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perf doc: Fix documentation of the Flags section in perf.data 

According to the current documentation the flags section is placed after
the file header itself but the code assumes to find the flags section
after the data section. This change updates the documentation to that
assumption.

Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: http://lkml.kernel.org/r/20190219154515.3954-2-jonas.rabenstein@studium.uni-erlangen.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jonas Rabenstein 2019-02-19 16:45:15 +01:00 committed by Arnaldo Carvalho de Melo
parent 7a663c0ff3
commit 8c23a52238
1 changed files with 4 additions and 5 deletions
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9
tools/perf/Documentation/perf.data-file-format.txt
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@ -43,11 +43,10 @@ struct perf_file_section {
Flags section:
The header is followed by different optional headers, described by the bits set
in flags. Only headers for which the bit is set are included. Each header
consists of a perf_file_section located after the initial header.
The respective perf_file_section points to the data of the additional
header and defines its size.
For each of the optional features a perf_file_section it placed after the data
section if the feature bit is set in the perf_header flags bitset. The
respective perf_file_section points to the data of the additional header and
defines its size.
Some headers consist of strings, which are defined like this: