28 lines
994 B
Rust
28 lines
994 B
Rust
// Targets the Cortex-M4 and Cortex-M7 processors (ARMv7E-M)
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//
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// This target assumes that the device doesn't have a FPU (Floating Point Unit) and lowers all the
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// floating point operations to software routines (intrinsics).
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//
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// As such, this target uses the "soft" calling convention (ABI) where floating point values are
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// passed to/from subroutines via general purpose registers (R0, R1, etc.).
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//
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// To opt-in to hardware accelerated floating point operations, you can use, for example,
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// `-C target-feature=+vfp4` or `-C target-cpu=cortex-m4`.
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use crate::spec::{Target, TargetOptions};
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pub fn target() -> Target {
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Target {
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llvm_target: "thumbv7em-none-eabi".into(),
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pointer_width: 32,
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data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(),
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arch: "arm".into(),
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options: TargetOptions {
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abi: "eabi".into(),
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max_atomic_width: Some(32),
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..super::thumb_base::opts()
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},
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}
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}
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