Re: gnat 3.15p/Windows and tasking bug

["Alex R. Mosteo" <devnull@mailinator.com>]

michael bode wrote:

> I (and Google) remember a discussion about a bug in gnat 3.15p for
> Windows regarding tasking and delay statements that delay much longer
> than they should sometimes. What I don't remember and also did not
> find through Google was a precise description and if there was a
> workaround or some success using gcc-gnat 3.4.x (3.4.5 is the current
> MinGW version I think).
> 
> To be precise I found references to TWO such bugs one of them was
> limited to rather old mainboards or chipsets. I'm searching for
> information on the other bug.

I keep a copy of my old patch for gnat 3.15p/win. You could try comparing
these files to the original ones to find the diffs, and also compare them
to the mingw ones. I think that 3.15p was still 2.x based, so maybe they're
too different.

Anyhow, the files are here:

https://svn.mosteo.com/public/adagio/gnatpatch/

I strongly suspect the only one with modifications is s-tasren.adb, the
others are simply there because they had to be recompiled because of
dependencies. However this is just a fuzzy recall.

What I can say is that when recompiling these files and linking them with my
program, the bug went away. I received two different patches, but can not
remember their origins. I kept the most recent one, the older one caused
some other bug.

To compile, gnatmake -u -a *.ad? and then include the objects for linking.
The other way is to recompile the entire gnat runtime with the patched
sources. I preferred the first way so I was sure that any stock unmodified
3.15p installation would serve.

Hope this helps.