"""
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
Parameters
----------
args :
- List of (type, name) tuples.
+ List of (type, name) tuples or Arguments objects.
"""
- self._args = args
+ self._args = []
+ for arg in args:
+ if isinstance(arg, Arguments):
+ self._args.extend(arg._args)
+ else:
+ self._args.append(arg)
def copy(self):
"""Create a new copy."""
res.append((arg_type, identifier))
return Arguments(res)
+ def __getitem__(self, index):
+ if isinstance(index, slice):
+ return Arguments(self._args[index])
+ else:
+ return self._args[index]
+
def __iter__(self):
"""Iterate over the (type, name) pairs."""
return iter(self._args)
"""List of argument types."""
return [ type_ for type_, _ in self._args ]
+ def casted(self):
+ """List of argument names casted to their type."""
+ return ["(%s)%s" % (type_, name) for type_, name in self._args]
+
def transform(self, *trans):
"""Return a new Arguments instance with transformed types.
"""
- _CRE = re.compile("((?P<props>.*)\s+)?"
- "(?P<name>[^(\s]+)"
+ _CRE = re.compile("((?P<props>[\w\s]+)\s+)?"
+ "(?P<name>\w+)"
"\((?P<args>[^)]*)\)"
"\s*"
"(?:(?:(?P<fmt_trans>\".+),)?\s*(?P<fmt>\".+))?"
"\s*")
- _VALID_PROPS = set(["disable", "tcg", "tcg-trans", "tcg-exec"])
+ _VALID_PROPS = set(["disable", "tcg", "tcg-trans", "tcg-exec", "vcpu"])
- def __init__(self, name, props, fmt, args, orig=None):
+ def __init__(self, name, props, fmt, args, orig=None,
+ event_trans=None, event_exec=None):
"""
Parameters
----------
args : Arguments
Event arguments.
orig : Event or None
- Original Event before transformation.
+ Original Event before transformation/generation.
+ event_trans : Event or None
+ Generated translation-time event ("tcg" property).
+ event_exec : Event or None
+ Generated execution-time event ("tcg" property).
"""
self.name = name
self.properties = props
self.fmt = fmt
self.args = args
+ self.event_trans = event_trans
+ self.event_exec = event_exec
if orig is None:
self.original = weakref.ref(self)
def copy(self):
"""Create a new copy."""
return Event(self.name, list(self.properties), self.fmt,
- self.args.copy(), self)
+ self.args.copy(), self, self.event_trans, self.event_exec)
@staticmethod
def build(line_str):
if "tcg" in props and isinstance(fmt, str):
raise ValueError("Events with 'tcg' property must have two formats")
- return Event(name, props, fmt, args)
+ event = Event(name, props, fmt, args)
+
+ # add implicit arguments when using the 'vcpu' property
+ import tracetool.vcpu
+ event = tracetool.vcpu.transform_event(event)
+
+ return event
def __repr__(self):
"""Evaluable string representation for this object."""
self.args,
fmt)
- _FMT = re.compile("(%\w+|%.*PRI\S+)")
+ _FMT = re.compile("(%[\d\.]*\w+|%.*PRI\S+)")
def formats(self):
"""List of argument print formats."""
QEMU_TRACE = "trace_%(name)s"
QEMU_TRACE_TCG = QEMU_TRACE + "_tcg"
+ QEMU_DSTATE = "_TRACE_%(NAME)s_DSTATE"
+ QEMU_EVENT = "_TRACE_%(NAME)s_EVENT"
def api(self, fmt=None):
if fmt is None:
fmt = Event.QEMU_TRACE
- return fmt % {"name": self.name}
+ return fmt % {"name": self.name, "NAME": self.name.upper()}
def transform(self, *trans):
"""Return a new Event with transformed Arguments."""
self)
-def _read_events(fobj):
- res = []
+def read_events(fobj):
+ """Generate the output for the given (format, backends) pair.
+
+ Parameters
+ ----------
+ fobj : file
+ Event description file.
+
+ Returns a list of Event objects
+ """
+
+ events = []
for line in fobj:
if not line.strip():
continue
if line.lstrip().startswith('#'):
continue
- res.append(Event.build(line))
- return res
+
+ event = Event.build(line)
+
+ # transform TCG-enabled events
+ if "tcg" not in event.properties:
+ events.append(event)
+ else:
+ event_trans = event.copy()
+ event_trans.name += "_trans"
+ event_trans.properties += ["tcg-trans"]
+ event_trans.fmt = event.fmt[0]
+ # ignore TCG arguments
+ args_trans = []
+ for atrans, aorig in zip(
+ event_trans.transform(tracetool.transform.TCG_2_HOST).args,
+ event.args):
+ if atrans == aorig:
+ args_trans.append(atrans)
+ event_trans.args = Arguments(args_trans)
+
+ event_exec = event.copy()
+ event_exec.name += "_exec"
+ event_exec.properties += ["tcg-exec"]
+ event_exec.fmt = event.fmt[1]
+ event_exec.args = event_exec.args.transform(tracetool.transform.TCG_2_HOST)
+
+ new_event = [event_trans, event_exec]
+ event.event_trans, event.event_exec = new_event
+
+ events.extend(new_event)
+
+ return events
class TracetoolError (Exception):
tracetool.backend.dtrace.BINARY = binary
tracetool.backend.dtrace.PROBEPREFIX = probe_prefix
- events = _read_events(fevents)
-
- # transform TCG-enabled events
- new_events = []
- for event in events:
- if "tcg" not in event.properties:
- new_events.append(event)
- else:
- event_trans = event.copy()
- event_trans.name += "_trans"
- event_trans.properties += ["tcg-trans"]
- event_trans.fmt = event.fmt[0]
- args_trans = []
- for atrans, aorig in zip(
- event_trans.transform(tracetool.transform.TCG_2_HOST).args,
- event.args):
- if atrans == aorig:
- args_trans.append(atrans)
- event_trans.args = Arguments(args_trans)
- event_trans = event_trans.copy()
-
- event_exec = event.copy()
- event_exec.name += "_exec"
- event_exec.properties += ["tcg-exec"]
- event_exec.fmt = event.fmt[1]
- event_exec = event_exec.transform(tracetool.transform.TCG_2_HOST)
-
- new_event = [event_trans, event_exec]
- event.event_trans, event.event_exec = new_event
-
- new_events.extend(new_event)
- events = new_events
+ events = read_events(fevents)
tracetool.format.generate(events, format, backend)
projects / qemu.git / blobdiff