| 1 | /* slightly changed for use by omalloc.h */ |
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| 2 | /* |
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| 3 | * defines to get the return-address for non-dmalloc_lp malloc calls. |
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| 4 | * |
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| 5 | * Copyright 2000 by Gray Watson |
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| 6 | * |
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| 7 | * This file is part of the dmalloc package. |
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| 8 | * |
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| 9 | * Permission to use, copy, modify, and distribute this software for |
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| 10 | * any purpose and without fee is hereby granted, provided that the |
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| 11 | * above copyright notice and this permission notice appear in all |
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| 12 | * copies, and that the name of Gray Watson not be used in advertising |
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| 13 | * or publicity pertaining to distribution of the document or software |
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| 14 | * without specific, written prior permission. |
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| 15 | * |
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| 16 | * Gray Watson makes no representations about the suitability of the |
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| 17 | * software described herein for any purpose. It is provided "as is" |
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| 18 | * without express or implied warranty. |
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| 19 | * |
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| 20 | * The author may be contacted via http://dmalloc.com/ |
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| 21 | * |
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| 22 | */ |
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| 23 | |
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| 24 | /* |
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| 25 | * This file contains the definition of the GET_RET_ADDR macro which |
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| 26 | * is designed to contain the archecture/compiler specific hacks to |
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| 27 | * determine the return-address from inside the malloc library. With |
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| 28 | * this information, the library can display caller information from |
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| 29 | * calls that do not use the malloc_lp functions. |
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| 30 | * |
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| 31 | * Most of the archectures here have been contributed by other |
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| 32 | * individuals and may need to be toggled a bit to remove local |
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| 33 | * configuration differences. |
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| 34 | * |
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| 35 | * PLEASE send all submissions, comments, problems to the author. |
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| 36 | * |
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| 37 | * NOTE: examining the assembly code for x = |
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| 38 | * __builtin_return_address(0); with gcc version 2+ should give you a |
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| 39 | * good start on building a hack for your box. |
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| 40 | * |
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| 41 | * NOTE: the hacks mentioned above were removed in favor of the GCC macro |
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| 42 | * __builtin_return_address(). Assumptions made in these hacks break for |
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| 43 | * recent GCC versions. |
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| 44 | */ |
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| 45 | |
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| 46 | #ifndef __OM_RETURN_H__ |
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| 47 | #define __OM_RETURN_H__ |
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| 48 | |
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| 49 | |
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| 50 | /********************************** default **********************************/ |
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| 51 | #ifndef GET_RET_ADDR |
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| 52 | |
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| 53 | #if __GNUC__ > 1 |
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| 54 | #ifdef OM_GET_RETURN_ADDR_WORKS |
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| 55 | #define GET_RET_ADDR(file) (file = __builtin_return_address(0)) |
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| 56 | #else |
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| 57 | #define GET_RET_ADDR(file) (file = 0) |
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| 58 | #endif |
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| 59 | #else |
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| 60 | #define GET_RET_ADDR(file) (file = 0) |
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| 61 | #endif |
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| 62 | #endif /* __GNUC__ > 1 */ |
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| 63 | |
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| 64 | #endif /* ! __OM_RETURN_H__ */ |
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