Auto merge of #39863 - frewsxcv:rollup, r=frewsxcv

Rollup of 11 pull requests

- Successful merges: #39775, #39793, #39804, #39824, #39834, #39837, #39839, #39840, #39843, #39844, #39846
- Failed merges:

Author: bors

configure

@@ -650,6 +650,7 @@ opt ninja 0 "build LLVM using the Ninja generator (for MSVC, requires building i
 opt locked-deps 0 "force Cargo.lock to be up to date"
 opt vendor 0 "enable usage of vendored Rust crates"
 opt sanitizers 0 "build the sanitizer runtimes (asan, lsan, msan, tsan)"
+opt dist-src 1 "when building tarballs enables building a source tarball"
 
 # Optimization and debugging options. These may be overridden by the release channel, etc.
 opt_nosave optimize 1 "build optimized rust code"

src/bootstrap/bin/rustc.rs

@@ -205,6 +205,11 @@ fn main() {
                 }
             }
         }
+
+        if target.contains("pc-windows-msvc") {
+            cmd.arg("-Z").arg("unstable-options");
+            cmd.arg("-C").arg("target-feature=+crt-static");
+        }
     }
 
     if verbose > 1 {

src/bootstrap/config.rs

@@ -72,6 +72,7 @@ pub struct Config {
     pub rustc_default_ar: Option<String>,
     pub rust_optimize_tests: bool,
     pub rust_debuginfo_tests: bool,
+    pub rust_dist_src: bool,
 
     pub build: String,
     pub host: Vec<String>,
@@ -183,6 +184,7 @@ struct Dist {
     sign_folder: Option<String>,
     gpg_password_file: Option<String>,
     upload_addr: Option<String>,
+    src_tarball: Option<bool>,
 }
 
 #[derive(RustcDecodable)]
@@ -380,6 +382,7 @@ impl Config {
             config.dist_sign_folder = t.sign_folder.clone().map(PathBuf::from);
             config.dist_gpg_password_file = t.gpg_password_file.clone().map(PathBuf::from);
             config.dist_upload_addr = t.upload_addr.clone();
+            set(&mut config.rust_dist_src, t.src_tarball);
         }
 
         return config
@@ -448,6 +451,7 @@ impl Config {
                 ("FULL_BOOTSTRAP", self.full_bootstrap),
                 ("EXTENDED", self.extended),
                 ("SANITIZERS", self.sanitizers),
+                ("DIST_SRC", self.rust_dist_src),
             }
 
             match key {

src/bootstrap/dist.rs

@@ -364,6 +364,10 @@ const CARGO_VENDOR_VERSION: &'static str = "0.1.4";
 
 /// Creates the `rust-src` installer component and the plain source tarball
 pub fn rust_src(build: &Build) {
+    if !build.config.rust_dist_src {
+        return
+    }
+
     println!("Dist src");
 
     let name = pkgname(build, "rust-src");

src/bootstrap/native.rs

@@ -99,6 +99,12 @@ pub fn llvm(build: &Build, target: &str) {
        .define("LLVM_TARGET_ARCH", target.split('-').next().unwrap())
        .define("LLVM_DEFAULT_TARGET_TRIPLE", target);
 
+    if target.contains("msvc") {
+        cfg.define("LLVM_USE_CRT_DEBUG", "MT");
+        cfg.define("LLVM_USE_CRT_RELEASE", "MT");
+        cfg.define("LLVM_USE_CRT_RELWITHDEBINFO", "MT");
+    }
+
     if target.starts_with("i686") {
         cfg.define("LLVM_BUILD_32_BITS", "ON");
     }

src/ci/docker/dist-x86-linux/Dockerfile

@@ -82,5 +82,9 @@ RUN curl -L https://api.pub.build.mozilla.org/tooltool/sha512/$SCCACHE_DIGEST |
 ENV HOSTS=i686-unknown-linux-gnu
 ENV HOSTS=$HOSTS,x86_64-unknown-linux-gnu
 
-ENV RUST_CONFIGURE_ARGS --host=$HOSTS --enable-extended --enable-sanitizers
+ENV RUST_CONFIGURE_ARGS \
+      --host=$HOSTS \
+      --enable-extended \
+      --enable-sanitizers
 ENV SCRIPT python2.7 ../x.py dist --host $HOSTS --target $HOSTS
+ENV DIST_SRC 1

src/ci/run.sh

@@ -25,6 +25,10 @@ RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-quiet-tests"
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --disable-manage-submodules"
 RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-locked-deps"
 
+if [ "$DIST_SRC" == "" ]; then
+  RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --disable-dist-src"
+fi
+
 # If we're deploying artifacts then we set the release channel, otherwise if
 # we're not deploying then we want to be sure to enable all assertions becauase
 # we'll be running tests

src/doc/book/src/macros.md

@@ -261,36 +261,34 @@ The metavariable `$x` is parsed as a single expression node, and keeps its
 place in the syntax tree even after substitution.
 
