http://d.puremagic.com/issues/show_bug.cgi?id=2462
Summary: DMD creates a wrong DLL so loading a DLL in the context of another Process via loadlibrary will crash the remote process Product: D Version: 1.036 Platform: PC URL: http://tango.pastebin.com/f7037e2fe OS/Version: Windows Status: NEW Severity: normal Priority: P3 Component: DMD AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] DMD creates a wrong DLL. My code can be found here: http://tango.pastebin.com/f7037e2fe Further information: TestDll.dll (memaddress) 0x1000B786 (HEX) 8B0C 9E (ASM)MOV ECX,DWORD PTR DS:[ESI+EBX*4] changed to (memaddress) 0x1000B786 (HEX) 8B0E 90 (ASM)MOV ECX,DWORD PTR DS:[ESI] If I don't change it, it would crash with a access violation while trying to read 0x80**0009 ASM 0x1000B770 53 PUSH EBX 0x1000B771 8B4424 08 MOV EAX,DWORD PTR SS:[ESP+8] 0x1000B775 8B10 MOV EDX,DWORD PTR DS:[EAX] 0x1000B777 56 PUSH ESI 0x1000B778 3B51 04 CMP EDX,DWORD PTR DS:[ECX+4] 0x1000B77B 77 13 JA SHORT TestDll.1000B790 0x1000B77D 8D5A FF LEA EBX,DWORD PTR DS:[EDX-1] ; EBX will be set to FFFFFFFF 0x1000B780 C1EB 03 SHR EBX,3 ; EBX bits will be shifted 3 times to the right will be 1FFFFFFF 0x1000B783 50 PUSH EAX 0x1000B784 8B31 MOV ESI,DWORD PTR DS:[ECX] ; this is the right address 0x00A9000C 0x1000B786 8B0C9E MOV ECX,DWORD PTR DS:[ESI+EBX*4] ; EBX should be 00000000 at this point but ESI+EBX*4 is 0x80A90008 0x1000B789 E8 BE160000 CALL TestDll.1000CE4C Registers at 0x1000B786 EAX 10015D07 TestDll.10015D07 ECX 100185F4 TestDll.100185F4 EDX 00000000 EBX 1FFFFFFF ESP 00A8FE84 EBP 00A8FEAC ESI 00A9000C EDI 00000000 EIP 1000B786 TestDll.1000B786 C 1 ES 0023 32bit 0(FFFFFFFF) P 1 CS 001B 32bit 0(FFFFFFFF) A 0 SS 0023 32bit 0(FFFFFFFF) Z 0 DS 0023 32bit 0(FFFFFFFF) S 0 FS 0038 32bit 7FFDE000(FFF) T 0 GS 0000 NULL D 0 O 0 LastErr ERROR_INVALID_HANDLE (00000006) EFL 00010207 (NO,B,NE,BE,NS,PE,GE,G) ST0 empty +UNORM 51C0 00140558 00143C98 ST1 empty +UNORM 000C 00143AB8 00140178 ST2 empty +UNORM 0178 00000000 001451C0 ST3 empty +UNORM 4998 00143C98 00250688 ST4 empty 0.0379690874344696950e-4933 ST5 empty -UNORM FBA8 00250708 008A1410 ST6 empty 0.0379913815966686790e-4933 ST7 empty +UNORM 0178 0012FC7C 00000000 3 2 1 0 E S P U O Z D I FST 0000 Cond 0 0 0 0 Err 0 0 0 0 0 0 0 0 (GT) FCW 027F Prec NEAR,53 Mask 1 1 1 1 1 1 So I think at 0x1000B876 EBX should be 00000000 Maybe its a alignment error? I adjusted the ASM to MOV ECX,DWORD PTR DS:[ESI] that will work for me but there will be no Beep when loading the DLL. --