101 static int __do_write_fd(struct feat_fd *ff, const void *buf, size_t size)  in __do_write_fd()  argument
103 	ssize_t ret = writen(ff->fd, buf, size);  in __do_write_fd()
110 static int __do_write_buf(struct feat_fd *ff,  const void *buf, size_t size)  in __do_write_buf()  argument
114 	size_t new_size = ff->size;  in __do_write_buf()
117 	if (size + ff->offset > max_size)  in __do_write_buf()
120 	while (size > (new_size - ff->offset))  in __do_write_buf()
124 	if (ff->size < new_size) {  in __do_write_buf()
125 		addr = realloc(ff->buf, new_size);  in __do_write_buf()
128 		ff->buf = addr;  in __do_write_buf()
129 		ff->size = new_size;  in __do_write_buf()
132 	memcpy(ff->buf + ff->offset, buf, size);  in __do_write_buf()
133 	ff->offset += size;  in __do_write_buf()
139 int do_write(struct feat_fd *ff, const void *buf, size_t size)  in do_write()  argument
141 	if (!ff->buf)  in do_write()
142 		return __do_write_fd(ff, buf, size);  in do_write()
143 	return __do_write_buf(ff, buf, size);  in do_write()
147 static int do_write_bitmap(struct feat_fd *ff, unsigned long *set, u64 size)  in do_write_bitmap()  argument
152 	ret = do_write(ff, &size, sizeof(size));  in do_write_bitmap()
157 		ret = do_write(ff, p + i, sizeof(*p));  in do_write_bitmap()
166 int write_padded(struct feat_fd *ff, const void *bf,  in write_padded()  argument
170 	int err = do_write(ff, bf, count);  in write_padded()
173 		err = do_write(ff, zero_buf, count_aligned - count);  in write_padded()
182 static int do_write_string(struct feat_fd *ff, const char *str)  in do_write_string()  argument
191 	ret = do_write(ff, &len, sizeof(len));  in do_write_string()
195 	return write_padded(ff, str, olen, len);  in do_write_string()
198 static int __do_read_fd(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read_fd()  argument
200 	ssize_t ret = readn(ff->fd, addr, size);  in __do_read_fd()
207 static int __do_read_buf(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read_buf()  argument
209 	if (size > (ssize_t)ff->size - ff->offset)  in __do_read_buf()
212 	memcpy(addr, ff->buf + ff->offset, size);  in __do_read_buf()
213 	ff->offset += size;  in __do_read_buf()
219 static int __do_read(struct feat_fd *ff, void *addr, ssize_t size)  in __do_read()  argument
221 	if (!ff->buf)  in __do_read()
222 		return __do_read_fd(ff, addr, size);  in __do_read()
223 	return __do_read_buf(ff, addr, size);  in __do_read()
226 static int do_read_u32(struct feat_fd *ff, u32 *addr)  in do_read_u32()  argument
230 	ret = __do_read(ff, addr, sizeof(*addr));  in do_read_u32()
234 	if (ff->ph->needs_swap)  in do_read_u32()
239 static int do_read_u64(struct feat_fd *ff, u64 *addr)  in do_read_u64()  argument
243 	ret = __do_read(ff, addr, sizeof(*addr));  in do_read_u64()
247 	if (ff->ph->needs_swap)  in do_read_u64()
252 static char *do_read_string(struct feat_fd *ff)  in do_read_string()  argument
257 	if (do_read_u32(ff, &len))  in do_read_string()
264 	if (!__do_read(ff, buf, len)) {  in do_read_string()
278 static int do_read_bitmap(struct feat_fd *ff, unsigned long **pset, u64 *psize)  in do_read_bitmap()  argument
284 	ret = do_read_u64(ff, &size);  in do_read_bitmap()
295 		ret = do_read_u64(ff, p + i);  in do_read_bitmap()
308 static int write_tracing_data(struct feat_fd *ff,  in write_tracing_data()  argument
311 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_tracing_data()
314 	return read_tracing_data(ff->fd, &evlist->core.entries);  in write_tracing_data()
318 static int write_build_id(struct feat_fd *ff,  in write_build_id()  argument
324 	session = container_of(ff->ph, struct perf_session, header);  in write_build_id()
329 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_build_id()
332 	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
