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()
343 static int write_hostname(struct feat_fd *ff,  in write_hostname()  argument
353 	return do_write_string(ff, uts.nodename);  in write_hostname()
356 static int write_osrelease(struct feat_fd *ff,  in write_osrelease()  argument
366 	return do_write_string(ff, uts.release);  in write_osrelease()
369 static int write_arch(struct feat_fd *ff,  in write_arch()  argument
379 	return do_write_string(ff, uts.machine);  in write_arch()
382 static int write_version(struct feat_fd *ff,  in write_version()  argument
385 	return do_write_string(ff, perf_version_string);  in write_version()
388 static int __write_cpudesc(struct feat_fd *ff, const char *cpuinfo_proc)  in __write_cpudesc()  argument
436 	ret = do_write_string(ff, s);  in __write_cpudesc()
443 static int write_cpudesc(struct feat_fd *ff,  in write_cpudesc()  argument
471 		ret = __write_cpudesc(ff, cpuinfo_procs[i]);  in write_cpudesc()
479 static int write_nrcpus(struct feat_fd *ff,  in write_nrcpus()  argument
494 	ret = do_write(ff, &nrc, sizeof(nrc));  in write_nrcpus()
498 	return do_write(ff, &nra, sizeof(nra));  in write_nrcpus()
501 static int write_event_desc(struct feat_fd *ff,  in write_event_desc()  argument
513 	ret = do_write(ff, &nre, sizeof(nre));  in write_event_desc()
521 	ret = do_write(ff, &sz, sizeof(sz));  in write_event_desc()
526 		ret = do_write(ff, &evsel->core.attr, sz);  in write_event_desc()
537 		ret = do_write(ff, &nri, sizeof(nri));  in write_event_desc()
544 		ret = do_write_string(ff, evsel__name(evsel));  in write_event_desc()
550 		ret = do_write(ff, evsel->core.id, evsel->core.ids * sizeof(u64));  in write_event_desc()
557 static int write_cmdline(struct feat_fd *ff,  in write_cmdline()  argument
560 	struct perf_env *env = &ff->ph->env;  in write_cmdline()
570 	ret = do_write(ff, &n, sizeof(n));  in write_cmdline()
574 	ret = do_write_string(ff, buf);  in write_cmdline()
579 		ret = do_write_string(ff, env->cmdline_argv[i]);  in write_cmdline()
587 static int write_cpu_topology(struct feat_fd *ff,  in write_cpu_topology()  argument
590 	struct perf_env *env = &ff->ph->env;  in write_cpu_topology()
599 	ret = do_write(ff, &tp->package_cpus_lists, sizeof(tp->package_cpus_lists));  in write_cpu_topology()
604 		ret = do_write_string(ff, tp->package_cpus_list[i]);  in write_cpu_topology()
608 	ret = do_write(ff, &tp->core_cpus_lists, sizeof(tp->core_cpus_lists));  in write_cpu_topology()
613 		ret = do_write_string(ff, tp->core_cpus_list[i]);  in write_cpu_topology()
623 		ret = do_write(ff, &env->cpu[j].core_id,  in write_cpu_topology()
627 		ret = do_write(ff, &env->cpu[j].socket_id,  in write_cpu_topology()
636 	ret = do_write(ff, &tp->die_cpus_lists, sizeof(tp->die_cpus_lists));  in write_cpu_topology()
641 		ret = do_write_string(ff, tp->die_cpus_list[i]);  in write_cpu_topology()
647 		ret = do_write(ff, &env->cpu[j].die_id,  in write_cpu_topology()
660 static int write_total_mem(struct feat_fd *ff,  in write_total_mem()  argument
681 			ret = do_write(ff, &mem, sizeof(mem));  in write_total_mem()
689 static int write_numa_topology(struct feat_fd *ff,  in write_numa_topology()  argument
700 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_numa_topology()
707 		ret = do_write(ff, &n->node, sizeof(u32));  in write_numa_topology()
711 		ret = do_write(ff, &n->mem_total, sizeof(u64));  in write_numa_topology()
