| #include <linux/types.h> |
| #include "event.h" |
| #include "debug.h" |
| #include "machine.h" |
| #include "sort.h" |
| #include "string.h" |
| #include "strlist.h" |
| #include "thread.h" |
| #include "thread_map.h" |
| #include "symbol/kallsyms.h" |
| |
| static const char *perf_event__names[] = { |
| [0] = "TOTAL", |
| [PERF_RECORD_MMAP] = "MMAP", |
| [PERF_RECORD_MMAP2] = "MMAP2", |
| [PERF_RECORD_LOST] = "LOST", |
| [PERF_RECORD_COMM] = "COMM", |
| [PERF_RECORD_EXIT] = "EXIT", |
| [PERF_RECORD_THROTTLE] = "THROTTLE", |
| [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", |
| [PERF_RECORD_FORK] = "FORK", |
| [PERF_RECORD_READ] = "READ", |
| [PERF_RECORD_SAMPLE] = "SAMPLE", |
| [PERF_RECORD_HEADER_ATTR] = "ATTR", |
| [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE", |
| [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA", |
| [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID", |
| [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND", |
| }; |
| |
| const char *perf_event__name(unsigned int id) |
| { |
| if (id >= ARRAY_SIZE(perf_event__names)) |
| return "INVALID"; |
| if (!perf_event__names[id]) |
| return "UNKNOWN"; |
| return perf_event__names[id]; |
| } |
| |
| static struct perf_sample synth_sample = { |
| .pid = -1, |
| .tid = -1, |
| .time = -1, |
| .stream_id = -1, |
| .cpu = -1, |
| .period = 1, |
| }; |
| |
| static pid_t perf_event__get_comm_tgid(pid_t pid, char *comm, size_t len) |
| { |
| char filename[PATH_MAX]; |
| char bf[BUFSIZ]; |
| FILE *fp; |
| size_t size = 0; |
| pid_t tgid = -1; |
| |
| snprintf(filename, sizeof(filename), "/proc/%d/status", pid); |
| |
| fp = fopen(filename, "r"); |
| if (fp == NULL) { |
| pr_debug("couldn't open %s\n", filename); |
| return 0; |
| } |
| |
| while (!comm[0] || (tgid < 0)) { |
| if (fgets(bf, sizeof(bf), fp) == NULL) { |
| pr_warning("couldn't get COMM and pgid, malformed %s\n", |
| filename); |
| break; |
| } |
| |
| if (memcmp(bf, "Name:", 5) == 0) { |
| char *name = bf + 5; |
| while (*name && isspace(*name)) |
| ++name; |
| size = strlen(name) - 1; |
| if (size >= len) |
| size = len - 1; |
| memcpy(comm, name, size); |
| comm[size] = '\0'; |
| |
| } else if (memcmp(bf, "Tgid:", 5) == 0) { |
| char *tgids = bf + 5; |
| while (*tgids && isspace(*tgids)) |
| ++tgids; |
| tgid = atoi(tgids); |
| } |
| } |
| |
| fclose(fp); |
| |
| return tgid; |
| } |
| |
| static pid_t perf_event__synthesize_comm(struct perf_tool *tool, |
| union perf_event *event, pid_t pid, |
| int full, |
| perf_event__handler_t process, |
| struct machine *machine) |
| { |
| char filename[PATH_MAX]; |
| size_t size; |
| DIR *tasks; |
| struct dirent dirent, *next; |
| pid_t tgid; |
| |
| memset(&event->comm, 0, sizeof(event->comm)); |
| |
| tgid = perf_event__get_comm_tgid(pid, event->comm.comm, |
| sizeof(event->comm.comm)); |
| if (tgid < 0) |
| goto out; |
| |
| event->comm.pid = tgid; |
| event->comm.header.type = PERF_RECORD_COMM; |
| |
| size = strlen(event->comm.comm) + 1; |
| size = PERF_ALIGN(size, sizeof(u64)); |
| memset(event->comm.comm + size, 0, machine->id_hdr_size); |
| event->comm.header.size = (sizeof(event->comm) - |
| (sizeof(event->comm.comm) - size) + |
| machine->id_hdr_size); |
| if (!full) { |
| event->comm.tid = pid; |
| |
| if (process(tool, event, &synth_sample, machine) != 0) |
| return -1; |
| |
| goto out; |
| } |
| |
| snprintf(filename, sizeof(filename), "/proc/%d/task", pid); |
| |
| tasks = opendir(filename); |
| if (tasks == NULL) { |
| pr_debug("couldn't open %s\n", filename); |
| return 0; |
| } |
| |
| while (!readdir_r(tasks, &dirent, &next) && next) { |
| char *end; |
| pid = strtol(dirent.d_name, &end, 10); |
| if (*end) |
| continue; |
| |
| /* already have tgid; jut want to update the comm */ |
| (void) perf_event__get_comm_tgid(pid, event->comm.comm, |
| sizeof(event->comm.comm)); |
| |