568 	ret = do_write(ff, &n, sizeof(n));  in write_cmdline()
572 	ret = do_write_string(ff, buf);  in write_cmdline()
577 		ret = do_write_string(ff, perf_env.cmdline_argv[i]);  in write_cmdline()
585 static int write_cpu_topology(struct feat_fd *ff,  in write_cpu_topology()  argument
596 	ret = do_write(ff, &tp->package_cpus_lists, sizeof(tp->package_cpus_lists));  in write_cpu_topology()
601 		ret = do_write_string(ff, tp->package_cpus_list[i]);  in write_cpu_topology()
605 	ret = do_write(ff, &tp->core_cpus_lists, sizeof(tp->core_cpus_lists));  in write_cpu_topology()
610 		ret = do_write_string(ff, tp->core_cpus_list[i]);  in write_cpu_topology()
620 		ret = do_write(ff, &perf_env.cpu[j].core_id,  in write_cpu_topology()
624 		ret = do_write(ff, &perf_env.cpu[j].socket_id,  in write_cpu_topology()
633 	ret = do_write(ff, &tp->die_cpus_lists, sizeof(tp->die_cpus_lists));  in write_cpu_topology()
638 		ret = do_write_string(ff, tp->die_cpus_list[i]);  in write_cpu_topology()
644 		ret = do_write(ff, &perf_env.cpu[j].die_id,  in write_cpu_topology()
657 static int write_total_mem(struct feat_fd *ff,  in write_total_mem()  argument
678 			ret = do_write(ff, &mem, sizeof(mem));  in write_total_mem()
686 static int write_numa_topology(struct feat_fd *ff,  in write_numa_topology()  argument
697 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_numa_topology()
704 		ret = do_write(ff, &n->node, sizeof(u32));  in write_numa_topology()
708 		ret = do_write(ff, &n->mem_total, sizeof(u64));  in write_numa_topology()
712 		ret = do_write(ff, &n->mem_free, sizeof(u64));  in write_numa_topology()
716 		ret = do_write_string(ff, n->cpus);  in write_numa_topology()
740 static int write_pmu_mappings(struct feat_fd *ff,  in write_pmu_mappings()  argument
754 	ret = do_write(ff, &pmu_num, sizeof(pmu_num));  in write_pmu_mappings()
759 		ret = do_write(ff, &pmu->type, sizeof(pmu->type));  in write_pmu_mappings()
763 		ret = do_write_string(ff, pmu->name);  in write_pmu_mappings()
783 static int write_group_desc(struct feat_fd *ff,  in write_group_desc()  argument
790 	ret = do_write(ff, &nr_groups, sizeof(nr_groups));  in write_group_desc()
800 			ret = do_write_string(ff, name);  in write_group_desc()
804 			ret = do_write(ff, &leader_idx, sizeof(leader_idx));  in write_group_desc()
808 			ret = do_write(ff, &nr_members, sizeof(nr_members));  in write_group_desc()
864 static int write_cpuid(struct feat_fd *ff,  in write_cpuid()  argument
874 	return do_write_string(ff, buffer);  in write_cpuid()
877 static int write_branch_stack(struct feat_fd *ff __maybe_unused,  in write_branch_stack()
883 static int write_auxtrace(struct feat_fd *ff,  in write_auxtrace()  argument
889 	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in write_auxtrace()
892 	session = container_of(ff->ph, struct perf_session, header);  in write_auxtrace()
894 	err = auxtrace_index__write(ff->fd, &session->auxtrace_index);  in write_auxtrace()
900 static int write_clockid(struct feat_fd *ff,  in write_clockid()  argument
903 	return do_write(ff, &ff->ph->env.clock.clockid_res_ns,  in write_clockid()
904 			sizeof(ff->ph->env.clock.clockid_res_ns));  in write_clockid()
907 static int write_clock_data(struct feat_fd *ff,  in write_clock_data()  argument
917 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
922 	data32 = ff->ph->env.clock.clockid;  in write_clock_data()
924 	ret = do_write(ff, &data32, sizeof(data32));  in write_clock_data()
929 	data64 = &ff->ph->env.clock.tod_ns;  in write_clock_data()
931 	ret = do_write(ff, data64, sizeof(*data64));  in write_clock_data()
936 	data64 = &ff->ph->env.clock.clockid_ns;  in write_clock_data()
938 	return do_write(ff, data64, sizeof(*data64));  in write_clock_data()
941 static int write_hybrid_topology(struct feat_fd *ff,  in write_hybrid_topology()  argument
