]> git.proxmox.com Git - rustc.git/blobdiff - src/bootstrap/dist.rs
New upstream version 1.48.0~beta.8+dfsg1
[rustc.git] / src / bootstrap / dist.rs
index 552965863d10a709d81fc52b8831116b3bbe4b1f..1887b805da19bcd46737a2d02f141faac500dc5b 100644 (file)
 use std::env;
 use std::fs;
 use std::io::Write;
-use std::path::{PathBuf, Path};
+use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};
 
 use build_helper::{output, t};
 
-use crate::{Compiler, Mode, LLVM_TOOLS};
-use crate::channel;
-use crate::util::{is_dylib, exe};
 use crate::builder::{Builder, RunConfig, ShouldRun, Step};
+use crate::cache::{Interned, INTERNER};
 use crate::compile;
+use crate::config::TargetSelection;
 use crate::tool::{self, Tool};
-use crate::cache::{INTERNER, Interned};
+use crate::util::{exe, is_dylib, timeit};
+use crate::{Compiler, DependencyType, Mode, LLVM_TOOLS};
 use time::{self, Timespec};
 
 pub fn pkgname(builder: &Builder<'_>, component: &str) -> String {
-    if component == "cargo" {
-        format!("{}-{}", component, builder.cargo_package_vers())
-    } else if component == "rls" {
-        format!("{}-{}", component, builder.rls_package_vers())
-    } else if component == "clippy" {
-        format!("{}-{}", component, builder.clippy_package_vers())
-    } else if component == "miri" {
-        format!("{}-{}", component, builder.miri_package_vers())
-    } else if component == "rustfmt" {
-        format!("{}-{}", component, builder.rustfmt_package_vers())
-    } else if component == "llvm-tools" {
-        format!("{}-{}", component, builder.llvm_tools_package_vers())
-    } else if component == "lldb" {
-        format!("{}-{}", component, builder.lldb_package_vers())
-    } else {
-        assert!(component.starts_with("rust"));
-        format!("{}-{}", component, builder.rust_package_vers())
-    }
+    format!("{}-{}", component, builder.rust_package_vers())
 }
 
-fn distdir(builder: &Builder<'_>) -> PathBuf {
+pub(crate) fn distdir(builder: &Builder<'_>) -> PathBuf {
     builder.out.join("dist")
 }
 
@@ -68,7 +51,7 @@ fn missing_tool(tool_name: &str, skip: bool) {
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Docs {
-    pub host: Interned<String>,
+    pub host: TargetSelection,
 }
 
 impl Step for Docs {
@@ -80,9 +63,7 @@ impl Step for Docs {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Docs {
-            host: run.target,
-        });
+        run.builder.ensure(Docs { host: run.target });
     }
 
     /// Builds the `rust-docs` installer component.
@@ -91,44 +72,49 @@ impl Step for Docs {
 
         let name = pkgname(builder, "rust-docs");
 
-        builder.info(&format!("Dist docs ({})", host));
         if !builder.config.docs {
-            builder.info("\tskipping - docs disabled");
-            return distdir(builder).join(format!("{}-{}.tar.gz", name, host));
+            return distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple));
         }
 
         builder.default_doc(None);
 
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, host));
+        builder.info(&format!("Dist docs ({})", host));
+        let _time = timeit(builder);
+
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, host.triple));
         let _ = fs::remove_dir_all(&image);
 
         let dst = image.join("share/doc/rust/html");
         t!(fs::create_dir_all(&dst));
         let src = builder.doc_out(host);
         builder.cp_r(&src, &dst);
+        builder.install(&builder.src.join("src/doc/robots.txt"), &dst, 0o644);
 
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust-Documentation")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Rust-documentation-is-installed.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}-{}", name, host))
-           .arg("--component-name=rust-docs")
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--bulk-dirs=share/doc/rust/html");
+            .arg("--product-name=Rust-Documentation")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rust-documentation-is-installed.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, host.triple))
+            .arg("--component-name=rust-docs")
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--bulk-dirs=share/doc/rust/html");
         builder.run(&mut cmd);
         builder.remove_dir(&image);
 
-        distdir(builder).join(format!("{}-{}.tar.gz", name, host))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple))
     }
 }
 
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct RustcDocs {
-    pub host: Interned<String>,
+    pub host: TargetSelection,
 }
 
 impl Step for RustcDocs {
@@ -140,9 +126,7 @@ impl Step for RustcDocs {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(RustcDocs {
-            host: run.target,
-        });
+        run.builder.ensure(RustcDocs { host: run.target });
     }
 
     /// Builds the `rustc-docs` installer component.
@@ -151,38 +135,42 @@ impl Step for RustcDocs {
 
         let name = pkgname(builder, "rustc-docs");
 
-        builder.info(&format!("Dist compiler docs ({})", host));
         if !builder.config.compiler_docs {
-            builder.info("\tskipping - compiler docs disabled");
-            return distdir(builder).join(format!("{}-{}.tar.gz", name, host));
+            return distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple));
         }
 
         builder.default_doc(None);
 
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, host));
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, host.triple));
         let _ = fs::remove_dir_all(&image);
 
-        let dst = image.join("share/doc/rust/html");
+        let dst = image.join("share/doc/rust/html/rustc");
         t!(fs::create_dir_all(&dst));
         let src = builder.compiler_doc_out(host);
         builder.cp_r(&src, &dst);
 
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rustc-Documentation")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Rustc-documentation-is-installed.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}-{}", name, host))
-           .arg("--component-name=rustc-docs")
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--bulk-dirs=share/doc/rust/html");
+            .arg("--product-name=Rustc-Documentation")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rustc-documentation-is-installed.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, host.triple))
+            .arg("--component-name=rustc-docs")
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--bulk-dirs=share/doc/rust/html/rustc");
+
+        builder.info(&format!("Dist compiler docs ({})", host));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
         builder.remove_dir(&image);
 
-        distdir(builder).join(format!("{}-{}.tar.gz", name, host))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple))
     }
 }
 
@@ -190,10 +178,7 @@ fn find_files(files: &[&str], path: &[PathBuf]) -> Vec<PathBuf> {
     let mut found = Vec::with_capacity(files.len());
 
     for file in files {
-        let file_path =
-            path.iter()
-                .map(|dir| dir.join(file))
-                .find(|p| p.exists());
+        let file_path = path.iter().map(|dir| dir.join(file)).find(|p| p.exists());
 
         if let Some(file_path) = file_path {
             found.push(file_path);
@@ -206,10 +191,13 @@ fn find_files(files: &[&str], path: &[PathBuf]) -> Vec<PathBuf> {
 }
 
 fn make_win_dist(
-    rust_root: &Path, plat_root: &Path, target_triple: Interned<String>, builder: &Builder<'_>
+    rust_root: &Path,
+    plat_root: &Path,
+    target: TargetSelection,
+    builder: &Builder<'_>,
 ) {
     //Ask gcc where it keeps its stuff
-    let mut cmd = Command::new(builder.cc(target_triple));
+    let mut cmd = Command::new(builder.cc(target));
     cmd.arg("-print-search-dirs");
     let gcc_out = output(&mut cmd);
 
@@ -220,11 +208,7 @@ fn make_win_dist(
         let idx = line.find(':').unwrap();
         let key = &line[..idx];
         let trim_chars: &[_] = &[' ', '='];
-        let value =
-            line[(idx + 1)..]
-                .trim_start_matches(trim_chars)
-                .split(';')
-                .map(PathBuf::from);
+        let value = env::split_paths(line[(idx + 1)..].trim_start_matches(trim_chars));
 
         if key == "programs" {
             bin_path.extend(value);
@@ -233,15 +217,23 @@ fn make_win_dist(
         }
     }
 
-    let target_tools = ["gcc.exe", "ld.exe", "dlltool.exe", "libwinpthread-1.dll"];
-    let mut rustc_dlls = vec!["libstdc++-6.dll", "libwinpthread-1.dll"];
-    if target_triple.starts_with("i686-") {
+    let compiler = if target == "i686-pc-windows-gnu" {
+        "i686-w64-mingw32-gcc.exe"
+    } else if target == "x86_64-pc-windows-gnu" {
+        "x86_64-w64-mingw32-gcc.exe"
+    } else {
+        "gcc.exe"
+    };
+    let target_tools = [compiler, "ld.exe", "dlltool.exe", "libwinpthread-1.dll"];
+    let mut rustc_dlls = vec!["libwinpthread-1.dll"];
+    if target.starts_with("i686-") {
         rustc_dlls.push("libgcc_s_dw2-1.dll");
     } else {
         rustc_dlls.push("libgcc_s_seh-1.dll");
     }
 
-    let target_libs = [ //MinGW libs
+    let target_libs = [
+        //MinGW libs
         "libgcc.a",
         "libgcc_eh.a",
         "libgcc_s.a",
@@ -299,7 +291,12 @@ fn make_win_dist(
     }
 
     //Copy platform tools to platform-specific bin directory
-    let target_bin_dir = plat_root.join("lib").join("rustlib").join(target_triple).join("bin");
+    let target_bin_dir = plat_root
+        .join("lib")
+        .join("rustlib")
+        .join(target.triple)
+        .join("bin")
+        .join("self-contained");
     fs::create_dir_all(&target_bin_dir).expect("creating target_bin_dir failed");
     for src in target_tools {
         builder.copy_to_folder(&src, &target_bin_dir);
@@ -308,13 +305,18 @@ fn make_win_dist(
     // Warn windows-gnu users that the bundled GCC cannot compile C files
     builder.create(
         &target_bin_dir.join("GCC-WARNING.txt"),
-        "gcc.exe contained in this folder cannot be used for compiling C files - it is only\
-         used as a linker. In order to be able to compile projects containing C code use\
-         the GCC provided by MinGW or Cygwin."
+        "gcc.exe contained in this folder cannot be used for compiling C files - it is only \
+         used as a linker. In order to be able to compile projects containing C code use \
+         the GCC provided by MinGW or Cygwin.",
     );
 
     //Copy platform libs to platform-specific lib directory
-    let target_lib_dir = plat_root.join("lib").join("rustlib").join(target_triple).join("lib");
+    let target_lib_dir = plat_root
+        .join("lib")
+        .join("rustlib")
+        .join(target.triple)
+        .join("lib")
+        .join("self-contained");
     fs::create_dir_all(&target_lib_dir).expect("creating target_lib_dir failed");
     for src in target_libs {
         builder.copy_to_folder(&src, &target_lib_dir);
@@ -323,7 +325,7 @@ fn make_win_dist(
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Mingw {
-    pub host: Interned<String>,
+    pub host: TargetSelection,
 }
 
 impl Step for Mingw {
@@ -350,8 +352,9 @@ impl Step for Mingw {
         }
 
         builder.info(&format!("Dist mingw ({})", host));
+        let _time = timeit(builder);
         let name = pkgname(builder, "rust-mingw");
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, host));
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, host.triple));
         let _ = fs::remove_dir_all(&image);
         t!(fs::create_dir_all(&image));
 
@@ -363,18 +366,21 @@ impl Step for Mingw {
 
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust-MinGW")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Rust-MinGW-is-installed.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}-{}", name, host))
-           .arg("--component-name=rust-mingw")
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust-MinGW")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rust-MinGW-is-installed.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, host.triple))
+            .arg("--component-name=rust-mingw")
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
         builder.run(&mut cmd);
         t!(fs::remove_dir_all(&image));
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, host)))
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple)))
     }
 }
 
@@ -393,9 +399,8 @@ impl Step for Rustc {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Rustc {
-            compiler: run.builder.compiler(run.builder.top_stage, run.target),
-        });
+        run.builder
+            .ensure(Rustc { compiler: run.builder.compiler(run.builder.top_stage, run.target) });
     }
 