715 		ret = do_write(ff, &n->mem_free, sizeof(u64));  in write_numa_topology()
719 		ret = do_write_string(ff, n->cpus);  in write_numa_topology()
743 static int write_pmu_mappings(struct feat_fd *ff,  in write_pmu_mappings()  argument
757 	ret = do_write(ff, &pmu_num, sizeof(pmu_num));  in write_pmu_mappings()
762 		ret = do_write(ff, &pmu->type, sizeof(pmu->type));  in write_pmu_mappings()
766 		ret = do_write_string(ff, pmu->name);  in write_pmu_mappings()
786 static int write_group_desc(struct feat_fd *ff,  in write_group_desc()  argument
793 	ret = do_write(ff, &nr_groups, sizeof(nr_groups));  in write_group_desc()
803 			ret = do_write_string(ff, name);  in write_group_desc()
807 			ret = do_write(ff, &leader_idx, sizeof(leader_idx));  in write_group_desc()
811 			ret = do_write(ff, &nr_members, sizeof(nr_members));  in write_group_desc()
888 static int write_cpuid(struct feat_fd *ff, struct evlist *evlist)  in write_cpuid()  argument
898 	return do_write_string(ff, buffer);  in write_cpuid()
901 static int write_branch_stack(struct feat_fd *ff __maybe_unused,  in write_branch_stack()
907 static int write_auxtrace(struct feat_fd *ff,  in write_auxtrace()  argument
913 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_auxtrace()
916 	session = container_of(ff->ph, struct perf_session, header);  in write_auxtrace()
918 	err = auxtrace_index__write(ff->fd, &session->auxtrace_index);  in write_auxtrace()
924 static int write_clockid(struct feat_fd *ff,  in write_clockid()  argument
927 	return do_write(ff, &ff->ph->env.clock.clockid_res_ns,  in write_clockid()
928 			sizeof(ff->ph->env.clock.clockid_res_ns));  in write_clockid()
931 static int write_clock_data(struct feat_fd *ff,  in write_clock_data()  argument
941 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
946 	data32 = ff->ph->env.clock.clockid;  in write_clock_data()
948 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
953 	data64 = &ff->ph->env.clock.tod_ns;  in write_clock_data()
955 	ret = do_write(ff, data64, sizeof(*data64));  in write_clock_data()
960 	data64 = &ff->ph->env.clock.clockid_ns;  in write_clock_data()
962 	return do_write(ff, data64, sizeof(*data64));  in write_clock_data()
965 static int write_hybrid_topology(struct feat_fd *ff,  in write_hybrid_topology()  argument
976 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_hybrid_topology()
983 		ret = do_write_string(ff, n->pmu_name);  in write_hybrid_topology()
987 		ret = do_write_string(ff, n->cpus);  in write_hybrid_topology()
999 static int write_dir_format(struct feat_fd *ff,  in write_dir_format()  argument
1005 	session = container_of(ff->ph, struct perf_session, header);  in write_dir_format()
1011 	return do_write(ff, &data->dir.version, sizeof(data->dir.version));  in write_dir_format()
1015 static int write_bpf_prog_info(struct feat_fd *ff,  in write_bpf_prog_info()  argument
1018 	struct perf_env *env = &ff->ph->env;  in write_bpf_prog_info()
1028 	ret = do_write(ff, &env->bpf_progs.infos_cnt,  in write_bpf_prog_info()
1046 		ret = do_write(ff, node->info_linear, len);  in write_bpf_prog_info()
1060 static int write_bpf_btf(struct feat_fd *ff,  in write_bpf_btf()  argument
1063 	struct perf_env *env = &ff->ph->env;  in write_bpf_btf()
1073 	ret = do_write(ff, &env->bpf_progs.btfs_cnt,  in write_bpf_btf()
1086 		ret = do_write(ff, &node->id,  in write_bpf_btf()
1245 static int write_cache(struct feat_fd *ff,  in write_cache()  argument
