rustc_target/spec/targets/
armv7a_none_eabihf.rs

1// Generic ARMv7-A target for bare-metal code - floating point enabled (assumes
2// FPU is present and emits FPU instructions)
3//
4// This is basically the `armv7-unknown-linux-gnueabihf` target with some
5// changes (list in `armv7a_none_eabi.rs`) to bring it closer to the bare-metal
6// `thumb` & `aarch64` targets.
7
8use crate::spec::{
9    Cc, FloatAbi, LinkerFlavor, Lld, PanicStrategy, RelocModel, Target, TargetOptions,
10};
11
12pub(crate) fn target() -> Target {
13    let opts = TargetOptions {
14        abi: "eabihf".into(),
15        llvm_floatabi: Some(FloatAbi::Hard),
16        linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes),
17        linker: Some("rust-lld".into()),
18        features: "+v7,+vfp3,-d32,+thumb2,-neon,+strict-align".into(),
19        relocation_model: RelocModel::Static,
20        disable_redzone: true,
21        max_atomic_width: Some(64),
22        panic_strategy: PanicStrategy::Abort,
23        emit_debug_gdb_scripts: false,
24        // GCC defaults to 8 for arm-none here.
25        c_enum_min_bits: Some(8),
26        ..Default::default()
27    };
28    Target {
29        llvm_target: "armv7a-none-eabihf".into(),
30        metadata: crate::spec::TargetMetadata {
31            description: Some("Bare Armv7-A, hardfloat".into()),
32            tier: Some(3),
33            host_tools: Some(false),
34            std: Some(false),
35        },
36        pointer_width: 32,
37        data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(),
38        arch: "arm".into(),
39        options: opts,
40    }
41}