From 6ffff05bf4c25d1202814e54a1bb3ca10aa7da85 Mon Sep 17 00:00:00 2001 From: Michael Jeanson Date: Thu, 16 Jul 2020 14:24:44 -0400 Subject: [PATCH] Cleanup: Remove obsolete and unused tests These tests have not been built in years and are not compatible with the current API. Signed-off-by: Michael Jeanson Signed-off-by: Mathieu Desnoyers Change-Id: I6e18ba701d5deec72102e9b652ec9dfc9f08a9c2 --- .gitignore | 5 - tests/trace_event/Makefile.am | 9 - tests/trace_event/run | 5 - tests/trace_event/trace_event_test.c | 35 - tests/trace_event/trace_event_test.h | 46 - tests/tracepoint/Makefile.am | 14 - tests/tracepoint/benchmark/Makefile.am | 7 - tests/tracepoint/benchmark/runstap.sh | 53 - tests/tracepoint/benchmark/runtest.sh | 55 -- tests/tracepoint/benchmark/testutrace.stp | 4 - .../benchmark/tracepoint_benchmark.c | 104 -- .../benchmark/tracepoint_benchmark.h | 40 - tests/tracepoint/run | 23 - tests/tracepoint/tracepoint_test.c | 107 -- tests/tracepoint/tracepoint_test.h | 25 - tests/ust-basic-tracing/Makefile.am | 7 - tests/ust-basic-tracing/ust-basic-tracing.c | 924 ------------------ tests/ust-multi-test/Makefile.am | 7 - tests/ust-multi-test/ust-multi-test.c | 902 ----------------- tests/ust-variant/Makefile.am | 6 - tests/ust-variant/ust-variant.c | 191 ---- 21 files changed, 2569 deletions(-) delete mode 100644 tests/trace_event/Makefile.am delete mode 100755 tests/trace_event/run delete mode 100644 tests/trace_event/trace_event_test.c delete mode 100644 tests/trace_event/trace_event_test.h delete mode 100644 tests/tracepoint/Makefile.am delete mode 100644 tests/tracepoint/benchmark/Makefile.am delete mode 100644 tests/tracepoint/benchmark/runstap.sh delete mode 100644 tests/tracepoint/benchmark/runtest.sh delete mode 100644 tests/tracepoint/benchmark/testutrace.stp delete mode 100644 tests/tracepoint/benchmark/tracepoint_benchmark.c delete mode 100644 tests/tracepoint/benchmark/tracepoint_benchmark.h delete mode 100755 tests/tracepoint/run delete mode 100644 tests/tracepoint/tracepoint_test.c delete mode 100644 tests/tracepoint/tracepoint_test.h delete mode 100644 tests/ust-basic-tracing/Makefile.am delete mode 100644 tests/ust-basic-tracing/ust-basic-tracing.c delete mode 100644 tests/ust-multi-test/Makefile.am delete mode 100644 tests/ust-multi-test/ust-multi-test.c delete mode 100644 tests/ust-variant/Makefile.am delete mode 100644 tests/ust-variant/ust-variant.c diff --git a/.gitignore b/.gitignore index 5dd6e931..c81a6ca1 100644 --- a/.gitignore +++ b/.gitignore @@ -74,11 +74,6 @@ tests/hello/hello tests/hello-many/hello-many tests/hello.cxx/hello tests/same_line_tracepoint/same_line_tracepoint -tests/ust-basic-tracing/ust-basic-tracing -tests/ust-multi-test/ust-multi-test -tests/trace_event/trace_event_test -tests/tracepoint/benchmark/tracepoint_benchmark -tests/tracepoint/tracepoint_test tests/snprintf/test_snprintf tests/ust-elf/ust-elf tests/ust-elf/test_ust_elf diff --git a/tests/trace_event/Makefile.am b/tests/trace_event/Makefile.am deleted file mode 100644 index 4d0957f2..00000000 --- a/tests/trace_event/Makefile.am +++ /dev/null @@ -1,9 +0,0 @@ -AM_CPPFLAGS = -I$(top_srcdir)/include - -noinst_PROGRAMS = trace_event_test -trace_event_test_SOURCES = trace_event_test.c trace_event_test.h -trace_event_test_LDADD = $(top_builddir)/libust/libust.la \ - $(top_builddir)/libust-initializer.o -lpthread -lrt - -CFLAGS_trace_event_test.o = -I$(src) $(AM_CFLAGS) -dist_noinst_SCRIPTS = run diff --git a/tests/trace_event/run b/tests/trace_event/run deleted file mode 100755 index 6a04341a..00000000 --- a/tests/trace_event/run +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/sh - -# Run with nothing - -UST_AUTOCOLLECT=1 UST_AUTOPROBE=1 UST_TRACE=1 LD_LIBRARY_PATH=../../libust/.libs:../../../liburcu $1 .libs/trace_event_test diff --git a/tests/trace_event/trace_event_test.c b/tests/trace_event/trace_event_test.c deleted file mode 100644 index 4c98c959..00000000 --- a/tests/trace_event/trace_event_test.c +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright (C) 2010 Nils Carlson - * Copyright (C) 2011 Mathieu Desnoyers - * - * 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 -#include - -#define TRACEPOINT_CREATE_PROBES -#include "trace_event_test.h" - -int main(int argc, char * argv[]) -{ - unsigned long time, i; - - for (i = 0; i < 10; i++) { - time = trace_clock_read64(); - tracepoint(test, time, i); - } - return 0; -} diff --git a/tests/trace_event/trace_event_test.h b/tests/trace_event/trace_event_test.h deleted file mode 100644 index 72528b82..00000000 --- a/tests/trace_event/trace_event_test.h +++ /dev/null @@ -1,46 +0,0 @@ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM trace_event_test - -#if !defined(_TRACEPOINT_EVENT_TEST_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACEPOINT_EVENT_TEST_H - -/* - * Copyright (C) 2010 Nils Carlson - * Copyright (C) 2011 Mathieu Desnoyers - * - * 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 - -TRACEPOINT_EVENT(test, - - TP_PROTO(unsigned long time, unsigned long count), - - TP_VARS(time, count), - - TP_FIELDS( - tp_field(unsigned long, time, time) - tp_field(unsigned long, count, count) - ) -); - -#endif /* _TRACEPOINT_EVENT_TEST_H */ - -/* This part must be outside protection */ -#undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . -#define TRACE_INCLUDE_FILE trace_event_test -#include diff --git a/tests/tracepoint/Makefile.am b/tests/tracepoint/Makefile.am deleted file mode 100644 index d7a50936..00000000 --- a/tests/tracepoint/Makefile.am +++ /dev/null @@ -1,14 +0,0 @@ -SUBDIRS = benchmark - -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 $(top_builddir)/libust-initializer.o - -#FIXME: this test is broken: -#ust/tests/tracepoint/tracepoint_test.c:64: undefined reference to -#`register_trace_ust_event_msg' -#CFLAGS_tracepoint_test.o = -I$(src) $(AM_CFLAGS) - -dist_noinst_SCRIPTS = run diff --git a/tests/tracepoint/benchmark/Makefile.am b/tests/tracepoint/benchmark/Makefile.am deleted file mode 100644 index 4a387074..00000000 --- a/tests/tracepoint/benchmark/Makefile.am +++ /dev/null @@ -1,7 +0,0 @@ -AM_CPPFLAGS = -I$(top_srcdir)/include - -noinst_PROGRAMS = tracepoint_benchmark -tracepoint_benchmark_SOURCES = tracepoint_benchmark.c tracepoint_benchmark.h -tracepoint_benchmark_LDADD = $(top_builddir)/libust/libust.la $(top_builddir)/libust-initializer.o -lpthread - -CFLAGS_tracepoint_benchmark.o = -I$(src) -g $(AM_CFLAGS) diff --git a/tests/tracepoint/benchmark/runstap.sh b/tests/tracepoint/benchmark/runstap.sh deleted file mode 100644 index f4e25331..00000000 --- a/tests/tracepoint/benchmark/runstap.sh +++ /dev/null @@ -1,53 +0,0 @@ -#!/bin/sh - -# Copyright (C) 2010 David Goulet -# Copyright (C) 2010 Mathieu Desnoyers -# -# 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 - -# SystemTAP benchmark - -REPORT=/tmp/testreport - -rm $REPORT - -echo "Userspace tracing scalability test report" |tee >> $REPORT - -for nr_threads in 1 2 4 8; do - echo "" | tee >> $REPORT - echo Number of threads: $nr_threads | tee >> $REPORT - echo "* Baseline" | tee >> $REPORT - - killall stapio - sleep 3 - - sync - /usr/bin/time -o /tmp/testlog ./.libs/tracepoint_benchmark ${nr_threads} - cat /tmp/testlog >> $REPORT - - echo "* Flight recorder" | tee >> $REPORT - #For flight recorder - #stap testutrace.stp -F - - #Writing to disk - stap testutrace.stp -o /tmp/stapconsole-$nr_threads & - - sleep 2 - sync - /usr/bin/time -o /tmp/testlog ./.libs/tracepoint_benchmark ${nr_threads} - cat /tmp/testlog >> $REPORT -done - -cat /tmp/testreport diff --git a/tests/tracepoint/benchmark/runtest.sh b/tests/tracepoint/benchmark/runtest.sh deleted file mode 100644 index 2f83aa85..00000000 --- a/tests/tracepoint/benchmark/runtest.sh +++ /dev/null @@ -1,55 +0,0 @@ -#!