Build C code for xous operating system
#469
Merged
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
The "xous" operating system is enturely Rust-based, meaning it has no libc. Therefore, it relies on `compiler-builtins` for all intrinsics. Unfortunately, there are not yet Rust equivalents for all C functions. For example, triganometric functions are still missing. In the meantime, enable C replacements for these functions so that Rust programs compiled for Xous can call these functions. Signed-off-by: Sean Cross <[email protected]>
This adds support for Xous, enabling users to call math functions on primitives such as `cos()`. Signed-off-by: Sean Cross <[email protected]>
|
Let me know if you need me to publish a new version of the crate. |
|
Yes, please. A new version would be much appreciated! |
|
I published a new release. |
tgross35
added a commit
to tgross35/compiler-builtins
that referenced
this pull request
Feb 24, 2025
Add `fmodf16`
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Outdated suggestions cannot be applied.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.
Xous is a new Tier 3 target:
Xous has no C library at all, and relies on
compiler-builtinsto provide most floating-point math functions. These patches enable C code on this platform.Note that
cc-rsstill needs to be updated to supportriscv32imac-unknown-xous-elf-- for now any packages will need to set theCCenvironment variable to point to a valid C compiler.