rust/compiler/rustc_target/src, branch 1.77.2

Rollup merge of #120495 - clubby789:remove-amdgpu-kernel, r=oli-obk

2024-01-31T11:10:53+00:00

Remove the `abi_amdgpu_kernel` feature The tracking issue (#51575) has been closed for 3 years, with no activity for 5.

Remove the `abi_amdgpu_kernel` feature

2024-01-30T15:46:40+00:00

Revert "Add the wasm32-wasi-preview2 target"

2024-01-28T01:02:50+00:00

This reverts commit 31ecf341250a889ac1154b2cbe3f0b97f9d008c1. Co-authored-by: Ryan Levick

Remove unused features

2024-01-25T14:01:33+00:00

Rollup merge of #120278 - djkoloski:remove_fatal_warnings_wasm, r=oli-obk

2024-01-25T07:39:43+00:00

Remove --fatal-warnings on wasm targets These were added with good intentions, but a recent change in LLVM 18 emits a warning while examining .rmeta sections in .rlib files. Since this flag is a nice-to-have and users can update their LLVM linker independently of rustc's LLVM version, we can just omit the flag. See [this comment on wasm targets' uses of `--fatal-warnings`](https://github.com/llvm/llvm-project/pull/78658#issuecomment-1906651390).

Rollup merge of #119616 - rylev:wasm32-wasi-preview2, r=petrochenkov,m-ou-se

2024-01-24T14:43:12+00:00

Add a new `wasm32-wasi-preview2` target This is the initial implementation of the MCP https://github.com/rust-lang/compiler-team/issues/694 creating a new tier 3 target `wasm32-wasi-preview2`. That MCP has been seconded and will most likely be approved in a little over a week from now. For more information on the need for this target, please read the [MCP](https://github.com/rust-lang/compiler-team/issues/694). There is one aspect of this PR that will become insta-stable once these changes reach a stable compiler: * A new `target_family` named `wasi` is introduced. This target family incorporates all wasi targets including `wasm32-wasi` and its derivative `wasm32-wasi-preview1-threads`. The difference between `target_family = wasi` and `target_os = wasi` will become much clearer when `wasm32-wasi` is renamed to `wasm32-wasi-preview1` and the `target_os` becomes `wasm32-wasi-preview1`. You can read about this target rename in [this MCP](https://github.com/rust-lang/compiler-team/issues/695) which has also been seconded and will hopefully be officially approved soon. Additional technical details include: * Both `std::sys::wasi_preview2` and `std::os::wasi_preview2` have been created and mostly use `#[path]` annotations on their submodules to reach into the existing `wasi` (soon to be `wasi_preview1`) modules. Over time the differences between `wasi_preview1` and `wasi_preview2` will grow and most like all `#[path]` based module aliases will fall away. * Building `wasi-preview2` relies on a [`wasi-sdk`](https://github.com/WebAssembly/wasi-sdk) in the same way that `wasi-preview1` does (one must include a `wasi-root` path in the `Config.toml` pointing to sysroot included in the wasi-sdk). The target should build against [wasi-sdk v21](https://github.com/WebAssembly/wasi-sdk/releases/tag/wasi-sdk-21) without modifications. However, the wasi-sdk itself is growing [preview2 support](https://github.com/WebAssembly/wasi-sdk/pull/370) so this might shift rapidly. We will be following along quickly to make sure that building the target remains possible as the wasi-sdk changes. * This requires a [patch to libc](https://github.com/rylev/rust-libc/tree/wasm32-wasi-preview2) that we'll need to land in conjunction with this change. Until that patch lands the target won't actually build.

Rollup merge of #120188 - devnexen:update_bsd_compiler_base_specs, r=wesleywiser

2024-01-23T20:19:53+00:00

compiler: update freebsd and netbsd base specs. both support thread local.

Remove --fatal-warnings on wasm targets

2024-01-23T19:10:17+00:00

These were added with good intentions, but a recent change in LLVM 18 emits a warning while examining .rmeta sections in .rlib files. Since this flag is a nice-to-have and users can update their LLVM linker independently of rustc's LLVM version, we can just omit the flag.

Add the wasm32-wasi-preview2 target

2024-01-23T12:26:16+00:00

Signed-off-by: Ryan Levick

rustc: implement support for `riscv32im_risc0_zkvm_elf`

2024-01-22T18:07:36+00:00

This also adds changes in the rust test suite in order to get a few of them to pass. Co-authored-by: Frank Laub Co-authored-by: Urgau <3616612+Urgau@users.noreply.github.com>