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use crate::spec::{cvs, Target, TargetOptions};
use crate::spec::{LinkerFlavor, PanicStrategy, RelocModel};
pub fn target() -> Target {
Target {
data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(),
llvm_target: "riscv32".into(),
pointer_width: 32,
arch: "riscv32".into(),
options: TargetOptions {
families: cvs!["unix"],
os: "espidf".into(),
env: "newlib".into(),
vendor: "espressif".into(),
linker_flavor: LinkerFlavor::Gcc,
linker: Some("riscv32-esp-elf-gcc".into()),
cpu: "generic-rv32".into(),
// While the RiscV32IMC architecture does not natively support atomics, ESP-IDF does support
// the __atomic* and __sync* GCC builtins, so setting `max_atomic_width` to `Some(64)`
// and `atomic_cas` to `true` will cause the compiler to emit libcalls to these builtins.
//
// Support for atomics is necessary for the Rust STD library, which is supported by the ESP-IDF framework.
max_atomic_width: Some(64),
atomic_cas: true,
features: "+m,+c".into(),
panic_strategy: PanicStrategy::Abort,
relocation_model: RelocModel::Static,
emit_debug_gdb_scripts: false,
eh_frame_header: false,
..Default::default()
},
}
}
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