[deliverable/binutils-gdb.git] / bfd / evax-egsd.c

/* evax-egsd.c -- BFD back-end for ALPHA EVAX (openVMS/Alpha) files.
   Copyright 1996, 1997 Free Software Foundation Inc.

   go and read the openVMS linker manual (esp. appendix B)
   if you don't know what's going on here :-)

   Written by Klaus K"ampf (kkaempf@progis.de)
   of proGIS Softwareentwicklung, Aachen, Germany

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */


#include <stdio.h>
#include <ctype.h>

#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"

#include "evax.h"

/*-----------------------------------------------------------------------------*/

/* sections every evax object file has  */

#define EVAX_ABS_NAME		"$ABS$"
#define EVAX_CODE_NAME		"$CODE$"
#define EVAX_LINK_NAME		"$LINK$"
#define EVAX_DATA_NAME		"$DATA$"
#define EVAX_BSS_NAME		"$BSS$"
#define EVAX_READONLY_NAME	"$READONLY$"
#define EVAX_LITERAL_NAME	"$LITERAL$"
#define EVAX_COMMON_NAME	"$COMMON$"
#define EVAX_LOCAL_NAME		"$LOCAL$"

struct sec_flags_struct {
  char *name;			/* name of section */
  int eflags_always;
  flagword flags_always;	/* flags we set always */
  int eflags_hassize;
  flagword flags_hassize;	/* flags we set if the section has a size > 0 */
};

/* just a dummy flag array since i don't understand it yet  */

static struct sec_flags_struct evax_section_flags[] = {
  { EVAX_ABS_NAME,
	(EGPS_S_V_SHR),
	(SEC_DATA),
	(EGPS_S_V_SHR),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_CODE_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
	(SEC_CODE),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE),
	(SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_LINK_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_REL|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_DATA_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_DATA),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_BSS_NAME,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
	(SEC_NO_FLAGS),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD),
	(SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
  { EVAX_READONLY_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { EVAX_LITERAL_NAME,
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_DATA|SEC_READONLY),
	(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
  { NULL,
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_DATA),
	(EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT),
	(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
};

/* Retrieve bfd section flags by name and size  */

static flagword
evax_secflag_by_name(name, size)
     char *name;
     int size;
{
  int i = 0;

  while (evax_section_flags[i].name != NULL)
    {
      if (strcmp (name, evax_section_flags[i].name) == 0)
	{
	  if (size > 0)
	    return evax_section_flags[i].flags_hassize;
	  else
	    return evax_section_flags[i].flags_always;
	}
      i++;
    }
  if (size > 0)
    return evax_section_flags[i].flags_hassize;
  return evax_section_flags[i].flags_always;
}


/* Retrieve evax section flags by name and size  */

static flagword
evax_esecflag_by_name(name, size)
     char *name;
     int size;
{
  int i = 0;

  while (evax_section_flags[i].name != NULL)
    {
      if (strcmp (name, evax_section_flags[i].name) == 0)
	{
	  if (size > 0)
	    return evax_section_flags[i].eflags_hassize;
	  else
	    return evax_section_flags[i].eflags_always;
	}
      i++;
    }
  if (size > 0)
    return evax_section_flags[i].eflags_hassize;
  return evax_section_flags[i].eflags_always;
}

/*-----------------------------------------------------------------------------*/
#if EVAX_DEBUG
/* debug */

struct flagdescstruct { char *name; flagword value; };

/* Convert flag to printable string  */

static char *
flag2str(flagdesc, flags)
     struct flagdescstruct *flagdesc;
     flagword flags;
{

  static char res[64];
  int next = 0;

  res[0] = 0;
  while (flagdesc->name != NULL)
    {
      if ((flags & flagdesc->value) != 0)
	{
	  if (next)
	    strcat(res, ",");
	  else
	    next = 1;
	  strcat (res, flagdesc->name);
	}
      flagdesc++;
    }
  return res;
}
#endif

/*-----------------------------------------------------------------------------*/
/* input routines */

/* Process EGSD record
   return 0 on success, -1 on error  */

int
_bfd_evax_slurp_egsd (abfd)
     bfd *abfd;
{
#if EVAX_DEBUG
  static struct flagdescstruct gpsflagdesc[] =
  {
    { "PIC", 0x0001 },
    { "LIB", 0x0002 },
    { "OVR", 0x0004 },
    { "REL", 0x0008 },
    { "GBL", 0x0010 },
    { "SHR", 0x0020 },
    { "EXE", 0x0040 },
    { "RD",  0x0080 },
    { "WRT", 0x0100 },
    { "VEC", 0x0200 },
    { "NOMOD", 0x0400 },
    { "COM", 0x0800 },
    { NULL, 0 }
  };

  static struct flagdescstruct gsyflagdesc[] =
  {
    { "WEAK", 0x0001 },
    { "DEF",  0x0002 },
    { "UNI",  0x0004 },
    { "REL",  0x0008 },
    { "COMM", 0x0010 },
    { "VECEP", 0x0020 },
    { "NORM", 0x0040 },
    { NULL, 0 }
  };
#endif

  int gsd_type, gsd_size;
  asection *section;
  unsigned char *evax_rec;
  flagword new_flags, old_flags;
  char *name;
  asymbol *symbol;
  evax_symbol_entry *entry;
  unsigned long base_addr;
  unsigned long align_addr;

