diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-15 22:58:23 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-30 00:34:41 +0300 |
| commit | c8c805707ed4c5d976210821da3242af8610a533 (patch) | |
| tree | cd9cac3a3125d9742dbb19860d338298d9847bc3 /tools | |
| parent | af4a0991f40a1e50e5caff0317f152df2c82bdeb (diff) | |
| download | linux-c8c805707ed4c5d976210821da3242af8610a533.tar.xz | |
perf trace: Add pointer to BPF object containing __augmented_syscalls__
So that we can use it when looking for other components of that object
file, such as other programs to add to the BPF_MAP_TYPE_PROG_ARRAY and
use with bpf_tail_call().
Cc: Adrian Hunter <adrian.hunter@intel.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-1ibmz7ouv6llqxajy7m8igtd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-trace.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 4f0bbffee05f..6aa080845a84 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -96,6 +96,7 @@ struct trace { struct perf_evlist *evlist; struct machine *host; struct thread *current; + struct bpf_object *bpf_obj; struct cgroup *cgroup; u64 base_time; FILE *output; @@ -3895,6 +3896,20 @@ int cmd_trace(int argc, const char **argv) if (evsel) { trace.syscalls.events.augmented = evsel; + + evsel = perf_evlist__find_tracepoint_by_name(trace.evlist, "raw_syscalls:sys_enter"); + if (evsel == NULL) { + pr_err("ERROR: raw_syscalls:sys_enter not found in the augmented BPF object\n"); + goto out; + } + + if (evsel->bpf_obj == NULL) { + pr_err("ERROR: raw_syscalls:sys_enter not associated to a BPF object\n"); + goto out; + } + + trace.bpf_obj = evsel->bpf_obj; + trace__set_bpf_map_filtered_pids(&trace); trace__set_bpf_map_syscalls(&trace); } |