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84 lines
2.4 KiB
84 lines
2.4 KiB
# perf script event handlers, generated by perf script -g python |
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# (c) 2010, Tom Zanussi <[email protected]> |
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# Licensed under the terms of the GNU GPL License version 2 |
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# |
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# This script tests basic functionality such as flag and symbol |
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# strings, common_xxx() calls back into perf, begin, end, unhandled |
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# events, etc. Basically, if this script runs successfully and |
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# displays expected results, Python scripting support should be ok. |
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from __future__ import print_function |
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import os |
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import sys |
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \ |
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace') |
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from Core import * |
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from perf_trace_context import * |
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unhandled = autodict() |
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def trace_begin(): |
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print("trace_begin") |
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pass |
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def trace_end(): |
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print_unhandled() |
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def irq__softirq_entry(event_name, context, common_cpu, |
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common_secs, common_nsecs, common_pid, common_comm, |
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common_callchain, vec): |
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print_header(event_name, common_cpu, common_secs, common_nsecs, |
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common_pid, common_comm) |
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print_uncommon(context) |
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print("vec=%s" % (symbol_str("irq__softirq_entry", "vec", vec))) |
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def kmem__kmalloc(event_name, context, common_cpu, |
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common_secs, common_nsecs, common_pid, common_comm, |
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common_callchain, call_site, ptr, bytes_req, bytes_alloc, |
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gfp_flags): |
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print_header(event_name, common_cpu, common_secs, common_nsecs, |
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common_pid, common_comm) |
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print_uncommon(context) |
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print("call_site=%u, ptr=%u, bytes_req=%u, " |
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"bytes_alloc=%u, gfp_flags=%s" % |
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(call_site, ptr, bytes_req, bytes_alloc, |
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flag_str("kmem__kmalloc", "gfp_flags", gfp_flags))) |
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def trace_unhandled(event_name, context, event_fields_dict): |
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try: |
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unhandled[event_name] += 1 |
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except TypeError: |
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unhandled[event_name] = 1 |
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def print_header(event_name, cpu, secs, nsecs, pid, comm): |
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print("%-20s %5u %05u.%09u %8u %-20s " % |
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(event_name, cpu, secs, nsecs, pid, comm), |
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end=' ') |
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# print trace fields not included in handler args |
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def print_uncommon(context): |
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print("common_preempt_count=%d, common_flags=%s, " |
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"common_lock_depth=%d, " % |
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(common_pc(context), trace_flag_str(common_flags(context)), |
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common_lock_depth(context))) |
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def print_unhandled(): |
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keys = unhandled.keys() |
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if not keys: |
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return |
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print("\nunhandled events:\n") |
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print("%-40s %10s" % ("event", "count")) |
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print("%-40s %10s" % ("----------------------------------------", |
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"-----------")) |
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for event_name in keys: |
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print("%-40s %10d\n" % (event_name, unhandled[event_name]))
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