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darling-gdb/bfd/vms.c
Richard Henderson 252b5132c7 19990502 sourceware import
1999-05-03 07:29:11 +00:00

1948 lines
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/* vms.c -- BFD back-end for VAX (openVMS/VAX) and
EVAX (openVMS/Alpha) files.
Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
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"
static boolean vms_initialize PARAMS ((bfd *));
static int priv_section_count;
static boolean fill_section_ptr PARAMS ((struct bfd_hash_entry *, PTR));
static boolean vms_fixup_sections PARAMS ((bfd *));
static boolean copy_symbols PARAMS ((struct bfd_hash_entry *, PTR));
static bfd_reloc_status_type reloc_nil
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static const struct bfd_target *vms_object_p PARAMS ((bfd *abfd));
static const struct bfd_target *vms_archive_p PARAMS ((bfd *abfd));
static boolean vms_mkobject PARAMS ((bfd *abfd));
static boolean vms_write_object_contents PARAMS ((bfd *abfd));
static boolean vms_close_and_cleanup PARAMS ((bfd *abfd));
static boolean vms_bfd_free_cached_info PARAMS ((bfd *abfd));
static boolean vms_new_section_hook PARAMS ((bfd *abfd, asection *section));
static boolean vms_get_section_contents
PARAMS ((bfd *abfd, asection *section, PTR x1, file_ptr x2,
bfd_size_type x3));
static boolean vms_get_section_contents_in_window
PARAMS ((bfd *abfd, asection *section, bfd_window *w, file_ptr offset,
bfd_size_type count));
static boolean vms_bfd_copy_private_bfd_data PARAMS ((bfd *src, bfd *dest));
static boolean vms_bfd_copy_private_section_data
PARAMS ((bfd *srcbfd, asection *srcsec, bfd *dstbfd, asection *dstsec));
static boolean vms_bfd_copy_private_symbol_data
PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
static boolean vms_bfd_print_private_bfd_data
PARAMS ((bfd *abfd, void *file));
static char *vms_core_file_failing_command PARAMS ((bfd *abfd));
static int vms_core_file_failing_signal PARAMS ((bfd *abfd));
static boolean vms_core_file_matches_executable_p
PARAMS ((bfd *abfd, bfd *bbfd));
static boolean vms_slurp_armap PARAMS ((bfd *abfd));
static boolean vms_slurp_extended_name_table PARAMS ((bfd *abfd));
static boolean vms_construct_extended_name_table
PARAMS ((bfd *abfd, char **tabloc, bfd_size_type *tablen,
const char **name));
static void vms_truncate_arname
PARAMS ((bfd *abfd, CONST char *pathname, char *arhdr));
static boolean vms_write_armap
PARAMS ((bfd *arch, unsigned int elength, struct orl *map,
unsigned int orl_count, int stridx));
static PTR vms_read_ar_hdr PARAMS ((bfd *abfd));
static bfd *vms_get_elt_at_index PARAMS ((bfd *abfd, symindex index));
static bfd *vms_openr_next_archived_file PARAMS ((bfd *arch, bfd *prev));
static boolean vms_update_armap_timestamp PARAMS ((bfd *abfd));
static int vms_generic_stat_arch_elt PARAMS ((bfd *abfd, struct stat *stat));
static long vms_get_symtab_upper_bound PARAMS ((bfd *abfd));
static long vms_get_symtab PARAMS ((bfd *abfd, asymbol **symbols));
static void vms_print_symbol
PARAMS ((bfd *abfd, PTR file, asymbol *symbol, bfd_print_symbol_type how));
static void vms_get_symbol_info
PARAMS ((bfd *abfd, asymbol *symbol, symbol_info *ret));
static boolean vms_bfd_is_local_label_name PARAMS ((bfd *abfd, const char *));
static alent *vms_get_lineno PARAMS ((bfd *abfd, asymbol *symbol));
static boolean vms_find_nearest_line
PARAMS ((bfd *abfd, asection *section, asymbol **symbols, bfd_vma offset,
const char **file, const char **func, unsigned int *line));
static asymbol *vms_bfd_make_debug_symbol
PARAMS ((bfd *abfd, void *ptr, unsigned long size));
static long vms_read_minisymbols
PARAMS ((bfd *abfd, boolean dynamic, PTR *minisymsp, unsigned int *sizep));
static asymbol *vms_minisymbol_to_symbol
PARAMS ((bfd *abfd, boolean dynamic, const PTR minisym, asymbol *sym));
static long vms_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
static long vms_canonicalize_reloc
PARAMS ((bfd *abfd, asection *srcsec, arelent **location,
asymbol **symbols));
static const struct reloc_howto_struct *vms_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static boolean vms_set_arch_mach
PARAMS ((bfd *abfd, enum bfd_architecture arch, unsigned long mach));
static boolean vms_set_section_contents
PARAMS ((bfd *abfd, asection *section, PTR location, file_ptr offset,
bfd_size_type count));
static int vms_sizeof_headers PARAMS ((bfd *abfd, boolean reloc));
static bfd_byte *vms_bfd_get_relocated_section_contents
PARAMS ((bfd *abfd, struct bfd_link_info *link_info,
struct bfd_link_order *link_order, bfd_byte *data,
boolean relocateable, asymbol **symbols));
static boolean vms_bfd_relax_section
PARAMS ((bfd *abfd, asection *section, struct bfd_link_info *link_info,
boolean *again));
static boolean vms_bfd_gc_sections
PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
