digitalmars.D.learn - Trying to create a trivial 64 bit D Lang DLL on a Windows 10 machine

WhatMeWorry (33/38) Sep 29 2020 module user;

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (4/7) Sep 30 2020 it is better to use this template

user1234 (6/16) Oct 01 2020 yeah that's the problem, check [0] OP. The author makes

WhatMeWorry (3/21) Oct 01 2020 Yes, but shouldn't the /NOENTRY option take care of that. Say, I

kinke (8/12) Oct 01 2020 Your little example has 2 problems, the first being an

WhatMeWorry (24/40) Oct 01 2020 total = 12

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (3/11) Oct 01 2020 1) try running your commands in Visual Studio Native x64 CMD.

WhatMeWorry (7/24) Oct 02 2020 Yes, I've been doing that.

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (23/48) Oct 02 2020 Here are the steps I used with success:

Imperatorn (2/24) Oct 02 2020 Did you create a D-partition just for D. Pro

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (2/25) Oct 02 2020 Haha. Yes my c compiler is also located at c:\c
rikki cattermole (3/4) Oct 02 2020 You can mount directories as a drive on Windows.

=?UTF-8?B?0JLQuNGC0LDQu9C40Lkg0KTQsNC0?= =?UTF-8?B?0LXQtdCy?= (2/5) Oct 01 2020 As example, DLL: https://github.com/vitalfadeev/dlang-dll

WhatMeWorry <kheaser gmail.com> writes:

module user;

export { int myAddSeven(int a, int b); }

void main()
{
     int total = myAddSeven(2, 3);
}


dmd -m64 -c user.d


module mydll;

export extern(D) {
     int myAddSeven(int a, int b) { return a+b+7; }  /* <-- 
function body */
}

dmd -c -shared -m64  mydll.d

link mydll.obj /DLL /NOENTRY

Microsoft (R) Incremental Linker Version 14.27.29111.0
Copyright (C) Microsoft Corporation.  All rights reserved.

    Creating library mydll.lib and object mydll.exp



link user.obj /implib:mydll.lib

Microsoft (R) Incremental Linker Version 14.27.29111.0
Copyright (C) Microsoft Corporation.  All rights reserved.

LINK : fatal error LNK1104: cannot open file 'phobos64.lib'

or when I give the linker phobos64.lib

link user.obj /implib:mydll.lib /LIBPATH:C:\D\dmd2\windows\lib64

Microsoft (R) Incremental Linker Version 14.27.29111.0
Copyright (C) Microsoft Corporation.  All rights reserved.

user.obj : error LNK2019: unresolved external symbol 
__imp__D4user10myAddSevenFiiZi referenced in function _Dmain
phobos64.lib(stacktrace_1be8_3e5.obj) : error LNK2019: unresolved 
external symbol snprintf referenced in function 
_D4core3sys7windows10stacktrace10StackTrace13resolveNoSyncFAxmZAAa
phobos64.lib(demangle_c96_79b.obj) : error LNK2001: unresolved 
external symbol snprintf
phobos64.lib(parseoptions_e2c_21b.obj) : error LNK2001: 
unresolved external symbol snprintf
phobos64.lib(parseoptions_e2c_21b.obj) : error LNK2019: 
unresolved external symbol sscanf referenced in function 
_D4core8internal12parseoptions5parseFNbNiAxaKANgaKfQkZb
user.exe : fatal error LNK1120: 3 unresolved externals

Sep 29 2020

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Tuesday, 29 September 2020 at 21:22:21 UTC, WhatMeWorry wrote:
 module user;

 export { int myAddSeven(int a, int b); }

 [...]

it is better to use this template 
https://github.com/dlang/dmd/tree/master/samples/mydll

You don't have a DllMain.

Sep 30 2020

user1234 <user1234 12.de> writes:

On Wednesday, 30 September 2020 at 11:45:53 UTC, Ferhat Kurtulmuş 
wrote:
 On Tuesday, 29 September 2020 at 21:22:21 UTC, WhatMeWorry 
 wrote:
 module user;

 export { int myAddSeven(int a, int b); }

 [...]

 it is better to use this template 
 https://github.com/dlang/dmd/tree/master/samples/mydll

 You don't have a DllMain.

yeah that's the problem, check [0] OP. The author makes 
commercial dll on windows so he knows what he speaks about

[0] 
https://forum.dlang.org/post/mscgsclxwtjcferfxoet forum.dlang.org

Oct 01 2020

WhatMeWorry <kheaser gmail.com> writes:

On Thursday, 1 October 2020 at 09:22:29 UTC, user1234 wrote:
 On Wednesday, 30 September 2020 at 11:45:53 UTC, Ferhat 
 Kurtulmuş wrote:
 On Tuesday, 29 September 2020 at 21:22:21 UTC, WhatMeWorry 
 wrote:
 module user;

 export { int myAddSeven(int a, int b); }

 [...]

 it is better to use this template 
 https://github.com/dlang/dmd/tree/master/samples/mydll

 You don't have a DllMain.

 yeah that's the problem, check [0] OP. The author makes 
 commercial dll on windows so he knows what he speaks about

 [0] 
 https://forum.dlang.org/post/mscgsclxwtjcferfxoet forum.dlang.org

Yes, but shouldn't the /NOENTRY option take care of that. Say, I 
just want to make a DLL of simple functions.

