about summary refs log tree commit diff
path: root/compiler/rustc_interface/src
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/rustc_interface/src')
-rw-r--r--compiler/rustc_interface/src/callbacks.rs4
-rw-r--r--compiler/rustc_interface/src/interface.rs547
-rw-r--r--compiler/rustc_interface/src/passes.rs64
-rw-r--r--compiler/rustc_interface/src/queries.rs8
-rw-r--r--compiler/rustc_interface/src/tests.rs33
-rw-r--r--compiler/rustc_interface/src/util.rs116
6 files changed, 317 insertions, 455 deletions
diff --git a/compiler/rustc_interface/src/callbacks.rs b/compiler/rustc_interface/src/callbacks.rs
index 6fa989bb96c..ef00ced67ff 100644
--- a/compiler/rustc_interface/src/callbacks.rs
+++ b/compiler/rustc_interface/src/callbacks.rs
@@ -33,9 +33,7 @@ fn track_diagnostic(diagnostic: &mut Diagnostic, f: &mut dyn FnMut(&mut Diagnost
     tls::with_context_opt(|icx| {
         if let Some(icx) = icx {
             if let Some(diagnostics) = icx.diagnostics {
-                let mut diagnostics = diagnostics.lock();
-                diagnostics.extend(Some(diagnostic.clone()));
-                std::mem::drop(diagnostics);
+                diagnostics.lock().extend(Some(diagnostic.clone()));
             }
 
             // Diagnostics are tracked, we can ignore the dependency.
diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs
index e703fe228c3..c4962707f69 100644
--- a/compiler/rustc_interface/src/interface.rs
+++ b/compiler/rustc_interface/src/interface.rs
@@ -18,12 +18,12 @@ use rustc_query_system::query::print_query_stack;
 use rustc_session::config::{
     self, Cfg, CheckCfg, ExpectedValues, Input, OutFileName, OutputFilenames,
 };
+use rustc_session::filesearch::sysroot_candidates;
 use rustc_session::parse::ParseSess;
-use rustc_session::CompilerIO;
-use rustc_session::Session;
-use rustc_session::{lint, EarlyErrorHandler};
-use rustc_span::source_map::{FileLoader, FileName};
+use rustc_session::{lint, CompilerIO, EarlyErrorHandler, Session};
+use rustc_span::source_map::FileLoader;
 use rustc_span::symbol::sym;
+use rustc_span::FileName;
 use std::path::PathBuf;
 use std::result;
 use std::sync::Arc;
@@ -64,296 +64,266 @@ impl Compiler {
 }
 
 /// Converts strings provided as `--cfg [cfgspec]` into a `Cfg`.
-pub fn parse_cfg(handler: &EarlyErrorHandler, cfgs: Vec<String>) -> Cfg<String> {
-    // This creates a short-lived `SessionGlobals`, containing an interner. The
-    // parsed values are converted from symbols to strings before exiting
-    // because the symbols are meaningless once the interner is gone.
-    rustc_span::create_default_session_if_not_set_then(move |_| {
-        cfgs.into_iter()
-            .map(|s| {
-                let sess = ParseSess::with_silent_emitter(Some(format!(
-                    "this error occurred on the command line: `--cfg={s}`"
-                )));
-                let filename = FileName::cfg_spec_source_code(&s);
-
-                macro_rules! error {
-                    ($reason: expr) => {
-                        handler.early_error(format!(
-                            concat!("invalid `--cfg` argument: `{}` (", $reason, ")"),
-                            s
-                        ));
-                    };
-                }
-
-                match maybe_new_parser_from_source_str(&sess, filename, s.to_string()) {
-                    Ok(mut parser) => match parser.parse_meta_item() {
-                        Ok(meta_item) if parser.token == token::Eof => {
-                            if meta_item.path.segments.len() != 1 {
-                                error!("argument key must be an identifier");
-                            }
-                            match &meta_item.kind {
-                                MetaItemKind::List(..) => {}
-                                MetaItemKind::NameValue(lit) if !lit.kind.is_str() => {
-                                    error!("argument value must be a string");
-                                }
-                                MetaItemKind::NameValue(..) | MetaItemKind::Word => {
-                                    let ident = meta_item.ident().expect("multi-segment cfg key");
-                                    return (
-                                        ident.name.to_string(),
-                                        meta_item.value_str().map(|sym| sym.to_string()),
-                                    );
-                                }
-                            }
-                        }
-                        Ok(..) => {}
-                        Err(err) => err.cancel(),
-                    },
-                    Err(errs) => drop(errs),
-                }
-
-                // If the user tried to use a key="value" flag, but is missing the quotes, provide
-                // a hint about how to resolve this.
-                if s.contains('=') && !s.contains("=\"") && !s.ends_with('"') {
-                    error!(concat!(
-                        r#"expected `key` or `key="value"`, ensure escaping is appropriate"#,
-                        r#" for your shell, try 'key="value"' or key=\"value\""#
-                    ));
-                } else {
-                    error!(r#"expected `key` or `key="value"`"#);
-                }
-            })
-            .collect::<Cfg<String>>()
-    })
-}
-
-/// Converts strings provided as `--check-cfg [specs]` into a `CheckCfg`.
-pub fn parse_check_cfg(handler: &EarlyErrorHandler, specs: Vec<String>) -> CheckCfg<String> {
-    // The comment about `SessionGlobals` and symbols in `parse_cfg` above
-    // applies here too.
-    rustc_span::create_default_session_if_not_set_then(move |_| {
-        // If any --check-cfg is passed then exhaustive_values and exhaustive_names
-        // are enabled by default.
-        let exhaustive_names = !specs.is_empty();
-        let exhaustive_values = !specs.is_empty();
-        let mut check_cfg = CheckCfg { exhaustive_names, exhaustive_values, ..CheckCfg::default() };
-
-        let mut old_syntax = None;
-        for s in specs {
+pub(crate) fn parse_cfg(handler: &EarlyErrorHandler, cfgs: Vec<String>) -> Cfg {
+    cfgs.into_iter()
+        .map(|s| {
             let sess = ParseSess::with_silent_emitter(Some(format!(
-                "this error occurred on the command line: `--check-cfg={s}`"
+                "this error occurred on the command line: `--cfg={s}`"
             )));
             let filename = FileName::cfg_spec_source_code(&s);
 