     /// Creates the `rustc` installer component.
@@ -403,11 +408,10 @@ impl Step for Rustc {
         let compiler = self.compiler;
         let host = self.compiler.host;
 
-        builder.info(&format!("Dist rustc stage{} ({})", compiler.stage, host));
         let name = pkgname(builder, "rustc");
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, host));
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, host.triple));
         let _ = fs::remove_dir_all(&image);
-        let overlay = tmpdir(builder).join(format!("{}-{}-overlay", name, host));
+        let overlay = tmpdir(builder).join(format!("{}-{}-overlay", name, host.triple));
         let _ = fs::remove_dir_all(&overlay);
 
         // Prepare the rustc "image", what will actually end up getting installed
@@ -450,26 +454,32 @@ impl Step for Rustc {
         // Finally, wrap everything up in a nice tarball!
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Rust-is-ready-to-roll.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, host))
-           .arg("--component-name=rustc")
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rust-is-ready-to-roll.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, host.triple))
+            .arg("--component-name=rustc")
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder.info(&format!("Dist rustc stage{} ({})", compiler.stage, host.triple));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
         builder.remove_dir(&image);
         builder.remove_dir(&overlay);
 
-        return distdir(builder).join(format!("{}-{}.tar.gz", name, host));
+        return distdir(builder).join(format!("{}-{}.tar.gz", name, host.triple));
 
         fn prepare_image(builder: &Builder<'_>, compiler: Compiler, image: &Path) {
             let host = compiler.host;
             let src = builder.sysroot(compiler);
-            let libdir = builder.rustc_libdir(compiler);
 
             // Copy rustc/rustdoc binaries
             t!(fs::create_dir_all(image.join("bin")));
@@ -481,43 +491,33 @@ impl Step for Rustc {
 
             // Copy runtime DLLs needed by the compiler
             if libdir_relative.to_str() != Some("bin") {
+                let libdir = builder.rustc_libdir(compiler);
                 for entry in builder.read_dir(&libdir) {
                     let name = entry.file_name();
                     if let Some(s) = name.to_str() {
                         if is_dylib(s) {
-                            builder.install(&entry.path(), &image.join(&libdir_relative), 0o644);
+                            // Don't use custom libdir here because ^lib/ will be resolved again
+                            // with installer
+                            builder.install(&entry.path(), &image.join("lib"), 0o644);
                         }
                     }
                 }
             }
 
-            // Copy over the codegen backends
-            let backends_src = builder.sysroot_codegen_backends(compiler);
-            let backends_rel = backends_src.strip_prefix(&src).unwrap();
-            let backends_dst = image.join(&backends_rel);
-            t!(fs::create_dir_all(&backends_dst));
-            builder.cp_r(&backends_src, &backends_dst);
-
             // Copy libLLVM.so to the lib dir as well, if needed. While not
             // technically needed by rustc itself it's needed by lots of other
             // components like the llvm tools and LLD. LLD is included below and
             // tools/LLDB come later, so let's just throw it in the rustc
             // component for now.
-            maybe_install_llvm_dylib(builder, host, image);
+            maybe_install_llvm_runtime(builder, host, image);
 
             // Copy over lld if it's there
             if builder.config.lld_enabled {
-                let exe = exe("rust-lld", &compiler.host);
-                let src = builder.sysroot_libdir(compiler, host)
-                    .parent()
-                    .unwrap()
-                    .join("bin")
-                    .join(&exe);
+                let exe = exe("rust-lld", compiler.host);
+                let src =
+                    builder.sysroot_libdir(compiler, host).parent().unwrap().join("bin").join(&exe);
                 // for the rationale about this rename check `compile::copy_lld_to_sysroot`
-                let dst = image.join("lib/rustlib")
-                    .join(&*host)
-                    .join("bin")
-                    .join(&exe);
+                let dst = image.join("lib/rustlib").join(&*host.triple).join("bin").join(&exe);
                 t!(fs::create_dir_all(&dst.parent().unwrap()));
                 builder.copy(&src, &dst);
             }
@@ -530,9 +530,10 @@ impl Step for Rustc {
             // Reproducible builds: If SOURCE_DATE_EPOCH is set, use that as the time.
             let time = env::var("SOURCE_DATE_EPOCH")
                 .map(|timestamp| {
-                    let epoch = timestamp.parse().map_err(|err| {
-                        format!("could not parse SOURCE_DATE_EPOCH: {}", err)
-                    }).unwrap();
+                    let epoch = timestamp
+                        .parse()
+                        .map_err(|err| format!("could not parse SOURCE_DATE_EPOCH: {}", err))
+                        .unwrap();
 
                     time::at(Timespec::new(epoch, 0))
                 })
@@ -546,16 +547,18 @@ impl Step for Rustc {
                 let page_dst = man_dst.join(file_entry.file_name());
                 t!(fs::copy(&page_src, &page_dst));
                 // template in month/year and version number
-                builder.replace_in_file(&page_dst,
-                                &[("<INSERT DATE HERE>", &month_year),
-                                  ("<INSERT VERSION HERE>", channel::CFG_RELEASE_NUM)]);
+                builder.replace_in_file(
+                    &page_dst,
+                    &[
+                        ("<INSERT DATE HERE>", &month_year),
+                        ("<INSERT VERSION HERE>", &builder.version),
+                    ],
+                );
             }
 
             // Debugger scripts
-            builder.ensure(DebuggerScripts {
-                sysroot: INTERNER.intern_path(image.to_owned()),
-                host,
-            });
+            builder
+                .ensure(DebuggerScripts { sysroot: INTERNER.intern_path(image.to_owned()), host });
 
             // Misc license info
             let cp = |file: &str| {
@@ -572,7 +575,7 @@ impl Step for Rustc {
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct DebuggerScripts {
     pub sysroot: Interned<PathBuf>,
-    pub host: Interned<String>,
+    pub host: TargetSelection,
 }
 
 impl Step for DebuggerScripts {
@@ -584,7 +587,9 @@ impl Step for DebuggerScripts {
 
     fn make_run(run: RunConfig<'_>) {
         run.builder.ensure(DebuggerScripts {
-            sysroot: run.builder.sysroot(run.builder.compiler(run.builder.top_stage, run.host)),
+            sysroot: run
+                .builder
+                .sysroot(run.builder.compiler(run.builder.top_stage, run.build_triple())),
             host: run.target,
         });
     }
@@ -600,29 +605,59 @@ impl Step for DebuggerScripts {
         };
         if host.contains("windows-msvc") {
             // windbg debugger scripts
-            builder.install(&builder.src.join("src/etc/rust-windbg.cmd"), &sysroot.join("bin"),
-                0o755);
+            builder.install(
+                &builder.src.join("src/etc/rust-windbg.cmd"),
+                &sysroot.join("bin"),
+                0o755,
+            );
 
             cp_debugger_script("natvis/intrinsic.natvis");
             cp_debugger_script("natvis/liballoc.natvis");
             cp_debugger_script("natvis/libcore.natvis");
+            cp_debugger_script("natvis/libstd.natvis");
         } else {
-            cp_debugger_script("debugger_pretty_printers_common.py");
+            cp_debugger_script("rust_types.py");
 
             // gdb debugger scripts
-            builder.install(&builder.src.join("src/etc/rust-gdb"), &sysroot.join("bin"),
-                    0o755);
-            builder.install(&builder.src.join("src/etc/rust-gdbgui"), &sysroot.join("bin"),
-                    0o755);
+            builder.install(&builder.src.join("src/etc/rust-gdb"), &sysroot.join("bin"), 0o755);
+            builder.install(&builder.src.join("src/etc/rust-gdbgui"), &sysroot.join("bin"), 0o755);
 
             cp_debugger_script("gdb_load_rust_pretty_printers.py");
-            cp_debugger_script("gdb_rust_pretty_printing.py");
+            cp_debugger_script("gdb_lookup.py");
+            cp_debugger_script("gdb_providers.py");
 
             // lldb debugger scripts
-            builder.install(&builder.src.join("src/etc/rust-lldb"), &sysroot.join("bin"),
-                    0o755);
+            builder.install(&builder.src.join("src/etc/rust-lldb"), &sysroot.join("bin"), 0o755);
+
+            cp_debugger_script("lldb_lookup.py");
+            cp_debugger_script("lldb_providers.py");
+            cp_debugger_script("lldb_commands")
+        }
+    }
+}
+
+fn skip_host_target_lib(builder: &Builder<'_>, compiler: Compiler) -> bool {
+    // The only true set of target libraries came from the build triple, so
+    // let's reduce redundant work by only producing archives from that host.
+    if compiler.host != builder.config.build {
+        builder.info("\tskipping, not a build host");
+        true
+    } else {
+        false
+    }
+}
 
-            cp_debugger_script("lldb_rust_formatters.py");
+/// Copy stamped files into an image's `target/lib` directory.
+fn copy_target_libs(builder: &Builder<'_>, target: TargetSelection, image: &Path, stamp: &Path) {
+    let dst = image.join("lib/rustlib").join(target.triple).join("lib");
+    let self_contained_dst = dst.join("self-contained");
+    t!(fs::create_dir_all(&dst));
+    t!(fs::create_dir_all(&self_contained_dst));
+    for (path, dependency_type) in builder.read_stamp_file(stamp) {
+        if dependency_type == DependencyType::TargetSelfContained {
+            builder.copy(&path, &self_contained_dst.join(path.file_name().unwrap()));
+        } else if dependency_type == DependencyType::Target || builder.config.build == target {
+            builder.copy(&path, &dst.join(path.file_name().unwrap()));
         }
     }
 }
@@ -630,7 +665,7 @@ impl Step for DebuggerScripts {
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Std {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Std {
@@ -638,7 +673,7 @@ impl Step for Std {
     const DEFAULT: bool = true;
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.path("src/libstd")
+        run.path("library/std")
     }
 
     fn make_run(run: RunConfig<'_>) {
@@ -657,73 +692,131 @@ impl Step for Std {
         let target = self.target;
 
         let name = pkgname(builder, "rust-std");
-        builder.info(&format!("Dist std stage{} ({} -> {})",
-            compiler.stage, &compiler.host, target));
-
-        // The only true set of target libraries came from the build triple, so
-        // let's reduce redundant work by only producing archives from that host.
-        if compiler.host != builder.config.build {
-            builder.info("\tskipping, not a build host");
-            return distdir(builder).join(format!("{}-{}.tar.gz", name, target));
+        let archive = distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple));
+        if skip_host_target_lib(builder, compiler) {
+            return archive;
         }
 
-        // We want to package up as many target libraries as possible
-        // for the `rust-std` package, so if this is a host target we
-        // depend on librustc and otherwise we just depend on libtest.
-        if builder.hosts.iter().any(|t| t == target) {
-            builder.ensure(compile::Rustc { compiler, target });
-        } else {
-            if builder.no_std(target) == Some(true) {
-                // the `test` doesn't compile for no-std targets
-                builder.ensure(compile::Std { compiler, target });
-            } else {
-                builder.ensure(compile::Test { compiler, target });
-            }
-        }
+        builder.ensure(compile::Std { compiler, target });
 
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, target));
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, target.triple));
         let _ = fs::remove_dir_all(&image);
 