| size = strlen(event->comm.comm) + 1; |
| size = PERF_ALIGN(size, sizeof(u64)); |
| memset(event->comm.comm + size, 0, machine->id_hdr_size); |
| event->comm.header.size = (sizeof(event->comm) - |
| (sizeof(event->comm.comm) - size) + |
| machine->id_hdr_size); |
| |
| event->comm.tid = pid; |
| |
| if (process(tool, event, &synth_sample, machine) != 0) { |
| tgid = -1; |
| break; |
| } |
| } |
| |
| closedir(tasks); |
| out: |
| return tgid; |
| } |
| |
| static int perf_event__synthesize_mmap_events(struct perf_tool *tool, |
| union perf_event *event, |
| pid_t pid, pid_t tgid, |
| perf_event__handler_t process, |
| struct machine *machine, |
| bool mmap_data) |
| { |
| char filename[PATH_MAX]; |
| FILE *fp; |
| int rc = 0; |
| |
| snprintf(filename, sizeof(filename), "/proc/%d/maps", pid); |
| |
| fp = fopen(filename, "r"); |
| if (fp == NULL) { |
| /* |
| * We raced with a task exiting - just return: |
| */ |
| pr_debug("couldn't open %s\n", filename); |
| return -1; |
| } |
| |
| event->header.type = PERF_RECORD_MMAP; |
| |
| while (1) { |
| char bf[BUFSIZ]; |
| char prot[5]; |
| char execname[PATH_MAX]; |
| char anonstr[] = "//anon"; |
| size_t size; |
| ssize_t n; |
| |
| if (fgets(bf, sizeof(bf), fp) == NULL) |
| break; |
| |
| /* ensure null termination since stack will be reused. */ |
| strcpy(execname, ""); |
| |
| /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
| n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n", |
| &event->mmap.start, &event->mmap.len, prot, |
| &event->mmap.pgoff, |
| execname); |
| /* |
| * Anon maps don't have the execname. |
| */ |
| if (n < 4) |
| continue; |
| /* |
| * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c |
| */ |
| event->header.misc = PERF_RECORD_MISC_USER; |
| |
| if (prot[2] != 'x') { |
| if (!mmap_data || prot[0] != 'r') |
| continue; |
| |
| event->header.misc |= PERF_RECORD_MISC_MMAP_DATA; |
| } |
| |
| if (!strcmp(execname, "")) |
| strcpy(execname, anonstr); |
| |
| size = strlen(execname) + 1; |
| memcpy(event->mmap.filename, execname, size); |
| size = PERF_ALIGN(size, sizeof(u64)); |
| event->mmap.len -= event->mmap.start; |
| event->mmap.header.size = (sizeof(event->mmap) - |
| (sizeof(event->mmap.filename) - size)); |
| memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| event->mmap.header.size += machine->id_hdr_size; |
| event->mmap.pid = tgid; |
| event->mmap.tid = pid; |
| |
| if (process(tool, event, &synth_sample, machine) != 0) { |
| rc = -1; |
| break; |
| } |
| } |
| |
| fclose(fp); |
| return rc; |
| } |
| |
| int perf_event__synthesize_modules(struct perf_tool *tool, |
| perf_event__handler_t process, |
| struct machine *machine) |
| { |
| int rc = 0; |
| struct rb_node *nd; |
| struct map_groups *kmaps = &machine->kmaps; |
| union perf_event *event = zalloc((sizeof(event->mmap) + |
| machine->id_hdr_size)); |
| if (event == NULL) { |
| pr_debug("Not enough memory synthesizing mmap event " |
| "for kernel modules\n"); |
| return -1; |
| } |
| |
| event->header.type = PERF_RECORD_MMAP; |
| |
| /* |
| * kernel uses 0 for user space maps, see kernel/perf_event.c |
| * __perf_event_mmap |
| */ |
| if (machine__is_host(machine)) |
| event->header.misc = PERF_RECORD_MISC_KERNEL; |
| else |
| event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
| |
| for (nd = rb_first(&kmaps->maps[MAP__FUNCTION]); |
| nd; nd = rb_next(nd)) { |
| size_t size; |
| struct map *pos = rb_entry(nd, struct map, rb_node); |
| |
| if (pos->dso->kernel) |
| continue; |
| |
| size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); |
| event->mmap.header.type = PERF_RECORD_MMAP; |
| event->mmap.header.size = (sizeof(event->mmap) - |
| (sizeof(event->mmap.filename) - size)); |
| memset(event->mmap.filename + size, 0, machine->id_hdr_size); |
| event->mmap.header.size += machine->id_hdr_size; |
| event->mmap.start = pos->start; |
| event->mmap.len = pos->end - pos->start; |
