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binutils-gdb/bfd/vms-gsd.c

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/* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and
EVAX (openVMS/Alpha) files.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
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@rmi.de)
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 "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "vms.h"
/*-----------------------------------------------------------------------------*/
/* typical sections for vax object files */
#define VAX_CODE_NAME "$CODE"
#define VAX_DATA_NAME "$DATA"
#define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA"
/* typical sections for evax object files */
#define EVAX_ABS_NAME "$ABS$"
#define EVAX_CODE_NAME "$CODE$"
#define EVAX_LINK_NAME "$LINK$"
#define EVAX_DATA_NAME "$DATA$"
#define EVAX_BSS_NAME "$BSS$"
#define EVAX_READONLYADDR_NAME "$READONLY_ADDR$"
#define EVAX_READONLY_NAME "$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 vflags_always;
flagword flags_always; /* flags we set always */
int vflags_hassize;
flagword flags_hassize; /* flags we set if the section has a size > 0 */
};
/* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible */
static struct sec_flags_struct vax_section_flags[] = {
{ VAX_CODE_NAME,
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
(SEC_CODE),
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD),
(SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
{ VAX_DATA_NAME,
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
(SEC_DATA),
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT),
(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) },
{ VAX_ADDRESS_DATA_NAME,
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
(SEC_DATA|SEC_READONLY),
(GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD),
(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
{ NULL,
(GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
(SEC_DATA),
(GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT),
(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }
};
/* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible */
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_LITERAL_NAME,
(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
(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_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|EGPS_S_V_NOMOD),
(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_READONLYADDR_NAME,
(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
(SEC_DATA|SEC_READONLY),
(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD),
(SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) },
{ EVAX_READONLY_NAME,
(EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD),
(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_LOCAL_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) },
{ 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) }
};
static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int));
static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int));
/* Retrieve bfd section flags by name and size */
static flagword
vms_secflag_by_name (abfd, section_flags, name, hassize)
bfd *abfd;
struct sec_flags_struct *section_flags;
char *name;
int hassize;
{
int i = 0;
while (section_flags[i].name != NULL)
{
if ((PRIV(is_vax)?
strcasecmp (name, section_flags[i].name):
strcmp (name, section_flags[i].name)) == 0)
{
if (hassize)
return section_flags[i].flags_hassize;
else
return section_flags[i].flags_always;
}
i++;
}
if (hassize)
return section_flags[i].flags_hassize;
return section_flags[i].flags_always;
}
/* Retrieve vms section flags by name and size */
static flagword
vms_esecflag_by_name (section_flags, name, hassize)
struct sec_flags_struct *section_flags;
char *name;
int hassize;
{
int i = 0;
while (section_flags[i].name != NULL)
{
if (strcmp (name, section_flags[i].name) == 0)
{
if (hassize)
return section_flags[i].vflags_hassize;
else
return section_flags[i].vflags_always;
}
i++;
}
if (hassize)
return section_flags[i].vflags_hassize;
return section_flags[i].vflags_always;
}
/*-----------------------------------------------------------------------------*/
#if VMS_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 GSD/EGSD record
return 0 on success, -1 on error */
int
_bfd_vms_slurp_gsd (abfd, objtype)