Oct 01 2020

kinke <noone nowhere.com> writes:

On Thursday, 1 October 2020 at 20:03:19 UTC, WhatMeWorry wrote:
 Yes, but shouldn't the /NOENTRY option take care of that. Say, 
 I just want to make a DLL of simple functions.

Your little example has 2 problems, the first being an 
incompatible extern(D) ex/import (mydll.myAddSeven vs. 
user.myAddSeven) and the second being an incomplete/wrong linker 
cmdline. When changing the myAddSeven declarations to extern(C++) 
(another option being a mydll.di header for the import), it works 
with

 dmd -m64 -shared -L/NOENTRY mydll.d
 dmd -m64 user.d mydll.lib

For more details, see also https://wiki.dlang.org/Win32_DLLs_in_D.

Oct 01 2020

WhatMeWorry <kheaser gmail.com> writes:

On Thursday, 1 October 2020 at 20:28:58 UTC, kinke wrote:
 On Thursday, 1 October 2020 at 20:03:19 UTC, WhatMeWorry wrote:
 Yes, but shouldn't the /NOENTRY option take care of that. Say, 
 I just want to make a DLL of simple functions.

 Your little example has 2 problems, the first being an 
 incompatible extern(D) ex/import (mydll.myAddSeven vs. 
 user.myAddSeven) and the second being an incomplete/wrong 
 linker cmdline. When changing the myAddSeven declarations to 
 extern(C++) (another option being a mydll.di header for the 
 import), it works with

 dmd -m64 -shared -L/NOENTRY mydll.d
 dmd -m64 user.d mydll.lib

 For more details, see also 
 https://wiki.dlang.org/Win32_DLLs_in_D.


Thanks all. I've gotten it to work with:

dmd -m64 -ofmydll.dll  mydll.d  -L/NOENTRY -L/DLL

dmd -m64 user.d mydll.lib

user.exe

total = 12


But then I got cocky and decided to just added a writeln() in the 
mydll.d file and I've been fighting this link error ever since:

C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\Hostx64\x64\link.exe
/NOLOGO "mydll.obj" /OUT:"mydll.dll"  /DEFAULTLIB:phobos64 /NOENTRY /DLL
/OPT:NOICF  /LIBPATH:"C:\Program Files (x86)\Microsoft Visual
Studio\2019\Community\VC\Tools\MSVC\14.27.29110\lib\x64"
legacy_stdio_definitions.lib /LIBPATH:"C:\Program Files (x86)\Windows
Kits\10\Lib\10.0.18362.0\ucrt\x64" /LIBPATH:"C:\Program Files (x86)\Windows
Kits\10\lib\10.0.18362.0\um\x64"
    Creating library mydll.lib and object mydll.exp
mydll.obj : error LNK2019: unresolved external symbol fwrite 
referenced in function 
_D3std5stdio__T13trustedFwriteTaZQsFNbNiNePOS4core4stdcQBx6_iobufxAaZm
phobos64.lib(object_72_81a.obj) : error LNK2001: unresolved 
external symbol memcpy
phobos64.lib(exception_cf4_fff.obj) : error LNK2001: unresolved 
external symbol memcpy
phobos64.lib(bits_23fa_21c.obj) : error LNK2001: unresolved 
external symbol memcpy
phobos64.lib(gc_2413_a4e.obj) : error LNK2001: unresolved 
external symbol memcpy
phobos64.lib(gc_2415_a03.obj) : error LNK2001: unresolved 
external symbol memcpy
phobos64.lib(gc_2478_432.obj) : error LNK2001: unresolved 
external symbol memcpy
   o  o  o

Oct 01 2020

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Thursday, 1 October 2020 at 21:35:42 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 20:28:58 UTC, kinke wrote:
 [...]


 Thanks all. I've gotten it to work with:

[...]

[...]

[...]

 total = 12

 [...]

1) try running your commands in Visual Studio Native x64 CMD.
2) try link with msvcrt.lib

Oct 01 2020

WhatMeWorry <kheaser gmail.com> writes:

On Thursday, 1 October 2020 at 21:56:46 UTC, Ferhat Kurtulmuş 
wrote:
 On Thursday, 1 October 2020 at 21:35:42 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 20:28:58 UTC, kinke wrote:
 [...]


 Thanks all. I've gotten it to work with:

[...]

[...]

[...]

 total = 12

 [...]

 1) try running your commands in Visual Studio Native x64 CMD.

