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- /* evax-alpha.c -- BFD back-end for ALPHA EVAX (openVMS/AXP) files.
- Copyright 1996 Free Software Foundation, Inc.
- Written by Klaus KΣmpf (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 "bfd.h"
- #include "sysdep.h"
- #include "bfdlink.h"
- #include "libbfd.h"
-
- #include "evax.h"
-
- static boolean evax_initialize PARAMS ((bfd *));
- static boolean fill_section_ptr PARAMS ((struct bfd_hash_entry *, PTR));
- static boolean evax_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 *evax_object_p PARAMS ((bfd *abfd));
- static const struct bfd_target *evax_archive_p PARAMS ((bfd *abfd));
- static boolean evax_mkobject PARAMS ((bfd *abfd));
- static boolean evax_write_object_contents PARAMS ((bfd *abfd));
- static boolean evax_close_and_cleanup PARAMS ((bfd *abfd));
- static boolean evax_bfd_free_cached_info PARAMS ((bfd *abfd));
- static boolean evax_new_section_hook PARAMS ((bfd *abfd, asection *section));
- static boolean evax_get_section_contents
- PARAMS ((bfd *abfd, asection *section, PTR x1, file_ptr x2,
- bfd_size_type x3));
- static boolean evax_get_section_contents_in_window
- PARAMS ((bfd *abfd, asection *section, bfd_window *w, file_ptr offset,
- bfd_size_type count));
- static boolean evax_bfd_copy_private_bfd_data PARAMS ((bfd *src, bfd *dest));
- static boolean evax_bfd_copy_private_section_data
- PARAMS ((bfd *srcbfd, asection *srcsec, bfd *dstbfd, asection *dstsec));
- static boolean evax_bfd_copy_private_symbol_data
- PARAMS ((bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym));
- static boolean evax_bfd_print_private_bfd_data
- PARAMS ((bfd *abfd, void *file));
- static char *evax_core_file_failing_command PARAMS ((bfd *abfd));
- static int evax_core_file_failing_signal PARAMS ((bfd *abfd));
- static boolean evax_core_file_matches_executable_p
- PARAMS ((bfd *abfd, bfd *bbfd));
- static boolean evax_slurp_armap PARAMS ((bfd *abfd));
- static boolean evax_slurp_extended_name_table PARAMS ((bfd *abfd));
- static boolean evax_construct_extended_name_table
- PARAMS ((bfd *abfd, char **tabloc, bfd_size_type *tablen,
- const char **name));
- static void evax_truncate_arname
- PARAMS ((bfd *abfd, CONST char *pathname, char *arhdr));
- static boolean evax_write_armap
- PARAMS ((bfd *arch, unsigned int elength, struct orl *map,
- unsigned int orl_count, int stridx));
- static PTR evax_read_ar_hdr PARAMS ((bfd *abfd));
- static bfd *evax_get_elt_at_index PARAMS ((bfd *abfd, symindex index));
- static bfd *evax_openr_next_archived_file PARAMS ((bfd *arch, bfd *prev));
- static boolean evax_update_armap_timestamp PARAMS ((bfd *abfd));
- static int evax_generic_stat_arch_elt PARAMS ((bfd *abfd, struct stat *stat));
- static long evax_get_symtab_upper_bound PARAMS ((bfd *abfd));
- static long evax_get_symtab PARAMS ((bfd *abfd, asymbol **symbols));
- static void evax_print_symbol
- PARAMS ((bfd *abfd, PTR file, asymbol *symbol, bfd_print_symbol_type how));
- static void evax_get_symbol_info
- PARAMS ((bfd *abfd, asymbol *symbol, symbol_info *ret));
- static boolean evax_bfd_is_local_label PARAMS ((bfd *abfd, asymbol *symbol));
- static alent *evax_get_lineno PARAMS ((bfd *abfd, asymbol *symbol));
- static boolean evax_find_nearest_line
- PARAMS ((bfd *abfd, asection *section, asymbol **symbols, bfd_vma offset,
- const char **file, const char **func, unsigned int *line));
- static asymbol *evax_bfd_make_debug_symbol
- PARAMS ((bfd *abfd, void *ptr, unsigned long size));
- static long evax_read_minisymbols
- PARAMS ((bfd *abfd, boolean dynamic, PTR *minisymsp, unsigned int *sizep));
- static asymbol *evax_minisymbol_to_symbol
- PARAMS ((bfd *abfd, boolean dynamic, const PTR minisym, asymbol *sym));
- static long evax_get_reloc_upper_bound PARAMS ((bfd *abfd, asection *sect));
- static long evax_canonicalize_reloc
- PARAMS ((bfd *abfd, asection *srcsec, arelent **location,
- asymbol **symbols));
- static const struct reloc_howto_struct *evax_bfd_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
- static boolean evax_set_arch_mach
- PARAMS ((bfd *abfd, enum bfd_architecture arch, unsigned long mach));
- static boolean evax_set_section_contents
- PARAMS ((bfd *abfd, asection *section, PTR location, file_ptr offset,
- bfd_size_type count));
- static int evax_sizeof_headers PARAMS ((bfd *abfd, boolean reloc));
- static bfd_byte *evax_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 evax_bfd_relax_section
- PARAMS ((bfd *abfd, asection *section, struct bfd_link_info *link_info,
- boolean *again));
- static struct bfd_link_hash_table *evax_bfd_link_hash_table_create
- PARAMS ((bfd *abfd));
- static boolean evax_bfd_link_add_symbols
- PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
- static boolean evax_bfd_final_link
- PARAMS ((bfd *abfd, struct bfd_link_info *link_info));
- static boolean evax_bfd_link_split_section
- PARAMS ((bfd *abfd, asection *section));
- static long evax_get_dynamic_symtab_upper_bound PARAMS ((bfd *abfd));
- static long evax_canonicalize_dynamic_symtab
- PARAMS ((bfd *abfd, asymbol **symbols));
- static long evax_get_dynamic_reloc_upper_bound PARAMS ((bfd *abfd));
- static long evax_canonicalize_dynamic_reloc
- PARAMS ((bfd *abfd, arelent **arel, asymbol **symbols));
- static boolean evax_bfd_merge_private_bfd_data PARAMS ((bfd *ibfd, bfd *obfd));
- static boolean evax_bfd_set_private_flags PARAMS ((bfd *abfd, flagword flags));
-
- #define evax_make_empty_symbol _bfd_evax_make_empty_symbol
-
- /*===========================================================================*/
-
- const bfd_target evax_alpha_vec =
- {
-
- "evax-alpha", /* name */
- bfd_target_evax_flavour,
- false, /* data byte order is little */
- false, /* header byte order is little */
-
- (HAS_RELOC | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */
- 0, /* symbol_leading_char */
- ' ', /* ar_pad_char */
- 15, /* ar_max_namelen */
- bfd_getl64, /* bfd_getx64 */
- bfd_getl_signed_64, /* bfd_getx_signed_64 */
- bfd_putl64, /* bfd_putx64 */
- bfd_getl32, /* bfd_getx32 */
- bfd_getl_signed_32, /* bfd_getx_signed_32 */
- bfd_putl32, /* bfd_putx32 */
- bfd_getl16, /* bfd_getx16 */
- bfd_getl_signed_16, /* bfd_getx_signed_16 */
- bfd_putl16, /* bfd_putx16 */
- bfd_getl64, /* bfd_h_getx64 */
- bfd_getl_signed_64, /* bfd_h_getx_signed_64 */
- bfd_putl64, /* bfd_h_putx64 */
- bfd_getl32, /* bfd_h_getx32 */
- bfd_getl_signed_32, /* bfd_h_getx_signed_32 */
- bfd_putl32, /* bfd_h_putx32 */
- bfd_getl16, /* bfd_h_getx16 */
- bfd_getl_signed_16, /* bfd_h_getx_signed_16 */
- bfd_putl16, /* bfd_h_putx16 */
-
- {_bfd_dummy_target, evax_object_p, /* bfd_check_format */
- evax_archive_p, _bfd_dummy_target},
- {bfd_false, evax_mkobject, /* bfd_set_format */
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, evax_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- BFD_JUMP_TABLE_GENERIC (evax),
- BFD_JUMP_TABLE_COPY (evax),
- BFD_JUMP_TABLE_CORE (evax),
- BFD_JUMP_TABLE_ARCHIVE (evax),
- BFD_JUMP_TABLE_SYMBOLS (evax),
- BFD_JUMP_TABLE_RELOCS (evax),
- BFD_JUMP_TABLE_WRITE (evax),
- BFD_JUMP_TABLE_LINK (evax),
- BFD_JUMP_TABLE_DYNAMIC (evax),
-
- (PTR) 0
- };
-
-
- /*===========================================================================*/
-
- /* Initialize private data */
-
- static boolean