952 	ret = do_write(ff, &tp->nr, sizeof(u32));  in write_hybrid_topology()
959 		ret = do_write_string(ff, n->pmu_name);  in write_hybrid_topology()
963 		ret = do_write_string(ff, n->cpus);  in write_hybrid_topology()
975 static int write_dir_format(struct feat_fd *ff,  in write_dir_format()  argument
981 	session = container_of(ff->ph, struct perf_session, header);  in write_dir_format()
987 	return do_write(ff, &data->dir.version, sizeof(data->dir.version));  in write_dir_format()
1042 static int write_bpf_prog_info(struct feat_fd *ff,  in write_bpf_prog_info()  argument
1045 	struct perf_env *env = &ff->ph->env;  in write_bpf_prog_info()
1052 	ret = do_write(ff, &env->bpf_progs.infos_cnt,  in write_bpf_prog_info()
1070 		ret = do_write(ff, node->info_linear, len);  in write_bpf_prog_info()
1084 static int write_bpf_btf(struct feat_fd *ff,  in write_bpf_btf()  argument
1087 	struct perf_env *env = &ff->ph->env;  in write_bpf_btf()
1094 	ret = do_write(ff, &env->bpf_progs.btfs_cnt,  in write_bpf_btf()
1107 		ret = do_write(ff, &node->id,  in write_bpf_btf()
1266 static int write_cache(struct feat_fd *ff,  in write_cache()  argument
1280 	ret = do_write(ff, &version, sizeof(u32));  in write_cache()
1284 	ret = do_write(ff, &cnt, sizeof(u32));  in write_cache()
1292 			ret = do_write(ff, &c->v, sizeof(u32));	\  in write_cache()
1303 			ret = do_write_string(ff, (const char *) c->v);	\  in write_cache()
1319 static int write_stat(struct feat_fd *ff __maybe_unused,  in write_stat()
1325 static int write_sample_time(struct feat_fd *ff,  in write_sample_time()  argument
1330 	ret = do_write(ff, &evlist->first_sample_time,  in write_sample_time()
1335 	return do_write(ff, &evlist->last_sample_time,  in write_sample_time()
1476 static int write_mem_topology(struct feat_fd *ff __maybe_unused,  in write_mem_topology()
1492 	ret = do_write(ff, &version, sizeof(version));  in write_mem_topology()
1496 	ret = do_write(ff, &bsize, sizeof(bsize));  in write_mem_topology()
1500 	ret = do_write(ff, &nr, sizeof(nr));  in write_mem_topology()
1508 			ret = do_write(ff, &n->v, sizeof(n->v));	\  in write_mem_topology()
1517 		ret = do_write_bitmap(ff, n->set, n->size);  in write_mem_topology()
1527 static int write_compressed(struct feat_fd *ff __maybe_unused,  in write_compressed()
1532 	ret = do_write(ff, &(ff->ph->env.comp_ver), sizeof(ff->ph->env.comp_ver));  in write_compressed()
1536 	ret = do_write(ff, &(ff->ph->env.comp_type), sizeof(ff->ph->env.comp_type));  in write_compressed()
1540 	ret = do_write(ff, &(ff->ph->env.comp_level), sizeof(ff->ph->env.comp_level));  in write_compressed()
1544 	ret = do_write(ff, &(ff->ph->env.comp_ratio), sizeof(ff->ph->env.comp_ratio));  in write_compressed()
1548 	return do_write(ff, &(ff->ph->env.comp_mmap_len), sizeof(ff->ph->env.comp_mmap_len));  in write_compressed()
1551 static int __write_pmu_caps(struct feat_fd *ff, struct perf_pmu *pmu,  in __write_pmu_caps()  argument
1557 	ret = do_write(ff, &pmu->nr_caps, sizeof(pmu->nr_caps));  in __write_pmu_caps()
1562 		ret = do_write_string(ff, caps->name);  in __write_pmu_caps()
1566 		ret = do_write_string(ff, caps->value);  in __write_pmu_caps()
1572 		ret = do_write_string(ff, pmu->name);  in __write_pmu_caps()
1580 static int write_cpu_pmu_caps(struct feat_fd *ff,  in write_cpu_pmu_caps()  argument
1593 	return __write_pmu_caps(ff, cpu_pmu, false);  in write_cpu_pmu_caps()
1596 static int write_pmu_caps(struct feat_fd *ff,  in write_pmu_caps()  argument
1617 	ret = do_write(ff, &nr_pmu, sizeof(nr_pmu));  in write_pmu_caps()
1636 		ret = __write_pmu_caps(ff, pmu, true);  in write_pmu_caps()
1643 static void print_hostname(struct feat_fd *ff, FILE *fp)  in print_hostname()  argument
1645 	fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);  in print_hostname()
