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Re: Question on symbol versioning

From: Ian Lance Taylor <iant at google dot com>
To: "Amker.Cheng" <amker dot cheng at gmail dot com>
Cc: binutils at sourceware dot org
Date: Fri, 13 Aug 2010 21:35:00 -0700
Subject: Re: Question on symbol versioning
References: <AANLkTi=hZXdoO48UB1aPRoFHqX9H1OZds9VKdi3rSQqe@mail.gmail.com> <mcrpqxma7n5.fsf@google.com> <AANLkTim1ve2TJk7jHj9hZew9yrxG6gYPO1XPEY_uNxHb@mail.gmail.com>

"Amker.Cheng" <amker.cheng@gmail.com> writes:

> Well, the only question is which one the base definition is. that paragraph
> is not clear enough for me.

The base version definition in an executable or shared library is the
one with VER_FLG_BASE set in the vd_flags field of a Verdef structure in
the SHT_GNU_verdef section aka the data to which DT_VERDEF/DT_VERDEFNUM
dynamic tags point.  VER_FLG_BASE has the value 1.  There is a bit of
documentation at
http://docs.sun.com/app/docs/doc/819-0690/chapter6-93046?l=en&a=view .

Ian

Follow-Ups:
- Re: Question on symbol versioning
  - From: Amker.Cheng

References:
- Question on symbol versioning
  - From: Amker.Cheng
- Re: Question on symbol versioning
  - From: Ian Lance Taylor
- Re: Question on symbol versioning
  - From: Amker.Cheng

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