-        let dst = image.join("lib/rustlib").join(target);
-        t!(fs::create_dir_all(&dst));
-        let mut src = builder.sysroot_libdir(compiler, target).to_path_buf();
-        src.pop(); // Remove the trailing /lib folder from the sysroot_libdir
-        builder.cp_filtered(&src, &dst, &|path| {
-            if let Some(name) = path.file_name().and_then(|s| s.to_str()) {
-                if name == builder.config.rust_codegen_backends_dir.as_str() {
-                    return false
-                }
-                if name == "bin" {
-                    return false
-                }
-                if name.contains("LLVM") {
-                    return false
-                }
-            }
-            true
+        let compiler_to_use = builder.compiler_for(compiler.stage, compiler.host, target);
+        let stamp = compile::libstd_stamp(builder, compiler_to_use, target);
+        copy_target_libs(builder, target, &image, &stamp);
+
+        let mut cmd = rust_installer(builder);
+        cmd.arg("generate")
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=std-is-standing-at-the-ready.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg(format!("--component-name=rust-std-{}", target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder
+            .info(&format!("Dist std stage{} ({} -> {})", compiler.stage, &compiler.host, target));
+        let _time = timeit(builder);
+        builder.run(&mut cmd);
+        builder.remove_dir(&image);
+        archive
+    }
+}
+
+#[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
+pub struct RustcDev {
+    pub compiler: Compiler,
+    pub target: TargetSelection,
+}
+
+impl Step for RustcDev {
+    type Output = PathBuf;
+    const DEFAULT: bool = true;
+    const ONLY_HOSTS: bool = true;
+
+    fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
+        run.path("rustc-dev")
+    }
+
+    fn make_run(run: RunConfig<'_>) {
+        run.builder.ensure(RustcDev {
+            compiler: run.builder.compiler_for(
+                run.builder.top_stage,
+                run.builder.config.build,
+                run.target,
+            ),
+            target: run.target,
         });
+    }
+
+    fn run(self, builder: &Builder<'_>) -> PathBuf {
+        let compiler = self.compiler;
+        let target = self.target;
+
+        let name = pkgname(builder, "rustc-dev");
+        let archive = distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple));
+        if skip_host_target_lib(builder, compiler) {
+            return archive;
+        }
+
+        builder.ensure(compile::Rustc { compiler, target });
+
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, target.triple));
+        let _ = fs::remove_dir_all(&image);
+
+        let compiler_to_use = builder.compiler_for(compiler.stage, compiler.host, target);
+        let stamp = compile::librustc_stamp(builder, compiler_to_use, target);
+        copy_target_libs(builder, target, &image, &stamp);
+
+        // Copy compiler sources.
+        let dst_src = image.join("lib/rustlib/rustc-src/rust");
+        t!(fs::create_dir_all(&dst_src));
+
+        let src_files = ["Cargo.lock"];
+        // This is the reduced set of paths which will become the rustc-dev component
+        // (essentially the compiler crates and all of their path dependencies).
+        copy_src_dirs(builder, &builder.src, &["compiler"], &[], &dst_src);
+        for file in src_files.iter() {
+            builder.copy(&builder.src.join(file), &dst_src.join(file));
+        }
 
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=std-is-standing-at-the-ready.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg(format!("--component-name=rust-std-{}", target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rust-is-ready-to-develop.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg(format!("--component-name=rustc-dev-{}", target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder.info(&format!(
+            "Dist rustc-dev stage{} ({} -> {})",
+            compiler.stage, &compiler.host, target
+        ));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
         builder.remove_dir(&image);
-        distdir(builder).join(format!("{}-{}.tar.gz", name, target))
+        archive
     }
 }
 
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Analysis {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Analysis {
@@ -754,80 +847,95 @@ impl Step for Analysis {
         let compiler = self.compiler;
         let target = self.target;
         assert!(builder.config.extended);
-        builder.info("Dist analysis");
         let name = pkgname(builder, "rust-analysis");
 
-        if &compiler.host != builder.config.build {
-            builder.info("\tskipping, not a build host");
-            return distdir(builder).join(format!("{}-{}.tar.gz", name, target));
+        if compiler.host != builder.config.build {
+            return distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple));
         }
 
-        builder.ensure(Std { compiler, target });
+        builder.ensure(compile::Std { compiler, target });
 
-        let image = tmpdir(builder).join(format!("{}-{}-image", name, target));
+        let image = tmpdir(builder).join(format!("{}-{}-image", name, target.triple));
 
-        let src = builder.stage_out(compiler, Mode::Std)
-            .join(target).join(builder.cargo_dir()).join("deps");
+        let src = builder
+            .stage_out(compiler, Mode::Std)
+            .join(target.triple)
+            .join(builder.cargo_dir())
+            .join("deps");
 
         let image_src = src.join("save-analysis");
-        let dst = image.join("lib/rustlib").join(target).join("analysis");
+        let dst = image.join("lib/rustlib").join(target.triple).join("analysis");
         t!(fs::create_dir_all(&dst));
         builder.info(&format!("image_src: {:?}, dst: {:?}", image_src, dst));
         builder.cp_r(&image_src, &dst);
 
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=save-analysis-saved.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg(format!("--component-name=rust-analysis-{}", target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=save-analysis-saved.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg(format!("--component-name=rust-analysis-{}", target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder.info("Dist analysis");
+        let _time = timeit(builder);
         builder.run(&mut cmd);
         builder.remove_dir(&image);
-        distdir(builder).join(format!("{}-{}.tar.gz", name, target))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple))
     }
 }
 
-fn copy_src_dirs(builder: &Builder<'_>, src_dirs: &[&str], exclude_dirs: &[&str], dst_dir: &Path) {
+/// Use the `builder` to make a filtered copy of `base`/X for X in (`src_dirs` - `exclude_dirs`) to
+/// `dst_dir`.
+fn copy_src_dirs(
+    builder: &Builder<'_>,
+    base: &Path,
+    src_dirs: &[&str],
+    exclude_dirs: &[&str],
+    dst_dir: &Path,
+) {
     fn filter_fn(exclude_dirs: &[&str], dir: &str, path: &Path) -> bool {
         let spath = match path.to_str() {
             Some(path) => path,
             None => return false,
         };
-        if spath.ends_with("~") || spath.ends_with(".pyc") {
-            return false
+        if spath.ends_with('~') || spath.ends_with(".pyc") {
+            return false;
         }
 
         const LLVM_PROJECTS: &[&str] = &[
-            "llvm-project/clang", "llvm-project\\clang",
-            "llvm-project/libunwind", "llvm-project\\libunwind",
-            "llvm-project/lld", "llvm-project\\lld",
-            "llvm-project/lldb", "llvm-project\\lldb",
-            "llvm-project/llvm", "llvm-project\\llvm",
-            "llvm-project/compiler-rt", "llvm-project\\compiler-rt",
+            "llvm-project/clang",
+            "llvm-project\\clang",
+            "llvm-project/libunwind",
+            "llvm-project\\libunwind",
+            "llvm-project/lld",
+            "llvm-project\\lld",
+            "llvm-project/lldb",
+            "llvm-project\\lldb",
+            "llvm-project/llvm",
+            "llvm-project\\llvm",
+            "llvm-project/compiler-rt",
+            "llvm-project\\compiler-rt",
         ];
-        if spath.contains("llvm-project") && !spath.ends_with("llvm-project")
+        if spath.contains("llvm-project")
+            && !spath.ends_with("llvm-project")
             && !LLVM_PROJECTS.iter().any(|path| spath.contains(path))
         {
             return false;
         }
 
-        const LLVM_TEST: &[&str] = &[
-            "llvm-project/llvm/test", "llvm-project\\llvm\\test",
-            "llvm-emscripten/test", "llvm-emscripten\\test",
-        ];
-        if LLVM_TEST.iter().any(|path| spath.contains(path)) &&
-            (spath.ends_with(".ll") ||
-             spath.ends_with(".td") ||
-             spath.ends_with(".s")) {
-            return false
-        }
-        if spath.contains("test/emscripten") || spath.contains("test\\emscripten") {
-            return false
+        const LLVM_TEST: &[&str] = &["llvm-project/llvm/test", "llvm-project\\llvm\\test"];
+        if LLVM_TEST.iter().any(|path| spath.contains(path))
+            && (spath.ends_with(".ll") || spath.ends_with(".td") || spath.ends_with(".s"))
+        {
+            return false;
         }
 
         let full_path = Path::new(dir).join(path);
@@ -836,22 +944,36 @@ fn copy_src_dirs(builder: &Builder<'_>, src_dirs: &[&str], exclude_dirs: &[&str]
         }
 
         let excludes = [
-            "CVS", "RCS", "SCCS", ".git", ".gitignore", ".gitmodules",
-            ".gitattributes", ".cvsignore", ".svn", ".arch-ids", "{arch}",
-            "=RELEASE-ID", "=meta-update", "=update", ".bzr", ".bzrignore",
-            ".bzrtags", ".hg", ".hgignore", ".hgrags", "_darcs",
+            "CVS",
+            "RCS",
+            "SCCS",
+            ".git",
+            ".gitignore",
+            ".gitmodules",
+            ".gitattributes",
+            ".cvsignore",
+            ".svn",
+            ".arch-ids",
+            "{arch}",
+            "=RELEASE-ID",
+            "=meta-update",
+            "=update",
+            ".bzr",
+            ".bzrignore",
+            ".bzrtags",
+            ".hg",
+            ".hgignore",
+            ".hgrags",
+            "_darcs",
         ];
-        !path.iter()
-             .map(|s| s.to_str().unwrap())
-             .any(|s| excludes.contains(&s))
+        !path.iter().map(|s| s.to_str().unwrap()).any(|s| excludes.contains(&s))
     }
 
     // Copy the directories using our filter
     for item in src_dirs {
         let dst = &dst_dir.join(item);
         t!(fs::create_dir_all(dst));
-        builder.cp_filtered(
-            &builder.src.join(item), dst, &|path| filter_fn(exclude_dirs, item, path));
+        builder.cp_filtered(&base.join(item), dst, &|path| filter_fn(exclude_dirs, item, path));
     }
 }
 
@@ -874,45 +996,34 @@ impl Step for Src {
 
     /// Creates the `rust-src` installer component
     fn run(self, builder: &Builder<'_>) -> PathBuf {
-        builder.info("Dist src");
-
         let name = pkgname(builder, "rust-src");
         let image = tmpdir(builder).join(format!("{}-image", name));
         let _ = fs::remove_dir_all(&image);
 
-        let dst = image.join("lib/rustlib/src");
-        let dst_src = dst.join("rust");
+        // A lot of tools expect the rust-src component to be entirely in this directory, so if you
+        // change that (e.g. by adding another directory `lib/rustlib/src/foo` or
+        // `lib/rustlib/src/rust/foo`), you will need to go around hunting for implicit assumptions
+        // and fix them...
+        //
+        // NOTE: if you update the paths here, you also should update the "virtual" path
+        // translation code in `imported_source_files` in `src/librustc_metadata/rmeta/decoder.rs`
+        let dst_src = image.join("lib/rustlib/src/rust");
         t!(fs::create_dir_all(&dst_src));
 
-        let src_files = [
-            "Cargo.lock",
-        ];
+        let src_files = ["Cargo.lock"];
         // This is the reduced set of paths which will become the rust-src component
-        // (essentially libstd and all of its path dependencies)
-        let std_src_dirs = [
-            "src/build_helper",
-            "src/liballoc",
-            "src/libcore",
-            "src/libpanic_abort",
-            "src/libpanic_unwind",
-            "src/librustc_asan",
-            "src/librustc_lsan",
-            "src/librustc_msan",
-            "src/librustc_tsan",
-            "src/libstd",
-            "src/libunwind",
-            "src/libtest",
-            "src/libterm",
-            "src/libprofiler_builtins",
-            "src/stdarch",
-            "src/libproc_macro",
-            "src/tools/rustc-std-workspace-core",
-            "src/tools/rustc-std-workspace-alloc",
-            "src/librustc",
-            "src/libsyntax",
-        ];
-
-        copy_src_dirs(builder, &std_src_dirs[..], &[], &dst_src);
+        // (essentially libstd and all of its path dependencies).
+        copy_src_dirs(
+            builder,
+            &builder.src,
+            &["library", "src/llvm-project/libunwind"],
+            &[
+                // not needed and contains symlinks which rustup currently
+                // chokes on when unpacking.
+                "library/backtrace/crates",
+            ],
+            &dst_src,
+        );
         for file in src_files.iter() {
             builder.copy(&builder.src.join(file), &dst_src.join(file));
         }
@@ -920,15 +1031,21 @@ impl Step for Src {
         // Create source tarball in rust-installer format
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Awesome-Source.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg(format!("--package-name={}", name))
-           .arg("--component-name=rust-src")
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Awesome-Source.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}", name))
+            .arg("--component-name=rust-src")
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder.info("Dist src");
+        let _time = timeit(builder);
         builder.run(&mut cmd);
 
         builder.remove_dir(&image);
@@ -956,8 +1073,6 @@ impl Step for PlainSourceTarball {
 
