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954 lines
25 KiB
954 lines
25 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* builtin-inject.c |
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* |
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* Builtin inject command: Examine the live mode (stdin) event stream |
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* and repipe it to stdout while optionally injecting additional |
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* events into it. |
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*/ |
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#include "builtin.h" |
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|
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#include "util/color.h" |
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#include "util/dso.h" |
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#include "util/vdso.h" |
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#include "util/evlist.h" |
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#include "util/evsel.h" |
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#include "util/map.h" |
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#include "util/session.h" |
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#include "util/tool.h" |
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#include "util/debug.h" |
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#include "util/build-id.h" |
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#include "util/data.h" |
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#include "util/auxtrace.h" |
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#include "util/jit.h" |
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#include "util/symbol.h" |
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#include "util/synthetic-events.h" |
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#include "util/thread.h" |
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#include "util/namespaces.h" |
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|
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#include <linux/err.h> |
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#include <subcmd/parse-options.h> |
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#include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ |
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|
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#include <linux/list.h> |
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#include <errno.h> |
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#include <signal.h> |
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struct perf_inject { |
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struct perf_tool tool; |
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struct perf_session *session; |
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bool build_ids; |
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bool build_id_all; |
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bool sched_stat; |
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bool have_auxtrace; |
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bool strip; |
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bool jit_mode; |
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const char *input_name; |
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struct perf_data output; |
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u64 bytes_written; |
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u64 aux_id; |
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struct list_head samples; |
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struct itrace_synth_opts itrace_synth_opts; |
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char event_copy[PERF_SAMPLE_MAX_SIZE]; |
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}; |
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|
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struct event_entry { |
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struct list_head node; |
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u32 tid; |
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union perf_event event[]; |
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}; |
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|
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static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
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struct machine *machine, u8 cpumode, u32 flags); |
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|
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static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
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{ |
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ssize_t size; |
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|
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size = perf_data__write(&inject->output, buf, sz); |
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if (size < 0) |
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return -errno; |
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inject->bytes_written += size; |
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return 0; |
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} |
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|
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static int perf_event__repipe_synth(struct perf_tool *tool, |
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union perf_event *event) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, |
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tool); |
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return output_bytes(inject, event, event->header.size); |
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} |
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static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
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union perf_event *event, |
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struct ordered_events *oe __maybe_unused) |
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{ |
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return perf_event__repipe_synth(tool, event); |
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} |
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|
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#ifdef HAVE_JITDUMP |
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static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
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union perf_event *event __maybe_unused, |
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struct ordered_events *oe __maybe_unused) |
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{ |
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return 0; |
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} |
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#endif |
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|
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static int perf_event__repipe_op2_synth(struct perf_session *session, |
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union perf_event *event) |
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{ |
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return perf_event__repipe_synth(session->tool, event); |
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} |
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static int perf_event__repipe_op4_synth(struct perf_session *session, |
