From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v3 09/25] trace-cmd record: Append trace options after the trace data are written
Date: Tue, 14 Sep 2021 16:14:22 +0300 [thread overview]
Message-ID: <20210914131438.3965484-10-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210914131438.3965484-1-tz.stoyanov@gmail.com>
In trace file version 7, the CPU trace metadata is saved in a trace
option. As this metadata has file offsets, which depend on the CPU trace
data, the option must be written in the file after the CPU trace data.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
tracecmd/trace-record.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 35d9ee5f..879acb7c 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -4449,6 +4449,9 @@ static void write_guest_file(struct buffer_instance *instance)
if (tracecmd_write_cpu_data(handle, cpu_count, temp_files, "") < 0)
die("failed to write CPU data");
+ if (tracecmd_get_out_file_version(handle) >= FILE_VERSION_SECTIONS)
+ tracecmd_write_options(handle);
+
tracecmd_output_close(handle);
for (i = 0; i < cpu_count; i++)
@@ -4597,7 +4600,8 @@ static void record_data(struct common_record_context *ctx)
append_buffer(handle, instance, temp_files);
}
}
-
+ if (tracecmd_get_out_file_version(handle) >= FILE_VERSION_SECTIONS)
+ tracecmd_write_options(handle);
free(temp_files);
}
if (!handle)
--
2.31.1
next prev parent reply other threads:[~2021-09-14 13:14 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 13:14 [PATCH v3 00/25] Trace file version 7 - sections Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 01/25] trace-cmd library: Define trace file version 7 Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 02/25] trace-cmd library: Add cache functionality to network message handler Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 03/25] trace-cmd library: New APIs to get and set version of output handler Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 04/25] trace-cmd library: Add internal helper function for writing headers before file sections Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 05/25] trace-cmd library: Write header " Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 06/25] trace-cmd library: Add multiple options sections in trace file version 7 Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 07/25] trace-cmd library: Do not write CPU count section in trace files " Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 08/25] trace-cmd library: Move CPU flyrecord trace metadata into the buffer option, for trace file " Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` Tzvetomir Stoyanov (VMware) [this message]
2021-09-14 13:14 ` [PATCH v3 10/25] trace-cmd library: Add section header before flyrecord trace data Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 11/25] trace-cmd library: Fit CPU latency trace data in the new trace file version 7 format Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 12/25] trace-cmd library: Do not write CPUs with empty trace data Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 13/25] trace-cmd library: Add macro to check file state on reading Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 14/25] trace-cmd library: Introduce sections in trace file reading logic Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 15/25] trace-cmd library: Initialize internal sections database on file read Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 16/25] trace-cmd library: Use sections database when reading parts of the trace file Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 17/25] trace-cmd library: Read headers from trace file version 7 Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 18/25] trace-cmd library: Read extended BUFFER option Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 19/25] trace-cmd library: Handle the extended DONE option Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 20/25] trace-cmd library: Initialize CPU data for reading from version 7 trace files Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 21/25] trace-cmd library: Handle latency trace in version 7 files Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 22/25] trace-cmd library: Handle buffer trace data init for " Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 23/25] trace-cmd report: Use the new latency API to read data Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 24/25] trace-cmd: Call additional APIs when creating trace file Tzvetomir Stoyanov (VMware)
2021-09-14 13:14 ` [PATCH v3 25/25] trace-cmd report: Add new parameter for trace file version Tzvetomir Stoyanov (VMware)
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