tSyscallRegs Struct Reference

Register state passed to the syscall handler. More...

#include <archdoc.h>

Data Fields
Uint	Arg4
	Fourth argument.
Uint	Arg3
	Third argument.
Uint	Arg2
	Second argument.
union {
Uint   Arg1
	First arugment.
Uint   RetHi
	High part of the return.
};
union {
Uint   Num
	Call Number.
Uint   Return
	Low return value.
};
Uint	StackPointer
	User stack pointer.

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Detailed Description

Register state passed to the syscall handler.

The tSyscallRegs structure allows the system call handler to read the user state to get the arguments for the call. It also allows the handler to alter specific parts of the user state to reflect the result of the call.

Note:

The fields shown here are need only be present in the actual structure, in any order. The implementation may also add more fields for padding purposes.

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The documentation for this struct was generated from the following file:

• arch/archdoc.h