1648 static void print_osrelease(struct feat_fd *ff, FILE *fp)  in print_osrelease()  argument
1650 	fprintf(fp, "# os release : %s\n", ff->ph->env.os_release);  in print_osrelease()
1653 static void print_arch(struct feat_fd *ff, FILE *fp)  in print_arch()  argument
1655 	fprintf(fp, "# arch : %s\n", ff->ph->env.arch);  in print_arch()
1658 static void print_cpudesc(struct feat_fd *ff, FILE *fp)  in print_cpudesc()  argument
1660 	fprintf(fp, "# cpudesc : %s\n", ff->ph->env.cpu_desc);  in print_cpudesc()
1663 static void print_nrcpus(struct feat_fd *ff, FILE *fp)  in print_nrcpus()  argument
1665 	fprintf(fp, "# nrcpus online : %u\n", ff->ph->env.nr_cpus_online);  in print_nrcpus()
1666 	fprintf(fp, "# nrcpus avail : %u\n", ff->ph->env.nr_cpus_avail);  in print_nrcpus()
1669 static void print_version(struct feat_fd *ff, FILE *fp)  in print_version()  argument
1671 	fprintf(fp, "# perf version : %s\n", ff->ph->env.version);  in print_version()
1674 static void print_cmdline(struct feat_fd *ff, FILE *fp)  in print_cmdline()  argument
1678 	nr = ff->ph->env.nr_cmdline;  in print_cmdline()
1683 		char *argv_i = strdup(ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1685 			fprintf(fp, "%s ", ff->ph->env.cmdline_argv[i]);  in print_cmdline()
1703 static void print_cpu_topology(struct feat_fd *ff, FILE *fp)  in print_cpu_topology()  argument
1705 	struct perf_header *ph = ff->ph;  in print_cpu_topology()
1760 static void print_clockid(struct feat_fd *ff, FILE *fp)  in print_clockid()  argument
1763 		ff->ph->env.clock.clockid_res_ns * 1000);  in print_clockid()
1766 static void print_clock_data(struct feat_fd *ff, FILE *fp)  in print_clock_data()  argument
1775 	if (!ff->ph->env.clock.enabled) {  in print_clock_data()
1781 	ref = ff->ph->env.clock.tod_ns;  in print_clock_data()
1787 	ref = ff->ph->env.clock.clockid_ns;  in print_clock_data()
1792 	clockid = ff->ph->env.clock.clockid;  in print_clock_data()
1809 static void print_hybrid_topology(struct feat_fd *ff, FILE *fp)  in print_hybrid_topology()  argument
1815 	for (i = 0; i < ff->ph->env.nr_hybrid_nodes; i++) {  in print_hybrid_topology()
1816 		n = &ff->ph->env.hybrid_nodes[i];  in print_hybrid_topology()
1821 static void print_dir_format(struct feat_fd *ff, FILE *fp)  in print_dir_format()  argument
1826 	session = container_of(ff->ph, struct perf_session, header);  in print_dir_format()
1833 static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp)  in print_bpf_prog_info()  argument
1835 	struct perf_env *env = &ff->ph->env;  in print_bpf_prog_info()
1857 static void print_bpf_btf(struct feat_fd *ff, FILE *fp)  in print_bpf_btf()  argument
1859 	struct perf_env *env = &ff->ph->env;  in print_bpf_btf()
1929 static struct evsel *read_event_desc(struct feat_fd *ff)  in read_event_desc()  argument
1938 	if (do_read_u32(ff, &nre))  in read_event_desc()
1941 	if (do_read_u32(ff, &sz))  in read_event_desc()
1965 		if (__do_read(ff, buf, sz))  in read_event_desc()
1968 		if (ff->ph->needs_swap)  in read_event_desc()
1976 		if (do_read_u32(ff, &nr))  in read_event_desc()
1979 		if (ff->ph->needs_swap)  in read_event_desc()
1982 		evsel->name = do_read_string(ff);  in read_event_desc()
1996 			if (do_read_u64(ff, id))  in read_event_desc()
2016 static void print_event_desc(struct feat_fd *ff, FILE *fp)  in print_event_desc()  argument
2022 	if (ff->events)  in print_event_desc()
2023 		events = ff->events;  in print_event_desc()
2025 		events = read_event_desc(ff);  in print_event_desc()
2051 	ff->events = NULL;  in print_event_desc()
2054 static void print_total_mem(struct feat_fd *ff, FILE *fp)  in print_total_mem()  argument
2056 	fprintf(fp, "# total memory : %llu kB\n", ff->ph->env.total_mem);  in print_total_mem()
