d4/d82/mprotect_8c_source.html

#include <stdio.h>

#include <sys/fs.h>


#include "user/common/syscalls.h"


void* mprotect(void* address, size_t length, prot_t prot)

{

    void* result = _syscall_mprotect(address, length, prot);

    if (result == NULL)

    {

        errno = _syscall_errno();

    }

    return result;

}


address
static uintptr_t address
Mapped virtual address of the HPET registers.
Definition hpet.c:96

errno
#define errno
Error number variable.
Definition errno.h:27

mprotect
void * mprotect(void *address, size_t length, prot_t prot)
System call to change the protection flags of memory.
Definition mprotect.c:6

prot_t
prot_t
Memory protection flags.
Definition proc.h:122

NULL
#define NULL
Pointer error value.
Definition NULL.h:25

fs.h

stdio.h

syscalls.h

_syscall_mprotect
static void * _syscall_mprotect(void *address, size_t length, prot_t prot)
Definition syscalls.h:187

_syscall_errno
static errno_t _syscall_errno(void)
Definition syscalls.h:107