT_EXECUTABLES)/aidl$(HOST_EXECUTABLE_SUFFIX)
289PROTOC := $(HOST_OUT_EXECUTABLES)/aprotoc$(HOST_EXECUTABLE_SUFFIX)
290SIGNAPK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
291MKBOOTFS := $(HOST_OUT_EXECUTABLES)/mkbootfs$(HOST_EXECUTABLE_SUFFIX)
292MINIGZIP := $(HOST_OUT_EXECUTABLES)/minigzip$(HOST_EXECUTABLE_SUFFIX)
293MKBOOTIMG := $(HOST_OUT_EXECUTABLES)/mkbootimg$(HOST_EXECUTABLE_SUFFIX)
294MKYAFFS2 := $(HOST_OUT_EXECUTABLES)/mkyaffs2image$(HOST_EXECUTABLE_SUFFIX)
295APICHECK := $(HOST_OUT_EXECUTABLES)/apicheck$(HOST_EXECUTABLE_SUFFIX)
296FS_GET_STATS := $(HOST_OUT_EXECUTABLES)/fs_get_stats$(HOST_EXECUTABLE_SUFFIX)
297MKEXT2IMG := $(HOST_OUT_EXECUTABLES)/genext2fs$(HOST_EXECUTABLE_SUFFIX)
298MAKE_EXT4FS := $(HOST_OUT_EXECUTABLES)/make_ext4fs$(HOST_EXECUTABLE_SUFFIX)
299MKEXTUSERIMG := $(HOST_OUT_EXECUTABLES)/mkuserimg.sh
300MKEXT2BOOTIMG := external/genext2fs/mkbootimg_ext2.sh
301SIMG2IMG := $(HOST_OUT_EXECUTABLES)/simg2img$(HOST_EXECUTABLE_SUFFIX)
302E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
303MKTARBALL := build/tools/mktarball.sh
304TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)
305E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
306JARJAR := $(HOST_OUT_JAVA_LIBRARIES)/jarjar.jar
307PROGUARD := external/proguard/bin/proguard.sh
308JAVATAGS := build/tools/java-event-log-tags.py
309LLVM_RS_CC := $(HOST_OUT_EXECUTABLES)/llvm-rs-cc$(HOST_EXECUTABLE_SUFFIX)
310LLVM_RS_LINK := $(HOST_OUT_EXECUTABLES)/llvm-rs-link$(HOST_EXECUTABLE_SUFFIX)
311BCC_COMPAT := $(HOST_OUT_EXECUTABLES)/bcc_compat$(HOST_EXECUTABLE_SUFFIX)
312DEXOPT := $(HOST_OUT_EXECUTABLES)/dexopt$(HOST_EXECUTABLE_SUFFIX)
313DEXPREOPT := dalvik/tools/dex-preopt
314LINT := prebuilts/sdk/tools/lint
315
316# ACP is always for the build OS, not for the host OS
317ACP := $(BUILD_OUT_EXECUTABLES)/acp$(BUILD_EXECUTABLE_SUFFIX)
318
319# dx is java behind a shell script; no .exe necessary.
320DX := $(HOST_OUT_EXECUTABLES)/dx
321ZIPALIGN := $(HOST_OUT_EXECUTABLES)/zipalign$(HOST_EXECUTABLE_SUFFIX)
322FINDBUGS := prebuilt/common/findbugs/bin/findbugs
323EMMA_JAR := external/emma/lib/emma$(COMMON_JAVA_PACKAGE_SUFFIX)
324
325# Deal with archaic version of bison on Mac OS X.
326ifeq ($(filter 1.28,$(shell $(YACC) -V)),)
327YACC_HEADER_SUFFIX:= .hpp
328else
329YACC_HEADER_SUFFIX:= .cpp.h
330endif
331
332# Don't use column under Windows, cygwin or not
333ifeq ($(HOST_OS),windows)
334COLUMN:= cat
335else
336COLUMN:= column
337endif
338
339OLD_FLEX := prebuilts/misc/$(HOST_PREBUILT_TAG)/flex/flex-2.5.4a$(HOST_EXECUTABLE_SUFFIX)
340
341ifeq ($(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
346HOST_JDK_TOOLS_JAR :=
347else
348HOST_JDK_TOOLS_JAR:= $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
349ifeq ($(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)
352endif
353endif
354
355# Is the host JDK 64-bit version?
