Linus,
Tracing updates for 5.8:
No new features this release. Mostly clean ups, restructuring and
documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN will
reboot the box before the error messages are printed if panic_on_warn
is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when
disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used by
other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups.
Please pull the latest trace-v5.8 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.8
Tag SHA1: a9317885fb7c4418fea2588e3fbaeaafd773b106
Head SHA1: 388d8bdb87e01bcea6d0b2bf797b5f6d7b2401fb
Cheng Jian (1):
ftrace: show debugging information when panic_on_warn set
Julia Lawall (1):
tracing/probe: reverse arguments to list_add
Masami Hiramatsu (1):
tools/bootconfig: Add a summary of test cases and return error
Mel Gorman (1):
tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option
Peter Zijlstra (1):
ftrace,bug: Improve traceoff_on_warn
Steven Rostedt (VMware) (2):
tracing/doc: Fix typos in histogram-design.rst
tracing: Add a trace print when traceoff_on_warning is triggered
Tom Zanussi (7):
tracing: Check state.disabled in synth event trace functions
tracing: Add histogram-design document
tracing: Add hist_debug trace event files for histogram debugging
tracing: Fix events.rst section numbering
tracing: Move synthetic events to a separate file
selftests/ftrace: Distinguish between hist and synthetic event checks
tracing/doc: Fix ascii-art in histogram-design.rst
----
Documentation/trace/events.rst | 28 +-
Documentation/trace/histogram-design.rst | 2115 +++++++++++++++++++
kernel/trace/Kconfig | 52 +-
kernel/trace/Makefile | 1 +
kernel/trace/ftrace.c | 8 +-
kernel/trace/trace.c | 5 +-
kernel/trace/trace.h | 1 +
kernel/trace/trace_events.c | 4 +
kernel/trace/trace_events_hist.c | 2193 +++-----------------
kernel/trace/trace_events_synth.c | 1789 ++++++++++++++++
kernel/trace/trace_probe.c | 2 +-
kernel/trace/trace_synth.h | 36 +
lib/bug.c | 3 +
tools/bootconfig/test-bootconfig.sh | 7 +
.../inter-event/trigger-field-variable-support.tc | 5 +
.../trigger-inter-event-combined-hist.tc | 5 +
.../inter-event/trigger-multi-actions-accept.tc | 5 +
.../inter-event/trigger-onmatch-action-hist.tc | 5 +
.../trigger-onmatch-onmax-action-hist.tc | 5 +
.../inter-event/trigger-onmax-action-hist.tc | 5 +
.../inter-event/trigger-snapshot-action-hist.tc | 5 +
.../inter-event/trigger-trace-action-hist.tc | 5 +
22 files changed, 4396 insertions(+), 1888 deletions(-)
create mode 100644 Documentation/trace/histogram-design.rst
create mode 100644 kernel/trace/trace_events_synth.c
create mode 100644 kernel/trace/trace_synth.h
---------------------------
