Fortran currently lowercases all the identifiers for DWARF. In such case it should set DW_AT_identifier_case = DW_ID_down_case. GDB currently assumes DW_ID_down_case for DW_LANG_Fortran* which is incorrect, consumer should always default to DW_ID_case_sensitive according to DWARF4.
Fortran should preserve source file case and set DW_AT_identifier_case = DW_ID_case_insensitive GDB currently does not support it though, it is filed as: http://sourceware.org/bugzilla/show_bug.cgi?id=11560 -- Summary: fortran: Use DW_AT_identifier_case Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jan dot kratochvil at redhat dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43950
