![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
To support multiple events we need to do these calcs per 'struct hists' instance, and it turns out we already do that at: __hists__add_entry hists__inc_nr_entries hists__calc_col_len for all the unfiltered hist_entry instances we stash in the rb tree, so trow away the dead code. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
794 lines
21 KiB
C
794 lines
21 KiB
C
#include <linux/types.h>
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#include "event.h"
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#include "debug.h"
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#include "session.h"
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#include "sort.h"
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#include "string.h"
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#include "strlist.h"
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#include "thread.h"
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#include "thread_map.h"
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static const char *perf_event__names[] = {
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[0] = "TOTAL",
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[PERF_RECORD_MMAP] = "MMAP",
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[PERF_RECORD_LOST] = "LOST",
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[PERF_RECORD_COMM] = "COMM",
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[PERF_RECORD_EXIT] = "EXIT",
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[PERF_RECORD_THROTTLE] = "THROTTLE",
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[PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
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[PERF_RECORD_FORK] = "FORK",
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[PERF_RECORD_READ] = "READ",
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[PERF_RECORD_SAMPLE] = "SAMPLE",
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[PERF_RECORD_HEADER_ATTR] = "ATTR",
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[PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
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[PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
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[PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
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[PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
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};
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const char *perf_event__name(unsigned int id)
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{
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if (id >= ARRAY_SIZE(perf_event__names))
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return "INVALID";
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if (!perf_event__names[id])
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return "UNKNOWN";
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return perf_event__names[id];
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}
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static struct perf_sample synth_sample = {
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.pid = -1,
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.tid = -1,
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.time = -1,
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.stream_id = -1,
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.cpu = -1,
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.period = 1,
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};
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static pid_t perf_event__synthesize_comm(union perf_event *event, pid_t pid,
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int full, perf_event__handler_t process,
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struct perf_session *session)
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{
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char filename[PATH_MAX];
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char bf[BUFSIZ];
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FILE *fp;
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size_t size = 0;
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DIR *tasks;
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struct dirent dirent, *next;
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pid_t tgid = 0;
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snprintf(filename, sizeof(filename), "/proc/%d/status", pid);
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fp = fopen(filename, "r");
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if (fp == NULL) {
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out_race:
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/*
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* We raced with a task exiting - just return:
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*/
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pr_debug("couldn't open %s\n", filename);
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return 0;
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}
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memset(&event->comm, 0, sizeof(event->comm));
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while (!event->comm.comm[0] || !event->comm.pid) {
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if (fgets(bf, sizeof(bf), fp) == NULL) {
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pr_warning("couldn't get COMM and pgid, malformed %s\n", filename);
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goto out;
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}
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if (memcmp(bf, "Name:", 5) == 0) {
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char *name = bf + 5;
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while (*name && isspace(*name))
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++name;
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size = strlen(name) - 1;
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memcpy(event->comm.comm, name, size++);
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} else if (memcmp(bf, "Tgid:", 5) == 0) {
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char *tgids = bf + 5;
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while (*tgids && isspace(*tgids))
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++tgids;
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tgid = event->comm.pid = atoi(tgids);
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}
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}
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event->comm.header.type = PERF_RECORD_COMM;
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size = ALIGN(size, sizeof(u64));
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memset(event->comm.comm + size, 0, session->id_hdr_size);
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event->comm.header.size = (sizeof(event->comm) -
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(sizeof(event->comm.comm) - size) +
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session->id_hdr_size);
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if (!full) {
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event->comm.tid = pid;
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process(event, &synth_sample, session);
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goto out;
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}
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snprintf(filename, sizeof(filename), "/proc/%d/task", pid);
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tasks = opendir(filename);
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if (tasks == NULL)
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goto out_race;
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while (!readdir_r(tasks, &dirent, &next) && next) {
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char *end;
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pid = strtol(dirent.d_name, &end, 10);
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if (*end)
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continue;
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event->comm.tid = pid;
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process(event, &synth_sample, session);
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}
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closedir(tasks);
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out:
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fclose(fp);
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return tgid;
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}
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static int perf_event__synthesize_mmap_events(union perf_event *event,
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pid_t pid, pid_t tgid,
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perf_event__handler_t process,
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struct perf_session *session)
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{
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char filename[PATH_MAX];
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FILE *fp;
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snprintf(filename, sizeof(filename), "/proc/%d/maps", pid);
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fp = fopen(filename, "r");
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if (fp == NULL) {
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/*
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* We raced with a task exiting - just return:
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*/
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pr_debug("couldn't open %s\n", filename);
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return -1;
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}
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event->header.type = PERF_RECORD_MMAP;
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/*
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* Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
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*/
