diff options
Diffstat (limited to 'pk/mmap.h')
-rw-r--r-- | pk/mmap.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pk/mmap.h b/pk/mmap.h new file mode 100644 index 0000000..e3c2035 --- /dev/null +++ b/pk/mmap.h @@ -0,0 +1,34 @@ +#ifndef _MMAP_H +#define _MMAP_H + +#include "vm.h" +#include "syscall.h" +#include "encoding.h" +#include "file.h" +#include <stddef.h> + +#define PROT_NONE 0 +#define PROT_READ 1 +#define PROT_WRITE 2 +#define PROT_EXEC 4 + +#define MAP_PRIVATE 0x2 +#define MAP_FIXED 0x10 +#define MAP_ANONYMOUS 0x20 +#define MAP_POPULATE 0x8000 +#define MREMAP_FIXED 0x2 + +extern int have_vm; +uintptr_t pk_vm_init(); +int handle_page_fault(uintptr_t vaddr, int prot); +void populate_mapping(const void* start, size_t size, int prot); +void __map_kernel_range(uintptr_t va, uintptr_t pa, size_t len, int prot); +int __valid_user_range(uintptr_t vaddr, size_t len); +uintptr_t __do_mmap(uintptr_t addr, size_t length, int prot, int flags, file_t* file, off_t offset); +uintptr_t do_mmap(uintptr_t addr, size_t length, int prot, int flags, int fd, off_t offset); +int do_munmap(uintptr_t addr, size_t length); +uintptr_t do_mremap(uintptr_t addr, size_t old_size, size_t new_size, int flags); +uintptr_t do_mprotect(uintptr_t addr, size_t length, int prot); +uintptr_t do_brk(uintptr_t addr); + +#endif |