1259 	ret = do_write(ff, &version, sizeof(u32));  in write_cache()
1263 	ret = do_write(ff, &cnt, sizeof(u32));  in write_cache()
1271 			ret = do_write(ff, &c->v, sizeof(u32));	\  in write_cache()
1282 			ret = do_write_string(ff, (const char *) c->v);	\  in write_cache()
1298 static int write_stat(struct feat_fd *ff __maybe_unused,  in write_stat()
1304 static int write_sample_time(struct feat_fd *ff,  in write_sample_time()  argument
1309 	ret = do_write(ff, &evlist->first_sample_time,  in write_sample_time()
1314 	return do_write(ff, &evlist->last_sample_time,  in write_sample_time()
1457 static int write_mem_topology(struct feat_fd *ff __maybe_unused,  in write_mem_topology()
1473 	ret = do_write(ff, &version, sizeof(version));  in write_mem_topology()
1477 	ret = do_write(ff, &bsize, sizeof(bsize));  in write_mem_topology()
1481 	ret = do_write(ff, &nr, sizeof(nr));  in write_mem_topology()
1489 			ret = do_write(ff, &n->v, sizeof(n->v));	\  in write_mem_topology()
1498 		ret = do_write_bitmap(ff, n->set, n->size);  in write_mem_topology()
1508 static int write_compressed(struct feat_fd *ff __maybe_unused,  in write_compressed()
1513 	ret = do_write(ff, &(ff->ph->env.comp_ver), sizeof(ff->ph->env.comp_ver));  in write_compressed()
1517 	ret = do_write(ff, &(ff->ph->env.comp_type), sizeof(ff->ph->env.comp_type));  in write_compressed()
1521 	ret = do_write(ff, &(ff->ph->env.comp_level), sizeof(ff->ph->env.comp_level));  in write_compressed()
1525 	ret = do_write(ff, &(ff->ph->env.comp_ratio), sizeof(ff->ph->env.comp_ratio));  in write_compressed()
1529 	return do_write(ff, &(ff->ph->env.comp_mmap_len), sizeof(ff->ph->env.comp_mmap_len));  in write_compressed()
1532 static int __write_pmu_caps(struct feat_fd *ff, struct perf_pmu *pmu,  in __write_pmu_caps()  argument
1538 	ret = do_write(ff, &pmu->nr_caps, sizeof(pmu->nr_caps));  in __write_pmu_caps()
1543 		ret = do_write_string(ff, caps->name);  in __write_pmu_caps()
1547 		ret = do_write_string(ff, caps->value);  in __write_pmu_caps()
1553 		ret = do_write_string(ff, pmu->name);  in __write_pmu_caps()
1561 static int write_cpu_pmu_caps(struct feat_fd *ff,  in write_cpu_pmu_caps()  argument
1574 	return __write_pmu_caps(ff, cpu_pmu, false);  in write_cpu_pmu_caps()
1577 static int write_pmu_caps(struct feat_fd *ff,  in write_pmu_caps()  argument
1598 	ret = do_write(ff, &nr_pmu, sizeof(nr_pmu));  in write_pmu_caps()
1617 		ret = __write_pmu_caps(ff, pmu, true);  in write_pmu_caps()
1624 static void print_hostname(struct feat_fd *ff, FILE *fp)  in print_hostname()  argument
1626 	fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);  in print_hostname()
1629 static void print_osrelease(struct feat_fd *ff, FILE *fp)  in print_osrelease()  argument
1631 	fprintf(fp, "# os release : %s\n", ff->ph->env.os_release);  in print_osrelease()
1634 static void print_arch(struct feat_fd *ff, FILE *fp)  in print_arch()  argument
1636 	fprintf(fp, "# arch : %s\n", ff->ph->env.arch);  in print_arch()
1639 static void print_cpudesc(struct feat_fd *ff, FILE *fp)  in print_cpudesc()  argument
1641 	fprintf(fp, "# cpudesc : %s\n", ff->ph->env.cpu_desc);  in print_cpudesc()
1644 static void print_nrcpus(struct feat_fd *ff, FILE *fp)  in print_nrcpus()  argument
1646 	fprintf(fp, "# nrcpus online : %u\n", ff->ph->env.nr_cpus_online);  in print_nrcpus()
1647 	fprintf(fp, "# nrcpus avail : %u\n", ff->ph->env.nr_cpus_avail);  in print_nrcpus()
