compiler/rustc_target/src/spec/riscv32imc_esp_espidf.rs

   1 use crate::spec::{cvs, PanicStrategy, RelocModel, Target, TargetOptions};
   2
   3 pub fn target() -> Target {
   4     Target {
   5         data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(),
   6         llvm_target: "riscv32".into(),
   7         pointer_width: 32,
   8         arch: "riscv32".into(),
   9
  10         options: TargetOptions {
  11             families: cvs!["unix"],
  12             os: "espidf".into(),
  13             env: "newlib".into(),
  14             vendor: "espressif".into(),
  15             linker: Some("riscv32-esp-elf-gcc".into()),
  16             cpu: "generic-rv32".into(),
  17
  18             // While the RiscV32IMC architecture does not natively support atomics, ESP-IDF does support
  19             // the __atomic* and __sync* GCC builtins, so setting `max_atomic_width` to `Some(64)`
  20             // and `atomic_cas` to `true` will cause the compiler to emit libcalls to these builtins.
  21             //
  22             // Support for atomics is necessary for the Rust STD library, which is supported by the ESP-IDF framework.
  23             max_atomic_width: Some(64),
  24             atomic_cas: true,
  25
  26             features: "+m,+c".into(),
  27             panic_strategy: PanicStrategy::Abort,
  28             relocation_model: RelocModel::Static,
  29             emit_debug_gdb_scripts: false,
  30             eh_frame_header: false,
  31             ..Default::default()
  32         },
  33     }
  34 }