Re: [PATCH] Support gzip compressed exec and core files in gdb

Michael Eager
2015-03-11T14:57:17Z

On 03/11/15 01:14, Alan Modra wrote:
> On Tue, Mar 10, 2015 at 04:01:42PM -0700, Michael Eager wrote:
>> This operation cannot be done completely by BFD because BFD allows an opened
>> file to be passed to it for processing. GDB uses this functionality.
>
> I'd prefer you do this entirely outside of BFD, without adding another
> field to struct bfd. I think that can be done by simply clearing
> abfd->cacheable on files you uncompress. This prevents BFD from
> closing the file, so you won't need to open it again.

GDB closes the exec file, then uses BFD to seek (I think when reading
syms). BFD then re-opens the file, so it needs the name of the
uncompressed file.

--
Michael Eager eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306 650-325-8077