I am trying to use a boost library inside my android application, using the NDK. I have found a couple of success stories here and here, but I can't say the same about me. I am specifically trying to use the library in this link, as well as the boost thread library. In the code below, I am only trying to include the thread library, not the math library. The process I used to build the boost libraries is pretty much the same as the first link I attached.
So far, it seems I have successfully built the boost libraries, but when I run ndk-build, I get the following error:
Prebuilt : libboost_thread.a <= <NDK>/sources/
cp: omitting directory `path/to/ndk/sources/boost'
make: *** [obj/local/armeabi/libboost_thread.a] Error 1
Obviously the cp: omitting directory... is not exactly an error. But the only thing I'm getting other than that is the next line, which doesn't really mean anything. Error 1
Here's my Android.mk file:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_STATIC_LIBRARIES := boost_thread
LOCAL_LDLIBS := lboost_system-gcc-md lboost_thread-gcc-md -lgnustl_static
LOCAL_LDLIBS += lboost_system-gcc-md lboost_thread-gcc-md \
-L$(NDK_ROOT)/sources/cxx-stl/gnu-libstdc++/libs/armeabi \
-lgnustl_static
LOCAL_SRC_FILES := #cpp_sources
LOCAL_MODULE := com_example_ndkFile_CppMethods
include $(BUILD_SHARED_LIBRARY)
$(call import-module,boost)
And there's also an Android.mk file in path/to/ndk/sources/boost/:
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= boost_thread
LOCAL_SRC_FILES:= android/lib/libboost_thread.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)
include $(PREBUILT_STATIC_LIBRARY)
And my humble Application.mk file:
APP_ABI := armeabi armeabi-v7a
APP_STL := gnustl_static
APP_CPPFLAGS = -fexceptions
I built the boost libraries using bjam. All of the libboost_###.a files are in the sources/boost/android/lib folder.
What is the error I'm getting?
I built the boost libraries using Boost-for-Android. Then I have in my boost/include/lib directory the android makefile boost.mk
LOCAL_PATH := $(call my-dir)
# boost_date_time
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_date_time
LOCAL_SRC_FILES := libboost_date_time-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
# boost_filesystem
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_filesystem
LOCAL_SRC_FILES := libboost_filesystem-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
# boost_thread
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_thread
LOCAL_SRC_FILES := libboost_thread-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
# boost_system
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_system
LOCAL_SRC_FILES := libboost_system-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
# boost_program_options
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_program_options
LOCAL_SRC_FILES := libboost_program_options-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
# boost_chrono
#
include $(CLEAR_VARS)
LOCAL_MODULE := boost_chrono
LOCAL_SRC_FILES := libboost_chrono-gcc-mt-1_53.a
include $(PREBUILT_STATIC_LIBRARY)
and my module where i use some of the boost libraries looks like this
LOCAL_PATH := $(call my-dir)
# SignalServer, executable
#
include $(CLEAR_VARS)
LOCAL_CFLAGS := -DTIXML_USE_TICPP
#LOCAL_CFLAGS += -DDEBUG
LOCAL_STATIC_LIBRARIES := boost_thread \
boost_system \
boost_filesystem \
boost_program_options \
boost_chrono \
LOCAL_STATIC_LIBRARIES += ticpp \
tia \
tobicore \
tobiid \
tid \
gdf
LOCAL_MODULE := signalserver
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_C_INCLUDES += $(LOCAL_PATH)/extern/include
LOCAL_C_INCLUDES += $(LOCAL_PATH)/../boost/include/boost-1_53
LOCAL_SRC_FILES := #cpp source
include $(BUILD_EXECUTABLE)
in addition I have an Android.mk where all subdir makefiles are listed
TOP_PATH := $(call my-dir)
include $(TOP_PATH)/boost/lib/boost.mk
include $(TOP_PATH)/signalserver/signalserver.mk
.
.
and my Application.mk:
APP_PLATFORM := android-14
APP_ABI := armeabi-v7a
#APP_OPTIM := debug
#NDK_DEBUG := 1
NDK_TOOLCHAIN_VERSION := 4.6
APP_STL := gnustl_static
APP_CPPFLAGS := -fexceptions -frtti
Here: http://silverglint.com/boost-for-android/ you can find a simple script that lets you build a modern version of boost for android, or simply download prebuilt boost binaries.
Also included is a sample test app that shows you how to include/link the boost headers/binaries
Related
Application.mk
APP_STL := gnustl_static
APP_ABI := all
Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := libz
LOCAL_SRC_FILES := ../prebuild/libz.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include/
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libssl
LOCAL_SRC_FILES := ../prebuild/libssl.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libcrypto
LOCAL_SRC_FILES := ../prebuild/libcrypto.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libjson-c
LOCAL_SRC_FILES := ../prebuild/libjson-c.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libcurl
LOCAL_SRC_FILES := ../prebuild/include/libcurlall/$(TARGET_ARCH_ABI)/libcurl.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := curl-ndk
LOCAL_SRC_FILES := ../cpp/curl-http.cpp
LOCAL_STATIC_LIBRARIES := libcurl libssl libcrypto libz libjson-c
LOCAL_LDLIBS := -lz -llog -ljnigraphics
include $(BUILD_SHARED_LIBRARY)
clean project and I'm trying to cross compile NDK then show given below error:
/Volumes/Work/Android/Projects/app/src/main/jni/../prebuild/libz.a: error adding symbols: File in wrong format
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [/Volumes/Work/Android/Projects/app/src/main/obj/local/arm64-v8a/libcurl-ndk.so] Error 1
Its working on 32 bits fine but 64 bit its show error
Thanks in advance
You're using one prebuilt for all ABIs. You need one prebuilt for each ABI you target. The typical way to write a prebuilt module is like this:
include $(CLEAR_VARS)
LOCAL_MODULE := libz
LOCAL_SRC_FILES := ../prebuild/$(TARGET_ARCH_ABI)/libz.a
LOCAL_EXPORT_C_INCLUDES := ../prebuild/include/
include $(PREBUILT_STATIC_LIBRARY)
Then you can have prebuild/armeabi-v7a/libz.a, prebuild/arm64-v8a/libz.a, etc. Disable ABIs you don't want to build for (or don't have prebuilts for) using APP_ABI in your Application.mk.
so I'm relatively new to Android-NDK and trying to add an uncompiled c-library to android.
I've downloaded the library's source from here and followed these instructions to create a static library (.a-File) from the downloaded files using ndk-build.
So now I have a folder-structure that looks like this:
-srtp
--include (srtp.h, crypto.h)
--srtp (srtp.c...)
--obj
---local
----armeabi
-----libsrtp_static.a
In my Android-project I want to include srtp.h in a c-file inside my /jni/ folder. I've tried to just add the .a-file to the /jni folder but than it says "srtp.h no such file or direcotry". If I add the entire srtp-folder to the project and include the header with "srtp/include/srtp.h" it compiles but fails to link the source as I get the error "Undefined reference to srtp-function-call"
Here's my Android.mk (parts of it copied from Android.mk within the downloaded source):
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_LDLIBS := -llog
LOCAL_MODULE := ndk1 #name of my project
LOCAL_SRC_FILES := native.c #name of the c-source file
include $(BUILD_SHARED_LIBRARY)
LOCAL_PATH:= /home/dev/programing/srtp
common_SRC_FILES := \
srtp/srtp.c \
srtp/ekt.c \
crypto/cipher/cipher.c \
#...more files like that
common_CFLAGS := \
-DPOSIX -iquote$(LOCAL_PATH)/crypto/include \
-Werror \
-Wno-ignored-qualifiers \
-Wno-sign-compare \
-Wno-missing-field-initializers
common_C_INCLUDES = $(LOCAL_PATH)/include
# For the device
# =====================================================
# Device static library
include $(CLEAR_VARS)
ifneq ($(TARGET_ARCH),x86)
LOCAL_NDK_VERSION := 5
LOCAL_SDK_VERSION := 9
endif
LOCAL_SRC_FILES := libsrtp_static.a
LOCAL_CFLAGS += $(common_CFLAGS)
LOCAL_C_INCLUDES += /home/dev/programing/srtp/include
LOCAL_MODULE:= libsrtp_static
LOCAL_MODULE_TAGS := optional
include $(BUILD_STATIC_LIBRARY)
Any help is greatly appreciated! Thank you very much.
You need to add the reference to libsrtp_static from your lib (ndk1) declaration :
LOCAL_STATIC_LIBRARIES := libsrtp_static
Also, you don't need to copy all the strp sources to your project, only add this to your static prebuilt library definition
LOCAL_EXPORT_C_INCLUDES += /home/dev/programing/srtp/include
This path will then be automatically added to the LOCAL_C_INCLUDES of your library that is using the library.
