use std::collections::{HashMap, HashSet}; use std::fs; use std::process::Command; use std::sync::Arc; use inkwell::{ passes::{PassManager, PassManagerBuilder}, targets::*, OptimizationLevel, }; use pyo3::prelude::*; use pyo3::{exceptions, types::PyList, types::PyBytes}; use nac3parser::{ ast::{self, StrRef}, parser::{self, parse_program}, }; use parking_lot::{Mutex, RwLock}; use nac3core::{ codegen::{concrete_type::ConcreteTypeStore, CodeGenTask, WithCall, WorkerRegistry}, symbol_resolver::SymbolResolver, toplevel::{composer::TopLevelComposer, DefinitionId, GenCall, TopLevelContext, TopLevelDef}, typecheck::typedef::{FunSignature, FuncArg}, typecheck::{type_inferencer::PrimitiveStore, typedef::Type}, }; use tempfile::{self, TempDir}; use crate::{codegen::ArtiqCodeGenerator, symbol_resolver::Resolver}; mod codegen; mod symbol_resolver; mod timeline; use timeline::TimeFns; #[derive(PartialEq, Clone, Copy)] enum Isa { Host, RiscV, CortexA9, } #[derive(Clone)] pub struct PrimitivePythonId { int: u64, int32: u64, int64: u64, float: u64, bool: u64, list: u64, tuple: u64, } // TopLevelComposer is unsendable as it holds the unification table, which is // unsendable due to Rc. Arc would cause a performance hit. #[pyclass(unsendable, name = "NAC3")] struct Nac3 { isa: Isa, time_fns: &'static (dyn TimeFns + Sync), primitive: PrimitiveStore, builtins_ty: HashMap, builtins_def: HashMap, pyid_to_def: Arc>>, pyid_to_type: Arc>>, composer: TopLevelComposer, top_level: Option>, to_be_registered: Vec, primitive_ids: PrimitivePythonId, global_value_ids: Arc>>, working_directory: TempDir, } impl Nac3 { fn register_module_impl(&mut self, obj: PyObject) -> PyResult<()> { let mut name_to_pyid: HashMap = HashMap::new(); let (module_name, source_file) = Python::with_gil(|py| -> PyResult<(String, String)> { let obj: &PyAny = obj.extract(py)?; let builtins = PyModule::import(py, "builtins")?; let id_fn = builtins.getattr("id")?; let members: &PyList = PyModule::import(py, "inspect")? .getattr("getmembers")? .call1((obj,))? .cast_as()?; for member in members.iter() { let key: &str = member.get_item(0)?.extract()?; let val = id_fn.call1((member.get_item(1)?,))?.extract()?; name_to_pyid.insert(key.into(), val); } Ok(( obj.getattr("__name__")?.extract()?, obj.getattr("__file__")?.extract()?, )) })?; let source = fs::read_to_string(source_file).map_err(|e| { exceptions::PyIOError::new_err(format!("failed to read input file: {}", e)) })?; let parser_result = parser::parse_program(&source) .map_err(|e| exceptions::PySyntaxError::new_err(format!("parse error: {}", e)))?; let resolver = Arc::new(Resolver { id_to_type: self.builtins_ty.clone().into(), id_to_def: self.builtins_def.clone().into(), pyid_to_def: self.pyid_to_def.clone(), pyid_to_type: self.pyid_to_type.clone(), primitive_ids: self.primitive_ids.clone(), global_value_ids: self.global_value_ids.clone(), class_names: Default::default(), name_to_pyid: name_to_pyid.clone(), module: obj, }) as Arc; let mut name_to_def = HashMap::new(); let mut name_to_type = HashMap::new(); for mut stmt in parser_result.into_iter() { let include = match stmt.node { ast::StmtKind::ClassDef { ref decorator_list, ref mut body, .. } => { let kernels = decorator_list.iter().any(|decorator| { if let ast::ExprKind::Name { id, .. } = decorator.node { id.to_string() == "nac3" } else { false } }); body.retain(|stmt| { if let ast::StmtKind::FunctionDef { ref decorator_list, .. } = stmt.node { decorator_list.iter().any(|decorator| { if let ast::ExprKind::Name { id, .. } = decorator.node { id.to_string() == "kernel" || id.to_string() == "portable" } else { false } }) } else { true } }); kernels } ast::StmtKind::FunctionDef { ref decorator_list, .. } => decorator_list.iter().any(|decorator| { if let ast::ExprKind::Name { id, .. } = decorator.node { let id = id.to_string(); id == "extern" || id == "portable" || id == "kernel" } else { false } }), _ => false, }; if include { let (name, def_id, ty) = self .composer .register_top_level(stmt, Some(resolver.clone()), module_name.clone()) .unwrap(); name_to_def.insert(name, def_id); if let Some(ty) = ty { name_to_type.insert(name, ty); } } } let mut map = self.pyid_to_def.write(); for (name, def) in