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From: lei@ca.ibm.com
To: gcc-gnats@gcc.gnu.org
Cc: michaelw@ca.ibm.com
Subject: c++/9734: nearly empty-class not recognized in dump file
Date: Mon, 17 Feb 2003 22:26:00 -0000 [thread overview]
Message-ID: <20030217221604.16052.qmail@sources.redhat.com> (raw)
>Number: 9734
>Category: c++
>Synopsis: nearly empty-class not recognized in dump file
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Feb 17 22:26:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: Lei Huang
>Release: GCC Version: 3.2.0
>Organization:
>Environment:
System Type:
Linux Version 2.4.19 SuSE SLES 8 (ppc) - Kernel 2.4.19-ul1-ppc64-SMP (36).
GNU assembler version 2.12.90.0.15 (powerpc-suse-linux) using BFD version 2.12.9
0.0.15 20020717 (SuSE)
Options given when GCC was configured/built:
Configured with: /usr/src/packages/BUILD/cross-ppc64-gcc-3.2/gcc-3.2/configure -
-enable-languages=c,c++,f77 --prefix=/opt/cross --host=powerpc-suse-linux --targ
et=powerpc64-linux --enable-threads=posix --disable-nls --enable-shared --with-h
eaders=/usr/src/packages/BUILD/cross-ppc64-gcc-3.2/include-ppc64-glibc-2.2.5
Thread model: posix
gcc version 3.2
>Description:
nearly empty-class D not identified in dump class hierarchy file.
Sourc code for a.cpp:
------------------------------------------------
struct A {
static int aval;
};
int A::aval=0;
struct B : A {};
struct C : A {};
struct D : B, C {
virtual void v1(){};
};
D d;
------------------------------------------------
Actual class hierarchy for D (within a.cpp.class):
------------------------------------------------
Class D
size=8 align=4
D (0x40092c40) 0
vptr=((&D::_ZTV1D) + 8)
B (0x40092c80) 0 empty
A (0x40092cc0) 0 empty
C (0x40092d00) 4 empty
A (0x40092d40) 4 empty
------------------------------------------------
Expected class hierarchy for D (within a.cpp.class):
------------------------------------------------
Class D
size=8 align=4
D (0x00000000) 0 nearly-empty
vptr=((&D::_ZTV1D) + 8)
B (0x00000000) 0 empty
A (0x00000000) 0 empty
C (0x00000000) 4 empty
A (0x00000000) 4 empty
------------------------------------------------
>How-To-Repeat:
g++ -fdump-class-hierarchy -c a.cpp
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
reply other threads:[~2003-02-17 22:26 UTC|newest]
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