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union perf_event *event, |
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u64 data __maybe_unused) |
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{ |
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return perf_event__repipe_synth(session->tool, event); |
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} |
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static int perf_event__repipe_attr(struct perf_tool *tool, |
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union perf_event *event, |
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struct evlist **pevlist) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, |
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tool); |
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int ret; |
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ret = perf_event__process_attr(tool, event, pevlist); |
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if (ret) |
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return ret; |
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if (!inject->output.is_pipe) |
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return 0; |
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return perf_event__repipe_synth(tool, event); |
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} |
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static int perf_event__repipe_event_update(struct perf_tool *tool, |
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union perf_event *event, |
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struct evlist **pevlist __maybe_unused) |
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{ |
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return perf_event__repipe_synth(tool, event); |
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} |
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#ifdef HAVE_AUXTRACE_SUPPORT |
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static int copy_bytes(struct perf_inject *inject, int fd, off_t size) |
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{ |
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char buf[4096]; |
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ssize_t ssz; |
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int ret; |
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while (size > 0) { |
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ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); |
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if (ssz < 0) |
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return -errno; |
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ret = output_bytes(inject, buf, ssz); |
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if (ret) |
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return ret; |
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size -= ssz; |
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} |
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return 0; |
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} |
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static s64 perf_event__repipe_auxtrace(struct perf_session *session, |
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union perf_event *event) |
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{ |
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struct perf_tool *tool = session->tool; |
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struct perf_inject *inject = container_of(tool, struct perf_inject, |
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tool); |
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int ret; |
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inject->have_auxtrace = true; |
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if (!inject->output.is_pipe) { |
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off_t offset; |
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offset = lseek(inject->output.file.fd, 0, SEEK_CUR); |
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if (offset == -1) |
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return -errno; |
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ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, |
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event, offset); |
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if (ret < 0) |
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return ret; |
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} |
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if (perf_data__is_pipe(session->data) || !session->one_mmap) { |
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ret = output_bytes(inject, event, event->header.size); |
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if (ret < 0) |
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return ret; |
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ret = copy_bytes(inject, perf_data__fd(session->data), |
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event->auxtrace.size); |
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} else { |
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ret = output_bytes(inject, event, |
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event->header.size + event->auxtrace.size); |
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} |
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if (ret < 0) |
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return ret; |
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return event->auxtrace.size; |
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} |
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#else |
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static s64 |
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perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused, |
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union perf_event *event __maybe_unused) |
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{ |
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pr_err("AUX area tracing not supported\n"); |
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return -EINVAL; |
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} |
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#endif |
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static int perf_event__repipe(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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return perf_event__repipe_synth(tool, event); |
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} |
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static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
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union perf_event *event __maybe_unused, |
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struct perf_sample *sample __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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return 0; |
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} |
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static int perf_event__drop_aux(struct perf_tool *tool, |
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union perf_event *event __maybe_unused, |
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struct perf_sample *sample, |
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struct machine *machine __maybe_unused) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
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if (!inject->aux_id) |