     /// Creates the plain source tarball
     fn run(self, builder: &Builder<'_>) -> PathBuf {
-        builder.info("Create plain source tarball");
-
         // Make sure that the root folder of tarball has the correct name
         let plain_name = format!("{}-src", pkgname(builder, "rustc"));
         let plain_dst_src = tmpdir(builder).join(&plain_name);
@@ -978,11 +1093,9 @@ impl Step for PlainSourceTarball {
             "Cargo.toml",
             "Cargo.lock",
         ];
-        let src_dirs = [
-            "src",
-        ];
+        let src_dirs = ["src", "compiler", "library"];
 
-        copy_src_dirs(builder, &src_dirs[..], &[], &plain_dst_src);
+        copy_src_dirs(builder, &builder.src, &src_dirs, &[], &plain_dst_src);
 
         // Copy the files normally
         for item in &src_files {
@@ -1000,7 +1113,9 @@ impl Step for PlainSourceTarball {
             // Vendor all Cargo dependencies
             let mut cmd = Command::new(&builder.initial_cargo);
             cmd.arg("vendor")
-               .current_dir(&plain_dst_src);
+                .arg("--sync")
+                .arg(builder.src.join("./src/tools/rust-analyzer/Cargo.toml"))
+                .current_dir(&plain_dst_src);
             builder.run(&mut cmd);
         }
 
@@ -1015,10 +1130,15 @@ impl Step for PlainSourceTarball {
         builder.info("running installer");
         let mut cmd = rust_installer(builder);
         cmd.arg("tarball")
-           .arg("--input").arg(&plain_name)
-           .arg("--output").arg(&tarball)
-           .arg("--work-dir=.")
-           .current_dir(tmpdir(builder));
+            .arg("--input")
+            .arg(&plain_name)
+            .arg("--output")
+            .arg(&tarball)
+            .arg("--work-dir=.")
+            .current_dir(tmpdir(builder));
+
+        builder.info("Create plain source tarball");
+        let _time = timeit(builder);
         builder.run(&mut cmd);
         distdir(builder).join(&format!("{}.tar.gz", plain_name))
     }
@@ -1034,10 +1154,10 @@ pub fn sanitize_sh(path: &Path) -> String {
         let mut ch = s.chars();
         let drive = ch.next().unwrap_or('C');
         if ch.next() != Some(':') {
-            return None
+            return None;
         }
         if ch.next() != Some('/') {
-            return None
+            return None;
         }
         Some(format!("/{}/{}", drive, &s[drive.len_utf8() + 2..]))
     }
@@ -1046,7 +1166,7 @@ pub fn sanitize_sh(path: &Path) -> String {
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Cargo {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Cargo {
@@ -1072,7 +1192,6 @@ impl Step for Cargo {
         let compiler = self.compiler;
         let target = self.target;
 
-        builder.info(&format!("Dist cargo stage{} ({})", compiler.stage, target));
         let src = builder.src.join("src/tools/cargo");
         let etc = src.join("src/etc");
         let release_num = builder.release_num("cargo");
@@ -1094,8 +1213,7 @@ impl Step for Cargo {
             builder.install(&man.path(), &image.join("share/man/man1"), 0o644);
         }
         builder.install(&etc.join("_cargo"), &image.join("share/zsh/site-functions"), 0o644);
-        builder.copy(&etc.join("cargo.bashcomp.sh"),
-             &image.join("etc/bash_completion.d/cargo"));
+        builder.copy(&etc.join("cargo.bashcomp.sh"), &image.join("etc/bash_completion.d/cargo"));
         let doc = image.join("share/doc/cargo");
         builder.install(&src.join("README.md"), &doc, 0o644);
         builder.install(&src.join("LICENSE-MIT"), &doc, 0o644);
@@ -1115,25 +1233,32 @@ impl Step for Cargo {
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=Rust-is-ready-to-roll.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg("--component-name=cargo")
-           .arg("--legacy-manifest-dirs=rustlib,cargo");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=Rust-is-ready-to-roll.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--component-name=cargo")
+            .arg("--legacy-manifest-dirs=rustlib,cargo");
+
+        builder.info(&format!("Dist cargo stage{} ({})", compiler.stage, target));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
-        distdir(builder).join(format!("{}-{}.tar.gz", name, target))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple))
     }
 }
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Rls {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Rls {
@@ -1160,7 +1285,6 @@ impl Step for Rls {
         let target = self.target;
         assert!(builder.config.extended);
 
-        builder.info(&format!("Dist RLS stage{} ({})", compiler.stage, target));
         let src = builder.src.join("src/tools/rls");
         let release_num = builder.release_num("rls");
         let name = pkgname(builder, "rls");
@@ -1174,11 +1298,12 @@ impl Step for Rls {
         // Prepare the image directory
         // We expect RLS to build, because we've exited this step above if tool
         // state for RLS isn't testing.
-        let rls = builder.ensure(tool::Rls {
-            compiler,
-            target,
-            extra_features: Vec::new(),
-        }).or_else(|| { missing_tool("RLS", builder.build.config.missing_tools); None })?;
+        let rls = builder
+            .ensure(tool::Rls { compiler, target, extra_features: Vec::new() })
+            .or_else(|| {
+                missing_tool("RLS", builder.build.config.missing_tools);
+                None
+            })?;
 
         builder.install(&rls, &image.join("bin"), 0o755);
         let doc = image.join("share/doc/rls");
@@ -1198,30 +1323,129 @@ impl Step for Rls {
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=RLS-ready-to-serve.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--component-name=rls-preview");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=RLS-ready-to-serve.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=rls-preview");
+
+        builder.info(&format!("Dist RLS stage{} ({})", compiler.stage, target.triple));
+        let _time = timeit(builder);
+        builder.run(&mut cmd);
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
+    }
+}
+
+#[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
+pub struct RustAnalyzer {
+    pub compiler: Compiler,
+    pub target: TargetSelection,
+}
+
+impl Step for RustAnalyzer {
+    type Output = Option<PathBuf>;
+    const ONLY_HOSTS: bool = true;
+
+    fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
+        run.path("rust-analyzer")
+    }
+
+    fn make_run(run: RunConfig<'_>) {
+        run.builder.ensure(RustAnalyzer {
+            compiler: run.builder.compiler_for(
+                run.builder.top_stage,
+                run.builder.config.build,
+                run.target,
+            ),
+            target: run.target,
+        });
+    }
+
+    fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
+        let compiler = self.compiler;
+        let target = self.target;
+        assert!(builder.config.extended);
+
+        if target.contains("riscv64") {
+            // riscv64 currently has an LLVM bug that makes rust-analyzer unable
+            // to build. See #74813 for details.
+            return None;
+        }
+
+        let src = builder.src.join("src/tools/rust-analyzer");
+        let release_num = builder.release_num("rust-analyzer/crates/rust-analyzer");
+        let name = pkgname(builder, "rust-analyzer");
+        let version = builder.rust_analyzer_info.version(builder, &release_num);
+
+        let tmp = tmpdir(builder);
+        let image = tmp.join("rust-analyzer-image");
+        drop(fs::remove_dir_all(&image));
+        builder.create_dir(&image);
+
+        // Prepare the image directory
+        // We expect rust-analyer to always build, as it doesn't depend on rustc internals
+        // and doesn't have associated toolstate.
+        let rust_analyzer = builder
+            .ensure(tool::RustAnalyzer { compiler, target, extra_features: Vec::new() })
+            .expect("rust-analyzer always builds");
+
+        builder.install(&rust_analyzer, &image.join("bin"), 0o755);
+        let doc = image.join("share/doc/rust-analyzer");
+        builder.install(&src.join("README.md"), &doc, 0o644);
+        builder.install(&src.join("LICENSE-APACHE"), &doc, 0o644);
+        builder.install(&src.join("LICENSE-MIT"), &doc, 0o644);
+
+        // Prepare the overlay
+        let overlay = tmp.join("rust-analyzer-overlay");
+        drop(fs::remove_dir_all(&overlay));
+        t!(fs::create_dir_all(&overlay));
+        builder.install(&src.join("README.md"), &overlay, 0o644);
+        builder.install(&src.join("LICENSE-APACHE"), &doc, 0o644);
+        builder.install(&src.join("LICENSE-MIT"), &doc, 0o644);
+        builder.create(&overlay.join("version"), &version);
+
+        // Generate the installer tarball
+        let mut cmd = rust_installer(builder);
+        cmd.arg("generate")
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=rust-analyzer-ready-to-serve.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=rust-analyzer-preview");
 
+        builder.info(&format!("Dist rust-analyzer stage{} ({})", compiler.stage, target));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
     }
 }
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Clippy {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Clippy {
-    type Output = Option<PathBuf>;
+    type Output = PathBuf;
     const ONLY_HOSTS: bool = true;
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
@@ -1239,12 +1463,11 @@ impl Step for Clippy {
         });
     }
 
-    fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
+    fn run(self, builder: &Builder<'_>) -> PathBuf {
         let compiler = self.compiler;
         let target = self.target;
         assert!(builder.config.extended);
 
-        builder.info(&format!("Dist clippy stage{} ({})", compiler.stage, target));
         let src = builder.src.join("src/tools/clippy");
         let release_num = builder.release_num("clippy");
         let name = pkgname(builder, "clippy");
@@ -1258,15 +1481,12 @@ impl Step for Clippy {
         // Prepare the image directory
         // We expect clippy to build, because we've exited this step above if tool
         // state for clippy isn't testing.
-        let clippy = builder.ensure(tool::Clippy {
-            compiler,
-            target,
-            extra_features: Vec::new(),
-        }).or_else(|| { missing_tool("clippy", builder.build.config.missing_tools); None })?;
-        let cargoclippy = builder.ensure(tool::CargoClippy {
-            compiler,
-            target, extra_features: Vec::new()
-        }).or_else(|| { missing_tool("cargo clippy", builder.build.config.missing_tools); None })?;
+        let clippy = builder
+            .ensure(tool::Clippy { compiler, target, extra_features: Vec::new() })
+            .expect("clippy expected to build - essential tool");
+        let cargoclippy = builder
+            .ensure(tool::CargoClippy { compiler, target, extra_features: Vec::new() })
+            .expect("clippy expected to build - essential tool");
 
         builder.install(&clippy, &image.join("bin"), 0o755);
         builder.install(&cargoclippy, &image.join("bin"), 0o755);
@@ -1287,26 +1507,32 @@ impl Step for Clippy {
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=clippy-ready-to-serve.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--component-name=clippy-preview");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=clippy-ready-to-serve.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=clippy-preview");
 
+        builder.info(&format!("Dist clippy stage{} ({})", compiler.stage, target));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple))
     }
 }
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Miri {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Miri {
@@ -1333,7 +1559,6 @@ impl Step for Miri {
         let target = self.target;
         assert!(builder.config.extended);
 
