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perf map: Add map__refcnt() accessor to use in the maps test

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To remove one more direct access to 'struct map' so that we can intecept
accesses to its instantiations and refcount check it to catch use after
free, etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Link: https://lore.kernel.org/lkml/ZDbRIJknafLnDwtO@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2023-04-12 12:36:58 -03:00
parent 984abd349d
commit 4e8db2d752
2 changed files with 7 additions and 2 deletions
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4
tools/perf/tests/maps.c
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@@ -30,7 +30,7 @@ static int check_maps(struct map_def *merged, unsigned int size, struct maps *ma
if (map__start(map) != merged[i].start ||
map__end(map) != merged[i].end ||
strcmp(map__dso(map)->name, merged[i].name) ||
refcount_read(&map->refcnt) != 1) {
refcount_read(map__refcnt(map)) != 1) {
failed = true;
}
i++;
@@ -50,7 +50,7 @@ static int check_maps(struct map_def *merged, unsigned int size, struct maps *ma
map__start(map),
map__end(map),
map__dso(map)->name,
refcount_read(&map->refcnt));
refcount_read(map__refcnt(map)));
}
}
return failed ? TEST_FAIL : TEST_OK;