Sorry guys - I don't know if any of this should work, but I tried to use gdb
with limited success - if the subroutine argument values would have printed, gdb
would have been working well enough to be useful.
[dir:~/tests/gfortran] dir% gfortran -g -o debug debug.f
[dir:~/tests/gfortran] dir% gdb debug
GNU gdb 5.3-20030128 (Apple version gdb-330.1) (Fri Jul 16 21:42:28 GMT 2004)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "powerpc-apple-darwin".
Reading symbols for shared libraries ..... done
(gdb) break sub1_
Breakpoint 1 at 0x1c90: file ../../../gcc/libgfortran/runtime/error.c, line 275.
(gdb) break sub1
Function "sub1" not defined.
(gdb) run
Starting program: /Users/dir/tests/gfortran/debug
Reading symbols for shared libraries ++. done
Error in re-setting breakpoint 1:
Function "sub1_" not defined.
Re-enabling shared library breakpoints: 1
Breakpoint 1, 0x00001c90 in sub1_ (a=Invalid F77 type code 17 in symbol table.
) at debug.f:5
5 subroutine sub1(a,b)
(gdb) s
Current language: auto; currently fortran
sub1_ (a=Invalid F77 type code 17 in symbol table.
) at debug.f:6
6 i=3
(gdb) s
7 write(*,*)a,b
(gdb) print a
$1 = (Invalid type code (17) in symbol table.
(gdb) print b
$2 = (Invalid type code (17) in symbol table.
(gdb) quit
The program is running. Exit anyway? (y or n) y
[dir:~/tests/gfortran] dir% cat debug.f
program main
call sub1(1.0,2.0)
stop
end
subroutine sub1(a,b)
i=3
write(*,*)a,b
return
end
--
Summary: gdb will not print subroutine arguments
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dir at lanl dot gov
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: powerpc-apple-darwin7.8.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20112