/bin/sh - -# Copyright (C) 2010 David Goulet -# Copyright (C) 2010 Mathieu Desnoyers -# -# 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 - -# UST scalability test - -REPORT=/tmp/testreport - -rm $REPORT - -echo "Userspace tracing scalability test report" |tee >> $REPORT - -for nr_threads in 1 2 4 8; do - echo "" | tee >> $REPORT - echo Number of threads: $nr_threads | tee >> $REPORT - echo "* Baseline" | tee >> $REPORT - - sync - /usr/bin/time -o /tmp/testlog ./.libs/tracepoint_benchmark ${nr_threads} - cat /tmp/testlog >> $REPORT - - #flight recorder, don't record trace to disk. - export UST_AUTOCOLLECT=0 - export UST_OVERWRITE=1 - export UST_SUBBUF_NUM=16 - #default buffer size is 4k - - #Collect traces to disk - #export UST_AUTOCOLLECT=1 - #export UST_OVERWRITE=0 - #export UST_SUBBUF_NUM=16 - #default buffer size is 4k - - echo "* Flight recorder" | tee >> $REPORT - sync - /usr/bin/time -o /tmp/testlog usttrace ./.libs/tracepoint_benchmark ${nr_threads} - cat /tmp/testlog >> $REPORT -done - -cat /tmp/testreport diff --git a/tests/tracepoint/benchmark/testutrace.stp b/tests/tracepoint/benchmark/testutrace.stp deleted file mode 100644 index ad8ed682..00000000 --- a/tests/tracepoint/benchmark/testutrace.stp +++ /dev/null @@ -1,4 +0,0 @@ -probe process("./.libs/tracepoint_benchmark").function("single_trace") { - printf("%d : %s\n", gettimeofday_ns(), $$parms); -} - diff --git a/tests/tracepoint/benchmark/tracepoint_benchmark.c b/tests/tracepoint/benchmark/tracepoint_benchmark.c deleted file mode 100644 index c1208b09..00000000 --- a/tests/tracepoint/benchmark/tracepoint_benchmark.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Copyright (C) 2010 David Goulet - * Copyright (C) 2010 Mathieu Desnoyers - * - * 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* ust_marker : - * - * 1) tracepoint named : "ust_event" - * -) Probe 1 registered and recording the value 42 - */ - -#include - -#define TRACEPOINT_CREATE_PROBES -#include "tracepoint_benchmark.h" - -/* Yes, this is now internal. */ -#include "../../../libust/type-serializer.h" - -#define NR_EVENTS 10000000 - -void tp_probe(void *data, unsigned int p1); - -DEFINE_UST_MARKER_TP(event, ust_event, tp_probe, "p1 %u"); - -/* - * Probe 1 --> ust_event - */ -void tp_probe(void *data, unsigned int p1) -{ - struct ust_marker *marker; - - marker = &GET_UST_MARKER(event); - ltt_specialized_trace(marker, data, &p1, sizeof(p1), sizeof(p1)); -} - -static void __attribute__((constructor)) init() -{ - __register_tracepoint(ust_event, tp_probe, NULL); -} - -void single_trace(unsigned int v) -{ - tracepoint(ust_event, v); -} - -void do_trace(void) -{ - long i; - - for (i = 0; i < NR_EVENTS; i++) - single_trace(42); -} - -void *thr1(void *arg) -{ - do_trace(); - return ((void*)1); -} - -int main(int argc, char **argv) -{ - int err, i; - void *tret; - pthread_t *tid; - int nr_threads; - - if (argc > 1) - nr_threads = atoi(argv[1]); - else - nr_threads = 1; - printf("Starting test for %d threads\n", nr_threads); - - tid = malloc(sizeof(*tid) * nr_threads); - - for (i = 0; i < nr_threads; i++) { - err = pthread_create(&tid[i], NULL, thr1, NULL); - if (err != 0) - exit(1); - } - - for (i = 0; i < nr_threads; i++) { - err = pthread_join(tid[i], &tret); - if (err != 0) - exit(1); - } - free(tid); - return 0; -} diff --git a/tests/tracepoint/benchmark/tracepoint_benchmark.h b/tests/tracepoint/benchmark/tracepoint_benchmark.h deleted file mode 100644 index b64fb14c..00000000 --- a/tests/tracepoint/benchmark/tracepoint_benchmark.h +++ /dev/null @@ -1,40 +0,0 @@ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM tracepoint_benchmark - -#if !defined(_TRACE_TRACEPOINT_BENCHMARK_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_TRACEPOINT_BENCHMARK_H - -/* - * Copyright (C) 2011 Mathieu Desnoyers - * - * 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 - -TRACEPOINT_EVENT(ust_event, - TP_PROTO(unsigned int v), - TP_VARS(v), - TP_FIELDS()); - -#endif /* _TRACE_TRACEPOINT_BENCHMARK_H */ - -#undef TRACE_INCLUDE_PATH -#define TRACE_INCLUDE_PATH . -#undef TRACE_INCLUDE_FILE -#define TRACE_INCLUDE_FILE tracepoint_benchmark - -/* This part must be outside protection */ -#include diff --git a/tests/tracepoint/run b/tests/tracepoint/run deleted file mode 100755 index d63f42de..00000000 --- a/tests/tracepoint/run +++ /dev/null @@ -1,23 +0,0 @@ -#!/bin/bash - -TESTDIR=$(dirname $0)/.. - -if [ ! -x "$TESTDIR/tracepoint/tracepoint_test" ]; then - echo "tracepoint_test executable is not present" - exit 1 -fi - -source $TESTDIR/test_functions.sh -source $TESTDIR/tap.sh - -starttest "Testing Tracepoints" -plan_tests 6 -USTTRACE="$TESTDIR/../usttrace" - -okx $USTTRACE -L $TESTDIR/tracepoint/tracepoint_test -trace_loc=$($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 deleted file mode 100644 index 34cdb115..00000000 --- a/tests/tracepoint/tracepoint_test.c +++ /dev/null @@ -1,107 +0,0 @@ -/* 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* ust_marker : - * - * 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_TRACEPOINT(ust_event); -DEFINE_TRACEPOINT(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++) { - ust_marker_tp(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; - ust_marker_tp(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++) { - ust_marker_tp(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++) { - ust_marker_tp(event, ust_event, tp_probe, "probe %u", p1); - } -} - -static void __attribute__((constructor)) init() -{ - register_tracepoint(ust_event, tp_probe, NULL); - register_tracepoint(ust_event, tp_probe2, NULL); - register_tracepoint(ust_event, tp_probe3, &msg_probe3); - register_tracepoint(ust_event2, tp_probe4, NULL); -} - -int main(int argc, char **argv) { - unsigned int v = 42; - /* Tracepoint 1 : ust_event */ - tracepoint(ust_event, v); - /* Tracepoint 2 : ust_event2 */ - tracepoint(ust_event2, v); - - return 0; -} diff --git a/tests/tracepoint/tracepoint_test.h b/tests/tracepoint/tracepoint_test.h deleted file mode 100644 index 717fda7d..00000000 --- a/tests/tracepoint/tracepoint_test.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright 2010 - David Goulet - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - */ -#include - -DECLARE_TRACEPOINT(ust_event, TP_PROTO(unsigned int v), TP_VARS(v)); -DECLARE_TRACEPOINT(ust_event2, TP_PROTO(unsigned int v), TP_VARS(v)); - -struct message { - char *payload; -}; diff --git a/tests/ust-basic-tracing/Makefile.am b/tests/ust-basic-tracing/Makefile.am deleted file mode 100644 index 175adc85..00000000 --- a/tests/ust-basic-tracing/Makefile.am +++ /dev/null @@ -1,7 +0,0 @@ -AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -I$(top_srcdir)/libust - -noinst_PROGRAMS = ust-basic-tracing -ust_basic_tracing_SOURCES = ust-basic-tracing.c -ust_basic_tracing_LDADD = $(top_builddir)/liblttng-ust-comm/liblttng-ust-comm.la \ - $(top_builddir)/libringbuffer/libringbuffer.la \ - $(top_builddir)/snprintf/libustsnprintf.la diff --git a/tests/ust-basic-tracing/ust-basic-tracing.c b/tests/ust-basic-tracing/ust-basic-tracing.c deleted file mode 100644 index 98be01b3..00000000 --- a/tests/ust-basic-tracing/ust-basic-tracing.c +++ /dev/null @@ -1,924 +0,0 @@ -/* - * ust-basic-tracing.c - Basic single-session, single-channel, single-process UST