This patch defines the "disable" trace event state to always use the "nop"
backend.
As a side-effect, all events are now enabled (without "disable") by default, as
all backends (except "stderr") have programmatic support for dynamically
(de)activating each trace event.
In order to make this true, the "simple" backend now has a "-trace
events=<file>" argument to let the user select which events must be enabled from
the very beginning.
Signed-off-by: Lluís Vilanova <vilan...@ac.upc.edu>
---
Lluís Vilanova (6):
trace: [ust] fix generation of 'trace.c' on events without args
trace: generalize the "property" concept in the trace-events file
trace-state: always use the "nop" backend on events with the "disable"
keyword
trace-state: [simple] disable all trace points by default
trace-state: [simple] add "-trace events" argument to control initial
state
trace: enable all events
docs/tracing.txt | 12 +-
qemu-config.c | 5 +
qemu-options.hx | 18 ++
scripts/tracetool | 88 +++++-------
trace-events | 385 ++++++++++++++++++++++++++---------------------------
vl.c | 94 ++++++++-----
6 files changed, 313 insertions(+), 289 deletions(-)
