有没有办法在gdb或lldb中直接运行由Cargo构建的程序？

Question

Is there a way to run the program built by Cargo immediately in gdb ? cargo has lots of functions and can run the program, so it seems plausible.

The expected command would be something like cargo debug .

Answer 1

No, there's nothing like this currently built into Cargo.

There's a few issues ( 1 , 2 ) to better support similar issues.

The best thing you could do at the moment would be to write a Cargo subcommand that does exactly what you need.

A workaround

Without creating a subcommand, you can glue together a few features to get something close.

Start by configuring a custom runner for your architecture.

.cargo/config

[target.x86_64-apple-darwin]
runner = ["/tmp/gg/debugger.sh"]

Then write a little script to be the test runner. If an environment variable is set, it will start the debugger, otherwise it will just run the program:

#!/bin/bash

if [[ -z $DEBUG ]]; then
    exec $*
else
    exec lldb $*
fi

Then you just need to set the variable:

$ cargo test
    Finished dev [unoptimized + debuginfo] target(s) in 0.04s
     Running target/debug/deps/gg-e5d6c92730ca3c30

running 0 tests

$ DEBUG=1 cargo test
    Finished dev [unoptimized + debuginfo] target(s) in 0.01s
     Running target/debug/deps/gg-e5d6c92730ca3c30
(lldb) target create "/private/tmp/gg/target/debug/deps/gg-e5d6c92730ca3c30"
Current executable set to '/private/tmp/gg/target/debug/deps/gg-e5d6c92730ca3c30' (x86_64).
(lldb)

See also:

• How can I run cargo tests on another machine without the Rust compiler?
• How to debug Rust unit tests on Windows?