.so has text relocations. This is wasting memory and prevents security hardening. Please fix.

转载请标明出处：http://blog.csdn.net/xx326664162/article/details/52926274 文章出自：薛瑄的博客

你也可以查看我的其他同类文章，也会让你有一定的收货

首先说明出现下面这个错误的原因可能有很多，你也可以直接看下面的分析，来判断是不是和我一样的问题

介绍一下，在下面的环境中，解决这个问题使用的解决方法。

测试环境：

Galaxy Note3 Android 5.0

Android studio 2.2.2

gradle-2.14.1-all

NDK版本如下图：

项目的build.gradle如下：

android {
compileSdkVersion 24
buildToolsVersion "24.0.3"

defaultConfig {
applicationId "com.firs.facedetecttosvr"
minSdkVersion 19
targetSdkVersion 21

ndk {
moduleName "libface_identify"
abiFilters 'armeabi', 'armeabi-v7a'
}
}
...（部分省略）
externalNativeBuild {
ndkBuild {
path 'src/main/jni/Android.mk'
}
}
}

Android.mk配置如下

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := facetemp
LOCAL_SRC_FILES := libFiFacial.a
include $(PREBUILT_STATIC_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := jpegtemp
LOCAL_SRC_FILES := libjpeg.so
include $(PREBUILT_SHARED_LIBRARY)

include $(CLEAR_VARS)
#LOCAL_SRC_TCP  := ./tcpSock/maintcp.cpp ./tcpSock/CommLayerTcp.cpp ./tcpSock/NetAuth.cpp ./tcpSock/NetDeal.cpp ./tcpSock/NetPublic.cpp
#LOCAL_SRC_TCP  := maintcp.cpp CommLayerTcp.cpp NetAuth.cpp NetDeal.cpp NetPublic.cpp

LOCAL_MODULE    := libface_identify
LOCAL_SRC_FILES := facelib.cpp public.cpp  maintcp.cpp CommLayerTcp.cpp NetAuth.cpp NetDeal.cpp NetPublic.cpp gb2312.cpp
#LOCAL_MODULE_FILENAME = libface_identify
LOCAL_SHARED_LIBRARIES := jpegtemp
LOCAL_STATIC_LIBRARIES := facetemp
LOCAL_LDLIBS := -llog -lstdc++
include $(BUILD_SHARED_LIBRARY)

java代码调用so库的代码

static {
// System.loadLibrary("stlport_shared");
// System.loadLibrary("jpeg");
System.loadLibrary("face_identify");
}