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inject->aux_id = sample->id; |
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return 0; |
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} |
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static union perf_event * |
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perf_inject__cut_auxtrace_sample(struct perf_inject *inject, |
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union perf_event *event, |
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struct perf_sample *sample) |
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{ |
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size_t sz1 = sample->aux_sample.data - (void *)event; |
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size_t sz2 = event->header.size - sample->aux_sample.size - sz1; |
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union perf_event *ev = (union perf_event *)inject->event_copy; |
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if (sz1 > event->header.size || sz2 > event->header.size || |
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sz1 + sz2 > event->header.size || |
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sz1 < sizeof(struct perf_event_header) + sizeof(u64)) |
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return event; |
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memcpy(ev, event, sz1); |
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memcpy((void *)ev + sz1, (void *)event + event->header.size - sz2, sz2); |
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ev->header.size = sz1 + sz2; |
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((u64 *)((void *)ev + sz1))[-1] = 0; |
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return ev; |
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} |
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typedef int (*inject_handler)(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct evsel *evsel, |
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struct machine *machine); |
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static int perf_event__repipe_sample(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct evsel *evsel, |
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struct machine *machine) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, |
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tool); |
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if (evsel && evsel->handler) { |
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inject_handler f = evsel->handler; |
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return f(tool, event, sample, evsel, machine); |
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} |
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build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
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if (inject->itrace_synth_opts.set && sample->aux_sample.size) |
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event = perf_inject__cut_auxtrace_sample(inject, event, sample); |
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return perf_event__repipe_synth(tool, event); |
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} |
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static int perf_event__repipe_mmap(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err; |
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err = perf_event__process_mmap(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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#ifdef HAVE_JITDUMP |
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static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
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u64 n = 0; |
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int ret; |
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/* |
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* if jit marker, then inject jit mmaps and generate ELF images |
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*/ |
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ret = jit_process(inject->session, &inject->output, machine, |
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event->mmap.filename, event->mmap.pid, event->mmap.tid, &n); |
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if (ret < 0) |
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return ret; |
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if (ret) { |
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inject->bytes_written += n; |
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return 0; |
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} |
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return perf_event__repipe_mmap(tool, event, sample, machine); |
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} |
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#endif |
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static struct dso *findnew_dso(int pid, int tid, const char *filename, |
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struct dso_id *id, struct machine *machine) |
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{ |
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struct thread *thread; |
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struct nsinfo *nsi = NULL; |
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struct nsinfo *nnsi; |
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struct dso *dso; |
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bool vdso; |
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thread = machine__findnew_thread(machine, pid, tid); |
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if (thread == NULL) { |
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pr_err("cannot find or create a task %d/%d.\n", tid, pid); |
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return NULL; |
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} |
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vdso = is_vdso_map(filename); |
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nsi = nsinfo__get(thread->nsinfo); |
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if (vdso) { |
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/* The vdso maps are always on the host and not the |
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* container. Ensure that we don't use setns to look |
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* them up. |
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*/ |
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nnsi = nsinfo__copy(nsi); |
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if (nnsi) { |
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nsinfo__put(nsi); |
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nnsi->need_setns = false; |
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nsi = nnsi; |
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} |
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dso = machine__findnew_vdso(machine, thread); |
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} else { |
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dso = machine__findnew_dso_id(machine, filename, id); |
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} |
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if (dso) |
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dso->nsinfo = nsi; |
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else |
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nsinfo__put(nsi); |
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thread__put(thread); |
