-The following instructions should work at least for Android Ice Scream
-Sandwitch.
-
-To trace applications started from within the Android VM process
-(`app_process` aka zygote) you'll have to wrap this process and enable
-tracing dynamically for the application to be traced.
-
-- Wrapping the android main VM process:
-
- In the Android root /init.rc add the `LD_PRELOAD` setting to zygote's
- environment in the 'service zygote' section:
-
- service zygote ...
- setenv LD_PRELOAD /data/egltrace.so
- ...
-
- Note that ICS will overwrite the /init.rc during each boot with the
- version in the recovery image. So you'll have to change the file in
- your ICS source tree, rebuild and reflash the device.
- Rebuilding/reflashing only the recovery image should be sufficient.
-
-- Copy egltrace.so to /data
-
- On the host:
-
- adb push /path/to/apitrace/build/wrappers/egltrace.so /data
-
-- Adjust file permissions to store the trace file:
-
- By default egltrace.so will store the trace in
- `/data/app_process.trace`. For this to work for applications running
- with a uid other than 0, you have to allow writes to the `/data`
- directory on the device:
-
- chmod 0777 /data
-
-- Enable tracing for a specific process name:
-
- To trace for example the Settings application:
-
- setprop debug.apitrace.procname com.android.settings
-
- In general this name will match what `ps` reports.
-
-- Start the application:
-
- If the application was already running, for example due to ICS's way
- of pre-starting the apps, you might have to kill the application
- first:
-
- kill <pid of app>
-
- Launch the application for example from the application menu.
-
-To trace standalone applications do:
-
- adb push /path/to/apitrace/build/wrappers/egltrace.so /data
- adb shell
- # cd /data/local/tmp
- # LD_PRELOAD=/data/egltrace.so test-opengl-gl2_basic
- adb pull /data/local/tmp/test-opengl-gl2_basic.trace
- eglretrace test-opengl-gl2_basic.trace