-        builder.info(&format!("Dist miri stage{} ({})", compiler.stage, target));
         let src = builder.src.join("src/tools/miri");
         let release_num = builder.release_num("miri");
         let name = pkgname(builder, "miri");
@@ -1347,16 +1572,18 @@ impl Step for Miri {
         // Prepare the image directory
         // We expect miri to build, because we've exited this step above if tool
         // state for miri isn't testing.
-        let miri = builder.ensure(tool::Miri {
-            compiler,
-            target,
-            extra_features: Vec::new(),
-        }).or_else(|| { missing_tool("miri", builder.build.config.missing_tools); None })?;
-        let cargomiri = builder.ensure(tool::CargoMiri {
-            compiler,
-            target,
-            extra_features: Vec::new()
-        }).or_else(|| { missing_tool("cargo miri", builder.build.config.missing_tools); None })?;
+        let miri = builder
+            .ensure(tool::Miri { compiler, target, extra_features: Vec::new() })
+            .or_else(|| {
+                missing_tool("miri", builder.build.config.missing_tools);
+                None
+            })?;
+        let cargomiri = builder
+            .ensure(tool::CargoMiri { compiler, target, extra_features: Vec::new() })
+            .or_else(|| {
+                missing_tool("cargo miri", builder.build.config.missing_tools);
+                None
+            })?;
 
         builder.install(&miri, &image.join("bin"), 0o755);
         builder.install(&cargomiri, &image.join("bin"), 0o755);
@@ -1377,26 +1604,32 @@ impl Step for Miri {
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=miri-ready-to-serve.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--component-name=miri-preview");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=miri-ready-to-serve.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=miri-preview");
 
+        builder.info(&format!("Dist miri stage{} ({})", compiler.stage, target));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
     }
 }
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Rustfmt {
     pub compiler: Compiler,
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for Rustfmt {
@@ -1422,7 +1655,6 @@ impl Step for Rustfmt {
         let compiler = self.compiler;
         let target = self.target;
 
-        builder.info(&format!("Dist Rustfmt stage{} ({})", compiler.stage, target));
         let src = builder.src.join("src/tools/rustfmt");
         let release_num = builder.release_num("rustfmt");
         let name = pkgname(builder, "rustfmt");
@@ -1434,16 +1666,18 @@ impl Step for Rustfmt {
         builder.create_dir(&image);
 
         // Prepare the image directory
-        let rustfmt = builder.ensure(tool::Rustfmt {
-            compiler,
-            target,
-            extra_features: Vec::new(),
-        }).or_else(|| { missing_tool("Rustfmt", builder.build.config.missing_tools); None })?;
-        let cargofmt = builder.ensure(tool::Cargofmt {
-            compiler,
-            target,
-            extra_features: Vec::new(),
-        }).or_else(|| { missing_tool("Cargofmt", builder.build.config.missing_tools); None })?;
+        let rustfmt = builder
+            .ensure(tool::Rustfmt { compiler, target, extra_features: Vec::new() })
+            .or_else(|| {
+                missing_tool("Rustfmt", builder.build.config.missing_tools);
+                None
+            })?;
+        let cargofmt = builder
+            .ensure(tool::Cargofmt { compiler, target, extra_features: Vec::new() })
+            .or_else(|| {
+                missing_tool("Cargofmt", builder.build.config.missing_tools);
+                None
+            })?;
 
         builder.install(&rustfmt, &image.join("bin"), 0o755);
         builder.install(&cargofmt, &image.join("bin"), 0o755);
@@ -1464,27 +1698,33 @@ impl Step for Rustfmt {
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
-           .arg("--product-name=Rust")
-           .arg("--rel-manifest-dir=rustlib")
-           .arg("--success-message=rustfmt-ready-to-fmt.")
-           .arg("--image-dir").arg(&image)
-           .arg("--work-dir").arg(&tmpdir(builder))
-           .arg("--output-dir").arg(&distdir(builder))
-           .arg("--non-installed-overlay").arg(&overlay)
-           .arg(format!("--package-name={}-{}", name, target))
-           .arg("--legacy-manifest-dirs=rustlib,cargo")
-           .arg("--component-name=rustfmt-preview");
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=rustfmt-ready-to-fmt.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=rustfmt-preview");
 
+        builder.info(&format!("Dist Rustfmt stage{} ({})", compiler.stage, target));
+        let _time = timeit(builder);
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
     }
 }
 
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Extended {
     stage: u32,
-    host: Interned<String>,
-    target: Interned<String>,
+    host: TargetSelection,
+    target: TargetSelection,
 }
 
 impl Step for Extended {
@@ -1513,24 +1753,20 @@ impl Step for Extended {
 
         builder.info(&format!("Dist extended stage{} ({})", compiler.stage, target));
 
-        let rustc_installer = builder.ensure(Rustc {
-            compiler: builder.compiler(stage, target),
-        });
+        let rustc_installer = builder.ensure(Rustc { compiler: builder.compiler(stage, target) });
         let cargo_installer = builder.ensure(Cargo { compiler, target });
         let rustfmt_installer = builder.ensure(Rustfmt { compiler, target });
         let rls_installer = builder.ensure(Rls { compiler, target });
+        let rust_analyzer_installer = builder.ensure(RustAnalyzer { compiler, target });
         let llvm_tools_installer = builder.ensure(LlvmTools { target });
         let clippy_installer = builder.ensure(Clippy { compiler, target });
         let miri_installer = builder.ensure(Miri { compiler, target });
-        let lldb_installer = builder.ensure(Lldb { target });
         let mingw_installer = builder.ensure(Mingw { host: target });
         let analysis_installer = builder.ensure(Analysis { compiler, target });
 
-        let docs_installer = builder.ensure(Docs { host: target, });
-        let std_installer = builder.ensure(Std {
-            compiler: builder.compiler(stage, target),
-            target,
-        });
+        let docs_installer = builder.ensure(Docs { host: target });
+        let std_installer =
+            builder.ensure(Std { compiler: builder.compiler(stage, target), target });
 
         let tmp = tmpdir(builder);
         let overlay = tmp.join("extended-overlay");
@@ -1556,11 +1792,11 @@ impl Step for Extended {
         tarballs.push(rustc_installer);
         tarballs.push(cargo_installer);
         tarballs.extend(rls_installer.clone());
-        tarballs.extend(clippy_installer.clone());
+        tarballs.extend(rust_analyzer_installer.clone());
+        tarballs.push(clippy_installer);
         tarballs.extend(miri_installer.clone());
         tarballs.extend(rustfmt_installer.clone());
         tarballs.extend(llvm_tools_installer);
-        tarballs.extend(lldb_installer);
         tarballs.push(analysis_installer);
         tarballs.push(std_installer);
         if builder.config.docs {
@@ -1575,18 +1811,25 @@ impl Step for Extended {
             input_tarballs.push(tarball);
         }
 
+        builder.info("building combined installer");
         let mut cmd = rust_installer(builder);
         cmd.arg("combine")
             .arg("--product-name=Rust")
             .arg("--rel-manifest-dir=rustlib")
             .arg("--success-message=Rust-is-ready-to-roll.")
-            .arg("--work-dir").arg(&work)
-            .arg("--output-dir").arg(&distdir(builder))
-            .arg(format!("--package-name={}-{}", pkgname(builder, "rust"), target))
+            .arg("--work-dir")
+            .arg(&work)
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg(format!("--package-name={}-{}", pkgname(builder, "rust"), target.triple))
             .arg("--legacy-manifest-dirs=rustlib,cargo")
-            .arg("--input-tarballs").arg(input_tarballs)
-            .arg("--non-installed-overlay").arg(&overlay);
+            .arg("--input-tarballs")
+            .arg(input_tarballs)
+            .arg("--non-installed-overlay")
+            .arg(&overlay);
+        let time = timeit(&builder);
         builder.run(&mut cmd);
+        drop(time);
 
         let mut license = String::new();
         license += &builder.read(&builder.src.join("COPYRIGHT"));
@@ -1627,8 +1870,8 @@ impl Step for Extended {
             if rls_installer.is_none() {
                 contents = filter(&contents, "rls");
             }
-            if clippy_installer.is_none() {
-                contents = filter(&contents, "clippy");
+            if rust_analyzer_installer.is_none() {
+                contents = filter(&contents, "rust-analyzer");
             }
             if miri_installer.is_none() {
                 contents = filter(&contents, "miri");
@@ -1642,13 +1885,16 @@ impl Step for Extended {
         };
 
         if target.contains("apple-darwin") {
+            builder.info("building pkg installer");
             let pkg = tmp.join("pkg");
             let _ = fs::remove_dir_all(&pkg);
 
             let pkgbuild = |component: &str| {
                 let mut cmd = Command::new("pkgbuild");
-                cmd.arg("--identifier").arg(format!("org.rust-lang.{}", component))
-                    .arg("--scripts").arg(pkg.join(component))
+                cmd.arg("--identifier")
+                    .arg(format!("org.rust-lang.{}", component))
+                    .arg("--scripts")
+                    .arg(pkg.join(component))
                     .arg("--nopayload")
                     .arg(pkg.join(component).with_extension("pkg"));
                 builder.run(&mut cmd);
@@ -1656,8 +1902,10 @@ impl Step for Extended {
 
             let prepare = |name: &str| {
                 builder.create_dir(&pkg.join(name));
-                builder.cp_r(&work.join(&format!("{}-{}", pkgname(builder, name), target)),
-                        &pkg.join(name));
+                builder.cp_r(
+                    &work.join(&format!("{}-{}", pkgname(builder, name), target.triple)),
+                    &pkg.join(name),
+                );
                 builder.install(&etc.join("pkg/postinstall"), &pkg.join(name), 0o755);
                 pkgbuild(name);
             };
@@ -1666,12 +1914,13 @@ impl Step for Extended {
             prepare("rust-docs");
             prepare("rust-std");
             prepare("rust-analysis");
+            prepare("clippy");
 
             if rls_installer.is_some() {
                 prepare("rls");
             }
-            if clippy_installer.is_some() {
-                prepare("clippy");
+            if rust_analyzer_installer.is_some() {
+                prepare("rust-analyzer");
             }
             if miri_installer.is_some() {
                 prepare("miri");
@@ -1685,12 +1934,18 @@ impl Step for Extended {
             builder.create(&pkg.join("res/LICENSE.txt"), &license);
             builder.install(&etc.join("gfx/rust-logo.png"), &pkg.join("res"), 0o644);
             let mut cmd = Command::new("productbuild");
-            cmd.arg("--distribution").arg(xform(&etc.join("pkg/Distribution.xml")))
-                .arg("--resources").arg(pkg.join("res"))
-                .arg(distdir(builder).join(format!("{}-{}.pkg",
-                                                    pkgname(builder, "rust"),
-                                                    target)))
-                .arg("--package-path").arg(&pkg);
+            cmd.arg("--distribution")
+                .arg(xform(&etc.join("pkg/Distribution.xml")))
+                .arg("--resources")
+                .arg(pkg.join("res"))
+                .arg(distdir(builder).join(format!(
+                    "{}-{}.pkg",
+                    pkgname(builder, "rust"),
+                    target.triple
+                )))
+                .arg("--package-path")
+                .arg(&pkg);
+            let _time = timeit(builder);
             builder.run(&mut cmd);
         }
 
