Calling CUPS API from REXX DLL causes exception in GCC1 (stack overflow?)

[ataylor]

Opening this ticket to track the issue.

I've started working on a REXX-callable interface to CUPS (rexxcups, currently hosted in ecups/trunk/rexxlib).

Calling a simple function (CupsGetQueues) which works fine in a standalone test exe causes an exception when called via REXX.

12-06-2017  14:39:10  SYS3175  PID 099a  TID 0001  Slot 007e
C:\OS2\CMD.EXE
c0000005
1e8c00e3
P1=00000002  P2=0016fff0  P3=XXXXXXXX  P4=XXXXXXXX  
EAX=0000304c  EBX=004e6aa0  ECX=0016fff0  EDX=00000008
ESI=004e39c0  EDI=00000003  
DS=0053  DSACC=d0f3  DSLIM=5fffffff  
ES=0053  ESACC=d0f3  ESLIM=5fffffff  
FS=150b  FSACC=00f3  FSLIM=00000030
GS=0000  GSACC=****  GSLIM=********
CS:EIP=005b:1e8c00e3  CSACC=d0df  CSLIM=5fffffff
SS:ESP=006b:00175fe4  SSACC=d0f3  SSLIM=5fffffff
EBP=00175ffc  FLG=00010206

GCC1.DLL 0001:000000e3

This may be a result of running out of stack space.

The same general error occurs when building with gcc 4.5.2 or 4.9.2, or linking against cups.dll (RPM) or cups20.dll (Paul).

One possible approach may be to start a new thread (with a large stack) when calling any CUPS function?

[Silvan Scherrer]

hmm does this really belong to ports section? Isn't this a pure REXX dll issue? And btw cups tickets belong to our github issue tracker, as cups was moved to there.

[Silvan Scherrer]

hmm no feedback since several weeks. So I close it. Please reopen with new informations if there are some.