5daa8fe797
2005-05-02 H.J. Lu <hongjiu.lu@intel.com>
* bfd.c (bfd): Remove section_tail and add section_last.
(bfd_preserve): Likewise.
(bfd_preserve_save): Likewise.
(bfd_preserve_restore): Likewise.
* opncls.c (_bfd_new_bfd): Likewise.
* coffcode.h (coff_compute_section_file_positions): Updated.
(coff_compute_section_file_positions): Likewise.
* elf.c (assign_section_numbers): Likewise.
* elf32-i370.c (i370_elf_size_dynamic_sections): Likewise.
* elf64-mmix.c (mmix_elf_final_link): Likewise.
* elfxx-ia64.c (elfNN_ia64_object_p): Likewise.
* elfxx-mips.c (_bfd_mips_elf_link_hash_table_create): Likewise.
* sunos.c (sunos_add_dynamic_symbols): Likewise.
* xcofflink.c (_bfd_xcoff_bfd_final_link): Likewise.
* ecoff.c (bfd_debug_section): Initialize prev.
* section.c (bfd_section): Add prev.
(bfd_section_list_remove): Updated.
(bfd_section_list_append): New.
(bfd_section_list_insert_after): New.
(bfd_section_list_insert_before): New.
(bfd_section_list_insert): Removed.
(bfd_section_removed_from_list): Updated.
(STD_SECTION): Initialize prev.
(bfd_section_init): Updated.
(bfd_section_list_clear): Updated.
* bfd-in2.h: Regenerated.
gas/
2005-05-02 H.J. Lu <hongjiu.lu@intel.com>
* write.c (write_object_file): Use bfd_section_double_list_remove
to remove sections.
ld/
2005-05-02 H.J. Lu <hongjiu.lu@intel.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_strip_empty_section):
Updated for bfd_section_list_remove change.
* ldlang.c (lang_insert_orphan): Likewise.
(strip_excluded_output_sections): Likewise.
(sort_sections_by_lma): New.
(lang_check_section_addresses): Sort the sections before
checking addresses.
1953 lines
56 KiB
Plaintext
1953 lines
56 KiB
Plaintext
# This shell script emits a C file. -*- C -*-
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# It does some substitutions.
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# This file is now misnamed, because it supports both 32 bit and 64 bit
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# ELF emulations.
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|
test -z "${ELFSIZE}" && ELFSIZE=32
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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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|
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/* ${ELFSIZE} bit ELF 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 Free Software Foundation, Inc.
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Written by Steve Chamberlain <sac@cygnus.com>
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ELF support by Ian Lance Taylor <ian@cygnus.com>
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|
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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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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define TARGET_IS_${EMULATION_NAME}
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#include "config.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#include "getopt.h"
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#include "bfdlink.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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#include <ldgram.h>
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#include "elf/common.h"
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/* Declare functions used by various EXTRA_EM_FILEs. */
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static void gld${EMULATION_NAME}_before_parse (void);
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static void gld${EMULATION_NAME}_after_open (void);
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static void gld${EMULATION_NAME}_before_allocation (void);
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static bfd_boolean gld${EMULATION_NAME}_place_orphan
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(lang_input_statement_type *file, asection *s);
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static void gld${EMULATION_NAME}_layout_sections_again (void);
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static void gld${EMULATION_NAME}_strip_empty_sections (void);
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static void gld${EMULATION_NAME}_provide_init_fini_syms (void);
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static void gld${EMULATION_NAME}_finish (void) ATTRIBUTE_UNUSED;
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EOF
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if [ "x${USE_LIBPATH}" = xyes ] ; then
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case ${target} in
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*-*-linux-*)
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cat >>e${EMULATION_NAME}.c <<EOF
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#ifdef HAVE_GLOB
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#include <glob.h>
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#endif
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EOF
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;;
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esac
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fi
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# Import any needed special functions and/or overrides.
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#
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if test -n "$EXTRA_EM_FILE" ; then
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. ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
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fi
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# Functions in this file can be overridden by setting the LDEMUL_* shell
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# variables. If the name of the overriding function is the same as is
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# defined in this file, then don't output this file's version.
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# If a different overriding name is given then output the standard function
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# as presumably it is called from the overriding function.
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#
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if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
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cat >>e${EMULATION_NAME}.c <<EOF
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static void
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gld${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 = ${DYNAMIC_LINK-TRUE};
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config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
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}
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EOF
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fi
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if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
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cat >>e${EMULATION_NAME}.c <<EOF
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/* Handle as_needed DT_NEEDED. */
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static bfd_boolean
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gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
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{
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int class = 0;
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/* Tell the ELF linker that we don't want the output file to have a
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DT_NEEDED entry for this file, unless it is used to resolve
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references in a regular object. */
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if (entry->as_needed)
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class = DYN_AS_NEEDED;
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/* Tell the ELF linker that we don't want the output file to have a
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DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
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this file at all. */
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if (!entry->add_needed)
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class |= DYN_NO_ADD_NEEDED;
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if (!class
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|| (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
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return FALSE;
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bfd_elf_set_dyn_lib_class (entry->the_bfd, class);
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/* Continue on with normal load_symbols processing. */
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return FALSE;
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}
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EOF
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fi
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cat >>e${EMULATION_NAME}.c <<EOF
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/* These variables are required to pass information back and forth
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between after_open and check_needed and stat_needed and vercheck. */
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static struct bfd_link_needed_list *global_needed;
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static struct stat global_stat;
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static bfd_boolean global_found;
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static struct bfd_link_needed_list *global_vercheck_needed;
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static bfd_boolean global_vercheck_failed;
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/* On Linux, it's possible to have different versions of the same
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shared library linked against different versions of libc. The
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dynamic linker somehow tags which libc version to use in
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/etc/ld.so.cache, and, based on the libc that it sees in the
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executable, chooses which version of the shared library to use.
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We try to do a similar check here by checking whether this shared
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library needs any other shared libraries which may conflict with
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libraries we have already included in the link. If it does, we
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skip it, and try to find another shared library farther on down the
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link path.
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This is called via lang_for_each_input_file.
