us up to version 2.17.50.20070703, at the last GPLv2 commit. Amongst others, this added upstream support for some FreeBSD-specific things that we previously had to manually hack in, such as the OSABI label support, and so on. There are also quite a number of new files, some for cpu's (e.g. SPU) that we may or may not be interested in, but those can be cleaned up later on, if needed.
1034 lines
28 KiB
Plaintext
1034 lines
28 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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if [ -z "$MACHINE" ]; then
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OUTPUT_ARCH=${ARCH}
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else
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OUTPUT_ARCH=${ARCH}:${MACHINE}
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fi
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cat >e${EMULATION_NAME}.c <<EOF
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/* This file is is generated by a shell script. DO NOT EDIT! */
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/* SunOS emulation code for ${EMULATION_NAME}
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Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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Written by Steve Chamberlain <sac@cygnus.com>
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SunOS shared library support by Ian Lance Taylor <ian@cygnus.com>
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This file is part of GLD, the Gnu Linker.
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|
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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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|
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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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|
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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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#define TARGET_IS_${EMULATION_NAME}
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#include "ld.h"
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#include "ldmain.h"
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#include "ldmisc.h"
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#include "ldexp.h"
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#include "ldlang.h"
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#include "ldfile.h"
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#include "ldemul.h"
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#ifdef HAVE_DIRENT_H
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# include <dirent.h>
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#else
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# define dirent direct
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# ifdef HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# ifdef HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# ifdef HAVE_NDIR_H
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# include <ndir.h>
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# endif
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#endif
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static void gld${EMULATION_NAME}_find_so
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(lang_input_statement_type *);
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static char *gld${EMULATION_NAME}_search_dir
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(const char *, const char *, bfd_boolean *);
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static void gld${EMULATION_NAME}_check_needed
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(lang_input_statement_type *);
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static bfd_boolean gld${EMULATION_NAME}_search_needed
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(const char *, const char *);
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static bfd_boolean gld${EMULATION_NAME}_try_needed
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(const char *, const char *);
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static void gld${EMULATION_NAME}_find_assignment
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(lang_statement_union_type *);
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static void gld${EMULATION_NAME}_find_exp_assignment
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(etree_type *);
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static void gld${EMULATION_NAME}_count_need
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(lang_input_statement_type *);
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static void gld${EMULATION_NAME}_set_need
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(lang_input_statement_type *);
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static void
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gld${EMULATION_NAME}_before_parse (void)
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{
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ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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config.dynamic_link = TRUE;
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config.has_shared = TRUE;
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}
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/* This is called after the command line arguments have been parsed,
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but before the linker script has been read. If this is a native
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linker, we add the directories in LD_LIBRARY_PATH to the search
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list. */
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static void
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gld${EMULATION_NAME}_set_symbols (void)
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{
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EOF
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if [ "x${host}" = "x${target}" ] ; then
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case " ${EMULATION_LIBPATH} " in
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*" ${EMULATION_NAME} "*)
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cat >>e${EMULATION_NAME}.c <<EOF
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const char *env;
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env = (const char *) getenv ("LD_LIBRARY_PATH");
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if (env != NULL)
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{
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char *l;
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l = xstrdup (env);
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while (1)
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{
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char *c;
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c = strchr (l, ':');
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if (c != NULL)
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*c++ = '\0';
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if (*l != '\0')
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ldfile_add_library_path (l, FALSE);
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if (c == NULL)
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break;
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l = c;
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}
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}
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EOF
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;;
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esac
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fi
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cat >>e${EMULATION_NAME}.c <<EOF
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}
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/* Despite the name, we use this routine to search for dynamic
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libraries. On SunOS this requires a directory search. We need to
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find the .so file with the highest version number. The user may
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restrict the major version by saying, e.g., -lc.1. Also, if we
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find a .so file, we need to look for a the same file after
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replacing .so with .sa; if it exists, it will be an archive which
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provide some initializations for data symbols, and we need to
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search it after including the .so file. */
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static void
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gld${EMULATION_NAME}_create_output_section_statements (void)
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{
