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# OpenPOWER Firmware Build Environment
The OpenPOWER firmware build process uses Buildroot to create a toolchain and
build the various components of the PNOR firmware, including Hostboot, Skiboot,
OCC, Petitboot etc.
## Documentation
https://open-power.github.io/op-build/
See the doc/ directory for documentation source. Contributions
are *VERY* welcome!
## Development
Issues, Milestones, pull requests and code hosting is on GitHub:
https://github.com/open-power/op-build
See [CONTRIBUTING.md](CONTRIBUTING.md) for howto contribute code.
* Mailing list: openpower-firmware@lists.ozlabs.org
* Info/Subscribe: https://lists.ozlabs.org/listinfo/openpower-firmware
* Archives: https://lists.ozlabs.org/pipermail/openpower-firmware/
## Building an image
To build an image for a Palmetto system:
```
git clone --recursive git@github.com:open-power/op-build.git
cd op-build
./op-build palmetto_defconfig && ./op-build
```
There are also default configurations for other platforms in
`openpower/configs/`. Current POWER8 platforms include Habanero,
Firestone, and Garrison. Current POWER9 platforms include Witherspoon,
Boston (p9dsu), Romulus, and Zaius.
Buildroot/op-build supports both native and cross-compilation - it will
automatically download and build an appropriate toolchain as part of the build
process, so you don't need to worry about setting up a
cross-compiler. Cross-compiling from a x86-64 host is officially supported.
The machine your building on will need Python 2.7, GCC 6.2 (or later), and
a handful of other packages (see below).
### Dependencies for *64-bit* Ubuntu/Debian systems
1. Install Ubuntu (>= 18.04) or Debian (>= 9) 64-bit.
2. Enable Universe (Ubuntu only):
sudo apt-get install software-properties-common
sudo add-apt-repository universe
3. Install the packages necessary for the build:
sudo apt-get install cscope ctags libz-dev libexpat-dev \
python language-pack-en texinfo \
build-essential g++ git bison flex unzip \
libssl-dev libxml-simple-perl libxml-sax-perl libxml-parser-perl libxml2-dev libxml2-utils xsltproc \
wget bc rsync
### Dependencies for *64-bit* Fedora systems
1. Install Fedora (>= 25) 64-bit.
2. Install the packages necessary for the build:
sudo dnf install gcc-c++ flex bison git ctags cscope expat-devel patch \
zlib-devel zlib-static texinfo perl-bignum "perl(XML::Simple)" \
"perl(YAML)" "perl(XML::SAX)" "perl(Fatal)" "perl(Thread::Queue)" \
"perl(Env)" "perl(XML::LibXML)" "perl(Digest::SHA1)" libxml2-devel \
which wget unzip tar cpio python bzip2 bc findutils ncurses-devel
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