manual: trivial fixes
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Arnout Vandecappelle (Essensium/Mind)
Peter Korsgaard
parent
670d60dc91
commit
1d989fafba
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@ -133,13 +133,13 @@ cases, typical packages will therefore only use a few of them.
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* +LIBFOO_INSTALL_STAGING_OPT+ contains the make options
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used to install the package to the staging directory. By default, the
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value is +DESTDIR=$$(STAGING_DIR) install+, which is
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value is +DESTDIR=$(STAGING_DIR) install+, which is
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correct for most autotools packages. It is still possible to override
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it.
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* +LIBFOO_INSTALL_TARGET_OPT+ contains the make options
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used to install the package to the target directory. By default, the
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value is +DESTDIR=$$(TARGET_DIR) install+. The default
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value is +DESTDIR=$(TARGET_DIR) install+. The default
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value is correct for most autotools packages, but it is still possible
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to override it if needed.
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@ -115,12 +115,12 @@ typical packages will therefore only use a few of them.
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* +LIBFOO_INSTALL_STAGING_OPT+ contains the make options used to
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install the package to the staging directory. By default, the value
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is +DESTDIR=$$(STAGING_DIR) install+, which is correct for most
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is +DESTDIR=$(STAGING_DIR) install+, which is correct for most
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CMake packages. It is still possible to override it.
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|
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* +LIBFOO_INSTALL_TARGET_OPT+ contains the make options used to
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install the package to the target directory. By default, the value
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is +DESTDIR=$$(TARGET_DIR) install+. The default value is correct
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is +DESTDIR=$(TARGET_DIR) install+. The default value is correct
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for most CMake packages, but it is still possible to override it if
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needed.
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@ -8,5 +8,5 @@ matter of writing a Makefile using an existing example and modifying it
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according to the compilation process required by the package.
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If you package software that might be useful for other people, don't
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forget to send a patch to Buildroot developers!
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forget to send a patch to the Buildroot mailing list!
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@ -7,7 +7,7 @@ First of all, create a directory under the +package+ directory for
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your software, for example +libfoo+.
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Some packages have been grouped by topic in a sub-directory:
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+multimedia+, +java+, +x11r7+, and +games+. If your package fits in
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+multimedia+, +x11r7+, +efl+ and +matchbox+. If your package fits in
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one of these categories, then create your package directory in these.
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@ -175,8 +175,8 @@ information is (assuming the package name is +libfoo+) :
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Examples: +
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+LIBFOO_SITE=http://www.libfoosoftware.org/libfoo+ +
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+LIBFOO_SITE=http://svn.xiph.org/trunk/Tremor/+ +
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+LIBFOO_SITE=git://github.com/kergoth/tslib.git+
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+LIBFOO_SITE=/opt/software/libfoo.tar.gz+
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+LIBFOO_SITE=git://github.com/kergoth/tslib.git+ +
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+LIBFOO_SITE=/opt/software/libfoo.tar.gz+ +
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+LIBFOO_SITE=$(TOPDIR)/../src/libfoo/+
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* +LIBFOO_SITE_METHOD+ determines the method used to fetch or copy the
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@ -221,7 +221,7 @@ information is (assuming the package name is +libfoo+) :
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name) that are required for the current target package to
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compile. These dependencies are guaranteed to be compiled and
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installed before the configuration of the current package starts. In
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a similar way, +HOST_LIBFOO_DEPENDENCIES+ lists the dependency for
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a similar way, +HOST_LIBFOO_DEPENDENCIES+ lists the dependencies for
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the current host package.
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* +LIBFOO_INSTALL_STAGING+ can be set to +YES+ or +NO+ (default). If
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@ -275,20 +275,20 @@ LIBFOO_VERSION = 2.32
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Now, the variables that define what should be performed at the
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different steps of the build process.
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* +LIBFOO_CONFIGURE_CMDS+, used to list the actions to be performed to
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configure the package before its compilation
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* +LIBFOO_CONFIGURE_CMDS+ lists the actions to be performed to
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configure the package before its compilation.
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* +LIBFOO_BUILD_CMDS+, used to list the actions to be performed to
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compile the package
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* +LIBFOO_BUILD_CMDS+ lists the actions to be performed to
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compile the package.
