102 static int __do_write_fd(struct feat_fd *ff, const void *buf, size_t size)  in __do_write_fd()  argument
104 	ssize_t ret = writen(ff->fd, buf, size);  in __do_write_fd()
111 static int __do_write_buf(struct feat_fd *ff,  const void *buf, size_t size)  in __do_write_buf()  argument
115 	size_t new_size = ff->size;  in __do_write_buf()
118 	if (size + ff->offset > max_size)  in __do_write_buf()
121 	while (size > (new_size - ff->offset))  in __do_write_buf()
125 	if (ff->size < new_size) {  in __do_write_buf()
126 		addr = realloc(ff->buf, new_size);  in __do_write_buf()
129 		ff->buf = addr;  in __do_write_buf()
130 		ff->size = new_size;  in __do_write_buf()
133 	memcpy(ff->buf + ff->offset, buf, size);  in __do_write_buf()
134 	ff->offset += size;  in __do_write_buf()
140 int do_write(struct feat_fd *ff, const void *buf, size_t size)  in do_write()  argument
142 	if (!ff->buf)  in do_write()
143 		return __do_write_fd(ff, buf, size);  in do_write()
144 	return __do_write_buf(ff, buf, size);  in do_write()
148 static int do_write_bitmap(struct feat_fd *ff, unsigned long *set, u64 size)  in do_write_bitmap()  argument
153 	ret = do_write(ff, &size, sizeof(size));  in do_write_bitmap()
158 		ret = do_write(ff, p + i, sizeof(*p));  in do_write_bitmap()
167 int write_padded(struct feat_fd *ff, const void *bf,  in write_padded()  argument
171 	int err = do_write(ff, bf, count);  in write_padded()
174 		err = do_write(ff, zero_buf, count_aligned - count);  in write_padded()
183 static int do_write_string(struct feat_fd *ff, const char *str)  in do_write_string()  argument
192 	ret = do_write(ff, &len, sizeof(len));  in do_write_string()
196 	return write_padded(ff, str, olen, len);  in do_write_string()
199 static int __do_read_fd(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read_fd()  argument
201 	ssize_t ret = readn(ff->fd, addr, size);  in __do_read_fd()
208 static int __do_read_buf(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read_buf()  argument
210 	if (size > (ssize_t)ff->size - ff->offset)  in __do_read_buf()
213 	memcpy(addr, ff->buf + ff->offset, size);  in __do_read_buf()
214 	ff->offset += size;  in __do_read_buf()
220 static int __do_read(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read()  argument
222 	if (!ff->buf)  in __do_read()
223 		return __do_read_fd(ff, addr, size);  in __do_read()
224 	return __do_read_buf(ff, addr, size);  in __do_read()
227 static int do_read_u32(struct feat_fd *ff, u32 *addr)  in do_read_u32()  argument
231 	ret = __do_read(ff, addr, sizeof(*addr));  in do_read_u32()
235 	if (ff->ph->needs_swap)  in do_read_u32()
240 static int do_read_u64(struct feat_fd *ff, u64 *addr)  in do_read_u64()  argument
244 	ret = __do_read(ff, addr, sizeof(*addr));  in do_read_u64()
248 	if (ff->ph->needs_swap)  in do_read_u64()
253 static char *do_read_string(struct feat_fd *ff)  in do_read_string()  argument
258 	if (do_read_u32(ff, &len))  in do_read_string()
265 	if (!__do_read(ff, buf, len)) {  in do_read_string()
279 static int do_read_bitmap(struct feat_fd *ff, unsigned long **pset, u64 *psize)  in do_read_bitmap()  argument
285 	ret = do_read_u64(ff, &size);  in do_read_bitmap()
296 		ret = do_read_u64(ff, p + i);  in do_read_bitmap()
309 static int write_tracing_data(struct feat_fd *ff,  in write_tracing_data()  argument
312 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_tracing_data()
315 	return read_tracing_data(ff->fd, &evlist->core.entries);  in write_tracing_data()
319 static int write_build_id(struct feat_fd *ff,  in write_build_id()  argument
325 	session = container_of(ff->ph, struct perf_session, header);  in write_build_id()
330 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_build_id()
333 	err = perf_session__write_buildid_table(session, ff);  in write_build_id()
342 static int write_hostname(struct feat_fd *ff,  in write_hostname()  argument
