Re: Difference in mangling

From: Lew Pitcher (Lew.Pitcher_at_td.com)
Date: 07/29/03 

Date: Tue, 29 Jul 2003 10:39:12 -0400

lomat wrote:
> Hello,
>
> I am using VisiBroker 4.0 on RedHat 8.0 with GCC 3.2.
>
> When I do a "nm liborb_r.so | grep _invoke", I get some output. The symbol
> of my intrest is manged as below,
> 002f6270 T _preinvoke__12CORBA_ObjectPCc
>
> Now when I build an app that links to liborb_r.so, and uses the _preinvoke
> API, GCC mangles this symbol as follows,
> U _ZN12CORBA_Object10_preinvokeEPKc
>
> In short, (as mangling is compiler dependent) my compiler is mangling the
> symbols in a way different from the compiler that was used to build the
> library I am trying to link to. As a result I am getting an un-resolved
> symbol error. How do I solve this?

IIRC, GCC 3 changed a number of C++ related things, including how it mangled
the names. Likely, liborb_r.so was compiled with GCC 2, so falling your
compiler back to GCC 2 might fix your mangling problem. 

-- 
Lew Pitcher, IT Consultant, Application Architecture
Enterprise Technology Solutions, TD Bank Financial Group
(Opinions expressed here are my own, not my employer's)

Relevant Pages

  • Difference in mangling
    ... API, GCC mangles this symbol as follows, ... (as mangling is compiler dependent) my compiler is mangling the ...
    (comp.unix.questions)
  • Re: Difference in mangling
    ... (as mangling is compiler dependent) my compiler is mangling the ... > falling your compiler back to GCC 2 might fix your mangling problem. ...
    (comp.unix.questions)
  • Re: Whats the story with the "end of XP"?
    ... Support gives them access to the larger body ... The same compiler suite may be "best" in both ... In the case of ByteCraft compilers, you are truly expert in your field, you work closely and rapidly with customers if there are any issues, and you have top class testing and quality control. ... understanding the inner workings of a relatively simple compiler like GCC ...
    (comp.arch.embedded)
  • [RFC][PATCH-2.6] Clean up and merge compiler-*.h
    ... the kernel headers in include/linux to include/linux-abi. ... * Common definitions for all gcc versions go here. ... -/* Some compiler specific definitions are overwritten here ...
    (Linux-Kernel)
  • Re: LPC900/80C51 Compiler Toolchain
    ... >> supported by GCC, and so they invest. ... > if they already have their in-house compiler. ... one of the main companies in the Symbian consortium ... vendor to provide a good compiler for Atmel AVRs and eventually became ...
    (comp.arch.embedded)