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return dso; |
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} |
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static int perf_event__repipe_buildid_mmap(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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struct dso *dso; |
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dso = findnew_dso(event->mmap.pid, event->mmap.tid, |
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event->mmap.filename, NULL, machine); |
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if (dso && !dso->hit) { |
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dso->hit = 1; |
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dso__inject_build_id(dso, tool, machine, sample->cpumode, 0); |
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dso__put(dso); |
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} |
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return perf_event__repipe(tool, event, sample, machine); |
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} |
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static int perf_event__repipe_mmap2(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err; |
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err = perf_event__process_mmap2(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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#ifdef HAVE_JITDUMP |
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static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
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u64 n = 0; |
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int ret; |
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|
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/* |
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* if jit marker, then inject jit mmaps and generate ELF images |
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*/ |
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ret = jit_process(inject->session, &inject->output, machine, |
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event->mmap2.filename, event->mmap2.pid, event->mmap2.tid, &n); |
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if (ret < 0) |
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return ret; |
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if (ret) { |
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inject->bytes_written += n; |
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return 0; |
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} |
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return perf_event__repipe_mmap2(tool, event, sample, machine); |
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} |
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#endif |
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static int perf_event__repipe_buildid_mmap2(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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struct dso_id dso_id = { |
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.maj = event->mmap2.maj, |
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.min = event->mmap2.min, |
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.ino = event->mmap2.ino, |
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.ino_generation = event->mmap2.ino_generation, |
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}; |
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struct dso *dso; |
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dso = findnew_dso(event->mmap2.pid, event->mmap2.tid, |
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event->mmap2.filename, &dso_id, machine); |
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if (dso && !dso->hit) { |
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dso->hit = 1; |
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dso__inject_build_id(dso, tool, machine, sample->cpumode, |
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event->mmap2.flags); |
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dso__put(dso); |
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} |
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perf_event__repipe(tool, event, sample, machine); |
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return 0; |
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} |
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static int perf_event__repipe_fork(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err; |
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err = perf_event__process_fork(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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static int perf_event__repipe_comm(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err; |
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err = perf_event__process_comm(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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static int perf_event__repipe_namespaces(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err = perf_event__process_namespaces(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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static int perf_event__repipe_exit(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct machine *machine) |
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{ |
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int err; |
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err = perf_event__process_exit(tool, event, sample, machine); |
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perf_event__repipe(tool, event, sample, machine); |
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return err; |
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} |
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static int perf_event__repipe_tracing_data(struct perf_session *session, |
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union perf_event *event) |
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{ |
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int err; |
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perf_event__repipe_synth(session->tool, event); |
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err = perf_event__process_tracing_data(session, event); |
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return err; |
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} |
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static int dso__read_build_id(struct dso *dso) |
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{ |
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struct nscookie nsc; |
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if (dso->has_build_id) |
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return 0; |
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nsinfo__mountns_enter(dso->nsinfo, &nsc); |
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if (filename__read_build_id(dso->long_name, &dso->bid) > 0) |
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dso->has_build_id = true; |
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nsinfo__mountns_exit(&nsc); |
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return dso->has_build_id ? 0 : -1; |
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} |
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static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
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struct machine *machine, u8 cpumode, u32 flags) |
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{ |