static struct bfd_link_hash_table *vms_bfd_link_hash_table_create
PARAMS ((bfd *abfd));
static boolean vms_bfd_link_add_symbols
PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
static boolean vms_bfd_final_link
PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
static boolean vms_bfd_link_split_section
PARAMS ((bfd *abfd, asection *section));
static long vms_get_dynamic_symtab_upper_bound PARAMS ((bfd *abfd));
static long vms_canonicalize_dynamic_symtab
PARAMS ((bfd *abfd, asymbol **symbols));
static long vms_get_dynamic_reloc_upper_bound PARAMS ((bfd *abfd));
static long vms_canonicalize_dynamic_reloc
PARAMS ((bfd *abfd, arelent **arel, asymbol **symbols));
static boolean vms_bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
static boolean vms_bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
#define vms_make_empty_symbol _bfd_vms_make_empty_symbol
/*===========================================================================*/
const bfd_target vms_alpha_vec =
{
"vms-alpha", /* name */
bfd_target_evax_flavour,
false, /* data byte order is little */
false, /* header byte order is little */
(HAS_RELOC | HAS_SYMS
| WP_TEXT | D_PAGED), /* object flags */
(SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */
0, /* symbol_leading_char */
' ', /* ar_pad_char */
15, /* ar_max_namelen */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
{_bfd_dummy_target, vms_object_p, /* bfd_check_format */
vms_archive_p, _bfd_dummy_target},
{bfd_false, vms_mkobject, /* bfd_set_format */
_bfd_generic_mkarchive, bfd_false},
{bfd_false, vms_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
BFD_JUMP_TABLE_GENERIC (vms),
BFD_JUMP_TABLE_COPY (vms),
BFD_JUMP_TABLE_CORE (vms),
BFD_JUMP_TABLE_ARCHIVE (vms),
BFD_JUMP_TABLE_SYMBOLS (vms),
BFD_JUMP_TABLE_RELOCS (vms),
BFD_JUMP_TABLE_WRITE (vms),
BFD_JUMP_TABLE_LINK (vms),
BFD_JUMP_TABLE_DYNAMIC (vms),
(PTR) 0
};
const bfd_target vms_vax_vec =
{
"vms-vax", /* name */
bfd_target_ovax_flavour,
false, /* data byte order is little */
false, /* header byte order is little */
(HAS_RELOC | HAS_SYMS /* object flags */
| WP_TEXT | D_PAGED
| HAS_LINENO | HAS_DEBUG | HAS_LOCALS),
(SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* sect flags */
0, /* symbol_leading_char */
' ', /* ar_pad_char */
15, /* ar_max_namelen */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
{_bfd_dummy_target, vms_object_p, /* bfd_check_format */
vms_archive_p, _bfd_dummy_target},
{bfd_false, vms_mkobject, /* bfd_set_format */
_bfd_generic_mkarchive, bfd_false},
{bfd_false, vms_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
BFD_JUMP_TABLE_GENERIC (vms),
BFD_JUMP_TABLE_COPY (vms),
BFD_JUMP_TABLE_CORE (vms),
BFD_JUMP_TABLE_ARCHIVE (vms),
BFD_JUMP_TABLE_SYMBOLS (vms),
BFD_JUMP_TABLE_RELOCS (vms),
BFD_JUMP_TABLE_WRITE (vms),
BFD_JUMP_TABLE_LINK (vms),
BFD_JUMP_TABLE_DYNAMIC (vms),
(PTR) 0
};
/*===========================================================================*/
/* Initialize private data */
static boolean
vms_initialize (abfd)
bfd *abfd;
{
int i;
if (abfd->tdata.any != 0)
return true;
bfd_set_start_address (abfd, (bfd_vma)-1);
abfd->tdata.any = ((struct vms_private_data_struct*)
bfd_malloc (sizeof (struct vms_private_data_struct)));
if (abfd->tdata.any == 0)
return false;
#ifdef __ALPHA
PRIV(is_vax) = 0;
#else
PRIV(is_vax) = 1;
#endif
PRIV(vms_buf) = 0;
PRIV(buf_size) = 0;
PRIV(rec_length) = 0;
PRIV(file_format) = FF_UNKNOWN;
PRIV(fixup_done) = false;
PRIV(sections) = NULL;
PRIV(stack) = ((struct stack_struct *)
bfd_malloc (sizeof (struct stack_struct) * STACKSIZE));
if (PRIV(stack) == 0)
{
vms_init_no_mem1:
free (abfd->tdata.any);
abfd->tdata.any = 0;
return false;
}
PRIV(stackptr) = 0;
PRIV(vms_symbol_table) = ((struct bfd_hash_table *)
bfd_malloc (sizeof (struct bfd_hash_table)));
if (PRIV(vms_symbol_table) == 0)
{
vms_init_no_mem2:
free (PRIV(stack));
PRIV(stack) = 0;
goto vms_init_no_mem1;
}
if (!bfd_hash_table_init (PRIV(vms_symbol_table), _bfd_vms_hash_newfunc))
return false;
PRIV(location_stack) = ((struct location_struct *)
bfd_malloc (sizeof (struct location_struct)
* LOCATION_SAVE_SIZE));
if (PRIV(location_stack) == 0)
{
vms_init_no_mem3:
free (PRIV(vms_symbol_table));
PRIV(vms_symbol_table) = 0;
goto vms_init_no_mem2;
}
for (i = 0; i < VMS_SECTION_COUNT; i++)
PRIV(vms_section_table)[i] = NULL;
PRIV(output_buf) = (unsigned char *) malloc (MAX_OUTREC_SIZE);
if (PRIV(output_buf) == 0)
{
free (PRIV(location_stack));
PRIV(location_stack) = 0;
goto vms_init_no_mem3;
}
PRIV(push_level) = 0;
PRIV(pushed_size) = 0;
PRIV(length_pos) = 2;
PRIV(output_size) = 0;
PRIV(output_alignment) = 1;
return true;
}
/* Fill symbol->section with section ptr
symbol->section is filled with the section index for defined symbols
during reading the GSD/EGSD section. But we need the pointer to the
bfd section later.
