From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-413098-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 13427 invoked by alias); 23 Jan 2013 20:15:00 -0000
Received: (qmail 13241 invoked by uid 48); 23 Jan 2013 20:14:32 -0000
From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libitm/55693] [4.8 Regression] libitm.c++/eh-1.C execution test fails on darwin from r193271
Date: Wed, 23 Jan 2013 20:15:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libitm
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: iains at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.8.0
X-Bugzilla-Changed-Fields:
Message-ID: <bug-55693-4-7uilv5dKLL@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-55693-4@http.gcc.gnu.org/bugzilla/>
References: <bug-55693-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2013-01/txt/msg02217.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55693

--- Comment #33 from Iain Sandoe <iains at gcc dot gnu.org> 2013-01-23 20:14:26 UTC ---
(In reply to comment #32)
> (In reply to comment #31)
> 
> > solution on darwin is to mark the duplicate symbols in crttme.o as weak.
> 
> seems reasonable - can you try that?

... except that all those symbols should already be weak:

/* Provide dummy functions to satisfy linkage for versions of the Darwin 
   tool-chain that that can't handle undefined weak refs at the link stage.
   ??? Define these dummy functions only when !HAVE_ELF_STYLE_WEAKREF. */

extern void *__cxa_allocate_exception (size_t) WEAK;
extern void __cxa_throw (void *, void *, void *) WEAK;
extern void *__cxa_begin_catch (void *) WEAK;
extern void *__cxa_end_catch (void) WEAK;
extern void __cxa_tm_cleanup (void *, void *, unsigned int) WEAK;

extern void *_ZnwX (size_t) WEAK;
extern void _ZdlPv (void *) WEAK;
extern void *_ZnaX (size_t) WEAK;
extern void _ZdaPv (void *) WEAK;

typedef const struct nothrow_t { } *c_nothrow_p;

extern void *_ZnwXRKSt9nothrow_t (size_t, c_nothrow_p) WEAK;
extern void _ZdlPvRKSt9nothrow_t (void *, c_nothrow_p) WEAK;
extern void *_ZnaXRKSt9nothrow_t (size_t, c_nothrow_p) WEAK;
extern void _ZdaPvRKSt9nothrow_t (void *, c_nothrow_p) WEAK;