使用Android NDK链接C ++静态库错误（错误：文件格式无法识别） [英] Error in linking C++ static library with android ndk(Error: file format not recognized)

问题描述

我想包括在Android的静态CPP库。这个库已经编译（在Mac OS ）和我有它包含文件。

I am trying to include static cpp library in android. This library is already compiled(on mac os) and i have its include files.

下面是我的 Android.mk 文件

LOCAL_PATH := $(call my-dir)
 include $(call all-subdir-makefiles)
    include $(CLEAR_VARS) 
    LOCAL_MODULE:= utils 
    LOCAL_SRC_FILES:= libUtils.a 
    LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/utils 
    include $(PREBUILT_STATIC_LIBRARY) 

    include $(CLEAR_VARS) 
    LOCAL_MODULE := sample 
    LOCAL_SRC_FILES := sample_cpp.cpp 
    LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH) 
    LOCAL_STATIC_LIBRARIES :=  utils
    LOCAL_LDLIBS    := -llog 
    include $(BUILD_SHARED_LIBRARY)

和这里是 Application.mk 文件

APP_STL := stlport_static
APP_CPPFLAGS = -fexceptions  

不过一旦尝试使用NDK我得到的错误编译

but whenever it try to compile it using NDK i get the error

（文件的路径）/libUtils.a：文件无法识别：文件格式无法识别
collect2：劳工处返回1退出状态

推荐答案

从意见等这听起来像你想使用图书馆的非ARM版。你应该建立一个与NDK库。该文件对如何做到这一点，甚至文档。

From the comments and so on it sounds like you trying to use a non arm version of the library. You should build the library with the ndk. The documentation has even documentation on how to do that.

例如建筑sigc ++也能像（从我的一个项目，其中sigc ++驻留在sigc ++子目录）

For example building sigc++ could be like (from a project of mine, where sigc++ resides in the sigc++ subdirectory)

# SIGC++ Library built as static library
LOCAL_MODULE := sigc
LOCAL_PATH = $(CURRENT_DIR)
LOCAL_CPP_EXTENSION := .cc

LOCAL_SRC_FILES :=    sigc++/signal.cc       sigc++/signal_base.cc  sigc++/trackable.cc 
LOCAL_SRC_FILES +=    sigc++/functors/slot_base.cc  sigc++/adaptors/lambda/lambda.cc 
LOCAL_SRC_FILES += sigc++/connection.cc sigc++/functors/slot.cc

LOCAL_C_INCLUDES := sigc++

include $(BUILD_STATIC_LIBRARY)

但你真的应该阅读编译链接是如何工作。恐怕建设的Andr​​oid NDK具有更低水平比使用X code或MSVC。

But you should really read how the compiling linking works. I am afraid building for android with ndk is more low level than using Xcode or Msvc.

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