It has the correct value for referenced (undefined section) symbols
called from bfd_hash_traverse in vms_fixup_sections */
static boolean
fill_section_ptr (entry, sections)
struct bfd_hash_entry *entry;
PTR sections;
{
asection *sec;
asymbol *sym;
sym = ((vms_symbol_entry *)entry)->symbol;
sec = sym->section;
#if VMS_DEBUG
vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec);
#endif
/* fill forward references (these contain section number, not section ptr). */
if ((int)sec < priv_section_count)
{
sec = ((vms_symbol_entry *)entry)->symbol->section =
((asection **)sections)[(int)sec];
}
if (strcmp (sym->name, sec->name) == 0)
sym->flags |= BSF_SECTION_SYM;
return true;
}
/* Fixup sections
set up all pointers and arrays, counters and sizes are fixed now
we build a private sections vector for easy access since sections
are always referenced by an index number.
alloc PRIV(sections) according to abfd->section_count
copy abfd->sections to PRIV(sections) */
static boolean
vms_fixup_sections (abfd)
bfd *abfd;
{
asection *s;
if (PRIV(fixup_done))
return true;
/*
* traverse symbol table and fill in all section pointers
*/
/* can't provide section count as argument to fill_section_ptr(). */
priv_section_count = PRIV(section_count);
bfd_hash_traverse (PRIV(vms_symbol_table), fill_section_ptr,
(PTR)(PRIV(sections)));
PRIV(fixup_done) = true;
return true;
}
/*===========================================================================*/
/* Check the format for a file being read.
Return a (bfd_target *) if it's an object file or zero if not. */
static const struct bfd_target *
vms_object_p (abfd)
bfd *abfd;
{
int err = 0;
int prev_type;
const struct bfd_target *target_vector = 0;
const bfd_arch_info_type *arch = 0;
#if VMS_DEBUG
vms_debug (1, "vms_object_p(%p)\n", abfd);
#endif
if (!vms_initialize (abfd))
{
fprintf (stderr, "vms_initialize () failed !!\n");
return 0;
}
if (bfd_seek (abfd, 0L, SEEK_SET))
{
bfd_set_error (bfd_error_file_truncated);
return 0;
}
prev_type = -1;
do
{
#if VMS_DEBUG
vms_debug (7, "reading at %08lx\n", bfd_tell(abfd));
#endif
if (_bfd_vms_next_record (abfd) < 0)
{
#if VMS_DEBUG
vms_debug (2, "next_record failed\n");
#endif
bfd_set_error (bfd_error_wrong_format);
return 0;
}
if ((prev_type == EOBJ_S_C_EGSD)
&& (PRIV(rec_type) != EOBJ_S_C_EGSD))
{
if (vms_fixup_sections (abfd) == false)
{
#if VMS_DEBUG
vms_debug (2, "vms_fixup_sections failed\n");
#endif
bfd_set_error (bfd_error_wrong_format);
return 0;
}
}
prev_type = PRIV(rec_type);
if (target_vector == 0)
{
if (prev_type <= OBJ_S_C_MAXRECTYP)
target_vector = &vms_vax_vec;
else
target_vector = &vms_alpha_vec;
}
switch (prev_type)
{
case OBJ_S_C_HDR:
case EOBJ_S_C_EMH:
err = _bfd_vms_slurp_hdr (abfd, prev_type);
break;
case OBJ_S_C_EOM:
case OBJ_S_C_EOMW:
case EOBJ_S_C_EEOM:
err = _bfd_vms_slurp_eom (abfd, prev_type);
break;
case OBJ_S_C_GSD:
case EOBJ_S_C_EGSD:
err = _bfd_vms_slurp_gsd (abfd, prev_type);
break;
case OBJ_S_C_TIR:
case EOBJ_S_C_ETIR:
err = _bfd_vms_slurp_tir (abfd, prev_type);
break;
case OBJ_S_C_DBG:
case EOBJ_S_C_EDBG:
err = _bfd_vms_slurp_dbg (abfd, prev_type);
break;
case OBJ_S_C_TBT:
case EOBJ_S_C_ETBT:
err = _bfd_vms_slurp_tbt (abfd, prev_type);
break;
case OBJ_S_C_LNK:
err = _bfd_vms_slurp_lnk (abfd, prev_type);
break;
default:
err = -1;
}
if (err != 0)
{
#if VMS_DEBUG
vms_debug (2, "slurp type %d failed with %d\n", prev_type, err);
#endif
bfd_set_error (bfd_error_wrong_format);
return 0;
}
}
while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW));
if (target_vector == &vms_vax_vec)
{
if (vms_fixup_sections (abfd) == false)
{
#if VMS_DEBUG
vms_debug (2, "vms_fixup_sections failed\n");
#endif
bfd_set_error (bfd_error_wrong_format);
return 0;
}
/* set arch_info to vax */
arch = bfd_scan_arch ("vax");
PRIV (is_vax) = 1;
#if VMS_DEBUG
vms_debug (2, "arch is vax\n");
#endif
}
else if (target_vector == &vms_alpha_vec)
{
/* set arch_info to alpha */
arch = bfd_scan_arch ("alpha");
PRIV (is_vax) = 0;
#if VMS_DEBUG
vms_debug (2, "arch is alpha\n");
#endif
}
if (arch == 0)
{
#if VMS_DEBUG
vms_debug (2, "arch not found\n");
#endif
bfd_set_error (bfd_error_wrong_format);
return 0;
}
abfd->arch_info = arch;
return target_vector;
}
/* Check the format for a file being read.
