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2015-09-23Auto merge of #28585 - ranma42:simpler-panic, r=alexcrichtonbors-83/+5
This is part of some cleanup I did while investigating #28129. This also ensures that `on_panic` is run even if the user has registered too many callbacks.
2015-09-22Auto merge of #28543 - gandro:netbsd, r=alexcrichtonbors-12/+107
These changes introduce the ability to cross-compile working binaries for NetBSD/amd64. Previous support added in PR #26682 shared all its code with the OpenBSD implementation, and was therefore never functional (e.g. linking against non-existing symbols and using wrong type definitions). Nonetheless, the previous patches were a great starting point and made my work significantly easier. :smiley: Because there are no stage0 snapshots for NetBSD (yet), I used a cross-compiler for NetBSD 7.0 RC3 and only tested some toy programs (threading and channels, stack guards, a small TCP/IP echo server and some other platform dependent bits). If someone could point me to documentation on how to generate a stage0 snapshot from a cross-compiler I'm happy to run the full test suite. A few other notes regarding Rust on NetBSD/amd64: - To preserve binary compatibility, NetBSD introduces new symbols for system call wrappers on breaking ABI changes and keeps the old (legacy) symbols around, see [this documentation](https://www.netbsd.org/docs/internals/en/chap-processes.html#syscalls_master) for some details. I went ahead and modified the `libc` and `std` crate to use the current (renamed) symbols instead of the legacy ones where I found them, but I might have missed some. Notably using the `sigaction` symbol (deprecated in 1998) instead of `__sigaction14` even triggers SIGSYS (bad syscall) on my amd64 setup. I also changed the type definitions to use the most recent version. - NetBSD's gdb doesn't really support position independent executables, so you might want to turn that off for debugging, see [NetBSD Problem Report #48250](https://gnats.netbsd.org/48250). - For binaries invoked using a relative path, NetBSD supports `$ORIGIN` only for short `rpath`s (~64 chars or so, I'm told). If running an executable fails with `execname not specified in AUX vector: No such file or directory`, consider invoking the binary using its full absolute path.
2015-09-22Remove unwind::registerAndrea Canciani-69/+2
The `register` function is unstable and it is not used anymore, hence it can be removed (together with the now-unused `Callback` type and `static` variables).
2015-09-22Fix alignment of pthread types on NetBSDSebastian Wicki-11/+19
2015-09-22Simplify inner_try in std::rt::unwind::tryAndrea Canciani-9/+11
Resolve the TLS PANICKING variable just once and re-use it as needed.
2015-09-22Simplify on_panic callback handlingAndrea Canciani-16/+5
The registration of `panicking::on_panic` as a general-purpose callback is overcomplicated and can fail. Instead, invoking it explicitly removes the need for locking and paves the way for further improvements.
2015-09-21Various fixes for NetBSD/amd64Sebastian Wicki-12/+99
2015-09-20Miscellaneous cleanup for old issues.Lee Jeffery-31/+1
2015-09-14Auto merge of #28358 - dotdash:nounwind, r=alexcrichtonbors-0/+6
This allows to skip the codegen for all the unneeded landing pads, reducing code size across the board by about 2-5%, depending on the crate. Compile times seem to be pretty unaffected though :-/
2015-09-14Mark all extern functions as nounwindBjörn Steinbrink-0/+6
Unwinding across an FFI boundary is undefined behaviour, so we can mark all external function as nounwind. The obvious exception are those functions that actually perform the unwinding.
2015-09-13Auto merge of #28339 - alexcrichton:stabilize-1.4, r=aturonbors-6/+14
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-12/+1694
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-6/+14
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-26/+20
2015-09-05Add line numbers to MSVC backtraceDiggory Blake-4/+31
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2015-09-04Add line numbers to windows-gnu backtracesDiggory Blake-77/+155
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-31/+37
2015-09-01Auto merge of #28130 - alexcrichton:fix-msvc-static-tls-dtor, r=brsonbors-9/+29
Running TLS destructors for a MSVC Windows binary requires the linker doesn't elide the `_tls_used` or `__tls_used` symbols (depending on the architecture). This is currently achieved via a `#[link_args]` hack but this only works for dynamically linked binaries because the link arguments aren't propagated to statically linked binaries. This commit alters the strategy to instead emit a volatile load from those symbols so LLVM can't elide it, forcing the reference to the symbol to stay alive as long as the callback function stays alive (which we've made sure of with the `#[linkage]` attribute). Closes #28111
2015-09-01std: Run TLS destructors in a statically linked binaryAlex Crichton-9/+29
Running TLS destructors for a MSVC Windows binary requires the linker doesn't elide the `_tls_used` or `__tls_used` symbols (depending on the architecture). This is currently achieved via a `#[link_args]` hack but this only works for dynamically linked binaries because the link arguments aren't propagated to statically linked binaries. This commit alters the strategy to instead emit a volatile load from those symbols so LLVM can't elide it, forcing the reference to the symbol to stay alive as long as the callback function stays alive (which we've made sure of with the `#[linkage]` attribute). Closes #28111
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.
