User`s guide

Macros for Porting from VAX to Alpha or I64

$LOCKED_PAGE_END

Description

$LOCKED_PAGE_END is used with $LOCKED_PAGE_START to delineate

code that may be locked at image initialization time by the $LOCK_PAGE_INIT

macro. The code delineated by these macros must contain complete routines—

execution cannot fall through either macro, nor can you branch into or out of the

locked code. Any attempt to branch into or out of the locked code section or to fall

through the macros will be ﬂagged by the compiler with an error.

$LOCKED_PAGE_START

Marks the start of a section of code that may be locked at image initialization

time by the $LOCK_PAGE_INIT macro.

Format

$LOCKED_PAGE_START

There are no parameters for this macro.

Description

$LOCKED_PAGE_START is used with $LOCKED_PAGE_END to delineate

code that may be locked at image initialization time by the $LOCK_PAGE_INIT

macro. The code delineated by these macros must contain complete routines—

execution may not fall through either macro, nor may the locked code be branched

into or out of. Any attempt to branch into or out of the locked code section or to

fall through the macros will be ﬂagged by the compiler with an error.

D.3.2 On-the-Fly Lockdown

These macros are used for on-the-ﬂy lockdown:

• $LOCK_PAGE

• $UNLOCK_PAGE

$LOCK_PAGE

Marks the beginning of a section of code to be locked on-the-ﬂy.

Format

$LOCK_PAGE [error]

Parameters

[error]

Address to branch to if one of the $LKWSET calls fail.

Macros for Porting from VAX to Alpha or I64 D–9