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lang_for_each_input_file (gld${EMULATION_NAME}_find_so);
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}
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/* Search the directory for a .so file for each library search. */
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static void
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gld${EMULATION_NAME}_find_so (lang_input_statement_type *inp)
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|
{
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search_dirs_type *search;
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char *found = NULL;
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|
char *alc;
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struct stat st;
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|
if (! inp->search_dirs_flag
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|| ! inp->is_archive
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|| ! inp->dynamic)
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return;
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|
ASSERT (CONST_STRNEQ (inp->local_sym_name, "-l"));
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|
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for (search = search_head; search != NULL; search = search->next)
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{
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bfd_boolean found_static;
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found = gld${EMULATION_NAME}_search_dir (search->name, inp->filename,
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&found_static);
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if (found != NULL || found_static)
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break;
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}
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|
if (found == NULL)
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|
{
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|
/* We did not find a matching .so file. This isn't an error,
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|
since there might still be a matching .a file, which will be
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found by the usual search. */
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return;
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}
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|
/* Replace the filename with the one we have found. */
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alc = (char *) xmalloc (strlen (search->name) + strlen (found) + 2);
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sprintf (alc, "%s/%s", search->name, found);
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inp->filename = alc;
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|
/* Turn off the search_dirs_flag to prevent ldfile_open_file from
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searching for this file again. */
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inp->search_dirs_flag = FALSE;
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free (found);
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/* Now look for the same file name, but with .sa instead of .so. If
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found, add it to the list of input files. */
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alc = (char *) xmalloc (strlen (inp->filename) + 1);
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strcpy (alc, inp->filename);
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strstr (alc + strlen (search->name), ".so")[2] = 'a';
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if (stat (alc, &st) != 0)
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free (alc);
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|
else
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|
{
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|
lang_input_statement_type *sa;
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|
/* Add the .sa file to the statement list just before the .so
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|
file. This is really a hack. */
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|
sa = ((lang_input_statement_type *)
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xmalloc (sizeof (lang_input_statement_type)));
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*sa = *inp;
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inp->filename = alc;
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inp->local_sym_name = alc;
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inp->header.next = (lang_statement_union_type *) sa;
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inp->next_real_file = (lang_statement_union_type *) sa;
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}
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}
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|
/* Search a directory for a .so file. */
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static char *
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gld${EMULATION_NAME}_search_dir
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(const char *dirname, const char *filename, bfd_boolean *found_static)
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|
{
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|
int force_maj, force_min;
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|
const char *dot;
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|
unsigned int len;
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|
char *alc;
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char *found;
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int max_maj, max_min;
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|
DIR *dir;
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|
struct dirent *entry;
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|
unsigned int dirnamelen;
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char *full_path;
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|
int statval;
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|
struct stat st;
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*found_static = FALSE;
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|
force_maj = -1;
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force_min = -1;
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dot = strchr (filename, '.');
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|
if (dot == NULL)
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{
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len = strlen (filename);
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alc = NULL;
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}
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|
else
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|
{
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force_maj = atoi (dot + 1);
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len = dot - filename;
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alc = (char *) xmalloc (len + 1);
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strncpy (alc, filename, len);
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alc[len] = '\0';
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filename = alc;
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dot = strchr (dot + 1, '.');
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if (dot != NULL)
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force_min = atoi (dot + 1);
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|
}
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|
found = NULL;
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|
max_maj = max_min = 0;
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|
dir = opendir (dirname);
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|
if (dir == NULL)
|
|
return NULL;
|
|
dirnamelen = strlen (dirname);
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|
|
while ((entry = readdir (dir)) != NULL)
|
|
{
|
|
const char *s;
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|
int found_maj, found_min;
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|
if (! CONST_STRNEQ (entry->d_name, "lib")
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|| strncmp (entry->d_name + 3, filename, len) != 0)
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|
continue;
|
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|
if (dot == NULL
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|
&& strcmp (entry->d_name + 3 + len, ".a") == 0)
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|
{
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|
*found_static = TRUE;
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|
continue;
|
|
}
|
|
|
|
/* We accept libfoo.so without a version number, even though the
|
|
native linker does not. This is more convenient for packages
|
|
which just generate .so files for shared libraries, as on ELF
|
|
systems. */
|
|
if (! CONST_STRNEQ (entry->d_name + 3 + len, ".so"))
|
|
continue;
|
|
if (entry->d_name[6 + len] == '\0')
|
|
;
|
|
else if (entry->d_name[6 + len] == '.'