2015-08-27Auto merge of #27808 - SimonSapin:utf16decoder, r=alexcrichtonbors-6/+5
* Rename `Utf16Items` to `Utf16Decoder`. "Items" is meaningless. * Generalize it to any `u16` iterator, not just `[u16].iter()` * Make it yield `Result` instead of a custom `Utf16Item` enum that was isomorphic to `Result`. This enable using the `FromIterator for Result` impl. * Replace `Utf16Item::to_char_lossy` with a `Utf16Decoder::lossy` iterator adaptor. This is a [breaking change], but only for users of the unstable `rustc_unicode` crate. I’d like this functionality to be stabilized and re-exported in `std` eventually, as the "low-level equivalent" of `String::from_utf16` and `String::from_utf16_lossy` like #27784 is the low-level equivalent of #27714. CC @aturon, @alexcrichton
2015-08-25Auto merge of #27995 - nagisa:windows-error-message, r=alexcrichtonbors-3/+2
According to https://msdn.microsoft.com/en-us/library/windows/desktop/ms679351(v=vs.85).aspx: > If the function succeeds, the return value is the number of TCHARs stored in the output buffer, > excluding the terminating null character. _**Completely untested**_… since I have no Windows machine or anything of a sort to test this on. r? @aturon
2015-08-25Do not recalculate string length in error_stringSimonas Kazlauskas-3/+2
According to https://msdn.microsoft.com/en-us/library/windows/desktop/ms679351(v=vs.85).aspx: > If the function succeeds, the return value is the number of TCHARs stored in the output buffer, > excluding the terminating null character.
2015-08-25Auto merge of #27971 - tbu-:pr_cloexec, r=alexcrichtonbors-1/+4
On Linux the flag is just ignored if it is not supported: https://lwn.net/Articles/588444/ Still needs the values of O_CLOEXEC on the BSDs. Touches #24237.
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.
2015-08-23Add Send/Sync traits on LookupHost structGuillaume Gomez-0/+3
2015-08-23Auto merge of #27912 - DiamondLovesYou:backtrace-refactor, r=alexcrichtonbors-586/+688
2015-08-23Refactor low-level UTF-16 decoding.Simon Sapin-6/+5
* Rename `utf16_items` to `decode_utf16`. "Items" is meaningless. * Move it to `rustc_unicode::char`, exposed in `std::char`. * Generalize it to any `u16` iterable, not just `&[u16]`. * Make it yield `Result` instead of a custom `Utf16Item` enum that was isomorphic to `Result`. This enable using the `FromIterator for Result` impl. * Add a `REPLACEMENT_CHARACTER` constant. * Document how `result.unwrap_or(REPLACEMENT_CHARACTER)` replaces `Utf16Item::to_char_lossy`.
2015-08-22Fix the Mac build, again.Richard Diamond-0/+1
2015-08-22Auto merge of #27896 - alexcrichton:into-raw-os-prelude, r=brsonbors-2/+2
These traits were mistakenly left out of the OS-specific prelude modules when they were added.
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-2/+2
These traits were mistakenly left out of the OS-specific prelude modules when they were added.
2015-08-17switch core::simd to repr(simd) and deprecate it.Huon Wilson-0/+2
This functionality will be available out of tree in the `simd` crate on crates.io. [breaking-change]
2015-08-15test: Fix tests for requiring issuesAlex Crichton-1/+2
2015-08-15std: Add issues to all unstable featuresAlex Crichton-35/+45
2015-08-13Auto merge of #27684 - alexcrichton:remove-deprecated, r=aturonbors-154/+11
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.
2015-08-13Auto merge of #27693 - nagisa:remutex-docs, r=alexcrichtonbors-3/+10
Initial version of PR had an DerefMut implementation, which was later removed because it may cause mutable reference aliasing. Suggest how to implement mutability with reentrant mutex and remove the claim we implement DerefMut.
2015-08-12Remove all unstable deprecated functionalityAlex Crichton-154/+11
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.
2015-08-12Fix ReentrantMutex documentation wrt DerefMutSimonas Kazlauskas-3/+10
Initial version of PR had an DerefMut implementation, which was later removed because it may cause mutable reference aliasing. Suggest how to implement mutability with reentrant mutex and remove the claim we implement DerefMut.
2015-08-11rollup merge of #27678: alexcrichton/snapshotsAlex Crichton-87/+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-87/+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
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