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support mremap(2)

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fixes #22
This commit is contained in:
NAKAMURA Gou
2014-07-01 18:52:31 +09:00
parent 90aaf9dc9c
commit 11bb334bd4
7 changed files with 335 additions and 0 deletions
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3
kernel/include/process.h
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@@ -29,6 +29,7 @@
#define VR_DEMAND_PAGING 0x1000
#define VR_PRIVATE 0x2000
#define VR_LOCKED 0x4000
#define VR_FILEOFF 0x8000 /* remap_file_pages()ed range */
#define VR_PROT_NONE 0x00000000
#define VR_PROT_READ 0x00010000
#define VR_PROT_WRITE 0x00020000
@@ -236,6 +237,8 @@ struct vm_range *next_process_memory_range(
struct process_vm *vm, struct vm_range *range);
struct vm_range *previous_process_memory_range(
struct process_vm *vm, struct vm_range *range);
int extend_up_process_memory_range(struct process_vm *vm,
struct vm_range *range, uintptr_t newend);
int page_fault_process(struct process *proc, void *fault_addr, uint64_t reason);
int remove_process_region(struct process *proc,