These instructions are specific to targets running Android.
Note
You can locate all of the files provided by DS-5 by selecting Help → ARM Extras... from the main menu.
Prepare and build your kernelYou must enable certain kernel configuration options to run Streamline. In the kernel configuration menu, use the arrow keys to navigate to the desired submenu and press Enter. Each submenu is listed with the action you need to take within it.
- General Setup
Make sure the Profiling Support option is enabled.
- Kernel Hacking
In the Kernel Hacking submenu, navigate to the Tracers submenu and press Enter. Make sure the Trace process context switches option is enabled.
- Kernel
Make sure Profiling Support is enabled.
- Kernel Features
Make sure the High Resolution Timer Support is enabled. Enable Use local timer interrupts if you are using a Symmetric MultiProcessing (SMP) target.
If these options are not set correctly, you must change them and rebuild your kernel. If they are set correctly, you are ready to build and install the gator driver.
To enable profiling, you must load the gator daemon on your target. To do this you can either:
Locate the pre-built
.../gator/android/gatordand copy it to your desired directory on the host.Build the gator daemon from the source archive:
Locate the
.../gator/daemon-src/and.../gator/android/directories and copy them to your host to your host.Enter the following command in the
androiddirectory on the target::./setup.sh
To use Streamline with your Android target, you must build
the gator driver, gator.ko, and place it in
the same directory as the gator daemon, gatord,
on the target file system. Transfer the gator driver module sources
from your host to the target. They are located on your host here:
.../gator/driver-src/gator-driver.tar.gz
Assuming that you have unzipped the file and that you have
all of the required tools for building kernel modules, enter the
following command on your target to create the gator.ko module:
make -C kernel_build_dir M=`pwd`
ARCH=arm CROSS_COMPILE=<...> modules
Streamline supports connection to your target using ethernet. Using the Android Debug Bridge (ADB) utility that is part of the Android SDK, it is possible to forward a TCP port from the target to your localhost over a USB connection. ADB can also be configured to work over ethernet.
For more information about the Android SDK and ADB setup, see the Android website.
Once ADB is set up, forward the Streamline port to your localhost using the following command:
adb forward tcp:8080 tcp:8080
Enter the following command to instantiate the gator driver.
insmod gator.ko
Now run gatord on the target:
./gatord &
In the Capture Options dialog box, opened in the ARM Streamline
Data view in Eclipse for DS-5 and enter the ethernet address. If
you use the ADB to forward the port, enter Localhost in the
Address field.
Note
With Android, make sure to add the shared libraries you are interested in profiling to the session using the Program Images section of the Capture Options dialog box.
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