Getting core estimate for "gcore" command and conversely gcore/generate-core-file in GDB

[SCOTT FIELDS]

Where would I need to make a feature request for this?

-----Original Message-----
From: Tom Tromey <tom@tromey.com> 
Sent: Friday, September 8, 2023 11:56 AM
To: SCOTT FIELDS via Gdb <gdb@sourceware.org>
Cc: gdb@gnu.org; SCOTT FIELDS <Scott.Fields@kyndryl.com>
Subject: [EXTERNAL] Re: Getting core estimate for "gcore" command and conversely gcore/generate-core-file in GDB

>>>>> SCOTT FIELDS via Gdb <gdb@sourceware.org> writes:

> Are there other commands that will estimate the current space required 
> for a successful run of "gcore"?  Neither "gcore" command or 
> gcore/generate-core-file command in GDB provide any option to get such 
> an estimate.

> Has there been a request to get this kind of information from "gcore"
> as a future enhancement, since it can be difficult to know just how 
> much space a large running process actually needs.

I've never heard such a request.

Looking at gcore.c, it seems reasonably possible to implement this.
Look at gcore_create_callback to see how it decides how to size the various sections.  Without trying, it is hard to say if there is some hidden gotcha.

Tom