Merge pull request #7 from rust-lang/master

update from origin 2020-06-27

Author: richkadel

Cargo.lock

@@ -434,9 +434,9 @@ dependencies = [
 
 [[package]]
 name = "chalk-derive"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b9bd01eab87277d973183a1d2e56bace1c11f8242c52c20636fb7dddf343ac9"
+checksum = "d463e01905d607e181de72e8608721d3269f29176c9a14ce037011316ae7131d"
 dependencies = [
  "proc-macro2 1.0.3",
  "quote 1.0.2",
@@ -446,30 +446,31 @@ dependencies = [
 
 [[package]]
 name = "chalk-engine"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c7a637c3d17ed555aef16e16952a5d1e127bd55178cc30be22afeb92da90c7d"
+checksum = "efaf428f5398d36284f79690cf988762b7c091249f50a6c11db613a46c057000"
 dependencies = [
  "chalk-derive",
  "chalk-ir",
  "rustc-hash",
+ "tracing",
 ]
 
 [[package]]
 name = "chalk-ir"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "595e5735ded16c3f3dc348f7b15bbb2521a0080b1863cac38ad5271589944670"
+checksum = "fd3fdc1e9f68498ffe80f4a23b0b95f1ca6fb21d5a4c9b0c085fab3ca712bdbe"
 dependencies = [
  "chalk-derive",
  "lazy_static",
 ]
 
 [[package]]
 name = "chalk-solve"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d9d938139db425867a30cc0cfec0269406d8238d0571d829041eaa7a8455d11"
+checksum = "5b9fd4102807b7ebe8fb034fa0f488c5656e1966d3261b558b81a08d519cdb29"
 dependencies = [
  "chalk-derive",
  "chalk-engine",
@@ -478,6 +479,7 @@ dependencies = [
  "itertools 0.9.0",
  "petgraph",
  "rustc-hash",
+ "tracing",
 ]
 
 [[package]]
@@ -5332,6 +5334,37 @@ dependencies = [
  "syn 0.15.35",
 ]
 
+[[package]]
+name = "tracing"
+version = "0.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a41f40ed0e162c911ac6fcb53ecdc8134c46905fdbbae8c50add462a538b495f"
+dependencies = [
+ "cfg-if",
+ "tracing-attributes",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99bbad0de3fd923c9c3232ead88510b783e5a4d16a6154adffa3d53308de984c"
+dependencies = [
+ "proc-macro2 1.0.3",
+ "quote 1.0.2",
+ "syn 1.0.11",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0aa83a9a47081cd522c09c81b31aec2c9273424976f922ad61c053b58350b715"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.2"
@@ -5405,15 +5438,15 @@ dependencies = [
 
 [[package]]
 name = "unicode-script"
-version = "0.4.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b2c5c29e805da6817f5af6a627d65adb045cebf05cccd5a3493d6109454391c"
+checksum = "58b33414ea8db4b7ea0343548dbdc31d27aef06beacf7044a87e564d9b0feb7d"
 
 [[package]]
 name = "unicode-security"
-version = "0.0.3"
+version = "0.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5f9011bbed9c13372bc8df618b55a38138445199caf3b61d432c6859c36dee0"
+checksum = "5d87c28edc5b263377e448d6cdcb935c06b95413d8013ba6fae470558ccab18f"
 dependencies = [
  "unicode-normalization",
  "unicode-script",

config.toml.example

@@ -118,18 +118,24 @@
 # nightlies are already produced for. The current platform must be able to run
 # binaries of this build triple and the nightly will be used to bootstrap the
 # first compiler.
-#build = "x86_64-unknown-linux-gnu"    # defaults to your host platform
+#
+# Defaults to host platform
+#build = "x86_64-unknown-linux-gnu"
 
 # In addition to the build triple, other triples to produce full compiler
 # toolchains for. Each of these triples will be bootstrapped from the build
 # triple and then will continue to bootstrap themselves. This platform must
 # currently be able to run all of the triples provided here.
-#host = ["x86_64-unknown-linux-gnu"]   # defaults to just the build triple
+#
+# Defaults to just the build triple
+#host = ["x86_64-unknown-linux-gnu"]
 
 # In addition to all host triples, other triples to produce the standard library
 # for. Each host triple will be used to produce a copy of the standard library
 # for each target triple.
-#target = ["x86_64-unknown-linux-gnu"] # defaults to just the build triple
+#
+# Defaults to just the build triple
+#target = ["x86_64-unknown-linux-gnu"]
 
 # Use this directory to store build artifacts.
 # You can use "$ROOT" to indicate the root of the git repository.
@@ -174,7 +180,7 @@
 # Python interpreter to use for various tasks throughout the build, notably
 # rustdoc tests, the lldb python interpreter, and some dist bits and pieces.
 #
-# Defaults to the Python interpreter used to execute x.py.
+# Defaults to the Python interpreter used to execute x.py
 #python = "python"
 
 # Force Cargo to check that Cargo.lock describes the precise dependency
@@ -313,11 +319,15 @@
 
 # Whether or not debug assertions are enabled for the compiler and standard
 # library.
-#debug-assertions = debug
+#
+# Defaults to rust.debug value
+#debug-assertions = false
 
