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Mark UEFI std support as WIP #120640

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Mar 17, 2024
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Mark UEFI std support as WIP #120640

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7 changes: 4 additions & 3 deletions src/doc/rustc/src/platform-support.md
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Expand Up @@ -118,6 +118,7 @@ The `std` column in the table below has the following meanings:

* ✓ indicates the full standard library is available.
* \* indicates the target only supports [`no_std`] development.
* ? indicates the standard library support is unknown or a work-in-progress.
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For reference, the wording here was suggested on zulip: https://rust-lang.zulipchat.com/#narrow/stream/122651-general/topic/Std.20status.20for.20UEFI/near/419113012

Only question I have is whether there are really targets where the support is unknown? I would expect that since the targets are implemented in this repo we would know whether they support std or not, but I don't know for sure.

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Nothing should ever be unknown except when it's badly documented (which a lot of this stuff here is!), so especially when starting to migrate #120745, a lot of things will probably be unknown and someone will have to figure it out.

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Thanks, makes sense :)


[`no_std`]: https://rust-embedded.github.io/book/intro/no-std.html

Expand All @@ -140,7 +141,7 @@ target | std | notes
[`aarch64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | ARM64 OpenHarmony
`aarch64-unknown-none-softfloat` | * | Bare ARM64, softfloat
`aarch64-unknown-none` | * | Bare ARM64, hardfloat
[`aarch64-unknown-uefi`](platform-support/unknown-uefi.md) | * | ARM64 UEFI
[`aarch64-unknown-uefi`](platform-support/unknown-uefi.md) | ? | ARM64 UEFI
[`arm-linux-androideabi`](platform-support/android.md) | ✓ | ARMv6 Android
`arm-unknown-linux-musleabi` | ✓ | ARMv6 Linux with musl 1.2.3
`arm-unknown-linux-musleabihf` | ✓ | ARMv6 Linux with musl 1.2.3, hardfloat
Expand All @@ -162,7 +163,7 @@ target | std | notes
[`i686-linux-android`](platform-support/android.md) | ✓ | 32-bit x86 Android [^x86_32-floats-return-ABI]
`i686-unknown-freebsd` | ✓ | 32-bit FreeBSD [^x86_32-floats-return-ABI]
`i686-unknown-linux-musl` | ✓ | 32-bit Linux with musl 1.2.3 [^x86_32-floats-return-ABI]
[`i686-unknown-uefi`](platform-support/unknown-uefi.md) | * | 32-bit UEFI
[`i686-unknown-uefi`](platform-support/unknown-uefi.md) | ? | 32-bit UEFI
[`loongarch64-unknown-none`](platform-support/loongarch-none.md) | * | | LoongArch64 Bare-metal (LP64D ABI)
[`loongarch64-unknown-none-softfloat`](platform-support/loongarch-none.md) | * | | LoongArch64 Bare-metal (LP64S ABI)
[`nvptx64-nvidia-cuda`](platform-support/nvptx64-nvidia-cuda.md) | * | --emit=asm generates PTX code that [runs on NVIDIA GPUs]
Expand Down Expand Up @@ -199,7 +200,7 @@ target | std | notes
[`x86_64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | x86_64 OpenHarmony
[`x86_64-unknown-none`](platform-support/x86_64-unknown-none.md) | * | Freestanding/bare-metal x86_64, softfloat
`x86_64-unknown-redox` | ✓ | Redox OS
[`x86_64-unknown-uefi`](platform-support/unknown-uefi.md) | * | 64-bit UEFI
[`x86_64-unknown-uefi`](platform-support/unknown-uefi.md) | ? | 64-bit UEFI

[^x86_32-floats-x87]: Floating-point support on `i586` targets is non-compliant: the `x87` registers and instructions used for these targets do not provide IEEE-754-compliant behavior, in particular when it comes to rounding and NaN payload bits. See [issue #114479][x86-32-float-issue].
[wasi-rename]: https://github.com/rust-lang/compiler-team/issues/607
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