diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2020-05-12 15:19:19 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-07-10 08:30:25 -0300 |
| commit | 789e24199810dcd64106ac7b703ea463693e780c (patch) | |
| tree | 960d7ce3fca1dc681bdef4725b646eabe5617140 /tools/perf/util/machine.c | |
| parent | 246eba8e9041c4774738645c72b6efac7601db22 (diff) | |
perf tools: Add support for PERF_RECORD_KSYMBOL_TYPE_OOL
PERF_RECORD_KSYMBOL_TYPE_OOL marks an executable page. Create a map
backed only by memory, which will be populated as necessary by text poke
events.
Committer notes:
From the patch:
OOL stands for "Out of line" code such as kprobe-replaced instructions
or optimized kprobes or ftrace trampolines.
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/20200512121922.8997-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.c')
| -rw-r--r-- | tools/perf/util/machine.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 1e9fe6b4d8db..a81859532571 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -762,6 +762,12 @@ static int machine__process_ksymbol_register(struct machine *machine, return -ENOMEM; } + if (event->ksymbol.ksym_type == PERF_RECORD_KSYMBOL_TYPE_OOL) { + map->dso->binary_type = DSO_BINARY_TYPE__OOL; + map->dso->data.file_size = event->ksymbol.len; + dso__set_loaded(map->dso); + } + map->start = event->ksymbol.addr; map->end = map->start + event->ksymbol.len; maps__insert(&machine->kmaps, map); |