653 lines
28 KiB
XML
653 lines
28 KiB
XML
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
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[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
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<chapter id='ref-devtool-reference'>
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<title><filename>devtool</filename> Quick Reference</title>
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<para>
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The <filename>devtool</filename> command-line tool provides a number
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of features that help you build, test, and package software.
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This command is available alongside the <filename>bitbake</filename>
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command.
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Additionally, the <filename>devtool</filename> command is a key
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part of the extensible SDK.
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</para>
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<para>
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This chapter provides a Quick Reference for the
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<filename>devtool</filename> command.
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For more information on how to apply the command when using the
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extensible SDK, see the
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"<ulink url='&YOCTO_DOCS_SDK_URL;#sdk-extensible'>Using the Extensible SDK</ulink>"
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section in the Yocto Project Software Development Kit (SDK) Developer's
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Guide.
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</para>
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<section id='devtool-getting-help'>
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<title>Getting Help</title>
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<para>
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The <filename>devtool</filename> command line is organized
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similarly to Git in that it has a number of sub-commands for
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each function.
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You can run <filename>devtool --help</filename> to see all
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the commands:
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<literallayout class='monospaced'>
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$ devtool --help
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usage: devtool [--basepath BASEPATH] [--bbpath BBPATH] [-d] [-q]
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[--color COLOR] [-h]
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<subcommand> ...
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OpenEmbedded development tool
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options:
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--basepath BASEPATH Base directory of SDK / build directory
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--bbpath BBPATH Explicitly specify the BBPATH, rather than getting it
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from the metadata
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-d, --debug Enable debug output
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-q, --quiet Print only errors
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--color COLOR Colorize output (where COLOR is auto, always, never)
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-h, --help show this help message and exit
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subcommands:
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Beginning work on a recipe:
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add Add a new recipe
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modify Modify the source for an existing recipe
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upgrade Upgrade an existing recipe
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Getting information:
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status Show workspace status
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search Search available recipes
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Working on a recipe in the workspace:
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edit-recipe Edit a recipe file in your workspace
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configure-help Get help on configure script options
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build Build a recipe
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update-recipe Apply changes from external source tree to recipe
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reset Remove a recipe from your workspace
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finish Finish working on a recipe in your workspace
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Testing changes on target:
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deploy-target Deploy recipe output files to live target machine
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undeploy-target Undeploy recipe output files in live target machine
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build-image Build image including workspace recipe packages
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Advanced:
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create-workspace Set up workspace in an alternative location
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extract Extract the source for an existing recipe
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sync Synchronize the source tree for an existing recipe
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Use devtool <subcommand> --help to get help on a specific command
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</literallayout>
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</para>
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<para>
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As directed in the general help output, you can get more
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syntax on a specific command by providing the command
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name and using <filename>--help</filename>:
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<literallayout class='monospaced'>
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$ devtool add --help
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usage: devtool add [-h] [--same-dir | --no-same-dir] [--fetch URI]
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[--version VERSION] [--no-git] [--autorev] [--binary]
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[--also-native] [--src-subdir SUBDIR]
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[recipename] [srctree] [fetchuri]
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Adds a new recipe to the workspace to build a specified source tree. Can
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optionally fetch a remote URI and unpack it to create the source tree.
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arguments:
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recipename Name for new recipe to add (just name - no version,
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path or extension). If not specified, will attempt to
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auto-detect it.
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srctree Path to external source tree. If not specified, a
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subdirectory of
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/home/scottrif/poky/build/workspace/sources will be
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used.
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fetchuri Fetch the specified URI and extract it to create the
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source tree
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options:
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-h, --help show this help message and exit
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--same-dir, -s Build in same directory as source
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--no-same-dir Force build in a separate build directory
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--fetch URI, -f URI Fetch the specified URI and extract it to create the
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source tree (deprecated - pass as positional argument
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instead)
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--version VERSION, -V VERSION
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Version to use within recipe (PV)
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--no-git, -g If fetching source, do not set up source tree as a git
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repository
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--autorev, -a When fetching from a git repository, set SRCREV in the
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recipe to a floating revision instead of fixed
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--binary, -b Treat the source tree as something that should be
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installed verbatim (no compilation, same directory
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structure). Useful with binary packages e.g. RPMs.
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--also-native Also add native variant (i.e. support building recipe
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for the build host as well as the target machine)
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--src-subdir SUBDIR Specify subdirectory within source tree to use
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</literallayout>
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</para>
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</section>
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<section id='devtool-the-workspace-layer-structure'>
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<title>The Workspace Layer Structure</title>
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<para>
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<filename>devtool</filename> uses a "Workspace" layer
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in which to accomplish builds.
