View | Details | Raw Unified
Collapse All | Expand All

(-) src.orig/gdb/ChangeLog (+7 lines)
 Lines 1-3    Link Here  
2006-08-22  Will Drewry <wad@google.com>
 
	    Tavis Ormandy <taviso@google.com>
 

            

            

              
              
	* dwarf2read.c (decode_locdesc): Enforce location description stack

            

            

              
              
	boundaries.

            

            

              
              
	* dwarfread.c (locval): Likewise.

            

            

              
              

            

        
2006-08-19  Daniel Jacobowitz  <dan@codesourcery.com>
2006-08-19  Daniel Jacobowitz  <dan@codesourcery.com>

        

        
	* Makefile.in (amd64_linux_tdep_h): New.
	* Makefile.in (amd64_linux_tdep_h): New.



(-) src.orig/gdb/dwarf2read.c
      (-3 / +12 lines)




  

    

    

       Lines 8754-8761
      dwarf2_fundamental_type (struct objfile  
    
  Link Here 
    

  

        
   callers will only want a very basic result and this can become a
   callers will only want a very basic result and this can become a

        
   complaint.
   complaint.

        

            

              
   Note that stack[0] is unused except as a default error return.

              
   Note that stack[0] is unused except as a default error return. */

            

            

              
   Note that stack overflow is not yet handled.  */

              

            

        

        
static CORE_ADDR
static CORE_ADDR

        
decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)

  

    

    

       Lines 8772-8778
      decode_locdesc (struct dwarf_block *blk, 
    
  Link Here 
    

  

        

        
  i = 0;
  i = 0;

        
  stacki = 0;
  stacki = 0;

            

              
  stack[stacki] = 0;

              
  stack[++stacki] = 0;

            

        

        
  while (i < size)
  while (i < size)

        
    {
    {

  

    

    

       Lines 8951-8956
      decode_locdesc (struct dwarf_block *blk, 
    
  Link Here 
    

  

        
		     dwarf_stack_op_name (op));
		     dwarf_stack_op_name (op));

        
	  return (stack[stacki]);
	  return (stack[stacki]);

        
	}
	}

            

              
              
      /* Enforce maximum stack depth of size-1 to avoid ++stacki writing

            

            

              
              
         outside of the allocated space. Also enforce minimum > 0.

            

            

              
              
         -- wad@google.com 14 Aug 2006 */

            

            

              
              
      if (stacki >= sizeof (stack) / sizeof (*stack) - 1)

            

            

              
              
	internal_error (__FILE__, __LINE__,

            

            

              
              
	                _("location description stack too deep: %d"),

            

            

              
              
	                stacki);

            

            

              
              
      if (stacki <= 0)

            

            

              
              
	internal_error (__FILE__, __LINE__,

            

            

              
              
	                _("location description stack too shallow"));

            

        
    }
    }

        
  return (stack[stacki]);
  return (stack[stacki]);

        
}
}



(-) src.orig/gdb/dwarfread.c
      (-4 / +12 lines)




  

    

    

       Lines 2138-2146
      decode_line_numbers (char *linetable) 
    
  Link Here 
    

  

        

        
   NOTES
   NOTES

        

            

              
   Note that stack[0] is unused except as a default error return.

              
   Note that stack[0] is unused except as a default error return. */

            

            

              
   Note that stack overflow is not yet handled.

              

            

            

              
 */

              

            

        

        
static int
static int

        
locval (struct dieinfo *dip)
locval (struct dieinfo *dip)

  

    

    

       Lines 2160-2166
      locval (struct dieinfo *dip) 
    
  Link Here 
    

  

        
  loc += nbytes;
  loc += nbytes;

        
  end = loc + locsize;
  end = loc + locsize;

        
  stacki = 0;
  stacki = 0;

            

              
  stack[stacki] = 0;

              
  stack[++stacki] = 0;

            

        
  dip->isreg = 0;
  dip->isreg = 0;

        
  dip->offreg = 0;
  dip->offreg = 0;

        
  dip->optimized_out = 1;
  dip->optimized_out = 1;

  

    

    

       Lines 2224-2229
      locval (struct dieinfo *dip) 
    
  Link Here 
    

  

        
	  stacki--;
	  stacki--;

        
	  break;
	  break;

        
	}
	}

            

              
              
      /* Enforce maximum stack depth of size-1 to avoid ++stacki writing

            

            

              
              
         outside of the allocated space. Also enforce minimum > 0.

            

            

              
              
         -- wad@google.com 14 Aug 2006 */

            

            

              
              
      if (stacki >= sizeof (stack) / sizeof (*stack) - 1)

            

            

              
              
	internal_error (__FILE__, __LINE__,

            

            

              
              
	                _("location description stack too deep: %d"),

            

            

              
              
	                stacki);

            

            

              
              
      if (stacki <= 0)

            

            

              
              
	internal_error (__FILE__, __LINE__,

            

            

              
              
	                _("location description stack too shallow"));

            

        
    }
    }

        
  return (stack[stacki]);
  return (stack[stacki]);

        
}
}