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vogelchr, 02/19/2016 10:48 PM
apt-get libmpfr-dev (redundant)


GNU ARM toolchain

This page will describe the procedure for compiling a GNU ARM toolchain.
We will build a toolchain consisting of:

  • GCC 4.5.2
  • Binutils 2.21.1
  • Newlib 1.19

=== Getting the buildscript ===

First of all, create a directory you want to use for building the toolchain, and download the buildscript [raw-gnu-arm-build.2.sh] there.
You will need to make it executable:

{{{
$ chmod +x gnu-arm-build.2.sh
}}}

=== Dependencies ===

In order to build the toolchain, you will need to install the following packages (assuming you're using a Debian-based distribution):

{{{
$ sudo apt-get install build-essential libgmp3-dev libmpfr-dev libx11-6 libx11-dev texinfo flex bison libncurses5 \
libncurses5-dbg libncurses5-dev libncursesw5 libncursesw5-dbg libncursesw5-dev zlibc zlib1g-dev libmpfr4 libmpc-dev
}}}

=== Preparation ===

Open a shell in the directory of gnu-arm-build.sh and create the following directories:

{{{
$ mkdir build install src
}}}

Download the needed sources to src/:

{{{
$ cd src/
$ wget http://ftp.gnu.org/gnu/gcc/gcc-4.5.2/gcc-4.5.2.tar.bz2
$ wget http://ftp.gnu.org/gnu/binutils/binutils-2.21.1a.tar.bz2
$ wget ftp://sources.redhat.com/pub/newlib/newlib-1.19.0.tar.gz
}}}

=== Building the toolchain ===

{{{
$ cd ..
$ ./gnu-arm-build.2.sh
I will build an arm-elf cross-compiler:

Prefix: <YOURPATH>/install
Sources: <YOURPATH>/src
Build files: <YOURPATH>/build

Press ^C now if you do NOT want to do this.
}}}

Hit enter and after some time hopefully end up with:

{{{
Build complete! Add <YOURPATH>/bin to your PATH to make arm-elf-gcc and friends
accessible directly.
}}}

=== Making it accessible ===

If you're using bash, you can add the following in your ~/.bashrc file:

{{{
export PATH=$PATH:<YOURPATH>/install/bin
}}}

That's it. You can [GettingStarted#Gettingandupdatingthesource build] OsmocomBB now.

'''Credits:'''

This script is a slightly updated/modified version of the script found [http://hobbycode.googlecode.com/svn/trunk/gnu-arm-installer/ here]. BR
The original version also builds Insight, but since we don't need that, we won't build it. If you want to, just remove the comments in the shellscript.

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