| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 004/107] perf trace: Add pointer to BPF object containing __augmented_syscalls__ | Date | Mon, 29 Jul 2019 23:54:27 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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> --- tools/perf/builtin-trace.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
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); } -- 2.21.0
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