Debugging a C DLL
Example: sample C program for debugging
Build PUSHPOP.C as
a DLL, exporting
push() and pop().
Build CALC.C and READTOKN.C as the
program that imports push() and pop() from
the DLL named PUSHPOP. When the application CALC starts the
DLL, PUSHPOP will not be known to z/OS® Debugger. Use
the AT APPEARANCE breakpoint to gain control in the
DLL the first time code in that compile unit appears, as shown in
the following example: AT APPEARANCE "USERID.MFISTART.C(PUSHPOP)" ;
GO ;