| event->mmap.pid = machine->pid; |
| |
| memcpy(event->mmap.filename, pos->dso->long_name, |
| pos->dso->long_name_len + 1); |
| if (process(tool, event, &synth_sample, machine) != 0) { |
| rc = -1; |
| break; |
| } |
| } |
| |
| free(event); |
| return rc; |
| } |
| |
| static int __event__synthesize_thread(union perf_event *comm_event, |
| union perf_event *mmap_event, |
| pid_t pid, int full, |
| perf_event__handler_t process, |
| struct perf_tool *tool, |
| struct machine *machine, bool mmap_data) |
| { |
| pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full, |
| process, machine); |
| if (tgid == -1) |
| return -1; |
| return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, |
| process, machine, mmap_data); |
| } |
| |
| int perf_event__synthesize_thread_map(struct perf_tool *tool, |
| struct thread_map *threads, |
| perf_event__handler_t process, |
| struct machine *machine, |
| bool mmap_data) |
| { |
| union perf_event *comm_event, *mmap_event; |
| int err = -1, thread, j; |
| |
| comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
| if (comm_event == NULL) |
| goto out; |
| |
| mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
| if (mmap_event == NULL) |
| goto out_free_comm; |
| |
| err = 0; |
| for (thread = 0; thread < threads->nr; ++thread) { |
| if (__event__synthesize_thread(comm_event, mmap_event, |
| threads->map[thread], 0, |
| process, tool, machine, |
| mmap_data)) { |
| err = -1; |
| break; |
| } |
| |
| /* |
| * comm.pid is set to thread group id by |
| * perf_event__synthesize_comm |
| */ |
| if ((int) comm_event->comm.pid != threads->map[thread]) { |
| bool need_leader = true; |
| |
| /* is thread group leader in thread_map? */ |
| for (j = 0; j < threads->nr; ++j) { |
| if ((int) comm_event->comm.pid == threads->map[j]) { |
| need_leader = false; |
| break; |
| } |
| } |
| |
| /* if not, generate events for it */ |
| if (need_leader && |
| __event__synthesize_thread(comm_event, mmap_event, |
| comm_event->comm.pid, 0, |
| process, tool, machine, |
| mmap_data)) { |
| err = -1; |
| break; |
| } |
| } |
| } |
| free(mmap_event); |
| out_free_comm: |
| free(comm_event); |
| out: |
| return err; |
| } |
| |
| int perf_event__synthesize_threads(struct perf_tool *tool, |
| perf_event__handler_t process, |
| struct machine *machine, bool mmap_data) |
| { |
| DIR *proc; |
| struct dirent dirent, *next; |
| union perf_event *comm_event, *mmap_event; |
| int err = -1; |
| |
| comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size); |
| if (comm_event == NULL) |
| goto out; |
| |
| mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size); |
| if (mmap_event == NULL) |
| goto out_free_comm; |
| |
| proc = opendir("/proc"); |
| if (proc == NULL) |
| goto out_free_mmap; |
| |
| while (!readdir_r(proc, &dirent, &next) && next) { |
| char *end; |
| pid_t pid = strtol(dirent.d_name, &end, 10); |
| |
| if (*end) /* only interested in proper numerical dirents */ |
| continue; |
| /* |
| * We may race with exiting thread, so don't stop just because |
| * one thread couldn't be synthesized. |
| */ |
| __event__synthesize_thread(comm_event, mmap_event, pid, 1, |
| process, tool, machine, mmap_data); |
| } |
| |
| err = 0; |
| closedir(proc); |
| out_free_mmap: |
| free(mmap_event); |
| out_free_comm: |
| free(comm_event); |
| out: |
| return err; |
| } |
| |
| struct process_symbol_args { |
| const char *name; |
| u64 start; |
| }; |
| |
| static int find_symbol_cb(void *arg, const char *name, char type, |
| u64 start) |
| { |
| struct process_symbol_args *args = arg; |
| |
| /* |
| * Must be a function or at least an alias, as in PARISC64, where "_text" is |
| * an 'A' to the same address as "_stext". |
| */ |
| if (!(symbol_type__is_a(type, MAP__FUNCTION) || |
| type == 'A') || strcmp(name, args->name)) |
| return 0; |
| |
| args->start = start; |
| return 1; |
| } |
