Re: Cross g++ for 68332

From: Michael N. Moran (mike_at_mnmoran.org)
Date: 08/04/04 

Date: Tue, 03 Aug 2004 21:54:51 -0400

Mogens Dybęk Christensen wrote:
> Thanks, good link! About GCC for embedded Linux, and good links.
>
> But this is for a system running an RTOS without file system or TCP/IP,
> so an m68k-elf-compiler with newlib fits better.
>
> I have mailed with Avi Stuart, who made the kit I first tried
> (http://www.davehylands.com/avi/index.htm). He says it should be
> possible to build C++ applications with his kit.
>

I currently am using:

Binutils: 2.13.2.1

newlib-1.11.0

gcc-3.3

GCC configured as follows:
Configured with: ../gcc-3.3/configure --target=m68k-elf
--prefix=/tools/gnu/gcc/3.3/m68k-elf --with-newlib
--enable-languages=c c++

 From ftp://ftp.gnu.org/gnu (or mirror):

1. Download binutils
3. Download GCC (all relavant C/C++ parts)
3. Download newlib

Here's my m68k-elf build script for binutils. I assume
you've unpacked the binutils sources, created a build
directory "binutils-build" next to the unpacked sources.
Then:

$ cd binutils-build
$ ../m68k-elf-binutils.build

========= m68k-elf-binutils.build ==========
#!/bin/bash

../binutils-2.13.2.1/configure \
    --target=m68k-elf \
    --prefix=/tools/gnu/gcc/3.3/m68k-elf

make CFLAGS="-O2 -fomit-frame-pointer"
make install

===================================

Here's my m68k-elf build script for GCC. I assume
you've unpacked the GCC sources and newlib sources,
created a build directory "build" in the same directory.
Then:

$ cd build
$ export PATH=$PATH:/tools/gnu/gcc/3.3/m68k-elf/bin
$ ../m68k-elf-gcc.build

============= m68k-elf-gcc.build ================
#!/bin/bash

# Note: need to set PATH to point at binutils m68k-elf/bin

rm -f ../gcc-3.3/newlib

ln -s ../../../newlib/1.11.0/newlib-1.11.0/newlib ../gcc-3.3/newlib

BINUTILS_PATH=/tools/gnu/gcc/3.3/m68k-elf/bin

export PATH=$PATH:$BINUTILS_PATH

../gcc-3.3/configure \
         --target=m68k-elf \
         --prefix=/tools/gnu/gcc/3.3/m68k-elf \
         --with-newlib \
         --enable-languages="c c++"

make CFLAGS="-O2 -fomit-frame-pointer" > make.temp 2>&1

make install
===================================================

Of course, you have to have permission to write the
install directory (--prefix) in both installations. 

-- 
Michael N. Moran           (h) 770 516 7918
5009 Old Field Ct.         (c) 678 521 5460
Kennesaw, GA, USA 30144    http://mnmoran.org
"... abstractions save us time working, but they don't
  save us time learning."
Joel Spolsky, The Law of Leaky Abstractions
The Beatles were wrong: 1 & 1 & 1 is 1

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