Re: Interactively add symbols

Simon Marchi wrote:
> Lars Brinkhoff wrote:
>> As far as I have seen, there's no way for a user to interactively add
>> a symbol to a running GDB session, other than specifying an object
>> file from which to load symbols.  I suggest there should be a simple
>> way to do this from the command line.
>
> As you mentioned, this is a feature that has been often requested.  It
> pops up once in a while on IRC.  The best way to get some progress on
> this would be to make it work for you, and the submit what you have.

Thank you.

I have posted something which works, with some limitations and warts:
https://sourceware.org/ml/gdb/2017-08/msg00022.html

As far as I understand, all symbols must be associated with an objfile.
So I couln't find a way to add a symbol without a file having been
loaded first.  I arbitrarily pick the first objfile in the current
program.  Maybe that's ok.

Next, to record a new symbol, I used the minimal symbol reader.  I found
that it won't do its job unless the "minsyms_read" flag is reset.
Normally it will be set after a file has been loaded, so I kinda hacked
around that.

Am I on the right track, or barking up the wrong tree?