Commit 63ce7820 authored by Mathieu Maret's avatar Mathieu Maret

Add errno.h

parent fd153e30
#pragma once
#define EPERM 1 /* Operation not permitted */
#define ENOENT 2 /* No such file or directory */
#define ESRCH 3 /* No such process */
#define EINTR 4 /* Interrupted system call */
#define EIO 5 /* I/O error */
#define ENXIO 6 /* No such device or address */
#define E2BIG 7 /* Argument list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF 9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
......@@ -116,3 +116,19 @@ int pagingSetup(paddr_t upperKernelAddr)
"2:\n\t" ::"r"(cr3):"memory","eax");
return 0;
}
int pageMap(vaddr_t vaddr, paddr_t paddr, int flags)
{
uint pdEntry = vaddr >> (PD_SHIFT);
uint ptEntry = (vaddr >> PT_SHIFT) & PTE_MASK;
// Thank to mirroring, we can access the PD
struct pde *pd = (struct pde *)(PD_MIRROR_PAGE_IDX * 4 * (1 << 20) +
PD_MIRROR_PAGE_IDX * 4 * (1 << 10));
struct pte *pt = (struct pte *)(PD_MIRROR_PAGE_IDX * 4 * (1 << 20) +
PD_MIRROR_PAGE_IDX * 4 * (1 << 10));
if(pd[pdEntry].present){
}
}
......@@ -2,3 +2,5 @@
#include "types.h"
int pagingSetup(paddr_t upperKernelAddr);
int pageMap(vaddr_t vaddr, paddr_t paddr, int flags);
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