1650 static void print_version(struct feat_fd *ff, FILE *fp)  in print_version()  argument
1652 	fprintf(fp, "# perf version : %s\n", ff->ph->env.version);  in print_version()
1655 static void print_cmdline(struct feat_fd *ff, FILE *fp)  in print_cmdline()  argument
1659 	nr = ff->ph->env.nr_cmdline;  in print_cmdline()
1664 		char *argv_i = strdup(ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1666 			fprintf(fp, "%s ", ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1684 static void print_cpu_topology(struct feat_fd *ff, FILE *fp)  in print_cpu_topology()  argument
1686 	struct perf_header *ph = ff->ph;  in print_cpu_topology()
1741 static void print_clockid(struct feat_fd *ff, FILE *fp)  in print_clockid()  argument
1744 		ff->ph->env.clock.clockid_res_ns * 1000);  in print_clockid()
1747 static void print_clock_data(struct feat_fd *ff, FILE *fp)  in print_clock_data()  argument
1756 	if (!ff->ph->env.clock.enabled) {  in print_clock_data()
1762 	ref = ff->ph->env.clock.tod_ns;  in print_clock_data()
1768 	ref = ff->ph->env.clock.clockid_ns;  in print_clock_data()
1773 	clockid = ff->ph->env.clock.clockid;  in print_clock_data()
1790 static void print_hybrid_topology(struct feat_fd *ff, FILE *fp)  in print_hybrid_topology()  argument
1796 	for (i = 0; i < ff->ph->env.nr_hybrid_nodes; i++) {  in print_hybrid_topology()
1797 		n = &ff->ph->env.hybrid_nodes[i];  in print_hybrid_topology()
1802 static void print_dir_format(struct feat_fd *ff, FILE *fp)  in print_dir_format()  argument
1807 	session = container_of(ff->ph, struct perf_session, header);  in print_dir_format()
1814 static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp)  in print_bpf_prog_info()  argument
1816 	struct perf_env *env = &ff->ph->env;  in print_bpf_prog_info()
1841 static void print_bpf_btf(struct feat_fd *ff, FILE *fp)  in print_bpf_btf()  argument
1843 	struct perf_env *env = &ff->ph->env;  in print_bpf_btf()
1916 static struct evsel *read_event_desc(struct feat_fd *ff)  in read_event_desc()  argument
1925 	if (do_read_u32(ff, &nre))  in read_event_desc()
1928 	if (do_read_u32(ff, &sz))  in read_event_desc()
1952 		if (__do_read(ff, buf, sz))  in read_event_desc()
1955 		if (ff->ph->needs_swap)  in read_event_desc()
1963 		if (do_read_u32(ff, &nr))  in read_event_desc()
1966 		if (ff->ph->needs_swap)  in read_event_desc()
1969 		evsel->name = do_read_string(ff);  in read_event_desc()
1983 			if (do_read_u64(ff, id))  in read_event_desc()
2003 static void print_event_desc(struct feat_fd *ff, FILE *fp)  in print_event_desc()  argument
2009 	if (ff->events)  in print_event_desc()
2010 		events = ff->events;  in print_event_desc()
2012 		events = read_event_desc(ff);  in print_event_desc()
2038 	ff->events = NULL;  in print_event_desc()
2041 static void print_total_mem(struct feat_fd *ff, FILE *fp)  in print_total_mem()  argument
2043 	fprintf(fp, "# total memory : %llu kB\n", ff->ph->env.total_mem);  in print_total_mem()
2046 static void print_numa_topology(struct feat_fd *ff, FILE *fp)  in print_numa_topology()  argument
2051 	for (i = 0; i < ff->ph->env.nr_numa_nodes; i++) {  in print_numa_topology()
2052 		n = &ff->ph->env.numa_nodes[i];  in print_numa_topology()
2063 static void print_cpuid(struct feat_fd *ff, FILE *fp)  in print_cpuid()  argument
2065 	fprintf(fp, "# cpuid : %s\n", ff->ph->env.cpuid);  in print_cpuid()
