forked from AbleOS/ableos
47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
use alloc::vec::Vec;
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use log::trace;
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use wasmi::{Caller, Func, Linker, Module, Store};
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pub fn wasm() -> Result<(), wasmi::Error> {
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use wasmi::Config;
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use wasmi::Engine;
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trace!("");
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let conf = Config::default();
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let engine = Engine::new(&conf);
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trace!("Engine constructed");
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let wasm = include_bytes!("../../wasm_syscall_test.wasm");
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trace!("Loading WASM binary");
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let module = Module::new(&engine, &wasm[..]).unwrap();
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trace!("Constructing wasm module");
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let mut store = Store::new(&engine, 42);
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trace!("constructing host store");
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let read_mem_addr = Func::wrap(&mut store, |caller: Caller<'_, HostState>, param: u64| {
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read_memory_address(caller, param);
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panic!(":)")
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});
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let mut linker = <Linker<HostState>>::new(&engine);
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linker.define("host", "read_mem_addr", read_mem_addr)?;
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trace!("Linked read_mem_addr");
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let instance = linker.instantiate(&mut store, &module)?.start(&mut store)?;
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trace!("Instanced the engine and module");
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let hello = instance.get_typed_func::<(), ()>(&store, "_start")?;
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hello.call(&mut store, ())?;
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trace!("Called _start");
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Ok(())
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}
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pub type HostState = u32;
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pub fn read_memory_address(caller: Caller<'_, HostState>, address: u64) -> u64 {
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trace!("Address: {}", address);
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0
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}
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