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/* ===-- clear_cache.c - Implement __clear_cache ---------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is distributed under the University of Illinois Open Source
* License. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*/
#include "int_lib.h"
#include <stdlib.h>
#if __APPLE__
#include <libkern/OSCacheControl.h>
#endif
/*
* The compiler generates calls to __clear_cache() when creating
* trampoline functions on the stack for use with nested functions.
* It is expected to invalidate the instruction cache for the
* specified range.
*/
void __clear_cache(void* start, void* end)
{
#if __i386__ || __x86_64__
/*
* Intel processors have a unified instruction and data cache
* so there is nothing to do
*/
#else
#if __APPLE__
/* On Darwin, sys_icache_invalidate() provides this functionality */
sys_icache_invalidate(start, end-start);
#else
compilerrt_abort();
#endif
#endif
}
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