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&& ISDIGIT (entry->d_name[7 + len]))
|
|
;
|
|
else
|
|
continue;
|
|
|
|
for (s = entry->d_name + 6 + len; *s != '\0'; s++)
|
|
if (*s != '.' && ! ISDIGIT (*s))
|
|
break;
|
|
if (*s != '\0')
|
|
continue;
|
|
|
|
/* We've found a .so file. Work out the major and minor
|
|
version numbers. */
|
|
found_maj = 0;
|
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found_min = 0;
|
|
sscanf (entry->d_name + 3 + len, ".so.%d.%d",
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&found_maj, &found_min);
|
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|
|
if ((force_maj != -1 && force_maj != found_maj)
|
|
|| (force_min != -1 && force_min != found_min))
|
|
continue;
|
|
|
|
/* Make sure the file really exists (ignore broken symlinks). */
|
|
full_path = xmalloc (dirnamelen + 1 + strlen (entry->d_name) + 1);
|
|
sprintf (full_path, "%s/%s", dirname, entry->d_name);
|
|
statval = stat (full_path, &st);
|
|
free (full_path);
|
|
if (statval != 0)
|
|
continue;
|
|
|
|
/* We've found a match for the name we are searching for. See
|
|
if this is the version we should use. If the major and minor
|
|
versions match, we use the last entry in alphabetical order;
|
|
I don't know if this is how SunOS distinguishes libc.so.1.8
|
|
from libc.so.1.8.1, but it ought to suffice. */
|
|
if (found == NULL
|
|
|| (found_maj > max_maj)
|
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|| (found_maj == max_maj
|
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&& (found_min > max_min
|
|
|| (found_min == max_min
|
|
&& strcmp (entry->d_name, found) > 0))))
|
|
{
|
|
if (found != NULL)
|
|
free (found);
|
|
found = (char *) xmalloc (strlen (entry->d_name) + 1);
|
|
strcpy (found, entry->d_name);
|
|
max_maj = found_maj;
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max_min = found_min;
|
|
}
|
|
}
|
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|
|
closedir (dir);
|
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|
|
if (alc != NULL)
|
|
free (alc);
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|
return found;
|
|
}
|
|
|
|
/* These variables are required to pass information back and forth
|
|
between after_open and check_needed. */
|
|
|
|
static struct bfd_link_needed_list *global_needed;
|
|
static bfd_boolean global_found;
|
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|
|
/* This is called after all the input files have been opened. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_after_open (void)
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|
{
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|
struct bfd_link_needed_list *needed, *l;
|
|
|
|
/* We only need to worry about this when doing a final link. */
|
|
if (link_info.relocatable || link_info.shared)
|
|
return;
|
|
|
|
/* Get the list of files which appear in ld_need entries in dynamic
|
|
objects included in the link. For each such file, we want to
|
|
track down the corresponding library, and include the symbol
|
|
table in the link. This is what the runtime dynamic linker will
|
|
do. Tracking the files down here permits one dynamic object to
|
|
include another without requiring special action by the person
|
|
doing the link. Note that the needed list can actually grow
|
|
while we are stepping through this loop. */
|
|
needed = bfd_sunos_get_needed_list (output_bfd, &link_info);
|
|
for (l = needed; l != NULL; l = l->next)
|
|
{
|
|
struct bfd_link_needed_list *ll;
