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https://github.com/esp-rs/esp-hal.git
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9bf70ff792
* Combine `esp-ulp-riscv-hal` and `esp32c6-lp-hal` into a single package * Update LP core examples * Update CI workflow * Fix `LP_UART` example
76 lines
2.5 KiB
Rust
76 lines
2.5 KiB
Rust
use std::{env, error::Error, fs, path::PathBuf};
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// Macros taken from:
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// https://github.com/TheDan64/inkwell/blob/36c3b10/src/lib.rs#L81-L110
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// Given some features, assert that AT MOST one of the features is enabled.
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macro_rules! assert_unique_features {
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() => {};
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( $first:tt $(,$rest:tt)* ) => {
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$(
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#[cfg(all(feature = $first, feature = $rest))]
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compile_error!(concat!("Features \"", $first, "\" and \"", $rest, "\" cannot be used together"));
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)*
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assert_unique_features!($($rest),*);
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};
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}
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// Given some features, assert that AT LEAST one of the features is enabled.
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macro_rules! assert_used_features {
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( $all:tt ) => {
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#[cfg(not(feature = $all))]
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compile_error!(concat!("The feature flag must be provided: ", $all));
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};
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( $($all:tt),+ ) => {
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#[cfg(not(any($(feature = $all),*)))]
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compile_error!(concat!("One of the feature flags must be provided: ", $($all, ", "),*));
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};
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}
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// Given some features, assert that EXACTLY one of the features is enabled.
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macro_rules! assert_unique_used_features {
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( $($all:tt),* ) => {
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assert_unique_features!($($all),*);
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assert_used_features!($($all),*);
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}
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}
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fn main() -> Result<(), Box<dyn Error>> {
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// NOTE: update when adding new device support!
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// Ensure that exactly one chip has been specified:
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assert_unique_used_features!("esp32c6", "esp32s2", "esp32s3");
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// NOTE: update when adding new device support!
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// Determine the name of the configured device:
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let device_name = if cfg!(feature = "esp32c6") {
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"esp32c6"
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} else if cfg!(feature = "esp32s2") {
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"esp32s2"
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} else if cfg!(feature = "esp32s3") {
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"esp32s3"
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} else {
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unreachable!() // We've confirmed exactly one known device was selected
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};
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// Define all necessary configuration symbols for the configured device:
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println!("cargo:rustc-cfg={}", device_name);
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// Put the linker script somewhere the linker can find it:
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let out = PathBuf::from(env::var_os("OUT_DIR").unwrap());
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println!("cargo:rustc-link-search={}", out.display());
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// Copy the required linker script to the `out` directory:
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if cfg!(feature = "esp32c6") {
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fs::copy("ld/link-lp.x", out.join("link.x"))?;
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println!("cargo:rerun-if-changed=ld/link-lp.x");
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} else if cfg!(feature = "esp32s2") || cfg!(feature = "esp32s3") {
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fs::copy("ld/link-ulp.x", out.join("link.x"))?;
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println!("cargo:rerun-if-changed=ld/link-ulp.x");
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}
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// Done!
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Ok(())
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}
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