diff options
Diffstat (limited to 'compiler/rustc_interface/src')
| -rw-r--r-- | compiler/rustc_interface/src/callbacks.rs | 5 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/errors.rs | 20 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/passes.rs | 95 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/tests.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_interface/src/util.rs | 35 |
5 files changed, 71 insertions, 85 deletions
diff --git a/compiler/rustc_interface/src/callbacks.rs b/compiler/rustc_interface/src/callbacks.rs index f66b9eb3a28..7c6b7157f71 100644 --- a/compiler/rustc_interface/src/callbacks.rs +++ b/compiler/rustc_interface/src/callbacks.rs @@ -14,6 +14,7 @@ use std::fmt; use rustc_errors::{DiagInner, TRACK_DIAGNOSTIC}; use rustc_middle::dep_graph::{DepNodeExt, TaskDepsRef}; use rustc_middle::ty::tls; +use rustc_query_impl::QueryCtxt; use rustc_query_system::dep_graph::dep_node::default_dep_kind_debug; use rustc_query_system::dep_graph::{DepContext, DepKind, DepNode}; @@ -41,9 +42,7 @@ fn track_span_parent(def_id: rustc_span::def_id::LocalDefId) { fn track_diagnostic<R>(diagnostic: DiagInner, f: &mut dyn FnMut(DiagInner) -> R) -> R { tls::with_context_opt(|icx| { if let Some(icx) = icx { - if let Some(diagnostics) = icx.diagnostics { - diagnostics.lock().extend(Some(diagnostic.clone())); - } + icx.tcx.dep_graph.record_diagnostic(QueryCtxt::new(icx.tcx), &diagnostic); // Diagnostics are tracked, we can ignore the dependency. let icx = tls::ImplicitCtxt { task_deps: TaskDepsRef::Ignore, ..icx.clone() }; diff --git a/compiler/rustc_interface/src/errors.rs b/compiler/rustc_interface/src/errors.rs index eed729a1777..6b39b4f1891 100644 --- a/compiler/rustc_interface/src/errors.rs +++ b/compiler/rustc_interface/src/errors.rs @@ -74,26 +74,6 @@ pub struct TempsDirError; pub struct OutDirError; #[derive(Diagnostic)] -#[diag(interface_cant_emit_mir)] -pub struct CantEmitMIR { - pub error: io::Error, -} - -#[derive(Diagnostic)] -#[diag(interface_rustc_error_fatal)] -pub struct RustcErrorFatal { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] -#[diag(interface_rustc_error_unexpected_annotation)] -pub struct RustcErrorUnexpectedAnnotation { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] #[diag(interface_failed_writing_file)] pub struct FailedWritingFile<'a> { pub path: &'a Path, diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index e47385d0899..93013c8b3f6 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -1,5 +1,5 @@ use std::any::Any; -use std::ffi::OsString; +use std::ffi::{OsStr, OsString}; use std::io::{self, BufWriter, Write}; use std::path::{Path, PathBuf}; use std::sync::{Arc, LazyLock, OnceLock}; @@ -19,6 +19,7 @@ use rustc_incremental::setup_dep_graph; use rustc_lint::{BufferedEarlyLint, EarlyCheckNode, LintStore, unerased_lint_store}; use rustc_metadata::creader::CStore; use rustc_middle::arena::Arena; +use rustc_middle::dep_graph::DepsType; use rustc_middle::ty::{self, CurrentGcx, GlobalCtxt, RegisteredTools, TyCtxt}; use rustc_middle::util::Providers; use rustc_parse::{ @@ -360,6 +361,31 @@ fn early_lint_checks(tcx: TyCtxt<'_>, (): ()) { ) } +fn env_var_os<'tcx>(tcx: TyCtxt<'tcx>, key: &'tcx OsStr) -> Option<&'tcx OsStr> { + let value = env::var_os(key); + + let value_tcx = value.as_ref().map(|value| { + let encoded_bytes = tcx.arena.alloc_slice(value.as_encoded_bytes()); + debug_assert_eq!