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feat(gs/achilles): Implement extern decls, for glibc functions

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Implement extern decls, which codegen to LLVM as forward-declared
functions, and use these as a hook into calling glibc functions.

We can print to the terminal now! The integration tests can test this
now.

Change-Id: I70af4546b417b888ad9fbb18798db240f77f4e71
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2614
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
This commit is contained in:
Griffin Smith 2021-03-19 20:46:19 -04:00 • committed by glittershark
parent fec6595d21
commit 2c838ab845
9 changed files with 147 additions and 28 deletions
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53
users/glittershark/achilles/tests/compile.rs
View file

@ -2,7 +2,30 @@ use std::process::Command;
use crate_root::root;
const FIXTURES: &[(&str, i32)] = &[("simple", 5), ("functions", 9)];
struct Fixture {
name: &'static str,
exit_code: i32,
expected_output: &'static str,
}
const FIXTURES: &[Fixture] = &[
Fixture {
name: "simple",
exit_code: 5,
expected_output: "",
},
// TODO(grfn): needs monomorphization
// Fixture {
// name: "functions",
// exit_code: 9,
// expected_output: "",
// },
Fixture {
name: "externs",
exit_code: 0,
expected_output: "foobar\n",
},
];
#[test]
fn compile_and_run_files() {
@ -21,13 +44,18 @@ fn compile_and_run_files() {
"make clean failed"
);
for (fixture, exit_code) in FIXTURES {
println!(">>> Testing: {}", fixture);
for Fixture {
name,
exit_code,
expected_output,
} in FIXTURES
{
println!(">>> Testing: {}", name);
println!(" Running: `make {}`", fixture);
println!(" Running: `make {}`", name);
assert!(
Command::new("make")
.arg(fixture)
.arg(name)
.current_dir(&ach)
.spawn()
.unwrap()
@ -37,18 +65,11 @@ fn compile_and_run_files() {
"make failed"
);
let out_path = ach.join(fixture);
let out_path = ach.join(name);
println!(" Running: `{}`", out_path.to_str().unwrap());
assert_eq!(
Command::new(out_path)
.spawn()
.unwrap()
.wait()
.unwrap()
.code()
.unwrap(),
*exit_code,
);
let output = Command::new(out_path).output().unwrap();
assert_eq!(output.status.code().unwrap(), *exit_code,);
assert_eq!(output.stdout, expected_output.as_bytes());
println!(" OK");
}
}