#pragma once

#include <stddef.h>
#include <process.h>
#include <signal.h>

void syscall_handler(trapframe_t *regs);

int32_t sys_getpid(void);
size_t sys_uart_read(char buf[], size_t size);
size_t sys_uart_write(const char buf[], size_t size);
int32_t sys_exec(const char *name, char *const argv[]);
int32_t sys_fork(void);
void sys_exit(int32_t status);
int32_t sys_mbox_call(uint8_t ch, uint32_t *mbox);
void sys_kill_by_id(int32_t pid);
void sys_signal(int32_t SIGNAL, signal_handler_t handler);
void sys_kill(int32_t pid, int32_t SIGNAL);
void sys_sigreturn(void);