2068 static void print_branch_stack(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_branch_stack()
2073 static void print_auxtrace(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_auxtrace()
2078 static void print_stat(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_stat()
2083 static void print_cache(struct feat_fd *ff, FILE *fp __maybe_unused)  in print_cache()  argument
2088 	for (i = 0; i < ff->ph->env.caches_cnt; i++) {  in print_cache()
2090 		cpu_cache_level__fprintf(fp, &ff->ph->env.caches[i]);  in print_cache()
2094 static void print_compressed(struct feat_fd *ff, FILE *fp)  in print_compressed()  argument
2097 		ff->ph->env.comp_type == PERF_COMP_ZSTD ? "Zstd" : "Unknown",  in print_compressed()
2098 		ff->ph->env.comp_level, ff->ph->env.comp_ratio);  in print_compressed()
2120 static void print_cpu_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_cpu_pmu_caps()  argument
2122 	__print_pmu_caps(fp, ff->ph->env.nr_cpu_pmu_caps,  in print_cpu_pmu_caps()
2123 			 ff->ph->env.cpu_pmu_caps, (char *)"cpu");  in print_cpu_pmu_caps()
2126 static void print_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_pmu_caps()  argument
2128 	struct perf_env *env = &ff->ph->env;  in print_pmu_caps()
2146 static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)  in print_pmu_mappings()  argument
2148 	struct perf_env *env = &ff->ph->env;  in print_pmu_mappings()
2183 static void print_group_desc(struct feat_fd *ff, FILE *fp)  in print_group_desc()  argument
2189 	session = container_of(ff->ph, struct perf_session, header);  in print_group_desc()
2205 static void print_sample_time(struct feat_fd *ff, FILE *fp)  in print_sample_time()  argument
2211 	session = container_of(ff->ph, struct perf_session, header);  in print_sample_time()
2240 static void print_mem_topology(struct feat_fd *ff, FILE *fp)  in print_mem_topology()  argument
2242 	struct perf_env *env = &ff->ph->env;  in print_mem_topology()
2419 static int process_##__feat(struct feat_fd *ff, void *data __maybe_unused) \
2421 	free(ff->ph->env.__feat_env);		     \
2422 	ff->ph->env.__feat_env = do_read_string(ff); \
2423 	return ff->ph->env.__feat_env ? 0 : -ENOMEM; \
2434 static int process_tracing_data(struct feat_fd *ff, void *data)  in process_tracing_data()  argument
2436 	ssize_t ret = trace_report(ff->fd, data, false);  in process_tracing_data()
2442 static int process_build_id(struct feat_fd *ff, void *data __maybe_unused)  in process_build_id()  argument
2444 	if (perf_header__read_build_ids(ff->ph, ff->fd, ff->offset, ff->size))  in process_build_id()
2449 static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)  in process_nrcpus()  argument
2451 	struct perf_env *env = &ff->ph->env;  in process_nrcpus()
2455 	ret = do_read_u32(ff, &nr_cpus_avail);  in process_nrcpus()
2459 	ret = do_read_u32(ff, &nr_cpus_online);  in process_nrcpus()
2467 static int process_total_mem(struct feat_fd *ff, void *data __maybe_unused)  in process_total_mem()  argument
2469 	struct perf_env *env = &ff->ph->env;  in process_total_mem()
2473 	ret = do_read_u64(ff, &total_mem);  in process_total_mem()
2510 process_event_desc(struct feat_fd *ff, void *data __maybe_unused)  in process_event_desc()  argument
2513 	struct evsel *evsel, *events = read_event_desc(ff);  in process_event_desc()
2518 	session = container_of(ff->ph, struct perf_session, header);  in process_event_desc()
2523 		ff->events = events;  in process_event_desc()