tracing - * - * Copyright (C) 2011 - Mathieu Desnoyers - * Copyright (C) 2011 - David Goulet - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License only. - * - * 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. - */ - -#define _LARGEFILE64_SOURCE -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include "../../libringbuffer/backend.h" -#include "../../libringbuffer/frontend.h" -#include "../../liblttng-ust/compat.h" /* For ENODATA */ - -#define MAX_NR_STREAMS 64 -#define MAX_NR_EVENTS 128 - -static int session_handle; -static struct lttng_ust_object_data metadata_stream_data; -static struct lttng_ust_object_data metadata_data; -static struct lttng_ust_object_data channel_data; -static struct lttng_ust_object_data stream_data[MAX_NR_STREAMS]; -static int event_handle[MAX_NR_EVENTS]; -static int context_handle; - -static int apps_socket = -1; -static char apps_sock_path[PATH_MAX]; -static char local_apps_wait_shm_path[PATH_MAX]; - -static volatile int quit_program; - -static void handle_signals(int signo) -{ - quit_program = 1; -} - -static -int open_streams(int sock, int channel_handle, struct lttng_ust_object_data *stream_datas, - int nr_check) -{ - int ret, k = 0; - - for (;;) { - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_handle; - lum.cmd = LTTNG_UST_STREAM; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (!ret) { - assert(k < nr_check); - stream_datas[k].handle = lur.ret_val; - printf("received stream handle %u\n", - stream_datas[k].handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - stream_datas[k].memory_map_size = lur.u.stream.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - stream_datas[k].shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - stream_datas[k].wait_fd = len; - } - k++; - } - if (ret == -LTTNG_UST_ERR_NOENT) - break; - if (ret) - return ret; - } - return 0; -} - -static -int close_streams(int sock, struct lttng_ust_object_data *stream_datas, int nr_check) -{ - int ret, k; - - for (k = 0; k < nr_check; k++) { - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - - if (!stream_datas[k].handle) - continue; - memset(&lum, 0, sizeof(lum)); - lum.handle = stream_datas[k].handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) { - printf("Error closing stream\n"); - return ret; - } - if (stream_datas[k].shm_fd >= 0) { - ret = close(stream_datas[k].shm_fd); - if (ret) { - printf("Error closing stream shm_fd\n"); - return ret; - } - } - if (stream_datas[k].wait_fd >= 0) { - ret = close(stream_datas[k].wait_fd); - if (ret) { - printf("Error closing stream wait_fd\n"); - return ret; - } - } - } - return 0; -} - -static -struct lttng_ust_shm_handle *map_channel(struct lttng_ust_object_data *chan_data, - struct lttng_ust_object_data *stream_datas, int nr_check) -{ - struct lttng_ust_shm_handle *handle; - struct channel *chan; - int k, ret; - - /* map metadata channel */ - handle = channel_handle_create(chan_data->shm_fd, - chan_data->wait_fd, - chan_data->memory_map_size); - if (!handle) { - printf("create handle error\n"); - return NULL; - } - chan_data->shm_fd = -1; - chan_data->wait_fd = -1; - chan = shmp(handle, handle->chan); - - for (k = 0; k < nr_check; k++) { - struct lttng_ust_object_data *stream_data = &stream_datas[k]; - - if (!stream_data->handle) - break; - /* map stream */ - ret = channel_handle_add_stream(handle, - stream_data->shm_fd, - stream_data->wait_fd, - stream_data->memory_map_size); - if (ret) { - printf("add stream error\n"); - goto error_destroy; - } - stream_data->shm_fd = -1; - stream_data->wait_fd = -1; - } - return handle; - -error_destroy: - channel_destroy(chan, handle, 1); - return NULL; -} - -static -void unmap_channel(struct lttng_ust_shm_handle *handle) -{ - struct channel *chan; - - chan = shmp(handle, handle->chan); - /* unmap channel */ - channel_destroy(chan, handle, 1); -} - -static -int consume_stream(struct lttng_ust_shm_handle *handle, int cpu, char *outfile) -{ - struct channel *chan; - struct lttng_ust_lib_ring_buffer *buf; - int outfd, ret; - int *shm_fd, *wait_fd; - uint64_t *memory_map_size; - - chan = shmp(handle, handle->chan); - - /* open stream */ - buf = channel_get_ring_buffer(&chan->backend.config, - chan, cpu, handle, &shm_fd, &wait_fd, &memory_map_size); - if (!buf) - return -ENOENT; - ret = lib_ring_buffer_open_read(buf, handle, 1); - if (ret) { - return -1; - } - - /* copy */ - outfd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); - if (outfd < 0) { - perror("open output"); - return -1; - } - - printf("Waiting for buffer data for %s\n", outfile); - for (;;) { - unsigned long read_size; - unsigned long copy_size; - char *ptr; - - ret = lib_ring_buffer_get_next_subbuf(buf, handle); - printf("get next ret %d\n", ret); - if (ret == -ENODATA) - break; - if (ret == -EAGAIN) { - sleep(1); - continue; - } - if (ret) { - printf("Error %d in lib_ring_buffer_get_next_subbuf\n", ret); - return -1; - } - read_size = lib_ring_buffer_get_read_data_size( - &chan->backend.config, buf, handle); - read_size = LTTNG_UST_PAGE_ALIGN(read_size); - ptr = lib_ring_buffer_read_offset_address( - &buf->backend, 0, handle); - printf("WRITE: copy %lu bytes\n", read_size); - copy_size = write(outfd, ptr, read_size); - if (copy_size < read_size) { - printf("write issue: copied %lu, expected %lu\n", copy_size, read_size); - } - lib_ring_buffer_put_next_subbuf(buf, handle); - } - - ret = close(outfd); - if (ret) { - perror("close"); - return -1; - } - - /* close stream */ - lib_ring_buffer_release_read(buf, handle, 1); - return 0; -} - -static -int consume_buffers(const char *outputpath) -{ - int k, ret; - mode_t old_umask; - char pathname[PATH_MAX]; - struct lttng_ust_shm_handle *handle; - - snprintf(pathname, PATH_MAX - 1, "%s", outputpath); - old_umask = umask(0); - ret = mkdir(pathname, S_IRWXU | S_IRWXG); - if (ret && errno != EEXIST) { - perror("mkdir"); - umask(old_umask); - return -1; - } - umask(old_umask); - - /* copy metadata */ - handle = map_channel(&metadata_data, - &metadata_stream_data, 1); - if (!handle) - return -1; - snprintf(pathname, PATH_MAX - 1, - "%s/metadata", outputpath); - ret = consume_stream(handle, -1, pathname); - if (ret && ret != -ENOENT) { - printf("Error in consume_stream\n"); - return ret; - } - unmap_channel(handle); - - /* copy binary data */ - handle = map_channel(&channel_data, - stream_data, MAX_NR_STREAMS); - if (!handle) - return -1; - for (k = 0; k < MAX_NR_STREAMS; k++) { - snprintf(pathname, PATH_MAX - 1, - "%s/data_%u", outputpath, k); - ret = consume_stream(handle, k, pathname); - if (ret && ret != -ENOENT) { - printf("Error in consume_stream\n"); - return ret; - } - } - unmap_channel(handle); - - return 0; -} - -static -int send_app_msgs(int sock, const char *outputpath, - unsigned int nr_events, const char **event_names) -{ - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - int ret, k; - - /* Create session */ - memset(&lum, 0, sizeof(lum)); - lum.handle = LTTNG_UST_ROOT_HANDLE; - lum.cmd = LTTNG_UST_SESSION; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - session_handle = lur.ret_val; - printf("received session handle %u\n", session_handle); - - /* Create metadata channel */ - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle; - lum.cmd = LTTNG_UST_METADATA; - lum.u.channel.overwrite = 0; - lum.u.channel.subbuf_size = 32768; - lum.u.channel.num_subbuf = 4; - lum.u.channel.switch_timer_interval = 0; - lum.u.channel.read_timer_interval = 0; - lum.u.channel.output = LTTNG_UST_MMAP; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - metadata_data.handle = lur.ret_val; - printf("received metadata handle %u\n", metadata_data.handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - metadata_data.memory_map_size = lur.u.channel.