|
|
const char *lname;
|
|
search_dirs_type *search;
|
|
|
|
lname = l->name;
|
|
|
|
/* If we've already seen this file, skip it. */
|
|
for (ll = needed; ll != l; ll = ll->next)
|
|
if (strcmp (ll->name, lname) == 0)
|
|
break;
|
|
if (ll != l)
|
|
continue;
|
|
|
|
/* See if this file was included in the link explicitly. */
|
|
global_needed = l;
|
|
global_found = FALSE;
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
|
|
if (global_found)
|
|
continue;
|
|
|
|
if (! CONST_STRNEQ (lname, "-l"))
|
|
{
|
|
bfd *abfd;
|
|
|
|
abfd = bfd_openr (lname, bfd_get_target (output_bfd));
|
|
if (abfd != NULL)
|
|
{
|
|
if (! bfd_check_format (abfd, bfd_object))
|
|
{
|
|
(void) bfd_close (abfd);
|
|
abfd = NULL;
|
|
}
|
|
}
|
|
if (abfd != NULL)
|
|
{
|
|
if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
|
|
{
|
|
(void) bfd_close (abfd);
|
|
abfd = NULL;
|
|
}
|
|
}
|
|
if (abfd != NULL)
|
|
{
|
|
/* We've found the needed dynamic object. */
|
|
if (! bfd_link_add_symbols (abfd, &link_info))
|
|
einfo ("%F%B: could not read symbols: %E\n", abfd);
|
|
}
|
|
else
|
|
{
|
|
einfo ("%P: warning: %s, needed by %B, not found\n",
|
|
lname, l->by);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
lname += 2;
|
|
|
|
/* We want to search for the file in the same way that the
|
|
dynamic linker will search. That means that we want to use
|
|
rpath_link, rpath or -L, then the environment variable
|
|
LD_LIBRARY_PATH (native only), then (if rpath was used) the
|
|
linker script LIB_SEARCH_DIRS. */
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
|
|
lname))
|
|
continue;
|
|
if (command_line.rpath != NULL)
|
|
{
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath, lname))
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
if (gld${EMULATION_NAME}_try_needed (search->name, lname))
|
|
break;
|
|
if (search != NULL)
|
|
continue;
|
|
}
|
|
EOF
|
|
if [ "x${host}" = "x${target}" ] ; then
|
|
case " ${EMULATION_LIBPATH} " in
|
|
*" ${EMULATION_NAME} "*)
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{
|
|
const char *lib_path;
|
|
|
|
lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, lname))
|
|
continue;
|
|
}
|
|
EOF
|
|
;;
|
|
esac
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
if (command_line.rpath != NULL)
|
|
{
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
{
|
|
if (search->cmdline)
|
|
continue;
|
|
if (gld${EMULATION_NAME}_try_needed (search->name, lname))
|
|
break;
|
|
}
|
|
if (search != NULL)
|
|
continue;
|
|
}
|
|
|
|
einfo ("%P: warning: %s, needed by %B, not found\n",
|
|
l->name, l->by);
|
|
}
|
|
}
|
|
|
|
/* Search for a needed file in a path. */
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_search_needed (const char *path, const char *name)
|
|
{
|
|
const char *s;
|
|
|
|
if (path == NULL || *path == '\0')
|
|
return FALSE;
|
|
while (1)
|
|
{
|
|
const char *dir;
|
|
char *dircopy;
|
|
|
|
s = strchr (path, ':');
|
|
if (s == NULL)
|
|
{
|
|
dircopy = NULL;
|
|
dir = path;
|
|
}
|
|
else
|
|
{
|
|
dircopy = (char *) xmalloc (s - path + 1);
|
|
memcpy (dircopy, path, s - path);
|
|
dircopy[s - path] = '\0';
|
|
dir = dircopy;
|
|
}
|
|
|
|
if (gld${EMULATION_NAME}_try_needed (dir, name))
|
|
return TRUE;
|
|
|
|
if (dircopy != NULL)
|
|
free (dircopy);
|
|
|
|
if (s == NULL)
|
|
break;
|
|
path = s + 1;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* This function is called for each possible directory for a needed
|
|
dynamic object. */
