mirror of https://gitee.com/openkylin/qemu.git
tracing: excise the tcg related from tracetool
Now we have no TCG trace events and no longer handle them in the code we can remove the handling from the tracetool to generate them. vcpu tracing is still available although the existing syscall event is an exercise in redundancy (plugins and -strace can also get the information). Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Cc: Luis Vilanova <vilanova@imperial.ac.uk> Cc: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20220204204335.1689602-21-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée
parent
d201cf7a73
commit
126d4123c5
|
|
@ -79,8 +79,6 @@ static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) \
|
|||
}
|
||||
|
||||
#include "helper.h"
|
||||
#include "trace/generated-helpers.h"
|
||||
#include "trace/generated-helpers-wrappers.h"
|
||||
#include "accel/tcg/tcg-runtime.h"
|
||||
#include "accel/tcg/plugin-helpers.h"
|
||||
|
||||
|
|
|
|||
|
|
@ -2357,19 +2357,15 @@ tracetool_depends = files(
|
|||
'scripts/tracetool/backend/simple.py',
|
||||
'scripts/tracetool/backend/syslog.py',
|
||||
'scripts/tracetool/backend/ust.py',
|
||||
'scripts/tracetool/format/tcg_h.py',
|
||||
'scripts/tracetool/format/ust_events_c.py',
|
||||
'scripts/tracetool/format/ust_events_h.py',
|
||||
'scripts/tracetool/format/__init__.py',
|
||||
'scripts/tracetool/format/d.py',
|
||||
'scripts/tracetool/format/tcg_helper_c.py',
|
||||
'scripts/tracetool/format/simpletrace_stap.py',
|
||||
'scripts/tracetool/format/c.py',
|
||||
'scripts/tracetool/format/h.py',
|
||||
'scripts/tracetool/format/tcg_helper_h.py',
|
||||
'scripts/tracetool/format/log_stap.py',
|
||||
'scripts/tracetool/format/stap.py',
|
||||
'scripts/tracetool/format/tcg_helper_wrapper_h.py',
|
||||
'scripts/tracetool/__init__.py',
|
||||
'scripts/tracetool/transform.py',
|
||||
'scripts/tracetool/vcpu.py'
|
||||
|
|
|
|||
|
|
@ -87,8 +87,6 @@ def out(*lines, **kwargs):
|
|||
"ssize_t",
|
||||
"uintptr_t",
|
||||
"ptrdiff_t",
|
||||
# Magic substitution is done by tracetool
|
||||
"TCGv",
|
||||
]
|
||||
|
||||
def validate_type(name):
|
||||
|
|
@ -232,7 +230,7 @@ class Event(object):
|
|||
"(?:(?:(?P<fmt_trans>\".+),)?\s*(?P<fmt>\".+))?"
|
||||
"\s*")
|
||||
|
||||
_VALID_PROPS = set(["disable", "tcg", "tcg-trans", "tcg-exec", "vcpu"])
|
||||
_VALID_PROPS = set(["disable", "vcpu"])
|
||||
|
||||
def __init__(self, name, props, fmt, args, lineno, filename, orig=None,
|
||||
event_trans=None, event_exec=None):
|
||||
|
|
@ -321,15 +319,6 @@ def build(line_str, lineno, filename):
|
|||
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 format strings")
|
||||
if "tcg" in props and isinstance(fmt, str):
|
||||
raise ValueError("Events with 'tcg' property must have two format strings")
|
||||
|
||||
event = Event(name, props, fmt, args, lineno, filename)
|
||||
|
||||
# add implicit arguments when using the 'vcpu' property
|
||||
|
|
@ -409,33 +398,7 @@ def read_events(fobj, fname):
|
|||
e.args = (arg0,) + e.args[1:]
|
||||
raise
|
||||
|
||||
# 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
|
||||
|
||||
|
|
|
|||
|
|
@ -1,83 +0,0 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
Generate .h file for TCG code generation.