             macro_rules! error {
-                ($reason:expr) => {
+                ($reason: expr) => {
                     handler.early_error(format!(
-                        concat!("invalid `--check-cfg` argument: `{}` (", $reason, ")"),
+                        concat!("invalid `--cfg` argument: `{}` (", $reason, ")"),
                         s
-                    ))
+                    ));
                 };
             }
 
-            let expected_error = || -> ! {
-                error!("expected `cfg(name, values(\"value1\", \"value2\", ... \"valueN\"))`")
-            };
+            match maybe_new_parser_from_source_str(&sess, filename, s.to_string()) {
+                Ok(mut parser) => match parser.parse_meta_item() {
+                    Ok(meta_item) if parser.token == token::Eof => {
+                        if meta_item.path.segments.len() != 1 {
+                            error!("argument key must be an identifier");
+                        }
+                        match &meta_item.kind {
+                            MetaItemKind::List(..) => {}
+                            MetaItemKind::NameValue(lit) if !lit.kind.is_str() => {
+                                error!("argument value must be a string");
+                            }
+                            MetaItemKind::NameValue(..) | MetaItemKind::Word => {
+                                let ident = meta_item.ident().expect("multi-segment cfg key");
+                                return (ident.name, meta_item.value_str());
+                            }
+                        }
+                    }
+                    Ok(..) => {}
+                    Err(err) => err.cancel(),
+                },
+                Err(errs) => drop(errs),
+            }
 
-            let Ok(mut parser) = maybe_new_parser_from_source_str(&sess, filename, s.to_string())
-            else {
-                expected_error();
-            };
+            // If the user tried to use a key="value" flag, but is missing the quotes, provide
+            // a hint about how to resolve this.
+            if s.contains('=') && !s.contains("=\"") && !s.ends_with('"') {
+                error!(concat!(
+                    r#"expected `key` or `key="value"`, ensure escaping is appropriate"#,
+                    r#" for your shell, try 'key="value"' or key=\"value\""#
+                ));
+            } else {
+                error!(r#"expected `key` or `key="value"`"#);
+            }
+        })
+        .collect::<Cfg>()
+}
 
-            let meta_item = match parser.parse_meta_item() {
-                Ok(meta_item) if parser.token == token::Eof => meta_item,
-                Ok(..) => expected_error(),
-                Err(err) => {
-                    err.cancel();
-                    expected_error();
-                }
+/// Converts strings provided as `--check-cfg [specs]` into a `CheckCfg`.
+pub(crate) fn parse_check_cfg(handler: &EarlyErrorHandler, specs: Vec<String>) -> CheckCfg {
+    // If any --check-cfg is passed then exhaustive_values and exhaustive_names
+    // are enabled by default.
+    let exhaustive_names = !specs.is_empty();
+    let exhaustive_values = !specs.is_empty();
+    let mut check_cfg = CheckCfg { exhaustive_names, exhaustive_values, ..CheckCfg::default() };
+
+    let mut old_syntax = None;
+    for s in specs {
+        let sess = ParseSess::with_silent_emitter(Some(format!(
+            "this error occurred on the command line: `--check-cfg={s}`"
+        )));
+        let filename = FileName::cfg_spec_source_code(&s);
+
+        macro_rules! error {
+            ($reason:expr) => {
+                handler.early_error(format!(
+                    concat!("invalid `--check-cfg` argument: `{}` (", $reason, ")"),
+                    s
+                ))
             };
+        }
+
+        let expected_error = || -> ! {
+            error!("expected `cfg(name, values(\"value1\", \"value2\", ... \"valueN\"))`")
+        };
+
+        let Ok(mut parser) = maybe_new_parser_from_source_str(&sess, filename, s.to_string())
+        else {
+            expected_error();
+        };
 
-            let Some(args) = meta_item.meta_item_list() else {
+        let meta_item = match parser.parse_meta_item() {
+            Ok(meta_item) if parser.token == token::Eof => meta_item,
+            Ok(..) => expected_error(),
+            Err(err) => {
+                err.cancel();
                 expected_error();
-            };
+            }
+        };
 
