matos/core/syscall.c

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2021-11-02 21:57:57 +01:00
#include "klibc.h"
#include "stdarg.h"
#include "syscall.h"
#include "thread.h"
int syscallExecute(int syscallId, const struct cpu_state *user_ctx){
int ret;
switch (syscallId) {
case SYSCALL_ID_EXIT:
uint status;
ret = syscallGet1arg(user_ctx, &status);
if(ret != 0)
break;
threadExit();
assert(0);
break;
case SYSCALL_ID_WRITE:
ret = printf("YOLO FROM USERSPACE\n");
break;
default:
printf("Unknon syscall id %d\n", syscallId);
ret = -ENOENT;
}
return ret;
}