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - metadata_data.shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - metadata_data.wait_fd = len; - } - - ret = open_streams(sock, metadata_data.handle, - &metadata_stream_data, 1); - if (ret) { - printf("Error in open_streams\n"); - return ret; - } - - /* Create data channel */ - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle; - lum.cmd = LTTNG_UST_CHANNEL; - //lum.u.channel.overwrite = 0; - lum.u.channel.overwrite = 1; - lum.u.channel.subbuf_size = 32768; - lum.u.channel.num_subbuf = 8; - //lum.u.channel.num_subbuf = 4; - //lum.u.channel.num_subbuf = 2; - lum.u.channel.switch_timer_interval = 0; - lum.u.channel.read_timer_interval = 0; - lum.u.channel.output = LTTNG_UST_MMAP; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - channel_data.handle = lur.ret_val; - printf("received channel handle %u\n", channel_data.handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - channel_data.memory_map_size = lur.u.channel.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - channel_data.shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - channel_data.wait_fd = len; - } - - /* Create events */ - for (k = 0; k < nr_events; k++) { - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_data.handle; - lum.cmd = LTTNG_UST_EVENT; - strncpy(lum.u.event.name, event_names[k], - LTTNG_UST_SYM_NAME_LEN); - lum.u.event.instrumentation = LTTNG_UST_TRACEPOINT; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - event_handle[k] = lur.ret_val; - printf("received event handle %u\n", event_handle[k]); - } - - /* Attach vtid context */ - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_data.handle; - lum.cmd = LTTNG_UST_CONTEXT; - lum.u.context.ctx = LTTNG_UST_CONTEXT_VTID; - //lum.u.context.ctx = LTTNG_UST_CONTEXT_PTHREAD_ID; - //lum.u.context.ctx = LTTNG_UST_CONTEXT_VPID; - //lum.u.context.ctx = LTTNG_UST_CONTEXT_PROCNAME; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - context_handle = lur.ret_val; - printf("received context handle %u\n", context_handle); - - /* Get references to channel streams */ - ret = open_streams(sock, channel_data.handle, - stream_data, MAX_NR_STREAMS); - if (ret) { - printf("Error in open_streams\n"); - return ret; - } - - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle; - lum.cmd = LTTNG_UST_SESSION_START; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - printf("Session handle %u started.\n", session_handle); - - /* Tell application registration is done */ - memset(&lum, 0, sizeof(lum)); - lum.handle = LTTNG_UST_ROOT_HANDLE; - lum.cmd = LTTNG_UST_REGISTER_DONE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - printf("Registration done acknowledged.\n"); - - sleep(4); - - ret = consume_buffers(outputpath); - if (ret) { - printf("Error in consume_buffers\n"); - return ret; - } - - /* Release data channel */ - /* Release streams */ - ret = close_streams(sock, stream_data, - MAX_NR_STREAMS); - if (ret) - return ret; - - /* Release context */ - memset(&lum, 0, sizeof(lum)); - lum.handle = context_handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - - /* Release events */ - for (k = 0; k < nr_events; k++) { - memset(&lum, 0, sizeof(lum)); - lum.handle = event_handle[k]; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - } - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_data.handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - if (channel_data.shm_fd >= 0) { - ret = close(channel_data.shm_fd); - if (ret) - return ret; - } - if (channel_data.wait_fd >= 0) { - ret = close(channel_data.wait_fd); - if (ret) - return ret; - } - - /* Release metadata channel */ - ret = close_streams(sock, &metadata_stream_data, 1); - if (ret) - return ret; - - memset(&lum, 0, sizeof(lum)); - lum.handle = metadata_data.handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - if (metadata_data.shm_fd >= 0) { - ret = close(metadata_data.shm_fd); - if (ret) - return ret; - } - if (metadata_data.wait_fd >= 0) { - ret = close(metadata_data.wait_fd); - if (ret) - return ret; - } - - /* Release session */ - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - - return 0; -} - -/* - * Using fork to set umask in the child process (not multi-thread safe). We - * deal with the shm_open vs ftruncate race (happening when the sessiond owns - * the shm and does not let everybody modify it, to ensure safety against - * shm_unlink) by simply letting the mmap fail and retrying after a few - * seconds. For global shm, everybody has rw access to it until the sessiond - * starts. - */ -static int get_wait_shm(char *shm_path, size_t mmap_size, int global) -{ - int wait_shm_fd, ret; - mode_t mode; - - /* Default permissions */ - mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP; - - /* Change owner of the shm path */ - if (global) { - ret = chown(shm_path, 0, 0); - if (ret < 0) { - if (errno != ENOENT) { - perror("chown wait shm"); - goto error; - } - } - - /* - * If global session daemon, any application can register so the shm - * needs to be set in read-only mode for others. - */ - mode |= S_IROTH; - } else { - ret = chown(shm_path, getuid(), getgid()); - if (ret < 0) { - if (errno != ENOENT) { - perror("chown wait shm"); - goto error; - } - } - } - - /* - * Set permissions to the shm even if we did not create the shm. - */ - ret = chmod(shm_path, mode); - if (ret < 0) { - if (errno != ENOENT) { - perror("chmod wait shm"); - goto error; - } - } - - /* - * We're alone in a child process, so we can modify the process-wide - * umask. - */ - umask(~mode); - - /* - * Try creating shm (or get rw access). We don't do an exclusive open, - * because we allow other processes to create+ftruncate it concurrently. - */ - wait_shm_fd = shm_open(shm_path, O_RDWR | O_CREAT, mode); - if (wait_shm_fd < 0) { - perror("shm_open wait shm"); - goto error; - } - - ret = ftruncate(wait_shm_fd, mmap_size); - if (ret < 0) { - perror("ftruncate wait shm"); - exit(EXIT_FAILURE); - } - - ret = fchmod(wait_shm_fd, mode); - if (ret < 0) { - perror("fchmod"); - exit(EXIT_FAILURE); - } - - printf("Got the wait shm fd %d\n", wait_shm_fd); - - return wait_shm_fd; - -error: - printf("Failing to get the wait shm fd\n"); - - return -1; -} - -int update_futex(int fd, int active) -{ - long page_size; - char *wait_shm_mmap; - int ret; - - page_size = sysconf(_SC_PAGE_SIZE); - if (page_size <= 0) { - if (!page_size) { - errno = EINVAL; - } - perror("Error in sysconf(_SC_PAGE_SIZE)"); - goto error; - } - wait_shm_mmap = mmap(NULL, page_size, PROT_READ | PROT_WRITE, - MAP_SHARED, fd, 0); - if (wait_shm_mmap == MAP_FAILED) { - perror("mmap"); - goto error; - } - - if (active) { - uatomic_set((int32_t *) wait_shm_mmap, 1); - if (futex_async((int32_t *) wait_shm_mmap, FUTEX_WAKE, - INT_MAX, NULL, NULL, 0) < 0) { - perror("futex_async"); - goto error; - } - } else { - uatomic_set((int32_t *) wait_shm_mmap, 0); - } - ret = munmap(wait_shm_mmap, page_size); - if (ret) { - perror("Error unmapping wait shm"); - goto error; - } - return 0; -error: - return -1; -} - -/* - * Set open files limit to unlimited. This daemon can open a large number of - * file descriptors in order to consumer multiple kernel traces. - */ -static void set_ulimit(void) -{ - int ret; - struct rlimit lim; - - /* - * If not root, we cannot increase our max open files. But our - * scope is then limited to processes from a single user. - */ - if (getuid() != 0) - return; - /* The kernel does not allowed an infinite limit for open files */ - lim.rlim_cur = 65535; - lim.rlim_max = 65535; - - ret = setrlimit(RLIMIT_NOFILE, &lim); - if (ret < 0) { - perror("failed to set open files limit"); - } -} - -/* - * Usage: - * ./ust-basic-tracing outputpath event_name1 event_name2 .... - */ -int main(int argc, const char **argv) -{ - const char *home_dir; - char home_rundir[PATH_MAX]; - char *cmd = NULL; - int ret, wait_shm_fd; - struct sigaction act; - mode_t old_umask = 0; - const char *outputpath; - const char **event_names; - unsigned int nr_events; - long page_size; - - if (argc < 2) { - printf("Usage:\n"); - printf("%s outputpath event_name1 event_name2 ...