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f1246f84e0
This change finally adds capabilities to handles. Included changes: - j6_handle_t is now again 64 bits, with the highest 8 bits being a type code, and the next highest 24 bits being the capability mask, so that programs can check type/caps without calling the kernel. - The definitions grammar now includes a `capabilities [ ]` section on objects, to list what capabilities are relevant. - j6/caps.h is auto-generated from object capability lists - init_libj6 again sets __handle_self and __handle_sys, this is a bit of a hack. - A new syscall, j6_handle_list, will return the list of existing handles owned by the calling process. - syscall_verify.cpp.cog now actually checks that the needed capabilities exist on handles before allowing the call.
32 lines
885 B
Modula-2
32 lines
885 B
Modula-2
import "objects/kobject.def"
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# Processes are a collection of handles and a virtual memory
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# space inside which threads are run.
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object process : kobject {
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uid 0c69ee0b7502ba31
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capabilities [
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kill
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create_thread
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]
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# Create a new empty process
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method create [constructor]
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# Stop all threads and exit the given process
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method kill [destructor cap:kill]
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# Stop all threads and exit the current process
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method exit [static] {
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param result int32 # The result to retrun to the parent process
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}
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# Give the given process a handle that points to the same
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# object as the specified handle.
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method give_handle {
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param target object kobject [handle] # A handle in the caller process to send
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param received object kobject [out optional] # The handle as the recipient will see it
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}
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}
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