There isn't. You must instantiate Language Environment by either making your
Assembler Language routine the main() or calling it from a LE enabled "main".
void main(char * parm)
{
Int rc;
rc = Asmfunc();
}
-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]] On
Behalf Of Joseph Reichman
Sent: Wednesday, July 3, 2019 2:51 PM
To: [email protected]
Subject: Re: C DLL Code from Assembler
*** External email: Verify sender before opening attachments or links ***
I saw reference to DLL’s in the XL C bookshelf
Unlike Windows there doesn’t seem to be a DLLMAIN function
Thanks
> On Jul 3, 2019, at 3:46 PM, Tony Harminc <[email protected]> wrote:
>
>> On Tue, 2 Jul 2019 at 17:24, Joseph Reichman <[email protected]> wrote:
>>
>> I am hoping to have the Assembler Started task code call a C DLL, On
>> the Windows end it would be C/C+ code calling the DLL obviously there
>> are differences because of the platform but I am guessing hose call
>> be handled by #IFDEF
>>
>> In Windows Loading the DLL is a LoadLibrary Api then GetProcAddress
>> to get the exports
>>
>> I am not sure how to do this in Assembler is there a LoadLibrary
>> Macro or a GetProcAddress macro to call the exported function
>
> DLLs are discussed in the LE book _Language Environment Programming
> Guide_ in Chapter 4. Most of the examples and discussions are about C,
> but there are some brief assembler bits. And there is a discussion of
> assembler considerations (not just for DLLs) in Chapter 29, including
> the various macros you need.
>
> To be clear, HLASM *is* explictly a supported language for both
> writing and invoking DLLs under LE. See "Support for DLLs" at the very
> start of Chapter 4.
>
> I haven't played with this for many years, and am not current, but
> other people on this list have written about it - maybe John McKown?
> And there was the Trainer's Friend guy (Steve Comstock?), who gave
> courses on this and related LE matters. He made his course materials
> available for sale when he closed the business. Maybe they are still
> out there? Ah - I see some of it is now on Amazon. Not free, but maybe
> a good deal.
> http://TOC.ASG.COM:8080/?dmVyPTEuMDAxJiY1NDU1NmVlYzI3Nzk4NzhlZT01RDFEMDcxOV85OTE1N185NjNfMSYmNTBjMjY5NGQ5NGMxYTRlPTEyMzImJnVybD1odHRwJTNBJTJGJTJGd3d3JTJFdHJhaW5lcnNmcmllbmQlMkVjb20lMkZ6T1MlMkVzaHRtbA==
> I have no connection, etc...
>
> Tony H.