-            if meta_item.has_name(sym::names) {
-                // defaults are flipped for the old syntax
-                if old_syntax == None {
-                    check_cfg.exhaustive_names = false;
-                    check_cfg.exhaustive_values = false;
-                }
-                old_syntax = Some(true);
-
-                check_cfg.exhaustive_names = true;
-                for arg in args {
-                    if arg.is_word() && arg.ident().is_some() {
-                        let ident = arg.ident().expect("multi-segment cfg key");
-                        check_cfg
-                            .expecteds
-                            .entry(ident.name.to_string())
-                            .or_insert(ExpectedValues::Any);
-                    } else {
-                        error!("`names()` arguments must be simple identifiers");
-                    }
-                }
-            } else if meta_item.has_name(sym::values) {
-                // defaults are flipped for the old syntax
-                if old_syntax == None {
-                    check_cfg.exhaustive_names = false;
-                    check_cfg.exhaustive_values = false;
+        let Some(args) = meta_item.meta_item_list() else {
+            expected_error();
+        };
+
+        let mut set_old_syntax = || {
+            // defaults are flipped for the old syntax
+            if old_syntax == None {
+                check_cfg.exhaustive_names = false;
+                check_cfg.exhaustive_values = false;
+            }
+            old_syntax = Some(true);
+        };
+
+        if meta_item.has_name(sym::names) {
+            set_old_syntax();
+
+            check_cfg.exhaustive_names = true;
+            for arg in args {
+                if arg.is_word() && let Some(ident) = arg.ident() {
+                    check_cfg.expecteds.entry(ident.name).or_insert(ExpectedValues::Any);
+                } else {
+                    error!("`names()` arguments must be simple identifiers");
                 }
-                old_syntax = Some(true);
-
-                if let Some((name, values)) = args.split_first() {
-                    if name.is_word() && name.ident().is_some() {
-                        let ident = name.ident().expect("multi-segment cfg key");
-                        let expected_values = check_cfg
-                            .expecteds
-                            .entry(ident.name.to_string())
-                            .and_modify(|expected_values| match expected_values {
-                                ExpectedValues::Some(_) => {}
-                                ExpectedValues::Any => {
-                                    // handle the case where names(...) was done
-                                    // before values by changing to a list
-                                    *expected_values = ExpectedValues::Some(FxHashSet::default());
-                                }
-                            })
-                            .or_insert_with(|| ExpectedValues::Some(FxHashSet::default()));
-
-                        let ExpectedValues::Some(expected_values) = expected_values else {
-                            bug!("`expected_values` should be a list a values")
-                        };
-
-                        for val in values {
-                            if let Some(LitKind::Str(s, _)) = val.lit().map(|lit| &lit.kind) {
-                                expected_values.insert(Some(s.to_string()));
-                            } else {
-                                error!("`values()` arguments must be string literals");
+            }
+        } else if meta_item.has_name(sym::values) {
+            set_old_syntax();
+
+            if let Some((name, values)) = args.split_first() {
+                if name.is_word() && let Some(ident) = name.ident() {
+                    let expected_values = check_cfg
+                        .expecteds
+                        .entry(ident.name)
+                        .and_modify(|expected_values| match expected_values {
+                            ExpectedValues::Some(_) => {}
+                            ExpectedValues::Any => {
+                                // handle the case where names(...) was done
+                                // before values by changing to a list
+                                *expected_values = ExpectedValues::Some(FxHashSet::default());
                             }
-                        }
+                        })
+                        .or_insert_with(|| ExpectedValues::Some(FxHashSet::default()));
 
-                        if values.is_empty() {
-                            expected_values.insert(None);
+                    let ExpectedValues::Some(expected_values) = expected_values else {
+                        bug!("`expected_values` should be a list a values")
+                    };
+
+                    for val in values {
+                        if let Some(LitKind::Str(s, _)) = val.lit().map(|lit| &lit.kind) {
+                            expected_values.insert(Some(*s));
+                        } else {
+                            error!("`values()` arguments must be string literals");
                         }
-                    } else {
-                        error!("`values()` first argument must be a simple identifier");
                     }
-                } else if args.is_empty() {
-                    check_cfg.exhaustive_values = true;
+
+                    if values.is_empty() {
+                        expected_values.insert(None);
+                    }
                 } else {
-                    expected_error();
+                    error!("`values()` first argument must be a simple identifier");
                 }
-            } else if meta_item.has_name(sym::cfg) {
-                old_syntax = Some(false);
+            } else if args.is_empty() {
+                check_cfg.exhaustive_values = true;
+            } else {
+                expected_error();
+            }
+        } else if meta_item.has_name(sym::cfg) {
+            old_syntax = Some(false);
 
-                let mut names = Vec::new();
-                let mut values: FxHashSet<_> = Default::default();
+            let mut names = Vec::new();
+            let mut values: FxHashSet<_> = Default::default();
 
-                let mut any_specified = false;
-                let mut values_specified = false;
-                let mut values_any_specified = false;
+            let mut any_specified = false;
+            let mut values_specified = false;
+            let mut values_any_specified = false;
 
