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do not use aligned_alloc since it requires c11

This commit is contained in:
Mathieu Malaterre 2015-10-10 14:54:21 +02:00
parent 0dc4914b4e
commit 2d410fc74b
2 changed files with 20 additions and 26 deletions
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10
CMakeLists.txt
View File

@ -225,20 +225,16 @@ CHECK_INCLUDE_FILE("unistd.h" HAVE_UNISTD_H)
include(TestLargeFiles)
OPJ_TEST_LARGE_FILES(OPJ_HAVE_LARGEFILES)
# Allocating Aligned Memory Blocks
include(CheckIncludeFiles)
check_include_files(malloc.h HAVE_MALLOC_H)
include(CheckSymbolExists)
# aligned_alloc
set(CMAKE_REQUIRED_FLAGS "-std=c11")
check_symbol_exists(aligned_alloc stdlib.h HAVE_ALIGNED_ALLOC)
unset(CMAKE_REQUIRED_FLAGS)
# _aligned_alloc https://msdn.microsoft.com/en-us/library/8z34s9c6.aspx
check_symbol_exists(_aligned_malloc malloc.h HAVE__ALIGNED_MALLOC)
# memalign
check_symbol_exists(memalign malloc.h HAVE_MEMALIGN)
# posix_memalign
check_symbol_exists(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
# memalign (obsolete)
check_symbol_exists(memalign malloc.h HAVE_MEMALIGN)
#-----------------------------------------------------------------------------
# Build Library
if(BUILD_JPIP_SERVER)

36
src/lib/openjp2/opj_malloc.c
View File

@ -30,36 +30,34 @@
*/
#define OPJ_SKIP_POISON
#include "opj_malloc.h"
#include "opj_config_private.h"
#include <stdlib.h>
static inline void *opj_aligned_alloc(size_t alignment, size_t size)
{
#ifndef HAVE_ALIGNED_ALLOC
/* older linux */
#ifdef HAVE_MEMALIGN
assert( size % alignment == 0 );
return memalign( alignment, size );
#endif /* HAVE_MEMALIGN */
/* _MSC_VER */
#ifdef HAVE__ALIGNED_MALLOC
return _aligned_malloc( alignment, size );
#endif /* HAVE__ALIGNED_MALLOC */
/* MacOSX / clang */
#if defined(HAVE_POSIX_MEMALIGN) && !defined(HAVE_MEMALIGN)
#if defined(HAVE_POSIX_MEMALIGN)
// aligned_alloc requires c11, restrict to posix_memalign for now. Quote:
// This function was introduced in POSIX 1003.1d. Although this function is
// superseded by aligned_alloc, it is more portable to older POSIX systems
// that do not support ISO C11.
void* ptr;
if (posix_memalign (&ptr, alignment, size))
{
ptr = NULL;
}
return ptr;
#endif /* HAVE_POSIX_MEMALIGN */
#else /* HAVE_ALIGNED_ALLOC */
return aligned_alloc( alignment, size );
#endif /* HAVE_ALIGNED_ALLOC */
/* older linux */
#elif defined(HAVE_MEMALIGN)
assert( size % alignment == 0 );
return memalign( alignment, size );
/* _MSC_VER */
#elif defined(HAVE__ALIGNED_MALLOC)
return _aligned_malloc( alignment, size );
#else
/* TODO: _mm_malloc(x,y) */
#error missing aligned alloc function
#endif
}
void * opj_malloc(size_t size)
@ -74,7 +72,7 @@ void * opj_calloc(size_t numOfElements, size_t sizeOfElements)
void *opj_aligned_malloc(size_t size)
{
return opj_aligned_alloc(size,16);
return opj_aligned_alloc(16u,size);
}
void opj_aligned_free(void* ptr)