Added tvOS as targets #68191

simlay · 2020-01-13T22:10:36Z

This is a first attempt of adding support tvOS as described in #48862. It's got a lot of overlap with src/librustc_target/spec/apple_ios_base.rs.

I thought about refactoring apple_ios_base.rs to include this as well but that would require each of the ios and tvos targets to be of the something like the form let base = opts(AppleOS::TV, Arch::Arm64)?; I also did the same thing for watchOS because from what I can tell, all three targets (iOS, tvOS, and watchOS) have the same logic but have different parameters being sent to xcrun. Thoughts?

As far as the data_layout and other parameters to Target, I did as much research as I could but it really seems that processor in the iPhone 11 is the same as the apple TV so I didn't change any of those parameters.

I did get this to build and tested that it's actually running the the below logic (because the parameter to xcrun is appletvos not tvos).

I didn't manage to get it to actually compile a file with fn main(){} because I don't have the stdlib for aarch64-apple-tvos compiled it seems. Is there documentation for this?

Similar to the ending of #63467, I'm not sure what to do next.

rust-highfive · 2020-01-13T22:10:40Z

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @estebank (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

simlay · 2020-01-13T23:34:40Z

I've got mixed feelings about this in general. Here's diff librustc_target/spec/apple_ios_base.rs librustc_target/spec/apple_tvos_base.rs:

12,13d11
<     Armv7,
<     Armv7s,
15d12
<     I386,
17d13
<     X86_64_macabi,
23,24d18
<             Armv7 => "armv7",
<             Armv7s => "armv7s",
26d19
<             I386 => "i386",
28d20
<             X86_64_macabi => "x86_64",
44,45c36,37
<             "iphoneos"
<                 if sdkroot.contains("iPhoneSimulator.platform")
---
>             "appletvos"
>                 if sdkroot.contains("TVSimulator.platform")
50,57c42,43
<             "iphonesimulator"
<                 if sdkroot.contains("iPhoneOS.platform") || sdkroot.contains("MacOSX.platform") =>
<             {
<                 ()
<             }
<             "macosx10.15"
<                 if sdkroot.contains("iPhoneOS.platform")
<                     || sdkroot.contains("iPhoneSimulator.platform") =>
---
>             "appletvsimulator"
>                 if sdkroot.contains("TVOS.platform") || sdkroot.contains("MacOSX.platform") =>
87,89c73,74
<         Armv7 | Armv7s | Arm64 => "iphoneos",
<         I386 | X86_64 => "iphonesimulator",
<         X86_64_macabi => "macosx10.15",
---
>         Arm64 => "appletvos",
>         X86_64 => "appletvsimulator",
114,115d98
<         Armv7 => "cortex-a8", // iOS7 is supported on iPhone 4 and higher
<         Armv7s => "cortex-a9",
117d99
<         I386 => "yonah",
119d100
<         X86_64_macabi => "core2",
126,127c107
<         Armv7 | Armv7s | Arm64 | I386 | X86_64 => vec!["MACOSX_DEPLOYMENT_TARGET".to_string()],
<         X86_64_macabi => vec!["IPHONEOS_DEPLOYMENT_TARGET".to_string()],
---
>         Arm64 | X86_64 => vec!["MACOSX_DEPLOYMENT_TARGET".to_string()],

Thoughts on combining iOS, tvOS, and eventually watchOS into something like apple_arm_base (or a better name)?

estebank · 2020-01-14T22:59:39Z

I'll wait until thursday's @rust-lang/compiler meeting.

Centril · 2020-01-16T15:48:05Z

r? @nagisa

nagisa · 2020-01-17T00:31:54Z

@simlay you’re welcome to take a shot at merging the apple_ios_base and apple_tvos_base. I would perhaps call it a apple_sdk_base as SDK detection between these targets is what’s being shared ultimately, I believe.

Otherwise this looks good to me. r=me. (lmk if you’re not merging the bases, I’ll inform bors accordingly)

nagisa · 2020-01-17T00:35:11Z

I didn't manage to get it to actually compile a file with fn main(){} because I don't have the stdlib for aarch64-apple-tvos compiled it seems. Is there documentation for this?

