71 static int read_fd(int fd, char *dst, int len)  in read_fd()  argument
77 		r = read(fd, dst+size, len);  in read_fd()
90 static int read_compressed(int fd, char *dst, int len)  in read_compressed()  argument
96 	return read_fd(fd, dst, len);  in read_compressed()
99 static int do_lseek(int fd, int offset, int whence)  in do_lseek()  argument
104 	return lseek64(fd, offset, whence);  in do_lseek()
107 static int read_file_string(int fd, char *dst, int len)  in read_file_string()  argument
113 		r = read_compressed(fd, dst+size, 1);  in read_file_string()
128 static int read_file_bytes(int fd, char *dst, int len)  in read_file_bytes()  argument
132 	ret = read_compressed(fd, dst, len);  in read_file_bytes()
136 static void read_dump_string(int fd, int size, enum dump_items id)  in read_dump_string()  argument
143 		if (read_file_bytes(fd, buf, lsize))  in read_dump_string()
153 static int read_file_number(int fd, void *digit, int size)  in read_file_number()  argument
161 	if (read_file_bytes(fd, buf, size))  in read_file_number()
193 static void dump_initial_format(int fd)  in dump_initial_format()  argument
202 	if (read_file_bytes(fd, buf, sizeof(magic)))  in dump_initial_format()
208 	if (read_file_bytes(fd, buf, strlen(TRACING_STR)))  in dump_initial_format()
215 	if (read_file_string(fd, buf, DUMP_SIZE))  in dump_initial_format()
226 	if (read_file_bytes(fd, buf, 1))  in dump_initial_format()
234 	if (read_file_bytes(fd, buf, 1))  in dump_initial_format()
238 	if (read_file_number(fd, &val4, 4))  in dump_initial_format()
243 static void dump_compress(int fd)  in dump_compress()  argument
252 	if (read_file_string(fd, zname, DUMP_SIZE))  in dump_compress()
255 	if (read_file_string(fd, zver, DUMP_SIZE))  in dump_compress()
262 		compress = tracecmd_compress_alloc(zname, zver, fd, tep, NULL);  in dump_compress()
268 static void dump_header_page(int fd)  in dump_header_page()  argument
276 	if (read_file_bytes(fd, buf, strlen(HEAD_PAGE_STR) + 1))  in dump_header_page()
281 	if (read_file_number(fd, &size, 8))  in dump_header_page()
286 	read_dump_string(fd, size, HEAD_PAGE);  in dump_header_page()
289 static void dump_header_event(int fd)  in dump_header_event()  argument
297 	if (read_file_bytes(fd, buf, strlen(HEAD_PAGE_EVENT) + 1))  in dump_header_event()
302 	if (read_file_number(fd, &size, 8))  in dump_header_event()
307 	read_dump_string(fd, size, HEAD_EVENT);  in dump_header_event()
332 static void dump_ftrace_events_format(int fd)  in dump_ftrace_events_format()  argument
338 	if (read_file_number(fd, &count, 4))  in dump_ftrace_events_format()
344 		if (read_file_number(fd, &size, 8))  in dump_ftrace_events_format()
346 		read_dump_string(fd, size, FTRACE_FORMAT);  in dump_ftrace_events_format()
351 static void dump_events_format(int fd)  in dump_events_format()  argument
360 	if (read_file_number(fd, &systems, 4))  in dump_events_format()
367 		if (read_file_string(fd, buf, DUMP_SIZE))  in dump_events_format()
369 		if (read_file_number(fd, &events, 4))  in dump_events_format()
374 			if (read_file_number(fd, &size, 8))  in dump_events_format()
377 			read_dump_string(fd, size, EVENT_FORMAT);  in dump_events_format()
384 static void dump_kallsyms(int fd)  in dump_kallsyms()  argument
390 	if (read_file_number(fd, &size, 4))  in dump_kallsyms()
395 	read_dump_string(fd, size, KALLSYMS);  in dump_kallsyms()
398 static void dump_printk(int fd)  in dump_printk()  argument
