Hi Dave; I have a new directory created by the debug commands, which I did not notice when I replied earlier. I have tar'd it up and compressed it and attached it. Hopefully it is useful.
Thanks, Ken On Fri, Aug 1, 2025 at 6:19 PM Kenneth Wolcott <[email protected]> wrote: > > Hi Dave; > > Thanks for the debugging info hint... > > Here's my new ./test_it.bash file: > > cat -n ./test_it.bash > 1 #!/bin/bash > 2 > 3 printf "\nUsing gfortran-mp-14 ...\n" > 4 # gfortran-mp-14 -x none -o ./non_decimal_radices_convert > ./non_decimal_radices_convert.f90 > 5 stem="./non_decimal_radices_convert" > 6 source="${stem}.f90" > 7 gfortran-mp-14 -g -O0 -fbacktrace -fcheck=all -Wall -x none -o > $stem $source > 8 > 9 if [ -f $stem ]; then > 10 $stem > 11 rm $stem > 12 fi > 13 > 14 if [ -f ./conversion.mod ]; then > 15 rm ./conversion.mod > 16 fi > 17 > 18 printf "\nUsing flang-mp-20...\n" > 19 /opt/local/bin/flang-mp-20 -o $stem $source > 20 if [ -f $stem ]; then > 21 $stem > 22 rm $stem > 23 fi > 24 > 25 if [ -f ./conversion.mod ]; then > 26 rm ./conversion.mod > 27 fi > > And here's the output: > > ./test_it.bash > > Using gfortran-mp-14 ... > 26 > > Program received signal SIGBUS: Access to an undefined portion of a > memory object. > > Backtrace for this error: > #0 0x104446083 in ??? > #1 0x104445357 in ??? > #2 0x1850b56a3 in ??? > > Could not print backtrace: DW_FORM_line_strp out of range in .debug_line at 38 > #3 0x104310c67 in ??? > #4 0x104310c67 in ??? > #5 0x104310cc7 in ??? > ./test_it.bash: line 12: 97090 Bus error: 10 $stem > > Using flang-mp-20... > 26 > 1a > > Thanks, > Ken > On Fri, Aug 1, 2025 at 2:31 PM Dave Allured - NOAA Affiliate > <[email protected]> wrote: > > > > This feels like subscript out of bounds. Please add standard gfortran > > debugging options before asking for deeper analysis. In particular, > > `-fcheck=all` will check for most subscripts out of bounds, including > > string indexing. It will then give intelligent legible diagnostics. > > > > `gfortran -g -O0 -fbacktrace -fcheck=all -Wall` > > > > > > On Fri, Aug 1, 2025 at 2:59 PM Kenneth Wolcott <[email protected]> > > wrote: > >> > >> Hi; > >> > >> Weird error from a very short bash script involving gfortran and flang > >> compile/execution... > >> > >> I'm trying to compile and execute a Rosetta Code task written in Fortran: > >> > >> https://rosettacode.org/wiki/Non-decimal_radices/Convert#Fortran > >> > >> ***************************** > >> Here is my ./test_it.bash script: > >> > >> cat -n ./test_it.bash > >> 1 #!/bin/bash > >> 2 > >> 3 printf "\nUsing gfortran-mp-14 ...\n" > >> 4 gfortran-mp-14 -x none -o ./non_decimal_radices_convert > >> ./non_decimal_radices_convert.f90 > >> 5 if [ -f ./non_decimal_radices_convert ]; then > >> 6 ./non_decimal_radices_convert > >> 7 rm ./non_decimal_radices_convert > >> 8 fi > >> 9 > >> 10 printf "\nUsing flang-mp-20...\n" > >> 11 /opt/local/bin/flang-mp-20 -o ./non_decimal_radices_convert > >> ./non_decimal_radices_convert.f90 > >> 12 if [ -f ./non_decimal_radices_convert ]; then > >> 13 ./non_decimal_radices_convert > >> 14 rm ./non_decimal_radices_convert > >> 15 fi > >> > >> ***************************** > >> ***************************** > >> Here are the results: > >> > >> ./test_it.bash > >> > >> Using gfortran-mp-14 ... > >> 26 > >> > >> Program received signal SIGBUS: Access to an undefined portion of a > >> memory object. > >> > >> Backtrace for this error: > >> #0 0x102e520a7 > >> #1 0x102e51357 > >> #2 0x1850b56a3 > >> #3 0x102c7c997 > >> #4 0x102c7c997 > >> #5 0x102c7c9ef > >> ./test_it.bash: line 8: 93614 Bus error: 10 > >> ./non_decimal_radices_convert > >> > >> Using flang-mp-20... > >> 26 > >> 1a > >> ***************************** > >> > >> Was the executable generated by gfortran still executing when I deleted it? > >> > >> Why is there a difference? > >> > >> Is there a bug here? > >> > >> Thanks, > >> Ken Wolcott
non_decimal_radices_convert.dSYM.tar.bz2
Description: BZip2 compressed data