@@ -1701,9 +1956,11 @@ impl Step for Extended {
             let prepare = |name: &str| {
                 builder.create_dir(&exe.join(name));
                 let dir = if name == "rust-std" || name == "rust-analysis" {
-                    format!("{}-{}", name, target)
+                    format!("{}-{}", name, target.triple)
                 } else if name == "rls" {
                     "rls-preview".to_string()
+                } else if name == "rust-analyzer" {
+                    "rust-analyzer-preview".to_string()
                 } else if name == "clippy" {
                     "clippy-preview".to_string()
                 } else if name == "miri" {
@@ -1711,9 +1968,10 @@ impl Step for Extended {
                 } else {
                     name.to_string()
                 };
-                builder.cp_r(&work.join(&format!("{}-{}", pkgname(builder, name), target))
-                            .join(dir),
-                        &exe.join(name));
+                builder.cp_r(
+                    &work.join(&format!("{}-{}", pkgname(builder, name), target.triple)).join(dir),
+                    &exe.join(name),
+                );
                 builder.remove(&exe.join(name).join("manifest.in"));
             };
             prepare("rustc");
@@ -1721,11 +1979,12 @@ impl Step for Extended {
             prepare("rust-analysis");
             prepare("rust-docs");
             prepare("rust-std");
+            prepare("clippy");
             if rls_installer.is_some() {
                 prepare("rls");
             }
-            if clippy_installer.is_some() {
-                prepare("clippy");
+            if rust_analyzer_installer.is_some() {
+                prepare("rust-analyzer");
             }
             if miri_installer.is_some() {
                 prepare("miri");
@@ -1734,24 +1993,7 @@ impl Step for Extended {
                 prepare("rust-mingw");
             }
 
-            builder.install(&xform(&etc.join("exe/rust.iss")), &exe, 0o644);
-            builder.install(&etc.join("exe/modpath.iss"), &exe, 0o644);
-            builder.install(&etc.join("exe/upgrade.iss"), &exe, 0o644);
             builder.install(&etc.join("gfx/rust-logo.ico"), &exe, 0o644);
-            builder.create(&exe.join("LICENSE.txt"), &license);
-
-            // Generate exe installer
-            let mut cmd = Command::new("iscc");
-            cmd.arg("rust.iss")
-                .current_dir(&exe);
-            if target.contains("windows-gnu") {
-                cmd.arg("/dMINGW");
-            }
-            add_env(builder, &mut cmd, target);
-            builder.run(&mut cmd);
-            builder.install(&exe.join(format!("{}-{}.exe", pkgname(builder, "rust"), target)),
-                    &distdir(builder),
-                    0o755);
 
             // Generate msi installer
             let wix = PathBuf::from(env::var_os("WIX").unwrap());
@@ -1760,106 +2002,182 @@ impl Step for Extended {
             let light = wix.join("bin/light.exe");
 
             let heat_flags = ["-nologo", "-gg", "-sfrag", "-srd", "-sreg"];
-            builder.run(Command::new(&heat)
-                            .current_dir(&exe)
-                            .arg("dir")
-                            .arg("rustc")
-                            .args(&heat_flags)
-                            .arg("-cg").arg("RustcGroup")
-                            .arg("-dr").arg("Rustc")
-                            .arg("-var").arg("var.RustcDir")
-                            .arg("-out").arg(exe.join("RustcGroup.wxs")));
-            builder.run(Command::new(&heat)
-                            .current_dir(&exe)
-                            .arg("dir")
-                            .arg("rust-docs")
-                            .args(&heat_flags)
-                            .arg("-cg").arg("DocsGroup")
-                            .arg("-dr").arg("Docs")
-                            .arg("-var").arg("var.DocsDir")
-                            .arg("-out").arg(exe.join("DocsGroup.wxs"))
-                            .arg("-t").arg(etc.join("msi/squash-components.xsl")));
-            builder.run(Command::new(&heat)
-                            .current_dir(&exe)
-                            .arg("dir")
-                            .arg("cargo")
-                            .args(&heat_flags)
-                            .arg("-cg").arg("CargoGroup")
-                            .arg("-dr").arg("Cargo")
-                            .arg("-var").arg("var.CargoDir")
-                            .arg("-out").arg(exe.join("CargoGroup.wxs"))
-                            .arg("-t").arg(etc.join("msi/remove-duplicates.xsl")));
-            builder.run(Command::new(&heat)
-                            .current_dir(&exe)
-                            .arg("dir")
-                            .arg("rust-std")
-                            .args(&heat_flags)
-                            .arg("-cg").arg("StdGroup")
-                            .arg("-dr").arg("Std")
-                            .arg("-var").arg("var.StdDir")
-                            .arg("-out").arg(exe.join("StdGroup.wxs")));
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("rustc")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("RustcGroup")
+                    .arg("-dr")
+                    .arg("Rustc")
+                    .arg("-var")
+                    .arg("var.RustcDir")
+                    .arg("-out")
+                    .arg(exe.join("RustcGroup.wxs")),
+            );
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("rust-docs")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("DocsGroup")
+                    .arg("-dr")
+                    .arg("Docs")
+                    .arg("-var")
+                    .arg("var.DocsDir")
+                    .arg("-out")
+                    .arg(exe.join("DocsGroup.wxs"))
+                    .arg("-t")
+                    .arg(etc.join("msi/squash-components.xsl")),
+            );
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("cargo")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("CargoGroup")
+                    .arg("-dr")
+                    .arg("Cargo")
+                    .arg("-var")
+                    .arg("var.CargoDir")
+                    .arg("-out")
+                    .arg(exe.join("CargoGroup.wxs"))
+                    .arg("-t")
+                    .arg(etc.join("msi/remove-duplicates.xsl")),
+            );
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("rust-std")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("StdGroup")
+                    .arg("-dr")
+                    .arg("Std")
+                    .arg("-var")
+                    .arg("var.StdDir")
+                    .arg("-out")
+                    .arg(exe.join("StdGroup.wxs")),
+            );
             if rls_installer.is_some() {
-                builder.run(Command::new(&heat)
-                                .current_dir(&exe)
-                                .arg("dir")
-                                .arg("rls")
-                                .args(&heat_flags)
-                                .arg("-cg").arg("RlsGroup")
-                                .arg("-dr").arg("Rls")
-                                .arg("-var").arg("var.RlsDir")
-                                .arg("-out").arg(exe.join("RlsGroup.wxs"))
-                                .arg("-t").arg(etc.join("msi/remove-duplicates.xsl")));
+                builder.run(
+                    Command::new(&heat)
+                        .current_dir(&exe)
+                        .arg("dir")
+                        .arg("rls")
+                        .args(&heat_flags)
+                        .arg("-cg")
+                        .arg("RlsGroup")
+                        .arg("-dr")
+                        .arg("Rls")
+                        .arg("-var")
+                        .arg("var.RlsDir")
+                        .arg("-out")
+                        .arg(exe.join("RlsGroup.wxs"))
+                        .arg("-t")
+                        .arg(etc.join("msi/remove-duplicates.xsl")),
+                );
             }
-            if clippy_installer.is_some() {
-                builder.run(Command::new(&heat)
-                                .current_dir(&exe)
-                                .arg("dir")
-                                .arg("clippy")
-                                .args(&heat_flags)
-                                .arg("-cg").arg("ClippyGroup")
-                                .arg("-dr").arg("Clippy")
-                                .arg("-var").arg("var.ClippyDir")
-                                .arg("-out").arg(exe.join("ClippyGroup.wxs"))
-                                .arg("-t").arg(etc.join("msi/remove-duplicates.xsl")));
+            if rust_analyzer_installer.is_some() {
+                builder.run(
+                    Command::new(&heat)
+                        .current_dir(&exe)
+                        .arg("dir")
+                        .arg("rust-analyzer")
+                        .args(&heat_flags)
+                        .arg("-cg")
+                        .arg("RustAnalyzerGroup")
+                        .arg("-dr")
+                        .arg("RustAnalyzer")
+                        .arg("-var")
+                        .arg("var.RustAnalyzerDir")
+                        .arg("-out")
+                        .arg(exe.join("RustAnalyzerGroup.wxs"))
+                        .arg("-t")
+                        .arg(etc.join("msi/remove-duplicates.xsl")),
+                );
             }
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("clippy")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("ClippyGroup")
+                    .arg("-dr")
+                    .arg("Clippy")
+                    .arg("-var")
+                    .arg("var.ClippyDir")
+                    .arg("-out")
+                    .arg(exe.join("ClippyGroup.wxs"))
+                    .arg("-t")
+                    .arg(etc.join("msi/remove-duplicates.xsl")),
+            );
             if miri_installer.is_some() {
-                builder.run(Command::new(&heat)
-                                .current_dir(&exe)
-                                .arg("dir")
-                                .arg("miri")
-                                .args(&heat_flags)
-                                .arg("-cg").arg("MiriGroup")
-                                .arg("-dr").arg("Miri")
-                                .arg("-var").arg("var.MiriDir")
-                                .arg("-out").arg(exe.join("MiriGroup.wxs"))
-                                .arg("-t").arg(etc.join("msi/remove-duplicates.xsl")));
+                builder.run(
+                    Command::new(&heat)
+                        .current_dir(&exe)
+                        .arg("dir")
+                        .arg("miri")
+                        .args(&heat_flags)
+                        .arg("-cg")
+                        .arg("MiriGroup")
+                        .arg("-dr")
+                        .arg("Miri")
+                        .arg("-var")
+                        .arg("var.MiriDir")
+                        .arg("-out")
+                        .arg(exe.join("MiriGroup.wxs"))
+                        .arg("-t")
+                        .arg(etc.join("msi/remove-duplicates.xsl")),
+                );
             }
-            builder.run(Command::new(&heat)
-                            .current_dir(&exe)
-                            .arg("dir")
-                            .arg("rust-analysis")
-                            .args(&heat_flags)
-                            .arg("-cg").arg("AnalysisGroup")
-                            .arg("-dr").arg("Analysis")
-                            .arg("-var").arg("var.AnalysisDir")
-                            .arg("-out").arg(exe.join("AnalysisGroup.wxs"))
-                            .arg("-t").arg(etc.join("msi/remove-duplicates.xsl")));
+            builder.run(
+                Command::new(&heat)
+                    .current_dir(&exe)
+                    .arg("dir")
+                    .arg("rust-analysis")
+                    .args(&heat_flags)
+                    .arg("-cg")
+                    .arg("AnalysisGroup")
+                    .arg("-dr")
+                    .arg("Analysis")
+                    .arg("-var")
+                    .arg("var.AnalysisDir")
+                    .arg("-out")
+                    .arg(exe.join("AnalysisGroup.wxs"))
+                    .arg("-t")
+                    .arg(etc.join("msi/remove-duplicates.xsl")),
+            );
             if target.contains("windows-gnu") {
-                builder.run(Command::new(&heat)
-                                .current_dir(&exe)
-                                .arg("dir")
-                                .arg("rust-mingw")
-                                .args(&heat_flags)
-                                .arg("-cg").arg("GccGroup")
-                                .arg("-dr").arg("Gcc")
-                                .arg("-var").arg("var.GccDir")
-                                .arg("-out").arg(exe.join("GccGroup.wxs")));
+                builder.run(
+                    Command::new(&heat)
+                        .current_dir(&exe)
+                        .arg("dir")
+                        .arg("rust-mingw")
+                        .args(&heat_flags)
+                        .arg("-cg")
+                        .arg("GccGroup")
+                        .arg("-dr")
+                        .arg("Gcc")
+                        .arg("-var")
+                        .arg("var.GccDir")
+                        .arg("-out")
+                        .arg(exe.join("GccGroup.wxs")),
+                );
             }
 
             let candle = |input: &Path| {
-                let output = exe.join(input.file_stem().unwrap())
-                                .with_extension("wixobj");
-                let arch = if target.contains("x86_64") {"x64"} else {"x86"};
+                let output = exe.join(input.file_stem().unwrap()).with_extension("wixobj");
+                let arch = if target.contains("x86_64") { "x64" } else { "x86" };
                 let mut cmd = Command::new(&candle);
                 cmd.current_dir(&exe)
                     .arg("-nologo")
@@ -1868,16 +2186,19 @@ impl Step for Extended {
                     .arg("-dCargoDir=cargo")
                     .arg("-dStdDir=rust-std")
                     .arg("-dAnalysisDir=rust-analysis")
-                    .arg("-arch").arg(&arch)
-                    .arg("-out").arg(&output)
+                    .arg("-dClippyDir=clippy")
+                    .arg("-arch")
+                    .arg(&arch)
+                    .arg("-out")
+                    .arg(&output)
                     .arg(&input);
                 add_env(builder, &mut cmd, target);
 
                 if rls_installer.is_some() {
                     cmd.arg("-dRlsDir=rls");
                 }
-                if clippy_installer.is_some() {
-                    cmd.arg("-dClippyDir=clippy");
+                if rust_analyzer_installer.is_some() {
+                    cmd.arg("-dRustAnalyzerDir=rust-analyzer");
                 }
                 if miri_installer.is_some() {
                     cmd.arg("-dMiriDir=miri");
@@ -1894,11 +2215,12 @@ impl Step for Extended {
             candle("DocsGroup.wxs".as_ref());
             candle("CargoGroup.wxs".as_ref());
             candle("StdGroup.wxs".as_ref());
+            candle("ClippyGroup.wxs".as_ref());
             if rls_installer.is_some() {
                 candle("RlsGroup.wxs".as_ref());
             }
-            if clippy_installer.is_some() {
-                candle("ClippyGroup.wxs".as_ref());
+            if rust_analyzer_installer.is_some() {
+                candle("RustAnalyzerGroup.wxs".as_ref());
             }
             if miri_installer.is_some() {
                 candle("MiriGroup.wxs".as_ref());
@@ -1913,12 +2235,16 @@ impl Step for Extended {
             builder.install(&etc.join("gfx/banner.bmp"), &exe, 0o644);
             builder.install(&etc.join("gfx/dialogbg.bmp"), &exe, 0o644);
 
