On Sun, May 20, 2007 at 05:03:57PM +0200, Dag-Erling Smørgrav wrote: > Alexander Kabaev <[EMAIL PROTECTED]> writes: > > there were several reports of OpenSSL being broken when compiled with > > GCC 4.2. It turns out OpenSSL uses function casting feature that was > > aggressively de-supported by GCC 4.2 and GCC goes as far as inserting > > invalid instructions ON PURPOSE to discourage the practice. > > Is there a web page somewhere (or an archived mailing list discussion, > or whatever) which discusses the issue and explains the rationale for > intentionally generating incorrect code?
It happened in the past, e.g. with va_arg. In that case gcc creates explicit abort() calls, because it can't refuse the code (syntactically correct C), but the runtime behaviour is completely implementation defined. Joerg _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
