Skip to content

    Fpmprotect

    Set memory protection.

    Declaration

    Source position: bunxh.inc line 120

    function Fpmprotect(start: pointer; len: size_t; prot: cint) : cint;external name 'FPC_SYSC_MPROTECT';

    Description

    fpmprotect sets memory protection on a certain block of memory. The memory block to protect starts at adr and has size len. The prot argument specifies the kind of protection to apply, and is a bit-wise OR-ed combination of the following:

    PROT_NONE
    Memory cannot be accessed
    PROT_READ
    Memory can be read
    PROT_WRITE
    Memory can be written
    PROT_EXEC
    Memory can be executed
    PROT_SEM
    Memory can be used for atomic operations
    PROT_SAO
    Memory must have strong access order (powerPC only).