CANNOT LINK EXECUTABLE

[Ngo Van Luyen]

Hi all,

I copied my app and a shared lib to( Emulator)/data/

But when launching my app on emulator (and via adb) I got a message :

link_image[1995]: failed to link /data/mp4client

CANNOT LINK EXECUTABLE

What is the error?

Thanks,

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Hello Android!

http://androidcore.com/

[David Turner]

On Fri, Jul 30, 2010 at 5:00 AM, Ngo Van Luyen <nvlu...@gmail.com> wrote:

Hi all,

I copied my app and a shared lib to( Emulator)/data/

did you copy that manually ? what did you do exactly to generate the shared lib, the application and install it on the emulator ?

 

But when launching my app on emulator (and via adb) I got a message :

how do you launch it exactly (e.g. through "am" ?) 

link_image[1995]: failed to link /data/mp4client

CANNOT LINK EXECUTABLE

it looks like "mp4client" is not a valid executable. I suspect you didn't generate it with the NDK, and used a broken cross-compiler instead.

What is the error?

Thanks,

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Hello Android!

http://androidcore.com/

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[Ngo Van Luyen]

Hi,

I'm using official NDK to build them.

I have 2 project, one for lib and one for app. Everything was built ok, (at least there is no error). Both lib and app was built using NDK, they are c/c++ code.

I used adb push to copy files to /data/

Then use adb shell /data/mp4client to execute it. I tried also just simply type /data/mp4client on emulator's terminal.

thanks,

2010/7/30 David Turner <di...@android.com>

[David Turner]

On Fri, Jul 30, 2010 at 11:00 AM, Ngo Van Luyen <nvlu...@gmail.com> wrote:

Hi,

I'm using official NDK to build them.

I have 2 project, one for lib and one for app. Everything was built ok, (at least there is no error). Both lib and app was built using NDK, they are c/c++ code.

ok, you're not building an application, just a standalone executable, that's very different.

 

I used adb push to copy files to /data/

ok, did you change its mode to executable before that ? i.e: adb shell chmod 0755 /data/mp4client

[David Turner]

On Fri, Jul 30, 2010 at 11:00 AM, Ngo Van Luyen <nvlu...@gmail.com> wrote:

Hi,

I'm using official NDK to build them.

I have 2 project, one for lib and one for app. Everything was built ok, (at least there is no error). Both lib and app was built using NDK, they are c/c++ code.

I used adb push to copy files to /data/

let me guess, you're copying both a shared library and an executable, and you want the executable to dynamically link to the shared library  when you start it ?

that will probably not work unless you set LD_LIBRARY_PATH to include /data before that.

[Ngo Van Luyen]

You are right, I used adb push to copy both of them. I will try with your suggestion.

Thanks,