bfd *abfd;
int objtype;
{
#if VMS_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 *vms_rec;
flagword new_flags, old_flags;
char *name;
asymbol *symbol;
vms_symbol_entry *entry;
unsigned long base_addr;
unsigned long align_addr;
static unsigned int psect_idx = 0;
#if VMS_DEBUG
vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype);
#endif
switch (objtype)
{
case EOBJ_S_C_EGSD:
PRIV(vms_rec) += 8; /* skip type, size, l_temp */
PRIV(rec_size) -= 8;
break;
case OBJ_S_C_GSD:
PRIV(vms_rec) += 1;
PRIV(rec_size) -= 1;
break;
default:
return -1;
}
/* calculate base address for each section */
base_addr = 0L;
abfd->symcount = 0;
while (PRIV(rec_size) > 0)
{
vms_rec = PRIV(vms_rec);
if (objtype == OBJ_S_C_GSD)
{
gsd_type = *vms_rec;
}
else
{
_bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size);
gsd_type += EVAX_OFFSET;
}
#if VMS_DEBUG
vms_debug (3, "gsd_type %d\n", gsd_type);
#endif
switch (gsd_type)
{
case GSD_S_C_PSC:
{
/*
* program section definition
*/
asection *old_section = 0;
#if VMS_DEBUG
vms_debug (4, "GSD_S_C_PSC\n");
#endif
/* If this section isn't a bfd section. */
if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1)))
{
/* check for temporary section from TIR record. */
if (psect_idx < PRIV(section_count))
old_section = PRIV(sections)[psect_idx];
else
old_section = 0;
}
name = _bfd_vms_save_counted_string (vms_rec + 8);
section = bfd_make_section (abfd, name);
if (!section)
{
(*_bfd_error_handler) (_("bfd_make_section (%s) failed"),
name);
return -1;
}
old_flags = bfd_getl16 (vms_rec + 2);
section->_raw_size = bfd_getl32 (vms_rec + 4); /* allocation */
new_flags = vms_secflag_by_name (abfd, vax_section_flags, name,
section->_raw_size > 0);
if (old_flags & EGPS_S_V_REL)
new_flags |= SEC_RELOC;
if (old_flags & GPS_S_M_OVR)
new_flags |= SEC_IS_COMMON;
if (!bfd_set_section_flags (abfd, section, new_flags))
{
(*_bfd_error_handler)
(_("bfd_set_section_flags (%s, %x) failed"),
name, new_flags);
return -1;
}
section->alignment_power = vms_rec[1];
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;
/* global section is common symbol */
if (old_flags & GPS_S_M_GBL)
{
entry = _bfd_vms_enter_symbol (abfd, name);
if (entry == (vms_symbol_entry *)NULL)
{
bfd_set_error (bfd_error_no_memory);
return -1;
}
symbol = entry->symbol;
symbol->value = 0;
symbol->section = section;
symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON);
}
/* copy saved contents if old_section set */
if (old_section != 0)
{
section->contents = old_section->contents;
if (section->_raw_size < old_section->_raw_size)
{
(*_bfd_error_handler)
(_("Size mismatch section %s=%lx, %s=%lx"),
old_section->name,
(unsigned long) old_section->_raw_size,
section->name,
(unsigned long) section->_raw_size);
return -1;
}
else if (section->_raw_size > old_section->_raw_size)
{
section->contents = ((unsigned char *)
bfd_realloc (old_section->contents,
section->_raw_size));
if (section->contents == NULL)
{
bfd_set_error (bfd_error_no_memory);
return -1;
}
}
}
else
{
section->contents = ((unsigned char *)
bfd_zmalloc (section->_raw_size));
if (section->contents == NULL)
{
bfd_set_error (bfd_error_no_memory);
return -1;
}
}
section->_cooked_size = section->_raw_size;
#if VMS_DEBUG
vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ",
section->index, name, old_flags, flag2str (gpsflagdesc, old_flags));
vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n",
section->_raw_size, section->vma, section->contents);
#endif
gsd_size = vms_rec[8] + 9;
psect_idx++;
}
break;
case GSD_S_C_EPM:
case GSD_S_C_EPMW:
#if VMS_DEBUG
vms_debug(4, "gsd epm\n");
#endif
/*FALLTHRU*/
case GSD_S_C_SYM:
case GSD_S_C_SYMW:
{
int name_offset = 0, value_offset = 0;
/*
* symbol specification (definition or reference)
*/
#if VMS_DEBUG
vms_debug (4, "GSD_S_C_SYM(W)\n");
#endif
old_flags = bfd_getl16 (vms_rec + 2);
new_flags = BSF_NO_FLAGS;
if (old_flags & GSY_S_M_WEAK)
new_flags |= BSF_WEAK;
switch (gsd_type)
{
case GSD_S_C_EPM:
name_offset = 11;
value_offset = 5;
new_flags |= BSF_FUNCTION;
break;
case GSD_S_C_EPMW:
name_offset = 12;
value_offset = 6;
new_flags |= BSF_FUNCTION;
break;
case GSD_S_C_SYM:
if (old_flags & GSY_S_M_DEF) /* symbol definition */
name_offset = 9;
else
name_offset = 4;
value_offset = 5;
break;
case GSD_S_C_SYMW:
if (old_flags & GSY_S_M_DEF) /* symbol definition */
name_offset = 10;
else
name_offset = 5;
