OBJECT and PUNCH exit—OBJEXIT
If you specify EXIT(OBJEXIT(MYEXIT)), the exit allows the assembler to open the object and punch data sets. The exit issues a WTO for each object record written to the object and punch data set.
If you specify EXIT(OBJEXIT(MYEXIT(EXIT))), the exit opens the object and punch data set. The exit issues a WTO for each object record passed to the exit.