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authorRainer Orth <ro@TechFak.Uni-Bielefeld.DE>2010-10-12 18:39:36 +0000
committerRainer Orth <ro@TechFak.Uni-Bielefeld.DE>2010-10-12 18:39:36 +0000
commit18a1a992e09a0c3bfc61e6deb828d60a97b92b88 (patch)
treeb8e7d007d83fa3f356038ad017d449e314dd4df2
parentd8b34041e09e904a242f922f3f09d2837399e415 (diff)
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* emultempl/solaris2.em (elf_solaris2_before_allocation): Renamed
basever_syms to global_syms. Emit global_syms into .dynamic section for all executables and shared objects. (elf_solaris2_after_allocation): New function. (LDEMUL_AFTER_ALLOCATION): Use it. * emulparams/solaris2.sh: New file. * emulparams/elf32_sparc_sol2.sh: Use it. * emulparams/elf64_sparc_sol2.sh: Likewise. * emulparams/elf_i386_sol2.sh: Likewise. * emulparams/elf_x86_64_sol2.sh: Likewise. * Makefile.am (eelf32_sparc_sol2.c): Depend on $(srcdir)/emulparams/solaris2.sh. (eelf64_sparc_sol2.c): Likewise. (eelf_x86_64_sol2.c): Likewise. (eelf_i386_sol2.c): Likewise. * Makefile.in: Regenerate.
-rw-r--r--ld/ChangeLog20
-rw-r--r--ld/Makefile.am4
-rw-r--r--ld/Makefile.in4
-rw-r--r--ld/emulparams/elf32_sparc_sol2.sh1
-rw-r--r--ld/emulparams/elf64_sparc_sol2.sh1
-rw-r--r--ld/emulparams/elf_i386_sol2.sh1
-rw-r--r--ld/emulparams/elf_x86_64_sol2.sh1
-rw-r--r--ld/emulparams/solaris2.sh10
-rw-r--r--ld/emultempl/solaris2.em72
9 files changed, 101 insertions, 13 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 24f3bc8..1751368 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,23 @@
+2010-10-12 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * emultempl/solaris2.em (elf_solaris2_before_allocation): Renamed
+ basever_syms to global_syms.
+ Emit global_syms into .dynamic section for all executables and
+ shared objects.
+ (elf_solaris2_after_allocation): New function.
+ (LDEMUL_AFTER_ALLOCATION): Use it.
+ * emulparams/solaris2.sh: New file.
+ * emulparams/elf32_sparc_sol2.sh: Use it.
+ * emulparams/elf64_sparc_sol2.sh: Likewise.
+ * emulparams/elf_i386_sol2.sh: Likewise.
+ * emulparams/elf_x86_64_sol2.sh: Likewise.
+ * Makefile.am (eelf32_sparc_sol2.c): Depend on
+ $(srcdir)/emulparams/solaris2.sh.
+ (eelf64_sparc_sol2.c): Likewise.
+ (eelf_x86_64_sol2.c): Likewise.
+ (eelf_i386_sol2.c): Likewise.
+ * Makefile.in: Regenerate.
