From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/scripts/tracetool/__init__.py | 366 +++++++++++++++++++++ qemu/scripts/tracetool/backend/__init__.py | 123 +++++++ qemu/scripts/tracetool/backend/dtrace.py | 46 +++ qemu/scripts/tracetool/backend/ftrace.py | 48 +++ qemu/scripts/tracetool/backend/simple.py | 99 ++++++ qemu/scripts/tracetool/backend/stderr.py | 47 +++ qemu/scripts/tracetool/backend/ust.py | 35 ++ qemu/scripts/tracetool/format/__init__.py | 85 +++++ qemu/scripts/tracetool/format/c.py | 28 ++ qemu/scripts/tracetool/format/d.py | 54 +++ qemu/scripts/tracetool/format/events_c.py | 36 ++ qemu/scripts/tracetool/format/events_h.py | 52 +++ qemu/scripts/tracetool/format/h.py | 44 +++ qemu/scripts/tracetool/format/simpletrace_stap.py | 71 ++++ qemu/scripts/tracetool/format/stap.py | 61 ++++ qemu/scripts/tracetool/format/tcg_h.py | 57 ++++ qemu/scripts/tracetool/format/tcg_helper_c.py | 50 +++ qemu/scripts/tracetool/format/tcg_helper_h.py | 50 +++ .../tracetool/format/tcg_helper_wrapper_h.py | 70 ++++ qemu/scripts/tracetool/format/ust_events_c.py | 33 ++ qemu/scripts/tracetool/format/ust_events_h.py | 100 ++++++ qemu/scripts/tracetool/transform.py | 166 ++++++++++ 22 files changed, 1721 insertions(+) create mode 100644 qemu/scripts/tracetool/__init__.py create mode 100644 qemu/scripts/tracetool/backend/__init__.py create mode 100644 qemu/scripts/tracetool/backend/dtrace.py create mode 100644 qemu/scripts/tracetool/backend/ftrace.py create mode 100644 qemu/scripts/tracetool/backend/simple.py create mode 100644 qemu/scripts/tracetool/backend/stderr.py create mode 100644 qemu/scripts/tracetool/backend/ust.py create mode 100644 qemu/scripts/tracetool/format/__init__.py create mode 100644 qemu/scripts/tracetool/format/c.py create mode 100644 qemu/scripts/tracetool/format/d.py create mode 100644 qemu/scripts/tracetool/format/events_c.py create mode 100644 qemu/scripts/tracetool/format/events_h.py create mode 100644 qemu/scripts/tracetool/format/h.py create mode 100644 qemu/scripts/tracetool/format/simpletrace_stap.py create mode 100644 qemu/scripts/tracetool/format/stap.py create mode 100644 qemu/scripts/tracetool/format/tcg_h.py create mode 100644 qemu/scripts/tracetool/format/tcg_helper_c.py create mode 100644 qemu/scripts/tracetool/format/tcg_helper_h.py create mode 100644 qemu/scripts/tracetool/format/tcg_helper_wrapper_h.py create mode 100644 qemu/scripts/tracetool/format/ust_events_c.py create mode 100644 qemu/scripts/tracetool/format/ust_events_h.py create mode 100644 qemu/scripts/tracetool/transform.py (limited to 'qemu/scripts/tracetool') diff --git a/qemu/scripts/tracetool/__init__.py b/qemu/scripts/tracetool/__init__.py new file mode 100644 index 000000000..181675f00 --- /dev/null +++ b/qemu/scripts/tracetool/__init__.py @@ -0,0 +1,366 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Machinery for generating tracing-related intermediate files. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +import re +import sys +import weakref + +import tracetool.format +import tracetool.backend +import tracetool.transform + + +def error_write(*lines): + """Write a set of error lines.""" + sys.stderr.writelines("\n".join(lines) + "\n") + +def error(*lines): + """Write a set of error lines and exit.""" + error_write(*lines) + sys.exit(1) + + +def out(*lines, **kwargs): + """Write a set of output lines. + + You can use kwargs as a shorthand for mapping variables when formating all + the strings in lines. + """ + lines = [ l % kwargs for l in lines ] + sys.stdout.writelines("\n".join(lines) + "\n") + + +class Arguments: + """Event arguments description.""" + + def __init__(self, args): + """ + Parameters + ---------- + args : + List of (type, name) tuples. + """ + self._args = args + + def copy(self): + """Create a new copy.""" + return Arguments(list(self._args)) + + @staticmethod + def build(arg_str): + """Build and Arguments instance from an argument string. + + Parameters + ---------- + arg_str : str + String describing the event arguments. + """ + res = [] + for arg in arg_str.split(","): + arg = arg.strip() + if arg == 'void': + continue + + if '*' in arg: + arg_type, identifier = arg.rsplit('*', 1) + arg_type += '*' + identifier = identifier.strip() + else: + arg_type, identifier = arg.rsplit(None, 1) + + res.append((arg_type, identifier)) + return Arguments(res) + + def __iter__(self): + """Iterate over the (type, name) pairs.""" + return iter(self._args) + + def __len__(self): + """Number of arguments.""" + return len(self._args) + + def __str__(self): + """String suitable for declaring function arguments.""" + if len(self._args) == 0: + return "void" + else: + return ", ".join([ " ".join([t, n]) for t,n in self._args ]) + + def __repr__(self): + """Evaluable string representation for this object.""" + return "Arguments(\"%s\")" % str(self) + + def names(self): + """List of argument names.""" + return [ name for _, name in self._args ] + + def types(self): + """List of argument types.""" + return [ type_ for type_, _ in self._args ] + + def transform(self, *trans): + """Return a new Arguments instance with transformed types. + + The types in the resulting Arguments instance are transformed according + to tracetool.transform.transform_type. + """ + res = [] + for type_, name in self._args: + res.append((tracetool.transform.transform_type(type_, *trans), + name)) + return Arguments(res) + + +class Event(object): + """Event description. + + Attributes + ---------- + name : str + The event name. + fmt : str + The event format string. + properties : set(str) + Properties of the event. + args : Arguments + The event arguments. + + """ + + _CRE = re.compile("((?P[\w\s]+)\s+)?" + "(?P\w+)" + "\((?P[^)]*)\)" + "\s*" + "(?:(?:(?P\".