scripts/tracetool/format/tcg_h.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5 Generate .h file for TCG code generation.
   6 """
   7
   8 __author__     = "Lluís Vilanova <[email protected]>"
   9 __copyright__  = "Copyright 2012-2016, Lluís Vilanova <[email protected]>"
  10 __license__    = "GPL version 2 or (at your option) any later version"
  11
  12 __maintainer__ = "Stefan Hajnoczi"
  13 __email__      = "[email protected]"
  14
  15
  16 from tracetool import out, Arguments
  17 import tracetool.vcpu
  18
  19
  20 def vcpu_transform_args(args):
  21     assert len(args) == 1
  22     return Arguments([
  23         args,
  24         # NOTE: this name must be kept in sync with the one in "tcg_h"
  25         # NOTE: Current helper code uses TCGv_env (CPUArchState*)
  26         ("TCGv_env", "__tcg_" + args.names()[0]),
  27     ])
  28
  29
  30 def generate(events, backend, group):
  31     if group == "root":
  32         header = "trace-root.h"
  33     else:
  34         header = "trace.h"
  35
  36     out('/* This file is autogenerated by tracetool, do not edit. */',
  37         '/* You must include this file after the inclusion of helper.h */',
  38         '',
  39         '#ifndef TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
  40         '#define TRACE_%s_GENERATED_TCG_TRACERS_H' % group.upper(),
  41         '',
  42         '#include "exec/helper-proto.h"',
  43         '',
  44         )
  45
  46     for e in events:
  47         # just keep one of them
  48         if "tcg-trans" not in e.properties:
  49             continue
  50
  51         out('static inline void %(name_tcg)s(%(args)s)',
  52             '{',
  53             name_tcg=e.original.api(e.QEMU_TRACE_TCG),
  54             args=tracetool.vcpu.transform_args("tcg_h", e.original))
  55
  56         if "disable" not in e.properties:
  57             args_trans = e.original.event_trans.args
  58             args_exec = tracetool.vcpu.transform_args(
  59                 "tcg_helper_c", e.original.event_exec, "wrapper")
  60             out('    %(name_trans)s(%(argnames_trans)s);',
  61                 '    gen_helper_%(name_exec)s(%(argnames_exec)s);',
  62                 name_trans=e.original.event_trans.api(e.QEMU_TRACE),
  63                 name_exec=e.original.event_exec.api(e.QEMU_TRACE),
  64                 argnames_trans=", ".join(args_trans.names()),
  65                 argnames_exec=", ".join(args_exec.names()))
  66
  67         out('}')
  68
  69     out('',
  70         '#endif /* TRACE_%s_GENERATED_TCG_TRACERS_H */' % group.upper())