https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101669
--- Comment #5 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #4) > What version of gdb are you using? Tried gdb8.1/8.3/9.2 on ppc64le. In gdb, the msg "error reading variable: dwarf2_find_location_expression:" occurs when stopping at the breakpoint 'sub' on the tip message: ------------ Breakpoint 1, 0x0000000100000a58 in sub (a=<error reading variable: dwarf2_find_location_expression: Corrupted DWARF expression.>, n=10) at /home/guojiufu/temp/gdb.f90:7 ------------ readelf --debug-dump arg1.exe |grep readelf readelf: Error: Invalid location list entry type 8 readelf: Warning: Hole and overlap detection requires adjacent view lists and loclists. -------- readelf -v GNU readelf (GNU Binutils for Ubuntu) 2.34 readelf 2.30 can also get the Error/Warning msg. gfortran -O2 -g ~/temp/gdb.f90 -gdwarf-5 -o arg1.exe On x86 is similar, readelf2.30/gdb8.1 can reproduce the msg at my side. Before gcc11, need -gdwarf-5 to reproduce since we default to this dwarf version in gcc11.