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Date: Mon, 20 Dec 2010 21:45:00 -0000
From: Richard Henderson <rth@redhat.com>
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To: IainS <developer@sandoe-acoustics.co.uk>
CC: GCC Patches <gcc-patches@gcc.gnu.org>, Mike Stump <mrs@gcc.gnu.org>,        Jakub Jelinek <jakub@redhat.com>
Subject: Re: [Patch Debug] Emit pubnames for reorder & partition case.
References: <56186808-25DF-4EB9-AED6-3EDF309FEAA6@sandoe-acoustics.co.uk>
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On 12/20/2010 03:18 AM, IainS wrote:
> +		  /* There is no real support in DW2 for this .. so we make
> +		     a work-around.  First, emit the pub name for the segment
> +		     containing the function label.  Then make and emit a
> +		     simplified subprogram DIE for the second segment with the
> +		     name post-fixed with _$hot$ or _$cold$.  We use the same
> +		     linkage name for the second die so that gdb will find both
> +		     sections when given "b foo".  */

This doesn't work when $ is not allowed, aka NO_DOLLAR_IN_LABEL.
Presumably we need this workaround since Darwin is strict dwarf2?


r~