\n", - argv[0]); - exit(-1); - } - outputpath = argv[1]; - event_names = &argv[2]; - nr_events = argc - 2; - - set_ulimit(); - - /* Ignore sigpipe */ - memset(&act, 0, sizeof(act)); - ret = sigemptyset(&act.sa_mask); - if (ret == -1) { - perror("sigemptyset"); - return -1; - } - - act.sa_handler = SIG_IGN; - ret = sigaction(SIGPIPE, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - - /* Handle SIGTERM */ - act.sa_handler = handle_signals; - ret = sigaction(SIGTERM, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - /* Handle SIGINT */ - ret = sigaction(SIGINT, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - - page_size = sysconf(_SC_PAGE_SIZE); - if (page_size <= 0) { - if (!page_size) { - errno = EINVAL; - } - perror("Error in sysconf(_SC_PAGE_SIZE)"); - return -1; - } - - if (geteuid() == 0) { - ret = mkdir(LTTNG_RUNDIR, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); - if (ret && errno != EEXIST) { - perror("mkdir"); - return -1; - } - wait_shm_fd = get_wait_shm(DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH, - page_size, 1); - if (wait_shm_fd < 0) { - perror("global wait shm error"); - return -1; - } - strcpy(apps_sock_path, DEFAULT_GLOBAL_APPS_UNIX_SOCK); - old_umask = umask(0); - } else { - home_dir = (const char *) getenv("HOME"); - if (!home_dir) { - perror("getenv error"); - return -ENOENT; - } - - snprintf(home_rundir, PATH_MAX, - LTTNG_HOME_RUNDIR, home_dir); - - ret = mkdir(home_rundir, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); - if (ret && errno != EEXIST) { - perror("mkdir"); - return -1; - } - - snprintf(local_apps_wait_shm_path, PATH_MAX, - DEFAULT_HOME_APPS_WAIT_SHM_PATH, getuid()); - wait_shm_fd = get_wait_shm(local_apps_wait_shm_path, - page_size, 0); - if (wait_shm_fd < 0) { - perror("local wait shm error"); - return -1; - } - snprintf(apps_sock_path, PATH_MAX, - DEFAULT_HOME_APPS_UNIX_SOCK, home_dir); - } - - ret = ustcomm_create_unix_sock(apps_sock_path); - if (ret < 0) { - perror("create error"); - return ret; - } - apps_socket = ret; - - if (getuid() == 0) { - /* File permission MUST be 666 */ - ret = chmod(apps_sock_path, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); - if (ret < 0) { - printf("Set file permissions failed: %s\n", apps_sock_path); - perror("chmod"); - goto end; - } - umask(old_umask); - } - ret = ustcomm_listen_unix_sock(apps_socket); - if (ret < 0) { - perror("listen error"); - return ret; - } - - /* wake up futexes */ - ret = update_futex(wait_shm_fd, 1); - if (ret) { - fprintf(stderr, "Error wakeup futex\n"); - return -1; - } - - for (;;) { - int sock; - ssize_t len; - struct { - uint32_t major; - uint32_t minor; - pid_t pid; - pid_t ppid; - uid_t uid; - gid_t gid; - uint32_t bits_per_long; - char name[16]; /* Process name */ - } reg_msg; - char bufname[17]; - - if (quit_program) - break; - - printf("Accepting application registration\n"); - sock = ustcomm_accept_unix_sock(apps_socket); - if (sock < 0) { - perror("accept error"); - goto end; - } - - /* - * Basic recv here to handle the very simple data - * that the libust send to register (reg_msg). - */ - len = ustcomm_recv_unix_sock(sock, ®_msg, sizeof(reg_msg)); - if (len < 0 || len != sizeof(reg_msg)) { - perror("ustcomm_recv_unix_sock"); - continue; - } - memcpy(bufname, reg_msg.name, 16); - bufname[16] = '\0'; - printf("Application %s pid %u ppid %u uid %u gid %u has registered (version : %u.%u)\n", - bufname, reg_msg.pid, reg_msg.ppid, reg_msg.uid, - reg_msg.gid, reg_msg.major, reg_msg.minor); - ret = send_app_msgs(sock, outputpath, nr_events, event_names); - if (ret) { - printf("Error in send_app_msgs.\n"); - sleep(1); - } - close(sock); - } - -end: - printf("quitting.\n"); - /* Let applications know we are not responding anymore */ - ret = update_futex(wait_shm_fd, 0); - if (ret) { - fprintf(stderr, "Error wakeup futex\n"); - return -1; - } - - if (geteuid()) { - printf("Removing %s directory\n", home_rundir); - ret = asprintf(&cmd, "rm -rf %s", home_rundir); - if (ret < 0) { - printf("asprintf failed. Something is really wrong!\n"); - return -1; - } - - /* Remove lttng run directory */ - ret = system(cmd); - if (ret < 0) { - printf("Unable to clean %s\n", home_rundir); - return -1; - } - } - - - return 0; -} diff --git a/tests/ust-multi-test/Makefile.am b/tests/ust-multi-test/Makefile.am deleted file mode 100644 index 69c7cc93..00000000 --- a/tests/ust-multi-test/Makefile.am +++ /dev/null @@ -1,7 +0,0 @@ -AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -I$(top_srcdir)/libust - -noinst_PROGRAMS = ust-multi-test -ust_multi_test_SOURCES = ust-multi-test.c -ust_multi_test_LDADD = $(top_builddir)/liblttng-ust-comm/liblttng-ust-comm.la \ - $(top_builddir)/libringbuffer/libringbuffer.la \ - $(top_builddir)/snprintf/libustsnprintf.la diff --git a/tests/ust-multi-test/ust-multi-test.c b/tests/ust-multi-test/ust-multi-test.c deleted file mode 100644 index 161cc27a..00000000 --- a/tests/ust-multi-test/ust-multi-test.c +++ /dev/null @@ -1,902 +0,0 @@ -/* - * ust-multi-test.c - single-proces, multi-session, multi-channel, multi-event UST tracing - * - * Copyright (C) 2011 - Mathieu Desnoyers - * Copyright (C) 2011 - David Goulet - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License only. - * - * 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. - */ - -#define _LARGEFILE64_SOURCE -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include <../../libringbuffer/backend.h> -#include <../../libringbuffer/frontend.h> -#include "../../liblttng-ust/compat.h" /* For ENODATA */ - -#define NR_SESSIONS 4 -#define NR_CHANNELS 1 -#define MAX_NR_STREAMS 64 -#define NR_EVENTS 3 - -const char *evname[] = { - "ust_tests_hello_tptest", - "ust_tests_hello_tptest_sighandler", - "ust_tests_hello_dontexist", -}; - -static int session_handle[NR_SESSIONS]; -static struct lttng_ust_object_data metadata_stream_data[NR_SESSIONS]; -static struct lttng_ust_object_data metadata_data[NR_SESSIONS]; -static struct lttng_ust_object_data channel_data[NR_SESSIONS][NR_CHANNELS]; -static struct lttng_ust_object_data stream_data[NR_SESSIONS][NR_CHANNELS][MAX_NR_STREAMS]; -static int event_handle[NR_SESSIONS][NR_CHANNELS][NR_EVENTS]; - -static int apps_socket = -1; -static char apps_sock_path[PATH_MAX]; -static char local_apps_wait_shm_path[PATH_MAX]; - -static volatile int quit_program; - -static void handle_signals(int signo) -{ - quit_program = 1; -} - -static -int open_streams(int sock, int channel_handle, struct lttng_ust_object_data *stream_datas, - int nr_check) -{ - int ret, k = 0; - - for (;;) { - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_handle; - lum.cmd = LTTNG_UST_STREAM; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (!ret) { - assert(k < nr_check); - stream_datas[k].handle = lur.ret_val; - printf("received stream handle %u\n", - stream_datas[k].handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - stream_datas[k].memory_map_size = lur.u.stream.