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Thomas Petazzoni 33b8c556af gdb: do not allow native gdb on SuperH architecture
The gdb debugger does not have support for running as the native
debugger on the SuperH architecture:

 configure: error: "*** Gdb does not support native target sh4-unknown-linux-gnu"

See also http://lists.debian.org/debian-superh/2010/04/msg00000.html.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2011-11-13 21:31:39 +01:00
board/qemu qemu_sh4_r2d: update to fix serial console support 2011-10-26 11:11:53 +02:00
boot
configs qemu_sh4_r2d: update to fix serial console support 2011-10-26 11:11:53 +02:00
docs doc: update GENTARGETS/AUTOTARGETS/CMAKETARGETS on the number of arguments 2011-11-13 21:30:33 +01:00
fs /etc/profile: read in /etc/profile.d/*.sh files 2011-10-28 14:59:27 +02:00
linux linux: add linux-update-config and linux-update-defconfig targets 2011-11-11 20:13:14 +01:00
package busybox: rename busybox-update to busybox-update-config 2011-11-11 20:14:22 +01:00
support
target
toolchain gdb: do not allow native gdb on SuperH architecture 2011-11-13 21:31:39 +01:00
.defconfig
.gitignore
CHANGES Update for 2011.11-rc1 2011-11-11 20:26:10 +01:00
Config.in
COPYING
Makefile Update for 2011.11-rc1 2011-11-11 20:26:10 +01:00

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 sort of
    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!

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 linux-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