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578 |
markom |
/* COFF specific linker code.
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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Written by Ian Lance Taylor, Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* This file contains the COFF backend linker code. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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static boolean coff_link_add_object_symbols
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PARAMS ((bfd *, struct bfd_link_info *));
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static boolean coff_link_check_archive_element
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PARAMS ((bfd *, struct bfd_link_info *, boolean *));
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static boolean coff_link_check_ar_symbols
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PARAMS ((bfd *, struct bfd_link_info *, boolean *));
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static boolean coff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *));
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static char *dores_com PARAMS ((char *, bfd *, int));
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static char *get_name PARAMS ((char *, char **));
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static int process_embedded_commands
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PARAMS ((bfd *, struct bfd_link_info *, bfd *));
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static void mark_relocs PARAMS ((struct coff_final_link_info *, bfd *));
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/* Return true if SYM is a weak, external symbol. */
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#define IS_WEAK_EXTERNAL(abfd, sym) \
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((sym).n_sclass == C_WEAKEXT \
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|| (obj_pe (abfd) && (sym).n_sclass == C_NT_WEAK))
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/* Return true if SYM is an external symbol. */
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#define IS_EXTERNAL(abfd, sym) \
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((sym).n_sclass == C_EXT || IS_WEAK_EXTERNAL (abfd, sym))
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/* Define macros so that the ISFCN, et. al., macros work correctly.
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These macros are defined in include/coff/internal.h in terms of
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N_TMASK, etc. These definitions require a user to define local
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variables with the appropriate names, and with values from the
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coff_data (abfd) structure. */
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#define N_TMASK n_tmask
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#define N_BTSHFT n_btshft
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#define N_BTMASK n_btmask
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/* Create an entry in a COFF linker hash table. */
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struct bfd_hash_entry *
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_bfd_coff_link_hash_newfunc (entry, table, string)
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struct bfd_hash_entry *entry;
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struct bfd_hash_table *table;
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const char *string;
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{
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struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry;
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/* Allocate the structure if it has not already been allocated by a
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subclass. */
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if (ret == (struct coff_link_hash_entry *) NULL)
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ret = ((struct coff_link_hash_entry *)
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bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry)));
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if (ret == (struct coff_link_hash_entry *) NULL)
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return (struct bfd_hash_entry *) ret;
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/* Call the allocation method of the superclass. */
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ret = ((struct coff_link_hash_entry *)
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_bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
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table, string));
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if (ret != (struct coff_link_hash_entry *) NULL)
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{
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/* Set local fields. */
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ret->indx = -1;
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ret->type = T_NULL;
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ret->class = C_NULL;
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ret->numaux = 0;
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ret->auxbfd = NULL;
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ret->aux = NULL;
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}
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return (struct bfd_hash_entry *) ret;
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}
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/* Initialize a COFF linker hash table. */
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boolean
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_bfd_coff_link_hash_table_init (table, abfd, newfunc)
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struct coff_link_hash_table *table;
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bfd *abfd;
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struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
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struct bfd_hash_table *,
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const char *));
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{
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table->stab_info = NULL;
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return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
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}
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/* Create a COFF linker hash table. */
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struct bfd_link_hash_table *
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_bfd_coff_link_hash_table_create (abfd)
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bfd *abfd;
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{
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struct coff_link_hash_table *ret;
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ret = ((struct coff_link_hash_table *)
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bfd_alloc (abfd, sizeof (struct coff_link_hash_table)));
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if (ret == NULL)
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return NULL;
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if (! _bfd_coff_link_hash_table_init (ret, abfd,
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_bfd_coff_link_hash_newfunc))
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{
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bfd_release (abfd, ret);
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return (struct bfd_link_hash_table *) NULL;
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}
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return &ret->root;
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}
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/* Create an entry in a COFF debug merge hash table. */
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struct bfd_hash_entry *
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_bfd_coff_debug_merge_hash_newfunc (entry, table, string)
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struct bfd_hash_entry *entry;
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struct bfd_hash_table *table;
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const char *string;
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{
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struct coff_debug_merge_hash_entry *ret =
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(struct coff_debug_merge_hash_entry *) entry;
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/* Allocate the structure if it has not already been allocated by a
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subclass. */
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if (ret == (struct coff_debug_merge_hash_entry *) NULL)
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ret = ((struct coff_debug_merge_hash_entry *)
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bfd_hash_allocate (table,
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sizeof (struct coff_debug_merge_hash_entry)));
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if (ret == (struct coff_debug_merge_hash_entry *) NULL)
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return (struct bfd_hash_entry *) ret;
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/* Call the allocation method of the superclass. */
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ret = ((struct coff_debug_merge_hash_entry *)
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bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
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if (ret != (struct coff_debug_merge_hash_entry *) NULL)
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{
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/* Set local fields. */
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ret->types = NULL;
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}
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return (struct bfd_hash_entry *) ret;
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}
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/* Given a COFF BFD, add symbols to the global hash table as
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appropriate. */
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boolean
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_bfd_coff_link_add_symbols (abfd, info)
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bfd *abfd;
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struct bfd_link_info *info;
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{
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switch (bfd_get_format (abfd))
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{
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case bfd_object:
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return coff_link_add_object_symbols (abfd, info);
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case bfd_archive:
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return (_bfd_generic_link_add_archive_symbols
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(abfd, info, coff_link_check_archive_element));
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default:
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bfd_set_error (bfd_error_wrong_format);
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return false;
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}
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}
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/* Add symbols from a COFF object file. */
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static boolean
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coff_link_add_object_symbols (abfd, info)
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bfd *abfd;
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struct bfd_link_info *info;
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{
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if (! _bfd_coff_get_external_symbols (abfd))
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return false;
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if (! coff_link_add_symbols (abfd, info))
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return false;
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if (! info->keep_memory)
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{
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if (! _bfd_coff_free_symbols (abfd))
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return false;
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}
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return true;
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}
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/* Check a single archive element to see if we need to include it in
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the link. *PNEEDED is set according to whether this element is
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needed in the link or not. This is called via
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_bfd_generic_link_add_archive_symbols. */
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static boolean
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coff_link_check_archive_element (abfd, info, pneeded)
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bfd *abfd;
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struct bfd_link_info *info;
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boolean *pneeded;
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{
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if (! _bfd_coff_get_external_symbols (abfd))
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return false;
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if (! coff_link_check_ar_symbols (abfd, info, pneeded))
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return false;
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if (*pneeded)
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{
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if (! coff_link_add_symbols (abfd, info))
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return false;
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}
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if (! info->keep_memory || ! *pneeded)
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{
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if (! _bfd_coff_free_symbols (abfd))
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return false;
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}
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return true;
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}
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/* Look through the symbols to see if this object file should be
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included in the link. */
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static boolean
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coff_link_check_ar_symbols (abfd, info, pneeded)
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bfd *abfd;
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struct bfd_link_info *info;
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boolean *pneeded;
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{
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bfd_size_type symesz;
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bfd_byte *esym;
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bfd_byte *esym_end;
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*pneeded = false;
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symesz = bfd_coff_symesz (abfd);
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esym = (bfd_byte *) obj_coff_external_syms (abfd);
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esym_end = esym + obj_raw_syment_count (abfd) * symesz;
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while (esym < esym_end)
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{
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struct internal_syment sym;
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enum coff_symbol_classification classification;
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bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
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classification = bfd_coff_classify_symbol (abfd, &sym);
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if (classification == COFF_SYMBOL_GLOBAL
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|| classification == COFF_SYMBOL_COMMON)
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{
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const char *name;
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char buf[SYMNMLEN + 1];
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struct bfd_link_hash_entry *h;
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/* This symbol is externally visible, and is defined by this
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object file. */
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name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
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if (name == NULL)
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return false;
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h = bfd_link_hash_lookup (info->hash, name, false, false, true);
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/* We are only interested in symbols that are currently
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undefined. If a symbol is currently known to be common,
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COFF linkers do not bring in an object file which defines
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| 283 |
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it. */
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if (h != (struct bfd_link_hash_entry *) NULL
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&& h->type == bfd_link_hash_undefined)
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{
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| 287 |
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if (! (*info->callbacks->add_archive_element) (info, abfd, name))
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| 288 |
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return false;
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| 289 |
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*pneeded = true;
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| 290 |
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return true;
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}
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| 292 |
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}
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| 293 |
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| 294 |
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esym += (sym.n_numaux + 1) * symesz;
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}
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| 296 |
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| 297 |
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/* We do not need this object file. */
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return true;
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| 299 |
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}
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| 300 |
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| 301 |
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/* Add all the symbols from an object file to the hash table. */
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| 302 |
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| 303 |
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static boolean
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| 304 |
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coff_link_add_symbols (abfd, info)
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| 305 |
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bfd *abfd;
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| 306 |
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struct bfd_link_info *info;
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| 307 |
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{
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| 308 |
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unsigned int n_tmask = coff_data (abfd)->local_n_tmask;
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| 309 |
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unsigned int n_btshft = coff_data (abfd)->local_n_btshft;
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| 310 |
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unsigned int n_btmask = coff_data (abfd)->local_n_btmask;
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| 311 |
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boolean keep_syms;
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| 312 |
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boolean default_copy;
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| 313 |
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bfd_size_type symcount;
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| 314 |
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struct coff_link_hash_entry **sym_hash;
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| 315 |
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bfd_size_type symesz;
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| 316 |
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bfd_byte *esym;
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| 317 |
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bfd_byte *esym_end;
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| 318 |
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| 319 |
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/* Keep the symbols during this function, in case the linker needs
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| 320 |
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to read the generic symbols in order to report an error message. */
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| 321 |
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keep_syms = obj_coff_keep_syms (abfd);
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| 322 |
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obj_coff_keep_syms (abfd) = true;
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| 323 |
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| 324 |
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if (info->keep_memory)
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default_copy = false;
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else
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default_copy = true;
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| 328 |
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| 329 |
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symcount = obj_raw_syment_count (abfd);
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| 330 |
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| 331 |
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/* We keep a list of the linker hash table entries that correspond
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| 332 |
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to particular symbols. */
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| 333 |
|
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sym_hash = ((struct coff_link_hash_entry **)
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| 334 |
|
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bfd_alloc (abfd,
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| 335 |
|
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((size_t) symcount
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| 336 |
|
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* sizeof (struct coff_link_hash_entry *))));
|
| 337 |
|
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if (sym_hash == NULL && symcount != 0)
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| 338 |
|
|
goto error_return;
|
| 339 |
|
|
obj_coff_sym_hashes (abfd) = sym_hash;
|
| 340 |
|
|
memset (sym_hash, 0,
|
| 341 |
|
|
(size_t) symcount * sizeof (struct coff_link_hash_entry *));
|
| 342 |
|
|
|
| 343 |
|
|
symesz = bfd_coff_symesz (abfd);
|
| 344 |
|
|
BFD_ASSERT (symesz == bfd_coff_auxesz (abfd));
|
| 345 |
|
|
esym = (bfd_byte *) obj_coff_external_syms (abfd);
|
| 346 |
|
|
esym_end = esym + symcount * symesz;
|
| 347 |
|
|
while (esym < esym_end)
|
| 348 |
|
|
{
|
| 349 |
|
|
struct internal_syment sym;
|
| 350 |
|
|
enum coff_symbol_classification classification;
|
| 351 |
|
|
boolean copy;
|
| 352 |
|
|
|
| 353 |
|
|
bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
|
| 354 |
|
|
|
| 355 |
|
|
classification = bfd_coff_classify_symbol (abfd, &sym);
|
| 356 |
|
|
if (classification != COFF_SYMBOL_LOCAL)
|
| 357 |
|
|
{
|
| 358 |
|
|
const char *name;
|
| 359 |
|
|
char buf[SYMNMLEN + 1];
|
| 360 |
|
|
flagword flags;
|
| 361 |
|
|
asection *section;
|
| 362 |
|
|
bfd_vma value;
|
| 363 |
|
|
boolean addit;
|
| 364 |
|
|
|
| 365 |
|
|
/* This symbol is externally visible. */
|
| 366 |
|
|
|
| 367 |
|
|
name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
|
| 368 |
|
|
if (name == NULL)
|
| 369 |
|
|
goto error_return;
|
| 370 |
|
|
|
| 371 |
|
|
/* We must copy the name into memory if we got it from the
|
| 372 |
|
|
syment itself, rather than the string table. */
|
| 373 |
|
|
copy = default_copy;
|
| 374 |
|
|
if (sym._n._n_n._n_zeroes != 0
|
| 375 |
|
|
|| sym._n._n_n._n_offset == 0)
|
| 376 |
|
|
copy = true;
|
| 377 |
|
|
|
| 378 |
|
|
value = sym.n_value;
|
| 379 |
|
|
|
| 380 |
|
|
switch (classification)
|
| 381 |
|
|
{
|
| 382 |
|
|
default:
|
| 383 |
|
|
abort ();
|
| 384 |
|
|
|
| 385 |
|
|
case COFF_SYMBOL_GLOBAL:
|
| 386 |
|
|
flags = BSF_EXPORT | BSF_GLOBAL;
|
| 387 |
|
|
section = coff_section_from_bfd_index (abfd, sym.n_scnum);
|
| 388 |
|
|
if (! obj_pe (abfd))
|
| 389 |
|
|
value -= section->vma;
|
| 390 |
|
|
break;
|
| 391 |
|
|
|
| 392 |
|
|
case COFF_SYMBOL_UNDEFINED:
|
| 393 |
|
|
flags = 0;
|
| 394 |
|
|
section = bfd_und_section_ptr;
|
| 395 |
|
|
break;
|
| 396 |
|
|
|
| 397 |
|
|
case COFF_SYMBOL_COMMON:
|
| 398 |
|
|
flags = BSF_GLOBAL;
|
| 399 |
|
|
section = bfd_com_section_ptr;
|
| 400 |
|
|
break;
|
| 401 |
|
|
|
| 402 |
|
|
case COFF_SYMBOL_PE_SECTION:
|
| 403 |
|
|
flags = BSF_SECTION_SYM | BSF_GLOBAL;
|
| 404 |
|
|
section = coff_section_from_bfd_index (abfd, sym.n_scnum);
|
| 405 |
|
|
break;
|
| 406 |
|
|
}
|
| 407 |
|
|
|
| 408 |
|
|
if (IS_WEAK_EXTERNAL (abfd, sym))
|
| 409 |
|
|
flags = BSF_WEAK;
|
| 410 |
|
|
|
| 411 |
|
|
addit = true;
|
| 412 |
|
|
|
| 413 |
|
|
/* In the PE format, section symbols actually refer to the
|
| 414 |
|
|
start of the output section. We handle them specially
|
| 415 |
|
|
here. */
|
| 416 |
|
|
if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0)
|
| 417 |
|
|
{
|
| 418 |
|
|
*sym_hash = coff_link_hash_lookup (coff_hash_table (info),
|
| 419 |
|
|
name, false, copy, false);
|
| 420 |
|
|
if (*sym_hash != NULL)
|
| 421 |
|
|
{
|
| 422 |
|
|
if (((*sym_hash)->coff_link_hash_flags
|
| 423 |
|
|
& COFF_LINK_HASH_PE_SECTION_SYMBOL) == 0
|
| 424 |
|
|
&& (*sym_hash)->root.type != bfd_link_hash_undefined
|
| 425 |
|
|
&& (*sym_hash)->root.type != bfd_link_hash_undefweak)
|
| 426 |
|
|
(*_bfd_error_handler)
|
| 427 |
|
|
("Warning: symbol `%s' is both section and non-section",
|
| 428 |
|
|
name);
|
| 429 |
|
|
|
| 430 |
|
|
addit = false;
|
| 431 |
|
|
}
|
| 432 |
|
|
}
|
| 433 |
|
|
|
| 434 |
|
|
/* The Microsoft Visual C compiler does string pooling by
|
| 435 |
|
|
hashing the constants to an internal symbol name, and
|
| 436 |
|
|
relying on the the linker comdat support to discard
|
| 437 |
|
|
duplicate names. However, if one string is a literal and
|
| 438 |
|
|
one is a data initializer, one will end up in the .data
|
| 439 |
|
|
section and one will end up in the .rdata section. The
|
| 440 |
|
|
Microsoft linker will combine them into the .data
|
| 441 |
|
|
section, which seems to be wrong since it might cause the
|
| 442 |
|
|
literal to change.
|
| 443 |
|
|
|
| 444 |
|
|
As long as there are no external references to the
|
| 445 |
|
|
symbols, which there shouldn't be, we can treat the .data
|
| 446 |
|
|
and .rdata instances as separate symbols. The comdat
|
| 447 |
|
|
code in the linker will do the appropriate merging. Here
|
| 448 |
|
|
we avoid getting a multiple definition error for one of
|
| 449 |
|
|
these special symbols.
|
| 450 |
|
|
|
| 451 |
|
|
FIXME: I don't think this will work in the case where
|
| 452 |
|
|
there are two object files which use the constants as a
|
| 453 |
|
|
literal and two object files which use it as a data
|
| 454 |
|
|
initializer. One or the other of the second object files
|
| 455 |
|
|
is going to wind up with an inappropriate reference. */
|
| 456 |
|
|
if (obj_pe (abfd)
|
| 457 |
|
|
&& (classification == COFF_SYMBOL_GLOBAL
|
| 458 |
|
|
|| classification == COFF_SYMBOL_PE_SECTION)
|
| 459 |
|
|
&& section->comdat != NULL
|
| 460 |
|
|
&& strncmp (name, "??_", 3) == 0
|
| 461 |
|
|
&& strcmp (name, section->comdat->name) == 0)
|
| 462 |
|
|
{
|
| 463 |
|
|
if (*sym_hash == NULL)
|
| 464 |
|
|
*sym_hash = coff_link_hash_lookup (coff_hash_table (info),
|
| 465 |
|
|
name, false, copy, false);
|
| 466 |
|
|
if (*sym_hash != NULL
|
| 467 |
|
|
&& (*sym_hash)->root.type == bfd_link_hash_defined
|
| 468 |
|
|
&& (*sym_hash)->root.u.def.section->comdat != NULL
|
| 469 |
|
|
&& strcmp ((*sym_hash)->root.u.def.section->comdat->name,
|
| 470 |
|
|
section->comdat->name) == 0)
|
| 471 |
|
|
addit = false;
|
| 472 |
|
|
}
|
| 473 |
|
|
|
| 474 |
|
|
if (addit)
|
| 475 |
|
|
{
|
| 476 |
|
|
if (! (bfd_coff_link_add_one_symbol
|
| 477 |
|
|
(info, abfd, name, flags, section, value,
|
| 478 |
|
|
(const char *) NULL, copy, false,
|
| 479 |
|
|
(struct bfd_link_hash_entry **) sym_hash)))
|
| 480 |
|
|
goto error_return;
|
| 481 |
|
|
}
|
| 482 |
|
|
|
| 483 |
|
|
if (obj_pe (abfd) && (flags & BSF_SECTION_SYM) != 0)
|
| 484 |
|
|
(*sym_hash)->coff_link_hash_flags |=
|
| 485 |
|
|
COFF_LINK_HASH_PE_SECTION_SYMBOL;
|
| 486 |
|
|
|
| 487 |
|
|
/* Limit the alignment of a common symbol to the possible
|
| 488 |
|
|
alignment of a section. There is no point to permitting
|
| 489 |
|
|
a higher alignment for a common symbol: we can not
|
| 490 |
|
|
guarantee it, and it may cause us to allocate extra space
|
| 491 |
|
|
in the common section. */
|
| 492 |
|
|
if (section == bfd_com_section_ptr
|
| 493 |
|
|
&& (*sym_hash)->root.type == bfd_link_hash_common
|
| 494 |
|
|
&& ((*sym_hash)->root.u.c.p->alignment_power
|
| 495 |
|
|
> bfd_coff_default_section_alignment_power (abfd)))
|
| 496 |
|
|
(*sym_hash)->root.u.c.p->alignment_power
|
| 497 |
|
|
= bfd_coff_default_section_alignment_power (abfd);
|
| 498 |
|
|
|
| 499 |
|
|
if (info->hash->creator->flavour == bfd_get_flavour (abfd))
|
| 500 |
|
|
{
|
| 501 |
|
|
/* If we don't have any symbol information currently in
|
| 502 |
|
|
the hash table, or if we are looking at a symbol
|
| 503 |
|
|
definition, then update the symbol class and type in
|
| 504 |
|
|
the hash table. */
|
| 505 |
|
|
if (((*sym_hash)->class == C_NULL
|
| 506 |
|
|
&& (*sym_hash)->type == T_NULL)
|
| 507 |
|
|
|| sym.n_scnum != 0
|
| 508 |
|
|
|| (sym.n_value != 0
|
| 509 |
|
|
&& (*sym_hash)->root.type != bfd_link_hash_defined
|
| 510 |
|
|
&& (*sym_hash)->root.type != bfd_link_hash_defweak))
|
| 511 |
|
|
{
|
| 512 |
|
|
(*sym_hash)->class = sym.n_sclass;
|
| 513 |
|
|
if (sym.n_type != T_NULL)
|
| 514 |
|
|
{
|
| 515 |
|
|
/* We want to warn if the type changed, but not
|
| 516 |
|
|
if it changed from an unspecified type.