Return a (bfd_target *) if it's an archive file or zero. */
static const struct bfd_target *
vms_archive_p (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_archive_p(%p)\n", abfd);
#endif
return 0;
}
/* Set the format of a file being written. */
static boolean
vms_mkobject (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_mkobject(%p)\n", abfd);
#endif
if (!vms_initialize (abfd))
{
fprintf (stderr, "vms_initialize () failed !!\n");
return 0;
}
{
#ifdef __VAX
const bfd_arch_info_type *arch = bfd_scan_arch ("vax");
#else
const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
#endif
if (arch == 0)
{
bfd_set_error(bfd_error_wrong_format);
return 0;
}
abfd->arch_info = arch;
}
return true;
}
/* Write cached information into a file being written, at bfd_close. */
static boolean
vms_write_object_contents (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_write_object_contents(%p)\n", abfd);
#endif
if (abfd->section_count > 0) /* we have sections */
{
if (PRIV(is_vax))
{
if (_bfd_vms_write_hdr (abfd, OBJ_S_C_HDR) != 0)
return false;
if (_bfd_vms_write_gsd (abfd, OBJ_S_C_GSD) != 0)
return false;
if (_bfd_vms_write_tir (abfd, OBJ_S_C_TIR) != 0)
return false;
if (_bfd_vms_write_tbt (abfd, OBJ_S_C_TBT) != 0)
return false;
if (_bfd_vms_write_dbg (abfd, OBJ_S_C_DBG) != 0)
return false;
if (abfd->section_count > 255)
{
if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOMW) != 0)
return false;
}
else
{
if (_bfd_vms_write_eom (abfd, OBJ_S_C_EOM) != 0)
return false;
}
}
else
{
if (_bfd_vms_write_hdr (abfd, EOBJ_S_C_EMH) != 0)
return false;
if (_bfd_vms_write_gsd (abfd, EOBJ_S_C_EGSD) != 0)
return false;
if (_bfd_vms_write_tir (abfd, EOBJ_S_C_ETIR) != 0)
return false;
if (_bfd_vms_write_tbt (abfd, EOBJ_S_C_ETBT) != 0)
return false;
if (_bfd_vms_write_dbg (abfd, EOBJ_S_C_EDBG) != 0)
return false;
if (_bfd_vms_write_eom (abfd, EOBJ_S_C_EEOM) != 0)
return false;
}
}
return true;
}
/*-- 4.1, generic -----------------------------------------------------------*/
/* Called when the BFD is being closed to do any necessary cleanup. */
static boolean
vms_close_and_cleanup (abfd)
bfd *abfd;
{
asection *sec;
vms_section *es, *es1;
vms_reloc *er, *er1;
int i;
#if VMS_DEBUG
vms_debug (1, "vms_close_and_cleanup(%p)\n", abfd);
#endif
if (abfd == 0)
return true;
if (PRIV(vms_buf) != NULL)
{
free (PRIV(vms_buf));
PRIV(vms_buf) = NULL;
}
PRIV(buf_size) = 0;
if (PRIV(output_buf) != 0)
{
free (PRIV(output_buf));
PRIV(output_buf) = 0;
}
sec = abfd->sections;
while (sec != NULL)
{
if (sec->contents)
free (sec->contents);
sec = sec->next;
}
if (PRIV(sections) != NULL)
{
free (PRIV(sections));
PRIV(sections) = NULL;
}
if (PRIV(vms_symbol_table))
{
bfd_hash_table_free (PRIV(vms_symbol_table));
PRIV(vms_symbol_table) = 0;
}
if (PRIV(stack))
{
free (PRIV(stack));
PRIV(stack) = 0;
}
if (PRIV(location_stack))
{
free (PRIV(location_stack));
PRIV(location_stack) = 0;
}
for (i = 0; i < VMS_SECTION_COUNT; i++)
{
es = PRIV(vms_section_table)[i];
while (es != NULL)
{
es1 = es->next;
free (es);
es = es1;
}
PRIV(vms_section_table)[i] = NULL;
}
free (abfd->tdata.any);
abfd->tdata.any = NULL;
return true;
}
/* Ask the BFD to free all cached information. */
static boolean
vms_bfd_free_cached_info (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_free_cached_info(%p)\n", abfd);
#endif
return true;
}
/* Called when a new section is created. */
static boolean
vms_new_section_hook (abfd, section)
bfd *abfd;
asection *section;
{
#if VMS_DEBUG
vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n", abfd, section->index, section->name, abfd->section_count);
#endif
bfd_set_section_alignment(abfd, section, 4);
if (abfd->section_count > PRIV(section_count))
{
PRIV(sections) = ((asection **)
bfd_realloc (PRIV(sections), abfd->section_count * sizeof (asection *)));
if (PRIV(sections) == 0)
return false;
PRIV(section_count) = abfd->section_count;
}
#if VMS_DEBUG
vms_debug (6, "section_count: %d\n", PRIV(section_count));
#endif
PRIV(sections)[section->index] = section;
#if VMS_DEBUG
vms_debug (7, "%d: %s\n", section->index, section->name);
#endif
return true;
}
/* Read the contents of a section.
buf points to a buffer of buf_size bytes to be filled with
section data (starting at offset into section) */
static boolean
vms_get_section_contents (abfd, section, buf, offset, buf_size)
bfd *abfd;
asection *section;
PTR buf;
file_ptr offset;
bfd_size_type buf_size;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_section_contents(%p, %s, %p, off %ld, size %d)\n",
abfd, section->name, buf, offset, (int)buf_size);
#endif
/* shouldn't be called, since all sections are IN_MEMORY */
return false;
}
/* Read the contents of a section.
buf points to a buffer of buf_size bytes to be filled with
section data (starting at offset into section) */
static boolean
vms_get_section_contents_in_window (abfd, section, w, offset, count)
bfd *abfd;
asection *section;
bfd_window *w;
file_ptr offset;
bfd_size_type count;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_section_contents_in_window(%p, %s, %p, off %ld, count %d)\n",
abfd, section->name, w, offset, (int)count);
#endif
/* shouldn't be called, since all sections are IN_MEMORY */
return false;
}
/*-- Part 4.2, copy private data --------------------------------------------*/
/* Called to copy BFD general private data from one object file
to another. */
static boolean
vms_bfd_copy_private_bfd_data (src, dest)
bfd *src;
bfd *dest;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_copy_private_bfd_data(%p, %p)\n", src, dest);
#endif
return true;
}
/* Merge private BFD information from the BFD @var{ibfd} to the
the output file BFD @var{obfd} when linking. Return <<true>>
on success, <<false>> on error. Possible error returns are:
o <<bfd_error_no_memory>> -
Not enough memory exists to create private data for @var{obfd}. */
static boolean
vms_bfd_merge_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
#if VMS_DEBUG
vms_debug (1,"vms_bfd_merge_private_bfd_data(%p, %p)\n", ibfd, obfd);
#endif
return true;
}
/* Set private BFD flag information in the BFD @var{abfd}.
