Date: Wed, 10 Jul 2002 16:19:10 -0700 From: Peter Wemm <peter@wemm.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Dag-Erling Smorgrav <des@ofug.org>, Giorgos Keramidas <keramida@FreeBSD.ORG>, current@FreeBSD.ORG Subject: Re: sparc64 tinderbox failure Message-ID: <20020710231910.484373808@overcee.wemm.org> In-Reply-To: <200207102122.g6ALMCi1004528@apollo.backplane.com>
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Matthew Dillon wrote:
>
> :
> :Giorgos Keramidas <keramida@FreeBSD.org> writes:
> :> How does this look for fixing this warning?
> :
> :No, gcc should accept a NULL format string for err(3). It looks like
> :__printf0like is broken.
> :
> :DES
> :--
> :Dag-Erling Smorgrav - des@ofug.org
>
> Oops. I've already starting changing the calls to err().
Please do not. gcc is just a tool. If it emits a warning on some arches
because gcc doesn't understand how our libraries work, then we should
disable the gcc checking for those arches on those functions. ie: remove
the __printf0like completely for #ifdef sparc64 for err() etc.
eg:
--- cdefs.h 2002/07/08 16:43:35 1.56
+++ cdefs.h 2002/07/10 23:18:10
@@ -174,9 +174,9 @@
__attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
#endif
/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
-#if __FreeBSD_cc_version >= 300001
+#if __FreeBSD_cc_version >= 300001 && !defined(__sparc64__)
#define __printf0like(fmtarg, firstvararg) \
__attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
#else
#define __printf0like(fmtarg, firstvararg)
This is much much less disruptive than slashing through userland and
"fixing" something that is already perfectly correct and legal.
Cheers,
-Peter
--
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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