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event->header.misc = PERF_RECORD_MISC_USER;
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while (1) {
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char bf[BUFSIZ], *pbf = bf;
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int n;
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size_t size;
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if (fgets(bf, sizeof(bf), fp) == NULL)
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break;
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/* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */
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n = hex2u64(pbf, &event->mmap.start);
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if (n < 0)
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continue;
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pbf += n + 1;
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n = hex2u64(pbf, &event->mmap.len);
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if (n < 0)
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continue;
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pbf += n + 3;
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if (*pbf == 'x') { /* vm_exec */
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char *execname = strchr(bf, '/');
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/* Catch VDSO */
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if (execname == NULL)
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execname = strstr(bf, "[vdso]");
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if (execname == NULL)
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continue;
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pbf += 3;
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n = hex2u64(pbf, &event->mmap.pgoff);
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size = strlen(execname);
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execname[size - 1] = '\0'; /* Remove \n */
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memcpy(event->mmap.filename, execname, size);
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size = ALIGN(size, sizeof(u64));
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event->mmap.len -= event->mmap.start;
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event->mmap.header.size = (sizeof(event->mmap) -
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(sizeof(event->mmap.filename) - size));
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memset(event->mmap.filename + size, 0, session->id_hdr_size);
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event->mmap.header.size += session->id_hdr_size;
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event->mmap.pid = tgid;
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event->mmap.tid = pid;
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process(event, &synth_sample, session);
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}
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}
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fclose(fp);
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return 0;
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}
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int perf_event__synthesize_modules(perf_event__handler_t process,
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struct perf_session *session,
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struct machine *machine)
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{
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struct rb_node *nd;
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struct map_groups *kmaps = &machine->kmaps;
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union perf_event *event = zalloc((sizeof(event->mmap) +
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session->id_hdr_size));
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if (event == NULL) {
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pr_debug("Not enough memory synthesizing mmap event "
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"for kernel modules\n");
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return -1;
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}
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event->header.type = PERF_RECORD_MMAP;
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/*
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* kernel uses 0 for user space maps, see kernel/perf_event.c
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* __perf_event_mmap
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*/
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if (machine__is_host(machine))
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event->header.misc = PERF_RECORD_MISC_KERNEL;
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else
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event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL;
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for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]);
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nd; nd = rb_next(nd)) {
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size_t size;
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struct map *pos = rb_entry(nd, struct map, rb_node);
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if (pos->dso->kernel)
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continue;
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size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64));
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event->mmap.header.type = PERF_RECORD_MMAP;
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event->mmap.header.size = (sizeof(event->mmap) -
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(sizeof(event->mmap.filename) - size));
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memset(event->mmap.filename + size, 0, session->id_hdr_size);
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event->mmap.header.size += session->id_hdr_size;
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event->mmap.start = pos->start;
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event->mmap.len = pos->end - pos->start;
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event->mmap.pid = machine->pid;
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memcpy(event->mmap.filename, pos->dso->long_name,
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pos->dso->long_name_len + 1);
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process(event, &synth_sample, session);
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}
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free(event);
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return 0;
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}
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static int __event__synthesize_thread(union perf_event *comm_event,
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union perf_event *mmap_event,
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pid_t pid, perf_event__handler_t process,
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struct perf_session *session)
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{
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pid_t tgid = perf_event__synthesize_comm(comm_event, pid, 1, process,
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session);
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if (tgid == -1)
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return -1;
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return perf_event__synthesize_mmap_events(mmap_event, pid, tgid,
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process, session);
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}
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int perf_event__synthesize_thread_map(struct thread_map *threads,
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perf_event__handler_t process,
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struct perf_session *session)
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{
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union perf_event *comm_event, *mmap_event;
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int err = -1, thread;
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comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size);
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if (comm_event == NULL)
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goto out;
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mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size);
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if (mmap_event == NULL)
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goto out_free_comm;
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err = 0;
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for (thread = 0; thread < threads->nr; ++thread) {
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if (__event__synthesize_thread(comm_event, mmap_event,
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threads->map[thread],
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process, session)) {
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err = -1;
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break;
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}
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}
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free(mmap_event);
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out_free_comm:
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free(comm_event);
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out:
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return err;
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}
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int perf_event__synthesize_threads(perf_event__handler_t process,
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struct perf_session *session)
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{
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DIR *proc;
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struct dirent dirent, *next;
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union perf_event *comm_event, *mmap_event;
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int err = -1;