Return <<true>> on success, <<false>> on error. Possible error
returns are:
o <<bfd_error_no_memory>> -
Not enough memory exists to create private data for @var{obfd}. */
static boolean
vms_bfd_set_private_flags (abfd, flags)
bfd *abfd;
flagword flags;
{
#if VMS_DEBUG
vms_debug (1,"vms_bfd_set_private_flags(%p, %lx)\n", abfd, (long)flags);
#endif
return true;
}
/* Called to copy BFD private section data from one object file
to another. */
static boolean
vms_bfd_copy_private_section_data (srcbfd, srcsec, dstbfd, dstsec)
bfd *srcbfd;
asection *srcsec;
bfd *dstbfd;
asection *dstsec;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_copy_private_section_data(%p, %s, %p, %s)\n",
srcbfd, srcsec->name, dstbfd, dstsec->name);
#endif
return true;
}
/* Called to copy BFD private symbol data from one object file
to another. */
static boolean
vms_bfd_copy_private_symbol_data (ibfd, isym, obfd, osym)
bfd *ibfd;
asymbol *isym;
bfd *obfd;
asymbol *osym;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_copy_private_symbol_data(%p, %s, %p, %s)\n",
ibfd, isym->name, obfd, osym->name);
#endif
return true;
}
/*-- Part 4.3, core file ----------------------------------------------------*/
/* Return a read-only string explaining which program was running
when it failed and produced the core file abfd. */
static char *
vms_core_file_failing_command (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_core_file_failing_command(%p)\n", abfd);
#endif
return 0;
}
/* Returns the signal number which caused the core dump which
generated the file the BFD abfd is attached to. */
static int
vms_core_file_failing_signal (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_core_file_failing_signal(%p)\n", abfd);
#endif
return 0;
}
/* Return true if the core file attached to core_bfd was generated
by a run of the executable file attached to exec_bfd, false otherwise. */
static boolean
vms_core_file_matches_executable_p (abfd, bbfd)
bfd *abfd;
bfd *bbfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_core_file_matches_executable_p(%p, %p)\n", abfd, bbfd);
#endif
return false;
}
/*-- Part 4.4, archive ------------------------------------------------------*/
/* ??? do something with an archive map.
Return false on error, true otherwise. */
static boolean
vms_slurp_armap (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_slurp_armap(%p)\n", abfd);
#endif
return false;
}
/* ??? do something with an extended name table.
Return false on error, true otherwise. */
static boolean
vms_slurp_extended_name_table (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_slurp_extended_name_table(%p)\n", abfd);
#endif
return false;
}
/* ??? do something with an extended name table.
Return false on error, true otherwise. */
static boolean
vms_construct_extended_name_table (abfd, tabloc, tablen, name)
bfd *abfd;
char **tabloc;
bfd_size_type *tablen;
const char **name;
{
#if VMS_DEBUG
vms_debug (1, "vms_construct_extended_name_table(%p)\n", abfd);
#endif
return false;
}
/* Truncate the name of an archive to match system-dependent restrictions */
static void
vms_truncate_arname (abfd, pathname, arhdr)
bfd *abfd;
CONST char *pathname;
char *arhdr;
{
#if VMS_DEBUG
vms_debug (1, "vms_truncate_arname(%p, %s, %s)\n", abfd, pathname, arhdr);
#endif
return;
}
/* ??? write archive map */
static boolean
vms_write_armap (arch, elength, map, orl_count, stridx)
bfd *arch;
unsigned int elength;
struct orl *map;
unsigned int orl_count;
int stridx;
{
#if VMS_DEBUG
vms_debug (1, "vms_write_armap(%p, %d, %p, %d %d)\n",
arch, elength, map, orl_count, stridx);
#endif
return true;
}
/* Read archive header ??? */
static PTR
vms_read_ar_hdr (abfd)
bfd * abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_read_ar_hdr(%p)\n", abfd);
#endif
return (PTR)0;
}
/* Provided a BFD, @var{archive}, containing an archive and NULL, open
an input BFD on the first contained element and returns that.
Subsequent calls should pass the archive and the previous return value
to return a created BFD to the next contained element.
NULL is returned when there are no more. */
static bfd *
vms_openr_next_archived_file (arch, prev)
bfd *arch;
bfd *prev;
{
#if VMS_DEBUG
vms_debug (1, "vms_openr_next_archived_file(%p, %p)\n", arch, prev);
#endif
return false;
}
/* Return the BFD which is referenced by the symbol in ABFD indexed by
INDEX. INDEX should have been returned by bfd_get_next_mapent. */
static bfd *
vms_get_elt_at_index (abfd, index)
bfd *abfd;
symindex index;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_elt_at_index(%p, %p)\n", abfd, index);
#endif
return _bfd_generic_get_elt_at_index(abfd, index);
}
/* ???
-> bfd_generic_stat_arch_elt */
static int
vms_generic_stat_arch_elt (abfd, stat)
bfd *abfd;
struct stat *stat;
{
#if VMS_DEBUG
vms_debug (1, "vms_generic_stat_arch_elt(%p, %p)\n", abfd, stat);
#endif
return bfd_generic_stat_arch_elt(abfd, stat);
}
/* This is a new function in bfd 2.5 */
static boolean
vms_update_armap_timestamp (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_update_armap_timestamp(%p)\n", abfd);
#endif
return true;
}
/*-- Part 4.5, symbols --------------------------------------------------------*/
/* Return the number of bytes required to store a vector of pointers
to asymbols for all the symbols in the BFD abfd, including a
terminal NULL pointer. If there are no symbols in the BFD,
then return 0. If an error occurs, return -1. */
static long
vms_get_symtab_upper_bound (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_symtab_upper_bound(%p), %d symbols\n", abfd, PRIV(gsd_sym_count));
#endif
return (PRIV(gsd_sym_count)+1) * sizeof(asymbol *);
}
/* Copy symbols from hash table to symbol vector
called from bfd_hash_traverse in vms_get_symtab
init counter to 0 if entry == 0 */
static boolean
copy_symbols (entry, arg)
struct bfd_hash_entry *entry;
PTR arg;
{
bfd *abfd = (bfd *) arg;
if (entry == NULL) /* init counter */
PRIV(symnum) = 0;
else /* fill vector, inc counter */
PRIV(symcache)[PRIV(symnum)++] = ((vms_symbol_entry *)entry)->symbol;
return true;
}
/* Read the symbols from the BFD abfd, and fills in the vector
location with pointers to the symbols and a trailing NULL.
return # of symbols read */
static long
vms_get_symtab (abfd, symbols)
bfd *abfd;
asymbol **symbols;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_symtab(%p, <ret>)\n", abfd);
#endif
/* init counter */
(void)copy_symbols((struct bfd_hash_entry *)0, abfd);
/* traverse table and fill symbols vector */
PRIV(symcache) = symbols;
bfd_hash_traverse(PRIV(vms_symbol_table), copy_symbols, (PTR)abfd);
symbols[PRIV(gsd_sym_count)] = NULL;
return PRIV(gsd_sym_count);
}
/* Create a new asymbol structure for the BFD abfd and return a pointer
to it.