-                for arg in args {
-                    if arg.is_word() && let Some(ident) = arg.ident() {
-                        if values_specified {
-                            error!("`cfg()` names cannot be after values");
-                        }
-                        names.push(ident);
-                    } else if arg.has_name(sym::any)
-                        && let Some(args) = arg.meta_item_list()
-                    {
-                        if any_specified {
-                            error!("`any()` cannot be specified multiple times");
-                        }
-                        any_specified = true;
-                        if !args.is_empty() {
-                            error!("`any()` must be empty");
-                        }
-                    } else if arg.has_name(sym::values)
-                        && let Some(args) = arg.meta_item_list()
-                    {
-                        if names.is_empty() {
-                            error!("`values()` cannot be specified before the names");
-                        } else if values_specified {
-                            error!("`values()` cannot be specified multiple times");
-                        }
-                        values_specified = true;
-
-                        for arg in args {
-                            if let Some(LitKind::Str(s, _)) =
-                                arg.lit().map(|lit| &lit.kind)
-                            {
-                                values.insert(Some(s.to_string()));
-                            } else if arg.has_name(sym::any)
-                                && let Some(args) = arg.meta_item_list()
-                            {
-                                if values_any_specified {
-                                    error!(
-                                        "`any()` in `values()` cannot be specified multiple times"
-                                    );
-                                }
-                                values_any_specified = true;
-                                if !args.is_empty() {
-                                    error!("`any()` must be empty");
-                                }
-                            } else {
-                                error!(
-                                    "`values()` arguments must be string literals or `any()`"
-                                );
+            for arg in args {
+                if arg.is_word() && let Some(ident) = arg.ident() {
+                    if values_specified {
+                        error!("`cfg()` names cannot be after values");
+                    }
+                    names.push(ident);
+                } else if arg.has_name(sym::any) && let Some(args) = arg.meta_item_list() {
+                    if any_specified {
+                        error!("`any()` cannot be specified multiple times");
+                    }
+                    any_specified = true;
+                    if !args.is_empty() {
+                        error!("`any()` must be empty");
+                    }
+                } else if arg.has_name(sym::values) && let Some(args) = arg.meta_item_list() {
+                    if names.is_empty() {
+                        error!("`values()` cannot be specified before the names");
+                    } else if values_specified {
+                        error!("`values()` cannot be specified multiple times");
+                    }
+                    values_specified = true;
+
+                    for arg in args {
+                        if let Some(LitKind::Str(s, _)) = arg.lit().map(|lit| &lit.kind) {
+                            values.insert(Some(*s));
+                        } else if arg.has_name(sym::any) && let Some(args) = arg.meta_item_list() {
+                            if values_any_specified {
+                                error!("`any()` in `values()` cannot be specified multiple times");
+                            }
+                            values_any_specified = true;
+                            if !args.is_empty() {
+                                error!("`any()` must be empty");
                             }
+                        } else {
+                            error!("`values()` arguments must be string literals or `any()`");
                         }
-                    } else {
-                        error!(
-                            "`cfg()` arguments must be simple identifiers, `any()` or `values(...)`"
-                        );
                     }
-                }
-
-                if values.is_empty() && !values_any_specified && !any_specified {
-                    values.insert(None);
-                } else if !values.is_empty() && values_any_specified {
+                } else {
                     error!(
-                        "`values()` arguments cannot specify string literals and `any()` at the same time"
+                        "`cfg()` arguments must be simple identifiers, `any()` or `values(...)`"
                     );
                 }
+            }
 
-                if any_specified {
-                    if names.is_empty()
-                        && values.is_empty()
-                        && !values_specified
-                        && !values_any_specified
-                    {
-                        check_cfg.exhaustive_names = false;
-                    } else {
-                        error!("`cfg(any())` can only be provided in isolation");
-                    }
+            if values.is_empty() && !values_any_specified && !any_specified {
+                values.insert(None);
+            } else if !values.is_empty() && values_any_specified {
+                error!(
+                    "`values()` arguments cannot specify string literals and `any()` at the same time"
+                );
+            }
+
+            if any_specified {
+                if names.is_empty()
+                    && values.is_empty()
+                    && !values_specified
+                    && !values_any_specified
+                {
+                    check_cfg.exhaustive_names = false;
                 } else {
-                    for name in names {
-                        check_cfg
-                            .expecteds
-                            .entry(name.to_string())
-                            .and_modify(|v| match v {
-                                ExpectedValues::Some(v) if !values_any_specified => {
-                                    v.extend(values.clone())
-                                }
-                                ExpectedValues::Some(_) => *v = ExpectedValues::Any,
-                                ExpectedValues::Any => {}
-                            })
-                            .or_insert_with(|| {
-                                if values_any_specified {
-                                    ExpectedValues::Any
-                                } else {
-                                    ExpectedValues::Some(values.clone())
-                                }
-                            });
-                    }
+                    error!("`cfg(any())` can only be provided in isolation");
                 }
             } else {
-                expected_error();
+                for name in names {
+                    check_cfg
+                        .expecteds
+                        .entry(name.name)
+                        .and_modify(|v| match v {
+                            ExpectedValues::Some(v) if !values_any_specified => {
+                                v.extend(values.clone())
+                            }
+                            ExpectedValues::Some(_) => *v = ExpectedValues::Any,
+                            ExpectedValues::Any => {}
+                        })
+                        .or_insert_with(|| {
+                            if values_any_specified {
+                                ExpectedValues::Any
+                            } else {
+                                ExpectedValues::Some(values.clone())
+                            }
+                        });
+                }
             }
+        } else {
+            expected_error();
         }
+    }
 