(value.as_encoded_bytes(), encoded_bytes); + // SAFETY: The bytes came from `as_encoded_bytes`, and we assume that + // `alloc_slice` is implemented correctly, and passes the same bytes + // back (debug asserted above). + unsafe { OsStr::from_encoded_bytes_unchecked(encoded_bytes) } + }); + + // Also add the variable to Cargo's dependency tracking + // + // NOTE: This only works for passes run before `write_dep_info`. See that + // for extension points for configuring environment variables to be + // properly change-tracked. + tcx.sess.psess.env_depinfo.borrow_mut().insert(( + Symbol::intern(&key.to_string_lossy()), + value.as_ref().and_then(|value| value.to_str()).map(|value| Symbol::intern(&value)), + )); + + value_tcx +} + // Returns all the paths that correspond to generated files. fn generated_output_paths( tcx: TyCtxt<'_>, @@ -724,6 +750,7 @@ pub static DEFAULT_QUERY_PROVIDERS: LazyLock<Providers> = LazyLock::new(|| { |tcx, _| tcx.arena.alloc_from_iter(tcx.resolutions(()).stripped_cfg_items.steal()); providers.resolutions = |tcx, ()| tcx.resolver_for_lowering_raw(()).1; providers.early_lint_checks = early_lint_checks; + providers.env_var_os = env_var_os; limits::provide(providers); proc_macro_decls::provide(providers); rustc_const_eval::provide(providers); @@ -774,7 +801,9 @@ pub fn create_and_enter_global_ctxt<T, F: for<'tcx> FnOnce(TyCtxt<'tcx>) -> T>( sess.cfg_version, ); let outputs = util::build_output_filenames(&pre_configured_attrs, sess); - let dep_graph = setup_dep_graph(sess, crate_name); + + let dep_type = DepsType { dep_names: rustc_query_impl::dep_kind_names() }; + let dep_graph = setup_dep_graph(sess, crate_name, &dep_type); let cstore = FreezeLock::new(Box::new(CStore::new(compiler.codegen_backend.metadata_loader())) as _); @@ -1038,46 +1067,25 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) { }); } -/// Check for the `#[rustc_error]` annotation, which forces an error in codegen. This is used -/// to write UI tests that actually test that compilation succeeds without reporting -/// an error. -fn check_for_rustc_errors_attr(tcx: TyCtxt<'_>) { - let Some((def_id, _)) = tcx.entry_fn(()) else { return }; - for attr in tcx.get_attrs(def_id, sym::rustc_error) { - match attr.meta_item_list() { - // Check if there is a `#[rustc_error(delayed_bug_from_inside_query)]`. - Some(list) - if list.iter().any(|list_item| { - matches!( - list_item.ident().map(|i| i.name), - Some(sym::delayed_bug_from_inside_query) - ) - }) => - { - tcx.ensure_ok().trigger_delayed_bug(def_id); - } - - // Bare `#[rustc_error]`. - None => { - tcx.dcx().emit_fatal(errors::RustcErrorFatal { span: tcx.def_span(def_id) }); - } - - // Some other attribute. - Some(_) => { - tcx.dcx().emit_warn(errors::RustcErrorUnexpectedAnnotation { - span: tcx.def_span(def_id), - }); - } - } - } -} - /// Runs the codegen backend, after which the AST and analysis can /// be discarded. pub(crate) fn start_codegen<'tcx>( codegen_backend: &dyn CodegenBackend, tcx: TyCtxt<'tcx>, ) -> Box<dyn Any> { + // Hook for tests. + if let Some((def_id, _)) = tcx.entry_fn(()) + && tcx.has_attr(def_id, sym::rustc_delayed_bug_from_inside_query) + { + tcx.ensure_ok().trigger_delayed_bug(def_id); + } + + // Don't run this test assertions when not doing codegen. Compiletest tries to build + // build-fail tests in check mode first and expects it to not give an error in that case. + if tcx.sess.opts.output_types.should_codegen() { + rustc_symbol_mangling::test::report_symbol_names(tcx); + } + // Don't do code generation if there were any errors. Likewise if // there were any delayed bugs, because codegen will likely cause // more ICEs, obscuring the original problem. @@ -1085,9 +1093,6 @@ pub(crate) fn start_codegen<'tcx>( guar.raise_fatal(); } - // Hook for UI tests. - check_for_rustc_errors_attr(tcx); - info!("Pre-codegen\n{:?