107 static char *do_read_string(int fd, struct perf_header *ph)  in do_read_string()  argument
117 	if (ph->needs_swap)  in do_read_string()
872 static void print_hostname(struct perf_header *ph, int fd __maybe_unused,  in print_hostname()  argument
875 	fprintf(fp, "# hostname : %s\n", ph->env.hostname);  in print_hostname()
878 static void print_osrelease(struct perf_header *ph, int fd __maybe_unused,  in print_osrelease()  argument
881 	fprintf(fp, "# os release : %s\n", ph->env.os_release);  in print_osrelease()
884 static void print_arch(struct perf_header *ph, int fd __maybe_unused, FILE *fp)  in print_arch()  argument
886 	fprintf(fp, "# arch : %s\n", ph->env.arch);  in print_arch()
889 static void print_cpudesc(struct perf_header *ph, int fd __maybe_unused,  in print_cpudesc()  argument
892 	fprintf(fp, "# cpudesc : %s\n", ph->env.cpu_desc);  in print_cpudesc()
895 static void print_nrcpus(struct perf_header *ph, int fd __maybe_unused,  in print_nrcpus()  argument
898 	fprintf(fp, "# nrcpus online : %u\n", ph->env.nr_cpus_online);  in print_nrcpus()
899 	fprintf(fp, "# nrcpus avail : %u\n", ph->env.nr_cpus_avail);  in print_nrcpus()
902 static void print_version(struct perf_header *ph, int fd __maybe_unused,  in print_version()  argument
905 	fprintf(fp, "# perf version : %s\n", ph->env.version);  in print_version()
908 static void print_cmdline(struct perf_header *ph, int fd __maybe_unused,  in print_cmdline()  argument
914 	nr = ph->env.nr_cmdline;  in print_cmdline()
915 	str = ph->env.cmdline;  in print_cmdline()
926 static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused,  in print_cpu_topology()  argument
932 	nr = ph->env.nr_sibling_cores;  in print_cpu_topology()
933 	str = ph->env.sibling_cores;  in print_cpu_topology()
940 	nr = ph->env.nr_sibling_threads;  in print_cpu_topology()
941 	str = ph->env.sibling_threads;  in print_cpu_topology()
965 read_event_desc(struct perf_header *ph, int fd)  in read_event_desc()  argument
979 	if (ph->needs_swap)  in read_event_desc()
986 	if (ph->needs_swap)  in read_event_desc()
1014 		if (ph->needs_swap)  in read_event_desc()
1023 		if (ph->needs_swap) {  in read_event_desc()
1028 		evsel->name = do_read_string(fd, ph);  in read_event_desc()
1043 			if (ph->needs_swap)  in read_event_desc()
1064 static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)  in print_event_desc()  argument
1066 	struct perf_evsel *evsel, *events = read_event_desc(ph, fd);  in print_event_desc()
1096 static void print_total_mem(struct perf_header *ph, int fd __maybe_unused,  in print_total_mem()  argument
1099 	fprintf(fp, "# total memory : %Lu kB\n", ph->env.total_mem);  in print_total_mem()
1102 static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused,  in print_numa_topology()  argument
1110 	nr = ph->env.nr_numa_nodes;  in print_numa_topology()
1111 	str = ph->env.numa_nodes;  in print_numa_topology()
1143 static void print_cpuid(struct perf_header *ph, int fd __maybe_unused, FILE *fp)  in print_cpuid()  argument
1145 	fprintf(fp, "# cpuid : %s\n", ph->env.cpuid);  in print_cpuid()
1148 static void print_branch_stack(struct perf_header *ph __maybe_unused,  in print_branch_stack()
1154 static void print_pmu_mappings(struct perf_header *ph, int fd __maybe_unused,  in print_pmu_mappings()  argument
