What are common challenges faced by embedded Rust developers when integrating Rust code with existing C or C++ codebases?

Embedded Rust Developers often work with legacy systems that are primarily written in C or C++. A common challenge is ensuring seamless interoperability between Rust and these languages, especially regarding memory safety, calling conventions, and build system integration. Developers must also carefully manage resource constraints and hardware-specific requirements, since embedded environments typically have limited memory and processing power. Close collaboration with firmware engineers and hardware designers is often necessary to address these challenges effectively.