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comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size);
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if (comm_event == NULL)
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goto out;
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mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size);
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if (mmap_event == NULL)
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goto out_free_comm;
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proc = opendir("/proc");
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if (proc == NULL)
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goto out_free_mmap;
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while (!readdir_r(proc, &dirent, &next) && next) {
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char *end;
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pid_t pid = strtol(dirent.d_name, &end, 10);
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if (*end) /* only interested in proper numerical dirents */
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continue;
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__event__synthesize_thread(comm_event, mmap_event, pid,
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process, session);
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}
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closedir(proc);
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err = 0;
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out_free_mmap:
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free(mmap_event);
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out_free_comm:
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free(comm_event);
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out:
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return err;
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}
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struct process_symbol_args {
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const char *name;
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u64 start;
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};
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static int find_symbol_cb(void *arg, const char *name, char type,
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u64 start, u64 end __used)
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{
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struct process_symbol_args *args = arg;
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/*
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* Must be a function or at least an alias, as in PARISC64, where "_text" is
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* an 'A' to the same address as "_stext".
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*/
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if (!(symbol_type__is_a(type, MAP__FUNCTION) ||
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type == 'A') || strcmp(name, args->name))
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return 0;
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args->start = start;
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return 1;
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}
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int perf_event__synthesize_kernel_mmap(perf_event__handler_t process,
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struct perf_session *session,
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struct machine *machine,
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const char *symbol_name)
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{
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size_t size;
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const char *filename, *mmap_name;
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char path[PATH_MAX];
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char name_buff[PATH_MAX];
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struct map *map;
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int err;
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/*
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* We should get this from /sys/kernel/sections/.text, but till that is
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* available use this, and after it is use this as a fallback for older
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* kernels.
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*/
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struct process_symbol_args args = { .name = symbol_name, };
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union perf_event *event = zalloc((sizeof(event->mmap) +
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session->id_hdr_size));
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if (event == NULL) {
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pr_debug("Not enough memory synthesizing mmap event "
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"for kernel modules\n");
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return -1;
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}
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mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff));
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if (machine__is_host(machine)) {
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/*
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* kernel uses PERF_RECORD_MISC_USER for user space maps,
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* see kernel/perf_event.c __perf_event_mmap
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*/
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event->header.misc = PERF_RECORD_MISC_KERNEL;
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filename = "/proc/kallsyms";
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} else {
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event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL;
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if (machine__is_default_guest(machine))
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filename = (char *) symbol_conf.default_guest_kallsyms;
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else {
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sprintf(path, "%s/proc/kallsyms", machine->root_dir);
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filename = path;
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}
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}
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if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0)
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return -ENOENT;
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map = machine->vmlinux_maps[MAP__FUNCTION];
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size = snprintf(event->mmap.filename, sizeof(event->mmap.filename),
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"%s%s", mmap_name, symbol_name) + 1;
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size = ALIGN(size, sizeof(u64));
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event->mmap.header.type = PERF_RECORD_MMAP;
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event->mmap.header.size = (sizeof(event->mmap) -
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(sizeof(event->mmap.filename) - size) + session->id_hdr_size);
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event->mmap.pgoff = args.start;
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event->mmap.start = map->start;
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event->mmap.len = map->end - event->mmap.start;
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event->mmap.pid = machine->pid;
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err = process(event, &synth_sample, session);
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free(event);
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return err;
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}
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int perf_event__process_comm(union perf_event *event,
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struct perf_sample *sample __used,
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struct perf_session *session)
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{
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struct thread *thread = perf_session__findnew(session, event->comm.tid);
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dump_printf(": %s:%d\n", event->comm.comm, event->comm.tid);
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if (thread == NULL || thread__set_comm(thread, event->comm.comm)) {
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dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
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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__process_lost(union perf_event *event,
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struct perf_sample *sample __used,
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struct perf_session *session)
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{
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dump_printf(": id:%" PRIu64 ": lost:%" PRIu64 "\n",
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event->lost.id, event->lost.lost);
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session->hists.stats.total_lost += event->lost.lost;
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return 0;
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}
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static void perf_event__set_kernel_mmap_len(union perf_event *event,
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struct map **maps)
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{
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maps[MAP__FUNCTION]->start = event->mmap.start;
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maps[MAP__FUNCTION]->end = event->mmap.start + event->mmap.len;
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/*
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* Be a bit paranoid here, some perf.data file came with
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* a zero sized synthesized MMAP event for the kernel.
