d59caf39b6
* Wasmtime+Cranelift: strip out some dead x86-32 code. I was recently pointed to fastly/Viceroy#200 where it seems some folks are trying to compile Wasmtime (via Viceroy) for Windows x86-32 and the failures may not be loud enough. I've tried to reproduce this cross-compiling to i686-pc-windows-gnu from Linux and hit build failures (as expected) in several places. Nevertheless, while trying to discern what others may be attempting, I noticed some dead x86-32-specific code in our repo, and figured it would be a good idea to clean this up. Otherwise, it (i) sends some mixed messages -- "hey look, this codebase does support x86-32" -- and (ii) keeps untested code around, which is generally not great. This PR removes x86-32-specific cases in traphandlers and unwind code, and Cranelift's native feature detection. It adds helpful compile-error messages in a few cases. If we ever support x86-32 (contributors welcome! The big missing piece is Cranelift support; see #1980), these compile errors and git history should be enough to recover any knowledge we are now encoding in the source. I left the x86-32 support in `wasmtime-fiber` alone because that seems like a bit of a special case -- foundation library, separate from the rest of Wasmtime, with specific care to provide a (presumably working) full 32-bit version. * Remove some extraneous compile_error!s, already covered by others.
12 lines
326 B
Rust
12 lines
326 B
Rust
cfg_if::cfg_if! {
|
|
if #[cfg(all(windows, any(target_arch = "x86_64", target_arch = "aarch64")))] {
|
|
mod winx64;
|
|
pub use self::winx64::*;
|
|
} else if #[cfg(unix)] {
|
|
mod systemv;
|
|
pub use self::systemv::*;
|
|
} else {
|
|
compile_error!("unsupported target platform for unwind");
|
|
}
|
|
}
|