include/apos/uapi.h


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#ifndef APOS_UAPI_H
#define APOS_UAPI_H

#include <apos/syscalls.h>
#include <apos/vmem.h>

/* syscall function type, let's start with four arguments and see where that
 * goes */
typedef vm_t (*sys_t)(vm_t, vm_t, vm_t, vm_t);

#define SYSCALL_DECLARE(name) vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d);

#define SYSCALL_DEFINE0(name)                                                  \
	static vm_t __##name();                                                \
	vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d)                        \
	{                                                                      \
		UNUSED(a);                                                     \
		UNUSED(b);                                                     \
		UNUSED(c);                                                     \
		UNUSED(d);                                                     \
		return __##name();                                             \
	}                                                                      \
	static vm_t __##name

#define SYSCALL_DEFINE1(name)                                                  \
	static vm_t __##name(vm_t);                                            \
	vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d)                        \
	{                                                                      \
		UNUSED(b);                                                     \
		UNUSED(c);                                                     \
		UNUSED(d);                                                     \
		return __##name(a);                                            \
	}                                                                      \
	static vm_t __##name

#define SYSCALL_DEFINE2(name)                                                  \
	static vm_t __##name(vm_t, vm_t);                                      \
	vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d)                        \
	{                                                                      \
		UNUSED(c);                                                     \
		UNUSED(d);                                                     \
		return __##name(a, b);                                         \
	}                                                                      \
	static vm_t __##name

#define SYSCALL_DEFINE3(name)                                                  \
	static vm_t __##name(vm_t, vm_t, vm_t);                                \
	vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d)                        \
	{                                                                      \
		UNUSED(d);                                                     \
		return __##name(a, b, c);                                      \
	}                                                                      \
	static vm_t __##name

#define SYSCALL_DEFINE4(name)                                                  \
	static vm_t __##name(vm_t, vm_t, vm_t, vm_t);                          \
	vm_t sys_##name(vm_t a, vm_t b, vm_t c, vm_t d)                        \
	{                                                                      \
		return __##name(a, b, c, d);                                   \
	}                                                                      \
	static vm_t __##name

/* noop */
SYSCALL_DECLARE(noop);

/* memory */
SYSCALL_DECLARE(req_mem);
SYSCALL_DECLARE(req_pmem);
SYSCALL_DECLARE(req_fixmem);
SYSCALL_DECLARE(req_sharedmem);
SYSCALL_DECLARE(free_mem);

/* timers */
SYSCALL_DECLARE(timebase);
SYSCALL_DECLARE(req_rel_timer);
SYSCALL_DECLARE(req_abs_timer);
SYSCALL_DECLARE(free_timer);

/* ipc */
SYSCALL_DECLARE(ipc_server);
SYSCALL_DECLARE(ipc_req);
SYSCALL_DECLARE(ipc_resp);

/* proc */
SYSCALL_DECLARE(fork);
SYSCALL_DECLARE(exec);
SYSCALL_DECLARE(signal);
SYSCALL_DECLARE(switch);

/* conf */
SYSCALL_DECLARE(conf);
SYSCALL_DECLARE(poweroff);

vm_t syscall_dispatch(vm_t syscall, vm_t a, vm_t b, vm_t c, vm_t d);

#endif /* APOS_UAPI_H */