The best way at this stage to get an stdlib for the target being added is to do a full x.py dist build I believe. I don’t think we have docs for this though. Your best bet will be probably looking at what CI invokes ultimately.

JohnCSimon · 2020-02-10T00:54:53Z

Ping from triage: @simlay - Can you please post your status on this PR. Can you address the comments or is this ready for review?

simlay · 2020-02-10T02:33:40Z

Thanks for the reminder! I’ll update this PR later this week to merge the comments about merging apple_io_base and apple_watchtv_base into apple_sdk_base.

simlay · 2020-02-15T00:09:52Z

r? @nagisa. I've merged apple_ios_base and apple_tvos_base into apple_sdk_base.

rust-highfive · 2020-02-15T00:27:44Z

The job x86_64-gnu-llvm-7 of your PR failed (pretty log, raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

2020-02-15T00:07:22.8388523Z ========================== Starting Command Output ===========================
2020-02-15T00:07:22.8390327Z [command]/bin/bash --noprofile --norc /home/vsts/work/_temp/8d11c8f9-c2f1-471b-80e6-aa561c60e4b8.sh
2020-02-15T00:07:22.8390369Z 
2020-02-15T00:07:22.8393453Z ##[section]Finishing: Disable git automatic line ending conversion
2020-02-15T00:07:22.8400919Z ##[section]Starting: Checkout rust-lang/rust@refs/pull/68191/merge to s
2020-02-15T00:07:22.8402921Z Task         : Get sources
2020-02-15T00:07:22.8402959Z Description  : Get sources from a repository. Supports Git, TfsVC, and SVN repositories.
2020-02-15T00:07:22.8402996Z Version      : 1.0.0
2020-02-15T00:07:22.8403032Z Author       : Microsoft
---
2020-02-15T00:07:23.9057697Z ##[command]git remote add origin https://github.com/rust-lang/rust
2020-02-15T00:07:23.9066634Z ##[command]git config gc.auto 0
2020-02-15T00:07:23.9068907Z ##[command]git config --get-all http.https://github.com/rust-lang/rust.extraheader
2020-02-15T00:07:23.9071105Z ##[command]git config --get-all http.proxy
2020-02-15T00:07:23.9077618Z ##[command]git -c http.extraheader="AUTHORIZATION: basic ***" fetch --force --tags --prune --progress --no-recurse-submodules --depth=2 origin +refs/heads/*:refs/remotes/origin/* +refs/pull/68191/merge:refs/remotes/pull/68191/merge

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

nagisa · 2020-02-15T00:43:55Z

Looks like you’ll need to reformat the code, but otherwise LGTM.

simlay · 2020-02-20T18:17:55Z

@nagisa done!

nikomatsakis · 2020-02-24T16:20:26Z

@bors r=nagisa

(I'm interpreting @nagisa's comment as r=me...)

Centril · 2020-03-10T11:08:46Z

Apparently it wasn't actually merged... @bors retry

Centril · 2020-03-10T11:13:41Z

@bors retry

Centril · 2020-03-10T11:14:06Z

@bors r=nagisa

bors · 2020-03-10T11:14:08Z

💡 This pull request was already approved, no need to approve it again.

There's another pull request that is currently being tested, blocking this pull request: Cleanup rmeta::MacroDef #66364

bors · 2020-03-10T11:14:09Z

📌 Commit 2599771 has been approved by nagisa

bors · 2020-03-10T11:14:10Z

🌲 The tree is currently closed for pull requests below priority 1000, this pull request will be tested once the tree is reopened

bors · 2020-03-11T16:18:51Z

⌛ Testing commit 2599771 with merge e775575c3d670aeaeb2c1eed2814735f4cdcddab...