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*/
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if (maps[MAP__FUNCTION]->end == 0)
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maps[MAP__FUNCTION]->end = ~0ULL;
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}
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static int perf_event__process_kernel_mmap(union perf_event *event,
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struct perf_session *session)
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{
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struct map *map;
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char kmmap_prefix[PATH_MAX];
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struct machine *machine;
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enum dso_kernel_type kernel_type;
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bool is_kernel_mmap;
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machine = perf_session__findnew_machine(session, event->mmap.pid);
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if (!machine) {
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pr_err("Can't find id %d's machine\n", event->mmap.pid);
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goto out_problem;
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}
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machine__mmap_name(machine, kmmap_prefix, sizeof(kmmap_prefix));
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if (machine__is_host(machine))
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kernel_type = DSO_TYPE_KERNEL;
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else
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kernel_type = DSO_TYPE_GUEST_KERNEL;
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is_kernel_mmap = memcmp(event->mmap.filename,
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kmmap_prefix,
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strlen(kmmap_prefix)) == 0;
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if (event->mmap.filename[0] == '/' ||
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(!is_kernel_mmap && event->mmap.filename[0] == '[')) {
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char short_module_name[1024];
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char *name, *dot;
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if (event->mmap.filename[0] == '/') {
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name = strrchr(event->mmap.filename, '/');
|
|
if (name == NULL)
|
|
goto out_problem;
|
|
|
|
++name; /* skip / */
|
|
dot = strrchr(name, '.');
|
|
if (dot == NULL)
|
|
goto out_problem;
|
|
snprintf(short_module_name, sizeof(short_module_name),
|
|
"[%.*s]", (int)(dot - name), name);
|
|
strxfrchar(short_module_name, '-', '_');
|
|
} else
|
|
strcpy(short_module_name, event->mmap.filename);
|
|
|
|
map = machine__new_module(machine, event->mmap.start,
|
|
event->mmap.filename);
|
|
if (map == NULL)
|
|
goto out_problem;
|
|
|
|
name = strdup(short_module_name);
|
|
if (name == NULL)
|
|
goto out_problem;
|
|
|
|
map->dso->short_name = name;
|
|
map->dso->sname_alloc = 1;
|
|
map->end = map->start + event->mmap.len;
|
|
} else if (is_kernel_mmap) {
|
|
const char *symbol_name = (event->mmap.filename +
|
|
strlen(kmmap_prefix));
|
|
/*
|
|
* Should be there already, from the build-id table in
|
|
* the header.
