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2019-01-13Rollup merge of #57473 - alexcrichton:hex-display-on-windows, r=KimundiMazdak Farrokhzad-1/+10
std: Render large exit codes as hex on Windows On Windows process exit codes are never signals but rather always 32-bit integers. Most faults like segfaults and such end up having large integers used to represent them, like STATUS_ACCESS_VIOLATION being 0xC0000005. Currently, however, when an `ExitStatus` is printed this ends up getting rendered as 3221225477 which is somewhat more difficult to debug. This commit adds a branch in `Display for ExitStatus` on Windows which handles exit statuses where the high bit is set and prints those exit statuses as hex instead of with decimals. This will hopefully preserve the current display for small exit statuses (like `exit code: 22`), but assist in quickly debugging segfaults/access violations/etc. I've found at least that the hex codes are easier to search for than decimal. I wasn't able to find any official documentation saying that all system exit codes have the high bit set, but I figure it's a good enough heuristic for now.
2019-01-12Rollup merge of #57511 - jethrogb:jb/fix-undef, r=cramertjMazdak Farrokhzad-2/+2
Fix undefined behavior From the [`MaybeUninit::get_mut` docs](https://doc.rust-lang.org/std/mem/union.MaybeUninit.html): > It is up to the caller to guarantee that the the MaybeUninit really is in an initialized state, otherwise this will immediately cause undefined behavior. r? @joshtriplett
2019-01-12Rollup merge of #57498 - steveklabnik:gh29008, r=alexcrichtonMazdak Farrokhzad-0/+2
make note of one more normalization that Paths do Fixes #29008
2019-01-12Rollup merge of #57450 - steveklabnik:gh45678, r=KodrAusMazdak Farrokhzad-3/+2
actually take a slice in this example Fixes #45678
2019-01-12Rollup merge of #57441 - ↵Mazdak Farrokhzad-11/+82
VardhanThigle:Vardhan/x86_64-fortanix-unknown-sgx-backtrace-support, r=alexcrichton Supporting backtrace for x86_64-fortanix-unknown-sgx. # Overview Implementing following functions required by `libstd/sys_common` to support `backtrace`: ``` 1. unwind_backtrace 2. trace_fn 3. resolve_symname ``` # Description: The changes here are quite similar to the Cloudabi target `src/libstd/sys/cloudabi/backtrace.rs` The first 2 functions are implemented via calls to libunwind.a that is linked to the `x86_64-fortanix-unknown-sgx` (#56979), we have not implemented functionality needed by `resolve_symname` (or `dladdr`) to reduce SGX TCB. Rather, we print the function address (relative to enclave image base) in `resolve_symname` which can be later translated to correct symbol name (say, via `addr2line`). # Note: For `x86_64-fortanix-unknown-sgx`, the `RUST_BACKTRACE` environment has to be set from within the program running in an enclave. cc: @jethrogb r? @alexcrichton
2019-01-12Rollup merge of #57296 - ↵Mazdak Farrokhzad-1/+1
JosephTLyons:Fix-question-mark-operator-in-stdio-document, r=wesleywiser Fixed the link to the ? operator I'm working on updating all broken links, but figured I'd break up the pull requests so they are easier to review, versus just one big pull request.
