920728d14d
This commit implements registering unwind information for JIT functions on Windows so that the operating system can both walk and unwind stacks containing JIT frames. Currently this only works with Cranelift as lightbeam does not emit unwind information yet. This commit also resets the stack guard page on Windows for stack overflow exceptions, allowing reliable stack overflow traps. With these changes, all previously disabled test suite tests (not including the multi-value tests) on Windows are now passing. Fixes #291.
This is the wasmtime-environ crate, which contains the implementations
of the ModuleEnvironment and FuncEnvironment traits from
cranelift-wasm. They effectively
implement an ABI for basic wasm compilation that defines how linear memories
are allocated, how indirect calls work, and other details. They can be used
for JITing, native object files, or other purposes.