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Yann E. MORIN 84c825f8e8 core: add the possibility to provide help for custom rules
When using a br2-external tree, it is possible (as stated in our manual)
to implement whatever arbitrary extra make rules (such as flashing a
board, or extracting the rootfs in an NFS export...). Some of those
extra rules might be exposed to the user as new entry points that the
user can call by itself.

However, there is no way for the br2-external to advertise those new
rules in the help text.

We add the possibility to do so, by adding a new make rule, called
help-custom, advertised in our own help info.

It is up to the br2-external tree to provide whatever help text is
deemed necessary. The format of the help is completely free-form.

Note that we need to provide an empty, dummy help-custom rule, since it
is always advertised (making it .PHONY does not work). Since this rule
is empty, make gently reports that there is "Nothing to be done for
`help-local'", which is pretty well fitting when help-local was not
provided (either because there's no br2-external tree, or when the
br2-external tree does not provide it.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jérôme Pouiller <jezz@sysmic.org>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-03-19 16:41:22 +01:00
arch arch/arm: add the cortex A17 variant supported by gcc 5.x 2016-02-22 09:31:42 +01:00
board configs/qemu: bump to the latest linux versions 2016-03-14 22:14:56 +01:00
boot barebox: bump to version 2016.03.0 2016-03-17 14:29:06 +01:00
configs configs: nitrogen*: bump kernel version to 3.14.52-1.1.0_ga 2016-03-19 14:59:16 +01:00
docs core: add the possibility to provide help for custom rules 2016-03-19 16:41:22 +01:00
fs fs/common: generate users before setting permissions 2016-02-01 07:25:36 +01:00
linux linux/perf: conditionally enable support for gz/xz compression 2016-03-19 14:38:14 +01:00
package webkitgtk24: security bump to version 2.4.10 2016-03-19 15:02:11 +01:00
support scancpan: use recommend & test flags only at first level 2016-03-15 23:16:33 +01:00
system skeleton: Recreate /var/run symlink 2016-02-11 23:20:38 +01:00
toolchain toolchain/external: add hashes for actual sources 2016-03-19 15:10:18 +01:00
.defconfig
.gitignore
CHANGES Update for 2016.02 2016-03-01 21:47:30 +01:00
Config.in Config.in: Add BR2_DEPRECATED_SINCE_2016_05 2016-02-23 22:56:26 +01:00
Config.in.legacy uboot: remove deprecated BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR option 2016-03-15 22:47:47 +01:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
Makefile core: add the possibility to provide help for custom rules 2016-03-19 16:41:22 +01:00
Makefile.legacy
README README: add reference to submitting-patches 2016-02-01 19:16:08 +01:00

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches