1.2. General Setup

Most of the tools are available only in 'sdk' images or in images built after adding 'tools-profile' to your local.conf. So, in order to be able to access all of the tools described here, please first build and boot an 'sdk' image e.g.

     $ bitbake core-image-sato-sdk
            

or alternatively by adding 'tools-profile' to the EXTRA_IMAGE_FEATURES line in your local.conf:

      EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile"
            

If you use the 'tools-profile' method, you don't need to build an sdk image - the tracing and profiling tools will be included in non-sdk images as well e.g.:

     $ bitbake core-image-sato
            

Note

By default, the Yocto build system strips symbols from the binaries it packages, which makes it difficult to use some of the tools.

You can prevent that by putting the following in your local.conf when you build the image:

     INHIBIT_PACKAGE_STRIP = "1"
            

The above setting will noticeably increase the size of your image.

If you've already build a stripped image, you can generate debug packages (xxx-dbg) which you can manually install as needed.

To generate debug info for packages, you can add dbg-pkgs to EXTRA_IMAGE_FEATURES in local.conf. For example:

     EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile dbg-pkgs"
            

Additionally, in order to generate the right type of debuginfo, we also need to add the following to local.conf:

     PACKAGE_DEBUG_SPLIT_STYLE = 'debug-file-directory'