1162 	pmu_num = ph->env.nr_pmu_mappings;  in print_pmu_mappings()
1168 	str = ph->env.pmu_mappings;  in print_pmu_mappings()
1191 static void print_group_desc(struct perf_header *ph, int fd __maybe_unused,  in print_group_desc()  argument
1198 	session = container_of(ph, struct perf_session, header);  in print_group_desc()
1367 				struct perf_header *ph __maybe_unused,  in process_tracing_data()
1375 			    struct perf_header *ph, int fd,  in process_build_id()  argument
1378 	if (perf_header__read_build_ids(ph, fd, section->offset, section->size))  in process_build_id()
1384 			    struct perf_header *ph, int fd,  in process_hostname()  argument
1387 	ph->env.hostname = do_read_string(fd, ph);  in process_hostname()
1388 	return ph->env.hostname ? 0 : -ENOMEM;  in process_hostname()
1392 			     struct perf_header *ph, int fd,  in process_osrelease()  argument
1395 	ph->env.os_release = do_read_string(fd, ph);  in process_osrelease()
1396 	return ph->env.os_release ? 0 : -ENOMEM;  in process_osrelease()
1400 			   struct perf_header *ph, int fd,  in process_version()  argument
1403 	ph->env.version = do_read_string(fd, ph);  in process_version()
1404 	return ph->env.version ? 0 : -ENOMEM;  in process_version()
1408 			struct perf_header *ph,	int fd,  in process_arch()  argument
1411 	ph->env.arch = do_read_string(fd, ph);  in process_arch()
1412 	return ph->env.arch ? 0 : -ENOMEM;  in process_arch()
1416 			  struct perf_header *ph, int fd,  in process_nrcpus()  argument
1426 	if (ph->needs_swap)  in process_nrcpus()
1429 	ph->env.nr_cpus_avail = nr;  in process_nrcpus()
1435 	if (ph->needs_swap)  in process_nrcpus()
1438 	ph->env.nr_cpus_online = nr;  in process_nrcpus()
1443 			   struct perf_header *ph, int fd,  in process_cpudesc()  argument
1446 	ph->env.cpu_desc = do_read_string(fd, ph);  in process_cpudesc()
1447 	return ph->env.cpu_desc ? 0 : -ENOMEM;  in process_cpudesc()
1451 			 struct perf_header *ph,  int fd,  in process_cpuid()  argument
1454 	ph->env.cpuid = do_read_string(fd, ph);  in process_cpuid()
1455 	return ph->env.cpuid ? 0 : -ENOMEM;  in process_cpuid()
1459 			     struct perf_header *ph, int fd,  in process_total_mem()  argument
1469 	if (ph->needs_swap)  in process_total_mem()
1472 	ph->env.total_mem = mem;  in process_total_mem()
1529 			   struct perf_header *ph, int fd,  in process_cmdline()  argument
1541 	if (ph->needs_swap)  in process_cmdline()
1544 	ph->env.nr_cmdline = nr;  in process_cmdline()
1548 		str = do_read_string(fd, ph);  in process_cmdline()
1556 	ph->env.cmdline = strbuf_detach(&sb, NULL);  in process_cmdline()
1565 				struct perf_header *ph, int fd,  in process_cpu_topology()  argument
1577 	if (ph->needs_swap)  in process_cpu_topology()
1580 	ph->env.nr_sibling_cores = nr;  in process_cpu_topology()
1584 		str = do_read_string(fd, ph);  in process_cpu_topology()
1592 	ph->env.sibling_cores = strbuf_detach(&sb, NULL);  in process_cpu_topology()
1598 	if (ph->needs_swap)  in process_cpu_topology()
1601 	ph->env.nr_sibling_threads = nr;  in process_cpu_topology()
1604 		str = do_read_string(fd, ph);  in process_cpu_topology()
1612 	ph->env.sibling_threads = strbuf_detach(&sb, NULL);  in process_cpu_topology()
1621 				 struct perf_header *ph, int fd,  in process_numa_topology()  argument
1635 	if (ph->needs_swap)  in process_numa_topology()