value_offset = 6;
break;
}
/* save symbol in vms_symbol_table */
entry = _bfd_vms_enter_symbol (abfd,
_bfd_vms_save_counted_string (vms_rec + name_offset));
if (entry == (vms_symbol_entry *)NULL)
{
bfd_set_error (bfd_error_no_memory);
return -1;
}
symbol = entry->symbol;
if (old_flags & GSY_S_M_DEF) /* symbol definition */
{
int psect;
symbol->value = bfd_getl32 (vms_rec+value_offset);
if ((gsd_type == GSD_S_C_SYMW)
|| (gsd_type == GSD_S_C_EPMW))
psect = bfd_getl16 (vms_rec + value_offset - 2);
else
psect = vms_rec[value_offset-1];
symbol->section = (asection *)psect;
#if VMS_DEBUG
vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount,
symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags));
#endif
}
else /* symbol reference */
{
symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
#if VMS_DEBUG
vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount,
symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags));
#endif
}
gsd_size = vms_rec[name_offset] + name_offset + 1;
symbol->flags = new_flags;
}
break;
case GSD_S_C_PRO:
case GSD_S_C_PROW:
#if VMS_DEBUG
vms_debug(4, "gsd pro\n");
#endif
break;
case GSD_S_C_IDC:
#if VMS_DEBUG
vms_debug(4, "gsd idc\n");
#endif
break;
case GSD_S_C_ENV:
#if VMS_DEBUG
vms_debug(4, "gsd env\n");
#endif
break;
case GSD_S_C_LSY:
#if VMS_DEBUG
vms_debug(4, "gsd lsy\n");
#endif
break;
case GSD_S_C_LEPM:
#if VMS_DEBUG
vms_debug(4, "gsd lepm\n");
#endif
break;
case GSD_S_C_LPRO:
#if VMS_DEBUG
vms_debug(4, "gsd lpro\n");
#endif
break;
case GSD_S_C_SPSC:
#if VMS_DEBUG
vms_debug(4, "gsd spsc\n");
#endif
break;
case GSD_S_C_SYMV:
#if VMS_DEBUG
vms_debug(4, "gsd symv\n");
#endif
break;
case GSD_S_C_EPMV:
#if VMS_DEBUG
vms_debug(4, "gsd epmv\n");
#endif
break;
case GSD_S_C_PROV:
#if VMS_DEBUG
vms_debug(4, "gsd prov\n");
#endif
break;
case EGSD_S_C_PSC + EVAX_OFFSET:
{
/* program section definition */
name = _bfd_vms_save_counted_string (vms_rec+12);
section = bfd_make_section (abfd, name);
if (!section)
return -1;
old_flags = bfd_getl16 (vms_rec + 6);
section->_raw_size = bfd_getl32 (vms_rec + 8); /* allocation */
new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
section->_raw_size > 0);
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 = vms_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_zmalloc (section->_raw_size));
if (section->contents == NULL)
return -1;
section->_cooked_size = section->_raw_size;
#if VMS_DEBUG
vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ",
section->index, name, old_flags, flag2str(gpsflagdesc, old_flags));
vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n",
section->_raw_size, section->vma, section->contents);
#endif
}
break;
case EGSD_S_C_SYM + EVAX_OFFSET:
{
/* symbol specification (definition or reference) */
symbol = bfd_make_empty_symbol (abfd);
if (symbol == 0)
return -1;
old_flags = bfd_getl16 (vms_rec + 6);
new_flags = BSF_NO_FLAGS;
if (old_flags & EGSY_S_V_WEAK)
new_flags |= BSF_WEAK;
if (vms_rec[6] & EGSY_S_V_DEF) /* symbol definition */
{
symbol->name =
_bfd_vms_save_counted_string (vms_rec+32);
if (old_flags & EGSY_S_V_NORM)
{ /* proc def */
new_flags |= BSF_FUNCTION;
}
symbol->value = bfd_getl64 (vms_rec+8);
symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28));
#if VMS_DEBUG
vms_debug(4, "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_vms_save_counted_string (vms_rec+8);
#if VMS_DEBUG
vms_debug(4, "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 vms_symbol_table */
entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table),
symbol->name,
TRUE, FALSE);
if (entry == (vms_symbol_entry *)NULL)
{
bfd_set_error (bfd_error_no_memory);
return -1;
}
if (entry->symbol != (asymbol *)NULL)
{ /* FIXME ?, DEC C generates this */
#if VMS_DEBUG
vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name);
#endif
}
else
{
entry->symbol = symbol;
PRIV(gsd_sym_count)++;
abfd->symcount++;
}
}
break;
case EGSD_S_C_IDC + EVAX_OFFSET:
break;
default:
(*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type);
bfd_set_error (bfd_error_bad_value);
return -1;
} /* switch */
PRIV(rec_size) -= gsd_size;
PRIV(vms_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_vms_write_gsd (abfd, objtype)
bfd *abfd;
int objtype ATTRIBUTE_UNUSED;
{
asection *section;
asymbol *symbol;
unsigned int symnum;
int last_index = -1;
char dummy_name[10];
char *sname;
flagword new_flags, old_flags;
