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Re: For example only, updated Windows DLL support and gdbserver DLL support
- From: "Ulrich Weigand" <uweigand at de dot ibm dot com>
- To: drow at false dot org (Daniel Jacobowitz)
- Cc: gdb-patches at sourceware dot org, pedro_alves at portugalmail dot pt (Pedro Alves)
- Date: Tue, 19 Jun 2007 22:00:35 +0200 (CEST)
- Subject: Re: For example only, updated Windows DLL support and gdbserver DLL support
Dan Jacobowitz wrote:
> > It looks like the only way to get this to work within the regular solib
> > framework would be to actually teach solib.c itself about this form of
> > archive members.
>
> Yes, I think you're right. How about we add an optional member=""
> attribute to <library>, and make the common solib.c code open it?
> We'd also have to allow .o files.
That sounds reasonable. The member name would presumably also
have to be added to so_list ...
> I'm not sure how much trouble you'll have reporting the correct
> relocations for an object file. Do you get something based on
> sections, or do AIX object files have a fixed number of segments?
XCOFF seems to be a bit limited in that respect, I understand there
is just "Text" and "Data". The AIX ldinfo structure provides:
ldinfo_textorg
Effective address of the loaded program image, including the XCOFF headers.
ldinfo_textsize
Length of loaded program image.
ldinfo_dataorg
Effective address of the start of data.
ldinfo_datasize
Size of data, including the .bss section.
For more details, see:
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.files/doc/aixfiles/ldr.h.htm
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
Ulrich.Weigand@de.ibm.com