Kernel: Add bareboness fork() function

userspace/test/test.cpp

@@ -1,31 +1,22 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #define ERROR(msg) { perror(msg); return 1; }
 #define BUF_SIZE 1024
 
 int main()
 {
-	FILE* fp = fopen("/usr/include/stdio.h", "r");
-	if (fp == NULL)
-		ERROR("fopen");
+	printf("forking\n");
 
-	char* buffer = (char*)malloc(BUF_SIZE);
-	if (buffer == NULL)
-		ERROR("malloc");
-
-	for (;;)
+	pid_t pid = fork();
+	if (pid == 0)
 	{
-		size_t n_read = fread(buffer, 1, BUF_SIZE - 1, fp);
-		if (n_read == 0)
-			break;
-		buffer[n_read] = '\0';
-		printf("%s", buffer);
+		printf("child\n");
+		return 0;
 	}
-
-	free(buffer);
-	fclose(fp);
+	printf("parent\n");
 
 	return 0;
 }