diff options
| author | Andi Kleen <ak@linux.intel.com> | 2014-11-12 18:05:19 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-11-19 12:33:47 -0300 |
| commit | 37592b8afb7151994e760d1727c264329d9c13c8 (patch) | |
| tree | 26be637f989a6c45c42a29f24a9531c600432f6a /tools/perf | |
| parent | ee205503f2333d639550eaed37abb455733510a3 (diff) | |
| download | linux-rpi3-37592b8afb7151994e760d1727c264329d9c13c8.tar.gz linux-rpi3-37592b8afb7151994e760d1727c264329d9c13c8.tar.bz2 linux-rpi3-37592b8afb7151994e760d1727c264329d9c13c8.zip | |
perf callchain: Factor out adding new call chain entries
Move the code to resolve and add a new callchain entry into a new
add_callchain_ip function. This will be used in the next patches to add
LBRs too.
No change in behavior.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1415844328-4884-2-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/machine.c | 51 |
1 files changed, 32 insertions, 19 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 52e94902afb1..84390eecab06 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1381,6 +1381,34 @@ struct mem_info *sample__resolve_mem(struct perf_sample *sample, return mi; } +static int add_callchain_ip(struct thread *thread, + struct symbol **parent, + struct addr_location *root_al, + int cpumode, + u64 ip) +{ + struct addr_location al; + + al.filtered = 0; + al.sym = NULL; + thread__find_addr_location(thread, cpumode, MAP__FUNCTION, + ip, &al); + if (al.sym != NULL) { + if (sort__has_parent && !*parent && + symbol__match_regex(al.sym, &parent_regex)) + *parent = al.sym; + else if (have_ignore_callees && root_al && + symbol__match_regex(al.sym, &ignore_callees_regex)) { + /* Treat this symbol as the root, + forgetting its callees. */ + *root_al = al; + callchain_cursor_reset(&callchain_cursor); + } + } + + return callchain_cursor_append(&callchain_cursor, ip, al.map, al.sym); +} + struct branch_info *sample__resolve_bstack(struct perf_sample *sample, struct addr_location *al) { @@ -1427,7 +1455,6 @@ static int thread__resolve_callchain_sample(struct thread *thread, for (i = 0; i < chain_nr; i++) { u64 ip; - struct addr_location al; if (callchain_param.order == ORDER_CALLEE) j = i; @@ -1464,24 +1491,10 @@ static int thread__resolve_callchain_sample(struct thread *thread, continue; } - al.filtered = 0; - thread__find_addr_location(thread, cpumode, - MAP__FUNCTION, ip, &al); - if (al.sym != NULL) { - if (sort__has_parent && !*parent && - symbol__match_regex(al.sym, &parent_regex)) - *parent = al.sym; - else if (have_ignore_callees && root_al && - symbol__match_regex(al.sym, &ignore_callees_regex)) { - /* Treat this symbol as the root, - forgetting its callees. */ - *root_al = al; - callchain_cursor_reset(&callchain_cursor); - } - } - - err = callchain_cursor_append(&callchain_cursor, - ip, al.map, al.sym); + err = add_callchain_ip(thread, parent, root_al, + cpumode, ip); + if (err == -EINVAL) + break; if (err) return err; } |