-        check_cfg
-    })
+    check_cfg
 }
 
 /// The compiler configuration
@@ -361,9 +331,9 @@ pub struct Config {
     /// Command line options
     pub opts: config::Options,
 
-    /// cfg! configuration in addition to the default ones
-    pub crate_cfg: Cfg<String>,
-    pub crate_check_cfg: CheckCfg<String>,
+    /// Unparsed cfg! configuration in addition to the default ones.
+    pub crate_cfg: Vec<String>,
+    pub crate_check_cfg: Vec<String>,
 
     pub input: Input,
     pub output_dir: Option<PathBuf>,
@@ -384,7 +354,7 @@ pub struct Config {
     pub hash_untracked_state: Option<Box<dyn FnOnce(&Session, &mut StableHasher) + Send>>,
 
     /// This is a callback from the driver that is called when we're registering lints;
-    /// it is called during plugin registration when we have the LintStore in a non-shared state.
+    /// it is called during lint loading when we have the LintStore in a non-shared state.
     ///
     /// Note that if you find a Some here you probably want to call that function in the new
     /// function being registered.
@@ -428,32 +398,71 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se
         || {
             crate::callbacks::setup_callbacks();
 
-            let registry = &config.registry;
-
             let handler = EarlyErrorHandler::new(config.opts.error_format);
 
+            let codegen_backend = if let Some(make_codegen_backend) = config.make_codegen_backend {
+                make_codegen_backend(&config.opts)
+            } else {
+                util::get_codegen_backend(
+                    &handler,
+                    &config.opts.maybe_sysroot,
+                    config.opts.unstable_opts.codegen_backend.as_deref(),
+                )
+            };
+
             let temps_dir = config.opts.unstable_opts.temps_dir.as_deref().map(PathBuf::from);
-            let (mut sess, codegen_backend) = util::create_session(
+
+            let bundle = match rustc_errors::fluent_bundle(
+                config.opts.maybe_sysroot.clone(),
+                sysroot_candidates().to_vec(),
+                config.opts.unstable_opts.translate_lang.clone(),
+                config.opts.unstable_opts.translate_additional_ftl.as_deref(),
+                config.opts.unstable_opts.translate_directionality_markers,
+            ) {
+                Ok(bundle) => bundle,
+                Err(e) => {
+                    handler.early_error(format!("failed to load fluent bundle: {e}"));
+                }
+            };
+
+            let mut locale_resources = Vec::from(config.locale_resources);
+            locale_resources.push(codegen_backend.locale_resource());
+
+            // target_override is documented to be called before init(), so this is okay
+            let target_override = codegen_backend.target_override(&config.opts);
+
+            let mut sess = rustc_session::build_session(
                 &handler,
                 config.opts,
-                config.crate_cfg,
-                config.crate_check_cfg,
-                config.locale_resources,
-                config.file_loader,
                 CompilerIO {
                     input: config.input,
                     output_dir: config.output_dir,
                     output_file: config.output_file,
                     temps_dir,
                 },
+                bundle,
+                config.registry.clone(),
+                locale_resources,
                 config.lint_caps,
-                config.make_codegen_backend,
-                registry.clone(),
+                config.file_loader,
+                target_override,
+                util::rustc_version_str().unwrap_or("unknown"),
                 config.ice_file,
                 config.using_internal_features,
                 config.expanded_args,
             );
 
+            codegen_backend.init(&sess);
+
+            let cfg = parse_cfg(&handler, config.crate_cfg);
+            let mut cfg = config::build_configuration(&sess, cfg);
+            util::add_configuration(&mut cfg, &mut sess, &*codegen_backend);
+            sess.parse_sess.config = cfg;
+
+            let mut check_cfg = parse_check_cfg(&handler, config.crate_check_cfg);
+            check_cfg.fill_well_known(&sess.target);
+            sess.parse_sess.check_config = check_cfg;
+
             if let Some(parse_sess_created) = config.parse_sess_created {
                 parse_sess_created(&mut sess.parse_sess);
             }
@@ -474,7 +483,7 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se
             rustc_span::set_source_map(compiler.sess.parse_sess.clone_source_map(), move || {
                 let r = {
                     let _sess_abort_error = defer(|| {
-                        compiler.sess.finish_diagnostics(registry);
+                        compiler.sess.finish_diagnostics(&config.registry);
                     });
 
                     f(&compiler)
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index 884afae23d8..7d14d088e59 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -23,11 +23,10 @@ use rustc_middle::util::Providers;
 use rustc_mir_build as mir_build;
 use rustc_parse::{parse_crate_from_file, parse_crate_from_source_str, validate_attr};
 use rustc_passes::{self, abi_test, hir_stats, layout_test};
-use rustc_plugin_impl as plugin;
 use rustc_resolve::Resolver;
 use rustc_session::code_stats::VTableSizeInfo;
 use rustc_session::config::{CrateType, Input, OutFileName, OutputFilenames, OutputType};
-use rustc_session::cstore::{MetadataLoader, Untracked};
+use rustc_session::cstore::Untracked;
 use rustc_session::output::filename_for_input;
 use rustc_session::search_paths::PathKind;
 use rustc_session::{Limit, Session};
@@ -75,25 +74,12 @@ fn count_nodes(krate: &ast::Crate) -> usize {
 
 pub(crate) fn create_lint_store(
     sess: &Session,
-    metadata_loader: &dyn MetadataLoader,
     register_lints: Option<impl Fn(&Session, &mut LintStore)>,
-    pre_configured_attrs: &[ast::Attribute],
 ) -> LintStore {
     let mut lint_store = rustc_lint::new_lint_store(sess.enable_internal_lints());
     if let Some(register_lints) = register_lints {
         register_lints(sess, &mut lint_store);
     }
-
-    let registrars = sess.time("plugin_loading", || {
-        plugin::load::load_plugins(sess, metadata_loader, pre_configured_attrs)
-    });
-    sess.time("plugin_registration", || {
-        let mut registry = plugin::Registry { lint_store: &mut lint_store };
-        for registrar in registrars {
-            registrar(&mut registry);
-        }
-    });
-
     lint_store
 }
 
