How to check final binary size?

[acedogblast]

Cargo build generates an ELF executable file as a output format which contains many additional data that will not be transferred to the CH32XXX chip. Is there a way for me to know the exact size of my firmware binary so I can keep track of how much flash is being used?

So far I found that cargo bloat can give me the size of the .text section of the binary's ELF format. Is there a better way?

[romainreignier]

You can use cargo size:

cargo install cargo-binutils
rustup component add llvm-tools
cargo size --release

[andelf]

The traditional method is objcopy -O binary.
In Rust, many new tools are invented.

wlink and wchisp also print firmware info when flashing.