annotate dyncallback/dyncall_callback_ppc64.c @ 27:523c45dfa8fb

- refactored arm calling conventions' callvm code, so that the code that keeps the caller from overwriting the return value on some platforms also works on OpenBSD (before we casted the function pointer to have long long as return type, to hint the caller that there is one, but that triggers an intentional SIGABRT on OpenBSD for security reasons; now the decl reflects this, directly)
author cslag
date Tue, 15 Sep 2015 12:48:52 +0200
parents 3e629dc19168
children d48a8b8d2ef9
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1 /*
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2
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3 Package: dyncall
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4 Library: dyncallback
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5 File: dyncallback/dyncall_callback_ppc64.c
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6 Description: Callback - Implementation Header for ppc64
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7 License:
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8
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9 Copyright (c) 2014-2015 Masanori Mitsugi <mitsugi@linux.vnet.ibm.com>
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10
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11 Permission to use, copy, modify, and distribute this software for any
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12 purpose with or without fee is hereby granted, provided that the above
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13 copyright notice and this permission notice appear in all copies.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 */
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24
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25
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26 #include "dyncall_callback.h"
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27 #include "dyncall_callback_ppc64.h"
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28
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29 void dcbInitCallback(DCCallback* pcb, const char* signature, DCCallbackHandler* handler, void* userdata)
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30 {
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31 const char* ptr;
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32 char ch;
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33
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34 pcb->handler = handler;
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35 pcb->userdata = userdata;
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36 }
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37
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38 extern void dcCallbackThunkEntry();
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39
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40 DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata)
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41 {
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42 DCCallback* pcb;
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43 int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb);
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44 if (err != 0) return 0;
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45
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46 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry);
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47 dcbInitCallback(pcb, signature, handler, userdata);
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48
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49 return pcb;
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50 }
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51
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52 void dcbFreeCallback(DCCallback* pcb)
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53 {
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54 dcFreeWX(pcb, sizeof(DCCallback));
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55 }
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56
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57 void* dcbGetUserData(DCCallback* pcb)
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58 {
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59 return pcb->userdata;
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60 }