352 	return do_write_string(ff, uts.nodename);  in write_hostname()
355 static int write_osrelease(struct feat_fd *ff,  in write_osrelease()  argument
365 	return do_write_string(ff, uts.release);  in write_osrelease()
368 static int write_arch(struct feat_fd *ff,  in write_arch()  argument
378 	return do_write_string(ff, uts.machine);  in write_arch()
381 static int write_version(struct feat_fd *ff,  in write_version()  argument
384 	return do_write_string(ff, perf_version_string);  in write_version()
387 static int __write_cpudesc(struct feat_fd *ff, const char *cpuinfo_proc)  in __write_cpudesc()  argument
435 	ret = do_write_string(ff, s);  in __write_cpudesc()
442 static int write_cpudesc(struct feat_fd *ff,  in write_cpudesc()  argument
470 		ret = __write_cpudesc(ff, cpuinfo_procs[i]);  in write_cpudesc()
478 static int write_nrcpus(struct feat_fd *ff,  in write_nrcpus()  argument
493 	ret = do_write(ff, &nrc, sizeof(nrc));  in write_nrcpus()
497 	return do_write(ff, &nra, sizeof(nra));  in write_nrcpus()
500 static int write_event_desc(struct feat_fd *ff,  in write_event_desc()  argument
512 	ret = do_write(ff, &nre, sizeof(nre));  in write_event_desc()
520 	ret = do_write(ff, &sz, sizeof(sz));  in write_event_desc()
525 		ret = do_write(ff, &evsel->core.attr, sz);  in write_event_desc()
536 		ret = do_write(ff, &nri, sizeof(nri));  in write_event_desc()
543 		ret = do_write_string(ff, evsel__name(evsel));  in write_event_desc()
549 		ret = do_write(ff, evsel->core.id, evsel->core.ids * sizeof(u64));  in write_event_desc()
556 static int write_cmdline(struct feat_fd *ff,  in write_cmdline()  argument
559 	struct perf_env *env = &ff->ph->env;  in write_cmdline()
569 	ret = do_write(ff, &n, sizeof(n));  in write_cmdline()
573 	ret = do_write_string(ff, buf);  in write_cmdline()
578 		ret = do_write_string(ff, env->cmdline_argv[i]);  in write_cmdline()
586 static int write_cpu_topology(struct feat_fd *ff,  in write_cpu_topology()  argument
589 	struct perf_env *env = &ff->ph->env;  in write_cpu_topology()
598 	ret = do_write(ff, &tp->package_cpus_lists, sizeof(tp->package_cpus_lists));  in write_cpu_topology()
603 		ret = do_write_string(ff, tp->package_cpus_list[i]);  in write_cpu_topology()
607 	ret = do_write(ff, &tp->core_cpus_lists, sizeof(tp->core_cpus_lists));  in write_cpu_topology()
612 		ret = do_write_string(ff, tp->core_cpus_list[i]);  in write_cpu_topology()
622 		ret = do_write(ff, &env->cpu[j].core_id,  in write_cpu_topology()
626 		ret = do_write(ff, &env->cpu[j].socket_id,  in write_cpu_topology()
635 	ret = do_write(ff, &tp->die_cpus_lists, sizeof(tp->die_cpus_lists));  in write_cpu_topology()
640 		ret = do_write_string(ff, tp->die_cpus_list[i]);  in write_cpu_topology()
646 		ret = do_write(ff, &env->cpu[j].die_id,  in write_cpu_topology()
659 static int write_total_mem(struct feat_fd *ff,  in write_total_mem()  argument
680 			ret = do_write(ff, &mem, sizeof(mem));  in write_total_mem()
688 static int write_numa_topology(struct feat_fd *ff,  in write_numa_topology()  argument
699 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_numa_topology()
706 		ret = do_write(ff, &n->node, sizeof(u32));  in write_numa_topology()
710 		ret = do_write(ff, &n->mem_total, sizeof(u64));  in write_numa_topology()
714 		ret = do_write(ff, &n->mem_free, sizeof(u64));  in write_numa_topology()
718 		ret = do_write_string(ff, n->cpus);  in write_numa_topology()
742 static int write_pmu_mappings(struct feat_fd *ff,  in write_pmu_mappings()  argument
756 	ret = do_write(ff, &pmu_num, sizeof(pmu_num));  in write_pmu_mappings()
761 		ret = do_write(ff, &pmu->type, sizeof(pmu->type));  in write_pmu_mappings()
765 		ret = do_write_string(ff, pmu->name);  in write_pmu_mappings()
785 static int write_group_desc(struct feat_fd *ff,  in write_group_desc()  argument
792 	ret = do_write(ff, &nr_groups, sizeof(nr_groups));  in write_group_desc()
