Building GCC on Solaris for the m68k-coff

Files to download:

Let's compile (Follow the FAQ!)

After gunzip-ing and untar-ing, apply the crossgcc patch: 
cd gcc-2.8.1
patch -p1 <../crossgcc-gcc-2.8.1.patch
cd ..

Then run the one-tree script (from Cygnus):

chmod +x one-tree-1.5.sh
./one-tree-1.5.sh

Now compile and install binutils, gcc, and newlib:

host=sparc-sun-solaris2.6
target=m68k-coff
prefix=/opt/depot/m68k-coff-gcc-2.8.1
mkdir build
cd build
CC=gcc ../src/configure --host=$host --target=$target --prefix=$prefix
make all info CC=gcc
make install install-info
cd ..

Note that we're running the bash shell.

Now what?

The cross compiler and libraries are at the path $prefix.

Add $prefix/bin to your path, and you can access the compiler (and other tools) as:

m68k-coff-gcc
m68k-coff-as
m68k-coff-ar
m68k-coff-ld
m68k-coff-objdump
m68k-coff-objcopy
(etc...)
An excellent site for HTML Gnu Docs is at Delorie.

Since I am targetting an MC68332, I have to be sure and add the options

-mc68000 -msoft-float -Wa,-mcpu32
to the m68k-coff-gcc command-line, to let it know which processor to compile for, and which libraries to link in.

The compiler will never generate any special CPU32 instructions, so you have to embed assembly in your C functions (or write in assembly) to use them. The last option up there tells the assembler that it can use the CPU32 instruction set. (Without it, you'll get assembly-time errors.)

For more information contact: Greg Allen <gallen@arlut.utexas.edu>

 $Id: BuildingGCC-m68k.html,v 1.1 1999/09/10 23:07:45 gallen Exp $