|
| 517 |
|
|
Testing the whole type byte may work, but the
|
| 518 |
|
|
change from (e.g.) a function of unspecified
|
| 519 |
|
|
type to function of known type also wants to
|
| 520 |
|
|
skip the warning. */
|
| 521 |
|
|
if ((*sym_hash)->type != T_NULL
|
| 522 |
|
|
&& (*sym_hash)->type != sym.n_type
|
| 523 |
|
|
&& !(DTYPE ((*sym_hash)->type) == DTYPE (sym.n_type)
|
| 524 |
|
|
&& (BTYPE ((*sym_hash)->type) == T_NULL
|
| 525 |
|
|
|| BTYPE (sym.n_type) == T_NULL)))
|
| 526 |
|
|
(*_bfd_error_handler)
|
| 527 |
|
|
(_("Warning: type of symbol `%s' changed from %d to %d in %s"),
|
| 528 |
|
|
name, (*sym_hash)->type, sym.n_type,
|
| 529 |
|
|
bfd_get_filename (abfd));
|
| 530 |
|
|
|
| 531 |
|
|
/* We don't want to change from a meaningful
|
| 532 |
|
|
base type to a null one, but if we know
|
| 533 |
|
|
nothing, take what little we might now know. */
|
| 534 |
|
|
if (BTYPE (sym.n_type) != T_NULL
|
| 535 |
|
|
|| (*sym_hash)->type == T_NULL)
|
| 536 |
|
|
(*sym_hash)->type = sym.n_type;
|
| 537 |
|
|
}
|
| 538 |
|
|
(*sym_hash)->auxbfd = abfd;
|
| 539 |
|
|
if (sym.n_numaux != 0)
|
| 540 |
|
|
{
|
| 541 |
|
|
union internal_auxent *alloc;
|
| 542 |
|
|
unsigned int i;
|
| 543 |
|
|
bfd_byte *eaux;
|
| 544 |
|
|
union internal_auxent *iaux;
|
| 545 |
|
|
|
| 546 |
|
|
(*sym_hash)->numaux = sym.n_numaux;
|
| 547 |
|
|
alloc = ((union internal_auxent *)
|
| 548 |
|
|
bfd_hash_allocate (&info->hash->table,
|
| 549 |
|
|
(sym.n_numaux
|
| 550 |
|
|
* sizeof (*alloc))));
|
| 551 |
|
|
if (alloc == NULL)
|
| 552 |
|
|
goto error_return;
|
| 553 |
|
|
for (i = 0, eaux = esym + symesz, iaux = alloc;
|
| 554 |
|
|
i < sym.n_numaux;
|
| 555 |
|
|
i++, eaux += symesz, iaux++)
|
| 556 |
|
|
bfd_coff_swap_aux_in (abfd, (PTR) eaux, sym.n_type,
|
| 557 |
|
|
sym.n_sclass, i, sym.n_numaux,
|
| 558 |
|
|
(PTR) iaux);
|
| 559 |
|
|
(*sym_hash)->aux = alloc;
|
| 560 |
|
|
}
|
| 561 |
|
|
}
|
| 562 |
|
|
}
|
| 563 |
|
|
|
| 564 |
|
|
if (classification == COFF_SYMBOL_PE_SECTION
|
| 565 |
|
|
&& (*sym_hash)->numaux != 0)
|
| 566 |
|
|
{
|
| 567 |
|
|
/* Some PE sections (such as .bss) have a zero size in
|
| 568 |
|
|
the section header, but a non-zero size in the AUX
|
| 569 |
|
|
record. Correct that here.
|
| 570 |
|
|
|
| 571 |
|
|
FIXME: This is not at all the right place to do this.
|
| 572 |
|
|
For example, it won't help objdump. This needs to be
|
| 573 |
|
|
done when we swap in the section header. */
|
| 574 |
|
|
|
| 575 |
|
|
BFD_ASSERT ((*sym_hash)->numaux == 1);
|
| 576 |
|
|
if (section->_raw_size == 0)
|
| 577 |
|
|
section->_raw_size = (*sym_hash)->aux[0].x_scn.x_scnlen;
|
| 578 |
|
|
|
| 579 |
|
|
/* FIXME: We could test whether the section sizes
|
| 580 |
|
|
matches the size in the aux entry, but apparently
|
| 581 |
|
|
that sometimes fails unexpectedly. */
|
| 582 |
|
|
}
|
| 583 |
|
|
}
|
| 584 |
|
|
|
| 585 |
|
|
esym += (sym.n_numaux + 1) * symesz;
|
| 586 |
|
|
sym_hash += sym.n_numaux + 1;
|
| 587 |
|
|
}
|
| 588 |
|
|
|
| 589 |
|
|
/* If this is a non-traditional, non-relocateable link, try to
|
| 590 |
|
|
optimize the handling of any .stab/.stabstr sections. */
|
| 591 |
|
|
if (! info->relocateable
|
| 592 |
|
|
&& ! info->traditional_format
|
| 593 |
|
|
&& info->hash->creator->flavour == bfd_get_flavour (abfd)
|
| 594 |
|
|
&& (info->strip != strip_all && info->strip != strip_debugger))
|
| 595 |
|
|
{
|
| 596 |
|
|
asection *stab, *stabstr;
|
| 597 |
|
|
|
| 598 |
|
|
stab = bfd_get_section_by_name (abfd, ".stab");
|
| 599 |
|
|
if (stab != NULL)
|
| 600 |
|
|
{
|
| 601 |
|
|
stabstr = bfd_get_section_by_name (abfd, ".stabstr");
|
| 602 |
|
|
|
| 603 |
|
|
if (stabstr != NULL)
|
| 604 |
|
|
{
|
| 605 |
|
|
struct coff_link_hash_table *table;
|
| 606 |
|
|
struct coff_section_tdata *secdata;
|
| 607 |
|
|
|
| 608 |
|
|
secdata = coff_section_data (abfd, stab);
|
| 609 |
|
|
if (secdata == NULL)
|
| 610 |
|
|
{
|
| 611 |
|
|
stab->used_by_bfd =
|
| 612 |
|
|
(PTR) bfd_zalloc (abfd,
|
| 613 |
|
|
sizeof (struct coff_section_tdata));
|
| 614 |
|
|
if (stab->used_by_bfd == NULL)
|
| 615 |
|
|
goto error_return;
|
| 616 |
|
|
secdata = coff_section_data (abfd, stab);
|
| 617 |
|
|
}
|
| 618 |
|
|
|
| 619 |
|
|
table = coff_hash_table (info);
|
| 620 |
|
|
|
| 621 |
|
|
if (! _bfd_link_section_stabs (abfd, &table->stab_info,
|
| 622 |
|
|
stab, stabstr,
|
| 623 |
|
|
&secdata->stab_info))
|
| 624 |
|
|
goto error_return;
|
| 625 |
|
|
}
|
| 626 |
|
|
}
|
| 627 |
|
|
}
|
| 628 |
|
|
|
| 629 |
|
|
obj_coff_keep_syms (abfd) = keep_syms;
|
| 630 |
|
|
|
| 631 |
|
|
return true;
|
| 632 |
|
|
|
| 633 |
|
|
error_return:
|
| 634 |
|
|
obj_coff_keep_syms (abfd) = keep_syms;
|
| 635 |
|
|
return false;
|
| 636 |
|
|
}
|
| 637 |
|
|
|
| 638 |
|
|
/* Do the final link step. */
|
| 639 |
|
|
|
| 640 |
|
|
boolean
|
| 641 |
|
|
_bfd_coff_final_link (abfd, info)
|
| 642 |
|
|
bfd *abfd;
|
| 643 |
|
|
struct bfd_link_info *info;
|
| 644 |
|
|
{
|
| 645 |
|
|
bfd_size_type symesz;
|
| 646 |
|
|
struct coff_final_link_info finfo;
|
| 647 |
|
|
boolean debug_merge_allocated;
|
| 648 |
|
|
boolean long_section_names;
|
| 649 |
|
|
asection *o;
|
| 650 |
|
|
struct bfd_link_order *p;
|
| 651 |
|
|
size_t max_sym_count;
|
| 652 |
|
|
size_t max_lineno_count;
|
| 653 |
|
|
size_t max_reloc_count;
|
| 654 |
|
|
size_t max_output_reloc_count;
|
| 655 |
|
|
size_t max_contents_size;
|
| 656 |
|
|
file_ptr rel_filepos;
|
| 657 |
|
|
unsigned int relsz;
|
| 658 |
|
|
file_ptr line_filepos;
|
| 659 |
|
|
unsigned int linesz;
|
| 660 |
|
|
bfd *sub;
|
| 661 |
|
|
bfd_byte *external_relocs = NULL;
|
| 662 |
|
|
char strbuf[STRING_SIZE_SIZE];
|
| 663 |
|
|
|
| 664 |
|
|
symesz = bfd_coff_symesz (abfd);
|
| 665 |
|
|
|
| 666 |
|
|
finfo.info = info;
|
| 667 |
|
|
finfo.output_bfd = abfd;
|
| 668 |
|
|
finfo.strtab = NULL;
|
| 669 |
|
|
finfo.section_info = NULL;
|
| 670 |
|
|
finfo.last_file_index = -1;
|
| 671 |
|
|
finfo.last_bf_index = -1;
|
| 672 |
|
|
finfo.internal_syms = NULL;
|
| 673 |
|
|
finfo.sec_ptrs = NULL;
|
| 674 |
|
|
finfo.sym_indices = NULL;
|
| 675 |
|
|
finfo.outsyms = NULL;
|
| 676 |
|
|
finfo.linenos = NULL;
|
| 677 |
|
|
finfo.contents = NULL;
|
| 678 |
|
|
finfo.external_relocs = NULL;
|
| 679 |
|
|
finfo.internal_relocs = NULL;
|
| 680 |
|
|
finfo.global_to_static = false;
|
| 681 |
|
|
debug_merge_allocated = false;
|
| 682 |
|
|
|
| 683 |
|
|
coff_data (abfd)->link_info = info;
|
| 684 |
|
|
|
| 685 |
|
|
finfo.strtab = _bfd_stringtab_init ();
|
| 686 |
|
|
if (finfo.strtab == NULL)
|
| 687 |
|
|
goto error_return;
|
| 688 |
|
|
|
| 689 |
|
|
if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
|
| 690 |
|
|
goto error_return;
|
| 691 |
|
|
debug_merge_allocated = true;
|
| 692 |
|
|
|
| 693 |
|
|
/* Compute the file positions for all the sections. */
|
| 694 |
|
|
if (! abfd->output_has_begun)
|
| 695 |
|
|
{
|
| 696 |
|
|
if (! bfd_coff_compute_section_file_positions (abfd))
|
| 697 |
|
|
goto error_return;
|
| 698 |
|
|
}
|
| 699 |
|
|
|
| 700 |
|
|
/* Count the line numbers and relocation entries required for the
|
| 701 |
|
|
output file. Set the file positions for the relocs. */
|
| 702 |
|
|
rel_filepos = obj_relocbase (abfd);
|
| 703 |
|
|
relsz = bfd_coff_relsz (abfd);
|
| 704 |
|
|
max_contents_size = 0;
|
| 705 |
|
|
max_lineno_count = 0;
|
| 706 |
|
|
max_reloc_count = 0;
|
| 707 |
|
|
|
| 708 |
|
|
long_section_names = false;
|
| 709 |
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
| 710 |
|
|
{
|
| 711 |
|
|
o->reloc_count = 0;
|
| 712 |
|
|
o->lineno_count = 0;
|
| 713 |
|
|
for (p = o->link_order_head; p != NULL; p = p->next)
|
| 714 |
|
|
{
|
| 715 |
|
|
if (p->type == bfd_indirect_link_order)
|
| 716 |
|
|
{
|
| 717 |
|
|
asection *sec;
|
| 718 |
|
|
|
| 719 |
|
|
sec = p->u.indirect.section;
|
| 720 |
|
|
|
| 721 |
|
|
/* Mark all sections which are to be included in the
|
| 722 |
|
|
link. This will normally be every section. We need
|
| 723 |
|
|
to do this so that we can identify any sections which
|
| 724 |
|
|
the linker has decided to not include. */
|
| 725 |
|
|
sec->linker_mark = true;
|
| 726 |
|
|
|
| 727 |
|
|
if (info->strip == strip_none
|
| 728 |
|
|
|| info->strip == strip_some)
|
| 729 |
|
|
o->lineno_count += sec->lineno_count;
|
| 730 |
|
|
|
| 731 |
|
|
if (info->relocateable)
|
| 732 |
|
|
o->reloc_count += sec->reloc_count;
|
| 733 |
|
|
|
| 734 |
|
|
if (sec->_raw_size > max_contents_size)
|
| 735 |
|
|
max_contents_size = sec->_raw_size;
|
| 736 |
|
|
if (sec->lineno_count > max_lineno_count)
|
| 737 |
|
|
max_lineno_count = sec->lineno_count;
|
| 738 |
|
|
if (sec->reloc_count > max_reloc_count)
|
| 739 |
|
|
max_reloc_count = sec->reloc_count;
|
| 740 |
|
|
}
|
| 741 |
|
|
else if (info->relocateable
|
| 742 |
|
|
&& (p->type == bfd_section_reloc_link_order
|
| 743 |
|
|
|| p->type == bfd_symbol_reloc_link_order))
|
| 744 |
|
|
++o->reloc_count;
|
| 745 |
|
|
}
|
| 746 |
|
|
if (o->reloc_count == 0)
|
| 747 |
|
|
o->rel_filepos = 0;
|
| 748 |
|
|
else
|
| 749 |
|
|
{
|
| 750 |
|
|
o->flags |= SEC_RELOC;
|
| 751 |
|
|
o->rel_filepos = rel_filepos;
|
| 752 |
|
|
rel_filepos += o->reloc_count * relsz;
|
| 753 |
|
|
}
|
| 754 |
|
|
|
| 755 |
|
|
if (bfd_coff_long_section_names (abfd)
|
| 756 |
|
|
&& strlen (o->name) > SCNNMLEN)
|
| 757 |
|
|
{
|
| 758 |
|
|
/* This section has a long name which must go in the string
|
| 759 |
|
|
table. This must correspond to the code in
|
| 760 |
|
|
coff_write_object_contents which puts the string index
|
| 761 |
|
|
into the s_name field of the section header. That is why
|
| 762 |
|
|
we pass hash as false. */
|
| 763 |
|
|
if (_bfd_stringtab_add (finfo.strtab, o->name, false, false)
|
| 764 |
|
|
== (bfd_size_type) -1)
|
| 765 |
|
|
goto error_return;
|
| 766 |
|
|
long_section_names = true;
|
| 767 |
|
|
}
|
| 768 |
|
|
}
|
| 769 |
|
|
|
| 770 |
|
|
/* If doing a relocateable link, allocate space for the pointers we
|
| 771 |
|
|
need to keep. */
|
| 772 |
|
|
if (info->relocateable)
|
| 773 |
|
|
{
|
| 774 |
|
|
unsigned int i;
|
| 775 |
|
|
|
| 776 |
|
|
/* We use section_count + 1, rather than section_count, because
|
| 777 |
|
|
the target_index fields are 1 based. */
|
| 778 |
|
|
finfo.section_info =
|
| 779 |
|
|
((struct coff_link_section_info *)
|
| 780 |
|
|
bfd_malloc ((abfd->section_count + 1)
|
| 781 |
|
|
* sizeof (struct coff_link_section_info)));
|
| 782 |
|
|
if (finfo.section_info == NULL)
|
| 783 |
|
|
goto error_return;
|
| 784 |
|
|
for (i = 0; i <= abfd->section_count; i++)
|
| 785 |
|
|
{
|
| 786 |
|
|
finfo.section_info[i].relocs = NULL;
|
| 787 |
|
|
finfo.section_info[i].rel_hashes = NULL;
|
| 788 |
|
|
}
|
| 789 |
|
|
}
|
| 790 |
|
|
|
| 791 |
|
|
/* We now know the size of the relocs, so we can determine the file
|
| 792 |
|
|
positions of the line numbers. */
|
| 793 |
|
|
line_filepos = rel_filepos;
|
| 794 |
|
|
linesz = bfd_coff_linesz (abfd);
|
| 795 |
|
|
max_output_reloc_count = 0;
|
| 796 |
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
| 797 |
|
|
{
|
| 798 |
|
|
if (o->lineno_count == 0)
|
| 799 |
|
|
o->line_filepos = 0;
|
| 800 |
|
|
else
|
| 801 |
|
|
{
|
| 802 |
|
|
o->line_filepos = line_filepos;
|
| 803 |
|
|
line_filepos += o->lineno_count * linesz;
|
| 804 |
|
|
}
|
| 805 |
|
|
|
| 806 |
|
|
if (o->reloc_count != 0)
|
| 807 |
|
|
{
|
| 808 |
|
|
/* We don't know the indices of global symbols until we have
|
| 809 |
|
|
written out all the local symbols. For each section in
|
| 810 |
|
|
the output file, we keep an array of pointers to hash
|
| 811 |
|
|
table entries. Each entry in the array corresponds to a
|
| 812 |
|
|
reloc. When we find a reloc against a global symbol, we
|
| 813 |
|
|
set the corresponding entry in this array so that we can
|
| 814 |
|
|
fix up the symbol index after we have written out all the
|
| 815 |
|
|
local symbols.
