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Re: gc-sections and DWARF ranges

From: Daniel Jacobowitz <dan at codesourcery dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: binutils at sourceware dot org
Date: Fri, 22 Oct 2010 16:12:24 -0400
Subject: Re: gc-sections and DWARF ranges
References: <20101021214058.GW8337@caradoc.them.org> <4CC1B066.5000306@redhat.com>

On Fri, Oct 22, 2010 at 08:40:22AM -0700, Richard Henderson wrote:
> On 10/21/2010 02:41 PM, Daniel Jacobowitz wrote:
> > Is there any provision in GNU ld for this that I'm not seeing?  We
> > ought to remove discarded entries with knowledge of the .debug_ranges
> > output; I don't see how we can get this right otherwise.
> 
> Isn't this ideally handled with section groups?

Yes.  You'd have to generate a separate DW_TAG_compile_unit to go
along with each function; GDB gets confused when you do that (because
it thinks you have multiple source files with the same name) and a
bunch of tests fail.  But it's basically the right strategy.

-- 
Daniel Jacobowitz
CodeSourcery

References:
- gc-sections and DWARF ranges
  - From: Daniel Jacobowitz
- Re: gc-sections and DWARF ranges
  - From: Richard Henderson

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