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_try_needed (const char *dir, const char *name)
|
|
{
|
|
char *file;
|
|
char *alc;
|
|
bfd_boolean ignore;
|
|
bfd *abfd;
|
|
|
|
file = gld${EMULATION_NAME}_search_dir (dir, name, &ignore);
|
|
if (file == NULL)
|
|
return FALSE;
|
|
|
|
alc = (char *) xmalloc (strlen (dir) + strlen (file) + 2);
|
|
sprintf (alc, "%s/%s", dir, file);
|
|
free (file);
|
|
abfd = bfd_openr (alc, bfd_get_target (output_bfd));
|
|
if (abfd == NULL)
|
|
return FALSE;
|
|
if (! bfd_check_format (abfd, bfd_object))
|
|
{
|
|
(void) bfd_close (abfd);
|
|
return FALSE;
|
|
}
|
|
if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
|
|
{
|
|
(void) bfd_close (abfd);
|
|
return FALSE;
|
|
}
|
|
|
|
/* We've found the needed dynamic object. */
|
|
|
|
/* Add this file into the symbol table. */
|
|
if (! bfd_link_add_symbols (abfd, &link_info))
|
|
einfo ("%F%B: could not read symbols: %E\n", abfd);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* See if we have already included a needed object in the link. This
|
|
does not have to be precise, as it does no harm to include a
|
|
dynamic object more than once. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
|
|
{
|
|
if (s->filename == NULL)
|
|
return;
|
|
if (! CONST_STRNEQ (global_needed->name, "-l"))
|
|
{
|
|
if (strcmp (s->filename, global_needed->name) == 0)
|
|
global_found = TRUE;
|
|
}
|
|
else
|
|
{
|
|
const char *sname, *lname;
|
|
const char *sdot, *ldot;
|
|
int lmaj, lmin, smaj, smin;
|
|
|
|
lname = global_needed->name + 2;
|
|
|
|
sname = strrchr (s->filename, '/');
|
|
if (sname == NULL)
|
|
sname = s->filename;
|
|
else
|
|
++sname;
|
|
|
|
if (! CONST_STRNEQ (sname, "lib"))
|
|
return;
|
|
sname += 3;
|
|
|
|
ldot = strchr (lname, '.');
|
|
if (ldot == NULL)
|
|
ldot = lname + strlen (lname);
|
|
|
|
sdot = strstr (sname, ".so.");
|
|
if (sdot == NULL)
|
|
return;
|
|
|
|
if (sdot - sname != ldot - lname
|
|
|| strncmp (lname, sname, sdot - sname) != 0)
|
|
return;
|
|
|
|
lmaj = lmin = -1;
|
|
sscanf (ldot, ".%d.%d", &lmaj, &lmin);
|
|
smaj = smin = -1;
|
|
sscanf (sdot, ".so.%d.%d", &smaj, &smin);
|
|
if ((smaj != lmaj && smaj != -1 && lmaj != -1)
|
|
|| (smin != lmin && smin != -1 && lmin != -1))
|
|
return;
|
|
|
|
global_found = TRUE;
|
|
}
|
|
}
|
|
|
|
/* We need to use static variables to pass information around the call
|
|
to lang_for_each_statement. Ick. */
|
|
|
|
static const char *find_assign;
|
|
static bfd_boolean found_assign;
|
|
|
|
/* We need to use static variables to pass information around the call
|
|
to lang_for_each_input_file. Ick. */
|
|
|
|
static bfd_size_type need_size;
|
|
static bfd_size_type need_entries;
|
|
static bfd_byte *need_contents;
|
|
static bfd_byte *need_pinfo;
|
|
static bfd_byte *need_pnames;
|
|
|
|
/* The size of one entry in the .need section, not including the file
|
|
name. */
|
|
|
|
#define NEED_ENTRY_SIZE (16)
|
|
|
|
/* This is called after the sections have been attached to output
|
|
sections, but before any sizes or addresses have been set. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_before_allocation (void)
|
|
{
|
|
struct bfd_link_hash_entry *hdyn = NULL;
|
|
asection *sneed;
|
|
asection *srules;
|
|
asection *sdyn;
|
|
|
|
/* The SunOS native linker creates a shared library whenever there
|
|
are any undefined symbols in a link, unless -e is used. This is
|
|
pretty weird, but we are compatible. */
|
|
if (! link_info.shared && ! link_info.relocatable && ! entry_from_cmdline)