|
| 816 |
|
|
|
| 817 |
|
|
Because of this problem, we also keep the relocs in
|
| 818 |
|
|
memory until the end of the link. This wastes memory,
|
| 819 |
|
|
but only when doing a relocateable link, which is not the
|
| 820 |
|
|
common case. */
|
| 821 |
|
|
BFD_ASSERT (info->relocateable);
|
| 822 |
|
|
finfo.section_info[o->target_index].relocs =
|
| 823 |
|
|
((struct internal_reloc *)
|
| 824 |
|
|
bfd_malloc (o->reloc_count * sizeof (struct internal_reloc)));
|
| 825 |
|
|
finfo.section_info[o->target_index].rel_hashes =
|
| 826 |
|
|
((struct coff_link_hash_entry **)
|
| 827 |
|
|
bfd_malloc (o->reloc_count
|
| 828 |
|
|
* sizeof (struct coff_link_hash_entry *)));
|
| 829 |
|
|
if (finfo.section_info[o->target_index].relocs == NULL
|
| 830 |
|
|
|| finfo.section_info[o->target_index].rel_hashes == NULL)
|
| 831 |
|
|
goto error_return;
|
| 832 |
|
|
|
| 833 |
|
|
if (o->reloc_count > max_output_reloc_count)
|
| 834 |
|
|
max_output_reloc_count = o->reloc_count;
|
| 835 |
|
|
}
|
| 836 |
|
|
|
| 837 |
|
|
/* Reset the reloc and lineno counts, so that we can use them to
|
| 838 |
|
|
count the number of entries we have output so far. */
|
| 839 |
|
|
o->reloc_count = 0;
|
| 840 |
|
|
o->lineno_count = 0;
|
| 841 |
|
|
}
|
| 842 |
|
|
|
| 843 |
|
|
obj_sym_filepos (abfd) = line_filepos;
|
| 844 |
|
|
|
| 845 |
|
|
/* Figure out the largest number of symbols in an input BFD. Take
|
| 846 |
|
|
the opportunity to clear the output_has_begun fields of all the
|
| 847 |
|
|
input BFD's. */
|
| 848 |
|
|
max_sym_count = 0;
|
| 849 |
|
|
for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
|
| 850 |
|
|
{
|
| 851 |
|
|
size_t sz;
|
| 852 |
|
|
|
| 853 |
|
|
sub->output_has_begun = false;
|
| 854 |
|
|
sz = obj_raw_syment_count (sub);
|
| 855 |
|
|
if (sz > max_sym_count)
|
| 856 |
|
|
max_sym_count = sz;
|
| 857 |
|
|
}
|
| 858 |
|
|
|
| 859 |
|
|
/* Allocate some buffers used while linking. */
|
| 860 |
|
|
finfo.internal_syms = ((struct internal_syment *)
|
| 861 |
|
|
bfd_malloc (max_sym_count
|
| 862 |
|
|
* sizeof (struct internal_syment)));
|
| 863 |
|
|
finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count
|
| 864 |
|
|
* sizeof (asection *));
|
| 865 |
|
|
finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
|
| 866 |
|
|
finfo.outsyms = ((bfd_byte *)
|
| 867 |
|
|
bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
|
| 868 |
|
|
finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count
|
| 869 |
|
|
* bfd_coff_linesz (abfd));
|
| 870 |
|
|
finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
|
| 871 |
|
|
finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
|
| 872 |
|
|
if (! info->relocateable)
|
| 873 |
|
|
finfo.internal_relocs = ((struct internal_reloc *)
|
| 874 |
|
|
bfd_malloc (max_reloc_count
|
| 875 |
|
|
* sizeof (struct internal_reloc)));
|
| 876 |
|
|
if ((finfo.internal_syms == NULL && max_sym_count > 0)
|
| 877 |
|
|
|| (finfo.sec_ptrs == NULL && max_sym_count > 0)
|
| 878 |
|
|
|| (finfo.sym_indices == NULL && max_sym_count > 0)
|
| 879 |
|
|
|| finfo.outsyms == NULL
|
| 880 |
|
|
|| (finfo.linenos == NULL && max_lineno_count > 0)
|
| 881 |
|
|
|| (finfo.contents == NULL && max_contents_size > 0)
|
| 882 |
|
|
|| (finfo.external_relocs == NULL && max_reloc_count > 0)
|
| 883 |
|
|
|| (! info->relocateable
|
| 884 |
|
|
&& finfo.internal_relocs == NULL
|
| 885 |
|
|
&& max_reloc_count > 0))
|
| 886 |
|
|
goto error_return;
|
| 887 |
|
|
|
| 888 |
|
|
/* We now know the position of everything in the file, except that
|
| 889 |
|
|
we don't know the size of the symbol table and therefore we don't
|
| 890 |
|
|
know where the string table starts. We just build the string
|
| 891 |
|
|
table in memory as we go along. We process all the relocations
|
| 892 |
|
|
for a single input file at once. */
|
| 893 |
|
|
obj_raw_syment_count (abfd) = 0;
|
| 894 |
|
|
|
| 895 |
|
|
if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
|
| 896 |
|
|
{
|
| 897 |
|
|
if (! bfd_coff_start_final_link (abfd, info))
|
| 898 |
|
|
goto error_return;
|
| 899 |
|
|
}
|
| 900 |
|
|
|
| 901 |
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
| 902 |
|
|
{
|
| 903 |
|
|
for (p = o->link_order_head; p != NULL; p = p->next)
|
| 904 |
|
|
{
|
| 905 |
|
|
if (p->type == bfd_indirect_link_order
|
| 906 |
|
|
&& bfd_family_coff (p->u.indirect.section->owner))
|
| 907 |
|
|
{
|
| 908 |
|
|
sub = p->u.indirect.section->owner;
|
| 909 |
|
|
if (! bfd_coff_link_output_has_begun (sub, & finfo))
|
| 910 |
|
|
{
|
| 911 |
|
|
if (! _bfd_coff_link_input_bfd (&finfo, sub))
|
| 912 |
|
|
goto error_return;
|
| 913 |
|
|
sub->output_has_begun = true;
|
| 914 |
|
|
}
|
| 915 |
|
|
}
|
| 916 |
|
|
else if (p->type == bfd_section_reloc_link_order
|
| 917 |
|
|
|| p->type == bfd_symbol_reloc_link_order)
|
| 918 |
|
|
{
|
| 919 |
|
|
if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
|
| 920 |
|
|
goto error_return;
|
| 921 |
|
|
}
|
| 922 |
|
|
else
|
| 923 |
|
|
{
|
| 924 |
|
|
if (! _bfd_default_link_order (abfd, info, o, p))
|
| 925 |
|
|
goto error_return;
|
| 926 |
|
|
}
|
| 927 |
|
|
}
|
| 928 |
|
|
}
|
| 929 |
|
|
|
| 930 |
|
|
if (! bfd_coff_final_link_postscript (abfd, & finfo))
|
| 931 |
|
|
goto error_return;
|
| 932 |
|
|
|
| 933 |
|
|
/* Free up the buffers used by _bfd_coff_link_input_bfd. */
|
| 934 |
|
|
|
| 935 |
|
|
coff_debug_merge_hash_table_free (&finfo.debug_merge);
|
| 936 |
|
|
debug_merge_allocated = false;
|
| 937 |
|
|
|
| 938 |
|
|
if (finfo.internal_syms != NULL)
|
| 939 |
|
|
{
|
| 940 |
|
|
free (finfo.internal_syms);
|
| 941 |
|
|
finfo.internal_syms = NULL;
|
| 942 |
|
|
}
|
| 943 |
|
|
if (finfo.sec_ptrs != NULL)
|
| 944 |
|
|
{
|
| 945 |
|
|
free (finfo.sec_ptrs);
|
| 946 |
|
|
finfo.sec_ptrs = NULL;
|
| 947 |
|
|
}
|
| 948 |
|
|
if (finfo.sym_indices != NULL)
|
| 949 |
|
|
{
|
| 950 |
|
|
free (finfo.sym_indices);
|
| 951 |
|
|
finfo.sym_indices = NULL;
|
| 952 |
|
|
}
|
| 953 |
|
|
if (finfo.linenos != NULL)
|
| 954 |
|
|
{
|
| 955 |
|
|
free (finfo.linenos);
|
| 956 |
|
|
finfo.linenos = NULL;
|
| 957 |
|
|
}
|
| 958 |
|
|
if (finfo.contents != NULL)
|
| 959 |
|
|
{
|
| 960 |
|
|
free (finfo.contents);
|
| 961 |
|
|
finfo.contents = NULL;
|
| 962 |
|
|
}
|
| 963 |
|
|
if (finfo.external_relocs != NULL)
|
| 964 |
|
|
{
|
| 965 |
|
|
free (finfo.external_relocs);
|
| 966 |
|
|
finfo.external_relocs = NULL;
|
| 967 |
|
|
}
|
| 968 |
|
|
if (finfo.internal_relocs != NULL)
|
| 969 |
|
|
{
|
| 970 |
|
|
free (finfo.internal_relocs);
|
| 971 |
|
|
finfo.internal_relocs = NULL;
|
| 972 |
|
|
}
|
| 973 |
|
|
|
| 974 |
|
|
/* The value of the last C_FILE symbol is supposed to be the symbol
|
| 975 |
|
|
index of the first external symbol. Write it out again if
|
| 976 |
|
|
necessary. */
|
| 977 |
|
|
if (finfo.last_file_index != -1
|
| 978 |
|
|
&& (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
|
| 979 |
|
|
{
|
| 980 |
|
|
finfo.last_file.n_value = obj_raw_syment_count (abfd);
|
| 981 |
|
|
bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
|
| 982 |
|
|
(PTR) finfo.outsyms);
|
| 983 |
|
|
if (bfd_seek (abfd,
|
| 984 |
|
|
(obj_sym_filepos (abfd)
|
| 985 |
|
|
+ finfo.last_file_index * symesz),
|
| 986 |
|
|
SEEK_SET) != 0
|
| 987 |
|
|
|| bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
|
| 988 |
|
|
return false;
|
| 989 |
|
|
}
|
| 990 |
|
|
|
| 991 |
|
|
/* If doing task linking (ld --task-link) then make a pass through the
|
| 992 |
|
|
global symbols, writing out any that are defined, and making them
|
| 993 |
|
|
static. */
|
| 994 |
|
|
if (info->task_link)
|
| 995 |
|
|
{
|
| 996 |
|
|
finfo.failed = false;
|
| 997 |
|
|
coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_task_globals,
|
| 998 |
|
|
(PTR) &finfo);
|
| 999 |
|
|
if (finfo.failed)
|
| 1000 |
|
|
goto error_return;
|
| 1001 |
|
|
}
|
| 1002 |
|
|
|
| 1003 |
|
|
/* Write out the global symbols. */
|
| 1004 |
|
|
finfo.failed = false;
|
| 1005 |
|
|
coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
|
| 1006 |
|
|
(PTR) &finfo);
|
| 1007 |
|
|
if (finfo.failed)
|
| 1008 |
|
|
goto error_return;
|
| 1009 |
|
|
|
| 1010 |
|
|
/* The outsyms buffer is used by _bfd_coff_write_global_sym. */
|
| 1011 |
|
|
if (finfo.outsyms != NULL)
|
| 1012 |
|
|
{
|
| 1013 |
|
|
free (finfo.outsyms);
|
| 1014 |
|
|
finfo.outsyms = NULL;
|
| 1015 |
|
|
}
|
| 1016 |
|
|
|
| 1017 |
|
|
if (info->relocateable && max_output_reloc_count > 0)
|
| 1018 |
|
|
{
|
| 1019 |
|
|
/* Now that we have written out all the global symbols, we know
|
| 1020 |
|
|
the symbol indices to use for relocs against them, and we can
|
| 1021 |
|
|
finally write out the relocs. */
|
| 1022 |
|
|
external_relocs = ((bfd_byte *)
|
| 1023 |
|
|
bfd_malloc (max_output_reloc_count * relsz));
|
| 1024 |
|
|
if (external_relocs == NULL)
|
| 1025 |
|
|
goto error_return;
|
| 1026 |
|
|
|
| 1027 |
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
| 1028 |
|
|
{
|
| 1029 |
|
|
struct internal_reloc *irel;
|
| 1030 |
|
|
struct internal_reloc *irelend;
|
| 1031 |
|
|
struct coff_link_hash_entry **rel_hash;
|
| 1032 |
|
|
bfd_byte *erel;
|
| 1033 |
|
|
|
| 1034 |
|
|
if (o->reloc_count == 0)
|
| 1035 |
|
|
continue;
|
| 1036 |
|
|
|
| 1037 |
|
|
irel = finfo.section_info[o->target_index].relocs;
|
| 1038 |
|
|
irelend = irel + o->reloc_count;
|
| 1039 |
|
|
rel_hash = finfo.section_info[o->target_index].rel_hashes;
|
| 1040 |
|
|
erel = external_relocs;
|
| 1041 |
|
|
for (; irel < irelend; irel++, rel_hash++, erel += relsz)
|
| 1042 |
|
|
{
|
| 1043 |
|
|
if (*rel_hash != NULL)
|
| 1044 |
|
|
{
|
| 1045 |
|
|
BFD_ASSERT ((*rel_hash)->indx >= 0);
|
| 1046 |
|
|
irel->r_symndx = (*rel_hash)->indx;
|
| 1047 |
|
|
}
|
| 1048 |
|
|
bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
|
| 1049 |
|
|
}
|
| 1050 |
|
|
|
| 1051 |
|
|
if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
|
| 1052 |
|
|
|| bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
|
| 1053 |
|
|
abfd) != relsz * o->reloc_count)
|
| 1054 |
|
|
goto error_return;
|
| 1055 |
|
|
}
|
| 1056 |
|
|
|
| 1057 |
|
|
free (external_relocs);
|
| 1058 |
|
|
external_relocs = NULL;
|
| 1059 |
|
|
}
|
| 1060 |
|
|
|
| 1061 |
|
|
/* Free up the section information. */
|
| 1062 |
|
|
if (finfo.section_info != NULL)
|
| 1063 |
|
|
{
|
| 1064 |
|
|
unsigned int i;
|
| 1065 |
|
|
|
| 1066 |
|
|
for (i = 0; i < abfd->section_count; i++)
|
| 1067 |
|
|
{
|
| 1068 |
|
|
if (finfo.section_info[i].relocs != NULL)
|
| 1069 |
|
|
free (finfo.section_info[i].relocs);
|
| 1070 |
|
|
if (finfo.section_info[i].rel_hashes != NULL)
|
| 1071 |
|
|
free (finfo.section_info[i].rel_hashes);
|
| 1072 |
|
|
}
|
| 1073 |
|
|
free (finfo.section_info);
|
| 1074 |
|
|
finfo.section_info = NULL;
|
| 1075 |
|
|
}
|
| 1076 |
|
|
|
| 1077 |
|
|
/* If we have optimized stabs strings, output them. */
|
| 1078 |
|
|
if (coff_hash_table (info)->stab_info != NULL)
|
| 1079 |
|
|
{
|
| 1080 |
|
|
if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
|
| 1081 |
|
|
return false;
|
| 1082 |
|
|
}
|
| 1083 |
|
|
|
| 1084 |
|
|
/* Write out the string table. */
|
| 1085 |
|
|
if (obj_raw_syment_count (abfd) != 0 || long_section_names)
|
| 1086 |
|
|
{
|
| 1087 |
|
|
if (bfd_seek (abfd,
|
| 1088 |
|
|
(obj_sym_filepos (abfd)
|
| 1089 |
|
|
+ obj_raw_syment_count (abfd) * symesz),
|
| 1090 |
|
|
SEEK_SET) != 0)
|
| 1091 |
|
|
return false;
|
| 1092 |
|
|
|
| 1093 |
|
|
#if STRING_SIZE_SIZE == 4
|
| 1094 |
|
|
bfd_h_put_32 (abfd,
|
| 1095 |
|
|
_bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
|
| 1096 |
|
|
(bfd_byte *) strbuf);
|
| 1097 |
|
|
#else
|
| 1098 |
|
|
#error Change bfd_h_put_32
|
| 1099 |
|
|
#endif
|
| 1100 |
|
|
|
| 1101 |
|
|
if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE)
|
| 1102 |
|
|
return false;
|
| 1103 |
|
|
|
| 1104 |
|
|
if (! _bfd_stringtab_emit (abfd, finfo.strtab))
|
| 1105 |
|
|
return false;
|
| 1106 |
|
|
|
| 1107 |
|
|
obj_coff_strings_written (abfd) = true;
|
| 1108 |
|
|
}
|
| 1109 |
|
|
|
| 1110 |
|
|
_bfd_stringtab_free (finfo.strtab);
|
| 1111 |
|
|
|
| 1112 |
|
|
/* Setting bfd_get_symcount to 0 will cause write_object_contents to
|
| 1113 |
|
|
not try to write out the symbols. */
|
| 1114 |
|
|
bfd_get_symcount (abfd) = 0;
|
| 1115 |
|
|
|
| 1116 |
|
|
return true;
|
| 1117 |
|
|
|
| 1118 |
|
|
error_return:
|
| 1119 |
|
|
if (debug_merge_allocated)
|
| 1120 |
|
|
coff_debug_merge_hash_table_free (&finfo.debug_merge);
|
| 1121 |
|
|
if (finfo.strtab != NULL)
|
| 1122 |
|
|
_bfd_stringtab_free (finfo.strtab);
|
| 1123 |
|
|
if (finfo.section_info != NULL)
|
| 1124 |
|
|
{
|
| 1125 |
|
|
unsigned int i;
|
| 1126 |
|
|
|
| 1127 |
|
|
for (i = 0; i < abfd->section_count; i++)
|
| 1128 |
|
|
{
|
| 1129 |
|
|
if (finfo.section_info[i].relocs != NULL)
|
| 1130 |
|
|
free (finfo.section_info[i].relocs);
|
| 1131 |
|
|
if (finfo.section_info[i].rel_hashes != NULL)
|
| 1132 |
|
|
free (finfo.section_info[i].rel_hashes);
|
| 1133 |
|
|
}
|
| 1134 |
|
|
free (finfo.section_info);
|
| 1135 |
|
|
}
|
| 1136 |
|
|
if (finfo.internal_syms != NULL)
|
| 1137 |
|
|
free (finfo.internal_syms);
|
| 1138 |
|
|
if (finfo.sec_ptrs != NULL)
|
| 1139 |
|
|
free (finfo.sec_ptrs);
|
| 1140 |
|
|
if (finfo.sym_indices != NULL)
|
| 1141 |
|
|
free (finfo.sym_indices);
|
| 1142 |
|
|
if (finfo.outsyms != NULL)
|
| 1143 |
|
|
free (finfo.outsyms);
|
| 1144 |
|
|
if (finfo.linenos != NULL)
|
| 1145 |
|
|
free (finfo.linenos);
|
| 1146 |
|
|
if (finfo.contents != NULL)
|
| 1147 |
|
|
free (finfo.contents);
|
| 1148 |
|
|
if (finfo.external_relocs != NULL)
|
| 1149 |
|
|
free (finfo.external_relocs);
|
| 1150 |
|
|
if (finfo.internal_relocs != NULL)
|
| 1151 |
|
|
free (finfo.internal_relocs);
|
| 1152 |
|
|
if (external_relocs != NULL)
|
| 1153 |
|
|
free (external_relocs);
|
| 1154 |
|
|
return false;
|
| 1155 |
|
|
}
|
| 1156 |
|
|
|
| 1157 |
|
|
/* parse out a -heap <reserved>,<commit> line */
|
| 1158 |
|
|
|
| 1159 |
|
|
static char *
|
| 1160 |
|
|
dores_com (ptr, output_bfd, heap)
|
| 1161 |
|
|
char *ptr;
|
| 1162 |
|
|
bfd *output_bfd;
|
| 1163 |
|
|
int heap;
|
| 1164 |
|
|
{
|
| 1165 |
|
|
if (coff_data(output_bfd)->pe)
|
| 1166 |
|
|
{
|
| 1167 |
|
|
int val = strtoul (ptr, &ptr, 0);
|
| 1168 |
|
|
if (heap)
|
| 1169 |
|
|
pe_data(output_bfd)->pe_opthdr.SizeOfHeapReserve =val;
|
| 1170 |
|
|
else
|
| 1171 |
|
|
pe_data(output_bfd)->pe_opthdr.SizeOfStackReserve =val;
|
| 1172 |
|
|
|
| 1173 |
|
|
if (ptr[0] == ',')
|
| 1174 |
|
|
{
|
| 1175 |
|
|
int val = strtoul (ptr+1, &ptr, 0);
|
| 1176 |
|
|
if (heap)
|
| 1177 |
|
|
pe_data(output_bfd)->pe_opthdr.SizeOfHeapCommit =val;
|
| 1178 |
|
|
else
|
| 1179 |
|
|
pe_data(output_bfd)->pe_opthdr.SizeOfStackCommit =val;
|
| 1180 |
|
|
}
|
| 1181 |
|
|
}
|
| 1182 |
|
|
return ptr;
|
| 1183 |
|
|
}
|
| 1184 |
|
|
|
| 1185 |
|
|
static char *get_name(ptr, dst)
|
| 1186 |
|
|
char *ptr;
|
| 1187 |
|
|
char **dst;
|
| 1188 |
|
|
{
|
| 1189 |
|
|
while (*ptr == ' ')
|
| 1190 |
|
|
ptr++;
|
| 1191 |
|
|
*dst = ptr;
|
| 1192 |
|
|
while (*ptr && *ptr != ' ')
|
| 1193 |
|
|
ptr++;
|
| 1194 |
|
|
*ptr = 0;
|
| 1195 |
|
|
return ptr+1;
|
| 1196 |
|
|
}
|
| 1197 |
|
|
|
| 1198 |
|
|
/* Process any magic embedded commands in a section called .drectve */
|
| 1199 |
|
|
|
| 1200 |
|
|
static int
|
| 1201 |
|
|
process_embedded_commands (output_bfd, info, abfd)
|
| 1202 |
|
|
bfd *output_bfd;
|
| 1203 |
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
| 1204 |
|
|
bfd *abfd;
|
| 1205 |
|
|
{
|
| 1206 |
|
|
asection *sec = bfd_get_section_by_name (abfd, ".drectve");
|
| 1207 |
|
|
char *s;
|
| 1208 |
|
|
char *e;
|
| 1209 |
|
|
char *copy;
|
| 1210 |
|
|
if (!sec)
|
| 1211 |
|
|
return 1;
|
| 1212 |
|
|
|
| 1213 |
|
|
copy = bfd_malloc ((size_t) sec->_raw_size);
|
| 1214 |
|
|
if (!copy)
|
| 1215 |
|
|
return 0;
|
| 1216 |
|
|
if (! bfd_get_section_contents(abfd, sec, copy, 0, sec->_raw_size))
|
| 1217 |
|
|
{
|
| 1218 |
|
|
free (copy);
|
| 1219 |
|
|
return 0;
|
| 1220 |
|
|
}
|
| 1221 |
|
|
e = copy + sec->_raw_size;
|
| 1222 |
|
|
for (s = copy; s < e ; )
|
| 1223 |
|
|
{
|
| 1224 |
|
|
if (s[0]!= '-') {
|
| 1225 |
|
|
s++;
|
| 1226 |
|
|
continue;
|
| 1227 |
|
|
}
|
| 1228 |
|
|
if (strncmp (s,"-attr", 5) == 0)
|
| 1229 |
|
|
{
|
| 1230 |
|
|
char *name;
|
| 1231 |
|
|
char *attribs;
|
| 1232 |
|
|
asection *asec;
|
| 1233 |
|
|
|
| 1234 |
|
|
int loop = 1;
|
| 1235 |
|
|
int had_write = 0;
|
| 1236 |
|
|
int had_read = 0;
|
| 1237 |
|
|
int had_exec= 0;
|
| 1238 |
|
|
int had_shared= 0;
|
| 1239 |
|
|
s += 5;
|
| 1240 |
|
|
s = get_name(s, &name);
|
| 1241 |
|
|
s = get_name(s, &attribs);
|
| 1242 |
|
|
while (loop) {
|
| 1243 |
|
|
switch (*attribs++)
|
| 1244 |
|
|
{
|
| 1245 |
|
|
case 'W':
|
| 1246 |
|
|
had_write = 1;
|
| 1247 |
|
|
break;
|
| 1248 |
|
|
case 'R':
|
| 1249 |
|
|
had_read = 1;
|
| 1250 |
|
|
break;
|
| 1251 |
|
|
case 'S':
|
| 1252 |
|
|
had_shared = 1;
|
| 1253 |
|
|
break;
|
| 1254 |
|
|
case 'X':
|
| 1255 |
|
|
had_exec = 1;
|
| 1256 |
|
|
break;
|
| 1257 |
|
|
default:
|
| 1258 |
|
|
loop = 0;
|
| 1259 |
|
|
}
|
| 1260 |
|
|
}
|
| 1261 |
|
|
asec = bfd_get_section_by_name (abfd, name);
|
| 1262 |
|
|
if (asec) {
|
| 1263 |
|
|
if (had_exec)
|
| 1264 |
|
|
asec->flags |= SEC_CODE;
|
| 1265 |
|
|
if (!had_write)
|
| 1266 |
|
|
asec->flags |= SEC_READONLY;
|
| 1267 |
|
|
}
|
| 1268 |
|
|
}
|
| 1269 |
|
|
else if (strncmp (s,"-heap", 5) == 0)
|
| 1270 |
|
|
{
|
| 1271 |
|
|
s = dores_com (s+5, output_bfd, 1);
|
| 1272 |
|
|
}
|
| 1273 |
|
|
else if (strncmp (s,"-stack", 6) == 0)
|
| 1274 |
|
|
{
|
| 1275 |
|
|
s = dores_com (s+6, output_bfd, 0);
|
| 1276 |
|
|
}
|
| 1277 |
|
|
else
|
| 1278 |
|
|
s++;
|
| 1279 |
|
|
}
|
| 1280 |
|
|
free (copy);
|
| 1281 |
|
|
return 1;
|
| 1282 |
|
|
}
|
| 1283 |
|
|
|
| 1284 |
|
|
/* Place a marker against all symbols which are used by relocations.
