test: Add test programs for #1166

refs: #1166
Change-Id: I9b6dd8628e8a3dcb2281e31f4b8d116e9c7852d8

test/issues/1166/CT1166.c

@@ -0,0 +1,97 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <fcntl.h>
+#include <errno.h>
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+	int *p2;
+	pid_t pid;
+	int st;
+	int ok = 0;
+	int ng = 0;
+
+	printf("CT1166 START\n");
+
+	fd = open("/dev/fb0", O_RDWR, 0);
+	if (fd == -1) {
+		printf("CT1166T01 could not open /dev/fb0: %s\n",
+		       strerror(errno));
+		exit(1);
+	}
+	printf("CT1166T01: OK open(/dev/fb0)\n");
+
+	p2 = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (p2 == (void *)-1) {
+		printf("CT1166T02: NG could not mmap: %s\n", strerror(errno));
+		ng++;
+		exit(1);
+	}
+	printf("CT1166T02: OK mmap(MAP_PRIVATE)\n");
+	ok++;
+	close(fd);
+
+	p2[0] = 50;
+	printf("CT1166T03: OK store private fb0\n");
+	ok++;
+	if (p2[0] == 50) {
+		printf("CT1166T04: OK load private fb0\n");
+		ok++;
+	}
+	else {
+		printf("CT1166T04: NG load private fb0\n");
+		ng++;
+	}
+
+	fflush(stdout);
+	pid = fork();
+	if (pid == -1) {
+		printf("CT1166T05: NG could not fork: %s\n", strerror(errno));
+		ng++;
+		exit(1);
+	}
+
+	if (pid == 0) {
+		printf("CT1166T05: OK fork\n");
+		ok++;
+
+		p2[0] = 10;
+		printf("CT1166T06: OK store private fb0 by child\n");
+		ok++;
+		if (p2[0] == 10) {
+			printf("CT1166T07: OK load private fb0 by child\n");
+			ok++;
+		}
+		else {
+			printf("CT1166T07: NG load private fb0 by child\n");
+			ng++;
+		}
+		exit(0);
+	}
+
+	while (waitpid(pid, &st, 0) == -1 && errno == EINTR)
+		;
+
+	if (p2[0] == 50) {
+		printf("CT1166T08: OK private fb0 do not updated\n");
+		ok++;
+	}
+	else {
+		printf("CT1166T08: NG private fb0 updated %d\n", p2[0]);
+		ng++;
+	}
+	if (ng == 0) {
+		printf("CT1166 all tests are OK\n");
+	}
+	else {
+		printf("CT1166 OK=%d NG=%d\n", ok, ng);
+	}
+	exit(0);
+}