annotate dyncallback/dyncall_callback_ppc32.c @ 533:71c884e610f0

- integration of patches from Raphael Luba, Thekla, Inc.: * integration of aggregate-by-value (struct, union) support patch for x64 (win and sysv) * windows/x64 asm additions to specify how stack unwinds (help for debuggers, exception handling, etc.) * see Changelog for details - new calling convention modes for thiscalls (platform agnostic, was specific before) * new signature character for platform agnostic thiscalls ('*' / DC_SIGCHAR_CC_THISCALL) - dcCallF(), dcVCallF(), dcArgF() and dcVArgF(): * added support for aggregates-by-value (wasn't part of patch) * change that those functions don't implicitly call dcReset() anymore, which was unflexible (breaking change) - added macros to feature test implementation for aggregate-by-value and syscall support - changed libdyncall_s.lib and libdyncallback_s.lib order in callback test makefiles, as some toolchains are picky about order - doc: * man page updates to describe aggregate interface * manual overview changes to highlight platforms with aggregate-by-value support - test/plain: replaced tests w/ old/stale sctruct interface with new aggregate one
author Tassilo Philipp
date Thu, 21 Apr 2022 13:35:47 +0200
parents f5577f6bf97a
children
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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_ppc32.c
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6 Description: Callback - Implementation Header for ppc32
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7 License:
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8
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9 Copyright (c) 2007-2022 Daniel Adler <dadler@uni-goettingen.de>,
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10 Tassilo Philipp <tphilipp@potion-studios.com>
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11
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12 Permission to use, copy, modify, and distribute this software for any
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13 purpose with or without fee is hereby granted, provided that the above
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14 copyright notice and this permission notice appear in all copies.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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23
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24 */
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25
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27 #include "dyncall_callback.h"
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28 #include "dyncall_alloc_wx.h"
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29 #include "dyncall_thunk.h"
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32 /* Callback symbol. */
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33 extern void dcCallbackThunkEntry();
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34
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35 struct DCCallback
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36 {
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37 DCThunk thunk; /* offset 0 size 24 */
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38 DCCallbackHandler* handler; /* offset 24 size 4 */
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39 size_t stack_cleanup; /* offset 28 size 4 */
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40 void* userdata; /* offset 32 size 4 */
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41 }; /* total size 36 */
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44 void dcbInitCallback2(DCCallback* pcb, const DCsigchar* signature, DCCallbackHandler* handler, void* userdata, DCaggr *const * aggrs)
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45 {
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46 pcb->handler = handler;
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47 pcb->userdata = userdata;
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48 }
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51 DCCallback* dcbNewCallback2(const DCsigchar* signature, DCCallbackHandler* handler, void* userdata, DCaggr *const * aggrs)
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52 {
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53 DCCallback* pcb;
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54 int err = dcAllocWX(sizeof(DCCallback), (void**)&pcb);
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55 if(err)
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56 return NULL;
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58 dcbInitCallback2(pcb, signature, handler, userdata, aggrs);
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59 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry);
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60
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61 err = dcInitExecWX(pcb, sizeof(DCCallback));
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62 if(err) {
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63 dcFreeWX(pcb, sizeof(DCCallback));
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64 return NULL;
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65 }
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67 return pcb;
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68 }
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69