| /* Coverity Scan model |
| * |
| * Copyright (C) 2014 Red Hat, Inc. |
| * |
| * Authors: |
| * Markus Armbruster <armbru@redhat.com> |
| * Paolo Bonzini <pbonzini@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or, at your |
| * option, any later version. See the COPYING file in the top-level directory. |
| */ |
| /* |
| * This is the source code for our Coverity user model file. The |
| * purpose of user models is to increase scanning accuracy by explaining |
| * code Coverity can't see (out of tree libraries) or doesn't |
| * sufficiently understand. Better accuracy means both fewer false |
| * positives and more true defects. Memory leaks in particular. |
| * |
| * - A model file can't import any header files. Some built-in primitives are |
| * available but not wchar_t, NULL etc. |
| * - Modeling doesn't need full structs and typedefs. Rudimentary structs |
| * and similar types are sufficient. |
| * - An uninitialized local variable signifies that the variable could be |
| * any value. |
| * |
| * The model file must be uploaded by an admin in the analysis settings of |
| * https://scan.coverity.com/projects/54 |
| * |
| * above text is based on https://github.com/qemu/qemu/blob/master/scripts/coverity-model.c |
| */ |
| |
| #define NULL (void *)0 |
| |
| // Based on https://scan.coverity.com/models |
| void *av_malloc(size_t size) { |
| int has_memory; |
| __coverity_negative_sink__(size); |
| if (has_memory) { |
| void *ptr = __coverity_alloc__(size); |
| __coverity_mark_as_uninitialized_buffer__(ptr); |
| __coverity_mark_as_afm_allocated__(ptr, "av_free"); |
| return ptr; |
| } else { |
| return 0; |
| } |
| } |
| |
| void *av_mallocz(size_t size) { |
| int has_memory; |
| __coverity_negative_sink__(size); |
| if (has_memory) { |
| void *ptr = __coverity_alloc__(size); |
| __coverity_writeall0__(ptr); |
| __coverity_mark_as_afm_allocated__(ptr, "av_free"); |
| return ptr; |
| } else { |
| return 0; |
| } |
| } |
| |
| void *av_realloc(void *ptr, size_t size) { |
| int has_memory; |
| __coverity_negative_sink__(size); |
| if (has_memory) { |
| __coverity_escape__(ptr); |
| ptr = __coverity_alloc__(size); |
| __coverity_writeall__(ptr); |
| __coverity_mark_as_afm_allocated__(ptr, "av_free"); |
| return ptr; |
| } else { |
| return 0; |
| } |
| } |
| |
| void *av_free(void *ptr) { |
| __coverity_free__(ptr); |
| __coverity_mark_as_afm_freed__(ptr, "av_free"); |
| } |
| |