61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*
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* Copyright (C) 2019 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(__BIONIC_FORTIFY)
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__BIONIC_FORTIFY_INLINE
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void __bionic_bcopy(const void * _Nonnull src, void* _Nonnull const dst __pass_object_size0, size_t len)
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__overloadable
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__clang_error_if(__bos_unevaluated_lt(__bos0(dst), len),
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"'bcopy' called with size bigger than buffer") {
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#if __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED
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size_t bos = __bos0(dst);
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if (!__bos_trivially_ge(bos, len)) {
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__builtin___memmove_chk(dst, src, len, bos);
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return;
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}
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#endif
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__builtin_memmove(dst, src, len);
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}
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__BIONIC_FORTIFY_INLINE
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void __bionic_bzero(void* _Nonnull const b __pass_object_size0, size_t len)
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__overloadable
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__clang_error_if(__bos_unevaluated_lt(__bos0(b), len),
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"'bzero' called with size bigger than buffer") {
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#if __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED
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size_t bos = __bos0(b);
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if (!__bos_trivially_ge(bos, len)) {
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__builtin___memset_chk(b, 0, len, bos);
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return;
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}
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#endif
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__builtin_memset(b, 0, len);
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}
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#endif /* defined(__BIONIC_FORTIFY) */
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