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2015-09-13Auto merge of #28339 - alexcrichton:stabilize-1.4, r=aturonbors-2/+6
The FCP is coming to a close and 1.4 is coming out soon, so this brings in the libs team decision for all library features this cycle. Stabilized APIs: * `<Box<str>>::into_string` * `Arc::downgrade` * `Arc::get_mut` * `Arc::make_mut` * `Arc::try_unwrap` * `Box::from_raw` * `Box::into_raw` * `CStr::to_str` * `CStr::to_string_lossy` * `CString::from_raw` * `CString::into_raw` * `IntoRawFd::into_raw_fd` * `IntoRawFd` * `IntoRawHandle::into_raw_handle` * `IntoRawHandle` * `IntoRawSocket::into_raw_socket` * `IntoRawSocket` * `Rc::downgrade` * `Rc::get_mut` * `Rc::make_mut` * `Rc::try_unwrap` * `Result::expect` * `String::into_boxed_slice` * `TcpSocket::read_timeout` * `TcpSocket::set_read_timeout` * `TcpSocket::set_write_timeout` * `TcpSocket::write_timeout` * `UdpSocket::read_timeout` * `UdpSocket::set_read_timeout` * `UdpSocket::set_write_timeout` * `UdpSocket::write_timeout` * `Vec::append` * `Vec::split_off` * `VecDeque::append` * `VecDeque::retain` * `VecDeque::split_off` * `rc::Weak::upgrade` * `rc::Weak` * `slice::Iter::as_slice` * `slice::IterMut::into_slice` * `str::CharIndices::as_str` * `str::Chars::as_str` * `str::split_at_mut` * `str::split_at` * `sync::Weak::upgrade` * `sync::Weak` * `thread::park_timeout` * `thread::sleep` Deprecated APIs * `BTreeMap::with_b` * `BTreeSet::with_b` * `Option::as_mut_slice` * `Option::as_slice` * `Result::as_mut_slice` * `Result::as_slice` * `f32::from_str_radix` * `f64::from_str_radix` Closes #27277 Closes #27718 Closes #27736 Closes #27764 Closes #27765 Closes #27766 Closes #27767 Closes #27768 Closes #27769 Closes #27771 Closes #27773 Closes #27775 Closes #27776 Closes #27785 Closes #27792 Closes #27795 Closes #27797
2015-09-11std: Internalize almost all of `std::rt`Alex Crichton-3/+17
This commit does some refactoring to make almost all of the `std::rt` private. Specifically, the following items are no longer part of its API: * DEFAULT_ERROR_CODE * backtrace * unwind * args * at_exit * cleanup * heap (this is just alloc::heap) * min_stack * util The module is now tagged as `#[doc(hidden)]` as the only purpose it's serve is an entry point for the `panic!` macro via the `begin_unwind` and `begin_unwind_fmt` reexports.
2015-09-11std: Stabilize/deprecate features for 1.4Alex Crichton-2/+6
The FCP is coming to a close and 1.4 is coming out soon, so this brings in the libs team decision for all library features this cycle. Stabilized APIs: * `<Box<str>>::into_string` * `Arc::downgrade` * `Arc::get_mut` * `Arc::make_mut` * `Arc::try_unwrap` * `Box::from_raw` * `Box::into_raw` * `CStr::to_str` * `CStr::to_string_lossy` * `CString::from_raw` * `CString::into_raw` * `IntoRawFd::into_raw_fd` * `IntoRawFd` * `IntoRawHandle::into_raw_handle` * `IntoRawHandle` * `IntoRawSocket::into_raw_socket` * `IntoRawSocket` * `Rc::downgrade` * `Rc::get_mut` * `Rc::make_mut` * `Rc::try_unwrap` * `Result::expect` * `String::into_boxed_slice` * `TcpSocket::read_timeout` * `TcpSocket::set_read_timeout` * `TcpSocket::set_write_timeout` * `TcpSocket::write_timeout` * `UdpSocket::read_timeout` * `UdpSocket::set_read_timeout` * `UdpSocket::set_write_timeout` * `UdpSocket::write_timeout` * `Vec::append` * `Vec::split_off` * `VecDeque::append` * `VecDeque::retain` * `VecDeque::split_off` * `rc::Weak::upgrade` * `rc::Weak` * `slice::Iter::as_slice` * `slice::IterMut::into_slice` * `str::CharIndices::as_str` * `str::Chars::as_str` * `str::split_at_mut` * `str::split_at` * `sync::Weak::upgrade` * `sync::Weak` * `thread::park_timeout` * `thread::sleep` Deprecated APIs * `BTreeMap::with_b` * `BTreeSet::with_b` * `Option::as_mut_slice` * `Option::as_slice` * `Result::as_mut_slice` * `Result::as_slice` * `f32::from_str_radix` * `f64::from_str_radix` Closes #27277 Closes #27718 Closes #27736 Closes #27764 Closes #27765 Closes #27766 Closes #27767 Closes #27768 Closes #27769 Closes #27771 Closes #27773 Closes #27775 Closes #27776 Closes #27785 Closes #27792 Closes #27795 Closes #27797
2015-09-08Let's see if lifetime elision works in this casellogiq-1/+1
2015-09-08Fixed required type coercionllogiq-1/+2
I'd have thought that the types of the slice::Split would have been inferred, but this appears not to be the case. Reverted this one change.
