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Android Jni调用so库，加载库失败分析
现有一个项目，通过JNI接口调用底层库，例如：lib***.so
如下所示，总是加载不成功。调试发现，每次加载so库，会跳到catch异常处理部分，然后打印异常log信息。
static{
try{
System.load("/data/data/com.***/lib/lib***.so");
}
catch(UnsatisfiedLinkError ulink){
Log.i("HVnative====","Can not load library");
ulink.printStackTrace();
}
}
用arm-none-linux-gnueabi-ld工具发现有些函数未定义，如下所示：
snowdream@snowdream:~/workspace/$ arm-none-linux-gnueabi-ld lib***.so arm-none-linux-gnueabi-ld: warning: libc.so, needed by lib***.so, not found (try using -rpath or -rpath-link) arm-none-linux-gnueabi-ld: warning: libdvm.so, needed by lib***.so, not found (try using -rpath or -rpath-link) lib***.so: warning: the use of `tmpnam' is dangerous, better use `mkstemp' arm-none-linux-gnueabi-ld: warning: cannot find entry symbol _start; defaulting to 00008248 lib***.so: undefined reference to `__aeabi_fadd' lib***.so: undefined reference to `__aeabi_fdiv' lib***.so: undefined reference to `__aeabi_fcmpge' lib***.so: undefined reference to `__aeabi_dcmpgt' lib***.so: undefined reference to `__aeabi_dcmpeq' lib***.so: undefined reference to `__aeabi_uidiv' lib***.so: undefined reference to `__aeabi_ui2d' lib***.so: undefined reference to `__aeabi_dcmple' lib***.so: undefined reference to `__aeabi_fcmplt' lib***.so: undefined reference to `__aeabi_i2d' lib***.so: undefined reference to `__aeabi_uidivmod' lib***.so: undefined reference to `__aeabi_fmul' lib***.so: undefined reference to `__aeabi_d2uiz' lib***.so: undefined reference to `__aeabi_fcmpeq' lib***.so: undefined reference to `__aeabi_d2iz' lib***.so: undefined reference to `__aeabi_dcmpge' lib***.so: undefined reference to `__aeabi_ldivmod' lib***.so: undefined reference to `__aeabi_d2f' lib***.so: undefined reference to `__aeabi_dmul' lib***.so: undefined reference to `__aeabi_dcmplt' lib***.so: undefined reference to `__aeabi_f2d' lib***.so: undefined reference to `__aeabi_fcmple' lib***.so: undefined reference to `__aeabi_idivmod' lib***.so: undefined reference to `__aeabi_fsub' lib***.so: undefined reference to `__aeabi_ddiv' lib***.so: undefined reference to `__aeabi_ui2f' lib***.so: undefined reference to `__aeabi_i2f' lib***.so: undefined reference to `__aeabi_idiv' lib***.so: undefined reference to `__aeabi_dadd' lib***.so: undefined reference to `__aeabi_fcmpgt' lib***.so: undefined reference to `__aeabi_dsub' lib***.so: undefined reference to `__aeabi_f2iz'
1、你自己写的函数，那么你应该去检查自己所写的这段代码有何问题，修改之后，再重新编译底层库；
2、系统函数，暂时还没找到合适的解决办法，正在努力寻求方法。
最后更新：2017-04-02 06:51:50