Did you copy that file manually? Have you checked the ownership? I assume
that the file owner must be the same that is running the app process.
On Tuesday, February 3, 2015 at 5:50:58 AM UTC-8, SKore wrote:
>
> Hi,
>
> I am checking on permissive and Enforcing mechanism of selinux(SE Linux)
> in Android 5.0. I have placed .so file in
> /data/data/packageName/files/libtestcalc.so.
>
> when the device is in permissive mode,
> System.load("/data/data/packageName/files/libtestcalc.so"); - works fine
> and I am able to access the methods of .so file with out any exceptions.
>
> The same, System.load("/data/data/packageName/files/libtestcalc.so"); is
> not working when the device is in Enforcing mode and I am getting exception
> as follows.
>
> java.lang.UnsatisfiedLinkError: dlopen failed: couldn't map
> "/data/data/packageName/files/libtestcalc.so" segment 1: Permission denied
>
> I guess in both the modes, same call flow will occur. I mean
> System.load(..)->Runtime.getRuntime().load(..)->Runtime.getRuntime(..).doload(..)->Runtime.getRuntime().nativeLoad(..)
>
> @Runtime.java->doLoad(..) documentation mentioned as "nativeLoad should be
> synchronized so there's only one LD_LIBRARY_PATH in use regardless..."
>
> When this LD_LIBRARY_PATH will get updated?
>
> How android is differentiating the load files by modes? Want to know other
> ways to load .so file from "/data/data/packageName/files/".
>
> Regards,
>
> Skore
>
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