|
|
*/
|
|
struct dso *kernel = __dsos__findnew(&machine->kernel_dsos,
|
|
kmmap_prefix);
|
|
if (kernel == NULL)
|
|
goto out_problem;
|
|
|
|
kernel->kernel = kernel_type;
|
|
if (__machine__create_kernel_maps(machine, kernel) < 0)
|
|
goto out_problem;
|
|
|
|
perf_event__set_kernel_mmap_len(event, machine->vmlinux_maps);
|
|
perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps,
|
|
symbol_name,
|
|
event->mmap.pgoff);
|
|
if (machine__is_default_guest(machine)) {
|
|
/*
|
|
* preload dso of guest kernel and modules
|
|
*/
|
|
dso__load(kernel, machine->vmlinux_maps[MAP__FUNCTION],
|
|
NULL);
|
|
}
|
|
}
|
|
return 0;
|
|
out_problem:
|
|
return -1;
|
|
}
|
|
|
|
int perf_event__process_mmap(union perf_event *event,
|
|
struct perf_sample *sample __used,
|
|
struct perf_session *session)
|
|
{
|
|
struct machine *machine;
|
|
struct thread *thread;
|
|
struct map *map;
|
|
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
|
|
int ret = 0;
|
|
|
|
dump_printf(" %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n",
|
|
event->mmap.pid, event->mmap.tid, event->mmap.start,
|
|
event->mmap.len, event->mmap.pgoff, event->mmap.filename);
|
|
|
|
if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
|
|
cpumode == PERF_RECORD_MISC_KERNEL) {
|
|
ret = perf_event__process_kernel_mmap(event, session);
|
|
if (ret < 0)
|
|
goto out_problem;
|
|
return 0;
|
|
}
|
|
|
|
machine = perf_session__find_host_machine(session);
|
|
if (machine == NULL)
|
|
goto out_problem;
|
|
thread = perf_session__findnew(session, event->mmap.pid);
|
|
if (thread == NULL)
|
|
goto out_problem;
|
|
map = map__new(&machine->user_dsos, event->mmap.start,
|
|
event->mmap.len, event->mmap.pgoff,
|
|
event->mmap.pid, event->mmap.filename,
|
|
MAP__FUNCTION);
|
|
if (map == NULL)
|
|
goto out_problem;
|
|
|
|
thread__insert_map(thread, map);
|
|
return 0;
|
|
|
|
out_problem:
|
|
dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
|
|
return 0;
|
|
}
|
|
|
|
int perf_event__process_task(union perf_event *event,
|
|
struct perf_sample *sample __used,
|
|
struct perf_session *session)
|
|
{
|
|
struct thread *thread = perf_session__findnew(session, event->fork.tid);
|
|
struct thread *parent = perf_session__findnew(session, event->fork.ptid);
|
|
|
|
dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
|
|
event->fork.ppid, event->fork.ptid);
|
|
|
|
if (event->header.type == PERF_RECORD_EXIT) {
|
|
perf_session__remove_thread(session, thread);
|
|
return 0;
|
|
}
|
|
|
|
if (thread == NULL || parent == NULL ||
|
|
thread__fork(thread, parent) < 0) {
|
|
dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int perf_event__process(union perf_event *event, struct perf_sample *sample,
|
|
struct perf_session *session)
|
|
{
|
|
switch (event->header.type) {
|
|
case PERF_RECORD_COMM:
|
|
perf_event__process_comm(event, sample, session);
|
|
break;
|
|
case PERF_RECORD_MMAP:
|
|
perf_event__process_mmap(event, sample, session);
|
|
break;
|
|
case PERF_RECORD_FORK:
|
|
case PERF_RECORD_EXIT:
|
|
perf_event__process_task(event, sample, session);
|
|
break;
|
|
case PERF_RECORD_LOST:
|
|
perf_event__process_lost(event, sample, session);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void thread__find_addr_map(struct thread *self,
|
|
struct perf_session *session, u8 cpumode,
|
|
enum map_type type, pid_t pid, u64 addr,
|
|
struct addr_location *al)
|
|
{
|
|
struct map_groups *mg = &self->mg;
|
|
struct machine *machine = NULL;
|
|
|
|
al->thread = self;
|
|
al->addr = addr;
|
|
al->cpumode = cpumode;
|
|
al->filtered = false;
|
|
|
|
if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
|
|
al->level = 'k';
|
|
machine = perf_session__find_host_machine(session);
|
|
if (machine == NULL) {
|
|
al->map = NULL;
|
|
return;
|
|
}
|
|
mg = &machine->kmaps;
|
|
} else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
|
|
al->level = '.';
|
|
machine = perf_session__find_host_machine(session);
|
|
} else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
|
|
al->level = 'g';
|
|
machine = perf_session__find_machine(session, pid);
|
|
if (machine == NULL) {
|
|
al->map = NULL;
|
|
return;
|
|
}
|
|
mg = &machine->kmaps;
|
|
} else {
|
|
/*
|
|
* 'u' means guest os user space.
|
|
* TODO: We don't support guest user space. Might support late.
