diff --git a/src/Cargo.lock b/src/Cargo.lock index 2f77d4125ab0e..f70fc81829f58 100644 --- a/src/Cargo.lock +++ b/src/Cargo.lock @@ -37,6 +37,19 @@ dependencies = [ "libc 0.0.0", ] +[[package]] +name = "ammonia" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +dependencies = [ + "html5ever 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)", + "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)", + "maplit 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)", + "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)", + "tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)", + "url 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)", +] + [[package]] name = "ansi_term" version = "0.11.0" @@ -491,6 +504,14 @@ dependencies = [ "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)", ] +[[package]] +name = "debug_unreachable" +version = "0.1.1" 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"9e0a7d8bed3178a8fb112199d466eeca9ed09a14ba8ad67718179b4fd5487d0b" "checksum vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "887b5b631c2ad01628bbbaa7dd4c869f80d3186688f8d0b6f58774fbe324988c" diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py index cf54591f25cd5..487440becf630 100644 --- a/src/bootstrap/bootstrap.py +++ b/src/bootstrap/bootstrap.py @@ -770,10 +770,7 @@ def bootstrap(help_triggered): if 'dev' in data: build.set_dev_environment() - # No help text depends on submodules. This check saves ~1 minute of git commands, even if - # all the submodules are present and downloaded! - if not help_triggered: - build.update_submodules() + build.update_submodules() # Fetch/build the bootstrap build.build = args.build or build.build_triple() diff --git a/src/ci/docker/wasm32-unknown/Dockerfile b/src/ci/docker/wasm32-unknown/Dockerfile index 6c0ec1ad9d4e1..28d11064c6bba 100644 --- a/src/ci/docker/wasm32-unknown/Dockerfile +++ b/src/ci/docker/wasm32-unknown/Dockerfile @@ -25,6 +25,12 @@ ENV RUST_CONFIGURE_ARGS \ --set build.nodejs=/node-v9.2.0-linux-x64/bin/node \ --set rust.lld +# Some run-make tests have assertions about code size, and enabling debug +# assertions in libstd causes the binary to be much bigger than it would +# otherwise normally be. We already test libstd with debug assertions in lots of +# other contexts as well +ENV NO_DEBUG_ASSERTIONS=1 + ENV SCRIPT python2.7 /checkout/x.py test --target $TARGETS \ src/test/run-make \ src/test/ui \ diff --git a/src/doc/index.md b/src/doc/index.md index 2e36831d7e86f..2ea889da1fde2 100644 --- a/src/doc/index.md +++ b/src/doc/index.md @@ -13,65 +13,65 @@ unofficial documentation resources as well! Many of these resources take the form of "books"; we collectively call these "The Rust Bookshelf." Some are large, some are small. -## Learn Rust +# Learn Rust If you'd like to learn Rust, this is the spot for you! All of these resources assume that you have programmed before, but not in any specific language: -### The Rust Programming Language +## The Rust Programming Language Affectionately nicknamed "the book," [The Rust Programming Language](book/index.html) will give you an overview of the language from first principles. You'll build a few projects along the way, and by the end, you'll have a solid grasp of the language. -### Rust By Example +## Rust By Example If reading multiple hundreds of pages about a language isn't your