- evax_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 evax_private_data_struct*)
- bfd_malloc (sizeof (struct evax_private_data_struct)));
- if (abfd->tdata.any == 0)
- return false;
- PRIV(evax_buf) = 0;
- PRIV(buf_size) = 0;
- PRIV(rec_length) = 0;
- PRIV(file_format) = FF_UNKNOWN;
- PRIV(filename) = NULL;
- PRIV(fixup_done) = false;
- PRIV(sections) = NULL;
-
- PRIV(stack) = ((struct stack_struct *)
- bfd_malloc (sizeof (struct stack_struct) * STACKSIZE));
- if (PRIV(stack) == 0)
- {
- evax_init_no_mem1:
- free (abfd->tdata.any);
- abfd->tdata.any = 0;
- return false;
- }
- PRIV(stackptr) = 0;
-
- PRIV(evax_symbol_table) = ((struct bfd_hash_table *)
- bfd_malloc (sizeof (struct bfd_hash_table)));
- if (PRIV(evax_symbol_table) == 0)
- {
- evax_init_no_mem2:
- free (PRIV(stack));
- PRIV(stack) = 0;
- goto evax_init_no_mem1;
- }
-
- if (!bfd_hash_table_init (PRIV(evax_symbol_table), _bfd_evax_hash_newfunc))
- return false;
-
- PRIV(location_stack) = ((struct location_struct *)
- bfd_malloc (sizeof (struct location_struct)
- * LOCATION_SAVE_SIZE));
- if (PRIV(location_stack) == 0)
- {
- evax_init_no_mem3:
- free (PRIV(evax_symbol_table));
- PRIV(evax_symbol_table) = 0;
- goto evax_init_no_mem2;
- }
-
- for (i=0; i<EVAX_SECTION_COUNT; i++)
- {
- PRIV(evax_section_table)[i] = NULL;
- PRIV(evax_reloc_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 evax_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 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 evax_fixup_sections */
-
- static boolean
- fill_section_ptr (entry, sections)
- struct bfd_hash_entry *entry;
- PTR sections;
- {
- asection *sec;
- asymbol *sym;
-
- sym = ((evax_symbol_entry *)entry)->symbol;
- sec = sym->section;
-
- if (!bfd_is_und_section (sec))
- {
- sec = ((evax_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
- evax_fixup_sections (abfd)
- bfd *abfd;
- {
- asection *s;
-
- if (PRIV(fixup_done))
- return true;
-
- PRIV(sections) = ((asection **)
- bfd_malloc (abfd->section_count * sizeof (asection *)));
- if (PRIV(sections) == 0)
- return false;
- PRIV(egsd_sec_count) = abfd->section_count;
- s = abfd->sections;
- while (s)
- {
- PRIV(sections)[s->index] = s;
- s = s->next;
- }
-
- /*
- * traverse symbol table and fill in all section pointers
- */
-
- bfd_hash_traverse (PRIV(evax_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 *
- evax_object_p (abfd)
- bfd *abfd;
- {
- int err = 0;
- int prev_type;
- #if EVAX_DEBUG
- evax_debug (1, "evax_object_p(%p)\n", abfd);
- #endif
- if (bfd_seek (abfd, 0L, SEEK_SET))
- {
- bfd_set_error (bfd_error_file_truncated);
- return 0;
- }
-
- prev_type = -1;
-
- do
- {
- #if EVAX_DEBUG
- evax_debug (3, "reading at %08lx\n", bfd_tell(abfd));
- #endif
- if (_bfd_evax_next_record (abfd) < 0)
- {
- #if EVAX_DEBUG
- evax_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 (evax_fixup_sections (abfd) == false)
- {
- #if EVAX_DEBUG
- evax_debug (2, "evax_fixup_sections failed\n");
- #endif
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- }
-
- prev_type = PRIV(rec_type);
-
- switch (PRIV(rec_type))
- {
- case EOBJ_S_C_EMH:
- err = _bfd_evax_slurp_emh (abfd);
- break;
- case EOBJ_S_C_EEOM:
- err = _bfd_evax_slurp_eeom (abfd);
- break;
- case EOBJ_S_C_EGSD:
- err = _bfd_evax_slurp_egsd (abfd);
- break;
- case EOBJ_S_C_ETIR:
- err = _bfd_evax_slurp_etir (abfd);
- break;
- case EOBJ_S_C_EDBG:
- err = _bfd_evax_slurp_edbg (abfd);
- break;
- case EOBJ_S_C_ETBT:
- err = _bfd_evax_slurp_etbt (abfd);
- break;
- default:
- err = -1;
- }
- if (err != 0)
- {
- #if EVAX_DEBUG
- evax_debug (2, "slurp type %d failed with %d\n", PRIV(rec_type), err);
- #endif
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- }
