Philipp: Created page with "== Cheat == If you want to cheat, and want to do your development under Cygwin, you can download a pre-compiled cross-compiler toolchain for the Cygwin environment on the Releases page. == Download Crosstool == Crosstool is a collection of scripts which can help you building a cross compiler toolchain without pain. Get the latest version from [http://kegel.com/crosstool/] == Build the toolchain == Reciva uses two different toolchains to build the radio software...."

2025-06-08T12:27:23Z

Created page with "== Cheat == If you want to cheat, and want to do your development under Cygwin, you can download a pre-compiled cross-compiler toolchain for the Cygwin environment on the Releases page. == Download Crosstool == Crosstool is a collection of scripts which can help you building a cross compiler toolchain without pain. Get the latest version from [http://kegel.com/crosstool/] == Build the toolchain == Reciva uses two different toolchains to build the radio software...."

New page

== Cheat ==

If you want to cheat, and want to do your development under Cygwin, you can download a pre-compiled cross-compiler toolchain for the Cygwin environment on the [[Releases]] page.

== Download Crosstool ==

Crosstool is a collection of scripts which can help you building a cross compiler toolchain without pain. Get the latest version from [http://kegel.com/crosstool/]

== Build the toolchain ==

Reciva uses two different toolchains to build the radio software. gcc 3.3.4 is used for the kernel, and 4.1.0 is used for the userspace applications.

The following creates the 4.1.0 toolchain in /opt.

*First check that you have ''flex'' and ''bison'' as they are required but the toolchain builder doesn't check for them.
*unpack crosstool into /opt and rename it. (You will probably need to be root to do this):

cd /opt
tar -zxvf crosstool-<version>.tgz
mv crosstool-<version> crosstool

*The crosstool builder won't run if you are root but normal users can't write to /opt so set the permissions on the crosstool directory.

chown -R <normal-user> crosstool

*Log in as a normal user and go to /opt
*choose the right flavour and build

export RESULT_TOP=/opt/crosstool
eval `cat arm9tdmi.dat gcc-4.1.0-glibc-2.3.2.dat` sh all.sh --notest

This might take some time. If all goes well, you'll end up with a fresh cross compiler in /opt/crosstool

Finally check if the development package of libc is installed (otherwise [[Crosscompiling]] will most probably fail afterwards):

sudo apt-get install libc6-dev

== Configure Your Shell ==

The sharpfin build scripts look for 'arm-9tdmi-linux-gnu-gcc' and other cross-compiling programs in the path. If you add the following lines to your .bashrc file, any cross-tools programs you build will automatically be added to your path:

export RESULT_TOP=/opt/crosstool
COMPILERS=`find $RESULT_TOP -type d -name bin|tr '\n' ':'`
export PATH=$PATH:$COMPILERS
alias cc=arm-9tdmi-linux-gnu-gcc

Toolchain - Revision history