zdtm: Add selfexe00 test-case

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm.sh

@@ -30,6 +30,7 @@ static/pstree
 static/caps00
 static/cmdlinenv00
 static/socket_listen
+static/selfexe00
 "
 
 UTS_TEST_LIST="

test/zdtm/live/static/Makefile

@@ -32,6 +32,7 @@ TST_NOFILE	=				\
 		pstree				\
 		sockets00			\
 		ipc_namespace			\
+		selfexe00			\
 #		jobctl00			\
 
 TST_FILE	=				\

test/zdtm/live/static/selfexe00.c

+/*
+ * A simple testee program with threads
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+#include <limits.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include "zdtmtst.h"
+
+#define gettid()	pthread_self()
+
+const char *test_doc	= "Check if /proc/self/exe points to same location after restore\n";
+const char *test_author	= "Cyrill Gorcunov <gorcunov@openvz.org";
+
+int main(int argc, char *argv[])
+{
+	char path_before[PATH_MAX];
+	char path_after[PATH_MAX];
+
+	test_init(argc, argv);
+
+	test_msg("%s pid %d\n", argv[0], getpid());
+	if (readlink("/proc/self/exe", path_before, sizeof(path_before)) < 0) {
+		err("Can't read selflink\n");
+		fail();
+		exit(1);
+	}
+
+
+	test_daemon();
+	test_waitsig();
+
+	if (readlink("/proc/self/exe", path_after, sizeof(path_after)) < 0) {
+		err("Can't read selflink\n");
+		fail();
+		exit(1);
+	}
+
+	if (!strcmp(path_before, path_after))
+		pass();
+	else
+		fail();
+
+	return 0;
+}