[lttng-dev] [PATCH lttng-tools 6/7] Tests: Add "libc-wrapper" ust regression test
Jérémie Galarneau
jeremie.galarneau at efficios.com
Mon Mar 25 20:28:35 EDT 2013
Based on the "test-libustinstr-malloc" test formerly part of lttng-ust.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau at efficios.com>
---
.gitignore | 1 +
configure.ac | 1 +
tests/fast_regression | 1 +
tests/long_regression | 1 +
tests/regression/ust/Makefile.am | 2 +-
tests/regression/ust/libc-wrapper/Makefile.am | 8 ++
tests/regression/ust/libc-wrapper/README | 22 ++++++
tests/regression/ust/libc-wrapper/prog.c | 48 +++++++++++
.../regression/ust/libc-wrapper/test_libc-wrapper | 35 ++++++++
.../ust/libc-wrapper/test_libc-wrapper.py | 92 ++++++++++++++++++++++
10 files changed, 210 insertions(+), 1 deletion(-)
create mode 100644 tests/regression/ust/libc-wrapper/Makefile.am
create mode 100644 tests/regression/ust/libc-wrapper/README
create mode 100644 tests/regression/ust/libc-wrapper/prog.c
create mode 100755 tests/regression/ust/libc-wrapper/test_libc-wrapper
create mode 100644 tests/regression/ust/libc-wrapper/test_libc-wrapper.py
diff --git a/.gitignore b/.gitignore
index 533973a..8e2e63d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,5 +71,6 @@ tests/regression/ust/daemon/daemon
tests/regression/ust/exit-fast/exit-fast
tests/regression/ust/fork/fork
tests/regression/ust/fork/fork2
+tests/regression/ust/libc-wrapper/prog
benchmark/
diff --git a/configure.ac b/configure.ac
index d7ca253..e2c2a4f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -336,6 +336,7 @@ AC_CONFIG_FILES([
tests/regression/ust/daemon/Makefile
tests/regression/ust/exit-fast/Makefile
tests/regression/ust/fork/Makefile
+ tests/regression/ust/libc-wrapper/Makefile
tests/unit/Makefile
tests/utils/Makefile
tests/utils/tap/Makefile
diff --git a/tests/fast_regression b/tests/fast_regression
index cc561fb..175bb03 100644
--- a/tests/fast_regression
+++ b/tests/fast_regression
@@ -16,3 +16,4 @@ regression/ust/linking/test_linking
regression/ust/daemon/test_daemon
regression/ust/exit-fast/test_exit-fast
regression/ust/fork/test_fork
+regression/ust/libc-wrapper/test_libc-wrapper
diff --git a/tests/long_regression b/tests/long_regression
index 810b661..8b1cbfc 100644
--- a/tests/long_regression
+++ b/tests/long_regression
@@ -18,3 +18,4 @@ regression/ust/linking/test_linking
regression/ust/daemon/test_daemon
regression/ust/exit-fast/test_exit-fast
regression/ust/fork/test_fork
+regression/ust/libc-wrapper/test_libc-wrapper
diff --git a/tests/regression/ust/Makefile.am b/tests/regression/ust/Makefile.am
index 23613bd..e622544 100644
--- a/tests/regression/ust/Makefile.am
+++ b/tests/regression/ust/Makefile.am
@@ -1,6 +1,6 @@
if HAVE_LIBLTTNG_UST_CTL
SUBDIRS = nprocesses high-throughput low-throughput before-after multi-session \
- overlap buffers-uid linking daemon exit-fast fork
+ overlap buffers-uid linking daemon exit-fast fork libc-wrapper
EXTRA_DIST = test_event_basic test_event_wildcard
diff --git a/tests/regression/ust/libc-wrapper/Makefile.am b/tests/regression/ust/libc-wrapper/Makefile.am
new file mode 100644
index 0000000..af12d31
--- /dev/null
+++ b/tests/regression/ust/libc-wrapper/Makefile.am
@@ -0,0 +1,8 @@
+AM_CPPFLAGS = -I$(srcdir)
+
+noinst_PROGRAMS = prog
+prog_SOURCES = prog.c
+prog_LDADD = -llttng-ust -llttng-ust-libc-wrapper
+
+noinst_SCRIPTS = test_libc-wrapper test_libc-wrapper.py
+EXTRA_DIST = test_libc-wrapper test_libc-wrapper.py
diff --git a/tests/regression/ust/libc-wrapper/README b/tests/regression/ust/libc-wrapper/README
new file mode 100644
index 0000000..adcd425
--- /dev/null
+++ b/tests/regression/ust/libc-wrapper/README
@@ -0,0 +1,22 @@
+libc-wrapper malloc/free tracing test
+-------------------------------------
+
+This test checks if tracing works correctly when applications are linked against
+the UST libc wrapper which provides tracepoints in the malloc and free libc
+functions.
+
+DESCRIPTION
+-----------
+
+The test application performs a series of calls to malloc()/free() and the
+resulting trace is checked for the presence of ust-libc:malloc and ust-libc:free
+events.
+
+DEPENDENCIES
+------------
+
+To run this test, you will need:
+
+ - lttng-tools (with python bindings)
+ - babeltrace
+ - python 3.0 or better
diff --git a/tests/regression/ust/libc-wrapper/prog.c b/tests/regression/ust/libc-wrapper/prog.c
new file mode 100644
index 0000000..3068257
--- /dev/null
+++ b/tests/regression/ust/libc-wrapper/prog.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 2009 Pierre-Marc Fournier
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* This program is used to test malloc instrumentation with libustinstr-malloc.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#define N_ITER 1000
+
+int main()
+{
+ int i;
+ const char teststr[] = "Hello World! 1234567890abc";
+ void *ptrs[N_ITER];
+
+ for (i = 0; i < N_ITER; i++) {
+ ptrs[i] = malloc(i+1000);
+
+ memcpy(ptrs[i], teststr, sizeof(teststr));
+
+ if (i % 2 == 0) {
+ free(ptrs[i]);
+ }
+ }
+
+ for (i = 0; i < N_ITER; i++) {
+ if (i % 2 == 1)
+ free(ptrs[i]);
+ }
+
+ return 0;
+}
diff --git a/tests/regression/ust/libc-wrapper/test_libc-wrapper b/tests/regression/ust/libc-wrapper/test_libc-wrapper
new file mode 100755
index 0000000..8c6b128
--- /dev/null
+++ b/tests/regression/ust/libc-wrapper/test_libc-wrapper
@@ -0,0 +1,35 @@
+#!/bin/sh
+#
+# Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau at efficios.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License, version 2 only, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Check for a running sessiond
+`pidof lt-lttng-sessiond`
+STOP_SESSIOND=$?
+
+CURDIR=$(dirname $0)
+TESTDIR=${CURDIR}/../../..
+
+# Try to launch a sessiond before invoking the python test script
+if [ $STOP_SESSIOND -ne 0 ]; then
+ DIR=$(readlink -f ${TESTDIR})
+ ${DIR}/../src/bin/lttng-sessiond/lttng-sessiond --daemonize --quiet --consumerd32-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd" --consumerd64-path="$DIR/../src/bin/lttng-consumerd/lttng-consumerd"
+fi
+
+python3 ${CURDIR}/test_libc-wrapper.py
+
+if [ $STOP_SESSIOND -ne 0 ]; then
+ kill `pidof lt-lttng-sessiond`
+fi
diff --git a/tests/regression/ust/libc-wrapper/test_libc-wrapper.py b/tests/regression/ust/libc-wrapper/test_libc-wrapper.py
new file mode 100644
index 0000000..d45b71a
--- /dev/null
+++ b/tests/regression/ust/libc-wrapper/test_libc-wrapper.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau at efficios.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License, version 2 only, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import subprocess
+import re
+import shutil
+import sys
+
+test_path = os.path.dirname(os.path.abspath(__file__)) + "/"
+test_utils_path = test_path
+for i in range(4):
+ test_utils_path = os.path.dirname(test_utils_path)
+test_utils_path = test_utils_path + "/utils"
+sys.path.append(test_utils_path)
+from test_utils import *
+
+
+NR_TESTS = 4
+current_test = 1
+print("1..{0}".format(NR_TESTS))
+
+# Check if a sessiond is running... bail out if none found.
+if session_daemon_alive() == 0:
+ bail("No sessiond running. Please make sure you are running this test with the \"run\" shell script and verify that the lttng tools are properly installed.")
+
+session_info = create_session()
+enable_ust_tracepoint_event(session_info, "ust_libc*")
+start_session(session_info)
+
+malloc_process = subprocess.Popen(test_path + "prog", stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+if sys.version_info >= (3, 3):
+ try:
+ malloc_process.wait(5)
+ except TimeoutExpired:
+ malloc_process.kill()
+ bail("Failed to run libustinstr-malloc test application.", session_info)
+else:
+ malloc_process.wait()
+
+print_test_result(malloc_process.returncode == 0, current_test, "Test application exited normally")
+current_test += 1
+
+stop_session(session_info)
+
+# Check for malloc events in the resulting trace
+try:
+ babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+except FileNotFoundError:
+ bail("Could not open babeltrace. Please make sure it is installed.", session_info)
+
+malloc_event_found = False
+free_event_found = False
+
+for event_line in babeltrace_process.stdout:
+ # Let babeltrace finish to get the return code
+ if malloc_event_found and free_event_found:
+ continue
+
+ event_line = event_line.decode('utf-8').replace("\n", "")
+ if re.search(r".*ust_libc:malloc.*", event_line) is not None:
+ malloc_event_found = True
+
+ if re.search(r".*ust_libc:free.*", event_line) is not None:
+ free_event_found = True
+
+babeltrace_process.wait()
+
+print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
+current_test += 1
+
+print_test_result(free_event_found, current_test, "ust_libc:malloc event found in resulting trace")
+current_test += 1
+
+print_test_result(free_event_found, current_test, "ust_libc:free event found in resulting trace")
+current_test += 1
+
+shutil.rmtree(session_info.tmp_directory)
--
1.8.2
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