[stable] 1.51.0 release #83377
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[stable] 1.51.0 release #83377
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This commit fixes an issue pointed out in rust-lang#82758 where LTO changed the behavior of a program. It turns out that LTO was not at fault here, it simply uncovered an existing bug. The bindings to `__wasilibc_find_relpath` assumed that the relative portion of the path returned was always contained within thee input `buf` we passed in. This isn't actually the case, however, and sometimes the relative portion of the path may reference a sub-portion of the input string itself. The fix here is to use the relative path pointer coming out of `__wasilibc_find_relpath` as the source of truth. The `buf` used for local storage is discarded in this function and the relative path is copied out unconditionally. We might be able to get away with some `Cow`-like business or such to avoid the extra allocation, but for now this is probably the easiest patch to fix the original issue.
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@bors r+ rollup=never p=100 |
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📌 Commit f9dd96d has been approved by |
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⌛ Testing commit f9dd96d with merge 03fe4856d159571093c62482ed114d77aa1c275c... |
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💔 Test failed - checks-actions |
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@bors retry - spurious empty builder |
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☀️ Test successful - checks-actions |
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Also includes backports of the release notes, as well as:
r? @Mark-Simulacrum