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int err; |
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if (is_anon_memory(dso->long_name) || flags & MAP_HUGETLB) |
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return 0; |
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if (is_no_dso_memory(dso->long_name)) |
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return 0; |
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if (dso__read_build_id(dso) < 0) { |
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pr_debug("no build_id found for %s\n", dso->long_name); |
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return -1; |
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} |
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err = perf_event__synthesize_build_id(tool, dso, cpumode, |
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perf_event__repipe, machine); |
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if (err) { |
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pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
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return -1; |
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} |
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return 0; |
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} |
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int perf_event__inject_buildid(struct perf_tool *tool, union perf_event *event, |
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struct perf_sample *sample, |
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struct evsel *evsel __maybe_unused, |
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struct machine *machine) |
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{ |
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struct addr_location al; |
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struct thread *thread; |
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thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
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if (thread == NULL) { |
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pr_err("problem processing %d event, skipping it.\n", |
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event->header.type); |
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goto repipe; |
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} |
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if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) { |
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if (!al.map->dso->hit) { |
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al.map->dso->hit = 1; |
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dso__inject_build_id(al.map->dso, tool, machine, |
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sample->cpumode, al.map->flags); |
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} |
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} |
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thread__put(thread); |
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repipe: |
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perf_event__repipe(tool, event, sample, machine); |
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return 0; |
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} |
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static int perf_inject__sched_process_exit(struct perf_tool *tool, |
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union perf_event *event __maybe_unused, |
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struct perf_sample *sample, |
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struct evsel *evsel __maybe_unused, |
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struct machine *machine __maybe_unused) |
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{ |
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struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
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struct event_entry *ent; |
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list_for_each_entry(ent, &inject->samples, node) { |
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if (sample->tid == ent->tid) { |
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list_del_init(&ent->node); |
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free(ent); |
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break; |
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} |
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} |
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return 0; |
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} |
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static int perf_inject__sched_switch(struct perf_tool *tool, |
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union perf_event *event, |
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struct perf_sample *sample, |
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struct evsel *evsel, |
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struct machine *machine) |
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{ |
|
struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
|
struct event_entry *ent; |
|
|
|
perf_inject__sched_process_exit(tool, event, sample, evsel, machine); |
|
|
|
ent = malloc(event->header.size + sizeof(struct event_entry)); |
|
if (ent == NULL) { |
|
color_fprintf(stderr, PERF_COLOR_RED, |
|
"Not enough memory to process sched switch event!"); |
|
return -1; |
|
} |
|
|
|
ent->tid = sample->tid; |
|
memcpy(&ent->event, event, event->header.size); |
|
list_add(&ent->node, &inject->samples); |
|
return 0; |
|
} |
|
|
|
static int perf_inject__sched_stat(struct perf_tool *tool, |
|
union perf_event *event __maybe_unused, |
|
struct perf_sample *sample, |
|
struct evsel *evsel, |
|
struct machine *machine) |
|
{ |
|
struct event_entry *ent; |
|
union perf_event *event_sw; |
|
struct perf_sample sample_sw; |
|
struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
|
u32 pid = evsel__intval(evsel, sample, "pid"); |
|
|
|
list_for_each_entry(ent, &inject->samples, node) { |
|
if (pid == ent->tid) |
|
goto found; |
|
} |
|
|
|
return 0; |
|
found: |
|
event_sw = &ent->event[0]; |
|
evsel__parse_sample(evsel, event_sw, &sample_sw); |
|
|
|
sample_sw.period = sample->period; |
|
sample_sw.time = sample->time; |
|
perf_event__synthesize_sample(event_sw, evsel->core.attr.sample_type, |
|
evsel->core.attr.read_format, &sample_sw); |
|
build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
|
return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
|
} |
|
|
|
static void sig_handler(int sig __maybe_unused) |
|
{ |
|
session_done = 1; |
|
} |
|
|
|
static int evsel__check_stype(struct evsel *evsel, u64 sample_type, const char *sample_msg) |
|
{ |
|
struct perf_event_attr *attr = &evsel->core.attr; |
|
const char *name = evsel__name(evsel); |
|
|
|
if (!(attr->sample_type & sample_type)) { |
|
pr_err("Samples for %s event do not have %s attribute set.", |
|
name, sample_msg); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int drop_sample(struct perf_tool *tool __maybe_unused, |
|
union perf_event *event __maybe_unused, |
|
struct perf_sample *sample __maybe_unused, |
|
struct evsel *evsel __maybe_unused, |
|
struct machine *machine __maybe_unused) |
|
{ |
|
return 0; |
|
} |
|
|
|
static void strip_init(struct perf_inject *inject) |
|
{ |
|
struct evlist *evlist = inject->session->evlist; |
|
struct evsel *evsel; |
|
|
|
inject->tool.context_switch = perf_event__drop; |
|
|
|
evlist__for_each_entry(evlist, evsel) |
|
evsel->handler = drop_sample; |
|
} |
|
|
|
static int __cmd_inject(struct perf_inject *inject) |
