To prevent attacks that "smash" them, some implementations insert a "canary" value adjacent to a pointer to one end.
These structures are implemented on x86 architectures using the SP and SS registers. To prevent attacks that "smash" them, some implementations insert a "canary" value adjacent to a pointer to one end. One type of this structure is composed of a number of "frames," each of which stores information about a given subroutine. Unlike finite state machines, PDAs incorporate one of these structures. One of them is used to evaluate arithmetic expressions in the language Forth, which uses reverse Polish notation. In languages that don't implement tail calls, infinite recursion results in one of these structures "overflowing." Things are added to and removed from these structures at one end using operations called "push" and "pop." For 10 points, name these last-in, first-out data structures.
These structures are implemented on x86 architectures using the SP and SS registers.
stacks [or call stacks; or execution stacks; or control stacks; accept stack frames]