Assembler reentrant entry and exit linkage
To see an example of how to code the reentrant entry and exit linkage
for a local assembler check routine, see sample
check HZSSCHKR in SYS1.SAMPLIB. For more information about entry and
exit linkage, see the following topics in z/OS MVS Programming: Assembler Services Guide:
Note that for Metal C checks, you do not have to specify this assembler linkage. All you need to do is specify compiler option RENT - See Building Metal C checks.