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omReturn.h
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/* slightly changed for use by omalloc.h */
/*
* defines to get the return-address for non-dmalloc_lp malloc calls.
*
* Copyright 2000 by Gray Watson
*
* This file is part of the dmalloc package.
*
* Permission to use, copy, modify, and distribute this software for
* any purpose and without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies, and that the name of Gray Watson not be used in advertising
* or publicity pertaining to distribution of the document or software
* without specific, written prior permission.
*
* Gray Watson makes no representations about the suitability of the
* software described herein for any purpose. It is provided "as is"
* without express or implied warranty.
*
* The author may be contacted via http://dmalloc.com/
*
*/
/*
* This file contains the definition of the GET_RET_ADDR macro which
* is designed to contain the archecture/compiler specific hacks to
* determine the return-address from inside the malloc library. With
* this information, the library can display caller information from
* calls that do not use the malloc_lp functions.
*
* Most of the archectures here have been contributed by other
* individuals and may need to be toggled a bit to remove local
* configuration differences.
*
* PLEASE send all submissions, comments, problems to the author.
*
* NOTE: examining the assembly code for x =
* __builtin_return_address(0); with gcc version 2+ should give you a
* good start on building a hack for your box.
*
* NOTE: the hacks mentioned above were removed in favor of the GCC macro
* __builtin_return_address(). Assumptions made in these hacks break for
* recent GCC versions.
*/
#ifndef __OM_RETURN_H__
#define __OM_RETURN_H__
/********************************** default **********************************/
#ifndef GET_RET_ADDR
#if __GNUC__ > 1
#ifdef OM_GET_RETURN_ADDR_WORKS
#define GET_RET_ADDR(file) (file = __builtin_return_address(0))
#else
#define GET_RET_ADDR(file) (file = 0)
#endif
#else
#define GET_RET_ADDR(file) (file = 0)
#endif
#endif /* __GNUC__ > 1 */
#endif /* ! __OM_RETURN_H__ */