platform_bionic/libc/include/bits/fortify/strings.h
Elliott Hughes f4ace9d634 libc/include: remove easy __ANDROID_API__ tautologies.
The next NDK to take these headers only supports API 21 and later, so
clean up some of the trivial cruft.

This doesn't include the remaining "legacy inlines", since they're a bit
more complicated. I'll remove those in later changes.

Test: treehugger
Change-Id: I94c32f6393dd3ae831165917303ea591222baa0d
2023-02-23 17:38:37 +00:00

61 lines
2.4 KiB
C

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