+),)?\s*(?P\".+))?" + "\s*") + + _VALID_PROPS = set(["disable", "tcg", "tcg-trans", "tcg-exec"]) + + def __init__(self, name, props, fmt, args, orig=None): + """ + Parameters + ---------- + name : string + Event name. + props : list of str + Property names. + fmt : str, list of str + Event printing format (or formats). + args : Arguments + Event arguments. + orig : Event or None + Original Event before transformation. + + """ + self.name = name + self.properties = props + self.fmt = fmt + self.args = args + + if orig is None: + self.original = weakref.ref(self) + else: + self.original = orig + + unknown_props = set(self.properties) - self._VALID_PROPS + if len(unknown_props) > 0: + raise ValueError("Unknown properties: %s" + % ", ".join(unknown_props)) + assert isinstance(self.fmt, str) or len(self.fmt) == 2 + + def copy(self): + """Create a new copy.""" + return Event(self.name, list(self.properties), self.fmt, + self.args.copy(), self) + + @staticmethod + def build(line_str): + """Build an Event instance from a string. + + Parameters + ---------- + line_str : str + Line describing the event. + """ + m = Event._CRE.match(line_str) + assert m is not None + groups = m.groupdict('') + + name = groups["name"] + props = groups["props"].split() + fmt = groups["fmt"] + fmt_trans = groups["fmt_trans"] + if len(fmt_trans) > 0: + fmt = [fmt_trans, fmt] + args = Arguments.build(groups["args"]) + + if "tcg-trans" in props: + raise ValueError("Invalid property 'tcg-trans'") + if "tcg-exec" in props: + raise ValueError("Invalid property 'tcg-exec'") + if "tcg" not in props and not isinstance(fmt, str): + raise ValueError("Only events with 'tcg' property can have two formats") + if "tcg" in props and isinstance(fmt, str): + raise ValueError("Events with 'tcg' property must have two formats") + + return Event(name, props, fmt, args) + + def __repr__(self): + """Evaluable string representation for this object.""" + if isinstance(self.fmt, str): + fmt = self.fmt + else: + fmt = "%s, %s" % (self.fmt[0], self.fmt[1]) + return "Event('%s %s(%s) %s')" % (" ".join(self.properties), + self.name, + self.args, + fmt) + + _FMT = re.compile("(%[\d\.]*\w+|%.*PRI\S+)") + + def formats(self): + """List of argument print formats.""" + assert not isinstance(self.fmt, list) + return self._FMT.findall(self.fmt) + + QEMU_TRACE = "trace_%(name)s" + QEMU_TRACE_TCG = QEMU_TRACE + "_tcg" + + def api(self, fmt=None): + if fmt is None: + fmt = Event.QEMU_TRACE + return fmt % {"name": self.name} + + def transform(self, *trans): + """Return a new Event with transformed Arguments.""" + return Event(self.name, + list(self.properties), + self.fmt, + self.args.transform(*trans), + self) + + +def _read_events(fobj): + events = [] + for line in fobj: + if not line.strip(): + continue + if line.lstrip().startswith('#'): + continue + + 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] + 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 + + events.extend(new_event) + + return events + + +class TracetoolError (Exception): + """Exception for calls to generate.""" + pass + + +def try_import(mod_name, attr_name=None, attr_default=None): + """Try to import a module and get an attribute from it. + + Parameters + ---------- + mod_name : str + Module name. + attr_name : str, optional + Name of an attribute in the module. + attr_default : optional + Default value if the attribute does not exist in the module. + + Returns + ------- + A pair indicating whether the module could be imported and the module or + object or attribute value. + """ + try: + module = __import__(mod_name, globals(), locals(), ["__package__"]) + if attr_name is None: + return True, module + return True, getattr(module, str(attr_name), attr_default) + except ImportError: + return False, None + + +def generate(fevents, format, backends, + binary=None, probe_prefix=None): + """Generate the output for the given (format, backends) pair. + + Parameters + ---------- + fevents : file + Event description file. + format : str + Output format name. + backends : list + Output backend names. + binary : str or None + See tracetool.backend.dtrace.BINARY. + probe_prefix : str or None + See tracetool.backend.dtrace.PROBEPREFIX. + """ + # fix strange python error (UnboundLocalError tracetool) + import tracetool + + format = str(format) + if len(format) is 0: + raise TracetoolError("format not set") + if not tracetool.format.exists(format): + raise TracetoolError("unknown format: %s" % format) + + if len(backends) is 0: + raise TracetoolError("no backends specified") + for backend in backends: + if not tracetool.backend.exists(backend): + raise TracetoolError("unknown backend: %s" % backend) + backend = tracetool.backend.Wrapper(backends, format) + + import tracetool.backend.dtrace + tracetool.backend.dtrace.BINARY = binary + tracetool.backend.dtrace.PROBEPREFIX = probe_prefix + + events = _read_events(fevents) + + tracetool.format.generate(events, format, backend) diff --git a/qemu/scripts/tracetool/backend/__init__.py b/qemu/scripts/tracetool/backend/__init__.py new file mode 100644 index 000000000..d4b6dab9c --- /dev/null +++ b/qemu/scripts/tracetool/backend/__init__.py @@ -0,0 +1,123 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Backend management. + + +Creating new backends +--------------------- + +A new backend named 'foo-bar' corresponds to Python module +'tracetool/backend/foo_bar.py'. + +A backend module should provide a docstring, whose first non-empty line will be +considered its short description. + +All backends must generate their contents through the 'tracetool.out' routine. + + +Backend attributes +------------------ + +========= ==================================================================== +Attribute Description +========= ==================================================================== +PUBLIC If exists and is set to 'True', the backend is considered "public". +========= ==================================================================== + + +Backend functions +----------------- + +All the following functions are optional, and no output will be generated if +they do not exist. + +=============================== ============================================== +Function Description +=============================== ============================================== +generate__begin(events) Generate backend- and format-specific file + header contents. +generate__end(events) Generate backend- and format-specific file + footer contents. +generate_(event) Generate backend- and format-specific contents + for the given event. +=============================== ============================================== + +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +import os + +import tracetool + + +def get_list(only_public = False): + """Get a list of (name, description) pairs.""" + res = [("nop", "Tracing disabled.")] + modnames = [] + for filename in os.listdir(tracetool.backend.__path__[0]): + if filename.endswith('.py') and filename != '__init__.py': + modnames.append(filename.rsplit('.', 1)[0]) + for modname in sorted(modnames): + module = tracetool.try_import("tracetool.backend." + modname) + + # just in case; should never fail unless non-module files are put there + if not module[0]: + continue + module = module[1] + + public = getattr(module, "PUBLIC", False) + if only_public and not public: + continue + + doc = module.__doc__ + if doc is None: + doc = "" + doc = doc.strip().split("\n")[0] + + name = modname.replace("_", "-") + res.append((name, doc)) + return res + + +def exists(name): + """Return whether the given backend exists.""" + if len(name) == 0: + return False + if name == "nop": + return True + name = name.replace("-", "_") + return tracetool.try_import("tracetool.backend." + name)[1] + + +class Wrapper: + def __init__(self, backends, format): + self._backends = [backend.replace("-", "_") for backend in backends] + self._format = format.replace("-", "_") + for backend in self._backends: + assert exists(backend) + assert tracetool.format.exists(self._format) + + def _run_function(self, name, *args, **kwargs): + for backend in self._backends: + func = tracetool.try_import("tracetool.backend." + backend, + name % self._format, None)[1] + if func is not None: + func(*args, **kwargs) + + def generate_begin(self, events): + self._run_function("generate_%s_begin", events) + + def generate(self, event): + self._run_function("generate_%s", event) + + def generate_end(self, events): + self._run_function("generate_%s_end", events) diff --git a/qemu/scripts/tracetool/backend/dtrace.py b/qemu/scripts/tracetool/backend/dtrace.py new file mode 100644 index 000000000..fabfe9988 --- /dev/null +++ b/qemu/scripts/tracetool/backend/dtrace.py @@ -0,0 +1,46 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +DTrace/SystemTAP backend. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +PUBLIC = True + + +PROBEPREFIX = None + +def probeprefix(): + if PROBEPREFIX is None: + raise ValueError("you must set PROBEPREFIX") + return PROBEPREFIX + + +BINARY = None + +def binary(): + if BINARY is None: + raise ValueError("you must set BINARY") + return BINARY + + +def generate_h_begin(events): + out('#include "trace/generated-tracers-dtrace.h"', + '') + + +def generate_h(event): + out(' QEMU_%(uppername)s(%(argnames)s);', + uppername=event.name.upper(), + argnames=", ".join(event.args.names())) diff --git a/qemu/scripts/tracetool/backend/ftrace.py b/qemu/scripts/tracetool/backend/ftrace.py new file mode 100644 index 000000000..d798c7134 --- /dev/null +++ b/qemu/scripts/tracetool/backend/ftrace.py @@ -0,0 +1,48 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Ftrace built-in backend. +""" + +__author__ = "Eiichi Tsukata " +__copyright__ = "Copyright (C) 2013 Hitachi, Ltd." +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@redhat.com" + + +from tracetool import out + + +PUBLIC = True + + +def generate_h_begin(events): + out('#include "trace/ftrace.h"', + '#include "trace/control.h"', + '') + + +def generate_h(event): + argnames = ", ".join(event.args.names()) + if len(event.args) > 0: + argnames = ", " + argnames + + out(' {', + ' char ftrace_buf[MAX_TRACE_STRLEN];', + ' int unused __attribute__ ((unused));', + ' int trlen;', + ' if (trace_event_get_state(%(event_id)s)) {', + ' trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,', + ' "%(name)s " %(fmt)s "\\n" %(argnames)s);', + ' trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);', + ' unused = write(trace_marker_fd, ftrace_buf, trlen);', + ' }', + ' }', + name=event.name, + args=event.args, + event_id="TRACE_" + event.name.upper(), + fmt=event.fmt.rstrip("\n"), + argnames=argnames) diff --git a/qemu/scripts/tracetool/backend/simple.py b/qemu/scripts/tracetool/backend/simple.py new file mode 100644 index 000000000..e8c2cd57e --- /dev/null +++ b/qemu/scripts/tracetool/backend/simple.py @@ -0,0 +1,99 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Simple built-in backend. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +PUBLIC = True + + +def is_string(arg): + strtype = ('const char*', 'char*', 'const char *', 'char *') + if arg.lstrip().startswith(strtype): + return True + else: + return False + + +def generate_h_begin(events): + for event in events: + out('void _simple_%(api)s(%(args)s);', + api=event.api(), + args=event.args) + out('') + + +def generate_h(event): + out(' _simple_%(api)s(%(args)s);', + api=event.api(), + args=", ".join(event.args.names())) + + +def generate_c_begin(events): + out('#include "trace.h"', + '#include "trace/control.h"', + '#include "trace/simple.h"', + '') + + +def generate_c(event): + out('void _simple_%(api)s(%(args)s)', + '{', + ' TraceBufferRecord rec;', + api=event.api(), + args=event.args) + sizes = [] + for type_, name in event.args: + if is_string(type_): + out(' size_t arg%(name)s_len = %(name)s ? MIN(strlen(%(name)s), MAX_TRACE_STRLEN) : 0;', + name=name) + strsizeinfo = "4 + arg%s_len" % name + sizes.append(strsizeinfo) + else: + sizes.append("8") + sizestr = " + ".join(sizes) + if len(event.args) == 0: + sizestr = '0' + + + out('', + ' if (!trace_event_get_state(%(event_id)s)) {', + ' return;', + ' }', + '', + ' if (trace_record_start(&rec, %(event_id)s, %(size_str)s)) {', + ' return; /* Trace Buffer Full, Event Dropped ! */', + ' }', + event_id='TRACE_' + event.name.upper(), + size_str=sizestr) + + if len(event.args) > 0: + for type_, name in event.args: + # string + if is_string(type_): + out(' trace_record_write_str(&rec, %(name)s, arg%(name)s_len);', + name=name) + # pointer var (not string) + elif type_.endswith('*'): + out(' trace_record_write_u64(&rec, (uintptr_t)(uint64_t *)%(name)s);', + name=name) + # primitive data type + else: + out(' trace_record_write_u64(&rec, (uint64_t)%(name)s);', + name=name) + + out(' trace_record_finish(&rec);', + '}', + '') diff --git a/qemu/scripts/tracetool/backend/stderr.py b/qemu/scripts/tracetool/backend/stderr.py new file mode 100644 index 000000000..ca5805462 --- /dev/null +++ b/qemu/scripts/tracetool/backend/stderr.py @@ -0,0 +1,47 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Stderr built-in backend. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +PUBLIC = True + + +def generate_h_begin(events): + out('#include ', + '#include ', + '#include ', + '#include ', + '#include "trace/control.h"', + '') + + +def generate_h(event): + argnames = ", ".join(event.args.names()) + if len(event.args) > 0: + argnames = ", " + argnames + + out(' if (trace_event_get_state(%(event_id)s)) {', + ' struct timeval _now;', + ' gettimeofday(&_now, NULL);', + ' fprintf(stderr, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",', + ' getpid(),', + ' (size_t)_now.tv_sec, (size_t)_now.tv_usec', + ' %(argnames)s);', + ' }', + event_id="TRACE_" + event.name.upper(), + name=event.name, + fmt=event.fmt.rstrip("\n"), + argnames=argnames) diff --git a/qemu/scripts/tracetool/backend/ust.py b/qemu/scripts/tracetool/backend/ust.py new file mode 100644 index 000000000..2f8f44abd --- /dev/null +++ b/qemu/scripts/tracetool/backend/ust.py @@ -0,0 +1,35 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +LTTng User Space Tracing backend. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +PUBLIC = True + + +def generate_h_begin(events): + out('#include ', + '#include "trace/generated-ust-provider.h"', + '') + + +def generate_h(event): + argnames = ", ".join(event.args.names()) + if len(event.args) > 0: + argnames = ", " + argnames + + out(' tracepoint(qemu, %(name)s%(tp_args)s);', + name=event.name, + tp_args=argnames) diff --git a/qemu/scripts/tracetool/format/__init__.py b/qemu/scripts/tracetool/format/__init__.py new file mode 100644 index 000000000..812570ff6 --- /dev/null +++ b/qemu/scripts/tracetool/format/__init__.py @@ -0,0 +1,85 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Format management. + + +Creating new formats +-------------------- + +A new format named 'foo-bar' corresponds to Python module +'tracetool/format/foo_bar.py'. + +A format module should provide a docstring, whose first non-empty line will be +considered its short description. + +All formats must generate their contents through the 'tracetool.out' routine. + + +Format functions +---------------- + +======== ================================================================== +Function Description +======== ================================================================== +generate Called to generate a format-specific file. +======== ================================================================== + +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +import os + +import tracetool + + +def get_list(): + """Get a list of (name, description) pairs.""" + res = [] + modnames = [] + for filename in os.listdir(tracetool.format.__path__[0]): + if filename.endswith('.py') and filename != '__init__.py': + modnames.append(filename.rsplit('.', 1)[0]) + for modname in sorted(modnames): + module = tracetool.try_import("tracetool.format." + modname) + + # just in case; should never fail unless non-module files are put there + if not module[0]: + continue + module = module[1] + + doc = module.