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2024-10-16Rollup merge of #131582 - juntyr:emscripten-platform-support, r=jieyouxuUrgau-3/+172
Add wasm32-unknown-emscripten platform support document This PR adds the platform support document for wasm32-unknown-emscripten, and adds a warning about breaks in Emscripten ABI compatibility (see #131467). I mostly based the document off the wasm32-unknown-unknown docs and some of the information may still be missing (e.g. who's the target maintainer) or outdated (e.g. the build requirements). I still hope that it provides a good starting point. r? `@workingjubilee`
2024-10-16Add wasm32-unknown-emscripten platform support documentJuniper Tyree-3/+172
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com> Co-authored-by: Alex Crichton <alex@alexcrichton.com> Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl>
2024-10-15Update arm64e-apple-tvos maintainerEmmanuel Ferdman-1/+1
Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>
2024-10-11Note Integer MVE hard-float use-case in arm platform docs.Jonathan 'theJPster' Pallant-0/+5
2024-10-11Clarify wording around use of `-fpregs` for amr platform docs.Jonathan 'theJPster' Pallant-3/+4
2024-10-05Add platform support doc for rv32eHenri Lunnikivi-1/+31
2024-10-05doc: platform-support.md: Document portHenri Lunnikivi-0/+3
2024-10-04Rollup merge of #131240 - taiki-e:typo, r=jieyouxuJubilee-1/+1
Fix typo in csky-unknown-linux-gnuabiv2.md
2024-10-04Rollup merge of #130453 - randomPoison:trusty-x86, r=pnkfelixJubilee-0/+1
Add x86_64-unknown-trusty as tier 3 target This PR adds a third target for the Trusty platform, `x86_64-unknown-trusty`. Please let me know if an MCP is required. https://github.com/rust-lang/compiler-team/issues/582 was made when adding the first two targets, I can make another one for the new target as well if needed. # Target Tier Policy Acknowledgements > A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.) - Nicole LeGare (```@randomPoison)``` - Andrei Homescu (```@ahomescu)``` - Chris Wailes (chriswailes@google.com) - As a fallback trusty-dev-team@google.com can be contacted Note that this does not reflect the maintainers currently listed in [`trusty.md`](https://github.com/rust-lang/rust/blob/c52c23b6f44cd19718721a5e3b2eeb169e9c96ff/src/doc/rustc/src/platform-support/trusty.md). #130452 is currently open to update the list of maintainers in the documentation. > Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target. The new target `x86_64-unknown-trusty` follows the existing naming convention for similar targets. > Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it. 👍 > Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users. There are no known legal issues or license incompatibilities. > Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions. 👍 > Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (core for most targets, alloc for targets that can support dynamic memory allocation, std for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions. This PR only adds the target. `std` support is being worked on and will be added in a future PR. > The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running binaries, or running tests (even if they do not pass), the documentation must explain how to run such binaries or tests for the target, using emulation if possible or dedicated hardware if necessary. 👍 > Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via ```@)``` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages. 👍 > Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target. 👍 > Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target. (Having support in a fork of the backend is not sufficient, it must be upstream.) 👍
2024-10-04Fix typo in csky-unknown-linux-gnuabiv2.mdTaiki Endo-1/+1
2024-09-28Add warning to arm-none-eabi.md instead of a Note:Jonathan 'theJPster' Pallant-1/+5
2024-09-28Suggested -fpregs instead of +soft-float.Jonathan 'theJPster' Pallant-16/+30
Has the same effect, but turning off a feature matches the other flags better than turning on a feature (which actually turns off a feature).
2024-09-28Fix typos in arm-none-eabi.mdJonathan 'theJPster' Pallant-5/+4
These arrived in #125690, I think by mistake.