2015-09-08fixes/improvements thanks to @ManishearthAndre Bogus-2/+1
2015-09-08some more clippy-based improvementsAndre Bogus-10/+10
2015-09-04Add line numbers to windows-gnu backtracesDiggory Blake-238/+14
Fix formatting Remove unused imports Refactor Fix msvc build Fix line lengths Formatting Enable backtrace tests Fix using directive on mac pwd info Work-around buildbot PWD bug, and fix libbacktrace configuration Use alternative to `env -u` which is not supported on bitrig Disable tests on 32-bit windows gnu
2015-09-04Add ptr import (fixup #28187)Manish Goregaokar-1/+1
2015-09-03Use `null()`/`null_mut()` instead of `0 as *const T`/`0 as *mut T`Vadim Petrochenkov-14/+16
2015-08-30Atomically set CLOEXEC on duplicated socketsTobias Bucher-5/+25
For Bitrig, NetBSD and OpenBSD the constant was incorrectly in posix01, when it's actually posix08, so we move it. This is a [breaking-change], but we already had one in #27930. Fix NetBSD's F_DUPFD_CLOEXEC constant. For a similar feature detection, see this musl thread: http://comments.gmane.org/gmane.linux.lib.musl.general/2963 This assumes that an int literal has type `c_int` for varidic functions.
2015-08-27std: Fix backtrace imports for ios targetsMichael Macias-4/+1
This fixes building for ios targets caused by 7925c79.
2015-08-28Use a different buffer doubling logic for `std::sys::os::getcwd`Barosl Lee-5/+7
Make `std::sys::os::getcwd` call `Vec::reserve(1)` followed by `Vec::set_len` to double the buffer. This is to align with other similar functions, such as: - `std::sys_common::io::read_to_end_uninitialized` - `std::sys::fs::readlink` Also, reduce the initial buffer size from 2048 to 512. The previous size was introduced with 4bc26ce in 2013, but it seems a bit excessive. This is probably because buffer doubling was not implemented back then.
2015-08-28Reduce the reliance on `PATH_MAX`Barosl Lee-15/+30
- Rewrite `std::sys::fs::readlink` not to rely on `PATH_MAX` It currently has the following problems: 1. It uses `_PC_NAME_MAX` to query the maximum length of a file path in the underlying system. However, the meaning of the constant is the maximum length of *a path component*, not a full path. The correct constant should be `_PC_PATH_MAX`. 2. `pathconf` *may* fail if the referred file does not exist. This can be problematic if the file which the symbolic link points to does not exist, but the link itself does exist. In this case, the current implementation resorts to the hard-coded value of `1024`, which is not ideal. 3. There may exist a platform where there is no limit on file path lengths in general. That's the reaon why GNU Hurd doesn't define `PATH_MAX` at all, in addition to having `pathconf` always returning `-1`. In these platforms, the content of the symbolic link can be silently truncated if the length exceeds the hard-coded limit mentioned above. 4. The value obtained by `pathconf` may be outdated at the point of actually calling `readlink`. This is inherently racy. This commit introduces a loop that gradually increases the length of the buffer passed to `readlink`, eliminating the need of `pathconf`. - Remove the arbitrary memory limit of `std::sys::fs::realpath` As per POSIX 2013, `realpath` will return a malloc'ed buffer if the second argument is a null pointer.[1] [1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html - Comment on functions that are still using `PATH_MAX` There are some functions that only work in terms of `PATH_MAX`, such as `F_GETPATH` in OS X. Comments on them for posterity.
2015-08-24Atomically open files with O_CLOEXEC where possibleTobias Bucher-1/+4
On Linux the flag is just ignored if it is not supported: https://lwn.net/Articles/588444/ Touches #24237.
2015-08-23Auto merge of #27912 - DiamondLovesYou:backtrace-refactor, r=alexcrichtonbors-586/+688
2015-08-22Fix the Mac build, again.Richard Diamond-0/+1
2015-08-22Add missing imports to `dladdr.rs` for Mac.Richard Diamond-0/+6
2015-08-20Refactor unix backtracing. NFC.Richard Diamond-586/+681
2015-08-18std: Add into_raw_os traits to the OS preludesAlex Crichton-1/+1
These traits were mistakenly left out of the OS-specific prelude modules when they were added.