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GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
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which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
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a conflicting version. */
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static void
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gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
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{
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const char *soname;
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struct bfd_link_needed_list *l;
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if (global_vercheck_failed)
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return;
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if (s->the_bfd == NULL
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|| (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
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return;
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soname = bfd_elf_get_dt_soname (s->the_bfd);
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if (soname == NULL)
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soname = lbasename (bfd_get_filename (s->the_bfd));
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for (l = global_vercheck_needed; l != NULL; l = l->next)
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{
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const char *suffix;
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if (strcmp (soname, l->name) == 0)
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{
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/* Probably can't happen, but it's an easy check. */
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continue;
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}
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if (strchr (l->name, '/') != NULL)
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continue;
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suffix = strstr (l->name, ".so.");
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if (suffix == NULL)
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continue;
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suffix += sizeof ".so." - 1;
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if (strncmp (soname, l->name, suffix - l->name) == 0)
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{
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/* Here we know that S is a dynamic object FOO.SO.VER1, and
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the object we are considering needs a dynamic object
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FOO.SO.VER2, and VER1 and VER2 are different. This
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appears to be a version mismatch, so we tell the caller
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to try a different version of this library. */
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global_vercheck_failed = TRUE;
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return;
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}
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}
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}
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/* See if an input file matches a DT_NEEDED entry by running stat on
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the file. */
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static void
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gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
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{
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struct stat st;
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const char *suffix;
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const char *soname;
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if (global_found)
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return;
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if (s->the_bfd == NULL)
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return;
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if (s->as_needed
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&& (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
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return;
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if (bfd_stat (s->the_bfd, &st) != 0)
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{
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einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
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return;
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}
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/* Some operating systems, e.g. Windows, do not provide a meaningful
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st_ino; they always set it to zero. (Windows does provide a
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meaningful st_dev.) Do not indicate a duplicate library in that
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case. While there is no guarantee that a system that provides
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meaningful inode numbers will never set st_ino to zero, this is
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merely an optimization, so we do not need to worry about false
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negatives. */
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if (st.st_dev == global_stat.st_dev
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&& st.st_ino == global_stat.st_ino
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&& st.st_ino != 0)
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{
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global_found = TRUE;
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return;
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}
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/* We issue a warning if it looks like we are including two
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different versions of the same shared library. For example,
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there may be a problem if -lc picks up libc.so.6 but some other
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shared library has a DT_NEEDED entry of libc.so.5. This is a
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heuristic test, and it will only work if the name looks like
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NAME.so.VERSION. FIXME: Depending on file names is error-prone.
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If we really want to issue warnings about mixing version numbers
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of shared libraries, we need to find a better way. */
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if (strchr (global_needed->name, '/') != NULL)
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return;
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suffix = strstr (global_needed->name, ".so.");
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if (suffix == NULL)
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return;
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suffix += sizeof ".so." - 1;
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soname = bfd_elf_get_dt_soname (s->the_bfd);
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if (soname == NULL)
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soname = lbasename (s->filename);
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if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
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einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
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global_needed->name, global_needed->by, soname);
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}
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struct dt_needed
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{
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bfd *by;
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const char *name;
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};
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/* This function is called for each possible name for a dynamic object
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named by a DT_NEEDED entry. The FORCE parameter indicates whether
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to skip the check for a conflicting version. */
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static bfd_boolean
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gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
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int force)
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{
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bfd *abfd;
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const char *name = needed->name;
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const char *soname;
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int class;
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abfd = bfd_openr (name, bfd_get_target (output_bfd));
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if (abfd == NULL)
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return FALSE;
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if (! bfd_check_format (abfd, bfd_object))
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{
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bfd_close (abfd);
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return FALSE;
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}
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if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
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{
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bfd_close (abfd);
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return FALSE;
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}
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/* For DT_NEEDED, they have to match. */
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if (abfd->xvec != output_bfd->xvec)
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{
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bfd_close (abfd);
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return FALSE;
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}
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/* Check whether this object would include any conflicting library
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versions. If FORCE is set, then we skip this check; we use this
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the second time around, if we couldn't find any compatible
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instance of the shared library. */
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if (! force)
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{
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struct bfd_link_needed_list *needed;
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if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
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einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
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if (needed != NULL)
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{
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global_vercheck_needed = needed;
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global_vercheck_failed = FALSE;
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lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
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if (global_vercheck_failed)
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{
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bfd_close (abfd);
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/* Return FALSE to force the caller to move on to try
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another file on the search path. */
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return FALSE;
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}
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/* But wait! It gets much worse. On Linux, if a shared
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library does not use libc at all, we are supposed to skip
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it the first time around in case we encounter a shared
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library later on with the same name which does use the
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version of libc that we want. This is much too horrible
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to use on any system other than Linux. */
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EOF
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case ${target} in
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*-*-linux-*)
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cat >>e${EMULATION_NAME}.c <<EOF
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{
