tcg_helper_wrapper_h.py 2.1 KB

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  1. # -*- coding: utf-8 -*-
  2. """
  3. Generate trace/generated-helpers-wrappers.h.
  4. """
  5. __author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
  6. __copyright__ = "Copyright 2012-2016, Lluís Vilanova <vilanova@ac.upc.edu>"
  7. __license__ = "GPL version 2 or (at your option) any later version"
  8. __maintainer__ = "Stefan Hajnoczi"
  9. __email__ = "stefanha@redhat.com"
  10. from tracetool import out
  11. from tracetool.transform import *
  12. import tracetool.vcpu
  13. def generate(events, backend, group):
  14. events = [e for e in events
  15. if "disable" not in e.properties]
  16. out('/* This file is autogenerated by tracetool, do not edit. */',
  17. '',
  18. '#define tcg_temp_new_nop(v) (v)',
  19. '#define tcg_temp_free_nop(v)',
  20. '',
  21. )
  22. for e in events:
  23. if "tcg-exec" not in e.properties:
  24. continue
  25. # tracetool.generate always transforms types to host
  26. e_args = tracetool.vcpu.transform_args("tcg_helper_c", e.original, "wrapper")
  27. # mixed-type to TCG helper bridge
  28. args_tcg_compat = e_args.transform(HOST_2_TCG_COMPAT)
  29. code_new = [
  30. "%(tcg_type)s __%(name)s = %(tcg_func)s(%(name)s);" %
  31. {"tcg_type": transform_type(type_, HOST_2_TCG),
  32. "tcg_func": transform_type(type_, HOST_2_TCG_TMP_NEW),
  33. "name": name}
  34. for (type_, name) in args_tcg_compat
  35. ]
  36. code_free = [
  37. "%(tcg_func)s(__%(name)s);" %
  38. {"tcg_func": transform_type(type_, HOST_2_TCG_TMP_FREE),
  39. "name": name}
  40. for (type_, name) in args_tcg_compat
  41. ]
  42. gen_name = "gen_helper_" + e.api()
  43. out('static inline void %(name)s(%(args)s)',
  44. '{',
  45. ' %(code_new)s',
  46. ' %(proxy_name)s(%(tmp_names)s);',
  47. ' %(code_free)s',
  48. '}',
  49. name=gen_name,
  50. args=e_args,
  51. proxy_name=gen_name + "_proxy",
  52. code_new="\n ".join(code_new),
  53. code_free="\n ".join(code_free),
  54. tmp_names=", ".join(["__%s" % name for _, name in e_args]),
  55. )