Control Link Record For Free

1) A control link from record A points to the previous record on the stack. 2) Points to activation record of calling procedure. 3) The chain of control links traces the dynamic execution of the program.

The activation record is temporary - it is allocated when the function is called (becomes active) and it is deallocated when the function returns (becomes inactive). Once an activation record is deallocated, the memory it occupied is available for use when new activation records are created.

Control arms or Control links are critical safety components of a vehicle suspension system, primarily manufactured for the rail vehicles to support axle location and to resist braking & traction forces. It can also be used in other industries vehicle suspension systems like Automotive, Off-highway etc.

Compiler Design An activation tree is a tree structure that represents function calls made by a program during execution. When a function is called a new activation record is pushed to the stack and popped from the stack when the function returns.

Activation record is used to manage the information needed by a single execution of a procedure. An activation record is pushed into the stack when a procedure is called and it is popped when the control returns to the caller function.

Simple Google search for the two topics will give you basic definitions. Activation record is used by Compiler for maintaining the information for function call, while a Process Control Block would be used by OS to maintain the program in memory.

Whenever a procedure is executed, its activation record is stored on the stack, also known as control stack. When a procedure calls another procedure, the execution of the caller is suspended until the called procedure finishes execution.