|
| 1285 |
|
|
This marker can be picked up by the 'do we skip this symbol ?'
|
| 1286 |
|
|
loop in _bfd_coff_link_input_bfd() and used to prevent skipping
|
| 1287 |
|
|
that symbol.
|
| 1288 |
|
|
*/
|
| 1289 |
|
|
|
| 1290 |
|
|
static void
|
| 1291 |
|
|
mark_relocs (finfo, input_bfd)
|
| 1292 |
|
|
struct coff_final_link_info * finfo;
|
| 1293 |
|
|
bfd * input_bfd;
|
| 1294 |
|
|
{
|
| 1295 |
|
|
asection * a;
|
| 1296 |
|
|
|
| 1297 |
|
|
if ((bfd_get_file_flags (input_bfd) & HAS_SYMS) == 0)
|
| 1298 |
|
|
return;
|
| 1299 |
|
|
|
| 1300 |
|
|
for (a = input_bfd->sections; a != (asection *) NULL; a = a->next)
|
| 1301 |
|
|
{
|
| 1302 |
|
|
struct internal_reloc * internal_relocs;
|
| 1303 |
|
|
struct internal_reloc * irel;
|
| 1304 |
|
|
struct internal_reloc * irelend;
|
| 1305 |
|
|
|
| 1306 |
|
|
if ((a->flags & SEC_RELOC) == 0 || a->reloc_count < 1)
|
| 1307 |
|
|
continue;
|
| 1308 |
|
|
|
| 1309 |
|
|
/* Read in the relocs. */
|
| 1310 |
|
|
internal_relocs = _bfd_coff_read_internal_relocs
|
| 1311 |
|
|
(input_bfd, a, false,
|
| 1312 |
|
|
finfo->external_relocs,
|
| 1313 |
|
|
finfo->info->relocateable,
|
| 1314 |
|
|
(finfo->info->relocateable
|
| 1315 |
|
|
? (finfo->section_info[ a->output_section->target_index ].relocs + a->output_section->reloc_count)
|
| 1316 |
|
|
: finfo->internal_relocs)
|
| 1317 |
|
|
);
|
| 1318 |
|
|
|
| 1319 |
|
|
if (internal_relocs == NULL)
|
| 1320 |
|
|
continue;
|
| 1321 |
|
|
|
| 1322 |
|
|
irel = internal_relocs;
|
| 1323 |
|
|
irelend = irel + a->reloc_count;
|
| 1324 |
|
|
|
| 1325 |
|
|
/* Place a mark in the sym_indices array (whose entries have
|
| 1326 |
|
|
been initialised to 0) for all of the symbols that are used
|
| 1327 |
|
|
in the relocation table. This will then be picked up in the
|
| 1328 |
|
|
skip/don't pass */
|
| 1329 |
|
|
|
| 1330 |
|
|
for (; irel < irelend; irel++)
|
| 1331 |
|
|
{
|
| 1332 |
|
|
finfo->sym_indices[ irel->r_symndx ] = -1;
|
| 1333 |
|
|
}
|
| 1334 |
|
|
}
|
| 1335 |
|
|
}
|
| 1336 |
|
|
|
| 1337 |
|
|
/* Link an input file into the linker output file. This function
|
| 1338 |
|
|
handles all the sections and relocations of the input file at once. */
|
| 1339 |
|
|
|
| 1340 |
|
|
boolean
|
| 1341 |
|
|
_bfd_coff_link_input_bfd (finfo, input_bfd)
|
| 1342 |
|
|
struct coff_final_link_info *finfo;
|
| 1343 |
|
|
bfd *input_bfd;
|
| 1344 |
|
|
{
|
| 1345 |
|
|
unsigned int n_tmask = coff_data (input_bfd)->local_n_tmask;
|
| 1346 |
|
|
unsigned int n_btshft = coff_data (input_bfd)->local_n_btshft;
|
| 1347 |
|
|
#if 0
|
| 1348 |
|
|
unsigned int n_btmask = coff_data (input_bfd)->local_n_btmask;
|
| 1349 |
|
|
#endif
|
| 1350 |
|
|
boolean (*adjust_symndx) PARAMS ((bfd *, struct bfd_link_info *, bfd *,
|
| 1351 |
|
|
asection *, struct internal_reloc *,
|
| 1352 |
|
|
boolean *));
|
| 1353 |
|
|
bfd *output_bfd;
|
| 1354 |
|
|
const char *strings;
|
| 1355 |
|
|
bfd_size_type syment_base;
|
| 1356 |
|
|
boolean copy, hash;
|
| 1357 |
|
|
bfd_size_type isymesz;
|
| 1358 |
|
|
bfd_size_type osymesz;
|
| 1359 |
|
|
bfd_size_type linesz;
|
| 1360 |
|
|
bfd_byte *esym;
|
| 1361 |
|
|
bfd_byte *esym_end;
|
| 1362 |
|
|
struct internal_syment *isymp;
|
| 1363 |
|
|
asection **secpp;
|
| 1364 |
|
|
long *indexp;
|
| 1365 |
|
|
unsigned long output_index;
|
| 1366 |
|
|
bfd_byte *outsym;
|
| 1367 |
|
|
struct coff_link_hash_entry **sym_hash;
|
| 1368 |
|
|
asection *o;
|
| 1369 |
|
|
|
| 1370 |
|
|
/* Move all the symbols to the output file. */
|
| 1371 |
|
|
|
| 1372 |
|
|
output_bfd = finfo->output_bfd;
|
| 1373 |
|
|
strings = NULL;
|
| 1374 |
|
|
syment_base = obj_raw_syment_count (output_bfd);
|
| 1375 |
|
|
isymesz = bfd_coff_symesz (input_bfd);
|
| 1376 |
|
|
osymesz = bfd_coff_symesz (output_bfd);
|
| 1377 |
|
|
linesz = bfd_coff_linesz (input_bfd);
|
| 1378 |
|
|
BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd));
|
| 1379 |
|
|
|
| 1380 |
|
|
copy = false;
|
| 1381 |
|
|
if (! finfo->info->keep_memory)
|
| 1382 |
|
|
copy = true;
|
| 1383 |
|
|
hash = true;
|
| 1384 |
|
|
if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
|
| 1385 |
|
|
hash = false;
|
| 1386 |
|
|
|
| 1387 |
|
|
if (! _bfd_coff_get_external_symbols (input_bfd))
|
| 1388 |
|
|
return false;
|
| 1389 |
|
|
|
| 1390 |
|
|
esym = (bfd_byte *) obj_coff_external_syms (input_bfd);
|
| 1391 |
|
|
esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz;
|
| 1392 |
|
|
isymp = finfo->internal_syms;
|
| 1393 |
|
|
secpp = finfo->sec_ptrs;
|
| 1394 |
|
|
indexp = finfo->sym_indices;
|
| 1395 |
|
|
output_index = syment_base;
|
| 1396 |
|
|
outsym = finfo->outsyms;
|
| 1397 |
|
|
|
| 1398 |
|
|
if (coff_data (output_bfd)->pe)
|
| 1399 |
|
|
{
|
| 1400 |
|
|
if (! process_embedded_commands (output_bfd, finfo->info, input_bfd))
|
| 1401 |
|
|
return false;
|
| 1402 |
|
|
}
|
| 1403 |
|
|
|
| 1404 |
|
|
/* If we are going to perform relocations and also strip/discard some symbols
|
| 1405 |
|
|
then we must make sure that we do not strip/discard those symbols that are
|
| 1406 |
|
|
going to be involved in the relocations */
|
| 1407 |
|
|
if (( finfo->info->strip != strip_none
|
| 1408 |
|
|
|| finfo->info->discard != discard_none)
|
| 1409 |
|
|
&& finfo->info->relocateable)
|
| 1410 |
|
|
{
|
| 1411 |
|
|
/* mark the symbol array as 'not-used' */
|
| 1412 |
|
|
memset (indexp, 0, obj_raw_syment_count (input_bfd) * sizeof * indexp);
|
| 1413 |
|
|
|
| 1414 |
|
|
mark_relocs (finfo, input_bfd);
|
| 1415 |
|
|
}
|
| 1416 |
|
|
|
| 1417 |
|
|
while (esym < esym_end)
|
| 1418 |
|
|
{
|
| 1419 |
|
|
struct internal_syment isym;
|
| 1420 |
|
|
enum coff_symbol_classification classification;
|
| 1421 |
|
|
boolean skip;
|
| 1422 |
|
|
boolean global;
|
| 1423 |
|
|
boolean dont_skip_symbol;
|
| 1424 |
|
|
int add;
|
| 1425 |
|
|
|
| 1426 |
|
|
bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp);
|
| 1427 |
|
|
|
| 1428 |
|
|
/* Make a copy of *isymp so that the relocate_section function
|
| 1429 |
|
|
always sees the original values. This is more reliable than
|
| 1430 |
|
|
always recomputing the symbol value even if we are stripping
|
| 1431 |
|
|
the symbol. */
|
| 1432 |
|
|
isym = *isymp;
|
| 1433 |
|
|
|
| 1434 |
|
|
classification = bfd_coff_classify_symbol (input_bfd, &isym);
|
| 1435 |
|
|
switch (classification)
|
| 1436 |
|
|
{
|
| 1437 |
|
|
default:
|
| 1438 |
|
|
abort ();
|
| 1439 |
|
|
case COFF_SYMBOL_GLOBAL:
|
| 1440 |
|
|
case COFF_SYMBOL_PE_SECTION:
|
| 1441 |
|
|
case COFF_SYMBOL_LOCAL:
|
| 1442 |
|
|
*secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum);
|
| 1443 |
|
|
break;
|
| 1444 |
|
|
case COFF_SYMBOL_COMMON:
|
| 1445 |
|
|
*secpp = bfd_com_section_ptr;
|
| 1446 |
|
|
break;
|
| 1447 |
|
|
case COFF_SYMBOL_UNDEFINED:
|
| 1448 |
|
|
*secpp = bfd_und_section_ptr;
|
| 1449 |
|
|
break;
|
| 1450 |
|
|
}
|
| 1451 |
|
|
|
| 1452 |
|
|
/* Extract the flag indicating if this symbol is used by a
|
| 1453 |
|
|
relocation. */
|
| 1454 |
|
|
if ((finfo->info->strip != strip_none
|
| 1455 |
|
|
|| finfo->info->discard != discard_none)
|
| 1456 |
|
|
&& finfo->info->relocateable)
|
| 1457 |
|
|
dont_skip_symbol = *indexp;
|
| 1458 |
|
|
else
|
| 1459 |
|
|
dont_skip_symbol = false;
|
| 1460 |
|
|
|
| 1461 |
|
|
*indexp = -1;
|
| 1462 |
|
|
|
| 1463 |
|
|
skip = false;
|
| 1464 |
|
|
global = false;
|
| 1465 |
|
|
add = 1 + isym.n_numaux;
|
| 1466 |
|
|
|
| 1467 |
|
|
/* If we are stripping all symbols, we want to skip this one. */
|
| 1468 |
|
|
if (finfo->info->strip == strip_all && ! dont_skip_symbol)
|
| 1469 |
|
|
skip = true;
|
| 1470 |
|
|
|
| 1471 |
|
|
if (! skip)
|
| 1472 |
|
|
{
|
| 1473 |
|
|
switch (classification)
|
| 1474 |
|
|
{
|
| 1475 |
|
|
default:
|
| 1476 |
|
|
abort ();
|
| 1477 |
|
|
case COFF_SYMBOL_GLOBAL:
|
| 1478 |
|
|
case COFF_SYMBOL_COMMON:
|
| 1479 |
|
|
case COFF_SYMBOL_PE_SECTION:
|
| 1480 |
|
|
/* This is a global symbol. Global symbols come at the
|
| 1481 |
|
|
end of the symbol table, so skip them for now.
|
| 1482 |
|
|
Locally defined function symbols, however, are an
|
| 1483 |
|
|
exception, and are not moved to the end. */
|
| 1484 |
|
|
global = true;
|
| 1485 |
|
|
if (! ISFCN (isym.n_type))
|
| 1486 |
|
|
skip = true;
|
| 1487 |
|
|
break;
|
| 1488 |
|
|
|
| 1489 |
|
|
case COFF_SYMBOL_UNDEFINED:
|
| 1490 |
|
|
/* Undefined symbols are left for the end. */
|
| 1491 |
|
|
global = true;
|
| 1492 |
|
|
skip = true;
|
| 1493 |
|
|
break;
|
| 1494 |
|
|
|
| 1495 |
|
|
case COFF_SYMBOL_LOCAL:
|
| 1496 |
|
|
/* This is a local symbol. Skip it if we are discarding
|
| 1497 |
|
|
local symbols. */
|
| 1498 |
|
|
if (finfo->info->discard == discard_all && ! dont_skip_symbol)
|
| 1499 |
|
|
skip = true;
|
| 1500 |
|
|
break;
|
| 1501 |
|
|
}
|
| 1502 |
|
|
}
|
| 1503 |
|
|
|
| 1504 |
|
|
#ifndef COFF_WITH_PE
|
| 1505 |
|
|
/* Skip section symbols for sections which are not going to be
|
| 1506 |
|
|
emitted, or which belong to linkonce sections that are going
|
| 1507 |
|
|
to be discarded. */
|
| 1508 |
|
|
if (!skip
|
| 1509 |
|
|
&& isym.n_sclass == C_STAT
|
| 1510 |
|
|
&& isym.n_type == T_NULL
|
| 1511 |
|
|
&& isym.n_numaux > 0)
|
| 1512 |
|
|
{
|
| 1513 |
|
|
if ((*secpp)->output_section == bfd_abs_section_ptr
|
| 1514 |
|
|
|| (*secpp)->kept_section)
|
| 1515 |
|
|
skip = true;
|
| 1516 |
|
|
}
|
| 1517 |
|
|
#endif
|
| 1518 |
|
|
|
| 1519 |
|
|
/* If we stripping debugging symbols, and this is a debugging
|
| 1520 |
|
|
symbol, then skip it. FIXME: gas sets the section to N_ABS
|
| 1521 |
|
|
for some types of debugging symbols; I don't know if this is
|
| 1522 |
|
|
a bug or not. In any case, we handle it here. */
|
| 1523 |
|
|
if (! skip
|
| 1524 |
|
|
&& finfo->info->strip == strip_debugger
|
| 1525 |
|
|
&& ! dont_skip_symbol
|
| 1526 |
|
|
&& (isym.n_scnum == N_DEBUG
|
| 1527 |
|
|
|| (isym.n_scnum == N_ABS
|
| 1528 |
|
|
&& (isym.n_sclass == C_AUTO
|
| 1529 |
|
|
|| isym.n_sclass == C_REG
|
| 1530 |
|
|
|| isym.n_sclass == C_MOS
|
| 1531 |
|
|
|| isym.n_sclass == C_MOE
|
| 1532 |
|
|
|| isym.n_sclass == C_MOU
|
| 1533 |
|
|
|| isym.n_sclass == C_ARG
|
| 1534 |
|
|
|| isym.n_sclass == C_REGPARM
|
| 1535 |
|
|
|| isym.n_sclass == C_FIELD
|
| 1536 |
|
|
|| isym.n_sclass == C_EOS))))
|
| 1537 |
|
|
skip = true;
|
| 1538 |
|
|
|
| 1539 |
|
|
/* If some symbols are stripped based on the name, work out the
|
| 1540 |
|
|
name and decide whether to skip this symbol. */
|
| 1541 |
|
|
if (! skip
|
| 1542 |
|
|
&& (finfo->info->strip == strip_some
|
| 1543 |
|
|
|| finfo->info->discard == discard_l))
|
| 1544 |
|
|
{
|
| 1545 |
|
|
const char *name;
|
| 1546 |
|
|
char buf[SYMNMLEN + 1];
|
| 1547 |
|
|
|
| 1548 |
|
|
name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf);
|
| 1549 |
|
|
if (name == NULL)
|
| 1550 |
|
|
return false;
|
| 1551 |
|
|
|
| 1552 |
|
|
if (! dont_skip_symbol
|
| 1553 |
|
|
&& ((finfo->info->strip == strip_some
|
| 1554 |
|
|
&& (bfd_hash_lookup (finfo->info->keep_hash, name, false,
|
| 1555 |
|
|
false) == NULL))
|
| 1556 |
|
|
|| (! global
|
| 1557 |
|
|
&& finfo->info->discard == discard_l
|
| 1558 |
|
|
&& bfd_is_local_label_name (input_bfd, name))))
|
| 1559 |
|
|
skip = true;
|
| 1560 |
|
|
}
|
| 1561 |
|
|
|
| 1562 |
|
|
/* If this is an enum, struct, or union tag, see if we have
|
| 1563 |
|
|
already output an identical type. */
|
| 1564 |
|
|
if (! skip
|
| 1565 |
|
|
&& (finfo->output_bfd->flags & BFD_TRADITIONAL_FORMAT) == 0
|
| 1566 |
|
|
&& (isym.n_sclass == C_ENTAG
|
| 1567 |
|
|
|| isym.n_sclass == C_STRTAG
|
| 1568 |
|
|
|| isym.n_sclass == C_UNTAG)
|
| 1569 |
|
|
&& isym.n_numaux == 1)
|
| 1570 |
|
|
{
|
| 1571 |
|
|
const char *name;
|
| 1572 |
|
|
char buf[SYMNMLEN + 1];
|
| 1573 |
|
|
struct coff_debug_merge_hash_entry *mh;
|
| 1574 |
|
|
struct coff_debug_merge_type *mt;
|
| 1575 |
|
|
union internal_auxent aux;
|
| 1576 |
|
|
struct coff_debug_merge_element **epp;
|
| 1577 |
|
|
bfd_byte *esl, *eslend;
|
| 1578 |
|
|
struct internal_syment *islp;
|
| 1579 |
|
|
|
| 1580 |
|
|
name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf);
|
| 1581 |
|
|
if (name == NULL)
|
| 1582 |
|
|
return false;
|
| 1583 |
|
|
|
| 1584 |
|
|
/* Ignore fake names invented by compiler; treat them all as
|
| 1585 |
|
|
the same name. */
|
| 1586 |
|
|
if (*name == '~' || *name == '.' || *name == '$'
|
| 1587 |
|
|
|| (*name == bfd_get_symbol_leading_char (input_bfd)
|
| 1588 |
|
|
&& (name[1] == '~' || name[1] == '.' || name[1] == '$')))
|
| 1589 |
|
|
name = "";
|
| 1590 |
|
|
|
| 1591 |
|
|
mh = coff_debug_merge_hash_lookup (&finfo->debug_merge, name,
|
| 1592 |
|
|
true, true);
|
| 1593 |
|
|
if (mh == NULL)
|
| 1594 |
|
|
return false;
|
| 1595 |
|
|
|
| 1596 |
|
|
/* Allocate memory to hold type information. If this turns
|
| 1597 |
|
|
out to be a duplicate, we pass this address to
|
| 1598 |
|
|
bfd_release. */
|
| 1599 |
|
|
mt = ((struct coff_debug_merge_type *)
|
| 1600 |
|
|
bfd_alloc (input_bfd,
|
| 1601 |
|
|
sizeof (struct coff_debug_merge_type)));
|
| 1602 |
|
|
if (mt == NULL)
|
| 1603 |
|
|
return false;
|
| 1604 |
|
|
mt->class = isym.n_sclass;
|
| 1605 |
|
|
|
| 1606 |
|
|
/* Pick up the aux entry, which points to the end of the tag
|
| 1607 |
|
|
entries. */
|
| 1608 |
|
|
bfd_coff_swap_aux_in (input_bfd, (PTR) (esym + isymesz),
|
| 1609 |
|
|
isym.n_type, isym.n_sclass, 0, isym.n_numaux,
|
| 1610 |
|
|
(PTR) &aux);
|
| 1611 |
|
|
|
| 1612 |
|
|
/* Gather the elements. */
|
| 1613 |
|
|
epp = &mt->elements;
|
| 1614 |
|
|
mt->elements = NULL;
|
| 1615 |
|
|
islp = isymp + 2;
|
| 1616 |
|
|
esl = esym + 2 * isymesz;
|
| 1617 |
|
|
eslend = ((bfd_byte *) obj_coff_external_syms (input_bfd)
|
| 1618 |
|
|
+ aux.x_sym.x_fcnary.x_fcn.x_endndx.l * isymesz);
|
| 1619 |
|
|
while (esl < eslend)
|
| 1620 |
|
|
{
|
| 1621 |
|
|
const char *elename;
|
| 1622 |
|
|
char elebuf[SYMNMLEN + 1];
|
| 1623 |
|
|
char *name_copy;
|
| 1624 |
|
|
|
| 1625 |
|
|
bfd_coff_swap_sym_in (input_bfd, (PTR) esl, (PTR) islp);
|
| 1626 |
|
|
|
| 1627 |
|
|
*epp = ((struct coff_debug_merge_element *)
|
| 1628 |
|
|
bfd_alloc (input_bfd,
|
| 1629 |
|
|
sizeof (struct coff_debug_merge_element)));
|
| 1630 |
|
|
if (*epp == NULL)
|
| 1631 |
|
|
return false;
|
| 1632 |
|
|
|
| 1633 |
|
|
elename = _bfd_coff_internal_syment_name (input_bfd, islp,
|
| 1634 |
|
|
elebuf);
|
| 1635 |
|
|
if (elename == NULL)
|
| 1636 |
|
|
return false;
|
| 1637 |
|
|
|
| 1638 |
|
|
name_copy = (char *) bfd_alloc (input_bfd,
|
| 1639 |
|
|
strlen (elename) + 1);
|
| 1640 |
|
|
if (name_copy == NULL)
|
| 1641 |
|
|
return false;
|
| 1642 |
|
|
strcpy (name_copy, elename);
|
| 1643 |
|
|
|
| 1644 |
|
|
(*epp)->name = name_copy;
|
| 1645 |
|
|
(*epp)->type = islp->n_type;
|
| 1646 |
|
|
(*epp)->tagndx = 0;
|
| 1647 |
|
|
if (islp->n_numaux >= 1
|
| 1648 |
|
|
&& islp->n_type != T_NULL
|
| 1649 |
|
|
&& islp->n_sclass != C_EOS)
|
| 1650 |
|
|
{
|
| 1651 |
|
|
union internal_auxent eleaux;
|
| 1652 |
|
|
long indx;
|
| 1653 |
|
|
|
| 1654 |
|
|
bfd_coff_swap_aux_in (input_bfd, (PTR) (esl + isymesz),
|
| 1655 |
|
|
islp->n_type, islp->n_sclass, 0,
|
| 1656 |
|
|
islp->n_numaux, (PTR) &eleaux);
|
| 1657 |
|
|
indx = eleaux.x_sym.x_tagndx.l;
|
| 1658 |
|
|
|
| 1659 |
|
|
/* FIXME: If this tagndx entry refers to a symbol
|
| 1660 |
|
|
defined later in this file, we just ignore it.
