helpmake - Support: sr #106249, time the making of targets - new...


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sr #106249: time the making of targets - new feature

Submitted by:  None
Submitted on:  Fri 08 Feb 2008 02:39:46 PM UTC  
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  None
Privacy:  Public Assigned to:  None
Originator Email:  -email is unavailable- Open/Closed:  Open
Operating System:  None

Fri 08 Feb 2008 02:39:46 PM UTC, original submission:  

I use gnu make to run simulations and build firmware.
To build a ".bit" file I must first "synthesize", then
"place&route" the design. These two steps are sometimes
quite time consuming (hours), and a small change can have
a large inpact on the build time. Tracking the build time
can be good to indicate expressions that could be worth
rephrasing in the source code.
So i find my self timing the commands e.g.:

a.synt : a.vhd
   time synt @< > $@

a.bit : a.synt
   time par @< > $@

A useable feature to me would be a new Special Built-in Target Name: .TIME

Then I could just state:

.TIME : a.synt a.bit

and make could print out the time it took to run all commands
to make the target.

Could this be useful?

Regards /Pontus



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