Improve contributing instructions

- Fix incorrect comment
- Recommend `x.py setup` over manually editing config.toml
- Link to rustc-dev-guide
This commit is contained in:
Joshua Nelson 2020-10-31 15:06:06 -04:00
parent 85a9a43bef
commit 43ce2c2844

View File

@ -144,8 +144,9 @@ The setup for a local rustc works as follows:
# Clone the rust-lang/rust repo.
git clone https://github.com/rust-lang/rust rustc
cd rustc
cp config.toml.example config.toml
# Now edit `config.toml` and set `debug-assertions = true`.
# Create a config.toml with defaults for working on miri.
./x.py setup compiler
# Now edit `config.toml` and under `[rust]` set `debug-assertions = true`.
# Build a stage 1 rustc, and build the rustc libraries with that rustc.
# This step can take 30 minutes or more.
@ -158,5 +159,8 @@ rustup toolchain link stage1 build/x86_64-unknown-linux-gnu/stage1
rustup override set stage1
```
For more information about building and configuring a local compiler,
see <https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html>.
With this, you should now have a working development setup! See
[above](#building-and-testing-miri) for how to proceed working on Miri.