Xscale: cross-compilation:

The cross-development tools are located in:

	/opt/hardhat/previewkit/arm/xscale_be/bin/

However, we don't have to worry about that too much because this path is
included in the search path.

The directory contents are as follows:

[root@ixp03 root]# ls /opt/hardhat/previewkit/arm/xscale_be/bin/
xscale_be-ar  xscale_be-g++  xscale_be-gdb  xscale_be-objcopy
xscale_be-size
xscale_be-as  xscale_be-gcc  xscale_be-ld   xscale_be-objdump

Mostly what we care about is xscale_be-gcc and possibly xscale_be-gdb.
These files are x86 executables and are meant to be run on the host
system.  They are not accessible on the IXP target file-system.  There are
no special command line options necessary (not so with the IXP 1200
and ARM-ish gcc).  The correct include files and library files should be
found by default (at least I've found that to be the case).  In order, to
run your compiled executable, copy it to the target file-system which from
the host file-system point of view is located at:

	/opt/hardhat/previewkit/arm/xscale_be/target/

The convention if there is one is to put the executable in /opt/enp2611/.

As far as debugging is concerned, I would recommend debugging the code as
much as possible in non-embedded linux.  However, in order to debug code
on the xscale, run gdbserver on the IXP target using your executable and
then point xscale_be-gdb at it.


	On the IXP target, run:

	ixp> gdbserver host:<port> <exec_file>


	In gdb (Xscale targeted) on the host, run:

	gdb> target remote <hostname>-1:<port>
	gdb> file <exec_file>
	... Set break points, etc.
	gdb> continue
	... i.e. do not "run" the program since in is already running


An example makefile is located at:

	/opt/enp-2611/sample_application/src/Makefile

This is for the static forwarder application.  The kernel which also uses
the cross-compiler is located at:


/opt/hardhat/previewkit/lsp/intel-ixdp2400-previewkit-arm_xscale_be/linux-2.4.18_mvl30/

where are kernel include files then?

	cd to above, and look in include directory

what's in the gcc lib?
# cd /opt/hardhat/previewkit/arm/xscale_be

[root@zymurgy xscale_be]# ls -R lib
lib:
gcc-lib

lib/gcc-lib:
armv5teb-hardhat-linux

lib/gcc-lib/armv5teb-hardhat-linux:
3.2.1

lib/gcc-lib/armv5teb-hardhat-linux/3.2.1:
cc1  cc1plus  collect2  cpp0  crtbegin.o  crtbeginS.o  crtend.o  crtendS.o
include  libgcc.a  libgcc_eh.a  specs  tradcpp0

lib/gcc-lib/armv5teb-hardhat-linux/3.2.1/include:
float.h  iso646.h  limits.h  linux  README  stdarg.h  stdbool.h  stddef.h
stdio.h  syslimits.h  varargs.h

lib/gcc-lib/armv5teb-hardhat-linux/3.2.1/include/linux:
a.out.h  nls.h