802 			ret = do_write_string(ff, name);  in write_group_desc()
806 			ret = do_write(ff, &leader_idx, sizeof(leader_idx));  in write_group_desc()
810 			ret = do_write(ff, &nr_members, sizeof(nr_members));  in write_group_desc()
887 static int write_cpuid(struct feat_fd *ff, struct evlist *evlist)  in write_cpuid()  argument
897 	return do_write_string(ff, buffer);  in write_cpuid()
900 static int write_branch_stack(struct feat_fd *ff __maybe_unused,  in write_branch_stack()
906 static int write_auxtrace(struct feat_fd *ff,  in write_auxtrace()  argument
912 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_auxtrace()
915 	session = container_of(ff->ph, struct perf_session, header);  in write_auxtrace()
917 	err = auxtrace_index__write(ff->fd, &session->auxtrace_index);  in write_auxtrace()
923 static int write_clockid(struct feat_fd *ff,  in write_clockid()  argument
926 	return do_write(ff, &ff->ph->env.clock.clockid_res_ns,  in write_clockid()
927 			sizeof(ff->ph->env.clock.clockid_res_ns));  in write_clockid()
930 static int write_clock_data(struct feat_fd *ff,  in write_clock_data()  argument
940 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
945 	data32 = ff->ph->env.clock.clockid;  in write_clock_data()
947 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
952 	data64 = &ff->ph->env.clock.tod_ns;  in write_clock_data()
954 	ret = do_write(ff, data64, sizeof(*data64));  in write_clock_data()
959 	data64 = &ff->ph->env.clock.clockid_ns;  in write_clock_data()
961 	return do_write(ff, data64, sizeof(*data64));  in write_clock_data()
964 static int write_hybrid_topology(struct feat_fd *ff,  in write_hybrid_topology()  argument
975 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_hybrid_topology()
982 		ret = do_write_string(ff, n->pmu_name);  in write_hybrid_topology()
986 		ret = do_write_string(ff, n->cpus);  in write_hybrid_topology()
998 static int write_dir_format(struct feat_fd *ff,  in write_dir_format()  argument
1004 	session = container_of(ff->ph, struct perf_session, header);  in write_dir_format()
1010 	return do_write(ff, &data->dir.version, sizeof(data->dir.version));  in write_dir_format()
1014 static int write_bpf_prog_info(struct feat_fd *ff,  in write_bpf_prog_info()  argument
1017 	struct perf_env *env = &ff->ph->env;  in write_bpf_prog_info()
1024 	ret = do_write(ff, &env->bpf_progs.infos_cnt,  in write_bpf_prog_info()
1042 		ret = do_write(ff, node->info_linear, len);  in write_bpf_prog_info()
1056 static int write_bpf_btf(struct feat_fd *ff,  in write_bpf_btf()  argument
1059 	struct perf_env *env = &ff->ph->env;  in write_bpf_btf()
1066 	ret = do_write(ff, &env->bpf_progs.btfs_cnt,  in write_bpf_btf()
1079 		ret = do_write(ff, &node->id,  in write_bpf_btf()
1238 static int write_cache(struct feat_fd *ff,  in write_cache()  argument
1252 	ret = do_write(ff, &version, sizeof(u32));  in write_cache()
1256 	ret = do_write(ff, &cnt, sizeof(u32));  in write_cache()
1264 			ret = do_write(ff, &c->v, sizeof(u32));	\  in write_cache()
1275 			ret = do_write_string(ff, (const char *) c->v);	\  in write_cache()
1291 static int write_stat(struct feat_fd *ff __maybe_unused,  in write_stat()
1297 static int write_sample_time(struct feat_fd *ff,  in write_sample_time()  argument
1302 	ret = do_write(ff, &evlist->first_sample_time,  in write_sample_time()
1307 	return do_write(ff, &evlist->last_sample_time,  in write_sample_time()
1450 static int write_mem_topology(struct feat_fd *ff __maybe_unused,  in write_mem_topology()
1466 	ret = do_write(ff, &version, sizeof(version));  in write_mem_topology()
1470 	ret = do_write(ff, &bsize, sizeof(bsize));  in write_mem_topology()
1474 	ret = do_write(ff, &nr, sizeof(nr));  in write_mem_topology()
1482 			ret = do_write(ff, &n->v, sizeof(n->v));	\  in write_mem_topology()
1491 		ret = do_write_bitmap(ff, n->set, n->size);  in write_mem_topology()
