Re: Profiling a "make" invocation

[Paul Smith]

On Tue, 2011-06-21 at 14:46 +0100, Mark Marshall wrote:
> I have a fairly large project that is built using make.  It takes a few 
> minutes to build, and I'm interested in where this time is going.  Is 
> there a standard way to profile a make run?
> 
> (For the avoidance of doubt, I'm not interested in profiling the actual 
> make executable, but rather the processes that it runs, 50% in gcc, 40% 
> in as, 10% in ld, etc...).

There's nothing like that available today.  However, you can do it
yourself pretty simply, I think.

For example if you make yourself a little shell script something like
this:

        #!/bin/sh
        time "$@"

(don't forget to make it executable!) then you set the make variable
SHELL to point to your script, it should show the time spent running
each invoked command.

(note, not tested!)