| 119,13 → 119,13 |
|---|
| * The created address space area is added to the target address space. |
| * |
| * @param as Target address space. |
| * @param type Type of area. |
| * @param flags Flags of the area. |
| * @param size Size of area in multiples of PAGE_SIZE. |
| * @param base Base address of area. |
| * |
| * @return Address space area on success or NULL on failure. |
| */ |
| as_area_t *as_area_create(as_t *as, as_area_type_t type, size_t size, __address base) |
| as_area_t *as_area_create(as_t *as, int flags, size_t size, __address base) |
| { |
| ipl_t ipl; |
| as_area_t *a; |
| 145,7 → 145,7 |
|---|
| spinlock_initialize(&a->lock, "as_area_lock"); |
| |
| link_initialize(&a->link); |
| a->type = type; |
| a->flags = flags; |
| a->size = size; |
| a->base = base; |
| |
| 326,18 → 326,17 |
|---|
| { |
| int flags; |
| |
| switch (a->type) { |
| case AS_AREA_TEXT: |
| flags = PAGE_EXEC | PAGE_READ | PAGE_USER | PAGE_PRESENT | PAGE_CACHEABLE; |
| break; |
| case AS_AREA_DATA: |
| case AS_AREA_STACK: |
| flags = PAGE_READ | PAGE_WRITE | PAGE_USER | PAGE_PRESENT | PAGE_CACHEABLE; |
| break; |
| default: |
| panic("unexpected as_area_type_t %d", a->type); |
| } |
| flags = PAGE_USER | PAGE_PRESENT | PAGE_CACHEABLE; |
| |
| if (a->flags & AS_AREA_READ) |
| flags |= PAGE_READ; |
| |
| if (a->flags & AS_AREA_WRITE) |
| flags |= PAGE_WRITE; |
| |
| if (a->flags & AS_AREA_EXEC) |
| flags |= PAGE_EXEC; |
| |
| return flags; |
| } |
| |