Are you building libsrtp or just using a prebuilt static library ? If you're using a prebuilt (lib*.a), replace BUILD_STATIC_LIBRARY with PREBUILT_STATIC_LIBRARY and set only the .a as SRC_FILE:
In summary, once libstrp_static.a is built, this should work:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_LDLIBS := -llog
LOCAL_MODULE := ndk1 #name of my project
LOCAL_SRC_FILES := native.c #name of the c-source file
LOCAL_STATIC_LIBRARIES := libsrtp_static
include $(BUILD_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := /home/dev/programing/srtp/libsrtp_static.a #check path to libsrtp_static.a
LOCAL_EXPORT_C_INCLUDES += /home/dev/programing/srtp/include
LOCAL_MODULE:= libsrtp_static
LOCAL_MODULE_TAGS := optional
include $(BUILD_STATIC_LIBRARY)
I have an Android application project that depends on two native libraries, libA and libB. libA depends on libB, and both libraries are built using APP_STL:=gnustl_shared. The problem then arises when trying to build the APK:
[2014-09-30 14:31:47 - Appname] Error generating final archive: Found duplicate file for APK: lib/armeabi/libgnustl_shared.so
Origin 1: /libA/libs/armeabi/libgnustl_shared.so
Origin 2: /libB/libs/armeabi/libgnustl_shared.so
How do I configure these libraries to build/link properly while using a common shared library such as libgnustl_shared.so?
EDIT:
I have tried many alternative makefile settings, so it's hard to know what to post here, but I'll try. Both Application.mk files in libA/jni and libB/jni contain:
APP_STL := gnustl_shared
APP_OPTIM := release
APP_ABI := armeabi-v7a armeabi
APP_PLATFORM := android-15
In libA/jni, the Android.mk file contains:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := MyBase
LOCAL_SRC_FILES := libs/$(TARGET_ARCH_ABI)/libMyBase.so
LOCAL_PRELINK_MODULE := true
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := Base
LOCAL_SRC_FILES := Base.cpp
LOCAL_C_INCLUDES := ../../../../LIBS/MyBase/pub/include
LOCAL_LDLIBS := -llog -ljnigraphics
LOCAL_SHARED_LIBRARIES := MyBase
LOCAL_CPP_FEATURES += rtti
LOCAL_CPP_FEATURES += exceptions
include $(BUILD_SHARED_LIBRARY)
In libB/jni, the Android.mk file contains:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := MyMedia
LOCAL_SRC_FILES := libs/$(TARGET_ARCH_ABI)/libMyMedia.so
LOCAL_PRELINK_MODULE := true
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := Media
LOCAL_SRC_FILES := Media.cpp media_jni.cpp
LOCAL_C_INCLUDES := ../../../../LIBS/MyBase/pub/include \
../../../../LIBS/MyMedia/pub/include
LOCAL_LDLIBS := -llog -ljnigraphics
LOCAL_SHARED_LIBRARIES := MyBase MyMedia
LOCAL_CPP_FEATURES += rtti
LOCAL_CPP_FEATURES += exceptions
include $(BUILD_SHARED_LIBRARY)
$(call import-module,LIBS/MyBase/jni)
MyBase and MyMedia are two native libraries written in C++ and are not Java/JNI aware. MyMedia is dependent on MyBase. Both libraries are dependent on a robust C++ library such as gnustl_shared.
