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 library: Bump the trace file version to 7
Date: Wed, 12 May 2021 09:38:07 +0300 [thread overview]
Message-ID: <20210512063823.324610-10-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210512063823.324610-1-tz.stoyanov@gmail.com>
Adding a compression of the trace.dat file will change its structure.
These changes are not backward compatible, the old trace-cmd binaries
will not be able to read compressed trace files. Bumping the version to
7 will prevent old trace-cmd to read such files.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
lib/trace-cmd/include/trace-cmd-local.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/trace-cmd/include/trace-cmd-local.h b/lib/trace-cmd/include/trace-cmd-local.h
index 862283fc..c8c51ff0 100644
--- a/lib/trace-cmd/include/trace-cmd-local.h
+++ b/lib/trace-cmd/include/trace-cmd-local.h
@@ -14,7 +14,7 @@ void tracecmd_warning(const char *fmt, ...);
void tracecmd_fatal(const char *fmt, ...);
/* trace.dat file format version */
-#define FILE_VERSION 6
+#define FILE_VERSION 7
#define _STR(x) #x
#define STR(x) _STR(x)
--
2.31.1
next prev parent reply other threads:[~2021-05-12 6:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 6:37 [PoC PATCH v3 00/25] Add trace file compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:37 ` [PATCH v3 01/25] trace-cmd library: Remove unused private APIs for creating trace files Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 02/25] trace-cmd library: Remove unused API tracecmd_update_option Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 03/25] trace-cmd: Check if file version is supported Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 04/25] trace-cmd library: Add new API to get file version of input handler Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 05/25] trace-cmd library: Select the file version when writing trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 06/25] trace-cmd: Add APIs for library initialization and free Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 07/25] trace-cmd library: Add support for compression algorithms Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 08/25] trace-cmd list: Show supported " Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` Tzvetomir Stoyanov (VMware) [this message]
2021-05-12 6:38 ` [PATCH v3 10/25] trace-cmd library: Compress part of the trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 11/25] trace-cmd library: Read compressed " Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 12/25] trace-cmd library: Add new API to get compression of input handler Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 13/25] trace-cmd library: Inherit compression algorithm from input file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 14/25] trace-cmd library: Extend the create file APIs to support different compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 15/25] trace-cmd record: Add new parameter --compression Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 16/25] trace-cmd dump: Add support for trace files version 7 Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 17/25] trace-cmd library: Add support for zlib compression library Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 18/25] trace-cmd library: Hide the logic for updating buffer offset Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 19/25] trace-cmd: Move buffers description outside of options Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 20/25] trace-cmd library: Track the offset in the option section in the trace file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 21/25] trace-cmd library: Add compression of the option section of " Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 22/25] trace-cmd library: Refactor the logic for writing trace data in the file Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 23/25] trace-cmd library: Add APIs for read and write compressed data in chunks Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 24/25] trace-cmd: Compress trace data Tzvetomir Stoyanov (VMware)
2021-05-12 6:38 ` [PATCH v3 25/25] trace-cmd: Read compressed " Tzvetomir Stoyanov (VMware)
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