Module goblin::mach::bind_opcodes [−][src]
Expand description
Bind opcodes are interpreted by the dynamic linker to efficiently collect every symbol imported by this binary, and from which library using two-level namespacing
Some uses of external symbols do not need to be bound immediately. Instead they can be lazily bound on first use. The lazy_bind are contains a stream of BIND opcodes to bind all lazy symbols. Normal use is that dyld ignores the lazy_bind section when loading an image. Instead the static linker arranged for a lazy pointer to initially point to a helper function which pushes the offset into the lazy_bind area for the symbol needing to be bound, then jumps to dyld which simply adds the offset to lazy_bind_off to get the information on what to bind.