355956fb57
Reference: https://pubs.opengroup.org/onlinepubs/7908799/xsh/valloc.html Change-Id: Ieb425a77b0a8d758956996d201223a0050ae4920 Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
/****************************************************************************
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* mm/umm_heap/umm_valloc.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 <stdlib.h>
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#include <unistd.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: valloc
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*
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* Description:
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* valloc - page-aligned memory allocator (OBSOLETE/LEGACY)
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*
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* valloc has the same effect as malloc(), except that the allocated
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* memory is aligned to a page boundary.
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*
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* Input Parameters:
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* size - Specifies the size (in bytes) of the allocated block of memory.
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* If size is zero, a unique pointer to the heap is returned.
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*
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* Returned Value:
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* The address of the allocated memory (NULL on failure to allocate)
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*
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****************************************************************************/
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FAR void *valloc(size_t size)
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{
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return memalign(sysconf(_SC_PAGESIZE), size);
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}
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