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struct bfd_link_needed_list *l;
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for (l = needed; l != NULL; l = l->next)
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if (strncmp (l->name, "libc.so", 7) == 0)
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break;
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if (l == NULL)
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{
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bfd_close (abfd);
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return FALSE;
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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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cat >>e${EMULATION_NAME}.c <<EOF
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}
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}
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/* We've found a dynamic object matching the DT_NEEDED entry. */
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/* We have already checked that there is no other input file of the
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same name. We must now check again that we are not including the
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same file twice. We need to do this because on many systems
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libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
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reference libc.so.1. If we have already included libc.so, we
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don't want to include libc.so.1 if they are the same file, and we
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can only check that using stat. */
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if (bfd_stat (abfd, &global_stat) != 0)
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einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
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/* First strip off everything before the last '/'. */
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soname = lbasename (abfd->filename);
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if (trace_file_tries)
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info_msg (_("found %s at %s\n"), soname, name);
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global_found = FALSE;
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lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
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|
if (global_found)
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{
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|
/* Return TRUE to indicate that we found the file, even though
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|
we aren't going to do anything with it. */
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return TRUE;
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}
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|
/* Specify the soname to use. */
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bfd_elf_set_dt_needed_name (abfd, soname);
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|
/* Tell the ELF linker that we don't want the output file to have a
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DT_NEEDED entry for this file, unless it is used to resolve
|
|
references in a regular object. */
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|
class = DYN_DT_NEEDED;
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|
/* Tell the ELF linker that we don't want the output file to have a
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DT_NEEDED entry for this file at all if the entry is from a file
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with DYN_NO_ADD_NEEDED. */
|
|
if (needed->by != NULL
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|
&& (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
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|
class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
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|
bfd_elf_set_dyn_lib_class (abfd, class);
|
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|
|
/* Add this file into the symbol table. */
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|
if (! bfd_link_add_symbols (abfd, &link_info))
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|
einfo ("%F%B: could not read symbols: %E\n", abfd);
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return TRUE;
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|
}
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|
|
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|
/* Search for a needed file in a path. */
|
|
|
|
static bfd_boolean
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gld${EMULATION_NAME}_search_needed (const char *path,
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struct dt_needed *n, int force)
|
|
{
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|
const char *s;
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|
const char *name = n->name;
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|
size_t len;
|
|
struct dt_needed needed;
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|
|
if (name[0] == '/')
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|
return gld${EMULATION_NAME}_try_needed (n, force);
|
|
|
|
if (path == NULL || *path == '\0')
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|
return FALSE;
|
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|
|
needed.by = n->by;
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|
needed.name = n->name;
|
|
|
|
len = strlen (name);
|
|
while (1)
|
|
{
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|
char *filename, *sset;
|
|
|
|
s = strchr (path, ':');
|
|
if (s == NULL)
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|
s = path + strlen (path);
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|
|
|
filename = (char *) xmalloc (s - path + len + 2);
|
|
if (s == path)
|
|
sset = filename;
|
|
else
|
|
{
|
|
memcpy (filename, path, s - path);
|
|
filename[s - path] = '/';
|
|
sset = filename + (s - path) + 1;
|
|
}
|
|
strcpy (sset, name);
|
|
|
|
needed.name = filename;
|
|
if (gld${EMULATION_NAME}_try_needed (&needed, force))
|
|
return TRUE;
|
|
|
|
free (filename);
|
|
|
|
if (*s == '\0')
|
|
break;
|
|
path = s + 1;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
EOF
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* Add the sysroot to every entry in a colon-separated path. */
|
|
|
|
static char *
|
|
gld${EMULATION_NAME}_add_sysroot (const char *path)
|
|
{
|
|
int len, colons, i;
|
|
char *ret, *p;
|
|
|
|
len = strlen (path);
|
|
colons = 0;
|
|
i = 0;
|
|
while (path[i])
|
|
if (path[i++] == ':')
|
|
colons++;
|
|
|
|
if (path[i])
|
|
colons++;
|
|
|
|
len = len + (colons + 1) * strlen (ld_sysroot);
|
|
ret = xmalloc (len + 1);
|
|
strcpy (ret, ld_sysroot);
|
|
p = ret + strlen (ret);
|
|
i = 0;
|
|
while (path[i])
|
|
if (path[i] == ':')
|
|
{
|
|
*p++ = path[i++];
|
|
strcpy (p, ld_sysroot);
|
|
p = p + strlen (p);
|
|
}
|
|
else
|
|
*p++ = path[i++];
|
|
|
|
*p = 0;
|
|
return ret;
|
|
}
|
|
|
|
EOF
|
|
case ${target} in
|
|
*-*-linux-*)
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
/* For a native linker, check the file /etc/ld.so.conf for directories
|
|
in which we may find shared libraries. /etc/ld.so.conf is really
|
|
only meaningful on Linux. */
|
|
|
|
struct gld${EMULATION_NAME}_ld_so_conf
|
|
{
|
|
char *path;
|
|
size_t len, alloc;
|
|
};
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_parse_ld_so_conf
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_parse_ld_so_conf_include
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
|
|
const char *pattern)
|
|
{
|
|
char *newp = NULL;
|
|
#ifdef HAVE_GLOB
|
|
glob_t gl;
|
|
#endif
|
|
|
|
if (pattern[0] != '/')
|
|
{
|
|
char *p = strrchr (filename, '/');
|
|
size_t patlen = strlen (pattern) + 1;
|
|
|
|
newp = xmalloc (p - filename + 1 + patlen);
|
|
memcpy (newp, filename, p - filename + 1);
|
|
memcpy (newp + (p - filename + 1), pattern, patlen);
|
|
pattern = newp;
|
|
}
|
|
|
|
#ifdef HAVE_GLOB
|
|
if (glob (pattern, 0, NULL, &gl) == 0)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < gl.gl_pathc; ++i)
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
|
|
globfree (&gl);
|
|
}
|
|
#else
|
|
/* If we do not have glob, treat the pattern as a literal filename. */
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
|
|
#endif
|
|
|
|
if (newp)
|
|
free (newp);
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_parse_ld_so_conf
|
|
(struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
|
|
{
|
|
FILE *f = fopen (filename, FOPEN_RT);
|
|
char *line;
|
|
size_t linelen;
|
|
|
|
if (f == NULL)
|
|
return;
|
|
|
|
linelen = 256;
|
|
line = xmalloc (linelen);
|
|
do
|
|
{
|
|
char *p = line, *q;
|
|
|
|
/* Normally this would use getline(3), but we need to be portable. */
|
|
while ((q = fgets (p, linelen - (p - line), f)) != NULL
|
|
&& strlen (q) == linelen - (p - line) - 1
|
|
&& line[linelen - 2] != '\n')
|
|
{
|
|
line = xrealloc (line, 2 * linelen);
|
|
p = line + linelen - 1;
|
|
linelen += linelen;
|
|
}
|
|
|
|
if (q == NULL && p == line)
|
|
break;
|
|
|
|
p = strchr (line, '\n');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
/* Because the file format does not know any form of quoting we
|
|
can search forward for the next '#' character and if found
|
|
make it terminating the line. */
|
|
p = strchr (line, '#');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
/* Remove leading whitespace. NUL is no whitespace character. */
|
|
p = line;
|
|
while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
|
|
++p;
|
|
|
|
/* If the line is blank it is ignored. */
|
|
if (p[0] == '\0')
|
|
continue;
|
|
|
|
if (!strncmp (p, "include", 7) && (p[7] == ' ' || p[7] == '\t'))
|
|
{
|
|
char *dir, c;
|
|
p += 8;
|
|
do
|
|
{
|
|
while (*p == ' ' || *p == '\t')
|
|
++p;
|
|
|
|
if (*p == '\0')
|
|
break;
|
|
|
|
dir = p;
|
|
|
|
while (*p != ' ' && *p != '\t' && *p)
|
|
++p;
|
|
|
|
c = *p;
|
|
*p++ = '\0';
|
|
if (dir[0] != '\0')
|
|
gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
|
|
dir);
|
|
}
|
|
while (c != '\0');
|
|
}
|
|
else
|
|
{
|
|
char *dir = p;
|
|
while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
|
|
&& *p != '\r' && *p != '\v')
|
|
++p;
|
|
|
|
while (p != dir && p[-1] == '/')
|
|
--p;
|
|
if (info->path == NULL)
|
|
{
|
|
info->alloc = p - dir + 1 + 256;
|
|
info->path = xmalloc (info->alloc);
|
|
info->len = 0;
|
|
}
|
|
else
|
|
{
|
|
if (info->len + 1 + (p - dir) >= info->alloc)
|
|
{
|
|
info->alloc += p - dir + 256;
|
|
info->path = xrealloc (info->path, info->alloc);
|
|
}
|
|
info->path[info->len++] = ':';
|
|
}
|
|
memcpy (info->path + info->len, dir, p - dir);
|
|
info->len += p - dir;
|
|
info->path[info->len] = '\0';
|
|
}
|
|
}
|
|
while (! feof (f));
|
|
free (line);
|
|
fclose (f);
|
|
}
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force)
|
|
{
|
|
static bfd_boolean initialized;
|
|
static char *ld_so_conf;
|
|
struct dt_needed needed;
|
|
|
|
if (! initialized)
|
|
{
|
|
char *tmppath;
|
|
struct gld${EMULATION_NAME}_ld_so_conf info;
|
|
|
|
tmppath = concat (ld_sysroot, "/etc/ld.so.conf", NULL);
|
|
info.path = NULL;
|
|
info.len = info.alloc = 0;
|
|
gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
|
|
free (tmppath);
|
|
if (info.path)
|
|
{
|
|
char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
|
|
free (info.path);
|
|
ld_so_conf = d;
|
|
}
|
|
initialized = TRUE;
|
|
}
|
|
|
|
if (ld_so_conf == NULL)
|
|
return FALSE;
|
|
|
|
|
|
needed.by = NULL;
|
|
needed.name = name;
|
|
return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
|
|
}
|
|
|
|
EOF
|
|
# Linux
|
|
;;
|
|
esac
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* See if an input file matches a DT_NEEDED entry by name. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
|
|
{
|
|
if (global_found)
|
|
return;
|
|
|
|
/* If this input file was an as-needed entry, and wasn't found to be
|
|
needed at the stage it was linked, then don't say we have loaded it. */
|
|
if (s->as_needed
|
|
&& (s->the_bfd == NULL
|
|
|| (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0))
|
|
return;
|
|
|
|
if (s->filename != NULL)
|
|
{
|
|
const char *f;
|
|
|
|
if (strcmp (s->filename, global_needed->name) == 0)
|
|
{
|
|
global_found = TRUE;
|
|
return;
|
|
}
|
|
|
|
if (s->search_dirs_flag)
|
|
{
|
|
f = strrchr (s->filename, '/');
|
|
if (f != NULL
|
|
&& strcmp (f + 1, global_needed->name) == 0)
|
|
{
|
|
global_found = TRUE;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s->the_bfd != NULL)
|
|
{
|
|
const char *soname;
|
|
|
|
soname = bfd_elf_get_dt_soname (s->the_bfd);
|
|
if (soname != NULL
|
|
&& strcmp (soname, global_needed->name) == 0)
|
|
{
|
|
global_found = TRUE;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
EOF
|
|
|
|
if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* This is called after all the input files have been opened. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_after_open (void)
|
|
{
|
|
struct bfd_link_needed_list *needed, *l;
|
|
|
|
/* We only need to worry about this when doing a final link. */
|
|
if (link_info.relocatable || !link_info.executable)
|
|
return;
|
|
|
|
/* Get the list of files which appear in DT_NEEDED entries in
|
|
dynamic objects included in the link (often there will be none).
