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Remove use of offset_of! from wasmtime-environ.

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wasmtime-environ is meant to support cross compilation, so it shouldn't
have dependencies on target layout of structs. This moves the layout
back into wasmtime-execute, and adds a system of asserts for checking
that wasmtime-environ's offsets stay in sync.
This commit is contained in:
Dan Gohman
2018-11-30 16:50:05 -08:00
parent 099f85f821
commit fe1643733b
10 changed files with 355 additions and 66 deletions
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lib/environ/Cargo.toml
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@@ -13,7 +13,7 @@ readme = "README.md"
cranelift-codegen = { git = "https://github.com/sunfishcode/cranelift.git", branch = "guard-offset" }
cranelift-entity = { git = "https://github.com/sunfishcode/cranelift.git", branch = "guard-offset" }
cranelift-wasm = { git = "https://github.com/sunfishcode/cranelift.git", branch = "guard-offset" }
memoffset = "0.2.1"
cast = { version = "0.2.2", default-features = false }
[features]
default = ["std"]