- while (prev_type != EOBJ_S_C_EEOM);
-
- /* set arch_info to alpha */
-
- {
- const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
- if (arch == 0)
- {
- #if EVAX_DEBUG
- evax_debug (2, "arch not found\n");
- #endif
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- abfd->arch_info = arch;
- }
-
- return &evax_alpha_vec;
- }
-
-
- /* 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 *
- evax_archive_p (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_archive_p(%p)\n", abfd);
- #endif
-
- if (!evax_initialize (abfd))
- return 0;
-
- return 0;
- }
-
-
- /* Set the format of a file being written. */
-
- static boolean
- evax_mkobject (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_mkobject(%p)\n", abfd);
- #endif
-
- if (!evax_initialize (abfd))
- return 0;
-
- {
- const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
- 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
- evax_write_object_contents (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_write_object_contents(%p)\n", abfd);
- #endif
-
- if (abfd->section_count > 0) /* we have sections */
- {
- if (_bfd_evax_write_emh (abfd) != 0)
- return false;
- if (_bfd_evax_write_egsd (abfd) != 0)
- return false;
- if (_bfd_evax_write_etir (abfd) != 0)
- return false;
- if (_bfd_evax_write_etbt (abfd) != 0)
- return false;
- if (_bfd_evax_write_eeom (abfd) != 0)
- return false;
- }
- return true;
- }
-
- /*-- 4.1, generic -----------------------------------------------------------*/
-
- /* Called when the BFD is being closed to do any necessary cleanup. */
-
- static boolean
- evax_close_and_cleanup (abfd)
- bfd *abfd;
- {
- asection *sec;
- evax_section *es, *es1;
- evax_reloc *er, *er1;
- int i;
-
- #if EVAX_DEBUG
- evax_debug (1, "evax_close_and_cleanup(%p)\n", abfd);
- #endif
- if (abfd == 0)
- return true;
-
- if (PRIV(evax_buf) != NULL)
- {
- free (PRIV(evax_buf));
- PRIV(evax_buf) = NULL;
- }
- PRIV(buf_size) = 0;
-
- if (PRIV(filename) != NULL)
- {
- free (PRIV(filename));
- PRIV(filename) = NULL;
- }
-
- 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(evax_symbol_table))
- {
- bfd_hash_table_free (PRIV(evax_symbol_table));
- PRIV(evax_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 < EVAX_SECTION_COUNT; i++)
- {
- es = PRIV(evax_section_table)[i];
- while (es != NULL)
- {
- es1 = es->next;
- free (es);
- es = es1;
- }
- PRIV(evax_section_table)[i] = NULL;
-
- er = PRIV(evax_reloc_table)[i];
- while (er != NULL)
- {
- er1 = er->next;
- free (er);
- er = er1;
- }
- PRIV(evax_reloc_table)[i] = NULL;
- }
-
- free (abfd->tdata.any);
- abfd->tdata.any = NULL;
-
- return true;
- }
-
-
- /* Ask the BFD to free all cached information. */
- static boolean
- evax_bfd_free_cached_info (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_bfd_free_cached_info(%p)\n", abfd);
- #endif
- return true;
- }
-
-
- /* Called when a new section is created. */
-
- static boolean
- evax_new_section_hook (abfd, section)
- bfd *abfd;
- asection *section;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_new_section_hook(%p, %s)\n", abfd, section->name);
- #endif
- bfd_set_section_alignment(abfd, section, 4);
- 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
- evax_get_section_contents (abfd, section, buf, offset, buf_size)
- bfd *abfd;
- asection *section;
- PTR buf;
- file_ptr offset;
- bfd_size_type buf_size;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_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 EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_copy_private_bfd_data (src, dest)
- bfd *src;
- bfd *dest;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_merge_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
