+2011-09-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/12975
+ * bfd-in.h (bfd_elf_size_dynamic_sections): Remove pointer
+ to struct bfd_elf_version_tree.
+
+ * elflink.c (elf_info_failed): Remove verdefs.
+ (_bfd_elf_export_symbol): Updated.
+ _bfd_elf_link_assign_sym_version): Likewise.
+ (bfd_elf_size_dynamic_sections): Remove pointer to struct
+ bfd_elf_version_tree. Updated.
+ (bfd_elf_gc_mark_dynamic_ref_symbol): Check if a symbol is hidden
+ by linker script.
+
+ * linker.c (bfd_hide_sym_by_version): New.
+
+ * bfd-in2.h: Regenerated.
+
2011-09-12 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13178
(bfd *, struct bfd_link_needed_list **);
extern bfd_boolean bfd_elf_size_dynamic_sections
(bfd *, const char *, const char *, const char *, const char *, const char *,
- const char * const *, struct bfd_link_info *, struct bfd_section **,
- struct bfd_elf_version_tree *);
+ const char * const *, struct bfd_link_info *, struct bfd_section **);
extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
(bfd *, struct bfd_link_info *);
extern void bfd_elf_set_dt_needed_name
(bfd *, struct bfd_link_needed_list **);
extern bfd_boolean bfd_elf_size_dynamic_sections
(bfd *, const char *, const char *, const char *, const char *, const char *,
- const char * const *, struct bfd_link_info *, struct bfd_section **,
- struct bfd_elf_version_tree *);
+ const char * const *, struct bfd_link_info *, struct bfd_section **);
extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
(bfd *, struct bfd_link_info *);
extern void bfd_elf_set_dt_needed_name
(struct bfd_elf_version_tree *verdefs,
const char *sym_name, bfd_boolean *hide);
+bfd_boolean bfd_hide_sym_by_version
+ (struct bfd_elf_version_tree *verdefs, const char *sym_name);
+
/* Extracted from simple.c. */
bfd_byte *bfd_simple_get_relocated_section_contents
(bfd *abfd, asection *sec, bfd_byte *outbuf, asymbol **symbol_table);
struct elf_info_failed
{
struct bfd_link_info *info;
- struct bfd_elf_version_tree *verdefs;
bfd_boolean failed;
};
return TRUE;
if (h->dynindx == -1
- && (h->def_regular
- || h->ref_regular))
+ && (h->def_regular || h->ref_regular)
+ && ! bfd_hide_sym_by_version (eif->info->version_info,
+ h->root.root.string))
{
- bfd_boolean hide;
-
- if (eif->verdefs == NULL
- || (bfd_find_version_for_sym (eif->verdefs, h->root.root.string, &hide)
- && !hide))
+ if (! bfd_elf_link_record_dynamic_symbol (eif->info, h))
{
- if (! bfd_elf_link_record_dynamic_symbol (eif->info, h))
- {
- eif->failed = TRUE;
- return FALSE;
- }
+ eif->failed = TRUE;
+ return FALSE;
}
}
}
/* Look for the version. If we find it, it is no longer weak. */
- for (t = sinfo->verdefs; t != NULL; t = t->next)
+ for (t = sinfo->info->version_info; t != NULL; t = t->next)
{
if (strcmp (t->name, p) == 0)
{
version_index = 1;
/* Don't count anonymous version tag. */
- if (sinfo->verdefs != NULL && sinfo->verdefs->vernum == 0)
+ if (sinfo->info->version_info != NULL
+ && sinfo->info->version_info->vernum == 0)
version_index = 0;
- for (pp = &sinfo->verdefs; *pp != NULL; pp = &(*pp)->next)
+ for (pp = &sinfo->info->version_info;
+ *pp != NULL;
+ pp = &(*pp)->next)
++version_index;
t->vernum = version_index;
/* If we don't have a version for this symbol, see if we can find
something. */
- if (h->verinfo.vertree == NULL && sinfo->verdefs != NULL)
+ if (h->verinfo.vertree == NULL && sinfo->info->version_info != NULL)
{
bfd_boolean hide;
- h->verinfo.vertree = bfd_find_version_for_sym (sinfo->verdefs,
