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-rw-r--r--src/bootstrap/builder.rs116
1 files changed, 70 insertions, 46 deletions
diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index d688f798956..dd45bd3a213 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -1,9 +1,9 @@
-use std::any::Any;
+use std::any::{type_name, Any};
 use std::cell::{Cell, RefCell};
 use std::collections::BTreeSet;
 use std::env;
 use std::ffi::OsStr;
-use std::fmt::Debug;
+use std::fmt::{Debug, Write};
 use std::fs;
 use std::hash::Hash;
 use std::ops::Deref;
@@ -12,9 +12,8 @@ use std::process::Command;
 use std::time::{Duration, Instant};
 
 use crate::cache::{Cache, Interned, INTERNER};
-use crate::check;
 use crate::compile;
-use crate::config::TargetSelection;
+use crate::config::{SplitDebuginfo, TargetSelection};
 use crate::dist;
 use crate::doc;
 use crate::flags::{Color, Subcommand};
@@ -25,6 +24,7 @@ use crate::test;
 use crate::tool::{self, SourceType};
 use crate::util::{self, add_dylib_path, add_link_lib_path, exe, libdir, output, t};
 use crate::EXTRA_CHECK_CFGS;
+use crate::{check, Config};
 use crate::{Build, CLang, DocTests, GitRepo, Mode};
 
 pub use crate::Compiler;
@@ -125,7 +125,8 @@ impl TaskPath {
                     if found_kind.is_empty() {
                         panic!("empty kind in task path {}", path.display());
                     }
-                    kind = Some(Kind::parse(found_kind));
+                    kind = Kind::parse(found_kind);
+                    assert!(kind.is_some());
                     path = Path::new(found_prefix).join(components.as_path());
                 }
             }
@@ -388,11 +389,13 @@ impl<'a> ShouldRun<'a> {
             paths
                 .iter()
                 .map(|p| {
-                    assert!(
-                        self.builder.src.join(p).exists(),
-                        "`should_run.paths` should correspond to real on-disk paths - use `alias` if there is no relevant path: {}",
-                        p
-                    );
+                    // FIXME(#96188): make sure this is actually a path.
+                    // This currently breaks for paths within submodules.
+                    //assert!(
+                    //    self.builder.src.join(p).exists(),
+                    //    "`should_run.paths` should correspond to real on-disk paths - use `alias` if there is no relevant path: {}",
+                    //    p
+                    //);
                     TaskPath { path: p.into(), kind: Some(self.kind) }
                 })
                 .collect(),
@@ -429,43 +432,53 @@ pub enum Kind {
     Check,
     Clippy,
     Fix,
+    Format,
     Test,
     Bench,
-    Dist,
     Doc,
+    Clean,
+    Dist,
     Install,
     Run,
+    Setup,
 }
 
 impl Kind {
-    fn parse(string: &str) -> Kind {
-        match string {
-            "build" => Kind::Build,
-            "check" => Kind::Check,
+    pub fn parse(string: &str) -> Option<Kind> {
+        // these strings, including the one-letter aliases, must match the x.py help text
+        Some(match string {
+            "build" | "b" => Kind::Build,
+            "check" | "c" => Kind::Check,
             "clippy" => Kind::Clippy,
             "fix" => Kind::Fix,
-            "test" => Kind::Test,
+            "fmt" => Kind::Format,
+            "test" | "t" => Kind::Test,
             "bench" => Kind::Bench,
+            "doc" | "d" => Kind::Doc,
+            "clean" => Kind::Clean,
             "dist" => Kind::Dist,
-            "doc" => Kind::Doc,
             "install" => Kind::Install,
-            "run" => Kind::Run,
-            other => panic!("unknown kind: {}", other),
-        }
+            "run" | "r" => Kind::Run,
+            "setup" => Kind::Setup,
+            _ => return None,
+        })
     }
 
-    fn as_str(&self) -> &'static str {
+    pub fn as_str(&self) -> &'static str {
         match self {
             Kind::Build => "build",
             Kind::Check => "check",
             Kind::Clippy => "clippy",
             Kind::Fix => "fix",
+            Kind::Format => "fmt",
             Kind::Test => "test",
             Kind::Bench => "bench",
-            Kind::Dist => "dist",
             Kind::Doc => "doc",
+            Kind::Clean => "clean",
+            Kind::Dist => "dist",
             Kind::Install => "install",
             Kind::Run => "run",
+            Kind::Setup => "setup",
         }
     }
 }
@@ -509,7 +522,7 @@ impl<'a> Builder<'a> {
                 native::Lld,
                 native::CrtBeginEnd
             ),
-            Kind::Check | Kind::Clippy { .. } | Kind::Fix => describe!(
+            Kind::Check => describe!(
                 check::Std,
                 check::Rustc,
                 check::Rustdoc,
@@ -639,32 +652,29 @@ impl<'a> Builder<'a> {
                 install::Rustc
             ),
             Kind::Run => describe!(run::ExpandYamlAnchors, run::BuildManifest, run::BumpStage0),
+            // These commands either don't use paths, or they're special-cased in Build::build()
+            Kind::Clean | Kind::Clippy | Kind::Fix | Kind::Format | Kind::Setup => vec![],
         }
     }
 
