mpx
Directs the compiler to pass Intel®
Memory Protection Extensions (Intel® MPX) bounds information along with any
pointer-typed parameters.
Syntax
Windows* OS:
__declspec(mpx)
Linux* OS:
__attribute__((mpx))
Arguments
- None
Description
When a function declared with this keyword is called,
any pointer-typed parameters passed to the function will also have Intel® MPX
bounds information passed. If the called function returns a pointer-typed
object, the compiler will expect the function to return Intel® MPX bounds
information along with the pointer object. Similarly, if this keyword is
applied to a function definition, the function will expect the caller to pass
Intel® MPX bounds information along with any pointer-type parameters. If the
function returns a pointer-typed object, Intel® MPX bounds information will be
returned with the object.
The usage of this attribute is intended for Windows
code that contains hand-written Intel® MPX enhancements based on Intel® MPX
inline assembly or calls to Intel® MPX intrinsics, and where the user does not
wish to enable automatic Intel® MPX code generation.