fcf276c495
cosmetic changes, declared various things in header files, removed various extern declarations from .c files. No substantive changes.
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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This module writes out the final image by reading sections from the
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input files, relocating them and writing them out
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There are two main paths through this module, one for normal
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operation and one for partial linking.
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During normal operation, raw section data is read along with the
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associated relocation information, the relocation info applied and
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the section data written out on a section by section basis.
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When partially linking, all the relocation records are read to work
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out how big the output relocation vector will be. Then raw data is
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read, relocated and written section by section.
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Written by Steve Chamberlain sac@cygnus.com
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*/
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#include "bfd.h"
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#include "sysdep.h"
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#include "ld.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldwrite.h"
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#include "ldmisc.h"
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#include "ldsym.h"
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#include "ldgram.h"
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#include "ldmain.h"
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#include "relax.h"
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static void
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read_relocs (abfd, section, symbols)
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bfd * abfd;
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asection * section;
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asymbol ** symbols;
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{
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/* Work out the output section ascociated with this input section */
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asection *output_section = section->output_section;
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bfd_size_type reloc_size = bfd_get_reloc_upper_bound (abfd, section);
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arelent **reloc_vector = (arelent **) ldmalloc (reloc_size);
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if (bfd_canonicalize_reloc (abfd,
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section,
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reloc_vector,
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symbols))
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{
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output_section->reloc_count += section->reloc_count;
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}
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}
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static void
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setup_rel ()
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{
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/*
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Run through each section of each file and work work out the total
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number of relocation records which will finally be in each output
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section
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*/
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LANG_FOR_EACH_INPUT_SECTION
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(statement, abfd, section,
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(read_relocs (abfd, section, statement->asymbols)));
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/*
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Now run though all the output sections and allocate the space for
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all the relocations
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*/
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LANG_FOR_EACH_OUTPUT_SECTION
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(section,
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(section->orelocation =
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(arelent **) ldmalloc ((bfd_size_type) (sizeof (arelent **) *
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section->reloc_count)),
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section->reloc_count = 0));
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}
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void
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ldwrite ()
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{
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PTR data_area = (PTR) ldmalloc (largest_section);
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ldsym_write ();
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if (config.relocateable_output == true)
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setup_rel ();
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write_relax (output_bfd, data_area, config.relocateable_output);
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free (data_area);
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/* Output the symbol table (both globals and locals). */
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/* Print a map, if requested and possible. */
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if (config.map_file)
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{
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ldsym_print_symbol_table ();
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lang_map ();
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}
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}
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