style, then [Rust By Example](rust-by-example/index.html) has you covered. While the book talks about code with a lot of words, RBE shows off a bunch of code, and keeps the talking to a minimum. It also includes exercises! -## Use Rust +# Use Rust Once you've gotten familliar with the language, these resources can help you when you're actually using it day-to-day. -### The Standard Library +## The Standard Library Rust's standard library has [extensive API documentation](std/index.html), with explanations of how to use various things, as well as example code for accomplishing various tasks. -### The Cargo Book +## The Cargo Book [The Cargo Book](cargo/index.html) is a guide to Cargo, Rust's build tool and dependency manager. -### The Rustdoc Book +## The Rustdoc Book [The Rustdoc Book](rustdoc/index.html) describes our documentation tool, `rustdoc`. -### Extended Error Listing +## Extended Error Listing Many of Rust's errors come with error codes, and you can request extended diagnostics from the compiler on those errors. You can also [read them here](error-index.html), if you prefer to read them that way. -## Master Rust +# Master Rust Once you're quite familiar with the language, you may find these advanced resources useful. -### The Reference +## The Reference [The Reference](reference/index.html) is not a formal spec, but is more detailed and comprehensive than the book. -### The Rustonomicon +## The Rustonomicon [The Rustonomicon](nomicon/index.html) is your guidebook to the dark arts of unsafe Rust. It's also sometimes called "the 'nomicon." -### The Unstable Book +## The Unstable Book [The Unstable Book](unstable-book/index.html) has documentation for unstable features. diff --git a/src/libcore/panic.rs b/src/libcore/panic.rs index 4e72eaa57c73e..212139f1f7a41 100644 --- a/src/libcore/panic.rs +++ b/src/libcore/panic.rs @@ -249,3 +249,13 @@ impl<'a> fmt::Display for Location<'a> { write!(formatter, "{}:{}:{}", self.file, self.line, self.col) } } + +/// An internal trait used by libstd to pass data from libstd to `panic_unwind` +/// and other panic runtimes. Not intended to be stabilized any time soon, do +/// not use. +#[unstable(feature = "std_internals", issue = "0")] +#[doc(hidden)] +pub unsafe trait BoxMeUp { + fn box_me_up(&mut self) -> *mut (Any + Send); + fn get(&self) -> &(Any + Send); +} diff --git a/src/libpanic_abort/lib.rs b/src/libpanic_abort/lib.rs index 5f768ef4399e8..a1c4555d0b0e9 100644 --- a/src/libpanic_abort/lib.rs +++ b/src/libpanic_abort/lib.rs @@ -53,7 +53,7 @@ pub unsafe extern fn __rust_maybe_catch_panic(f: fn(*mut u8), // now hopefully. #[no_mangle] #[rustc_std_internal_symbol] -pub unsafe extern fn __rust_start_panic(_data: usize, _vtable: usize) -> u32 { +pub unsafe extern fn __rust_start_panic(_payload: usize) -> u32 { abort(); #[cfg(any(unix, target_os = "cloudabi"))] diff --git a/src/libpanic_unwind/lib.rs b/src/libpanic_unwind/lib.rs index a5cebc3e4d04b..cd7a643140239 100644 --- a/src/libpanic_unwind/lib.rs +++ b/src/libpanic_unwind/lib.rs @@ -30,6 +30,7 @@ issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")] #![deny(warnings)] +#![feature(allocator_api)] #![feature(alloc)] #![feature(core_intrinsics)] #![feature(lang_items)] @@ -37,6 +38,7 @@ #![feature(panic_unwind)] #![feature(raw)] #![feature(staged_api)] +#![feature(std_internals)] #![feature(unwind_attributes)] #![cfg_attr(target_env = "msvc", feature(raw))] @@ -48,9 +50,11 @@ extern crate libc; #[cfg(not(any(target_env = "msvc", all(windows, target_arch = "x86_64", target_env = "gnu"))))] extern crate unwind; +use alloc::boxed::Box; use core::intrinsics; use core::mem; use core::raw; +use core::panic::BoxMeUp; // Rust runtime's startup objects depend on these symbols, so make them public. #[cfg(all(target_os="windows", target_arch = "x86", target_env="gnu"))] @@ -114,9 +118,7 @@ pub unsafe extern "C" fn __rust_maybe_catch_panic(f: fn(*mut u8), #[no_mangle] #[cfg_attr(stage0, unwind)] #[cfg_attr(not(stage0), unwind(allowed))] -pub unsafe extern "C" fn __rust_start_panic(data: usize, vtable: usize) -> u32 { - imp::panic(mem::transmute(raw::TraitObject { - data: data as *mut (), - vtable: vtable as *mut (), - })) +pub unsafe extern "C" fn __rust_start_panic(payload: usize) -> u32 { + let payload = payload as *mut &mut BoxMeUp; + imp::panic(Box::from_raw((*payload).box_me_up())) } diff --git a/src/librustdoc/html/static/main.js b/src/librustdoc/html/static/main.js index 3c115e2b8bacf..3a3fa833c238b 100644 --- a/src/librustdoc/html/static/main.js +++ b/src/librustdoc/html/static/main.js @@ -56,6 +56,14 @@ }; } + function getPageId() { + var id = document.location.href.split('#')[1]; + if (id) { + return id.split('?')[0].split('&')[0]; + } + return null; + } + function hasClass(elem, className) { if (elem && className && elem.className) { var elemClass = elem.className; @@ -1643,7 +1651,7 @@ } } - function toggleAllDocs() { + function toggleAllDocs(pageId) { var toggle = document.getElementById("toggle-all-docs"); if (hasClass(toggle, "will-expand")) { updateLocalStorage("rustdoc-collapse", "false"); @@ -1664,12 +1672,12 @@ toggle.title = "expand all docs"; onEach(document.getElementsByClassName("collapse-toggle"), function(e) { - collapseDocs(e, "hide"); + collapseDocs(e, "hide", pageId); }); } } - function collapseDocs(toggle, mode) { + function collapseDocs(toggle, mode, pageId) { if (!toggle || !toggle.parentNode) { return; } @@ -1745,14 +1753,18 @@ } } - var relatedDoc = toggle.parentNode; + var parentElem = toggle.parentNode; + var relatedDoc = parentElem; var docblock = relatedDoc.nextElementSibling; while (!hasClass(relatedDoc, "impl-items")) { relatedDoc = relatedDoc.nextElementSibling; } - if (!relatedDoc && !hasClass(docblock, "docblock")) { + if ((!relatedDoc && !hasClass(docblock, "docblock")) || + (pageId && onEach(relatedDoc.childNodes, function(e) { + return e.id === pageId; + }) === true)) { return; } @@ -1782,7 +1794,7 @@ } } - function autoCollapseAllImpls() { + function autoCollapseAllImpls(pageId) { // Automatically minimize all non-inherent impls onEach(document.getElementsByClassName('impl'), function(n) { // inherent impl ids are like 'impl' or impl-' @@ -1790,7 +1802,7 @@ if (!inherent) { onEach(n.childNodes, function(m) { if (hasClass(m, "collapse-toggle")) { - collapseDocs(m, "hide"); + collapseDocs(m, "hide", pageId); } }); } @@ -1900,7 +1912,7 @@ } }) - autoCollapseAllImpls(); + autoCollapseAllImpls(getPageId()); function createToggleWrapper() { var span = document.createElement('span'); @@ -2030,7 +2042,7 @@ }; if (getCurrentValue("rustdoc-collapse") === "true") { - toggleAllDocs(); + toggleAllDocs(getPageId()); } }()); diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css