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.

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

librustc_codegen_llvm: Use repr(transparent) for bitflags over repr(C… #61881

Merged
merged 1 commit into from
Jun 16, 2019

Conversation

glaubitz
Copy link
Contributor

@glaubitz glaubitz commented Jun 16, 2019

…) (#61306)

In order to make sure that Rust's bitflags types are passed the same way in the Rust ABI as they are in the C ABI, we need to use the attribute repr(transparent) over the repr(C) attribute for the single-field bitflags structs in in order to prevent ABI mismatches. Thanks to Michael Karcher for finding this bug.

rust-lang#61306)

In order to make sure that Rust's bitflags types are passed the same
way in the Rust ABI as they are in the C ABI, we need to use the attribute
repr(transparent) over the repr(C) attribute for the single-field bitflags
structs in in order to prevent ABI mismatches. Thanks to Michael Karcher
for finding this bug.
@rust-highfive
Copy link
Collaborator

r? @varkor

(rust_highfive has picked a reviewer for you, use r? to override)

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jun 16, 2019
@glaubitz
Copy link
Contributor Author

r? @petrochenkov

@petrochenkov
Copy link
Contributor

Thanks!
@bors r+ rollup

@bors
Copy link
Contributor

bors commented Jun 16, 2019

📌 Commit 3fa7411 has been approved by petrochenkov

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 16, 2019
@bors
Copy link
Contributor

bors commented Jun 16, 2019

⌛ Testing commit 3fa7411 with merge 799cf3f...

bors added a commit that referenced this pull request Jun 16, 2019
librustc_codegen_llvm: Use repr(transparent) for bitflags over repr(C…

…) (#61306)

In order to make sure that Rust's bitflags types are passed the same way in the Rust ABI as they are in the C ABI, we need to use the attribute repr(transparent) over the repr(C) attribute for the single-field bitflags structs in in order to prevent ABI mismatches. Thanks to Michael Karcher for finding this bug.
@bors
Copy link
Contributor

bors commented Jun 16, 2019

☀️ Test successful - checks-travis, status-appveyor
Approved by: petrochenkov
Pushing 799cf3f to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jun 16, 2019
@bors bors merged commit 3fa7411 into rust-lang:master Jun 16, 2019
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
merged-by-bors This PR was explicitly merged by bors. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

5 participants