15c68f2cc1
* Moves CodeMemory, VMInterrupts and SignatureRegistry from Compiler * CompiledModule holds CodeMemory and GdbJitImageRegistration * Store keeps track of its JIT code * Makes "jit_int.rs" stuff Send+Sync * Adds the threads example.
31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
//! Example of enabling debuginfo for wasm code which allows interactive
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//! debugging of the wasm code. When using recent versions of LLDB
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//! you can debug this executable and set breakpoints in wasm code and look at
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//! the rust source code as input.
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// To execute this example you'll need to run two commands:
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//
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// cargo build -p example-fib-wasm --target wasm32-unknown-unknown
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// cargo run --example fib-debug
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use anyhow::Result;
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use wasmtime::*;
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fn main() -> Result<()> {
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// Load our previously compiled wasm file (built previously with Cargo) and
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// also ensure that we generate debuginfo so this executable can be
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// debugged in GDB.
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let engine = Engine::new(Config::new().debug_info(true));
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let store = Store::new(&engine);
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let module = Module::from_file(&engine, "target/wasm32-unknown-unknown/debug/fib.wasm")?;
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let instance = Instance::new(&store, &module, &[])?;
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// Invoke `fib` export
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let fib = instance
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.get_func("fib")
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.ok_or(anyhow::format_err!("failed to find `fib` function export"))?
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.get1::<i32, i32>()?;
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println!("fib(6) = {}", fib(6)?);
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Ok(())
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}
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