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use crate::abi::Endian;
use crate::spec::{base, SanitizerSet, StackProbeType, Target};

pub fn target() -> Target {
    let mut base = base::linux_gnu::opts();
    base.endian = Endian::Big;
    // z10 is the oldest CPU supported by LLVM
    base.cpu = "z10".into();
    // FIXME: The ABI implementation in cabi_s390x.rs is for now hard-coded to assume the no-vector
    // ABI. Pass the -vector feature string to LLVM to respect this assumption. On LLVM < 16, we
    // also strip v128 from the data_layout below to match the older LLVM's expectation.
    base.features = "-vector".into();
    base.max_atomic_width = Some(64);
    base.min_global_align = Some(16);
    base.stack_probes = StackProbeType::Inline;
    base.supported_sanitizers =
        SanitizerSet::ADDRESS | SanitizerSet::LEAK | SanitizerSet::MEMORY | SanitizerSet::THREAD;

    Target {
        llvm_target: "s390x-unknown-linux-gnu".into(),
        metadata: crate::spec::TargetMetadata {
            description: Some("S390x Linux (kernel 3.2, glibc 2.17)".into()),
            tier: Some(2),
            host_tools: Some(true),
            std: Some(true),
        },
        pointer_width: 64,
        data_layout: "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64".into(),
        arch: "s390x".into(),
        options: base,
    }
}