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* +HOST_LIBFOO_INSTALL_CMDS+, used to list the actions to be performed
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* +HOST_LIBFOO_INSTALL_CMDS+ lists the actions to be performed
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to install the package, when the package is a host package. The
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package must install its files to the directory given by
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+$(HOST_DIR)+. All files, including development files such as
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headers should be installed, since other packages might be compiled
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on top of this package.
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* +LIBFOO_INSTALL_TARGET_CMDS+, used to list the actions to be
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* +LIBFOO_INSTALL_TARGET_CMDS+ lists the actions to be
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performed to install the package to the target directory, when the
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package is a target package. The package must install its files to
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the directory given by +$(TARGET_DIR)+. Only the files required for
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@ -297,24 +297,24 @@ different steps of the build process.
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to the target, if the +development files in target filesystem+
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option is selected.
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* +LIBFOO_INSTALL_STAGING_CMDS+, used to list the actions to be
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* +LIBFOO_INSTALL_STAGING_CMDS+ lists the actions to be
|
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performed to install the package to the staging directory, when the
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package is a target package. The package must install its files to
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the directory given by +$(STAGING_DIR)+. All development files
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should be installed, since they might be needed to compile other
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packages.
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|
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* +LIBFOO_CLEAN_CMDS+, used to list the actions to perform to clean up
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* +LIBFOO_CLEAN_CMDS+, lists the actions to perform to clean up
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the build directory of the package.
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|
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* +LIBFOO_UNINSTALL_TARGET_CMDS+, used to list the actions to
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* +LIBFOO_UNINSTALL_TARGET_CMDS+ lists the actions to
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uninstall the package from the target directory +$(TARGET_DIR)+
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* +LIBFOO_UNINSTALL_STAGING_CMDS+, used to list the actions to
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* +LIBFOO_UNINSTALL_STAGING_CMDS+ lists the actions to
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uninstall the package from the staging directory +$(STAGING_DIR)+.
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* +LIBFOO_INSTALL_INIT_SYSV+ and +LIBFOO_INSTALL_INIT_SYSTEMD+, used
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to install init scripts either for the systemV-like init systems
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* +LIBFOO_INSTALL_INIT_SYSV+ and +LIBFOO_INSTALL_INIT_SYSTEMD+ list the
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actions to install init scripts either for the systemV-like init systems
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(busybox, sysvinit, etc.) or for the systemd units. These commands
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will be run only when the relevant init system is installed (i.e. if
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systemd is selected as the init system in the configuration, only
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@ -352,8 +352,8 @@ using the autotools infrastructure described below. However, since
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they are provided by the generic infrastructure, they are documented
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here. The exception is +LIBFOO_POST_PATCH_HOOKS+. Patching the
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package and producing legal info are not user definable, so
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+LIBFOO_POST_PATCH_HOOKS+ and +LIBFOO_POST_LEGAL_INFO_HOOKS+ will be
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userful for generic packages.
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+LIBFOO_POST_PATCH_HOOKS+ and +LIBFOO_POST_LEGAL_INFO_HOOKS+ are
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useful for generic packages.
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The following hook points are available:
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@ -32,8 +32,8 @@ using the following rules:
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[[github-download-url]]
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How to add package from github
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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How to add a package from github
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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If the package has no release version, or its version cannot be
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identified using tag, then the sha1 of the particular commit should be
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@ -21,7 +21,7 @@ selections are highly application-specific.
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Once you have a known working configuration, run +make
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savedefconfig+. This will generate a minimal +defconfig+ file at the
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root of the Buildroot source tree. Move this file into the +configs/+
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directory, and rename it +MYBOARD_defconfig+.
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directory, and rename it +BOARDNAME_defconfig+.
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It is recommended to use upstream versions of the Linux kernel and
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bootloaders where possible, and also to use default kernel and bootloader
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|
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@ -47,7 +47,7 @@ safely run multiple builds in parallel using the same source tree as
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long as they use unique output directories.
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For ease of use, Buildroot generates a Makefile wrapper in the output
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directory - So after the first run, you no longer need to pass +O=..+
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directory - so after the first run, you no longer need to pass +O=..+
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and +-C ..+, simply run (in the output directory):
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--------------------
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@ -69,21 +69,21 @@ to +make+ or set in the environment:
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internal toolchain is being built.