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This layer is not specific to any single
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<filename>devtool</filename> command but is rather a common
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working area used across the tool.
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</para>
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<para>
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The following figure shows the workspace structure:
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</para>
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<para>
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<imagedata fileref="figures/build-workspace-directory.png"
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width="6in" depth="5in" align="left" scale="70" />
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</para>
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<para>
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<literallayout class='monospaced'>
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attic - A directory created if devtool believes it preserve
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anything when you run "devtool reset". For example, if you
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run "devtool add", make changes to the recipe, and then
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run "devtool reset", devtool takes notice that the file has
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been changed and moves it into the attic should you still
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want the recipe.
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README - Provides information on what is in workspace layer and how to
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manage it.
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.devtool_md5 - A checksum file used by devtool.
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appends - A directory that contains *.bbappend files, which point to
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external source.
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conf - A configuration directory that contains the layer.conf file.
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recipes - A directory containing recipes. This directory contains a
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folder for each directory added whose name matches that of the
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added recipe. devtool places the <replaceable>recipe</replaceable>.bb file
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within that sub-directory.
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sources - A directory containing a working copy of the source files used
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when building the recipe. This is the default directory used
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as the location of the source tree when you do not provide a
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source tree path. This directory contains a folder for each
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set of source files matched to a corresponding recipe.
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</literallayout>
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</para>
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</section>
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<section id='devtool-adding-a-new-recipe-to-the-workspace'>
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<title>Adding a New Recipe to the Workspace Layer</title>
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<para>
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Use the <filename>devtool add</filename> command to add a new recipe
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to the workspace layer.
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The recipe you add should not exist -
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<filename>devtool</filename> creates it for you.
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The source files the recipe uses should exist in an external
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area.
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</para>
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<para>
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The following example creates and adds a new recipe named
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<filename>jackson</filename> to a workspace layer the tool creates.
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The source code built by the recipes resides in
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<filename>/home/scottrif/sources/jackson</filename>:
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<literallayout class='monospaced'>
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$ devtool add jackson /home/scottrif/sources/jackson
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</literallayout>
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</para>
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<para>
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If you add a recipe and the workspace layer does not exist,
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the command creates the layer and populates it as
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described in
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"<link linkend='devtool-the-workspace-layer-structure'>The Workspace Layer Structure</link>"
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section.
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</para>
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<para>
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Running <filename>devtool add</filename> when the
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workspace layer exists causes the tool to add the recipe,
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append files, and source files into the existing workspace layer.
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The <filename>.bbappend</filename> file is created to point
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to the external source tree.
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</para>
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<note>
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If your recipe has runtime dependencies defined, you must be sure
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that these packages exist on the target hardware before attempting
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to run your application.
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If dependent packages (e.g. libraries) do not exist on the target,
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your application, when run, will fail to find those functions.
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For more information, see the
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"<link linkend='devtool-deploying-your-software-on-the-target-machine'>Deploying Your Software on the Target Machine</link>"
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section.
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</note>
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</section>
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<section id='devtool-extracting-the-source-for-an-existing-recipe'>
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<title>Extracting the Source for an Existing Recipe</title>
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<para>
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Use the <filename>devtool extract</filename> command to
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extract the source for an existing recipe.
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When you use this command, you must supply the root name
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of the recipe (i.e. no version, paths, or extensions), and
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you must supply the directory to which you want the source
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extracted.
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</para>
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<para>
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Additional command options let you control the name of a
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development branch into which you can checkout the source
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and whether or not to keep a temporary directory, which is
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useful for debugging.
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</para>
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</section>
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<section id='devtool-synchronizing-a-recipes-extracted-source-tree'>
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<title>Synchronizing a Recipe's Extracted Source Tree</title>
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<para>
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Use the <filename>devtool sync</filename> command to
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synchronize a previously extracted source tree for an
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existing recipe.
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When you use this command, you must supply the root name
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of the recipe (i.e. no version, paths, or extensions), and
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you must supply the directory to which you want the source
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extracted.
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</para>
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<para>
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Additional command options let you control the name of a
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development branch into which you can checkout the source
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and whether or not to keep a temporary directory, which is
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useful for debugging.
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</para>
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</section>
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<section id='devtool-modifying-a-recipe'>
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<title>Modifying an Existing Recipe</title>
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<para>
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Use the <filename>devtool modify</filename> command to begin
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modifying the source of an existing recipe.