 # Whether or not debug assertions are enabled for the standard library.
 # Overrides the `debug-assertions` option, if defined.
-#debug-assertions-std = debug-assertions
+#
+# Defaults to rust.debug-assertions value
+#debug-assertions-std = false
 
 # Debuginfo level for most of Rust code, corresponds to the `-C debuginfo=N` option of `rustc`.
 # `0` - no debug info
@@ -326,16 +336,24 @@
 # Can be overridden for specific subsets of Rust code (rustc, std or tools).
 # Debuginfo for tests run with compiletest is not controlled by this option
 # and needs to be enabled separately with `debuginfo-level-tests`.
-#debuginfo-level = if debug { 2 } else { 0 }
+#
+# Defaults to 2 if debug is true
+#debuginfo-level = 0
 
 # Debuginfo level for the compiler.
-#debuginfo-level-rustc = debuginfo-level
+#
+# Defaults to rust.debuginfo-level value
+#debuginfo-level-rustc = 0
 
 # Debuginfo level for the standard library.
-#debuginfo-level-std = debuginfo-level
+#
+# Defaults to rust.debuginfo-level value
+#debuginfo-level-std = 0
 
 # Debuginfo level for the tools.
-#debuginfo-level-tools = debuginfo-level
+#
+# Defaults to rust.debuginfo-level value
+#debuginfo-level-tools = 0
 
 # Debuginfo level for the test suites run with compiletest.
 # FIXME(#61117): Some tests fail when this option is enabled.

src/bootstrap/bootstrap.py

@@ -184,6 +184,7 @@ def default_build_triple():
     ostype = require(["uname", "-s"], exit=required)
     cputype = require(['uname', '-m'], exit=required)
 
+    # If we do not have `uname`, assume Windows.
     if ostype is None or cputype is None:
         return 'x86_64-pc-windows-msvc'
 
@@ -236,6 +237,11 @@ def default_build_triple():
         if ostype.endswith('WOW64'):
             cputype = 'x86_64'
         ostype = 'pc-windows-gnu'
+    elif sys.platform == 'win32':
+        # Some Windows platforms might have a `uname` command that returns a
+        # non-standard string (e.g. gnuwin32 tools returns `windows32`). In
+        # these cases, fall back to using sys.platform.
+        return 'x86_64-pc-windows-msvc'
     else:
         err = "unknown OS type: {}".format(ostype)
         sys.exit(err)

src/bootstrap/builder.rs

@@ -23,7 +23,7 @@ use crate::install;
 use crate::native;
 use crate::run;
 use crate::test;
-use crate::tool;
+use crate::tool::{self, SourceType};
 use crate::util::{self, add_dylib_path, add_link_lib_path, exe, libdir};
 use crate::{Build, DocTests, GitRepo, Mode};
 
@@ -759,6 +759,7 @@ impl<'a> Builder<'a> {
         &self,
         compiler: Compiler,
         mode: Mode,
+        source_type: SourceType,
         target: Interned<String>,
         cmd: &str,
     ) -> Cargo {
@@ -1125,7 +1126,7 @@ impl<'a> Builder<'a> {
 
         cargo.env("RUSTC_VERBOSE", self.verbosity.to_string());
 
-        if !mode.is_tool() {
+        if source_type == SourceType::InTree {
             // When extending this list, add the new lints to the RUSTFLAGS of the
             // build_bootstrap function of src/bootstrap/bootstrap.py as well as
             // some code doesn't go through this `rustc` wrapper.

src/bootstrap/check.rs

@@ -44,7 +44,13 @@ impl Step for Std {
         let target = self.target;
         let compiler = builder.compiler(0, builder.config.build);
 
-        let mut cargo = builder.cargo(compiler, Mode::Std, target, cargo_subcommand(builder.kind));
+        let mut cargo = builder.cargo(
+            compiler,
+            Mode::Std,
+            SourceType::InTree,
+            target,
+            cargo_subcommand(builder.kind),
+        );
         std_cargo(builder, target, compiler.stage, &mut cargo);
 
         builder.info(&format!("Checking std artifacts ({} -> {})", &compiler.host, target));
@@ -92,8 +98,13 @@ impl Step for Rustc {
 
         builder.ensure(Std { target });
 
-        let mut cargo =
-            builder.cargo(compiler, Mode::Rustc, target, cargo_subcommand(builder.kind));
+        let mut cargo = builder.cargo(
+            compiler,
+            Mode::Rustc,
+            SourceType::InTree,
+            target,
+            cargo_subcommand(builder.kind),
+        );
         rustc_cargo(builder, &mut cargo, target);
 
         builder.info(&format!("Checking compiler artifacts ({} -> {})", &compiler.host, target));
@@ -113,7 +124,7 @@ impl Step for Rustc {
 }
 
 macro_rules! tool_check_step {
-    ($name:ident, $path:expr) => {
+    ($name:ident, $path:expr, $source_type:expr) => {
         #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
         pub struct $name {
             pub target: Interned<String>,
@@ -145,7 +156,7 @@ macro_rules! tool_check_step {
                     target,
                     cargo_subcommand(builder.kind),
                     $path,
-                    SourceType::InTree,
+                    $source_type,
                     &[],
                 );
 