-            let filename = format!("{}-{}.msi", pkgname(builder, "rust"), target);
+            builder.info(&format!("building `msi` installer with {:?}", light));
+            let filename = format!("{}-{}.msi", pkgname(builder, "rust"), target.triple);
             let mut cmd = Command::new(&light);
             cmd.arg("-nologo")
-                .arg("-ext").arg("WixUIExtension")
-                .arg("-ext").arg("WixUtilExtension")
-                .arg("-out").arg(exe.join(&filename))
+                .arg("-ext")
+                .arg("WixUIExtension")
+                .arg("-ext")
+                .arg("WixUtilExtension")
+                .arg("-out")
+                .arg(exe.join(&filename))
                 .arg("rust.wixobj")
                 .arg("ui.wixobj")
                 .arg("rustwelcomedlg.wixobj")
@@ -1927,13 +2253,14 @@ impl Step for Extended {
                 .arg("CargoGroup.wixobj")
                 .arg("StdGroup.wixobj")
                 .arg("AnalysisGroup.wixobj")
+                .arg("ClippyGroup.wixobj")
                 .current_dir(&exe);
 
             if rls_installer.is_some() {
                 cmd.arg("RlsGroup.wixobj");
             }
-            if clippy_installer.is_some() {
-                cmd.arg("ClippyGroup.wixobj");
+            if rust_analyzer_installer.is_some() {
+                cmd.arg("RustAnalyzerGroup.wixobj");
             }
             if miri_installer.is_some() {
                 cmd.arg("MiriGroup.wixobj");
@@ -1945,6 +2272,7 @@ impl Step for Extended {
             // ICE57 wrongly complains about the shortcuts
             cmd.arg("-sice:ICE57");
 
+            let _time = timeit(builder);
             builder.run(&mut cmd);
 
             if !builder.config.dry_run {
@@ -1954,32 +2282,30 @@ impl Step for Extended {
     }
 }
 
-fn add_env(builder: &Builder<'_>, cmd: &mut Command, target: Interned<String>) {
-    let mut parts = channel::CFG_RELEASE_NUM.split('.');
+fn add_env(builder: &Builder<'_>, cmd: &mut Command, target: TargetSelection) {
+    let mut parts = builder.version.split('.');
     cmd.env("CFG_RELEASE_INFO", builder.rust_version())
-       .env("CFG_RELEASE_NUM", channel::CFG_RELEASE_NUM)
-       .env("CFG_RELEASE", builder.rust_release())
-       .env("CFG_VER_MAJOR", parts.next().unwrap())
-       .env("CFG_VER_MINOR", parts.next().unwrap())
-       .env("CFG_VER_PATCH", parts.next().unwrap())
-       .env("CFG_VER_BUILD", "0") // just needed to build
-       .env("CFG_PACKAGE_VERS", builder.rust_package_vers())
-       .env("CFG_PACKAGE_NAME", pkgname(builder, "rust"))
-       .env("CFG_BUILD", target)
-       .env("CFG_CHANNEL", &builder.config.channel);
+        .env("CFG_RELEASE_NUM", &builder.version)
+        .env("CFG_RELEASE", builder.rust_release())
+        .env("CFG_VER_MAJOR", parts.next().unwrap())
+        .env("CFG_VER_MINOR", parts.next().unwrap())
+        .env("CFG_VER_PATCH", parts.next().unwrap())
+        .env("CFG_VER_BUILD", "0") // just needed to build
+        .env("CFG_PACKAGE_VERS", builder.rust_package_vers())
+        .env("CFG_PACKAGE_NAME", pkgname(builder, "rust"))
+        .env("CFG_BUILD", target.triple)
+        .env("CFG_CHANNEL", &builder.config.channel);
 
     if target.contains("windows-gnu") {
-       cmd.env("CFG_MINGW", "1")
-          .env("CFG_ABI", "GNU");
+        cmd.env("CFG_MINGW", "1").env("CFG_ABI", "GNU");
     } else {
-       cmd.env("CFG_MINGW", "0")
-          .env("CFG_ABI", "MSVC");
+        cmd.env("CFG_MINGW", "0").env("CFG_ABI", "MSVC");
     }
 
     if target.contains("x86_64") {
-       cmd.env("CFG_PLATFORM", "x64");
+        cmd.env("CFG_PLATFORM", "x64");
     } else {
-       cmd.env("CFG_PLATFORM", "x86");
+        cmd.env("CFG_PLATFORM", "x86");
     }
 }
 
@@ -1999,6 +2325,8 @@ impl Step for HashSign {
     }
 
     fn run(self, builder: &Builder<'_>) {
+        // This gets called by `promote-release`
+        // (https://github.com/rust-lang/rust-central-station/tree/master/promote-release).
         let mut cmd = builder.tool_cmd(Tool::BuildManifest);
         if builder.config.dry_run {
             return;
@@ -2009,25 +2337,23 @@ impl Step for HashSign {
         let addr = builder.config.dist_upload_addr.as_ref().unwrap_or_else(|| {
             panic!("\n\nfailed to specify `dist.upload-addr` in `config.toml`\n\n")
         });
-        let file = builder.config.dist_gpg_password_file.as_ref().unwrap_or_else(|| {
-            panic!("\n\nfailed to specify `dist.gpg-password-file` in `config.toml`\n\n")
-        });
-        let pass = t!(fs::read_to_string(&file));
+        let pass = if env::var("BUILD_MANIFEST_DISABLE_SIGNING").is_err() {
+            let file = builder.config.dist_gpg_password_file.as_ref().unwrap_or_else(|| {
+                panic!("\n\nfailed to specify `dist.gpg-password-file` in `config.toml`\n\n")
+            });
+            t!(fs::read_to_string(&file))
+        } else {
+            String::new()
+        };
 
         let today = output(Command::new("date").arg("+%Y-%m-%d"));
 
         cmd.arg(sign);
         cmd.arg(distdir(builder));
         cmd.arg(today.trim());
-        cmd.arg(builder.rust_package_vers());
         cmd.arg(addr);
-        cmd.arg(builder.package_vers(&builder.release_num("cargo")));
-        cmd.arg(builder.package_vers(&builder.release_num("rls")));
-        cmd.arg(builder.package_vers(&builder.release_num("clippy")));
-        cmd.arg(builder.package_vers(&builder.release_num("miri")));
-        cmd.arg(builder.package_vers(&builder.release_num("rustfmt")));
-        cmd.arg(builder.llvm_tools_package_vers());
-        cmd.arg(builder.lldb_package_vers());
+        cmd.arg(&builder.config.channel);
+        cmd.env("BUILD_MANIFEST_LEGACY", "1");
 
         builder.create_dir(&distdir(builder));
 
@@ -2038,45 +2364,54 @@ impl Step for HashSign {
     }
 }
 
-// Maybe add libLLVM.so to the lib-dir. It will only have been built if
-// LLVM tools are linked dynamically.
-// Note: This function does no yet support Windows but we also don't support
-//       linking LLVM tools dynamically on Windows yet.
-pub fn maybe_install_llvm_dylib(builder: &Builder<'_>,
-                                target: Interned<String>,
-                                sysroot: &Path) {
-    let src_libdir = builder
-        .llvm_out(target)
-        .join("lib");
-    let dst_libdir = sysroot.join("lib/rustlib").join(&*target).join("lib");
-    t!(fs::create_dir_all(&dst_libdir));
-
+/// Maybe add libLLVM.so to the given destination lib-dir. It will only have
+/// been built if LLVM tools are linked dynamically.
+///
+/// Note: This function does not yet support Windows, but we also don't support
+///       linking LLVM tools dynamically on Windows yet.
+fn maybe_install_llvm(builder: &Builder<'_>, target: TargetSelection, dst_libdir: &Path) {
+    if !builder.config.llvm_link_shared {
+        // We do not need to copy LLVM files into the sysroot if it is not
+        // dynamically linked; it is already included into librustc_llvm
+        // statically.
+        return;
+    }
+
+    // On macOS, rustc (and LLVM tools) link to an unversioned libLLVM.dylib
+    // instead of libLLVM-11-rust-....dylib, as on linux. It's not entirely
+    // clear why this is the case, though. llvm-config will emit the versioned
+    // paths and we don't want those in the sysroot (as we're expecting
+    // unversioned paths).
     if target.contains("apple-darwin") {
+        let src_libdir = builder.llvm_out(target).join("lib");
         let llvm_dylib_path = src_libdir.join("libLLVM.dylib");
         if llvm_dylib_path.exists() {
-            builder.install(&llvm_dylib_path, &dst_libdir, 0o644);
+            builder.install(&llvm_dylib_path, dst_libdir, 0o644);
+        }
+    } else if let Ok(llvm_config) = crate::native::prebuilt_llvm_config(builder, target) {
+        let files = output(Command::new(llvm_config).arg("--libfiles"));
+        for file in files.lines() {
+            builder.install(Path::new(file), dst_libdir, 0o644);
         }
-        return
     }
+}
 
-    // Usually libLLVM.so is a symlink to something like libLLVM-6.0.so.
-    // Since tools link to the latter rather than the former, we have to
-    // follow the symlink to find out what to distribute.
-    let llvm_dylib_path = src_libdir.join("libLLVM.so");
-    if llvm_dylib_path.exists() {
-        let llvm_dylib_path = llvm_dylib_path.canonicalize().unwrap_or_else(|e| {
-            panic!("dist: Error calling canonicalize path `{}`: {}",
-                   llvm_dylib_path.display(), e);
-        });
-
+/// Maybe add libLLVM.so to the target lib-dir for linking.
+pub fn maybe_install_llvm_target(builder: &Builder<'_>, target: TargetSelection, sysroot: &Path) {
+    let dst_libdir = sysroot.join("lib/rustlib").join(&*target.triple).join("lib");
+    maybe_install_llvm(builder, target, &dst_libdir);
+}
 
-        builder.install(&llvm_dylib_path, &dst_libdir, 0o644);
-    }
+/// Maybe add libLLVM.so to the runtime lib-dir for rustc itself.
+pub fn maybe_install_llvm_runtime(builder: &Builder<'_>, target: TargetSelection, sysroot: &Path) {
+    let dst_libdir =
+        sysroot.join(builder.sysroot_libdir_relative(Compiler { stage: 1, host: target }));
+    maybe_install_llvm(builder, target, &dst_libdir);
 }
 