@@ -392,34 +378,16 @@ fn generated_output_paths(
     out_filenames
 }
 
-// Runs `f` on every output file path and returns the first non-None result, or None if `f`
-// returns None for every file path.
-fn check_output<F, T>(output_paths: &[PathBuf], f: F) -> Option<T>
-where
-    F: Fn(&PathBuf) -> Option<T>,
-{
-    for output_path in output_paths {
-        if let Some(result) = f(output_path) {
-            return Some(result);
-        }
-    }
-    None
-}
-
 fn output_contains_path(output_paths: &[PathBuf], input_path: &Path) -> bool {
     let input_path = try_canonicalize(input_path).ok();
     if input_path.is_none() {
         return false;
     }
-    let check = |output_path: &PathBuf| {
-        if try_canonicalize(output_path).ok() == input_path { Some(()) } else { None }
-    };
-    check_output(output_paths, check).is_some()
+    output_paths.iter().any(|output_path| try_canonicalize(output_path).ok() == input_path)
 }
 
-fn output_conflicts_with_dir(output_paths: &[PathBuf]) -> Option<PathBuf> {
-    let check = |output_path: &PathBuf| output_path.is_dir().then(|| output_path.clone());
-    check_output(output_paths, check)
+fn output_conflicts_with_dir(output_paths: &[PathBuf]) -> Option<&PathBuf> {
+    output_paths.iter().find(|output_path| output_path.is_dir())
 }
 
 fn escape_dep_filename(filename: &str) -> String {
@@ -602,9 +570,7 @@ fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
     let (_, krate) = &*tcx.resolver_for_lowering(()).borrow();
     let crate_name = tcx.crate_name(LOCAL_CRATE);
 
-    // FIXME: rustdoc passes &[] instead of &krate.attrs here
     let outputs = util::build_output_filenames(&krate.attrs, sess);
-
     let output_paths =
         generated_output_paths(tcx, &outputs, sess.io.output_file.is_some(), crate_name);
 
@@ -882,16 +848,18 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) -> Result<()> {
 
             let trait_ref = ty::Binder::dummy(ty::TraitRef::identity(tcx, tr));
 
-            // A slightly edited version of the code in `rustc_trait_selection::traits::vtable::vtable_entries`,
-            // that works without self type and just counts number of entries.
+            // A slightly edited version of the code in
+            // `rustc_trait_selection::traits::vtable::vtable_entries`, that works without self
+            // type and just counts number of entries.
             //
-            // Note that this is technically wrong, for traits which have associated types in supertraits:
+            // Note that this is technically wrong, for traits which have associated types in
+            // supertraits:
             //
             //   trait A: AsRef<Self::T> + AsRef<()> { type T; }
             //
-            // Without self type we can't normalize `Self::T`, so we can't know if `AsRef<Self::T>` and
-            // `AsRef<()>` are the same trait, thus we assume that those are different, and potentially
-            // over-estimate how many vtable entries there are.
+            // Without self type we can't normalize `Self::T`, so we can't know if `AsRef<Self::T>`
+            // and `AsRef<()>` are the same trait, thus we assume that those are different, and
+            // potentially over-estimate how many vtable entries there are.
             //
             // Similarly this is wrong for traits that have methods with possibly-impossible bounds.
             // For example:
@@ -918,10 +886,10 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) -> Result<()> {
                         let own_existential_entries =
                             tcx.own_existential_vtable_entries(trait_ref.def_id());
 
-                        // The original code here ignores the method if its predicates are impossible.
-                        // We can't really do that as, for example, all not trivial bounds on generic
-                        // parameters are impossible (since we don't know the parameters...),
-                        // see the comment above.
+                        // The original code here ignores the method if its predicates are
+                        // impossible. We can't really do that as, for example, all not trivial
+                        // bounds on generic parameters are impossible (since we don't know the
+                        // parameters...), see the comment above.
                         entries_ignoring_upcasting += own_existential_entries.len();
 
                         if emit_vptr {
diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index 4fb295da640..3a5f788e8dd 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -148,12 +148,8 @@ impl<'tcx> Queries<'tcx> {
             );
             let dep_graph = setup_dep_graph(sess, crate_name, stable_crate_id)?;
 