|
|
For each such file, we want to track down the corresponding
|
|
library, and include the symbol table in the link. This is what
|
|
the runtime dynamic linker will do. Tracking the files down here
|
|
permits one dynamic object to include another without requiring
|
|
special action by the person doing the link. Note that the
|
|
needed list can actually grow while we are stepping through this
|
|
loop. */
|
|
needed = bfd_elf_get_needed_list (output_bfd, &link_info);
|
|
for (l = needed; l != NULL; l = l->next)
|
|
{
|
|
struct bfd_link_needed_list *ll;
|
|
struct dt_needed n, nn;
|
|
int force;
|
|
|
|
/* If the lib that needs this one was --as-needed and wasn't
|
|
found to be needed, then this lib isn't needed either. */
|
|
if (l->by != NULL
|
|
&& (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
|
|
continue;
|
|
|
|
/* If we've already seen this file, skip it. */
|
|
for (ll = needed; ll != l; ll = ll->next)
|
|
if ((ll->by == NULL
|
|
|| (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
|
|
&& strcmp (ll->name, l->name) == 0)
|
|
break;
|
|
if (ll != l)
|
|
continue;
|
|
|
|
/* See if this file was included in the link explicitly. */
|
|
global_needed = l;
|
|
global_found = FALSE;
|
|
lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
|
|
if (global_found)
|
|
continue;
|
|
|
|
n.by = l->by;
|
|
n.name = l->name;
|
|
nn.by = l->by;
|
|
if (trace_file_tries)
|
|
info_msg (_("%s needed by %B\n"), l->name, l->by);
|
|
|
|
/* We need to find this file and include the symbol table. 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, then the environment variable
|
|
LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
|
|
entries (native only), then the linker script LIB_SEARCH_DIRS.
|
|
We do not search using the -L arguments.
|
|
|
|
We search twice. The first time, we skip objects which may
|
|
introduce version mismatches. The second time, we force
|
|
their use. See gld${EMULATION_NAME}_vercheck comment. */
|
|
for (force = 0; force < 2; force++)
|
|
{
|
|
size_t len;
|
|
search_dirs_type *search;
|
|
EOF
|
|
if [ "x${NATIVE}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
const char *lib_path;
|
|
EOF
|
|
fi
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
struct bfd_link_needed_list *rp;
|
|
int found;
|
|
EOF
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
|
|
&n, force))
|
|
break;
|
|
EOF
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
|
|
&n, force))
|
|
break;
|
|
EOF
|
|
fi
|
|
if [ "x${NATIVE}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
if (command_line.rpath_link == NULL
|
|
&& command_line.rpath == NULL)
|
|
{
|
|
lib_path = (const char *) getenv ("LD_RUN_PATH");
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
|
|
force))
|
|
break;
|
|
}
|
|
lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
|
|
if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
|
|
break;
|
|
EOF
|
|
fi
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
found = 0;
|
|
rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
|
|
for (; !found && rp != NULL; rp = rp->next)
|
|
{
|
|
char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
|
|
found = (rp->by == l->by
|
|
&& gld${EMULATION_NAME}_search_needed (tmpname,
|
|
&n,
|
|
force));
|
|
free (tmpname);
|
|
}
|
|
if (found)
|
|
break;
|
|
|
|
EOF
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
len = strlen (l->name);
|
|
for (search = search_head; search != NULL; search = search->next)
|
|
{
|
|
char *filename;
|
|
|
|
if (search->cmdline)
|
|
continue;
|
|
filename = (char *) xmalloc (strlen (search->name) + len + 2);
|
|
sprintf (filename, "%s/%s", search->name, l->name);
|
|
nn.name = filename;
|
|
if (gld${EMULATION_NAME}_try_needed (&nn, force))
|
|
break;
|
|
free (filename);
|
|
}
|
|
if (search != NULL)
|
|
break;
|
|
EOF
|
|
if [ "x${USE_LIBPATH}" = xyes ] ; then
|
|
case ${target} in
|
|
*-*-linux-*)
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
|
|
break;
|
|
EOF
|
|
# Linux
|
|
;;
|
|
esac
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
}
|
|
|
|
if (force < 2)
|
|
continue;
|
|
|
|
einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
|
|
l->name, l->by);
|
|
}
|
|
}
|
|
|
|
EOF
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* Look through an expression for an assignment statement. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
|
|
{
|
|
bfd_boolean provide = FALSE;
|
|
|
|
switch (exp->type.node_class)
|
|
{
|
|
case etree_provide:
|
|
provide = TRUE;
|
|
/* Fall thru */
|
|
case etree_assign:
|
|
/* We call record_link_assignment even if the symbol is defined.
