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RE: pthreads support
- To: Heribert Dahms <heribert_dahms at icon-gmbh dot de>
- Subject: RE: pthreads support
- From: Mumit Khan <khan at NanoTech dot Wisc dot EDU>
- Date: Mon, 26 Mar 2001 17:10:38 -0600 (CST)
- cc: cygwin-apps at cygwin dot com, cygwin at cygwin dot com
On Mon, 26 Mar 2001, Heribert Dahms wrote:
> can you please give a short description or URL
> about what multithreading gcc would use?
> I always thought that only the worker subprocesses
> (cpp, cc1, ld, as) of the compiler driver may run
The GCC compilers and drivers are not multi-threaded, so you get no
benefit from that. The multi-threading interface in gcc is needed to
support thread-safe C++ exceptions (Java may need it too, but I know
next to nothing about the GCC Java front-end). Currently supported
interfaces are single (default for Cygwin for example), POSIX, Windows32,
DCE, and vxWorks. The Mingw compiler uses the Windows32, which, with a
slight change , it'll work with Cygwin as well, but I believe it'll
be better to avoid that and work on getting pthreads interface to work.
 In that case, you'll also need a helper DLL that every MT C++ code
links with, or need to add a small bit of code to Cygwin.