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[Bug fortran/35971] New: ICE on valid code
- From: "fxcoudert at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 Apr 2008 08:20:46 -0000
- Subject: [Bug fortran/35971] New: ICE on valid code
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
>From comp.lang.fortran: ICE on the following code
module funcs
implicit none
! Interface block for function program fptr will invoke
! to get the C_FUNPTR
interface
function get_proc(mess) bind(C,name='BlAh')
use ISO_C_BINDING
implicit none
character(kind=C_CHAR) mess(*)
type(C_FUNPTR) get_proc
end function get_proc
end interface
end module funcs
module other_fun
use ISO_C_BINDING
implicit none
private
! Message to be returned by procedure pointed to
! by the C_FUNPTR
character, allocatable, save :: my_message(:)
! Interface block for the procedure pointed to
! by the C_FUNPTR
public abstract_fun
abstract interface
function abstract_fun(x)
use ISO_C_BINDING
import my_message
implicit none
integer(C_INT) x(:)
character(size(my_message),C_CHAR) abstract_fun(size(x))
end function abstract_fun
end interface
contains
! Procedure to store the message and get the C_FUNPTR
function gp(message) bind(C,name='BlAh')
character(kind=C_CHAR) message(*)
type(C_FUNPTR) gp
integer(C_INT64_T) i
i = 1
do while(message(i) /= C_NULL_CHAR)
i = i+1
end do
my_message = message(int(1,kind(i)):i-1)
gp = get_funloc(make_mess,aux)
end function gp
! Intermediate procedure to pass the function and get
! back the C_FUNPTR
function get_funloc(x,y)
procedure(abstract_fun) x
type(C_FUNPTR) y
external y
type(C_FUNPTR) get_funloc
get_funloc = y(x)
end function get_funloc
! Procedure to convert the function to C_FUNPTR
function aux(x)
interface
subroutine x() bind(C)
end subroutine x
end interface
type(C_FUNPTR) aux
aux = C_FUNLOC(x)
end function aux
! Procedure pointed to by the C_FUNPTR
function make_mess(x)
integer(C_INT) x(:)
character(size(my_message),C_CHAR) make_mess(size(x))
make_mess = transfer(my_message,make_mess(1))
end function make_mess
end module other_fun
program fptr
use funcs
use other_fun
implicit none
interface
procedure(abstract_fun) fun
end interface
pointer(p,fun)
type(C_FUNPTR) fp
fp = get_proc('Hello, world'//achar(0))
p = transfer(fp,p)
write(*,'(a)') fun([1,2,3])
end program fptr
Program received signal SIGSEGV, Segmentation fault.
gfc_is_compile_time_shape (as=0x0) at ../../../trunk2/gcc/fortran/array.c:2095
2095 if (as->type != AS_EXPLICIT)
(gdb) bt
#0 gfc_is_compile_time_shape (as=0x0)
at ../../../trunk2/gcc/fortran/array.c:2095
#1 0x00000000004680ec in resolve_symbol (sym=0x101bc00)
at ../../../trunk2/gcc/fortran/resolve.c:6810
#2 0x0000000000473637 in traverse_ns (st=0x101bda0,
func=0x466490 <resolve_symbol>)
at ../../../trunk2/gcc/fortran/symbol.c:2978
#3 0x0000000000462a40 in resolve_types (ns=0x101b4b0)
at ../../../trunk2/gcc/fortran/resolve.c:9059
#4 0x000000000046646d in gfc_resolve (ns=0x0)
at ../../../trunk2/gcc/fortran/resolve.c:9138
#5 0x00000000004667e9 in resolve_symbol (sym=0x1017150)
at ../../../trunk2/gcc/fortran/resolve.c:8064
--
Summary: ICE on valid code
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: fxcoudert at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35971