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+
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Note that the uClibc configuration file can also be set from the
|
||||
configuration interface, so through the Buildroot .config file; this
|
||||
configuration interface, so through the Buildroot +.config+ file; this
|
||||
is the recommended way of setting it.
|
||||
+
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* +BUSYBOX_CONFIG_FILE=<path/to/.config>+, path to
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the Busybox configuration file.
|
||||
+
|
||||
Note that the Busybox configuration file can also be set from the
|
||||
configuration interface, so through the Buildroot .config file; this
|
||||
configuration interface, so through the Buildroot +.config+ file; this
|
||||
is the recommended way of setting it.
|
||||
+
|
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* +BUILDROOT_DL_DIR+ to override the directory in which
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Buildroot stores/retrieves downloaded files
|
||||
+
|
||||
Note that the Buildroot download directory can also be set from the
|
||||
configuration interface, so through the Buildroot .config file; this
|
||||
configuration interface, so through the Buildroot +.config+ file; this
|
||||
is the recommended way of setting it.
|
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|
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An example that uses config files located in the toplevel directory and
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|
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@ -5,7 +5,7 @@ Customizing the generated target filesystem
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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|
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Besides changing one or another configuration through +make *config+,
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there are a few ways to customize the resulting target filesystem:
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there are a few ways to customize the resulting target filesystem.
|
||||
|
||||
* Customize the target filesystem directly and rebuild the image. The
|
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target filesystem is available under +output/target/+. You can
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@ -13,7 +13,7 @@ there are a few ways to customize the resulting target filesystem:
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|||
rebuild the target filesystem image. This method allows you to do
|
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anything to the target filesystem, but if you decide to completely
|
||||
rebuild your toolchain and tools, these changes will be lost.
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_Changes are not resistent to the +make clean+ command_.
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_Changes do not survive the +make clean+ command_.
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* Create your own 'target skeleton'. You can start with the default
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skeleton available under +system/skeleton+ and then customize it to
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@ -30,13 +30,13 @@ there are a few ways to customize the resulting target filesystem:
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|||
assembled. The +BR2_ROOTFS_POST_BUILD_SCRIPT+ will allow you to
|
||||
specify the location of your post-build script. This option can be
|
||||
found in the +System configuration+ menu. The destination root
|
||||
filesystem folder *is given as the first argument to this script,
|
||||
filesystem folder is given as the first argument to this script,
|
||||
and this script can then be used to copy programs, static data or
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||||
any other needed file to your target filesystem. You should,
|
||||
however, use this feature with care. Whenever you find that a
|
||||
certain package generates wrong or unneeded files, you should fix
|
||||
that package rather than work around it with a post-build cleanup
|
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script. _Among these first 3 methods, this one should be prefere_d.
|
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script. _Among these first 3 methods, this one should be preferred_.
|
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|
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* A special package, 'customize', stored in +package/customize+ can be
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used. You can put all the files that you want to see in the final
|
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|
|
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|
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@ -24,13 +24,13 @@ The internal Buildroot toolchain backend *only* allows to generate
|
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However, it allows to tune major settings, such as:
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* Linux header version
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* Linux headers version;
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* http://www.uclibc.org/[uClibc] configuration (see xref:uclibc-custom[uClibc])
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* http://www.uclibc.org/[uClibc] configuration (see xref:uclibc-custom[uClibc]);
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|
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* Binutils, GCC, Gdb and toolchain options
|
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* Binutils, GCC, Gdb and toolchain options.
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|
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This is directly available after selecting the +Buildroot toolchain+ type in
|
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These settings are available after selecting the +Buildroot toolchain+ type in
|
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the menu +Toolchain+.
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Using the Crosstool-NG backend
|
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@ -44,4 +44,4 @@ limited set of settings under the Buildroot +Toolchain+ menu (ie. when invoking
|
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|
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* Gdb and some toolchain options
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|
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Then, the toolchain can be finely tuned invoking +make ctng-menuconfig+.
|
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Then, the toolchain can be fine-tuned by invoking +make ctng-menuconfig+.
|
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|
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|
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@ -18,17 +18,16 @@ follow these steps:
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|||
similar to the one used in the Linux kernel or Buildroot,
|
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appears. Make your configuration changes as appropriate.
|
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|
||||
* Copy the +$(O)/toolchain/uclibc-VERSION/.config+ file to a different
|
||||
place (like +toolchain/uClibc/uClibc-myconfig.config+, or
|
||||
+board/mymanufacturer/myboard/uClibc.config+) and adjust the uClibc
|
||||
configuration (configuration option +BR2_UCLIBC_CONFIG+) to use this
|
||||
* Copy the +$(O)/toolchain/uClibc-VERSION/.config+ file to a different
|
||||
place (e.g. +board/MANUFACTURER/BOARDNAME/uClibc.config+) and adjust
|
||||
the uClibc configuration file option +BR2_UCLIBC_CONFIG+ to refer to this
|
||||
configuration instead of the default one.
