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WSP DLL issues - 4.4.0
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WSP DLL issues - 4.4.0
by Nathan Schulte
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Hello all, I'm trying to compile a simple LSP(Layered Service Provider).
I am having issues with compiling both C and C++ versions of the DLL on my Windows 7 x64 host. I am using gcc-4.4.0 and mingwrt-3.16 and w32api-3.13. The code for both is very simple, and consists of a DLLMain() and a WSPStartup(). Both output to the file, C:\out, in both DLLMain and WSPStartup, the C version using the C standard library and the C++ version using the C++ standard library. The only other differences are extern "C" declarations in the C++ version. Now, when compiling using: gcc -Wall -shared -o lsp.dll lsp.c -lws2_32 or g++ -Wall -shared -o lsp.dll lsp.cpp -lws2_32 I noticed in the dependency viewer that WSPStartup had @xxx appended to it, and believed this to be a problem. I followed the directions here: http://sei.pku.edu.cn/~caodg/course/c/reference/win32/dll/make.html To make a "relocatable dll", which also seemed to remove the @xxx suffix, and only WSPStartup shows in the dependency viewer. After doing a bit of snooping, I noticed the --add-stdcall-alias ld option, which produces similar results, but simply adds WSPStartup while leaving all of the others. I'm not sure how to properly do this, but I assume either one of these is correct, and have been testing both methods as such. Next, as I could not get my host to work, I tried another available host. I installed mingw on a Windows XP x86 host, and compiled using the same methods. All compilations worked successfully, the C:\out file was created and successfully appended to. I did not try the initial two compilations, the ones without the "relocatable dll" fix described. I also compiled the C++ version using MSVC 9.0 (Visual Studio 2008 SP1, I think I am correct in my naming the compiler MSVC 9.0, but just in case, :P). This also worked successfully on the x86 host. I then proceeded to copy these compiled DLLs and test them on the Windows 7 x64 host, none of them worked. I attempted to run the MSVC compilation, but made the mistake of copying the Debug version of the DLL, and I do not have the MSVC 9.0 Debug DLLs (I refuse to install this toolchain on my own hardware). The host I used is in a remote location, so I cannot recompile the LSP in Release mode without effort, but if it is useful, I can surely take the time to do it. Can someone fill me in on where I have gone awry? Also, a nice explanation of what the "relocatable dll" fix is doing (and how it should be done properly) would be nice (and why the --add-stdcall-alias is slightly different). Thanks for your time! ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ MinGW-users mailing list MinGW-users@... This list observes the Etiquette found at http://www.mingw.org/Mailing_Lists. We ask that you be polite and do the same. Most annoying abuses are: 1) Top posting 2) Thread hijacking 3) HTML/MIME encoded mail 4) Improper quoting 5) Improper trimming _______________________________________________ You may change your MinGW Account Options or unsubscribe at: https://lists.sourceforge.net/lists/listinfo/mingw-users |
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Re: WSP DLL issues - 4.4.0
by Nathan Schulte
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After looking at the DLLs again in Dependency Walker, I noticed something that
didn't look right. The DLLs are showing c:\windows\system32\ws2_32.dll as a dependency. On a 64bit machine, that is the 64bit version of ws2_32.dll, the 32bit version is located at c:\windows\syswow64\ws2_32.dll. Am I correct in my assumption that this dependency setup is an/the issue? ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ MinGW-users mailing list MinGW-users@... This list observes the Etiquette found at http://www.mingw.org/Mailing_Lists. We ask that you be polite and do the same. Most annoying abuses are: 1) Top posting 2) Thread hijacking 3) HTML/MIME encoded mail 4) Improper quoting 5) Improper trimming _______________________________________________ You may change your MinGW Account Options or unsubscribe at: https://lists.sourceforge.net/lists/listinfo/mingw-users |
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Re: WSP DLL issues - 4.4.0
by Tor Lillqvist
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> Am I correct in my assumption that this dependency setup is an/the issue?
Most likely not. If Dependency Walker is a 32-bit program that doesn't specifically ask for the automagic translation of pathnames in the WOW64 environment to be turned off, when it says system32 this actually means syswow64. 64-bit Windows wants to make the directory structure to a 32-bit program under WOW64 look like it is on 32-bit Windows. --tml ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ MinGW-users mailing list MinGW-users@... This list observes the Etiquette found at http://www.mingw.org/Mailing_Lists. We ask that you be polite and do the same. Most annoying abuses are: 1) Top posting 2) Thread hijacking 3) HTML/MIME encoded mail 4) Improper quoting 5) Improper trimming _______________________________________________ You may change your MinGW Account Options or unsubscribe at: https://lists.sourceforge.net/lists/listinfo/mingw-users |
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Re: WSP DLL issues - 4.4.0
by Nathan Schulte
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Tor Lillqvist <tml@...> writes:
> 64-bit Windows wants to make the directory > structure to a 32-bit program under WOW64 look like it is on 32-bit > Windows. Thank you for the clarification, that makes sense. I'm still stumbling as to why WSPStartup is never being called. Perhaps it is the case that you just can't install 32bit DLLs to the 32bit catalog, and that they must indeed be 64bit DLLs. This doesn't seem like it would be true, however, as I am able to install the LSP without the system complaining, which it will normally do if something isn't correct. In my last ditch attempt I am going to install Windows 7 x86 and see if my LSP will work correctly under that host, in addition to compiling under that host and testing on my Windows 7 amd64 host. I initially thought I had stumbled upon the answer, that being the placement of libgcc_s_dw2-1.dll, but this would have no effect on the C version of the LSP, which also fails to work properly. ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ MinGW-users mailing list MinGW-users@... This list observes the Etiquette found at http://www.mingw.org/Mailing_Lists. We ask that you be polite and do the same. Most annoying abuses are: 1) Top posting 2) Thread hijacking 3) HTML/MIME encoded mail 4) Improper quoting 5) Improper trimming _______________________________________________ You may change your MinGW Account Options or unsubscribe at: https://lists.sourceforge.net/lists/listinfo/mingw-users |
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Re: WSP DLL issues - 4.4.0
by Nathan Schulte
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I have resolved this issue.
lpszLspPathAndFile *PathAndFile* Doh! ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ MinGW-users mailing list MinGW-users@... This list observes the Etiquette found at http://www.mingw.org/Mailing_Lists. We ask that you be polite and do the same. Most annoying abuses are: 1) Top posting 2) Thread hijacking 3) HTML/MIME encoded mail 4) Improper quoting 5) Improper trimming _______________________________________________ You may change your MinGW Account Options or unsubscribe at: https://lists.sourceforge.net/lists/listinfo/mingw-users |
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