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cortex-m-rt: Fix build command in docs #611

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Oct 6, 2025
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cortex-m-rt: Fix build command in docs #611

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17 changes: 15 additions & 2 deletions cortex-m-rt/src/lib.rs
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Expand Up @@ -153,12 +153,25 @@
//! }
//! EOF
//!
//! $ cargo rustc --target thumbv7m-none-eabi -- -C link-arg=-nostartfiles -C link-arg=-Tlink.x
//!
//! $ RUSTFLAGS="-C link-arg=-Tlink.x" cargo build --target thumbv7m-none-eabi
//! $ file target/thumbv7m-none-eabi/debug/app
//! app: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, (..)
//! ```
//!
//! To avoid typing the long command, you can create a `.cargo/config.toml` file:
//!
//! ```toml
//! [target.thumbv7m-none-eabi]
//! rustflags = ["-C", "link-arg=-Tlink.x"]
//!
//! [build]
//! target = "thumbv7m-none-eabi"
//! ```
//!
//! With this configuration, a simple `cargo build` is enough.
//!
//! For Cortex-M4 devices, use the target thumbv7em-none-eabi instead.
//!
//! # Optional features
//!
//! ## `device`
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