diff options
Diffstat (limited to 'tools/perf/builtin-inject.c')
-rw-r--r-- | tools/perf/builtin-inject.c | 182 |
1 files changed, 171 insertions, 11 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 40a33d7334cc..01b06492bd6a 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -16,6 +16,7 @@ #include "util/debug.h" #include "util/build-id.h" #include "util/data.h" +#include "util/auxtrace.h" #include "util/parse-options.h" @@ -26,10 +27,12 @@ struct perf_inject { struct perf_session *session; bool build_ids; bool sched_stat; + bool have_auxtrace; const char *input_name; struct perf_data_file output; u64 bytes_written; struct list_head samples; + struct itrace_synth_opts itrace_synth_opts; }; struct event_entry { @@ -38,14 +41,11 @@ struct event_entry { union perf_event event[0]; }; -static int perf_event__repipe_synth(struct perf_tool *tool, - union perf_event *event) +static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) { - struct perf_inject *inject = container_of(tool, struct perf_inject, tool); ssize_t size; - size = perf_data_file__write(&inject->output, event, - event->header.size); + size = perf_data_file__write(&inject->output, buf, sz); if (size < 0) return -errno; @@ -53,6 +53,15 @@ static int perf_event__repipe_synth(struct perf_tool *tool, return 0; } +static int perf_event__repipe_synth(struct perf_tool *tool, + union perf_event *event) +{ + struct perf_inject *inject = container_of(tool, struct perf_inject, + tool); + + return output_bytes(inject, event, event->header.size); +} + static int perf_event__repipe_oe_synth(struct perf_tool *tool, union perf_event *event, struct ordered_events *oe __maybe_unused) @@ -86,6 +95,79 @@ static int perf_event__repipe_attr(struct perf_tool *tool, return perf_event__repipe_synth(tool, event); } +#ifdef HAVE_AUXTRACE_SUPPORT + +static int copy_bytes(struct perf_inject *inject, int fd, off_t size) +{ + char buf[4096]; + ssize_t ssz; + int ret; + + while (size > 0) { + ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); + if (ssz < 0) + return -errno; + ret = output_bytes(inject, buf, ssz); + if (ret) + return ret; + size -= ssz; + } + + return 0; +} + +static s64 perf_event__repipe_auxtrace(struct perf_tool *tool, + union perf_event *event, + struct perf_session *session + __maybe_unused) +{ + struct perf_inject *inject = container_of(tool, struct perf_inject, + tool); + int ret; + + inject->have_auxtrace = true; + + if (!inject->output.is_pipe) { + off_t offset; + + offset = lseek(inject->output.fd, 0, SEEK_CUR); + if (offset == -1) + return -errno; + ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, + event, offset); + if (ret < 0) + return ret; + } + + if (perf_data_file__is_pipe(session->file) || !session->one_mmap) { + ret = output_bytes(inject, event, event->header.size); + if (ret < 0) + return ret; + ret = copy_bytes(inject, perf_data_file__fd(session->file), + event->auxtrace.size); + } else { + ret = output_bytes(inject, event, + event->header.size + event->auxtrace.size); + } + if (ret < 0) + return ret; + + return event->auxtrace.size; +} + +#else + +static s64 +perf_event__repipe_auxtrace(struct perf_tool *tool __maybe_unused, + union perf_event *event __maybe_unused, + struct perf_session *session __maybe_unused) +{ + pr_err("AUX area tracing not supported\n"); + return -EINVAL; +} + +#endif + static int perf_event__repipe(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample __maybe_unused, @@ -155,6 +237,32 @@ static int perf_event__repipe_fork(struct perf_tool *tool, return err; } +static int perf_event__repipe_comm(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + int err; + + err = perf_event__process_comm(tool, event, sample, machine); + perf_event__repipe(tool, event, sample, machine); + + return err; +} + +static int perf_event__repipe_exit(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + int err; + + err = perf_event__process_exit(tool, event, sample, machine); + perf_event__repipe(tool, event, sample, machine); + + return err; +} + static int perf_event__repipe_tracing_data(struct perf_tool *tool, union perf_event *event, struct perf_session *session) @@ -167,6 +275,18 @@ static int perf_event__repipe_tracing_data(struct perf_tool *tool, return err; } +static