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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-04-24 17:24:49 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-04-26 19:47:07 +0300 |
| commit | 4546263d72e22ea84b49dafad26d8ca679d5e83d (patch) | |
| tree | fa9d0ee378ceaf87c5cdc5d10f978f1dd0072e8e /tools/perf/util/unwind-libdw.c | |
| parent | ea40b6d3222e5feef178d9b49baead28e9b5fe20 (diff) | |
| download | linux-4546263d72e22ea84b49dafad26d8ca679d5e83d.tar.xz | |
perf thread: Introduce thread__find_symbol()
Out of thread__find_addr_location(..., MAP__FUNCTION, ...), idea here is to
continue removing references to MAP__{FUNCTION,VARIABLE} ahead of
getting both types of symbols in the same rbtree, as various places do
two lookups, looking first at MAP__FUNCTION, then at MAP__VARIABLE.
So thread__find_symbol() will eventually do just that, and 'struct
symbol' will have the symbol type, for code that cares about that.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-n7528en9e08yd3flzmb26tth@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/unwind-libdw.c')
| -rw-r--r-- | tools/perf/util/unwind-libdw.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c index 1ce8744649b5..bdc22f1864df 100644 --- a/tools/perf/util/unwind-libdw.c +++ b/tools/perf/util/unwind-libdw.c @@ -28,10 +28,11 @@ static int __report_module(struct addr_location *al, u64 ip, { Dwfl_Module *mod; struct dso *dso = NULL; - - thread__find_addr_location(ui->thread, - PERF_RECORD_MISC_USER, - MAP__FUNCTION, ip, al); + /* + * Some callers will use al->sym, so we can't just use the + * cheaper thread__find_map() here. + */ + thread__find_symbol(ui->thread, PERF_RECORD_MISC_USER, ip, al); if (al->map) dso = al->map->dso; |