#if EVAX_DEBUG
  evax_debug (2, "EGSD\n");
#endif

  PRIV(evax_rec) += 8;	/* skip type, size, l_temp */
  PRIV(rec_size) -= 8;

  /* calculate base address for each section  */
  base_addr = 0L;

  abfd->symcount = 0;

  while (PRIV(rec_size) > 0)
    {
      evax_rec = PRIV(evax_rec);
      _bfd_evax_get_header_values (abfd, evax_rec, &gsd_type, &gsd_size);
      switch (gsd_type)
	{
	case EGSD_S_C_PSC:
	  {
	    /* program section definition  */

	    name = _bfd_evax_save_counted_string ((char *)evax_rec+12);
	    section = bfd_make_section (abfd, name);
	    if (!section)
	      return -1;
	    old_flags = bfd_getl16 (evax_rec + 6);
	    section->_raw_size = bfd_getl32 (evax_rec + 8);	/* allocation */
	    new_flags = evax_secflag_by_name (name, (int) section->_raw_size);
	    if (old_flags & EGPS_S_V_REL)
	      new_flags |= SEC_RELOC;
	    if (!bfd_set_section_flags (abfd, section, new_flags))
	      return -1;
	    section->alignment_power = evax_rec[4];
	    align_addr = (1 << section->alignment_power);
	    if ((base_addr % align_addr) != 0)
	      base_addr += (align_addr - (base_addr % align_addr));
	    section->vma = (bfd_vma)base_addr;
	    base_addr += section->_raw_size;
	    section->contents = ((unsigned char *)
				 bfd_malloc (section->_raw_size));
	    if (section->contents == NULL)
	      return -1;
	    memset (section->contents, 0, (size_t) section->_raw_size);
	    section->_cooked_size = section->_raw_size;
#if EVAX_DEBUG
	    evax_debug(3, "egsd psc %d (%s, flags %04x=%s) ",
		       section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
	    evax_debug(3, "%d bytes at 0x%08lx (mem %p)\n",
		       section->_raw_size, section->vma, section->contents);
#endif
	  }
	  break;

	case EGSD_S_C_SYM:
	  {
	    /* symbol specification (definition or reference)  */

            symbol = _bfd_evax_make_empty_symbol (abfd);
            if (symbol == 0)
              return -1;

	    old_flags = bfd_getl16 (evax_rec + 6);
	    new_flags = BSF_NO_FLAGS;

	    if (old_flags & EGSY_S_V_WEAK)
	      new_flags |= BSF_WEAK;

	    if (evax_rec[6] & EGSY_S_V_DEF)	/* symbol definition */
	      {
		symbol->name =
		  _bfd_evax_save_counted_string ((char *)evax_rec+32);
		if (old_flags & EGSY_S_V_NORM)
		  {         /* proc def */
		    new_flags |= BSF_FUNCTION;
		  }
		symbol->value = bfd_getl64 (evax_rec+8);
		symbol->section = (asection *)((unsigned long) bfd_getl32 (evax_rec+28));
#if EVAX_DEBUG
		evax_debug(3, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
			   symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
	      }
	    else	/* symbol reference */
	      {
                symbol->name =
		  _bfd_evax_save_counted_string ((char *)evax_rec+8);
#if EVAX_DEBUG
		evax_debug(3, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
			   symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
                symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
	      }

	    symbol->flags = new_flags;

	    /* save symbol in evax_symbol_table  */

            entry = (evax_symbol_entry *) bfd_hash_lookup (PRIV(evax_symbol_table), symbol->name, true, false);
	    if (entry == (evax_symbol_entry *)NULL)
	      {
		bfd_set_error (bfd_error_no_memory);
		return -1;
	      }
	    if (entry->symbol != (asymbol *)NULL)
	      {					/* FIXME ?, DEC C generates this */
#if EVAX_DEBUG
		evax_debug(3, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
#endif
	      }
	    else
	      {
		entry->symbol = symbol;
		PRIV(egsd_sym_count)++;
		abfd->symcount++;
	      }
	  }
	  break;

	case EGSD_S_C_IDC:
	  break;

	default:
	  (*_bfd_error_handler) ("unknown egsd subtype %d", gsd_type);
	  bfd_set_error (bfd_error_bad_value);
	  return -1;

