| #include <linux/types.h> |
| #include "event.h" |
| #include "debug.h" |
| #include "session.h" |
| #include "sort.h" |
| #include "string.h" |
| #include "strlist.h" |
| #include "thread.h" |
| |
| static const char *event__name[] = { |
| [0] = "TOTAL", |
| [PERF_RECORD_MMAP] = "MMAP", |
| [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 *event__get_event_name(unsigned int id) |
| { |
| if (id >= ARRAY_SIZE(event__name)) |
| return "INVALID"; |
| if (!event__name[id]) |
| return "UNKNOWN"; |
| return event__name[id]; |
| } |
| |
| static struct sample_data synth_sample = { |
| .pid = -1, |
| .tid = -1, |
| .time = -1, |
| .stream_id = -1, |
| .cpu = -1, |
| .period = 1, |
| }; |
| |
| static pid_t event__synthesize_comm(event_t *event, pid_t pid, int full, |
| event__handler_t process, |
| struct perf_session *session) |
| { |
| char filename[PATH_MAX]; |
| char bf[BUFSIZ]; |
| FILE *fp; |
| size_t size = 0; |
| DIR *tasks; |
| struct dirent dirent, *next; |
| pid_t tgid = 0; |
| |
| snprintf(filename, sizeof(filename), "/proc/%d/status", pid); |
| |
| fp = fopen(filename, "r"); |
| if (fp == NULL) { |
| out_race: |
| /* |
| * We raced with a task exiting - just return: |
| */ |
| pr_debug("couldn't open %s\n", filename); |
| return 0; |
| } |
| |
| memset(&event->comm, 0, sizeof(event->comm)); |
| |
| while (!event->comm.comm[0] || !event->comm.pid) { |
| if (fgets(bf, sizeof(bf), fp) == NULL) { |
| pr_warning("couldn't get COMM and pgid, malformed %s\n", filename); |
| goto out; |
| } |
| |
| if (memcmp(bf, "Name:", 5) == 0) { |
| char *name = bf + 5; |
| while (*name && isspace(*name)) |
| ++name; |
| size = strlen(name) - 1; |
| memcpy(event->comm.comm, name, size++); |
| } else if (memcmp(bf, "Tgid:", 5) == 0) { |
| char *tgids = bf + 5; |
| while (*tgids && isspace(*tgids)) |
| ++tgids; |
| tgid = event->comm.pid = atoi(tgids); |
| } |
| } |
| |
| event->comm.header.type = PERF_RECORD_COMM; |
| size = ALIGN(size, sizeof(u64)); |
| memset(event->comm.comm + size, 0, session->id_hdr_size); |
| event->comm.header.size = (sizeof(event->comm) - |
| (sizeof(event->comm.comm) - size) + |
| session->id_hdr_size); |
| if (!full) { |
| event->comm.tid = pid; |
| |
| process(event, &synth_sample, session); |
| goto out; |
| } |
| |
| snprintf(filename, sizeof(filename), "/proc/%d/task", pid); |
| |
| tasks = opendir(filename); |
| if (tasks == NULL) |
| goto out_race; |
| |
| while (!readdir_r(tasks, &dirent, &next) && next) { |
| char *end; |
| pid = strtol(dirent.d_name, &end, 10); |
| if (*end) |
| continue; |
| |
| event->comm.tid = pid; |
| |
| process(event, &synth_sample, session); |
| } |
| |
| closedir(tasks); |
| out: |
| fclose(fp); |
| |
| return tgid; |
| } |
| |
| static int event__synthesize_mmap_events(event_t *event, pid_t pid, pid_t tgid, |
| event__handler_t process, |
| struct perf_session *session) |
| { |
| char filename[PATH_MAX]; |
| FILE *fp; |
| |
| 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; |
| /* |
| * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c |
| */ |
| event->header.misc = PERF_RECORD_MISC_USER; |
| |
| while (1) { |
| char bf[BUFSIZ], *pbf = bf; |
| int n; |
| size_t size; |
| if (fgets(bf, sizeof(bf), fp) == NULL) |
| break; |
| |
| /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */ |
| n = hex2u64(pbf, &event->mmap.start); |
| if (n < 0) |
| continue; |
| pbf += n + 1; |
| n = hex2u64(pbf, &event->mmap.len); |
| if (n < 0) |
| continue; |
| pbf += n + 3; |
| if (*pbf == 'x') { /* vm_exec */ |
| char *execname = strchr(bf, '/'); |
| |
| /* Catch VDSO */ |
| if (execname == NULL) |
| execname = strstr(bf, "[vdso]"); |
| |
| if (execname == NULL) |
| continue; |
| |
| pbf += 3; |
| n = hex2u64(pbf, &event->mmap.pgoff); |
| |
| size = strlen(execname); |
| execname[size - 1] = '\0'; /* Remove \n */ |
| memcpy(event->mmap.filename, execname, size); |
| size = 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, session->id_hdr_size); |
| event->mmap.header.size += session->id_hdr_size; |
| event->mmap.pid = tgid; |
| event->mmap.tid = pid; |
| |
| process(event, &synth_sample, session); |
| } |
| } |
| |
| fclose(fp); |
| return 0; |
| } |
| |
| int event__synthesize_modules(event__handler_t process, |
| struct perf_session *session, |
| struct machine *machine) |
| { |
| struct rb_node *nd; |
| struct map_groups *kmaps = &machine->kmaps; |
| event_t *event = zalloc(sizeof(event->mmap) + session->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 = 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, session->id_hdr_size); |
