Commit Graph
3 Commits
Author SHA1 Message Date
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/[email protected]
Link: http://lore.kernel.org/linux-trace-devel/[email protected]

Signed-off-by: Julia Cartwright <[email protected]>
[ Ported from trace-cmd.git ]
Cc: Andrew Morton <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06 09:01:20 -03:00
Steven Rostedt (Red Hat) 3e14b100b0 tools lib traceevent: Add plugin for tlb_flush
The tlb_flush tracepoints uses enums that are not yet known by the
traceevent library. Add a plugin to handle that.

Link: http://lore.kernel.org/linux-trace-devel/[email protected]

Signed-off-by: Steven Rostedt (VMware) <[email protected]>
[ Ported from trace-cmd.git ]
Cc: Andrew Morton <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-07-06 09:00:35 -03:00
Tzvetomir Stoyanov (VMware) 077faf3dc7 libtraceevent: Move traceevent plugins in its own subdirectory
All traceevent plugins code is moved to tools/lib/traceevent/plugins
subdirectory. It makes traceevent implementation in trace-cmd and in
kernel tree consistent. There is no changes in the way libtraceevent and
plugins are compiled and installed.

Committer notes:

Applied fixup provided by Steven, fixing the tools/perf/Makefile.perf
target for the plugin dynamic list file. Problem noticed when cross
building to aarch64 from a Ubuntu 19.04 container.

Suggested-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Tzvetomir Stoyanov (VMware) <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Tzvetomir Stoyanov (VMware) <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Link: http://lore.kernel.org/linux-trace-devel/[email protected]
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2019-09-25 09:51:43 -03:00