[Simulavr-devel] [bug #40594] Store simulation parameters inside the ELF file

[Markus Hitter]

URL:
  <http://savannah.nongnu.org/bugs/?40594>

                 Summary: Store simulation parameters inside the ELF file
                 Project: Simulavr: an AVR simulator
            Submitted by: hitterm
            Submitted on: Fr 15 Nov 2013 22:12:16 GMT
                Category: Simulation
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: simulavr

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Details:

I found it a bit cumbersone to remember for each run of a simulation for which
device the binary was compiled for. Obviously, storing these parameters right
at compilation time makes running simulations easier.

I found simavr to have a nice concept: store these parameters in custom
sections of the ELF file. This way they're available to the simulator and get
ignored when uploaded to real hardware. On how to use it, see the comments in
src/simulavr_info.h (new file). It's really simple, at compilation time we
know best for which device we compile, after all.

For now this is a proof of concept. Storing parameters works fine, reading
them back, too, but instead of being used, they're simple written to the
console. For now the parameters are device type and cpu frequency, but the
concept can be extended easily to all other command line parameters. As soon
as the values are actually applied, the -d and -F command line parameters
become obsolete (but should override the stored info if given anyways for
those who know what they're doing).

The proof is applied to the simple_serial example.

Please find the patch attached and enjoy!



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File Attachments:


-------------------------------------------------------
Date: Fr 15 Nov 2013 22:12:16 GMT  Name:
0001-Allow-to-store-simulation-parameters-inside-the-ELF-.patch  Size: 8kB  
By: hitterm

<http://savannah.nongnu.org/bugs/download.php?file_id=29627>

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