Arm VERSION 1.2 Uživatelský manuál stáhnout pdf (Strana 315)

100

101

Directives Reference

7.5 Frame description directives

This section describes the following directives:

• FRAME ADDRESS on page 7-34

• FRAME POP on page 7-35

• FRAME PUSH on page 7-36

• FRAME REGISTER on page 7-37

• FRAME RESTORE on page 7-38

• FRAME SAVE on page 7-39

• FRAME STATE REMEMBER on page 7-40

• FRAME STATE RESTORE on page 7-41

• FUNCTION or PROC on page 7-42

• ENDFUNC or ENDP on page 7-43.

Correct use of these directives:

• helps you to avoid errors in function construction, particularly when you are

modifying existing code

• allows the assembler to alert you to errors in function construction

• enables backtracing of function calls during debugging

• allows the debugger to profile assembler functions.

If you require profiling of assembler functions, but do not need frame description

directives for other purposes:

• you must use the

FUNCTION

and

ENDFUNC

, or

PROC

and

ENDP

, directives

• you can omit the other

FRAME

directives

• you only need to use the

FUNCTION

and

ENDFUNC

directives for the functions you

want to profile.

In DWARF 2, the canonical frame address is an address on the stack specifying where

the call frame of an interrupted function is located.

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