--- /dev/null
+//! A "bare wasm" target representing a WebAssembly output that makes zero
+//! assumptions about its environment.
+//!
+//! The `wasm64-unknown-unknown` target is intended to encapsulate use cases
+//! that do not rely on any imported functionality. The binaries generated are
+//! entirely self-contained by default when using the standard library. Although
+//! the standard library is available, most of it returns an error immediately
+//! (e.g. trying to create a TCP stream or something like that).
+
+use super::wasm_base;
+use super::{LinkerFlavor, LldFlavor, Target};
+
+pub fn target() -> Target {
+ let mut options = wasm_base::options();
+ options.os = "unknown".to_string();
+ options.linker_flavor = LinkerFlavor::Lld(LldFlavor::Wasm);
+ let clang_args = options.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap();
+
+ // Make sure clang uses LLD as its linker and is configured appropriately
+ // otherwise
+ clang_args.push("--target=wasm64-unknown-unknown".to_string());
+
+ // For now this target just never has an entry symbol no matter the output
+ // type, so unconditionally pass this.
+ clang_args.push("-Wl,--no-entry".to_string());
+ options
+ .pre_link_args
+ .get_mut(&LinkerFlavor::Lld(LldFlavor::Wasm))
+ .unwrap()
+ .push("--no-entry".to_string());
+
+ Target {
+ llvm_target: "wasm64-unknown-unknown".to_string(),
+ pointer_width: 64,
+ data_layout: "e-m:e-p:64:64-i64:64-n32:64-S128".to_string(),
+ arch: "wasm64".to_string(),
+ options,
+ }
+}