Added tvOS as targets This is a first attempt of adding support tvOS as described in rust-lang#48862. It's got a lot of overlap with [src/librustc_target/spec/apple_ios_base.rs](https://github.com/rust-lang/rust/blob/31dd4f4acbcbdb02b0745d2136399ed664a28050/src/librustc_target/spec/apple_ios_base.rs). I thought about refactoring `apple_ios_base.rs` to include this as well but that would require each of the ios and tvos targets to be of the something like the form `let base = opts(AppleOS::TV, Arch::Arm64)?;` I also did the same thing for watchOS because from what I can tell, all three targets (iOS, tvOS, and watchOS) have the same logic but have different parameters being sent to `xcrun`. Thoughts? As far as the `data_layout` and other parameters to `Target`, I did as much research as I could but it really seems that processor in the [iPhone 11 is the same as the apple TV](https://en.wikipedia.org/wiki/Apple-designed_processors) so I didn't change any of those parameters. I did get this to build and tested that it's actually running the the below logic (because the parameter to `xcrun` is `appletvos` not `tvos`). I didn't manage to get it to actually compile a file with `fn main(){}` because I don't have the stdlib for `aarch64-apple-tvos` compiled it seems. Is there documentation for this? Similar to the ending of rust-lang#63467, I'm not sure what to do next.

Centril · 2020-03-11T16:32:53Z

@bors retry

Added tvOS as targets This is a first attempt of adding support tvOS as described in rust-lang#48862. It's got a lot of overlap with [src/librustc_target/spec/apple_ios_base.rs](https://github.com/rust-lang/rust/blob/31dd4f4acbcbdb02b0745d2136399ed664a28050/src/librustc_target/spec/apple_ios_base.rs). I thought about refactoring `apple_ios_base.rs` to include this as well but that would require each of the ios and tvos targets to be of the something like the form `let base = opts(AppleOS::TV, Arch::Arm64)?;` I also did the same thing for watchOS because from what I can tell, all three targets (iOS, tvOS, and watchOS) have the same logic but have different parameters being sent to `xcrun`. Thoughts? As far as the `data_layout` and other parameters to `Target`, I did as much research as I could but it really seems that processor in the [iPhone 11 is the same as the apple TV](https://en.wikipedia.org/wiki/Apple-designed_processors) so I didn't change any of those parameters. I did get this to build and tested that it's actually running the the below logic (because the parameter to `xcrun` is `appletvos` not `tvos`). I didn't manage to get it to actually compile a file with `fn main(){}` because I don't have the stdlib for `aarch64-apple-tvos` compiled it seems. Is there documentation for this? Similar to the ending of rust-lang#63467, I'm not sure what to do next.

bors · 2020-03-12T04:01:15Z

⌛ Testing commit 2599771 with merge e5e8ba4...

bors · 2020-03-12T07:15:19Z

☀️ Test successful - checks-azure
Approved by: nagisa
Pushing e5e8ba4 to master...

- aarch64-unknown-none: rust-lang/rust#68334 - aarch64-unknown-none-softfloat: rust-lang/rust#64589 - armv7-unknown-linux-gnueabi: rust-lang/rust#63107 - armv7-unknown-linux-musleabi: rust-lang/rust#63107 - aarch64-apple-tvos: rust-lang/rust#68191 - armv7a-none-eabihf: rust-lang/rust#68253 - i686-unknown-uefi: rust-lang/rust#64334 - thumbv7neon-unknown-linux-musleabihf: rust-lang/rust#66103 - x86_64-apple-ios-macabi: rust-lang/rust#63467 - x86_64-apple-tvos: rust-lang/rust#68191 - x86_64-linux-kernel: rust-lang/rust#64051 - x86_64-unknown-hermit-kernel: rust-lang/rust#66713 - x86_64-unknown-illumos: rust-lang/rust#71145 Moved to tier 2: - aarch64-unknown-none: rust-lang/rust#68334

