bdae812274
Added the handle_clone syscall which allows for cloning a handle with a subset of the original handle's capabilities. Related changes: - srv.init now calls handle_clone on its system handle, and load_program was changed to allow this second system handle to be passed to loaded programs instead. However, as drv.uart is still a driver AND a log reader, this new handle is not actually passed yet. - The definition parser was using a set for the cap list, which meant the order (and thus values) of caps was not static. - Some code in objects/handle.h was made more explicit about what bits meant what.
46 lines
1.2 KiB
Modula-2
46 lines
1.2 KiB
Modula-2
import "objects/kobject.def"
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import "objects/channel.def"
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import "objects/endpoint.def"
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import "objects/event.def"
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import "objects/process.def"
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import "objects/system.def"
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import "objects/thread.def"
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import "objects/vma.def"
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interface syscalls [syscall] {
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uid 01d9b6a948961097
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expose object system
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expose object kobject
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expose object event
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expose object process
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expose object thread
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expose object channel
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expose object endpoint
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expose object vma
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# Simple no-op syscall for testing
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function noop
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# Write a message to the kernel log
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function log {
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param message string
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}
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# Get a list of handles owned by this process. If the
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# supplied list is not big enough, will set the size
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# needed in `size` and return j6_err_insufficient
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function handle_list {
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param handles object kobject [list inout optional] # A list of handles to be filled
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}
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# Create a clone of an existing handle, possibly with
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# some capabilities masked out.
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function handle_clone {
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param handle object kobject [handle] # The handle to clone
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param clone object kobject [out] # The new handle
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param mask uint32 # The capability bitmask
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}
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}
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