Yes, I've been doing that.

 2) try link with msvcrt.lib

The only msvcrt.lib I can find on my Windows 10 machine is:

"C:\Windows Kits\10\Lib\10.0.19041.0\um\x64\ntstc_msvcrt.lib"

Also on Microsoft's docs
https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-f
atures?view=vs-2019 it talks about a ucrt.lib?

Oct 02 2020

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Friday, 2 October 2020 at 07:34:03 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 21:56:46 UTC, Ferhat Kurtulmuş 
 wrote:
 On Thursday, 1 October 2020 at 21:35:42 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 20:28:58 UTC, kinke wrote:
 [...]


 Thanks all. I've gotten it to work with:

[...]

[...]

[...]

 total = 12

 [...]

 1) try running your commands in Visual Studio Native x64 CMD.

 Yes, I've been doing that.

 2) try link with msvcrt.lib

 The only msvcrt.lib I can find on my Windows 10 machine is:

 "C:\Windows Kits\10\Lib\10.0.19041.0\um\x64\ntstc_msvcrt.lib"

 Also on Microsoft's docs
 https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-f
atures?view=vs-2019 it talks about a ucrt.lib?

Here are the steps I used with success:

in a VCx64 cmd ->
set PATH=%PATH%;D:\dlang\dmd.2.094.0.windows\dmd2\windows\bin64
------------------------
module user;


import std.stdio;

import mydll; // Yes, I imported the dll here

//export { int myAddSeven(int a, int b); }

void main()
{
     int total = mydll.myAddSeven(2, 3);
     writeln(total);
}
-------------------------
module mydll;

export extern(D) {
     int myAddSeven(int a, int b) { return a+b+7; }  /* <-- 
function body */
}

---------------------------

dmd -m64 -ofmydll.dll  mydll.d  -L/NOENTRY -L/DLL
dmd -m64 user.d mydll.lib

Oct 02 2020

Imperatorn <johan_forsberg_86 hotmail.com> writes:

On Friday, 2 October 2020 at 08:07:33 UTC, Ferhat Kurtulmuş wrote:
 On Friday, 2 October 2020 at 07:34:03 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 21:56:46 UTC, Ferhat Kurtulmuş 
 wrote:
 On Thursday, 1 October 2020 at 21:35:42 UTC, WhatMeWorry 
 wrote:
 [...]

 1) try running your commands in Visual Studio Native x64 CMD.

 Yes, I've been doing that.

 2) try link with msvcrt.lib

 The only msvcrt.lib I can find on my Windows 10 machine is:

 "C:\Windows Kits\10\Lib\10.0.19041.0\um\x64\ntstc_msvcrt.lib"

 Also on Microsoft's docs
 https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-f
atures?view=vs-2019 it talks about a ucrt.lib?

 Here are the steps I used with success:

 in a VCx64 cmd ->
 set PATH=%PATH%;D:\dlang\dmd.2.094.0.windows\dmd2\windows\bin64

Did you create a D-partition just for D. Pro

Oct 02 2020

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Friday, 2 October 2020 at 08:33:25 UTC, Imperatorn wrote:
 On Friday, 2 October 2020 at 08:07:33 UTC, Ferhat Kurtulmuş 
 wrote:
 On Friday, 2 October 2020 at 07:34:03 UTC, WhatMeWorry wrote:
 On Thursday, 1 October 2020 at 21:56:46 UTC, Ferhat Kurtulmuş 
 wrote:
 [...]

 Yes, I've been doing that.

 [...]

 The only msvcrt.lib I can find on my Windows 10 machine is:

 "C:\Windows Kits\10\Lib\10.0.19041.0\um\x64\ntstc_msvcrt.lib"

 Also on Microsoft's docs
 https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-f
atures?view=vs-2019 it talks about a ucrt.lib?

 Here are the steps I used with success:

 in a VCx64 cmd ->
 set PATH=%PATH%;D:\dlang\dmd.2.094.0.windows\dmd2\windows\bin64

 Did you create a D-partition just for D. Pro

Haha. Yes my c compiler is also located at c:\c

Oct 02 2020

rikki cattermole <rikki cattermole.co.nz> writes:

On 02/10/2020 9:33 PM, Imperatorn wrote:
 Did you create a D-partition just for D. Pro

You can mount directories as a drive on Windows.

https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/subst

Oct 02 2020

=?UTF-8?B?0JLQuNGC0LDQu9C40Lkg0KTQsNC0?= =?UTF-8?B?0LXQtdCy?= writes:

On Tuesday, 29 September 2020 at 21:22:21 UTC, WhatMeWorry wrote:
 module user;

 export { int myAddSeven(int a, int b); }

 [...]

As example, DLL: https://github.com/vitalfadeev/dlang-dll

Oct 01 2020

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digitalmars.D.learn - Trying to create a trivial 64 bit D Lang DLL on a Windows 10 machine