2059 static void print_numa_topology(struct feat_fd *ff, FILE *fp)  in print_numa_topology()  argument
2064 	for (i = 0; i < ff->ph->env.nr_numa_nodes; i++) {  in print_numa_topology()
2065 		n = &ff->ph->env.numa_nodes[i];  in print_numa_topology()
2076 static void print_cpuid(struct feat_fd *ff, FILE *fp)  in print_cpuid()  argument
2078 	fprintf(fp, "# cpuid : %s\n", ff->ph->env.cpuid);  in print_cpuid()
2081 static void print_branch_stack(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_branch_stack()
2086 static void print_auxtrace(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_auxtrace()
2091 static void print_stat(struct feat_fd *ff __maybe_unused, FILE *fp)  in print_stat()
2096 static void print_cache(struct feat_fd *ff, FILE *fp __maybe_unused)  in print_cache()  argument
2101 	for (i = 0; i < ff->ph->env.caches_cnt; i++) {  in print_cache()
2103 		cpu_cache_level__fprintf(fp, &ff->ph->env.caches[i]);  in print_cache()
2107 static void print_compressed(struct feat_fd *ff, FILE *fp)  in print_compressed()  argument
2110 		ff->ph->env.comp_type == PERF_COMP_ZSTD ? "Zstd" : "Unknown",  in print_compressed()
2111 		ff->ph->env.comp_level, ff->ph->env.comp_ratio);  in print_compressed()
2133 static void print_cpu_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_cpu_pmu_caps()  argument
2135 	__print_pmu_caps(fp, ff->ph->env.nr_cpu_pmu_caps,  in print_cpu_pmu_caps()
2136 			 ff->ph->env.cpu_pmu_caps, (char *)"cpu");  in print_cpu_pmu_caps()
2139 static void print_pmu_caps(struct feat_fd *ff, FILE *fp)  in print_pmu_caps()  argument
2143 	for (int i = 0; i < ff->ph->env.nr_pmus_with_caps; i++) {  in print_pmu_caps()
2144 		pmu_caps = &ff->ph->env.pmu_caps[i];  in print_pmu_caps()
2150 static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)  in print_pmu_mappings()  argument
2157 	pmu_num = ff->ph->env.nr_pmu_mappings;  in print_pmu_mappings()
2163 	str = ff->ph->env.pmu_mappings;  in print_pmu_mappings()
2186 static void print_group_desc(struct feat_fd *ff, FILE *fp)  in print_group_desc()  argument
2192 	session = container_of(ff->ph, struct perf_session, header);  in print_group_desc()
2208 static void print_sample_time(struct feat_fd *ff, FILE *fp)  in print_sample_time()  argument
2214 	session = container_of(ff->ph, struct perf_session, header);  in print_sample_time()
2243 static void print_mem_topology(struct feat_fd *ff, FILE *fp)  in print_mem_topology()  argument
2248 	nodes = ff->ph->env.memory_nodes;  in print_mem_topology()
2249 	nr    = ff->ph->env.nr_memory_nodes;  in print_mem_topology()
2252 		nr, ff->ph->env.memory_bsize);  in print_mem_topology()
2255 		memory_node__fprintf(&nodes[i], ff->ph->env.memory_bsize, fp);  in print_mem_topology()
2421 static int process_##__feat(struct feat_fd *ff, void *data __maybe_unused) \
2423 	free(ff->ph->env.__feat_env);		     \
2424 	ff->ph->env.__feat_env = do_read_string(ff); \
2425 	return ff->ph->env.__feat_env ? 0 : -ENOMEM; \
2436 static int process_tracing_data(struct feat_fd *ff, void *data)  in process_tracing_data()  argument
2438 	ssize_t ret = trace_report(ff->fd, data, false);  in process_tracing_data()
2444 static int process_build_id(struct feat_fd *ff, void *data __maybe_unused)  in process_build_id()  argument
2446 	if (perf_header__read_build_ids(ff->ph, ff->fd, ff->offset, ff->size))  in process_build_id()
2451 static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)  in process_nrcpus()  argument
2456 	ret = do_read_u32(ff, &nr_cpus_avail);  in process_nrcpus()
2460 	ret = do_read_u32(ff, &nr_cpus_online);  in process_nrcpus()
2463 	ff->ph->env.nr_cpus_avail = (int)nr_cpus_avail;  in process_nrcpus()
2464 	ff->ph->env.nr_cpus_online = (int)nr_cpus_online;  in process_nrcpus()
2468 static int process_total_mem(struct feat_fd *ff, void *data __maybe_unused)  in process_total_mem()  argument