Pkgsrc changes: * Remove a couple diffs which are now integrated upstream. * Adjust cargo checksums after upstream upgrades. * Belatedly bump the curl dependency * Unset DESTDIR during the build phase, to work around a mysterious build bug deep in the bowels of llvm. * Bump nearly all bootstraps to 1.43.1. Upstream changes: Version 1.44.0 (2020-06-04) ========================== Language -------- - [You can now use `async/.await` with `#[no_std]` enabled.][69033] - [Added the `unused_braces` lint.][70081] **Syntax-only changes** - [Expansion-driven outline module parsing][69838] ```rust #[cfg(FALSE)] mod foo { mod bar { mod baz; // `foo/bar/baz.rs` doesn't exist, but no error! } } ``` These are still rejected semantically, so you will likely receive an error but these changes can be seen and parsed by macros and conditional compilation. Compiler -------- - [Rustc now respects the `-C codegen-units` flag in incremental mode.][70156] Additionally when in incremental mode rustc defaults to 256 codegen units. - [Refactored `catch_unwind`, to have zero-cost unless unwinding is enabled and a panic is thrown.][67502] - [Added tier 3\* support for the `aarch64-unknown-none` and `aarch64-unknown-none-softfloat` targets.][68334] - [Added tier 3 support for `arm64-apple-tvos` and `x86_64-apple-tvos` targets.][68191] Libraries --------- - [Special cased `vec![]` to map directly to `Vec::new()`.][70632] This allows `vec![]` to be able to be used in `const` contexts. - [`convert::Infallible` now implements `Hash`.][70281] - [`OsString` now implements `DerefMut` and `IndexMut` returning a `&mut OsStr`.][70048] - [Unicode 13 is now supported.][69929] - [`String` now implements `From<&mut str>`.][69661] - [`IoSlice` now implements `Copy`.][69403] - [`Vec<T>` now implements `From<[T; N]>`.][68692] Where `N` is less than 32. - [`proc_macro::LexError` now implements `fmt::Display` and `Error`.][68899] - [`from_le_bytes`, `to_le_bytes`, `from_be_bytes`, `to_be_bytes`, `from_ne_bytes`, and `to_ne_bytes` methods are now `const` for all integer types.][69373] Stabilized APIs --------------- - [`PathBuf::with_capacity`] - [`PathBuf::capacity`] - [`PathBuf::clear`] - [`PathBuf::reserve`] - [`PathBuf::reserve_exact`] - [`PathBuf::shrink_to_fit`] - [`f32::to_int_unchecked`] - [`f64::to_int_unchecked`] - [`Layout::align_to`] - [`Layout::pad_to_align`] - [`Layout::array`] - [`Layout::extend`] Cargo ----- - [Added the `cargo tree` command which will print a tree graph of your dependencies.][cargo/8062] E.g. ``` mdbook v0.3.2 (/Users/src/rust/mdbook) +-- ammonia v3.0.0 | +-- html5ever v0.24.0 | | +-- log v0.4.8 | | | +-- cfg-if v0.1.9 | | +-- mac v0.1.1 | | +-- markup5ever v0.9.0 | | +-- log v0.4.8 (*) | | +-- phf v0.7.24 | | | +-- phf_shared v0.7.24 | | | +-- siphasher v0.2.3 | | | +-- unicase v1.4.2 | | | [build-dependencies] | | | +-- version_check v0.1.5 ... ``` You can also display dependencies on multiple versions of the same crate with `cargo tree -d` (short for `cargo tree --duplicates`). Misc ---- - [Rustdoc now allows you to specify `--crate-version` to have rustdoc include the version in the sidebar.][69494] Compatibility Notes ------------------- - [Rustc now correctly generates static libraries on Windows GNU targets with the `.a` extension, rather than the previous `.lib`.][70937] - [Removed the `-C no_integrated_as` flag from rustc.][70345] - [The `file_name` property in JSON output of macro errors now points the actual source file rather than the previous format of `<NAME macros>`.][70969] **Note:** this may not point a file that actually exists on the user's system. - [The minimum required external LLVM version has been bumped to LLVM 8.][71147] - [`mem::{zeroed, uninitialised}` will now panic when used with types that do not allow zero initialization such as `NonZeroU8`.][66059] This was previously a warning. - [In 1.45.0 (the next release) converting a `f64` to `u32` using the `as` operator has been defined as a saturating operation.][71269] This was previously undefined behaviour, you can use the `{f64, f32}::to_int_unchecked` methods to continue using the current behaviour which may desirable in rare performance sensitive situations. Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [dep_graph Avoid allocating a set on when the number reads are small.][69778] - [Replace big JS dict with JSON parsing.][71250] [69373]: rust-lang/rust#69373 [66059]: rust-lang/rust#66059 [68191]: rust-lang/rust#68191 [68899]: rust-lang/rust#68899 [71147]: rust-lang/rust#71147 [71250]: rust-lang/rust#71250 [70937]: rust-lang/rust#70937 [70969]: rust-lang/rust#70969 [70632]: rust-lang/rust#70632 [70281]: rust-lang/rust#70281 [70345]: rust-lang/rust#70345 [70048]: rust-lang/rust#70048 [70081]: rust-lang/rust#70081 [70156]: rust-lang/rust#70156 [71269]: rust-lang/rust#71269 [69838]: rust-lang/rust#69838 [69929]: rust-lang/rust#69929 [69661]: rust-lang/rust#69661 [69778]: rust-lang/rust#69778 [69494]: rust-lang/rust#69494 [69403]: rust-lang/rust#69403 [69033]: rust-lang/rust#69033 [68692]: rust-lang/rust#68692 [68334]: rust-lang/rust#68334 [67502]: rust-lang/rust#67502 [cargo/8062]: rust-lang/cargo#8062 [`PathBuf::with_capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.with_capacity [`PathBuf::capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.capacity [`PathBuf::clear`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.clear [`PathBuf::reserve`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve [`PathBuf::reserve_exact`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve_exact [`PathBuf::shrink_to_fit`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.shrink_to_fit [`f32::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f32.html#method.to_int_unchecked [`f64::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f64.html#method.to_int_unchecked [`Layout::align_to`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.align_to [`Layout::pad_to_align`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.pad_to_align [`Layout::array`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.array [`Layout::extend`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.extend