This routine is necessary because each back end has private information
surrounding the asymbol. Building your own asymbol and pointing to it
will not create the private information, and will cause problems later on. */
asymbol *
_bfd_vms_make_empty_symbol (abfd)
bfd *abfd;
{
asymbol *symbol = (asymbol *)bfd_zalloc(abfd, sizeof(asymbol));
#if VMS_DEBUG
vms_debug (1, "_bfd_vms_make_empty_symbol(%p)\n", abfd);
#endif
if (symbol == 0)
{
bfd_set_error (bfd_error_no_memory);
return 0;
}
symbol->the_bfd = abfd;
return symbol;
}
/* Print symbol to file according to how. how is one of
bfd_print_symbol_name just print the name
bfd_print_symbol_more print more (???)
bfd_print_symbol_all print all we know, which is not much right now :-) */
static void
vms_print_symbol (abfd, file, symbol, how)
bfd *abfd;
PTR file;
asymbol *symbol;
bfd_print_symbol_type how;
{
#if VMS_DEBUG
vms_debug (1, "vms_print_symbol(%p, %p, %p, %d)\n", abfd, file, symbol, how);
#endif
switch (how)
{
case bfd_print_symbol_name:
case bfd_print_symbol_more:
fprintf((FILE *)file," %s", symbol->name);
break;
break;
case bfd_print_symbol_all:
{
CONST char *section_name = symbol->section->name;
bfd_print_symbol_vandf((PTR)file,symbol);
fprintf((FILE *)file," %-8s %s", section_name, symbol->name);
}
break;
}
return;
}
/* Return information about symbol in ret.
fill type, value and name
type:
A absolute
B bss segment symbol
C common symbol
D data segment symbol
f filename
t a static function symbol
T text segment symbol
U undefined
- debug */
static void
vms_get_symbol_info (abfd, symbol, ret)
bfd *abfd;
asymbol *symbol;
symbol_info *ret;
{
asection *sec;
#if VMS_DEBUG
vms_debug (1, "vms_get_symbol_info(%p, %p, %p)\n", abfd, symbol, ret);
#endif
sec = symbol->section;
if (ret == 0)
return;
if (bfd_is_com_section (sec))
ret->type = 'C';
else if (bfd_is_abs_section (sec))
ret->type = 'A';
else if (bfd_is_und_section (sec))
ret->type = 'U';
else if (bfd_is_ind_section (sec))
ret->type = 'I';
else if (bfd_get_section_flags (abfd, sec) & SEC_CODE)
ret->type = 'T';
else if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
ret->type = 'D';
else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
ret->type = 'B';
else
ret->type = '-';
if (ret->type != 'U')
ret->value = symbol->value + symbol->section->vma;
else
ret->value = 0;
ret->name = symbol->name;
return;
}
/* Return true if the given symbol sym in the BFD abfd is
a compiler generated local label, else return false. */
static boolean
vms_bfd_is_local_label_name (abfd, name)
bfd *abfd;
const char *name;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_is_local_label_name(%p, %s)\n", abfd, name);
#endif
return name[0] == '$';
}
/* Get source line number for symbol */
static alent *
vms_get_lineno (abfd, symbol)
bfd *abfd;
asymbol *symbol;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_lineno(%p, %p)\n", abfd, symbol);
#endif
return 0;
}
/* Provided a BFD, a section and an offset into the section, calculate and
return the name of the source file and the line nearest to the wanted
location. */
static boolean
vms_find_nearest_line (abfd, section, symbols, offset, file, func, line)
bfd *abfd;
asection *section;
asymbol **symbols;
bfd_vma offset;
CONST char **file;
CONST char **func;
unsigned int *line;
{
#if VMS_DEBUG
vms_debug (1, "vms_find_nearest_line(%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n",
abfd, section->name, symbols, (long int)offset);
#endif
return false;
}
/* Back-door to allow format-aware applications to create debug symbols
while using BFD for everything else. Currently used by the assembler
when creating COFF files. */
static asymbol *
vms_bfd_make_debug_symbol (abfd, ptr, size)
bfd *abfd;
void *ptr;
unsigned long size;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_make_debug_symbol(%p, %p, %ld)\n", abfd, ptr, size);
#endif
return 0;
}
/* Read minisymbols. For minisymbols, we use the unmodified a.out
symbols. The minisymbol_to_symbol function translates these into
BFD asymbol structures. */
static long
vms_read_minisymbols (abfd, dynamic, minisymsp, sizep)
bfd *abfd;
boolean dynamic;
PTR *minisymsp;
unsigned int *sizep;
{
#if VMS_DEBUG
vms_debug (1, "vms_read_minisymbols(%p, %d, %p, %d)\n", abfd, dynamic, minisymsp, *sizep);
#endif
return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
}
/* Convert a minisymbol to a BFD asymbol. A minisymbol is just an
unmodified a.out symbol. The SYM argument is a structure returned
by bfd_make_empty_symbol, which we fill in here. */
static asymbol *
vms_minisymbol_to_symbol (abfd, dynamic, minisym, sym)
bfd *abfd;
boolean dynamic;
const PTR minisym;
asymbol *sym;
{
#if VMS_DEBUG
vms_debug (1, "vms_minisymbol_to_symbol(%p, %d, %p, %p)\n", abfd, dynamic, minisym, sym);
#endif
return _bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym);
}
/*-- Part 4.6, relocations --------------------------------------------------*/
/* Return the number of bytes required to store the relocation information
associated with section sect attached to bfd abfd.
