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authorSebastian Huber <sebastian.huber@embedded-brains.de>2019-01-11 10:20:08 +0100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2019-01-14 07:15:27 +0100
commit60ed99d2b0c01f46c3458f45c0d0cd9334b6c497 (patch)
treedd13781008149370e2e0b1b8610e17dc7ee39df7 /rsb/cross-canadian-cross.rst
parentuser: Remove unused file (diff)
downloadrtems-docs-60ed99d2b0c01f46c3458f45c0d0cd9334b6c497.tar.bz2
user: Add RSB content as a chapter
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-.. SPDX-License-Identifier: CC-BY-SA-4.0
-
-.. Copyright (C) 2012, 2016 Chris Johns <chrisj@rtems.org>
-
-Cross and Canadian Cross Building
-=================================
-
-Cross building and Canadian Cross building is the process of building on one
-machine an executable that runs on another machine. An example is building a
-set of RTEMS tools on Linux to run on Windows. The RSB supports cross building
-and Canadian cross building.
-
-This sections details how to the RSB to cross and Canadian cross build.
-
-Cross Building
---------------
-
-Cross building is where the _build_ machine and _host_ are different. The
-_build_ machine runs the RSB and the _host_ machine is where the output from
-the build runs. An example is building a package such as NTP for RTEMS on your
-development machine.
-
-To build the NTP package for RTEMS you enter the RSB command::
-
- $ ../source-builder/sb-set-builder \
- --log=log_ntp_arm.txt \
- --prefix=$HOME/development/rtems/4.11 \ <1>
- --host=arm-rtems4.11 \ <2>
- --with-rtems-bsp=xilinx_zynq_zc706 \ <3>
- 4.11/net/ntp
-
-.. topic:: Items:
-
- 1. The tools and the RTEMS BSP are installed under the same prefix.
-
- 2. The ``--host`` command is the RTEMS architecture and version.
-
- 3. The BSP is built and installed in the prefix. The arhcitecture must match
- the ``--host`` architecture.
-
-.. note: Installing Into Different Directories
-
- If you install BSPs into a different path to the prefix use the
- ``--with-tools`` option to specify the path to the tools. Do not add the
- 'bin' directory at the end of the path.
-
-Canadian Cross Building
------------------------
-
-A Canadian cross builds are where the **build**, **host** and **target**
-machines all differ. For example building an RTEMS compiler for an ARM
-processor that runs on Windows is built using a Linux machine. The process is
-controlled by setting the build triplet to the host you are building, the host
-triplet to the host the tools will run on and the target to the RTEMS
-architecture you require. The tools needed by the RSB are:
-
-- Build host C and C++ compiler
-
-- Host C and C++ cross compiler
-
-The RTEMS Source Builder requires you provide the build host C and C++ compiler
-and the final host C and C++ cross-compiler. The RSB will build the build host
-RTEMS compiler and the final host RTEMS C and C++ compiler, the output of this
-process.
-
-The Host C and C++ compiler is a cross-compiler that builds executables for the
-host you want the tools for. You need to provide these tools. For Windows a
-number of Unix operating systems provide MinGW tool sets as packages.
-
-The RSB will build an RTEMS tool set for the build host. This is needed when
-building the final host's RTEMS compiler as it needs to build RTEMS runtime
-code such as *libc* on the build host.
-
-TIP: Make sure the host's cross-compiler tools are in your path before run the
-RSB build command.
-
-TIP: Canadian Cross built tools will not run on the machine being used to build
-them so you should provide the ``--bset-tar-files`` and ``--no-install``
-options. The option to not install the files lets you provide a prefix that
-does not exist or you cannot access.
-
-To perform a cross build add ``--host=`` to the command line. For example
-to build a MinGW tool set on FreeBSD for Windows add ``--host=mingw32``
-if the cross compiler is ``mingw32-gcc``::
-
- $ ../source-builder/sb-set-builder --host=mingw32 \
- --log=l-mingw32-4.11-sparc.txt \
- --prefix=$HOME/development/rtems/4.11 \
- 4.11/rtems-sparc
-
-If you are on a Linux Fedora build host with the MinGW packages installed the
-command line is::
-
- $ ../source-builder/sb-set-builder --host=i686-w64-mingw32 \
- --log=l-mingw32-4.11-sparc.txt \
- --prefix=$HOME/development/rtems/4.11 \
- 4.11/rtems-sparc