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Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the
prelude instead of importing or qualifying them.
These functions were added to all preludes in Rust 1.80.
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The AdjustProcessLimit syscall was using the correct call number.
Signed-off-by: Sean Cross <sean@xobs.io>
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Many tiny changes to stdlib doc comments to make them consistent (for example
"Returns foo", rather than "Return foo", per RFC1574), adding missing periods, paragraph
breaks, backticks for monospace style, and other minor nits.
https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#appendix-a-full-conventions-text
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When updating memory flags via `update_memory_flags()`, ensure we
multiply the slice length by the element size to get the full memory
size.
Signed-off-by: Sean Cross <sean@xobs.io>
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The amount of memory allocated was multiplied by sizeof::<T>(), so the
amount of memory to be freed should also be multiplied by sizeof::<T>().
Signed-off-by: Sean Cross <sean@xobs.io>
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The `ret1` and `ret2` return values from lend operations are returned in
$a1 and $a2. This function incorrectly pulled them from $a6 and $a7,
causing them to always be `0`.
Signed-off-by: Sean Cross <sean@xobs.io>
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Xous has no C FFI. Instead, all FFI is done via syscalls that are
specified in Rust. Add these FFI calls to libstd, as well as some of the
currently-supported syscalls.
This enables Rust programs to interact with the Xous operating system
while avoiding adding an extra dependency to libstd.
Signed-off-by: Sean Cross <sean@xobs.io>
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