Activation Record

**Prof. Dr. Sinsi** · 07-22-2012

* 1

&lt compiler&gt (Or data frame, stack frame) A data structure containing the variables belonging to one particular scope (e

g

a procedure body), as well as links to other activation records

Activation records are usually created (on the stack) on entry to a block and destroyed on exit

If a procedure or function may be returned as a result, stored in a variable and used in an outer scope then its activation record must be stored in a heap so that its variables still exist when it is used

Variables in the current scope are accessed via the frame pointer which points to the current activation record

Variables in an outer scope are accessed by following chains of links between activation records

There are two kinds of link - the static link and the dynamic link

(1995-03-07)
2

data frame
English Related Words* academic record
* access record
* accounting record
* activation
* activation analysis
* activation code
* activation cross-section
* activation curve
* activation detector
* activation energy
* activation foil
* activation of tube seat control
* activation potential
* add record
* addition record

07-22-2012	#1
Prof. Dr. Sinsi	Activation Record * 1&lt compiler&gt (Or data frame, stack frame) A data structure containing the variables belonging to one particular scope (eg a procedure body), as well as links to other activation records Activation records are usually created (on the stack) on entry to a block and destroyed on exit If a procedure or function may be returned as a result, stored in a variable and used in an outer scope then its activation record must be stored in a heap so that its variables still exist when it is used Variables in the current scope are accessed via the frame pointer which points to the current activation record Variables in an outer scope are accessed by following chains of links between activation records There are two kinds of link - the static link and the dynamic link (1995-03-07) 2data frame English Related Words* academic record * access record * accounting record * activation * activation analysis * activation code * activation cross-section * activation curve * activation detector * activation energy * activation foil * activation of tube seat control * activation potential * add record * addition record