Add aarch64_be-unknown-linux-musl target #144551
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| use rustc_abi::Endian; | ||
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| use crate::spec::{SanitizerSet, StackProbeType, Target, TargetMetadata, TargetOptions, base}; | ||
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| pub(crate) fn target() -> Target { | ||
| let mut base = base::linux_musl::opts(); | ||
| base.max_atomic_width = Some(128); | ||
| base.supports_xray = true; | ||
| base.features = "+v8a".into(); | ||
| base.stack_probes = StackProbeType::Inline; | ||
| base.supported_sanitizers = SanitizerSet::ADDRESS | ||
| | SanitizerSet::CFI | ||
| | SanitizerSet::LEAK | ||
| | SanitizerSet::MEMORY | ||
| | SanitizerSet::THREAD; | ||
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| Target { | ||
| llvm_target: "aarch64_be-unknown-linux-musl".into(), | ||
| metadata: TargetMetadata { | ||
| description: Some("ARM64 Linux (big-endian) with musl-libc 1.2.5".into()), | ||
| tier: Some(3), | ||
| host_tools: Some(false), | ||
| std: Some(true), | ||
| }, | ||
| pointer_width: 64, | ||
| data_layout: "E-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(), | ||
| arch: "aarch64".into(), | ||
| options: TargetOptions { | ||
| mcount: "\u{1}_mcount".into(), | ||
| endian: Endian::Big, | ||
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There was a problem hiding this comment. Is there a reason the |
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| ..base | ||
| }, | ||
| } | ||
| } | ||
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| # aarch64_be-unknown-linux-musl | ||
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| **Tier: 3** | ||
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| ARM64 Linux (big-endian) with musl-libc. | ||
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| ## Target maintainers | ||
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| [@neuschaefer](https://github.com/neuschaefer) | ||
| [@Gelbpunkt](https://github.com/Gelbpunkt) | ||
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| ## Requirements | ||
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| The target requires a `aarch64_be-*-linux-musl` toolchain, which likely has to | ||
| be built from source because this is a rare combination. [Buildroot] provides | ||
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There was a problem hiding this comment. I just noticed that musl.cc/musl-cross-make includes an aarch64_be toolchain, which necessitates some rephrasing in this paragraph. |
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| a way of doing so: | ||
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| - select _Target options_ → _Target Architecture_ → _AArch64 (big endian)_ | ||
| - select _Toolchain_ → _C library_ → _musl_ | ||
| - select _Toolchain_ → _Enable C++ support_ | ||
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| Host tools are supported. | ||
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| [Buildroot]: https://buildroot.org/ | ||
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| ## Building the target | ||
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| The target can be enabled in bootstrap.toml: | ||
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| ```toml | ||
| [build] | ||
| target = ["aarch64_be-unknown-linux-musl"] | ||
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| [target.aarch64_be-unknown-linux-musl] | ||
| cc = "/path/to/buildroot/host/bin/aarch64_be-buildroot-linux-musl-cc" | ||
| cxx = "/path/to/buildroot/host/bin/aarch64_be-buildroot-linux-musl-c++" | ||
| linker = "/path/to/buildroot/host/bin/aarch64_be-buildroot-linux-musl-cc" | ||
| ar = "/path/to/buildroot/host/bin/aarch64_be-buildroot-linux-musl-ar" | ||
| ranlib = "/path/to/buildroot/host/bin/aarch64_be-buildroot-linux-musl-ranlib" | ||
| musl-root = "/path/to/buildroot/staging" | ||
| crt-static = "/path/to/buildroot/target" | ||
| ``` | ||
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| ## Testing | ||
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| Binaries can be run under `qemu-aarch64_be` or under a big-endian Linux kernel. | ||
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Should outline-atomics be included here, as per #144429?