Rename `wasm32-wasi` target to `wasm32-wasi-preview1` #607

yoshuawuyts · 2023-04-03T14:14:36Z

Proposal

This is a sibling MCP to: "New tier-2 target for wasm32-wasi-preview2" MCP. During the conversation on Zulip it came up that if we're going to be introducing wasm32-wasi-preview2, we should probably also rename the existing wasm32-wasi target to wasm32-wasi-preview1 in order to accurately set expectations. This is because eventually we'll want to deprecate the preview1 target, so it's probably best if we start communicating that in the name. Additionally we would also rename the wasm32-wasi-threads target to wasm32-wasi-preview1-threads.

Because we are not (yet) removing a target but only renaming it, we should be able to do this over a regular Rust release. This means we are not going to have a period where thewasm32-wasi and wasm32-wasi-preview1 targets are both available in the toolchain. In order to facilitate a smoother transition however, we may want to look into teaching the toolchain manager about "deprecated targets", so a better error can be issued for people looking to upgrade to a new Rust version where a target has been renamed or removed.

Mentors or Reviewers

N/A

Process

The main points of the Major Change Process are as follows:

File an issue describing the proposal.
A compiler team member or contributor who is knowledgeable in the area can second by writing @rustbot second.
- Finding a "second" suffices for internal changes. If however, you are proposing a new public-facing feature, such as a -C flag, then full team check-off is required.
- Compiler team members can initiate a check-off via @rfcbot fcp merge on either the MCP or the PR.
Once an MCP is seconded, the Final Comment Period begins. If no objections are raised after 10 days, the MCP is considered approved.

You can read more about Major Change Proposals on forge.

Comments

This issue is not meant to be used for technical discussion. There is a Zulip stream for that. Use this issue to leave procedural comments, such as volunteering to review, indicating that you second the proposal (or third, etc), or raising a concern that you would like to be addressed.

The text was updated successfully, but these errors were encountered:

rustbot · 2023-04-03T14:14:38Z

This issue is not meant to be used for technical discussion. There is a Zulip stream for that. Use this issue to leave procedural comments, such as volunteering to review, indicating that you second the proposal (or third, etc), or raising a concern that you would like to be addressed.

cc @rust-lang/compiler @rust-lang/compiler-contributors

wesleywiser · 2023-04-05T16:08:18Z

@rustbot second

apiraino · 2023-04-17T10:30:31Z

@rustbot label -final-comment-period +major-change-accepted

Rename `wasm32-wasi` to `wasm32-wasi-preview1` Implements rust-lang/compiler-team#607

WASI threads, implementation of wasm32-wasi-preview1-threads target This PR adds a target proposed in rust-lang/compiler-team#574 by `@abrown` and implementation of `std::thread::spawn` for the target `wasm32-wasi-preview1-threads` ### Tier 3 Target Policy As tier 3 targets, the new targets are required to adhere to [the tier 3 target policy](https://doc.rust-lang.org/nightly/rustc/target-tier-policy.html#tier-3-target-policy) requirements. This section quotes each requirement in entirety and describes how they are met. > - 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.) See [src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md](https://github.com/rust-lang/rust/pull/112922/files#diff-a48ee9d94f13e12be24eadd08eb47b479c153c340eeea4ef22276d876dfd4f3e). > - 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 target is using the same name for $ARCH=wasm32 and $OS=wasi as existing Rust targets. The suffix `preview1` introduced to accurately set expectations because eventually this target will be deprecated and follows [MCP 607](rust-lang/compiler-team#607). The suffix `threads` indicates that it’s an extension that enables threads to the existing target and it follows [MCP 574](rust-lang/compiler-team#574) which describes the rationale behind introducing a separate target. > - 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. This PR does not introduce any new dependency. The new target doesn’t support building host tools. > 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. The full standard library is available for this target as it’s an extension to an existing target that has already supported it. > 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. Only manual test running is supported at the moment with some tweaks in the test runner codebase. For build and running tests see [src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md](https://github.com/rust-lang/rust/pull/112922/files#diff-a48ee9d94f13e12be24eadd08eb47b479c153c340eeea4ef22276d876dfd4f3e). > - 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. > - This requirement does not prevent part or all of this policy from being cited in an explicit contract or work agreement (e.g. to implement or maintain support for a target). This requirement exists to ensure that a developer or team responsible for reviewing and approving a target does not face any legal threats or obligations that would prevent them from freely exercising their judgment in such approval, even if such judgment involves subjective matters or goes beyond the letter of these requirements. > - 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. > - 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. > - 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 acknowledge these requirements and intend to ensure they are met.

