Test "rus_vm_fault: If page fault occurs in a thread that has not processed system call offloading, incorrectly return to normal." on arm64

Change-Id: I3dc98d8994228ad27cfdf9ca96a0a76e544bc947
Refs: #923

test/mng_mod/issues/923/arm64/CT02m.c

@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <errno.h>
+
+int
+readline(int fd, char *buf)
+{
+	int r;
+	int rc = 0;
+
+	while ((r = read(fd, buf, 1)) == 1) {
+		rc++;
+		if (*buf == '\n')
+			break;
+		buf++;
+	}
+	if (r == -1) {
+		perror("read");
+		exit(1);
+	}
+	if (!rc) {
+		fprintf(stderr, "CT02m read: BAD EOF\n");
+		exit(1);
+	}
+	*buf = '\0';
+	return rc;
+}
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+	char buf[80];
+	char *m;
+	int f;
+
+	if (syscall(732) == -1) {
+		fprintf(stderr, "run under Mckernel!\n");
+		exit(1);
+	}
+
+	if (argv[1] == NULL) {
+		fprintf(stderr, "No parameter\n");
+		exit(1);
+	}
+
+	fd = atoi(argv[1]);
+
+	m = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	if (m == (void *)-1) {
+		perror("mmap");
+		exit(1);
+	}
+
+// CT02001
+	sprintf(buf, "%p 1\n", m);
+	strcpy(m, "1234567");
+	write(fd, buf, strlen(buf));
+
+	readline(fd, buf);
+// CT02003
+	f = open("/dev/zero", O_RDONLY);
+	read(f, m, 4096);
+	close(f);
+	sprintf(buf, "%p 2\n", m);
+	strcpy(m, "1234567");
+	write(fd, buf, strlen(buf));
+
+	readline(fd, buf);
+
+// CT02005
+	munmap(m, 4096);
+	sprintf(buf, "%p 3\n", m);
+	write(fd, buf, strlen(buf));
+
+	readline(fd, buf);
+
+	m = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	if (m == (void *)-1) {
+		perror("mmap");
+		exit(1);
+	}
+
+// CT02006
+	sprintf(buf, "%p\n", m);
+	strcpy(m, "1234567");
+	write(fd, buf, strlen(buf));
+
+	readline(fd, buf);
+	if (strcmp(m, "1234567")) {
+		fprintf(stderr, "CT02007 NG broken data: %s\n", m);
+	}
+	else {
+		fprintf(stderr, "CT02007 OK no data updated\n");
+	}
+	fflush(stderr);
+// CT02008
+	f = open("/dev/zero", O_RDONLY);
+	read(f, m, 4096);
+	close(f);
+	sprintf(buf, "%p\n", m);
+	strcpy(m, "1234567");
+	write(fd, buf, strlen(buf));
+
+	readline(fd, buf);
+	if (strcmp(m, "ABCDEFG")) {
+		fprintf(stderr, "CT02009 NG broken data: %s\n", m);
+	}
+	else {
+		fprintf(stderr, "CT02009 OK data updated\n");
+	}
+	fflush(stderr);
+// CT02010
+munmap(m, 4096); sprintf(buf, "%p 6\n", m); write(fd, buf, strlen(buf)); 
+	close(fd);
+
+	exit(0);
+}