You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
761 B
C
34 lines
761 B
C
#ifndef H_ECALL
|
|
#define H_ECALL
|
|
|
|
#include "sched.h"
|
|
|
|
/* ecall codes are defined here
|
|
*
|
|
*
|
|
*/
|
|
enum ecall_codes {
|
|
ECALL_SPAWN = 1,
|
|
ECALL_SLEEP = 2,
|
|
ECALL_JOIN = 3,
|
|
ECALL_KILL = 4,
|
|
ECALL_EXIT = 5,
|
|
};
|
|
|
|
#define ECALL_TABLE_LEN 8
|
|
|
|
// initializer for ecall lookup table
|
|
void init_ecall_table();
|
|
|
|
// syscall handlers, are setup in the mtvec csr
|
|
int ecall_handle_spawn(int*, ProcessControlBlock*);
|
|
int ecall_handle_sleep(int*, ProcessControlBlock*);
|
|
int ecall_handle_join(int*, ProcessControlBlock*);
|
|
int ecall_handle_kill(int*, ProcessControlBlock*);
|
|
int ecall_handle_exit(int*, ProcessControlBlock*);
|
|
|
|
void handle_exception(int ecode, int mtval);
|
|
|
|
void __attribute__((__noreturn__)) trap_handle(int interrupt_bit, int code, int mtval);
|
|
|
|
#endif |