@@ -184,8 +195,12 @@ macro_rules! tool_check_step {
     };
 }
 
-tool_check_step!(Rustdoc, "src/tools/rustdoc");
-tool_check_step!(Clippy, "src/tools/clippy");
+tool_check_step!(Rustdoc, "src/tools/rustdoc", SourceType::InTree);
+// Clippy is a hybrid. It is an external tool, but uses a git subtree instead
+// of a submodule. Since the SourceType only drives the deny-warnings
+// behavior, treat it as in-tree so that any new warnings in clippy will be
+// rejected.
+tool_check_step!(Clippy, "src/tools/clippy", SourceType::InTree);
 
 /// Cargo's output path for the standard library in a given stage, compiled
 /// by a particular compiler for the specified target.

src/bootstrap/compile.rs

@@ -20,14 +20,14 @@ use filetime::FileTime;
 use serde::Deserialize;
 
 use crate::builder::Cargo;
+use crate::builder::{Builder, Kind, RunConfig, ShouldRun, Step};
+use crate::cache::{Interned, INTERNER};
 use crate::dist;
 use crate::native;
+use crate::tool::SourceType;
 use crate::util::{exe, is_dylib, symlink_dir};
 use crate::{Compiler, DependencyType, GitRepo, Mode};
 
-use crate::builder::{Builder, Kind, RunConfig, ShouldRun, Step};
-use crate::cache::{Interned, INTERNER};
-
 #[derive(Debug, PartialOrd, Ord, Copy, Clone, PartialEq, Eq, Hash)]
 pub struct Std {
     pub target: Interned<String>,
@@ -87,7 +87,7 @@ impl Step for Std {
         target_deps.extend(copy_third_party_objects(builder, &compiler, target));
         target_deps.extend(copy_self_contained_objects(builder, &compiler, target));
 
-        let mut cargo = builder.cargo(compiler, Mode::Std, target, "build");
+        let mut cargo = builder.cargo(compiler, Mode::Std, SourceType::InTree, target, "build");
         std_cargo(builder, target, compiler.stage, &mut cargo);
 
         builder.info(&format!(
@@ -131,26 +131,13 @@ fn copy_third_party_objects(
     compiler: &Compiler,
     target: Interned<String>,
 ) -> Vec<(PathBuf, DependencyType)> {
-    let libdir = builder.sysroot_libdir(*compiler, target);
     let mut target_deps = vec![];
 
-    // Copies libunwind.a compiled to be linked with x86_64-fortanix-unknown-sgx.
-    //
-    // This target needs to be linked to Fortanix's port of llvm's libunwind.
-    // libunwind requires support for rwlock and printing to stderr,
-    // which is provided by std for this target.
+    // FIXME: remove this in 2021
     if target == "x86_64-fortanix-unknown-sgx" {
-        let src_path_env = "X86_FORTANIX_SGX_LIBS";
-        let src =
-            env::var(src_path_env).unwrap_or_else(|_| panic!("{} not found in env", src_path_env));
-        copy_and_stamp(
-            builder,
-            &*libdir,
-            Path::new(&src),
-            "libunwind.a",
-            &mut target_deps,
-            DependencyType::Target,
-        );
+        if env::var_os("X86_FORTANIX_SGX_LIBS").is_some() {
+            builder.info("Warning: X86_FORTANIX_SGX_LIBS environment variable is ignored, libunwind is now compiled as part of rustbuild");
+        }
     }
 
     if builder.config.sanitizers && compiler.stage != 0 {
@@ -513,7 +500,7 @@ impl Step for Rustc {
             target: builder.config.build,
         });
 
-        let mut cargo = builder.cargo(compiler, Mode::Rustc, target, "build");
+        let mut cargo = builder.cargo(compiler, Mode::Rustc, SourceType::InTree, target, "build");
         rustc_cargo(builder, &mut cargo, target);
 
         builder.info(&format!(

src/bootstrap/doc.rs

@@ -435,7 +435,8 @@ impl Step for Std {
         t!(fs::copy(builder.src.join("src/doc/rust.css"), out.join("rust.css")));
 
         let run_cargo_rustdoc_for = |package: &str| {
-            let mut cargo = builder.cargo(compiler, Mode::Std, target, "rustdoc");
+            let mut cargo =
+                builder.cargo(compiler, Mode::Std, SourceType::InTree, target, "rustdoc");
             compile::std_cargo(builder, target, compiler.stage, &mut cargo);
 
             // Keep a whitelist so we do not build internal stdlib crates, these will be
@@ -534,7 +535,7 @@ impl Step for Rustc {
         t!(symlink_dir_force(&builder.config, &out, &out_dir));
 
         // Build cargo command.
-        let mut cargo = builder.cargo(compiler, Mode::Rustc, target, "doc");
+        let mut cargo = builder.cargo(compiler, Mode::Rustc, SourceType::InTree, target, "doc");
         cargo.env(
             "RUSTDOCFLAGS",
             "--document-private-items \