Version 1.44.0 (2020-06-04) ========================== Language -------- - [You can now use `async/.await` with `#[no_std]` enabled.][69033] - [Added the `unused_braces` lint.][70081] **Syntax-only changes** - [Expansion-driven outline module parsing][69838] ```rust #[cfg(FALSE)] mod foo { mod bar { mod baz; // `foo/bar/baz.rs` doesn't exist, but no error! } } ``` These are still rejected semantically, so you will likely receive an error but these changes can be seen and parsed by macros and conditional compilation. Compiler -------- - [Rustc now respects the `-C codegen-units` flag in incremental mode.][70156] Additionally when in incremental mode rustc defaults to 256 codegen units. - [Refactored `catch_unwind` to have zero-cost, unless unwinding is enabled and a panic is thrown.][67502] - [Added tier 3\* support for the `aarch64-unknown-none` and `aarch64-unknown-none-softfloat` targets.][68334] - [Added tier 3 support for `arm64-apple-tvos` and `x86_64-apple-tvos` targets.][68191] Libraries --------- - [Special cased `vec![]` to map directly to `Vec::new()`.][70632] This allows `vec![]` to be able to be used in `const` contexts. - [`convert::Infallible` now implements `Hash`.][70281] - [`OsString` now implements `DerefMut` and `IndexMut` returning a `&mut OsStr`.][70048] - [Unicode 13 is now supported.][69929] - [`String` now implements `From<&mut str>`.][69661] - [`IoSlice` now implements `Copy`.][69403] - [`Vec<T>` now implements `From<[T; N]>`.][68692] Where `N` is at most 32. - [`proc_macro::LexError` now implements `fmt::Display` and `Error`.][68899] - [`from_le_bytes`, `to_le_bytes`, `from_be_bytes`, `to_be_bytes`, `from_ne_bytes`, and `to_ne_bytes` methods are now `const` for all integer types.][69373] Stabilized APIs --------------- - [`PathBuf::with_capacity`] - [`PathBuf::capacity`] - [`PathBuf::clear`] - [`PathBuf::reserve`] - [`PathBuf::reserve_exact`] - [`PathBuf::shrink_to_fit`] - [`f32::to_int_unchecked`] - [`f64::to_int_unchecked`] - [`Layout::align_to`] - [`Layout::pad_to_align`] - [`Layout::array`] - [`Layout::extend`] Cargo ----- - [Added the `cargo tree` command which will print a tree graph of your dependencies.][cargo/8062] E.g. ``` mdbook v0.3.2 (/Users/src/rust/mdbook) ├── ammonia v3.0.0 │ ├── html5ever v0.24.0 │ │ ├── log v0.4.8 │ │ │ └── cfg-if v0.1.9 │ │ ├── mac v0.1.1 │ │ └── markup5ever v0.9.0 │ │ ├── log v0.4.8 (*) │ │ ├── phf v0.7.24 │ │ │ └── phf_shared v0.7.24 │ │ │ ├── siphasher v0.2.3 │ │ │ └── unicase v1.4.2 │ │ │ [build-dependencies] │ │ │ └── version_check v0.1.5 ... ``` You can also display dependencies on multiple versions of the same crate with `cargo tree -d` (short for `cargo tree --duplicates`). Misc ---- - [Rustdoc now allows you to specify `--crate-version` to have rustdoc include the version in the sidebar.][69494] Compatibility Notes ------------------- - [Rustc now correctly generates static libraries on Windows GNU targets with the `.a` extension, rather than the previous `.lib`.][70937] - [Removed the `-C no_integrated_as` flag from rustc.][70345] - [The `file_name` property in JSON output of macro errors now points the actual source file rather than the previous format of `<NAME macros>`.][70969] **Note:** this may not point to a file that actually exists on the user's system. - [The minimum required external LLVM version has been bumped to LLVM 8.][71147] - [`mem::{zeroed, uninitialised}` will now panic when used with types that do not allow zero initialization such as `NonZeroU8`.][66059] This was previously a warning. - [In 1.45.0 (the next release) converting a `f64` to `u32` using the `as` operator has been defined as a saturating operation.][71269] This was previously undefined behaviour, but you can use the `{f64, f32}::to_int_unchecked` methods to continue using the current behaviour, which may be desirable in rare performance sensitive situations. Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [dep_graph Avoid allocating a set on when the number reads are small.][69778] - [Replace big JS dict with JSON parsing.][71250] [69373]: rust-lang/rust#69373 [66059]: rust-lang/rust#66059 [68191]: rust-lang/rust#68191 [68899]: rust-lang/rust#68899 [71147]: rust-lang/rust#71147 [71250]: rust-lang/rust#71250 [70937]: rust-lang/rust#70937 [70969]: rust-lang/rust#70969 [70632]: rust-lang/rust#70632 [70281]: rust-lang/rust#70281 [70345]: rust-lang/rust#70345 [70048]: rust-lang/rust#70048 [70081]: rust-lang/rust#70081 [70156]: rust-lang/rust#70156 [71269]: rust-lang/rust#71269 [69838]: rust-lang/rust#69838 [69929]: rust-lang/rust#69929 [69661]: rust-lang/rust#69661 [69778]: rust-lang/rust#69778 [69494]: rust-lang/rust#69494 [69403]: rust-lang/rust#69403 [69033]: rust-lang/rust#69033 [68692]: rust-lang/rust#68692 [68334]: rust-lang/rust#68334 [67502]: rust-lang/rust#67502 [cargo/8062]: rust-lang/cargo#8062 [`PathBuf::with_capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.with_capacity [`PathBuf::capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.capacity [`PathBuf::clear`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.clear [`PathBuf::reserve`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve [`PathBuf::reserve_exact`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve_exact [`PathBuf::shrink_to_fit`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.shrink_to_fit [`f32::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f32.html#method.to_int_unchecked [`f64::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f64.html#method.to_int_unchecked [`Layout::align_to`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.align_to [`Layout::pad_to_align`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.pad_to_align [`Layout::array`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.array [`Layout::extend`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.extend