|
|
This is because if it is defined by a dynamic object, we
|
|
actually want to use the value defined by the linker script,
|
|
not the value from the dynamic object (because we are setting
|
|
symbols like etext). If the symbol is defined by a regular
|
|
object, then, as it happens, calling record_link_assignment
|
|
will do no harm. */
|
|
if (strcmp (exp->assign.dst, ".") != 0)
|
|
{
|
|
if (!bfd_elf_record_link_assignment (output_bfd, &link_info,
|
|
exp->assign.dst, provide))
|
|
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${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* This is called by the before_allocation routine via
|
|
lang_for_each_statement. It locates any assignment statements, and
|
|
tells the ELF backend about them, in case they are assignments to
|
|
symbols which are referred to by dynamic objects. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
|
|
{
|
|
if (s->header.type == lang_assignment_statement_enum)
|
|
gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
|
|
}
|
|
|
|
EOF
|
|
|
|
if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
|
|
if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
|
|
ELF_INTERPRETER_SET_DEFAULT="
|
|
if (sinterp != NULL)
|
|
{
|
|
sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
|
|
sinterp->size = strlen ((char *) sinterp->contents) + 1;
|
|
}
|
|
|
|
"
|
|
else
|
|
ELF_INTERPRETER_SET_DEFAULT=
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* This is called after the sections have been attached to output
|
|
sections, but before any sizes or addresses have been set. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_before_allocation (void)
|
|
{
|
|
const char *rpath;
|
|
asection *sinterp;
|
|
|
|
if (link_info.hash->type == bfd_link_elf_hash_table)
|
|
_bfd_elf_tls_setup (output_bfd, &link_info);
|
|
|
|
/* If we are going to make any variable assignments, we need to let
|
|
the ELF backend know about them in case the variables are
|
|
referred to by dynamic objects. */
|
|
lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
|
|
|
|
/* Let the ELF backend work out the sizes of any sections required
|
|
by dynamic linking. */
|
|
rpath = command_line.rpath;
|
|
if (rpath == NULL)
|
|
rpath = (const char *) getenv ("LD_RUN_PATH");
|
|
if (! (bfd_elf_size_dynamic_sections
|
|
(output_bfd, command_line.soname, rpath,
|
|
command_line.filter_shlib,
|
|
(const char * const *) command_line.auxiliary_filters,
|
|
&link_info, &sinterp, lang_elf_version_info)))
|
|
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
|
|
${ELF_INTERPRETER_SET_DEFAULT}
|
|
/* Let the user override the dynamic linker we are using. */
|
|
if (command_line.interpreter != NULL
|
|
&& sinterp != NULL)
|
|
{
|
|
sinterp->contents = (bfd_byte *) command_line.interpreter;
|
|
sinterp->size = strlen (command_line.interpreter) + 1;
|
|
}
|
|
|
|
/* Look for any sections named .gnu.warning. As a GNU extensions,
|
|
we treat such sections as containing warning messages. We print
|
|
out the warning message, and then zero out the section size so
|
|
that it does not get copied into the output file. */
|
|
|
|
{
|
|
LANG_FOR_EACH_INPUT_STATEMENT (is)
|
|
{
|
|
asection *s;
|
|
bfd_size_type sz;
|
|
bfd_size_type prefix_len;
|
|
char *msg;
|
|
bfd_boolean ret;
|
|
const char * gnu_warning_prefix = _("warning: ");
|
|
|
|
if (is->just_syms_flag)
|
|
continue;
|
|
|
|
s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
|
|
if (s == NULL)
|
|
continue;
|
|
|
|
sz = s->size;
|
|
prefix_len = strlen (gnu_warning_prefix);
|
|
msg = xmalloc ((size_t) (prefix_len + sz + 1));
|
|
strcpy (msg, gnu_warning_prefix);
|
|
if (! bfd_get_section_contents (is->the_bfd, s, msg + prefix_len,
|
|
(file_ptr) 0, sz))
|
|
einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
|
|
is->the_bfd);
|
|
msg[prefix_len + sz] = '\0';
|
|
ret = link_info.callbacks->warning (&link_info, msg,
|
|
(const char *) NULL,
|
|
is->the_bfd, (asection *) NULL,
|
|
(bfd_vma) 0);
|
|
ASSERT (ret);
|
|
free (msg);
|
|
|
|
/* Clobber the section size, so that we don't waste copying the
|
|
warning into the output file. */
|
|
s->size = 0;
|
|
|
|
/* Also set SEC_EXCLUDE, so that symbols defined in the warning
|
|
section don't get copied to the output. */
|
|
s->flags |= SEC_EXCLUDE;
|
|
}
|
|
}
|
|
}
|
|
|
|
EOF
|
|
fi
|
|
|
|
if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* Try to open a dynamic archive. This is where we know that ELF
|
|
dynamic libraries have an extension of .so (or .sl on oddball systems
|
|
like hpux). */
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_open_dynamic_archive
|
|
(const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
|
|
{
|
|
const char *filename;
|
|
char *string;
|
|
|
|
if (! entry->is_archive)
|
|
return FALSE;
|
|
|
|
filename = entry->filename;
|
|
|
|
/* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
|
|
is defined, but it does not seem worth the headache to optimize
|
|
away those two bytes of space. */
|
|
string = (char *) xmalloc (strlen (search->name)
|
|
+ strlen (filename)
|
|
+ strlen (arch)
|
|
#ifdef EXTRA_SHLIB_EXTENSION
|
|
+ strlen (EXTRA_SHLIB_EXTENSION)
|
|
#endif
|
|
+ sizeof "/lib.so");
|
|
|
|
sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
|
|
|
|
#ifdef EXTRA_SHLIB_EXTENSION
|
|
/* Try the .so extension first. If that fails build a new filename
|
|
using EXTRA_SHLIB_EXTENSION. */
|
|
if (! ldfile_try_open_bfd (string, entry))
|
|
sprintf (string, "%s/lib%s%s%s", search->name,
|
|
filename, arch, EXTRA_SHLIB_EXTENSION);
|
|
#endif
|
|
|
|
if (! ldfile_try_open_bfd (string, entry))
|
|
{
|
|
free (string);
|
|
return FALSE;
|
|
}
|
|
|
|
entry->filename = string;
|
|
|
|
/* We have found a dynamic object to include in the link. The ELF
|
|
backend linker will create a DT_NEEDED entry in the .dynamic
|
|
section naming this file. If this file includes a DT_SONAME
|
|
entry, it will be used. Otherwise, the ELF linker will just use
|
|
the name of the file. For an archive found by searching, like
|
|
this one, the DT_NEEDED entry should consist of just the name of
|
|
the file, without the path information used to find it. Note
|
|
that we only need to do this if we have a dynamic object; an
|
|
archive will never be referenced by a DT_NEEDED entry.
