perf tools: Apply correct label to user/kernel symbols in branch mode

In branch mode, the branch symbols were being displayed with incorrect
cpumode labels. So fix this.

For example, before:
  # perf record -b -a -- sleep 1
  # perf report -b

  Overhead  Command  Source Shared Object  Source Symbol               Target Symbol
     0.08%  swapper  [kernel.kallsyms]     [k] rcu_idle_enter          [k] cpuidle_enter_state
 ==> 0.08%  cmd0     [kernel.kallsyms]     [.] psi_group_change        [.] psi_group_change
     0.08%  cmd1     [kernel.kallsyms]     [k] psi_group_change        [k] psi_group_change

After:
  # perf report -b

  Overhead  Command  Source Shared Object  Source Symbol               Target Symbol
     0.08%  swapper  [kernel.kallsyms]     [k] rcu_idle_enter          [k] cpuidle_enter_state
     0.08%  cmd0     [kernel.kallsyms]     [k] psi_group_change        [k] pei_group_change
     0.08%  cmd1     [kernel.kallsyms]     [k] psi_group_change        [k] psi_group_change

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220126105927.3411216-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index f70ba56..3945500 100644 (file)
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -2073,6 +2073,7 @@ static void ip__resolve_ams(struct thread *thread,
 
        ams->addr = ip;
        ams->al_addr = al.addr;
+       ams->al_level = al.level;
        ams->ms.maps = al.maps;
        ams->ms.sym = al.sym;
        ams->ms.map = al.map;
@@ -2092,6 +2093,7 @@ static void ip__resolve_data(struct thread *thread,
 
        ams->addr = addr;
        ams->al_addr = al.addr;
+       ams->al_level = al.level;
        ams->ms.maps = al.maps;
        ams->ms.sym = al.sym;
        ams->ms.map = al.map;

diff --git a/tools/perf/util/map_symbol.h b/tools/perf/util/map_symbol.h
index 7d22ade..e08817b 100644 (file)
--- a/tools/perf/util/map_symbol.h
+++ b/tools/perf/util/map_symbol.h
@@ -18,6 +18,7 @@ struct addr_map_symbol {
        struct map_symbol ms;
        u64           addr;
        u64           al_addr;
+       char          al_level;
        u64           phys_addr;
        u64           data_page_size;
 };

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index cfba8c3..2da081e 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -915,7 +915,7 @@ static int hist_entry__sym_from_snprintf(struct hist_entry *he, char *bf,
                struct addr_map_symbol *from = &he->branch_info->from;
 
                return _hist_entry__sym_snprintf(&from->ms, from->al_addr,
-                                                he->level, bf, size, width);
+                                                from->al_level, bf, size, width);
        }
 
        return repsep_snprintf(bf, size, "%-*.*s", width, width, "N/A");
@@ -928,7 +928,7 @@ static int hist_entry__sym_to_snprintf(struct hist_entry *he, char *bf,
                struct addr_map_symbol *to = &he->branch_info->to;
 
                return _hist_entry__sym_snprintf(&to->ms, to->al_addr,
-                                                he->level, bf, size, width);
+                                                to->al_level, bf, size, width);
        }
 
        return repsep_snprintf(bf, size, "%-*.*s", width, width, "N/A");