RFA: Please review the new C++ demangler patch

H. J. Lu hjl@lucon.org
Wed Jun 25 21:41:00 GMT 2003


On Wed, Jun 25, 2003 at 11:07:30AM -0700, Zack Weinberg wrote:
> "H. J. Lu" <hjl@lucon.org> writes:
> 
> >> 
> >> So you want to have two copies of the demangler?  Or how do you
> >> propose to get the demangler into libstdc++?
> >
> > There are always 2 C++ demanglers. One is in libiberty and the other
> > is in libstdc++.
> 
> There's always going to be two copies of the object, since it is
> expected to appear in both libraries.  I'm talking about the source
> code.  Are there two copies of the source code?  If there are, explain
> how you propose to guarantee that they are kept in sync.  If there are
> not, explain how you get the object file included in both libiberty
> and libstdc++ without introducing circular build dependencies.

There will be only one source with my patches applied. Both libiberty
and libstdc++ will use the one in demangler. During the demangler
build, it will remove the old one in libiberty and put the new one
in. libstdc++ will make symlinks of source codes from demangler during
build. In fact, the object files in libiberty and libstdc++ are
different since they are compiled with different compiler options.


H.J.



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