It looks like CEEPCALL is used to call DLL functions.
However I've not gotten it to work yet. This is what I've tried for printf():
prntit2 ceeentry main=YES
ceepcall printf,(fmtstr,3,str),,mf=(E,PARMS3)
ceeterm
ppa ceeppa ,
fmtstr dc c'Test %d: %s.',x'0'
str dc c'one two three',x'0'
ceedsa ,
parms3 ceepcall ,(0,0,0),mf=L
ceecaa ,
end prntit2
It compiles and links (binds), but when I run it the output is "ECTEXT".
-----Original Message-----
From: IBM Mainframe Assembler List <[email protected]> On Behalf
Of Farley, Peter
Sent: Tuesday, June 6, 2023 11:59 AM
To: [email protected]
Subject: [EXTERNAL] Re: Calling C functions from HLASM
GIYF. Using "site:ibm.com ldap_init", the fourth hit leads to IBM
documentation for the z/OS V2.3 "IBM Tivoli Directory Server for z/OS", and one
of the pages there ("Compiling, linking, and running a program") addresses your
questions:
https://urldefense.com/v3/__https://www.ibm.com/docs/en/zos/2.3.0?topic=programming-compiling-linking-running-program*compiling__;Iw!!EP3Ar9QBfU06DzGV!B3gdk9L4qNt8hnODo9FAbhU7yVG9XzojXagK_L4Z_bLfQQjV477tMUQPZrCXoMdK2IQ9OaPxvH7E9BYXXAdLLT6741DOzIp8w1Nrxs_XFJc$
Looks like the C DLL is in the "/usr/lib" directory in the Unix file system
(file name GLDCLDAP) and your binder step needs a "side deck" named GLDCLDAP.x
to get the DLL stub into your executable. No PDS or PDSE library for the
executable code, just the Unix copy.
Welcome to the future.
As I said previously, for how to actually USE that DLL from HLASM you need to
do some serious reading. There may, in fact, be no such specific
documentation, in which case you would have to open a support ticket with IBM
to get help.
Peter
-----Original Message-----
From: IBM Mainframe Assembler List <[email protected]> On Behalf
Of Dave Clark
Sent: Tuesday, June 6, 2023 1:34 PM
To: [email protected]
Subject: Re: Calling C functions from HLASM
"IBM Mainframe Assembler List" <[email protected]> wrote on
06/06/2023 01:04:43 PM:
> Many of the "long name" functions have 8-byte names as alias's.
OK, so how would I find out the aliases for these C functions?
ldap_init
ldap_open
ldap_bind_s
ldap_simple_bind_s
ldap_unbind_s
ldap_search_s
etc.
Sincerely,
Dave Clark
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