Add pulley support for LTS wasmtime builds

Pass features (including wasmtime_lts) through to pulley build recipes
in Justfile, and add pulley target support to the LTS AOT compilation
path so --lts --pulley works correctly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: jsturtevant

Justfile

@@ -47,7 +47,7 @@ build-rust-wasm-examples target=default-target features="": (mkdir-redist target
 build-pulley-rust-wasm-examples target=default-target features="": (mkdir-redist target)
     rustup target add wasm32-unknown-unknown
     cd ./src/tests/rust_guests/rust_wasm_samples && cargo build --target wasm32-unknown-unknown --profile={{ if target == "debug" {"dev"} else { target } }}
-    cargo run -p hyperlight-wasm-aot compile --pulley {{ if features =~ "gdb" {"--debug"} else {""} }} ./src/tests/rust_guests/rust_wasm_samples/target/wasm32-unknown-unknown/{{ target }}/rust_wasm_samples.wasm ./x64/{{ target }}/rust_wasm_samples.aot
+    cargo run -p hyperlight-wasm-aot compile --pulley {{ if features =~ "gdb" {"--debug"} else {""} }} {{ if features =~ "wasmtime_lts" {"--lts"} else {""} }} ./src/tests/rust_guests/rust_wasm_samples/target/wasm32-unknown-unknown/{{ target }}/rust_wasm_samples.wasm ./x64/{{ target }}/rust_wasm_samples.aot
 
 build-rust-component-examples target=default-target features="": (compile-wit)
     # use cargo component so we don't get all the wasi imports https://github.com/bytecodealliance/cargo-component?tab=readme-ov-file#relationship-with-wasm32-wasip2
@@ -63,7 +63,7 @@ build-pulley-rust-component-examples target=default-target features="": (compile
     # we also explicitly target wasm32-unknown-unknown since cargo component might try to pull in wasi imports https://github.com/bytecodealliance/cargo-component/issues/290
     rustup target add wasm32-unknown-unknown
     cd ./src/tests/rust_guests/component_sample && cargo component build --target wasm32-unknown-unknown --profile={{ if target == "debug" {"dev"} else { target } }}
-    cargo run -p hyperlight-wasm-aot compile --pulley {{ if features =~ "gdb" {"--debug"} else {""} }} --component ./src/tests/rust_guests/component_sample/target/wasm32-unknown-unknown/{{ target }}/component_sample.wasm ./x64/{{ target }}/component_sample.aot
+    cargo run -p hyperlight-wasm-aot compile --pulley {{ if features =~ "gdb" {"--debug"} else {""} }} {{ if features =~ "wasmtime_lts" {"--lts"} else {""} }} --component ./src/tests/rust_guests/component_sample/target/wasm32-unknown-unknown/{{ target }}/component_sample.wasm ./x64/{{ target }}/component_sample.aot
 
 check target=default-target:
     cargo check --profile={{ if target == "debug" {"dev"} else { target } }}
@@ -126,7 +126,7 @@ examples-components target=default-target features="": (build-rust-component-exa
     {{ wit-world }} {{ wit-world-name-greeter }} cargo run {{ if features =="" {''} else {"--no-default-features -F kvm -F " + features } }} --profile={{ if target == "debug" {"dev"} else { target } }} --example component_greeter_example
 
 # Test a component and a module compiled with pulley
-examples-pulley target=default-target features="": (build-pulley-rust-component-examples target) (build-pulley-rust-wasm-examples target)
+examples-pulley target=default-target features="": (build-pulley-rust-component-examples target features) (build-pulley-rust-wasm-examples target features)
     {{ wit-world }} cargo run {{ if features =="" {'-F pulley'} else {"--no-default-features -F kvm,pulley -F " + features } }} --profile={{ if target == "debug" {"dev"} else { target } }} --example component_example
     cargo run {{ if features =="" {'-F pulley'} else {"--no-default-features -F pulley -F " + features } }} --profile={{ if target == "debug" {"dev"} else { target } }} --example rust_wasm_examples
 

src/hyperlight_wasm_aot/src/main.rs

@@ -94,10 +94,14 @@ enum Commands {
     },
 }
 
-/// Precompile bytes using the LTS wasmtime version (x86_64-unknown-none target only)
-fn precompile_bytes_lts(bytes: &[u8], debug: bool, is_component: bool) -> Vec<u8> {
+/// Precompile bytes using the LTS wasmtime version
+fn precompile_bytes_lts(bytes: &[u8], debug: bool, pulley: bool, is_component: bool) -> Vec<u8> {
     let mut config = wasmtime_lts::Config::new();
-    config.target("x86_64-unknown-none").unwrap();
+    if pulley {
+        config.target("pulley64").unwrap();
+    } else {
+        config.target("x86_64-unknown-none").unwrap();
+    }
     if debug {
         config.debug_info(true);
         config.cranelift_opt_level(wasmtime_lts::OptLevel::None);
@@ -165,16 +169,24 @@ fn main() {
             };
 
             if lts {
+                let target_name = if pulley {
+                    "pulley64"
+                } else {
+                    "x86_64-unknown-none"
+                };
                 if debug {
                     println!(
-                        "Aot Compiling {} to {} with debug info and optimizations off (LTS wasmtime)",
-                        input, outfile
+                        "Aot Compiling {} to [{}]: {} with debug info and optimizations off (LTS wasmtime)",
+                        input, target_name, outfile
                     );
                 } else {
-                    println!("Aot Compiling {} to {} (LTS wasmtime)", input, outfile);
+                    println!(
+                        "Aot Compiling {} to [{}]: {} (LTS wasmtime)",
+                        input, target_name, outfile
+                    );
                 }
                 let bytes = std::fs::read(&input).unwrap();
-                let serialized = precompile_bytes_lts(&bytes, debug, component);
+                let serialized = precompile_bytes_lts(&bytes, debug, pulley, component);
                 std::fs::write(outfile, serialized).unwrap();
             } else {
                 let target = if pulley {