As specified in this answer, I downloaded libjpeg 8d from github and placed it in a folder {ANDROID_APP}/jni/libjpeg. This library has it's own Android.mk, so I tried to include it at the end of my {ANDROID_APP}/jni/Android.mk this way :
include $(LOCAL_PATH)/libjpeg/Android.mk
Note : I'm using the latest version of android NDK (r8c)
After running ndk-build, I still get this error :
ANDROID_APP/jni/libfoo/foo_analysis.c:36:21: fatal error: jpeglib.h: No such file or directory
This is the structure of my global Android.mk :
LOCAL_PATH := $(call my-dir)
# libFoo
include $(CLEAR_VARS)
LOCAL_MODULE := libfoo
LOCAL_MODULE_FILENAME := libfoo
LOCAL_SRC_FILES := libfoo/foo.c libfoo/foo_analysis.c libfoo/foo_extract.c
LOCAL_STATIC_LIBRARIES := libbmp # declared previously but not shown in this example
LOCAL_CFLAGS = ${FLAGS}
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/libfoo
LOCAL_EXPORT_LDLIBS := -llog
include $(BUILD_STATIC_LIBRARY)
# libBar
include $(CLEAR_VARS)
LOCAL_MODULE := libbar
LOCAL_MODULE_FILENAME := libbar
LOCAL_SRC_FILES := bar/bar.c
LOCAL_STATIC_LIBRARIES := libfoo
LOCAL_CFLAGS = ${FLAGS}
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/bar
LOCAL_EXPORT_LDLIBS := -llog
include $(BUILD_STATIC_LIBRARY)
# callbar
LOCAL_MODULE := libcallbar
LOCAL_MODULE_FILENAME := libcallbar
LOCAL_SRC_FILES := com_androidapp_nativeC_callbar.c
LOCAL_STATIC_LIBRARIES := libbar
LOCAL_CFLAGS = ${FLAGS}
include $(BUILD_SHARED_LIBRARY)
#libjpeg
include $(LOCAL_PATH)/libjpeg/Android.mk
I tried to use LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/libfoo $(LOCAL_PATH)/libjpeg
and LOCAL_C_INCLUDES := $(LOCAL_PATH)/libjpeg in the libFoo module, but I still get the same error.
Just looked at Android.mk in jpeg8d-master folder and seems to be it has nothing.
I was trying to compile library directly according to STANDALONE-TOOLCHAIN.HTML
I do next: $export NDKROOT=/home/alex/tools/android-ndk-r8c (where is your NDK) $export SYSROOT=$NDKROOT/platforms/android-9/arch-arm (or any other android platform)
but files from jpeg8d-master have windows \r symbols and I deleted config.guess, config.sub, depcomp than use $automake -a command. And replace ltmain.sh from glib-2.34.0
than $./configure CC="$NDKROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=$SYSROOT" --host=arm-linux-androideabi $make
next try prebuilts feature NDK - How to use a generated .so library in another project and NDK/PREBUILTS.HTML
I have three static libraries from a framework that I want to use in my project. These libraries are called libtinySAK_armv7-a.a, libtinyNET_armv7-a.a and libtinyHTTP_armv7-a.a. I have placed them in the same folder as the Android.mkandApplication.mk.
My native code is dependent on them so I want to include them in my shared library.
From what I've read on stackoverflow and google'd I believe the android.mk is supposed to look something like this:
# TINYSAK
include $(CLEAR_VARS)
LOCAL_MODULE := tinySAK
LOCAL_SRC_FILES := libtinySAK_armv7-a.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../doubango/tinySAK/src/
include $(PREBUILT_STATIC_LIBRARY)
# TINYNET
include $(CLEAR_VARS)
LOCAL_MODULE := tinyNET
LOCAL_SRC_FILES := libtinyNET_armv7-a.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../doubango/tinyNET/src/
include $(PREBUILT_STATIC_LIBRARY)
# TINYHTTP
include $(CLEAR_VARS)
LOCAL_MODULE := tinyHTTP
LOCAL_SRC_FILES := libtinyHTTP_armv7-a.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../doubango/tinyHTTP/include/
include $(PREBUILT_STATIC_LIBRARY)
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := libtest
LOCAL_SRC_FILES := \
../../test/stack.cpp \
../../test/main.cpp
LOCAL_C_INCLUDES := \
$(LOCAL_PATH)/../../test/include/ \
$(LOCAL_PATH)/../../../doubango/tinyHTTP/include/ \
$(LOCAL_PATH)/../../../doubango/tinySAK/src/ \
$(LOCAL_PATH)/../../../doubango/tinyNET/src/
LOCAL_STATIC_LIBRARIES := \
tinySAK \
tinyNET \
tinyHTTP
include $(BUILD_SHARED_LIBRARY)
My Application.mk:
APP_STL := stlport_static
APP_ABI := armeabi-v7a
The error I get upon compilation("ndk-build" from project dir) is
jni/Android.mk:tinySAK: LOCAL_SRC_FILES points to a missing file
And I suppose the other 2 libraries also fail. Why cannot it find them?
Besides that, is there any other errors I've made in the makefile?
Thanks
Nevermind, I solved it.
I declared the "LOCAL_PATH" in the beginning of the make-file only. Otherwise it would look for the libs in the ndk-folders.
Try LOCAL_LDLIBS instead of LOCAL_SRC_FILES.