Introduce the next version of the trace-cmd trace file - 7. Major changes
since version 6 is more flexible extendable structure of the file, based on
independent sections.
Known issues:
- Only trace-cmd record and report subcommands work with trace file v7.
This patch-set depends on "[PATCH v2 00/21] trace-cmd fixes and clean-ups",
should be applied on top of it:
https://lore.kernel.org/linux-trace-devel/20210913122759.3672494-1-tz.stoyanov@xxxxxxxxx/
v2 changes:
- code cleanups
Tzvetomir Stoyanov (VMware) (25):
trace-cmd library: Define trace file version 7
trace-cmd library: Add cache functionality to network message handler
trace-cmd library: New APIs to get and set version of output handler
trace-cmd library: Add internal helper function for writing headers
before file sections
trace-cmd library: Write header before file sections
trace-cmd library: Add multiple options sections in trace file version
7
trace-cmd library: Do not write CPU count section in trace files
version 7
trace-cmd library: Move CPU flyrecord trace metadata into the buffer
option, for trace file version 7
trace-cmd record: Append trace options after the trace data are
written
trace-cmd library: Add section header before flyrecord trace data
trace-cmd library: Fit CPU latency trace data in the new trace file
version 7 format
trace-cmd library: Do not write CPUs with empty trace data
trace-cmd library: Add macro to check file state on reading
trace-cmd library: Introduce sections in trace file reading logic
trace-cmd library: Initialize internal sections database on file read
trace-cmd library: Use sections database when reading parts of the
trace file
trace-cmd library: Read headers from trace file version 7
trace-cmd library: Read extended BUFFER option
trace-cmd library: Handle the extended DONE option
trace-cmd library: Initialize CPU data for reading from version 7
trace files
trace-cmd library: Handle latency trace in version 7 files
trace-cmd library: Handle buffer trace data init for version 7 files
trace-cmd report: Use the new latency API to read data
trace-cmd: Call additional APIs when creating trace file
trace-cmd report: Add new parameter for trace file version
include/trace-cmd/trace-cmd.h | 5 +
.../include/private/trace-cmd-private.h | 27 +-
lib/trace-cmd/include/trace-cmd-local.h | 14 +-
lib/trace-cmd/trace-input.c | 766 ++++++++++++++----
lib/trace-cmd/trace-msg.c | 127 ++-
lib/trace-cmd/trace-output.c | 597 +++++++++++---
lib/trace-cmd/trace-util.c | 2 +-
tracecmd/trace-listen.c | 6 +
tracecmd/trace-read.c | 18 +-
tracecmd/trace-record.c | 36 +-
tracecmd/trace-restore.c | 3 +-
tracecmd/trace-split.c | 3 +
tracecmd/trace-usage.c | 2 +-
13 files changed, 1300 insertions(+), 306 deletions(-)
--
2.31.1
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