gecko/memory/build/extraMallocFuncs.c

93 lines
1.9 KiB
C

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <string.h>
#include "mozilla/Types.h"
#ifdef ANDROID
#define wrap(a) __wrap_ ## a
#elif defined(XP_WIN) || defined(XP_MACOSX)
#define wrap(a) je_ ## a
#endif
#ifdef wrap
void *wrap(malloc)(size_t);
void wrap(free)(void *);
#endif
#ifdef ANDROID
/* operator new(unsigned int) */
MOZ_EXPORT_API(void *)
wrap(_Znwj)(unsigned int size)
{
return wrap(malloc)(size);
}
/* operator new[](unsigned int) */
MOZ_EXPORT_API(void *)
wrap(_Znaj)(unsigned int size)
{
return wrap(malloc)(size);
}
/* operator delete(void*) */
MOZ_EXPORT_API(void)
wrap(_ZdlPv)(void *ptr)
{
wrap(free)(ptr);
}
/* operator delete[](void*) */
MOZ_EXPORT_API(void)
wrap(_ZdaPv)(void *ptr)
{
wrap(free)(ptr);
}
#endif
#ifdef wrap
MOZ_EXPORT_API(char *)
wrap(strndup)(const char *src, size_t len)
{
char* dst = (char*) wrap(malloc)(len + 1);
if (dst)
strncpy(dst, src, len + 1);
return dst;
}
MOZ_EXPORT_API(char *)
wrap(strdup)(const char *src)
{
size_t len = strlen(src);
return wrap(strndup)(src, len);
}
#ifdef XP_WIN
/*
* There's a fun allocator mismatch in (at least) the VS 2010 CRT
* (see the giant comment in this directory's Makefile.in
* that gets redirected here to avoid a crash on shutdown.
*/
void
wrap(dumb_free_thunk)(void *ptr)
{
return; /* shutdown leaks that we don't care about */
}
#include <wchar.h>
/*
* We also need to provide our own impl of wcsdup so that we don't ask
* the CRT for memory from its heap (which will then be unfreeable).
*/
wchar_t *
wrap(wcsdup)(const wchar_t *src)
{
size_t len = wcslen(src);
wchar_t *dst = (wchar_t*) wrap(malloc)((len + 1) * sizeof(wchar_t));
if (dst)
wcsncpy(dst, src, len + 1);
return dst;
}
#endif /* XP_WIN */
#endif