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author | Richard Henderson <rth@redhat.com> | 1999-05-03 07:29:06 +0000 |
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committer | Richard Henderson <rth@redhat.com> | 1999-05-03 07:29:06 +0000 |
commit | 860acaebec6b57ce27e244cc02a58e6651a4b6c3 (patch) | |
tree | eff5420756a4bd56b40b74c2b828b261f327610b /bfd/vms.c | |
parent | f9c53ad2d7cb541cbe821d645b90437ac063e5db (diff) | |
download | gdb-860acaebec6b57ce27e244cc02a58e6651a4b6c3.tar.gz |
Initial revision
Diffstat (limited to 'bfd/vms.c')
-rw-r--r-- | bfd/vms.c | 1947 |
1 files changed, 1947 insertions, 0 deletions
diff --git a/bfd/vms.c b/bfd/vms.c new file mode 100644 index 00000000000..a5fc13ad942 --- /dev/null +++ b/bfd/vms.c @@ -0,0 +1,1947 @@ +/* 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; +} |