9ca3bf532e
* Increase the size of the sigaltstack. Rust's stack overflow handler installs a sigaltstack stack with size SIGSTKSZ, which is too small for some of the things we do in signal handlers, and as of this writing lacks a guard page. Install bigger sigaltstack stacks so that we have enough space, and have a guard page.
This is the wasmtime-runtime crate, which contains wasm runtime library
support, supporting the wasm ABI used by wasmtime-environ,
wasmtime-jit, and wasmtime-obj.
This crate does not make a host vs. target distinction; it is meant to be compiled for the target.
Most users will want to use the main wasmtime crate instead of using this
crate directly.