+
2010-10-06 Nick Clifton <nickc@redhat.com>
* ld.texinfo: Update description of computation of VMA and LMA
diff --git a/ld/Makefile.am b/ld/Makefile.am
index 982c33c..05a7de6 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -857,6 +857,7 @@ eelf32_sparc.c: $(srcdir)/emulparams/elf32_sparc.sh \
${GENSCRIPTS} elf32_sparc "$(tdir_elf32_sparc)"
eelf32_sparc_sol2.c: $(srcdir)/emulparams/elf32_sparc_sol2.sh \
$(srcdir)/emulparams/elf32_sparc.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em $(ELF_DEPS) \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32_sparc_sol2 "$(tdir_elf32_sparc_sol2)"
@@ -1115,6 +1116,7 @@ eelf64_sparc_fbsd.c: $(srcdir)/emulparams/elf64_sparc_fbsd.sh \
${GENSCRIPTS} elf64_sparc_fbsd "$(tdir_elf64_sparc_fbsd)"
eelf64_sparc_sol2.c: $(srcdir)/emulparams/elf64_sparc_sol2.sh \
$(srcdir)/emulparams/elf64_sparc.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf64_sparc_sol2 "$(tdir_elf64_sparc_sol2)"
@@ -1155,6 +1157,7 @@ eelf_x86_64_fbsd.c: $(srcdir)/emulparams/elf_x86_64_fbsd.sh \
${GENSCRIPTS} elf_x86_64_fbsd "$(tdir_elf_x86_64_fbsd)"
eelf_x86_64_sol2.c: $(srcdir)/emulparams/elf_x86_64_sol2.sh \
$(srcdir)/emulparams/elf_x86_64.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_x86_64_sol2 "$(tdir_elf_x86_64_sol2)"
@@ -1179,6 +1182,7 @@ eelf_i386_ldso.c: $(srcdir)/emulparams/elf_i386_ldso.sh \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_i386_ldso "$(tdir_elf_i386_ldso)"
eelf_i386_sol2.c: $(srcdir)/emulparams/elf_i386_sol2.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_i386_sol2 "$(tdir_elf_i386_sol2)"
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 1c28b73..f365e1c 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -2210,6 +2210,7 @@ eelf32_sparc.c: $(srcdir)/emulparams/elf32_sparc.sh \
${GENSCRIPTS} elf32_sparc "$(tdir_elf32_sparc)"
eelf32_sparc_sol2.c: $(srcdir)/emulparams/elf32_sparc_sol2.sh \
$(srcdir)/emulparams/elf32_sparc.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em $(ELF_DEPS) \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32_sparc_sol2 "$(tdir_elf32_sparc_sol2)"
@@ -2468,6 +2469,7 @@ eelf64_sparc_fbsd.c: $(srcdir)/emulparams/elf64_sparc_fbsd.sh \
${GENSCRIPTS} elf64_sparc_fbsd "$(tdir_elf64_sparc_fbsd)"
eelf64_sparc_sol2.c: $(srcdir)/emulparams/elf64_sparc_sol2.sh \
$(srcdir)/emulparams/elf64_sparc.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf64_sparc_sol2 "$(tdir_elf64_sparc_sol2)"
@@ -2508,6 +2510,7 @@ eelf_x86_64_fbsd.c: $(srcdir)/emulparams/elf_x86_64_fbsd.sh \
${GENSCRIPTS} elf_x86_64_fbsd "$(tdir_elf_x86_64_fbsd)"
eelf_x86_64_sol2.c: $(srcdir)/emulparams/elf_x86_64_sol2.sh \
$(srcdir)/emulparams/elf_x86_64.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_x86_64_sol2 "$(tdir_elf_x86_64_sol2)"
@@ -2532,6 +2535,7 @@ eelf_i386_ldso.c: $(srcdir)/emulparams/elf_i386_ldso.sh \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_i386_ldso "$(tdir_elf_i386_ldso)"
eelf_i386_sol2.c: $(srcdir)/emulparams/elf_i386_sol2.sh \
+ $(srcdir)/emulparams/solaris2.sh \
$(srcdir)/emultempl/solaris2.em \
$(ELF_DEPS) $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf_i386_sol2 "$(tdir_elf_i386_sol2)"
diff --git a/ld/emulparams/elf32_sparc_sol2.sh b/ld/emulparams/elf32_sparc_sol2.sh
index efced57..8fab990 100644
--- a/ld/emulparams/elf32_sparc_sol2.sh
+++ b/ld/emulparams/elf32_sparc_sol2.sh
@@ -1,2 +1,3 @@
. ${srcdir}/emulparams/elf32_sparc.sh
+. ${srcdir}/emulparams/solaris2.sh
EXTRA_EM_FILE=solaris2
diff --git a/ld/emulparams/elf64_sparc_sol2.sh b/ld/emulparams/elf64_sparc_sol2.sh
index 3189b3f..3bf09f6 100644
--- a/ld/emulparams/elf64_sparc_sol2.sh
+++ b/ld/emulparams/elf64_sparc_sol2.sh
@@ -1,2 +1,3 @@
. ${srcdir}/emulparams/elf64_sparc.sh
+. ${srcdir}/emulparams/solaris2.sh
EXTRA_EM_FILE=solaris2
diff --git a/ld/emulparams/elf_i386_sol2.sh b/ld/emulparams/elf_i386_sol2.sh
index 773f3d2..7c18fc6 100644
--- a/ld/emulparams/elf_i386_sol2.sh
+++ b/ld/emulparams/elf_i386_sol2.sh
@@ -1,3 +1,4 @@
. ${srcdir}/emulparams/elf_i386_ldso.sh
+. ${srcdir}/emulparams/solaris2.sh
EXTRA_EM_FILE=solaris2
OUTPUT_FORMAT="elf32-i386-sol2"
diff --git a/ld/emulparams/elf_x86_64_sol2.sh b/ld/emulparams/elf_x86_64_sol2.sh
index e70d592..993f458 100644
--- a/ld/emulparams/elf_x86_64_sol2.sh
+++ b/ld/emulparams/elf_x86_64_sol2.sh
@@ -1,3 +1,4 @@
. ${srcdir}/emulparams/elf_x86_64.sh
+. ${srcdir}/emulparams/solaris2.sh
EXTRA_EM_FILE=solaris2
OUTPUT_FORMAT="elf64-x86-64-sol2"
diff --git a/ld/emulparams/solaris2.sh b/ld/emulparams/solaris2.sh
new file mode 100644
index 0000000..dabbb05
--- /dev/null
+++ b/ld/emulparams/solaris2.sh
@@ -0,0 +1,10 @@
+# If you change this file, please also look at files which source this one:
+# elf32_sparc_sol2.sh, elf64_sparc_sol2.sh, elf_i386_sol2.sh,
+# elf_x86_64_sol2.sh.
