util/scripting-engines/trace-event-python.c

1078 	fprintf(stderr, "Tracepoint events are not supported because "
1969 		fprintf(stderr, "Error running python script %s\n", script);
1975 		fprintf(stderr, "Error starting python script %s\n", script);
2033 		fprintf(stderr, "couldn't open %s\n", fname);
2036 	fprintf(ofp, "# perf script event handlers, "
2039 	fprintf(ofp, "# Licensed under the terms of the GNU GPL"
2042 	fprintf(ofp, "# The common_* event handler fields are the most useful "
2045 	fprintf(ofp, "# all events.  They don't necessarily correspond to "
2048 	fprintf(ofp, "# in the format files.  Those fields not available as "
2051 	fprintf(ofp, "# be retrieved using Python functions of the form "
2054 	fprintf(ofp, "# See the perf-script-python Documentation for the list "
2057 	fprintf(ofp, "from __future__ import print_function\n\n");
2058 	fprintf(ofp, "import os\n");
2059 	fprintf(ofp, "import sys\n\n");
2061 	fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
2062 	fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
2063 	fprintf(ofp, "\nfrom perf_trace_context import *\n");
2064 	fprintf(ofp, "from Core import *\n\n\n");
2066 	fprintf(ofp, "def trace_begin():\n");
2067 	fprintf(ofp, "\tprint(\"in trace_begin\")\n\n");
2069 	fprintf(ofp, "def trace_end():\n");
2070 	fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
2077 		fprintf(ofp, "def %s__%s(", event->system, event->name);
2078 		fprintf(ofp, "event_name, ");
2079 		fprintf(ofp, "context, ");
2080 		fprintf(ofp, "common_cpu,\n");
2081 		fprintf(ofp, "\tcommon_secs, ");
2082 		fprintf(ofp, "common_nsecs, ");
2083 		fprintf(ofp, "common_pid, ");
2084 		fprintf(ofp, "common_comm,\n\t");
2085 		fprintf(ofp, "common_callchain, ");
2092 				fprintf(ofp, ", ");
2094 				fprintf(ofp, "\n\t");
2096 			fprintf(ofp, "%s", f->name);
2099 			fprintf(ofp, ", ");
2101 			fprintf(ofp, "\n\t\t");
2102 		fprintf(ofp, "perf_sample_dict");
2104 		fprintf(ofp, "):\n");
2106 		fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
2110 		fprintf(ofp, "\t\tprint(\"");
2117 				fprintf(ofp, ", ");
2119 				fprintf(ofp, "\" \\\n\t\t\"");
2123 			fprintf(ofp, "%s=", f->name);
2128 				fprintf(ofp, "%%s");
2130 				fprintf(ofp, "%%d");
2132 				fprintf(ofp, "%%u");
2135 		fprintf(ofp, "\" %% \\\n\t\t(");
2142 				fprintf(ofp, ", ");
2145 				fprintf(ofp, "\n\t\t");
2149 					fprintf(ofp, "\n\t\t");
2152 				fprintf(ofp, "flag_str(\"");
2153 				fprintf(ofp, "%s__%s\", ", event->system,
2155 				fprintf(ofp, "\"%s\", %s)", f->name,
2159 					fprintf(ofp, "\n\t\t");
2162 				fprintf(ofp, "symbol_str(\"");
2163 				fprintf(ofp, "%s__%s\", ", event->system,
2165 				fprintf(ofp, "\"%s\", %s)", f->name,
2168 				fprintf(ofp, "%s", f->name);
2171 		fprintf(ofp, "))\n\n");
2173 		fprintf(ofp, "\t\tprint('Sample: {'+"
2176 		fprintf(ofp, "\t\tfor node in common_callchain:");
2177 		fprintf(ofp, "\n\t\t\tif 'sym' in node:");
2178 		fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x] %%s%%s%%s%%s\" %% (");
2179 		fprintf(ofp, "\n\t\t\t\t\tnode['ip'], node['sym']['name'],");
2180 		fprintf(ofp, "\n\t\t\t\t\t\"+0x{:x}\".format(node['sym_off']) if 'sym_off' in node else \"\",");
2181 		fprintf(ofp, "\n\t\t\t\t\t\" ({})\".format(node['dso'])  if 'dso' in node else \"\",");
2182 		fprintf(ofp, "\n\t\t\t\t\t\" \" + node['sym_srcline'] if 'sym_srcline' in node else \"\"))");
2183 		fprintf(ofp, "\n\t\t\telse:");
2184 		fprintf(ofp, "\n\t\t\t\tprint(\"\t[%%x]\" %% (node['ip']))\n\n");
2185 		fprintf(ofp, "\t\tprint()\n\n");
2189 	fprintf(ofp, "def trace_unhandled(event_name, context, "
2192 	fprintf(ofp, "\t\tprint(get_dict_as_string(event_fields_dict))\n");
2193 	fprintf(ofp, "\t\tprint('Sample: {'+"
2196 	fprintf(ofp, "def print_header("
2201 	fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
2207 	fprintf(stderr, "generated Python script: %s\n", fname);
2215 	fprintf(stderr, "Generating Python perf-script is not supported."