$! Command to build the gdb stub $cc /debug/noopt /pointer=64 gdbstub +sys$library:sys$lib_c.tlb/lib $ link/notraceback/sysexe/map=gdbstub.map/full/share=gdbstub.exe gdbstub,sys$inp ut/opt $deck cluster=gdbzero collect=gdbzero, XFER_PSECT $eod $ search /nowarnings gdbstub.map "DECC$" $! Example of use. $ DEFINE /nolog LIB$DEBUG sys$login:gdbstub.exe