__doc__ + if doc is None: + doc = "" + doc = doc.strip().split("\n")[0] + + name = modname.replace("_", "-") + res.append((name, doc)) + return res + + +def exists(name): + """Return whether the given format exists.""" + if len(name) == 0: + return False + name = name.replace("-", "_") + return tracetool.try_import("tracetool.format." + name)[1] + + +def generate(events, format, backend): + if not exists(format): + raise ValueError("unknown format: %s" % format) + format = format.replace("-", "_") + func = tracetool.try_import("tracetool.format." + format, + "generate")[1] + if func is None: + raise AttributeError("format has no 'generate': %s" % format) + func(events, backend) diff --git a/qemu/scripts/tracetool/format/c.py b/qemu/scripts/tracetool/format/c.py new file mode 100644 index 000000000..699598fb0 --- /dev/null +++ b/qemu/scripts/tracetool/format/c.py @@ -0,0 +1,28 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-tracers.c +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '') + backend.generate_begin(events) + for event in events: + backend.generate(event) + backend.generate_end(events) diff --git a/qemu/scripts/tracetool/format/d.py b/qemu/scripts/tracetool/format/d.py new file mode 100644 index 000000000..c77d5b7ab --- /dev/null +++ b/qemu/scripts/tracetool/format/d.py @@ -0,0 +1,54 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-tracers.dtrace (DTrace only). +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +# Reserved keywords from +# https://wikis.oracle.com/display/DTrace/Types,+Operators+and+Expressions +RESERVED_WORDS = ( + 'auto', 'goto', 'sizeof', 'break', 'if', 'static', 'case', 'import', + 'string', 'char', 'inline', 'stringof', 'const', 'int', 'struct', + 'continue', 'long', 'switch', 'counter', 'offsetof', 'this', + 'default', 'probe', 'translator', 'do', 'provider', 'typedef', + 'double', 'register', 'union', 'else', 'restrict', 'unsigned', + 'enum', 'return', 'void', 'extern', 'self', 'volatile', 'float', + 'short', 'while', 'for', 'signed', 'xlate', +) + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */' + '', + 'provider qemu {') + + for e in events: + args = [] + for type_, name in e.args: + if name in RESERVED_WORDS: + name += '_' + args.append(type_ + ' ' + name) + + # Define prototype for probe arguments + out('', + 'probe %(name)s(%(args)s);', + name=e.name, + args=','.join(args)) + + out('', + '};') diff --git a/qemu/scripts/tracetool/format/events_c.py b/qemu/scripts/tracetool/format/events_c.py new file mode 100644 index 000000000..2d97fa310 --- /dev/null +++ b/qemu/scripts/tracetool/format/events_c.py @@ -0,0 +1,36 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-events.c +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +def generate(events, backend): + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#include "trace.h"', + '#include "trace/generated-events.h"', + '#include "trace/control.h"', + '') + + out('TraceEvent trace_events[TRACE_EVENT_COUNT] = {') + + for e in events: + out(' { .id = %(id)s, .name = \"%(name)s\", .sstate = %(sstate)s, .dstate = 0 },', + id = "TRACE_" + e.name.upper(), + name = e.name, + sstate = "TRACE_%s_ENABLED" % e.name.upper()) + + out('};', + '') diff --git a/qemu/scripts/tracetool/format/events_h.py b/qemu/scripts/tracetool/format/events_h.py new file mode 100644 index 000000000..9f114a349 --- /dev/null +++ b/qemu/scripts/tracetool/format/events_h.py @@ -0,0 +1,52 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-events.h +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +def generate(events, backend): + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#ifndef TRACE__GENERATED_EVENTS_H', + '#define TRACE__GENERATED_EVENTS_H', + '', + '#include ', + '') + + # event identifiers + out('typedef enum {') + + for e in events: + out(' TRACE_%s,' % e.name.upper()) + + out(' TRACE_EVENT_COUNT', + '} TraceEventID;') + + # static state + for e in events: + if 'disable' in e.properties: + enabled = 0 + else: + enabled = 1 + if "tcg-trans" in e.properties: + # a single define for the two "sub-events" + out('#define TRACE_%(name)s_ENABLED %(enabled)d', + name=e.original.original.name.upper(), + enabled=enabled) + out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled)) + + out('#include "trace/event-internal.h"', + '', + '#endif /* TRACE__GENERATED_EVENTS_H */') diff --git a/qemu/scripts/tracetool/format/h.py b/qemu/scripts/tracetool/format/h.py new file mode 100644 index 000000000..9b3943002 --- /dev/null +++ b/qemu/scripts/tracetool/format/h.py @@ -0,0 +1,44 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-tracers.h +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +def generate(events, backend): + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#ifndef TRACE__GENERATED_TRACERS_H', + '#define TRACE__GENERATED_TRACERS_H', + '', + '#include "qemu-common.h"', + '') + + backend.generate_begin(events) + + for e in events: + out('', + 'static inline void %(api)s(%(args)s)', + '{', + api=e.api(), + args=e.args) + + if "disable" not in e.properties: + backend.generate(e) + + out('}') + + backend.generate_end(events) + + out('#endif /* TRACE__GENERATED_TRACERS_H */') diff --git a/qemu/scripts/tracetool/format/simpletrace_stap.py b/qemu/scripts/tracetool/format/simpletrace_stap.py new file mode 