[PATCH] tools: Add gdbinit helper with LoadSymbolFiles command.

[Zebediah Figura (she/her)]

On 6/21/21 2:33 PM, Rémi Bernon wrote:
> To help gdb reload symbol files from /proc/<pid>/maps, making it
> possible to load debug info for ELF and PE modules for Wine processes.
> 
> When sourced (from ~/.gdbinit for instance), this adds a new
> "load-symbol-files" command (with an "lsf" alias), which automatically
> calls add-symbol-file on every mapped file that can be read as ELF or
> PE, with the correct section offset.
> 
> The command has to be run manually, for instance after executing for
> a while, to load new modules that may have been loaded, as there's no
> way for gdb to be notified of such changes automatically.
> 
> Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
> ---
> 
> This is some script I've been using for a while, and more or less broken
> versions are also used by other people, so I figured maybe it would be
> better to have a proper working version officially distributed with Wine
> source instead, as it's pretty useful for debugging Wine under gdb.
> 
> It's still a bit manual to use, as gdb cannot easily be notified of
> dynamic library loading [1], but I think it's much better than having
> nothing.
> 
> [1] in theory there's ways to do it using systemtap probes, but it's
> going to be hard to make it work, especially for PE modules.

I'm probably missing something, but why can't we just do it in response 
to LOAD_DLL_DEBUG_EVENT?