|
|
{
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
for (h = link_info.hash->undefs; h != NULL; h = h->u.undef.next)
|
|
{
|
|
if (h->type == bfd_link_hash_undefined
|
|
&& h->u.undef.abfd != NULL
|
|
&& (h->u.undef.abfd->flags & DYNAMIC) == 0
|
|
&& strcmp (h->root.string, "__DYNAMIC") != 0
|
|
&& strcmp (h->root.string, "__GLOBAL_OFFSET_TABLE_") != 0)
|
|
{
|
|
find_assign = h->root.string;
|
|
found_assign = FALSE;
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_assignment);
|
|
if (! found_assign)
|
|
{
|
|
link_info.shared = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (link_info.shared)
|
|
{
|
|
lang_output_section_statement_type *os;
|
|
|
|
/* Set the .text section to start at 0x20, not 0x2020. FIXME:
|
|
This is too magical. */
|
|
os = lang_output_section_statement_lookup (".text");
|
|
if (os->addr_tree == NULL)
|
|
os->addr_tree = exp_intop (0x20);
|
|
}
|
|
|
|
/* We need to create a __DYNAMIC symbol. We don't do this in the
|
|
linker script because we want to set the value to the start of
|
|
the dynamic section if there is one, or to zero if there isn't
|
|
one. We need to create the symbol before calling
|
|
size_dynamic_sections, although we can't set the value until
|
|
afterward. */
|
|
if (! link_info.relocatable)
|
|
{
|
|
hdyn = bfd_link_hash_lookup (link_info.hash, "__DYNAMIC", TRUE, FALSE,
|
|
FALSE);
|
|
if (hdyn == NULL)
|
|
einfo ("%P%F: bfd_link_hash_lookup: %E\n");
|
|
if (! bfd_sunos_record_link_assignment (output_bfd, &link_info,
|
|
"__DYNAMIC"))
|
|
einfo ("%P%F: failed to record assignment to __DYNAMIC: %E\n");
|
|
}
|
|
|
|
/* If we are going to make any variable assignments, we need to let
|
|
the backend linker know about them in case the variables are
|
|
referred to by dynamic objects. */
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_assignment);
|
|
|
|
/* Let the backend linker work out the sizes of any sections
|
|
required by dynamic linking. */
|
|
if (! bfd_sunos_size_dynamic_sections (output_bfd, &link_info, &sdyn,
|
|
&sneed, &srules))
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
|
|
|
if (sneed != NULL)
|
|
{
|
|
/* Set up the .need section. See the description of the ld_need
|
|
field in include/aout/sun4.h. */
|
|
|
|
need_entries = 0;
|
|
need_size = 0;
|
|
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_count_need);
|
|
|
|
/* We should only have a .need section if we have at least one
|
|
dynamic object. */
|
|
ASSERT (need_entries != 0);
|
|
|
|
sneed->size = need_size;
|
|
sneed->contents = (bfd_byte *) xmalloc (need_size);
|
|
|
|
need_contents = sneed->contents;
|
|
need_pinfo = sneed->contents;
|
|
need_pnames = sneed->contents + need_entries * 16;
|
|
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_set_need);
|
|
|
|
ASSERT ((bfd_size_type) (need_pnames - sneed->contents) == need_size);
|
|
}
|
|
|
|
if (srules != NULL)
|
|
{
|
|
/* Set up the .rules section. This is just a PATH like string
|
|
of the -L arguments given on the command line. We permit the
|
|
user to specify the directories using the -rpath command line
|
|
option. */
|
|
if (command_line.rpath)
|
|
{
|
|
srules->size = strlen (command_line.rpath);
|
|
srules->contents = (bfd_byte *) command_line.rpath;
|
|
}
|
|
else
|
|
{
|
|
unsigned int size;
|
|
search_dirs_type *search;
|
|
|
|
size = 0;
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
if (search->cmdline)
|
|
size += strlen (search->name) + 1;
|
|