index 31a501d24e7db..f4918033c8e88 100644 --- a/src/librustdoc/html/static/rustdoc.css +++ b/src/librustdoc/html/static/rustdoc.css @@ -533,6 +533,9 @@ a { left: -5px; } .small-section-header > .anchor { + left: -20px; +} +.small-section-header > .anchor:not(.field) { left: -28px; } .anchor:before { diff --git a/src/librustdoc/html/static/storage.js b/src/librustdoc/html/static/storage.js index 2f4e203ebc5c2..4ef8349fa9ce9 100644 --- a/src/librustdoc/html/static/storage.js +++ b/src/librustdoc/html/static/storage.js @@ -19,10 +19,11 @@ function onEach(arr, func) { if (arr && arr.length > 0 && func) { for (var i = 0; i < arr.length; i++) { if (func(arr[i]) === true) { - break; + return true; } } } + return false; } function updateLocalStorage(name, value) { diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs index 6f6abfdd31e57..e6087b72c3384 100644 --- a/src/libstd/lib.rs +++ b/src/libstd/lib.rs @@ -296,6 +296,7 @@ #![feature(rand)] #![feature(raw)] #![feature(rustc_attrs)] +#![feature(std_internals)] #![feature(stdsimd)] #![feature(shrink_to)] #![feature(slice_bytes)] diff --git a/src/libstd/panicking.rs b/src/libstd/panicking.rs index 454ac64735c67..e5d30e81a8d76 100644 --- a/src/libstd/panicking.rs +++ b/src/libstd/panicking.rs @@ -17,6 +17,8 @@ //! * Executing a panic up to doing the actual implementation //! * Shims around "try" +use core::panic::BoxMeUp; + use io::prelude::*; use any::Any; @@ -27,7 +29,7 @@ use intrinsics; use mem; use ptr; use raw; -use sys::stdio::Stderr; +use sys::stdio::{Stderr, stderr_prints_nothing}; use sys_common::rwlock::RWLock; use sys_common::thread_info; use sys_common::util; @@ -57,7 +59,7 @@ extern { vtable_ptr: *mut usize) -> u32; #[cfg_attr(stage0, unwind)] #[cfg_attr(not(stage0), unwind(allowed))] - fn __rust_start_panic(data: usize, vtable: usize) -> u32; + fn __rust_start_panic(payload: usize) -> u32; } #[derive(Copy, Clone)] @@ -164,6 +166,12 @@ fn default_hook(info: &PanicInfo) { #[cfg(feature = "backtrace")] use sys_common::backtrace; + // Some platforms know that printing to stderr won't ever actually print + // anything, and if that's the case we can skip everything below. + if stderr_prints_nothing() { + return + } + // If this is a double panic, make sure that we print a backtrace // for this panic. Otherwise only print it if logging is enabled. #[cfg(feature = "backtrace")] @@ -213,15 +221,15 @@ fn default_hook(info: &PanicInfo) { let prev = LOCAL_STDERR.with(|s| s.borrow_mut().take()); match (prev, err.as_mut()) { - (Some(mut stderr), _) => { - write(&mut *stderr); - let mut s = Some(stderr); - LOCAL_STDERR.with(|slot| { - *slot.borrow_mut() = s.take(); - }); - } - (None, Some(ref mut err)) => { write(err) } - _ => {} + (Some(mut stderr), _) => { + write(&mut *stderr); + let mut s = Some(stderr); + LOCAL_STDERR.with(|slot| { + *slot.borrow_mut() = s.take(); + }); + } + (None, Some(ref mut err)) => { write(err) } + _ => {} } } @@ -346,7 +354,7 @@ pub fn begin_panic_fmt(msg: &fmt::Arguments, let mut s = String::new(); let _ = s.write_fmt(*msg); - rust_panic_with_hook(Box::new(s), Some(msg), file_line_col) + rust_panic_with_hook(&mut PanicPayload::new(s), Some(msg), file_line_col) } /// This is the entry point of panicking for panic!() and assert!(). @@ -362,7 +370,34 @@ pub fn begin_panic(msg: M, file_line_col: &(&'static str, u32, u3 // be performed in the parent of this thread instead of the thread that's // panicking. - rust_panic_with_hook(Box::new(msg), None, file_line_col) + rust_panic_with_hook(&mut PanicPayload::new(msg), None, file_line_col) +} + +struct PanicPayload { + inner: Option, +} + +impl PanicPayload { + fn new(inner: A) -> PanicPayload { + PanicPayload { inner: Some(inner) } + } +} + +unsafe impl BoxMeUp for PanicPayload { + fn box_me_up(&mut self) -> *mut (Any + Send) { + let data = match self.inner.take() { + Some(a) => Box::new(a) as Box, + None => Box::new(()), + }; + Box::into_raw(data) + } + + fn get(&self) -> &(Any + Send) { + match self.inner { + Some(ref a) => a, + None => &(), + } + } } /// Executes the primary logic for a panic, including checking for recursive @@ -371,9 +406,7 @@ pub fn begin_panic(msg: M, file_line_col: &(&'static str, u32, u3 /// This is the entry point or panics from libcore, formatted panics, and /// `Box` panics. Here we'll verify that we're not panicking recursively, /// run panic hooks, and then delegate to the actual implementation of panics. -#[inline(never)] -#[cold] -fn rust_panic_with_hook(payload: Box, +fn rust_panic_with_hook(payload: &mut BoxMeUp, message: Option<&fmt::Arguments>, file_line_col: &(&'static str, u32, u32)) -> ! { let (file, line, col) = *file_line_col; @@ -393,7 +426,7 @@ fn rust_panic_with_hook(payload: Box, unsafe { let info = PanicInfo::internal_constructor( - &*payload, + payload.get(), message, Location::internal_constructor(file, line, col), ); @@ -421,16 +454,29 @@ fn rust_panic_with_hook(payload: Box, /// Shim around rust_panic. Called by resume_unwind. pub fn update_count_then_panic(msg: Box) -> ! { update_panic_count(1); - rust_panic(msg) + + struct RewrapBox(Box); + + unsafe impl BoxMeUp for RewrapBox { + fn box_me_up(&mut self) -> *mut (Any + Send) { + Box::into_raw(mem::replace(&mut self.0, Box::new(()))) + } + + fn get(&self) -> &(Any + Send) { + &*self.0 + } + } + + rust_panic(&mut RewrapBox(msg)) } /// A private no-mangle function on which to slap yer breakpoints. #[no_mangle] #[allow(private_no_mangle_fns)] // yes we get it, but we like breakpoints -pub fn rust_panic(msg: Box) -> ! { +pub fn rust_panic(mut msg: &mut BoxMeUp) -> ! { let code = unsafe { - let obj = mem::transmute::<_, raw::TraitObject>(msg); - __rust_start_panic(obj.data as usize, obj.vtable as usize) + let obj = &mut msg as *mut &mut BoxMeUp; + __rust_start_panic(obj as usize) }; rtabort!("failed to initiate panic, error {}", code) } diff --git a/src/libstd/process.rs b/src/libstd/process.rs index 40bc84f4bc104..92f0406c09bb5 100644 --- a/src/libstd/process.rs +++ b/src/libstd/process.rs @@ -1452,6 +1452,7 @@ pub trait Termination { #[unstable(feature = "termination_trait_lib", issue = "43301")] impl Termination for () { + #[inline] fn report(self) -> i32 { ExitCode::SUCCESS.report() } } @@ -1481,6 +1482,7 @@ impl Termination for Result { #[unstable(feature = "termination_trait_lib", issue = "43301")] impl Termination for ExitCode { + #[inline] fn report(self) -> i32 { self.0.as_i32() } diff --git a/src/libstd/sys/cloudabi/stdio.rs b/src/libstd/sys/cloudabi/stdio.rs index 9519a92647108..1d7344f921c9d 100644 --- a/src/libstd/sys/cloudabi/stdio.rs +++ b/src/libstd/sys/cloudabi/stdio.rs @@ -77,3 +77,7 @@ pub fn is_ebadf(err: &io::Error) -> bool { } pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE; + +pub