e0246df26b
Since we have a DSL for specifying syscalls, we can create a verificaton method for each syscall that can cover most argument (and eventually capability) verification instead of doing it piecemeal in each syscall implementation, which can be more error-prone. Now a new _syscall_verify_* function exists for every syscall, which calls the real implementation. The syscall table for the syscall handler now maps to these verify functions. Other changes: - Updated the definition grammar to allow options to have a "key:value" style, to eventually support capabilities. - Added an "optional" option for parameters that says a syscall will accept a null value. - Some bonnibel fixes, as definition file changes weren't always properly causing updates in the build dep graph. - The syscall implementation function signatures are no longer exposed in syscall.h. Also, the unused syscall enum has been removed.
36 lines
1.2 KiB
Modula-2
36 lines
1.2 KiB
Modula-2
import "objects/endpoint.def"
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import "objects/vma.def"
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# The system object represents a handle to kernel functionality
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# needed by drivers and other priviledged services
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object system : kobject {
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uid fa72506a2cf71a30
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# Get a log line from the kernel log
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method get_log {
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param buffer buffer [out optional] # Buffer for the log message data structure
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}
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# Ask the kernel to send this process messages whenever
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# the given IRQ fires
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method bind_irq {
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param dest object endpoint # Endpoint that will receive messages
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param irq uint # IRQ number to bind
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}
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# Create a VMA and map an area of physical memory into it,
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# also mapping that VMA into the current process
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method map_phys {
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param area object vma [out] # Receives a handle to the VMA created
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param phys address # The physical address of the area
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param size size # Size of the area, in pages
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param flags uint32 # Flags to apply to the created VMA
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}
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# Request the kernel change the IOPL for this process. The only values
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# that make sense are 0 and 3.
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method request_iopl {
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param iopl uint # The IOPL to set for this process
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}
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}
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