#ifndef _ELIBC_KCALL_H
#define _ELIBC_KCALL_H

/* Elyz kernel-call abstraction.
 *
 * Elyz has NO syscall instruction.  Communication with the kernel and PM
 * actors happens through capability invocation — a mechanism defined by the
 * kernel ABI (not finalised yet).  This header describes the abstract
 * interface; the arch-specific implementation (arch/<arch>/kcall.h) fills in
 * the concrete mechanism.
 *
 * Current state: STUB — returns -ENOSYS until the Elyz kernel ABI is
 * stabilised.
 */

#define ELYZ_OP_ALLOCATE   1
#define ELYZ_OP_FREE       2
#define ELYZ_OP_CARVE      3
#define ELYZ_OP_EXIT       4

struct elyz_kcall {
    unsigned long opcode;
    unsigned long arg1;
    unsigned long arg2;
    unsigned short channel_id;
};

long __kcall(struct elyz_kcall *msg);

#endif