2535 static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused)  in process_cmdline()  argument
2537 	struct perf_env *env = &ff->ph->env;  in process_cmdline()
2541 	if (do_read_u32(ff, &nr))  in process_cmdline()
2546 	cmdline = zalloc(ff->size + nr + 1);  in process_cmdline()
2555 		str = do_read_string(ff);  in process_cmdline()
2574 static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_cpu_topology()  argument
2579 	struct perf_env *env = &ff->ph->env;  in process_cpu_topology()
2587 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2596 		str = do_read_string(ff);  in process_cpu_topology()
2608 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2615 		str = do_read_string(ff);  in process_cpu_topology()
2631 	if (ff->size <= size) {  in process_cpu_topology()
2637 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2643 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2654 	if (ff->size <= size)  in process_cpu_topology()
2657 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2664 		str = do_read_string(ff);  in process_cpu_topology()
2677 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2693 static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_numa_topology()  argument
2695 	struct perf_env *env = &ff->ph->env;  in process_numa_topology()
2701 	if (do_read_u32(ff, &nr))  in process_numa_topology()
2712 		if (do_read_u32(ff, &n->node))  in process_numa_topology()
2715 		if (do_read_u64(ff, &n->mem_total))  in process_numa_topology()
2718 		if (do_read_u64(ff, &n->mem_free))  in process_numa_topology()
2721 		str = do_read_string(ff);  in process_numa_topology()
2739 static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_mappings()  argument
2741 	struct perf_env *env = &ff->ph->env;  in process_pmu_mappings()
2747 	if (do_read_u32(ff, &pmu_num))  in process_pmu_mappings()
2760 		if (do_read_u32(ff, &type))  in process_pmu_mappings()
2763 		name = do_read_string(ff);  in process_pmu_mappings()
2789 static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)  in process_group_desc()  argument
2791 	struct perf_env *env = &ff->ph->env;  in process_group_desc()
2802 	if (do_read_u32(ff, &nr_groups))  in process_group_desc()
2816 		desc[i].name = do_read_string(ff);  in process_group_desc()
2820 		if (do_read_u32(ff, &desc[i].leader_idx))  in process_group_desc()
2823 		if (do_read_u32(ff, &desc[i].nr_members))  in process_group_desc()
2830 	session = container_of(ff->ph, struct perf_session, header);  in process_group_desc()
2873 static int process_auxtrace(struct feat_fd *ff, void *data __maybe_unused)  in process_auxtrace()  argument
2878 	session = container_of(ff->ph, struct perf_session, header);  in process_auxtrace()
2880 	err = auxtrace_index__process(ff->fd, ff->size, session,  in process_auxtrace()
2881 				      ff->ph->needs_swap);  in process_auxtrace()
2887 static int process_cache(struct feat_fd *ff, void *data __maybe_unused)  in process_cache()  argument
2889 	struct perf_env *env = &ff->ph->env;  in process_cache()
2893 	if (do_read_u32(ff, &version))  in process_cache()
2899 	if (do_read_u32(ff, &cnt))  in process_cache()
2910 			if (do_read_u32(ff, &c->v))			\  in process_cache()
2920 			c->v = do_read_string(ff);		\  in process_cache()
2943 static int process_sample_time(struct feat_fd *ff, void *data __maybe_unused)  in process_sample_time()  argument
2949 	session = container_of(ff->ph, struct perf_session, header);  in process_sample_time()
