Just like PR 1427 for java, GCC forgets to emit DW_AT_entry_point or N_MAIN debug info so a debugger could read it correctly.
-- Summary: gfortran does not emit DW_AT_entry_point (dwarf-2) or N_MAIN (stabs) debugging info Product: gcc Version: 4.1.0 Status: UNCONFIRMED Keywords: wrong-debug Severity: normal Priority: P2 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pinskia at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23280