2473 	ret = do_read_u64(ff, &total_mem);  in process_total_mem()
2476 	ff->ph->env.total_mem = (unsigned long long)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
2540 	if (do_read_u32(ff, &nr))  in process_cmdline()
2543 	ff->ph->env.nr_cmdline = nr;  in process_cmdline()
2545 	cmdline = zalloc(ff->size + nr + 1);  in process_cmdline()
2554 		str = do_read_string(ff);  in process_cmdline()
2563 	ff->ph->env.cmdline = cmdline;  in process_cmdline()
2564 	ff->ph->env.cmdline_argv = (const char **) argv;  in process_cmdline()
2573 static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_cpu_topology()  argument
2578 	int cpu_nr = ff->ph->env.nr_cpus_avail;  in process_cpu_topology()
2580 	struct perf_header *ph = ff->ph;  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()
2646 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2652 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2669 	if (ff->size <= size)  in process_cpu_topology()
2672 	if (do_read_u32(ff, &nr))  in process_cpu_topology()
2679 		str = do_read_string(ff);  in process_cpu_topology()
2692 		if (do_read_u32(ff, &nr))  in process_cpu_topology()
2707 static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)  in process_numa_topology()  argument
2714 	if (do_read_u32(ff, &nr))  in process_numa_topology()
2725 		if (do_read_u32(ff, &n->node))  in process_numa_topology()
2728 		if (do_read_u64(ff, &n->mem_total))  in process_numa_topology()
2731 		if (do_read_u64(ff, &n->mem_free))  in process_numa_topology()
2734 		str = do_read_string(ff);  in process_numa_topology()
2744 	ff->ph->env.nr_numa_nodes = nr;  in process_numa_topology()
2745 	ff->ph->env.numa_nodes = nodes;  in process_numa_topology()
2753 static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_mappings()  argument
2760 	if (do_read_u32(ff, &pmu_num))  in process_pmu_mappings()
2768 	ff->ph->env.nr_pmu_mappings = pmu_num;  in process_pmu_mappings()
2773 		if (do_read_u32(ff, &type))  in process_pmu_mappings()
2776 		name = do_read_string(ff);  in process_pmu_mappings()
2787 			ff->ph->env.msr_pmu_type = type;  in process_pmu_mappings()
2792 	ff->ph->env.pmu_mappings = strbuf_detach(&sb, NULL);  in process_pmu_mappings()
2800 static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)  in process_group_desc()  argument
2812 	if (do_read_u32(ff, &nr_groups))  in process_group_desc()
2815 	ff->ph->env.nr_groups = nr_groups;  in process_group_desc()
2826 		desc[i].name = do_read_string(ff);  in process_group_desc()
2830 		if (do_read_u32(ff, &desc[i].leader_idx))  in process_group_desc()
2833 		if (do_read_u32(ff, &desc[i].nr_members))  in process_group_desc()
2840 	session = container_of(ff->ph, struct perf_session, header);  in process_group_desc()
2883 static int process_auxtrace(struct feat_fd *ff, void *data __maybe_unused)  in process_auxtrace()  argument
2888 	session = container_of(ff->ph, struct perf_session, header);  in process_auxtrace()
2890 	err = auxtrace_index__process(ff->fd, ff->size, session,  in process_auxtrace()
2891 				      ff->ph->needs_swap);  in process_auxtrace()
2897 static int process_cache(struct feat_fd *ff, void *data __maybe_unused)  in process_cache()  argument
2902 	if (do_read_u32(ff, &version))  in process_cache()
2908 	if (do_read_u32(ff, &cnt))  in process_cache()
2919 			if (do_read_u32(ff, &c.v))\  in process_cache()
2929 			c.v = do_read_string(ff);		\  in process_cache()
2941 	ff->ph->env.caches = caches;  in process_cache()
2942 	ff->ph->env.caches_cnt = cnt;  in process_cache()
2949 static int process_sample_time(struct feat_fd *ff, void *data __maybe_unused)  in process_sample_time()  argument
2955 	session = container_of(ff->ph, struct perf_session, header);  in process_sample_time()