|
||||
"""
|
||||
|
||||
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__license__ = "GPL version 2 or (at your option) any later version"
|
||||
|
||||
__maintainer__ = "Stefan Hajnoczi"
|
||||
__email__ = "stefanha@redhat.com"
|
||||
|
||||
|
||||
from tracetool import out, Arguments
|
||||
import tracetool.vcpu
|
||||
|
||||
|
||||
def vcpu_transform_args(args):
|
||||
assert len(args) == 1
|
||||
return Arguments([
|
||||
args,
|
||||
# NOTE: this name must be kept in sync with the one in "tcg_h"
|
||||
# NOTE: Current helper code uses TCGv_env (CPUArchState*)
|
||||
("TCGv_env", "__tcg_" + args.names()[0]),
|
||||
])
|
||||
|
||||
|
||||
def generate(events, backend, group):
|
||||
if group == "root":
|
||||
header = "trace/trace-root.h"
|
||||
else:
|
||||
header = "trace.h"
|
||||
|
||||
out('/* This file is autogenerated by tracetool, do not edit. */',
|
||||
'/* You must include this file after the inclusion of helper.h */',
|
||||
'',
|
||||
'#ifndef TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
|
||||
'#define TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
|
||||
'',
|
||||
'#include "exec/helper-proto.h"',
|
||||
'#include "%s"' % header,
|
||||
'',
|
||||
)
|
||||
|
||||
for e in events:
|
||||
# just keep one of them
|
||||
if "tcg-exec" not in e.properties:
|
||||
continue
|
||||
|
||||
out('static inline void %(name_tcg)s(%(args)s)',
|
||||
'{',
|
||||
name_tcg=e.original.api(e.QEMU_TRACE_TCG),
|
||||
args=tracetool.vcpu.transform_args("tcg_h", e.original))
|
||||
|
||||
if "disable" not in e.properties:
|
||||
args_trans = e.original.event_trans.args
|
||||
args_exec = tracetool.vcpu.transform_args(
|
||||
"tcg_helper_c", e.original.event_exec, "wrapper")
|
||||
if "vcpu" in e.properties:
|
||||
trace_cpu = e.args.names()[0]
|
||||
cond = "trace_event_get_vcpu_state(%(cpu)s,"\
|
||||
" TRACE_%(id)s)"\
|
||||
% dict(
|
||||
cpu=trace_cpu,
|
||||
id=e.original.event_exec.name.upper())
|
||||
else:
|
||||
cond = "true"
|
||||
|
||||
out(' %(name_trans)s(%(argnames_trans)s);',
|
||||
' if (%(cond)s) {',
|
||||
' gen_helper_%(name_exec)s(%(argnames_exec)s);',
|
||||
' }',
|
||||
name_trans=e.original.event_trans.api(e.QEMU_TRACE),
|
||||
name_exec=e.original.event_exec.api(e.QEMU_TRACE),
|
||||
argnames_trans=", ".join(args_trans.names()),
|
||||
argnames_exec=", ".join(args_exec.names()),
|
||||
cond=cond)
|
||||
|
||||
out('}')
|
||||
|
||||
out('',
|
||||
'#endif /* TRACE_%s_GENERATED_TCG_TRACERS_H */' % group.upper())
|
||||
|
|
@ -1,79 +0,0 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
Generate trace/generated-helpers.c.
|
||||
"""
|
||||
|
||||
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__license__ = "GPL version 2 or (at your option) any later version"
|
||||
|
||||
__maintainer__ = "Stefan Hajnoczi"
|
||||
__email__ = "stefanha@redhat.com"
|
||||
|
||||
|
||||
from tracetool import Arguments, out
|
||||
from tracetool.transform import *
|
||||
import tracetool.vcpu
|
||||
|
||||
|
||||
def vcpu_transform_args(args, mode):
|
||||
assert len(args) == 1
|
||||
# NOTE: this name must be kept in sync with the one in "tcg_h"
|
||||
args = Arguments([(args.types()[0], "__tcg_" + args.names()[0])])
|
||||
if mode == "code":
|
||||
return Arguments([
|
||||
# Does cast from helper requirements to tracing types
|
||||
("CPUState *", "env_cpu(%s)" % args.names()[0]),
|
||||
])
|
||||
else:
|
||||
args = Arguments([
|
||||
# NOTE: Current helper code uses TCGv_env (CPUArchState*)
|
||||
("CPUArchState *", args.names()[0]),
|
||||
])
|
||||
if mode == "header":
|
||||
return args
|
||||
elif mode == "wrapper":
|
||||
return args.transform(HOST_2_TCG)
|
||||
else:
|
||||
assert False
|
||||
|
||||
|
||||
def generate(events, backend, group):
|
||||
if group == "root":
|
||||
header = "trace/trace-root.h"
|
||||
else:
|
||||
header = "trace.h"
|
||||
|
||||
events = [e for e in events
|
||||
if "disable" not in e.properties]
|
||||
|
||||
out('/* This file is autogenerated by tracetool, do not edit. */',
|
||||
'',
|
||||
'#include "qemu/osdep.h"',
|
||||
'#include "cpu.h"',
|
||||
'#include "exec/helper-proto.h"',
|
||||
'#include "%s"' % header,
|
||||
'',
|
||||
)
|
||||
|
||||
for e in events:
|
||||
if "tcg-exec" not in e.properties:
|
||||
continue
|
||||
|
||||
e_args_api = tracetool.vcpu.transform_args(
|
||||
"tcg_helper_c", e.original, "header").transform(
|
||||
HOST_2_TCG_COMPAT, TCG_2_TCG_HELPER_DEF)
|
||||
e_args_call = tracetool.vcpu.transform_args(
|
||||
"tcg_helper_c", e, "code")
|
||||
|
||||
out('void %(name_tcg)s(%(args_api)s)',
|
||||
'{',
|
||||
# NOTE: the check was already performed at TCG-generation time
|
||||
' %(name)s(%(args_call)s);',
|
||||
'}',
|
||||
name_tcg="helper_%s_proxy" % e.api(),
|
||||
name=e.api(e.QEMU_TRACE_NOCHECK),
|
||||
args_api=e_args_api,
|
||||
args_call=", ".join(e_args_call.casted()),
|
||||
)
|
||||
|
|
@ -1,48 +0,0 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
Generate trace/generated-helpers.h.
