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Re: Signal hang
- To: "Matthew Brown" <mbrown at mediadb dot net>
- Subject: Re: Signal hang
- From: Mumit Khan <khan at NanoTech dot Wisc dot EDU>
- Date: Tue, 21 Dec 1999 18:58:52 -0600
- cc: cygwin at sourceware dot cygnus dot com
"Matthew Brown" <mbrown@mediadb.net> writes:
>
> I am attempting to build libstdc++ 2.90.6 with the following =
> configuration:
>
> - Windows NT4 sp3
> - cygwin full b20.1
> - Mumit's gcc 2.95.2 installed according to instructions
>
> The symptom is that when mknumeric_limits runs, it hangs in a loop (CPU =
> is chewed-up and nothing useful happens). When I dig into things, I find =
> that gen-num-limits.exe is where the loop is happening, and, when I dig =
> in farther, I find that the loop is in exception handling code. =
> gen-num-limits is trying to generate divide-by-zero and overflow errors =
> for various intrinsic types; this is where the problem is occurring.
> If I run gen-num-limits interactively (so it spews to the terminal), I =
> see that the behavior is not consistent; sometimes it chokes on =
> divide-by-zero for one type and sometimes for another.
Please see the libstdc++-v3 FAQ that talks about this. We had discussed
this issue in Cygwin developers list (the archives are on-line at
http://sourceware.cygnus.com/ml/cygwin-developers/), but no conclusion
reached as far as I know.
The workaround for now is to use my cygwin-limits package (I have yet
to upload the package for the latest snapshot, but will do so this
evening) and follow my instructions.
http://www.xraylith.wisc.edu/~khan/software/gnu-win32/libstdc++-v3.html
Regards,
Mumit
ps: Please leave out the HTML crud in mail messages.
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