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Re: DWARF register numbering discrepancy on SPARC between GCC and GDB
- From: Rainer Orth <ro at techfak dot uni-bielefeld dot de>
- To: Joel Brobecker <brobecker at adacore dot com>
- Cc: gcc at gcc dot gnu dot org, gdb at sourceware dot org
- Date: 21 Jan 2009 13:00:16 +0100
- Subject: Re: DWARF register numbering discrepancy on SPARC between GCC and GDB
- References: <20090121110847.GU5709@adacore.com>
Joel Brobecker <brobecker@adacore.com> writes:
> However, when I tried to find some kind of official document
> to confirm this numbering, I only found:
>
> http://wikis.sun.com/display/SunStudio/Dwarf+Register+Numbering
>
> This is a wiki page, so I'm not sure how much we can trust the contents.
> However, it does contradict the numbers above: Apparently DBX expects
> f0-f31 to be numbered 32-63, not 40-71. If that information is correct,
> perhaps Sun changed it since the first implementation in SDB? Does
> anyone have maybe a more affirmative document?
I'd suggest asking on tools-compilers@opensolaris.org where several Sun
compiler developers hang around. An alternative is the Sun Studio Tools
Forums at
http://forums.sun.com/forum.jspa?forumID=852
although I find that forum stuff inconvenient to use compared to true
mailing lists.
Rainer
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Rainer Orth, Faculty of Technology, Bielefeld University