1501 static int write_compressed(struct feat_fd *ff __maybe_unused,  in write_compressed()
1506 	ret = do_write(ff, &(ff->ph->env.comp_ver), sizeof(ff->ph->env.comp_ver));  in write_compressed()
1510 	ret = do_write(ff, &(ff->ph->env.comp_type), sizeof(ff->ph->env.comp_type));  in write_compressed()
1514 	ret = do_write(ff, &(ff->ph->env.comp_level), sizeof(ff->ph->env.comp_level));  in write_compressed()
1518 	ret = do_write(ff, &(ff->ph->env.comp_ratio), sizeof(ff->ph->env.comp_ratio));  in write_compressed()
1522 	return do_write(ff, &(ff->ph->env.comp_mmap_len), sizeof(ff->ph->env.comp_mmap_len));  in write_compressed()
1525 static int __write_pmu_caps(struct feat_fd *ff, struct perf_pmu *pmu,  in __write_pmu_caps()  argument
1531 	ret = do_write(ff, &pmu->nr_caps, sizeof(pmu->nr_caps));  in __write_pmu_caps()
1536 		ret = do_write_string(ff, caps->name);  in __write_pmu_caps()
1540 		ret = do_write_string(ff, caps->value);  in __write_pmu_caps()
1546 		ret = do_write_string(ff, pmu->name);  in __write_pmu_caps()
1554 static int write_cpu_pmu_caps(struct feat_fd *ff,  in write_cpu_pmu_caps()  argument
1567 	return __write_pmu_caps(ff, cpu_pmu, false);  in write_cpu_pmu_caps()
1570 static int write_pmu_caps(struct feat_fd *ff,  in write_pmu_caps()  argument
1591 	ret = do_write(ff, &nr_pmu, sizeof(nr_pmu));  in write_pmu_caps()
1610 		ret = __write_pmu_caps(ff, pmu, true);  in write_pmu_caps()
1617 static void print_hostname(struct feat_fd *ff, FILE *fp)  in print_hostname()  argument
1619 	fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);  in print_hostname()
1622 static void print_osrelease(struct feat_fd *ff, FILE *fp)  in print_osrelease()  argument
1624 	fprintf(fp, "# os release : %s\n", ff->ph->env.os_release);  in print_osrelease()
1627 static void print_arch(struct feat_fd *ff, FILE *fp)  in print_arch()  argument
1629 	fprintf(fp, "# arch : %s\n", ff->ph->env.arch);  in print_arch()
1632 static void print_cpudesc(struct feat_fd *ff, FILE *fp)  in print_cpudesc()  argument
1634 	fprintf(fp, "# cpudesc : %s\n", ff->ph->env.cpu_desc);  in print_cpudesc()
1637 static void print_nrcpus(struct feat_fd *ff, FILE *fp)  in print_nrcpus()  argument
1639 	fprintf(fp, "# nrcpus online : %u\n", ff->ph->env.nr_cpus_online);  in print_nrcpus()
1640 	fprintf(fp, "# nrcpus avail : %u\n", ff->ph->env.nr_cpus_avail);  in print_nrcpus()
1643 static void print_version(struct feat_fd *ff, FILE *fp)  in print_version()  argument
1645 	fprintf(fp, "# perf version : %s\n", ff->ph->env.version);  in print_version()
1648 static void print_cmdline(struct feat_fd *ff, FILE *fp)  in print_cmdline()  argument
1652 	nr = ff->ph->env.nr_cmdline;  in print_cmdline()
1657 		char *argv_i = strdup(ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1659 			fprintf(fp, "%s ", ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1677 static void print_cpu_topology(struct feat_fd *ff, FILE *fp)  in print_cpu_topology()  argument
1679 	struct perf_header *ph = ff->ph;  in print_cpu_topology()
1734 static void print_clockid(struct feat_fd *ff, FILE *fp)  in print_clockid()  argument
1737 		ff->ph->env.clock.clockid_res_ns * 1000);  in print_clockid()
1740 static void print_clock_data(struct feat_fd *ff, FILE *fp)  in print_clock_data()  argument
1749 	if (!ff->ph->env.clock.enabled) {  in print_clock_data()
1755 	ref = ff->ph->env.clock.tod_ns;  in print_clock_data()
1761 	ref = ff->ph->env.clock.clockid_ns;  in print_clock_data()
1766 	clockid = ff->ph->env.clock.clockid;  in print_clock_data()
1783 static void print_hybrid_topology(struct feat_fd *ff, FILE *fp)  in print_hybrid_topology()  argument
1789 	for (i = 0; i < ff->ph->env.nr_hybrid_nodes; i++) {  in print_hybrid_topology()
1790 		n = &ff->ph->env.hybrid_nodes[i];  in print_hybrid_topology()
1795 static void print_dir_format(struct feat_fd *ff, FILE *fp)  in print_dir_format()  argument