2024-09-28ci update freebsd version proposal, freebsd 12 being eol.David Carlier-9/+9
raising to the lowest still active supported freebsd version. From 13.1 (already eol too), freebsd introduces a cpu affinity layer with linux. It also introduces a api compatible copy_file_range which can be used like its linux's counterpart. The former is essential to build #120589, therefore breaks the backward compatibility with the previous FreeBSD releases.
2024-09-25Rollup merge of #130549 - biabbas:riscv32_wrs_vxworks, r=nnethercoteMatthias Krüger-0/+4
Add RISC-V vxworks targets Risc-V 32 and RISC-V 64 targets are to be added in the target list.
2024-09-23Rollup merge of #130750 - heiher:loong-linux-ohos-tier3, r=jieyouxuMichael Goulet-0/+9
Add new Tier-3 target: `loongarch64-unknown-linux-ohos` MCP: https://github.com/rust-lang/compiler-team/issues/784
2024-09-23Add new Tier-3 target: `loongarch64-unknown-linux-ohos`Xiaotian Wu-0/+9
MCP: https://github.com/rust-lang/compiler-team/issues/784 Co-authored-by: WANG Rui <wangrui@loongson.cn>
2024-09-21Remove x86_64-fuchsia and aarch64-fuchsia target aliasesArtyom Tetyukhin-2/+0
2024-09-20Add arm64e-apple-tvos targetArtyom Tetyukhin-1/+40
2024-09-20Update std support for all vxworks target archsB I Mohammed Abbas-2/+2
2024-09-20Add Vxworks RISC-V targetsB I Mohammed Abbas-0/+4
2024-09-16Update Trusty target maintainersNicole LeGare-1/+2
2024-09-16Add x86_64-unknown-trusty as tier 3Nicole LeGare-0/+1
2024-09-09Fix default/minimum deployment target for Aarch64 simulator targetsMads Marquart-2/+2
The minimum that `rustc` encoded did not match the version in Clang, and that meant that that when linking, we ended up bumping the version. Specifically, this sets the correct deployment target of the following simulator and Mac Catalyst targets: - `aarch64-apple-ios-sim` from 10.0 to 14.0 - `aarch64-apple-tvos-sim` from 10.0 to 14.0 - `aarch64-apple-watchos-sim` from 5.0 to 7.0 - `aarch64-apple-ios-macabi` from 13.1 to 14.0 I have chosen to not document the simulator target versions in the platform support docs, as it is fundamentally uninteresting; the normal targets (e.g. `aarch64-apple-ios`, `aarch64-apple-tvos`) still have the same deployment target as before, and that's what developers should actually target.
2024-09-08added support for GNU/Hurd on x86_64Samuel Thibault-3/+5
2024-09-05Rollup merge of #127021 - ↵Matthias Krüger-0/+54
thesummer:1-add-target-support-for-rtems-arm-xilinx-zedboard, r=tgross35 Add target support for RTEMS Arm # `armv7-rtems-eabihf` This PR adds a new target for the RTEMS RTOS. To get things started it focuses on Xilinx/AMD Zynq-based targets, but in theory it should also support other armv7-based board support packages in the future. Given that RTEMS has support for many POSIX functions it is mostly enabling corresponding unix features for the new target. I also previously started a PR in libc (https://github.com/rust-lang/libc/pull/3561) to add the needed OS specific C-bindings and was told that a PR in this repo is needed first. I will update the PR to the newest version after approval here. I will probably also need to change one line in the backtrace repo. Current status is that I could compile rustc for the new target locally (with the updated libc and backtrace) and could compile binaries, link, and execute a simple "Hello World" RTEMS application for the target hardware. > A proposed target or target-specific patch that substantially changes code shared with other targets (not just target-specific code) must be reviewed and approved by the appropriate team for that shared code before acceptance. There should be no breaking changes for existing targets. Main changes are adding corresponding `cfg` switches for the RTEMS OS and adding the C binding in libc. # Tier 3 target policy > - A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.) I will do the maintenance (for now) further members of the RTEMS community will most likely join once the first steps have been done. > - Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target. > - Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it. > - If possible, use only letters, numbers, dashes and underscores for the name. Periods (`.`) are known to cause issues in Cargo. The proposed triple is `armv7-rtems-eabihf` > - Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users. > - The target must not introduce license incompatibilities. > - Anything added to the Rust repository must be under the standard Rust license (`MIT OR Apache-2.0`). > - The target must not cause the Rust tools or libraries built for any other host (even when supporting cross-compilation to the target) to depend on any new dependency less permissive than the Rust licensing policy. This applies whether the dependency is a Rust crate that would require adding new license exceptions (as specified by the `tidy` tool in the rust-lang/rust repository), or whether the dependency is a native library or binary. In other words, the introduction of the target must not cause a user installing or running a version of Rust or the Rust tools to be subject