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From: <ams AT ludd DOT ltu DOT se>
Message-Id: <200411111008.iABA89dA009815@speedy.ludd.ltu.se>
Subject: Re: Alignment problem on Windows XP
In-Reply-To: <01c4c768$Blat.v2.2.2$4dcfb280@zahav.net.il> "from Eli Zaretskii
 at Nov 10, 2004 10:59:24 pm"
To: djgpp-workers AT delorie DOT com
Date: Thu, 11 Nov 2004 11:08:09 +0100 (CET)
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According to Eli Zaretskii:
> The short test program attached at the end of this message prints
> zero values on Windows 98, but a user who tried it on XP told me it
> printed "4", which means that __attribute__((__aligned__)) is not
> working on XP.

...

> #define GCTYPEBITS 3
> #  define DECL_ALIGN(type, var) \
>     type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
> 
> struct SS
> {
>   char *ptr;
>   long nr;
> };
> 
> 
> DECL_ALIGN (struct SS, ss1);
> DECL_ALIGN (struct SS, ss2);
> DECL_ALIGN (struct SS, ss3);
> DECL_ALIGN (struct SS, ss4);

FWIW, on WINDOWS 2000 and with gcc 2.952, gcc warns while compiling
that the alignment of ss* "is greater than maximum object file
aligment. Using 4."


Right,

						MartinS