Re: Running GDB with args and variables

Hi all
On Mon Aug 30, 2021 at 4:56 PM BST, Christian Biesinger via Gdb wrote:
> On Fri, Aug 27, 2021 at 2:29 PM Mahmood Naderan via Gdb
> <[email protected]> wrote:
> > I use the following command to run a program
> > $ LD_PRELOAD=/home/mahmood/foo.so /home/mahmood/program/run /home/mahmood/p2/bin/p2 -config t.txt
>
> I would think the error comes from the fact that gdb is looking for a
> file called "LD_PRELOAD=..." and there is no such file.
>
> Maybe try: gdb --args env LD_PRELOAD=... foo

To avoid the confusion with the `env` fork/exec without worrying about
`set follow-fork-mode child` the following might be better:

gdb \
    --init-eval-command="set environment LD_PRELOAD=/home/mahmood/foo.so" \
    --args /home/mahmood/program/run /home/mahmood/p2/bin/p2 -config t.txt


This commands gdb to set the environment in the child before the child is loaded

All the Best

Luke

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