|
{ |
|
int ret = -EINVAL; |
|
struct perf_session *session = inject->session; |
|
struct perf_data *data_out = &inject->output; |
|
int fd = perf_data__fd(data_out); |
|
u64 output_data_offset; |
|
|
|
signal(SIGINT, sig_handler); |
|
|
|
if (inject->build_ids || inject->sched_stat || |
|
inject->itrace_synth_opts.set || inject->build_id_all) { |
|
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_id_all) { |
|
inject->tool.mmap = perf_event__repipe_buildid_mmap; |
|
inject->tool.mmap2 = perf_event__repipe_buildid_mmap2; |
|
} else if (inject->build_ids) { |
|
inject->tool.sample = perf_event__inject_buildid; |
|
} else if (inject->sched_stat) { |
|
struct evsel *evsel; |
|
|
|
evlist__for_each_entry(session->evlist, evsel) { |
|
const char *name = evsel__name(evsel); |
|
|
|
if (!strcmp(name, "sched:sched_switch")) { |
|
if (evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) |
|
return -EINVAL; |
|
|
|
evsel->handler = perf_inject__sched_switch; |
|
} else if (!strcmp(name, "sched:sched_process_exit")) |
|
evsel->handler = perf_inject__sched_process_exit; |
|
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.namespaces = perf_event__repipe_namespaces; |
|
inject->tool.exit = perf_event__repipe_exit; |
|
inject->tool.id_index = perf_event__process_id_index; |
|
inject->tool.auxtrace_info = perf_event__process_auxtrace_info; |
|
inject->tool.auxtrace = perf_event__process_auxtrace; |
|
inject->tool.aux = perf_event__drop_aux; |
|
inject->tool.itrace_start = perf_event__drop_aux, |
|
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->strip) |
|
strip_init(inject); |
|
} |
|
|
|
if (!inject->itrace_synth_opts.set) |
|
auxtrace_index__free(&session->auxtrace_index); |
|
|
|
if (!data_out->is_pipe) |
|
lseek(fd, output_data_offset, SEEK_SET); |
|
|
|
ret = perf_session__process_events(session); |
|
if (ret) |
|
return ret; |
|
|
|
if (!data_out->is_pipe) { |
|
if (inject->build_ids) |
|
perf_header__set_feat(&session->header, |
|
HEADER_BUILD_ID); |
|
/* |
|
* Keep all buildids when there is unprocessed AUX data because |
|
* it is not known which ones the AUX trace hits. |
|
*/ |
|
if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && |
|
inject->have_auxtrace && !inject->itrace_synth_opts.set) |
|
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); |
|
if (inject->itrace_synth_opts.last_branch || |
|
inject->itrace_synth_opts.add_last_branch) |
|
perf_header__set_feat(&session->header, |
|
HEADER_BRANCH_STACK); |
|
} |
|
session->header.data_offset = output_data_offset; |
|
session->header.data_size = inject->bytes_written; |
|
perf_session__write_header(session, session->evlist, fd, true); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
int cmd_inject(int argc, const char **argv) |
|
{ |
|
struct perf_inject inject = { |
|
.tool = { |
|
.sample = perf_event__repipe_sample, |
|
.read = perf_event__repipe_sample, |
|
.mmap = perf_event__repipe, |
|
.mmap2 = perf_event__repipe, |
|
.comm = perf_event__repipe, |
|
.namespaces = perf_event__repipe, |
|
.cgroup = perf_event__repipe, |
|
.fork = perf_event__repipe, |
|
.exit = perf_event__repipe, |
|
.lost = perf_event__repipe, |
|
.lost_samples = perf_event__repipe, |
|
.aux = perf_event__repipe, |
|
.itrace_start = perf_event__repipe, |
|
.context_switch = perf_event__repipe, |
|
.throttle = perf_event__repipe, |
|
.unthrottle = perf_event__repipe, |
|
.ksymbol = perf_event__repipe, |
|
.bpf = perf_event__repipe, |
|
.text_poke = perf_event__repipe, |
|
.attr = perf_event__repipe_attr, |
|
.event_update = perf_event__repipe_event_update, |
|
.tracing_data = 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, |
|
.auxtrace_info = perf_event__repipe_op2_synth, |
|
.auxtrace_error = perf_event__repipe_op2_synth, |
|
.time_conv = perf_event__repipe_op2_synth, |
|
.thread_map = perf_event__repipe_op2_synth, |
|
.cpu_map = perf_event__repipe_op2_synth, |
|
.stat_config = perf_event__repipe_op2_synth, |
|
.stat = perf_event__repipe_op2_synth, |
|
.stat_round = perf_event__repipe_op2_synth, |
|
.feature = perf_event__repipe_op2_synth, |
|
.compressed = perf_event__repipe_op4_synth, |
|
.auxtrace = perf_event__repipe_auxtrace, |
|
}, |
|
.input_name = "-", |
|
.samples = LIST_HEAD_INIT(inject.samples), |
|
.output = { |
|
.path = "-", |
|
.mode = PERF_DATA_MODE_WRITE, |
|
.use_stdio = true, |
|
}, |
|
}; |
|
struct perf_data data = { |
|
.mode = PERF_DATA_MODE_READ, |
|
.use_stdio = true, |
|
}; |
|
int ret; |
|
|
|
struct option options[] = { |
|
OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
|
"Inject build-ids into the output stream"), |
|
OPT_BOOLEAN(0, "buildid-all", &inject.build_id_all, |
|
"Inject build-ids of all DSOs into the output stream"), |
|
OPT_STRING('i', "input", &inject.input_name, "file", |
|
"input file name"), |
|
OPT_STRING('o', "output", &inject.output.path, "file", |
|
"output file name"), |
|
OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
|
"Merge sched-stat and sched-switch for getting events " |
|
"where and how long tasks slept"), |
|
#ifdef HAVE_JITDUMP |
|
OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
|
#endif |
|
OPT_INCR('v', "verbose", &verbose, |
|
"be more verbose (show build ids, etc)"), |
|
OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
|
"kallsyms pathname"), |
|
OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"), |
|
OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
|
NULL, "opts", "Instruction Tracing options\n" |
|
ITRACE_HELP, |
|
itrace_parse_synth_opts), |
|
OPT_BOOLEAN(0, "strip", &inject.strip, |
|
"strip non-synthesized events (use with --itrace)"), |
|
OPT_END() |
|
}; |
|
const char * const inject_usage[] = { |
|
"perf inject [<options>]", |
|
NULL |
|
}; |
|
#ifndef HAVE_JITDUMP |
|
set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
|
#endif |
|
argc = parse_options(argc, argv, options, inject_usage, 0); |
|
|
|
/* |
|
* Any (unrecognized) arguments left? |
|
*/ |
|
if (argc) |
|
usage_with_options(inject_usage, options); |
|
|
|
if (inject.strip && !inject.itrace_synth_opts.set) { |
|
pr_err("--strip option requires --itrace option\n"); |
|
return -1; |
|
} |
|
|
|
if (perf_data__open(&inject.output)) { |
|
perror("failed to create output file"); |
|
return -1; |
|
} |
|
|
|
data.path = inject.input_name; |
|
inject.session = perf_session__new(&data, inject.output.is_pipe, &inject.tool); |
|
if (IS_ERR(inject.session)) |
|
return PTR_ERR(inject.session); |
|
|
|
if (zstd_init(&(inject.session->zstd_data), 0) < 0) |
|
pr_warning("Decompression initialization failed.\n"); |
|
|
|
if (inject.build_ids && !inject.build_id_all) { |
|
/* |
|
* to make sure the mmap records are ordered correctly |
|
* and so that the correct especially due to jitted code |
|
* mmaps. We cannot generate the buildid hit list and |
|
* inject the jit mmaps at the same time for now. |
|
*/ |
|
inject.tool.ordered_events = true; |
|
inject.tool.ordering_requires_timestamps = true; |
|
} |
|
|
|
if (inject.sched_stat) { |
|
inject.tool.ordered_events = true; |
|
} |
|
|
|
#ifdef HAVE_JITDUMP |
|
if (inject.jit_mode) { |
|
inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
|
inject.tool.mmap = perf_event__jit_repipe_mmap; |
|
inject.tool.ordered_events = true; |
|
inject.tool.ordering_requires_timestamps = true; |
|
/* |
|
* JIT MMAP injection injects all MMAP events in one go, so it |
|
* does not obey finished_round semantics. |
|
*/ |
|
inject.tool.finished_round = perf_event__drop_oe; |
|
} |
|
#endif |
|
ret = symbol__init(&inject.session->header.env); |
|
if (ret < 0) |
|
goto out_delete; |
|
|
|
ret = __cmd_inject(&inject); |
|
|
|
out_delete: |
|
zstd_fini(&(inject.session->zstd_data)); |
|
perf_session__delete(inject.session); |
|
return ret; |
|
}
|
|
|