From: Zack Weinberg <zack@codesourcery.com>
To: Geoffrey Keating <geoffk@geoffk.org>
Cc: gcc@gcc.gnu.org
Subject: Re: Darwin assert.h / shared libgcc mess
Date: Tue, 16 Nov 2004 03:49:00 -0000 [thread overview]
Message-ID: <87fz3aptq4.fsf@codesourcery.com> (raw)
In-Reply-To: <m2brdy21jg.fsf@greed.local> (Geoffrey Keating's message of "15 Nov 2004 14:24:51 -0800")
Geoffrey Keating <geoffk@geoffk.org> writes:
>> 2) Put __eprintf back into the shared libgcc, as an exported symbol,
>> for all !inhibit_libc targets, so that fixincludes can rely on its
>> being there. (If we instead use __assert, then __eprintf will
>> remain a static-library-only backward compatibility symbol.)
>
> Is this really necessary? I'd rather have __eprintf linked into only
> those apps that need it.
Right now, any shared library that uses assert will fail to link.
_Something_ has to be done. I'm open to alternative suggestions.
>> 5) Determine for certain whether or not Darwin ld supports symbol
>> versioning. Correct t-slibgcc-darwin to use the appropriate mkmap
>> file and to actually apply the map to the generated libgcc.dylib.
>
> The Darwin ld does not support symbol versioning. You can safely delete
> any versioning files for Darwin (so long as it doesn't break the makefiles).
Okay, so t-slibgcc-darwin ought to be using mkmap-flat.awk and
-exported_symbols_list. Thanks for the clarification.
>> i) Nudzh the Darwin developers to put __assert in libSystem and
>> provide a correct /usr/include/assert.h (y'all can just copy it
>> from FreeBSD! Only with attribute noreturn, please).
>
> In Tiger, /usr/include/assert.h will be provided by Libc, not the
> compiler, and it will use __assert.
Good.
zw
next prev parent reply other threads:[~2004-11-15 23:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-15 21:43 Zack Weinberg
2004-11-15 22:42 ` Geoffrey Keating
2004-11-16 3:49 ` Zack Weinberg [this message]
2004-11-22 22:50 ` Geoff Keating
2004-11-22 23:57 ` Zack Weinberg
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