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - stream_datas[k].shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - stream_datas[k].wait_fd = len; - } - k++; - } - if (ret == -LTTNG_UST_ERR_NOENT) - break; - if (ret) - return ret; - } - return 0; -} - -static -int close_streams(int sock, struct lttng_ust_object_data *stream_datas, int nr_check) -{ - int ret, k; - - for (k = 0; k < nr_check; k++) { - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - - if (!stream_datas[k].handle) - continue; - memset(&lum, 0, sizeof(lum)); - lum.handle = stream_datas[k].handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) { - printf("Error closing stream\n"); - return ret; - } - if (stream_datas[k].shm_fd >= 0) { - ret = close(stream_datas[k].shm_fd); - if (ret) { - printf("Error closing stream shm_fd\n"); - return ret; - } - } - if (stream_datas[k].wait_fd >= 0) { - ret = close(stream_datas[k].wait_fd); - if (ret) { - printf("Error closing stream wait_fd\n"); - return ret; - } - } - } - return 0; -} - -static -struct lttng_ust_shm_handle *map_channel(struct lttng_ust_object_data *chan_data, - struct lttng_ust_object_data *stream_datas, int nr_check) -{ - struct lttng_ust_shm_handle *handle; - struct channel *chan; - int k, ret; - - /* map metadata channel */ - handle = channel_handle_create(chan_data->shm_fd, - chan_data->wait_fd, - chan_data->memory_map_size); - if (!handle) { - printf("create handle error\n"); - return NULL; - } - chan_data->shm_fd = -1; - chan_data->wait_fd = -1; - chan = shmp(handle, handle->chan); - - for (k = 0; k < nr_check; k++) { - struct lttng_ust_object_data *stream_data = &stream_datas[k]; - - if (!stream_data->handle) - break; - /* map stream */ - ret = channel_handle_add_stream(handle, - stream_data->shm_fd, - stream_data->wait_fd, - stream_data->memory_map_size); - if (ret) { - printf("add stream error\n"); - goto error_destroy; - } - stream_data->shm_fd = -1; - stream_data->wait_fd = -1; - } - return handle; - -error_destroy: - channel_destroy(chan, handle, 1); - return NULL; -} - -static -void unmap_channel(struct lttng_ust_shm_handle *handle) -{ - struct channel *chan; - - chan = shmp(handle, handle->chan); - /* unmap channel */ - channel_destroy(chan, handle, 1); -} - -static -int consume_stream(struct lttng_ust_shm_handle *handle, int cpu, char *outfile) -{ - struct channel *chan; - struct lttng_ust_lib_ring_buffer *buf; - int outfd, ret; - int *shm_fd, *wait_fd; - uint64_t *memory_map_size; - - chan = shmp(handle, handle->chan); - - /* open stream */ - buf = channel_get_ring_buffer(&chan->backend.config, - chan, cpu, handle, &shm_fd, &wait_fd, &memory_map_size); - if (!buf) - return -ENOENT; - ret = lib_ring_buffer_open_read(buf, handle, 1); - if (ret) { - return -1; - } - - /* copy */ - outfd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); - if (outfd < 0) { - perror("open output"); - return -1; - } - - printf("Waiting for buffer data for %s\n", outfile); - for (;;) { - unsigned long read_size; - unsigned long copy_size; - char *ptr; - - ret = lib_ring_buffer_get_next_subbuf(buf, handle); - printf("get next ret %d\n", ret); - if (ret == -ENODATA) - break; - if (ret == -EAGAIN) { - sleep(1); - continue; - } - if (ret) { - printf("Error %d in lib_ring_buffer_get_next_subbuf\n", ret); - return -1; - } - read_size = lib_ring_buffer_get_read_data_size( - &chan->backend.config, buf, handle); - read_size = LTTNG_UST_PAGE_ALIGN(read_size); - ptr = lib_ring_buffer_read_offset_address( - &buf->backend, 0, handle); - printf("WRITE: copy %lu bytes\n", read_size); - copy_size = write(outfd, ptr, read_size); - if (copy_size < read_size) { - printf("write issue: copied %lu, expected %lu\n", copy_size, read_size); - } - lib_ring_buffer_put_next_subbuf(buf, handle); - } - - ret = close(outfd); - if (ret) { - perror("close"); - return -1; - } - - /* close stream */ - lib_ring_buffer_release_read(buf, handle, 1); - return 0; -} - -static -int consume_buffers(void) -{ - int i, j, k, ret; - mode_t old_umask; - - for (i = 0; i < NR_SESSIONS; i++) { - char pathname[PATH_MAX]; - struct lttng_ust_shm_handle *handle; - - snprintf(pathname, PATH_MAX - 1, "/tmp/testtrace%u", i); - old_umask = umask(0); - ret = mkdir(pathname, S_IRWXU | S_IRWXG); - if (ret && errno != EEXIST) { - perror("mkdir"); - umask(old_umask); - return -1; - } - umask(old_umask); - - /* copy metadata */ - handle = map_channel(&metadata_data[i], - &metadata_stream_data[i], 1); - if (!handle) - return -1; - snprintf(pathname, PATH_MAX - 1, - "/tmp/testtrace%u/metadata", i); - ret = consume_stream(handle, -1, pathname); - if (ret && ret != -ENOENT) { - printf("Error in consume_stream\n"); - return ret; - } - unmap_channel(handle); - - /* copy binary data */ - for (j = 0; j < NR_CHANNELS; j++) { - handle = map_channel(&channel_data[i][j], - stream_data[i][j], MAX_NR_STREAMS); - if (!handle) - return -1; - for (k = 0; k < MAX_NR_STREAMS; k++) { - snprintf(pathname, PATH_MAX - 1, - "/tmp/testtrace%u/data_%u", i, k); - ret = consume_stream(handle, k, pathname); - if (ret && ret != -ENOENT) { - printf("Error in consume_stream\n"); - return ret; - } - } - unmap_channel(handle); - } - } - - return 0; -} - -int send_app_msgs(int sock) -{ - struct ustcomm_ust_msg lum; - struct ustcomm_ust_reply lur; - int ret, i, j, k; - - for (i = 0; i < NR_SESSIONS; i++) { - /* Create session */ - memset(&lum, 0, sizeof(lum)); - lum.handle = LTTNG_UST_ROOT_HANDLE; - lum.cmd = LTTNG_UST_SESSION; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - session_handle[i] = lur.ret_val; - printf("received session handle %u\n", session_handle[i]); - - /* Create metadata channel */ - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle[i]; - lum.cmd = LTTNG_UST_METADATA; - lum.u.channel.overwrite = 0; - lum.u.channel.subbuf_size = 32768; - lum.u.channel.num_subbuf = 4; - lum.u.channel.switch_timer_interval = 0; - lum.u.channel.read_timer_interval = 0; - lum.u.channel.output = LTTNG_UST_MMAP; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - metadata_data[i].handle = lur.ret_val; - printf("received metadata handle %u\n", metadata_data[i].handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - metadata_data[i].memory_map_size = lur.u.channel.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - metadata_data[i].shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - metadata_data[i].wait_fd = len; - } - - ret = open_streams(sock, metadata_data[i].handle, - &metadata_stream_data[i], 1); - if (ret) { - printf("Error in open_streams\n"); - return ret; - } - - /* Create channels */ - for (j = 0; j < NR_CHANNELS; j++) { - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle[i]; - lum.cmd = LTTNG_UST_CHANNEL; - //lum.u.channel.overwrite = 0; - lum.u.channel.overwrite = 1; - lum.u.channel.subbuf_size = 32768; - lum.u.channel.num_subbuf = 8; - //lum.u.channel.num_subbuf = 4; - //lum.u.channel.num_subbuf = 2; - lum.u.channel.switch_timer_interval = 0; - lum.u.channel.read_timer_interval = 0; - lum.u.channel.output = LTTNG_UST_MMAP; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - channel_data[i][j].handle = lur.ret_val; - printf("received channel handle %u\n", channel_data[i][j].handle); - if (lur.ret_code == LTTNG_UST_OK) { - ssize_t len; - - channel_data[i][j].memory_map_size = lur.u.channel.memory_map_size; - /* get shm fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - channel_data[i][j].shm_fd = len; - /* get wait fd */ - len = ustcomm_recv_fd(sock); - if (len < 0) - return -EINVAL; - channel_data[i][j].wait_fd = len; - } - - /* Create events */ - for (k = 0; k < NR_EVENTS; k++) { - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_data[i][j].handle; - lum.cmd = LTTNG_UST_EVENT; - strncpy(lum.u.event.name, evname[k], - LTTNG_UST_SYM_NAME_LEN); - lum.u.event.instrumentation = LTTNG_UST_TRACEPOINT; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - event_handle[i][j][k] = lur.ret_val; - printf("received event handle %u\n", event_handle[i][j][k]); - } - - /* Get references to channel streams */ - ret = open_streams(sock, channel_data[i][j].handle, - stream_data[i][j], MAX_NR_STREAMS); - if (ret) { - printf("Error in open_streams\n"); - return ret; - } - } - - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle[i]; - lum.cmd = LTTNG_UST_SESSION_START; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - printf("Session handle %u started.