GCC 3.x toolchain for uClinux

This is a cross-compiler toolchain for uClinux targetting ColdFire and ARM processors. It is built using recent versions of GCC, binutils, GDB and uClibc.

The toolchain has been reported to build successfully hosted on several Linux distributions, Cygwin and Mac OS X (with minimal tweaks).

ChangeLog

Changes in release 20040603:

Set default installation PREFIX to /usr/local/${CPU}-uclinux-tools
Preliminary GCC 3.5 support.
Add some GCC 3.4 patches by Peter Barada.
Add support for GDB 6.1.
Update m68k-bdm to 1.3.0 and use GDB patches distributed with it.
Integrate preliminary ARM support. (Contributed by Steve Miller <steve.miller-nospam@st.com>).
Fix genromfs patch for Cygwin. (Reported by Jens Heilig <jens-nospam@familie-heilig.net>).

Older Changes.

Downloads

Please use the official uClinux mirror site (faster).

(files marked with [NEW] have been updated since the last release)

Binary packages

GCC 3.4.0 (Linux, i386, GLIBC >= 2.3, built on a Fedora Core 2 host):

m68k-uclinux-tools-base-gcc3.4.0-20040603.sh [NEW]
m68k-uclinux-tools-c++-gcc3.4.0-20040603.sh [NEW]
m68k-uclinux-tools-gdb-20040603.sh [NEW]
arm-uclinux-tools-base-gcc3.4.0-20040610.sh [NEW]
arm-uclinux-tools-gdb-20040610.sh [NEW]

GCC 3.4.0 (Linux, i386, GLIBC >= 2.2, built on a RedHat 7.2 host):

GCC 3.4.0 (Win32, i386, Cygwin 1.5.10, built on a Windows 2000 host):

Contact me for comments and suggestions: Bernardo Innocenti <bernie-nospam@develer.com> (remove -nospam).

Build/source directory: uclinux-tools-20040603/ [NEW]

Common files:
    build-uclinux-tools.sh [NEW]

    binutils-2.15.90.0.1.1.tar.bz2 [ftp://ftp.kernel.org]

    uClibc-0.9.26.tar.bz2 [http://www.uclibc.org]
    uClibc-0.9.26-m68k.config
    uClibc-0.9.26-exec_alloc.patch
    uClibc-0.9.26-ptrace-lvalue.patch [NEW]
    uClibc-0.9.26-syscalls-inline.patch [NEW]

    gdb-6.1.tar.bz2 [ftp://gcc.gnu.org] [NEW]
    m68k-bdm-1.3.0.tar.bz2 [NEW]

    elf2flt-20040336.tar.bz2
    genromfs-0.5.1.tar.gz
    genromfs-0.5.1-cygwin-020605.patch

For GCC 3.4.0:
    gcc-core-3.4.0.tar.bz2 [ftp://gcc.gnu.org]
    gcc-g++-3.4.0.tar.bz2 [ftp://gcc.gnu.org]
    gcc-3.4-addsi3_5200.patch [NEW]
    gcc-3.4-coldfire-2regoffset.patch [NEW]
    gcc-3.4-output_mi_thunk.patch [NEW]
    gcc-3.4.0-arm-deflibspec.patch [NEW]
    gcc-3.4.0-arm-multilib.patch [NEW]

What works

The uClinux kernel (2.4.24-uc0 and 2.6.6-uc0);
The uClinux userland (uClinux-dist-20040408);
XIP support (-msep-data and -move-rodata);
C++ applications using libstdc++ (locale and wchar support is untested);
Multithreaded applications using libpthread (lightly tested);
Building on Cygwin has been reported to work.

Known problems

Code generated with -mid-shared-library does not work in some cases;

Building C++ applications

Source:

    #include <iostream>
    int main()
    {
        std::cout << "Hello, world!\n" << std::endl;
    }

Compiling and linking a simple application:

    m68k-uclinux-g++ -m5307 -o hello hello.cpp

Compiling a source file:

    m68k-uclinux-g++ -m5307 -c -o hello.o hello.cpp

Linking object files to create a FLAT binary:

    m68k-uclinux-g++ -m5307 -Wl,-elf2flt='-s 32000' -o hello hello.o

Credits

David McCullough wrote the original uclinux-elf-tools-20030314
Peter Barada for GCC-3.2.3 and binutils-2.13 Coldfire patches
Thanks to all the people who sent feedback.

This work has been sponsored by Develer S.r.l.