# bitbake task * Writer : Harvey Wu (harveywu95@gmail.com) * Begin write : 2022/08/09 ## Check task list example 1: bitbake -c listtasks smbios-mdr ``` do_build Default task for a recipe - depends on all other normal tasks required to 'build' a recipe do_checkuri Validates the SRC_URI value do_clean Removes all output files for a target do_cleanall Removes all output files, shared state cache, and downloaded source files for a target do_cleansstate Removes all output files and shared state cache for a target do_compile Compiles the source in the compilation directory do_configure Configures the source by enabling and disabling any build-time and configuration options for the software being built do_deploy_source_date_epoch do_deploy_source_date_epoch_setscene (setscene version) do_devshell Starts a shell with the environment set up for development/debugging do_fetch Fetches the source code do_generate_toolchain_file do_install Copies files from the compilation directory to a holding area do_listtasks Lists all defined tasks for a target do_package Analyzes the content of the holding area and splits it into subsets based on available packages and files do_package_qa Runs QA checks on packaged files do_package_qa_setscene Runs QA checks on packaged files (setscene version) do_package_setscene Analyzes the content of the holding area and splits it into subsets based on available packages and files (setscene version) do_package_write_rpm Creates the actual RPM packages and places them in the Package Feed area do_package_write_rpm_setscene Creates the actual RPM packages and places them in the Package Feed area (setscene version) do_packagedata Creates package metadata used by the build system to generate the final packages do_packagedata_setscene Creates package metadata used by the build system to generate the final packages (setscene version) do_patch Locates patch files and applies them to the source code do_populate_lic Writes license information for the recipe that is collected later when the image is constructed do_populate_lic_setscene Writes license information for the recipe that is collected later when the image is constructed (setscene version) do_populate_sysroot Copies a subset of files installed by do_install into the sysroot in order to make them available to other recipes do_populate_sysroot_setscene Copies a subset of files installed by do_install into the sysroot in order to make them available to other recipes (setscene version) do_prepare_recipe_sysroot do_pydevshell Starts an interactive Python shell for development/debugging do_unpack Unpacks the source code into a working directory ``` example 2: bitbake -c listtasks obmc-phosphor-image ``` do_build Default task for a recipe - depends on all other normal tasks required to 'build' a recipe do_checkuri Validates the SRC_URI value do_clean Removes all output files for a target do_cleanall Removes all output files, shared state cache, and downloaded source files for a target do_cleansstate Removes all output files and shared state cache for a target do_compile Compiles the source in the compilation directory do_configure Configures the source by enabling and disabling any build-time and configuration options for the software being built do_copy_signing_pubkey do_deploy_source_date_epoch do_deploy_source_date_epoch_setscene (setscene version) do_devshell Starts a shell with the environment set up for development/debugging do_fetch Fetches the source code do_flush_pseudodb do_generate_phosphor_manifest do_generate_rwfs_ext4 do_generate_rwfs_static do_generate_rwfs_ubi do_generate_static do_generate_static_alltar do_generate_static_tar do_generate_ubi_tar do_image do_image_complete do_image_complete_setscene (setscene version) do_image_cpio do_image_qa do_image_qa_setscene (setscene version) do_image_squashfs_xz do_install Copies files from the compilation directory to a holding area do_listtasks Lists all defined tasks for a target do_package Analyzes the content of the holding area and splits it into subsets based on available packages and files do_package_qa_setscene Runs QA checks on packaged files (setscene version) do_package_setscene Analyzes the content of the holding area and splits it into subsets based on available packages and files (setscene version) do_package_write_rpm_setscene Creates the actual RPM packages and places them in the Package Feed area (setscene version) do_packagedata_setscene Creates package metadata used by the build system to generate the final packages (setscene version) do_patch Locates patch files and applies them to the source code do_populate_lic_deploy do_populate_lic_setscene Writes license information for the recipe that is collected later when the image is constructed (setscene version) do_populate_sdk Creates the file and directory structure for an installable SDK do_populate_sdk_ext do_populate_sdk_setscene Creates the file and directory structure for an installable SDK (setscene version) do_populate_sysroot_setscene Copies a subset of files installed by do_install into the sysroot in order to make them available to other recipes (setscene version) do_prepare_bootloaders do_prepare_recipe_sysroot do_pydevshell Starts an interactive Python shell for development/debugging do_rootfs Creates the root filesystem (file and directory structure) for an image do_rootfs_wicenv do_sdk_depends do_unpack Unpacks the source code into a working directory ``` * PS. Another useful cmd to check repices list : ```bitbake -s``` ## Procedure * The ```base.bbclass``` file is always included. Other classes that are specified in the configuration using the :term:`INHERIT` variable are also included.[(link)](https://github.com/openbmc/openbmc/blob/master/poky/bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.rst#parsing-the-base-configuration-metadata) * About setscene task => https://docs.yoctoproject.org/2.2/ref-manual/ref-manual.html#shared-state ### obmc-phosphor-image.bbclass inherit: ```graphviz digraph obmc_phosphor_image { nodesep=1.0 node [color=Black,fontname=Arial,shape=box] edge [color=Blue, style=dashed] "obmc-phosphor-image" -> {"core-image", "obmc-phosphor-utils"} "core-image" -> {"image"} "image" -> {"rootfs_deb/ipk/rpm", "image-types", "image_types_wic", "node"} "node" -> {"rootfs-postcommands", "image-postinst-intercepts", "overlayfs-etc"} "node" [shape=circle] "image-types" -> {"siteinfo", "kernel-arch", "image-artifact-names"} "rootfs-postcommands" -> "image-artifact-names" } ``` ### base.bbclass inherit: ```graphviz digraph base_inherit { nodesep=1.0 node [color=Black,fontname=Arial,shape=box] edge [color=Blue, style=dashed] base -> {patch, staging, mirrors, utils, "utility-tasks", logging, metadata_scm} } ``` task: ```graphviz digraph base_task { nodesep=1.0 node [color=Black,fontname=Arial,shape=box] edge [color=Blue, style=dashed] do_fetch -> do_unpack do_patch -> do_deploy_source_date_epoch -> do_configure do_configure -> do_compile -> do_install do_populate_sysroot -> do_build do_clean -> do_cleansstate -> do_cleanall do_unpack -> do_patch [label="patch.bbclass"] do_fetch -> do_prepare_recipe_sysroot -> do_configure [label="staging.bbclass"] do_install -> do_populate_sysroot [label="staging.bbclass"] } ``` ### image.bbclass task: ```graphviz digraph task { nodesep=1.0 node [color=Black,fontname=Arial,shape=box] edge [color=Blue, style=dashed] do_prepare_recipe_sysroot -> do_rootfs do_image -> do_image_complete -> do_build do_rootfs -> do_image_qa -> do_image do_populate_sysroot -> do_rootfs } ```