[Bug fortran/44155] New: gfortran segmentation fault using iso_c_binding
whalen at cray dot com
gcc-bugzilla@gcc.gnu.org
Sun May 16 05:13:00 GMT 2010
gfortran encounters a segfault when trying to compile a standalone file. The
source file itself appears at the end of this comment. But first, the gfortran
behavior
users/whalen> gfortran -v -save-temps test.f90
Driving: gfortran -v -save-temps test.f90 -lgfortran -lm -shared-libgcc
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=gcc/dev/20100515/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../../src/gcc-dev/configure --prefix=gcc/dev/20100515/
--with-gmp=gmp/4.3.2/ --with-mpfr=mpfr/2.4.2/ --with-mpc=mpc/0.8.1/
--with-ppl=ppl/0.10.2/ --with-cloog=cloog/0.15.9/
--enable-languages=fortran,c,c++ --enable-lto --with-libelf=libelf/0.8.13
Thread model: posix
gcc version 4.6.0 20100516 (experimental) [trunk revision 159450] (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
gcc/dev/20100515/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/f951
test.f90 -quiet -dumpbase test.f90 -mtune=generic -march=x86-64 -auxbase test
-version -fintrinsic-modules-path
gcc/dev/20100515/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.6.0/finclude -o
test.s
GNU Fortran (GCC) version 4.6.0 20100516 (experimental) [trunk revision 159450]
(x86_64-unknown-linux-gnu)
compiled by GNU C version 4.6.0 20100516 (experimental) [trunk revision
159450], GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU Fortran (GCC) version 4.6.0 20100516 (experimental) [trunk revision 159450]
(x86_64-unknown-linux-gnu)
compiled by GNU C version 4.6.0 20100516 (experimental) [trunk revision
159450], GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
test.f90: In function ÂtetgenfÂ:
test.f90:125:0: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
users/whalen> cat test.f90
module mod_tetgen
use iso_c_binding
implicit none
type tetgenpolygon
logical :: initialized = .false.
integer :: numberofvertices = 0
integer, pointer :: vertexlist(:)
end type tetgenpolygon
type tetgenfacet
logical :: initialized = .false.
integer :: numberofpolygons = 0
type(tetgenpolygon), pointer :: polygonlist(:)
integer :: numberofholes = 0
double precision, pointer :: holelist(:,:)
end type tetgenfacet
type tetgenio
logical :: initialized = .false.
integer :: handle = -1
integer :: numberofpoints = 0
double precision, pointer :: pointlist(:,:)
integer :: numberoffacets = 0
type(tetgenfacet), pointer :: facetlist(:)
integer, pointer :: facetmarkerlist(:)
end type tetgenio
interface
subroutine tetcall &
(inhandle, outhandle, numberofpoints, pointlist, &
numberoffacets, numberofpolygons, numberofholes, &
facetmarkerlist, vertexliststarts, vertexlistvals, &
numberofoutpoints, outpointlist, numberofoutfacets) &
bind(c)
use iso_c_binding
implicit none
integer(c_int), value :: inhandle
integer(c_int), value :: outhandle
integer(c_int), value :: numberofpoints
type(c_ptr), value :: pointlist
integer(c_int), value :: numberoffacets
type(c_ptr), value :: numberofpolygons
type(c_ptr), value :: numberofholes
type(c_ptr), value :: facetmarkerlist
type(c_ptr), value :: vertexliststarts, vertexlistvals
integer(c_int) :: numberofoutpoints
type(c_ptr) :: outpointlist
integer(c_int) :: numberofoutfacets
end subroutine tetcall
end interface
contains
subroutine tetgenf( in, out )
implicit none
!-- Transferred variables
type(tetgenio), target, intent(in) :: in
type(tetgenio), target, intent(inout) :: out
!-- Local variables
integer ppos, vpos
integer f, p, v
type(tetgenfacet), pointer :: pfacet
type(tetgenpolygon), pointer :: ppoly
integer, allocatable, target :: npolylist(:), nholelist(:)
integer, allocatable, target :: vertexliststarts(:), vertexlistvals(:)
integer inhandle, outhandle
type(c_ptr) c_outpointlist
allocate(npolylist(in%numberoffacets))
allocate(nholelist(in%numberoffacets))
ppos = 1
vpos = 1
do f = 1, in%numberoffacets
pfacet => in%facetlist(f)
do p = 1, pfacet%numberofpolygons
ppoly => pfacet%polygonlist(p)
do v = 1, ppoly%numberofvertices
vpos = vpos + 1
end do
ppos = ppos + 1
end do
end do
allocate(vertexliststarts(ppos), vertexlistvals(vpos-1))
ppos = 1
vpos = 1
do f = 1, in%numberoffacets
pfacet => in%facetlist(f)
npolylist(f) = pfacet%numberofpolygons
nholelist(f) = pfacet%numberofholes
do p = 1, pfacet%numberofpolygons
vertexliststarts(ppos) = vpos
ppoly => pfacet%polygonlist(p)
do v = 1, ppoly%numberofvertices
vertexlistvals(vpos) = ppoly%vertexlist(v)
vpos = vpos + 1
end do
ppos = ppos + 1
end do
end do
vertexliststarts(ppos) = vpos
call tetnew(inhandle)
call tetnew(outhandle)
call tetcall(inhandle, outhandle, &
in%numberofpoints, &
c_loc(in%pointlist), &
in%numberoffacets, &
c_loc(npolylist), &
c_loc(nholelist), &
c_loc(in%facetmarkerlist), &
c_loc(vertexliststarts), c_loc(vertexlistvals), &
out%numberofpoints, c_outpointlist, &
out%numberoffacets)
call tetfree(inhandle)
out%initialized = .true.
out%handle = outhandle
call c_f_pointer(cptr=c_outpointlist, fptr=out%pointlist, &
shape=(/ 3, out%numberofpoints /))
deallocate(vertexliststarts, vertexlistvals)
deallocate(npolylist, nholelist)
end subroutine tetgenf
end module mod_tetgen
--
Summary: gfortran segmentation fault using iso_c_binding
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: whalen at cray dot com
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44155
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