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# -*- 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-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()),
)
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