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This command is very similar to the
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<ulink url='&YOCTO_DOCS_DEV_URL;#devtool-adding-a-new-recipe-to-the-workspace'><filename>add</filename></ulink>
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command except that it does not physically create the
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recipe in the workspace layer because the recipe already
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exists in an another layer.
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</para>
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<para>
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The <filename>devtool modify</filename> command extracts the
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source for a recipe, sets it up as a Git repository if the
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source had not already been fetched from Git, checks out a
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branch for development, and applies any patches from the recipe
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as commits on top.
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You can use the following command to checkout the source
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files:
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<literallayout class='monospaced'>
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$ devtool modify <replaceable>recipe</replaceable>
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</literallayout>
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Using the above command form, <filename>devtool</filename> uses
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the existing recipe's
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<link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
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statement to locate the upstream source, extracts the source
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into the default sources location in the workspace.
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The default development branch used is "devtool".
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</para>
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</section>
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<section id='devtool-edit-an-existing-recipe'>
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<title>Edit an Existing Recipe</title>
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<para>
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Use the <filename>devtool edit-recipe</filename> command
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to run the default editor, which is identified using the
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<filename>EDITOR</filename> variable, on the specified recipe.
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</para>
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<para>
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When you use the <filename>devtool edit-recipe</filename>
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command, you must supply the root name of the recipe
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(i.e. no version, paths, or extensions).
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Also, the recipe file itself must reside in the workspace
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as a result of the <filename>devtool add</filename> or
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<filename>devtool upgrade</filename> commands.
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However, you can override that requirement by using the
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"-a" or "--any-recipe" option.
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Using either of these options allows you to edit any recipe
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regardless of its location.
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</para>
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</section>
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<section id='devtool-updating-a-recipe'>
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<title>Updating a Recipe</title>
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<para>
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Use the <filename>devtool update-recipe</filename> command to
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update your recipe with patches that reflect changes you make
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to the source files.
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For example, if you know you are going to work on some
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code, you could first use the
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<ulink url='&YOCTO_DOCS_DEV_URL;#devtool-modifying-a-recipe'><filename>devtool modify</filename></ulink>
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command to extract the code and set up the workspace.
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After which, you could modify, compile, and test the code.
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</para>
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<para>
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When you are satisfied with the results and you have committed
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your changes to the Git repository, you can then
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run the <filename>devtool update-recipe</filename> to create the
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patches and update the recipe:
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<literallayout class='monospaced'>
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$ devtool update-recipe <replaceable>recipe</replaceable>
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</literallayout>
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If you run the <filename>devtool update-recipe</filename>
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without committing your changes, the command ignores the
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changes.
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</para>
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<para>
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Often, you might want to apply customizations made to your
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software in your own layer rather than apply them to the
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original recipe.
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If so, you can use the
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<filename>-a</filename> or <filename>--append</filename>
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option with the <filename>devtool update-recipe</filename>
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command.
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These options allow you to specify the layer into which to
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write an append file:
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<literallayout class='monospaced'>
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$ devtool update-recipe <replaceable>recipe</replaceable> -a <replaceable>base-layer-directory</replaceable>
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</literallayout>
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The <filename>*.bbappend</filename> file is created at the
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appropriate path within the specified layer directory, which
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may or may not be in your <filename>bblayers.conf</filename>
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file.
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If an append file already exists, the command updates it
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appropriately.
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</para>
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</section>
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<section id='devtool-upgrading-a-recipe'>
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<title>Upgrading a Recipe</title>
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<para>
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Use the <filename>devtool upgrade</filename> command
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to upgrade an existing recipe to a new upstream version.
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The command puts the upgraded recipe file into the
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workspace along with any associated files, and extracts
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the source tree to a specified location should patches
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need rebased or added to as a result of the upgrade.
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</para>
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<para>
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When you use the <filename>devtool upgrade</filename> command,
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you must supply the root name of the recipe (i.e. no version,
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paths, or extensions), and you must supply the directory
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to which you want the source extracted.
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Additional command options let you control things such as
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the version number to which you want to upgrade (i.e. the
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<link linkend='var-PV'><filename>PV</filename></link>),
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the source revision to which you want to upgrade (i.e. the
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<link linkend='var-SRCREV'><filename>SRCREV</filename></link>,
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whether or not to apply patches, and so forth.
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</para>
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</section>
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<section id='devtool-resetting-a-recipe'>
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<title>Resetting a Recipe</title>
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<para>
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Use the <filename>devtool reset</filename> command to remove a
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recipe and its configuration (e.g. the corresponding
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<filename>.bbappend</filename> file) from the workspace layer.
