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<== Date ==> <== Thread ==>

Subject: Re: Access to device support debugging vars via iocsh (3.14b2)
From: Till Straumann <[email protected]>
To: Eric Norum <[email protected]>
Cc: "S. Joshua Stein" <[email protected]>, [email protected]
Date: Tue, 20 Aug 2002 12:10:05 -0700
Eric Norum wrote:

I should also point out that Til Strauman <[email protected]> has implemented a full C-expression parser + lookup utility for
RTEMS. I've not had time to see how hard it would be to integrate this into iocsh.

Well this should not be too hard. However, there are a few things:


- licensing issues. It seems that migrating to the new license is very complicated
for SLAC. We're not there yet. Plus, I don't know if I can release 'cexp' under
the EPICS open license or the LGPL. I have no clue who would have to give
the respective authorization.


- cexp currently only supports ELF. However, I am working on using BFD
  instead of libelf, which has several advantages:
  - support for more binary formats
  - implementing a runtime loader should be easy
  - we get a disassembler for free
  As a matter of fact, I am pretty close to having an alpha version.

- instead of integrating cexp into iocsh, it might be easier to keep the utilities
separate (cexp is also targetted for plain RTEMS systems without EPICS).
I simply register cexp with the iocsh and hence can switch between both .


-- Till

I keep hoping that Til will get tired of waiting for me and merge this himself :-)


-- Eric Norum <[email protected]> Department of Electrical Engineering University of Saskatchewan Saskatoon, Canada. Phone: (306) 966-5394 FAX: (306) 966-5407





References:
Re: Access to device support debugging vars via iocsh (3.14b2) Eric Norum

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