From: David Goulet Date: Fri, 1 Oct 2010 19:19:57 +0000 (+0200) Subject: Add a tracepoint test program X-Git-Tag: v0.8~6 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=cd5de8df6ea38d5810c4abd92edf20a24179f0f5;p=ust.git Add a tracepoint test program This test is aimed at testing different tracepoint case and be used to ensure no bugs are added. Complete description of the test in tracepoint_test.c Signed-off-by: David Goulet Acked-by: Nils Carlson --- diff --git a/configure.ac b/configure.ac index 10a02e0..42982c5 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/tracepoint/Makefile tests/register_test/Makefile libustinstr-malloc/Makefile libustfork/Makefile diff --git a/tests/Makefile.am b/tests/Makefile.am index 1d31c3f..69801c0 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 register_test +SUBDIRS = hello hello2 basic basic_long fork simple_include snprintf test-nevents test-libustinstr-malloc dlopen same_line_marker trace_event register_test tracepoint dist_noinst_SCRIPTS = test_loop runtests trace_matches diff --git a/tests/runtests b/tests/runtests index 602fc1e..ff00253 100755 --- a/tests/runtests +++ b/tests/runtests @@ -43,6 +43,8 @@ simple_harness_run dlopen/dlopen.sh simple_harness_run same_line_marker/same_line_marker.sh +simple_harness_run tracepoint/run + echo "************************************" if [[ $tests_failed -eq 0 ]]; then echo "$0: All passed" diff --git a/tests/tracepoint/Makefile.am b/tests/tracepoint/Makefile.am new file mode 100644 index 0000000..37c8f20 --- /dev/null +++ b/tests/tracepoint/Makefile.am @@ -0,0 +1,9 @@ +AM_CPPFLAGS = -I$(top_srcdir)/include + +noinst_PROGRAMS = tracepoint_test +tracepoint_test_SOURCES = tracepoint_test.c tracepoint_test.h +tracepoint_test_LDADD = $(top_builddir)/libust/libust.la $(top_builddir)/libust-initializer.o + +CFLAGS_tracepoint_test.o = -I$(src) +noinst_SCRIPTS = run +EXTRA_DIST = run diff --git a/tests/tracepoint/run b/tests/tracepoint/run new file mode 100755 index 0000000..0da9864 --- /dev/null +++ b/tests/tracepoint/run @@ -0,0 +1,17 @@ +#!/bin/bash + +TESTDIR=$(dirname $0)/.. + +source $TESTDIR/test_functions.sh +source $TESTDIR/tap.sh + +starttest "Testing Tracepoints" +plan_tests 6 + +okx usttrace $TESTDIR/tracepoint/tracepoint_test +trace_loc=$(usttrace -W) +trace_matches -N "probe1" -n "5" "probe = 13" $trace_loc +trace_matches -N "probe2" -n "5" "probe = 42" $trace_loc +trace_matches -N "probe3" -n "1" "probe = \"probe3\"" $trace_loc +trace_matches -N "probe4" -n "100" "probe4 = 42" $trace_loc +check_trace_logs "$trace_loc" diff --git a/tests/tracepoint/tracepoint_test.c b/tests/tracepoint/tracepoint_test.c new file mode 100644 index 0000000..cd3939c --- /dev/null +++ b/tests/tracepoint/tracepoint_test.c @@ -0,0 +1,107 @@ +/* Copyright (C) 2010 David Goulet + * + * 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 test is aimed at testing tracepoint *with* trace_mark : + * + * 1) tracepoint named : "ust_event" + * -) Probe 1 registered and recording the value 13 (x5) + * -) Probe 2 registered and recording the value 42 (x5) + * -) Probe 3 registered and recording the payload of the struct message + * but using a *different* tracepoint (event_msg) + * + * 2) tracepoint named : "ust_event2" + * -) Probe 4 registered and recording the value 42 (x100) + */ + +#include +#include +#include "tracepoint_test.h" + +DEFINE_TRACE(ust_event); +DEFINE_TRACE(ust_event2); + +static struct message msg_probe3 = { + .payload = "probe3", +}; + +/* + * Probe 4 --> ust_event2 + * Will record 100 times the value 42 + */ +void tp_probe4(void *data, unsigned int p4) +{ + int i; + for (i = 0; i < 100; i++) { + trace_mark_tp(ust, event2, ust_event2, tp_probe4, "probe4 %u", p4); + } +} + +/* + * Probe 3 --> ust_event *and* event_msg (from inside) + * Will record the payload of msg_prob3 struct + * from the data pointer of the probe + */ +void tp_probe3(void *data, unsigned int p3) +{ + struct message *msg; + msg = (struct message*) data; + trace_mark_tp(ust, event_msg, ust_event_msg, + tp_probe3, "probe %s", msg->payload); +} + +/* + * Probe 2 --> ust_event + * Will record 5 times the number 13 + */ +void tp_probe2(void *data, unsigned int p2) +{ + int i; + for (i = 0; i < 5; i++) { + trace_mark_tp(ust, event, ust_event, tp_probe2, "probe %u", 13); + } +} + +/* + * Probe 1 --> ust_event + * Will record 5 times the unsigned int v = 42 + */ +void tp_probe(void *data, unsigned int p1) +{ + int i; + for (i = 0; i < 5; i++) { + trace_mark_tp(ust, event, ust_event, tp_probe, "probe %u", p1); + } +} + +static void __attribute__((constructor)) init() +{ + register_trace_ust_event(tp_probe, NULL); + register_trace_ust_event(tp_probe2, NULL); + register_trace_ust_event(tp_probe3, &msg_probe3); + register_trace_ust_event2(tp_probe4, NULL); +} + +int main(int argc, char **argv) { + unsigned int v = 42; + /* Tracepoint 1 : ust_event */ + trace_ust_event(v); + /* Tracepoint 2 : ust_event2 */ + trace_ust_event2(v); + + return 0; +} diff --git a/tests/tracepoint/tracepoint_test.h b/tests/tracepoint/tracepoint_test.h new file mode 100644 index 0000000..6b4dcdb --- /dev/null +++ b/tests/tracepoint/tracepoint_test.h @@ -0,0 +1,8 @@ +#include + +DECLARE_TRACE(ust_event, TP_PROTO(unsigned int v), TP_ARGS(v)); +DECLARE_TRACE(ust_event2, TP_PROTO(unsigned int v), TP_ARGS(v)); + +struct message { + char *payload; +};