- {
- #if EVAX_DEBUG
- evax_debug (1,"evax_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
- evax_bfd_set_private_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
- {
- #if EVAX_DEBUG
- evax_debug (1,"evax_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
- evax_bfd_copy_private_section_data (srcbfd, srcsec, dstbfd, dstsec)
- bfd *srcbfd;
- asection *srcsec;
- bfd *dstbfd;
- asection *dstsec;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_copy_private_symbol_data (ibfd, isym, obfd, osym)
- bfd *ibfd;
- asymbol *isym;
- bfd *obfd;
- asymbol *osym;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_core_file_failing_command (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_core_file_failing_signal (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_core_file_matches_executable_p (abfd, bbfd)
- bfd *abfd;
- bfd *bbfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_slurp_armap (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_slurp_armap(%p)\n", abfd);
- #endif
- return false;
- }
-
-
- /* ??? do something with an extended name table.
- Return false on error, true otherwise. */
-
- static boolean
- evax_slurp_extended_name_table (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_construct_extended_name_table (abfd, tabloc, tablen, name)
- bfd *abfd;
- char **tabloc;
- bfd_size_type *tablen;
- const char **name;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_construct_extended_name_table(%p)\n", abfd);
- #endif
- return false;
- }
-
-
- /* Truncate the name of an archive to match system-dependent restrictions */
-
- static void
- evax_truncate_arname (abfd, pathname, arhdr)
- bfd *abfd;
- CONST char *pathname;
- char *arhdr;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_truncate_arname(%p, %s, %s)\n", abfd, pathname, arhdr);
- #endif
- return;
- }
-
-
- /* ??? write archive map */
-
- static boolean
- evax_write_armap (arch, elength, map, orl_count, stridx)
- bfd *arch;
- unsigned int elength;
- struct orl *map;
- unsigned int orl_count;
- int stridx;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_write_armap(%p, %d, %p, %d %d)\n",
- arch, elength, map, orl_count, stridx);
- #endif
- return true;
- }
-
- /* Read archive header ??? */
-
- static PTR
- evax_read_ar_hdr (abfd)
- bfd * abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_openr_next_archived_file (arch, prev)
- bfd *arch;
- bfd *prev;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_get_elt_at_index (abfd, index)
- bfd *abfd;
- symindex index;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_generic_stat_arch_elt (abfd, stat)
- bfd *abfd;
- struct stat *stat;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_update_armap_timestamp (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_get_symtab_upper_bound (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_get_symtab_upper_bound(%p), %d symbols\n", abfd, PRIV(egsd_sym_count));
- #endif
- return (PRIV(egsd_sym_count)+1) * sizeof(asymbol *);
- }
-
-
- /* Copy symbols from hash table to symbol vector
-
- called from bfd_hash_traverse in evax_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)++] = ((evax_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
- evax_get_symtab (abfd, symbols)
- bfd *abfd;
- asymbol **symbols;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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(evax_symbol_table), copy_symbols, (PTR)abfd);
-
- symbols[bfd_get_symcount(abfd)] = NULL;
-
- return bfd_get_symcount(abfd);
- }
-
-
- /* 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_evax_make_empty_symbol (abfd)
- bfd *abfd;
- {