2957 	ret = do_read_u64(ff, &first_sample_time);  in process_sample_time()
2961 	ret = do_read_u64(ff, &last_sample_time);  in process_sample_time()
2970 static int process_mem_topology(struct feat_fd *ff,  in process_mem_topology()  argument
2977 	if (do_read_u64(ff, &version))  in process_mem_topology()
2983 	if (do_read_u64(ff, &bsize))  in process_mem_topology()
2986 	if (do_read_u64(ff, &nr))  in process_mem_topology()
2997 			if (do_read_u64(ff, &n.v))	\  in process_mem_topology()
3005 		if (do_read_bitmap(ff, &n.set, &n.size))  in process_mem_topology()
3011 	ff->ph->env.memory_bsize    = bsize;  in process_mem_topology()
3012 	ff->ph->env.memory_nodes    = nodes;  in process_mem_topology()
3013 	ff->ph->env.nr_memory_nodes = nr;  in process_mem_topology()
3022 static int process_clockid(struct feat_fd *ff,  in process_clockid()  argument
3025 	if (do_read_u64(ff, &ff->ph->env.clock.clockid_res_ns))  in process_clockid()
3031 static int process_clock_data(struct feat_fd *ff,  in process_clock_data()  argument
3038 	if (do_read_u32(ff, &data32))  in process_clock_data()
3045 	if (do_read_u32(ff, &data32))  in process_clock_data()
3048 	ff->ph->env.clock.clockid = data32;  in process_clock_data()
3051 	if (do_read_u64(ff, &data64))  in process_clock_data()
3054 	ff->ph->env.clock.tod_ns = data64;  in process_clock_data()
3057 	if (do_read_u64(ff, &data64))  in process_clock_data()
3060 	ff->ph->env.clock.clockid_ns = data64;  in process_clock_data()
3061 	ff->ph->env.clock.enabled = true;  in process_clock_data()
3065 static int process_hybrid_topology(struct feat_fd *ff,  in process_hybrid_topology()  argument
3072 	if (do_read_u32(ff, &nr))  in process_hybrid_topology()
3082 		n->pmu_name = do_read_string(ff);  in process_hybrid_topology()
3086 		n->cpus = do_read_string(ff);  in process_hybrid_topology()
3091 	ff->ph->env.nr_hybrid_nodes = nr;  in process_hybrid_topology()
3092 	ff->ph->env.hybrid_nodes = nodes;  in process_hybrid_topology()
3105 static int process_dir_format(struct feat_fd *ff,  in process_dir_format()  argument
3111 	session = container_of(ff->ph, struct perf_session, header);  in process_dir_format()
3117 	return do_read_u64(ff, &data->dir.version);  in process_dir_format()
3121 static int process_bpf_prog_info(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_prog_info()  argument
3124 	struct perf_env *env = &ff->ph->env;  in process_bpf_prog_info()
3129 	if (ff->ph->needs_swap) {  in process_bpf_prog_info()
3134 	if (do_read_u32(ff, &count))  in process_bpf_prog_info()
3144 		if (do_read_u32(ff, &info_len))  in process_bpf_prog_info()
3146 		if (do_read_u32(ff, &data_len))  in process_bpf_prog_info()
3160 		if (do_read_u64(ff, (u64 *)(&info_linear->arrays)))  in process_bpf_prog_info()
3162 		if (__do_read(ff, &info_linear->info, info_len))  in process_bpf_prog_info()
3168 		if (__do_read(ff, info_linear->data, data_len))  in process_bpf_prog_info()
3190 static int process_bpf_btf(struct feat_fd *ff, void *data __maybe_unused)  in process_bpf_btf()  argument
3192 	struct perf_env *env = &ff->ph->env;  in process_bpf_btf()
3197 	if (ff->ph->needs_swap) {  in process_bpf_btf()
3202 	if (do_read_u32(ff, &count))  in process_bpf_btf()
3210 		if (do_read_u32(ff, &id))  in process_bpf_btf()
3212 		if (do_read_u32(ff, &data_size))  in process_bpf_btf()
3222 		if (__do_read(ff, node->data, data_size))  in process_bpf_btf()
3237 static int process_compressed(struct feat_fd *ff,  in process_compressed()  argument
3240 	if (do_read_u32(ff, &(ff->ph->env.comp_ver)))  in process_compressed()
3243 	if (do_read_u32(ff, &(ff->ph->env.comp_type)))  in process_compressed()
3246 	if (do_read_u32(ff, &(ff->ph->env.comp_level)))  in process_compressed()
3249 	if (do_read_u32(ff, &(ff->ph->env.comp_ratio)))  in process_compressed()
