Mercurial > pub > dyncall > dyncall
comparison dyncallback/dyncall_callback_ppc64.c @ 202:030fbb70aa1b
- changed allocwx code:
* to introduce a call allowing to switch the written page to be executable (e.g. using mprotect)
* changed mmap based code so page is always W^X
author | Tassilo Philipp |
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date | Mon, 20 Mar 2017 23:12:58 +0100 |
parents | d48a8b8d2ef9 |
children | 71c884e610f0 |
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201:136409adbdd1 | 202:030fbb70aa1b |
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50 | 50 |
51 DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata) | 51 DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata) |
52 { | 52 { |
53 DCCallback* pcb; | 53 DCCallback* pcb; |
54 int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb); | 54 int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb); |
55 if (err != 0) return 0; | 55 if(err) |
56 return NULL; | |
56 | 57 |
57 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry); | 58 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry); |
58 dcbInitCallback(pcb, signature, handler, userdata); | 59 dcbInitCallback(pcb, signature, handler, userdata); |
60 | |
61 err = dcInitExecWX(pcb, sizeof(DCCallback)); | |
62 if(err) { | |
63 dcFreeWX(pcb, sizeof(DCCallback)); | |
64 return NULL; | |
65 } | |
59 | 66 |
60 return pcb; | 67 return pcb; |
61 } | 68 } |
62 | 69 |
63 void dcbFreeCallback(DCCallback* pcb) | 70 void dcbFreeCallback(DCCallback* pcb) |