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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /vendor/sha1/src/compress.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/sha1/src/compress.rs')
-rw-r--r-- | vendor/sha1/src/compress.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/vendor/sha1/src/compress.rs b/vendor/sha1/src/compress.rs new file mode 100644 index 000000000..da4a10a98 --- /dev/null +++ b/vendor/sha1/src/compress.rs @@ -0,0 +1,37 @@ +use crate::{Block, BlockSizeUser, Sha1Core}; +use digest::typenum::Unsigned; + +cfg_if::cfg_if! { + if #[cfg(feature = "force-soft")] { + mod soft; + use soft::compress as compress_inner; + } else if #[cfg(all(feature = "asm", target_arch = "aarch64"))] { + mod soft; + mod aarch64; + use aarch64::compress as compress_inner; + } else if #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] { + #[cfg(not(feature = "asm"))] + mod soft; + #[cfg(feature = "asm")] + mod soft { + pub use sha1_asm::compress; + } + mod x86; + use x86::compress as compress_inner; + } else { + mod soft; + use soft::compress as compress_inner; + } +} + +const BLOCK_SIZE: usize = <Sha1Core as BlockSizeUser>::BlockSize::USIZE; + +/// SHA-1 compression function +#[cfg_attr(docsrs, doc(cfg(feature = "compress")))] +pub fn compress(state: &mut [u32; 5], blocks: &[Block<Sha1Core>]) { + // SAFETY: GenericArray<u8, U64> and [u8; 64] have + // exactly the same memory layout + let blocks: &[[u8; BLOCK_SIZE]] = + unsafe { &*(blocks as *const _ as *const [[u8; BLOCK_SIZE]]) }; + compress_inner(state, blocks); +} |