404 	if (read_file_number(fd, &size, 4))  in dump_printk()
409 	read_dump_string(fd, size, TRACE_PRINTK);  in dump_printk()
412 static void dump_cmdlines(int fd)  in dump_cmdlines()  argument
418 	if (read_file_number(fd, &size, 8))  in dump_cmdlines()
423 	read_dump_string(fd, size, CMDLINES);  in dump_cmdlines()
426 static void dump_cpus_count(int fd)  in dump_cpus_count()  argument
428 	if (read_file_number(fd, &trace_cpus, 4))  in dump_cpus_count()
434 static void dump_option_string(int fd, int size, char *desc)  in dump_option_string()  argument
438 		read_dump_string(fd, size, OPTIONS);  in dump_option_string()
441 static void dump_section_header(int fd, enum dump_items v, unsigned short *flags)  in dump_section_header()  argument
449 	offset = lseek64(fd, 0, SEEK_CUR);  in dump_section_header()
450 	if (read_file_number(fd, &id, 2))  in dump_section_header()
453 	if (read_file_number(fd, &fl, 2))  in dump_section_header()
456 	if (read_file_number(fd, &desc_id, 4))  in dump_section_header()
463 	if (read_file_number(fd, &size, 8))  in dump_section_header()
473 static void dump_option_buffer(int fd, unsigned short option, int size)  in dump_option_buffer()  argument
490 	if (read_file_number(fd, &offset, 8))  in dump_option_buffer()
493 	if (read_file_string(fd, name, DUMP_SIZE))  in dump_option_buffer()
503 	current = lseek64(fd, 0, SEEK_CUR);  in dump_option_buffer()
504 	if (lseek64(fd, offset, SEEK_SET) == (off_t)-1)  in dump_option_buffer()
507 	dump_section_header(fd, FLYRECORD, &flags);  in dump_option_buffer()
509 	if (lseek64(fd, current, SEEK_SET) == (off_t)-1)  in dump_option_buffer()
516 	if (read_file_string(fd, clock, DUMP_SIZE))  in dump_option_buffer()
521 		if (read_file_number(fd, &page_size, 4))  in dump_option_buffer()
525 		if (read_file_number(fd, &cpus, 4))  in dump_option_buffer()
530 			if (read_file_number(fd, &id, 4))  in dump_option_buffer()
533 			if (read_file_number(fd, &offset, 8))  in dump_option_buffer()
536 			if (read_file_number(fd, &data_size, 8))  in dump_option_buffer()
552 static void dump_option_int(int fd, int size, char *desc)  in dump_option_int()  argument
557 	read_file_number(fd, &val, size);  in dump_option_int()
561 static void dump_option_xlong(int fd, int size, char *desc)  in dump_option_xlong()  argument
566 	read_file_number(fd, &val, size);  in dump_option_xlong()
578 static void dump_option_timeshift(int fd, int size)  in dump_option_timeshift()  argument
598 	read_file_number(fd, &trace_id, 8);  in dump_option_timeshift()
601 	read_file_number(fd, &flags, 4);  in dump_option_timeshift()
604 	read_file_number(fd, &cpus, 4);  in dump_option_timeshift()
613 		read_file_number(fd, &cpus_data[j].count, 4);  in dump_option_timeshift()
626 			read_file_number(fd, cpus_data[j].times + i, 8);  in dump_option_timeshift()
632 			read_file_number(fd, cpus_data[j].offsets + i, 8);  in dump_option_timeshift()
638 			read_file_number(fd, cpus_data[j].scalings + i, 8);  in dump_option_timeshift()
650 				read_file_number(fd, cpus_data[j].frac + i, 8);  in dump_option_timeshift()
676 void dump_option_guest(int fd, int size)  in dump_option_guest()  argument
697 	if (read_file_bytes(fd, buf, size))  in dump_option_guest()
735 void dump_option_tsc2nsec(int fd, int size)  in dump_option_tsc2nsec()  argument
742 	if (read_file_number(fd, &mult, 4))  in dump_option_tsc2nsec()
744 	if (read_file_number(fd, &shift, 4))  in dump_option_tsc2nsec()
746 	if (read_file_number(fd, &offset, 8))  in dump_option_tsc2nsec()
