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exchange_registers(), modified thread_control calls seem to work

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- Fixed do_mmap() so that it returns mapped address, and various bugs.
- A child seems to fork with new setup, but with incorrect return value.
  Need to use and test exregs() for fork + clone.
- Shmat searches an unmapped area if input arg is invalid, do_mmap()
  should do this.
This commit is contained in:
Bahadir Balban
2008-09-15 15:59:44 +03:00
parent 4fb5277123
commit df2317e7aa
17 changed files with 196 additions and 284 deletions
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4
tasks/mm0/include/mmap.h
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@@ -26,8 +26,8 @@ struct vm_area *vma_new(unsigned long pfn_start, unsigned long npages,
int do_munmap(void *vaddr, unsigned long size, struct tcb *task);
int do_mmap(struct vm_file *mapfile, unsigned long f_offset, struct tcb *t,
unsigned long map_address, unsigned int flags, unsigned int pages);
void *do_mmap(struct vm_file *mapfile, unsigned long f_offset, struct tcb *t,
unsigned long map_address, unsigned int flags, unsigned int pages);
int mmap_address_validate(struct tcb *t, unsigned long map_address,
unsigned int vm_flags);