|
||||
|
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* Run the compilation of Buildroot again.
|
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|
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Otherwise, you can simply change +toolchain/uClibc/uClibc.config+,
|
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Otherwise, you can simply change +toolchain/uClibc/uClibc-VERSION.config+,
|
||||
without running the configuration assistant.
|
||||
|
||||
If you want to use an existing config file for uclibc, then see
|
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If you want to use an existing config file for uClibc, then see
|
||||
xref:env-vars[].
|
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|
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|
|
|
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|
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@ -82,7 +82,7 @@ interested in Buildroot for two reasons:
|
|||
|
||||
You might wonder why such a tool is needed when you can compile +gcc+,
|
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+binutils+, +uClibc+ and all the other tools by hand. Of course doing
|
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so is possible but, dealing with all of the configure options and
|
||||
so is possible, but dealing with all of the configure options and
|
||||
problems of every +gcc+ or +binutils+ version is very time-consuming
|
||||
and uninteresting. Buildroot automates this process through the use
|
||||
of Makefiles and has a collection of patches for each +gcc+ and
|
||||
|
|
|
|||
|
|
@ -26,8 +26,8 @@ Then, you have three solutions to use an external toolchain:
|
|||
|
||||
* Use a predefined external toolchain profile, and let Buildroot
|
||||
download, extract and install the toolchain. Buildroot already knows
|
||||
about a few CodeSourcery toolchains for ARM, PowerPC, MIPS and
|
||||
SuperH. Just select the toolchain profile in +Toolchain+ through the
|
||||
about a few CodeSourcery, Linaro, Blackfin and Xilinx toolchains.
|
||||
Just select the toolchain profile in +Toolchain+ from the
|
||||
available ones. This is definitely the easiest solution.
|
||||
|
||||
* Use a predefined external toolchain profile, but instead of having
|
||||
|
|
@ -45,7 +45,8 @@ Then, you have three solutions to use an external toolchain:
|
|||
toolchain C library+ options. Then, you have to tell Buildroot what
|
||||
your external toolchain supports. If your external toolchain uses
|
||||
the 'glibc' library, you only have to tell whether your toolchain
|
||||
supports C++ or not. If your external toolchain uses the 'uclibc'
|
||||
supports C\+\+ or not and whether it has built-in RPC support. If
|
||||
your external toolchain uses the 'uClibc'
|
||||
library, then you have to tell Buildroot if it supports largefile,
|
||||
IPv6, RPC, wide-char, locale, program invocation, threads and
|
||||
C++. At the beginning of the execution, Buildroot will tell you if
|
||||
|
|
@ -53,7 +54,7 @@ Then, you have three solutions to use an external toolchain:
|
|||
|
||||
|
||||
Our external toolchain support has been tested with toolchains from
|
||||
CodeSourcery, toolchains generated by
|
||||
CodeSourcery and Linaro, toolchains generated by
|
||||
http://crosstool-ng.org[crosstool-NG], and toolchains generated by
|
||||
Buildroot itself. In general, all toolchains that support the
|
||||
'sysroot' feature should work. If not, do not hesitate to contact the
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ How Buildroot works
|
|||
As mentioned above, Buildroot is basically a set of Makefiles that
|
||||
download, configure, and compile software with the correct options. It
|
||||
also includes patches for various software packages - mainly the ones
|
||||
involved in the cross-compilation tool chain (+gcc+, +binutils+ and
|
||||
involved in the cross-compilation toolchain (+gcc+, +binutils+ and
|
||||
+uClibc+).
|
||||
|
||||
There is basically one Makefile per software package, and they are
|
||||
|
|
|
|||
|
|
@ -17,5 +17,5 @@ processors, MIPS processors, ARM processors, etc.
|
|||
Buildroot supports numerous processors and their variants; it also
|
||||
comes with default configurations for several boards available
|
||||
off-the-shelf. Besides this, a number of third-party projects are based on,
|
||||
or develop their BSP footnote:[BSP: Board Software Package] or
|
||||
SDK footnote:[SDK: Standard Development Kit] on top of Buildroot.
