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Debugging improvements

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This commit is contained in:
Brian Carroll 2021-11-30 09:48:15 +00:00
parent 8a137126fe
commit a08633fd36
5 changed files with 59 additions and 41 deletions
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57
compiler/test_gen/src/helpers/wasm.rs
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@ -167,33 +167,42 @@ pub fn helper_wasm<'a, T: Wasm32TestResult>(
// write the module to a file so the linker can access it
std::fs::write(&app_o_file, &module_bytes).unwrap();
let _linker_output = std::process::Command::new("zig")
.args(&[
"wasm-ld",
// input files
app_o_file.to_str().unwrap(),
bitcode::BUILTINS_WASM32_OBJ_PATH,
libc_a_file,
// output
"-o",
final_wasm_file.to_str().unwrap(),
// we don't define `_start`
"--no-entry",
// If you only specify test_wrapper, it will stop at the call to UserApp_main_1
// But if you specify both exports, you get all the dependencies.
//
// It seems that it will not write out an export you didn't explicitly specify,
// even if it's a dependency of another export!
// In our case we always export main and test_wrapper so that's OK.
"--export",
"test_wrapper",
"--export",
"#UserApp_main_1",
])
let args = &[
"wasm-ld",
// input files
app_o_file.to_str().unwrap(),
bitcode::BUILTINS_WASM32_OBJ_PATH,
libc_a_file,
// output
"-o",
final_wasm_file.to_str().unwrap(),
// we don't define `_start`
"--no-entry",
// If you only specify test_wrapper, it will stop at the call to UserApp_main_1
// But if you specify both exports, you get all the dependencies.
//
// It seems that it will not write out an export you didn't explicitly specify,
// even if it's a dependency of another export!
// In our case we always export main and test_wrapper so that's OK.
"--export",
"test_wrapper",
"--export",
"#UserApp_main_1",
];
let linker_output = std::process::Command::new("zig")
.args(args)
.output()
.unwrap();
// dbg!(_linker_output);
if !linker_output.status.success() {
print!("\nLINKER FAILED\n");
for arg in args {
print!("{} ", arg);
}
println!("\n{}", std::str::from_utf8(&linker_output.stdout).unwrap());
println!("{}", std::str::from_utf8(&linker_output.stderr).unwrap());
}
Module::from_file(&store, &final_wasm_file).unwrap()
};