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C++ Exceptions in Multithreaded Applications Crash


This has been submitted to GCC GNATS as PR/7168.

Using the G++ exception system from multiple threads corrupts the gcc's internal exception stack, due to not including the thread-specific exception context in the compile.
GCC Version: 2.95.3-5 from default Cygwin install.

I tried to re-compile gcc with --enable-threads=posix and with --enable-sjlj-exceptions
with no results. The following program is used to determine if the exception context is thread-specific or not:


Attachment: gcc_exception.C
Description: Text document



This prevents any sort of complex exception-sensitive multithreaded C++ programs to run in Cygwin/GCC environment.

Thanks for all your help,
Lenny


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