751 static void dump_option_section(int fd, unsigned int size,  in dump_option_section()  argument
764 	if (read_file_number(fd, &sec->offset, 8))  in dump_option_section()
770 static void dump_sections(int fd, int count)  in dump_sections()  argument
776 		if (lseek64(fd, sec->offset, SEEK_SET) == (off_t)-1)  in dump_sections()
779 		dump_section_header(fd, sec->verbosity, &flags);  in dump_sections()
786 			dump_header_page(fd);  in dump_sections()
787 			dump_header_event(fd);  in dump_sections()
790 			dump_ftrace_events_format(fd);  in dump_sections()
793 			dump_events_format(fd);  in dump_sections()
796 			dump_kallsyms(fd);  in dump_sections()
799 			dump_printk(fd);  in dump_sections()
802 			dump_cmdlines(fd);  in dump_sections()
811 static int dump_options_read(int fd);
813 static int dump_option_done(int fd, int size)  in dump_option_done()  argument
822 	if (read_file_number(fd, &offset, 8))  in dump_option_done()
829 	if (lseek64(fd, offset, SEEK_SET) == (off_t)-1)  in dump_option_done()
834 	return dump_options_read(fd);  in dump_option_done()
837 static int dump_options_read(int fd)  in dump_options_read()  argument
845 		dump_section_header(fd, OPTIONS, &flags);  in dump_options_read()
851 		if (read_file_number(fd, &option, 2))  in dump_options_read()
855 		if (read_file_number(fd, &size, 4))  in dump_options_read()
861 			dump_option_string(fd, size, "DATE");  in dump_options_read()
864 			dump_option_string(fd, size, "CPUSTAT");  in dump_options_read()
868 			dump_option_buffer(fd, option, size);  in dump_options_read()
872 			read_dump_string(fd, size, OPTIONS | CLOCK);  in dump_options_read()
876 			dump_option_string(fd, size, "UNAME");  in dump_options_read()
879 			dump_option_string(fd, size, "HOOK");  in dump_options_read()
882 			dump_option_string(fd, size, "OFFSET");  in dump_options_read()
885 			dump_option_int(fd, size, "CPUCOUNT");  in dump_options_read()
888 			dump_option_string(fd, size, "VERSION");  in dump_options_read()
891 			dump_option_string(fd, size, "PROCMAPS");  in dump_options_read()
894 			dump_option_xlong(fd, size, "TRACEID");  in dump_options_read()
897 			dump_option_timeshift(fd, size);  in dump_options_read()
900 			dump_option_guest(fd, size);  in dump_options_read()
903 			dump_option_tsc2nsec(fd, size);  in dump_options_read()
906 			dump_option_section(fd, size, option, "HEADERS", HEAD_PAGE | HEAD_EVENT);  in dump_options_read()
909 			dump_option_section(fd, size, option, "FTRACE EVENTS", FTRACE_FORMAT);  in dump_options_read()
912 			dump_option_section(fd, size, option,  in dump_options_read()
916 			dump_option_section(fd, size, option, "KALLSYMS", KALLSYMS);  in dump_options_read()
919 			dump_option_section(fd, size, option, "PRINTK", TRACE_PRINTK);  in dump_options_read()
922 			dump_option_section(fd, size, option, "CMDLINES", CMDLINES);  in dump_options_read()
926 			count += dump_option_done(fd, size);  in dump_options_read()
931 			do_lseek(fd, size, SEEK_CUR);  in dump_options_read()
939 static void dump_options(int fd)  in dump_options()  argument
943 	count = dump_options_read(fd);  in dump_options()
947 static void dump_latency(int fd)  in dump_latency()  argument
952 static void dump_clock(int fd)  in dump_clock()  argument
962 	if (read_file_number(fd, &size, 8))  in dump_clock()
968 	if (read_file_bytes(fd, clock, size))  in dump_clock()
975 static void dump_flyrecord(int fd)  in dump_flyrecord()  argument
