Re: debugging parallel make

[Paul Smith]

On Sun, 2008-01-06 at 02:05 -0500, Dan McMahill wrote:
> I'm looking for something along the lines of
> 
> [slot1] cc -c file1.c
> [slot2] cc -c file2.c
> [slot2] cc -c file3.c
> [slot1] cc -c file4.c
> 
> where the [slot1] and [slot2] indicate which job slot is being fed a 
> command.

You can't, because make doesn't keep a list of slots like this.  You can
read more details about how the jobserver works on my website below, but
in short make reads a single character token from a pipe and when it
gets one, that allows make to run a job.  All the tokens look exactly
the same so there's no way for make to know which slot is being used.

-- 
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 Paul D. Smith <address@hidden>          Find some GNU make tips at:
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