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# -*- 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())
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