2019-01-12Rollup merge of #57192 - czipperz:error_trait_doc_cause_to_source, r=wesleywiserMazdak Farrokhzad-7/+7
Change std::error::Error trait documentation to talk about `source` instead of `cause` Resolves #57056
2019-01-12Auto merge of #57234 - Centril:const-stabilizations-2, r=oli-obkbors-3/+3
Const-stabilize `const_int_ops` + `const_ip` r? @oli-obk ## Note for relnotes: This PR includes https://github.com/rust-lang/rust/pull/57105. I've added T-lang since this affects intrinsics and the operational semantics of Rust's `const fn` fragment. ## Stable APIs proposed for constification + `const_int_ops`: + `count_ones` + `count_zeros` + `leading_zeros` + `trailing_zeros` + `swap_bytes` + `from_be` + `from_le` + `to_be` + `to_le` + `const_ip` + `Ipv4Addr::new` ## Unstable APIs constified + `const_int_conversion`: + `reverse_bits`
2019-01-11Fix undefined behaviorJethro Beekman-2/+2
2019-01-10Update src/libstd/path.rsMazdak Farrokhzad-1/+1
Co-Authored-By: steveklabnik <steve@steveklabnik.com>
2019-01-10make note of one more normalization that Paths doSteve Klabnik-0/+2
Fixes #29008
2019-01-10std: Render large exit codes as hex on WindowsAlex Crichton-1/+10
On Windows process exit codes are never signals but rather always 32-bit integers. Most faults like segfaults and such end up having large integers used to represent them, like STATUS_ACCESS_VIOLATION being 0xC0000005. Currently, however, when an `ExitStatus` is printed this ends up getting rendered as 3221225477 which is somewhat more difficult to debug. This commit adds a branch in `Display for ExitStatus` on Windows which handles exit statuses where the high bit is set and prints those exit statuses as hex instead of with decimals. This will hopefully preserve the current display for small exit statuses (like `exit code: 22`), but assist in quickly debugging segfaults/access violations/etc. I've found at least that the hex codes are easier to search for than decimal. I wasn't able to find any official documentation saying that all system exit codes have the high bit set, but I figure it's a good enough heuristic for now.
2019-01-09actually take a slice in this exampleSteve Klabnik-3/+2
Fixes #45678
2019-01-09Exposing enclave image-base to the enclave applicationVardhan Thigle-7/+5
image-base could be used by crates like backtrace to providing to make symbol resolution easier.
2019-01-08Change std::error::Error trait documentation to talk about `source` instead ↵Czipperz-7/+7
of `cause`
2019-01-08Auto merge of #56407 - GuillaumeGomez:missing-docs-reexported-macros, r=varkorbors-0/+1
check missing docs for reexported macros as well Fixes #56334.
2019-01-08Supporting backtrace for x86_64-fortanix-unknown-sgx.Vardhan Thigle-10/+83
2019-01-08Auto merge of #56988 - alexcrichton:monotonic-instant, r=sfacklerbors-13/+101
std: Force `Instant::now()` to be monotonic This commit is an attempt to force `Instant::now` to be monotonic through any means possible. We tried relying on OS/hardware/clock implementations, but those seem buggy enough that we can't rely on them in practice. This commit implements the same hammer Firefox recently implemented (noted in #56612) which is to just keep whatever the lastest `Instant::now()` return value was in memory, returning that instead of the OS looks like it's moving backwards. Closes #48514 Closes #49281 cc #51648 cc #56560 Closes #56612 Closes #56940
2019-01-07std: Force `Instant::now()` to be monotonicAlex Crichton-13/+101
This commit is an attempt to force `Instant::now` to be monotonic through any means possible. We tried relying on OS/hardware/clock implementations, but those seem buggy enough that we can't rely on them in practice. This commit implements the same hammer Firefox recently implemented (noted in #56612) which is to just keep whatever the lastest `Instant::now()` return value was in memory, returning that instead of the OS looks like it's moving backwards. Closes #48514 Closes #49281 cc #51648 cc #56560 Closes #56612 Closes #56940
2019-01-07Rollup merge of #57375 - stjepang:duration-constants, r=joshtriplettPietro Albini-0/+4
Add duration constants Add constants `SECOND`, `MILLISECOND`, `MICROSECOND`, and `NANOSECOND` to `core::time`. This will make working with durations more ergonomic. Compare: ```rust // Convenient, but deprecated function. thread::sleep_ms(2000); // The current canonical way to sleep for two seconds. thread::sleep(Duration::from_secs(2)); // Sleeping using one of the new constants. thread::sleep(2 * SECOND); ```
2019-01-07Specify the tracking issueStjepan Glavina-1/+1
2019-01-06check missing docs for reexported macros as wellGuillaume Gomez-0/+1
2019-01-06Re-export constants from core into stdStjepan Glavina-0/+4
2019-01-05Rollup merge of #57326 - king6cong:doc, r=rkruppekennytm-2/+2
Doc rewording, use the same name `writer` None
2019-01-05Rollup merge of #57314 - wiktorkuchta:master, r=Centrilkennytm-3/+3
Fix repeated word typos Inspired by #57295 (I skipped 'be be' because of it) and my [PR in another repo ](https://github.com/e-maxx-eng/e-maxx-eng/pull/389) Not a stupid `sed`, I actually tried to fix case by case.
