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                    What has changed in GDB for OpenRISC?

                        (Organized release by release)

*** Changes in GDB 7.1 for the 32-bit OpenRISC 1000

* OpenRISC Remote JTAG Protocol dropped

  As planned, support for the proprietary OpenRISC Remote JTAG Protocol has

  been dropped. This protocol was introduced in GDB 5.0 in 1999, but the use

  of proprietary protocols has since been superceded by use of the standard

  GDB Remote Serial Protocol. The OpenRISC architectural simulator, Verilator

  RTL and all modern FGPA implementations all support the GDB Remote Serial

  Protocol.

* Simulator Target

  "target sim" now works, using the OpenRISC architectural simulator, Or1ksim,

  which has been integrated within GDB. This has greatly extended the scope of

  regression testing.

* Consistent Naming of Source Files

  For consistency with the rest of the OpenRISC toolchain, all source files

  now use "or32" in their name, rather than "or1k". In particular this means

  the custom documentation is now found in doc/or32.texinfo.

*** Changes in GDB 6.8 for the 32-bit OpenRISC 1000

* New target

or32-elf. Use of this port is described in doc/or1k.texinfo. After

configuring and building GDB, go to this directory and use "make info", "make

html", "make pdf", "make ps" as required to build the document.

This interface supports both the proprietary OpenRISC Remote JTAG Protocol and

GDB Remote Serial Protocol.