|
|
|
|
FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
|
|
very pretty. I haven't been able to think of anything that is
|
|
pretty, though. */
|
|
if (bfd_check_format (entry->the_bfd, bfd_object)
|
|
&& (entry->the_bfd->flags & DYNAMIC) != 0)
|
|
{
|
|
ASSERT (entry->is_archive && entry->search_dirs_flag);
|
|
|
|
/* Rather than duplicating the logic above. Just use the
|
|
filename we recorded earlier. */
|
|
|
|
filename = lbasename (entry->filename);
|
|
bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
EOF
|
|
fi
|
|
|
|
if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
/* A variant of lang_output_section_find used by place_orphan. */
|
|
|
|
static lang_output_section_statement_type *
|
|
output_rel_find (asection *sec, int isdyn)
|
|
{
|
|
lang_output_section_statement_type *lookup;
|
|
lang_output_section_statement_type *last = NULL;
|
|
lang_output_section_statement_type *last_alloc = NULL;
|
|
lang_output_section_statement_type *last_rel = NULL;
|
|
lang_output_section_statement_type *last_rel_alloc = NULL;
|
|
int rela = sec->name[4] == 'a';
|
|
|
|
for (lookup = &lang_output_section_statement.head->output_section_statement;
|
|
lookup != NULL;
|
|
lookup = lookup->next)
|
|
{
|
|
if (lookup->constraint != -1
|
|
&& strncmp (".rel", lookup->name, 4) == 0)
|
|
{
|
|
int lookrela = lookup->name[4] == 'a';
|
|
|
|
/* .rel.dyn must come before all other reloc sections, to suit
|
|
GNU ld.so. */
|
|
if (isdyn)
|
|
break;
|
|
|
|
/* Don't place after .rel.plt as doing so results in wrong
|
|
dynamic tags. */
|
|
if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
|
|
break;
|
|
|
|
if (rela == lookrela || last_rel == NULL)
|
|
last_rel = lookup;
|
|
if ((rela == lookrela || last_rel_alloc == NULL)
|
|
&& lookup->bfd_section != NULL
|
|
&& (lookup->bfd_section->flags & SEC_ALLOC) != 0)
|
|
last_rel_alloc = lookup;
|
|
}
|
|
|
|
last = lookup;
|
|
if (lookup->bfd_section != NULL
|
|
&& (lookup->bfd_section->flags & SEC_ALLOC) != 0)
|
|
last_alloc = lookup;
|
|
}
|
|
|
|
if (last_rel_alloc)
|
|
return last_rel_alloc;
|
|
|
|
if (last_rel)
|
|
return last_rel;
|
|
|
|
if (last_alloc)
|
|
return last_alloc;
|
|
|
|
return last;
|
|
}
|
|
|
|
/* Place an orphan section. We use this to put random SHF_ALLOC
|
|
sections in the right segment. */
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s)
|
|
{
|
|
static struct orphan_save hold[] =
|
|
{
|
|
{ ".text",
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
|
|
0, 0, 0, 0 },
|
|
{ ".rodata",
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
|
0, 0, 0, 0 },
|
|
{ ".data",
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
|
|
0, 0, 0, 0 },
|
|
{ ".bss",
|
|
SEC_ALLOC,
|
|
0, 0, 0, 0 },
|
|
{ 0,
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
|
0, 0, 0, 0 },
|
|
{ ".interp",
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
|
|
0, 0, 0, 0 },
|
|
{ ".sdata",
|
|
SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
|
|
0, 0, 0, 0 }
|
|
};
|
|
enum orphan_save_index
|
|
{
|
|
orphan_text = 0,
|
|
orphan_rodata,
|
|
orphan_data,
|
|
orphan_bss,
|
|
orphan_rel,
|
|
orphan_interp,
|
|
orphan_sdata
|
|
};
|
|
static int orphan_init_done = 0;
|
|
struct orphan_save *place;
|
|
const char *secname;
|
|
lang_output_section_statement_type *after;
|
|
lang_output_section_statement_type *os;
|
|
int isdyn = 0;
|
|
|
|
secname = bfd_get_section_name (s->owner, s);
|
|
|
|
if (! link_info.relocatable
|
|
&& link_info.combreloc
|
|
&& (s->flags & SEC_ALLOC)
|
|
&& strncmp (secname, ".rel", 4) == 0)
|
|
{
|
|
if (secname[4] == 'a')
|
|
secname = ".rela.dyn";
|
|
else
|
|
secname = ".rel.dyn";
|
|
isdyn = 1;
|
|
}
|
|
|
|
if (isdyn || (!config.unique_orphan_sections && !unique_section_p (s)))
|
|
{
|
|
/* Look through the script to see where to place this section. */
|
|
os = lang_output_section_find (secname);
|
|
|
|
if (os != NULL
|
|
&& (os->bfd_section == NULL
|
|
|| os->bfd_section->flags == 0
|
|
|| ((s->flags ^ os->bfd_section->flags)
|
|
& (SEC_LOAD | SEC_ALLOC)) == 0))
|
|
{
|
|
/* We already have an output section statement with this
|
|
name, and its bfd section, if any, has compatible flags.
|
|
If the section already exists but does not have any flags
|
|
set, then it has been created by the linker, probably as a
|
|
result of a --section-start command line switch. */
|
|
lang_add_section (&os->children, s, os, file);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
if (!orphan_init_done)
|
|
{
|
|
struct orphan_save *ho;
|
|
for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
|
|
if (ho->name != NULL)
|
|
{
|
|
ho->os = lang_output_section_find (ho->name);
|
|
if (ho->os != NULL && ho->os->flags == 0)
|
|
ho->os->flags = ho->flags;
|
|
}
|
|
orphan_init_done = 1;
|
|
}
|
|
|
|
/* If this is a final link, then always put .gnu.warning.SYMBOL
|
|
sections into the .text section to get them out of the way. */
|
|
if (link_info.executable
|
|
&& ! link_info.relocatable
|
|
&& strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
|
|
&& hold[orphan_text].os != NULL)
|
|
{
|
|
lang_add_section (&hold[orphan_text].os->children, s,
|
|
hold[orphan_text].os, file);
|
|
return TRUE;
|
|
}
|
|
|
|
/* Decide which segment the section should go in based on the
|
|
section name and section flags. We put loadable .note sections
|
|
right after the .interp section, so that the PT_NOTE segment is
|
|
stored right after the program headers where the OS can read it
|
|
in the first page. */
|
|
|
|
place = NULL;
|
|
if ((s->flags & SEC_ALLOC) == 0)
|
|
;
|
|
else if ((s->flags & SEC_LOAD) != 0
|
|
&& strncmp (secname, ".note", 5) == 0)
|
|
place = &hold[orphan_interp];
|
|
else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
|
|
place = &hold[orphan_bss];
|
|
else if ((s->flags & SEC_SMALL_DATA) != 0)
|
|
place = &hold[orphan_sdata];
|
|
else if ((s->flags & SEC_READONLY) == 0)
|
|
place = &hold[orphan_data];
|
|
else if (strncmp (secname, ".rel", 4) == 0
|
|
&& (s->flags & SEC_LOAD) != 0)
|
|
place = &hold[orphan_rel];
|
|
else if ((s->flags & SEC_CODE) == 0)
|
|
place = &hold[orphan_rodata];
|
|
else
|
|
place = &hold[orphan_text];
|
|
|
|
after = NULL;
|
|
if (place != NULL)
|
|
{
|
|
if (place->os == NULL)
|
|
{
|
|
if (place->name != NULL)
|
|
place->os = lang_output_section_find (place->name);
|
|
else
|
|
place->os = output_rel_find (s, isdyn);
|
|
}
|
|
after = place->os;
|
|
if (after == NULL)
|
|
after = lang_output_section_find_by_flags (s, &place->os);
|
|
if (after == NULL)
|
|
/* *ABS* is always the first output section statement. */
|
|
after = &lang_output_section_statement.head->output_section_statement;
|
|
}
|
|
|
|
/* Choose a unique name for the section. This will be needed if the
|
|
same section name appears in the input file with different
|
|
loadable or allocatable characteristics. */
|
|
if (bfd_get_section_by_name (output_bfd, secname) != NULL)
|
|
{
|
|
static int count = 1;
|
|
secname = bfd_get_unique_section_name (output_bfd, secname, &count);
|
|
if (secname == NULL)
|
|
einfo ("%F%P: place_orphan failed: %E\n");
|
|
