• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Digital Implementation
  3. TCL

Stats

  • Locked Locked
  • Replies 6
  • Subscribers 92
  • Views 14510
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

TCL

Brian Harrison
Brian Harrison over 15 years ago

Hello,

Is there a proper way to load a dynamically loadable TCL extension in encounter?

example:  www.swig.org/tutorial.html

When I complile the above example and try to load it within encounter I get:

couldn't load file "./example.so": ./example.so: cannot open shared object file: No such file or directory

This works fine within a normal tcl shell.

On a previous project I wrote crude placement algorithm in TCL using encounter commands.  This was done to overcome limitations with encounter clock tree synthesis with IBM ASIC methodology.   The algorithm worked great, but was slow since being in TCL.   I could speed this up in C/C++ using SWIG to create the TCL wrapper.  

Any help?

Best Regards,

Brian

 

  • Cancel
Parents
  • Brian Harrison
    Brian Harrison over 15 years ago

    Excellent!  Thanks Bob and your TCL blackbelts. When using the example on how to create a TCL extension from:  http://www.swig.org/tutorial.html

    add -m64 to the gcc command so it will load in encounter 64bit:

     

    unix % gcc -fpic -c -m64 example.c example_wrap.c -I/usr/local/include 
    unix % gcc -shared -m64 example.o example_wrap.o -o example.so
     
     
    Best Regards,
    Brian 

     
     
     
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • Brian Harrison
    Brian Harrison over 15 years ago

    Excellent!  Thanks Bob and your TCL blackbelts. When using the example on how to create a TCL extension from:  http://www.swig.org/tutorial.html

    add -m64 to the gcc command so it will load in encounter 64bit:

     

    unix % gcc -fpic -c -m64 example.c example_wrap.c -I/usr/local/include 
    unix % gcc -shared -m64 example.o example_wrap.o -o example.so
     
     
    Best Regards,
    Brian 

     
     
     
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information