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authorRainer Orth <ro@TechFak.Uni-Bielefeld.DE>2010-03-05 19:49:00 +0000
committerRainer Orth <ro@TechFak.Uni-Bielefeld.DE>2010-03-05 19:49:00 +0000
commita6cc6b3bc4d8f33c24473b6e7c5fc3ea1f1ac998 (patch)
tree65dbce5f1d188f21bf09555994a129c2731cb6ac /ld/emultempl
parent4e7386b0c714425b9c1ac212ecc861297e581b19 (diff)
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ld:
* Makefile.am (ALL_EMULATIONS): Add eelf32_sparc_sol2.o, eelf_i386_sol2.o. (ALL_64_EMULATIONS): Add eelf_x86_64_sol2.o, eelf64_sparc_sol2.o. (eelf32_sparc_sol2.c): New rule. (eelf64_sparc_sol2.c): Likewise. (eelf_x86_64_sol2.c): Likewise. (eelf_i386_sol2.c): Likewise. * Makefile.in: Regenerate. * configure.tgt (i[3-7]86-*-solaris2*): Change targ_emul to elf_i386_sol2. Add elf_i386_ldso, elf_x86_64_sol2 to targ_extra_emuls. (x86_64-*-solaris2*): Change targ_emul to elf_x86_64_sol2. Add elf_x86_64, elf_i386_sol2, elf_i386 to targ_extra_emuls. (sparc-*-solaris2.[0-6]*): Change targ_emul to elf32_sparc_sol2. Add target_extra_emuls. (sparc-*-solaris2*): Change targ_emul to elf32_sparc_sol2. Add elf32_sparc, elf64_sparc_sol2 to targ_extra_emuls. (sparcv9-*-solaris2*): Change targ_emul to elf64_sparc_sol2. Add elf64_sparc, elf32_sparc_sol2 to target_extra_emuls. * emulparams/elf32_sparc_sol2.sh: New file. * emulparams/elf64_sparc_sol2.sh: New file. * emulparams/elf_i386_sol2.sh: New file. * emulparams/elf_x86_64_sol2.sh: New file. * emultempl/solaris2.em: New file. bfd: * elflink.c (bfd_elf_size_dynamic_sections): Don't emit base version twice. Skip it when constructing def.vd_next. * elf32-i386.c (TARGET_LITTLE_SYM): Redefine to bfd_elf32_i386_sol2_vec. (TARGET_LITTLE_NAME): Redefine to elf32-i386-sol2. (elf32_bed): Redefine to elf32_i386_sol2_bed. (elf_backend_want_plt_sym): Redefine to 1. * elf64-x86-64.c (TARGET_LITTLE_SYM): Redefine to bfd_elf64_x86_64_sol2_vec. (TARGET_LITTLE_NAME): Redefine to elf64-x86-64-sol2. (elf64_bed): Redefine to elf64_x86_64_sol2_bed. (elf_backend_want_plt_sym): Redefine to 1. * config.bfd (i[3-7]86-*-solaris2*): Set targ_defvec to bfd_elf32_i386_sol2_vec. Replace bfd_elf64_x86_64_vec by bfd_elf64_x86_64_sol2_vec in targ64_selvecs. (x86_64-*-solaris2*): Set targ_defvec to bfd_elf32_i386_sol2_vec. Replace bfd_elf64_x86_64_vec by bfd_elf64_x86_64_sol2_vec in targ_selvecs. * configure.in: Handle bfd_elf32_i386_sol2_vec, bfd_elf64_x86_64_sol2_vec. * configure: Regenerate. * targets.c (bfd_elf32_i386_sol2_vec): Declare. (bfd_elf64_x86_64_sol2_vec): Declare. (_bfd_target_vector): Add bfd_elf32_i386_sol2_vec, bfd_elf64_x86_64_sol2_vec.
Diffstat (limited to 'ld/emultempl')
-rw-r--r--ld/emultempl/solaris2.em108
1 files changed, 108 insertions, 0 deletions
diff --git a/ld/emultempl/solaris2.em b/ld/emultempl/solaris2.em
new file mode 100644
index 0000000..aa578d2
--- /dev/null
+++ b/ld/emultempl/solaris2.em
@@ -0,0 +1,108 @@
+# 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 ${EMULATION_NAME}
+ Copyright 2010 Free Software Foundation, Inc.
+ Written by Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ This file is part of the GNU Binutils.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#define TARGET_IS_${EMULATION_NAME}
+
+/* The Solaris 2 ABI requires some symbols to always be bound to the base
+ version in a shared object.
+
+ Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
+ File, p.63. */
+static void
+elf_solaris2_before_allocation (void)
+{
+ /* Symbols required to be bound to the base version. */
+ static const char *basever_syms[] = {
+ "_DYNAMIC",
+ "_GLOBAL_OFFSET_TABLE_",
+ "_PROCEDURE_LINKAGE_TABLE_",
+ "_edata",
+ "_end",
+ "_etext",
+ NULL
+ };
+ const char **sym;
+
+ /* Only do this if emitting a shared object and versioning is in place. */
+ if (link_info.shared
+ && (lang_elf_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 = basever_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;
+
+ for (sym = basever_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);
+ }
+ }
+
+ gld${EMULATION_NAME}_before_allocation ();
+}
+
+EOF
+
+LDEMUL_BEFORE_ALLOCATION=elf_solaris2_before_allocation