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| Title: | Digital Ladebug debugger |
|
| Moderator: | TLE::LUCIA |
|
| Created: | Fri Feb 28 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 969 |
| Total number of notes: | 3959 |
949.0. "F90 program trips infinite loop" by GEMGRP::MONTELEONE () Thu May 08 1997 08:35
There is a regression between Version 4.0-35 and Version 4.0-36
with respect to F90.
program pointers
integer*8 cp
integer ct
integer, pointer :: ip
integer, target :: it
pointer (cp, ct)
cp = %loc (it)
ip => it
end program pointers
Welcome to the Ladebug Debugger Version 4.0-35
------------------
object file name: c.out
Reading symbolic information ...done
(ladebug) stop at 9
[#1: stop at "c.f90":10 ]
(ladebug) p ct
0x0 = Error: cannot dereference F90 pointer CT
Error: no value for ct
With 4.0-36, an infinite loop is tripped:
Welcome to the Ladebug Debugger Version 4.0-36
------------------
object file name: c.out
Reading symbolic information ...done
(ladebug) stop at 9
[#1: stop at "c.f90":10 ]
(ladebug) p ct
0x0Error: cannot dereference F90 pointer 0x0Error: cannot dereference
F90 pointe
r 0x0Error: cannot dereference F90 pointer 0x0Error: cannot dereference
F90 poin
ter 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F90 po
inter 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F90
pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F9
0 pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference
F90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereferenc
e F90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
derefere
nce F90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error:
cannot derefe
rence F90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error:
cannot dere
ference F90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error:
cannot de
reference F90 pointer 0x0Error: cannot dereference F90 pointer
0x0Error: cannot
dereference F90 pointer 0x0Error: cannot dereference F90 pointer
0x0Error: canno
t dereference F90 pointer 0x0Error: cannot dereference F90 pointer
0x0Error: can
not dereference F90 pointer 0x0Error: cannot dereference F90 pointer
0x0Error: c
annot dereference F90 pointer 0x0Error: cannot dereference F90 pointer
0x0Error:
cannot dereference F90 pointer 0x0Error: cannot dereference F90
pointer 0x0Erro
r: cannot dereference F90 pointer 0x0Error: cannot dereference F90
pointer 0x0Er
ror: cannot dereference F90 pointer 0x0Error: cannot dereference F90
pointer 0x0
Error: cannot dereference F90 pointer 0x0Error: cannot dereference F90
pointer 0
x0Error: cannot dereference F90 pointer 0x0Error: cannot dereference
F90 pointer
0x0Error: cannot dereference F90 pointer 0x0Error: cannot dereference
F90 point
er 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F90 poi
nter 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F90 p
ointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F90
pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference F
90 pointer 0x0Error: cannot dereference F90 pointer 0x0Error: cannot
dereference...
Here is the symbol table:
FILE 20. unmergable, preexisting, Fortran:
Binary of auxes:
0. 0x000000fc 0xffffffff 0x00000000 0x00000020 0x0000000a
5. 0x00000000 0x00010020 0x00000078
Local Symbols:
from file c.f90 Printf aux if present
0. ( 0)( 0) c.f90 File Text symref 11
1. ( 1)(0x120001450) pointers_ Proc Text [ 4] endref 10,btNil
2. ( 2)( 0) pointer Typdef Info [ 6] Pointer to 32-bitlong
3. ( 2)(0x24) Block Text symref 9
4. ( 3)(0x140000200) IT Static Bss [ 3] 32-bitlong
5. ( 3)(0x1400001f0) IP Static Bss [ 6] Pointer to
32-bit long
6. ( 3)(0x1400001f8) CP Static Bss [ 7] long
7. ( 3)(0x1400001f8) CT Static Bss [ 6] Pointer to
32-bit long
8. ( 2)(0x48) End Text symref 3
9. ( 1)(0x54) pointers_ End Text symref 1
10. ( 0)( 0) c.f90 End Text symref 0
Bob
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