[Qemu-devel] [PATCH 0/6] trace: Add support for trace events grouping

[Mark Wu <wudxw@linux.vnet.ibm.com>]

This series add support for trace events grouping. The state of a given group
of trace events can be queried or changed in bulk by the following monitor
commands:

* info trace-groups
  View available trace event groups and their state.  State 1 means enabled,
  state 0 means disabled.

* trace-group NAME on|off
  Enable/disable a given trace event group.

A group of trace events can also be enabled in early running stage through
adding its group name prefixed with "group:" to trace events list file
which is passed to "-trace events".

Mark Wu (6):
  trace: Make "tracetool" generate a group list
  trace: Add HMP monitor commands for trace events group
  trace: Add trace events group implementation in the backend "simple"
  trace: Add trace events group implementation in the backend "stderr"
  trace: Enable "-trace events" argument to control initial state of
    groups
  trace: Update doc for trace events group

 docs/tracing.txt  |   29 ++++++++++++++--
 hmp-commands.hx   |   14 ++++++++
 monitor.c         |   22 ++++++++++++
 scripts/tracetool |   94 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 trace-events      |   88 +++++++++++++++++++++++++++++++++++++++++++++++++
 trace/control.c   |   17 +++++++++
 trace/control.h   |    9 +++++
 trace/default.c   |   15 ++++++++
 trace/simple.c    |   30 +++++++++++++++++
 trace/simple.h    |    7 ++++
 trace/stderr.c    |   32 ++++++++++++++++++
 trace/stderr.h    |    7 ++++
 12 files changed, 359 insertions(+), 5 deletions(-)