Pkgsrc changes: * Remove the clutter caused by the cross-compile setup from Makefile (Now consigned to my own private cross.mk file.) * Remove a couple of patches which are now integrated upstream. * Minor adjustments to a couple of other patches. * Adjust cargo checksums after upstream upgrades. * Belatedly bump the curl dependency * If doing a "dist" build, unset DESTDIR during the build phase, to work around a mysterious build bug deep in the bowels of llvm, causing llvm tools to be installed to a directory unexpecetd by the rest of the rust build, ref. rust-lang/rust#73132 A "dist" build is not expected to be followed by an "install". * Bump nearly all bootstraps to 1.43.1; NetBSD earmv7hf bootstrap bumped to 1.44.0, as that one now finally builds and works. Upstream changes: Version 1.44.0 (2020-06-04) ========================== Language -------- - [You can now use `async/.await` with `#[no_std]` enabled.][69033] - [Added the `unused_braces` lint.][70081] **Syntax-only changes** - [Expansion-driven outline module parsing][69838] ```rust #[cfg(FALSE)] mod foo { mod bar { mod baz; // `foo/bar/baz.rs` doesn't exist, but no error! } } ``` These are still rejected semantically, so you will likely receive an error but these changes can be seen and parsed by macros and conditional compilation. Compiler -------- - [Rustc now respects the `-C codegen-units` flag in incremental mode.][70156] Additionally when in incremental mode rustc defaults to 256 codegen units. - [Refactored `catch_unwind`, to have zero-cost unless unwinding is enabled and a panic is thrown.][67502] - [Added tier 3\* support for the `aarch64-unknown-none` and `aarch64-unknown-none-softfloat` targets.][68334] - [Added tier 3 support for `arm64-apple-tvos` and `x86_64-apple-tvos` targets.][68191] Libraries --------- - [Special cased `vec![]` to map directly to `Vec::new()`.][70632] This allows `vec![]` to be able to be used in `const` contexts. - [`convert::Infallible` now implements `Hash`.][70281] - [`OsString` now implements `DerefMut` and `IndexMut` returning a `&mut OsStr`.][70048] - [Unicode 13 is now supported.][69929] - [`String` now implements `From<&mut str>`.][69661] - [`IoSlice` now implements `Copy`.][69403] - [`Vec<T>` now implements `From<[T; N]>`.][68692] Where `N` is less than 32. - [`proc_macro::LexError` now implements `fmt::Display` and `Error`.][68899] - [`from_le_bytes`, `to_le_bytes`, `from_be_bytes`, `to_be_bytes`, `from_ne_bytes`, and `to_ne_bytes` methods are now `const` for all integer types.][69373] Stabilized APIs --------------- - [`PathBuf::with_capacity`] - [`PathBuf::capacity`] - [`PathBuf::clear`] - [`PathBuf::reserve`] - [`PathBuf::reserve_exact`] - [`PathBuf::shrink_to_fit`] - [`f32::to_int_unchecked`] - [`f64::to_int_unchecked`] - [`Layout::align_to`] - [`Layout::pad_to_align`] - [`Layout::array`] - [`Layout::extend`] Cargo ----- - [Added the `cargo tree` command which will print a tree graph of your dependencies.][cargo/8062] E.g. ``` mdbook v0.3.2 (/Users/src/rust/mdbook) +-- ammonia v3.0.0 | +-- html5ever v0.24.0 | | +-- log v0.4.8 | | | +-- cfg-if v0.1.9 | | +-- mac v0.1.1 | | +-- markup5ever v0.9.0 | | +-- log v0.4.8 (*) | | +-- phf v0.7.24 | | | +-- phf_shared v0.7.24 | | | +-- siphasher v0.2.3 | | | +-- unicase v1.4.2 | | | [build-dependencies] | | | +-- version_check v0.1.5 ... ``` You can also display dependencies on multiple versions of the same crate with `cargo tree -d` (short for `cargo tree --duplicates`). Misc ---- - [Rustdoc now allows you to specify `--crate-version` to have rustdoc include the version in the sidebar.][69494] Compatibility Notes ------------------- - [Rustc now correctly generates static libraries on Windows GNU targets with the `.a` extension, rather than the previous `.lib`.][70937] - [Removed the `-C no_integrated_as` flag from rustc.][70345] - [The `file_name` property in JSON output of macro errors now points the actual source file rather than the previous format of `<NAME macros>`.][70969] **Note:** this may not point a file that actually exists on the user's system. - [The minimum required external LLVM version has been bumped to LLVM 8.][71147] - [`mem::{zeroed, uninitialised}` will now panic when used with types that do not allow zero initialization such as `NonZeroU8`.][66059] This was previously a warning. - [In 1.45.0 (the next release) converting a `f64` to `u32` using the `as` operator has been defined as a saturating operation.][71269] This was previously undefined behaviour, you can use the `{f64, f32}::to_int_unchecked` methods to continue using the current behaviour which may desirable in rare performance sensitive situations. Internal Only ------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [dep_graph Avoid allocating a set on when the number reads are small.][69778] - [Replace big JS dict with JSON parsing.][71250] [69373]: rust-lang/rust#69373 [66059]: rust-lang/rust#66059 [68191]: rust-lang/rust#68191 [68899]: rust-lang/rust#68899 [71147]: rust-lang/rust#71147 [71250]: rust-lang/rust#71250 [70937]: rust-lang/rust#70937 [70969]: rust-lang/rust#70969 [70632]: rust-lang/rust#70632 [70281]: rust-lang/rust#70281 [70345]: rust-lang/rust#70345 [70048]: rust-lang/rust#70048 [70081]: rust-lang/rust#70081 [70156]: rust-lang/rust#70156 [71269]: rust-lang/rust#71269 [69838]: rust-lang/rust#69838 [69929]: rust-lang/rust#69929 [69661]: rust-lang/rust#69661 [69778]: rust-lang/rust#69778 [69494]: rust-lang/rust#69494 [69403]: rust-lang/rust#69403 [69033]: rust-lang/rust#69033 [68692]: rust-lang/rust#68692 [68334]: rust-lang/rust#68334 [67502]: rust-lang/rust#67502 [cargo/8062]: rust-lang/cargo#8062 [`PathBuf::with_capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.with_capacity [`PathBuf::capacity`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.capacity [`PathBuf::clear`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.clear [`PathBuf::reserve`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve [`PathBuf::reserve_exact`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.reserve_exact [`PathBuf::shrink_to_fit`]: https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.shrink_to_fit [`f32::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f32.html#method.to_int_unchecked [`f64::to_int_unchecked`]: https://doc.rust-lang.org/std/primitive.f64.html#method.to_int_unchecked [`Layout::align_to`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.align_to [`Layout::pad_to_align`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.pad_to_align [`Layout::array`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.array [`Layout::extend`]: https://doc.rust-lang.org/std/alloc/struct.Layout.html#method.extend