2951 	ret = do_read_u64(ff, &first_sample_time);  in process_sample_time()
2955 	ret = do_read_u64(ff, &last_sample_time);  in process_sample_time()
2964 static int process_mem_topology(struct feat_fd *ff,  in process_mem_topology()  argument
2967 	struct perf_env *env = &ff->ph->env;  in process_mem_topology()
2972 	if (do_read_u64(ff, &version))  in process_mem_topology()
2978 	if (do_read_u64(ff, &bsize))  in process_mem_topology()
2981 	if (do_read_u64(ff, &nr))  in process_mem_topology()
2992 			if (do_read_u64(ff, &n.v))	\  in process_mem_topology()
3000 		if (do_read_bitmap(ff, &n.set, &n.size))  in process_mem_topology()
3017 static int process_clockid(struct feat_fd *ff,  in process_clockid()  argument
3020 	struct perf_env *env = &ff->ph->env;  in process_clockid()
3022 	if (do_read_u64(ff, &env->clock.clockid_res_ns))  in process_clockid()
3028 static int process_clock_data(struct feat_fd *ff,  in process_clock_data()  argument
3031 	struct perf_env *env = &ff->ph->env;  in process_clock_data()
3036 	if (do_read_u32(ff, &data32))  in process_clock_data()
3043 	if (do_read_u32(ff, &data32))  in process_clock_data()
3049 	if (do_read_u64(ff, &data64))  in process_clock_data()
3055 	if (do_read_u64(ff, &data64))  in process_clock_data()
3063 static int process_hybrid_topology(struct feat_fd *ff,  in process_hybrid_topology()  argument
3066 	struct perf_env *env = &ff->ph->env;  in process_hybrid_topology()
3071 	if (do_read_u32(ff, &nr))  in process_hybrid_topology()
3081 		n->pmu_name = do_read_string(ff);  in process_hybrid_topology()
3085 		n->cpus = do_read_string(ff);  in process_hybrid_topology()
3104 static int process_dir_format(struct feat_fd *ff,  in process_dir_format()  argument
3110 	session = container_of(ff->ph, struct perf_session, header);  in process_dir_format()
3116 	return do_read_u64(ff, &data->dir.version);  in process_dir_format()
3120 static int process_bpf_prog_info(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_prog_info()  argument
3123 	struct perf_env *env = &ff->ph->env;  in process_bpf_prog_info()
3128 	if (ff->ph->needs_swap) {  in process_bpf_prog_info()
3133 	if (do_read_u32(ff, &count))  in process_bpf_prog_info()
3143 		if (do_read_u32(ff, &info_len))  in process_bpf_prog_info()
3145 		if (do_read_u32(ff, &data_len))  in process_bpf_prog_info()
3159 		if (do_read_u64(ff, (u64 *)(&info_linear->arrays)))  in process_bpf_prog_info()
3161 		if (__do_read(ff, &info_linear->info, info_len))  in process_bpf_prog_info()
3167 		if (__do_read(ff, info_linear->data, data_len))  in process_bpf_prog_info()
3193 static int process_bpf_btf(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_btf()  argument
3195 	struct perf_env *env = &ff->ph->env;  in process_bpf_btf()
3200 	if (ff->ph->needs_swap) {  in process_bpf_btf()
3205 	if (do_read_u32(ff, &count))  in process_bpf_btf()
3213 		if (do_read_u32(ff, &id))  in process_bpf_btf()
3215 		if (do_read_u32(ff, &data_size))  in process_bpf_btf()
3225 		if (__do_read(ff, node->data, data_size))  in process_bpf_btf()
3241 static int process_compressed(struct feat_fd *ff,  in process_compressed()  argument
3244 	struct perf_env *env = &ff->ph->env;  in process_compressed()
3246 	if (do_read_u32(ff, &(env->comp_ver)))  in process_compressed()
3249 	if (do_read_u32(ff, &(env->comp_type)))  in process_compressed()
3252 	if (do_read_u32(ff, &(env->comp_level)))  in process_compressed()