This commit adds a new target called `wasm32-wasi-preview1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasi-preview1` to better live alongside the [new `wasm32-wasi-preview2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasi-preview1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

…ame, r=wesleywiser Add a new `wasm32-wasip1` target to rustc This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

…e, r=wesleywiser Add a new `wasm32-wasip1` target to rustc This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

…e, r=wesleywiser Add a new `wasm32-wasip1` target to rustc This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

…eywiser Add a new `wasm32-wasip1` target to rustc This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang/rust#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

…system WASI community is going to be introducing pN suffix to the target triples to distinguish the different versions of the WASI Preview versions (e.g. `wasm32-unknown-wasip1` for WASI Preview1) to prepare the upcoming WASI Preview2 and so on. Other projects are also following this change: * WebAssembly/wasi-libc#478 * rust-lang/compiler-team#607

…eywiser Add a new `wasm32-wasip1` target to rustc This commit adds a new target called `wasm32-wasip1` to rustc. This new target is explained in these two MCPs: * rust-lang/compiler-team#607 * rust-lang/compiler-team#695 In short, the previous `wasm32-wasi` target is going to be renamed to `wasm32-wasip1` to better live alongside the [new `wasm32-wasip2` target](rust-lang/rust#119616). This new target is added alongside the `wasm32-wasi` target and has the exact same definition as the previous target. This PR is effectively a rename of `wasm32-wasi` to `wasm32-wasip1`. Note, however, that as explained in rust-lang/compiler-team#695 the previous `wasm32-wasi` target is not being removed at this time. This change will reach stable Rust before even a warning about the rename will be printed. At this time this change is just the start where a new target is introduced and users can start migrating if they support only Nightly for example.

This commit is a continuation of the work originally proposed in rust-lang/compiler-team#607 and later amended in rust-lang/compiler-team#695. The end goal is to rename `wasm32-wasi` to `wasm32-wasip1` to reflect WASI's development and distinguish the preexisting target from the `wasm32-wasip2` target that WASI is now developing. Work for this transition began in rust-lang#120468 which landed in Rust 1.78 which became stable on 2024-05-02. This implements the next phase of the transition plan to warn on usage of `wasm32-wasi`. This is intended to help alert users that a removal is pending and all release channels have the replacement available as well. This will reach stable on 2024-09-05. The next stage of the plan is to remove the `wasm32-wasi` target some time in October 2024 which means that the removal will reach stable on 2025-01-09. For reference a full schedule of this transition is listed [here]. Currently this implementation is a simple unconditional warning whenever `rustc --target wasm32-wasi` is invoked. As-implemented there's no way to turn off the warning other than to switch to the `wasm32-wasip1` target. [here]: rust-lang#120468 (comment)