}", tcx.debug_stats()); let (metadata, need_metadata_module) = rustc_metadata::fs::encode_and_write_metadata(tcx); @@ -1096,20 +1101,8 @@ pub(crate) fn start_codegen<'tcx>( codegen_backend.codegen_crate(tcx, metadata, need_metadata_module) }); - // Don't run this test assertions when not doing codegen. Compiletest tries to build - // build-fail tests in check mode first and expects it to not give an error in that case. - if tcx.sess.opts.output_types.should_codegen() { - rustc_symbol_mangling::test::report_symbol_names(tcx); - } - info!("Post-codegen\n{:?}", tcx.debug_stats()); - if tcx.sess.opts.output_types.contains_key(&OutputType::Mir) { - if let Err(error) = rustc_mir_transform::dump_mir::emit_mir(tcx) { - tcx.dcx().emit_fatal(errors::CantEmitMIR { error }); - } - } - // This must run after monomorphization so that all generic types // have been instantiated. if tcx.sess.opts.unstable_opts.print_type_sizes { diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index b44be1710ed..4592e014438 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -787,6 +787,7 @@ fn test_unstable_options_tracking_hash() { tracked!(direct_access_external_data, Some(true)); tracked!(dual_proc_macros, true); tracked!(dwarf_version, Some(5)); + tracked!(embed_metadata, false); tracked!(embed_source, true); tracked!(emit_thin_lto, false); tracked!(emscripten_wasm_eh, true); diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 5cccab893bb..83d80938b4e 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -18,7 +18,7 @@ use rustc_session::{EarlyDiagCtxt, Session, filesearch}; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::source_map::SourceMapInputs; -use rustc_span::{Symbol, sym}; +use rustc_span::{SessionGlobals, Symbol, sym}; use rustc_target::spec::Target; use tracing::info; @@ -188,25 +188,38 @@ pub(crate) fn run_in_thread_pool_with_globals<F: FnOnce(CurrentGcx) -> R + Send, // On deadlock, creates a new thread and forwards information in thread // locals to it. The new thread runs the deadlock handler. - // Get a `GlobalCtxt` reference from `CurrentGcx` as we cannot rely on having a - // `TyCtxt` TLS reference here. - let query_map = current_gcx2.access(|gcx| { - tls::enter_context(&tls::ImplicitCtxt::new(gcx), || { - tls::with(|tcx| QueryCtxt::new(tcx).collect_active_jobs()) - }) - }); - let query_map = FromDyn::from(query_map); + let current_gcx2 = current_gcx2.clone(); let registry = rayon_core::Registry::current(); + let session_globals = rustc_span::with_session_globals(|session_globals| { + session_globals as *const SessionGlobals as usize + }); thread::Builder::new() .name("rustc query cycle handler".to_string()) .spawn(move || { let on_panic = defer(|| { - eprintln!("query cycle handler thread panicked, aborting process"); + eprintln!("internal compiler error: query cycle handler thread panicked, aborting process"); // We need to abort here as we failed to resolve the deadlock, // otherwise the compiler could just hang, process::abort(); }); - break_query_cycles(query_map.into_inner(), ®istry); + + // Get a `GlobalCtxt` reference from `CurrentGcx` as we cannot rely on having a + // `TyCtxt` TLS reference here. + current_gcx2.access(|gcx| { + tls::enter_context(&tls::ImplicitCtxt::new(gcx), || { + tls::with(|tcx| { + // Accessing session globals is sound as they outlive `GlobalCtxt`. + // They are needed to hash query keys containing spans or symbols. + let query_map = rustc_span::set_session_globals_then(unsafe { &*(session_globals as *const SessionGlobals) }, || { + // Ensure there was no errors collecting all active jobs. + // We need the complete map to ensure we find a cycle to break. + QueryCtxt::new(tcx).collect_active_jobs().ok().expect("failed to collect active queries in deadlock handler") + }); + break_query_cycles(query_map, ®istry); + }) + }) + }); + on_panic.disable(); }) .unwrap(); |