srules->size = size;
|
|
if (size > 0)
|
|
{
|
|
char *p;
|
|
|
|
srules->contents = (bfd_byte *) xmalloc (size);
|
|
p = (char *) srules->contents;
|
|
*p = '\0';
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
{
|
|
if (search->cmdline)
|
|
{
|
|
if (p != (char *) srules->contents)
|
|
*p++ = ':';
|
|
strcpy (p, search->name);
|
|
p += strlen (p);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We must assign a value to __DYNAMIC. It should be zero if we are
|
|
not doing a dynamic link, or the start of the .dynamic section if
|
|
we are doing one. */
|
|
if (! link_info.relocatable)
|
|
{
|
|
hdyn->type = bfd_link_hash_defined;
|
|
hdyn->u.def.value = 0;
|
|
if (sdyn != NULL)
|
|
hdyn->u.def.section = sdyn;
|
|
else
|
|
hdyn->u.def.section = bfd_abs_section_ptr;
|
|
}
|
|
|
|
before_allocation_default ();
|
|
}
|
|
|
|
/* This is called by the before_allocation routine via
|
|
lang_for_each_statement. It does one of two things: if the
|
|
variable find_assign is set, it sets found_assign if it finds an
|
|
assignment to that variable; otherwise it tells the backend linker
|
|
about all assignment statements, in case they are assignments to
|
|
symbols which are referred to by dynamic objects. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_assignment (lang_statement_union_type *s)
|
|
{
|
|
if (s->header.type == lang_assignment_statement_enum
|
|
&& (find_assign == NULL || ! found_assign))
|
|
gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
|
|
}
|
|
|
|
/* Look through an expression for an assignment statement. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
|
|
{
|
|
switch (exp->type.node_class)
|
|
{
|
|
case etree_assign:
|
|
if (find_assign != NULL)
|
|
{
|
|
if (strcmp (find_assign, exp->assign.dst) == 0)
|
|
found_assign = TRUE;
|
|
return;
|
|
}
|
|
|
|
if (strcmp (exp->assign.dst, ".") != 0)
|
|
{
|
|
if (! bfd_sunos_record_link_assignment (output_bfd, &link_info,
|
|
exp->assign.dst))
|
|
einfo ("%P%F: failed to record assignment to %s: %E\n",
|
|
exp->assign.dst);
|
|
}
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
|
|
break;
|
|
|
|
case etree_binary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
|
|
break;
|
|
|
|
case etree_trinary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
|
|
break;
|
|
|
|
case etree_unary:
|
|
gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Work out the size of the .need section, and the number of entries.
|
|
The backend will set the ld_need field of the dynamic linking
|
|
information to point to the .need section. See include/aout/sun4.h
|
|
for more information. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_count_need (lang_input_statement_type *inp)
|
|
{
|
|
if (inp->the_bfd != NULL
|
|
&& (inp->the_bfd->flags & DYNAMIC) != 0)
|
|
{
|
|
++need_entries;
|
|
need_size += NEED_ENTRY_SIZE;
|
|
if (! inp->is_archive)
|
|
need_size += strlen (inp->filename) + 1;
|
|
else
|
|
{
|
|
ASSERT (inp->local_sym_name[0] == '-'
|
|
&& inp->local_sym_name[1] == 'l');
|
|
need_size += strlen (inp->local_sym_name + 2) + 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fill in the contents of the .need section. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_set_need (lang_input_statement_type *inp)
|
|
{
|
|
if (inp->the_bfd != NULL
|
|
&& (inp->the_bfd->flags & DYNAMIC) != 0)
|
|
{
|
|
bfd_size_type c;
|
|
|
|
/* To really fill in the .need section contents, we need to know
|
|
the final file position of the section, but we don't.
