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perf map: Move maj/min/ino/ino_generation to separate struct

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And this patch highlights where these fields are being used: in the sort
order where it uses it to compare maps and classify samples taking into
account not just the DSO, but those DSO id fields.

I think these should be used to differentiate DSOs with the same name
but different 'struct dso_id' fields, i.e. these fields should move to
'struct dso' and then be used as part of the key when doing lookups for
DSOs, in addition to the DSO name.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-8v5isitqy0dup47nnwkpc80f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-11-19 12:26:19 -03:00
parent 8f6ee51d77
commit 99459a84d5
4 changed files with 28 additions and 20 deletions
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24
tools/perf/util/sort.c
View file

@ -1212,17 +1212,17 @@ sort__dcacheline_cmp(struct hist_entry *left, struct hist_entry *right)
if (!l_map) return -1;
if (!r_map) return 1;
if (l_map->maj > r_map->maj) return -1;
if (l_map->maj < r_map->maj) return 1;
if (l_map->dso_id.maj > r_map->dso_id.maj) return -1;
if (l_map->dso_id.maj < r_map->dso_id.maj) return 1;
if (l_map->min > r_map->min) return -1;
if (l_map->min < r_map->min) return 1;
if (l_map->dso_id.min > r_map->dso_id.min) return -1;
if (l_map->dso_id.min < r_map->dso_id.min) return 1;
if (l_map->ino > r_map->ino) return -1;
if (l_map->ino < r_map->ino) return 1;
if (l_map->dso_id.ino > r_map->dso_id.ino) return -1;
if (l_map->dso_id.ino < r_map->dso_id.ino) return 1;
if (l_map->ino_generation > r_map->ino_generation) return -1;
if (l_map->ino_generation < r_map->ino_generation) return 1;
if (l_map->dso_id.ino_generation > r_map->dso_id.ino_generation) return -1;
if (l_map->dso_id.ino_generation < r_map->dso_id.ino_generation) return 1;
/*
* Addresses with no major/minor numbers are assumed to be
@ -1234,8 +1234,8 @@ sort__dcacheline_cmp(struct hist_entry *left, struct hist_entry *right)
if ((left->cpumode != PERF_RECORD_MISC_KERNEL) &&
(!(l_map->flags & MAP_SHARED)) &&
!l_map->maj && !l_map->min && !l_map->ino &&
!l_map->ino_generation) {
!l_map->dso_id.maj && !l_map->dso_id.min &&
!l_map->dso_id.ino && !l_map->dso_id.ino_generation) {
/* userspace anonymous */
if (left->thread->pid_ > right->thread->pid_) return -1;
@ -1271,8 +1271,8 @@ static int hist_entry__dcacheline_snprintf(struct hist_entry *he, char *bf,
if ((he->cpumode != PERF_RECORD_MISC_KERNEL) &&
map && !(map->prot & PROT_EXEC) &&
(map->flags & MAP_SHARED) &&
(map->maj || map->min || map->ino ||
map->ino_generation))
(map->dso_id.maj || map->dso_id.min ||
map->dso_id.ino || map->dso_id.ino_generation))
level = 's';
else if (!map)
level = 'X';