|
| 1661 |
|
|
Handling this correctly would be tedious, and may
|
| 1662 |
|
|
not be required. */
|
| 1663 |
|
|
|
| 1664 |
|
|
if (indx > 0
|
| 1665 |
|
|
&& (indx
|
| 1666 |
|
|
< ((esym -
|
| 1667 |
|
|
(bfd_byte *) obj_coff_external_syms (input_bfd))
|
| 1668 |
|
|
/ (long) isymesz)))
|
| 1669 |
|
|
{
|
| 1670 |
|
|
(*epp)->tagndx = finfo->sym_indices[indx];
|
| 1671 |
|
|
if ((*epp)->tagndx < 0)
|
| 1672 |
|
|
(*epp)->tagndx = 0;
|
| 1673 |
|
|
}
|
| 1674 |
|
|
}
|
| 1675 |
|
|
epp = &(*epp)->next;
|
| 1676 |
|
|
*epp = NULL;
|
| 1677 |
|
|
|
| 1678 |
|
|
esl += (islp->n_numaux + 1) * isymesz;
|
| 1679 |
|
|
islp += islp->n_numaux + 1;
|
| 1680 |
|
|
}
|
| 1681 |
|
|
|
| 1682 |
|
|
/* See if we already have a definition which matches this
|
| 1683 |
|
|
type. We always output the type if it has no elements,
|
| 1684 |
|
|
for simplicity. */
|
| 1685 |
|
|
if (mt->elements == NULL)
|
| 1686 |
|
|
bfd_release (input_bfd, (PTR) mt);
|
| 1687 |
|
|
else
|
| 1688 |
|
|
{
|
| 1689 |
|
|
struct coff_debug_merge_type *mtl;
|
| 1690 |
|
|
|
| 1691 |
|
|
for (mtl = mh->types; mtl != NULL; mtl = mtl->next)
|
| 1692 |
|
|
{
|
| 1693 |
|
|
struct coff_debug_merge_element *me, *mel;
|
| 1694 |
|
|
|
| 1695 |
|
|
if (mtl->class != mt->class)
|
| 1696 |
|
|
continue;
|
| 1697 |
|
|
|
| 1698 |
|
|
for (me = mt->elements, mel = mtl->elements;
|
| 1699 |
|
|
me != NULL && mel != NULL;
|
| 1700 |
|
|
me = me->next, mel = mel->next)
|
| 1701 |
|
|
{
|
| 1702 |
|
|
if (strcmp (me->name, mel->name) != 0
|
| 1703 |
|
|
|| me->type != mel->type
|
| 1704 |
|
|
|| me->tagndx != mel->tagndx)
|
| 1705 |
|
|
break;
|
| 1706 |
|
|
}
|
| 1707 |
|
|
|
| 1708 |
|
|
if (me == NULL && mel == NULL)
|
| 1709 |
|
|
break;
|
| 1710 |
|
|
}
|
| 1711 |
|
|
|
| 1712 |
|
|
if (mtl == NULL || (bfd_size_type) mtl->indx >= syment_base)
|
| 1713 |
|
|
{
|
| 1714 |
|
|
/* This is the first definition of this type. */
|
| 1715 |
|
|
mt->indx = output_index;
|
| 1716 |
|
|
mt->next = mh->types;
|
| 1717 |
|
|
mh->types = mt;
|
| 1718 |
|
|
}
|
| 1719 |
|
|
else
|
| 1720 |
|
|
{
|
| 1721 |
|
|
/* This is a redefinition which can be merged. */
|
| 1722 |
|
|
bfd_release (input_bfd, (PTR) mt);
|
| 1723 |
|
|
*indexp = mtl->indx;
|
| 1724 |
|
|
add = (eslend - esym) / isymesz;
|
| 1725 |
|
|
skip = true;
|
| 1726 |
|
|
}
|
| 1727 |
|
|
}
|
| 1728 |
|
|
}
|
| 1729 |
|
|
|
| 1730 |
|
|
/* We now know whether we are to skip this symbol or not. */
|
| 1731 |
|
|
if (! skip)
|
| 1732 |
|
|
{
|
| 1733 |
|
|
/* Adjust the symbol in order to output it. */
|
| 1734 |
|
|
|
| 1735 |
|
|
if (isym._n._n_n._n_zeroes == 0
|
| 1736 |
|
|
&& isym._n._n_n._n_offset != 0)
|
| 1737 |
|
|
{
|
| 1738 |
|
|
const char *name;
|
| 1739 |
|
|
bfd_size_type indx;
|
| 1740 |
|
|
|
| 1741 |
|
|
/* This symbol has a long name. Enter it in the string
|
| 1742 |
|
|
table we are building. Note that we do not check
|
| 1743 |
|
|
bfd_coff_symname_in_debug. That is only true for
|
| 1744 |
|
|
XCOFF, and XCOFF requires different linking code
|
| 1745 |
|
|
anyhow. */
|
| 1746 |
|
|
name = _bfd_coff_internal_syment_name (input_bfd, &isym,
|
| 1747 |
|
|
(char *) NULL);
|
| 1748 |
|
|
if (name == NULL)
|
| 1749 |
|
|
return false;
|
| 1750 |
|
|
indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy);
|
| 1751 |
|
|
if (indx == (bfd_size_type) -1)
|
| 1752 |
|
|
return false;
|
| 1753 |
|
|
isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx;
|
| 1754 |
|
|
}
|
| 1755 |
|
|
|
| 1756 |
|
|
switch (isym.n_sclass)
|
| 1757 |
|
|
{
|
| 1758 |
|
|
case C_AUTO:
|
| 1759 |
|
|
case C_MOS:
|
| 1760 |
|
|
case C_EOS:
|
| 1761 |
|
|
case C_MOE:
|
| 1762 |
|
|
case C_MOU:
|
| 1763 |
|
|
case C_UNTAG:
|
| 1764 |
|
|
case C_STRTAG:
|
| 1765 |
|
|
case C_ENTAG:
|
| 1766 |
|
|
case C_TPDEF:
|
| 1767 |
|
|
case C_ARG:
|
| 1768 |
|
|
case C_USTATIC:
|
| 1769 |
|
|
case C_REG:
|
| 1770 |
|
|
case C_REGPARM:
|
| 1771 |
|
|
case C_FIELD:
|
| 1772 |
|
|
/* The symbol value should not be modified. */
|
| 1773 |
|
|
break;
|
| 1774 |
|
|
|
| 1775 |
|
|
case C_FCN:
|
| 1776 |
|
|
if (obj_pe (input_bfd)
|
| 1777 |
|
|
&& strcmp (isym.n_name, ".bf") != 0
|
| 1778 |
|
|
&& isym.n_scnum > 0)
|
| 1779 |
|
|
{
|
| 1780 |
|
|
/* For PE, .lf and .ef get their value left alone,
|
| 1781 |
|
|
while .bf gets relocated. However, they all have
|
| 1782 |
|
|
"real" section numbers, and need to be moved into
|
| 1783 |
|
|
the new section. */
|
| 1784 |
|
|
isym.n_scnum = (*secpp)->output_section->target_index;
|
| 1785 |
|
|
break;
|
| 1786 |
|
|
}
|
| 1787 |
|
|
/* Fall through. */
|
| 1788 |
|
|
default:
|
| 1789 |
|
|
case C_LABEL: /* Not completely sure about these 2 */
|
| 1790 |
|
|
case C_EXTDEF:
|
| 1791 |
|
|
case C_BLOCK:
|
| 1792 |
|
|
case C_EFCN:
|
| 1793 |
|
|
case C_NULL:
|
| 1794 |
|
|
case C_EXT:
|
| 1795 |
|
|
case C_STAT:
|
| 1796 |
|
|
case C_SECTION:
|
| 1797 |
|
|
case C_NT_WEAK:
|
| 1798 |
|
|
/* Compute new symbol location. */
|
| 1799 |
|
|
if (isym.n_scnum > 0)
|
| 1800 |
|
|
{
|
| 1801 |
|
|
isym.n_scnum = (*secpp)->output_section->target_index;
|
| 1802 |
|
|
isym.n_value += (*secpp)->output_offset;
|
| 1803 |
|
|
if (! obj_pe (input_bfd))
|
| 1804 |
|
|
isym.n_value -= (*secpp)->vma;
|
| 1805 |
|
|
if (! obj_pe (finfo->output_bfd))
|
| 1806 |
|
|
isym.n_value += (*secpp)->output_section->vma;
|
| 1807 |
|
|
}
|
| 1808 |
|
|
break;
|
| 1809 |
|
|
|
| 1810 |
|
|
case C_FILE:
|
| 1811 |
|
|
/* The value of a C_FILE symbol is the symbol index of
|
| 1812 |
|
|
the next C_FILE symbol. The value of the last C_FILE
|
| 1813 |
|
|
symbol is the symbol index to the first external
|
| 1814 |
|
|
symbol (actually, coff_renumber_symbols does not get
|
| 1815 |
|
|
this right--it just sets the value of the last C_FILE
|
| 1816 |
|
|
symbol to zero--and nobody has ever complained about
|
| 1817 |
|
|
it). We try to get this right, below, just before we
|
| 1818 |
|
|
write the symbols out, but in the general case we may
|
| 1819 |
|
|
have to write the symbol out twice. */
|
| 1820 |
|
|
|
| 1821 |
|
|
if (finfo->last_file_index != -1
|
| 1822 |
|
|
&& finfo->last_file.n_value != (long) output_index)
|
| 1823 |
|
|
{
|
| 1824 |
|
|
/* We must correct the value of the last C_FILE
|
| 1825 |
|
|
entry. */
|
| 1826 |
|
|
finfo->last_file.n_value = output_index;
|
| 1827 |
|
|
if ((bfd_size_type) finfo->last_file_index >= syment_base)
|
| 1828 |
|
|
{
|
| 1829 |
|
|
/* The last C_FILE symbol is in this input file. */
|
| 1830 |
|
|
bfd_coff_swap_sym_out (output_bfd,
|
| 1831 |
|
|
(PTR) &finfo->last_file,
|
| 1832 |
|
|
(PTR) (finfo->outsyms
|
| 1833 |
|
|
+ ((finfo->last_file_index
|
| 1834 |
|
|
- syment_base)
|
| 1835 |
|
|
* osymesz)));
|
| 1836 |
|
|
}
|
| 1837 |
|
|
else
|
| 1838 |
|
|
{
|
| 1839 |
|
|
/* We have already written out the last C_FILE
|
| 1840 |
|
|
symbol. We need to write it out again. We
|
| 1841 |
|
|
borrow *outsym temporarily. */
|
| 1842 |
|
|
bfd_coff_swap_sym_out (output_bfd,
|
| 1843 |
|
|
(PTR) &finfo->last_file,
|
| 1844 |
|
|
(PTR) outsym);
|
| 1845 |
|
|
if (bfd_seek (output_bfd,
|
| 1846 |
|
|
(obj_sym_filepos (output_bfd)
|
| 1847 |
|
|
+ finfo->last_file_index * osymesz),
|
| 1848 |
|
|
SEEK_SET) != 0
|
| 1849 |
|
|
|| (bfd_write (outsym, osymesz, 1, output_bfd)
|
| 1850 |
|
|
!= osymesz))
|
| 1851 |
|
|
return false;
|
| 1852 |
|
|
}
|
| 1853 |
|
|
}
|
| 1854 |
|
|
|
| 1855 |
|
|
finfo->last_file_index = output_index;
|
| 1856 |
|
|
finfo->last_file = isym;
|
| 1857 |
|
|
break;
|
| 1858 |
|
|
}
|
| 1859 |
|
|
|
| 1860 |
|
|
/* If doing task linking, convert normal global function symbols to
|
| 1861 |
|
|
static functions. */
|
| 1862 |
|
|
if (finfo->info->task_link && IS_EXTERNAL (input_bfd, isym))
|
| 1863 |
|
|
isym.n_sclass = C_STAT;
|
| 1864 |
|
|
|
| 1865 |
|
|
/* Output the symbol. */
|
| 1866 |
|
|
|
| 1867 |
|
|
bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym);
|
| 1868 |
|
|
|
| 1869 |
|
|
*indexp = output_index;
|
| 1870 |
|
|
|
| 1871 |
|
|
if (global)
|
| 1872 |
|
|
{
|
| 1873 |
|
|
long indx;
|
| 1874 |
|
|
struct coff_link_hash_entry *h;
|
| 1875 |
|
|
|
| 1876 |
|
|
indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd))
|
| 1877 |
|
|
/ isymesz);
|
| 1878 |
|
|
h = obj_coff_sym_hashes (input_bfd)[indx];
|
| 1879 |
|
|
if (h == NULL)
|
| 1880 |
|
|
{
|
| 1881 |
|
|
/* This can happen if there were errors earlier in
|
| 1882 |
|
|
the link. */
|
| 1883 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 1884 |
|
|
return false;
|
| 1885 |
|
|
}
|
| 1886 |
|
|
h->indx = output_index;
|
| 1887 |
|
|
}
|
| 1888 |
|
|
|
| 1889 |
|
|
output_index += add;
|
| 1890 |
|
|
outsym += add * osymesz;
|
| 1891 |
|
|
}
|
| 1892 |
|
|
|
| 1893 |
|
|
esym += add * isymesz;
|
| 1894 |
|
|
isymp += add;
|
| 1895 |
|
|
++secpp;
|
| 1896 |
|
|
++indexp;
|
| 1897 |
|
|
for (--add; add > 0; --add)
|
| 1898 |
|
|
{
|
| 1899 |
|
|
*secpp++ = NULL;
|
| 1900 |
|
|
*indexp++ = -1;
|
| 1901 |
|
|
}
|
| 1902 |
|
|
}
|
| 1903 |
|
|
|
| 1904 |
|
|
/* Fix up the aux entries. This must be done in a separate pass,
|
| 1905 |
|
|
because we don't know the correct symbol indices until we have
|
| 1906 |
|
|
already decided which symbols we are going to keep. */
|
| 1907 |
|
|
|
| 1908 |
|
|
esym = (bfd_byte *) obj_coff_external_syms (input_bfd);
|
| 1909 |
|
|
esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz;
|
| 1910 |
|
|
isymp = finfo->internal_syms;
|
| 1911 |
|
|
indexp = finfo->sym_indices;
|
| 1912 |
|
|
sym_hash = obj_coff_sym_hashes (input_bfd);
|
| 1913 |
|
|
outsym = finfo->outsyms;
|
| 1914 |
|
|
while (esym < esym_end)
|
| 1915 |
|
|
{
|
| 1916 |
|
|
int add;
|
| 1917 |
|
|
|
| 1918 |
|
|
add = 1 + isymp->n_numaux;
|
| 1919 |
|
|
|
| 1920 |
|
|
if ((*indexp < 0
|
| 1921 |
|
|
|| (bfd_size_type) *indexp < syment_base)
|
| 1922 |
|
|
&& (*sym_hash == NULL
|
| 1923 |
|
|
|| (*sym_hash)->auxbfd != input_bfd))
|
| 1924 |
|
|
esym += add * isymesz;
|
| 1925 |
|
|
else
|
| 1926 |
|
|
{
|
| 1927 |
|
|
struct coff_link_hash_entry *h;
|
| 1928 |
|
|
int i;
|
| 1929 |
|
|
|
| 1930 |
|
|
h = NULL;
|
| 1931 |
|
|
if (*indexp < 0)
|
| 1932 |
|
|
{
|
| 1933 |
|
|
h = *sym_hash;
|
| 1934 |
|
|
|
| 1935 |
|
|
/* The m68k-motorola-sysv assembler will sometimes
|
| 1936 |
|
|
generate two symbols with the same name, but only one
|
| 1937 |
|
|
will have aux entries. */
|
| 1938 |
|
|
BFD_ASSERT (isymp->n_numaux == 0
|
| 1939 |
|
|
|| h->numaux == isymp->n_numaux);
|
| 1940 |
|
|
}
|
| 1941 |
|
|
|
| 1942 |
|
|
esym += isymesz;
|
| 1943 |
|
|
|
| 1944 |
|
|
if (h == NULL)
|
| 1945 |
|
|
outsym += osymesz;
|
| 1946 |
|
|
|
| 1947 |
|
|
/* Handle the aux entries. This handling is based on
|
| 1948 |
|
|
coff_pointerize_aux. I don't know if it always correct. */
|
| 1949 |
|
|
for (i = 0; i < isymp->n_numaux && esym < esym_end; i++)
|
| 1950 |
|
|
{
|
| 1951 |
|
|
union internal_auxent aux;
|
| 1952 |
|
|
union internal_auxent *auxp;
|
| 1953 |
|
|
|
| 1954 |
|
|
if (h != NULL)
|
| 1955 |
|
|
auxp = h->aux + i;
|
| 1956 |
|
|
else
|
| 1957 |
|
|
{
|
| 1958 |
|
|
bfd_coff_swap_aux_in (input_bfd, (PTR) esym, isymp->n_type,
|
| 1959 |
|
|
isymp->n_sclass, i, isymp->n_numaux,
|
| 1960 |
|
|
(PTR) &aux);
|
| 1961 |
|
|
auxp = &aux;
|
| 1962 |
|
|
}
|
| 1963 |
|
|
|
| 1964 |
|
|
if (isymp->n_sclass == C_FILE)
|
| 1965 |
|
|
{
|
| 1966 |
|
|
/* If this is a long filename, we must put it in the
|
| 1967 |
|
|
string table. */
|
| 1968 |
|
|
if (auxp->x_file.x_n.x_zeroes == 0
|
| 1969 |
|
|
&& auxp->x_file.x_n.x_offset != 0)
|
| 1970 |
|
|
{
|
| 1971 |
|
|
const char *filename;
|
| 1972 |
|
|
bfd_size_type indx;
|
| 1973 |
|
|
|
| 1974 |
|
|
BFD_ASSERT (auxp->x_file.x_n.x_offset
|
| 1975 |
|
|
>= STRING_SIZE_SIZE);
|
| 1976 |
|
|
if (strings == NULL)
|
| 1977 |
|
|
{
|
| 1978 |
|
|
strings = _bfd_coff_read_string_table (input_bfd);
|
| 1979 |
|
|
if (strings == NULL)
|
| 1980 |
|
|
return false;
|
| 1981 |
|
|
}
|
| 1982 |
|
|
filename = strings + auxp->x_file.x_n.x_offset;
|
| 1983 |
|
|
indx = _bfd_stringtab_add (finfo->strtab, filename,
|
| 1984 |
|
|
hash, copy);
|
| 1985 |
|
|
if (indx == (bfd_size_type) -1)
|
| 1986 |
|
|
return false;
|
| 1987 |
|
|
auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE + indx;
|
| 1988 |
|
|
}
|
| 1989 |
|
|
}
|
| 1990 |
|
|
else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL)
|
| 1991 |
|
|
{
|
| 1992 |
|
|
unsigned long indx;
|
| 1993 |
|
|
|
| 1994 |
|
|
if (ISFCN (isymp->n_type)
|
| 1995 |
|
|
|| ISTAG (isymp->n_sclass)
|
| 1996 |
|
|
|| isymp->n_sclass == C_BLOCK
|
| 1997 |
|
|
|| isymp->n_sclass == C_FCN)
|
| 1998 |
|
|
{
|
| 1999 |
|
|
indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l;
|
| 2000 |
|
|
if (indx > 0
|
| 2001 |
|
|
&& indx < obj_raw_syment_count (input_bfd))
|
| 2002 |
|
|
{
|
| 2003 |
|
|
/* We look forward through the symbol for
|
| 2004 |
|
|
the index of the next symbol we are going
|
| 2005 |
|
|
to include. I don't know if this is
|
| 2006 |
|
|
entirely right. */
|
| 2007 |
|
|
while ((finfo->sym_indices[indx] < 0
|
| 2008 |
|
|
|| ((bfd_size_type) finfo->sym_indices[indx]
|
| 2009 |
|
|
< syment_base))
|
| 2010 |
|
|
&& indx < obj_raw_syment_count (input_bfd))
|
| 2011 |
|
|
++indx;
|
| 2012 |
|
|
if (indx >= obj_raw_syment_count (input_bfd))
|
| 2013 |
|
|
indx = output_index;
|
| 2014 |
|
|
else
|
| 2015 |
|
|
indx = finfo->sym_indices[indx];
|
| 2016 |
|
|
auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx;
|
| 2017 |
|
|
}
|
| 2018 |
|
|
}
|
| 2019 |
|
|
|
| 2020 |
|
|
indx = auxp->x_sym.x_tagndx.l;
|
| 2021 |
|
|
if (indx > 0 && indx < obj_raw_syment_count (input_bfd))
|
| 2022 |
|
|
{
|
| 2023 |
|
|
long symindx;
|
| 2024 |
|
|
|
| 2025 |
|
|
symindx = finfo->sym_indices[indx];
|
| 2026 |
|
|
if (symindx < 0)
|
| 2027 |
|
|
auxp->x_sym.x_tagndx.l = 0;
|
| 2028 |
|
|
else
|
| 2029 |
|
|
auxp->x_sym.x_tagndx.l = symindx;
|
| 2030 |
|
|
}
|
| 2031 |
|
|
|
| 2032 |
|
|
/* The .bf symbols are supposed to be linked through
|
| 2033 |
|
|
the endndx field. We need to carry this list
|
| 2034 |
|
|
across object files. */
|
| 2035 |
|
|
if (i == 0
|
| 2036 |
|
|
&& h == NULL
|
| 2037 |
|
|
&& isymp->n_sclass == C_FCN
|
| 2038 |
|
|
&& (isymp->_n._n_n._n_zeroes != 0
|
| 2039 |
|
|
|| isymp->_n._n_n._n_offset == 0)
|
| 2040 |
|
|
&& isymp->_n._n_name[0] == '.'
