Commit Graph

2 Commits

Author SHA1 Message Date
Steven Rostedt (VMware) 4e59ab93e2 tools lib traceevent: Change to SPDX License format
Replaced COPYING with a description of how the SPDX identifiers are
used.  Added a GPL-2.0 and LGPL-2.1 license file in the new LICENSES
directory.  Then removed all the license templates from the source files
and replaced them with the corresponding SPDX identifier.

Link: http://lore.kernel.org/linux-trace-devel/20200702174950.123454-6-tz.stoyanov@gmail.com

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
[ Ported from trace-cmd.git ]
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200702185705.601167185@goodmis.org
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-06 09:02:20 -03:00
Julia Cartwright 5973e6ebc0 tools lib traceevent: Add plugin for decoding syscalls/sys_enter_futex
The futex syscall is a complicated one.  It supports thirteen
multiplexed operations, each with different semantics and encodings for
the syscalls six arguments.

Manually decoding these arguments is tedious and error prone.

This plugin provides symbolic names for futex operations, futex flags,
and tries to be intelligent about the intent of specific arguments (for
example, waking operations use 'val' as an integer count, not just an
arbitrary value).

It doesn't do a full decode of the FUTEX_WAKE_OP's 'val3' argument,
however, this is a good starting point.

Link: http://lkml.kernel.org/r/20171207025649.12160-1-julia@ni.com
Link: http://lore.kernel.org/linux-trace-devel/20200702174950.123454-3-tz.stoyanov@gmail.com

Signed-off-by: Julia Cartwright <julia@ni.com>
[ Ported from trace-cmd.git ]
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200702185705.127175788@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-06 09:01:20 -03:00