to any new license requirements. > - Compiling, linking, and emitting functional binaries, libraries, or other code for the target (whether hosted on the target itself or cross-compiling from another target) must not depend on proprietary (non-FOSS) libraries. Host tools built for the target itself may depend on the ordinary runtime libraries supplied by the platform and commonly used by other applications built for the target, but those libraries must not be required for code generation for the target; cross-compilation to the target must not require such libraries at all. For instance, `rustc` built for the target may depend on a common proprietary C runtime library or console output library, but must not depend on a proprietary code generation library or code optimization library. Rust's license permits such combinations, but the Rust project has no interest in maintaining such combinations within the scope of Rust itself, even at tier 3. > - "onerous" here is an intentionally subjective term. At a minimum, "onerous" legal/licensing terms include but are _not_ limited to: non-disclosure requirements, non-compete requirements, contributor license agreements (CLAs) or equivalent, "non-commercial"/"research-only"/etc terms, requirements conditional on the employer or employment of any particular Rust developers, revocable terms, any requirements that create liability for the Rust project or its developers or users, or any requirements that adversely affect the livelihood or prospects of the Rust project or its developers or users. The tools consists of the cross-compiler toolchain (gcc-based). The RTEMS kernel (BSD license) and parts of the driver stack of FreeBSD (BSD license). All tools are FOSS and publicly available here: https://gitlab.rtems.org/rtems There are also no new features or dependencies introduced to the Rust code. > - Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions. N/A to me. I am not a reviewer nor Rust team member. > - Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (`core` for most targets, `alloc` for targets that can support dynamic memory allocation, `std` for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions. `core` and `std` compile. Some advanced features of the `std` lib might not work yet. However, the goal of this tier 3 target it to make it easier for other people to build and run test applications to better identify the unsupported features and work towards enabling them. > - The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running binaries, or running tests (even if they do not pass), the documentation must explain how to run such binaries or tests for the target, using emulation if possible or dedicated hardware if necessary. Building is described in platform support doc. Running simple unit tests works. Running the test suite of the stdlib is currently not that easy. Trying to work towards that after the this target has been added to the nightly. > - Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via ````@`)``` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages. Understood. > - Backlinks such as those generated by the issue/PR tracker when linking to an issue or PR are not considered a violation of this policy, within reason. However, such messages (even on a separate repository) must not generate notifications to anyone involved with a PR who has not requested such notifications. Ok > - Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target. > - In particular, this may come up when working on closely related targets, such as variations of the same architecture with different features. Avoid introducing unconditional uses of features that another variation of the target may not have; use conditional compilation or runtime detection, as appropriate, to let each target run code supported by that target. I think, I didn't add any breaking changes for any existing targets (see the comment regarding features above). > - Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target. Can produce assembly code via the llvm backend (tested on Linux). > > If a tier 3 target stops meeting these requirements, or the target maintainers no longer have interest or time, or the target shows no signs of activity and has not built for some time, or removing the target would improve the quality of the Rust codebase, we may post a PR to remove it; any such PR will be CCed to the target maintainers (and potentially other people who have previously worked on the target), to check potential interest in improving the situation.GIAt this tier, the Rust project provides no official support for a target, so we place minimal requirements on the introduction of targets. Understood. r? compiler-team
2024-09-03Rollup merge of #129630 - alexcrichton:document-broken-c-abi-on-wasm32-u-u, ↵Matthias Krüger-0/+117
r=workingjubilee Document the broken C ABI of `wasm32-unknown-unknown` Inspired by discussion on https://github.com/rust-lang/rust/issues/129486 this is intended to at least document the current state of the world in a more public location than throughout a series of issues.
