Hash :
d2e996fa
Author :
Date :
2018-03-14T10:36:14
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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_alloc_h__
#define INCLUDE_alloc_h__
#include "common.h"
#if defined(GIT_MSVC_CRTDBG)
/* Enable MSVC CRTDBG memory leak reporting.
*
* We DO NOT use the "_CRTDBG_MAP_ALLOC" macro described in the MSVC
* documentation because all allocs/frees in libgit2 already go through
* the "git__" routines defined in this file. Simply using the normal
* reporting mechanism causes all leaks to be attributed to a routine
* here in util.h (ie, the actual call to calloc()) rather than the
* caller of git__calloc().
*
* Therefore, we declare a set of "git__crtdbg__" routines to replace
* the corresponding "git__" routines and re-define the "git__" symbols
* as macros. This allows us to get and report the file:line info of
* the real caller.
*
* We DO NOT replace the "git__free" routine because it needs to remain
* a function pointer because it is used as a function argument when
* setting up various structure "destructors".
*
* We also DO NOT use the "_CRTDBG_MAP_ALLOC" macro because it causes
* "free" to be remapped to "_free_dbg" and this causes problems for
* structures which define a field named "free".
*
* Finally, CRTDBG must be explicitly enabled and configured at program
* startup. See tests/main.c for an example.
*/
#include "win32/w32_crtdbg_stacktrace.h"
#define git__malloc(len) git__crtdbg__malloc(len, __FILE__, __LINE__)
#define git__calloc(nelem, elsize) git__crtdbg__calloc(nelem, elsize, __FILE__, __LINE__)
#define git__strdup(str) git__crtdbg__strdup(str, __FILE__, __LINE__)
#define git__strndup(str, n) git__crtdbg__strndup(str, n, __FILE__, __LINE__)
#define git__substrdup(str, n) git__crtdbg__substrdup(str, n, __FILE__, __LINE__)
#define git__realloc(ptr, size) git__crtdbg__realloc(ptr, size, __FILE__, __LINE__)
#define git__reallocarray(ptr, nelem, elsize) git__crtdbg__reallocarray(ptr, nelem, elsize, __FILE__, __LINE__)
#define git__mallocarray(nelem, elsize) git__crtdbg__mallocarray(nelem, elsize, __FILE__, __LINE__)
#define git__free git__crtdbg__free
#else
#include "stdalloc.h"
#define git__malloc(len) git__stdalloc__malloc(len)
#define git__calloc(nelem, elsize) git__stdalloc__calloc(nelem, elsize)
#define git__strdup(str) git__stdalloc__strdup(str)
#define git__strndup(str, n) git__stdalloc__strndup(str, n)
#define git__substrdup(str, n) git__stdalloc__substrdup(str, n)
#define git__realloc(ptr, size) git__stdalloc__realloc(ptr, size)
#define git__reallocarray(ptr, nelem, elsize) git__stdalloc__reallocarray(ptr, nelem, elsize)
#define git__mallocarray(nelem, elsize) git__stdalloc__mallocarray(nelem, elsize)
#define git__free git__stdalloc__free
#endif /* !MSVC_CTRDBG */
#endif