1638 	ph->env.nr_numa_nodes = nr;  in process_numa_topology()
1655 		if (ph->needs_swap) {  in process_numa_topology()
1664 		str = do_read_string(fd, ph);  in process_numa_topology()
1672 	ph->env.numa_nodes = strbuf_detach(&sb, NULL);  in process_numa_topology()
1681 				struct perf_header *ph, int fd,  in process_pmu_mappings()  argument
1694 	if (ph->needs_swap)  in process_pmu_mappings()
1702 	ph->env.nr_pmu_mappings = pmu_num;  in process_pmu_mappings()
1708 		if (ph->needs_swap)  in process_pmu_mappings()
1711 		name = do_read_string(fd, ph);  in process_pmu_mappings()
1722 	ph->env.pmu_mappings = strbuf_detach(&sb, NULL);  in process_pmu_mappings()
1731 			      struct perf_header *ph, int fd,  in process_group_desc()  argument
1747 	if (ph->needs_swap)  in process_group_desc()
1750 	ph->env.nr_groups = nr_groups;  in process_group_desc()
1761 		desc[i].name = do_read_string(fd, ph);  in process_group_desc()
1771 		if (ph->needs_swap) {  in process_group_desc()
1780 	session = container_of(ph, struct perf_session, header);  in process_group_desc()
1872 					   struct perf_header *ph,  in perf_file_section__fprintf_info()  argument
1890 		feat_ops[feat].print(ph, fd, hd->fp);  in perf_file_section__fprintf_info()
2090 						 struct perf_header *ph,  in perf_header__process_sections()  argument
2141 static int try_all_file_abis(uint64_t hdr_sz, struct perf_header *ph)  in try_all_file_abis()  argument
2154 			ph->needs_swap = true;  in try_all_file_abis()
2158 			 ph->needs_swap);  in try_all_file_abis()
2179 static int try_all_pipe_abis(uint64_t hdr_sz, struct perf_header *ph)  in try_all_pipe_abis()  argument
2190 			ph->needs_swap = true;  in try_all_pipe_abis()
2209 			      bool is_pipe, struct perf_header *ph)  in check_magic_endian()  argument
2216 		ph->version = PERF_HEADER_VERSION_1;  in check_magic_endian()
2219 			return try_all_pipe_abis(hdr_sz, ph);  in check_magic_endian()
2221 		return try_all_file_abis(hdr_sz, ph);  in check_magic_endian()
2228 	ph->version = PERF_HEADER_VERSION_2;  in check_magic_endian()
2238 	ph->needs_swap = true;  in check_magic_endian()
2244 			   struct perf_header *ph, int fd)  in perf_file_header__read()  argument
2255 			       header->attr_size, false, ph) < 0) {  in perf_file_header__read()
2260 	if (ph->needs_swap) {  in perf_file_header__read()
2271 	} else if (ph->needs_swap) {  in perf_file_header__read()
2306 	memcpy(&ph->adds_features, &header->adds_features,  in perf_file_header__read()
2307 	       sizeof(ph->adds_features));  in perf_file_header__read()
2309 	ph->data_offset  = header->data.offset;  in perf_file_header__read()
2310 	ph->data_size	 = header->data.size;  in perf_file_header__read()
2311 	ph->feat_offset  = header->data.offset + header->data.size;  in perf_file_header__read()
2316 				      struct perf_header *ph,  in perf_file_section__process()  argument
2333 	return feat_ops[feat].process(section, ph, fd, data);  in perf_file_section__process()
2337 				       struct perf_header *ph, int fd,  in perf_file_header__read_pipe()  argument
2346 	if (check_magic_endian(header->magic, header->size, true, ph) < 0) {  in perf_file_header__read_pipe()
2351 	if (ph->needs_swap)  in perf_file_header__read_pipe()
2375 static int read_attr(int fd, struct perf_header *ph,  in read_attr()  argument
2396 	if (ph->needs_swap)  in read_attr()