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Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64

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On Sep 16, 3:12 pm, Lew <lewbl...@gmail.com> wrote:
> François Rappaz wrote:
> > With XP I could use the following command to successfully get a dll
> > for a JNI application, from the Cygwin shell:
> > g++ -w -mno-cygwin -I"$jdk/include" -I"$jdk/include/win32" -Wl,--add-
> > stdcall-alias -shared -o kbhook.dll kbhook.cpp
>
> > gives a 27 KB kbhook.dll, that works ok.
>
> > With Windows 7, I have setup mingw64-x86_64gcc-g++ in my cygwin
> > framework. When I run the following, from Cygwin:
> > x86_64-w64-mingw32-g++ -w  -mno-cygwin -I"$jdk/include" -I"$jdk/
> > include/win32" -Wl,--add-stdcall-alias -shared -o kbhook64.dll
> > kbhook.cpp
>
> > I have a kbhook64.dll file which is 118 kB.
> > However I still have an error when I tried to use it with my java
> > program.
>
> > Exception in thread "main" java.lang.UnsatisfiedLinkError: U:\docs\OA
> > \articles\z
> > lib\kbhook\kbhook.dll: The specified path is invalid
>
> Is the path valid?  What is the result of
>   ls $(cygpath 'U:\docs\OA\articles\zlib\kbhook\kbhook.dll')
> ?
>
> How is the path to the DLL specified in your code?
>
> Why do you not use forward slashes?
>
> --
> Lew

Hi
$ ls $(cygpath 'u:\docs\OA\articles\zlib\kbhook\kbhook.dll') gives
/cygdrive/u/docs/OA/articles/zlib/kbhook/kbhook.dll

in my java code I call the dll with
  {System.loadLibrary("kbhook");}
as far as know the dll is searched in the system and the current
folder, where it is.
I suspect that the file produced with my compile on W7 is not a dll

Francois

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Compiling a dll for 64-bits W7 with cygwin and mingw-w64 François Rappaz <rappazf@gmail.com> - 2011-09-15 05:41 -0700
  Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 Roedy Green <see_website@mindprod.com.invalid> - 2011-09-15 10:17 -0700
    Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 François Rappaz <rappazf@gmail.com> - 2011-09-16 00:18 -0700
      Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 Roedy Green <see_website@mindprod.com.invalid> - 2011-09-16 14:40 -0700
  Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 Lew <lewbloch@gmail.com> - 2011-09-16 06:12 -0700
    Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 François Rappaz <rappazf@gmail.com> - 2011-09-16 07:32 -0700
      Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 Roedy Green <see_website@mindprod.com.invalid> - 2011-09-16 14:47 -0700
      Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 Roedy Green <see_website@mindprod.com.invalid> - 2011-09-16 16:51 -0700
        Re: Compiling a dll for 64-bits W7 with cygwin and mingw-w64 François Rappaz <rappazf@gmail.com> - 2011-09-22 07:04 -0700

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