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  1. /* Coverity Scan model
  2. *
  3. * Copyright (C) 2014 Red Hat, Inc.
  4. *
  5. * Authors:
  6. * Markus Armbruster <armbru@redhat.com>
  7. * Paolo Bonzini <pbonzini@redhat.com>
  8. *
  9. * This work is licensed under the terms of the GNU GPL, version 2 or, at your
  10. * option, any later version. See the COPYING file in the top-level directory.
  11. */
  12. /*
  13. * This is the source code for our Coverity user model file. The
  14. * purpose of user models is to increase scanning accuracy by explaining
  15. * code Coverity can't see (out of tree libraries) or doesn't
  16. * sufficiently understand. Better accuracy means both fewer false
  17. * positives and more true defects. Memory leaks in particular.
  18. *
  19. * - A model file can't import any header files. Some built-in primitives are
  20. * available but not wchar_t, NULL etc.
  21. * - Modeling doesn't need full structs and typedefs. Rudimentary structs
  22. * and similar types are sufficient.
  23. * - An uninitialized local variable signifies that the variable could be
  24. * any value.
  25. *
  26. * The model file must be uploaded by an admin in the analysis settings of
  27. * https://scan.coverity.com/projects/54
  28. *
  29. * above text is based on https://github.com/qemu/qemu/blob/master/scripts/coverity-model.c
  30. */
  31.  
  32. #define NULL (void *)0
  33.  
  34. // Based on https://scan.coverity.com/models
  35. void *av_malloc(size_t size) {
  36.     int has_memory;
  37.     __coverity_negative_sink__(size);
  38.     if(has_memory)
  39.         return __coverity_alloc__(size);
  40.     else
  41.         return 0;
  42. }
  43.