|
||||
or develop their BSP footnote:[BSP: Board Support Package] or
|
||||
SDK footnote:[SDK: Software Development Kit] on top of Buildroot.
|
||||
|
|
|
|||
|
|
@ -5,13 +5,13 @@
|
|||
Legal notice and licensing
|
||||
==========================
|
||||
|
||||
Complying with opensource licenses
|
||||
----------------------------------
|
||||
Complying with open source licenses
|
||||
-----------------------------------
|
||||
|
||||
All of the end products of Buildroot (toolchain, root filesystem, kernel,
|
||||
bootloaders) contain opensource software, released under various licenses.
|
||||
bootloaders) contain open source software, released under various licenses.
|
||||
|
||||
Using opensource software gives you the freedom to build rich embedded
|
||||
Using open source software gives you the freedom to build rich embedded
|
||||
systems, choosing from a wide range of packages, but also imposes some
|
||||
obligations that you must know and honour.
|
||||
Some licenses require you to publish the license text in the documentation of
|
||||
|
|
@ -46,7 +46,7 @@ There you will find:
|
|||
* A manifest file listing the configured packages, their version, license and
|
||||
related information.
|
||||
Some of this information might not be defined in Buildroot; such items are
|
||||
clearly marked as "unknown" or similar.
|
||||
marked as "unknown".
|
||||
* A +licenses/+ subdirectory, which contains the license text of packages.
|
||||
If the license file(s) are not defined in Buildroot, the file is not produced
|
||||
and a warning in the +README+ indicates this.
|
||||
|
|
@ -56,16 +56,20 @@ produce all the material that is somehow relevant for legal compliance with the
|
|||
package licenses. Buildroot does not try to produce the exact material that
|
||||
you must somehow make public. Certainly, more material is produced than is
|
||||
needed for a strict legal compliance. For example, it produces the source code
|
||||
for packages released under BSD-like licenses, that you might not want to
|
||||
for packages released under BSD-like licenses, that you are not required to
|
||||
redistribute in source form.
|
||||
|
||||
Moreover, due to technical limitations, Buildroot does not produce some
|
||||
material that you will or may need, such as the toolchain source code and the
|
||||
Buildroot source code itself.
|
||||
Buildroot source code itself (including patches to packages for which source
|
||||
distribution is required).
|
||||
When you run +make legal-info+, Buildroot produces warnings in the +README+
|
||||
file to inform you of relevant material that could not be saved.
|
||||
|
||||
[[legal-info-list-licenses]]
|
||||
License abbreviations
|
||||
---------------------
|
||||
|
||||
Here is a list of the licenses that are most widely used by packages in
|
||||
Buildroot, with the name used in the manifest file:
|
||||
|
||||
|
|
@ -86,6 +90,13 @@ Buildroot, with the name used in the manifest file:
|
|||
* +GPL+:
|
||||
http://www.gnu.org/licenses/gpl.html[
|
||||
GNU General Public License] (any version);
|
||||
* +LGPLv2+:
|
||||
http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html[
|
||||
GNU Library General Public License, version 2];
|
||||
* +LGPLv2++:
|
||||
http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html[
|
||||
GNU Library General Public License, version 2.1]
|
||||
or (at your option) any later version;
|
||||
* +LGPLv2.1+:
|
||||
http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html[
|
||||
GNU Lesser General Public License, version 2.1];
|
||||
|
|
@ -112,7 +123,7 @@ Buildroot, with the name used in the manifest file:
|
|||
Complying with the Buildroot license
|
||||
------------------------------------
|
||||
|
||||
Buildroot itself is an opensource software, released under the
|
||||
Buildroot itself is an open source software, released under the
|
||||
http://www.gnu.org/licenses/old-licenses/gpl-2.0.html[GNU General Public
|
||||
License, version 2] or (at your option) any later version.
|
||||
However, being a build system, it is not normally part of the end product:
|
||||
|
|
|
|||
|
|
@ -4,55 +4,61 @@
|
|||
'make' tips
|
||||
-----------
|
||||
|
||||
Because Buildroot is a set of Makefiles and patches, there are a few
|
||||
things that are useful to know, such as:
|
||||
This is a collection of tips that help you make the most of Buildroot.
|
||||
|
||||
+make *config+ commands offer a search tool. Read the help message in
|
||||
.Configuration searches:
|
||||
|
||||
The +make *config+ commands offer a search tool. Read the help message in
|
||||
the different frontend menus to know how to use it:
|
||||
|
||||
* in _menuconfig_, search tool is called by pressing +/+;
|
||||
* in _xconfig_, search tool is called by pressing +ctrl+ + +f+.