1800 	session = container_of(ff->ph, struct perf_session, header);  in print_dir_format()
1807 static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp)  in print_bpf_prog_info()  argument
1809 	struct perf_env *env = &ff->ph->env;  in print_bpf_prog_info()
1834 static void print_bpf_btf(struct feat_fd *ff, FILE *fp)  in print_bpf_btf()  argument
1836 	struct perf_env *env = &ff->ph->env;  in print_bpf_btf()
1909 static struct evsel *read_event_desc(struct feat_fd *ff)  in read_event_desc()  argument
1918 	if (do_read_u32(ff, &nre))  in read_event_desc()
1921 	if (do_read_u32(ff, &sz))  in read_event_desc()
1945 		if (__do_read(ff, buf, sz))  in read_event_desc()
1948 		if (ff->ph->needs_swap)  in read_event_desc()
1956 		if (do_read_u32(ff, &nr))  in read_event_desc()
1959 		if (ff->ph->needs_swap)  in read_event_desc()
1962 		evsel->name = do_read_string(ff);  in read_event_desc()
1976 			if (do_read_u64(ff, id))  in read_event_desc()
1996 static void print_event_desc(struct feat_fd *ff, FILE *fp)  in print_event_desc()  argument
2002 	if (ff->events)  in print_event_desc()
2003 		events = ff->events;  in print_event_desc()
2005 		events = read_event_desc(ff);  in print_event_desc()
2031 	ff->events = NULL;  in print_event_desc()
2034 static void print_total_mem(struct feat_fd *ff, FILE *fp)  in print_total_mem()  argument
2036 	fprintf(fp, "# total memory : %llu kB\n", ff->ph->env.total_mem);  in print_total_mem()
2039 static void print_numa_topology(struct feat_fd *ff, FILE *fp)  in print_numa_topology()  argument
2044 	for (i = 0; i < ff->ph->env.nr_numa_nodes; i++) {  in print_numa_topology()
2045 		n = &ff->ph->env.numa_nodes[i];  in print_numa_topology()
2056 static void print_cpuid(struct feat_fd *ff, FILE *fp)  in print_cpuid()  argument
2058 	fprintf(fp, "# cpuid : %s\n", ff->ph->env.cpuid);  in print_cpuid()
2061 static void print_branch_stack(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_branch_stack()
2066 static void print_auxtrace(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_auxtrace()
2071 static void print_stat(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_stat()
2076 static void print_cache(struct feat_fd *ff, FILE *fp __maybe_unused)  in print_cache()  argument
2081 	for (i = 0; i < ff->ph->env.caches_cnt; i++) {  in print_cache()
2083 		cpu_cache_level__fprintf(fp, &ff->ph->env.caches[i]);  in print_cache()
2087 static void print_compressed(struct feat_fd *ff, FILE *fp)  in print_compressed()  argument
2090 		ff->ph->env.comp_type == PERF_COMP_ZSTD ? "Zstd" : "Unknown",  in print_compressed()
2091 		ff->ph->env.comp_level, ff->ph->env.comp_ratio);  in print_compressed()
2113 static void print_cpu_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_cpu_pmu_caps()  argument
2115 	__print_pmu_caps(fp, ff->ph->env.nr_cpu_pmu_caps,  in print_cpu_pmu_caps()
2116 			 ff->ph->env.cpu_pmu_caps, (char *)"cpu");  in print_cpu_pmu_caps()
2119 static void print_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_pmu_caps()  argument
2121 	struct perf_env *env = &ff->ph->env;  in print_pmu_caps()
2139 static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)  in print_pmu_mappings()  argument
2141 	struct perf_env *env = &ff->ph->env;  in print_pmu_mappings()
2176 static void print_group_desc(struct feat_fd *ff, FILE *fp)  in print_group_desc()  argument
2182 	session = container_of(ff->ph, struct perf_session, header);  in print_group_desc()
2198 static void print_sample_time(struct feat_fd *ff, FILE *fp)  in print_sample_time()  argument
2204 	session = container_of(ff->ph, struct perf_session, header);  in print_sample_time()
2233 static void print_mem_topology(struct feat_fd *ff, FILE *fp)  in print_mem_topology()  argument
2235 	struct perf_env *env = &ff->ph->env;  in print_mem_topology()
2412 static int process_##__feat(struct feat_fd *ff, void *data __maybe_unused) \
2414 	free(ff->ph->env.__feat_env);		     \