…r=michaelwoerister Unconditionally warn on usage of `wasm32-wasi` This commit is a continuation of the work originally proposed in rust-lang/compiler-team#607 and later amended in rust-lang/compiler-team#695. The end goal is to rename `wasm32-wasi` to `wasm32-wasip1` to reflect WASI's development and distinguish the preexisting target from the `wasm32-wasip2` target that WASI is now developing. Work for this transition began in rust-lang#120468 which landed in Rust 1.78 which became stable on 2024-05-02. This implements the next phase of the transition plan to warn on usage of `wasm32-wasi`. This is intended to help alert users that a removal is pending and all release channels have the replacement available as well. This will reach stable on 2024-09-05. The next stage of the plan is to remove the `wasm32-wasi` target some time in October 2024 which means that the removal will reach stable on 2025-01-09. For reference a full schedule of this transition is listed [here]. Currently this implementation is a simple unconditional warning whenever `rustc --target wasm32-wasi` is invoked. As-implemented there's no way to turn off the warning other than to switch to the `wasm32-wasip1` target. [here]: rust-lang#120468 (comment)

Rollup merge of rust-lang#126662 - alexcrichton:warn-on-wasm32-wasi, r=michaelwoerister Unconditionally warn on usage of `wasm32-wasi` This commit is a continuation of the work originally proposed in rust-lang/compiler-team#607 and later amended in rust-lang/compiler-team#695. The end goal is to rename `wasm32-wasi` to `wasm32-wasip1` to reflect WASI's development and distinguish the preexisting target from the `wasm32-wasip2` target that WASI is now developing. Work for this transition began in rust-lang#120468 which landed in Rust 1.78 which became stable on 2024-05-02. This implements the next phase of the transition plan to warn on usage of `wasm32-wasi`. This is intended to help alert users that a removal is pending and all release channels have the replacement available as well. This will reach stable on 2024-09-05. The next stage of the plan is to remove the `wasm32-wasi` target some time in October 2024 which means that the removal will reach stable on 2025-01-09. For reference a full schedule of this transition is listed [here]. Currently this implementation is a simple unconditional warning whenever `rustc --target wasm32-wasi` is invoked. As-implemented there's no way to turn off the warning other than to switch to the `wasm32-wasip1` target. [here]: rust-lang#120468 (comment)

…woerister Unconditionally warn on usage of `wasm32-wasi` This commit is a continuation of the work originally proposed in rust-lang/compiler-team#607 and later amended in rust-lang/compiler-team#695. The end goal is to rename `wasm32-wasi` to `wasm32-wasip1` to reflect WASI's development and distinguish the preexisting target from the `wasm32-wasip2` target that WASI is now developing. Work for this transition began in #120468 which landed in Rust 1.78 which became stable on 2024-05-02. This implements the next phase of the transition plan to warn on usage of `wasm32-wasi`. This is intended to help alert users that a removal is pending and all release channels have the replacement available as well. This will reach stable on 2024-09-05. The next stage of the plan is to remove the `wasm32-wasi` target some time in October 2024 which means that the removal will reach stable on 2025-01-09. For reference a full schedule of this transition is listed [here]. Currently this implementation is a simple unconditional warning whenever `rustc --target wasm32-wasi` is invoked. As-implemented there's no way to turn off the warning other than to switch to the `wasm32-wasip1` target. [here]: rust-lang/rust#120468 (comment)

yoshuawuyts added major-change A proposal to make a major change to rustc T-compiler Add this label so rfcbot knows to poll the compiler team labels Apr 3, 2023

rustbot added the to-announce Announce this issue on triage meeting label Apr 3, 2023

rustbot added the final-comment-period The FCP has started, most (if not all) team members are in agreement label Apr 5, 2023

apiraino removed the to-announce Announce this issue on triage meeting label Apr 6, 2023

rustbot added major-change-accepted A major change proposal that was accepted to-announce Announce this issue on triage meeting and removed final-comment-period The FCP has started, most (if not all) team members are in agreement labels Apr 17, 2023

yoshuawuyts closed this as completed Apr 20, 2023

yoshuawuyts mentioned this issue Apr 20, 2023

Rename wasm32-wasi to wasm32-wasi-preview1 rust-lang/rust#110596

Closed

apiraino removed the to-announce Announce this issue on triage meeting label Apr 20, 2023

