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// Generic AArch64 target for NuttX OS
//
// Can be used in conjunction with the `target-feature` and
// `target-cpu` compiler flags to opt-in more hardware-specific
// features.
//
// For example, `-C target-cpu=cortex-a53`.
use crate::spec::{
Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, SanitizerSet, StackProbeType, Target,
TargetMetadata, TargetOptions, cvs,
};
pub(crate) fn target() -> Target {
let opts = TargetOptions {
linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes),
linker: Some("rust-lld".into()),
// Enable the Cortex-A53 errata 843419 mitigation by default
pre_link_args: TargetOptions::link_args(
LinkerFlavor::Gnu(Cc::No, Lld::No),
&["--fix-cortex-a53-843419"],
),
features: "+v8a,+strict-align,+neon,+fp-armv8".into(),
supported_sanitizers: SanitizerSet::KCFI | SanitizerSet::KERNELADDRESS,
relocation_model: RelocModel::Static,
disable_redzone: true,
max_atomic_width: Some(128),
stack_probes: StackProbeType::Inline,
panic_strategy: PanicStrategy::Abort,
families: cvs!["unix"],
os: "nuttx".into(),
..Default::default()
};
Target {
llvm_target: "aarch64-unknown-none".into(),
metadata: TargetMetadata {
description: Some("AArch64 NuttX".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: opts,
}
}
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