2415 	ff->ph->env.__feat_env = do_read_string(ff); \
2416 	return ff->ph->env.__feat_env ? 0 : -ENOMEM; \
2427 static int process_tracing_data(struct feat_fd *ff, void *data)  in process_tracing_data()  argument
2429 	ssize_t ret = trace_report(ff->fd, data, false);  in process_tracing_data()
2435 static int process_build_id(struct feat_fd *ff, void *data __maybe_unused)  in process_build_id()  argument
2437 	if (perf_header__read_build_ids(ff->ph, ff->fd, ff->offset, ff->size))  in process_build_id()
2442 static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)  in process_nrcpus()  argument
2444 	struct perf_env *env = &ff->ph->env;  in process_nrcpus()
2448 	ret = do_read_u32(ff, &nr_cpus_avail);  in process_nrcpus()
2452 	ret = do_read_u32(ff, &nr_cpus_online);  in process_nrcpus()
2460 static int process_total_mem(struct feat_fd *ff, void *data __maybe_unused)  in process_total_mem()  argument
2462 	struct perf_env *env = &ff->ph->env;  in process_total_mem()
2466 	ret = do_read_u64(ff, &total_mem);  in process_total_mem()
2503 process_event_desc(struct feat_fd *ff, void *data __maybe_unused)  in process_event_desc()  argument
2506 	struct evsel *evsel, *events = read_event_desc(ff);  in process_event_desc()
2511 	session = container_of(ff->ph, struct perf_session, header);  in process_event_desc()
2516 		ff->events = events;  in process_event_desc()
2528 static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused)  in process_cmdline()  argument
2530 	struct perf_env *env = &ff->ph->env;  in process_cmdline()
2534 	if (do_read_u32(ff, &nr))  in process_cmdline()
2539 	cmdline = zalloc(ff->size + nr + 1);  in process_cmdline()
2548 		str = do_read_string(ff);  in process_cmdline()
2567 static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_cpu_topology()  argument
2572 	struct perf_env *env = &ff->ph->env;  in process_cpu_topology()
2580 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2589 		str = do_read_string(ff);  in process_cpu_topology()
2601 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2608 		str = do_read_string(ff);  in process_cpu_topology()
2624 	if (ff->size <= size) {  in process_cpu_topology()
2630 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2636 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2647 	if (ff->size <= size)  in process_cpu_topology()
2650 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2657 		str = do_read_string(ff);  in process_cpu_topology()
2670 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2686 static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_numa_topology()  argument
2688 	struct perf_env *env = &ff->ph->env;  in process_numa_topology()
2694 	if (do_read_u32(ff, &nr))  in process_numa_topology()
2705 		if (do_read_u32(ff, &n->node))  in process_numa_topology()
2708 		if (do_read_u64(ff, &n->mem_total))  in process_numa_topology()
2711 		if (do_read_u64(ff, &n->mem_free))  in process_numa_topology()
2714 		str = do_read_string(ff);  in process_numa_topology()
2732 static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_mappings()  argument
2734 	struct perf_env *env = &ff->ph->env;  in process_pmu_mappings()
2740 	if (do_read_u32(ff, &pmu_num))  in process_pmu_mappings()
2753 		if (do_read_u32(ff, &type))  in process_pmu_mappings()
2756 		name = do_read_string(ff);  in process_pmu_mappings()
2782 static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)  in process_group_desc()  argument
2784 	struct perf_env *env = &ff->ph->env;  in process_group_desc()
2795 	if (do_read_u32(ff, &nr_groups))  in process_group_desc()
2809 		desc[i].name = do_read_string(ff);  in process_group_desc()
2813 		if (do_read_u32(ff, &desc[i].leader_idx))  in process_group_desc()
2816 		if (do_read_u32(ff, &desc[i].nr_members))  in process_group_desc()
2823 	session = container_of(ff->ph, struct perf_session, header);  in process_group_desc()
