Date: Sun, 9 Apr 2000 11:31:03 +0200 From: Mirko Viviani <mirko.viviani@rccr.cremona.it> To: Mike Heffner <spock@techfour.net> Cc: current@FreeBSD.org Subject: Re: 4.0 possible compiler bug ? Message-ID: <200004090931.LAA02968@rccr.cremona.it> In-Reply-To: <XFMail.20000408211158.mheffner@mailandnews.com> References: <XFMail.20000408211158.mheffner@mailandnews.com>
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On Sat, 08 Apr 2000, Mike Heffner wrote:
> | I'm testing the __builtin_apply() to make a patch to GNUstep, but I'm
> | getting
> | in troubles.
>
> Since you're on the subject, there are also two other bugs with
> __builtin_apply() in FBSD that I know of.
Always better... :(
> The easy hack to fix 2 is to remove FP_X_INV from the floating point mask
> -- but this is not the right way to do it. 1 can be fixed by passing a
> pointer of a float.
Exactly how to do that ?
> I tried investigating into it a while back, but didn't have any luck. I
> know that 2 isn't a problem in 3-stable.
If we'are not able to fix it I'm forced to change OS... I need GNUstep.
I have tested the prg with NEXTSTEP cc 2.5.8 that uses the same behaviour
for these things, it does not crash and return a pointer for the struct on
the stack.
CC differences:
argframe: NS 8 bytes, FBSD 16 bytes
struct on the stack: NS up to 4 bytes, FBSD up to 8 bytes.
If it helps someone here is the asm generated by cc on NS.
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Bye,
Mirko <mirko.viviani@rccr.cremona.it> (NeXTmail, MIME)
<mirko@yourbox.net>
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