2024-09-03Updates/clarificationsAlex Crichton-7/+11
2024-09-03Add documentation for target armv7-rtems-eabihfJan Sommer-0/+54
2024-09-01Auto merge of #127897 - nyurik:add-qnx-70-target, r=saethlinbors-0/+19
add `aarch64_unknown_nto_qnx700` target - QNX 7.0 support for aarch64le This backports the QNX 7.1 aarch64 implementation to 7.0. * [x] required `-lregex` disabled, see https://github.com/rust-lang/libc/pull/3775 (released in libc 0.2.156) * [x] uses `libgcc.a` instead of `libgcc_s.so` (7.0 used ancient GCC 5.4 which didn't have gcc_s) * [x] a fix in `backtrace` crate to support stack traces https://github.com/rust-lang/backtrace-rs/pull/648 This PR bumps libc dependency to 0.2.158 CC: to the folks who did the [initial implementation](https://doc.rust-lang.org/rustc/platform-support/nto-qnx.html): `@flba-eb,` `@gh-tr,` `@jonathanpallant,` `@japaric` # Compile target ```bash # Configure qcc build environment source _path_/_to_/qnx7.0/qnxsdp-env.sh # Tell rust to use qcc when building QNX 7.0 targets export build_env=' CC_aarch64-unknown-nto-qnx700=qcc CFLAGS_aarch64-unknown-nto-qnx700=-Vgcc_ntoaarch64le_cxx CXX_aarch64-unknown-nto-qnx700=qcc AR_aarch64_unknown_nto_qnx700=ntoaarch64-ar' # Build rust compiler, libs, and the remote test server env $build_env ./x.py build \ --target x86_64-unknown-linux-gnu,aarch64-unknown-nto-qnx700 \ rustc library/core library/alloc library/std src/tools/remote-test-server rustup toolchain link stage1 build/host/stage1 ``` # Compile "hello world" ```bash source _path_/_to_/qnx7.0/qnxsdp-env.sh cargo new hello_world cd hello_world cargo +stage1 build --release --target aarch64-unknown-nto-qnx700 ``` # Configure a remote for testing Do this from a new shell - we will need to run more commands in the previous one. I ran into these two issues, and found some workarounds. * Temporary dir might not work properly * Default `remote-test-server` has issues binding to an address ``` # ./remote-test-server starting test server thread 'main' panicked at src/tools/remote-test-server/src/main.rs:175:29: called `Result::unwrap()` on an `Err` value: Os { code: 249, kind: AddrNotAvailable, message: "Can't assign requested address" } note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace ``` Specifying `--bind` param actually fixes that, and so does setting `TMPDIR` properly. ```bash # Copy remote-test-server to remote device. You may need to use sftp instead. # ATTENTION: Note that the path is different from the one in the remote testing documentation for some reason scp ./build/x86_64-unknown-linux-gnu/stage1-tools-bin/remote-test-server qnxdevice:/path/ # Run ssh with port forwarding - so that rust tester can connect to the local port instead ssh -L 12345:127.0.0.1:12345 qnxdevice # on the device, run rm -rf tmp && mkdir -p tmp && TMPDIR=$PWD/tmp ./remote-test-server --bind 0.0.0.0:12345 ``` # Run test suit Assume all previous environment variables are still set, or re-init them ```bash export TEST_DEVICE_ADDR="localhost:12345" # tidy needs to be skipped due to using un-published libc dependency export exclude_tests=' --exclude src/bootstrap --exclude src/tools/error_index_generator --exclude src/tools/linkchecker --exclude src/tools/tidy --exclude tests/ui-fulldeps --exclude rustc --exclude rustdoc --exclude tests/run-make-fulldeps' env $build_env ./x.py test $exclude_tests --stage 1 --target aarch64-unknown-nto-qnx700 ``` try-job: dist-x86_64-msvc
2024-08-31Rollup merge of #129366 - petrochenkov:libsearch, r=jieyouxuMatthias Krüger-1/+1
linker: Synchronize native library search in rustc and linker Also search for static libraries with alternative naming (`libname.a`) on MSVC when producing executables or dynamic libraries, and not just rlibs. This unblocks https://github.com/rust-lang/rust/pull/123436. try-job: x86_64-msvc
2024-08-30Squashed `aarch64_unknown_nto_qnx700` supportYuri Astrakhan-0/+19
2024-08-28fmt-debug optionKornel-1/+2
Allows disabling `fmt::Debug` derive and debug formatting.
