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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-15 17:03:10 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-29 18:34:41 -0300 |
| commit | 5ca0b7f5004a5f1a35c1cb47894790ad98e34ed1 (patch) | |
| tree | 051b2247e272b5a4a0bd5b6e38435a66f5a8a62b | |
| parent | c8c805707ed4c5d976210821da3242af8610a533 (diff) | |
| download | linux-stable-5ca0b7f5004a5f1a35c1cb47894790ad98e34ed1.tar.gz linux-stable-5ca0b7f5004a5f1a35c1cb47894790ad98e34ed1.tar.bz2 linux-stable-5ca0b7f5004a5f1a35c1cb47894790ad98e34ed1.zip | |
perf trace: Look up maps just on the __augmented_syscalls__ BPF object
We can conceivably have multiple BPF object files for other purposes, so
better look just on the BPF object containing the __augmented_syscalls__
map for all things augmented_syscalls related.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-3jt8knkuae9lt705r1lns202@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/builtin-trace.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 6aa080845a84..bfd739a321d1 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -3669,28 +3669,22 @@ static int trace__parse_cgroups(const struct option *opt, const char *str, int u return 0; } -static struct bpf_map *bpf__find_map_by_name(const char *name) +static struct bpf_map *trace__find_bpf_map_by_name(struct trace *trace, const char *name) { - struct bpf_object *obj, *tmp; - - bpf_object__for_each_safe(obj, tmp) { - struct bpf_map *map = bpf_object__find_map_by_name(obj, name); - if (map) - return map; - - } + if (trace->bpf_obj == NULL) + return NULL; - return NULL; + return bpf_object__find_map_by_name(trace->bpf_obj, name); } static void trace__set_bpf_map_filtered_pids(struct trace *trace) { - trace->filter_pids.map = bpf__find_map_by_name("pids_filtered"); + trace->filter_pids.map = trace__find_bpf_map_by_name(trace, "pids_filtered"); } static void trace__set_bpf_map_syscalls(struct trace *trace) { - trace->syscalls.map = bpf__find_map_by_name("syscalls"); + trace->syscalls.map = trace__find_bpf_map_by_name(trace, "syscalls"); } static int trace__config(const char *var, const char *value, void *arg) @@ -3924,7 +3918,7 @@ int cmd_trace(int argc, const char **argv) err = -1; if (map_dump_str) { - trace.dump.map = bpf__find_map_by_name(map_dump_str); + trace.dump.map = trace__find_bpf_map_by_name(&trace, map_dump_str); if (trace.dump.map == NULL) { pr_err("ERROR: BPF map \"%s\" not found\n", map_dump_str); goto out; |