mirror of
https://github.com/fluencelabs/wasmer
synced 2025-03-21 18:40:51 +00:00
caf2205936
Implementation Notes:
- To avoid setjmp, longjmp, and the mess that those create, we instead set the interrupting
context of the signal handler to return into the `throw_trap` routine. To my surprise,
this actually works. The stack ends up getting unwound normally and the memory-oob error
is caught by the trampoline.
39 lines
771 B
Rust
39 lines
771 B
Rust
use wasmer_runtime::{compile, error, imports, Func, Value};
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use wabt::wat2wasm;
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static WAT: &'static str = r#"
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(module
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(memory 1)
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(type (;0;) (func (param i32) (result i32)))
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(func (;0;) (type 0) (param i32) (result i32)
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i32.const 0x20000
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i32.load
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)
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(export "select_trap_l" (func 0))
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)
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"#;
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fn get_wasm() -> Vec<u8> {
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wat2wasm(WAT).unwrap()
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}
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fn main() -> Result<(), error::Error> {
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let wasm = get_wasm();
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let module = compile(&wasm)?;
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let imports = imports! {};
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println!("instantiating");
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let instance = module.instantiate(&imports)?;
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let foo = instance.dyn_func("select_trap_l")?;
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let result = foo.call(&[Value::I32(0)]);
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println!("result: {:?}", result);
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Ok(())
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}
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