| |
| int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, |
| perf_event__handler_t process, |
| struct machine *machine, |
| const char *symbol_name) |
| { |
| size_t size; |
| const char *filename, *mmap_name; |
| char path[PATH_MAX]; |
| char name_buff[PATH_MAX]; |
| struct map *map; |
| int err; |
| /* |
| * We should get this from /sys/kernel/sections/.text, but till that is |
| * available use this, and after it is use this as a fallback for older |
| * kernels. |
| */ |
| struct process_symbol_args args = { .name = symbol_name, }; |
| union perf_event *event = zalloc((sizeof(event->mmap) + |
| machine->id_hdr_size)); |
| if (event == NULL) { |
| pr_debug("Not enough memory synthesizing mmap event " |
| "for kernel modules\n"); |
| return -1; |
| } |
| |
| mmap_name = machine__mmap_name(machine, name_buff, sizeof(name_buff)); |
| if (machine__is_host(machine)) { |
| /* |
| * kernel uses PERF_RECORD_MISC_USER for user space maps, |
| * see kernel/perf_event.c __perf_event_mmap |
| */ |
| event->header.misc = PERF_RECORD_MISC_KERNEL; |
| filename = "/proc/kallsyms"; |
| } else { |
| event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
| if (machine__is_default_guest(machine)) |
| filename = (char *) symbol_conf.default_guest_kallsyms; |
| else { |
| sprintf(path, "%s/proc/kallsyms", machine->root_dir); |
| filename = path; |
| } |
| } |
| |
| if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) { |
| free(event); |
| return -ENOENT; |
| } |
| |
| map = machine->vmlinux_maps[MAP__FUNCTION]; |
| size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), |
| "%s%s", mmap_name, symbol_name) + 1; |
| size = PERF_ALIGN(size, sizeof(u64)); |
| event->mmap.header.type = PERF_RECORD_MMAP; |
| event->mmap.header.size = (sizeof(event->mmap) - |
| (sizeof(event->mmap.filename) - size) + machine->id_hdr_size); |
| event->mmap.pgoff = args.start; |
| event->mmap.start = map->start; |
| event->mmap.len = map->end - event->mmap.start; |
| event->mmap.pid = machine->pid; |
| |
| err = process(tool, event, &synth_sample, machine); |
| free(event); |
| |
| return err; |
| } |
| |
| size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) |
| { |
| return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); |
| } |
| |
| int perf_event__process_comm(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_comm_event(machine, event, sample); |
| } |
| |
| int perf_event__process_lost(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_lost_event(machine, event, sample); |
| } |
| |
| size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) |
| { |
| return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n", |
| event->mmap.pid, event->mmap.tid, event->mmap.start, |
| event->mmap.len, event->mmap.pgoff, |
| (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', |
| event->mmap.filename); |
| } |
| |
| size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) |
| { |
| return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 |
| " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n", |
| event->mmap2.pid, event->mmap2.tid, event->mmap2.start, |
| event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, |
| event->mmap2.min, event->mmap2.ino, |
| event->mmap2.ino_generation, |
| (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', |
| event->mmap2.filename); |
| } |
| |
| int perf_event__process_mmap(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_mmap_event(machine, event, sample); |
| } |
| |
| int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_mmap2_event(machine, event, sample); |
| } |
| |
| size_t perf_event__fprintf_task(union perf_event *event, FILE *fp) |
| { |
| return fprintf(fp, "(%d:%d):(%d:%d)\n", |
| event->fork.pid, event->fork.tid, |
| event->fork.ppid, event->fork.ptid); |
| } |
| |
| int perf_event__process_fork(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_fork_event(machine, event, sample); |
