Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 22 Sep 2002 23:19:17 -0700
From:      Alfred Perlstein <bright@mu.org>
To:        Peter Wemm <peter@FreeBSD.org>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/alpha/pci tsunamireg.h src/sys/boot/ia64/skiload main.c src/sys/i386/include npx.h src/sys/ia64/include reg.h signal.h src/sys/sys cdefs.h
Message-ID:  <20020923061917.GG6262@elvis.mu.org>
In-Reply-To: <200209230555.g8N5tBCP031090@freefall.freebsd.org>
References:  <200209230555.g8N5tBCP031090@freefall.freebsd.org>

next in thread | previous in thread | raw e-mail | index | archive | help
* Peter Wemm <peter@FreeBSD.org> [020922 22:55] wrote:
> peter       2002/09/22 22:55:11 PDT
> 
>   Modified files:
>     sys/alpha/pci        tsunamireg.h 
>     sys/boot/ia64/skiload main.c 
>     sys/i386/include     npx.h 
>     sys/ia64/include     reg.h signal.h 
>     sys/sys              cdefs.h 
>   Log:
>   At great personal risk, add a __packed and __aligned(x) define that
>   expand to __attribute__((packed)) and __attribute__((aligned(x)))
>   respectively.  Replace the handful of gcc-ism's that use
>   __attribute__((aligned(16))) etc around the kernel with __aligned(16).
>   
>   There are over 400 __attribute__((packed)) to deal with, that can come
>   later.  I just want to use __packed in new code rather than add more
>   gcc-ism's.

I really like what you've done, however don't you think that the
places that do not have __packed/__aligned shouldn't have it defined
to nothing...  therefore you can add:

#ifndef __packed
#error you must define __packed or bad things will happen
#endif
#ifndef __aligned
#error you must define __aligned or bad things will happen
#endif

Otherwise people may get compiled but very broken code
which most likely will be in critical things like device
drivers.

-- 
-Alfred Perlstein [alfred@freebsd.org]
'Instead of asking why a piece of software is using "1970s technology,"
 start asking why software is ignoring 30 years of accumulated wisdom.'

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020923061917.GG6262>