int perf_event__repipe_id_index(struct perf_tool *tool, + union perf_event *event, + struct perf_session *session) +{ + int err; + + perf_event__repipe_synth(tool, event); + err = perf_event__process_id_index(tool, event, session); + + return err; +} + static int dso__read_build_id(struct dso *dso) { if (dso->has_build_id) @@ -245,6 +365,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool, } } + thread__put(thread); repipe: perf_event__repipe(tool, event, sample, machine); return 0; @@ -351,16 +472,20 @@ static int __cmd_inject(struct perf_inject *inject) struct perf_session *session = inject->session; struct perf_data_file *file_out = &inject->output; int fd = perf_data_file__fd(file_out); + u64 output_data_offset; signal(SIGINT, sig_handler); - if (inject->build_ids || inject->sched_stat) { + if (inject->build_ids || inject->sched_stat || + inject->itrace_synth_opts.set) { inject->tool.mmap = perf_event__repipe_mmap; inject->tool.mmap2 = perf_event__repipe_mmap2; inject->tool.fork = perf_event__repipe_fork; inject->tool.tracing_data = perf_event__repipe_tracing_data; } + output_data_offset = session->header.data_offset; + if (inject->build_ids) { inject->tool.sample = perf_event__inject_buildid; } else if (inject->sched_stat) { @@ -379,17 +504,43 @@ static int __cmd_inject(struct perf_inject *inject) else if (!strncmp(name, "sched:sched_stat_", 17)) evsel->handler = perf_inject__sched_stat; } + } else if (inject->itrace_synth_opts.set) { + session->itrace_synth_opts = &inject->itrace_synth_opts; + inject->itrace_synth_opts.inject = true; + inject->tool.comm = perf_event__repipe_comm; + inject->tool.exit = perf_event__repipe_exit; + inject->tool.id_index = perf_event__repipe_id_index; + inject->tool.auxtrace_info = perf_event__process_auxtrace_info; + inject->tool.auxtrace = perf_event__process_auxtrace; + inject->tool.ordered_events = true; + inject->tool.ordering_requires_timestamps = true; + /* Allow space in the header for new attributes */ + output_data_offset = 4096; } + if (!inject->itrace_synth_opts.set) + auxtrace_index__free(&session->auxtrace_index); + if (!file_out->is_pipe) - lseek(fd, session->header.data_offset, SEEK_SET); + lseek(fd, output_data_offset, SEEK_SET); ret = perf_session__process_events(session); if (!file_out->is_pipe) { - if (inject->build_ids) + if (inject->build_ids) { perf_header__set_feat(&session->header, HEADER_BUILD_ID); + if (inject->have_auxtrace) + dsos__hit_all(session); + } + /* + * The AUX areas have been removed and replaced with + * synthesized hardware events, so clear the feature flag. + */ + if (inject->itrace_synth_opts.set) + perf_header__clear_feat(&session->header, + HEADER_AUXTRACE); + session->header.data_offset = output_data_offset; session->header.data_size = inject->bytes_written; perf_session__write_header(session, session->evlist, fd, true); } @@ -408,11 +559,16 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) .fork = perf_event__repipe, .exit = perf_event__repipe, .lost = perf_event__repipe, + .aux = perf_event__repipe, + .itrace_start = perf_event__repipe, .read = perf_event__repipe_sample, .throttle = perf_event__repipe, .unthrottle = perf_event__repipe, .attr = perf_event__repipe_attr, .tracing_data = perf_event__repipe_op2_synth, + .auxtrace_info = perf_event__repipe_op2_synth, + .auxtrace = perf_event__repipe_auxtrace, + .auxtrace_error = perf_event__repipe_op2_synth, .finished_round = perf_event__repipe_oe_synth, .build_id = perf_event__repipe_op2_synth, .id_index = perf_event__repipe_op2_synth, @@ -444,6 +600,9 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", "kallsyms pathname"), OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), + OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, + NULL, "opts", "Instruction Tracing options", + itrace_parse_synth_opts), OPT_END() }; const char * const inject_usage[] = { @@ -471,12 +630,13 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) if (inject.session == NULL) return -1; - if (symbol__init(&inject.session->header.env) < 0) - return -1; + ret = symbol__init(&inject.session->header.env); + if (ret < 0) + goto out_delete; ret = __cmd_inject(&inject); +out_delete: perf_session__delete(inject.session); - return ret; } |