Fix p{read,write}v{,v2}'s encoding of the offset argument on Linux. (…#898
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sunfishcode merged 1 commit into0.36from Oct 25, 2023
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Fix p{read,write}v{,v2}'s encoding of the offset argument on Linux. (…#898sunfishcode merged 1 commit into0.36from
sunfishcode merged 1 commit into0.36from
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…896) Unlike with `p{read,write}`, Linux's `p{read,write}v` syscall's offset argument is not passed in an endian-specific order. And, the expectation is for syscall wrappers to always pass both the high and low halves of the offset as separate arguments, even though on 64-bit architectures the low half is passed throgh as a 64-bit value containing the full offset and the kernel doesn't mask it. And `p{read,write}v2` follow the behavior of `p{read,write}`.
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…#896)
Unlike with
p{read,write}, Linux'sp{read,write}vsyscall's offset argument is not passed in an endian-specific order. And, the expectation is for syscall wrappers to always pass both the high and low halves of the offset as separate arguments, even though on 64-bit architectures the low half is passed throgh as a 64-bit value containing the full offset and the kernel doesn't mask it.And
p{read,write}v2follow the behavior ofp{read,write}.