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This directory contains the build_tools script. This script is used to
build and install an RTEMS toolset from source. You are responsible for
downloading the various tools from either release images or their
development versions and patching as appropriate.
The usage is as follows:
-v verbose (default=no)
-c clean after building if OK (default=yes)
-A toggle building binutils, gcc, newlib, and gdb
-a toggle building autoconf (default=no)
-m toggle building automake (default=no)
-b toggle building binutils (default=no)
-g toggle building gcc/newlib (default=no)
-d toggle building gdb (default=no)
-i INSTALL specify install directory (required)
-t TARGET specify target (required)
-B DIRECTORY specify directory for build tree (default=pwd)
-T toggle running test (default=no)
-M toggle sending test results email (default=no)
To build a cross toolset for a target, invoke the build_tools command
with INSTALL_POINT replaced with "prefix" in GNU tool terms:
./build_tools -i INSTALL_POINT -t TARGET -A
Depending on the target and the speed of the machine, this can take
anywhere from 30 minutes to a few hours.
When completed, you should prepend INSTALL_POINT/bin to your PATH:
export PATH=INSTALL_POINT/bin:$PATH
Since you need the proper autoconf and automake versions to bootstrap
RTEMS, these are included in the build script.
The script will also build non-RTEMS embedded GNU targets. This
script can be used to build and test a no-OS target that shares
a common code base with the RTEMS target. For example, arm-rtems
is very similar to arm-eabi. Testing the non-RTEMS target variant
can help when reporting issues and tracking down problems.
--Joel Sherrill (9 January 2013)
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