Mercurial > pub > dyncall > dyncall
view dyncallback/dyncall_callback_ppc64.c @ 472:e5820b7a3fbc
doc:
- some more plan 9 disas examples
- x86 callconv doc updated:
* mainly info about aggregate passing and returning
* removing section about pascal calling convention, as dyncall doesn't support 16bit abis
- some cleanups
author | Tassilo Philipp |
---|---|
date | Thu, 10 Feb 2022 17:32:05 +0100 |
parents | 030fbb70aa1b |
children | 71c884e610f0 |
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/* Package: dyncall Library: dyncallback File: dyncallback/dyncall_callback_ppc64.c Description: Callback - Implementation Header for ppc64 License: Copyright (c) 2014-2016 Masanori Mitsugi <mitsugi@linux.vnet.ibm.com> Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "dyncall_callback.h" #include "dyncall_alloc_wx.h" #include "dyncall_thunk.h" /* Callback symbol. */ extern void dcCallbackThunkEntry(); struct DCCallback /* ELF v1 | ELF v2 */ { /* ------------------+------------------ */ DCThunk thunk; /* offset 0 size 64 | offset 0 size 48 */ DCCallbackHandler* handler; /* offset 64 size 8 | offset 48 size 8 */ size_t stack_cleanup; /* offset 72 size 8 | offset 56 size 8 */ void* userdata; /* offset 80 size 8 | offset 64 size 8 */ }; void dcbInitCallback(DCCallback* pcb, const char* signature, DCCallbackHandler* handler, void* userdata) { const char* ptr; char ch; pcb->handler = handler; pcb->userdata = userdata; } DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata) { DCCallback* pcb; int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb); if(err) return NULL; dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry); dcbInitCallback(pcb, signature, handler, userdata); err = dcInitExecWX(pcb, sizeof(DCCallback)); if(err) { dcFreeWX(pcb, sizeof(DCCallback)); return NULL; } return pcb; } void dcbFreeCallback(DCCallback* pcb) { dcFreeWX(pcb, sizeof(DCCallback)); } void* dcbGetUserData(DCCallback* pcb) { return pcb->userdata; }