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comparison dyncallback/dyncall_callback_sparc32.c @ 202:030fbb70aa1b

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- 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
date Mon, 20 Mar 2017 23:12:58 +0100
parents bbefb8b8e74c
children f5577f6bf97a
comparison
equal deleted inserted replaced
201:136409adbdd1 202:030fbb70aa1b
47 47
48 DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata) 48 DCCallback* dcbNewCallback(const char* signature, DCCallbackHandler* handler, void* userdata)
49 { 49 {
50 DCCallback* pcb; 50 DCCallback* pcb;
51 int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb); 51 int err = dcAllocWX(sizeof(DCCallback), (void**) &pcb);
52 if (err != 0) return 0; 52 if(err)
53 return NULL;
53 54
54 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry); 55 dcbInitThunk(&pcb->thunk, dcCallbackThunkEntry);
55 dcbInitCallback(pcb, signature, handler, userdata); 56 dcbInitCallback(pcb, signature, handler, userdata);
57
58 err = dcInitExecWX(pcb, sizeof(DCCallback));
59 if(err) {
60 dcFreeWX(pcb, sizeof(DCCallback));
61 return NULL;
62 }
56 63
57 return pcb; 64 return pcb;
58 } 65 }
59 66
60 void dcbFreeCallback(DCCallback* pcb) 67 void dcbFreeCallback(DCCallback* pcb)