Added basic tools to dump babeltrace2 trace format.

opencl/Makefile.am

@@ -111,6 +111,9 @@ libTracerOpenCL_la_LDFLAGS += -Wl,--version-script,$(srcdir)/tracer_opencl.map -
 libTracerOpenCL_la_DEPENDS = $(srcdir)/tracer_opencl.map
 libTracerOpenCL_la_LIBADD = libtracepoints.la
 
+thapi_session: libTracerOpenCL.la
+	$(top_srcdir)/utils/lttng_dummy_trace.sh ./.libs/libTracerOpenCL.so lttng_ust_opencl:\*,lttng_ust_opencl_build:\*,lttng_ust_opencl_arguments:\*,lttng_ust_opencl_dump:\*,lttng_ust_opencl_profiling:\*,lttng_ust_opencl_source:\*,lttng_ust_opencl_devices:\*
+
 install-exec-hook:
 	$(MKDIR_P) $(DESTDIR)$(pkglibdir)/opencl
 	$(LN_S) -f $(DESTDIR)$(libdir)/libTracerOpenCL.so.1.0.0 $(DESTDIR)$(pkglibdir)/opencl/libOpenCL.so.1

utils/dump_trace_format.rb

+require 'babeltrace2'
+require 'yaml'
+require 'find'
+require 'set'
+
+path = ARGV[0]
+trace_location = Find.find(path).select { |f|
+  File.basename(f) == "metadata" }.collect { |f|
+  File.dirname(f)
+}.uniq
+
+graph = BT2::BTGraph.new
+ctf_fs = BT2::BTPlugin.find("ctf").get_source_component_class_by_name("fs")
+utils_muxer = BT2::BTPlugin.find("utils").get_filter_component_class_by_name("muxer")
+printed = false
+
+comp1 = graph.add(ctf_fs, "trace", params: {"inputs" => trace_location})
+comp2 = graph.add(utils_muxer, "mux")
+comp3 = graph.add_simple_sink("print", lambda { |iterator, _|
+  mess = iterator.next_messages
+  mess.each { |m|
+    if !printed
+      puts YAML.dump(m.stream.get_class.trace_class.to_h)
+      printed = true
+    end
+  }
+})
+comp1.output_ports.each_with_index { |op, i|
+  ip = comp2.input_port(i)
+  graph.connect_ports(op, ip)
+}
+graph.connect_ports(comp2.output_port(0), comp3.input_port(0))
+graph.run

utils/lttng_dummy_trace.sh

+#!/bin/sh
+lttng-sessiond --daemonize --quiet
+lttng create thapi-session --output=./thapi-session
+lttng enable-channel --userspace --blocking-timeout=inf blocking-channel
+lttng add-context --userspace --channel=blocking-channel -t vpid -t vtid
+lttng enable-event --channel=blocking-channel --userspace $2
+lttng start
+LD_PRELOAD=$1 rm
+lttng stop
+lttng destroy