Tracking issue for -Z randomize-layout
#106764
Labels
-Zrandomize-layout
Unstable option: Randomize the layout of types.
A-CLI
Area: Command-line interface (CLI) to the compiler
A-layout
Area: Memory layout of types
C-tracking-issue
Category: An issue tracking the progress of sth. like the implementation of an RFC
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
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dtolnay
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This was referenced Jan 12, 2023
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bors
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Nov 24, 2024
`-Zrandomize-layout` harder. `Foo<T> != Foo<U>` Tracking issue: rust-lang#106764 Previously randomize-layout only used a deterministic shuffle based on the seed stored in an Adt's ReprOptions, meaning that `Foo<T>` and `Foo<U>` were shuffled by the same seed. This change adds a similar seed to each calculated LayoutData so that a struct can be randomized both based on the layout of its fields and its per-type seed. Primitives start with simple seed derived from some of their properties. Though some types can no longer be distinguished at that point, e.g. usize and u64 will still be treated the same.
matthiaskrgr
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Dec 3, 2024
… r=jieyouxu document -Zrandomize-layout in the unstable book tracking issue: rust-lang#106764 fixes rust-lang#130462
jhpratt
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Dec 3, 2024
… r=jieyouxu document -Zrandomize-layout in the unstable book tracking issue: rust-lang#106764 fixes rust-lang#130462
matthiaskrgr
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Dec 3, 2024
… r=jieyouxu document -Zrandomize-layout in the unstable book tracking issue: rust-lang#106764 fixes rust-lang#130462
matthiaskrgr
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Dec 3, 2024
… r=jieyouxu document -Zrandomize-layout in the unstable book tracking issue: rust-lang#106764 fixes rust-lang#130462
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This is a tracking issue for the unstable rustc flag
-Zrandomize-layout. (rust-lang/compiler-team#457)About tracking issues
Tracking issues are used to record the overall progress of implementation. They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions. A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature. Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.
Steps
Unresolved Questions
Implementation history
-Zrandomize-layoutflag to better detect code that rely on unspecified behavior related to memory layout #77316-Z randomize-layoutflag compiler-team#457-Z randomize-layout#91932-Z randomize-layout#97861-Zrandomize-layoutharder.Foo<T> != Foo<U>#133088The text was updated successfully, but these errors were encountered: