155 lines
4.6 KiB
Text
155 lines
4.6 KiB
Text
# This shell script emits a C file. -*- C -*-
|
|
# It does some substitutions.
|
|
if [ -z "$MACHINE" ]; then
|
|
OUTPUT_ARCH=${ARCH}
|
|
else
|
|
OUTPUT_ARCH=${ARCH}:${MACHINE}
|
|
fi
|
|
fragment <<EOF
|
|
/* This file is generated by a shell script. DO NOT EDIT! */
|
|
|
|
/* Solaris 2 emulation code for ${EMULATION_NAME}
|
|
Copyright (C) 2010-2015 Free Software Foundation, Inc.
|
|
Written by Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
|
|
|
|
This file is part of the GNU Binutils.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#define TARGET_IS_${EMULATION_NAME}
|
|
|
|
/* The Solaris 2 ABI requires some global symbols to be present in the
|
|
.dynsym table of executables and shared objects. If generating a
|
|
versioned shared object, they must always be bound to the base version.
|
|
|
|
Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
|
|
File, p.63. */
|
|
static void
|
|
elf_solaris2_before_allocation (void)
|
|
{
|
|
/* Global symbols required by the Solaris 2 ABI. */
|
|
static const char *global_syms[] = {
|
|
"_DYNAMIC",
|
|
"_GLOBAL_OFFSET_TABLE_",
|
|
"_PROCEDURE_LINKAGE_TABLE_",
|
|
"_edata",
|
|
"_end",
|
|
"_etext",
|
|
NULL
|
|
};
|
|
const char **sym;
|
|
|
|
/* Do this for both executables and shared objects. */
|
|
if (!link_info.relocatable)
|
|
{
|
|
for (sym = global_syms; *sym != NULL; sym++)
|
|
{
|
|
struct elf_link_hash_entry *h;
|
|
|
|
/* Lookup symbol. */
|
|
h = elf_link_hash_lookup (elf_hash_table (&link_info), *sym,
|
|
FALSE, FALSE, FALSE);
|
|
if (h == NULL)
|
|
continue;
|
|
|
|
/* Undo the hiding done by _bfd_elf_define_linkage_sym. */
|
|
h->forced_local = 0;
|
|
h->other &= ~STV_HIDDEN;
|
|
|
|
/* Emit it into the .dynamic section, too. */
|
|
bfd_elf_link_record_dynamic_symbol (&link_info, h);
|
|
}
|
|
}
|
|
|
|
/* Only do this if emitting a shared object and versioning is in place. */
|
|
if (link_info.shared
|
|
&& (link_info.version_info != NULL
|
|
|| link_info.create_default_symver))
|
|
{
|
|
struct bfd_elf_version_expr *globals = NULL, *locals = NULL;
|
|
struct bfd_elf_version_tree *basever;
|
|
const char *soname;
|
|
|
|
for (sym = global_syms; *sym != NULL; sym++)
|
|
{
|
|
/* Create a version pattern for this symbol. Some of them start
|
|
off as local, others as global, so try both. */
|
|
globals = lang_new_vers_pattern (globals, *sym, NULL, TRUE);
|
|
locals = lang_new_vers_pattern (locals, *sym, NULL, TRUE);
|
|
}
|
|
|
|
/* New version node for those symbols. */
|
|
basever = lang_new_vers_node (globals, locals);
|
|
|
|
/* The version name matches what bfd_elf_size_dynamic_sections uses
|
|
for the base version. */
|
|
soname = bfd_elf_get_dt_soname (link_info.output_bfd);
|
|
if (soname == NULL)
|
|
soname = lbasename (bfd_get_filename (link_info.output_bfd));
|
|
|
|
/* Register the node. */
|
|
lang_register_vers_node (soname, basever, NULL);
|
|
/* Enforce base version. The encoded vd_ndx is vernum + 1. */
|
|
basever->vernum = 0;
|
|
}
|
|
|
|
gld${EMULATION_NAME}_before_allocation ();
|
|
}
|
|
|
|
/* The Solaris 2 ABI requires two local symbols to be emitted for every
|
|
executable and shared object.
|
|
|
|
Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
|
|
File, p.63. */
|
|
static void
|
|
elf_solaris2_after_allocation (void)
|
|
{
|
|
/* Local symbols required by the Solaris 2 ABI. Already emitted by
|
|
emulparams/solaris2.sh. */
|
|
static const char *local_syms[] = {
|
|
"_START_",
|
|
"_END_",
|
|
NULL
|
|
};
|
|
const char **sym;
|
|
|
|
/* Do this for both executables and shared objects. */
|
|
if (!link_info.relocatable)
|
|
{
|
|
for (sym = local_syms; *sym != NULL; sym++)
|
|
{
|
|
struct elf_link_hash_entry *h;
|
|
|
|
/* Lookup symbol. */
|
|
h = elf_link_hash_lookup (elf_hash_table (&link_info), *sym,
|
|
FALSE, FALSE, FALSE);
|
|
if (h == NULL)
|
|
continue;
|
|
|
|
/* Turn it local. */
|
|
h->forced_local = 1;
|
|
/* Type should be STT_OBJECT, not STT_NOTYPE. */
|
|
h->type = STT_OBJECT;
|
|
}
|
|
}
|
|
|
|
gld${EMULATION_NAME}_after_allocation ();
|
|
}
|
|
|
|
EOF
|
|
|
|
LDEMUL_BEFORE_ALLOCATION=elf_solaris2_before_allocation
|
|
LDEMUL_AFTER_ALLOCATION=elf_solaris2_after_allocation
|