Debugging xtask

[FawazTirmizi]

I've been making some changes to different parts of the repository, including xtask, and am running into some bugs with the linker script generation. Is there a way for xtask to be debugged in GDB? When I try by running rust-gdb --args target/debug/xtask dist app/test-app/app.toml, I get the error Error: environment variable not found.

[mx-shift]

xtask expects to be run via cargo run which sets a few environment variables. One possible way to run xtask under gdb would be to follow the instructions at https://stackoverflow.com/questions/52685869/is-there-a-way-to-directly-run-the-program-built-by-cargo-in-gdb-or-lldb.

[FawazTirmizi]

That works, thanks! Here is what I ended up doing:

.config/cargo.toml:

[target.x86_64-unknown-linux-gnu]
runner = ["/home/fawaz/cargo_runner.sh"]

cargo_runner.sh:

#!/bin/bash

if [[ -z $CARGO_DEBUG ]]; then
    exec $*
else
    exec rust-gdb --args $*
fi