# Cross gcc for M68K/Coldfire dedicated to the Rockbox Project
# =============================================================
# Primary target is the iRiver iHp-xxx models which have a MCF 5249 Coldfire V2
#
# Get sources:
# ------------
# gcc-3.3.5.tar.bz2
# Yes, we know that there are newer versions of the compiler (3.4.3 when I'm writing this)
# but the 3.3.x version creates much more compact code than 3.4.x, and that is crucial to
# build the ROM version of Rockbox, otherwise it won't fit in the flash ROM.
# Setup sources:
# --------------
tar xvjf gcc-3.3.5.tar.bz2
tar xvzf newlib-1.12.0.tar.gz
cd gcc-3.3.5
ln -s ../newlib-1.12.0/newlib .
# Coldfire Patches:
# -----------------
# http://www.uclinux.org/pub/uClinux/uclinux-elf-tools/gcc-3/
patch -b -z.targets -p1 -i ../gcc-3.3.2-coldfire-targets.patch
patch -b -z.frame -p1 -i ../gcc-3.3.2-coldfire-frame.patch 
patch -b -z.omitfrmptr -p1 -i ../gcc-3.3.2-coldfire-omitfrmptr.patch
cd ..
mv gcc-3.3.5 gcc-3.3.5-coldfire
# Setup build environment:
# ------------------------
mkdir -p build/m68k-elf/gcc
cd build/m68k-elf/gcc/
# Configure for elf-m68k restricted to the coldfire CPU:
# ------------------------------------------------------
# Warning: you must have the m68k-elf-binutils allready installed !
CFLAGS="-O4" ../../../gcc-3.3.5-coldfire/configure --prefix=/opt/m68k --target=m68k-elf --enable-languages=c --with-cpu=m5200
make
# Compiling and linking a simple application:
#
#    m68k-elf-gcc [-m5200] -o hello hello.c
#
# Compiling a source file:
#
#    m68k-elf-gcc [-m5200] -c -o hello.o hello.c