|
| 2041 |
|
|
&& isymp->_n._n_name[1] == 'b'
|
| 2042 |
|
|
&& isymp->_n._n_name[2] == 'f'
|
| 2043 |
|
|
&& isymp->_n._n_name[3] == '\0')
|
| 2044 |
|
|
{
|
| 2045 |
|
|
if (finfo->last_bf_index != -1)
|
| 2046 |
|
|
{
|
| 2047 |
|
|
finfo->last_bf.x_sym.x_fcnary.x_fcn.x_endndx.l =
|
| 2048 |
|
|
*indexp;
|
| 2049 |
|
|
|
| 2050 |
|
|
if ((bfd_size_type) finfo->last_bf_index
|
| 2051 |
|
|
>= syment_base)
|
| 2052 |
|
|
{
|
| 2053 |
|
|
PTR auxout;
|
| 2054 |
|
|
|
| 2055 |
|
|
/* The last .bf symbol is in this input
|
| 2056 |
|
|
file. This will only happen if the
|
| 2057 |
|
|
assembler did not set up the .bf
|
| 2058 |
|
|
endndx symbols correctly. */
|
| 2059 |
|
|
auxout = (PTR) (finfo->outsyms
|
| 2060 |
|
|
+ ((finfo->last_bf_index
|
| 2061 |
|
|
- syment_base)
|
| 2062 |
|
|
* osymesz));
|
| 2063 |
|
|
bfd_coff_swap_aux_out (output_bfd,
|
| 2064 |
|
|
(PTR) &finfo->last_bf,
|
| 2065 |
|
|
isymp->n_type,
|
| 2066 |
|
|
isymp->n_sclass,
|
| 2067 |
|
|
0, isymp->n_numaux,
|
| 2068 |
|
|
auxout);
|
| 2069 |
|
|
}
|
| 2070 |
|
|
else
|
| 2071 |
|
|
{
|
| 2072 |
|
|
/* We have already written out the last
|
| 2073 |
|
|
.bf aux entry. We need to write it
|
| 2074 |
|
|
out again. We borrow *outsym
|
| 2075 |
|
|
temporarily. FIXME: This case should
|
| 2076 |
|
|
be made faster. */
|
| 2077 |
|
|
bfd_coff_swap_aux_out (output_bfd,
|
| 2078 |
|
|
(PTR) &finfo->last_bf,
|
| 2079 |
|
|
isymp->n_type,
|
| 2080 |
|
|
isymp->n_sclass,
|
| 2081 |
|
|
0, isymp->n_numaux,
|
| 2082 |
|
|
(PTR) outsym);
|
| 2083 |
|
|
if (bfd_seek (output_bfd,
|
| 2084 |
|
|
(obj_sym_filepos (output_bfd)
|
| 2085 |
|
|
+ finfo->last_bf_index * osymesz),
|
| 2086 |
|
|
SEEK_SET) != 0
|
| 2087 |
|
|
|| bfd_write (outsym, osymesz, 1,
|
| 2088 |
|
|
output_bfd) != osymesz)
|
| 2089 |
|
|
return false;
|
| 2090 |
|
|
}
|
| 2091 |
|
|
}
|
| 2092 |
|
|
|
| 2093 |
|
|
if (auxp->x_sym.x_fcnary.x_fcn.x_endndx.l != 0)
|
| 2094 |
|
|
finfo->last_bf_index = -1;
|
| 2095 |
|
|
else
|
| 2096 |
|
|
{
|
| 2097 |
|
|
/* The endndx field of this aux entry must
|
| 2098 |
|
|
be updated with the symbol number of the
|
| 2099 |
|
|
next .bf symbol. */
|
| 2100 |
|
|
finfo->last_bf = *auxp;
|
| 2101 |
|
|
finfo->last_bf_index = (((outsym - finfo->outsyms)
|
| 2102 |
|
|
/ osymesz)
|
| 2103 |
|
|
+ syment_base);
|
| 2104 |
|
|
}
|
| 2105 |
|
|
}
|
| 2106 |
|
|
}
|
| 2107 |
|
|
|
| 2108 |
|
|
if (h == NULL)
|
| 2109 |
|
|
{
|
| 2110 |
|
|
bfd_coff_swap_aux_out (output_bfd, (PTR) auxp, isymp->n_type,
|
| 2111 |
|
|
isymp->n_sclass, i, isymp->n_numaux,
|
| 2112 |
|
|
(PTR) outsym);
|
| 2113 |
|
|
outsym += osymesz;
|
| 2114 |
|
|
}
|
| 2115 |
|
|
|
| 2116 |
|
|
esym += isymesz;
|
| 2117 |
|
|
}
|
| 2118 |
|
|
}
|
| 2119 |
|
|
|
| 2120 |
|
|
indexp += add;
|
| 2121 |
|
|
isymp += add;
|
| 2122 |
|
|
sym_hash += add;
|
| 2123 |
|
|
}
|
| 2124 |
|
|
|
| 2125 |
|
|
/* Relocate the line numbers, unless we are stripping them. */
|
| 2126 |
|
|
if (finfo->info->strip == strip_none
|
| 2127 |
|
|
|| finfo->info->strip == strip_some)
|
| 2128 |
|
|
{
|
| 2129 |
|
|
for (o = input_bfd->sections; o != NULL; o = o->next)
|
| 2130 |
|
|
{
|
| 2131 |
|
|
bfd_vma offset;
|
| 2132 |
|
|
bfd_byte *eline;
|
| 2133 |
|
|
bfd_byte *elineend;
|
| 2134 |
|
|
bfd_byte *oeline;
|
| 2135 |
|
|
boolean skipping;
|
| 2136 |
|
|
|
| 2137 |
|
|
/* FIXME: If SEC_HAS_CONTENTS is not for the section, then
|
| 2138 |
|
|
build_link_order in ldwrite.c will not have created a
|
| 2139 |
|
|
link order, which means that we will not have seen this
|
| 2140 |
|
|
input section in _bfd_coff_final_link, which means that
|
| 2141 |
|
|
we will not have allocated space for the line numbers of
|
| 2142 |
|
|
this section. I don't think line numbers can be
|
| 2143 |
|
|
meaningful for a section which does not have
|
| 2144 |
|
|
SEC_HAS_CONTENTS set, but, if they do, this must be
|
| 2145 |
|
|
changed. */
|
| 2146 |
|
|
if (o->lineno_count == 0
|
| 2147 |
|
|
|| (o->output_section->flags & SEC_HAS_CONTENTS) == 0)
|
| 2148 |
|
|
continue;
|
| 2149 |
|
|
|
| 2150 |
|
|
if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET) != 0
|
| 2151 |
|
|
|| bfd_read (finfo->linenos, linesz, o->lineno_count,
|
| 2152 |
|
|
input_bfd) != linesz * o->lineno_count)
|
| 2153 |
|
|
return false;
|
| 2154 |
|
|
|
| 2155 |
|
|
offset = o->output_section->vma + o->output_offset - o->vma;
|
| 2156 |
|
|
eline = finfo->linenos;
|
| 2157 |
|
|
oeline = finfo->linenos;
|
| 2158 |
|
|
elineend = eline + linesz * o->lineno_count;
|
| 2159 |
|
|
skipping = false;
|
| 2160 |
|
|
for (; eline < elineend; eline += linesz)
|
| 2161 |
|
|
{
|
| 2162 |
|
|
struct internal_lineno iline;
|
| 2163 |
|
|
|
| 2164 |
|
|
bfd_coff_swap_lineno_in (input_bfd, (PTR) eline, (PTR) &iline);
|
| 2165 |
|
|
|
| 2166 |
|
|
if (iline.l_lnno != 0)
|
| 2167 |
|
|
iline.l_addr.l_paddr += offset;
|
| 2168 |
|
|
else if (iline.l_addr.l_symndx >= 0
|
| 2169 |
|
|
&& ((unsigned long) iline.l_addr.l_symndx
|
| 2170 |
|
|
< obj_raw_syment_count (input_bfd)))
|
| 2171 |
|
|
{
|
| 2172 |
|
|
long indx;
|
| 2173 |
|
|
|
| 2174 |
|
|
indx = finfo->sym_indices[iline.l_addr.l_symndx];
|
| 2175 |
|
|
|
| 2176 |
|
|
if (indx < 0)
|
| 2177 |
|
|
{
|
| 2178 |
|
|
/* These line numbers are attached to a symbol
|
| 2179 |
|
|
which we are stripping. We must discard the
|
| 2180 |
|
|
line numbers because reading them back with
|
| 2181 |
|
|
no associated symbol (or associating them all
|
| 2182 |
|
|
with symbol #0) will fail. We can't regain
|
| 2183 |
|
|
the space in the output file, but at least
|
| 2184 |
|
|
they're dense. */
|
| 2185 |
|
|
skipping = true;
|
| 2186 |
|
|
}
|
| 2187 |
|
|
else
|
| 2188 |
|
|
{
|
| 2189 |
|
|
struct internal_syment is;
|
| 2190 |
|
|
union internal_auxent ia;
|
| 2191 |
|
|
|
| 2192 |
|
|
/* Fix up the lnnoptr field in the aux entry of
|
| 2193 |
|
|
the symbol. It turns out that we can't do
|
| 2194 |
|
|
this when we modify the symbol aux entries,
|
| 2195 |
|
|
because gas sometimes screws up the lnnoptr
|
| 2196 |
|
|
field and makes it an offset from the start
|
| 2197 |
|
|
of the line numbers rather than an absolute
|
| 2198 |
|
|
file index. */
|
| 2199 |
|
|
bfd_coff_swap_sym_in (output_bfd,
|
| 2200 |
|
|
(PTR) (finfo->outsyms
|
| 2201 |
|
|
+ ((indx - syment_base)
|
| 2202 |
|
|
* osymesz)),
|
| 2203 |
|
|
(PTR) &is);
|
| 2204 |
|
|
if ((ISFCN (is.n_type)
|
| 2205 |
|
|
|| is.n_sclass == C_BLOCK)
|
| 2206 |
|
|
&& is.n_numaux >= 1)
|
| 2207 |
|
|
{
|
| 2208 |
|
|
PTR auxptr;
|
| 2209 |
|
|
|
| 2210 |
|
|
auxptr = (PTR) (finfo->outsyms
|
| 2211 |
|
|
+ ((indx - syment_base + 1)
|
| 2212 |
|
|
* osymesz));
|
| 2213 |
|
|
bfd_coff_swap_aux_in (output_bfd, auxptr,
|
| 2214 |
|
|
is.n_type, is.n_sclass,
|
| 2215 |
|
|
0, is.n_numaux, (PTR) &ia);
|
| 2216 |
|
|
ia.x_sym.x_fcnary.x_fcn.x_lnnoptr =
|
| 2217 |
|
|
(o->output_section->line_filepos
|
| 2218 |
|
|
+ o->output_section->lineno_count * linesz
|
| 2219 |
|
|
+ eline - finfo->linenos);
|
| 2220 |
|
|
bfd_coff_swap_aux_out (output_bfd, (PTR) &ia,
|
| 2221 |
|
|
is.n_type, is.n_sclass, 0,
|
| 2222 |
|
|
is.n_numaux, auxptr);
|
| 2223 |
|
|
}
|
| 2224 |
|
|
|
| 2225 |
|
|
skipping = false;
|
| 2226 |
|
|
}
|
| 2227 |
|
|
|
| 2228 |
|
|
iline.l_addr.l_symndx = indx;
|
| 2229 |
|
|
}
|
| 2230 |
|
|
|
| 2231 |
|
|
if (!skipping)
|
| 2232 |
|
|
{
|
| 2233 |
|
|
bfd_coff_swap_lineno_out (output_bfd, (PTR) &iline,
|
| 2234 |
|
|
(PTR) oeline);
|
| 2235 |
|
|
oeline += linesz;
|
| 2236 |
|
|
}
|
| 2237 |
|
|
}
|
| 2238 |
|
|
|
| 2239 |
|
|
if (bfd_seek (output_bfd,
|
| 2240 |
|
|
(o->output_section->line_filepos
|
| 2241 |
|
|
+ o->output_section->lineno_count * linesz),
|
| 2242 |
|
|
SEEK_SET) != 0
|
| 2243 |
|
|
|| (bfd_write (finfo->linenos, 1, oeline - finfo->linenos,
|
| 2244 |
|
|
output_bfd)
|
| 2245 |
|
|
!= (bfd_size_type) (oeline - finfo->linenos)))
|
| 2246 |
|
|
return false;
|
| 2247 |
|
|
|
| 2248 |
|
|
o->output_section->lineno_count +=
|
| 2249 |
|
|
(oeline - finfo->linenos) / linesz;
|
| 2250 |
|
|
}
|
| 2251 |
|
|
}
|
| 2252 |
|
|
|
| 2253 |
|
|
/* If we swapped out a C_FILE symbol, guess that the next C_FILE
|
| 2254 |
|
|
symbol will be the first symbol in the next input file. In the
|
| 2255 |
|
|
normal case, this will save us from writing out the C_FILE symbol
|
| 2256 |
|
|
again. */
|
| 2257 |
|
|
if (finfo->last_file_index != -1
|
| 2258 |
|
|
&& (bfd_size_type) finfo->last_file_index >= syment_base)
|
| 2259 |
|
|
{
|
| 2260 |
|
|
finfo->last_file.n_value = output_index;
|
| 2261 |
|
|
bfd_coff_swap_sym_out (output_bfd, (PTR) &finfo->last_file,
|
| 2262 |
|
|
(PTR) (finfo->outsyms
|
| 2263 |
|
|
+ ((finfo->last_file_index - syment_base)
|
| 2264 |
|
|
* osymesz)));
|
| 2265 |
|
|
}
|
| 2266 |
|
|
|
| 2267 |
|
|
/* Write the modified symbols to the output file. */
|
| 2268 |
|
|
if (outsym > finfo->outsyms)
|
| 2269 |
|
|
{
|
| 2270 |
|
|
if (bfd_seek (output_bfd,
|
| 2271 |
|
|
obj_sym_filepos (output_bfd) + syment_base * osymesz,
|
| 2272 |
|
|
SEEK_SET) != 0
|
| 2273 |
|
|
|| (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1,
|
| 2274 |
|
|
output_bfd)
|
| 2275 |
|
|
!= (bfd_size_type) (outsym - finfo->outsyms)))
|
| 2276 |
|
|
return false;
|
| 2277 |
|
|
|
| 2278 |
|
|
BFD_ASSERT ((obj_raw_syment_count (output_bfd)
|
| 2279 |
|
|
+ (outsym - finfo->outsyms) / osymesz)
|
| 2280 |
|
|
== output_index);
|
| 2281 |
|
|
|
| 2282 |
|
|
obj_raw_syment_count (output_bfd) = output_index;
|
| 2283 |
|
|
}
|
| 2284 |
|
|
|
| 2285 |
|
|
/* Relocate the contents of each section. */
|
| 2286 |
|
|
adjust_symndx = coff_backend_info (input_bfd)->_bfd_coff_adjust_symndx;
|
| 2287 |
|
|
for (o = input_bfd->sections; o != NULL; o = o->next)
|
| 2288 |
|
|
{
|
| 2289 |
|
|
bfd_byte *contents;
|
| 2290 |
|
|
struct coff_section_tdata *secdata;
|
| 2291 |
|
|
|
| 2292 |
|
|
if (! o->linker_mark)
|
| 2293 |
|
|
{
|
| 2294 |
|
|
/* This section was omitted from the link. */
|
| 2295 |
|
|
continue;
|
| 2296 |
|
|
}
|
| 2297 |
|
|
|
| 2298 |
|
|
if ((o->flags & SEC_HAS_CONTENTS) == 0
|
| 2299 |
|
|
|| (o->_raw_size == 0 && (o->flags & SEC_RELOC) == 0))
|
| 2300 |
|
|
{
|
| 2301 |
|
|
if ((o->flags & SEC_RELOC) != 0
|
| 2302 |
|
|
&& o->reloc_count != 0)
|
| 2303 |
|
|
{
|
| 2304 |
|
|
((*_bfd_error_handler)
|
| 2305 |
|
|
(_("%s: relocs in section `%s', but it has no contents"),
|
| 2306 |
|
|
bfd_get_filename (input_bfd),
|
| 2307 |
|
|
bfd_get_section_name (input_bfd, o)));
|
| 2308 |
|
|
bfd_set_error (bfd_error_no_contents);
|
| 2309 |
|
|
return false;
|
| 2310 |
|
|
}
|
| 2311 |
|
|
|
| 2312 |
|
|
continue;
|
| 2313 |
|
|
}
|
| 2314 |
|
|
|
| 2315 |
|
|
secdata = coff_section_data (input_bfd, o);
|
| 2316 |
|
|
if (secdata != NULL && secdata->contents != NULL)
|
| 2317 |
|
|
contents = secdata->contents;
|
| 2318 |
|
|
else
|
| 2319 |
|
|
{
|
| 2320 |
|
|
if (! bfd_get_section_contents (input_bfd, o, finfo->contents,
|
| 2321 |
|
|
(file_ptr) 0, o->_raw_size))
|
| 2322 |
|
|
return false;
|
| 2323 |
|
|
contents = finfo->contents;
|
| 2324 |
|
|
}
|
| 2325 |
|
|
|
| 2326 |
|
|
if ((o->flags & SEC_RELOC) != 0)
|
| 2327 |
|
|
{
|
| 2328 |
|
|
int target_index;
|
| 2329 |
|
|
struct internal_reloc *internal_relocs;
|
| 2330 |
|
|
struct internal_reloc *irel;
|
| 2331 |
|
|
|
| 2332 |
|
|
/* Read in the relocs. */
|
| 2333 |
|
|
target_index = o->output_section->target_index;
|
| 2334 |
|
|
internal_relocs = (_bfd_coff_read_internal_relocs
|
| 2335 |
|
|
(input_bfd, o, false, finfo->external_relocs,
|
| 2336 |
|
|
finfo->info->relocateable,
|
| 2337 |
|
|
(finfo->info->relocateable
|
| 2338 |
|
|
? (finfo->section_info[target_index].relocs
|
| 2339 |
|
|
+ o->output_section->reloc_count)
|
| 2340 |
|
|
: finfo->internal_relocs)));
|
| 2341 |
|
|
if (internal_relocs == NULL)
|
| 2342 |
|
|
return false;
|
| 2343 |
|
|
|
| 2344 |
|
|
/* Call processor specific code to relocate the section
|
| 2345 |
|
|
contents. */
|
| 2346 |
|
|
if (! bfd_coff_relocate_section (output_bfd, finfo->info,
|
| 2347 |
|
|
input_bfd, o,
|
| 2348 |
|
|
contents,
|
| 2349 |
|
|
internal_relocs,
|
| 2350 |
|
|
finfo->internal_syms,
|
| 2351 |
|
|
finfo->sec_ptrs))
|
| 2352 |
|
|
return false;
|
| 2353 |
|
|
|
| 2354 |
|
|
if (finfo->info->relocateable)
|
| 2355 |
|
|
{
|
| 2356 |
|
|
bfd_vma offset;
|
| 2357 |
|
|
struct internal_reloc *irelend;
|
| 2358 |
|
|
struct coff_link_hash_entry **rel_hash;
|
| 2359 |
|
|
|
| 2360 |
|
|
offset = o->output_section->vma + o->output_offset - o->vma;
|
| 2361 |
|
|
irel = internal_relocs;
|
| 2362 |
|
|
irelend = irel + o->reloc_count;
|
| 2363 |
|
|
rel_hash = (finfo->section_info[target_index].rel_hashes
|
| 2364 |
|
|
+ o->output_section->reloc_count);
|
| 2365 |
|
|
for (; irel < irelend; irel++, rel_hash++)
|
| 2366 |
|
|
{
|
| 2367 |
|
|
struct coff_link_hash_entry *h;
|
| 2368 |
|
|
boolean adjusted;
|
| 2369 |
|
|
|
| 2370 |
|
|
*rel_hash = NULL;
|
| 2371 |
|
|
|
| 2372 |
|
|
/* Adjust the reloc address and symbol index. */
|
| 2373 |
|
|
|
| 2374 |
|
|
irel->r_vaddr += offset;
|
| 2375 |
|
|
|
| 2376 |
|
|
if (irel->r_symndx == -1)
|
| 2377 |
|
|
continue;
|
| 2378 |
|
|
|
| 2379 |
|
|
if (adjust_symndx)
|
| 2380 |
|
|
{
|
| 2381 |
|
|
if (! (*adjust_symndx) (output_bfd, finfo->info,
|
| 2382 |
|
|
input_bfd, o, irel,
|
| 2383 |
|
|
&adjusted))
|
| 2384 |
|
|
return false;
|
| 2385 |
|
|
if (adjusted)
|
| 2386 |
|
|
continue;
|
| 2387 |
|
|
}
|
| 2388 |
|
|
|
| 2389 |
|
|
h = obj_coff_sym_hashes (input_bfd)[irel->r_symndx];
|
| 2390 |
|
|
if (h != NULL)
|
| 2391 |
|
|
{
|
| 2392 |
|
|
/* This is a global symbol. */
|
| 2393 |
|
|
if (h->indx >= 0)
|
| 2394 |
|
|
irel->r_symndx = h->indx;
|
| 2395 |
|
|
else
|
| 2396 |
|
|
{
|
| 2397 |
|
|
/* This symbol is being written at the end
|
| 2398 |
|
|
of the file, and we do not yet know the
|
| 2399 |
|
|
symbol index. We save the pointer to the
|
| 2400 |
|
|
hash table entry in the rel_hash list.