#if VMS_DEBUG
vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype);
#endif
/* output sections */
section = abfd->sections;
#if VMS_DEBUG
vms_debug (3, "%d sections found\n", abfd->section_count);
#endif
/* egsd is quadword aligned */
_bfd_vms_output_alignment (abfd, 8);
_bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
_bfd_vms_output_long (abfd, 0);
_bfd_vms_output_push (abfd); /* prepare output for subrecords */
while (section != 0)
{
#if VMS_DEBUG
vms_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_vms_output_check (abfd, 64) < 0)
{
_bfd_vms_output_pop (abfd);
_bfd_vms_output_end (abfd);
_bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
_bfd_vms_output_long (abfd, 0);
_bfd_vms_output_push (abfd); /* prepare output for subrecords */
}
/* Create dummy sections to keep consecutive indices */
while (section->index - last_index > 1)
{
#if VMS_DEBUG
vms_debug (3, "index %d, last %d\n", section->index, last_index);
#endif
_bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
_bfd_vms_output_short (abfd, 0);
_bfd_vms_output_short (abfd, 0);
_bfd_vms_output_long (abfd, 0);
sprintf (dummy_name, ".DUMMY%02d", last_index);
_bfd_vms_output_counted (abfd, dummy_name);
_bfd_vms_output_flush (abfd);
last_index++;
}
/* Don't know if this is neccesary for the linker but for now it keeps
vms_slurp_gsd happy */
sname = (char *)section->name;
if (*sname == '.')
{
sname++;
if ((*sname == 't') && (strcmp (sname, "text") == 0))
sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME;
else if ((*sname == 'd') && (strcmp (sname, "data") == 0))
sname = PRIV(is_vax)?VAX_DATA_NAME: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;
}
else
sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ);
_bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1);
_bfd_vms_output_short (abfd, section->alignment_power & 0xff);
if (bfd_is_com_section (section))
{
new_flags = (EGPS_S_V_OVR|EGPS_S_V_REL|EGPS_S_V_GBL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD|EGPS_S_V_COM);
}
else
{
new_flags = vms_esecflag_by_name (evax_section_flags, sname,
section->_raw_size > 0);
}
_bfd_vms_output_short (abfd, new_flags);
_bfd_vms_output_long (abfd, (unsigned long) section->_raw_size);
_bfd_vms_output_counted (abfd, sname);
_bfd_vms_output_flush (abfd);
last_index = section->index;
section = section->next;
}
/* output symbols */
#if VMS_DEBUG
vms_debug (3, "%d symbols found\n", abfd->symcount);
#endif
bfd_set_start_address (abfd, (bfd_vma)-1);
for (symnum = 0; symnum < abfd->symcount; symnum++)
{
char *hash;
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 (old_flags & BSF_FILE)
continue;
if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 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_vms_output_check (abfd, 80) < 0)
{
_bfd_vms_output_pop (abfd);
_bfd_vms_output_end (abfd);
_bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1);
_bfd_vms_output_long (abfd, 0);
_bfd_vms_output_push (abfd); /* prepare output for subrecords */
}
_bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1);
_bfd_vms_output_short (abfd, 0); /* data type, alignment */
new_flags = 0;
if (old_flags & BSF_WEAK)
new_flags |= EGSY_S_V_WEAK;
if (bfd_is_com_section (symbol->section)) /* .comm */
new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM);
if (old_flags & BSF_FUNCTION)
{
new_flags |= EGSY_S_V_NORM;
new_flags |= EGSY_S_V_REL;
}
if (old_flags & (BSF_GLOBAL|BSF_WEAK))
{
new_flags |= EGSY_S_V_DEF;
if (!bfd_is_abs_section (symbol->section))
new_flags |= EGSY_S_V_REL;
}
_bfd_vms_output_short (abfd, new_flags);
if (old_flags & (BSF_GLOBAL | BSF_WEAK)) /* symbol definition */
{
uquad code_address = 0;
unsigned long ca_psindx = 0;
unsigned long psindx;
if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL)
{
code_address = ((asymbol *) (symbol->udata.p))->value;
ca_psindx = ((asymbol *) (symbol->udata.p))->section->index;
}
psindx = symbol->section->index;
_bfd_vms_output_quad (abfd, symbol->value);
_bfd_vms_output_quad (abfd, code_address);
_bfd_vms_output_long (abfd, ca_psindx);
_bfd_vms_output_long (abfd, psindx);
}
hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ);
_bfd_vms_output_counted (abfd, hash);
_bfd_vms_output_flush (abfd);
}
_bfd_vms_output_alignment (abfd, 8);
_bfd_vms_output_pop (abfd);
_bfd_vms_output_end (abfd);
return 0;
}
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