 Another common problem in macro systems is ‘variable capture’. Here’s a C
-macro, using [a GNU C extension] to emulate Rust’s expression blocks.
-
-[a GNU C extension]: https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
+macro using a block with multiple statements.
 
 ```text
-#define LOG(msg) ({ \
+#define LOG(msg) do { \
     int state = get_log_state(); \
     if (state > 0) { \
         printf("log(%d): %s\n", state, msg); \
     } \
-})
+} while (0)
 ```
 
 Here’s a simple use case that goes terribly wrong:
 
 ```text
 const char *state = "reticulating splines";
-LOG(state)
+LOG(state);
 ```
 
 This expands to
 
 ```text
 const char *state = "reticulating splines";
-{
+do {
     int state = get_log_state();
     if (state > 0) {
         printf("log(%d): %s\n", state, state);
     }
-}
+} while (0);
 ```
 
 The second variable named `state` shadows the first one.  This is a problem

src/doc/book/src/procedural-macros.md

@@ -99,7 +99,7 @@ created, we'll add it to our toml:
 hello-world-derive = { path = "hello-world-derive" }
 ```
 
-As for our the source of our `hello-world-derive` crate, here's an example:
+As for the source of our `hello-world-derive` crate, here's an example:
 
 ```rust,ignore
 extern crate proc_macro;

src/etc/natvis/libcollections.natvis

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<AutoVisualizer xmlns="http://schemas.microsoft.com/vstudio/debugger/natvis/2010">
+  <Type Name="collections::vec::Vec&lt;*&gt;">
+    <DisplayString>{{ size={len} }}</DisplayString>
+    <Expand>
+      <Item Name="[size]" ExcludeView="simple">len</Item>
+      <Item Name="[capacity]" ExcludeView="simple">buf.cap</Item>
+      <ArrayItems>
+        <Size>len</Size>
+        <ValuePointer>buf.ptr.pointer.__0</ValuePointer>
+      </ArrayItems>
+    </Expand>
+  </Type>
+  <Type Name="collections::vec_deque::VecDeque&lt;*&gt;">
+    <DisplayString>{{ size={tail &lt;= head ? head - tail : buf.cap - tail + head} }}</DisplayString>
+    <Expand>
+      <Item Name="[size]" ExcludeView="simple">tail &lt;= head ? head - tail : buf.cap - tail + head</Item>
+      <Item Name="[capacity]" ExcludeView="simple">buf.cap</Item>
+      <CustomListItems>
+        <Variable Name="i" InitialValue="tail" />
+
+        <Size>tail &lt;= head ? head - tail : buf.cap - tail + head</Size>
+        <Loop>
+          <If Condition="i == head">
+            <Break/>
+          </If>
+          <Item>buf.ptr.pointer.__0 + i</Item>
+          <Exec>i = (i + 1 == buf.cap ? 0 : i + 1)</Exec>
+        </Loop>
+      </CustomListItems>
+    </Expand>
+  </Type>
+  <Type Name="collections::linked_list::LinkedList&lt;*&gt;">
+    <DisplayString>{{ size={len} }}</DisplayString>
+    <Expand>
+      <LinkedListItems>
+        <Size>len</Size>
+        <HeadPointer>*(collections::linked_list::Node&lt;$T1&gt; **)&amp;head</HeadPointer>
+        <NextPointer>*(collections::linked_list::Node&lt;$T1&gt; **)&amp;next</NextPointer>
+        <ValueNode>element</ValueNode>
+      </LinkedListItems>
+    </Expand>
+  </Type>
+  <Type Name="collections::string::String">
+    <DisplayString>{*(char**)this,[vec.len]}</DisplayString>
+    <StringView>*(char**)this,[vec.len]</StringView>
+    <Expand>
+      <Item Name="[size]" ExcludeView="simple">vec.len</Item>
+      <Item Name="[capacity]" ExcludeView="simple">vec.buf.cap</Item>
+      <ArrayItems>
+        <Size>vec.len</Size>
+        <ValuePointer>*(char**)this</ValuePointer>
+      </ArrayItems>
+    </Expand>
+  </Type>
+</AutoVisualizer>