|
|
Instead, we use offsets, and rely on the BFD backend to
|
|
finish the section up correctly. FIXME: Talk about lack of
|
|
referential locality. */
|
|
bfd_put_32 (output_bfd, need_pnames - need_contents, need_pinfo);
|
|
if (! inp->is_archive)
|
|
{
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, need_pinfo + 4);
|
|
bfd_put_16 (output_bfd, (bfd_vma) 0, need_pinfo + 8);
|
|
bfd_put_16 (output_bfd, (bfd_vma) 0, need_pinfo + 10);
|
|
strcpy ((char *) need_pnames, inp->filename);
|
|
}
|
|
else
|
|
{
|
|
char *verstr;
|
|
int maj, min;
|
|
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x80000000, need_pinfo + 4);
|
|
maj = 0;
|
|
min = 0;
|
|
verstr = strstr (inp->filename, ".so.");
|
|
if (verstr != NULL)
|
|
sscanf (verstr, ".so.%d.%d", &maj, &min);
|
|
bfd_put_16 (output_bfd, (bfd_vma) maj, need_pinfo + 8);
|
|
bfd_put_16 (output_bfd, (bfd_vma) min, need_pinfo + 10);
|
|
strcpy ((char *) need_pnames, inp->local_sym_name + 2);
|
|
}
|
|
|
|
c = (need_pinfo - need_contents) / NEED_ENTRY_SIZE;
|
|
if (c + 1 >= need_entries)
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, need_pinfo + 12);
|
|
else
|
|
bfd_put_32 (output_bfd, (bfd_vma) (c + 1) * NEED_ENTRY_SIZE,
|
|
need_pinfo + 12);
|
|
|
|
need_pinfo += NEED_ENTRY_SIZE;
|
|
need_pnames += strlen ((char *) need_pnames) + 1;
|
|
}
|
|
}
|
|
|
|
static char *
|
|
gld${EMULATION_NAME}_get_script (int *isfile)
|
|
EOF
|
|
|
|
if test -n "$COMPILE_IN"
|
|
then
|
|
# Scripts compiled in.
|
|
|
|
# sed commands to quote an ld script as a C string.
|
|
sc="-f stringify.sed"
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{
|
|
*isfile = 0;
|
|
|
|
if (link_info.relocatable && config.build_constructors)
|
|
return
|
|
EOF
|
|
sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
|
echo ' ; else return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
|
echo '; }' >> e${EMULATION_NAME}.c
|
|
|
|
else
|
|
# Scripts read from the filesystem.
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{
|
|
*isfile = 1;
|
|
|
|
if (link_info.relocatable && config.build_constructors)
|
|
return "ldscripts/${EMULATION_NAME}.xu";
|
|
else if (link_info.relocatable)
|
|
return "ldscripts/${EMULATION_NAME}.xr";
|
|
else if (!config.text_read_only)
|
|
return "ldscripts/${EMULATION_NAME}.xbn";
|
|
else if (!config.magic_demand_paged)
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
|
else
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
|
}
|
|
EOF
|
|
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
|
{
|
|
gld${EMULATION_NAME}_before_parse,
|
|
syslib_default,
|
|
hll_default,
|
|
after_parse_default,
|
|
gld${EMULATION_NAME}_after_open,
|
|
after_allocation_default,
|
|
set_output_arch_default,
|
|
ldemul_default_target,
|
|
gld${EMULATION_NAME}_before_allocation,
|
|
gld${EMULATION_NAME}_get_script,
|
|
"${EMULATION_NAME}",
|
|
"${OUTPUT_FORMAT}",
|
|
finish_default,
|
|
gld${EMULATION_NAME}_create_output_section_statements,
|
|
NULL, /* open dynamic archive */
|
|
NULL, /* place orphan */
|
|
gld${EMULATION_NAME}_set_symbols,
|
|
NULL, /* parse args */
|
|
NULL, /* add_options */
|
|
NULL, /* handle_option */
|
|
NULL, /* unrecognized file */
|
|
NULL, /* list options */
|
|
NULL, /* recognized file */
|
|
NULL, /* find_potential_libraries */
|
|
NULL /* new_vers_pattern */
|
|
};
|
|
EOF
|