wasm programs are now working

ableos/src/allocator/mod.rs

@@ -2,7 +2,9 @@ mod aalloc;
 
 pub const HEAP_START: usize = 0x_4444_4444_0000;
 /// 131072 bytes
-pub const HEAP_MULTIPLIER: usize = 1024;
+// pub const HEAP_MULTIPLIER: usize = 1024;
+pub const HEAP_MULTIPLIER: usize = 100000;
+
 pub const HEAP_BASE: usize = 100;
 
 pub const HEAP_SIZE: usize = HEAP_BASE * HEAP_MULTIPLIER;

ableos/src/dirty_hacks/mod.rs

@@ -0,0 +1,4 @@
+#[no_mangle]
+extern "C" fn __truncdfsf2(_x: f64) -> f32 {
+    0.0
+}

ableos/src/kmain.rs

@@ -1,7 +1,5 @@
 #![allow(clippy::empty_loop)]
 
-pub extern crate externc_libm as libm;
-
 use {
     crate::{
         arch::{drivers::graphics::GraphicsBuffer, init, sloop},
@@ -43,7 +41,7 @@ pub fn kernel_main() -> ! {
     GraphicsBuffer::draw();
     GraphicsBuffer::hide_cursor();
     GraphicsBuffer::show_cursor();
-    // crate::wasm::evaluate();
+    crate::wasm::evaluate();
 
     println!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);
     info!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);

ableos/src/lib.rs

@@ -31,6 +31,7 @@ pub mod print;
 pub mod log;
 
 pub mod allocator;
+pub mod dirty_hacks;
 pub mod driver_traits;
 pub mod experiments;
 pub mod keyboard;
@@ -38,6 +39,9 @@ pub mod kmain;
 pub mod panic;
 pub mod relib;
 pub mod scheduler;
+pub mod test;
 pub mod wasm;
 
 extern crate alloc;
+
+pub extern crate externc_libm as libm;

ableos/src/main.rs

@@ -1,3 +1,4 @@
 #![no_std]
 #![no_main]
+
 pub use ableos::*;

ableos/src/relib/image/mod.rs

@@ -1 +1,2 @@
+#[allow(unused_imports)]
 use qoi_rs;

ableos/src/wasm/mod.rs

@@ -8,8 +8,6 @@ use {
 };
 
 mod wasm_sys;
-pub extern crate externc_libm as libm;
-
 struct HostFunctions;
 impl HostFunctions {
     fn check_signature(&self, index: usize, signature: &Signature) -> bool {
@@ -30,7 +28,7 @@ impl Externals for HostFunctions {
         match index.into() {
             // Take in one arg discard the rest
             SysCall::KILL => {
-                println!("Program killed");
+                info!("Program run at runtime called a system call");
                 Ok(None)
             }
             // Do nothing
@@ -74,8 +72,7 @@ impl ModuleImportResolver for HostFunctions {
 }
 
 pub fn evaluate() {
-    let wasm_binary = // Spacer
-    include_bytes!("rust.wasm");
+    let wasm_binary = include_bytes!("rust.wasm");
 
     // Load wasm binary and prepare it for instantiation.
     let module = wasmi::Module::from_buffer(&wasm_binary).expect("failed to load wasm");
@@ -98,8 +95,5 @@ pub fn evaluate() {
         .try_into()
         .unwrap();
 
-    println!(
-        "{:?}",
-        result // .unwrap()
-    );
+    println!("{:?}", result);
 }

ableos/src/wasm/wasm_sys.rs

@@ -1,3 +1,5 @@
+#![allow(non_camel_case_types)]
+
 macro_rules! syscall_enum {
    () => {};
    (@get_last $Variant:ident) => {
@@ -25,7 +27,6 @@ macro_rules! syscall_enum {
       syscall_enum!($($Variant=$Value,)* );
    };
 }
-
 syscall_enum! {
    KILL=0,              // Provide a PID
    CONSOLE_RESET=1,     // Reset the console