	} /* switch */

      PRIV(rec_size) -= gsd_size;
      PRIV(evax_rec) += gsd_size;

    } /* while (recsize > 0) */

  if (abfd->symcount > 0)
    abfd->flags |= HAS_SYMS;

  return 0;
}

/*-----------------------------------------------------------------------------*/
/* output routines */

/* Write section and symbol directory of bfd abfd  */

int
_bfd_evax_write_egsd (abfd)
     bfd *abfd;
{
  asection *section;
  asymbol *symbol;
  int symnum;
  int last_index = -1;
  char dummy_name[10];
  char *sname;
  flagword new_flags, old_flags;
  char uname[200];
  char *nptr, *uptr;

#if EVAX_DEBUG
  evax_debug (2, "evax_write_egsd(%p)\n", abfd);
#endif

  /* output sections  */

  section = abfd->sections;
#if EVAX_DEBUG
  evax_debug (3, "%d sections found\n", abfd->section_count);
#endif

  /* egsd is quadword aligned  */

  _bfd_evax_output_alignment (abfd, 8);

  _bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
  _bfd_evax_output_long (abfd, 0);
  _bfd_evax_output_push (abfd);		/* prepare output for subrecords */

  while (section != 0)
    {
#if EVAX_DEBUG
  evax_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
#endif

	/* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
      if (_bfd_evax_output_check (abfd, 64) < 0)
	{
	  _bfd_evax_output_pop (abfd);
	  _bfd_evax_output_end (abfd);
	  _bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
	  _bfd_evax_output_long (abfd, 0);
	  _bfd_evax_output_push (abfd);		/* prepare output for subrecords */
	}

	/* Create dummy sections to keep consecutive indices */

      while (section->index - last_index > 1)
	{
#if EVAX_DEBUG
	  evax_debug (3, "index %d, last %d\n", section->index, last_index);
#endif
	  _bfd_evax_output_begin (abfd, EGSD_S_C_PSC, -1);
	  _bfd_evax_output_short (abfd, 0);
	  _bfd_evax_output_short (abfd, 0);
	  _bfd_evax_output_long (abfd, 0);
	  sprintf (dummy_name, ".DUMMY%02d", last_index);
	  _bfd_evax_output_counted (abfd, dummy_name);
	  _bfd_evax_output_flush (abfd);
	  last_index++;
	}

      /* Don't know if this is neccesary for the linker but for now it keeps
	 evax_slurp_egsd happy  */

      sname = (char *)section->name;
      if (*sname == '.')
	{
	  sname++;
	  if ((*sname == 't') && (strcmp (sname, "text") == 0))
	    sname = EVAX_CODE_NAME;
	  else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
	    sname = EVAX_DATA_NAME;
	  else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
	    sname = EVAX_BSS_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
	    sname = EVAX_LINK_NAME;
	  else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
	    sname = EVAX_READONLY_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
	    sname = EVAX_LITERAL_NAME;
	  else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
	    sname = EVAX_COMMON_NAME;
	  else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
	    sname = EVAX_LOCAL_NAME;
	}

      _bfd_evax_output_begin (abfd, EGSD_S_C_PSC, -1);
      _bfd_evax_output_short (abfd, section->alignment_power & 0xff);
      _bfd_evax_output_short (abfd,
			      evax_esecflag_by_name (sname,
						     section->_raw_size));
      _bfd_evax_output_long (abfd, section->_raw_size);
      _bfd_evax_output_counted (abfd, sname);
      _bfd_evax_output_flush (abfd);

      last_index = section->index;
      section = section->next;
    }

  /* output symbols  */

#if EVAX_DEBUG
  evax_debug (3, "%d symbols found\n", abfd->symcount);
#endif

  bfd_set_start_address (abfd, (bfd_vma)-1);

  for (symnum = 0; symnum < abfd->symcount; symnum++)
    {

      symbol = abfd->outsymbols[symnum];
      if (*(symbol->name) == '_')
	{
	  if (strcmp (symbol->name, "__main") == 0)
	    bfd_set_start_address (abfd, (bfd_vma)symbol->value);
	}
      old_flags = symbol->flags;

      if ((*(symbol->section->name+1) == 'c')
	 && (strcmp (symbol->section->name+1, "comm") == 0)
	 && (strcmp (symbol->name, ".comm") != 0))
	old_flags |= BSF_GLOBAL;

      if (old_flags & BSF_FILE)
	continue;

      if (((old_flags & BSF_GLOBAL) == 0)		/* not xdef */
	  && (!bfd_is_und_section (symbol->section)))	/* and not xref */
	continue;					/* dont output */