-    pub fn get_help(build: &Build, subcommand: &str) -> Option<String> {
-        let kind = match subcommand {
-            "build" | "b" => Kind::Build,
-            "doc" | "d" => Kind::Doc,
-            "test" | "t" => Kind::Test,
-            "bench" => Kind::Bench,
-            "dist" => Kind::Dist,
-            "install" => Kind::Install,
-            _ => return None,
-        };
+    pub fn get_help(build: &Build, kind: Kind) -> Option<String> {
+        let step_descriptions = Builder::get_step_descriptions(kind);
+        if step_descriptions.is_empty() {
+            return None;
+        }
 
         let builder = Self::new_internal(build, kind, vec![]);
         let builder = &builder;
         // The "build" kind here is just a placeholder, it will be replaced with something else in
         // the following statement.
         let mut should_run = ShouldRun::new(builder, Kind::Build);
-        for desc in Builder::get_step_descriptions(builder.kind) {
+        for desc in step_descriptions {
             should_run.kind = desc.kind;
             should_run = (desc.should_run)(should_run);
         }
         let mut help = String::from("Available paths:\n");
         let mut add_path = |path: &Path| {
-            help.push_str(&format!("    ./x.py {} {}\n", subcommand, path.display()));
+            t!(write!(help, "    ./x.py {} {}\n", kind.as_str(), path.display()));
         };
         for pathset in should_run.paths {
             match pathset {
@@ -950,6 +960,11 @@ impl<'a> Builder<'a> {
         None
     }
 
+    /// Convenience wrapper to allow `builder.llvm_link_shared()` instead of `builder.config.llvm_link_shared(&builder)`.
+    pub(crate) fn llvm_link_shared(&self) -> bool {
+        Config::llvm_link_shared(self)
+    }
+
     /// Prepares an invocation of `cargo` to be run.
     ///
     /// This will create a `Command` that represents a pending execution of
@@ -1388,17 +1403,17 @@ impl<'a> Builder<'a> {
             },
         );
 
-        // `dsymutil` adds time to builds on Apple platforms for no clear benefit, and also makes
-        // it more difficult for debuggers to find debug info. The compiler currently defaults to
-        // running `dsymutil` to preserve its historical default, but when compiling the compiler
-        // itself, we skip it by default since we know it's safe to do so in that case.
-        // See https://github.com/rust-lang/rust/issues/79361 for more info on this flag.
-        if target.contains("apple") {
-            if self.config.rust_run_dsymutil {
-                rustflags.arg("-Csplit-debuginfo=packed");
-            } else {
-                rustflags.arg("-Csplit-debuginfo=unpacked");
+        // FIXME(davidtwco): #[cfg(not(bootstrap))] - #95612 needs to be in the bootstrap compiler
+        // for this conditional to be removed.
+        if !target.contains("windows") || compiler.stage >= 1 {
+            if target.contains("linux") || target.contains("windows") {
+                rustflags.arg("-Zunstable-options");
             }
+            match self.config.rust_split_debuginfo {
+                SplitDebuginfo::Packed => rustflags.arg("-Csplit-debuginfo=packed"),
+                SplitDebuginfo::Unpacked => rustflags.arg("-Csplit-debuginfo=unpacked"),
+                SplitDebuginfo::Off => rustflags.arg("-Csplit-debuginfo=off"),
+            };
         }
 
         if self.config.cmd.bless() {
@@ -1753,7 +1768,16 @@ impl<'a> Builder<'a> {
         };
 
         if self.config.print_step_timings && !self.config.dry_run {
-            println!("[TIMING] {:?} -- {}.{:03}", step, dur.as_secs(), dur.subsec_millis());
+            let step_string = format!("{:?}", step);
+            let brace_index = step_string.find("{").unwrap_or(0);
+            let type_string = type_name::<S>();
+            println!(
+                "[TIMING] {} {} -- {}.{:03}",
+                &type_string.strip_prefix("bootstrap::").unwrap_or(type_string),
+                &step_string[brace_index..],
+                dur.as_secs(),
+                dur.subsec_millis()
+            );
         }
 
         {