2024-08-27docs: Update docs for the rustc's `-L` optionVadim Petrochenkov-1/+1
2024-08-27Rollup merge of #129490 - randomPoison:trusty-os-support, r=UrgauTrevor Gross-0/+54
Add Trusty OS as tier 3 target This PR adds support for the [Trusty secure operating system](https://source.android.com/docs/security/features/trusty) as a Tier 3 supported target. This upstreams [the patch that we have been using](https://cs.android.com/android/platform/superproject/+/master:external/rust/crates/libc/patches/trusty.patch;l=1;drc=122e586e93a534160230dc10ae3474cf31dd8f7f) internally. This also revives https://github.com/rust-lang/rust/pull/103895 which was closed due to inactivity, and is being resumed now that time allows. And MCP has already been done for adding this platform: rust-lang/compiler-team/issues/568 # Target Tier Policy Acknowledgements > A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.) - Nicole LeGare (``@randomPoison)`` - Stephen Crane (``@rinon)`` - As a fallback trusty-dev-team@google.com can be contacted > Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target. The two new Trusty targets, `aarch64-unknown-trusty` and `armv7-unknown-trusty` both follow the existing naming convention for similar targets. > Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it. 👍 > Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users. There are no known legal issues or license incompatibilities. > Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions. 👍 > Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (core for most targets, alloc for targets that can support dynamic memory allocation, std for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions. This PR only adds the targets for the platform. `std` support will be added once platform support is added to the libc crate, which depends on the language targets being added to rustc. > The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running binaries, or running tests (even if they do not pass), the documentation must explain how to run such binaries or tests for the target, using emulation if possible or dedicated hardware if necessary. 👍 > Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via ``@)`` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages. 👍 > Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target. 👍 > Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target. (Having support in a fork of the backend is not sufficient, it must be upstream.) 👍
2024-08-26Document the broken C ABI of `wasm32-unknown-unknown`Alex Crichton-0/+113
Inspired by discussion on https://github.com/rust-lang/rust/issues/129486 this is intended to at least document the current state of the world in a more public location than throughout a series of issues.