      /* 13 bytes egsd, max 64 chars name -> should be 77 bytes  */

      if (_bfd_evax_output_check (abfd, 80) < 0)
	{
	  _bfd_evax_output_pop (abfd);
	  _bfd_evax_output_end (abfd);
	  _bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
	  _bfd_evax_output_long (abfd, 0);
	  _bfd_evax_output_push (abfd);		/* prepare output for subrecords */
	}

      _bfd_evax_output_begin (abfd, EGSD_S_C_SYM, -1);

      _bfd_evax_output_short (abfd, 0);			/* data type, alignment */

      new_flags = 0;
      if (old_flags & BSF_WEAK)
	new_flags |= EGSY_S_V_WEAK;
      if (old_flags & BSF_FUNCTION)
	{
	  new_flags |= EGSY_S_V_NORM;
	  new_flags |= EGSY_S_V_REL;
	}
      if (old_flags & BSF_GLOBAL)
	{
	  new_flags |= EGSY_S_V_DEF;
	  if (!bfd_is_abs_section (symbol->section))
	    new_flags |= EGSY_S_V_REL;
	}
      _bfd_evax_output_short (abfd, new_flags);

      if (old_flags & BSF_GLOBAL)			/* symbol definition */
	{
	  if (old_flags & BSF_FUNCTION)
	    {
	      _bfd_evax_output_quad (abfd, symbol->value);
	      _bfd_evax_output_quad (abfd,
				     ((asymbol *)(symbol->udata.p))->value);
	      _bfd_evax_output_long (abfd,
				     (((asymbol *)(symbol->udata.p))
				      ->section->index));
	      _bfd_evax_output_long (abfd, symbol->section->index);
	    }
	  else
	    {
	      _bfd_evax_output_quad (abfd, symbol->value);	/* L_VALUE */
	      _bfd_evax_output_quad (abfd, 0);			/* L_CODE_ADDRESS */
	      _bfd_evax_output_long (abfd, 0);			/* L_CA_PSINDX */
	      _bfd_evax_output_long (abfd, symbol->section->index);/* L_PSINDX, FIXME */
	    }
	}
      _bfd_evax_output_counted (abfd, _bfd_evax_length_hash_symbol (abfd, symbol->name));

      _bfd_evax_output_flush (abfd);

    }

  _bfd_evax_output_alignment (abfd, 8);
  _bfd_evax_output_pop (abfd);
  _bfd_evax_output_end (abfd); 