100644 index 000000000..7e44bc181 --- /dev/null +++ b/qemu/scripts/tracetool/format/simpletrace_stap.py @@ -0,0 +1,71 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate .stp file that outputs simpletrace binary traces (DTrace with SystemTAP only). +""" + +__author__ = "Stefan Hajnoczi " +__copyright__ = "Copyright (C) 2014, Red Hat, Inc." +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@redhat.com" + + +from tracetool import out +from tracetool.backend.dtrace import binary, probeprefix +from tracetool.backend.simple import is_string +from tracetool.format.stap import stap_escape + + +def generate(events, backend): + out('/* This file is autogenerated by tracetool, do not edit. */', + '') + + for event_id, e in enumerate(events): + if 'disable' in e.properties: + continue + + out('probe %(probeprefix)s.simpletrace.%(name)s = %(probeprefix)s.%(name)s ?', + '{', + probeprefix=probeprefix(), + name=e.name) + + # Calculate record size + sizes = ['24'] # sizeof(TraceRecord) + for type_, name in e.args: + name = stap_escape(name) + if is_string(type_): + out(' try {', + ' arg%(name)s_str = %(name)s ? user_string_n(%(name)s, 512) : ""', + ' } catch {}', + ' arg%(name)s_len = strlen(arg%(name)s_str)', + name=name) + sizes.append('4 + arg%s_len' % name) + else: + sizes.append('8') + sizestr = ' + '.join(sizes) + + # Generate format string and value pairs for record header and arguments + fields = [('8b', str(event_id)), + ('8b', 'gettimeofday_ns()'), + ('4b', sizestr), + ('4b', 'pid()')] + for type_, name in e.args: + name = stap_escape(name) + if is_string(type_): + fields.extend([('4b', 'arg%s_len' % name), + ('.*s', 'arg%s_len, arg%s_str' % (name, name))]) + else: + fields.append(('8b', name)) + + # Emit the entire record in a single SystemTap printf() + fmt_str = '%'.join(fmt for fmt, _ in fields) + arg_str = ', '.join(arg for _, arg in fields) + out(' printf("%%%(fmt_str)s", %(arg_str)s)', + fmt_str=fmt_str, arg_str=arg_str) + + out('}') + + out() diff --git a/qemu/scripts/tracetool/format/stap.py b/qemu/scripts/tracetool/format/stap.py new file mode 100644 index 000000000..9e780f1b0 --- /dev/null +++ b/qemu/scripts/tracetool/format/stap.py @@ -0,0 +1,61 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate .stp file (DTrace with SystemTAP only). +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out +from tracetool.backend.dtrace import binary, probeprefix + + +# Technically 'self' is not used by systemtap yet, but +# they recommended we keep it in the reserved list anyway +RESERVED_WORDS = ( + 'break', 'catch', 'continue', 'delete', 'else', 'for', + 'foreach', 'function', 'global', 'if', 'in', 'limit', + 'long', 'next', 'probe', 'return', 'self', 'string', + 'try', 'while' + ) + + +def stap_escape(identifier): + # Append underscore to reserved keywords + if identifier in RESERVED_WORDS: + return identifier + '_' + return identifier + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '') + + for e in events: + # Define prototype for probe arguments + out('probe %(probeprefix)s.%(name)s = process("%(binary)s").mark("%(name)s")', + '{', + probeprefix=probeprefix(), + name=e.name, + binary=binary()) + + i = 1 + if len(e.args) > 0: + for name in e.args.names(): + name = stap_escape(name) + out(' %s = $arg%d;' % (name, i)) + i += 1 + + out('}') + + out() diff --git a/qemu/scripts/tracetool/format/tcg_h.py b/qemu/scripts/tracetool/format/tcg_h.py new file mode 100644 index 000000000..f676b6662 --- /dev/null +++ b/qemu/scripts/tracetool/format/tcg_h.py @@ -0,0 +1,57 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate .h file for TCG code generation. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out + + +def generate(events, backend): + out('/* This file is autogenerated by tracetool, do not edit. */', + '/* You must include this file after the inclusion of helper.h */', + '', + '#ifndef TRACE__GENERATED_TCG_TRACERS_H', + '#define TRACE__GENERATED_TCG_TRACERS_H', + '', + '#include ', + '', + '#include "trace.h"', + '#include "exec/helper-proto.h"', + '', + ) + + for e in events: + # just keep one of them + if "tcg-trans" not in e.properties: + continue + + # get the original event definition + e = e.original.original + + out('static inline void %(name_tcg)s(%(args)s)', + '{', + name_tcg=e.api(e.QEMU_TRACE_TCG), + args=e.args) + + if "disable" not in e.properties: + out(' %(name_trans)s(%(argnames_trans)s);', + ' gen_helper_%(name_exec)s(%(argnames_exec)s);', + name_trans=e.event_trans.api(e.QEMU_TRACE), + name_exec=e.event_exec.api(e.QEMU_TRACE), + argnames_trans=", ".join(e.event_trans.args.names()), + argnames_exec=", ".join(e.event_exec.args.names())) + + out('}') + + out('', + '#endif /* TRACE__GENERATED_TCG_TRACERS_H */') diff --git a/qemu/scripts/tracetool/format/tcg_helper_c.py b/qemu/scripts/tracetool/format/tcg_helper_c.py new file mode 100644 index 000000000..96655a059 --- /dev/null +++ b/qemu/scripts/tracetool/format/tcg_helper_c.py @@ -0,0 +1,50 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate trace/generated-helpers.c. