Date: Fri, 19 Dec 2003 13:09:59 -0800 From: Peter Wemm <peter@wemm.org> To: Marcel Moolenaar <marcel@xcllnt.net>, Peter Wemm <peter@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/sys _null.h Message-ID: <200312191309.59556.peter@wemm.org> In-Reply-To: <20031219144258.GA82370@ns1.xcllnt.net> References: <200312151025.hBFAPIuc084643@repoman.freebsd.org> <20031219144258.GA82370@ns1.xcllnt.net>
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On Friday 19 December 2003 06:42 am, Marcel Moolenaar wrote: > On Mon, Dec 15, 2003 at 02:25:18AM -0800, Peter Wemm wrote: > > peter 2003/12/15 02:25:18 PST > > > > FreeBSD src repository > > > > Modified files: > > sys/sys _null.h > > Log: > > amd64 doesn't define __LP64__ in the compiler, but it definately > > needs this definition. It fixes gnome for starters. I haven't > > tried *emacs yet. Like IA64, amd64 uses registers for the first few > > arguments and then the stack for the rest. This means the 64 bit > > promotion of the NULL (0) value is lost and its just pushed on as > > an 'int' in a varargs call. > > Odd. I swear I tested amd64 and found that the promotion was still > there by virtue of the generated code. I guess not... It does, most of the time. gcc does some very funny things at times. The varargs stuff seems to be really good at tempting fate. -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5
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