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Re: Patch to fix PR9861


Ian Lance Taylor <ian@airs.com> writes:

> TJ Laurenzo <tlaurenzo@gmail.com> writes:
> 
> > The attached patch corrects PR9861 by including the return type in
> > mangled names in the C++ and Java compilers for Java class methods. 
> > This changes the ABI for Java types but does not make any changes to
> > C++ programs that do not access Java types.
> 
> How is the demangler going to work with this patch?  Is there any way
> for the demangler to determine which names are Java names and which
> are C++ names?  I don't see any obvious way, though I haven't looked
> that hard.

By the way, considering the demangler is not an unimportant point as
any ambiguity in demangling is an ambiguity that can be happen when
linking C++ and Java code together.  For example, your proposed
mangling for
    java.lang.Math.acos(double)
appears to be
    _ZN4java4lang4Math4acosEdd
which is the mangled name which will be used for the C++ function
    java::lang::Math::acos(double, double)

Ian


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