出现下面这个错误的原因可能有很多，接下来介绍一下，在上面的环境下，解决这个问题使用的解决方法。

崩溃时的logcat

10-25 19:12:49.217 23377-23377/? I/art: Late-enabling -Xcheck:jni
10-25 19:12:49.587 23377-23377/com.firs.facedetecttosvr W/linker: /data/app/com.firs.facedetecttosvr-2/lib/arm/libjpeg.so has text relocations. This is wasting memory and prevents security hardening. Please fix.
10-25 19:12:49.593 23377-23377/com.firs.facedetecttosvr D/Face_Identify: login in username[test] pwd[123456] nLen[68]
10-25 19:12:49.593 23377-23377/com.firs.facedetecttosvr D/Face_Identify: send packType[1] msgtype[256] subTyep[1]
10-25 19:12:49.601 23377-23377/com.firs.facedetecttosvr D/Face_Identify:  xxxxxxxxxxxxx(10); Client moudle quit StartNetModule 64
10-25 19:12:49.602 23377-23377/com.firs.facedetecttosvr D/Face_Identify:  3333333333(10); Client moudle quit StartNetModule 70
10-25 19:12:49.602 23377-23377/com.firs.facedetecttosvr D/Face_Identify:  88888888888sleep(10); Client moudle quit StartNetModule 72
10-25 19:12:49.608 23377-23413/com.firs.facedetecttosvr D/Face_Identify: iCliePort[32108]  acClieIp[116.205.1.86]CreateTcpClient 478
10-25 19:12:49.620 23377-23416/com.firs.facedetecttosvr D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
10-25 19:12:49.628 23377-23377/com.firs.facedetecttosvr D/ActivityThreadInjector: clearCachedDrawables.
10-25 19:12:49.634 23377-23416/com.firs.facedetecttosvr I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: EGL 1.4 QUALCOMM build: Nondeterministic_AU_msm8974_LA.BF.1.1.3_RB1__release_AU (I741a3d36ca)
OpenGL ES Shader Compiler Version: E031.29.00.00
Build Date: 04/04/16 Mon
Local Branch: mybranch19053788
Remote Branch: quic/LA.BF.1.1.3_rb1.12
Local Patches: NONE
Reconstruct Branch: NOTHING
10-25 19:12:49.645 23377-23416/com.firs.facedetecttosvr I/OpenGLRenderer: Initialized EGL, version 1.4
10-25 19:12:49.700 23377-23413/com.firs.facedetecttosvr D/Face_Identify: login in username[test] pwd[123456] nLen[68]
10-25 19:12:49.700 23377-23413/com.firs.facedetecttosvr D/Face_Identify: send packType[1] msgtype[256] subTyep[1]
10-25 19:12:49.700 23377-23414/com.firs.facedetecttosvr D/Face_Identify: TmpStrData.iFd[23] SNEDLEN[90] DoTcpSendThreadPool 736
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: 000100
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: packType 1 msgtype 256 subType 2 DoTcpClient 407
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: InStrProPack.head.index 65000 InStrProPack.head.dataLen 584 DoTcpClient 412
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: sizeof(InStrProPack.head)[19]
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify:  DoTcpClient 459
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: chksum[1439] recvSum[1439] DoTcpClient 467
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: InStrProPack.csuffix[7f]
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: recv InStrProPack->head.msgtype 256 InStrProPack->head.subType 2 AllDealTcp 682
10-25 19:12:49.803 23377-23413/com.firs.facedetecttosvr D/Face_Identify: DealMsgAuth 145
10-25 19:12:50.599 23377-23377/com.firs.facedetecttosvr I/Timeline: Timeline: Activity_launch_request time:27234823
10-25 19:12:50.985 23377-23377/com.firs.facedetecttosvr D/Face_Identify: InitFaceLib()ghCe: 0xa9f539f0 fun:InitFacial line: 292
10-25 19:12:51.029 23377-23377/com.firs.facedetecttosvr D/Face_Identify: fun:InitFacial line: 299 ghFacialCodec: 0xa9fba180
10-25 19:12:51.029 23377-23377/com.firs.facedetecttosvr D/Face_Identify: DoTcpSendThreadPool Java_com_firs_cn_FaceNative_initFaceLib 357
10-25 19:12:51.043 23377-23377/com.firs.facedetecttosvr D/ActivityThreadInjector: clearCachedDrawables.
10-25 19:12:51.377 23377-23416/com.firs.facedetecttosvr V/RenderScript: 0xaeac8000 Launching thread(s), CPUs 4
10-25 19:12:51.613 23377-23450/com.firs.facedetecttosvr A/libc: Fatal signal 11 (SIGSEGV), code 2, fault addr 0xaebc4000 in tid 23450 (AsyncTask #1)

分析

关键代码：

@Override
protected void onResume() {
super.onResume();
//initCamera(); // 初始化摄像头得到width和height的值
surfaceCreated(surfaceHolder);//设置目标界面
//创建异步任务，必须传送非零的width和height
mTask = new RecognizeTask(width, height, isFront);//异步操作   摄像头可用240  320  true
mTask.setRecognizeListener(this);//重写接口方法
mTask.execute(0);
}

我改动了一些java代码，导致出现了这个错误，我还原到改动之前的代码，一点一点去替换，发现是调用ndk时，传入的参数问题导致的，（上面代码的第4行，不应该注释掉，初始化摄像头得到width和height的值，在异步任务中调用jni方法会用到这两个值），但是不知道为什么会报出这个错误，想不出原因。感觉有点误导方向

解决方法：

@Override
protected void onResume() {
super.onResume();
initCamera(); // 初始化摄像头得到width和height的值
surfaceCreated(surfaceHolder);//设置目标界面
//创建异步任务，必须传送非零的width和height
mTask = new RecognizeTask(width, height, isFront);//异步操作   摄像头可用240  320  true
mTask.setRecognizeListener(this);//重写接口方法
mTask.execute(0);
}

虽然示例很有针对性，但是不影响这种解决方法的普遍性，可以当做一种排查方案