-            let lint_store = Lrc::new(passes::create_lint_store(
-                sess,
-                &*self.codegen_backend().metadata_loader(),
-                self.compiler.register_lints.as_deref(),
-                &pre_configured_attrs,
-            ));
+            let lint_store =
+                Lrc::new(passes::create_lint_store(sess, self.compiler.register_lints.as_deref()));
             let cstore = FreezeLock::new(Box::new(CStore::new(
                 self.codegen_backend().metadata_loader(),
                 stable_crate_id,
diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
index 57ca709267a..8e66083a390 100644
--- a/compiler/rustc_interface/src/tests.rs
+++ b/compiler/rustc_interface/src/tests.rs
@@ -2,32 +2,21 @@
 use crate::interface::parse_cfg;
 use rustc_data_structures::profiling::TimePassesFormat;
 use rustc_errors::{emitter::HumanReadableErrorType, registry, ColorConfig};
-use rustc_session::config::rustc_optgroups;
-use rustc_session::config::Cfg;
-use rustc_session::config::DebugInfo;
-use rustc_session::config::Input;
-use rustc_session::config::InstrumentXRay;
-use rustc_session::config::LinkSelfContained;
-use rustc_session::config::Polonius;
-use rustc_session::config::TraitSolver;
-use rustc_session::config::{build_configuration, build_session_options};
 use rustc_session::config::{
-    BranchProtection, Externs, OomStrategy, OutFileName, OutputType, OutputTypes, PAuthKey, PacRet,
-    ProcMacroExecutionStrategy, SymbolManglingVersion, WasiExecModel,
+    build_configuration, build_session_options, rustc_optgroups, BranchProtection, CFGuard, Cfg,
+    DebugInfo, DumpMonoStatsFormat, ErrorOutputType, ExternEntry, ExternLocation, Externs, Input,
+    InstrumentCoverage, InstrumentXRay, LinkSelfContained, LinkerPluginLto, LocationDetail, LtoCli,
+    MirSpanview, OomStrategy, Options, OutFileName, OutputType, OutputTypes, PAuthKey, PacRet,
+    Passes, Polonius, ProcMacroExecutionStrategy, Strip, SwitchWithOptPath, SymbolManglingVersion,
+    TraitSolver, WasiExecModel,
 };
-use rustc_session::config::{CFGuard, ExternEntry, LinkerPluginLto, LtoCli, SwitchWithOptPath};
-use rustc_session::config::{DumpMonoStatsFormat, MirSpanview};
-use rustc_session::config::{ErrorOutputType, ExternLocation, LocationDetail, Options, Strip};
-use rustc_session::config::{InstrumentCoverage, Passes};
 use rustc_session::lint::Level;
 use rustc_session::search_paths::SearchPath;
 use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind};
-use rustc_session::{build_session, getopts, Session};
-use rustc_session::{CompilerIO, EarlyErrorHandler};
+use rustc_session::{build_session, getopts, CompilerIO, EarlyErrorHandler, Session};
 use rustc_span::edition::{Edition, DEFAULT_EDITION};
 use rustc_span::symbol::sym;
-use rustc_span::FileName;
-use rustc_span::SourceFileHashAlgorithm;
+use rustc_span::{FileName, SourceFileHashAlgorithm};
 use rustc_target::spec::{CodeModel, LinkerFlavorCli, MergeFunctions, PanicStrategy, RelocModel};
 use rustc_target::spec::{RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TlsModel};
 use std::collections::{BTreeMap, BTreeSet};
@@ -35,10 +24,7 @@ use std::num::NonZeroUsize;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
 
-fn mk_session(
-    handler: &mut EarlyErrorHandler,
-    matches: getopts::Matches,
-) -> (Session, Cfg<String>) {
+fn mk_session(handler: &mut EarlyErrorHandler, matches: getopts::Matches) -> (Session, Cfg) {
     let registry = registry::Registry::new(&[]);
     let sessopts = build_session_options(handler, &matches);
     let cfg = parse_cfg(handler, matches.opt_strs("cfg"));
@@ -831,7 +817,6 @@ fn test_unstable_options_tracking_hash() {
     tracked!(split_lto_unit, Some(true));
     tracked!(src_hash_algorithm, Some(SourceFileHashAlgorithm::Sha1));
     tracked!(stack_protector, StackProtector::All);
-    tracked!(symbol_mangling_version, Some(SymbolManglingVersion::V0));
     tracked!(teach, true);
     tracked!(thinlto, Some(true));
     tracked!(thir_unsafeck, true);
diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs
index 4d0be65697a..22d12793464 100644
--- a/compiler/rustc_interface/src/util.rs
+++ b/compiler/rustc_interface/src/util.rs
@@ -3,29 +3,24 @@ use info;
 use libloading::Library;
 use rustc_ast as ast;
 use rustc_codegen_ssa::traits::CodegenBackend;
-use rustc_data_structures::fx::FxHashMap;
 #[cfg(parallel_compiler)]
 use rustc_data_structures::sync;
-use rustc_errors::registry::Registry;
 use rustc_parse::validate_attr;
 use rustc_session as session;
-use rustc_session::config::{
-    self, Cfg, CheckCfg, CrateType, OutFileName, OutputFilenames, OutputTypes,
-};
+use rustc_session::config::{self, Cfg, CrateType, OutFileName, OutputFilenames, OutputTypes};
 use rustc_session::filesearch::sysroot_candidates;
 use rustc_session::lint::{self, BuiltinLintDiagnostics, LintBuffer};
 use rustc_session::{filesearch, output, Session};
 use rustc_span::edit_distance::find_best_match_for_name;
 use rustc_span::edition::Edition;
-use rustc_span::source_map::FileLoader;
 use rustc_span::symbol::{sym, Symbol};
-use session::{CompilerIO, EarlyErrorHandler};
+use session::EarlyErrorHandler;
 use std::env;
 use std::env::consts::{DLL_PREFIX, DLL_SUFFIX};
 use std::mem;
 use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::{Arc, OnceLock};
+use std::sync::OnceLock;
 use std::thread;
 
