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Enabling atrace and ttrace annotations

Arm Streamline supports atrace annotations on Android targets that are running Linux kernel versions 3.10 and later, and ttrace annotations on targets that are running Tizen version 2.4.

Arm Streamline converts application-generated atrace macros into either string annotations or counter charts. It also lists any Android ATRACE_TAG_* macros that you enable as available events in an Atrace section in the Counter Configuration dialog. If you expect to see atrace events in this dialog but none are displayed, click on the Warnings tag in the Counter Configuration dialog to see why atrace support is not enabled.

To notify running applications that atrace annotation tags have been enabled, the file notify.dex must be installed on the target in the same directory as gatord. You can install a pre-built version of notify.dex as part of target setup, by clicking the Setup target... button in the Connection Browser dialog. The Java source code for notify.dex is available in the following locations:

To enable Tizen ttrace annotations:

  • Specify the path to SDB in the ADB Path field in the dialog at Window > Preferences > Streamline > External Tools.
  • Select a target Tizen device, with gator running on it, using the Connection Browser dialog.
  • Select the ttrace events to capture from the Ttrace section in the Counter Configuration dialog.

Arm Streamline displays the ttrace tags as annotations in the Timeline view and Log view.