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-
- Examining Builds Using the Toaster API
-
-
- Toaster is an Application Programming Interface (API) and
- web-based interface to the OpenEmbedded build system, which uses
- BitBake.
- Both interfaces are based on a Representational State Transfer
- (REST) API that queries for and returns build information using
- GET and JSON.
- These types of search operations retrieve sets of objects from
- a datastore used to collect build information.
- The results contain all the data for the objects being returned.
- You can order the results of the search by key and the search
- parameters are consistent for all object types.
-
-
-
- Using the interfaces you can do the following:
-
- See information about the tasks executed
- and reused during the build.
- See what is built (recipes and
- packages) and what packages were installed into the final
- image.
- See performance-related information such
- as build time, CPU usage, and disk I/O.
- Examine error, warning and trace messages
- to aid in debugging.
-
-
-
-
- This release of Toaster provides you with information
- about a BitBake run.
- The tool does not allow you to configure and launch a build.
- However, future development includes plans to integrate the
- configuration and build launching capabilities of
- Hob.
-
- For more information on using Hob to build an image,
- see the
- "Image Development Using Hob"
- section.
-
-
-
- The remainder of this section describes what you need to have in
- place to use Toaster, how to start it, use it, and stop it.
- For additional information on installing and running Toaster, see the
- "Installation and Running"
- section of the "Toaster" wiki page.
- For complete information on the API and its search operation
- URI, parameters, and responses, see the
- REST API Contracts
- Wiki page.
-
-
-
- Starting Toaster
-
-
- Getting set up to use and start Toaster is simple.
- First, be sure you have met the following requirements:
-
- You have set up your
- Source Directory
- by cloning the upstream poky
- repository.
- See the
- Yocto Project Release
- item for information on how to set up the Source
- Directory.
- Be sure your build machine has
- Django
- version 1.5 installed.
- Make sure that port 8000 and 8200 are
- free (i.e. they have no servers on them).
-
-
-
-
-
- Once you have met the requirements, follow these steps to
- start Toaster running in the background of your shell:
-
- Set up your build environment:
- Source a build environment script (i.e.
- &OE_INIT_FILE;
- or
- oe-init-build-env-memres).
-
- Start Toaster:
- Start the Toaster service using this
- command from within your
- Build Directory:
-
- $ source toaster start
-
-
- The Toaster must be started and running in order
- for it to collect data.
-
-
-
-
-
- When Toaster starts, it creates some additional files in your
- Build Directory.
- Deleting these files will cause you to lose data or interrupt
- Toaster:
-
- toaster.sqlite:
- Toaster's database file.
- toaster_web.log:
- The log file of the web server.
- toaster_ui.log:
- The log file of the user interface component.
-
- toastermain.pid:
- The PID of the web server.
- toasterui.pid:
- The PID of the DSI data bridge.
- bitbake-cookerdaemon.log:
- The BitBake server's log file.
-
-
-
-
-
- Using Toaster
-
-
- Once Toaster is running, it logs information for any BitBake
- run from your Build Directory.
- This logging is automatic.
- All you need to do is access and use the information.
-
-
-
- You access the information one of two ways:
-
- Open a Browser and enter
- http://localhost:8000
- for the URL.
-
- Use the xdg-open
- tool from the shell and pass it the same URL.
-
-
- Either method opens the home page for the Toaster interface.
-
-
- Notes
-
-
- For information on how to delete information from the
- Toaster database, see the
- Deleting a Build from the Toaster Database
- wiki page.
-
-
- For information on how to set up an instance of Toaster
- on a remote host, see the
- Setting Up a Toaster Instance on a Remote Host
- wiki page.
-
-
-
-
-
-
- Examining Toaster Data
-
-
- The Toaster database is persistent regardless of whether you
- start or stop the service.
-
-
-
- Toaster's interface shows you a list of builds
- (successful and unsuccessful) for which it has data.
- You can click on any build to see related information.
- This information includes configuration details, information
- about tasks, all recipes and packages built and their
- dependencies, packages and their directory structure as
- installed in your final image,
- execution time, CPU usage and disk I/O per task.
-
-
-
- For details on the interface, see the
- Toaster Manual.
-
-
-
-
- Stopping Toaster
-
-
- Stop the Toaster service with the following command
- from with the
- Build Directory:
-
- $ source toaster stop
-
- The service stops but the Toaster database remains persistent.
-
-
-
-
Profiling with OProfile