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perf machine: Keep zero in pgoff BPF map 

With pgoff set to zero, the map__map_ip function will return BPF
addresses based from 0, which is what we need when we read the data from
a BPF DSO.

Adding BPF symbols with mapped IP addresses as well.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislav Fomichev <sdf@google.com>
Link: http://lkml.kernel.org/r/20190508132010.14512-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-05-08 15:20:04 +02:00 committed by Arnaldo Carvalho de Melo
parent a2d8a1585e
commit 8529f2e673
1 changed files with 2 additions and 2 deletions
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4
tools/perf/util/machine.c
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@ -704,12 +704,12 @@ static int machine__process_ksymbol_register(struct machine *machine,
return -ENOMEM; return -ENOMEM;
map->start = event->ksymbol_event.addr; map->start = event->ksymbol_event.addr;
map->pgoff = map->start;
map->end = map->start + event->ksymbol_event.len; map->end = map->start + event->ksymbol_event.len;
map_groups__insert(&machine->kmaps, map); map_groups__insert(&machine->kmaps, map);
} }
sym = symbol__new(event->ksymbol_event.addr, event->ksymbol_event.len, sym = symbol__new(map->map_ip(map, map->start),
event->ksymbol_event.len,
0, 0, event->ksymbol_event.name); 0, 0, event->ksymbol_event.name);
if (!sym) if (!sym)
return -ENOMEM; return -ENOMEM;