From: Daniel Jacobowitz <drow@false.org>
To: Andrew STUBBS <andrew.stubbs@st.com>
Cc: GDB List <gdb@sourceware.org>
Subject: Re: C++ Typedefs and symbol tables
Date: Mon, 20 Aug 2007 17:49:00 -0000 [thread overview]
Message-ID: <20070820174920.GA12384@caradoc.them.org> (raw)
In-Reply-To: <46C9D0E1.5080509@st.com>
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
next prev parent reply other threads:[~2007-08-20 17:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-20 17:11 Andrew STUBBS
2007-08-20 17:18 ` Daniel Jacobowitz
2007-08-20 17:35 ` Andrew STUBBS
2007-08-20 17:49 ` Daniel Jacobowitz [this message]
2007-08-20 18:12 ` Andrew STUBBS
2007-08-20 18:23 ` Daniel Jacobowitz
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