|
|
*/
|
|
if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest)
|
|
al->level = 'u';
|
|
else
|
|
al->level = 'H';
|
|
al->map = NULL;
|
|
|
|
if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
|
|
cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
|
|
!perf_guest)
|
|
al->filtered = true;
|
|
if ((cpumode == PERF_RECORD_MISC_USER ||
|
|
cpumode == PERF_RECORD_MISC_KERNEL) &&
|
|
!perf_host)
|
|
al->filtered = true;
|
|
|
|
return;
|
|
}
|
|
try_again:
|
|
al->map = map_groups__find(mg, type, al->addr);
|
|
if (al->map == NULL) {
|
|
/*
|
|
* If this is outside of all known maps, and is a negative
|
|
* address, try to look it up in the kernel dso, as it might be
|
|
* a vsyscall or vdso (which executes in user-mode).
|
|
*
|
|
* XXX This is nasty, we should have a symbol list in the
|
|
* "[vdso]" dso, but for now lets use the old trick of looking
|
|
* in the whole kernel symbol list.
|
|
*/
|
|
if ((long long)al->addr < 0 &&
|
|
cpumode == PERF_RECORD_MISC_KERNEL &&
|
|
machine && mg != &machine->kmaps) {
|
|
mg = &machine->kmaps;
|
|
goto try_again;
|
|
}
|
|
} else
|
|
al->addr = al->map->map_ip(al->map, al->addr);
|
|
}
|
|
|
|
void thread__find_addr_location(struct thread *self,
|
|
struct perf_session *session, u8 cpumode,
|
|
enum map_type type, pid_t pid, u64 addr,
|
|
struct addr_location *al,
|
|
symbol_filter_t filter)
|
|
{
|
|
thread__find_addr_map(self, session, cpumode, type, pid, addr, al);
|
|
if (al->map != NULL)
|
|
al->sym = map__find_symbol(al->map, al->addr, filter);
|
|
else
|
|
al->sym = NULL;
|
|
}
|
|
|
|
int perf_event__preprocess_sample(const union perf_event *event,
|
|
struct perf_session *session,
|
|
struct addr_location *al,
|
|
struct perf_sample *sample,
|
|
symbol_filter_t filter)
|
|
{
|
|
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
|
|
struct thread *thread = perf_session__findnew(session, event->ip.pid);
|
|
|
|
if (thread == NULL)
|
|
return -1;
|
|
|
|
if (symbol_conf.comm_list &&
|
|
!strlist__has_entry(symbol_conf.comm_list, thread->comm))
|
|
goto out_filtered;
|
|
|
|
dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
|
|
/*
|
|
* Have we already created the kernel maps for the host machine?
|
|
*
|
|
* This should have happened earlier, when we processed the kernel MMAP
|
|
* events, but for older perf.data files there was no such thing, so do
|
|
* it now.
|
|
*/
|
|
if (cpumode == PERF_RECORD_MISC_KERNEL &&
|
|
session->host_machine.vmlinux_maps[MAP__FUNCTION] == NULL)
|
|
machine__create_kernel_maps(&session->host_machine);
|
|
|
|
thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
|
|
event->ip.pid, event->ip.ip, al);
|
|
dump_printf(" ...... dso: %s\n",
|
|
al->map ? al->map->dso->long_name :
|
|
al->level == 'H' ? "[hypervisor]" : "<not found>");
|
|
al->sym = NULL;
|
|
al->cpu = sample->cpu;
|
|
|
|
if (al->map) {
|
|
if (symbol_conf.dso_list &&
|
|
(!al->map || !al->map->dso ||
|
|
!(strlist__has_entry(symbol_conf.dso_list,
|
|
al->map->dso->short_name) ||
|
|
(al->map->dso->short_name != al->map->dso->long_name &&
|
|
strlist__has_entry(symbol_conf.dso_list,
|
|
al->map->dso->long_name)))))
|
|
goto out_filtered;
|
|
|
|
al->sym = map__find_symbol(al->map, al->addr, filter);
|
|
}
|
|
|
|
if (symbol_conf.sym_list && al->sym &&
|
|
!strlist__has_entry(symbol_conf.sym_list, al->sym->name))
|
|
goto out_filtered;
|
|
|
|
return 0;
|
|
|
|
out_filtered:
|
|
al->filtered = true;
|
|
return 0;
|
|
}
|