  return 0;
}
Commit	Line	Data
8696b2db ILT	1	/* evax-egsd.c -- BFD back-end for ALPHA EVAX (openVMS/Alpha) files.
8696b2db ILT	2	Copyright 1996, 1997 Free Software Foundation Inc.
c3d8e071 ILT	3
	4	go and read the openVMS linker manual (esp. appendix B)
	5	if you don't know what's going on here :-)
	6
8696b2db	7	Written by Klaus K"ampf (kkaempf@progis.de)
c3d8e071 ILT	8	of proGIS Softwareentwicklung, Aachen, Germany
	9
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 2 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
	21	along with this program; if not, write to the Free Software
	22	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	23
	24
	25	#include <stdio.h>
	26	#include <ctype.h>
	27
	28	#include "bfd.h"
	29	#include "sysdep.h"
	30	#include "bfdlink.h"
	31	#include "libbfd.h"
	32
	33	#include "evax.h"
	34
	35	/-----------------------------------------------------------------------------/
	36
	37	/* sections every evax object file has */
	38
	39	#define EVAX_ABS_NAME "$ABS$"
	40	#define EVAX_CODE_NAME "$CODE$"
	41	#define EVAX_LINK_NAME "$LINK$"
	42	#define EVAX_DATA_NAME "$DATA$"
	43	#define EVAX_BSS_NAME "$BSS$"
	44	#define EVAX_READONLY_NAME "$READONLY$"
	45	#define EVAX_LITERAL_NAME "$LITERAL$"
8696b2db ILT	46	#define EVAX_COMMON_NAME "$COMMON$"
8696b2db ILT	47	#define EVAX_LOCAL_NAME "$LOCAL$"
c3d8e071 ILT	48
	49	struct sec_flags_struct {
	50	char name; / name of section */
	51	int eflags_always;
	52	flagword flags_always; /* flags we set always */
	53	int eflags_hassize;
	54	flagword flags_hassize; /* flags we set if the section has a size > 0 */
	55	};
	56
	57	/* just a dummy flag array since i don't understand it yet */
	58
	59	static struct sec_flags_struct evax_section_flags[] = {
	60	{ EVAX_ABS_NAME,
	61	(EGPS_S_V_SHR),
	62	(SEC_DATA),
	63	(EGPS_S_V_SHR),
	64	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_LOAD) },
	65	{ EVAX_CODE_NAME,
	66	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_EXE),
	67	(SEC_CODE),
	68	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_EXE),
	69	(SEC_IN_MEMORY\|SEC_CODE\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_LOAD) },
	70	{ EVAX_LINK_NAME,
	71	(EGPS_S_V_REL\|EGPS_S_V_RD),
	72	(SEC_DATA\|SEC_READONLY),
	73	(EGPS_S_V_REL\|EGPS_S_V_RD),
	74	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_READONLY\|SEC_LOAD) },
	75	{ EVAX_DATA_NAME,
	76	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT),
	77	(SEC_DATA),
	78	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT),
	79	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_LOAD) },
	80	{ EVAX_BSS_NAME,
	81	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT\|EGPS_S_V_NOMOD),
	82	(SEC_NO_FLAGS),
	83	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT\|EGPS_S_V_NOMOD),
	84	(SEC_IN_MEMORY\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_LOAD) },
	85	{ EVAX_READONLY_NAME,
	86	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_RD),
	87	(SEC_DATA\|SEC_READONLY),
	88	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_RD),
	89	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_READONLY\|SEC_LOAD) },
	90	{ EVAX_LITERAL_NAME,
	91	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_RD),
	92	(SEC_DATA\|SEC_READONLY),
	93	(EGPS_S_V_PIC\|EGPS_S_V_REL\|EGPS_S_V_SHR\|EGPS_S_V_RD),
	94	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_READONLY\|SEC_LOAD) },
	95	{ NULL,
	96	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT),
	97	(SEC_DATA),
	98	(EGPS_S_V_REL\|EGPS_S_V_RD\|EGPS_S_V_WRT),
	99	(SEC_IN_MEMORY\|SEC_DATA\|SEC_HAS_CONTENTS\|SEC_ALLOC\|SEC_LOAD) }
	100	};
	101
	102	/* Retrieve bfd section flags by name and size */
	103
	104	static flagword
	105	evax_secflag_by_name(name, size)
	106	char *name;
	107	int size;
	108	{
	109	int i = 0;
	110
	111	while (evax_section_flags[i].name != NULL)
112	{
113	if (strcmp (name, evax_section_flags[i].name) == 0)
114	{
115	if (size > 0)
116	return evax_section_flags[i].flags_hassize;
117	else
118	return evax_section_flags[i].flags_always;
119	}
120	i++;
121	}
122	if (size > 0)
123	return evax_section_flags[i].flags_hassize;
124	return evax_section_flags[i].flags_always;
125	}
126
127
128	/* Retrieve evax section flags by name and size */
129
