#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:%Ld: lost:%Ld\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: [%#Lx(%#Lx) @ %#Lx]: %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; } static int event__parse_id_sample(const event_t *event, struct perf_session *session, struct sample_data *sample) { const u64 *array; u64 type; sample->cpu = sample->pid = sample->tid = -1; sample->stream_id = sample->id = sample->time = -1ULL; if (!session->sample_id_all) return 0; array = event->sample.array; array += ((event->header.size - sizeof(event->header)) / sizeof(u64)) - 1; type = session->sample_type; if (type & PERF_SAMPLE_CPU) { u32 *p = (u32 *)array; sample->cpu = *p; array--; } if (type & PERF_SAMPLE_STREAM_ID) { sample->stream_id = *array; array--; } if (type & PERF_SAMPLE_ID) { sample->id = *array; array--; } if (type & PERF_SAMPLE_TIME) { sample->time = *array; array--; } if (type & PERF_SAMPLE_TID) { u32 *p = (u32 *)array; sample->pid = p[0]; sample->tid = p[1]; } return 0; } int event__parse_sample(const event_t *event, struct perf_session *session, struct sample_data *data) { const u64 *array; u64 type; if (event->header.type != PERF_RECORD_SAMPLE) return event__parse_id_sample(event, session, data); array = event->sample.array; type = session->sample_type; if (type & PERF_SAMPLE_IP) { data->ip = event->ip.ip; array++; } if (type & PERF_SAMPLE_TID) { u32 *p = (u32 *)array; data->pid = p[0]; data->tid = p[1]; array++; } if (type & PERF_SAMPLE_TIME) { data->time = *array; array++; } if (type & PERF_SAMPLE_ADDR) { data->addr = *array; array++; } data->id = -1ULL; if (type & PERF_SAMPLE_ID) { data->id = *array; array++; } if (type & PERF_SAMPLE_STREAM_ID) { data->stream_id = *array; array++; } if (type & PERF_SAMPLE_CPU) { u32 *p = (u32 *)array; data->cpu = *p; array++; } else data->cpu = -1; if (type & PERF_SAMPLE_PERIOD) { data->period = *array; array++; } if (type & PERF_SAMPLE_READ) { pr_debug("PERF_SAMPLE_READ is unsuported for now\n"); return -1; } if (type & PERF_SAMPLE_CALLCHAIN) { data->callchain = (struct ip_callchain *)array; array += 1 + data->callchain->nr; } if (type & PERF_SAMPLE_RAW) { u32 *p = (u32 *)array; data->raw_size = *p; p++; data->raw_data = p; } return 0; }