allow specifying path of wasm executable

ableos/src/rhai_shell/mod.rs

@@ -210,7 +210,8 @@ fn engine_construction() -> Engine {
     engine.register_fn("peek", peek_memory);
     engine.register_fn("poke", poke_memory);
     engine.register_fn("sloop", sloop);
-    engine.register_fn("wasm", interp);
+    engine.register_fn("wasm", |s: &str| interp(s.as_bytes()));
+    engine.register_fn("wasm", || interp(b"/home/able/bins/aos_test.wasm"));
     engine.register_fn("log_dump", log_dump);
 
     engine

ableos/src/wasm_jumploader/host_functions.rs

@@ -167,8 +167,8 @@ impl Externals for HostExternals {
             }
 
             GET_INPUT_INDEX => {
-                let input = None;
+                let mut input = None;
-                x86_64::instructions::interrupts::without_interrupts(|| KEYBUFF.lock().pop());
+                input = x86_64::instructions::interrupts::without_interrupts(|| KEYBUFF.lock().pop());
                 if let Some(chr) = input {
                     trace!("SYSCALL: input: {}", chr);
                 }

ableos/src/wasm_jumploader/mod.rs

@@ -4,13 +4,13 @@ use crate::{filesystem::FILE_SYSTEM, wasm_jumploader::host_functions::HostExtern
 use genfs::{Fs, OpenOptions};
 use wasmi::{ImportsBuilder, ModuleInstance};
 
-pub fn interp() {
+pub fn interp(file: &[u8]) {
     trace!("Interpreting...");
     let fs = &*FILE_SYSTEM.lock();
     trace!("Got filesystem");
     let file = fs
         .open(
-            b"/home/able/bins/aos_test.wasm",
+            file,
             OpenOptions::new().read(true),
         )
         .unwrap();