Function env_root_changes_with_extra_const

crates/ixon/src/serialize.rs:2510–2520

()

  /// the mapping stays alive as long as any consumer holds the env or
  /// any clone of a `LazyConstant` from it.
  ///
  /// Sections are handled the same way as `get_anon`: §1 blobs are
  /// heap-copied and hash-verified (small, eagerly consumed), §3
  /// anon_hints is read into `env.anon_hints`, and the reader stops
  /// there — the metadata sections (§4-§6) are never touched.
  ///
  /// On Linux, the kernel's adaptive readahead handles the linear
  /// scan during section parsing efficiently; subsequent random
  /// access from worker kernel-check threads pages in as needed.
  #[cfg(not(target_arch = "riscv64"))]
  pub fn get_anon_mmap(path: &std::path::Path) -> Result<Self, String> {
    let file = std::fs::File::open(path).map_err(|e| {
      format!("Env::get_anon_mmap: open {}: {e}", path.display())
    })?;