2015-08-15std: Add issues to all unstable featuresAlex Crichton-31/+37
2015-08-12Remove all unstable deprecated functionalityAlex Crichton-15/+0
This commit removes all unstable and deprecated functions in the standard library. A release was recently cut (1.3) which makes this a good time for some spring cleaning of the deprecated functions.
2015-08-11rollup merge of #27678: alexcrichton/snapshotsAlex Crichton-41/+0
* Lots of core prelude imports removed * Makefile support for MSVC env vars and Rust crates removed * Makefile support for morestack removed
2015-08-11Register new snapshotsAlex Crichton-41/+0
* Lots of core prelude imports removed * Makefile support for MSVC env vars and Rust crates removed * Makefile support for morestack removed
2015-08-11std: Fix imports for ios targetMichael Macias-1/+3
2015-08-11Auto merge of #27549 - tshepang:clarity, r=alexcrichtonbors-1/+1
2015-08-11Auto merge of #26818 - sfackler:duration-stabilization, r=aturonbors-8/+8
This commit stabilizes the `std::time` module and the `Duration` type. `Duration::span` remains unstable, and the `Display` implementation for `Duration` has been removed as it is still being reworked and all trait implementations for stable types are de facto stable. This is a [breaking-change] to those using `Duration`'s `Display` implementation. I'm opening this PR as a platform for discussion - there may be some method renaming to do as part of the stabilization process.
2015-08-10Stabilize the Duration APISteven Fackler-8/+8
This commit stabilizes the `std::time` module and the `Duration` type. `Duration::span` remains unstable, and the `Display` implementation for `Duration` has been removed as it is still being reworked and all trait implementations for stable types are de facto stable. This is a [breaking-change] to those using `Duration`'s `Display` implementation.
2015-08-10Auto merge of #27338 - alexcrichton:remove-morestack, r=brsonbors-43/+34
This commit removes all morestack support from the compiler which entails: * Segmented stacks are no longer emitted in codegen. * We no longer build or distribute libmorestack.a * The `stack_exhausted` lang item is no longer required The only current use of the segmented stack support in LLVM is to detect stack overflow. This is no longer really required, however, because we already have guard pages for all threads and registered signal handlers watching for a segfault on those pages (to print out a stack overflow message). Additionally, major platforms (aka Windows) already don't use morestack. This means that Rust is by default less likely to catch stack overflows because if a function takes up more than one page of stack space it won't hit the guard page. This is what the purpose of morestack was (to catch this case), but it's better served with stack probes which have more cross platform support and no runtime support necessary. Until LLVM supports this for all platform it looks like morestack isn't really buying us much. cc #16012 (still need stack probes) Closes #26458 (a drive-by fix to help diagnostics on stack overflow) r? @brson
2015-08-10Remove morestack supportAlex Crichton-43/+34
This commit removes all morestack support from the compiler which entails: * Segmented stacks are no longer emitted in codegen. * We no longer build or distribute libmorestack.a * The `stack_exhausted` lang item is no longer required The only current use of the segmented stack support in LLVM is to detect stack overflow. This is no longer really required, however, because we already have guard pages for all threads and registered signal handlers watching for a segfault on those pages (to print out a stack overflow message). Additionally, major platforms (aka Windows) already don't use morestack. This means that Rust is by default less likely to catch stack overflows because if a function takes up more than one page of stack space it won't hit the guard page. This is what the purpose of morestack was (to catch this case), but it's better served with stack probes which have more cross platform support and no runtime support necessary. Until LLVM supports this for all platform it looks like morestack isn't really buying us much. cc #16012 (still need stack probes) Closes #26458 (a drive-by fix to help diagnostics on stack overflow)
2015-08-10Auto merge of #27252 - tbu-:pr_less_transmutes, r=alexcrichtonbors-2/+1
The replacements are functions that usually use a single `mem::transmute` in their body and restrict input and output via more concrete types than `T` and `U`. Worth noting are the `transmute` functions for slices and the `from_utf8*` family for mutable slices. Additionally, `mem::transmute` was often used for casting raw pointers, when you can already cast raw pointers just fine with `as`. This builds upon #27233.
2015-08-10Auto merge of #27516 - alexcrichton:osx-flaky-zomg, r=brsonbors-0/+4
The investigation into #14232 discovered that it's possible that signal delivery to a newly spawned process is racy on OSX. This test has been failing spuriously on the OSX bots for some time now, so ignore it as we don't currently know a solution and it looks like it may be out of our control.
