Using Poky generated host SDK
=============================

How to build host SDK
====

You need to setup Poky and then run one command:

$ bitbake meta-toolchain

Result would be tarball in tmp/deploy/sdk/ with everything needed to build for
your target device. Unpack this in / directory - toolchain will reside in
/usr/local/poky/arm/ dir.

Usage of SDK
=====

First add toolchain into PATH:

$ export PATH=/usr/local/poky/arm/bin/:$PATH

Compiler is 'arm-poky-linux-gnueabi-gcc'. Building 'helloworld' example is
simple:

$ arm-poky-linux-gnueabi-gcc hello.c -o hello
$ file hello
hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), for GNU/Linux 2.6.14, dynamically linked (uses shared libs), not stripped

Autotools and SDK
======

'Configure' scripts allow to specify Host, Target, Build architecture. To build
with Poky SDK you need to specify:

./configure --target=arm-poky-linux-gnueabi --host=arm-poky-linux-gnueabi


Using packages from Poky
========

During development it is often situation that we want to use some libraries
which are available in Poky build. Their packages need to be unpacked to
/usr/local/poky/arm/arm-poky-linux-gnueabi/ directory.

For example to add libiw (from wireless-tools package) you need to unpack two
packages:

libiw29_29-pre20-r0_armv5te.ipk
libiw-dev_29-pre20-r0_armv5te.ipk