HindrikStegenga · 2021-05-22T21:39:12Z

Hello there!

I'm interested in running Rust code on my Apple TV. Since rustup doesn't provide pre-built compiler and such, I have manually checked out and compiled rustc and applied some manual patches to both libc and std crates and overridden them with my modified versions for my local compiler toolchain. I can successfully get libc and std crates to compile for the aarch64-apple-tvos target, but actually linking the produced .a static library in Xcode gives me an error saying that it's a macOS library. However, inspecting it with lipo seems to indicate that it actually is an arm64 binary... Any pointers on how to run atleast something in Rust on my AppleTV?

In terms of changes I did lo libc/std crates, I mostly sprinkled around target_os = "tvos" everywhere, since iOS and tvOS are very close in terms of base OS and libraries.

Added tvOS as a backend

35c4aae

rust-highfive assigned estebank Jan 13, 2020

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 13, 2020

estebank added I-nominated T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jan 14, 2020

rust-highfive assigned nagisa and unassigned estebank Jan 16, 2020

Centril added relnotes Marks issues that should be documented in the release notes of the next release. and removed I-nominated labels Jan 16, 2020

Centril added this to the 1.42 milestone Jan 16, 2020

hdhoang added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 30, 2020

Centril modified the milestones: 1.42, 1.43 Jan 31, 2020

Sebastian Imlay added 2 commits February 14, 2020 10:57

Merge branch 'master' of github.com:rust-lang/rust into add-tvSO-target

a266169

Merged apple_tvos_base and apple_ios_base into apple_sdk_base.

6b17330

fmt

2599771

Centril added this to the 1.44 milestone Mar 10, 2020

Centril closed this Mar 10, 2020

Centril reopened this Mar 10, 2020

Centril mentioned this pull request Mar 11, 2020

Rollup of 8 pull requests #69927

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Centril mentioned this pull request Mar 11, 2020

Rollup of 9 pull requests #69931

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bors added the merged-by-bors This PR was explicitly merged by bors. label Mar 12, 2020

bors merged commit e5e8ba4 into rust-lang:master Mar 12, 2020

ehuss mentioned this pull request May 15, 2020

Update platform tiers. rust-lang/rust-forge#356

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Added tvOS as targets #68191

Added tvOS as targets #68191

simlay commented Jan 13, 2020

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HindrikStegenga commented May 22, 2021

Added tvOS as targets #68191

Added tvOS as targets #68191

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