name_to_def.into_iter() { map.insert(*name_to_pyid.get(&name).unwrap(), def); } let mut map = self.pyid_to_type.write(); for (name, ty) in name_to_type.into_iter() { map.insert(*name_to_pyid.get(&name).unwrap(), ty); } Ok(()) } } #[pymethods] impl Nac3 { #[new] fn new(isa: &str, py: Python) -> PyResult { let isa = match isa { "host" => Isa::Host, "riscv" => Isa::RiscV, "cortexa9" => Isa::CortexA9, _ => return Err(exceptions::PyValueError::new_err("invalid ISA")), }; let time_fns: &(dyn TimeFns + Sync) = match isa { Isa::Host => &timeline::EXTERN_TIME_FNS, Isa::RiscV => &timeline::NOW_PINNING_TIME_FNS, Isa::CortexA9 => &timeline::EXTERN_TIME_FNS, }; let primitive: PrimitiveStore = TopLevelComposer::make_primitives().0; let builtins = vec![ ( "now_mu".into(), FunSignature { args: vec![], ret: primitive.int64, vars: HashMap::new(), }, Arc::new(GenCall::new(Box::new(move |ctx, _, _, _| { Some(time_fns.emit_now_mu(ctx)) }))), ), ( "at_mu".into(), FunSignature { args: vec![FuncArg { name: "t".into(), ty: primitive.int64, default_value: None, }], ret: primitive.none, vars: HashMap::new(), }, Arc::new(GenCall::new(Box::new(move |ctx, _, _, args| { time_fns.emit_at_mu(ctx, args[0].1); None }))), ), ( "delay_mu".into(), FunSignature { args: vec![FuncArg { name: "dt".into(), ty: primitive.int64, default_value: None, }], ret: primitive.none, vars: HashMap::new(), }, Arc::new(GenCall::new(Box::new(move |ctx, _, _, args| { time_fns.emit_delay_mu(ctx, args[0].1); None }))), ), ]; let (composer, builtins_def, builtins_ty) = TopLevelComposer::new(builtins); let builtins_mod = PyModule::import(py, "builtins").unwrap(); let id_fn = builtins_mod.getattr("id").unwrap(); let numpy_mod = PyModule::import(py, "numpy").unwrap(); let primitive_ids = PrimitivePythonId { int: id_fn .call1((builtins_mod.getattr("int").unwrap(),)) .unwrap() .extract() .unwrap(), int32: id_fn .call1((numpy_mod.getattr("int32").unwrap(),)) .unwrap() .extract() .unwrap(), int64: id_fn .call1((numpy_mod.getattr("int64").unwrap(),)) .unwrap() .extract() .unwrap(), bool: id_fn .call1((builtins_mod.getattr("bool").unwrap(),)) .unwrap() .extract() .unwrap(), float: id_fn .call1((builtins_mod.getattr("float").unwrap(),)) .unwrap() .extract() .unwrap(), list: id_fn .call1((builtins_mod.getattr("list").unwrap(),)) .unwrap() .extract() .unwrap(), tuple: id_fn .call1((builtins_mod.getattr("tuple").unwrap(),)) .unwrap() .extract() .unwrap(), }; let working_directory = tempfile::Builder::new().prefix("nac3-").tempdir().unwrap(); fs::write(working_directory.path().join("kernel.ld"), include_bytes!("kernel.ld")).unwrap(); Ok(Nac3 { isa, time_fns, primitive, builtins_ty, builtins_def, composer, primitive_ids, top_level: None, pyid_to_def: Default::default(), pyid_to_type: Default::default(), to_be_registered: Default::default(), global_value_ids: Default::default(), working_directory }) } fn register_module(&mut self, obj: PyObject) { // Delay registration until all referenced variables are supposed to exist on the CPython side self.to_be_registered.push(obj); } fn analyze(&mut self) -> PyResult<()> { for obj in std::mem::take(&mut self.to_be_registered).into_iter() { self.register_module_impl(obj)?; } Ok(()) } fn compile_method_to_file( &mut self, obj: &PyAny, method_name: &str, args: Vec<&PyAny>, filename: &str, py: Python, ) -> PyResult<()> { let id_fun = PyModule::import(py, "builtins")?.getattr("id")?; let mut name_to_pyid: HashMap = HashMap::new(); let module = PyModule::new(py, "tmp")?; module.add("base", obj)?; name_to_pyid.insert("base".into(), id_fun.call1((obj,))?.extract()?); let mut arg_names = vec![]; for (i, arg) in args.into_iter().enumerate() { let name = format!("tmp{}", i); module.add(&name, arg)?; name_to_pyid.insert(name.clone().into(), id_fun.call1((arg,))?.extract()?); arg_names.push(name); } let synthesized = if method_name.is_empty() { format!("def __modinit__():\n base({})", arg_names.join(", ")) } else { format!( "def __modinit__():\n base.