- asymbol *symbol = (asymbol *)bfd_zalloc(abfd, sizeof(asymbol));
-
- #if EVAX_DEBUG
- evax_debug (1, "_bfd_evax_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
- evax_print_symbol (abfd, file, symbol, how)
- bfd *abfd;
- PTR file;
- asymbol *symbol;
- bfd_print_symbol_type how;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_get_symbol_info (abfd, symbol, ret)
- bfd *abfd;
- asymbol *symbol;
- symbol_info *ret;
- {
- asection *sec;
-
- #if EVAX_DEBUG
- evax_debug (1, "evax_get_symbol_info(%p, %p, <ret>)\n", abfd, symbol);
- #endif
-
- sec = symbol->section;
-
- 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_abs_section (sec))
- ret->type = 'A';
- 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
- evax_bfd_is_local_label (abfd, symbol)
- bfd *abfd;
- asymbol *symbol;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_bfd_is_local_label(%p, %p)\n", abfd, symbol);
- #endif
- return false;
- }
-
-
- /* Get source line number for symbol */
-
- static alent *
- evax_get_lineno (abfd, symbol)
- bfd *abfd;
- asymbol *symbol;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_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 EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_bfd_make_debug_symbol (abfd, ptr, size)
- bfd *abfd;
- void *ptr;
- unsigned long size;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_read_minisymbols (abfd, dynamic, minisymsp, sizep)
- bfd *abfd;
- boolean dynamic;
- PTR *minisymsp;
- unsigned int *sizep;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_minisymbol_to_symbol (abfd, dynamic, minisym, sym)
- bfd *abfd;
- boolean dynamic;
- const PTR minisym;
- asymbol *sym;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_get_reloc_upper_bound (abfd, section)
- bfd *abfd;
- asection *section;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_canonicalize_reloc (abfd, section, location, symbols)
- bfd *abfd;
- asection *section;
- arelent **location;
- asymbol **symbols;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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;
- {
- evax_reloc *er;
-
- #if EVAX_DEBUG
- evax_debug (1, "reloc_nil(abfd %p, output_bfd %p)\n", abfd, output_bfd);
- evax_debug (2, "In section %s, symbol %s\n",
- sec->name, sym->name);
- evax_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);
- evax_debug (2, "data at %p\n", data);
- /* _bfd_hexdump (2, data, bfd_get_reloc_size(reloc->howto),0); */
- #endif
-
- er = (evax_reloc *)malloc (sizeof(evax_reloc));
- if (er == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return bfd_reloc_notsupported; /* FIXME */
- }
- er->section = sec;
- er->reloc = reloc;
- er->next = NULL;
- if (PRIV(evax_reloc_table)[sec->index] == NULL)
- {
- PRIV(evax_reloc_table)[sec->index] = er;
- }
- else
- {
- er->next = PRIV(evax_reloc_table)[sec->index];
- }
- 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 */
-
- /* Switch table, 32bit relocation. */
- HOWTO (ALPHA_R_SWREL32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- reloc_nil, /* special_function */
- "SWREL32", /* name */
- false, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* Switch table, 64bit relocation. */
- HOWTO (ALPHA_R_SWREL64, /* 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 */
- "SWREL64", /* name */
- false, /* partial_inplace */
- MINUS_ONE, /* src_mask */
- MINUS_ONE, /* 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 */
-
- };
-
- /* 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 *
- evax_bfd_reloc_type_lookup (abfd, code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
- {
- int alpha_type;
-
- #if EVAX_DEBUG
- evax_debug (1, "evax_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_SWREL32: alpha_type = ALPHA_R_SWREL32; break;
