$Id: CROSSDEV,v 1.26 2006/02/25 16:25:50 morsiani Exp morsiani $

*** MIPS cross-compiler HOWTO

To develop programs for uMPS, a cross-compiler is needed.


The uMPS simulator takes on the endian-ness of the host machine.  Therefore the cross-compiler tools need to be created for the appropriate endian-ness of the host machine.  Intel/AMD processors are little-endian.  Sparc and PowerPC processors are big-endian.  The only difference in the construction of the cross-compiler tools is in the parameters used to configure the "make" process.


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After you have downloaded the binutils, the three parts (core, gcc, and g++) of the compiler, and untar-ed them somewhere (location not important) build the binutils first:

cd to the binutils-2.14 directory.

As root "configure" the "make" process with the following command: 


For little-endian machines:  

./configure --prefix=/usr/local --target=mipsel-linux --verbose 

For big-endian machines: 

./configure --prefix=/usr/local --target=mips-linux --verbose


Then: 

make  (the makefile assumes the use of the gnu Make facility which may be called gmake)

make install 

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After the binutils have been successfully installed, build the compiler:

cd to the gcc-3.4.0 directory.


As root "configure" the "make" process with the following command (don't forget to drop the "el" on the target for big-endian installations):

./configure --prefix=/usr/local --target=mipsel-linux --verbose --enable-languages=c --disable-threads --disable-shared --disable-nls

make (the makefile assumes the use of the gnu Make facility which may be called gmake)


make install