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Re: C++ Typedefs and symbol tables
On Mon, Aug 20, 2007 at 06:35:29PM +0100, Andrew STUBBS wrote:
> Daniel Jacobowitz wrote:
> > Check whether you are ending up with a search based on the function's
> > symbol or minsym. The mangled name always uses the canonical type
> > name (for obvious ABI reasons).
>
> Symbol or minsym? Sorry, I'm not at all familiar with this area of the
> debugger.
Symbols come from .debug_info and have type information. minsyms come
from the ELF .symtab section, and do not.
> > Yes, but it's a lot of work. We can not currently canonicalize
> > anything during lookup because we do not canonicalize during symbol
> > reading; and just turning that on slows things down considerably. The
> > cp-names.y parser was intended for exactly this.
>
> Surely converting the (typically) 2-3 typenames in a signature, such that they
> match the canonical form used by the ABI, would not take much time, would it?
2-3 typenames is not typical, in C++ programs. It added around 30%
time in my testing.
--
Daniel Jacobowitz
CodeSourcery