|
||||
* in _menuconfig_, the search tool is called by pressing +/+;
|
||||
* in _xconfig_, the search tool is called by pressing +Ctrl+ + +f+.
|
||||
|
||||
The result of the search shows the help message of the matching items.
|
||||
|
||||
Display all commands executed by make:
|
||||
.Display all commands executed by make:
|
||||
|
||||
--------------------
|
||||
$ make V=0|1 <target>
|
||||
$ make V=1 <target>
|
||||
--------------------
|
||||
|
||||
Display all available targets:
|
||||
.Display all available targets:
|
||||
|
||||
--------------------
|
||||
$ make help
|
||||
--------------------
|
||||
|
||||
Note that some settings in the +.config+ file may hide some targets:
|
||||
.Not all targets are always available,
|
||||
|
||||
* +busybox-menuconfig+ depends on whether +busybox+ is enabled or not
|
||||
in the +Package selection+ menu
|
||||
* +linux-menuconfig+ and +linux-savedefconfig+ depend on whether
|
||||
+linux+ is enabled or not
|
||||
* +uclibc-menuconfig+ depends on whether the toolchain uses the
|
||||
Buildroot internal toolchain backend or not
|
||||
* +ctng-menuconfig+ depends on whether the toolchain uses the
|
||||
crosstool-NG backend or not
|
||||
* +barebox-menuconfig+ and +barebox-savedefconfig+ depend on whether
|
||||
+barebox+ bootloader is enabled or not
|
||||
some settings in the +.config+ file may hide some targets:
|
||||
|
||||
Delete all build products (including build directories, host, staging
|
||||
* +linux-menuconfig+ and +linux-savedefconfig+ only work when
|
||||
+linux+ is enabled;
|
||||
* +uclibc-menuconfig+ is only available when the
|
||||
Buildroot internal toolchain backend is used;
|
||||
* +ctng-menuconfig+ is only available when the
|
||||
crosstool-NG backend is used;
|
||||
* +barebox-menuconfig+ and +barebox-savedefconfig+ only work when the
|
||||
+barebox+ bootloader is enabled.
|
||||
|
||||
.Cleaning:
|
||||
|
||||
Explicit cleaning is required when any of the architecture or toolchain
|
||||
configuration options are changed.
|
||||
|
||||
To delete all build products (including build directories, host, staging
|
||||
and target trees, the images and the toolchain):
|
||||
|
||||
--------------------
|
||||
$ make clean
|
||||
--------------------
|
||||
|
||||
Delete all build products as well as the configuration:
|
||||
To delete all build products as well as the configuration:
|
||||
|
||||
--------------------
|
||||
$ make distclean
|
||||
--------------------
|
||||
|
||||
Note that if +ccache+ is enabled, running +make clean|distclean+ does
|
||||
Note that if +ccache+ is enabled, running +make clean+ or +distclean+ does
|
||||
not empty the compiler cache used by Buildroot. To delete it, refer
|
||||
to xref:ccache[].
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ It takes the form of a line for each file, with the following layout:
|
|||
There are a few non-trivial blocks here:
|
||||
|
||||
- +name+ is the path to the file you want to create/modify
|
||||
- +type+ is the type of the file, being one of :
|
||||
- +type+ is the type of the file, being one of:
|
||||
* f: a regular file
|
||||
* d: a directory
|
||||
* c: a character device file
|
||||
|
|
|
|||
|
|
@ -6,11 +6,12 @@ Patch Policy
|
|||
------------
|
||||
|
||||
While integrating a new package or updating an existing one, it may be
|
||||
necessary to patch the source of the software to get it built within
|
||||
necessary to patch the source of the software to get it cross-built within
|
||||
Buildroot.
|
||||
|
||||
Buildroot offers an infrastructure to automatically handle this during
|
||||
the builds. It supports several ways of applying patch sets:
|
||||
the builds. It supports two ways of applying patch sets: downloaded patches
|
||||
and patches supplied within buildroot.
|
||||
|
||||
Providing patches
|
||||
~~~~~~~~~~~~~~~~~
|
||||
|
|
@ -29,10 +30,10 @@ Within Buildroot
|
|||
^^^^^^^^^^^^^^^^
|
||||
|
||||
Most patches are provided within Buildroot, in the package
|
||||
directory; these typically aim to fix cross-compilation, +libc+ support,
|
||||
directory; these typically aim to fix cross-compilation, libc support,
|
||||
or other such issues.
