Copying gdbserver to the apk to enable native debugging for native_test_apk

Copying gdbserver to the apk to enable native debugging for native_test_apk

BUG=
TEST=


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=145603

[Shouqun Liu, 2012-07-04 08:40:18]

copy gdbserver to the apk in case we need to debug the native_tests
(DumpRenderTree, unit_tests),  thanks for review

[bulach, 2012-07-06 09:38:54]

+digit, he knows all about gdb

[bulach, 2012-07-06 09:59:12]

thanks! I have one question below...

http://codereview.chromium.org/10689102/diff/3001/testing/android/native_test...
File testing/android/native_test_apk.xml (right):

http://codereview.chromium.org/10689102/diff/3001/testing/android/native_test...
testing/android/native_test_apk.xml:72: <echo message="Copying gdbserver to the
apk to enable native debugging"/>
I don't know much about this, but... does it need to be part of each APK? can we
copy it out of band via build/android/test_package_apk.py:StripAndCopyExecutable
(that is, in there we can do a PushIfNeeded to avoid copying it over and over
again..)

[digit1, 2012-07-06 13:17:54]

lgtm

lgtm

For the record, to be able to debug an application on Android, one has to have
the following file:

  $PROJECT_PATH/libs/$ABI/gdbserver

Before calling the ant build command (e.g. 'ant debug')

This will copy the file inside the .apk at:

   ./lib/$ABI/gdbserver

(Notice that it is "lib" instead of "libs" this time).

At install time, the PackageManager will copy the file under
/data/local/<package-name>/lib/gdbserver, and ndk-gdb will launch it through the
"run-as" utility, under the same UID than the application itself (otherwise,
gdbserver would not be able to ptrace/attach to the process).

Unless you're root on the device, there is no other way to debug an application
(and this is done intentionally for security reasons).

[bulach, 2012-07-06 13:45:37]

lgtm then :)

thanks for the clarification, makes sense!

[commit-bot: I haz the power, 2012-07-06 16:21:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/shouqun.liu@intel.com/10689102/3001

[commit-bot: I haz the power, 2012-07-06 17:49:52]

Change committed as 145603