Files
wasmtime/tests/debug/translate.rs
2020-03-05 11:53:39 -06:00

58 lines
1.7 KiB
Rust

use super::dump::{get_dwarfdump, DwarfDumpSection};
use super::obj::compile_cranelift;
use anyhow::{format_err, Result};
use filecheck::{CheckerBuilder, NO_VARIABLES};
use std::fs::read;
use tempfile::NamedTempFile;
#[allow(dead_code)]
fn check_wasm(wasm_path: &str, directives: &str) -> Result<()> {
let wasm = read(wasm_path)?;
let obj_file = NamedTempFile::new()?;
let obj_path = obj_file.path().to_str().unwrap();
compile_cranelift(&wasm, None, obj_path)?;
let dump = get_dwarfdump(obj_path, DwarfDumpSection::DebugInfo)?;
let mut builder = CheckerBuilder::new();
builder
.text(directives)
.map_err(|e| format_err!("unable to build checker: {:?}", e))?;
let checker = builder.finish();
let check = checker
.explain(&dump, NO_VARIABLES)
.map_err(|e| format_err!("{:?}", e))?;
assert!(check.0, "didn't pass check {}", check.1);
Ok(())
}
#[test]
#[ignore]
#[cfg(all(
any(target_os = "linux", target_os = "macos"),
target_pointer_width = "64"
))]
fn test_debug_dwarf_translate() -> Result<()> {
check_wasm(
"tests/debug/testsuite/fib-wasm.wasm",
r##"
check: DW_TAG_compile_unit
# We have "fib" function
check: DW_TAG_subprogram
check: DW_AT_name ("fib")
# Accepts one parameter
check: DW_TAG_formal_parameter
check: DW_AT_name ("n")
check: DW_AT_decl_line (5)
# Has four locals: i, t, a, b
check: DW_TAG_variable
check: DW_AT_name ("i")
check: DW_AT_decl_line (6)
check: DW_TAG_variable
check: DW_AT_name ("t")
check: DW_TAG_variable
check: DW_AT_name ("a")
check: DW_TAG_variable
check: DW_AT_name ("b")
"##,
)
}