wasm_exer
commit
2840c8ae97
|
|
@ -0,0 +1 @@
|
|||
/target
|
||||
|
|
@ -0,0 +1,226 @@
|
|||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "ableos-wasm-loader"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"wabt",
|
||||
"wasmi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "autocfg"
|
||||
version = "1.0.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
|
||||
|
||||
[[package]]
|
||||
name = "cc"
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||||
version = "1.0.72"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
|
||||
|
||||
[[package]]
|
||||
name = "cmake"
|
||||
version = "0.1.46"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "b7b858541263efe664aead4a5209a4ae5c5d2811167d4ed4ee0944503f8d2089"
|
||||
dependencies = [
|
||||
"cc",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "downcast-rs"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
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||||
[[package]]
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||||
name = "glob"
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version = "0.2.11"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
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[[package]]
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name = "itoa"
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version = "0.4.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
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[[package]]
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name = "libc"
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version = "0.2.107"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fbe5e23404da5b4f555ef85ebed98fb4083e55a00c317800bc2a50ede9f3d219"
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[[package]]
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name = "memory_units"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "num-bigint"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304"
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||||
dependencies = [
|
||||
"autocfg",
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||||
"num-integer",
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||||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "num-integer"
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||||
version = "0.1.44"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
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||||
dependencies = [
|
||||
"autocfg",
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||||
"num-traits",
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||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num-rational"
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||||
version = "0.2.4"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c000134b5dbf44adc5cb772486d335293351644b801551abe8f75c84cfa4aef"
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||||
dependencies = [
|
||||
"autocfg",
|
||||
"num-bigint",
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||||
"num-integer",
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||||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "num-traits"
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version = "0.2.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
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dependencies = [
|
||||
"autocfg",
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||||
]
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||||
|
||||
[[package]]
|
||||
name = "parity-wasm"
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version = "0.42.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "be5e13c266502aadf83426d87d81a0f5d1ef45b8027f5a471c360abfe4bfae92"
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[[package]]
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name = "proc-macro2"
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dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "quote"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "ryu"
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version = "1.0.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
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[[package]]
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name = "serde_derive"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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||||
"proc-macro2",
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||||
"quote",
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||||
"syn",
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||||
]
|
||||
|
||||
[[package]]
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||||
name = "serde_json"
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version = "1.0.69"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e466864e431129c7e0d3476b92f20458e5879919a0596c6472738d9fa2d342f8"
|
||||
dependencies = [
|
||||
"itoa",
|
||||
"ryu",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.81"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f2afee18b8beb5a596ecb4a2dce128c719b4ba399d34126b9e4396e3f9860966"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