}
|
|
|
|
lang_insert_orphan (file, s, secname, after, place, NULL, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
EOF
|
|
fi
|
|
|
|
if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_provide_bound_symbols (const char *sec,
|
|
const char *start,
|
|
const char *end)
|
|
{
|
|
asection *s;
|
|
bfd_vma start_val, end_val;
|
|
|
|
s = bfd_get_section_by_name (output_bfd, sec);
|
|
if (s != NULL)
|
|
{
|
|
start_val = s->vma;
|
|
end_val = start_val + s->size;
|
|
}
|
|
else
|
|
{
|
|
/* We have to choose those values very carefully. Some targets,
|
|
like alpha, may have relocation overflow with 0. We use the
|
|
first SEC_ALLOC section which isn't SEC_READONLY or the last
|
|
SEC_ALLOC section. */
|
|
start_val = 0;
|
|
for (s = output_bfd->sections; s != NULL; s = s->next)
|
|
{
|
|
if ((s->flags & SEC_ALLOC) != 0)
|
|
{
|
|
start_val = s->vma;
|
|
if ((s->flags & SEC_READONLY) == 0)
|
|
break;
|
|
}
|
|
}
|
|
end_val = start_val;
|
|
}
|
|
_bfd_elf_provide_symbol (&link_info, start, start_val);
|
|
_bfd_elf_provide_symbol (&link_info, end, end_val);
|
|
}
|
|
|
|
/* If not building a shared library, provide
|
|
|
|
__preinit_array_start
|
|
__preinit_array_end
|
|
__init_array_start
|
|
__init_array_end
|
|
__fini_array_start
|
|
__fini_array_end
|
|
|
|
They are set here rather than via PROVIDE in the linker
|
|
script, because using PROVIDE inside an output section
|
|
statement results in unnecessary output sections. Using
|
|
PROVIDE outside an output section statement runs the risk of
|
|
section alignment affecting where the section starts. */
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_provide_init_fini_syms (void)
|
|
{
|
|
if (!link_info.relocatable && !link_info.shared)
|
|
{
|
|
gld${EMULATION_NAME}_provide_bound_symbols (".preinit_array",
|
|
"__preinit_array_start",
|
|
"__preinit_array_end");
|
|
gld${EMULATION_NAME}_provide_bound_symbols (".init_array",
|
|
"__init_array_start",
|
|
"__init_array_end");
|
|
gld${EMULATION_NAME}_provide_bound_symbols (".fini_array",
|
|
"__fini_array_start",
|
|
"__fini_array_end");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_layout_sections_again (void)
|
|
{
|
|
lang_reset_memory_regions ();
|
|
|
|
/* Resize the sections. */
|
|
lang_size_sections (stat_ptr->head, abs_output_section,
|
|
&stat_ptr->head, 0, (bfd_vma) 0, NULL, TRUE);
|
|
|
|
/* Redo special stuff. */
|
|
ldemul_after_allocation ();
|
|
|
|
/* Do the assignments again. */
|
|
lang_do_assignments (stat_ptr->head, abs_output_section,
|
|
(fill_type *) 0, (bfd_vma) 0);
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_strip_empty_sections (void)
|
|
{
|
|
if (!link_info.relocatable)
|
|
{
|
|
lang_output_section_statement_type *os;
|
|
|
|
for (os = &lang_output_section_statement.head->output_section_statement;
|
|
os != NULL;
|
|
os = os->next)
|
|
{
|
|
asection *s;
|
|
|
|
if (os == abs_output_section || os->constraint == -1)
|
|
continue;
|
|
s = os->bfd_section;
|
|
if (s != NULL
|
|
&& s->size == 0
|
|
&& (s->flags & SEC_KEEP) == 0
|
|
&& !bfd_section_removed_from_list (output_bfd, s))
|
|
{
|
|
bfd_section_list_remove (output_bfd, s);
|
|
output_bfd->section_count--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_finish (void)
|
|
{
|
|
if (bfd_elf_discard_info (output_bfd, &link_info))
|
|
gld${EMULATION_NAME}_layout_sections_again ();
|
|
|
|
gld${EMULATION_NAME}_strip_empty_sections ();
|
|
gld${EMULATION_NAME}_provide_init_fini_syms ();
|
|
}
|
|
EOF
|
|
fi
|
|
|
|
if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
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${EMULATION_NAME}.c
|
|
if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
|
|
echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
|
|
fi
|
|
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
|
|
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
|
echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
|
|
fi
|
|
echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
|
|
fi
|
|
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
|
|
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
|
echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
|
|
fi
|
|
echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
|
|
fi
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
|
|
echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
|
|
echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
|
sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
|
|
fi
|
|
echo ' ; else return' >> e${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";
|
|
EOF
|
|
if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
|
|
else
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (!config.magic_demand_paged)
|
|
return "ldscripts/${EMULATION_NAME}.xn";
|
|
EOF
|
|
fi
|
|
if test -n "$GENERATE_PIE_SCRIPT" ; then
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (link_info.pie && link_info.combreloc
|
|
&& link_info.relro && (link_info.flags & DT_BIND_NOW))
|
|
return "ldscripts/${EMULATION_NAME}.xdw";
|
|
else if (link_info.pie && link_info.combreloc)
|
|
return "ldscripts/${EMULATION_NAME}.xdc";
|
|
EOF
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (link_info.pie)
|
|
return "ldscripts/${EMULATION_NAME}.xd";
|
|
EOF
|
|
fi
|
|
if test -n "$GENERATE_SHLIB_SCRIPT" ; then
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (link_info.shared && link_info.combreloc
|
|
&& link_info.relro && (link_info.flags & DT_BIND_NOW))
|
|
return "ldscripts/${EMULATION_NAME}.xsw";
|
|
else if (link_info.shared && link_info.combreloc)
|
|
return "ldscripts/${EMULATION_NAME}.xsc";
|
|
EOF
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (link_info.shared)
|
|
return "ldscripts/${EMULATION_NAME}.xs";
|
|
EOF
|
|
fi
|
|
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else if (link_info.combreloc && link_info.relro
|
|
&& (link_info.flags & DT_BIND_NOW))
|
|
return "ldscripts/${EMULATION_NAME}.xw";
|
|
else if (link_info.combreloc)
|
|
return "ldscripts/${EMULATION_NAME}.xc";
|
|
EOF
|
|
fi
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
else
|
|
return "ldscripts/${EMULATION_NAME}.x";
|
|
}
|
|
|
|
EOF
|
|
fi
|
|
fi
|
|
|
|
if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
|
|
|
if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
$PARSE_AND_LIST_PROLOGUE
|
|
EOF
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
#define OPTION_DISABLE_NEW_DTAGS (400)
|
|
#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
|
|
#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
|
|
#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
|
|
#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_add_options
|
|
(int ns, char **shortopts, int nl, struct option **longopts,
|
|
int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
|
|
{
|
|
static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
|
|
static const struct option xtra_long[] = {
|
|
EOF
|
|
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
|
|
{"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
|
|