130	static flagword
131	evax_esecflag_by_name(name, size)
132	char *name;
133	int size;
134	{
135	int i = 0;
136
137	while (evax_section_flags[i].name != NULL)
138	{
139	if (strcmp (name, evax_section_flags[i].name) == 0)
140	{
141	if (size > 0)
142	return evax_section_flags[i].eflags_hassize;
143	else
144	return evax_section_flags[i].eflags_always;
145	}
146	i++;
147	}
148	if (size > 0)
149	return evax_section_flags[i].eflags_hassize;
150	return evax_section_flags[i].eflags_always;
151	}
152
153	/-----------------------------------------------------------------------------/
154	#if EVAX_DEBUG
155	/* debug */
156
157	struct flagdescstruct { char *name; flagword value; };
158
159	/* Convert flag to printable string */
160
161	static char *
162	flag2str(flagdesc, flags)
163	struct flagdescstruct *flagdesc;
164	flagword flags;
165	{
166
167	static char res[64];
168	int next = 0;
169
170	res[0] = 0;
171	while (flagdesc->name != NULL)
172	{
173	if ((flags & flagdesc->value) != 0)
174	{
175	if (next)
176	strcat(res, ",");
177	else
178	next = 1;
179	strcat (res, flagdesc->name);
180	}
181	flagdesc++;
182	}
183	return res;
184	}
185	#endif
186
187	/-----------------------------------------------------------------------------/
188	/* input routines */
189
190	/* Process EGSD record
191	return 0 on success, -1 on error */
192
193	int
194	_bfd_evax_slurp_egsd (abfd)
195	bfd *abfd;
196	{
197	#if EVAX_DEBUG
198	static struct flagdescstruct gpsflagdesc[] =
199	{
200	{ "PIC", 0x0001 },
201	{ "LIB", 0x0002 },
202	{ "OVR", 0x0004 },
203	{ "REL", 0x0008 },
204	{ "GBL", 0x0010 },
205	{ "SHR", 0x0020 },
206	{ "EXE", 0x0040 },
207	{ "RD", 0x0080 },
208	{ "WRT", 0x0100 },
209	{ "VEC", 0x0200 },
210	{ "NOMOD", 0x0400 },
211	{ "COM", 0x0800 },
212	{ NULL, 0 }
213	};
214
215	static struct flagdescstruct gsyflagdesc[] =
216	{
217	{ "WEAK", 0x0001 },
218	{ "DEF", 0x0002 },
219	{ "UNI", 0x0004 },
220	{ "REL", 0x0008 },
221	{ "COMM", 0x0010 },
222	{ "VECEP", 0x0020 },
223	{ "NORM", 0x0040 },
224	{ NULL, 0 }
225	};
226	#endif
227
228	int gsd_type, gsd_size;
229	asection *section;
230	unsigned char *evax_rec;
231	flagword new_flags, old_flags;
232	char *name;
233	asymbol *symbol;
234	evax_symbol_entry *entry;
235	unsigned long base_addr;
236	unsigned long align_addr;
237
238	#if EVAX_DEBUG
239	evax_debug (2, "EGSD\n");
240	#endif
241
242	PRIV(evax_rec) += 8; /* skip type, size, l_temp */
243	PRIV(rec_size) -= 8;
244
245	/* calculate base address for each section */
246	base_addr = 0L;
247
248	abfd->symcount = 0;
249
250	while (PRIV(rec_size) > 0)
251	{
252	evax_rec = PRIV(evax_rec);
253	_bfd_evax_get_header_values (abfd, evax_rec, &gsd_type, &gsd_size);
254	switch (gsd_type)
255	{
256	case EGSD_S_C_PSC:
257	{
258	/* program section definition */
259
260	name = _bfd_evax_save_counted_string ((char *)evax_rec+12);
261	section = bfd_make_section (abfd, name);
262	if (!section)
263	return -1;
264	old_flags = bfd_getl16 (evax_rec + 6);
265	section->_raw_size = bfd_getl32 (evax_rec + 8); /* allocation */
8612a388	266	new_flags = evax_secflag_by_name (name, (int) section->_raw_size);
c3d8e071 ILT	267	if (old_flags & EGPS_S_V_REL)
	268	new_flags \|= SEC_RELOC;
	269	if (!bfd_set_section_flags (abfd, section, new_flags))
	270	return -1;
	271	section->alignment_power = evax_rec[4];
	272	align_addr = (1 << section->alignment_power);
	273	if ((base_addr % align_addr) != 0)
	274	base_addr += (align_addr - (base_addr % align_addr));
	275	section->vma = (bfd_vma)base_addr;
8612a388 ILT	276	base_addr += section->_raw_size;
	277	section->contents = ((unsigned char *)
	278	bfd_malloc (section->_raw_size));
c3d8e071	279	if (section->contents == NULL)
8612a388 ILT	280	return -1;
	281	memset (section->contents, 0, (size_t) section->_raw_size);
	282	section->_cooked_size = section->_raw_size;
c3d8e071 ILT	283	#if EVAX_DEBUG
	284	evax_debug(3, "egsd psc %d (%s, flags %04x=%s) ",
	285	section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
	286	evax_debug(3, "%d bytes at 0x%08lx (mem %p)\n",
	287	section->_raw_size, section->vma, section->contents);
	288	#endif
	289	}
	290	break;
	291
	292	case EGSD_S_C_SYM:
	293	{
	294	/* symbol specification (definition or reference) */
	295