| event->mmap.header.size += session->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); |
| process(event, &synth_sample, session); |
| } |
| |
| free(event); |
| return 0; |
| } |
| |
| static int __event__synthesize_thread(event_t *comm_event, event_t *mmap_event, |
| pid_t pid, event__handler_t process, |
| struct perf_session *session) |
| { |
| pid_t tgid = event__synthesize_comm(comm_event, pid, 1, process, |
| session); |
| if (tgid == -1) |
| return -1; |
| return event__synthesize_mmap_events(mmap_event, pid, tgid, |
| process, session); |
| } |
| |
| int event__synthesize_thread(pid_t pid, event__handler_t process, |
| struct perf_session *session) |
| { |
| event_t *comm_event, *mmap_event; |
| int err = -1; |
| |
| comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size); |
| if (comm_event == NULL) |
| goto out; |
| |
| mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size); |
| if (mmap_event == NULL) |
| goto out_free_comm; |
| |
| err = __event__synthesize_thread(comm_event, mmap_event, pid, |
| process, session); |
| free(mmap_event); |
| out_free_comm: |
| free(comm_event); |
| out: |
| return err; |
| } |
| |
| int event__synthesize_threads(event__handler_t process, |
| struct perf_session *session) |
| { |
| DIR *proc; |
| struct dirent dirent, *next; |
| event_t *comm_event, *mmap_event; |
| int err = -1; |
| |
| comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size); |
| if (comm_event == NULL) |
| goto out; |
| |
| mmap_event = malloc(sizeof(mmap_event->mmap) + session->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; |
| |
| __event__synthesize_thread(comm_event, mmap_event, pid, |
| process, session); |
| } |
| |
| closedir(proc); |
| err = 0; |
| 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, u64 end __used) |
| { |
| 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 event__synthesize_kernel_mmap(event__handler_t process, |
| struct perf_session *session, |
| 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, }; |
| event_t *event = zalloc(sizeof(event->mmap) + session->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) |
| 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 = ALIGN(size, sizeof(u64)); |
| event->mmap.header.type = PERF_RECORD_MMAP; |
| event->mmap.header.size = (sizeof(event->mmap) - |
| (sizeof(event->mmap.filename) - size) + session->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(event, &synth_sample, session); |
| free(event); |
| |
| return err; |
| } |
| |
| static void thread__comm_adjust(struct thread *self, struct hists *hists) |
| { |
| char *comm = self->comm; |
| |
| if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep && |
| (!symbol_conf.comm_list || |
| strlist__has_entry(symbol_conf.comm_list, comm))) { |
| u16 slen = strlen(comm); |
| |
| if (hists__new_col_len(hists, HISTC_COMM, slen)) |
| hists__set_col_len(hists, HISTC_THREAD, slen + 6); |
| } |
| } |
| |
| static int thread__set_comm_adjust(struct thread *self, const char *comm, |
| struct hists *hists) |
| { |
| int ret = thread__set_comm(self, comm); |
| |
| if (ret) |
| return ret; |
| |
| thread__comm_adjust(self, hists); |
| |
| return 0; |
| } |
| |
| int event__process_comm(event_t *self, struct sample_data *sample __used, |
| struct perf_session *session) |
| { |
| struct thread *thread = perf_session__findnew(session, self->comm.tid); |
| |
| dump_printf(": %s:%d\n", self->comm.comm, self->comm.tid); |
| |
| if (thread == NULL || thread__set_comm_adjust(thread, self->comm.comm, |
| &session->hists)) { |
| dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int event__process_lost(event_t *self, struct sample_data *sample __used, |
| struct perf_session *session) |
| { |
| dump_printf(": id:%" PRIu64 ": lost:%" PRIu64 "\n", |
| self->lost.id, self->lost.lost); |
| session->hists.stats.total_lost += self->lost.lost; |
| return 0; |
| } |
| |
| static void event_set_kernel_mmap_len(struct map **maps, event_t *self) |
| { |
| maps[MAP__FUNCTION]->start = self->mmap.start; |
| maps[MAP__FUNCTION]->end = self->mmap.start + self->mmap.len; |
| /* |
| * Be a bit paranoid here, some perf.data file came with |
| * a zero sized synthesized MMAP event for the kernel. |
| */ |
| if (maps[MAP__FUNCTION]->end == 0) |
| maps[MAP__FUNCTION]->end = ~0ULL; |
| } |
| |
| static int event__process_kernel_mmap(event_t *self, |
| struct perf_session *session) |
| { |
| struct map *map; |
| char kmmap_prefix[PATH_MAX]; |
| struct machine *machine; |
| enum dso_kernel_type kernel_type; |
| bool is_kernel_mmap; |
| |
| machine = perf_session__findnew_machine(session, self->mmap.pid); |
| if (!machine) { |
