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perf tools: Add support for PERF_RECORD_TEXT_POKE

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Add processing for PERF_RECORD_TEXT_POKE events. When a text poke event
is processed, then the kernel dso data cache is updated with the poked
bytes.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20200512121922.8997-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2020-05-12 15:19:18 +03:00
committed by Arnaldo Carvalho de Melo
parent b39730a663
commit 246eba8e90
14 changed files with 216 additions and 3 deletions
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9
tools/lib/perf/include/perf/event.h
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@@ -111,6 +111,14 @@ struct perf_record_cgroup {
char path[PATH_MAX];
};
struct perf_record_text_poke_event {
struct perf_event_header header;
__u64 addr;
__u16 old_len;
__u16 new_len;
__u8 bytes[];
};
struct perf_record_sample {
struct perf_event_header header;
__u64 array[];
@@ -367,6 +375,7 @@ union perf_event {
struct perf_record_sample sample;
struct perf_record_bpf_event bpf;
struct perf_record_ksymbol ksymbol;
struct perf_record_text_poke_event text_poke;
struct perf_record_header_attr attr;
struct perf_record_event_update event_update;
struct perf_record_header_event_type event_type;