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167 lines
2.8 KiB
ReStructuredText
167 lines
2.8 KiB
ReStructuredText
.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
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****************
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Variable Context
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****************
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While you can use most variables in almost any context such as
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``.conf``, ``.bbclass``, ``.inc``, and ``.bb`` files, some variables are
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often associated with a particular locality or context. This chapter
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describes some common associations.
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.. _ref-varlocality-configuration:
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Configuration
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=============
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The following subsections provide lists of variables whose context is
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configuration: distribution, machine, and local.
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.. _ref-varlocality-config-distro:
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Distribution (Distro)
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---------------------
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This section lists variables whose configuration context is the
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distribution, or distro.
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- :term:`DISTRO`
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- :term:`DISTRO_NAME`
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- :term:`DISTRO_VERSION`
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- :term:`MAINTAINER`
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- :term:`PACKAGE_CLASSES`
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- :term:`TARGET_OS`
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- :term:`TARGET_FPU`
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- :term:`TCMODE`
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- :term:`TCLIBC`
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.. _ref-varlocality-config-machine:
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Machine
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-------
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This section lists variables whose configuration context is the machine.
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- :term:`TARGET_ARCH`
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- :term:`SERIAL_CONSOLES`
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- :term:`PACKAGE_EXTRA_ARCHS`
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- :term:`IMAGE_FSTYPES`
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- :term:`MACHINE_FEATURES`
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- :term:`MACHINE_EXTRA_RDEPENDS`
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- :term:`MACHINE_EXTRA_RRECOMMENDS`
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- :term:`MACHINE_ESSENTIAL_EXTRA_RDEPENDS`
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- :term:`MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS`
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.. _ref-varlocality-config-local:
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Local
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-----
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This section lists variables whose configuration context is the local
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configuration through the ``local.conf`` file.
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- :term:`DISTRO`
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- :term:`MACHINE`
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- :term:`DL_DIR`
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- :term:`BBFILES`
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- :term:`EXTRA_IMAGE_FEATURES`
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- :term:`PACKAGE_CLASSES`
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- :term:`BB_NUMBER_THREADS`
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- :term:`BBINCLUDELOGS`
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- :term:`ENABLE_BINARY_LOCALE_GENERATION`
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.. _ref-varlocality-recipes:
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Recipes
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=======
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The following subsections provide lists of variables whose context is
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recipes: required, dependencies, path, and extra build information.
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.. _ref-varlocality-recipe-required:
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Required
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--------
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This section lists variables that are required for recipes.
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- :term:`LICENSE`
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- :term:`LIC_FILES_CHKSUM`
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- :term:`SRC_URI` --- used in recipes that fetch local or remote files.
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.. _ref-varlocality-recipe-dependencies:
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Dependencies
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------------
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This section lists variables that define recipe dependencies.
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- :term:`DEPENDS`
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- :term:`RDEPENDS`
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- :term:`RRECOMMENDS`
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- :term:`RCONFLICTS`
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- :term:`RREPLACES`
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.. _ref-varlocality-recipe-paths:
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Paths
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-----
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This section lists variables that define recipe paths.
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- :term:`WORKDIR`
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- :term:`S`
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- :term:`FILES`
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.. _ref-varlocality-recipe-build:
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Extra Build Information
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-----------------------
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This section lists variables that define extra build information for
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recipes.
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- :term:`DEFAULT_PREFERENCE`
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- :term:`EXTRA_OECMAKE`
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- :term:`EXTRA_OECONF`
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- :term:`EXTRA_OEMAKE`
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- :term:`PACKAGECONFIG_CONFARGS`
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- :term:`PACKAGES`
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