356HOST_JDK_IS_64BIT_VERSION :=
357ifneq ($(filter 64-Bit, $(shell java -version 2>&1)),)
358HOST_JDK_IS_64BIT_VERSION := true
359endif
360
361# It's called md5 on Mac OS and md5sum on Linux
362ifeq ($(HOST_OS),darwin)
363MD5SUM:=md5 -q
364else
365MD5SUM:=md5sum
366endif
367
368APICHECK_CLASSPATH := $(HOST_JDK_TOOLS_JAR)
369APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
370APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/jsilver$(COMMON_JAVA_PACKAGE_SUFFIX)
371APICHECK_COMMAND := $(APICHECK) -JXmx1024m -J"classpath $(APICHECK_CLASSPATH)"
372
373# The default key if not set as LOCAL_CERTIFICATE
374ifdef PRODUCT_DEFAULT_DEV_CERTIFICATE
375  DEFAULT_SYSTEM_DEV_CERTIFICATE := $(PRODUCT_DEFAULT_DEV_CERTIFICATE)
376else
377  DEFAULT_SYSTEM_DEV_CERTIFICATE := build/target/product/security/testkey
378endif
379
380# ###############################################################
381# Set up final options.
382# ###############################################################
383
384HOST_GLOBAL_CFLAGS += $(COMMON_GLOBAL_CFLAGS)
385HOST_RELEASE_CFLAGS += $(COMMON_RELEASE_CFLAGS)
386
387HOST_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
388HOST_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
389
390TARGET_GLOBAL_CFLAGS += $(COMMON_GLOBAL_CFLAGS)
391TARGET_RELEASE_CFLAGS += $(COMMON_RELEASE_CFLAGS)
392
393TARGET_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
394TARGET_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
395
396HOST_GLOBAL_LD_DIRS += -L$(HOST_OUT_INTERMEDIATE_LIBRARIES)
397TARGET_GLOBAL_LD_DIRS += -L$(TARGET_OUT_INTERMEDIATE_LIBRARIES)
398
399HOST_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $(HOST_OUT_HEADERS)
400TARGET_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.
407TARGET_GLOBAL_CFLAGS += $(TARGET_ERROR_FLAGS)
408TARGET_GLOBAL_CPPFLAGS += $(TARGET_ERROR_FLAGS)
409
410HOST_GLOBAL_CFLAGS += $(HOST_RELEASE_CFLAGS)
411HOST_GLOBAL_CPPFLAGS += $(HOST_RELEASE_CPPFLAGS)
412
413TARGET_GLOBAL_CFLAGS += $(TARGET_RELEASE_CFLAGS)
414TARGET_GLOBAL_CPPFLAGS += $(TARGET_RELEASE_CPPFLAGS)
415
416# define llvm tools and global flags
417include $(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
424HISTORICAL_SDK_VERSIONS_ROOT := $(TOPDIR)prebuilts/sdk
425HISTORICAL_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# $(1): the list of numbers to be sorted
436define numerically_sort
437$(shell function sgrax() { \
438    while [ -n "$$1" ] ; do echo $$1 ; shift ; done \
439    } ; \
440    ( sgrax $(1) | sort -g ) )
441endef
442
443TARGET_AVAILABLE_SDK_VERSIONS := $(call numerically_sort,\
444    $(patsubst $(HISTORICAL_SDK_VERSIONS_ROOT)/%/android.jar,%, \
445    $(wildcard $(HISTORICAL_SDK_VERSIONS_ROOT)/*/android.jar)))
446
447INTERNAL_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
451TARGET_PREBUILT_TAG := android-$(TARGET_ARCH)
452
453include $(BUILD_SYSTEM)/dumpvar.mk
454