Daniel Jacobowitz - Re: [PATCH][C++] Fix PR29433, make C++ use a lot less time/memory (original) (raw)

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• From: Daniel Jacobowitz
• To: Michael Matz
• Cc: Mark Mitchell , Richard Guenther , Gabriel Dos Reis , gcc-patches at gcc dot gnu dot org
• Date: Tue, 20 Feb 2007 09:37:31 -0500
• Subject: Re: [PATCH][C++] Fix PR29433, make C++ use a lot less time/memory
• References: 20061211155733.GA2660@nevyn.them.org Pine.LNX.4.64.0612111658590.29962@wotan.suse.de 20061211174548.GA7094@nevyn.them.org Pine.LNX.4.64.0612121519200.29962@wotan.suse.de 20061212150652.GA18750@nevyn.them.org Pine.LNX.4.64.0612121723070.29962@wotan.suse.de 457EF130.5040902@codesourcery.com Pine.LNX.4.64.0612131535100.29962@wotan.suse.de 4580405A.4000109@codesourcery.com <Pine.LNX.4.64.0702201500170.25448@wotan.suse.de>

Thanks for doing this! But unfortunately...

On Tue, Feb 20, 2007 at 03:24:20PM +0100, Michael Matz wrote:

•   .string "_Ios_Openmode"

•   .string "std::_Ios_Openmode"

•   .string "new_allocator<char>"

•   .string "__gnu_cxx::new_allocator<char>"

These are more incorrect than the current names. They're inside a DW_TAG_namespace scope, so GDB goes to a lot of trouble to prepend the namespace to the specified name. It'll get std::std::_Ios_Openmode and I think that's the right interpretation of this debug info.

Is there some way we can lose the initial scope?

•   .string "._16"

•   .string "<anonymous struct>::<anonymous union>"

(dunno about this one, maybe it shouldn't have a DW_AT_name at all?)

-- Daniel Jacobowitz CodeSourcery

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