fn stderr_prints_nothing() -> bool { + false +} diff --git a/src/libstd/sys/redox/stdio.rs b/src/libstd/sys/redox/stdio.rs index 3abb094ac34e3..7a4d11b0ecb9a 100644 --- a/src/libstd/sys/redox/stdio.rs +++ b/src/libstd/sys/redox/stdio.rs @@ -75,3 +75,7 @@ pub fn is_ebadf(err: &io::Error) -> bool { } pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE; + +pub fn stderr_prints_nothing() -> bool { + false +} diff --git a/src/libstd/sys/unix/process/process_common.rs b/src/libstd/sys/unix/process/process_common.rs index b7f30600b8a4c..6396bb3a49e28 100644 --- a/src/libstd/sys/unix/process/process_common.rs +++ b/src/libstd/sys/unix/process/process_common.rs @@ -404,6 +404,7 @@ impl ExitCode { pub const SUCCESS: ExitCode = ExitCode(EXIT_SUCCESS as _); pub const FAILURE: ExitCode = ExitCode(EXIT_FAILURE as _); + #[inline] pub fn as_i32(&self) -> i32 { self.0 as i32 } diff --git a/src/libstd/sys/unix/stdio.rs b/src/libstd/sys/unix/stdio.rs index e9b3d4affc7dd..87ba2aef4f1d3 100644 --- a/src/libstd/sys/unix/stdio.rs +++ b/src/libstd/sys/unix/stdio.rs @@ -75,3 +75,7 @@ pub fn is_ebadf(err: &io::Error) -> bool { } pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE; + +pub fn stderr_prints_nothing() -> bool { + false +} diff --git a/src/libstd/sys/wasm/rwlock.rs b/src/libstd/sys/wasm/rwlock.rs index 8b06f54167487..6516010af4759 100644 --- a/src/libstd/sys/wasm/rwlock.rs +++ b/src/libstd/sys/wasm/rwlock.rs @@ -30,7 +30,7 @@ impl RWLock { if *mode >= 0 { *mode += 1; } else { - panic!("rwlock locked for writing"); + rtabort!("rwlock locked for writing"); } } @@ -51,7 +51,7 @@ impl RWLock { if *mode == 0 { *mode = -1; } else { - panic!("rwlock locked for reading") + rtabort!("rwlock locked for reading") } } diff --git a/src/libstd/sys/wasm/stdio.rs b/src/libstd/sys/wasm/stdio.rs index beb19c0ed2c1f..023f29576a27d 100644 --- a/src/libstd/sys/wasm/stdio.rs +++ b/src/libstd/sys/wasm/stdio.rs @@ -69,3 +69,7 @@ pub const STDIN_BUF_SIZE: usize = 0; pub fn is_ebadf(_err: &io::Error) -> bool { true } + +pub fn stderr_prints_nothing() -> bool { + !cfg!(feature = "wasm_syscall") +} diff --git a/src/libstd/sys/windows/process.rs b/src/libstd/sys/windows/process.rs index afa8e3e136935..bd5507e8f8967 100644 --- a/src/libstd/sys/windows/process.rs +++ b/src/libstd/sys/windows/process.rs @@ -414,6 +414,7 @@ impl ExitCode { pub const SUCCESS: ExitCode = ExitCode(EXIT_SUCCESS as _); pub const FAILURE: ExitCode = ExitCode(EXIT_FAILURE as _); + #[inline] pub fn as_i32(&self) -> i32 { self.0 as i32 } diff --git a/src/libstd/sys/windows/stdio.rs b/src/libstd/sys/windows/stdio.rs index b43df20bddd08..81b89da21d3c6 100644 --- a/src/libstd/sys/windows/stdio.rs +++ b/src/libstd/sys/windows/stdio.rs @@ -227,3 +227,7 @@ pub fn is_ebadf(err: &io::Error) -> bool { // idea is that on windows we use a slightly smaller buffer that's // been seen to be acceptable. pub const STDIN_BUF_SIZE: usize = 8 * 1024; + +pub fn stderr_prints_nothing() -> bool { + false +} diff --git a/src/libstd/sys_common/backtrace.rs b/src/libstd/sys_common/backtrace.rs index 1955f3ec9a28f..20109d2d0d5ac 100644 --- a/src/libstd/sys_common/backtrace.rs +++ b/src/libstd/sys_common/backtrace.rs @@ -139,10 +139,10 @@ pub fn __rust_begin_short_backtrace(f: F) -> T /// Controls how the backtrace should be formatted. #[derive(Debug, Copy, Clone, Eq, PartialEq)] pub