 /// Function pointer type that constructs a new CodegenBackend.
@@ -36,11 +31,7 @@ pub type MakeBackendFn = fn() -> Box<dyn CodegenBackend>;
 ///
 /// This is performed by checking whether a set of permitted features
 /// is available on the target machine, by querying the codegen backend.
-pub fn add_configuration(
-    cfg: &mut Cfg<Symbol>,
-    sess: &mut Session,
-    codegen_backend: &dyn CodegenBackend,
-) {
+pub fn add_configuration(cfg: &mut Cfg, sess: &mut Session, codegen_backend: &dyn CodegenBackend) {
     let tf = sym::target_feature;
 
     let unstable_target_features = codegen_backend.target_features(sess, true);
@@ -56,83 +47,6 @@ pub fn add_configuration(
     }
 }
 
-pub fn create_session(
-    handler: &EarlyErrorHandler,
-    sopts: config::Options,
-    cfg: Cfg<String>,
-    check_cfg: CheckCfg<String>,
-    locale_resources: &'static [&'static str],
-    file_loader: Option<Box<dyn FileLoader + Send + Sync + 'static>>,
-    io: CompilerIO,
-    lint_caps: FxHashMap<lint::LintId, lint::Level>,
-    make_codegen_backend: Option<
-        Box<dyn FnOnce(&config::Options) -> Box<dyn CodegenBackend> + Send>,
-    >,
-    descriptions: Registry,
-    ice_file: Option<PathBuf>,
-    using_internal_features: Arc<AtomicBool>,
-    expanded_args: Vec<String>,
-) -> (Session, Box<dyn CodegenBackend>) {
-    let codegen_backend = if let Some(make_codegen_backend) = make_codegen_backend {
-        make_codegen_backend(&sopts)
-    } else {
-        get_codegen_backend(
-            handler,
-            &sopts.maybe_sysroot,
-            sopts.unstable_opts.codegen_backend.as_deref(),
-        )
-    };
-
-    // target_override is documented to be called before init(), so this is okay
-    let target_override = codegen_backend.target_override(&sopts);
-
-    let bundle = match rustc_errors::fluent_bundle(
-        sopts.maybe_sysroot.clone(),
-        sysroot_candidates().to_vec(),
-        sopts.unstable_opts.translate_lang.clone(),
-        sopts.unstable_opts.translate_additional_ftl.as_deref(),
-        sopts.unstable_opts.translate_directionality_markers,
-    ) {
-        Ok(bundle) => bundle,
-        Err(e) => {
-            handler.early_error(format!("failed to load fluent bundle: {e}"));
-        }
-    };
-
-    let mut locale_resources = Vec::from(locale_resources);
-    locale_resources.push(codegen_backend.locale_resource());
-
-    let mut sess = session::build_session(
-        handler,
-        sopts,
-        io,
-        bundle,
-        descriptions,
-        locale_resources,
-        lint_caps,
-        file_loader,
-        target_override,
-        rustc_version_str().unwrap_or("unknown"),
-        ice_file,
-        using_internal_features,
-        expanded_args,
-    );
-
-    codegen_backend.init(&sess);
-
-    let mut cfg = config::build_configuration(&sess, cfg);
-    add_configuration(&mut cfg, &mut sess, &*codegen_backend);
-
-    let mut check_cfg = check_cfg.intern();
-    check_cfg.fill_well_known(&sess.target);
-
-    // These configs use symbols, rather than strings.
-    sess.parse_sess.config = cfg;
-    sess.parse_sess.check_config = check_cfg;
-
-    (sess, codegen_backend)
-}
-
 const STACK_SIZE: usize = 8 * 1024 * 1024;
 
 fn get_stack_size() -> Option<usize> {
@@ -487,21 +401,6 @@ fn categorize_crate_type(s: Symbol) -> Option<CrateType> {
 }
 
 pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<CrateType> {
-    // Unconditionally collect crate types from attributes to make them used
-    let attr_types: Vec<CrateType> = attrs
-        .iter()
-        .filter_map(|a| {
-            if a.has_name(sym::crate_type) {
-                match a.value_str() {
-                    Some(s) => categorize_crate_type(s),
-                    _ => None,
-                }
-            } else {
-                None
-            }
-        })
-        .collect();
-
     // If we're generating a test executable, then ignore all other output
     // styles at all other locations
     if session.opts.test {
@@ -515,6 +414,13 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<C
     #[allow(rustc::bad_opt_access)]
     let mut base = session.opts.crate_types.clone();
     if base.is_empty() {
+        let attr_types = attrs.iter().filter_map(|a| {
+            if a.has_name(sym::crate_type) && let Some(s) = a.value_str() {
+                categorize_crate_type(s)
+            } else {
+                None
+            }
+        });
         base.extend(attr_types);
         if base.is_empty() {
             base.push(output::default_output_for_target(session));