3255 	if (do_read_u32(ff, &(env->comp_ratio)))  in process_compressed()
3258 	if (do_read_u32(ff, &(env->comp_mmap_len)))  in process_compressed()
3264 static int __process_pmu_caps(struct feat_fd *ff, int *nr_caps,  in __process_pmu_caps()  argument
3275 	if (do_read_u32(ff, &nr_pmu_caps))  in __process_pmu_caps()
3286 		name = do_read_string(ff);  in __process_pmu_caps()
3290 		value = do_read_string(ff);  in __process_pmu_caps()
3327 static int process_cpu_pmu_caps(struct feat_fd *ff,  in process_cpu_pmu_caps()  argument
3330 	struct perf_env *env = &ff->ph->env;  in process_cpu_pmu_caps()
3331 	int ret = __process_pmu_caps(ff, &env->nr_cpu_pmu_caps,  in process_cpu_pmu_caps()
3342 static int process_pmu_caps(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_caps()  argument
3344 	struct perf_env *env = &ff->ph->env;  in process_pmu_caps()
3350 	if (do_read_u32(ff, &nr_pmu))  in process_pmu_caps()
3363 		ret = __process_pmu_caps(ff, &pmu_caps[i].nr_caps,  in process_pmu_caps()
3371 		pmu_caps[i].pmu_name = do_read_string(ff);  in process_pmu_caps()
3475 	struct feat_fd ff;  in perf_file_section__fprintf_info()  local
3489 	ff = (struct  feat_fd) {  in perf_file_section__fprintf_info()
3495 		feat_ops[feat].print(&ff, hd->fp);  in perf_file_section__fprintf_info()
3545 	struct feat_fd		*ff;  member
3552 	return do_write(h->ff, buf, sz);  in feat_writer_cb()
3555 static int do_write_feat(struct feat_fd *ff, int type,  in do_write_feat()  argument
3563 	if (perf_header__has_feat(ff->ph, type)) {  in do_write_feat()
3567 		if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in do_write_feat()
3570 		(*p)->offset = lseek(ff->fd, 0, SEEK_CUR);  in do_write_feat()
3579 				.ff = ff,  in do_write_feat()
3588 			err = feat_ops[type].write(ff, evlist);  in do_write_feat()
3593 			lseek(ff->fd, (*p)->offset, SEEK_SET);  in do_write_feat()
3597 		(*p)->size = lseek(ff->fd, 0, SEEK_CUR) - (*p)->offset;  in do_write_feat()
3608 	struct feat_fd ff = {  in perf_header__adds_write()  local
3632 		if (do_write_feat(&ff, feat, &p, evlist, fc))  in perf_header__adds_write()
3641 	err = do_write(&ff, feat_sec, sec_size);  in perf_header__adds_write()
3644 	free(ff.buf); /* TODO: added to silence clang-tidy. */  in perf_header__adds_write()
3652 	struct feat_fd ff = {  in perf_header__write_pipe()  local
3662 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_header__write_pipe()
3667 	free(ff.buf);  in perf_header__write_pipe()
3680 	struct feat_fd ff = {  in perf_session__do_write_header()  local
3710 			err = do_write(&ff, evsel->core.id, evsel->core.ids * sizeof(u64));  in perf_session__do_write_header()
3737 			err = do_write(&ff, &f_attr, sizeof(f_attr));  in perf_session__do_write_header()
3779 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_session__do_write_header()
3788 	free(ff.buf);  in perf_session__do_write_header()
4363 	struct feat_fd ff = { .fd = 0 };  in perf_event__process_feature()  local
4379 	ff.buf  = (void *)fe->data;  in perf_event__process_feature()
4380 	ff.size = event->header.size - sizeof(*fe);  in perf_event__process_feature()
4381 	ff.ph = &session->header;  in perf_event__process_feature()
4383 	if (feat_ops[feat].process && feat_ops[feat].process(&ff, NULL)) {  in perf_event__process_feature()
4403 			feat_ops[feat].print(&ff, stdout);  in perf_event__process_feature()
4409 	free_event_desc(ff.events);  in perf_event__process_feature()