2015-08-09Replace many uses of `mem::transmute` with more specific functionsTobias Bucher-2/+1
The replacements are functions that usually use a single `mem::transmute` in their body and restrict input and output via more concrete types than `T` and `U`. Worth noting are the `transmute` functions for slices and the `from_utf8*` family for mutable slices. Additionally, `mem::transmute` was often used for casting raw pointers, when you can already cast raw pointers just fine with `as`.
2015-08-06fs: indicate that we only copy regular filesTshepang Lekhonkhobe-1/+1
2015-08-05Auto merge of #27393 - alexcrichton:no-std-changes, r=brsonbors-4/+20
This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184 Closes #27394
2015-08-04syntax: Don't assume `std` exists for testsAlex Crichton-0/+1
This commit removes the injection of `std::env::args()` from `--test` expanded code, relying on the test runner itself to call this funciton. This is more hygienic because we can't assume that `std` exists at the top layer all the time, and it meaks the injected test module entirely self contained.
2015-08-04std: Ignore test_process_mask on OSXAlex Crichton-0/+4
The investigation into #14232 discovered that it's possible that signal delivery to a newly spawned process is racy on OSX. This test has been failing spuriously on the OSX bots for some time now, so ignore it as we don't currently know a solution and it looks like it may be out of our control.
2015-08-03syntax: Implement #![no_core]Alex Crichton-4/+19
This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184
2015-08-01std: Allow to spawn a process as a session leader on UNIXMickaël Salaün-3/+19
2015-07-29std: Fix sub-second Condvar::wait_timeout_msAlex Crichton-13/+14
The API we're calling requires us to pass an absolute point in time as an argument (`pthread_cond_timedwait`) so we call `gettimeofday` ahead of time to then add the specified duration to. Unfortuantely the current "add the duration" logic forgot to take into account the current time's sub-second precision (e.g. the `tv_usec` field was ignored), causing sub-second duration waits to return spuriously.
2015-07-21Auto merge of #27073 - alexcrichton:less-proc-fs, r=brsonbors-38/+50
This can fail on linux for various reasons, such as the /proc filesystem not being mounted. There are already many cases where we can't set up stack guards, so just don't worry about this case and communicate that no guard was enabled. I've confirmed that this allows the compiler to run in a chroot without /proc mounted. Closes #22642
2015-07-21std: Be resilient to failure in pthread_getattr_npAlex Crichton-38/+50
This can fail on linux for various reasons, such as the /proc filesystem not being mounted. There are already many cases where we can't set up stack guards, so just don't worry about this case and communicate that no guard was enabled. I've confirmed that this allows the compiler to run in a chroot without /proc mounted. Closes #22642
2015-07-20std: Add IntoRaw{Fd,Handle,Socket} traitsAlex Crichton-4/+62
This commit is an implementation of [RFC 1174][rfc] which adds three new traits to the standard library: * `IntoRawFd` - implemented on Unix for all I/O types (files, sockets, etc) * `IntoRawHandle` - implemented on Windows for files, processes, etc * `IntoRawSocket` - implemented on Windows for networking types [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1174-into-raw-fd-socket-handle-traits.md Closes #27062
2015-07-17[ios] std: avoid `result::fold`Tamir Duberstein-6/+4
2015-07-11Auto merge of #26941 - fhartwig:osx-file-debug, r=alexcrichtonbors-3/+15
This makes `Debug` for `File` show the file path and access mode of the file on OS X, just like on Linux. I'd be happy about any feedback how to make this code better. In particular, I'm not sure how to handle the buffer passed to `fnctl`. This way works, but it feels a bit cumbersome. `fcntl` unfortunately doesn't return the length of the path.
2015-07-10Auto merge of #26896 - tbu-:pr_getcwd, r=alexcrichtonbors-19/+26
(On Windows, it works already.)
2015-07-10Show file name and access mode in Debug instance for File on OS XFlorian Hartwig-3/+15
2015-07-10Auto merge of #26751 - retep998:copy-that-floppy, r=alexcrichtonbors-1/+17
Using the OS mechanism for copying files allows the OS to optimize the transfer using stuff such as [Offloaded Data Transfers (ODX)](https://msdn.microsoft.com/en-us/library/windows/desktop/hh848056%28v=vs.85%29.aspx). Also preserves a lot more information, including NTFS [File Streams](https://msdn.microsoft.com/en-us/library/windows/desktop/aa364404%28v=vs.85%29.aspx), which the manual implementation threw away. In addition, it is an atomic operation, unlike the manual implementation which has extra calls for copying over permissions. r? @alexcrichton
2015-07-10Remove the generic `fill_bytes_buf` functionTobias Bucher-31/+13
2015-07-10Use CopyFileEx for fs::copy on WindowsPeter Atashian-1/+17
Adds a couple more tests for fs::copy Signed-off-by: Peter Atashian <retep998@gmail.com>