From: "Aaron W. LaFramboise" <aaronavay62@aaronwl.com>
To: Danny Smith <danny_smith_0000@yahoo.co.nz>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>, Christopher Faylor <me@cgf.cx>
Subject: Re: [Patch} Fix dynamic casts across dll boundaries on windows targets
Date: Tue, 19 Oct 2004 06:21:00 -0000 [thread overview]
Message-ID: <4174AF4B.2080307@aaronwl.com> (raw)
In-Reply-To: <20041016090410.17530.qmail@web50904.mail.yahoo.com>
Danny Smith wrote:
> 2004-10-16 Danny Smith <dannysmith@users.sourceforge.net>
>
> * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Define
> __GXX_MERGED_TYPEINFO_NAMES to 0.
Does this pessimize the case where typeinfo symbols really are
availible? An example might be when a DLL exports the typeinfo symbols
and they are linkable with auto-import. (Will auto-import work for
this, anyway?)
Another source for experience in this area is the recent ELF visibility
work. For example, see the secton Caveats in
<http://www.nedprod.com/programs/gccvisibility.html>. The suggestion
here is that if you want RTTI to work, you must take necessary steps to
export typeinfo symbols. Is a similar approach for PE unreasonable?
Aaron W. LaFramboise
next prev parent reply other threads:[~2004-10-19 6:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-16 9:47 Danny Smith
2004-10-17 22:25 ` Christopher Faylor
2004-10-19 6:21 ` Aaron W. LaFramboise [this message]
2004-10-19 10:52 ` Danny Smith
2004-10-21 3:59 ` Aaron W. LaFramboise
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