Macro solana_msg_utils::msg_trace

macro_rules! msg_trace {
    ($($args:tt)+) => { ... };
}

msg_trace! is a wrapper around the msg! macro, that faciliates logging trace level logs, which include the file and line number from where the message was emitted.

if the total msg size is less than or equal to 512 bytes, then arrform! is used for the optimize (heap-less) message formatting. messages larger than 512 bytes use the traditional format!.