c74a2e1297
Summary: In 32 bit builds on a 64 bit system `std::malloc` does not return correctly aligned memory. This leads to undefined behavior. This patch switches to using `posix_memalign` to allocate correctly aligned memory instead. Reviewers: mclow.lists, danalbert, jroelofs, compnerd Reviewed By: compnerd Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D25417 llvm-svn: 296952
30 lines
899 B
C++
30 lines
899 B
C++
//===------------------------- fallback_malloc.h --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _FALLBACK_MALLOC_H
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#define _FALLBACK_MALLOC_H
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#include "__cxxabi_config.h"
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#include <cstddef> // for size_t
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namespace __cxxabiv1 {
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// Allocate some memory from _somewhere_
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_LIBCXXABI_HIDDEN void * __aligned_malloc_with_fallback(size_t size);
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// Allocate and zero-initialize memory from _somewhere_
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_LIBCXXABI_HIDDEN void * __calloc_with_fallback(size_t count, size_t size);
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_LIBCXXABI_HIDDEN void __aligned_free_with_fallback(void *ptr);
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_LIBCXXABI_HIDDEN void __free_with_fallback(void *ptr);
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} // namespace __cxxabiv1
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#endif
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