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Re: [PATCH, ARM] Fix Dwarf register numbering for VFPv3/Neon registers
- From: Richard Earnshaw <rearnsha at arm dot com>
- To: Julian Brown <julian at codesourcery dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 30 Oct 2009 10:12:46 +0000
- Subject: Re: [PATCH, ARM] Fix Dwarf register numbering for VFPv3/Neon registers
- References: <20091029163511.4a37c00b@rex.config>
On Thu, 2009-10-29 at 16:35 +0000, Julian Brown wrote:
> + The recommended encodings for S0-S31 is a DW_OP_bit_piece of the
> + corresponding D register. However gdb6.6 does not support this,
> so
> + we use the legacy encodings. We also use these encodings for
> D0-D15
> + for compatibility with older debuggers. */
This comment implies that the problem was probably fixed in gdb-6.7
which is now over two years (and three releases ago). Is the comment
wrong, or do we now support this. Given the status of the VFP support
in GDB, I would really expect that someone wanting to debug VFP would
need a more recent version of the debugger than 6.6 anyway, so I
wouldn't see that as a reason for keeping the old numbering.
R.