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#ifndef APOS_UAPI_H
#define APOS_UAPI_H
/**
* @file uapi.h
* Userspace api, syscall declarations.
*/
#include <apos/syscalls.h>
#include <apos/vmem.h>
/* syscall function type, let's start with four arguments and see where that
* goes */
typedef struct sys_ret (*sys_t)(long, long, long, long);
/* TODO: should this be arch specific? should be the size of an integer register */
typedef long sys_arg_t;
struct sys_ret {
sys_arg_t err;
sys_arg_t val;
};
#define SYSCALL_DECLARE(name) \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d);
#define SYSCALL_DEFINE0(name) \
static inline struct sys_ret __##name(); \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d) \
{ \
UNUSED(a); \
UNUSED(b); \
UNUSED(c); \
UNUSED(d); \
return __##name(); \
} \
static struct sys_ret __##name
#define SYSCALL_DEFINE1(name) \
static inline struct sys_ret __##name(sys_arg_t); \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d) \
{ \
UNUSED(b); \
UNUSED(c); \
UNUSED(d); \
return __##name(a); \
} \
static inline struct sys_ret __##name
#define SYSCALL_DEFINE2(name) \
static inline struct sys_ret __##name(sys_arg_t, sys_arg_t); \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d) \
{ \
UNUSED(c); \
UNUSED(d); \
return __##name(a, b); \
} \
static inline struct sys_ret __##name
#define SYSCALL_DEFINE3(name) \
static inline struct sys_ret __##name(sys_arg_t, sys_arg_t, \
sys_arg_t); \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d) \
{ \
UNUSED(d); \
return __##name(a, b, c); \
} \
static inline struct sys_ret __##name
#define SYSCALL_DEFINE4(name) \
static inline struct sys_ret __##name(sys_arg_t, sys_arg_t, sys_arg_t, \
sys_arg_t); \
struct sys_ret sys_##name(sys_arg_t a, sys_arg_t b, sys_arg_t c, \
sys_arg_t d) \
{ \
return __##name(a, b, c, d); \
} \
static inline struct sys_ret __##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_fwd);
SYSCALL_DECLARE(ipc_resp);
/* proc */
SYSCALL_DECLARE(create);
SYSCALL_DECLARE(fork);
SYSCALL_DECLARE(exec);
SYSCALL_DECLARE(signal);
SYSCALL_DECLARE(swap);
/* conf */
SYSCALL_DECLARE(conf);
SYSCALL_DECLARE(poweroff);
struct sys_ret syscall_dispatch(sys_arg_t syscall, sys_arg_t a, sys_arg_t b,
sys_arg_t c, sys_arg_t d);
#endif /* APOS_UAPI_H */
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