Struct HotpatchModuleCache 

pub struct HotpatchModuleCache {
    pub lib: PathBuf,
    pub symbols: SymbolTable,
    pub aslr_reference: u64,
}

Pre-parsed snapshot of the original (== “fat”) binary. Built once per dev-server run; subsequent JumpTable construction reads from here without touching the disk again.

Fields

lib: PathBuf

Original binary path on the host. Useful in error messages.

symbols: SymbolTable

All symbols projected through parse_symbol_table_from_bytes.

aslr_reference: u64

Static virtual address of whisker_aslr_anchor in the host binary. Goes straight into subsecond_types::JumpTable::aslr_reference. See module docs for why this is the anchor symbol’s address rather than the file’s image base, and why we use a dedicated anchor rather than upstream subsecond’s main.

Implementations

impl HotpatchModuleCache

pub fn from_path(path: impl Into<PathBuf>) -> Result<Self>

Read the binary at path and capture everything we’ll need for hot-patching. Errors out (rather than partially populating the struct) on read / parse failure — there’s no useful cache to keep around if the original binary is malformed.

pub fn symbol_count(&self) -> usize

Convenience accessor (saves the caller a cache.symbols.by_name where they really just want a lookup).

pub fn lib_path(&self) -> &Path

Convenience: borrow path back as a &Path.

Trait Implementations

impl Clone for HotpatchModuleCache

fn clone(&self) -> HotpatchModuleCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HotpatchModuleCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.