[Bug driver/26274] New: gcc --target-help segfaults

[uros at kss-loka dot si]

gcc segfaults in print_filtered_help when invoked with --target-help option:

Starting program: /export/home/uros/gcc-build/gcc/cc1 --target-help

Target specific options:

Program received signal SIGSEGV, Segmentation fault.
0x0838547b in print_filtered_help (flag=4194304)
    at ../../gcc-svn/trunk/gcc/opts.c:1335
1335          memset (printed, 0, cl_options_count);
(gdb) bt
#0  0x0838547b in print_filtered_help (flag=4194304)
    at ../../gcc-svn/trunk/gcc/opts.c:1335
#1  0x0838635e in decode_options (argc=2, argv=0xbffffa24)
    at ../../gcc-svn/trunk/gcc/opts.c:746
#2  0x083eb77b in toplev_main (argc=2, argv=0xbffffa24)
    at ../../gcc-svn/trunk/gcc/toplev.c:1970


print_filtered_help (unsigned int flag)
{
  unsigned int i, len, filter, indent = 0;
  bool duplicates = false;
  const char *help, *opt, *tab;
  static char *printed;

  if (flag == CL_COMMON || flag == CL_TARGET)
    {
      filter = flag;
      if (!printed)
        printed = xmalloc (cl_options_count);
>>    memset (printed, 0, cl_options_count);   <<
    }
  else


-- 
           Summary: gcc --target-help segfaults
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: uros at kss-loka dot si
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26274