Add basic support for libstd without a runtime. #8454
Closed
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
To use it, pass `--cfg no_rt` to rustc when building libstd. Not everything is implemented correctly, and it probably needs to be reworked to use a zero.rs-like description of the runtime that *does* exist. Careful consideration and reworking needs to be done to make the libstd able to be run on bare metal.
|
CC #7282. |
|
I left most of the comments I had on the mailing list. Don't take this too negatively, because this is a goal I want to work towards, but I don't think we should merge such an invasive change without knowing what use case it meets, and having a firm strategy for guaranteeing that it doesn't bitrot. If the goal is to work on a microcontroller, then we should identify the specific things that don't work there and have a series of steps to refactor the build and std toward enabling it. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
To use it, pass
--cfg no_rtto rustc when building libstd. Not everything isimplemented correctly, and it probably needs to be reworked to use a
zero.rs-like description of the runtime that does exist. Careful
consideration and reworking needs to be done to make the libstd able to be run
on bare metal.