DESCRIPTION:

    Basic Xtensa port. It doesn't include any targets. The next step will be
a submission of "xtensa*-*-linux" target. It will include gdbserver port and
everything else necessary to debug Xtensa code on this target.

If this port is accepted Tensilica commits to maintain GDB Xtensa support.

TESTING:

    Testing has been done on an Xtensa XT2000 evaluation board under 
JTAG OCD
control. GDB used GDB remote protocol to communicate through TCP/IP 
sockets with
an OCD daemon controlling the board. All the changes to the DejaGnu 
testing frame
and some generic GDB code updates are not part of this submission 
because this
testing can not be reproduced outside Tensilica as of yet.


Directories used to test GDB : gdb.base, gdb.cp, gdb.fortran, and gdb.mi.

        === gdb Summary ===

# of expected passes        8452
# of unexpected failures    190
# of unexpected successes    3
# of expected failures        52
# of unresolved testcases    6
# of untested testcases        2
# of unsupported tests        9

All 190 failures have been analyzed. The reasons are:

1) DWARF2 data generated by the proprietary Tensilica compiler are not 
100% consistent
   with the latest GDB ;

2) Testing was done on the board without any real OS support. Some of 
the OS environment
   was simulated based on GDB remote FILEIO protocol, but some tests 
failed because of
   some missing support, which comes with this approach.

In the future these failures will be either resolved after switching to 
a newer version
of the compiler or marked as "expected" failures due to a lack of OS 
support.

The entire testing log can be sent separately.


CHANGELOG:

gdb/

2006-09-21  Maxim Grigoriev  <maxim@tensilica.com>

    * NEWS: New port to Xtensa.
    * Makefile.in: Add dependencies for Xtensa files.
    * configure.tgt (xtensa*, xtensa*-*-elf*): New.
    * configure.host (xtensa*-*-elf*): New.
    * config/xtensa/xtensa.mt: New file.
    * xtensa-config.c: New file.
    * xtensa-tdep.h: New file.
    * xtensa-tdep.c: New file.

gdb/doc/

2006-09-21  Maxim Grigoriev  <maxim@tensilica.com>

    * gdb.texinfo: (Contributors): Add contributors of Xtensa port.