Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update locally-built rustc instructions #1610

Merged
merged 1 commit into from
Oct 30, 2020
Merged

Update locally-built rustc instructions #1610

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 7 additions & 4 deletions CONTRIBUTING.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -141,19 +141,22 @@ tracing) enabled.

The setup for a local rustc works as follows:
```sh
# 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`.
# This step can take 30 minutes and more.
./x.py build src/rustc

# Build a stage 2 rustc.
# This step can take 30 minutes or more.
./x.py build --stage 2 compiler/rustc
# If you change something, you can get a faster rebuild by doing
./x.py --keep-stage 0 build src/rustc
./x.py build --keep-stage 0 --stage 2 compiler/rustc
# You may have to change the architecture in the next command
rustup toolchain link custom build/x86_64-unknown-linux-gnu/stage2
# Now cd to your Miri directory, then configure rustup
rustup override set custom
```

With this, you should now have a working development setup! See
With this, you should now have a working development setup! See
[above](#building-and-testing-miri) for how to proceed working on Miri.