- case BFD_RELOC_SWREL64: alpha_type = ALPHA_R_SWREL64; break;
- #if 0
- case ???: alpha_type = ALPHA_R_OP_PUSH; break;
- case ???: alpha_type = ALPHA_R_OP_STORE; break;
- case ???: alpha_type = ALPHA_R_OP_PSUB; break;
- case ???: alpha_type = ALPHA_R_OP_PRSHIFT;break;
- case ???: alpha_type = ALPHA_R_GPVALUE; break;
- #endif
- default:
- (*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code);
- return (const struct reloc_howto_struct *) NULL;
- }
- #if EVAX_DEBUG
- evax_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
- evax_set_arch_mach (abfd, arch, mach)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long mach;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- asection *section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_set_section_contents(%p, sec %s, loc %p, off %ld, count %d)\n",
- abfd, section->name, location, (long int)offset, (int)count);
- #endif
- return _bfd_save_evax_section(abfd, section, location, offset, count);
- }
-
-
- /*-- Part 4.8, linker -------------------------------------------------------*/
-
- /* Get the size of the section headers. */
-
- static int
- evax_sizeof_headers (abfd, reloc)
- bfd *abfd;
- boolean reloc;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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 *
- evax_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 EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_relax_section (abfd, section, link_info, again)
- bfd *abfd;
- asection *section;
- struct bfd_link_info *link_info;
- boolean *again;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_bfd_relax_section(%p, %s, %p, <ret>)\n",
- abfd, section->name, 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 *
- evax_bfd_link_hash_table_create (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_bfd_link_hash_table_create(%p)\n", abfd);
- #endif
- return 0;
- }
-
-
- /* Add symbols from this object file into the hash table. */
-
- static boolean
- evax_bfd_link_add_symbols (abfd, link_info)
- bfd *abfd;
- struct bfd_link_info *link_info;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_final_link (abfd, link_info)
- bfd *abfd;
- struct bfd_link_info *link_info;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_bfd_link_split_section (abfd, section)
- bfd *abfd;
- asection *section;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_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
- evax_get_dynamic_symtab_upper_bound (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_get_dynamic_symtab_upper_bound(%p)\n", abfd);
- #endif
- return 0;
- }
-
- static boolean
- evax_bfd_print_private_bfd_data (abfd, file)
- bfd *abfd;
- void *file;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_bfd_print_private_bfd_data(%p)\n", abfd);
- #endif
- return 0;
- }
-
-
- /* Read in the dynamic symbols. */
-
- static long
- evax_canonicalize_dynamic_symtab (abfd, symbols)
- bfd *abfd;
- asymbol **symbols;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_canonicalize_dynamic_symtab(%p, <ret>)\n", abfd);
- #endif
- return 0L;
- }
-
-
- /* Get the amount of memory required to hold the dynamic relocs. */
-
- static long
- evax_get_dynamic_reloc_upper_bound (abfd)
- bfd *abfd;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_get_dynamic_reloc_upper_bound(%p)\n", abfd);
- #endif
- return 0L;
- }
-
-
- /* Read in the dynamic relocs. */
-
- static long
- evax_canonicalize_dynamic_reloc (abfd, arel, symbols)
- bfd *abfd;
- arelent **arel;
- asymbol **symbols;
- {
- #if EVAX_DEBUG
- evax_debug (1, "evax_canonicalize_dynamic_reloc(%p)\n", abfd);
- #endif
- return 0L;
- }
-