|
||||
"""
|
||||
|
||||
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__license__ = "GPL version 2 or (at your option) any later version"
|
||||
|
||||
__maintainer__ = "Stefan Hajnoczi"
|
||||
__email__ = "stefanha@redhat.com"
|
||||
|
||||
|
||||
from tracetool import out
|
||||
from tracetool.transform import *
|
||||
import tracetool.vcpu
|
||||
|
||||
|
||||
def generate(events, backend, group):
|
||||
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
|
||||
|
||||
# TCG helper proxy declaration
|
||||
fmt = "DEF_HELPER_FLAGS_%(argc)d(%(name)s, %(flags)svoid%(types)s)"
|
||||
e_args = tracetool.vcpu.transform_args("tcg_helper_c", e.original, "header")
|
||||
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,
|
||||
)
|
||||
|
|
@ -1,70 +0,0 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
|
||||
"""
|
||||
Generate trace/generated-helpers-wrappers.h.
|
||||
"""
|
||||
|
||||
__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
|
||||
__license__ = "GPL version 2 or (at your option) any later version"
|
||||
|
||||
__maintainer__ = "Stefan Hajnoczi"
|
||||
__email__ = "stefanha@redhat.com"
|
||||
|
||||
|
||||
from tracetool import out
|
||||
from tracetool.transform import *
|
||||
import tracetool.vcpu
|
||||
|
||||
|
||||
def generate(events, backend, group):
|
||||
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 = tracetool.vcpu.transform_args("tcg_helper_c", e.original, "wrapper")
|
||||
|
||||
# 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]),
|
||||
)
|
||||
|
|
@ -19,17 +19,7 @@
|
|||
def transform_event(event):
|
||||
"""Transform event to comply with the 'vcpu' property (if present)."""
|
||||
if "vcpu" in event.properties:
|
||||
# events with 'tcg-trans' and 'tcg-exec' are auto-generated from
|
||||
# already-patched events
|
||||
assert "tcg-trans" not in event.properties
|
||||
assert "tcg-exec" not in event.properties
|
||||
|
||||
event.args = Arguments([("void *", "__cpu"), event.args])
|
||||
if "tcg" in event.properties:
|
||||
fmt = "\"cpu=%p \""
|
||||
event.fmt = [fmt + event.fmt[0],
|
||||
fmt + event.fmt[1]]
|
||||
else:
|
||||
fmt = "\"cpu=%p \""
|
||||
event.fmt = fmt + event.fmt
|
||||
return event
|
||||
|
|
|
|||
|
|
@ -66,19 +66,6 @@ trace_events_all = custom_target('trace-events-all',
|
|||
install: true,
|
||||
install_dir: qemu_datadir)
|
||||
|
||||
foreach d : [
|
||||
['generated-helpers.c', 'tcg-helper-c'],
|
||||
['generated-helpers.h', 'tcg-helper-h'],
|
||||
['generated-helpers-wrappers.h', 'tcg-helper-wrapper-h'],
|
||||
]
|
||||
gen = custom_target(d[0],
|
||||
output: d[0],
|
||||
input: meson.project_source_root() / 'trace-events',
|
||||
command: [ tracetool, '--group=root', '--format=@0@'.format(d[1]), '@INPUT@', '@OUTPUT@' ],
|
||||
depend_files: tracetool_depends)
|
||||
specific_ss.add(when: 'CONFIG_TCG', if_true: gen)
|
||||
endforeach
|
||||
|
||||
if 'ust' in get_option('trace_backends')
|
||||
trace_ust_all_h = custom_target('trace-ust-all.h',
|
||||
output: 'trace-ust-all.h',
|
||||
|
|
|
|||
Loading…
Reference in New Issue