[Openocd-development] [PATCH] process reset - ready for test

[Duane E. <op...@du...>]

[Oops - clicked too soon - this time with attachments]
-Duane.
------------

This is the thing Oyvind and Duane have been going back in forth for a 
while about.

Attached is:

1) a small tcl script that contains "new_process_reset" - see below.

2) a patch that adds the underlying functions to openocd so that the 
existing C function (target.c) target_process_reset() be written in TCL 
{see #1}

Next steps:
   (a) people try it - people like it.
   (b) remove 'target_process_reset'
   (c) merge the new 'tcl function[cleaned up of course] into 'startup.tcl'
    (d) arrange for it to be invoked in stead of 'target_process_reset()'

The plan - target_process_reset() instead - invokes some new TCL function.

Right now, I need people to try it (step a) I have limited hardware to 
test with.

Details follow.

-Duane.
==================================

How to test, what to use, etc.

a) checkout the latest openocd (ie: HEAD)

b)  Apply attached patch. (979)

d)   Build openocd in the standard way.

e)   Everything should still work in the standard way.
    Nothing should have changed :-(
    Nothing should be broken :-)

    If it is - stop now, do not continue.
    Please report the problems directly to the list.

------- NEW STUFF FOLLOWS -------

f)  This is where the file "new_reset.tcl" comes in.

For now, place this in your working directory (ie: same place  you keep 
'openocd.cfg')
Later, (step C above) this new file/function will be merged into 
startup.tcl (which is compiled into openocd)

Option 1: I prefer this method (makes it easier to test)
       At the GDB or TELNET prompt, type

      GDB:
           (gdb) mon source new_reset.tcl
      TELNET prompt
          > source new_reset.tcl

Option 2: This also works.
      In your 'openocd.cfg' file - add the line:
          source new_reset.tcl

g) Start openocd.

   If needed, "source" the new file.
   If you need to edit it - (modify, hack, etc) type "source FILENAME" 
to load it again - and again and again - till you get it right.

h) At the PROMPT, instead of typing "reset halt" or "reset init"

Type one of these commands instead:

        new_process_reset init
or     new_process_reset halt
or     new_process_reset run

This should - (famous last words) act identically to the 'reset' command.

Right now, the old 'reset' command still exists. No change there.
To use the new command, use "new_process_reset"
Today for testing purposes - both methods exist. 

We'll rename/fix that very shortly after we do some experiments with the 
different chips.

I've got only a few targets.
Others have -other targets
And you (dear reader) probably have others that I do not have.