{}({})", method_name, arg_names.join(", ") ) }; let mut synthesized = parse_program(&synthesized).unwrap(); let resolver = Arc::new(Resolver { id_to_type: self.builtins_ty.clone().into(), id_to_def: self.builtins_def.clone().into(), pyid_to_def: self.pyid_to_def.clone(), pyid_to_type: self.pyid_to_type.clone(), primitive_ids: self.primitive_ids.clone(), global_value_ids: self.global_value_ids.clone(), class_names: Default::default(), name_to_pyid, module: module.to_object(py), }) as Arc; let (_, def_id, _) = self .composer .register_top_level( synthesized.pop().unwrap(), Some(resolver.clone()), "".into(), ) .unwrap(); let signature = FunSignature { args: vec![], ret: self.primitive.none, vars: HashMap::new(), }; let mut store = ConcreteTypeStore::new(); let mut cache = HashMap::new(); let signature = store.from_signature( &mut self.composer.unifier, &self.primitive, &signature, &mut cache, ); let signature = store.add_cty(signature); self.composer.start_analysis(true).unwrap(); self.top_level = Some(Arc::new(self.composer.make_top_level_context())); let top_level = self.top_level.as_ref().unwrap(); let instance = { let defs = top_level.definitions.read(); let mut definition = defs[def_id.0].write(); if let TopLevelDef::Function { instance_to_stmt, instance_to_symbol, .. } = &mut *definition { instance_to_symbol.insert("".to_string(), "__modinit__".into()); instance_to_stmt[""].clone() } else { unreachable!() } }; let task = CodeGenTask { subst: Default::default(), symbol_name: "__modinit__".to_string(), body: instance.body, signature, resolver, store, unifier_index: instance.unifier_id, calls: instance.calls, }; let isa = self.isa; let working_directory = self.working_directory.path().to_owned(); let f = Arc::new(WithCall::new(Box::new(move |module| { let builder = PassManagerBuilder::create(); builder.set_optimization_level(OptimizationLevel::Default); let passes = PassManager::create(()); builder.populate_module_pass_manager(&passes); passes.run_on(module); let (triple, features) = match isa { Isa::Host => (TargetMachine::get_default_triple(), TargetMachine::get_host_cpu_features().to_string()), Isa::RiscV => (TargetTriple::create("riscv32-unknown-linux"), "+a,+m".to_string()), Isa::CortexA9 => ( TargetTriple::create("armv7-unknown-linux-gnueabihf"), "+dsp,+fp16,+neon,+vfp3".to_string(), ), }; let target = Target::from_triple(&triple).expect("couldn't create target from target triple"); let target_machine = target .create_target_machine( &triple, "", &features, OptimizationLevel::Default, RelocMode::PIC, CodeModel::Default, ) .expect("couldn't create target machine"); target_machine .write_to_file( module, FileType::Object, &working_directory.join(&format!("{}.o", module.get_name().to_str().unwrap())), ) .expect("couldn't write module to file"); }))); let thread_names: Vec = (0..4).map(|i| format!("module{}", i)).collect(); let threads: Vec<_> = thread_names .iter() .map(|s| Box::new(ArtiqCodeGenerator::new(s.to_string(), self.time_fns))) .collect(); py.allow_threads(|| { let (registry, handles) = WorkerRegistry::create_workers(threads, top_level.clone(), f); registry.add_task(task); registry.wait_tasks_complete(handles); }); let mut linker_args = vec![ "-shared".to_string(), "--eh-frame-hdr".to_string(), "-x".to_string(), "-o".to_string(), filename.to_string(), ]; if isa != Isa::Host { linker_args.push("-T".to_string() + self.working_directory.path().join("kernel.ld").to_str().unwrap()); } linker_args.extend(thread_names.iter().map(|name| { let name_o = name.to_owned() + ".o"; self.working_directory.path().join(name_o.as_str()).to_str().unwrap().to_string() })); if let Ok(linker_status) = Command::new("ld.lld").args(linker_args).status() { if !linker_status.success() { return Err(exceptions::PyRuntimeError::new_err( "failed to start linker", )); } } else { return Err(exceptions::PyRuntimeError::new_err( "linker returned non-zero status code", )); } Ok(()) } fn compile_method_to_mem( &mut self, obj: &PyAny, method_name: &str, args: Vec<&PyAny>, py: Python, ) -> PyResult { let filename_path = self.working_directory.path().join("module.elf"); let filename = filename_path.to_str().unwrap(); self.compile_method_to_file(obj, method_name, args, filename, py)?; Ok(PyBytes::new(py, &fs::read(filename).unwrap()).into()) } } #[pymodule] fn nac3artiq(_py: Python, m: &PyModule) -> PyResult<()> { Target::initialize_all(&InitializationConfig::default()); m.add_class::()?; Ok(()) }