You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.5 KiB
76 lines
2.5 KiB
4 months ago
|
/*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------===
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*
|
||
|
|
*===-----------------------------------------------------------------------===
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __MM_MALLOC_H
|
||
|
|
#define __MM_MALLOC_H
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
#include <malloc.h>
|
||
|
|
#else
|
||
|
|
#ifndef __cplusplus
|
||
|
|
extern int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
|
||
|
|
#else
|
||
|
|
// Some systems (e.g. those with GNU libc) declare posix_memalign with an
|
||
|
|
// exception specifier. Via an "egregious workaround" in
|
||
|
|
// Sema::CheckEquivalentExceptionSpec, Clang accepts the following as a valid
|
||
|
|
// redeclaration of glibc's declaration.
|
||
|
|
extern "C" int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !(defined(_WIN32) && defined(_mm_malloc))
|
||
|
|
static __inline__ void *__attribute__((__always_inline__, __nodebug__,
|
||
|
|
__malloc__))
|
||
|
|
_mm_malloc(size_t __size, size_t __align)
|
||
|
|
{
|
||
|
|
if (__align == 1) {
|
||
|
|
return malloc(__size);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(__align & (__align - 1)) && __align < sizeof(void *))
|
||
|
|
__align = sizeof(void *);
|
||
|
|
|
||
|
|
void *__mallocedMemory;
|
||
|
|
#if defined(__MINGW32__)
|
||
|
|
__mallocedMemory = __mingw_aligned_malloc(__size, __align);
|
||
|
|
#elif defined(_WIN32)
|
||
|
|
__mallocedMemory = _aligned_malloc(__size, __align);
|
||
|
|
#else
|
||
|
|
if (posix_memalign(&__mallocedMemory, __align, __size))
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return __mallocedMemory;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ void __attribute__((__always_inline__, __nodebug__))
|
||
|
|
_mm_free(void *__p)
|
||
|
|
{
|
||
|
|
free(__p);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __MM_MALLOC_H */
|