This was referenced Apr 21, 2023

Rename wasm32-wasi to wasm32-wasi-preview1 rust-lang/stdarch#1417

Closed

Rename wasm32-wasi to wasm32-wasip1 rust-lang/rustc-dev-guide#1678

Merged

Renaming the WASI target in Rust 1.71.0 rust-lang/blog.rust-lang.org#1099

Closed

the8472 mentioned this issue Jun 28, 2023

Add support for the riscv64-linux-android target #640

Closed

3 tasks

deltragon mentioned this issue Jun 29, 2023

WASI threads, implementation of wasm32-wasi-preview1-threads target rust-lang/rust#112922

Merged

yoshuawuyts mentioned this issue Jul 5, 2023

Tracking Issue for Compiler MCP 607: Rename wasm32-wasi target to wasm32-wasi-preview1 rust-lang/rust#113364

Open

7 tasks

bors added a commit to rust-lang-ci/rust that referenced this issue Jul 5, 2023

Auto merge of rust-lang#110596 - yoshuawuyts:rename-wasm32-wasi, r=<try>

4583ef2

Rename `wasm32-wasi` to `wasm32-wasi-preview1` Implements rust-lang/compiler-team#607

vados-cosmonic mentioned this issue Jul 6, 2023

feat: add preview2 target to wasmcloud.toml wasmCloud/wash#641

Merged

10 tasks

codefromthecrypt mentioned this issue Jul 13, 2023

change module name to wasi_snapshot_preview1 WebAssembly/wasi-threads#47

Open

pnkfelix mentioned this issue Jul 13, 2023

Update Android system definitions and add riscv-linux-android as tier 3 target rust-lang/rust#112858

Merged

This was referenced Nov 27, 2023

New Tier-3 target: wasm32-wasi-preview2 #694

Closed

Smooth the renaming transition of wasm32-wasi #695

Closed

alexcrichton mentioned this issue Jan 29, 2024

Add a new wasm32-wasip1 target to rustc rust-lang/rust#120468

Merged

alexcrichton mentioned this issue Feb 20, 2024

Add a new wasm32-wasip2 target rust-lang/rust#119616

Merged

kateinoigakukun mentioned this issue Mar 28, 2024

Rename wasm32-unknown-wasi to wasm32-unknown-wasip1 in the build system ruby/ruby.wasm#415

Merged

alexcrichton mentioned this issue Jun 19, 2024

Unconditionally warn on usage of wasm32-wasi rust-lang/rust#126662

Merged

alyssais mentioned this issue Jul 4, 2024

rust: make pkgsCross.wasi32.rustPlatform.buildRustPackage work NixOS/nixpkgs#323161

Open

13 tasks

Rjected mentioned this issue Jul 17, 2024

fix: Added CI back for check_no_std with compilation to wasm32 paradigmxyz/reth#9347

Open

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Rename `wasm32-wasi` target to `wasm32-wasi-preview1` #607

Rename `wasm32-wasi` target to `wasm32-wasi-preview1` #607

yoshuawuyts commented Apr 3, 2023 •

edited

Loading

rustbot commented Apr 3, 2023

wesleywiser commented Apr 5, 2023

apiraino commented Apr 17, 2023

Rename wasm32-wasi target to wasm32-wasi-preview1 #607

Rename wasm32-wasi target to wasm32-wasi-preview1 #607

Comments

yoshuawuyts commented Apr 3, 2023 • edited Loading

Proposal

Mentors or Reviewers

Process

Comments

rustbot commented Apr 3, 2023

wesleywiser commented Apr 5, 2023

apiraino commented Apr 17, 2023

Rename `wasm32-wasi` target to `wasm32-wasi-preview1` #607

Rename `wasm32-wasi` target to `wasm32-wasi-preview1` #607

yoshuawuyts commented Apr 3, 2023 •

edited

Loading