{"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
|
|
{"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
|
|
{"Bgroup", no_argument, NULL, OPTION_GROUP},
|
|
EOF
|
|
fi
|
|
|
|
if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
$PARSE_AND_LIST_LONGOPTS
|
|
EOF
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
{NULL, no_argument, NULL, 0}
|
|
};
|
|
|
|
*shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
|
|
memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
|
|
*longopts = (struct option *)
|
|
xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
|
|
memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
|
|
}
|
|
|
|
static bfd_boolean
|
|
gld${EMULATION_NAME}_handle_option (int optc)
|
|
{
|
|
switch (optc)
|
|
{
|
|
default:
|
|
return FALSE;
|
|
|
|
EOF
|
|
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
case OPTION_DISABLE_NEW_DTAGS:
|
|
link_info.new_dtags = FALSE;
|
|
break;
|
|
|
|
case OPTION_ENABLE_NEW_DTAGS:
|
|
link_info.new_dtags = TRUE;
|
|
break;
|
|
|
|
case OPTION_EH_FRAME_HDR:
|
|
link_info.eh_frame_hdr = TRUE;
|
|
break;
|
|
|
|
case OPTION_GROUP:
|
|
link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
|
|
/* Groups must be self-contained. */
|
|
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
|
|
link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
|
|
break;
|
|
|
|
case OPTION_EXCLUDE_LIBS:
|
|
add_excluded_libs (optarg);
|
|
break;
|
|
|
|
case 'z':
|
|
if (strcmp (optarg, "initfirst") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
|
|
else if (strcmp (optarg, "interpose") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
|
|
else if (strcmp (optarg, "loadfltr") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
|
|
else if (strcmp (optarg, "nodefaultlib") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
|
|
else if (strcmp (optarg, "nodelete") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
|
|
else if (strcmp (optarg, "nodlopen") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
|
|
else if (strcmp (optarg, "nodump") == 0)
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
|
|
else if (strcmp (optarg, "now") == 0)
|
|
{
|
|
link_info.flags |= (bfd_vma) DF_BIND_NOW;
|
|
link_info.flags_1 |= (bfd_vma) DF_1_NOW;
|
|
}
|
|
else if (strcmp (optarg, "origin") == 0)
|
|
{
|
|
link_info.flags |= (bfd_vma) DF_ORIGIN;
|
|
link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
|
|
}
|
|
else if (strcmp (optarg, "defs") == 0)
|
|
link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
|
|
else if (strcmp (optarg, "muldefs") == 0)
|
|
link_info.allow_multiple_definition = TRUE;
|
|
else if (strcmp (optarg, "combreloc") == 0)
|
|
link_info.combreloc = TRUE;
|
|
else if (strcmp (optarg, "nocombreloc") == 0)
|
|
link_info.combreloc = FALSE;
|
|
else if (strcmp (optarg, "nocopyreloc") == 0)
|
|
link_info.nocopyreloc = TRUE;
|
|
else if (strcmp (optarg, "execstack") == 0)
|
|
{
|
|
link_info.execstack = TRUE;
|
|
link_info.noexecstack = FALSE;
|
|
}
|
|
else if (strcmp (optarg, "noexecstack") == 0)
|
|
{
|
|
link_info.noexecstack = TRUE;
|
|
link_info.execstack = FALSE;
|
|
}
|
|
else if (strcmp (optarg, "relro") == 0)
|
|
link_info.relro = TRUE;
|
|
else if (strcmp (optarg, "norelro") == 0)
|
|
link_info.relro = FALSE;
|
|
/* What about the other Solaris -z options? FIXME. */
|
|
break;
|
|
EOF
|
|
fi
|
|
|
|
if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
$PARSE_AND_LIST_ARGS_CASES
|
|
EOF
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
EOF
|
|
|
|
if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
static void
|
|
gld${EMULATION_NAME}_list_options (FILE * file)
|
|
{
|
|
EOF
|
|
|
|
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
|
|
fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
|
|
fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
|
|
fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
|
|
fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
|
|
fprintf (file, _(" -z defs\t\tReport unresolved symbols in object files.\n"));
|
|
fprintf (file, _(" -z execstack\t\tMark executable as requiring executable stack\n"));
|
|
fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
|
|
fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
|
|
fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
|
|
fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
|
|
fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
|
|
fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
|
|
fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
|
|
fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
|
|
fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
|
|
fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
|
|
fprintf (file, _(" -z noexecstack\tMark executable as not requiring executable stack\n"));
|
|
fprintf (file, _(" -z norelro\t\tDon't create RELRO program header\n"));
|
|
fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
|
|
fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
|
|
fprintf (file, _(" -z relro\t\tCreate RELRO program header\n"));
|
|
fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
|
|
EOF
|
|
fi
|
|
|
|
if test -n "$PARSE_AND_LIST_OPTIONS" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
$PARSE_AND_LIST_OPTIONS
|
|
EOF
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
}
|
|
EOF
|
|
|
|
if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
$PARSE_AND_LIST_EPILOGUE
|
|
EOF
|
|
fi
|
|
fi
|
|
else
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
#define gld${EMULATION_NAME}_add_options NULL
|
|
#define gld${EMULATION_NAME}_handle_option NULL
|
|
EOF
|
|
if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
#define gld${EMULATION_NAME}_list_options NULL
|
|
EOF
|
|
fi
|
|
fi
|
|
|
|
cat >>e${EMULATION_NAME}.c <<EOF
|
|
|
|
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
|
|
{
|
|
${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
|
|
${LDEMUL_SYSLIB-syslib_default},
|
|
${LDEMUL_HLL-hll_default},
|
|
${LDEMUL_AFTER_PARSE-after_parse_default},
|
|
${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
|
|
${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
|
|
${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
|
|
${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
|
|
${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
|
|
${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
|
|
"${EMULATION_NAME}",
|
|
"${OUTPUT_FORMAT}",
|
|
${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
|
|
${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
|
|
${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
|
|
${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
|
|
${LDEMUL_SET_SYMBOLS-NULL},
|
|
${LDEMUL_PARSE_ARGS-NULL},
|
|
gld${EMULATION_NAME}_add_options,
|
|
gld${EMULATION_NAME}_handle_option,
|
|
${LDEMUL_UNRECOGNIZED_FILE-NULL},
|
|
${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
|
|
${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
|
|
${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
|
|
${LDEMUL_NEW_VERS_PATTERN-NULL}
|
|
};
|
|
EOF
|