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||||
version = "0.2.2"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
||||
|
||||
[[package]]
|
||||
name = "wabt"
|
||||
version = "0.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "00bef93d5e6c81a293bccf107cf43aa47239382f455ba14869d36695d8963b9c"
|
||||
dependencies = [
|
||||
"serde",
|
||||
"serde_derive",
|
||||
"serde_json",
|
||||
"wabt-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wabt-sys"
|
||||
version = "0.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a4e043159f63e16986e713e9b5e1c06043df4848565bf672e27c523864c7791"
|
||||
dependencies = [
|
||||
"cc",
|
||||
"cmake",
|
||||
"glob",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasmi"
|
||||
version = "0.9.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ca00c5147c319a8ec91ec1a0edbec31e566ce2c9cc93b3f9bb86a9efd0eb795d"
|
||||
dependencies = [
|
||||
"downcast-rs",
|
||||
"libc",
|
||||
"memory_units",
|
||||
"num-rational",
|
||||
"num-traits",
|
||||
"parity-wasm",
|
||||
"wasmi-validation",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasmi-validation"
|
||||
version = "0.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "165343ecd6c018fc09ebcae280752702c9a2ef3e6f8d02f1cfcbdb53ef6d7937"
|
||||
dependencies = [
|
||||
"parity-wasm",
|
||||
]
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
[package]
|
||||
name = "ableos-wasm-loader"
|
||||
version = "0.1.0"
|
||||
edition = "2018"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
wasmi="*"
|
||||
wabt="*"
|
||||
|
|
@ -0,0 +1,105 @@
|
|||
extern crate wabt;
|
||||
extern crate wasmi;
|
||||
|
||||
use wasmi::{
|
||||
Error, Externals, FuncInstance, FuncRef, ImportsBuilder, ModuleImportResolver, ModuleInstance,
|
||||
RuntimeArgs, RuntimeValue, Signature, Trap, ValueType,
|
||||
};
|
||||
|
||||
pub const KILL: usize = 0;
|
||||
pub const ADD_FUNC_INDEX: usize = 1;
|
||||
|
||||
struct HostFunctions;
|
||||
impl HostFunctions {
|
||||
fn check_signature(&self, index: usize, signature: &Signature) -> bool {
|
||||
let (params, ret_ty): (&[ValueType], Option<ValueType>) = match index {
|
||||
ADD_FUNC_INDEX => (&[ValueType::I32, ValueType::I32], Some(ValueType::I32)),
|
||||
_ => return false,
|
||||
};
|
||||
signature.params() == params && signature.return_type() == ret_ty
|
||||
}
|
||||
}
|
||||
|
||||
impl Externals for HostFunctions {
|
||||
fn invoke_index(
|
||||
&mut self,
|
||||
index: usize,
|
||||
args: RuntimeArgs,
|
||||
) -> Result<Option<RuntimeValue>, Trap> {
|
||||
match index {
|
||||
ADD_FUNC_INDEX => {
|
||||
println!("you pe");
|
||||
let a: u32 = args.nth_checked(0)?;
|
||||
let b: u32 = args.nth_checked(1)?;
|
||||
let result = a + b;
|
||||
|
||||
Ok(Some(RuntimeValue::I32(result as i32)))
|
||||
}
|
||||
_ => panic!("Unimplemented function at {}", index),
|
||||
}
|
||||
}
|
||||
}
|
||||
impl ModuleImportResolver for HostFunctions {
|
||||
fn resolve_func(&self, field_name: &str, signature: &Signature) -> Result<FuncRef, Error> {
|
||||
let index = match field_name {
|
||||
"add" => ADD_FUNC_INDEX,
|
||||
_ => {
|
||||
return Err(Error::Instantiation(format!(
|
||||
"Export {} not found",
|
||||
field_name
|
||||
)))
|
||||
}
|
||||
};
|
||||
|
||||
if !self.check_signature(index, signature) {
|
||||
return Err(Error::Instantiation(format!(
|
||||
"Export {} has a bad signature",
|
||||
field_name
|
||||
)));
|
||||
}
|
||||
|
||||
Ok(FuncInstance::alloc_host(
|
||||
Signature::new(&[ValueType::I32, ValueType::I32][..], Some(ValueType::I32)),
|
||||
index,
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
// Parse WAT (WebAssembly Text format) into wasm bytecode.
|
||||
let wasm_binary = wabt::wat2wasm(include_str!("test.wat"));
|
||||
|
||||
let wasm_binary = match wasm_binary {
|
||||
Ok(abc) => abc,
|
||||
Err(abc) => {
|
||||
println!("{}", abc);
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
// .expect("failed to parse wat");
|
||||
|
||||
// Load wasm binary and prepare it for instantiation.
|
||||
let module = wasmi::Module::from_buffer(&wasm_binary).expect("failed to load wasm");
|
||||
|
||||
// Instantiate a module with empty imports and
|
||||
// assert that there is no `start` function.
|
||||
let instance = ModuleInstance::new(&module, &ImportsBuilder::default())
|
||||
.expect("failed to instantiate wasm module")
|
||||
.assert_no_start();
|
||||
|
||||
// Finally, invoke the exported function "test" with no parameters
|
||||
// and empty external function executor.
|
||||
let result: i32 = instance
|
||||
.invoke_export("main", &[], &mut HostFunctions)
|
||||
// .with_resolver(&mut HostFunctions)
|
||||
.expect("failed to execute export")
|
||||
.unwrap()
|
||||
.try_into()
|
||||
.unwrap();
|
||||
|
||||
println!(
|
||||
"{:?}",
|
||||
result // .unwrap()
|
||||
);
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
(module
|
||||
(import "host" "add" (func $add (param i32 i32)(result i32)))
|
||||
(func (export "main") (result i32)
|
||||
(call $add (i32.const 123) (i32.const 456))
|
||||
(; i32.const 1337 ;)
|
||||
)
|
||||
)
|
||||
|
||||
|
||||
|
||||
(;;
|
||||
(func $main (export "_start")
|
||||
(; (call $print_greeting) ;)
|
||||
return
|
||||
)
|
||||
;;)
|
||||
Reference in New Issue