---- Reported by robertj@gmx.net 2006-08-26 12:55:58 MST ----

Cygwin.dll seems to overwrite Mono's SIGSEGV SEH handler.
This leads to a crash every time a SIGSEGV occurs while
running jited managed code.

Solution: add -mno-cygwin to mono.pc's cflags in order
to protect embedders from losing their minds :-)

The bug does *not* affect Mono's binaries, because they are
actually compiled with -mno-cygwin.


Test case:

unmanaged:

/*
 * gcc mymono.c `pkg-config --cflags --libs mono`
 */
#include <mono/metadata/assembly.h>

int
mono_main (int argc, char **argv);

int
main (int argc, char **argv)
{
    return mono_main (argc, argv);
}

managed:

/*
 * nre.cs
 */

class T {
    static void Main ()
    {
        null.Equals (null);
    }
}

run:

1) copy mymono.exe into Mono's bin directory
2) mymono nre.exe



---- Additional Comments From vargaz@gmail.com 2006-08-31 08:20:23 MST ----

Fixed in SVN.



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