\n", session_handle[i]); - } - - /* Tell application registration is done */ - memset(&lum, 0, sizeof(lum)); - lum.handle = LTTNG_UST_ROOT_HANDLE; - lum.cmd = LTTNG_UST_REGISTER_DONE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - printf("Registration done acknowledged.\n"); - - sleep(4); - - ret = consume_buffers(); - if (ret) { - printf("Error in consume_buffers\n"); - return ret; - } - - for (i = 0; i < NR_SESSIONS; i++) { - /* Release channels */ - for (j = 0; j < NR_CHANNELS; j++) { - /* Release streams */ - ret = close_streams(sock, stream_data[i][j], - MAX_NR_STREAMS); - if (ret) - return ret; - - /* Release events */ - for (k = 0; k < NR_EVENTS; k++) { - memset(&lum, 0, sizeof(lum)); - lum.handle = event_handle[i][j][k]; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - } - memset(&lum, 0, sizeof(lum)); - lum.handle = channel_data[i][j].handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - if (channel_data[i][j].shm_fd >= 0) { - ret = close(channel_data[i][j].shm_fd); - if (ret) - return ret; - } - if (channel_data[i][j].wait_fd >= 0) { - ret = close(channel_data[i][j].wait_fd); - if (ret) - return ret; - } - } - - /* Release metadata channel */ - ret = close_streams(sock, &metadata_stream_data[i], 1); - if (ret) - return ret; - - memset(&lum, 0, sizeof(lum)); - lum.handle = metadata_data[i].handle; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - if (metadata_data[i].shm_fd >= 0) { - ret = close(metadata_data[i].shm_fd); - if (ret) - return ret; - } - if (metadata_data[i].wait_fd >= 0) { - ret = close(metadata_data[i].wait_fd); - if (ret) - return ret; - } - - /* Release session */ - memset(&lum, 0, sizeof(lum)); - lum.handle = session_handle[i]; - lum.cmd = LTTNG_UST_RELEASE; - ret = ustcomm_send_app_cmd(sock, &lum, &lur); - if (ret) - return ret; - } - - return 0; -} - -/* - * Using fork to set umask in the child process (not multi-thread safe). We - * deal with the shm_open vs ftruncate race (happening when the sessiond owns - * the shm and does not let everybody modify it, to ensure safety against - * shm_unlink) by simply letting the mmap fail and retrying after a few - * seconds. For global shm, everybody has rw access to it until the sessiond - * starts. - */ -static int get_wait_shm(char *shm_path, size_t mmap_size, int global) -{ - int wait_shm_fd, ret; - mode_t mode; - - /* Default permissions */ - mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP; - - /* Change owner of the shm path */ - if (global) { - ret = chown(shm_path, 0, 0); - if (ret < 0) { - if (errno != ENOENT) { - perror("chown wait shm"); - goto error; - } - } - - /* - * If global session daemon, any application can register so the shm - * needs to be set in read-only mode for others. - */ - mode |= S_IROTH; - } else { - ret = chown(shm_path, getuid(), getgid()); - if (ret < 0) { - if (errno != ENOENT) { - perror("chown wait shm"); - goto error; - } - } - } - - /* - * Set permissions to the shm even if we did not create the shm. - */ - ret = chmod(shm_path, mode); - if (ret < 0) { - if (errno != ENOENT) { - perror("chmod wait shm"); - goto error; - } - } - - /* - * We're alone in a child process, so we can modify the process-wide - * umask. - */ - umask(~mode); - - /* - * Try creating shm (or get rw access). We don't do an exclusive open, - * because we allow other processes to create+ftruncate it concurrently. - */ - wait_shm_fd = shm_open(shm_path, O_RDWR | O_CREAT, mode); - if (wait_shm_fd < 0) { - perror("shm_open wait shm"); - goto error; - } - - ret = ftruncate(wait_shm_fd, mmap_size); - if (ret < 0) { - perror("ftruncate wait shm"); - exit(EXIT_FAILURE); - } - - ret = fchmod(wait_shm_fd, mode); - if (ret < 0) { - perror("fchmod"); - exit(EXIT_FAILURE); - } - - printf("Got the wait shm fd %d\n", wait_shm_fd); - - return wait_shm_fd; - -error: - printf("Failing to get the wait shm fd\n"); - - return -1; -} - -int update_futex(int fd, int active) -{ - long page_size; - char *wait_shm_mmap; - int ret; - - page_size = sysconf(_SC_PAGE_SIZE); - if (page_size <= 0) { - if (!page_size) { - errno = EINVAL; - } - perror("Error in sysconf(_SC_PAGE_SIZE)"); - goto error; - } - wait_shm_mmap = mmap(NULL, page_size, PROT_READ | PROT_WRITE, - MAP_SHARED, fd, 0); - if (wait_shm_mmap == MAP_FAILED) { - perror("mmap"); - goto error; - } - - if (active) { - uatomic_set((int32_t *) wait_shm_mmap, 1); - if (futex_async((int32_t *) wait_shm_mmap, FUTEX_WAKE, - INT_MAX, NULL, NULL, 0) < 0) { - perror("futex_async"); - goto error; - } - } else { - uatomic_set((int32_t *) wait_shm_mmap, 0); - } - ret = munmap(wait_shm_mmap, page_size); - if (ret) { - perror("Error unmapping wait shm"); - goto error; - } - return 0; -error: - return -1; -} - -/* - * Set open files limit to unlimited. This daemon can open a large number of - * file descriptors in order to consumer multiple kernel traces. - */ -static void set_ulimit(void) -{ - int ret; - struct rlimit lim; - - /* - * If not root, we cannot increase our max open files. But our - * scope is then limited to processes from a single user. - */ - if (getuid() != 0) - return; - /* The kernel does not allowed an infinite limit for open files */ - lim.rlim_cur = 65535; - lim.rlim_max = 65535; - - ret = setrlimit(RLIMIT_NOFILE, &lim); - if (ret < 0) { - perror("failed to set open files limit"); - } -} - -int main(int argc, char **argv) -{ - const char *home_dir; - char home_rundir[PATH_MAX]; - char *cmd = NULL; - int ret, wait_shm_fd; - struct sigaction act; - mode_t old_umask = 0; - long page_size; - - set_ulimit(); - - /* Ignore sigpipe */ - memset(&act, 0, sizeof(act)); - ret = sigemptyset(&act.sa_mask); - if (ret == -1) { - perror("sigemptyset"); - return -1; - } - - act.sa_handler = SIG_IGN; - ret = sigaction(SIGPIPE, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - - /* Handle SIGTERM */ - act.sa_handler = handle_signals; - ret = sigaction(SIGTERM, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - /* Handle SIGINT */ - ret = sigaction(SIGINT, &act, NULL); - if (ret == -1) { - perror("sigaction"); - return -1; - } - - page_size = sysconf(_SC_PAGE_SIZE); - if (page_size <= 0) { - if (!page_size) { - errno = EINVAL; - } - perror("Error in sysconf(_SC_PAGE_SIZE)"); - return -1; - } - - if (geteuid() == 0) { - ret = mkdir(LTTNG_RUNDIR, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); - if (ret && errno != EEXIST) { - perror("mkdir"); - return -1; - } - wait_shm_fd = get_wait_shm(DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH, - page_size, 1); - if (wait_shm_fd < 0) { - perror("global wait shm error"); - return -1; - } - strcpy(apps_sock_path, DEFAULT_GLOBAL_APPS_UNIX_SOCK); - old_umask = umask(0); - } else { - home_dir = (const char *) getenv("HOME"); - if (!home_dir) { - perror("getenv error"); - return -ENOENT; - } - - snprintf(home_rundir, PATH_MAX, - LTTNG_HOME_RUNDIR, home_dir); - - ret = mkdir(home_rundir, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); - if (ret && errno != EEXIST) { - perror("mkdir"); - return -1; - } - - snprintf(local_apps_wait_shm_path, PATH_MAX, - DEFAULT_HOME_APPS_WAIT_SHM_PATH, getuid()); - wait_shm_fd = get_wait_shm(local_apps_wait_shm_path, - page_size, 0); - if (wait_shm_fd < 0) { - perror("local wait shm error"); - return -1; - } - snprintf(apps_sock_path, PATH_MAX, - DEFAULT_HOME_APPS_UNIX_SOCK, home_dir); - } - - ret = ustcomm_create_unix_sock(apps_sock_path); - if (ret < 0) { - perror("create error"); - return ret; - } - apps_socket = ret; - - if (getuid() == 0) { - /* File permission MUST be 666 */ - ret = chmod(apps_sock_path, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); - if (ret < 0) { - printf("Set file permissions failed: %s\n", apps_sock_path); - perror("chmod"); - goto end; - } - umask(old_umask); - } - ret = ustcomm_listen_unix_sock(apps_socket); - if (ret < 0) { - perror("listen error"); - return ret; - } - - /* wake up futexes */ - ret = update_futex(wait_shm_fd, 1); - if (ret) { - fprintf(stderr, "Error wakeup futex\n"); - return -1; - } - - for (;;) { - int sock; - ssize_t len; - struct { - uint32_t major; - uint32_t minor; - pid_t pid; - pid_t ppid; - uid_t uid; - gid_t gid; - uint32_t bits_per_long; - char name[16]; /* Process name */ - } reg_msg; - char bufname[17]; - - if (quit_program) - break; - - printf("Accepting application registration\n"); - sock = ustcomm_accept_unix_sock(apps_socket); - if (sock < 0) { - perror("accept error"); - goto end; - } - - /* - * Basic recv here to handle the very simple data - * that the libust send to register (reg_msg). - */ - len = ustcomm_recv_unix_sock(sock, ®_msg, sizeof(reg_msg)); - if (len < 0 || len != sizeof(reg_msg)) { - perror("ustcomm_recv_unix_sock"); - continue; - } - memcpy(bufname, reg_msg.name, 16); - bufname[16] = '\0'; - printf("Application %s pid %u ppid %u uid %u gid %u has registered (version : %u.%u)\n", - bufname, reg_msg.pid, reg_msg.ppid, reg_msg.uid, - reg_msg.gid, reg_msg.major, reg_msg.minor); - ret = send_app_msgs(sock); - if (ret) { - printf("Error in send_app_msgs.\n"); - sleep(1); - } - close(sock); - } - -end: - printf("quitting.\n"); - /* Let applications know we are not responding anymore */ - ret = update_futex(wait_shm_fd, 0); - if (ret) { - fprintf(stderr, "Error wakeup futex\n"); - return -1; - } - - if (geteuid()) { - printf("Removing %s directory\n", home_rundir); - ret = asprintf(&cmd, "rm -rf %s", home_rundir); - if (ret < 0) { - printf("asprintf failed. Something is really wrong!\n"); - return -1; - } - - /* Remove lttng run directory */ - ret = system(cmd); - if (ret < 0) { - printf("Unable to clean %s\n", home_rundir); - return -1; - } - } - - return 0; -} diff --git a/tests/ust-variant/Makefile.am b/tests/ust-variant/Makefile.am deleted file mode 100644 index 28e62009..00000000 --- a/tests/ust-variant/Makefile.am +++ /dev/null @@ -1,6 +0,0 @@ -AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -Wsystem-headers - -noinst_PROGRAMS = ust-variant -ust_variant_SOURCES = ust-variant.c -ust_variant_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la $(DL_LIBS) -ust_variant_CFLAGS = -Werror=old-style-definition $(AM_CFLAGS) diff --git a/tests/ust-variant/ust-variant.c b/tests/ust-variant/ust-variant.c deleted file mode 100644 index 9a449fd4..00000000 --- a/tests/ust-variant/ust-variant.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * Copyright (C) 2016 Mathieu Desnoyers - * - * 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; version 2.1 of - * the License. - * - * 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 -#include -#include -#include - -/* Internal UST API: ust-variant.h */ -#include -#include -#include - -#define NR_ENTRIES 5 - -static const struct lttng_enum_entry myentries[NR_ENTRIES] = { - [0] = { - .start = 0, - .end = 0, - .string = "_mystring", - }, - [1] = { - .start = 1, - .end = 1, - .string = "_myint32", - }, - [2] = { - .start = 2, - .end = 2, - .string = "_myuint16", - }, - [3] = { - .start = 3, - .end = 3, - .string = "_mychar", - }, - [4] = { - .start = 4, - .end = 4, - .string = "_mylonglong", - }, -}; - -static const struct lttng_enum_desc myenum_desc = { - .name = "myenum", - .entries = myentries, - .nr_entries = LTTNG_ARRAY_SIZE(myentries), -}; - -const struct lttng_event_field myvarfields[NR_ENTRIES] = { - [0] = { - .name = "mystring", - .type = { - .atype = atype_string, - .u.basic.string.encoding = lttng_encode_UTF8, - }, - .nowrite = 0, - }, - [1] = { - .name = "myint32", - .type = __type_integer(int32_t, BYTE_ORDER, 10, none), - .nowrite = 0, - }, - [2] = { - .name = "myuint16", - .type = __type_integer(uint16_t, BYTE_ORDER, 10, none), - .nowrite = 0, - }, - [3] = { - .name = "mychar", - .type = __type_integer(char, BYTE_ORDER, 10, none), - .nowrite = 0, - }, - [4] = { - .name = "mylonglong", - .type = __type_integer(long long, BYTE_ORDER, 10, none), - .nowrite = 0, - }, -}; - -static const struct lttng_event_field *get_field(const struct lttng_ust_type_variant *variant, - int64_t value) -{ - if (value >= NR_ENTRIES || value < 0) - return NULL; - return &myvarfields[value]; -} - -static int get_choices(const struct lttng_ust_type_variant *variant, - size_t *nr_choices, const struct lttng_event_field **choices) -{ - *nr_choices = NR_ENTRIES; - *choices = myvarfields; - return 0; -} - -static const struct lttng_event_field myfields[]; - -static const struct lttng_ust_type_variant myvariant = { - .tag = &myfields[0], - .get_field = get_field, - .get_choices = get_choices, - .free_priv = NULL, - .priv = NULL, -}; - -/* dummy event */ - -static void __event_probe__myprobe___myevent(void * __tp_data) -{ -} - -static const struct lttng_event_field myfields[] = { - [0] = { - .name = "mytag", - .type.atype = atype_enum_nestable, - .type.u.enum_nestable.desc = &myenum_desc, - .type.u.enum_nestable.container_type = - __LTTNG_COMPOUND_LITERAL(struct lttng_type, - __type_integer(char, BYTE_ORDER, 10, none)), - .nowrite = 0, - }, - [1] = { - .name = "myfield", - .type = { - .atype = atype_variant_nestable, - .u.variant_nestable = &myvariant, - }, - .nowrite = 0, - }, -}; - -static const struct lttng_event_desc myevent_desc = { - .name = "myprobe:myevent", - .probe_callback = (void (*)(void)) &__event_probe__myprobe___myevent, - .ctx = NULL, - .fields = myfields, - .nr_fields = LTTNG_ARRAY_SIZE(myfields), - .loglevel = NULL, - .signature = "mysig", - .u = { - .ext = { - .model_emf_uri = NULL, - }, - }, -}; - -static const struct lttng_event_desc *event_desc_array[] = { - [0] = &myevent_desc, -}; - -/* Dummy probe. */ - -static struct lttng_probe_desc __probe_desc___myprobe = { - .provider = "myprobe", - .event_desc = event_desc_array, - .nr_events = LTTNG_ARRAY_SIZE(event_desc_array), - .head = { NULL, NULL }, - .lazy_init_head = { NULL, NULL }, - .lazy = 0, - .major = LTTNG_UST_PROVIDER_MAJOR, - .minor = LTTNG_UST_PROVIDER_MINOR, -}; - -int main(int argc, char **argv) -{ - int ret; - - ret = lttng_probe_register(&__probe_desc___myprobe); - if (ret) - abort(); - sleep(5); - lttng_probe_unregister(&__probe_desc___myprobe); - - return 0; -} -- 2.34.1