243af0225a
Meson doesn't enjoy the same flexibility we have with Make in choosing the include path. In particular the tracing headers are using $(build_root)/$(<D). In order to keep the include directives unchanged, the simplest solution is to generate headers with patterns like "trace/trace-audio.h" and place forwarding headers in the source tree such that for example "audio/trace.h" includes "trace/trace-audio.h". This patch is too ugly to be applied to the Makefiles now. It's only a way to separate the changes to the tracing header files from the Meson rewrite of the tracing logic. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Generate .h file for TCG code generation.
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"""
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__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
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__copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
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__license__ = "GPL version 2 or (at your option) any later version"
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__maintainer__ = "Stefan Hajnoczi"
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__email__ = "stefanha@redhat.com"
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from tracetool import out, Arguments
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import tracetool.vcpu
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def vcpu_transform_args(args):
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assert len(args) == 1
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return Arguments([
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args,
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# NOTE: this name must be kept in sync with the one in "tcg_h"
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# NOTE: Current helper code uses TCGv_env (CPUArchState*)
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("TCGv_env", "__tcg_" + args.names()[0]),
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])
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def generate(events, backend, group):
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if group == "root":
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header = "trace/trace-root.h"
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else:
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header = "trace.h"
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out('/* This file is autogenerated by tracetool, do not edit. */',
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'/* You must include this file after the inclusion of helper.h */',
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'',
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'#ifndef TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
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'#define TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
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'',
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'#include "exec/helper-proto.h"',
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'#include "%s"' % header,
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'',
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)
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for e in events:
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# just keep one of them
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if "tcg-exec" not in e.properties:
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continue
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out('static inline void %(name_tcg)s(%(args)s)',
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'{',
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name_tcg=e.original.api(e.QEMU_TRACE_TCG),
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args=tracetool.vcpu.transform_args("tcg_h", e.original))
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if "disable" not in e.properties:
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args_trans = e.original.event_trans.args
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args_exec = tracetool.vcpu.transform_args(
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"tcg_helper_c", e.original.event_exec, "wrapper")
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if "vcpu" in e.properties:
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trace_cpu = e.args.names()[0]
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cond = "trace_event_get_vcpu_state(%(cpu)s,"\
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" TRACE_%(id)s)"\
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% dict(
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cpu=trace_cpu,
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id=e.original.event_exec.name.upper())
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else:
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cond = "true"
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out(' %(name_trans)s(%(argnames_trans)s);',
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' if (%(cond)s) {',
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' gen_helper_%(name_exec)s(%(argnames_exec)s);',
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' }',
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name_trans=e.original.event_trans.api(e.QEMU_TRACE),
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name_exec=e.original.event_exec.api(e.QEMU_TRACE),
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argnames_trans=", ".join(args_trans.names()),
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argnames_exec=", ".join(args_exec.names()),
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cond=cond)
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out('}')
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out('',
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'#endif /* TRACE_%s_GENERATED_TCG_TRACERS_H */' % group.upper())
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