Bahadir Balban b369ff6efe Added copy-on-write shared memory but untested yet. ...

For anonymous shm, mmap now adds a shm_file and devzero behind it
as two vm_objects. Faults are handled by copy_on_write(). Just as
shadows copy r/w pages from original files, it should copy r/w
pages from devzero into the shm_file in front.

shmat/shmget uses mmap to set-up their areas.

Untested yet so bugs expected.

	modified:   tasks/libl4/src/init.c
	modified:   tasks/mm0/include/shm.h
	modified:   tasks/mm0/include/vm_area.h
	modified:   tasks/mm0/src/fault.c
	modified:   tasks/mm0/src/mmap.c
	modified:   tasks/mm0/src/shm.c

2008-03-21 15:40:54 +00:00

..

include/l4lib

Managed to pass utcb information to tasks via an ipc() call.

2008-03-19 02:55:31 +00:00

src

Added copy-on-write shared memory but untested yet.

2008-03-21 15:40:54 +00:00

SConstruct

shmat/shmget for utcbs are working for now.

2008-03-19 22:26:38 +00:00