If an error occurs, return -1. */
static long
vms_get_reloc_upper_bound (abfd, section)
bfd *abfd;
asection *section;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_reloc_upper_bound(%p, %s)\n", abfd, section->name);
#endif
return -1L;
}
/* Call the back end associated with the open BFD abfd and translate the
external form of the relocation information attached to sec into the
internal canonical form. Place the table into memory at loc, which has
been preallocated, usually by a call to bfd_get_reloc_upper_bound.
Returns the number of relocs, or -1 on error. */
static long
vms_canonicalize_reloc (abfd, section, location, symbols)
bfd *abfd;
asection *section;
arelent **location;
asymbol **symbols;
{
#if VMS_DEBUG
vms_debug (1, "vms_canonicalize_reloc(%p, %s, <ret>, <ret>)\n", abfd, section->name);
#endif
return false;
}
/*---------------------------------------------------------------------------*/
/* this is just copied from ecoff-alpha, needs to be fixed probably */
/* How to process the various reloc types. */
static bfd_reloc_status_type
reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message)
bfd *abfd;
arelent *reloc;
asymbol *sym;
PTR data;
asection *sec;
bfd *output_bfd;
char **error_message;
{
#if VMS_DEBUG
vms_debug (1, "reloc_nil(abfd %p, output_bfd %p)\n", abfd, output_bfd);
vms_debug (2, "In section %s, symbol %s\n",
sec->name, sym->name);
vms_debug (2, "reloc sym %s, addr %08lx, addend %08lx, reloc is a %s\n",
reloc->sym_ptr_ptr[0]->name,
(unsigned long)reloc->address,
(unsigned long)reloc->addend, reloc->howto->name);
vms_debug (2, "data at %p\n", data);
/* _bfd_hexdump (2, data, bfd_get_reloc_size(reloc->howto),0); */
#endif
return bfd_reloc_ok;
}
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
from smaller values. Start with zero, widen, *then* decrement. */
#define MINUS_ONE (((bfd_vma)0) - 1)
static reloc_howto_type alpha_howto_table[] =
{
HOWTO (ALPHA_R_IGNORE, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"IGNORE", /* name */
true, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
true), /* pcrel_offset */
/* A 64 bit reference to a symbol. */
HOWTO (ALPHA_R_REFQUAD, /* type */
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
reloc_nil, /* special_function */
"REFQUAD", /* name */
true, /* partial_inplace */
MINUS_ONE, /* src_mask */
MINUS_ONE, /* dst_mask */
false), /* pcrel_offset */
/* A 21 bit branch. The native assembler generates these for
branches within the text segment, and also fills in the PC
relative offset in the instruction. */
HOWTO (ALPHA_R_BRADDR, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
21, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
reloc_nil, /* special_function */
"BRADDR", /* name */
true, /* partial_inplace */
0x1fffff, /* src_mask */
0x1fffff, /* dst_mask */
false), /* pcrel_offset */
/* A hint for a jump to a register. */
HOWTO (ALPHA_R_HINT, /* type */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
14, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"HINT", /* name */
true, /* partial_inplace */
0x3fff, /* src_mask */
0x3fff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit PC relative offset. */
HOWTO (ALPHA_R_SREL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
reloc_nil, /* special_function */
"SREL16", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit PC relative offset. */
HOWTO (ALPHA_R_SREL32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
reloc_nil, /* special_function */
"SREL32", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* A 64 bit PC relative offset. */
HOWTO (ALPHA_R_SREL64, /* type */
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
reloc_nil, /* special_function */
"SREL64", /* name */
true, /* partial_inplace */
MINUS_ONE, /* src_mask */
MINUS_ONE, /* dst_mask */
false), /* pcrel_offset */
/* Push a value on the reloc evaluation stack. */
HOWTO (ALPHA_R_OP_PUSH, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"OP_PUSH", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Store the value from the stack at the given address. Store it in
a bitfield of size r_size starting at bit position r_offset. */
HOWTO (ALPHA_R_OP_STORE, /* type */
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"OP_STORE", /* name */
false, /* partial_inplace */
0, /* src_mask */
MINUS_ONE, /* dst_mask */
false), /* pcrel_offset */
/* Subtract the reloc address from the value on the top of the
relocation stack. */
HOWTO (ALPHA_R_OP_PSUB, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"OP_PSUB", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Shift the value on the top of the relocation stack right by the
given value. */
HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"OP_PRSHIFT", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Hack. Linkage is done by linker. */
HOWTO (ALPHA_R_LINKAGE, /* type */
0, /* rightshift */
8, /* size (0 = byte, 1 = short, 2 = long) */
256, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
reloc_nil, /* special_function */
"LINKAGE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* A 32 bit reference to a symbol. */
HOWTO (ALPHA_R_REFLONG, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
reloc_nil, /* special_function */
"REFLONG", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* A 64 bit reference to a procedure, written as 32 bit value. */
HOWTO (ALPHA_R_CODEADDR, /* type */
0, /* rightshift */
4, /* size (0 = byte, 1 = short, 2 = long) */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed,/* complain_on_overflow */
reloc_nil, /* special_function */
"CODEADDR", /* name */
false, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
};
/* Return a pointer to a howto structure which, when invoked, will perform
the relocation code on data from the architecture noted. */
static const struct reloc_howto_struct *
vms_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
int alpha_type;
#if VMS_DEBUG
vms_debug (1, "vms_bfd_reloc_type_lookup(%p, %d)\t", abfd, code);
#endif
switch (code)
{
case BFD_RELOC_16: alpha_type = ALPHA_R_SREL16; break;
case BFD_RELOC_32: alpha_type = ALPHA_R_REFLONG; break;
case BFD_RELOC_64: alpha_type = ALPHA_R_REFQUAD; break;
case BFD_RELOC_CTOR: alpha_type = ALPHA_R_REFQUAD; break;
case BFD_RELOC_23_PCREL_S2: alpha_type = ALPHA_R_BRADDR; break;
case BFD_RELOC_ALPHA_HINT: alpha_type = ALPHA_R_HINT; break;
case BFD_RELOC_16_PCREL: alpha_type = ALPHA_R_SREL16; break;
case BFD_RELOC_32_PCREL: alpha_type = ALPHA_R_SREL32; break;
case BFD_RELOC_64_PCREL: alpha_type = ALPHA_R_SREL64; break;
case BFD_RELOC_ALPHA_LINKAGE: alpha_type = ALPHA_R_LINKAGE; break;
case BFD_RELOC_ALPHA_CODEADDR: alpha_type = ALPHA_R_CODEADDR; break;
default:
(*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code);
return (const struct reloc_howto_struct *) NULL;
}
#if VMS_DEBUG
vms_debug (2, "reloc is %s\n", alpha_howto_table[alpha_type].name);
#endif
return &alpha_howto_table[alpha_type];
}
/*-- Part 4.7, writing an object file ---------------------------------------*/
/* Set the architecture and machine type in BFD abfd to arch and mach.