2866 static int process_auxtrace(struct feat_fd *ff, void *data __maybe_unused)  in process_auxtrace()  argument
2871 	session = container_of(ff->ph, struct perf_session, header);  in process_auxtrace()
2873 	err = auxtrace_index__process(ff->fd, ff->size, session,  in process_auxtrace()
2874 				      ff->ph->needs_swap);  in process_auxtrace()
2880 static int process_cache(struct feat_fd *ff, void *data __maybe_unused)  in process_cache()  argument
2882 	struct perf_env *env = &ff->ph->env;  in process_cache()
2886 	if (do_read_u32(ff, &version))  in process_cache()
2892 	if (do_read_u32(ff, &cnt))  in process_cache()
2903 			if (do_read_u32(ff, &c->v))			\  in process_cache()
2913 			c->v = do_read_string(ff);		\  in process_cache()
2936 static int process_sample_time(struct feat_fd *ff, void *data __maybe_unused)  in process_sample_time()  argument
2942 	session = container_of(ff->ph, struct perf_session, header);  in process_sample_time()
2944 	ret = do_read_u64(ff, &first_sample_time);  in process_sample_time()
2948 	ret = do_read_u64(ff, &last_sample_time);  in process_sample_time()
2957 static int process_mem_topology(struct feat_fd *ff,  in process_mem_topology()  argument
2960 	struct perf_env *env = &ff->ph->env;  in process_mem_topology()
2965 	if (do_read_u64(ff, &version))  in process_mem_topology()
2971 	if (do_read_u64(ff, &bsize))  in process_mem_topology()
2974 	if (do_read_u64(ff, &nr))  in process_mem_topology()
2985 			if (do_read_u64(ff, &n.v))	\  in process_mem_topology()
2993 		if (do_read_bitmap(ff, &n.set, &n.size))  in process_mem_topology()
3010 static int process_clockid(struct feat_fd *ff,  in process_clockid()  argument
3013 	struct perf_env *env = &ff->ph->env;  in process_clockid()
3015 	if (do_read_u64(ff, &env->clock.clockid_res_ns))  in process_clockid()
3021 static int process_clock_data(struct feat_fd *ff,  in process_clock_data()  argument
3024 	struct perf_env *env = &ff->ph->env;  in process_clock_data()
3029 	if (do_read_u32(ff, &data32))  in process_clock_data()
3036 	if (do_read_u32(ff, &data32))  in process_clock_data()
3042 	if (do_read_u64(ff, &data64))  in process_clock_data()
3048 	if (do_read_u64(ff, &data64))  in process_clock_data()
3056 static int process_hybrid_topology(struct feat_fd *ff,  in process_hybrid_topology()  argument
3059 	struct perf_env *env = &ff->ph->env;  in process_hybrid_topology()
3064 	if (do_read_u32(ff, &nr))  in process_hybrid_topology()
3074 		n->pmu_name = do_read_string(ff);  in process_hybrid_topology()
3078 		n->cpus = do_read_string(ff);  in process_hybrid_topology()
3097 static int process_dir_format(struct feat_fd *ff,  in process_dir_format()  argument
3103 	session = container_of(ff->ph, struct perf_session, header);  in process_dir_format()
3109 	return do_read_u64(ff, &data->dir.version);  in process_dir_format()
3113 static int process_bpf_prog_info(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_prog_info()  argument
3116 	struct perf_env *env = &ff->ph->env;  in process_bpf_prog_info()
3121 	if (ff->ph->needs_swap) {  in process_bpf_prog_info()
3126 	if (do_read_u32(ff, &count))  in process_bpf_prog_info()
3136 		if (do_read_u32(ff, &info_len))  in process_bpf_prog_info()
3138 		if (do_read_u32(ff, &data_len))  in process_bpf_prog_info()
3152 		if (do_read_u64(ff, (u64 *)(&info_linear->arrays)))  in process_bpf_prog_info()
3154 		if (__do_read(ff, &info_linear->info, info_len))  in process_bpf_prog_info()
3160 		if (__do_read(ff, info_linear->data, data_len))  in process_bpf_prog_info()
3186 static int process_bpf_btf(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_btf()  argument
3188 	struct perf_env *env = &ff->ph->env;  in process_bpf_btf()
3193 	if (ff->ph->needs_swap) {  in process_bpf_btf()
3198 	if (do_read_u32(ff, &count))  in process_bpf_btf()
3206 		if (do_read_u32(ff, &id))  in process_bpf_btf()