3252 	if (do_read_u32(ff, &(ff->ph->env.comp_mmap_len)))  in process_compressed()
3258 static int __process_pmu_caps(struct feat_fd *ff, int *nr_caps,  in __process_pmu_caps()  argument
3267 	if (do_read_u32(ff, &nr_pmu_caps))  in __process_pmu_caps()
3278 		name = do_read_string(ff);  in __process_pmu_caps()
3282 		value = do_read_string(ff);  in __process_pmu_caps()
3313 static int process_cpu_pmu_caps(struct feat_fd *ff,  in process_cpu_pmu_caps()  argument
3316 	int ret = __process_pmu_caps(ff, &ff->ph->env.nr_cpu_pmu_caps,  in process_cpu_pmu_caps()
3317 				     &ff->ph->env.cpu_pmu_caps,  in process_cpu_pmu_caps()
3318 				     &ff->ph->env.max_branches);  in process_cpu_pmu_caps()
3320 	if (!ret && !ff->ph->env.cpu_pmu_caps)  in process_cpu_pmu_caps()
3325 static int process_pmu_caps(struct feat_fd *ff, void *data __maybe_unused)  in process_pmu_caps()  argument
3332 	if (do_read_u32(ff, &nr_pmu))  in process_pmu_caps()
3345 		ret = __process_pmu_caps(ff, &pmu_caps[i].nr_caps,  in process_pmu_caps()
3351 		pmu_caps[i].pmu_name = do_read_string(ff);  in process_pmu_caps()
3362 	ff->ph->env.nr_pmus_with_caps = nr_pmu;  in process_pmu_caps()
3363 	ff->ph->env.pmu_caps = pmu_caps;  in process_pmu_caps()
3455 	struct feat_fd ff;  in perf_file_section__fprintf_info()  local
3469 	ff = (struct  feat_fd) {  in perf_file_section__fprintf_info()
3475 		feat_ops[feat].print(&ff, hd->fp);  in perf_file_section__fprintf_info()
3525 	struct feat_fd		*ff;  member
3532 	return do_write(h->ff, buf, sz);  in feat_writer_cb()
3535 static int do_write_feat(struct feat_fd *ff, int type,  in do_write_feat()  argument
3543 	if (perf_header__has_feat(ff->ph, type)) {  in do_write_feat()
3547 		if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))  in do_write_feat()
3550 		(*p)->offset = lseek(ff->fd, 0, SEEK_CUR);  in do_write_feat()
3559 				.ff = ff,  in do_write_feat()
3568 			err = feat_ops[type].write(ff, evlist);  in do_write_feat()
3573 			lseek(ff->fd, (*p)->offset, SEEK_SET);  in do_write_feat()
3577 		(*p)->size = lseek(ff->fd, 0, SEEK_CUR) - (*p)->offset;  in do_write_feat()
3588 	struct feat_fd ff;  in perf_header__adds_write()  local
3595 	ff = (struct feat_fd){  in perf_header__adds_write()
3614 		if (do_write_feat(&ff, feat, &p, evlist, fc))  in perf_header__adds_write()
3623 	err = do_write(&ff, feat_sec, sec_size);  in perf_header__adds_write()
3633 	struct feat_fd ff;  in perf_header__write_pipe()  local
3636 	ff = (struct feat_fd){ .fd = fd };  in perf_header__write_pipe()
3643 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_header__write_pipe()
3661 	struct feat_fd ff;  in perf_session__do_write_header()  local
3665 	ff = (struct feat_fd){ .fd = fd};  in perf_session__do_write_header()
3670 		err = do_write(&ff, evsel->core.id, evsel->core.ids * sizeof(u64));  in perf_session__do_write_header()
3677 	attr_offset = lseek(ff.fd, 0, SEEK_CUR);  in perf_session__do_write_header()
3695 		err = do_write(&ff, &f_attr, sizeof(f_attr));  in perf_session__do_write_header()
3730 	err = do_write(&ff, &f_header, sizeof(f_header));  in perf_session__do_write_header()
4042 	struct feat_fd ff = {  in perf_file_header__read_pipe()  local
4060 	if (repipe && do_write(&ff, header, sizeof(*header)) < 0)  in perf_file_header__read_pipe()
4300 	struct feat_fd ff = { .fd = 0 };  in perf_event__process_feature()  local
4318 	ff.buf  = (void *)fe->data;  in perf_event__process_feature()
4319 	ff.size = event->header.size - sizeof(*fe);  in perf_event__process_feature()
4320 	ff.ph = &session->header;  in perf_event__process_feature()
4322 	if (feat_ops[feat].process(&ff, NULL)) {  in perf_event__process_feature()
4332 		feat_ops[feat].print(&ff, stdout);  in perf_event__process_feature()
4338 	free_event_desc(ff.events);  in perf_event__process_feature()