908814a575
Implement the bzero function as an alternative to macro expansion. and support gcc FORTIFY_SOURCE features for nuttx libc This function will use gcc's function __builtin_dynamic_object_size and __builtin_object_size Its function is to obtain the size of the object through compilation, so as to judge whether there are out-of-bounds operations in commonly used functions. It should be noted that the option -O2 and above is required to enable this function Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/****************************************************************************
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* libs/libc/string/lib_bzero.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <strings.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: bzero
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****************************************************************************/
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void bzero(FAR void *s, size_t n)
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{
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memset(s, 0, n);
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}
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