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c37398010a
This is a subset of the Rust `zerocopy` crate, version v0.8.50 (released
2026-05-31), licensed under "BSD-2-Clause OR Apache-2.0 OR MIT", from:
https://github.com/google/zerocopy/tree/v0.8.50
The files are copied as-is, with no modifications whatsoever (not even
adding the SPDX identifiers).
The `benches` folder is added (i.e. not just `src` like in other cases)
since the files there are included in the rendered documentation,
as well as the `rustdoc` CSS style file that is needed to make those
visually more understandable.
For copyright details, please see:
https://github.com/google/zerocopy/blob/v0.8.50/README.md?plain=1
https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-BSD
https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-APACHE
https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-MIT
The next two patches modify these files as needed for use within the
kernel. This patch split allows reviewers to double-check the import
and to clearly see the differences introduced.
The following script may be used to verify the contents:
for path in $(cd rust/zerocopy/ && find . -type f); do
curl --silent --show-error --location \
https://github.com/google/zerocopy/raw/v0.8.50/$path \
| diff --unified rust/zerocopy/$path - && echo $path: OK
done
Cc: Joshua Liebow-Feeser <joshlf@google.com>
Cc: Jack Wrenn <jswrenn@google.com>
Link: https://patch.msgid.link/20260608141439.182634-9-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
61 lines
1013 B
Plaintext
61 lines
1013 B
Plaintext
bench_extend_vec_zeroed:
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push r15
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push r14
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push r13
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push r12
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push rbx
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sub rsp, 32
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mov rbx, rdi
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mov rax, qword ptr [rdi]
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mov r12, qword ptr [rdi + 16]
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mov rcx, rax
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sub rcx, r12
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cmp rsi, rcx
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jbe .LBB6_3
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mov r15, r12
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add r15, rsi
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jae .LBB6_6
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.LBB6_2:
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xor eax, eax
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jmp .LBB6_5
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.LBB6_3:
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mov rax, qword ptr [rbx + 8]
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lea r15, [r12 + rsi]
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.LBB6_4:
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lea rcx, [r12 + 2*r12]
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lea rdi, [rax + 2*rcx]
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add rsi, rsi
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lea rdx, [rsi + 2*rsi]
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xor esi, esi
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call qword ptr [rip + memset@GOTPCREL]
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mov qword ptr [rbx + 16], r15
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mov al, 1
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.LBB6_5:
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add rsp, 32
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pop rbx
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pop r12
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pop r13
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pop r14
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pop r15
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ret
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.LBB6_6:
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mov r13, rsi
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lea rcx, [rax + rax]
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cmp r15, rcx
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cmova rcx, r15
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cmp rcx, 5
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mov r14d, 4
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cmovae r14, rcx
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mov rdx, qword ptr [rbx + 8]
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lea rdi, [rsp + 8]
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mov rsi, rax
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mov rcx, r14
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call <alloc::raw_vec::RawVecInner>::finish_grow
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cmp dword ptr [rsp + 8], 1
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je .LBB6_2
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mov rax, qword ptr [rsp + 16]
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mov qword ptr [rbx + 8], rax
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mov qword ptr [rbx], r14
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mov rsi, r13
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jmp .LBB6_4
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