internal compiler error: in named_section_flags, at varasm.c:412

[Christian Daudt <csd_ob at daudt dot org>]

Hi,
 In trying to set up an environment for x86_64, I've run into the the error 
above in compiling the glibc (set for x86_64-unknown-linux crosscompile from 
i686-pc-linux-gnu host as suggested in the x86-64.org website).
 I have latest cvs sources from the gcc-3_3-branch. I've tracked the error 
down to being caused by the fact that the define HAVE_LD_RO_RW_SECTION_MIXING 
is being set to 1 by the configure scripts, and because of that  the 
default_eh_frame_section function (in dwarf2out.c) is calling 
named_section_flags with flags that varasm.c doesn't like (because they 
differ from previous calls). 
 I found that manually removing that HAVE_LD_RO_RW_SECTION_MIXING define 
causes everything to compile ok and intuitively it seems to me from the 
comments that that define shouldn't be set for the x86_64 tools, but I don't 
know enough about gcc to know that for sure. 
 Anyone know what the proper fix for this would be?

 thanks,
   csd

PS: I've attached the soinit.c and soinit.E pre-proc files that caused the 
error.
/* Initializer module for building the ELF shared C library.  This file and
   sofini.c do the work normally done by crtbeginS.o and crtendS.o, to wrap
   the `.ctors' and `.dtors' sections so the lists are terminated, and
   calling those lists of functions.  */

#include <libc-internal.h>
#include <stdlib.h>

#ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
# include <gccframe.h>
#endif

static void (*const __CTOR_LIST__[1]) (void)
     __attribute__ ((section (".ctors")))
     = { (void (*) (void)) -1 };
static void (*const __DTOR_LIST__[1]) (void)
     __attribute__ ((section (".dtors")))
     = { (void (*) (void)) -1 };

static inline void
run_hooks (void (*const list[]) (void))
{
  while (*++list)
    (**list) ();
}

#ifdef HAVE_DWARF2_UNWIND_INFO
static char __EH_FRAME_BEGIN__[]
     __attribute__ ((section (".eh_frame")))
     = { };
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
extern void __register_frame_info (const void *, struct object *);
extern void __register_frame_info_bases (const void *, struct object *,
					 void *, void *);
extern void __deregister_frame_info (const void *);
extern void __deregister_frame_info_bases (const void *);
# else
extern void __register_frame (const void *);
extern void __deregister_frame (const void *);
# endif
#endif

/* This function will be called from _init in init-first.c.  */
void
__libc_global_ctors (void)
{
  /* Call constructor functions.  */
  run_hooks (__CTOR_LIST__);

#ifdef HAVE_DWARF2_UNWIND_INFO
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
  {
    static struct object ob;
#  if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA
    void *tbase, *dbase;

#   ifdef CRT_GET_RFIB_TEXT
    CRT_GET_RFIB_TEXT (tbase);
#   else
    tbase = NULL;
#   endif
#   ifdef CRT_GET_RFIB_DATA
    CRT_GET_RFIB_DATA (dbase);
#   else
    dbase = NULL;
#   endif
    __register_frame_info_bases (__EH_FRAME_BEGIN__, &ob, tbase, dbase);
#  else
    __register_frame_info (__EH_FRAME_BEGIN__, &ob);
#  endif
  }
# else
  __register_frame (__EH_FRAME_BEGIN__);
# endif
#endif
}


/* This function becomes the DT_FINI termination function
   for the C library.  */
void _fini (void) __attribute__ ((section (".fini"))); /* Just for kicks.  */
void
_fini (void)
{
  /* Call destructor functions.  */
  run_hooks (__DTOR_LIST__);
#ifdef HAVE_DWARF2_UNWIND_INFO
# ifdef HAVE_DWARF2_UNWIND_INFO_STATIC
#  if defined CRT_GET_RFIB_TEXT || defined CRT_GET_RFIB_DATA
  __deregister_frame_info_bases (__EH_FRAME_BEGIN__);
#  else
  __deregister_frame_info (__EH_FRAME_BEGIN__);
#  endif
# else
  __deregister_frame (__EH_FRAME_BEGIN__);
# endif
#endif
}

Attachment: soinit.E
Description: Text document