linux_dsm_epyc7002/tools/perf/util
Frederic Weisbecker 26dd2cb074 perf tools: Provide backward compatibility with previous perf.data version
We have merged the trace.info file into perf.data by adding one
section in the perf headers. This makes it incompatible with
previous version: the new perf tools can't read the older
perf.data.

To support the previous format, we check the headers size. If they
have the same size than in the previous format, then ignore the
trace info section that doesn't exist.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1255032449-12022-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-10-08 22:11:02 +02:00
..
include perf report: Adjust column width to the values sampled 2009-07-11 10:24:11 +02:00
abspath.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
alias.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
cache.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
callchain.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
callchain.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
color.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
color.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
config.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
ctype.c perf_counter tools: Add and use isprint() 2009-06-18 09:46:00 +02:00
data_map.c perf tools: Unify perf.data mapping and events handling 2009-10-08 16:56:32 +02:00
data_map.h perf tools: Unify perf.data mapping and events handling 2009-10-08 16:56:32 +02:00
debug.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
debug.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
environment.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
event.h perf tools: Remove show_mask bitmask 2009-10-04 19:37:11 +02:00
exec_cmd.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
exec_cmd.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
generate-cmdlist.sh perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
header.c perf tools: Provide backward compatibility with previous perf.data version 2009-10-08 22:11:02 +02:00
header.h perf tools: Merge trace.info content into perf.data 2009-10-07 08:36:10 +02:00
help.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
help.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
hist.c perf tools: Move hist_entry__add common code to hist.c 2009-10-03 16:01:59 +02:00
hist.h perf tools: Move hist_entry__add common code to hist.c 2009-10-03 16:01:59 +02:00
levenshtein.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
levenshtein.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
map.c perf tools: Factorize the map helpers 2009-08-12 12:37:37 +02:00
pager.c perf_counter tools: Remove dead code 2009-06-27 06:06:39 +02:00
parse-events.c perf tools: Dont use openat() 2009-09-24 21:20:08 +02:00
parse-events.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
parse-options.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
parse-options.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
path.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
PERF-VERSION-GEN perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
quote.c perf: Fix read buffer overflow 2009-08-04 11:09:56 +02:00
quote.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
run-command.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
run-command.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
sigchain.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
sigchain.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
sort.c perf tools: Rewrite and improve support for kernel modules 2009-10-02 10:48:42 +02:00
sort.h perf tools: Rewrite and improve support for kernel modules 2009-10-02 10:48:42 +02:00
strbuf.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
strbuf.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
string.c perf tools: /proc/modules names don't always match its name 2009-10-05 20:35:23 +02:00
string.h perf tools: /proc/modules names don't always match its name 2009-10-05 20:35:23 +02:00
strlist.c strlist: Introduce strlist__entry and strlist__nr_entries methods 2009-07-11 19:20:25 +02:00
strlist.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
svghelper.c perf timechart: Add a power-only mode 2009-10-01 09:26:40 +02:00
svghelper.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
symbol.c perf tools: Improve kernel/modules symbol lookup 2009-10-08 19:27:11 +02:00
symbol.h perf tools: Create maps for modules when processing kallsyms 2009-10-05 20:35:23 +02:00
thread.c perf tools: Fix thread comm resolution in perf sched 2009-10-08 21:10:21 +02:00
thread.h perf tools: Fix thread comm resolution in perf sched 2009-10-08 21:10:21 +02:00
trace-event-info.c perf tools: Merge trace.info content into perf.data 2009-10-07 08:36:10 +02:00
trace-event-parse.c perf trace: Add string/dynamic cases to format_flags 2009-10-06 15:04:46 +02:00
trace-event-read.c perf tools: Merge trace.info content into perf.data 2009-10-07 08:36:10 +02:00
trace-event.h perf tools: Merge trace.info content into perf.data 2009-10-07 08:36:10 +02:00
types.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
usage.c perf top: Fall back to cpu-clock-tick hrtimer sampling if no cycle counter available 2009-06-07 17:31:52 +02:00
util.h Merge branch 'perfcounters/tracing' into perfcounters/core 2009-08-31 10:03:27 +02:00
values.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
values.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
wrapper.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00