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Re: _ZTV vs _ZTI

From: Andrew Haley <aph at redhat dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Tue, 27 Mar 2007 10:51:00 +0100
Subject: Re: _ZTV vs _ZTI
>to: viet@horslimites.org
References: <39242.198.73.165.1.1174952441.squirrel@courrier.horslimites.org>

viet@horslimites.org writes:
 > 
 > I have an archive file, when I do a nm on it, I can see.
 > 
 > 00000000 V _ZTV13VLH_Container

vtable for VLH_Container

 > the compile option to create the objects for the archive (.a) is
 > 
 > gcc -c -Wno-ctor-dtor-privacy  -fno-rtti -MMD -pthread -Wno-deprecated
 > -Wall -O2
 > 
 > I have an .so that link with the above archive, when I do an nm on it, I
 > can see:
 >          U _ZTI13VLH_Container

typeinfo for VLH_Container

 > the compile option to creates objects for the .so is
 > 
 > g++ -pipe -Wall -fPIC -rdynamic -g
 > 
 > I'm guessing that the problem for the undefined symbol is a compile
 > option. What is the difference between _ZTV and _ZTI?

They're totally different things.

Andrew.

References:
- _ZTV vs _ZTI
  - From: viet

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