 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
 pub struct LlvmTools {
-    pub target: Interned<String>,
+    pub target: TargetSelection,
 }
 
 impl Step for LlvmTools {
@@ -2088,9 +2423,7 @@ impl Step for LlvmTools {
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(LlvmTools {
-            target: run.target,
-        });
+        run.builder.ensure(LlvmTools { target: run.target });
     }
 
     fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
@@ -2100,13 +2433,13 @@ impl Step for LlvmTools {
         /* run only if llvm-config isn't used */
         if let Some(config) = builder.config.target_config.get(&target) {
             if let Some(ref _s) = config.llvm_config {
-                builder.info(&format!("Skipping LlvmTools ({}): external LLVM",
-                    target));
+                builder.info(&format!("Skipping LlvmTools ({}): external LLVM", target));
                 return None;
             }
         }
 
         builder.info(&format!("Dist LlvmTools ({})", target));
+        let _time = timeit(builder);
         let src = builder.src.join("src/llvm-project/llvm");
         let name = pkgname(builder, "llvm-tools");
 
@@ -2115,18 +2448,20 @@ impl Step for LlvmTools {
         drop(fs::remove_dir_all(&image));
 
         // Prepare the image directory
-        let src_bindir = builder
-            .llvm_out(target)
-            .join("bin");
-        let dst_bindir = image.join("lib/rustlib")
-            .join(&*target)
-            .join("bin");
+        let src_bindir = builder.llvm_out(target).join("bin");
+        let dst_bindir = image.join("lib/rustlib").join(&*target.triple).join("bin");
         t!(fs::create_dir_all(&dst_bindir));
         for tool in LLVM_TOOLS {
-            let exe = src_bindir.join(exe(tool, &target));
+            let exe = src_bindir.join(exe(tool, target));
             builder.install(&exe, &dst_bindir, 0o755);
         }
 
+        // Copy libLLVM.so to the target lib dir as well, so the RPATH like
+        // `$ORIGIN/../lib` can find it. It may also be used as a dependency
+        // of `rustc-dev` to support the inherited `-lLLVM` when using the
+        // compiler libraries.
+        maybe_install_llvm_target(builder, target, &image);
+
         // Prepare the overlay
         let overlay = tmp.join("llvm-tools-overlay");
         drop(fs::remove_dir_all(&overlay));
@@ -2141,134 +2476,177 @@ impl Step for LlvmTools {
             .arg("--product-name=Rust")
             .arg("--rel-manifest-dir=rustlib")
             .arg("--success-message=llvm-tools-installed.")
-            .arg("--image-dir").arg(&image)
-            .arg("--work-dir").arg(&tmpdir(builder))
-            .arg("--output-dir").arg(&distdir(builder))
-            .arg("--non-installed-overlay").arg(&overlay)
-            .arg(format!("--package-name={}-{}", name, target))
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
             .arg("--legacy-manifest-dirs=rustlib,cargo")
             .arg("--component-name=llvm-tools-preview");
 
-
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
     }
 }
 
+// Tarball intended for internal consumption to ease rustc/std development.
+//
+// Should not be considered stable by end users.
 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
-pub struct Lldb {
-    pub target: Interned<String>,
+pub struct RustDev {
+    pub target: TargetSelection,
 }
 
-impl Step for Lldb {
+impl Step for RustDev {
     type Output = Option<PathBuf>;
-    const ONLY_HOSTS: bool = true;
     const DEFAULT: bool = true;
+    const ONLY_HOSTS: bool = true;
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.path("src/llvm-project/lldb").path("src/tools/lldb")
+        run.path("rust-dev")
     }
 
     fn make_run(run: RunConfig<'_>) {
-        run.builder.ensure(Lldb {
-            target: run.target,
-        });
+        run.builder.ensure(RustDev { target: run.target });
     }
 
     fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
         let target = self.target;
 
-        if builder.config.dry_run {
-            return None;
-        }
-
-        let bindir = builder
-            .llvm_out(target)
-            .join("bin");
-        let lldb_exe = bindir.join(exe("lldb", &target));
-        if !lldb_exe.exists() {
-            return None;
+        /* run only if llvm-config isn't used */
+        if let Some(config) = builder.config.target_config.get(&target) {
+            if let Some(ref _s) = config.llvm_config {
+                builder.info(&format!("Skipping RustDev ({}): external LLVM", target));
+                return None;
+            }
         }
 
-        builder.info(&format!("Dist Lldb ({})", target));
-        let src = builder.src.join("src/llvm-project/lldb");
-        let name = pkgname(builder, "lldb");
+        builder.info(&format!("Dist RustDev ({})", target));
+        let _time = timeit(builder);
+        let src = builder.src.join("src/llvm-project/llvm");
+        let name = pkgname(builder, "rust-dev");
 
         let tmp = tmpdir(builder);
-        let image = tmp.join("lldb-image");
+        let image = tmp.join("rust-dev-image");
         drop(fs::remove_dir_all(&image));
 
         // Prepare the image directory
-        let root = image.join("lib/rustlib").join(&*target);
-        let dst = root.join("bin");
-        t!(fs::create_dir_all(&dst));
-        for program in &["lldb", "lldb-argdumper", "lldb-mi", "lldb-server"] {
-            let exe = bindir.join(exe(program, &target));
-            builder.install(&exe, &dst, 0o755);
-        }
+        let dst_bindir = image.join("bin");
+        t!(fs::create_dir_all(&dst_bindir));
 
-        // The libraries.
-        let libdir = builder.llvm_out(target).join("lib");
-        let dst = root.join("lib");
-        t!(fs::create_dir_all(&dst));
-        for entry in t!(fs::read_dir(&libdir)) {
-            let entry = entry.unwrap();
-            if let Ok(name) = entry.file_name().into_string() {
-                if name.starts_with("liblldb.") && !name.ends_with(".a") {
-                    if t!(entry.file_type()).is_symlink() {
-                        builder.copy_to_folder(&entry.path(), &dst);
-                    } else {
-                       builder.install(&entry.path(), &dst, 0o755);
-                    }
-                }
-            }
-        }
+        let exe = builder.llvm_out(target).join("bin").join(exe("llvm-config", target));
+        builder.install(&exe, &dst_bindir, 0o755);
+        builder.install(&builder.llvm_filecheck(target), &dst_bindir, 0o755);
 
-        // The lldb scripts might be installed in lib/python$version
-        // or in lib64/python$version.  If lib64 exists, use it;
-        // otherwise lib.
-        let libdir = builder.llvm_out(target).join("lib64");
-        let (libdir, libdir_name) = if libdir.exists() {
-            (libdir, "lib64")
-        } else {
-            (builder.llvm_out(target).join("lib"), "lib")
-        };
-        for entry in t!(fs::read_dir(&libdir)) {
-            let entry = t!(entry);
-            if let Ok(name) = entry.file_name().into_string() {
-                if name.starts_with("python") {
-                    let dst = root.join(libdir_name)
-                        .join(entry.file_name());
-                    t!(fs::create_dir_all(&dst));
-                    builder.cp_r(&entry.path(), &dst);
-                    break;
-                }
-            }
-        }
+        // Copy the include directory as well; needed mostly to build
+        // librustc_llvm properly (e.g., llvm-config.h is in here). But also
+        // just broadly useful to be able to link against the bundled LLVM.
+        builder.cp_r(&builder.llvm_out(target).join("include"), &image.join("include"));
+
+        // Copy libLLVM.so to the target lib dir as well, so the RPATH like
+        // `$ORIGIN/../lib` can find it. It may also be used as a dependency
+        // of `rustc-dev` to support the inherited `-lLLVM` when using the
+        // compiler libraries.
+        maybe_install_llvm(builder, target, &image.join("lib"));
 
         // Prepare the overlay
-        let overlay = tmp.join("lldb-overlay");
+        let overlay = tmp.join("rust-dev-overlay");
         drop(fs::remove_dir_all(&overlay));
         builder.create_dir(&overlay);
+        builder.install(&src.join("README.txt"), &overlay, 0o644);
         builder.install(&src.join("LICENSE.TXT"), &overlay, 0o644);
-        builder.create(&overlay.join("version"), &builder.lldb_vers());
+        builder.create(&overlay.join("version"), &builder.rust_version());
 
         // Generate the installer tarball
         let mut cmd = rust_installer(builder);
         cmd.arg("generate")
             .arg("--product-name=Rust")
             .arg("--rel-manifest-dir=rustlib")
-            .arg("--success-message=lldb-installed.")
-            .arg("--image-dir").arg(&image)
-            .arg("--work-dir").arg(&tmpdir(builder))
-            .arg("--output-dir").arg(&distdir(builder))
-            .arg("--non-installed-overlay").arg(&overlay)
-            .arg(format!("--package-name={}-{}", name, target))
+            .arg("--success-message=rust-dev-installed.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, target.triple))
             .arg("--legacy-manifest-dirs=rustlib,cargo")
-            .arg("--component-name=lldb-preview");
+            .arg("--component-name=rust-dev");
+
+        builder.run(&mut cmd);
+        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target.triple)))
+    }
+}
+
+/// Tarball containing a prebuilt version of the build-manifest tool, intented to be used by the
+/// release process to avoid cloning the monorepo and building stuff.
+///
+/// Should not be considered stable by end users.
+#[derive(Clone, Debug, Eq, Hash, PartialEq)]
+pub struct BuildManifest {
+    pub target: TargetSelection,
+}
+
+impl Step for BuildManifest {
+    type Output = PathBuf;
+    const DEFAULT: bool = false;
+    const ONLY_HOSTS: bool = true;
+
+    fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
+        run.path("src/tools/build-manifest")
+    }
+
+    fn make_run(run: RunConfig<'_>) {
+        run.builder.ensure(BuildManifest { target: run.target });
+    }
+
+    fn run(self, builder: &Builder<'_>) -> PathBuf {
+        let build_manifest = builder.tool_exe(Tool::BuildManifest);
+
+        let name = pkgname(builder, "build-manifest");
+        let tmp = tmpdir(builder);
+
+        // Prepare the image.
+        let image = tmp.join("build-manifest-image");
+        let image_bin = image.join("bin");
+        let _ = fs::remove_dir_all(&image);
+        t!(fs::create_dir_all(&image_bin));
+        builder.install(&build_manifest, &image_bin, 0o755);
+
+        // Prepare the overlay.
+        let overlay = tmp.join("build-manifest-overlay");
+        let _ = fs::remove_dir_all(&overlay);
+        builder.create_dir(&overlay);
+        builder.create(&overlay.join("version"), &builder.rust_version());
+        for file in &["COPYRIGHT", "LICENSE-APACHE", "LICENSE-MIT", "README.md"] {
+            builder.install(&builder.src.join(file), &overlay, 0o644);
+        }
 
+        // Create the final tarball.
+        let mut cmd = rust_installer(builder);
+        cmd.arg("generate")
+            .arg("--product-name=Rust")
+            .arg("--rel-manifest-dir=rustlib")
+            .arg("--success-message=build-manifest installed.")
+            .arg("--image-dir")
+            .arg(&image)
+            .arg("--work-dir")
+            .arg(&tmpdir(builder))
+            .arg("--output-dir")
+            .arg(&distdir(builder))
+            .arg("--non-installed-overlay")
+            .arg(&overlay)
+            .arg(format!("--package-name={}-{}", name, self.target.triple))
+            .arg("--legacy-manifest-dirs=rustlib,cargo")
+            .arg("--component-name=build-manifest");
 
         builder.run(&mut cmd);
-        Some(distdir(builder).join(format!("{}-{}.tar.gz", name, target)))
+        distdir(builder).join(format!("{}-{}.tar.gz", name, self.target.triple))
     }
 }