984 		if (read_file_number(fd, &cpu_offset, 8))  in dump_flyrecord()
986 		if (read_file_number(fd, &cpu_size, 8))  in dump_flyrecord()
991 	dump_clock(fd);  in dump_flyrecord()
994 static void dump_therest(int fd)  in dump_therest()  argument
999 		if (read_file_bytes(fd, str, 10))  in dump_therest()
1003 			dump_options(fd);  in dump_therest()
1005 			dump_latency(fd);  in dump_therest()
1007 			dump_flyrecord(fd);  in dump_therest()
1009 			lseek64(fd, -10, SEEK_CUR);  in dump_therest()
1015 static void dump_v6_file(int fd)  in dump_v6_file()  argument
1017 	dump_header_page(fd);  in dump_v6_file()
1018 	dump_header_event(fd);  in dump_v6_file()
1019 	dump_ftrace_events_format(fd);  in dump_v6_file()
1020 	dump_events_format(fd);  in dump_v6_file()
1021 	dump_kallsyms(fd);  in dump_v6_file()
1022 	dump_printk(fd);  in dump_v6_file()
1023 	dump_cmdlines(fd);  in dump_v6_file()
1024 	dump_cpus_count(fd);  in dump_v6_file()
1025 	dump_therest(fd);  in dump_v6_file()
1028 static int read_metadata_strings(int fd, unsigned long long size)  in read_metadata_strings()  argument
1039 	ret = read_file_bytes(fd, meta_strings + meta_strings_size, size);  in read_metadata_strings()
1056 static void get_meta_strings(int fd)  in get_meta_strings()  argument
1063 	offset = lseek64(fd, 0, SEEK_CUR);  in get_meta_strings()
1065 		if (read_file_number(fd, &id, 2))  in get_meta_strings()
1067 		if (read_file_number(fd, &fl, 2))  in get_meta_strings()
1069 		if (read_file_number(fd, &desc_id, 4))  in get_meta_strings()
1071 		if (read_file_number(fd, &size, 8))  in get_meta_strings()
1075 				read_file_number(fd, &csize, 4);  in get_meta_strings()
1076 				read_file_number(fd, &rsize, 4);  in get_meta_strings()
1077 				lseek64(fd, -8, SEEK_CUR);  in get_meta_strings()
1083 			read_metadata_strings(fd, rsize);  in get_meta_strings()
1086 			if (lseek64(fd, size, SEEK_CUR) == (off_t)-1)  in get_meta_strings()
1091 	if (lseek64(fd, offset, SEEK_SET) == (off_t)-1)  in get_meta_strings()
1095 static int walk_v7_sections(int fd)  in walk_v7_sections()  argument
1105 	offset = lseek64(fd, 0, SEEK_CUR);  in walk_v7_sections()
1107 		soffset = lseek64(fd, 0, SEEK_CUR);  in walk_v7_sections()
1108 		if (read_file_number(fd, &id, 2))  in walk_v7_sections()
1111 		if (read_file_number(fd, &fl, 2))  in walk_v7_sections()
1114 		if (read_file_number(fd, &desc_id, 4))  in walk_v7_sections()
1121 		if (read_file_number(fd, &size, 8))  in walk_v7_sections()
1136 				if (read_file_number(fd, &csize, 4))  in walk_v7_sections()
1139 				if (read_file_number(fd, &rsize, 4))  in walk_v7_sections()
1152 		if (lseek64(fd, size, SEEK_CUR) == (off_t)-1)  in walk_v7_sections()
1156 	if (lseek64(fd, offset, SEEK_SET) == (off_t)-1)  in walk_v7_sections()
1162 static void dump_v7_file(int fd)  in dump_v7_file()  argument
1167 	if (read_file_number(fd, &offset, 8))  in dump_v7_file()
1170 	get_meta_strings(fd);  in dump_v7_file()
1171 	sections = walk_v7_sections(fd);  in dump_v7_file()
1173 	if (lseek64(fd, offset, SEEK_SET) == (off_t)-1)  in dump_v7_file()
1176 	dump_options(fd);  in dump_v7_file()
1177 	dump_sections(fd, sections);  in dump_v7_file()
1193 	int fd;  in dump_file()  local
1199 	fd = open(file, O_RDONLY);  in dump_file()
1200 	if (fd < 0)  in dump_file()
1205 	dump_initial_format(fd);  in dump_file()
1206 	dump_compress(fd);  in dump_file()
1208 		dump_v6_file(fd);  in dump_file()
1210 		dump_v7_file(fd);  in dump_file()
1214 	close(fd);  in dump_file()