Building The Linux* Cross Compile Toolchain Using Yocto [Linux Build Environment Only]18 - Intel Quark SoC X1000 User Manual

Building the Linux* cross compile toolchain using Yocto [Linux build environment only]
7 Building the Linux* cross
compile toolchain using Yocto
[Linux build environment only]
The steps to build the cross compile toolchain are the same as the steps for the Yocto
root file system and kernel build as described in
bitbake command arguments.
To build the tool chain, open a new terminal session and follow the steps in
Section 6
# bitbake image-full -c populate_sdk
The same files can be used for both builds, however, you must source the
poky oe-init-build-env yocto_build every time you use a new terminal.
The output of the build process is a script that installs the toolchain on another
system:
clanton-tiny-uclibc-x86_64-i586-toolchain-1.4.2.sh
The script is located in ./tmp/deploy/sdk
Note: The script may change your environment significantly, thus breaking other, non-Yocto
tools you might be using (including anything which uses Python). You must open a
new terminal session to source the Yocto environment and run make, and run all
your other commands in other terminal sessions.
When you are ready to compile your application, first run the source command below
to define default values for CC, CONFIGURE_FLAGS, and other environment variables,
then you can compile:
# source
# ${CC} myfile.c -o myfile
or
# source
# ${CC} myfile.c -o myfile
For general details, see the Yocto Application Development Toolkit (ADT) information:
https://www.yoctoproject.org/tools-resources/projects/application-development-
toolkit-adt
Instructions about adding a package to the Linux build may be found here:
http://www.yoctoproject.org/docs/current/dev-manual/dev-manual.html#usingpoky-
extend-customimage-localconf
Quark Linux uses uclibc, which is a C library optimized for embedded systems. This
enables a very small Linux that can fit into SPI flash with the UEFI bootloader and
Grub OS loader.
Intel ® Quark™ SoC X1000
BSP Build and Software User Guide
18
but modify the bitbake command as follows:
/opt/clanton-tiny/1.4.2/environment-setup-x86_32-poky-linux
/opt/clanton-tiny/1.4.2/environment-setup-x86_64-poky-linux
Section 6, with the exception of the
Order Number: 329687-007US