5c5e854bc7
This patch adds support for the new PERF_RECORD_MMAP2 record type
exposed by the kernel. This is an extended PERF_RECORD_MMAP record.
It adds for each file-backed mapping the device major, minor number and
the inode number and generation.
This triplet uniquely identifies the source of a file-backed mapping. It
can be used to detect identical virtual mappings between processes, for
instance.
The patch will prefer MMAP2 over MMAP.
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1377079825-19057-3-git-send-email-eranian@google.com
[ Cope with 314add6 "Change machine__findnew_thread() to set thread pid",
fix 'perf test' regression test entry affected,
use perf_missing_features.mmap2 to fallback to not using .mmap2 in older kernels,
so that new tools can work with kernels where this feature is not present ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
48 lines
1 KiB
C
48 lines
1 KiB
C
#ifndef __PERF_TOOL_H
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#define __PERF_TOOL_H
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#include <stdbool.h>
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struct perf_session;
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union perf_event;
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struct perf_evlist;
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struct perf_evsel;
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struct perf_sample;
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struct perf_tool;
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struct machine;
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typedef int (*event_sample)(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample,
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struct perf_evsel *evsel, struct machine *machine);
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typedef int (*event_op)(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct machine *machine);
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typedef int (*event_attr_op)(struct perf_tool *tool,
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union perf_event *event,
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struct perf_evlist **pevlist);
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typedef int (*event_op2)(struct perf_tool *tool, union perf_event *event,
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struct perf_session *session);
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struct perf_tool {
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event_sample sample,
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read;
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event_op mmap,
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mmap2,
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comm,
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fork,
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exit,
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lost,
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throttle,
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unthrottle;
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event_attr_op attr;
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event_op2 tracing_data;
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event_op2 finished_round,
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build_id;
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bool ordered_samples;
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bool ordering_requires_timestamps;
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};
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#endif /* __PERF_TOOL_H */
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