2024-08-26Note that std support is WIPNicole LeGare-5/+3
2024-08-24remove extraneous textTshepang Mbambo-2/+1
2024-08-24make text more easy to readTshepang Mbambo-3/+3
2024-08-23Add Trusty OS as tier 3 targetNicole LeGare-0/+56
2024-08-23Rollup merge of #128511 - alexcrichton:doc-wasm-features, r=jieyouxuGuillaume Gomez-1/+226
Document WebAssembly target feature expectations This commit is a result of the discussion on #128475 and incorporates parts of #109807 as well. This is all done as a new page of documentation for the `wasm32-unknown-unknown` target which previously did not exist. This new page goes into details about the preexisting target and additionally documents the expectations for WebAssembly features and code generation. The tl;dr is that LLVM will enable features over time after most engines have had support for awhile. Compiling without features requires `-Ctarget-cpu=mvp` to rustc plus `-Zbuild-std` to Cargo. Closes #109807 Closes #119811 Closes #128475
2024-08-18Auto merge of #126450 - madsmtm:promote-mac-catalyst, r=Mark-Simulacrumbors-10/+14
Promote Mac Catalyst targets to Tier 2, and ship with rustup Promote the Mac Catalyst targets `x86_64-apple-ios-macabi` and `aarch64-apple-ios-macabi` to Tier 2, as per [the MCP](https://github.com/rust-lang/compiler-team/issues/761) (see that for motivation and details). These targets are now also distributed with rustup, although without the sanitizer runtime, as that currently has trouble building, see https://github.com/rust-lang/rust/issues/129069.
2024-08-15Rollup merge of #128348 - ↵Matthias Krüger-0/+5
dingxiangfei2009:allow-shadow-call-stack-sanitizer, r=tmandry Unconditionally allow shadow call-stack sanitizer for AArch64 It is possible to do so whenever `-Z fixed-x18` is applied. cc ``@Darksonn`` for context The reasoning is that, as soon as reservation on `x18` is forced through the flag `fixed-x18`, on AArch64 the option to instrument with [Shadow Call Stack sanitizer](https://clang.llvm.org/docs/ShadowCallStack.html) is then applicable regardless of the target configuration. At the every least, we would like to relax the restriction on specifically `aarch64-unknonw-none`. For this option, we can include a documentation change saying that users of compiled objects need to ensure that they are linked to runtime with Shadow Call Stack instrumentation support. Related: #121972
2024-08-15Rollup merge of #127905 - BKPepe:powerpc-muslspe, r=wesleywiserMatthias Krüger-0/+34
Add powerpc-unknown-linux-muslspe compile target This is almost identical to already existing targets: - powerpc_unknown_linux_musl.rs - powerpc_unknown_linux_gnuspe.rs It has support for PowerPC SPE (muslspe), which can be used with GCC version up to 8. It is useful for Freescale or IBM cores like e500. This was verified to be working with OpenWrt build system for CZ.NIC's Turris 1.x routers, which are using Freescale P2020, e500v2, so add it as a Tier 3 target. Follow-up of https://github.com/rust-lang/rust/pull/100860
2024-08-14Promote Mac Catalyst targets to tier 2, and ship with rustupMads Marquart-10/+14
- aarch64-apple-ios-macabi - x86_64-apple-ios-macabi
2024-08-11Rollup merge of #128592 - evelynharthbrooke:master, r=Mark-SimulacrumMatthias Krüger-4/+1
Promote aarch64-apple-darwin to Tier 1 This promotes aarch64-apple-darwin to Tier 1 status as per rust-lang/rfcs#3671 and tracking issue #73908. Not sure what else is necessary for this to impement the aforementioned RFC, however I figured I'd try. I did read in previous issues and PRs that the necessary infrastructure was already in place for the aarch64-apple-darwin target, and the RFC mentions the same. So this should be all thats necessary in order for the target to be promoted. This is a recreation of my previous PR because I accidentally did an incorrect git rebase which caused unnecessary changes to various commit SHAs. So this PR is a recreation of my previous PR without said stumble. My bad.
2024-08-10Auto merge of #128400 - petrochenkov:nowhole3, r=bjorn3bors-3/+1
linker: Remove the "`--whole-archive` in test mode" backcompat hack Fixes https://github.com/rust-lang/rust/issues/116910.
2024-08-09unconditionally allow shadow call-stack for AArch64 whenever fixed-x18 is ↵Ding Xiang Fei-0/+5
applied
2024-08-08Review commentsAlex Crichton-6/+6
2024-08-08Update platform support docs for VxWorks targetB I Mohammed Abbas-6/+8