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 | #define GET_RET_ADDR(file) (file = __builtin_return_address(0)) |
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55 | #else |
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56 | #define GET_RET_ADDR(file) (file = 0) |
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57 | #endif |
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58 | #endif /* __GNUC__ > 1 */ |
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59 | |
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60 | #endif /* ! __OM_RETURN_H__ */ |
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