| } |
| |
| int perf_event__process_exit(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_exit_event(machine, event, sample); |
| } |
| |
| size_t perf_event__fprintf(union perf_event *event, FILE *fp) |
| { |
| size_t ret = fprintf(fp, "PERF_RECORD_%s", |
| perf_event__name(event->header.type)); |
| |
| switch (event->header.type) { |
| case PERF_RECORD_COMM: |
| ret += perf_event__fprintf_comm(event, fp); |
| break; |
| case PERF_RECORD_FORK: |
| case PERF_RECORD_EXIT: |
| ret += perf_event__fprintf_task(event, fp); |
| break; |
| case PERF_RECORD_MMAP: |
| ret += perf_event__fprintf_mmap(event, fp); |
| break; |
| case PERF_RECORD_MMAP2: |
| ret += perf_event__fprintf_mmap2(event, fp); |
| break; |
| default: |
| ret += fprintf(fp, "\n"); |
| } |
| |
| return ret; |
| } |
| |
| int perf_event__process(struct perf_tool *tool __maybe_unused, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct machine *machine) |
| { |
| return machine__process_event(machine, event, sample); |
| } |
| |
| void thread__find_addr_map(struct thread *thread, |
| struct machine *machine, u8 cpumode, |
| enum map_type type, u64 addr, |
| struct addr_location *al) |
| { |
| struct map_groups *mg = &thread->mg; |
| bool load_map = false; |
| |
| al->machine = machine; |
| al->thread = thread; |
| al->addr = addr; |
| al->cpumode = cpumode; |
| al->filtered = false; |
| |
| if (machine == NULL) { |
| al->map = NULL; |
| return; |
| } |
| |
| if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) { |
| al->level = 'k'; |
| mg = &machine->kmaps; |
| load_map = true; |
| } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) { |
| al->level = '.'; |
| } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) { |
| al->level = 'g'; |
| mg = &machine->kmaps; |
| load_map = true; |
| } else 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_USER && |
| machine && mg != &machine->kmaps) { |
| mg = &machine->kmaps; |
| goto try_again; |
| } |
| } else { |
| /* |
| * Kernel maps might be changed when loading symbols so loading |
| * must be done prior to using kernel maps. |
| */ |
| if (load_map) |
| map__load(al->map, machine->symbol_filter); |
| al->addr = al->map->map_ip(al->map, al->addr); |
| } |
| } |
| |
| void thread__find_addr_location(struct thread *thread, struct machine *machine, |
| u8 cpumode, enum map_type type, u64 addr, |
| struct addr_location *al) |
| { |
| thread__find_addr_map(thread, machine, cpumode, type, addr, al); |
| if (al->map != NULL) |
| al->sym = map__find_symbol(al->map, al->addr, |
| machine->symbol_filter); |
| else |
| al->sym = NULL; |
| } |
| |
| int perf_event__preprocess_sample(const union perf_event *event, |
| struct machine *machine, |
| struct addr_location *al, |
| struct perf_sample *sample) |
| { |
| u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| struct thread *thread = machine__findnew_thread(machine, sample->pid, |
| sample->pid); |
| |
| if (thread == NULL) |
| return -1; |
| |
| if (thread__is_filtered(thread)) |
| goto out_filtered; |
| |
| dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
| /* |
| * Have we already created the kernel maps for this 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 && |
| machine->vmlinux_maps[MAP__FUNCTION] == NULL) |
| machine__create_kernel_maps(machine); |
| |
| thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
| sample->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) { |
| struct dso *dso = al->map->dso; |
| |
| if (symbol_conf.dso_list && |
| (!dso || !(strlist__has_entry(symbol_conf.dso_list, |
| dso->short_name) || |
| (dso->short_name != dso->long_name && |
| strlist__has_entry(symbol_conf.dso_list, |
| dso->long_name))))) |
| goto out_filtered; |
| |
| al->sym = map__find_symbol(al->map, al->addr, |
| machine->symbol_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; |
| } |