+
+# The Solaris 2 ABI requires that two local symbols are present in every
+# executable and shared object.
+# Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
+# File, p.63.
+TEXT_START_SYMBOLS='_START_ = .;'
+OTHER_END_SYMBOLS='_END_ = .;'
diff --git a/ld/emultempl/solaris2.em b/ld/emultempl/solaris2.em
index aa578d2..0b77375 100644
--- a/ld/emultempl/solaris2.em
+++ b/ld/emultempl/solaris2.em
@@ -31,16 +31,17 @@ fragment <<EOF
#define TARGET_IS_${EMULATION_NAME}
-/* The Solaris 2 ABI requires some symbols to always be bound to the base
- version in a shared object.
+/* 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)
{
- /* Symbols required to be bound to the base version. */
- static const char *basever_syms[] = {
+ /* Global symbols required by the Solaris 2 ABI. */
+ static const char *global_syms[] = {
"_DYNAMIC",
"_GLOBAL_OFFSET_TABLE_",
"_PROCEDURE_LINKAGE_TABLE_",
@@ -51,6 +52,28 @@ elf_solaris2_before_allocation (void)
};
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
&& (lang_elf_version_info != NULL || link_info.create_default_symver))
@@ -59,7 +82,7 @@ elf_solaris2_before_allocation (void)
struct bfd_elf_version_tree *basever;
const char *soname;
- for (sym = basever_syms; *sym != NULL; sym++)
+ 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. */
@@ -80,8 +103,32 @@ elf_solaris2_before_allocation (void)
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++)
+ gld${EMULATION_NAME}_before_allocation ();
+}
+
+/* The Solaris 2 ABI requires two local symbols to be emitted for every
+ executable and shared object.
+
+ Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
+ File, p.63. */
+static void
+elf_solaris2_after_allocation (void)
+{
+ /* Local symbols required by the Solaris 2 ABI. Already emitted by
+ emulparams/solaris2.sh. */
+ static const char *local_syms[] = {
+ "_START_",
+ "_END_",
+ NULL
+ };
+ const char **sym;
+
+ /* Do this for both executables and shared objects. */
+ if (!link_info.relocatable)
+ {
+ for (sym = local_syms; *sym != NULL; sym++)
{
struct elf_link_hash_entry *h;
@@ -91,18 +138,17 @@ elf_solaris2_before_allocation (void)
if (h == NULL)
continue;
- /* Undo the hiding done by _bfd_elf_define_linkage_sym. */
- h->forced_local = 0;
- h->other &= ~STV_HIDDEN;
-
- /* Emit it into the .dynamic section, too. */
- bfd_elf_link_record_dynamic_symbol (&link_info, h);
+ /* Turn it local. */
+ h->forced_local = 1;
+ /* Type should be STT_OBJECT, not STT_NOTYPE. */
+ h->type = STT_OBJECT;
}
}
- gld${EMULATION_NAME}_before_allocation ();
+ gld${EMULATION_NAME}_after_allocation ();
}
EOF
LDEMUL_BEFORE_ALLOCATION=elf_solaris2_before_allocation
+LDEMUL_AFTER_ALLOCATION=elf_solaris2_after_allocation