2019-01-05Rollup merge of #57312 - Mendess2526:master, r=Centrilkennytm-2/+2
`const fn` is no longer coming soon (const keyword docs) The `const` keyword [documentation](https://doc.rust-lang.org/std/keyword.const.html) mentions that `const fn`s are coming soon, but they have already been added.
2019-01-05Rollup merge of #57249 - frewsxcv:frewsxcv-second-edition, r=KodrAuskennytm-5/+5
Fix broken links to second edition TRPL. Fixes https://github.com/rust-lang/rust/issues/57104. Remove `second-edition/` from TRPL hyperlinks.
2019-01-05Rollup merge of #57238 - Zoxc:bt-fix, r=alexcrichtonkennytm-1/+10
Fix backtraces for inlined functions on Windows Fixes an regression introduced in https://github.com/rust-lang/rust/pull/50526 r? @alexcrichton
2019-01-04Doc rewording, use the same name `writer`king6cong-2/+2
2019-01-03Fix repeated word typosWiktor Kuchta-3/+3
Found with `git grep -P '\b([a-z]+)\s+\1\b'`
2019-01-03const fn no longer comming soon on const docsMendess2526-2/+2
2019-01-03Fixed the link to the ? operatorJoseph Lyons-1/+1
2019-01-02Auto merge of #57243 - dingelish:master, r=sfacklerbors-9/+13
Bound sgx target_env with fortanix as target_vendor This PR adds `target_vendor` check, as discussed in issue [57231](https://github.com/rust-lang/rust/issues/57231) Signed-off-by: Yu Ding <dingelish@gmail.com>
2019-01-02Auto merge of #56827 - faern:eliminate-recv-timeout-panic, r=KodrAusbors-6/+30
Eliminate Receiver::recv_timeout panic Fixes #54552. This panic is because `recv_timeout` uses `Instant::now() + timeout` internally. This possible panic is not mentioned in the documentation for this method. Very recently we merged (still unstable) support for checked addition (#56490) of `Instant + Duration`, so it's now finally possible to add these together without risking a panic.
2019-01-01Merge remote-tracking branch 'upstream/master'Yu Ding-40/+0
2019-01-01Remove min_const_unsafe_fn since it is stableYu Ding-2/+1
Signed-off-by: Yu Ding <dingelish@gmail.com>
2019-01-01Fix broken links to second edition TRPL.Corey Farwell-5/+5
Fixes https://github.com/rust-lang/rust/issues/57104.
2019-01-01Auto merge of #57194 - matthiaskrgr:copyright_headers, r=Centrilbors-30/+0
remove more copyright headers r? @Mark-Simulacrum
2018-12-31Bound sgx target_env with fortanix as target_vendorYu Ding-9/+14
Signed-off-by: Yu Ding <dingelish@gmail.com>
2019-01-01privacy: Use common `DefId` visiting infra for all privacy visitorsVadim Petrochenkov-10/+0
2018-12-31Fix backtraces on WindowsJohn Kåre Alsaker-1/+10
2018-12-31const-stabilize Ipv4Addr::newMazdak Farrokhzad-2/+2
2018-12-31const-stabilize const_int_ops + reverse_bitsMazdak Farrokhzad-1/+1
2018-12-29Rollup merge of #57177 - varkor:fix-duration_as_u128-warning, r=estebankkennytm-1/+0
Fix warning when compiling rustc
2018-12-29Rollup merge of #57153 - estebank:doc, r=cramertjkennytm-1/+1
Small: Fix span in char documentation
2018-12-28remove remaining copyright headersMatthias Krüger-30/+0
2018-12-28Fix warning when compiling rustcvarkor-1/+0
2018-12-28Auto merge of #57137 - cramertj:unpin-prelude, r=SimonSapinbors-1/+1
Add Unpin to std prelude, not just core r? @alexcrichton
2018-12-28Auto merge of #55519 - fhartwig:hashmap-index-example, r=Centrilbors-0/+3
Add example of using the indexing operator to HashMap docs Fixes #52575
2018-12-27Fix span in char documentationEsteban Küber-1/+1
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