|
||||
|
||||
These patch files should have the extension +*.patch+.
|
||||
These patch files should be named +<packagename>-*.patch+.
|
||||
|
||||
A +series+ file, as used by +quilt+, may also be added in the
|
||||
package directory. In that case, the +series+ file defines the patch
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@ Mandatory packages
|
|||
|
||||
** +which+
|
||||
** +sed+
|
||||
** +make+ (version 3.82 or any later)
|
||||
** +make+ (version 3.81 or any later)
|
||||
** +binutils+
|
||||
** +build-essential+ (only for Debian based systems)
|
||||
** +gcc+ (version 2.95 or any later)
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@ In some cases, a full rebuild is mandatory:
|
|||
|
||||
* each time the toolchain properties are changed, this includes:
|
||||
|
||||
** after changing some toolchain option under the _Toolchain_ menu (if
|
||||
** after changing any toolchain option under the _Toolchain_ menu (if
|
||||
the internal Buildroot backend is used);
|
||||
** after running +make ctng-menuconfig+ (if the crosstool-NG backend
|
||||
is used);
|
||||
|
|
@ -25,7 +25,7 @@ In some cases, a full rebuild is mandatory:
|
|||
In some cases, a full rebuild is recommended:
|
||||
|
||||
* after adding some libraries to the package selection (otherwise,
|
||||
some packages that can be optionally linked against those libraries
|
||||
packages that can be optionally linked against those libraries
|
||||
won't be rebuilt, so they won't support those new available
|
||||
features).
|
||||
|
||||
|
|
|
|||
|
|
@ -31,9 +31,9 @@ to run the Qt or GTK-based configurators.
|
|||
All of these "make" commands will need to build a configuration
|
||||
utility (including the interface), so you may need to install
|
||||
"development" packages for relevant libraries used by the
|
||||
configuration utilities. Check the xref:requirement[] to know what
|
||||
Buildroot needs, and specifically the xref:requirement-optional[system requirements]
|
||||
to get the dependencies of favorite interface.
|
||||
configuration utilities. Check xref:requirement[] to know what
|
||||
Buildroot needs, and specifically the xref:requirement-optional[optional requirements]
|
||||
to get the dependencies of your favorite interface.
|
||||
|
||||
For each menu entry in the configuration tool, you can find associated
|
||||
help that describes the purpose of the entry.
|
||||
|
|
@ -52,15 +52,15 @@ You *should never* use +make -jN+ with Buildroot: it does not support
|
|||
'top-level parallel make'. Instead, use the +BR2_JLEVEL+ option to
|
||||
tell Buildroot to run each package compilation with +make -jN+.
|
||||
|
||||
This command will generally perform the following steps:
|
||||
The `make` command will generally perform the following steps:
|
||||
|
||||
* Download source files (as required)
|
||||
* Configure, build and install the cross-compiling toolchain using the
|
||||
appropriate toolchain backend, or simply import an external toolchain
|
||||
* Build/install selected target packages
|
||||
* Build a kernel image, if selected
|
||||
* Build a bootloader image, if selected
|
||||
* Create a root filesystem in selected formats
|
||||
* download source files (as required);
|
||||
* configure, build and install the cross-compiling toolchain using the
|
||||
appropriate toolchain backend, or simply import an external toolchain;
|
||||
* build/install selected target packages;
|
||||
* build a kernel image, if selected;
|
||||
* build a bootloader image, if selected;
|
||||
* create a root filesystem in selected formats.
|
||||
|
||||
Buildroot output is stored in a single directory, +output/+.
|
||||
This directory contains several subdirectories:
|
||||
|
|
|
|||
|
|
@ -121,5 +121,5 @@ The documentation
|
|||
The documentation uses the
|
||||
http://www.methods.co.nz/asciidoc/[asciidoc] format.
|
||||
|
||||
Further details about the http://www.methods.co.nz/asciidoc/[asciidoc]
|
||||
syntax: refer to http://www.methods.co.nz/asciidoc/userguide.html[].
|
||||
For further details about the http://www.methods.co.nz/asciidoc/[asciidoc]
|
||||
syntax, refer to http://www.methods.co.nz/asciidoc/userguide.html[].
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user