| pr_err("Can't find id %d's machine\n", self->mmap.pid); |
| goto out_problem; |
| } |
| |
| machine__mmap_name(machine, kmmap_prefix, sizeof(kmmap_prefix)); |
| if (machine__is_host(machine)) |
| kernel_type = DSO_TYPE_KERNEL; |
| else |
| kernel_type = DSO_TYPE_GUEST_KERNEL; |
| |
| is_kernel_mmap = memcmp(self->mmap.filename, |
| kmmap_prefix, |
| strlen(kmmap_prefix)) == 0; |
| if (self->mmap.filename[0] == '/' || |
| (!is_kernel_mmap && self->mmap.filename[0] == '[')) { |
| |
| char short_module_name[1024]; |
| char *name, *dot; |
| |
| if (self->mmap.filename[0] == '/') { |
| name = strrchr(self->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, self->mmap.filename); |
| |
| map = machine__new_module(machine, self->mmap.start, |
| self->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 + self->mmap.len; |
| } else if (is_kernel_mmap) { |
| const char *symbol_name = (self->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; |
| |
| event_set_kernel_mmap_len(machine->vmlinux_maps, self); |
| perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, |
| symbol_name, |
| self->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 event__process_mmap(event_t *self, struct sample_data *sample __used, |
| struct perf_session *session) |
| { |
| struct machine *machine; |
| struct thread *thread; |
| struct map *map; |
| u8 cpumode = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| int ret = 0; |
| |
| dump_printf(" %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n", |
| self->mmap.pid, self->mmap.tid, self->mmap.start, |
| self->mmap.len, self->mmap.pgoff, self->mmap.filename); |
| |
| if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL || |
| cpumode == PERF_RECORD_MISC_KERNEL) { |
| ret = event__process_kernel_mmap(self, 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, self->mmap.pid); |
| if (thread == NULL) |
| goto out_problem; |
| map = map__new(&machine->user_dsos, self->mmap.start, |
| self->mmap.len, self->mmap.pgoff, |
| self->mmap.pid, self->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 event__process_task(event_t *self, struct sample_data *sample __used, |
| struct perf_session *session) |
| { |
| struct thread *thread = perf_session__findnew(session, self->fork.tid); |
| struct thread *parent = perf_session__findnew(session, self->fork.ptid); |
| |
| dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid, |
| self->fork.ppid, self->fork.ptid); |
| |
| if (self->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 event__process(event_t *event, struct sample_data *sample, |
| struct perf_session *session) |
| { |
| switch (event->header.type) { |
| case PERF_RECORD_COMM: |
| event__process_comm(event, sample, session); |
| break; |
| case PERF_RECORD_MMAP: |
| event__process_mmap(event, sample, session); |
| break; |
| case PERF_RECORD_FORK: |
| case PERF_RECORD_EXIT: |
| event__process_task(event, sample, session); |
| break; |
| 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; |
| } |
| |
| static void dso__calc_col_width(struct dso *self, struct hists *hists) |
| { |
| if (!symbol_conf.col_width_list_str && !symbol_conf.field_sep && |
| (!symbol_conf.dso_list || |
| strlist__has_entry(symbol_conf.dso_list, self->name))) { |
| u16 slen = dso__name_len(self); |
| hists__new_col_len(hists, HISTC_DSO, slen); |
| } |
| |
| self->slen_calculated = 1; |
| } |
| |
| int event__preprocess_sample(const event_t *self, struct perf_session *session, |
| struct addr_location *al, struct sample_data *data, |
| symbol_filter_t filter) |
| { |
| u8 cpumode = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| struct thread *thread = perf_session__findnew(session, self->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, |
| self->ip.pid, self->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 = data->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; |
| /* |
| * We have to do this here as we may have a dso with no symbol |
| * hit that has a name longer than the ones with symbols |
| * sampled. |
| */ |
| if (!sort_dso.elide && !al->map->dso->slen_calculated) |
| dso__calc_col_width(al->map->dso, &session->hists); |
| |
| al->sym = map__find_symbol(al->map, al->addr, filter); |
| } else { |
| const unsigned int unresolved_col_width = BITS_PER_LONG / 4; |
| |
| if (hists__col_len(&session->hists, HISTC_DSO) < unresolved_col_width && |
| !symbol_conf.col_width_list_str && !symbol_conf.field_sep && |
| !symbol_conf.dso_list) |
| hists__set_col_len(&session->hists, HISTC_DSO, |
| unresolved_col_width); |
| } |
| |
| 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; |
| } |