CMSE calling conventions #3884
Open
CMSE calling conventions #3884
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rustbot
added
the
T-lang
folkertdev
changed the title
folkertdev
force-pushed
the
cmse-calling-conventions
branch
from
f30d3be to
21f5b58
Compare
thejpster
reviewed
Nov 29, 2025
thejpster
reviewed
Nov 29, 2025
thejpster
left a comment
thejpster
left a comment
There was a problem hiding this comment.
I had one quibble with the architecture terminology, but everything else looks good to me.
thejpster
reviewed
Nov 29, 2025
Co-authored-by: Jonathan 'theJPster' Pallant <github@thejpster.org.uk>
Author
|
This has now been reviewed by several people from the rust embedded community and from Arm, so I think this is ready for T-lang to take a look. @rustbot label +I-lang-nominated |
rustbot
added
the
I-lang-nominated
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Support for the
cmse-nonsecure-entryandcmse-nonsecure-callcalling conventions on ArmV8m (thumbv8*) targets, and a lint preventing (partially) uninitialized values from crossing the security boundary.The implementation is tracked in:
extern "cmse-nonsecure-entry"ABI rust#75835extern "cmse-nonsecure-call"ABI rust#81391Important
When responding to RFCs, try to use inline review comments (it is possible to leave an inline review comment for the entire file at the top) instead of direct comments for normal comments and keep normal comments for procedural matters like starting FCPs.
This keeps the discussion more organized.
@rustbot label +T-lang
Rendered