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Realize that this command deletes the recipe and the
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append file.
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The command does not physically move them for you.
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Consequently, you must be sure to physically relocate your
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updated recipe and the append file outside of the workspace
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layer before running the <filename>devtool reset</filename>
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command.
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</para>
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<para>
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If the <filename>devtool reset</filename> command detects that
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the recipe or the append files have been modified, the
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command preserves the modified files in a separate "attic"
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subdirectory under the workspace layer.
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</para>
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<para>
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Here is an example that resets the workspace directory that
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contains the <filename>mtr</filename> recipe:
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<literallayout class='monospaced'>
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$ devtool reset mtr
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NOTE: Cleaning sysroot for recipe mtr...
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NOTE: Leaving source tree /home/scottrif/poky/build/workspace/sources/mtr as-is; if you no
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longer need it then please delete it manually
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$
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</literallayout>
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</para>
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</section>
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<section id='devtool-building-your-recipe'>
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<title>Building Your Recipe</title>
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<para>
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Use the <filename>devtool build</filename> command to cause the
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OpenEmbedded build system to build your recipe.
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The <filename>devtool build</filename> command is equivalent to
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<filename>bitbake -c populate_sysroot</filename>.
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</para>
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<para>
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When you use the <filename>devtool build</filename> command,
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you must supply the root name of the recipe (i.e. no version,
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paths, or extensions).
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You can use either the "-s" or the "--disable-parallel-make"
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option to disable parallel makes during the build.
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Here is an example:
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<literallayout class='monospaced'>
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$ devtool build <replaceable>recipe</replaceable>
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</literallayout>
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</para>
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</section>
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<section id='devtool-building-your-image'>
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<title>Building Your Image</title>
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<para>
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Use the <filename>devtool build-image</filename> command
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to build an image, extending it to include packages from
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recipes in the workspace.
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Using this command is useful when you want an image that
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ready for immediate deployment onto a device for testing.
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For proper integration into a final image, you need to
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edit your custom image recipe appropriately.
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</para>
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<para>
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When you use the <filename>devtool build-image</filename>
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command, you must supply the name of the image.
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This command has no command line options:
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<literallayout class='monospaced'>
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$ devtool build-image <replaceable>image</replaceable>
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</literallayout>
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</para>
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</section>
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<section id='devtool-deploying-your-software-on-the-target-machine'>
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<title>Deploying Your Software on the Target Machine</title>
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<para>
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Use the <filename>devtool deploy-target</filename> command to
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deploy the recipe's build output to the live target machine:
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<literallayout class='monospaced'>
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$ devtool deploy-target <replaceable>recipe</replaceable> <replaceable>target</replaceable>
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</literallayout>
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The <replaceable>target</replaceable> is the address of the
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target machine, which must be running an SSH server (i.e.
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<filename>user@hostname[:destdir]</filename>).
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</para>
|
|
|
|
<para>
|
|
This command deploys all files installed during the
|
|
<link linkend='ref-tasks-install'><filename>do_install</filename></link>
|
|
task.
|
|
Furthermore, you do not need to have package management enabled
|
|
within the target machine.
|
|
If you do, the package manager is bypassed.
|
|
<note><title>Notes</title>
|
|
<para>
|
|
The <filename>deploy-target</filename>
|
|
functionality is for development only.
|
|
You should never use it to update an image that will be
|
|
used in production.
|
|
</para>
|
|
</note>
|
|
</para>
|
|
|
|
<para>
|
|
Some conditions exist that could prevent a deployed application
|
|
from behaving as expected.
|
|
When both of the following conditions exist, your application has
|
|
the potential to not behave correctly when run on the target:
|
|
<itemizedlist>
|
|
<listitem><para>
|
|
You are deploying a new application to the target and
|
|
the recipe you used to build the application had
|
|
correctly defined runtime dependencies.
|
|
</para></listitem>
|
|
<listitem><para>
|
|
The target does not physically have the packages on which
|
|
the application depends installed.
|
|
</para></listitem>
|
|
</itemizedlist>
|
|
If both of these conditions exist, your application will not
|
|
behave as expected.
|
|
The reason for this misbehavior is because the
|
|
<filename>devtool deploy-target</filename> command does not deploy
|
|
the packages (e.g. libraries) on which your new application
|
|
depends.
|
|
The assumption is that the packages are already on the target.