3208 		if (do_read_u32(ff, &data_size))  in process_bpf_btf()
3218 		if (__do_read(ff, node->data, data_size))  in process_bpf_btf()
3234 static int process_compressed(struct feat_fd *ff,  in process_compressed()  argument
3237 	struct perf_env *env = &ff->ph->env;  in process_compressed()
3239 	if (do_read_u32(ff, &(env->comp_ver)))  in process_compressed()
3242 	if (do_read_u32(ff, &(env->comp_type)))  in process_compressed()
3245 	if (do_read_u32(ff, &(env->comp_level)))  in process_compressed()
3248 	if (do_read_u32(ff, &(env->comp_ratio)))  in process_compressed()
3251 	if (do_read_u32(ff, &(env->comp_mmap_len)))  in process_compressed()
3257 static int __process_pmu_caps(struct feat_fd *ff, int *nr_caps,  in __process_pmu_caps()  argument
3268 	if (do_read_u32(ff, &nr_pmu_caps))  in __process_pmu_caps()
3279 		name = do_read_string(ff);  in __process_pmu_caps()
3283 		value = do_read_string(ff);  in __process_pmu_caps()
3320 static int process_cpu_pmu_caps(struct feat_fd *ff,  in process_cpu_pmu_caps()  argument
3323 	struct perf_env *env = &ff->ph->env;  in process_cpu_pmu_caps()
3324 	int ret = __process_pmu_caps(ff, &env->nr_cpu_pmu_caps,  in process_cpu_pmu_caps()
3335 static int process_pmu_caps(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_caps()  argument
3337 	struct perf_env *env = &ff->ph->env;  in process_pmu_caps()
3343 	if (do_read_u32(ff, &nr_pmu))  in process_pmu_caps()
3356 		ret = __process_pmu_caps(ff, &pmu_caps[i].nr_caps,  in process_pmu_caps()
3364 		pmu_caps[i].pmu_name = do_read_string(ff);  in process_pmu_caps()
3468 	struct feat_fd ff;  in perf_file_section__fprintf_info()  local
3482 	ff = (struct  feat_fd) {  in perf_file_section__fprintf_info()
3488 		feat_ops[feat].print(&ff, hd->fp);  in perf_file_section__fprintf_info()
3538 	struct feat_fd		*ff;  member
3545 	return do_write(h->ff, buf, sz);  in feat_writer_cb()
3548 static int do_write_feat(struct feat_fd *ff, int type,  in do_write_feat()  argument
3556 	if (perf_header__has_feat(ff->ph, type)) {  in do_write_feat()
3560 		if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in do_write_feat()
3563 		(*p)->offset = lseek(ff->fd, 0, SEEK_CUR);  in do_write_feat()
3572 				.ff = ff,  in do_write_feat()
3581 			err = feat_ops[type].write(ff, evlist);  in do_write_feat()
3586 			lseek(ff->fd, (*p)->offset, SEEK_SET);  in do_write_feat()
3590 		(*p)->size = lseek(ff->fd, 0, SEEK_CUR) - (*p)->offset;  in do_write_feat()
3601 	struct feat_fd ff = {  in perf_header__adds_write()  local
3625 		if (do_write_feat(&ff, feat, &p, evlist, fc))  in perf_header__adds_write()
3634 	err = do_write(&ff, feat_sec, sec_size);  in perf_header__adds_write()
3637 	free(ff.buf); /* TODO: added to silence clang-tidy. */  in perf_header__adds_write()
3645 	struct feat_fd ff = {  in perf_header__write_pipe()  local
3655 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_header__write_pipe()
3660 	free(ff.buf);  in perf_header__write_pipe()
3673 	struct feat_fd ff = {  in perf_session__do_write_header()  local
3703 			err = do_write(&ff, evsel->core.id, evsel->core.ids * sizeof(u64));  in perf_session__do_write_header()
3730 			err = do_write(&ff, &f_attr, sizeof(f_attr));  in perf_session__do_write_header()
3772 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_session__do_write_header()
3781 	free(ff.buf);  in perf_session__do_write_header()
4356 	struct feat_fd ff = { .fd = 0 };  in perf_event__process_feature()  local
4372 	ff.buf  = (void *)fe->data;  in perf_event__process_feature()
4373 	ff.size = event->header.size - sizeof(*fe);  in perf_event__process_feature()
4374 	ff.ph = &session->header;  in perf_event__process_feature()
4376 	if (feat_ops[feat].process && feat_ops[feat].process(&ff, NULL)) {  in perf_event__process_feature()
4396 			feat_ops[feat].print(&ff, stdout);  in perf_event__process_feature()
4402 	free_event_desc(ff.events);  in perf_event__process_feature()