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From: dens@stl.sarov.ru
To: gcc-gnats@gcc.gnu.org
Subject: c++/10782: undefined reference to `virtual thunk ...
Date: Wed, 14 May 2003 14:46:00 -0000 [thread overview]
Message-ID: <20030514143948.17526.qmail@sources.redhat.com> (raw)
>Number: 10782
>Category: c++
>Synopsis: undefined reference to `virtual thunk ...
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed May 14 14:46:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: dens@stl.sarov.ru
>Release: unknown-1.0
>Organization:
>Environment:
cat /proc/version
Linux version 2.4.18-14smp (bhcompile@stripples.devel.redhat.com) (gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)) #1 SMP Wed Sep 4 12:34:47 EDT 2002
cat /etc/issue
Red Hat Linux release 8.0 (Psyche)
Kernel \r on an \m
rpm -qa | grep gcc
gcc-gnat-3.2-7
gcc-objc-3.2-7
gcc-3.2-7
libgcc-3.2-7
gcc-g77-3.2-7
gcc-java-3.2-7
gcc-c++-3.2-7
>Description:
G++ doesn't generate virtual thunk for c21 destructor from attached sample:
nm gtest.o | grep c21D
000006e4 T _ZN3c183c193c21D0Ev
0000066a T _ZN3c183c193c21D1Ev
000005ec T _ZN3c183c193c21D2Ev
U _ZTv0_n16_N3c183c193c21D0Ev
U _ZTv0_n16_N3c183c193c21D1Ev
[dens@sr007lnx work]$ g++ gtest.cpp
gtest.cpp:69: warning: direct base `c0::c1' inaccessible in `c8' due to
ambiguity
/home/dens/tmp/ccbwnzlp.o(.gnu.linkonce.d._ZTC3c264_N3c183c193c21E+0x30): undefined reference to `virtual thunk [v:0,-16] to c18::c19::c21::~c21 [in-charge]()'
/home/dens/tmp/ccbwnzlp.o(.gnu.linkonce.d._ZTC3c264_N3c183c193c21E+0x34): undefined reference to `virtual thunk [v:0,-16] to c18::c19::c21::~c21 [in-charge deleting]()'
collect2: ld returned 1 exit status
NB in case when c26 constructor is "inline" thunk is not needed. It isn't good also.
>How-To-Repeat:
g++ gtest.cpp
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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next reply other threads:[~2003-05-14 14:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-14 14:46 dens [this message]
2003-05-14 15:11 bangerth
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