#![deny(warnings)]
use std::{env, error::Error};
use rustc_version::Channel;
fn main() -> Result<(), Box<dyn Error>> {
let target = env::var("TARGET")?;
if target.starts_with("thumbv6m-") {
println!("cargo:rustc-cfg=armv6m");
} else if target.starts_with("thumbv7m-") {
println!("cargo:rustc-cfg=armv7m");
} else if target.starts_with("thumbv7em-") {
println!("cargo:rustc-cfg=armv7m");
} else if target.starts_with("armv7r-") | target.starts_with("armebv7r-") {
println!("cargo:rustc-cfg=armv7r");
} else if target.starts_with("thumbv8m.base") {
println!("cargo:rustc-cfg=armv8m_base");
} else if target.starts_with("thumbv8m.main") {
println!("cargo:rustc-cfg=armv8m_main");
} else if target.starts_with("armv7-") | target.starts_with("armv7a-") {
println!("cargo:rustc-cfg=armv7a");
}
let is_avr = env::var("CARGO_CFG_TARGET_ARCH").as_deref() == Ok("avr");
if is_avr {
} else {
match &target[..] {
"avr-unknown-gnu-atmega328"
| "bpfeb-unknown-none"
| "bpfel-unknown-none"
| "msp430-none-elf"
| "thumbv4t-none-eabi"
=> {}
_ => {
println!("cargo:rustc-cfg=has_cas");
}
}
};
if is_avr {
} else {
match &target[..] {
"msp430-none-elf"
=> {}
_ => {
println!("cargo:rustc-cfg=has_atomics");
}
}
};
if is_avr {
println!("cargo:rustc-cfg=full_atomic_polyfill");
println!("cargo:rustc-cfg=cas_atomic_polyfill");
} else {
match &target[..] {
"riscv32i-unknown-none-elf" | "riscv32imc-unknown-none-elf" => {
println!("cargo:rustc-cfg=full_atomic_polyfill");
println!("cargo:rustc-cfg=cas_atomic_polyfill");
}
"thumbv6m-none-eabi" | "xtensa-esp32s2-none-elf" => {
println!("cargo:rustc-cfg=cas_atomic_polyfill");
}
_ => {}
}
}
if !matches!(
rustc_version::version_meta().unwrap().channel,
Channel::Stable | Channel::Beta
) {
println!("cargo:rustc-cfg=unstable_channel");
}
Ok(())
}