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A question about program entry point


Dears,

When printing a c++ class method using function "cp_print_class_method", 
and the program entry point is 
set over 0x80000000(for example 0xa0001000), gdb will treat the "addr" as 
virtual address and finally
goes into the "else" branch at the following, so gdb will not print out 
the correct class method.
 
 common: 
  if (i < len)
    {
      char *demangled_name;

      fprintf_filtered (stream, "&");
      fputs_filtered (kind, stream);
      demangled_name = cplus_demangle (TYPE_FN_FIELD_PHYSNAME (f, j), 
                       DMGL_ANSI | DMGL_PARAMS);
      if (demangled_name == NULL)
    fprintf_filtered (stream, "<badly mangled name %s>",
              TYPE_FN_FIELD_PHYSNAME (f, j));
      else 
    {
      fputs_filtered (demangled_name, stream);
      xfree (demangled_name);
    }
    }
  else
    {
      fprintf_filtered (stream, "(");
      type_print (type, "", stream, -1);
      fprintf_filtered (stream, ") %d", (int) addr >> 3);
    }

I see some macros defined in "cp-support.h". Does that mean gdb support 
printing class method
only if the program entry point is less than 0x80000000? Thanks!

/* Pointer to member function.  Depends on compiler implementation.  */

#define METHOD_PTR_IS_VIRTUAL(ADDR)  ((ADDR) & 0x80000000)
#define METHOD_PTR_FROM_VOFFSET(OFFSET) (0x80000000 + (OFFSET))
#define METHOD_PTR_TO_VOFFSET(ADDR) (~0x80000000 & (ADDR)) 


Best regards,
Qinwei
Mail  qinwei@sunnorth.com.cn
Phone +86-010-62981668-2708
Fax   +86-010-62985972


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