enum PrintFormat { - /// Show all the frames with absolute path for files. - Full = 2, /// Show only relevant data from the backtrace. - Short = 3, + Short = 2, + /// Show all the frames with absolute path for files. + Full = 3, } // For now logging is turned off by default, and this function checks to see @@ -150,11 +150,10 @@ pub enum PrintFormat { pub fn log_enabled() -> Option { static ENABLED: atomic::AtomicIsize = atomic::AtomicIsize::new(0); match ENABLED.load(Ordering::SeqCst) { - 0 => {}, + 0 => {} 1 => return None, - 2 => return Some(PrintFormat::Full), - 3 => return Some(PrintFormat::Short), - _ => unreachable!(), + 2 => return Some(PrintFormat::Short), + _ => return Some(PrintFormat::Full), } let val = match env::var_os("RUST_BACKTRACE") { diff --git a/src/libstd/sys_common/mod.rs b/src/libstd/sys_common/mod.rs index 27504d374ddbf..d0c4d6a773746 100644 --- a/src/libstd/sys_common/mod.rs +++ b/src/libstd/sys_common/mod.rs @@ -28,6 +28,16 @@ use sync::Once; use sys; +macro_rules! rtabort { + ($($t:tt)*) => (::sys_common::util::abort(format_args!($($t)*))) +} + +macro_rules! rtassert { + ($e:expr) => (if !$e { + rtabort!(concat!("assertion failed: ", stringify!($e))); + }) +} + pub mod at_exit_imp; #[cfg(feature = "backtrace")] pub mod backtrace; @@ -101,10 +111,6 @@ pub fn at_exit(f: F) -> Result<(), ()> { if at_exit_imp::push(Box::new(f)) {Ok(())} else {Err(())} } -macro_rules! rtabort { - ($($t:tt)*) => (::sys_common::util::abort(format_args!($($t)*))) -} - /// One-time runtime cleanup. pub fn cleanup() { static CLEANUP: Once = Once::new(); diff --git a/src/libstd/sys_common/thread_local.rs b/src/libstd/sys_common/thread_local.rs index a4aa3d96d25c0..d0d6224de0a15 100644 --- a/src/libstd/sys_common/thread_local.rs +++ b/src/libstd/sys_common/thread_local.rs @@ -169,7 +169,7 @@ impl StaticKey { self.key.store(key, Ordering::SeqCst); } INIT_LOCK.unlock(); - assert!(key != 0); + rtassert!(key != 0); return key } @@ -190,7 +190,7 @@ impl StaticKey { imp::destroy(key1); key2 }; - assert!(key != 0); + rtassert!(key != 0); match self.key.compare_and_swap(0, key as usize, Ordering::SeqCst) { // The CAS succeeded, so we've created the actual key 0 => key as usize, diff --git a/src/libstd/sys_common/util.rs b/src/libstd/sys_common/util.rs index a391c7cc6ef0c..a373e980b970d 100644 --- a/src/libstd/sys_common/util.rs +++ b/src/libstd/sys_common/util.rs @@ -10,10 +10,13 @@ use fmt; use io::prelude::*; -use sys::stdio::Stderr; +use sys::stdio::{Stderr, stderr_prints_nothing}; use thread; pub fn dumb_print(args: fmt::Arguments) { + if stderr_prints_nothing() { + return + } let _ = Stderr::new().map(|mut stderr| stderr.write_fmt(args)); } diff --git a/src/libstd/thread/local.rs b/src/libstd/thread/local.rs index 99479bc56eff3..40d3280baa687 100644 --- a/src/libstd/thread/local.rs +++ b/src/libstd/thread/local.rs @@ -172,12 +172,16 @@ macro_rules! __thread_local_inner { &'static $crate::cell::UnsafeCell< $crate::option::Option<$t>>> { + #[cfg(target_arch = "wasm32")] + static __KEY: $crate::thread::__StaticLocalKeyInner<$t> = + $crate::thread::__StaticLocalKeyInner::new(); + #[thread_local] - #[cfg(target_thread_local)] + #[cfg(all(target_thread_local, not(target_arch = "wasm32")))] static __KEY: $crate::thread::__FastLocalKeyInner<$t> = $crate::thread::__FastLocalKeyInner::new(); - #[cfg(not(target_thread_local))] + #[cfg(all(not(target_thread_local), not(target_arch = "wasm32")))] static __KEY: $crate::thread::__OsLocalKeyInner<$t> = $crate::thread::__OsLocalKeyInner::new(); @@ -295,6 +299,39 @@ impl LocalKey { } } +/// On some platforms like wasm32 there's no threads, so no need to generate +/// thread locals and we can instead just use plain statics! +#[doc(hidden)] +#[cfg(target_arch = "wasm32")] +pub mod statik { + use cell::UnsafeCell; + use fmt; + + pub struct Key { + inner: UnsafeCell>, + } + + unsafe impl ::marker::Sync for Key { } + + impl fmt::Debug for Key { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.pad("Key { .. }") + } + } + + impl Key { + pub const fn new() -> Key { + Key { + inner: UnsafeCell::new(None), + } + } + + pub unsafe fn get(&self) -> Option<&'static UnsafeCell>> { + Some(&*(&self.inner as *const _)) + } + } +} + #[doc(hidden)] #[cfg(target_thread_local)] pub mod fast { diff --git a/src/libstd/thread/mod.rs b/src/libstd/thread/mod.rs index 71aee673cfe3e..1b976b79b4c98 100644 --- a/src/libstd/thread/mod.rs +++ b/src/libstd/thread/mod.rs @@ -202,6 +202,9 @@ pub use self::local::{LocalKey, AccessError}; // where fast TLS was not available; end-user code is compiled with fast TLS // where available, but both are needed. +#[unstable(feature = "libstd_thread_internals", issue = "0")] +#[cfg(target_arch = "wasm32")] +#[doc(hidden)] pub use self::local::statik::Key as __StaticLocalKeyInner; #[unstable(feature = "libstd_thread_internals", issue = "0")] #[cfg(target_thread_local)] #[doc(hidden)] pub use self::local::fast::Key as __FastLocalKeyInner; diff --git a/src/test/run-make/wasm-panic-small/Makefile b/src/test/run-make/wasm-panic-small/Makefile new file mode 100644 index 0000000000000..a11fba235957b --- /dev/null +++ b/src/test/run-make/wasm-panic-small/Makefile @@ -0,0 +1,11 @@ +-include ../../run-make-fulldeps/tools.mk + +ifeq ($(TARGET),wasm32-unknown-unknown) +all: + $(RUSTC) foo.rs -C lto -O --target wasm32-unknown-unknown + wc -c < $(TMPDIR)/foo.wasm + [ "`wc -c < $(TMPDIR)/foo.wasm`" -lt "1024" ] +else +all: +endif + diff --git a/src/test/run-make/wasm-panic-small/foo.rs b/src/test/run-make/wasm-panic-small/foo.rs new file mode 100644 index 0000000000000..9654d5f7c0991 --- /dev/null +++ b/src/test/run-make/wasm-panic-small/foo.rs @@ -0,0 +1,16 @@ +// Copyright 2018 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![crate_type = "cdylib"] + +#[no_mangle] +pub fn foo() { + panic!("test"); +} diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs index 0f482c95e05a2..9f2389292158b 100644 --- a/src/tools/build-manifest/src/main.rs +++ b/src/tools/build-manifest/src/main.rs @@ -90,6 +90,10 @@ static TARGETS: &'static [&'static str] = &[ "sparc-unknown-linux-gnu", "sparc64-unknown-linux-gnu", "sparcv9-sun-solaris", + "thumbv6m-none-eabi", + "thumbv7em-none-eabi", + "thumbv7em-none-eabihf", + "thumbv7m-none-eabi", "wasm32-unknown-emscripten", "wasm32-unknown-unknown", "x86_64-apple-darwin", diff --git a/src/tools/rustbook/Cargo.toml b/src/tools/rustbook/Cargo.toml index 539b434e9eca5..554e3c0cd5f0b 100644 --- a/src/tools/rustbook/Cargo.toml +++ b/src/tools/rustbook/Cargo.toml @@ -8,5 +8,6 @@ license = "MIT/Apache-2.0" clap = "2.25.0" [dependencies.mdbook] -version = "0.1.2" +version = "0.1.5" default-features = false +features = ["search"]