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out +from tracetool.transform import * + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#include "qemu-common.h"', + '#include "trace.h"', + '#include "exec/helper-proto.h"', + '', + ) + + for e in events: + if "tcg-exec" not in e.properties: + continue + + # tracetool.generate always transforms types to host + e_args = e.original.args + + values = ["(%s)%s" % (t, n) + for t, n in e.args.transform(TCG_2_TCG_HELPER_DEF)] + + out('void %(name_tcg)s(%(args)s)', + '{', + ' %(name)s(%(values)s);', + '}', + name_tcg="helper_%s_proxy" % e.api(), + name=e.api(), + args=e_args.transform(HOST_2_TCG_COMPAT, TCG_2_TCG_HELPER_DEF), + values=", ".join(values), + ) diff --git a/qemu/scripts/tracetool/format/tcg_helper_h.py b/qemu/scripts/tracetool/format/tcg_helper_h.py new file mode 100644 index 000000000..a8ba7ba8e --- /dev/null +++ b/qemu/scripts/tracetool/format/tcg_helper_h.py @@ -0,0 +1,50 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate trace/generated-helpers.h. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out +from tracetool.transform import * + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + ) + + for e in events: + if "tcg-exec" not in e.properties: + continue + + # tracetool.generate always transforms types to host + e_args = e.original.args + + # TCG helper proxy declaration + fmt = "DEF_HELPER_FLAGS_%(argc)d(%(name)s, %(flags)svoid%(types)s)" + args = e_args.transform(HOST_2_TCG_COMPAT, HOST_2_TCG, + TCG_2_TCG_HELPER_DECL) + types = ", ".join(args.types()) + if types != "": + types = ", " + types + + flags = "TCG_CALL_NO_RWG, " + + out(fmt, + flags=flags, + argc=len(args), + name=e.api() + "_proxy", + types=types, + ) diff --git a/qemu/scripts/tracetool/format/tcg_helper_wrapper_h.py b/qemu/scripts/tracetool/format/tcg_helper_wrapper_h.py new file mode 100644 index 000000000..cac5a878f --- /dev/null +++ b/qemu/scripts/tracetool/format/tcg_helper_wrapper_h.py @@ -0,0 +1,70 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Generate trace/generated-helpers-wrappers.h. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +from tracetool import out +from tracetool.transform import * + + +def generate(events, backend): + events = [e for e in events + if "disable" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#define tcg_temp_new_nop(v) (v)', + '#define tcg_temp_free_nop(v)', + '', + ) + + for e in events: + if "tcg-exec" not in e.properties: + continue + + # tracetool.generate always transforms types to host + e_args = e.original.args + + # mixed-type to TCG helper bridge + args_tcg_compat = e_args.transform(HOST_2_TCG_COMPAT) + + code_new = [ + "%(tcg_type)s __%(name)s = %(tcg_func)s(%(name)s);" % + {"tcg_type": transform_type(type_, HOST_2_TCG), + "tcg_func": transform_type(type_, HOST_2_TCG_TMP_NEW), + "name": name} + for (type_, name) in args_tcg_compat + ] + + code_free = [ + "%(tcg_func)s(__%(name)s);" % + {"tcg_func": transform_type(type_, HOST_2_TCG_TMP_FREE), + "name": name} + for (type_, name) in args_tcg_compat + ] + + gen_name = "gen_helper_" + e.api() + + out('static inline void %(name)s(%(args)s)', + '{', + ' %(code_new)s', + ' %(proxy_name)s(%(tmp_names)s);', + ' %(code_free)s', + '}', + name=gen_name, + args=e_args, + proxy_name=gen_name + "_proxy", + code_new="\n ".join(code_new), + code_free="\n ".join(code_free), + tmp_names=", ".join(["__%s" % name for _, name in e_args]), + ) diff --git a/qemu/scripts/tracetool/format/ust_events_c.py b/qemu/scripts/tracetool/format/ust_events_c.py new file mode 100644 index 000000000..bc970936b --- /dev/null +++ b/qemu/scripts/tracetool/format/ust_events_c.py @@ -0,0 +1,33 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-ust.c +""" + +__author__ = "Mohamad Gebai " +__copyright__ = "Copyright 2012, Mohamad Gebai " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@redhat.com" + + +from tracetool import out + + +def generate(events, backend): + events = [e for e in events + if "disabled" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#define TRACEPOINT_DEFINE', + '#define TRACEPOINT_CREATE_PROBES', + '', + '/* If gcc version 4.7 or older is used, LTTng ust gives a warning when compiling with', + ' -Wredundant-decls.', + ' */', + '#pragma GCC diagnostic ignored "-Wredundant-decls"', + '', + '#include "generated-ust-provider.h"') diff --git a/qemu/scripts/tracetool/format/ust_events_h.py b/qemu/scripts/tracetool/format/ust_events_h.py new file mode 100644 index 000000000..3e8a7cdf1 --- /dev/null +++ b/qemu/scripts/tracetool/format/ust_events_h.py @@ -0,0 +1,100 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +trace/generated-ust-provider.h +""" + +__author__ = "Mohamad Gebai " +__copyright__ = "Copyright 2012, Mohamad Gebai " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@redhat.com" + + +from tracetool import out + + +def generate(events, backend): + events = [e for e in events + if "disabled" not in e.properties] + + out('/* This file is autogenerated by tracetool, do not edit. */', + '', + '#undef TRACEPOINT_PROVIDER', + '#define TRACEPOINT_PROVIDER qemu', + '', + '#undef TRACEPOINT_INCLUDE_FILE', + '#define TRACEPOINT_INCLUDE_FILE ./generated-ust-provider.h', + '', + '#if !defined (TRACE__GENERATED_UST_H) || defined(TRACEPOINT_HEADER_MULTI_READ)', + '#define TRACE__GENERATED_UST_H', + '', + '#include "qemu-common.h"', + '#include ', + '', + '/*', + ' * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints', + ' * requiring no arguments. We define these macros introduced in more recent' + ' * versions of LTTng ust as a workaround', + ' */', + '#ifndef _TP_EXPROTO1', + '#define _TP_EXPROTO1(a) void', + '#endif', + '#ifndef _TP_EXDATA_PROTO1', + '#define _TP_EXDATA_PROTO1(a) void *__tp_data', + '#endif', + '#ifndef _TP_EXDATA_VAR1', + '#define _TP_EXDATA_VAR1(a) __tp_data', + '#endif', + '#ifndef _TP_EXVAR1', + '#define _TP_EXVAR1(a)', + '#endif', + '') + + for e in events: + if len(e.args) > 0: + out('TRACEPOINT_EVENT(', + ' qemu,', + ' %(name)s,', + ' TP_ARGS(%(args)s),', + ' TP_FIELDS(', + name=e.name, + args=", ".join(", ".join(i) for i in e.args)) + + types = e.args.types() + names = e.args.names() + fmts = e.formats() + for t,n,f in zip(types, names, fmts): + if ('char *' in t) or ('char*' in t): + out(' ctf_string(' + n + ', ' + n + ')') + elif ("%p" in f) or ("x" in f) or ("PRIx" in f): + out(' ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')') + elif ("ptr" in t) or ("*" in t): + out(' ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')') + elif ('int' in t) or ('long' in t) or ('unsigned' in t) or ('size_t' in t): + out(' ctf_integer(' + t + ', ' + n + ', ' + n + ')') + elif ('double' in t) or ('float' in t): + out(' ctf_float(' + t + ', ' + n + ', ' + n + ')') + elif ('void *' in t) or ('void*' in t): + out(' ctf_integer_hex(unsigned long, ' + n + ', ' + n + ')') + + out(' )', + ')', + '') + + else: + out('TRACEPOINT_EVENT(', + ' qemu,', + ' %(name)s,', + ' TP_ARGS(void),', + ' TP_FIELDS()', + ')', + '', + name=e.name) + + out('#endif /* TRACE__GENERATED_UST_H */', + '', + '/* This part must be outside ifdef protection */', + '#include ') diff --git a/qemu/scripts/tracetool/transform.py b/qemu/scripts/tracetool/transform.py new file mode 100644 index 000000000..fc5e679ed --- /dev/null +++ b/qemu/scripts/tracetool/transform.py @@ -0,0 +1,166 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +Type-transformation rules. +""" + +__author__ = "Lluís Vilanova " +__copyright__ = "Copyright 2012-2014, Lluís Vilanova " +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +def _transform_type(type_, trans): + if isinstance(trans, str): + return trans + elif isinstance(trans, dict): + if type_ in trans: + return _transform_type(type_, trans[type_]) + elif None in trans: + return _transform_type(type_, trans[None]) + else: + return type_ + elif callable(trans): + return trans(type_) + else: + raise ValueError("Invalid type transformation rule: %s" % trans) + + +def transform_type(type_, *trans): + """Return a new type transformed according to the given rules. + + Applies each of the transformation rules in trans in order. + + If an element of trans is a string, return it. + + If an element of trans is a function, call it with type_ as its only + argument. + + If an element of trans is a dict, search type_ in its keys. If type_ is + a key, use the value as a transformation rule for type_. Otherwise, if + None is a key use the value as a transformation rule for type_. + + Otherwise, return type_. + + Parameters + ---------- + type_ : str + Type to transform. + trans : list of function or dict + Type transformation rules. + """ + if len(trans) == 0: + raise ValueError + res = type_ + for t in trans: + res = _transform_type(res, t) + return res + + +################################################## +# tcg -> host + +def _tcg_2_host(type_): + if type_ == "TCGv": + # force a fixed-size type (target-independent) + return "uint64_t" + else: + return type_ + +TCG_2_HOST = { + "TCGv_i32": "uint32_t", + "TCGv_i64": "uint64_t", + "TCGv_ptr": "void *", + None: _tcg_2_host, + } + + +################################################## +# host -> host compatible with tcg sizes + +HOST_2_TCG_COMPAT = { + "uint8_t": "uint32_t", + } + + +################################################## +# host/tcg -> tcg + +def _host_2_tcg(type_): + if type_.startswith("TCGv"): + return type_ + raise ValueError("Don't know how to translate '%s' into a TCG type\n" % type_) + +HOST_2_TCG = { + "uint32_t": "TCGv_i32", + "uint64_t": "TCGv_i64", + "void *" : "TCGv_ptr", + None: _host_2_tcg, + } + + +################################################## +# tcg -> tcg helper definition + +def _tcg_2_helper_def(type_): + if type_ == "TCGv": + return "target_ulong" + else: + return type_ + +TCG_2_TCG_HELPER_DEF = { + "TCGv_i32": "uint32_t", + "TCGv_i64": "uint64_t", + "TCGv_ptr": "void *", + None: _tcg_2_helper_def, + } + + +################################################## +# tcg -> tcg helper declaration + +def _tcg_2_tcg_helper_decl_error(type_): + raise ValueError("Don't know how to translate type '%s' into a TCG helper declaration type\n" % type_) + +TCG_2_TCG_HELPER_DECL = { + "TCGv" : "tl", + "TCGv_ptr": "ptr", + "TCGv_i32": "i32", + "TCGv_i64": "i64", + None: _tcg_2_tcg_helper_decl_error, + } + + +################################################## +# host/tcg -> tcg temporal constant allocation + +def _host_2_tcg_tmp_new(type_): + if type_.startswith("TCGv"): + return "tcg_temp_new_nop" + raise ValueError("Don't know how to translate type '%s' into a TCG temporal allocation" % type_) + +HOST_2_TCG_TMP_NEW = { + "uint32_t": "tcg_const_i32", + "uint64_t": "tcg_const_i64", + "void *" : "tcg_const_ptr", + None: _host_2_tcg_tmp_new, + } + + +################################################## +# host/tcg -> tcg temporal constant deallocation + +def _host_2_tcg_tmp_free(type_): + if type_.startswith("TCGv"): + return "tcg_temp_free_nop" + raise ValueError("Don't know how to translate type '%s' into a TCG temporal deallocation" % type_) + +HOST_2_TCG_TMP_FREE = { + "uint32_t": "tcg_temp_free_i32", + "uint64_t": "tcg_temp_free_i64", + "void *" : "tcg_temp_free_ptr", + None: _host_2_tcg_tmp_free, + } -- cgit 1.2.3-korg