Set debug-file-directory from environment variable?

Set debug-file-directory from environment variable?

[Brennan Vincent]

Hello,

Would folks be okay with a patch to take debug file directories from an
environment variable, e.g. GDB_DEBUG_FILE_PATH ?

An example of when this is could be useful is for Guix users: the
variable could be automatically set up when spawning a Guix shell that
contains debug packages.

But I'm guessing it would be useful in other situations too.

Re: Set debug-file-directory from environment variable?

[Jan Vrany via Gdb]

Hi, 
On Thu, 2024-09-05 at 12:17 -0400, Brennan Vincent wrote:
> Hello,
> 
> Would folks be okay with a patch to take debug file directories from
> an
> environment variable, e.g. GDB_DEBUG_FILE_PATH ?
> 
> An example of when this is could be useful is for Guix users: the
> variable could be automatically set up when spawning a Guix shell
> that
> contains debug packages.
> 
> But I'm guessing it would be useful in other situations too.
> 
If I understand you correctly, I think you can use Python to 
do it (if your GDB has Python support).

Something like putting following your .gdbinit (or to system-wide
init script):

---8<----
python
import os

path_from_env = os.environ.get('GDB_DEBUG_FILE_PATH')
if path_from_env is not None:
    old = gdb.parameter('debug-file-directory')
    new = old + ":" + path_from_env
    gdb.set_parameter('debug-file-directory', new)

end
---8<----

Jan