|
| 2401 |
|
|
We set the indx field to -2 to indicate
|
| 2402 |
|
|
that this symbol must not be stripped. */
|
| 2403 |
|
|
*rel_hash = h;
|
| 2404 |
|
|
h->indx = -2;
|
| 2405 |
|
|
}
|
| 2406 |
|
|
}
|
| 2407 |
|
|
else
|
| 2408 |
|
|
{
|
| 2409 |
|
|
long indx;
|
| 2410 |
|
|
|
| 2411 |
|
|
indx = finfo->sym_indices[irel->r_symndx];
|
| 2412 |
|
|
if (indx != -1)
|
| 2413 |
|
|
irel->r_symndx = indx;
|
| 2414 |
|
|
else
|
| 2415 |
|
|
{
|
| 2416 |
|
|
struct internal_syment *is;
|
| 2417 |
|
|
const char *name;
|
| 2418 |
|
|
char buf[SYMNMLEN + 1];
|
| 2419 |
|
|
|
| 2420 |
|
|
/* This reloc is against a symbol we are
|
| 2421 |
|
|
stripping. This should have been handled
|
| 2422 |
|
|
by the 'dont_skip_symbol' code in the while
|
| 2423 |
|
|
loop at the top of this function. */
|
| 2424 |
|
|
|
| 2425 |
|
|
is = finfo->internal_syms + irel->r_symndx;
|
| 2426 |
|
|
|
| 2427 |
|
|
name = (_bfd_coff_internal_syment_name
|
| 2428 |
|
|
(input_bfd, is, buf));
|
| 2429 |
|
|
if (name == NULL)
|
| 2430 |
|
|
return false;
|
| 2431 |
|
|
|
| 2432 |
|
|
if (! ((*finfo->info->callbacks->unattached_reloc)
|
| 2433 |
|
|
(finfo->info, name, input_bfd, o,
|
| 2434 |
|
|
irel->r_vaddr)))
|
| 2435 |
|
|
return false;
|
| 2436 |
|
|
}
|
| 2437 |
|
|
}
|
| 2438 |
|
|
}
|
| 2439 |
|
|
|
| 2440 |
|
|
o->output_section->reloc_count += o->reloc_count;
|
| 2441 |
|
|
}
|
| 2442 |
|
|
}
|
| 2443 |
|
|
|
| 2444 |
|
|
/* Write out the modified section contents. */
|
| 2445 |
|
|
if (secdata == NULL || secdata->stab_info == NULL)
|
| 2446 |
|
|
{
|
| 2447 |
|
|
if (! bfd_set_section_contents (output_bfd, o->output_section,
|
| 2448 |
|
|
contents,
|
| 2449 |
|
|
(file_ptr)
|
| 2450 |
|
|
(o->output_offset *
|
| 2451 |
|
|
bfd_octets_per_byte (output_bfd)),
|
| 2452 |
|
|
(o->_cooked_size != 0
|
| 2453 |
|
|
? o->_cooked_size
|
| 2454 |
|
|
: o->_raw_size)))
|
| 2455 |
|
|
return false;
|
| 2456 |
|
|
}
|
| 2457 |
|
|
else
|
| 2458 |
|
|
{
|
| 2459 |
|
|
if (! (_bfd_write_section_stabs
|
| 2460 |
|
|
(output_bfd, &coff_hash_table (finfo->info)->stab_info,
|
| 2461 |
|
|
o, &secdata->stab_info, contents)))
|
| 2462 |
|
|
return false;
|
| 2463 |
|
|
}
|
| 2464 |
|
|
}
|
| 2465 |
|
|
|
| 2466 |
|
|
if (! finfo->info->keep_memory)
|
| 2467 |
|
|
{
|
| 2468 |
|
|
if (! _bfd_coff_free_symbols (input_bfd))
|
| 2469 |
|
|
return false;
|
| 2470 |
|
|
}
|
| 2471 |
|
|
|
| 2472 |
|
|
return true;
|
| 2473 |
|
|
}
|
| 2474 |
|
|
|
| 2475 |
|
|
/* Write out a global symbol. Called via coff_link_hash_traverse. */
|
| 2476 |
|
|
|
| 2477 |
|
|
boolean
|
| 2478 |
|
|
_bfd_coff_write_global_sym (h, data)
|
| 2479 |
|
|
struct coff_link_hash_entry *h;
|
| 2480 |
|
|
PTR data;
|
| 2481 |
|
|
{
|
| 2482 |
|
|
struct coff_final_link_info *finfo = (struct coff_final_link_info *) data;
|
| 2483 |
|
|
bfd *output_bfd;
|
| 2484 |
|
|
struct internal_syment isym;
|
| 2485 |
|
|
bfd_size_type symesz;
|
| 2486 |
|
|
unsigned int i;
|
| 2487 |
|
|
|
| 2488 |
|
|
output_bfd = finfo->output_bfd;
|
| 2489 |
|
|
|
| 2490 |
|
|
if (h->indx >= 0)
|
| 2491 |
|
|
return true;
|
| 2492 |
|
|
|
| 2493 |
|
|
if (h->indx != -2
|
| 2494 |
|
|
&& (finfo->info->strip == strip_all
|
| 2495 |
|
|
|| (finfo->info->strip == strip_some
|
| 2496 |
|
|
&& (bfd_hash_lookup (finfo->info->keep_hash,
|
| 2497 |
|
|
h->root.root.string, false, false)
|
| 2498 |
|
|
== NULL))))
|
| 2499 |
|
|
return true;
|
| 2500 |
|
|
|
| 2501 |
|
|
switch (h->root.type)
|
| 2502 |
|
|
{
|
| 2503 |
|
|
default:
|
| 2504 |
|
|
case bfd_link_hash_new:
|
| 2505 |
|
|
abort ();
|
| 2506 |
|
|
return false;
|
| 2507 |
|
|
|
| 2508 |
|
|
case bfd_link_hash_undefined:
|
| 2509 |
|
|
case bfd_link_hash_undefweak:
|
| 2510 |
|
|
isym.n_scnum = N_UNDEF;
|
| 2511 |
|
|
isym.n_value = 0;
|
| 2512 |
|
|
break;
|
| 2513 |
|
|
|
| 2514 |
|
|
case bfd_link_hash_defined:
|
| 2515 |
|
|
case bfd_link_hash_defweak:
|
| 2516 |
|
|
{
|
| 2517 |
|
|
asection *sec;
|
| 2518 |
|
|
|
| 2519 |
|
|
sec = h->root.u.def.section->output_section;
|
| 2520 |
|
|
if (bfd_is_abs_section (sec))
|
| 2521 |
|
|
isym.n_scnum = N_ABS;
|
| 2522 |
|
|
else
|
| 2523 |
|
|
isym.n_scnum = sec->target_index;
|
| 2524 |
|
|
isym.n_value = (h->root.u.def.value
|
| 2525 |
|
|
+ h->root.u.def.section->output_offset);
|
| 2526 |
|
|
if (! obj_pe (finfo->output_bfd))
|
| 2527 |
|
|
isym.n_value += sec->vma;
|
| 2528 |
|
|
}
|
| 2529 |
|
|
break;
|
| 2530 |
|
|
|
| 2531 |
|
|
case bfd_link_hash_common:
|
| 2532 |
|
|
isym.n_scnum = N_UNDEF;
|
| 2533 |
|
|
isym.n_value = h->root.u.c.size;
|
| 2534 |
|
|
break;
|
| 2535 |
|
|
|
| 2536 |
|
|
case bfd_link_hash_indirect:
|
| 2537 |
|
|
case bfd_link_hash_warning:
|
| 2538 |
|
|
/* Just ignore these. They can't be handled anyhow. */
|
| 2539 |
|
|
return true;
|
| 2540 |
|
|
}
|
| 2541 |
|
|
|
| 2542 |
|
|
if (strlen (h->root.root.string) <= SYMNMLEN)
|
| 2543 |
|
|
strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN);
|
| 2544 |
|
|
else
|
| 2545 |
|
|
{
|
| 2546 |
|
|
boolean hash;
|
| 2547 |
|
|
bfd_size_type indx;
|
| 2548 |
|
|
|
| 2549 |
|
|
hash = true;
|
| 2550 |
|
|
if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
|
| 2551 |
|
|
hash = false;
|
| 2552 |
|
|
indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash,
|
| 2553 |
|
|
false);
|
| 2554 |
|
|
if (indx == (bfd_size_type) -1)
|
| 2555 |
|
|
{
|
| 2556 |
|
|
finfo->failed = true;
|
| 2557 |
|
|
return false;
|
| 2558 |
|
|
}
|
| 2559 |
|
|
isym._n._n_n._n_zeroes = 0;
|
| 2560 |
|
|
isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx;
|
| 2561 |
|
|
}
|
| 2562 |
|
|
|
| 2563 |
|
|
isym.n_sclass = h->class;
|
| 2564 |
|
|
isym.n_type = h->type;
|
| 2565 |
|
|
|
| 2566 |
|
|
if (isym.n_sclass == C_NULL)
|
| 2567 |
|
|
isym.n_sclass = C_EXT;
|
| 2568 |
|
|
|
| 2569 |
|
|
/* If doing task linking and this is the pass where we convert
|
| 2570 |
|
|
defined globals to statics, then do that conversion now. If the
|
| 2571 |
|
|
symbol is not being converted, just ignore it and it will be
|
| 2572 |
|
|
output during a later pass. */
|
| 2573 |
|
|
if (finfo->global_to_static)
|
| 2574 |
|
|
{
|
| 2575 |
|
|
if (! IS_EXTERNAL (output_bfd, isym))
|
| 2576 |
|
|
return true;
|
| 2577 |
|
|
|
| 2578 |
|
|
isym.n_sclass = C_STAT;
|
| 2579 |
|
|
}
|
| 2580 |
|
|
|
| 2581 |
|
|
/* When a weak symbol is not overriden by a strong one,
|
| 2582 |
|
|
turn it into an external symbol when not building a
|
| 2583 |
|
|
shared or relocateable object. */
|
| 2584 |
|
|
if (! finfo->info->shared
|
| 2585 |
|
|
&& ! finfo->info->relocateable
|
| 2586 |
|
|
&& IS_WEAK_EXTERNAL (finfo->output_bfd, isym))
|
| 2587 |
|
|
isym.n_sclass = C_EXT;
|
| 2588 |
|
|
|
| 2589 |
|
|
isym.n_numaux = h->numaux;
|
| 2590 |
|
|
|
| 2591 |
|
|
bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) finfo->outsyms);
|
| 2592 |
|
|
|
| 2593 |
|
|
symesz = bfd_coff_symesz (output_bfd);
|
| 2594 |
|
|
|
| 2595 |
|
|
if (bfd_seek (output_bfd,
|
| 2596 |
|
|
(obj_sym_filepos (output_bfd)
|
| 2597 |
|
|
+ obj_raw_syment_count (output_bfd) * symesz),
|
| 2598 |
|
|
SEEK_SET) != 0
|
| 2599 |
|
|
|| bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz)
|
| 2600 |
|
|
{
|
| 2601 |
|
|
finfo->failed = true;
|
| 2602 |
|
|
return false;
|
| 2603 |
|
|
}
|
| 2604 |
|
|
|
| 2605 |
|
|
h->indx = obj_raw_syment_count (output_bfd);
|
| 2606 |
|
|
|
| 2607 |
|
|
++obj_raw_syment_count (output_bfd);
|
| 2608 |
|
|
|
| 2609 |
|
|
/* Write out any associated aux entries. Most of the aux entries
|
| 2610 |
|
|
will have been modified in _bfd_coff_link_input_bfd. We have to
|
| 2611 |
|
|
handle section aux entries here, now that we have the final
|
| 2612 |
|
|
relocation and line number counts. */
|
| 2613 |
|
|
for (i = 0; i < isym.n_numaux; i++)
|
| 2614 |
|
|
{
|
| 2615 |
|
|
union internal_auxent *auxp;
|
| 2616 |
|
|
|
| 2617 |
|
|
auxp = h->aux + i;
|
| 2618 |
|
|
|
| 2619 |
|
|
/* Look for a section aux entry here using the same tests that
|
| 2620 |
|
|
coff_swap_aux_out uses. */
|
| 2621 |
|
|
if (i == 0
|
| 2622 |
|
|
&& (isym.n_sclass == C_STAT
|
| 2623 |
|
|
|| isym.n_sclass == C_HIDDEN)
|
| 2624 |
|
|
&& isym.n_type == T_NULL
|
| 2625 |
|
|
&& (h->root.type == bfd_link_hash_defined
|
| 2626 |
|
|
|| h->root.type == bfd_link_hash_defweak))
|
| 2627 |
|
|
{
|
| 2628 |
|
|
asection *sec;
|
| 2629 |
|
|
|
| 2630 |
|
|
sec = h->root.u.def.section->output_section;
|
| 2631 |
|
|
if (sec != NULL)
|
| 2632 |
|
|
{
|
| 2633 |
|
|
auxp->x_scn.x_scnlen = (sec->_cooked_size != 0
|
| 2634 |
|
|
? sec->_cooked_size
|
| 2635 |
|
|
: sec->_raw_size);
|
| 2636 |
|
|
|
| 2637 |
|
|
/* For PE, an overflow on the final link reportedly does
|
| 2638 |
|
|
not matter. FIXME: Why not? */
|
| 2639 |
|
|
|
| 2640 |
|
|
if (sec->reloc_count > 0xffff
|
| 2641 |
|
|
&& (! obj_pe (output_bfd)
|
| 2642 |
|
|
|| finfo->info->relocateable))
|
| 2643 |
|
|
(*_bfd_error_handler)
|
| 2644 |
|
|
(_("%s: %s: reloc overflow: 0x%lx > 0xffff"),
|
| 2645 |
|
|
bfd_get_filename (output_bfd),
|
| 2646 |
|
|
bfd_get_section_name (output_bfd, sec),
|
| 2647 |
|
|
sec->reloc_count);
|
| 2648 |
|
|
|
| 2649 |
|
|
if (sec->lineno_count > 0xffff
|
| 2650 |
|
|
&& (! obj_pe (output_bfd)
|
| 2651 |
|
|
|| finfo->info->relocateable))
|
| 2652 |
|
|
(*_bfd_error_handler)
|
| 2653 |
|
|
(_("%s: warning: %s: line number overflow: 0x%lx > 0xffff"),
|
| 2654 |
|
|
bfd_get_filename (output_bfd),
|
| 2655 |
|
|
bfd_get_section_name (output_bfd, sec),
|
| 2656 |
|
|
sec->lineno_count);
|
| 2657 |
|
|
|
| 2658 |
|
|
auxp->x_scn.x_nreloc = sec->reloc_count;
|
| 2659 |
|
|
auxp->x_scn.x_nlinno = sec->lineno_count;
|
| 2660 |
|
|
auxp->x_scn.x_checksum = 0;
|
| 2661 |
|
|
auxp->x_scn.x_associated = 0;
|
| 2662 |
|
|
auxp->x_scn.x_comdat = 0;
|
| 2663 |
|
|
}
|
| 2664 |
|
|
}
|
| 2665 |
|
|
|
| 2666 |
|
|
bfd_coff_swap_aux_out (output_bfd, (PTR) auxp, isym.n_type,
|
| 2667 |
|
|
isym.n_sclass, i, isym.n_numaux,
|
| 2668 |
|
|
(PTR) finfo->outsyms);
|
| 2669 |
|
|
if (bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz)
|
| 2670 |
|
|
{
|
| 2671 |
|
|
finfo->failed = true;
|
| 2672 |
|
|
return false;
|
| 2673 |
|
|
}
|
| 2674 |
|
|
++obj_raw_syment_count (output_bfd);
|
| 2675 |
|
|
}
|
| 2676 |
|
|
|
| 2677 |
|
|
return true;
|
| 2678 |
|
|
}
|
| 2679 |
|
|
|
| 2680 |
|
|
/* Write out task global symbols, converting them to statics. Called
|
| 2681 |
|
|
via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do
|
| 2682 |
|
|
the dirty work, if the symbol we are processing needs conversion. */
|
| 2683 |
|
|
|
| 2684 |
|
|
boolean
|
| 2685 |
|
|
_bfd_coff_write_task_globals (h, data)
|
| 2686 |
|
|
struct coff_link_hash_entry *h;
|
| 2687 |
|
|
PTR data;
|
| 2688 |
|
|
{
|
| 2689 |
|
|
struct coff_final_link_info *finfo = (struct coff_final_link_info *) data;
|
| 2690 |
|
|
boolean rtnval = true;
|
| 2691 |
|
|
boolean save_global_to_static;
|
| 2692 |
|
|
|
| 2693 |
|
|
if (h->indx < 0)
|
| 2694 |
|
|
{
|
| 2695 |
|
|
switch (h->root.type)
|
| 2696 |
|
|
{
|
| 2697 |
|
|
case bfd_link_hash_defined:
|
| 2698 |
|
|
case bfd_link_hash_defweak:
|
| 2699 |
|
|
save_global_to_static = finfo->global_to_static;
|
| 2700 |
|
|
finfo->global_to_static = true;
|
| 2701 |
|
|
rtnval = _bfd_coff_write_global_sym (h, data);
|
| 2702 |
|
|
finfo->global_to_static = save_global_to_static;
|
| 2703 |
|
|
break;
|
| 2704 |
|
|
default:
|
| 2705 |
|
|
break;
|
| 2706 |
|
|
}
|
| 2707 |
|
|
}
|
| 2708 |
|
|
return (rtnval);
|
| 2709 |
|
|
}
|
| 2710 |
|
|
|
| 2711 |
|
|
/* Handle a link order which is supposed to generate a reloc. */
|
| 2712 |
|
|
|
| 2713 |
|
|
boolean
|
| 2714 |
|
|
_bfd_coff_reloc_link_order (output_bfd, finfo, output_section, link_order)
|
| 2715 |
|
|
bfd *output_bfd;
|
| 2716 |
|
|
struct coff_final_link_info *finfo;
|
| 2717 |
|
|
asection *output_section;
|
| 2718 |
|
