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perf tool: Add a delegate_tool that just delegates actions to another tool
Add an ability to be able to compose perf_tools, by having one perform an action and then calling a delegate. Currently the perf_tools have if-then-elses setting the callback and then if-then-elses within the callback. Understanding the behavior is complex as it is in two places and logic for numerous operations, within things like perf inject, is interwoven. By chaining perf_tools together based on command line options this kind of code can be avoided. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers
Namhyung Kim
parent
71062e282d
commit
6331b26693
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@ -321,3 +321,174 @@ bool perf_tool__compressed_is_stub(const struct perf_tool *tool)
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{
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return tool->compressed == perf_session__process_compressed_event_stub;
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}
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#define CREATE_DELEGATE_SAMPLE(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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union perf_event *event, \
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struct perf_sample *sample, \
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struct evsel *evsel, \
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struct machine *machine) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, event, sample, evsel, machine); \
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}
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CREATE_DELEGATE_SAMPLE(read);
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CREATE_DELEGATE_SAMPLE(sample);
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#define CREATE_DELEGATE_ATTR(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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union perf_event *event, \
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struct evlist **pevlist) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, event, pevlist); \
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}
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CREATE_DELEGATE_ATTR(attr);
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CREATE_DELEGATE_ATTR(event_update);
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#define CREATE_DELEGATE_OE(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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union perf_event *event, \
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struct ordered_events *oe) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, event, oe); \
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}
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CREATE_DELEGATE_OE(finished_round);
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#define CREATE_DELEGATE_OP(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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union perf_event *event, \
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struct perf_sample *sample, \
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struct machine *machine) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, event, sample, machine); \
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}
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CREATE_DELEGATE_OP(aux);
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CREATE_DELEGATE_OP(aux_output_hw_id);
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CREATE_DELEGATE_OP(bpf);
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CREATE_DELEGATE_OP(cgroup);
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CREATE_DELEGATE_OP(comm);
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CREATE_DELEGATE_OP(context_switch);
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CREATE_DELEGATE_OP(exit);
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CREATE_DELEGATE_OP(fork);
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CREATE_DELEGATE_OP(itrace_start);
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CREATE_DELEGATE_OP(ksymbol);
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CREATE_DELEGATE_OP(lost);
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CREATE_DELEGATE_OP(lost_samples);
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CREATE_DELEGATE_OP(mmap);
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CREATE_DELEGATE_OP(mmap2);
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CREATE_DELEGATE_OP(namespaces);
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CREATE_DELEGATE_OP(text_poke);
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CREATE_DELEGATE_OP(throttle);
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CREATE_DELEGATE_OP(unthrottle);
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#define CREATE_DELEGATE_OP2(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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struct perf_session *session, \
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union perf_event *event) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, session, event); \
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}
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CREATE_DELEGATE_OP2(auxtrace_error);
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CREATE_DELEGATE_OP2(auxtrace_info);
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CREATE_DELEGATE_OP2(bpf_metadata);
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CREATE_DELEGATE_OP2(build_id);
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CREATE_DELEGATE_OP2(cpu_map);
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CREATE_DELEGATE_OP2(feature);
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CREATE_DELEGATE_OP2(finished_init);
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CREATE_DELEGATE_OP2(id_index);
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CREATE_DELEGATE_OP2(stat);
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CREATE_DELEGATE_OP2(stat_config);
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CREATE_DELEGATE_OP2(stat_round);
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CREATE_DELEGATE_OP2(thread_map);
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CREATE_DELEGATE_OP2(time_conv);
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CREATE_DELEGATE_OP2(tracing_data);
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#define CREATE_DELEGATE_OP3(name) \
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static s64 delegate_ ## name(const struct perf_tool *tool, \
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struct perf_session *session, \
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union perf_event *event) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, session, event); \
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}
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CREATE_DELEGATE_OP3(auxtrace);
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#define CREATE_DELEGATE_OP4(name) \
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static int delegate_ ## name(const struct perf_tool *tool, \
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struct perf_session *session, \
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union perf_event *event, \
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u64 data, \
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const char *str) \
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{ \
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struct delegate_tool *del_tool = container_of(tool, struct delegate_tool, tool); \
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struct perf_tool *delegate = del_tool->delegate; \
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return delegate->name(delegate, session, event, data, str); \
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}
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CREATE_DELEGATE_OP4(compressed);
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void delegate_tool__init(struct delegate_tool *tool, struct perf_tool *delegate)
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{
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tool->delegate = delegate;
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tool->tool.ordered_events = delegate->ordered_events;
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tool->tool.ordering_requires_timestamps = delegate->ordering_requires_timestamps;
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tool->tool.namespace_events = delegate->namespace_events;
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tool->tool.cgroup_events = delegate->cgroup_events;
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tool->tool.no_warn = delegate->no_warn;
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tool->tool.show_feat_hdr = delegate->show_feat_hdr;
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tool->tool.sample = delegate_sample;
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tool->tool.read = delegate_read;
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tool->tool.mmap = delegate_mmap;
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tool->tool.mmap2 = delegate_mmap2;
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tool->tool.comm = delegate_comm;
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tool->tool.namespaces = delegate_namespaces;
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tool->tool.cgroup = delegate_cgroup;
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tool->tool.fork = delegate_fork;
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tool->tool.exit = delegate_exit;
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tool->tool.lost = delegate_lost;
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tool->tool.lost_samples = delegate_lost_samples;
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tool->tool.aux = delegate_aux;
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tool->tool.itrace_start = delegate_itrace_start;
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tool->tool.aux_output_hw_id = delegate_aux_output_hw_id;
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tool->tool.context_switch = delegate_context_switch;
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tool->tool.throttle = delegate_throttle;
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tool->tool.unthrottle = delegate_unthrottle;
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tool->tool.ksymbol = delegate_ksymbol;
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tool->tool.bpf = delegate_bpf;
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tool->tool.text_poke = delegate_text_poke;
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tool->tool.attr = delegate_attr;
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tool->tool.event_update = delegate_event_update;
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tool->tool.tracing_data = delegate_tracing_data;
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tool->tool.finished_round = delegate_finished_round;
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tool->tool.build_id = delegate_build_id;
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tool->tool.id_index = delegate_id_index;
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tool->tool.auxtrace_info = delegate_auxtrace_info;
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tool->tool.auxtrace_error = delegate_auxtrace_error;
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tool->tool.time_conv = delegate_time_conv;
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tool->tool.thread_map = delegate_thread_map;
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tool->tool.cpu_map = delegate_cpu_map;
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tool->tool.stat_config = delegate_stat_config;
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tool->tool.stat = delegate_stat;
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tool->tool.stat_round = delegate_stat_round;
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tool->tool.feature = delegate_feature;
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tool->tool.finished_init = delegate_finished_init;
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tool->tool.bpf_metadata = delegate_bpf_metadata;
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tool->tool.compressed = delegate_compressed;
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tool->tool.auxtrace = delegate_auxtrace;
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}
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@ -102,4 +102,13 @@ int process_event_sample_stub(const struct perf_tool *tool,
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struct evsel *evsel,
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struct machine *machine);
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struct delegate_tool {
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/** @tool: The actual tool that calls the delegate. */
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struct perf_tool tool;
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/** @delegate: The tool that is delegated to. */
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struct perf_tool *delegate;
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};
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void delegate_tool__init(struct delegate_tool *tool, struct perf_tool *delegate);
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#endif /* __PERF_TOOL_H */
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