	296	symbol = _bfd_evax_make_empty_symbol (abfd);
	297	if (symbol == 0)
	298	return -1;
	299
	300	old_flags = bfd_getl16 (evax_rec + 6);
	301	new_flags = BSF_NO_FLAGS;
	302
	303	if (old_flags & EGSY_S_V_WEAK)
	304	new_flags \|= BSF_WEAK;
	305
	306	if (evax_rec[6] & EGSY_S_V_DEF) /* symbol definition */
	307	{
	308	symbol->name =
	309	_bfd_evax_save_counted_string ((char *)evax_rec+32);
	310	if (old_flags & EGSY_S_V_NORM)
	311	{ /* proc def */
	312	new_flags \|= BSF_FUNCTION;
	313	}
	314	symbol->value = bfd_getl64 (evax_rec+8);
	315	symbol->section = (asection *)((unsigned long) bfd_getl32 (evax_rec+28));
	316	#if EVAX_DEBUG
	317	evax_debug(3, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount,
	318	symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
	319	#endif
	320	}
	321	else /* symbol reference */
	322	{
c3d8e071 ILT	323	symbol->name =
c3d8e071 ILT	324	_bfd_evax_save_counted_string ((char *)evax_rec+8);
bf53bd9f ILT	325	#if EVAX_DEBUG
	326	evax_debug(3, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount,
	327	symbol->name, old_flags, flag2str(gsyflagdesc, old_flags));
	328	#endif
c3d8e071 ILT	329	symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
	330	}
	331
	332	symbol->flags = new_flags;
	333
	334	/* save symbol in evax_symbol_table */
	335
	336	entry = (evax_symbol_entry *) bfd_hash_lookup (PRIV(evax_symbol_table), symbol->name, true, false);
	337	if (entry == (evax_symbol_entry *)NULL)
	338	{
	339	bfd_set_error (bfd_error_no_memory);
	340	return -1;
	341	}
	342	if (entry->symbol != (asymbol *)NULL)
	343	{ /* FIXME ?, DEC C generates this */
	344	#if EVAX_DEBUG
	345	evax_debug(3, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
	346	#endif
	347	}
	348	else
	349	{
	350	entry->symbol = symbol;
	351	PRIV(egsd_sym_count)++;
	352	abfd->symcount++;
	353	}
	354	}
	355	break;
	356
	357	case EGSD_S_C_IDC:
	358	break;
	359
	360	default:
	361	(*_bfd_error_handler) ("unknown egsd subtype %d", gsd_type);
	362	bfd_set_error (bfd_error_bad_value);
	363	return -1;
	364
	365	} /* switch */
	366
	367	PRIV(rec_size) -= gsd_size;
	368	PRIV(evax_rec) += gsd_size;
	369
	370	} /* while (recsize > 0) */
	371
	372	if (abfd->symcount > 0)
	373	abfd->flags \|= HAS_SYMS;
	374
	375	return 0;
	376	}
	377
	378	/-----------------------------------------------------------------------------/
	379	/* output routines */
	380
	381	/* Write section and symbol directory of bfd abfd */
	382
	383	int
	384	_bfd_evax_write_egsd (abfd)
	385	bfd *abfd;
	386	{
	387	asection *section;
	388	asymbol *symbol;
	389	int symnum;
	390	int last_index = -1;
	391	char dummy_name[10];
	392	char *sname;
393	flagword new_flags, old_flags;
394	char uname[200];
395	char nptr, uptr;
396
397	#if EVAX_DEBUG
398	evax_debug (2, "evax_write_egsd(%p)\n", abfd);
399	#endif
400
401	/* output sections */
402
403	section = abfd->sections;
404	#if EVAX_DEBUG
405	evax_debug (3, "%d sections found\n", abfd->section_count);
406	#endif
407
408	/* egsd is quadword aligned */
409
410	_bfd_evax_output_alignment (abfd, 8);
411
412	_bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
413	_bfd_evax_output_long (abfd, 0);
414	_bfd_evax_output_push (abfd); /* prepare output for subrecords */
415
416	while (section != 0)
417	{
418	#if EVAX_DEBUG
419	evax_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size);
420	#endif
421
422	/* 13 bytes egsd, max 31 chars name -> should be 44 bytes */
423	if (_bfd_evax_output_check (abfd, 64) < 0)
424	{
425	_bfd_evax_output_pop (abfd);
426	_bfd_evax_output_end (abfd);
427	_bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
428	_bfd_evax_output_long (abfd, 0);
429	_bfd_evax_output_push (abfd); /* prepare output for subrecords */
430	}
431
432	/* Create dummy sections to keep consecutive indices */
433
434	while (section->index - last_index > 1)
435	{
436	#if EVAX_DEBUG
437	evax_debug (3, "index %d, last %d\n", section->index, last_index);
438	#endif
439	_bfd_evax_output_begin (abfd, EGSD_S_C_PSC, -1);
440	_bfd_evax_output_short (abfd, 0);
441	_bfd_evax_output_short (abfd, 0);
442	_bfd_evax_output_long (abfd, 0);
443	sprintf (dummy_name, ".DUMMY%02d", last_index);
444	_bfd_evax_output_counted (abfd, dummy_name);
445	_bfd_evax_output_flush (abfd);
446	last_index++;
447	}
