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[Bug fortran/53478] gfortran segfaults when module name clashes with C binding name of procedure
- From: "kargl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 24 May 2012 17:23:50 +0000
- Subject: [Bug fortran/53478] gfortran segfaults when module name clashes with C binding name of procedure
- Auto-submitted: auto-generated
- References: <bug-53478-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53478
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-05-24
CC| |kargl at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from kargl at gcc dot gnu.org 2012-05-24 17:23:50 UTC ---
Confirmed.
(gdb) bt
#0 0x0000000202c0103c in strcmp () from /lib/libc.so.7
#1 0x000000000050aa91 in gfc_verify_binding_labels (sym=0x203cd1280)
at ../../gcc4x/gcc/fortran/resolve.c:9847
#2 0x000000000052cf40 in do_traverse_symtree (st=0x203c183a0, st_func=0,
sym_func=0x50a840 <gfc_verify_binding_labels>)
at ../../gcc4x/gcc/fortran/symbol.c:3386
#3 0x000000000051c030 in resolve_types (ns=0x203c63600)
at ../../gcc4x/gcc/fortran/resolve.c:13984
#4 0x000000000051bef8 in resolve_types (ns=0x203c62c00)
at ../../gcc4x/gcc/fortran/resolve.c:13965
#5 0x000000000050feec in gfc_resolve (ns=0xfffffffffffffff8)
at ../../gcc4x/gcc/fortran/resolve.c:14054
#6 0x0000000000502a48 in gfc_parse_file ()
at ../../gcc4x/gcc/fortran/parse.c:4594
#7 0x000000000053c90e in gfc_be_parse_file ()
at ../../gcc4x/gcc/fortran/f95-lang.c:191
#8 0x00000000008f57f0 in compile_file () at ../../gcc4x/gcc/toplev.c:552
#9 do_compile () at ../../gcc4x/gcc/toplev.c:1874
#10 0x00000000008f5e4c in toplev_main (argc=2, argv=0x7fffffffd4e0)
at ../../gcc4x/gcc/toplev.c:1950
#11 0x0000000000499a6d in _start ()
(gdb) up 1
#1 0x000000000050aa91 in gfc_verify_binding_labels (sym=0x203cd1280)
at ../../gcc4x/gcc/fortran/resolve.c:9847
9847 if (sym->attr.if_source == IFSRC_DECL
(gdb) list
9842
9843 bind_c_sym = gfc_find_gsymbol (gfc_gsym_root,
sym->binding_label);
9844 if (bind_c_sym != NULL
9845 && strcmp (bind_c_sym->name, sym->binding_label) == 0)
9846 {
9847 if (sym->attr.if_source == IFSRC_DECL
9848 && (bind_c_sym->type != GSYM_SUBROUTINE
9849 && bind_c_sym->type != GSYM_FUNCTION)
9850 && ((sym->attr.contained == 1
9851 && strcmp (bind_c_sym->sym_name, sym->name) != 0)
(gdb) print *bind_c_sym
$1 = {priority = 41101, left = 0x0, right = 0x0, name = 0x20400bf80 "exports",
sym_name = 0x0, mod_name = 0x0, binding_label = 0x0, type = GSYM_MODULE,
defined = 1, used = 0, where = {nextc = 0x203ca61f8, lb = 0x203ca61a0},
ns = 0x203c62c00}
Note, sym->binding_label is 0x0