Find the correct pointer to a structure and insert it into the arch_info
pointer. */
static boolean
vms_set_arch_mach (abfd, arch, mach)
bfd *abfd;
enum bfd_architecture arch;
unsigned long mach;
{
#if VMS_DEBUG
vms_debug (1, "vms_set_arch_mach(%p, %d, %ld)\n", abfd, arch, mach);
#endif
abfd->arch_info = bfd_scan_arch("alpha");
return true;
}
/* Sets the contents of the section section in BFD abfd to the data starting
in memory at data. The data is written to the output section starting at
offset offset for count bytes.
Normally true is returned, else false. Possible error returns are:
o bfd_error_no_contents - The output section does not have the
SEC_HAS_CONTENTS attribute, so nothing can be written to it.
o and some more too */
static boolean
vms_set_section_contents (abfd, section, location, offset, count)
bfd *abfd;
asection *section;
PTR location;
file_ptr offset;
bfd_size_type count;
{
#if VMS_DEBUG
vms_debug (1, "vms_set_section_contents(%p, sec %s, loc %p, off %ld, count %d)\n",
abfd, section->name, location, (long int)offset, (int)count);
vms_debug (2, "secraw %d, seccooked %d\n", (int)section->_raw_size, (int)section->_cooked_size);
#endif
return _bfd_save_vms_section(abfd, section, location, offset, count);
}
/*-- Part 4.8, linker -------------------------------------------------------*/
/* Get the size of the section headers. */
static int
vms_sizeof_headers (abfd, reloc)
bfd *abfd;
boolean reloc;
{
#if VMS_DEBUG
vms_debug (1, "vms_sizeof_headers(%p, %s)\n", abfd, (reloc)?"True":"False");
#endif
return 0;
}
/* Provides default handling of relocation effort for back ends
which can't be bothered to do it efficiently. */
static bfd_byte *
vms_bfd_get_relocated_section_contents (abfd, link_info, link_order, data,
relocateable, symbols)
bfd *abfd;
struct bfd_link_info *link_info;
struct bfd_link_order *link_order;
bfd_byte *data;
boolean relocateable;
asymbol **symbols;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_get_relocated_section_contents(%p, %p, %p, %p, %s, %p)\n",
abfd, link_info, link_order, data, (relocateable)?"True":"False", symbols);
#endif
return 0;
}
/* ??? */
static boolean
vms_bfd_relax_section (abfd, section, link_info, again)
bfd *abfd;
asection *section;
struct bfd_link_info *link_info;
boolean *again;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_relax_section(%p, %s, %p, <ret>)\n",
abfd, section->name, link_info);
#endif
return true;
}
static boolean
vms_bfd_gc_sections (abfd, link_info)
bfd *abfd;
struct bfd_link_info *link_info;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_gc_sections(%p, %p)\n", abfd, link_info);
#endif
return true;
}
/* Create a hash table for the linker. Different backends store
different information in this table. */
static struct bfd_link_hash_table *
vms_bfd_link_hash_table_create (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_link_hash_table_create(%p)\n", abfd);
#endif
return 0;
}
/* Add symbols from this object file into the hash table. */
static boolean
vms_bfd_link_add_symbols (abfd, link_info)
bfd *abfd;
struct bfd_link_info *link_info;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_link_add_symbols(%p, %p)\n", abfd, link_info);
#endif
return false;
}
/* Do a link based on the link_order structures attached to each
section of the BFD. */
static boolean
vms_bfd_final_link (abfd, link_info)
bfd *abfd;
struct bfd_link_info *link_info;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_final_link(%p, %p)\n", abfd, link_info);
#endif
return true;
}
/* Should this section be split up into smaller pieces during linking. */
static boolean
vms_bfd_link_split_section (abfd, section)
bfd *abfd;
asection *section;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_link_split_section(%p, %s)\n", abfd, section->name);
#endif
return false;
}
/*-- Part 4.9, dynamic symbols and relocations ------------------------------*/
/* Get the amount of memory required to hold the dynamic symbols. */
static long
vms_get_dynamic_symtab_upper_bound (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_dynamic_symtab_upper_bound(%p)\n", abfd);
#endif
return 0;
}
static boolean
vms_bfd_print_private_bfd_data (abfd, file)
bfd *abfd;
void *file;
{
#if VMS_DEBUG
vms_debug (1, "vms_bfd_print_private_bfd_data(%p)\n", abfd);
#endif
return 0;
}
/* Read in the dynamic symbols. */
static long
vms_canonicalize_dynamic_symtab (abfd, symbols)
bfd *abfd;
asymbol **symbols;
{
#if VMS_DEBUG
vms_debug (1, "vms_canonicalize_dynamic_symtab(%p, <ret>)\n", abfd);
#endif
return 0L;
}
/* Get the amount of memory required to hold the dynamic relocs. */
static long
vms_get_dynamic_reloc_upper_bound (abfd)
bfd *abfd;
{
#if VMS_DEBUG
vms_debug (1, "vms_get_dynamic_reloc_upper_bound(%p)\n", abfd);
#endif
return 0L;
}
/* Read in the dynamic relocs. */
static long
vms_canonicalize_dynamic_reloc (abfd, arel, symbols)
bfd *abfd;
arelent **arel;
asymbol **symbols;
{
#if VMS_DEBUG
vms_debug (1, "vms_canonicalize_dynamic_reloc(%p)\n", abfd);
#endif
return 0L;
}
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