|
struct bfd_link_order *link_order;
|
| 2719 |
|
|
{
|
| 2720 |
|
|
reloc_howto_type *howto;
|
| 2721 |
|
|
struct internal_reloc *irel;
|
| 2722 |
|
|
struct coff_link_hash_entry **rel_hash_ptr;
|
| 2723 |
|
|
|
| 2724 |
|
|
howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc);
|
| 2725 |
|
|
if (howto == NULL)
|
| 2726 |
|
|
{
|
| 2727 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 2728 |
|
|
return false;
|
| 2729 |
|
|
}
|
| 2730 |
|
|
|
| 2731 |
|
|
if (link_order->u.reloc.p->addend != 0)
|
| 2732 |
|
|
{
|
| 2733 |
|
|
bfd_size_type size;
|
| 2734 |
|
|
bfd_byte *buf;
|
| 2735 |
|
|
bfd_reloc_status_type rstat;
|
| 2736 |
|
|
boolean ok;
|
| 2737 |
|
|
|
| 2738 |
|
|
size = bfd_get_reloc_size (howto);
|
| 2739 |
|
|
buf = (bfd_byte *) bfd_zmalloc (size);
|
| 2740 |
|
|
if (buf == NULL)
|
| 2741 |
|
|
return false;
|
| 2742 |
|
|
|
| 2743 |
|
|
rstat = _bfd_relocate_contents (howto, output_bfd,
|
| 2744 |
|
|
link_order->u.reloc.p->addend, buf);
|
| 2745 |
|
|
switch (rstat)
|
| 2746 |
|
|
{
|
| 2747 |
|
|
case bfd_reloc_ok:
|
| 2748 |
|
|
break;
|
| 2749 |
|
|
default:
|
| 2750 |
|
|
case bfd_reloc_outofrange:
|
| 2751 |
|
|
abort ();
|
| 2752 |
|
|
case bfd_reloc_overflow:
|
| 2753 |
|
|
if (! ((*finfo->info->callbacks->reloc_overflow)
|
| 2754 |
|
|
(finfo->info,
|
| 2755 |
|
|
(link_order->type == bfd_section_reloc_link_order
|
| 2756 |
|
|
? bfd_section_name (output_bfd,
|
| 2757 |
|
|
link_order->u.reloc.p->u.section)
|
| 2758 |
|
|
: link_order->u.reloc.p->u.name),
|
| 2759 |
|
|
howto->name, link_order->u.reloc.p->addend,
|
| 2760 |
|
|
(bfd *) NULL, (asection *) NULL, (bfd_vma) 0)))
|
| 2761 |
|
|
{
|
| 2762 |
|
|
free (buf);
|
| 2763 |
|
|
return false;
|
| 2764 |
|
|
}
|
| 2765 |
|
|
break;
|
| 2766 |
|
|
}
|
| 2767 |
|
|
ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf,
|
| 2768 |
|
|
(file_ptr)
|
| 2769 |
|
|
(link_order->offset *
|
| 2770 |
|
|
bfd_octets_per_byte (output_bfd)), size);
|
| 2771 |
|
|
free (buf);
|
| 2772 |
|
|
if (! ok)
|
| 2773 |
|
|
return false;
|
| 2774 |
|
|
}
|
| 2775 |
|
|
|
| 2776 |
|
|
/* Store the reloc information in the right place. It will get
|
| 2777 |
|
|
swapped and written out at the end of the final_link routine. */
|
| 2778 |
|
|
|
| 2779 |
|
|
irel = (finfo->section_info[output_section->target_index].relocs
|
| 2780 |
|
|
+ output_section->reloc_count);
|
| 2781 |
|
|
rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes
|
| 2782 |
|
|
+ output_section->reloc_count);
|
| 2783 |
|
|
|
| 2784 |
|
|
memset (irel, 0, sizeof (struct internal_reloc));
|
| 2785 |
|
|
*rel_hash_ptr = NULL;
|
| 2786 |
|
|
|
| 2787 |
|
|
irel->r_vaddr = output_section->vma + link_order->offset;
|
| 2788 |
|
|
|
| 2789 |
|
|
if (link_order->type == bfd_section_reloc_link_order)
|
| 2790 |
|
|
{
|
| 2791 |
|
|
/* We need to somehow locate a symbol in the right section. The
|
| 2792 |
|
|
symbol must either have a value of zero, or we must adjust
|
| 2793 |
|
|
the addend by the value of the symbol. FIXME: Write this
|
| 2794 |
|
|
when we need it. The old linker couldn't handle this anyhow. */
|
| 2795 |
|
|
abort ();
|
| 2796 |
|
|
*rel_hash_ptr = NULL;
|
| 2797 |
|
|
irel->r_symndx = 0;
|
| 2798 |
|
|
}
|
| 2799 |
|
|
else
|
| 2800 |
|
|
{
|
| 2801 |
|
|
struct coff_link_hash_entry *h;
|
| 2802 |
|
|
|
| 2803 |
|
|
h = ((struct coff_link_hash_entry *)
|
| 2804 |
|
|
bfd_wrapped_link_hash_lookup (output_bfd, finfo->info,
|
| 2805 |
|
|
link_order->u.reloc.p->u.name,
|
| 2806 |
|
|
false, false, true));
|
| 2807 |
|
|
if (h != NULL)
|
| 2808 |
|
|
{
|
| 2809 |
|
|
if (h->indx >= 0)
|
| 2810 |
|
|
irel->r_symndx = h->indx;
|
| 2811 |
|
|
else
|
| 2812 |
|
|
{
|
| 2813 |
|
|
/* Set the index to -2 to force this symbol to get
|
| 2814 |
|
|
written out. */
|
| 2815 |
|
|
h->indx = -2;
|
| 2816 |
|
|
*rel_hash_ptr = h;
|
| 2817 |
|
|
irel->r_symndx = 0;
|
| 2818 |
|
|
}
|
| 2819 |
|
|
}
|
| 2820 |
|
|
else
|
| 2821 |
|
|
{
|
| 2822 |
|
|
if (! ((*finfo->info->callbacks->unattached_reloc)
|
| 2823 |
|
|
(finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL,
|
| 2824 |
|
|
(asection *) NULL, (bfd_vma) 0)))
|
| 2825 |
|
|
return false;
|
| 2826 |
|
|
irel->r_symndx = 0;
|
| 2827 |
|
|
}
|
| 2828 |
|
|
}
|
| 2829 |
|
|
|
| 2830 |
|
|
/* FIXME: Is this always right? */
|
| 2831 |
|
|
irel->r_type = howto->type;
|
| 2832 |
|
|
|
| 2833 |
|
|
/* r_size is only used on the RS/6000, which needs its own linker
|
| 2834 |
|
|
routines anyhow. r_extern is only used for ECOFF. */
|
| 2835 |
|
|
|
| 2836 |
|
|
/* FIXME: What is the right value for r_offset? Is zero OK? */
|
| 2837 |
|
|
|
| 2838 |
|
|
++output_section->reloc_count;
|
| 2839 |
|
|
|
| 2840 |
|
|
return true;
|
| 2841 |
|
|
}
|
| 2842 |
|
|
|
| 2843 |
|
|
/* A basic reloc handling routine which may be used by processors with
|
| 2844 |
|
|
simple relocs. */
|
| 2845 |
|
|
|
| 2846 |
|
|
boolean
|
| 2847 |
|
|
_bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
|
| 2848 |
|
|
input_section, contents, relocs, syms,
|
| 2849 |
|
|
sections)
|
| 2850 |
|
|
bfd *output_bfd;
|
| 2851 |
|
|
struct bfd_link_info *info;
|
| 2852 |
|
|
bfd *input_bfd;
|
| 2853 |
|
|
asection *input_section;
|
| 2854 |
|
|
bfd_byte *contents;
|
| 2855 |
|
|
struct internal_reloc *relocs;
|
| 2856 |
|
|
struct internal_syment *syms;
|
| 2857 |
|
|
asection **sections;
|
| 2858 |
|
|
{
|
| 2859 |
|
|
struct internal_reloc *rel;
|
| 2860 |
|
|
struct internal_reloc *relend;
|
| 2861 |
|
|
|
| 2862 |
|
|
rel = relocs;
|
| 2863 |
|
|
relend = rel + input_section->reloc_count;
|
| 2864 |
|
|
for (; rel < relend; rel++)
|
| 2865 |
|
|
{
|
| 2866 |
|
|
long symndx;
|
| 2867 |
|
|
struct coff_link_hash_entry *h;
|
| 2868 |
|
|
struct internal_syment *sym;
|
| 2869 |
|
|
bfd_vma addend;
|
| 2870 |
|
|
bfd_vma val;
|
| 2871 |
|
|
reloc_howto_type *howto;
|
| 2872 |
|
|
bfd_reloc_status_type rstat;
|
| 2873 |
|
|
|
| 2874 |
|
|
symndx = rel->r_symndx;
|
| 2875 |
|
|
|
| 2876 |
|
|
if (symndx == -1)
|
| 2877 |
|
|
{
|
| 2878 |
|
|
h = NULL;
|
| 2879 |
|
|
sym = NULL;
|
| 2880 |
|
|
}
|
| 2881 |
|
|
else if (symndx < 0
|
| 2882 |
|
|
|| (unsigned long) symndx >= obj_raw_syment_count (input_bfd))
|
| 2883 |
|
|
{
|
| 2884 |
|
|
(*_bfd_error_handler)
|
| 2885 |
|
|
("%s: illegal symbol index %ld in relocs",
|
| 2886 |
|
|
bfd_get_filename (input_bfd), symndx);
|
| 2887 |
|
|
return false;
|
| 2888 |
|
|
}
|
| 2889 |
|
|
else
|
| 2890 |
|
|
{
|
| 2891 |
|
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
| 2892 |
|
|
sym = syms + symndx;
|
| 2893 |
|
|
}
|
| 2894 |
|
|
|
| 2895 |
|
|
/* COFF treats common symbols in one of two ways. Either the
|
| 2896 |
|
|
size of the symbol is included in the section contents, or it
|
| 2897 |
|
|
is not. We assume that the size is not included, and force
|
| 2898 |
|
|
the rtype_to_howto function to adjust the addend as needed. */
|
| 2899 |
|
|
|
| 2900 |
|
|
if (sym != NULL && sym->n_scnum != 0)
|
| 2901 |
|
|
addend = - sym->n_value;
|
| 2902 |
|
|
else
|
| 2903 |
|
|
addend = 0;
|
| 2904 |
|
|
|
| 2905 |
|
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
| 2906 |
|
|
sym, &addend);
|
| 2907 |
|
|
if (howto == NULL)
|
| 2908 |
|
|
return false;
|
| 2909 |
|
|
|
| 2910 |
|
|
/* If we are doing a relocateable link, then we can just ignore
|
| 2911 |
|
|
a PC relative reloc that is pcrel_offset. It will already
|
| 2912 |
|
|
have the correct value. If this is not a relocateable link,
|
| 2913 |
|
|
then we should ignore the symbol value. */
|
| 2914 |
|
|
if (howto->pc_relative && howto->pcrel_offset)
|
| 2915 |
|
|
{
|
| 2916 |
|
|
if (info->relocateable)
|
| 2917 |
|
|
continue;
|
| 2918 |
|
|
if (sym != NULL && sym->n_scnum != 0)
|
| 2919 |
|
|
addend += sym->n_value;
|
| 2920 |
|
|
}
|
| 2921 |
|
|
|
| 2922 |
|
|
val = 0;
|
| 2923 |
|
|
|
| 2924 |
|
|
if (h == NULL)
|
| 2925 |
|
|
{
|
| 2926 |
|
|
asection *sec;
|
| 2927 |
|
|
|
| 2928 |
|
|
if (symndx == -1)
|
| 2929 |
|
|
{
|
| 2930 |
|
|
sec = bfd_abs_section_ptr;
|
| 2931 |
|
|
val = 0;
|
| 2932 |
|
|
}
|
| 2933 |
|
|
else
|
| 2934 |
|
|
{
|
| 2935 |
|
|
sec = sections[symndx];
|
| 2936 |
|
|
val = (sec->output_section->vma
|
| 2937 |
|
|
+ sec->output_offset
|
| 2938 |
|
|
+ sym->n_value);
|
| 2939 |
|
|
if (! obj_pe (input_bfd))
|
| 2940 |
|
|
val -= sec->vma;
|
| 2941 |
|
|
}
|
| 2942 |
|
|
}
|
| 2943 |
|
|
else
|
| 2944 |
|
|
{
|
| 2945 |
|
|
if (h->root.type == bfd_link_hash_defined
|
| 2946 |
|
|
|| h->root.type == bfd_link_hash_defweak)
|
| 2947 |
|
|
{
|
| 2948 |
|
|
asection *sec;
|
| 2949 |
|
|
|
| 2950 |
|
|
sec = h->root.u.def.section;
|
| 2951 |
|
|
val = (h->root.u.def.value
|
| 2952 |
|
|
+ sec->output_section->vma
|
| 2953 |
|
|
+ sec->output_offset);
|
| 2954 |
|
|
}
|
| 2955 |
|
|
|
| 2956 |
|
|
else if (h->root.type == bfd_link_hash_undefweak)
|
| 2957 |
|
|
val = 0;
|
| 2958 |
|
|
|
| 2959 |
|
|
else if (! info->relocateable)
|
| 2960 |
|
|
{
|
| 2961 |
|
|
if (! ((*info->callbacks->undefined_symbol)
|
| 2962 |
|
|
(info, h->root.root.string, input_bfd, input_section,
|
| 2963 |
|
|
rel->r_vaddr - input_section->vma, true)))
|
| 2964 |
|
|
return false;
|
| 2965 |
|
|
}
|
| 2966 |
|
|
}
|
| 2967 |
|
|
|
| 2968 |
|
|
if (info->base_file)
|
| 2969 |
|
|
{
|
| 2970 |
|
|
/* Emit a reloc if the backend thinks it needs it. */
|
| 2971 |
|
|
if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
|
| 2972 |
|
|
{
|
| 2973 |
|
|
/* Relocation to a symbol in a section which isn't
|
| 2974 |
|
|
absolute. We output the address here to a file.
|
| 2975 |
|
|
This file is then read by dlltool when generating the
|
| 2976 |
|
|
reloc section. Note that the base file is not
|
| 2977 |
|
|
portable between systems. We write out a long here,
|
| 2978 |
|
|
and dlltool reads in a long. */
|
| 2979 |
|
|
long addr = (rel->r_vaddr
|
| 2980 |
|
|
- input_section->vma
|
| 2981 |
|
|
+ input_section->output_offset
|
| 2982 |
|
|
+ input_section->output_section->vma);
|
| 2983 |
|
|
if (coff_data (output_bfd)->pe)
|
| 2984 |
|
|
addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
|
| 2985 |
|
|
if (fwrite (&addr, 1, sizeof (long), (FILE *) info->base_file)
|
| 2986 |
|
|
!= sizeof (long))
|
| 2987 |
|
|
{
|
| 2988 |
|
|
bfd_set_error (bfd_error_system_call);
|
| 2989 |
|
|
return false;
|
| 2990 |
|
|
}
|
| 2991 |
|
|
}
|
| 2992 |
|
|
}
|
| 2993 |
|
|
|
| 2994 |
|
|
rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 2995 |
|
|
contents,
|
| 2996 |
|
|
rel->r_vaddr - input_section->vma,
|
| 2997 |
|
|
val, addend);
|
| 2998 |
|
|
|
| 2999 |
|
|
switch (rstat)
|
| 3000 |
|
|
{
|
| 3001 |
|
|
default:
|
| 3002 |
|
|
abort ();
|
| 3003 |
|
|
case bfd_reloc_ok:
|
| 3004 |
|
|
break;
|
| 3005 |
|
|
case bfd_reloc_outofrange:
|
| 3006 |
|
|
(*_bfd_error_handler)
|
| 3007 |
|
|
(_("%s: bad reloc address 0x%lx in section `%s'"),
|
| 3008 |
|
|
bfd_get_filename (input_bfd),
|
| 3009 |
|
|
(unsigned long) rel->r_vaddr,
|
| 3010 |
|
|
bfd_get_section_name (input_bfd, input_section));
|
| 3011 |
|
|
return false;
|
| 3012 |
|
|
case bfd_reloc_overflow:
|
| 3013 |
|
|
{
|
| 3014 |
|
|
const char *name;
|
| 3015 |
|
|
char buf[SYMNMLEN + 1];
|
| 3016 |
|
|
|
| 3017 |
|
|
if (symndx == -1)
|
| 3018 |
|
|
name = "*ABS*";
|
| 3019 |
|
|
else if (h != NULL)
|
| 3020 |
|
|
name = h->root.root.string;
|
| 3021 |
|
|
else
|
| 3022 |
|
|
{
|
| 3023 |
|
|
name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
|
| 3024 |
|
|
if (name == NULL)
|
| 3025 |
|
|
return false;
|
| 3026 |
|
|
}
|
| 3027 |
|
|
|
| 3028 |
|
|
if (! ((*info->callbacks->reloc_overflow)
|
| 3029 |
|
|
(info, name, howto->name, (bfd_vma) 0, input_bfd,
|
| 3030 |
|
|
input_section, rel->r_vaddr - input_section->vma)))
|
| 3031 |
|
|
return false;
|
| 3032 |
|
|
}
|
| 3033 |
|
|
}
|
| 3034 |
|
|
}
|
| 3035 |
|
|
return true;
|
| 3036 |
|
|
}
|
