[Bug symtab/16842] New: crash on info addr DW_AT_const variable

["jan.kratochvil at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16842

            Bug ID: 16842
           Summary: crash on info addr DW_AT_const variable
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: jan.kratochvil at redhat dot com
            Target: x86_64-linux-gnu

g++ -Wall -g
gdb ./a.out -ex 'b func<3>()' -ex r -ex 'info addr i'

GNU gdb (GDB) 7.7.50.20140413-cvs
Program received signal SIGSEGV, Segmentation fault.
0x00000000007332be in address_info (exp=0x7fffffffdd50 "i", from_tty=1) at
./printcmd.c:1258
1258      gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile);
(gdb) p sym->symtab
$1 = (struct symtab *) 0x0

------------------------------------------------------------------------------
// from GCC testsuite: g++.dg/debug/dwarf2/template-params-2.C
template <int i>
int
func()
{
  int j = i;
  return j;
}
const int foo = 1;
const int bar = 2;
int main()
{
  return func<foo+bar>();
}

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