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Rollup merge of #91932 - Kixiron:randomize-seed, r=nagisa

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Add user seed to `-Z randomize-layout`

Allows users of -`Z randomize-layout` to provide `-Z layout-seed=<seed>` in order to further randomizing type layout randomization. Extension of [compiler-team/#457](https://github.com/rust-lang/compiler-team/issues/457), allows users to change struct layouts without changing code and hoping that item path hashes change, aiding in detecting layout errors
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Matthias Krüger 2021-12-19 00:38:41 +01:00 • committed by GitHub
commit 6b62bf3814
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3 changed files with 17 additions and 8 deletions
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compiler/rustc_session/src/options.rs
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@ -1321,6 +1321,8 @@ options! {
"print some statistics about the query system (default: no)"),
randomize_layout: bool = (false, parse_bool, [TRACKED],
"randomize the layout of types (default: no)"),
layout_seed: Option<u64> = (None, parse_opt_number, [TRACKED],
"seed layout randomization"),
relax_elf_relocations: Option<bool> = (None, parse_opt_bool, [TRACKED],
"whether ELF relocations can be relaxed"),
relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED],