[ltt-dev] [PATCH 2/2] Update test-case for tracepoints and add a new test-case
Nils Carlson
nils.carlson at ericsson.com
Tue Aug 31 09:53:14 EDT 2010
Update the test-case for probes to handle a new data pointer
in the probe function. Also add a new test-case that stress-tests
probe registration and unregistration.
---
configure.ac | 1 +
tests/Makefile.am | 2 +-
tests/hello/hello.c | 2 +-
tests/hello/tp.c | 18 +++++--
tests/register_test/Makefile.am | 5 ++
tests/register_test/register_test.c | 97 +++++++++++++++++++++++++++++++++++
tests/register_test/tp.h | 22 ++++++++
7 files changed, 141 insertions(+), 6 deletions(-)
create mode 100644 tests/register_test/Makefile.am
create mode 100644 tests/register_test/register_test.c
create mode 100644 tests/register_test/tp.h
diff --git a/configure.ac b/configure.ac
index dee974f..10a02e0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -122,6 +122,7 @@ AC_CONFIG_FILES([
tests/dlopen/Makefile
tests/same_line_marker/Makefile
tests/trace_event/Makefile
+ tests/register_test/Makefile
libustinstr-malloc/Makefile
libustfork/Makefile
libustd/Makefile
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ab13cd7..1d31c3f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,3 +1,3 @@
-SUBDIRS = hello hello2 basic basic_long fork simple_include snprintf test-nevents test-libustinstr-malloc dlopen same_line_marker trace_event
+SUBDIRS = hello hello2 basic basic_long fork simple_include snprintf test-nevents test-libustinstr-malloc dlopen same_line_marker trace_event register_test
dist_noinst_SCRIPTS = test_loop runtests trace_matches
diff --git a/tests/hello/hello.c b/tests/hello/hello.c
index 86c5c71..8147860 100644
--- a/tests/hello/hello.c
+++ b/tests/hello/hello.c
@@ -26,8 +26,8 @@
#include <ust/marker.h>
#include "usterr.h"
-#include "tp.h"
#include "tracer.h"
+#include "tp.h"
void inthandler(int sig)
{
diff --git a/tests/hello/tp.c b/tests/hello/tp.c
index be10615..3a4c6fc 100644
--- a/tests/hello/tp.c
+++ b/tests/hello/tp.c
@@ -19,16 +19,26 @@
#include <ust/marker.h>
#include "usterr.h"
+struct hello_trace_struct {
+ char *message;
+};
+
+struct hello_trace_struct hello_struct = {
+ .message = "ehlo\n",
+};
+
DEFINE_TRACE(hello_tptest);
-void tptest_probe(int anint)
+void tptest_probe(void *data, int anint)
{
+ struct hello_trace_struct *hello;
+ hello=(struct hello_trace_struct *)data;
DBG("in tracepoint probe...");
- trace_mark(ust, tptest, "anint %d", anint);
+ printf("this is the message: %s\n", hello->message);
}
static void __attribute__((constructor)) init()
{
- DBG("connecting tracepoint...");
- register_trace_hello_tptest(tptest_probe);
+ DBG("connecting tracepoint...\n");
+ register_trace_hello_tptest(tptest_probe, &hello_struct);
}
diff --git a/tests/register_test/Makefile.am b/tests/register_test/Makefile.am
new file mode 100644
index 0000000..ff25e08
--- /dev/null
+++ b/tests/register_test/Makefile.am
@@ -0,0 +1,5 @@
+AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/libust
+
+noinst_PROGRAMS = register_test
+register_test_SOURCES = register_test.c tp.h
+register_test_LDADD = $(top_builddir)/libust/libust.la $(top_builddir)/libust-initializer.o
diff --git a/tests/register_test/register_test.c b/tests/register_test/register_test.c
new file mode 100644
index 0000000..8b65ffb
--- /dev/null
+++ b/tests/register_test/register_test.c
@@ -0,0 +1,97 @@
+/* Copyright (C) 2010 Nils Carlson
+ *
+ * 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
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/timerfd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <pthread.h>
+
+#include <ust/marker.h>
+#include "usterr.h"
+#include "tracer.h"
+#include "tp.h"
+
+DEFINE_TRACE(hello_tptest);
+
+
+struct hello_trace_struct {
+ char *message;
+};
+
+struct hello_trace_struct hello_struct = {
+ .message = "ehlo\n",
+};
+
+void tptest_probe(void *data, int anint)
+{
+ struct hello_trace_struct *hello;
+ char message[30];
+ hello=(struct hello_trace_struct *)data;
+ //printf("this is the message: %s\n", hello->message);
+ snprintf(message, 30, "this is the %s\n", hello->message);
+}
+
+
+#define HELLO_LENGTH 100
+
+static void * register_thread_main(void *data)
+{
+ int ret, i, j = 0;
+
+ struct hello_trace_struct hello[HELLO_LENGTH];
+
+ for (i=0; i<HELLO_LENGTH; i++) {
+ hello[i].message = malloc(6*sizeof(char));
+ hello[i].message[0] = 'a'+i%25;
+ memcpy(&hello[i].message[1], "ello", 5);
+ }
+
+ for (i=0; i<1000; i++) {
+ while (!register_trace_hello_tptest(tptest_probe,
+ &hello[j%HELLO_LENGTH])) {
+ usleep(10);
+ j++;
+ }
+ printf("Registered all\n");
+ while (!unregister_trace_hello_tptest(tptest_probe,
+ &hello[j%HELLO_LENGTH])) {
+ usleep(10);
+ j++;
+ }
+ printf("Unregistered all\n");
+ }
+}
+
+
+int main()
+{
+ pthread_t register_thread;
+ int i;
+
+ pthread_create(®ister_thread, NULL, register_thread_main, NULL);
+ for(i=0; i<1000000; i++) {
+ trace_hello_tptest(i);
+ }
+
+ return 0;
+}
diff --git a/tests/register_test/tp.h b/tests/register_test/tp.h
new file mode 100644
index 0000000..f34f305
--- /dev/null
+++ b/tests/register_test/tp.h
@@ -0,0 +1,22 @@
+/* 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
+ */
+
+#include <ust/tracepoint.h>
+
+DECLARE_TRACE(hello_tptest,
+ TP_PROTO(int anint),
+ TP_ARGS(anint));
--
1.7.1
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