| Commit message (Collapse) | Author | Age | Files | Lines |
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PR 433/tools
* mips-stub.c: Patch from C. M. Heard <heard@pobox.com> described as:
The purpose of the patch is to make the stub ignore all
characters except '+' (ack) or '-' (nak) when it has transmitted a
packet and expects an acknowledgment. Without the patch,
putpacket() will retransmit each time it receives anything other
than '+' when expecting an ack, and that, bitter experience has
found, frequently results in the stub failing to sync up when
initially attaching to gdb.
I think that rtems users will notice significant improvement in
the of the mips stub if this patch is incorporated in the
distribution; certainly I did in my stand-aline environment. I
should hasten to add that it is only an improvement and not a 100%
cure for synchronization problems because '+' characters can (and
do) during as message data, and it's still possible for these to
be mistaken as acks. I have no idea how to fix that short of
redesigning the gdb-remote protocol.
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* mips-stub.c: Removed warnings.
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* rtems-stub-glue.c: Removed should only be common copy.
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* mips-stub.c: Re-debugged a breakpoint problem, zbreak target
address was a char * which caused the target instruction to not
be fully copied, so the zbreak logic corrupted the original
instruction and didn't insert a valid break instruction.
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* mips-stub.c: Removed warnings.
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* mips-stub.c: Debugged & tweaked the gdb command processing,
zbreak stuff, breakpoint and step code. Implemented 'T' command
support and debugged remote gdb support w/ the Mongoose bsp.
Added the memory segment support.
* memlimits.h: Disabled all contents in favor of memory sement
support. This file could probably go away.
* rtems-stub-glue.c (rtems_gdb_index_to_stub_id()): New routine.
rtems_gdb_stub_get_register_from_context(): Implemented MIPS version.
rtems_gdb_stub_get_offsets(): Implemented MIPS version.
* README: Updated.
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* ChangeLog: Corrected previous entry.
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* shared/gdbstub/README: Added text.
* shared/gdbstub/mips-stub.c: Modified isr install routine to
capture all exceptions.
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* Significant modifications including adding thread support, the 'X'
command, and reorganizing so that target CPU independent routines
could be reused.
* gdb_if.h: Added numerous prototypes.
* mips-stub.c: Added thread support as well as 'X' command.
Also noticed that the 'P' command was from the mips protocol.
* rtems-stub-glue.c: New file. This file contains all generic
support which should be able to be reused on another target CPU.
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* mips-stub.c (handle_exception): Prototype changed to be an RTEMS
entry point. Added comments about possible need to flush cache.
(mips_gdb_stub_install): New routine.
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* Makefile, stubinit.S, r46kstub.ld, ioaddr.h: Removed as unused
with RTEMS.
* r46kstub.c: Renamed to mips-stub.c.
* mips-stub.c: New file -- was r46kstub.c.
* memlimits.h: New file was limits.h.
* limits.h: Removed.
* r4600.h: Eliminated need for this file.
* README: Updated.
* gdb_if.h: Added CVS Id.
* mips-stub.c: Attempt to deal with MIPS1 versus MIPS3.
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* Merged r46kstub.c into RTEMS distribution without modification.
I got the code from Franz Fischer <Franz.Fischer@franz-fischer.de>
who had used this with an old version of RTEMS with the mips64orion
port of RTEMS. After adding this to the repository, I will tailor
this to work with the RTEMS exception processing model and trim
no longer needed parts.
* ChangeLog, gdb_if.h, ioaddr.h, limits.h, Makefile, mips_opcode.h,
r4600.h, r46kstub.c, r46kstub.ld, README, stubinit.S:
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