448
449	/* Don't know if this is neccesary for the linker but for now it keeps
450	evax_slurp_egsd happy */
451
452	sname = (char *)section->name;
453	if (*sname == '.')
454	{
455	sname++;
456	if ((*sname == 't') && (strcmp (sname, "text") == 0))
457	sname = EVAX_CODE_NAME;
458	else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
459	sname = EVAX_DATA_NAME;
460	else if ((*sname == 'b') && (strcmp (sname, "bss") == 0))
461	sname = EVAX_BSS_NAME;
462	else if ((*sname == 'l') && (strcmp (sname, "link") == 0))
463	sname = EVAX_LINK_NAME;
464	else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0))
465	sname = EVAX_READONLY_NAME;
466	else if ((*sname == 'l') && (strcmp (sname, "literal") == 0))
467	sname = EVAX_LITERAL_NAME;
8696b2db ILT	468	else if ((*sname == 'c') && (strcmp (sname, "comm") == 0))
	469	sname = EVAX_COMMON_NAME;
	470	else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0))
	471	sname = EVAX_LOCAL_NAME;
c3d8e071 ILT	472	}
	473
	474	_bfd_evax_output_begin (abfd, EGSD_S_C_PSC, -1);
	475	_bfd_evax_output_short (abfd, section->alignment_power & 0xff);
	476	_bfd_evax_output_short (abfd,
	477	evax_esecflag_by_name (sname,
	478	section->_raw_size));
	479	_bfd_evax_output_long (abfd, section->_raw_size);
	480	_bfd_evax_output_counted (abfd, sname);
	481	_bfd_evax_output_flush (abfd);
	482
	483	last_index = section->index;
	484	section = section->next;
	485	}
	486
	487	/* output symbols */
	488
	489	#if EVAX_DEBUG
	490	evax_debug (3, "%d symbols found\n", abfd->symcount);
	491	#endif
	492
	493	bfd_set_start_address (abfd, (bfd_vma)-1);
	494
	495	for (symnum = 0; symnum < abfd->symcount; symnum++)
	496	{
	497
	498	symbol = abfd->outsymbols[symnum];
	499	if (*(symbol->name) == '_')
	500	{
	501	if (strcmp (symbol->name, "__main") == 0)
	502	bfd_set_start_address (abfd, (bfd_vma)symbol->value);
	503	}
	504	old_flags = symbol->flags;
	505
8696b2db ILT	506	if ((*(symbol->section->name+1) == 'c')
	507	&& (strcmp (symbol->section->name+1, "comm") == 0)
	508	&& (strcmp (symbol->name, ".comm") != 0))
	509	old_flags \|= BSF_GLOBAL;
	510
bf53bd9f ILT	511	if (old_flags & BSF_FILE)
	512	continue;
	513
c3d8e071 ILT	514	if (((old_flags & BSF_GLOBAL) == 0) /* not xdef */
	515	&& (!bfd_is_und_section (symbol->section))) /* and not xref */
	516	continue; /* dont output */
	517
	518	/* 13 bytes egsd, max 64 chars name -> should be 77 bytes */
	519
	520	if (_bfd_evax_output_check (abfd, 80) < 0)
	521	{
	522	_bfd_evax_output_pop (abfd);
	523	_bfd_evax_output_end (abfd);
	524	_bfd_evax_output_begin (abfd, EOBJ_S_C_EGSD, -1);
	525	_bfd_evax_output_long (abfd, 0);
	526	_bfd_evax_output_push (abfd); /* prepare output for subrecords */
	527	}
	528
	529	_bfd_evax_output_begin (abfd, EGSD_S_C_SYM, -1);
	530
	531	_bfd_evax_output_short (abfd, 0); /* data type, alignment */
	532
	533	new_flags = 0;
	534	if (old_flags & BSF_WEAK)
	535	new_flags \|= EGSY_S_V_WEAK;
	536	if (old_flags & BSF_FUNCTION)
	537	{
	538	new_flags \|= EGSY_S_V_NORM;
	539	new_flags \|= EGSY_S_V_REL;
	540	}
	541	if (old_flags & BSF_GLOBAL)
	542	{
	543	new_flags \|= EGSY_S_V_DEF;
	544	if (!bfd_is_abs_section (symbol->section))
	545	new_flags \|= EGSY_S_V_REL;
	546	}
	547	_bfd_evax_output_short (abfd, new_flags);
	548
	549	if (old_flags & BSF_GLOBAL) /* symbol definition */
	550	{
	551	if (old_flags & BSF_FUNCTION)
	552	{
	553	_bfd_evax_output_quad (abfd, symbol->value);
	554	_bfd_evax_output_quad (abfd,
	555	((asymbol *)(symbol->udata.p))->value);
	556	_bfd_evax_output_long (abfd,
	557	(((asymbol *)(symbol->udata.p))
	558	->section->index));
	559	_bfd_evax_output_long (abfd, symbol->section->index);
	560	}
	561	else
	562	{
	563	_bfd_evax_output_quad (abfd, symbol->value); /* L_VALUE */
	564	_bfd_evax_output_quad (abfd, 0); /* L_CODE_ADDRESS */
	565	_bfd_evax_output_long (abfd, 0); /* L_CA_PSINDX */
	566	_bfd_evax_output_long (abfd, symbol->section->index);/* L_PSINDX, FIXME */
	567	}
	568	}
8696b2db	569	_bfd_evax_output_counted (abfd, _bfd_evax_length_hash_symbol (abfd, symbol->name));
c3d8e071 ILT	570
	571	_bfd_evax_output_flush (abfd);
	572
	573	}
	574
	575	_bfd_evax_output_alignment (abfd, 8);
	576	_bfd_evax_output_pop (abfd);
	577	_bfd_evax_output_end (abfd);
	578
	579	return 0;
	580	}