28.2.21 __builtin_edsoffset

Description

Returns the eds page offset of the object whose address is given as a parameter. The argument p must be the address of an object in an Extended Data Space (EDS); otherwise an error message is produced and the compilation fails. See the space attribute in Variable Attributes.

Prototype

unsigned int __builtin_edsoffset(const void *p);

Argument

p – object address

Return Value

Returns the eds page number offset of the object whose address is given as a parameter.

Assembler Operator/ Machine Instruction

edsoffset

Error Messages

The following error message is produced when this function is used incorrectly:

“Argument to __builtin_edsoffset() is not the address of an object in extended data space.”

The argument must be an explicit object address.

For example, if obj is object in an executable or read-only section, the following syntax is valid:

unsigned page = __builtin_edsoffset(&obj);