|
|
Consequently, when a runtime call is made in the application
|
|
for a dependent function (e.g. a library call), the function
|
|
cannot be found.
|
|
</para>
|
|
|
|
<para>
|
|
To be sure you have all the dependencies local to the target, you
|
|
need to be sure that the packages are pre-deployed (installed)
|
|
on the target before attempting to run your application.
|
|
</para>
|
|
</section>
|
|
|
|
<section id='devtool-removing-your-software-from-the-target-machine'>
|
|
<title>Removing Your Software from the Target Machine</title>
|
|
|
|
<para>
|
|
Use the <filename>devtool undeploy-target</filename> command to
|
|
remove deployed build output from the target machine.
|
|
For the <filename>devtool undeploy-target</filename> command to
|
|
work, you must have previously used the
|
|
<ulink url='&YOCTO_DOCS_DEV_URL;#devtool-deploying-your-software-on-the-target-machine'><filename>devtool deploy-target</filename></ulink>
|
|
command.
|
|
<literallayout class='monospaced'>
|
|
$ devtool undeploy-target <replaceable>recipe</replaceable> <replaceable>target</replaceable>
|
|
</literallayout>
|
|
The <replaceable>target</replaceable> is the address of the
|
|
target machine, which must be running an SSH server (i.e.
|
|
<filename>user@hostname</filename>).
|
|
</para>
|
|
</section>
|
|
|
|
<section id='devtool-creating-the-workspace'>
|
|
<title>Creating the Workspace Layer in an Alternative Location</title>
|
|
|
|
<para>
|
|
Use the <filename>devtool create-workspace</filename> command to
|
|
create a new workspace layer in your
|
|
<ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
|
|
When you create a new workspace layer, it is populated with the
|
|
<filename>README</filename> file and the
|
|
<filename>conf</filename> directory only.
|
|
</para>
|
|
|
|
<para>
|
|
The following example creates a new workspace layer in your
|
|
current working and by default names the workspace layer
|
|
"workspace":
|
|
<literallayout class='monospaced'>
|
|
$ devtool create-workspace
|
|
</literallayout>
|
|
</para>
|
|
|
|
<para>
|
|
You can create a workspace layer anywhere by supplying
|
|
a pathname with the command.
|
|
The following command creates a new workspace layer named
|
|
"new-workspace":
|
|
<literallayout class='monospaced'>
|
|
$ devtool create-workspace /home/scottrif/new-workspace
|
|
</literallayout>
|
|
</para>
|
|
</section>
|
|
|
|
<section id='devtool-get-the-status-of-the-recipes-in-your-workspace'>
|
|
<title>Get the Status of the Recipes in Your Workspace</title>
|
|
|
|
<para>
|
|
Use the <filename>devtool status</filename> command to
|
|
list the recipes currently in your workspace.
|
|
Information includes the paths to their respective
|
|
external source trees.
|
|
</para>
|
|
|
|
<para>
|
|
The <filename>devtool status</filename> command has no
|
|
command-line options:
|
|
<literallayout class='monospaced'>
|
|
$ devtool status
|
|
</literallayout>
|
|
Following is sample output after using
|
|
<ulink url='&YOCTO_DOCS_DEV_URL;#devtool-adding-a-new-recipe-to-the-workspace'><filename>devtool add</filename></ulink>
|
|
to create and add the <filename>mtr_0.86.bb</filename> recipe
|
|
to the <filename>workspace</filename> directory:
|
|
<literallayout class='monospaced'>
|
|
$ devtool status
|
|
mtr: /home/scottrif/poky/build/workspace/sources/mtr (/home/scottrif/poky/build/workspace/recipes/mtr/mtr_0.86.bb)
|
|
$
|
|
</literallayout>
|
|
</para>
|
|
</section>
|
|
|
|
<section id='devtool-search-for-available-target-recipes'>
|
|
<title>Search for Available Target Recipes</title>
|
|
|
|
<para>
|
|
Use the <filename>devtool search</filename> command to
|
|
search for available target recipes.
|
|
The command matches the recipe name, package name,
|
|
description, and installed files.
|
|
The command displays the recipe name as a result of a
|
|
match.
|
|
</para>
|
|
|
|
<para>
|
|
When you use the <filename>devtool search</filename> command,
|
|
you must supply a <replaceable>keyword</replaceable>.
|
|
The command uses the <replaceable>keyword</replaceable> when
|
|
searching for a match.
|
|
</para>
|
|
</section>
|
|
</chapter>
|
|
<!--
|
|
vim: expandtab tw=80 ts=4
|
|
-->
|