Godot's buildroot soft-fork for generating toolchains to make portable Linux releases of Godot games.
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Thomas Petazzoni 0802370746 Add generic functions to enable/set/disable options in kconfig files
The KCONFIG_ENABLE_OPT, KCONFIG_SET_OPT and KCONFIG_DISABLE_OPT are
new make functions to respectively enable, set and disable options in
Kconfig-like files (as used by the kernel, uClibc or Busybox).

They can be used as follows :

 $(call KCONFIG_ENABLE_OPT,CONFIG_FOOBAR,/path/to/.config)
 $(call KCONFIG_SET_OPT,CONFIG_BARFOO,foobar,/path/to/.config)
 $(call KCONFIG_DISABLE_OPT,CONFIG_FARBOO,/path/to/.config)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2010-06-22 21:20:27 +02:00
boot
configs Config.in.mirrors: Use sources.buildroot.net as default backup site 2010-06-21 23:02:31 +02:00
docs docs: Document location of .config for out-of-tree builds 2010-06-21 23:07:12 +02:00
fs iso9660: take into account the linux changes 2010-06-22 21:20:26 +02:00
linux linux: Add dependency on host-module-init-tools 2010-06-22 21:20:27 +02:00
package Add generic functions to enable/set/disable options in kconfig files 2010-06-22 21:20:27 +02:00
scripts
target Remove old Linux infrastructure 2010-06-22 21:20:26 +02:00
toolchain check-host-sed.sh: use mktemp for temporary file 2010-06-21 23:02:31 +02:00
.defconfig
.gitignore
CHANGES
COPYING
Config.in New, simpler, infrastructure for building the Linux kernel 2010-06-22 21:20:25 +02:00
Makefile Remove old Linux infrastructure 2010-06-22 21:20:26 +02:00
TODO

docs/README

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

1) run 'make menuconfig'
2) select the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) Use your shiny new root filesystem.  Depending on which sortof
    root filesystem you selected, you may want to loop mount it,
    chroot into it, nfs mount it on your target device, burn it
    to flash, or whatever is appropriate for your target system.

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

 -Erik

Offline build:
==============

In order to do an offline-build (not connected to the net), fetch all
selected source by issuing a
$ make source

before you disconnect.
If your build-host is never connected, then you have to copy buildroot
and your toplevel .config to a machine that has an internet-connection
and issue "make source" there, then copy the content of your dl/ dir to
the build-host.

Building out-of-tree:
=====================

Buildroot supports building out of tree with a syntax similar
to the Linux kernel. To use it, add O=<directory> to the
make command line, E.G.:

$ make O=/tmp/build

And all the output files (including .config) will be located under /tmp/build.

More finegrained configuration:
===============================

You can specify a config-file for uClibc:
$ make UCLIBC_CONFIG_FILE=/my/uClibc.config

And you can specify a config-file for busybox:
$ make BUSYBOX_CONFIG_FILE=/my/busybox.config

To use a non-standard host-compiler (if you do not have 'gcc'),
make sure that the compiler is in your PATH and that the library paths are
setup properly, if your compiler is built dynamically:
$ make HOSTCC=gcc-4.3.orig HOSTCXX=gcc-4.3-mine

Depending on your configuration, there are some targets you can use to
use menuconfig of certain packages. This includes:
$ make HOSTCC=gcc-4.3 linux26-menuconfig
$ make HOSTCC=gcc-4.3 uclibc-menuconfig
$ make HOSTCC=gcc-4.3 busybox-menuconfig

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@uclibc.org