- h->root.root.string, &hide);
+ h->verinfo.vertree
+ = bfd_find_version_for_sym (sinfo->info->version_info,
+ h->root.root.string, &hide);
if (h->verinfo.vertree != NULL && hide)
(*bed->elf_backend_hide_symbol) (info, h, TRUE);
}
const char *depaudit,
const char * const *auxiliary_filters,
struct bfd_link_info *info,
- asection **sinterpptr,
- struct bfd_elf_version_tree *verdefs)
+ asection **sinterpptr)
{
bfd_size_type soname_indx;
bfd *dynobj;
}
eif.info = info;
- eif.verdefs = verdefs;
eif.failed = FALSE;
/* If we are supposed to export all symbols into the dynamic symbol
}
/* Make all global versions with definition. */
- for (t = verdefs; t != NULL; t = t->next)
+ for (t = info->version_info; t != NULL; t = t->next)
for (d = t->globals.list; d != NULL; d = d->next)
if (!d->symver && d->literal)
{
/* Attach all the symbols to their version information. */
asvinfo.info = info;
- asvinfo.verdefs = verdefs;
asvinfo.failed = FALSE;
elf_link_hash_traverse (elf_hash_table (info),
{
/* Check if all global versions have a definition. */
all_defined = TRUE;
- for (t = verdefs; t != NULL; t = t->next)
+ for (t = info->version_info; t != NULL; t = t->next)
for (d = t->globals.list; d != NULL; d = d->next)
if (d->literal && !d->symver && !d->script)
{
if (elf_hash_table (info)->dynamic_sections_created)
{
unsigned long section_sym_count;
+ struct bfd_elf_version_tree *verdefs;
asection *s;
/* Set up the version definition section. */
/* We may have created additional version definitions if we are
just linking a regular application. */
- verdefs = asvinfo.verdefs;
+ verdefs = info->version_info;
/* Skip anonymous version tag. */
if (verdefs != NULL && verdefs->vernum == 0)
|| (!info->executable
&& h->def_regular
&& ELF_ST_VISIBILITY (h->other) != STV_INTERNAL
- && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN)))
+ && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN
+ && !bfd_hide_sym_by_version (info->version_info,
+ h->root.root.string))))
h->root.u.def.section->flags |= SEC_KEEP;
return TRUE;
return NULL;
}
+
+/*
+FUNCTION
+ bfd_hide_sym_by_version
+
+SYNOPSIS
+ bfd_boolean bfd_hide_sym_by_version
+ (struct bfd_elf_version_tree *verdefs, const char *sym_name);
+
+DESCRIPTION
+ Search an elf version script tree for symbol versioning
+ info for a given symbol. Return TRUE if the symbol is hidden.
+
+*/
+
+bfd_boolean
+bfd_hide_sym_by_version (struct bfd_elf_version_tree *verdefs,
+ const char *sym_name)
+{
+ bfd_boolean hidden = FALSE;
+ bfd_find_version_for_sym (verdefs, sym_name, &hidden);
+ return hidden;
+}
+2011-09-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/12975
+ * bfdlink.h (bfd_link_info): Add version_info.
+
2011-07-25 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* xregex.h (regoff_t): Define.
};
struct bfd_elf_dynamic_list;
+struct bfd_elf_version_tree;
/* This structure holds all the information needed to communicate
between BFD and the linker when doing a link. */
/* List of symbols should be dynamic. */
struct bfd_elf_dynamic_list *dynamic_list;
+
+ /* The version information. */
+ struct bfd_elf_version_tree *version_info;
};
/* This structures holds a set of callback functions. These are called
+2011-09-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/12975
+ * ldlang.c (lang_elf_version_info): Removed.
+ (lang_register_vers_node): Replace lang_elf_version_info with
+ link_info.version_info.
+ (lang_add_vers_depend): Likewise.
+ * pe-dll.c (process_def_file_and_drectve): Likewise.
+ * emultempl/solaris2.em (elf_solaris2_before_allocation): Likewise.
+
+ * ldlang.h (lang_elf_version_info): Removed.
+
+ * plugin.c (is_visible_from_outside): Check if symbol is hidden
+ by version script.
+
+ * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation):
+ Remove lang_elf_version_info.
+
2011-09-15 Dmitry Gorbachev <d.g.gorbachev@gmail.com>
PR ld/13183
(link_info.output_bfd, command_line.soname, rpath,
command_line.filter_shlib, audit, depaudit,
(const char * const *) command_line.auxiliary_filters,
- &link_info, &sinterp, lang_elf_version_info)))
+ &link_info, &sinterp)))
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
${ELF_INTERPRETER_SET_DEFAULT}
/* 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))
+ && (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;
\f
/* Version handling. This is only useful for ELF. */
-/* This global variable holds the version tree that we build. */
-
-struct bfd_elf_version_tree *lang_elf_version_info;
-
/* If PREV is NULL, return first version pattern matching particular symbol.
If PREV is non-NULL, return first version pattern matching particular
symbol after PREV (previously returned by lang_vers_match). */
if (name == NULL)
name = "";
- if ((name[0] == '\0' && lang_elf_version_info != NULL)
- || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0'))
+ if (link_info.version_info != NULL
+ && (name[0] == '\0' || link_info.version_info->name[0] == '\0'))
{
einfo (_("%X%P: anonymous version tag cannot be combined"
" with other version tags\n"));
}
/* Make sure this node has a unique name. */
- for (t = lang_elf_version_info; t != NULL; t = t->next)
+ for (t = link_info.version_info; t != NULL; t = t->next)
if (strcmp (t->name, name) == 0)
einfo (_("%X%P: duplicate version tag `%s'\n"), name);
for (e1 = version->globals.list; e1 != NULL; e1 = e1->next)
{
- for (t = lang_elf_version_info; t != NULL; t = t->next)
+ for (t = link_info.version_info; t != NULL; t = t->next)
{
struct bfd_elf_version_expr *e2;
for (e1 = version->locals.list; e1 != NULL; e1 = e1->next)
{
- for (t = lang_elf_version_info; t != NULL; t = t->next)
+ for (t = link_info.version_info; t != NULL; t = t->next)
{
struct bfd_elf_version_expr *e2;
else
version->vernum = 0;
- for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next)
+ for (pp = &link_info.version_info; *pp != NULL; pp = &(*pp)->next)
;
*pp = version;
}
ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret);
ret->next = list;
- for (t = lang_elf_version_info; t != NULL; t = t->next)
+ for (t = link_info.version_info; t != NULL; t = t->next)
{
if (strcmp (t->name, name) == 0)
{
(etree_type *, int, fill_type *, const char *,
lang_output_section_phdr_list *, const char *);
-extern struct bfd_elf_version_tree *lang_elf_version_info;
-
extern struct bfd_elf_version_expr *lang_new_vers_pattern
(struct bfd_elf_version_expr *, const char *, const char *, bfd_boolean);
extern struct bfd_elf_version_tree *lang_new_vers_node
bfd_boolean would_export = symbols[j]->section != &bfd_und_section
&& ((symbols[j]->flags & BSF_GLOBAL)
|| (symbols[j]->flags == 0));
- if (lang_elf_version_info && would_export)
- {
- bfd_boolean hide = 0;
- (void) bfd_find_version_for_sym (lang_elf_version_info,
- symbols[j]->name, &hide);
- would_export = !hide;
- }
+ if (link_info.version_info && would_export)
+ would_export
+ = !bfd_hide_sym_by_version (link_info.version_info,
+ symbols[j]->name);
if (would_export)
{
const char *sn = symbols[j]->name;
return TRUE;
if (link_info.export_dynamic || link_info.shared)
{
+ /* Check if symbol is hidden by version script. */
+ if (bfd_hide_sym_by_version (link_info.version_info,
+ blhe->root.string))
+ return FALSE;
/* Only ELF symbols really have visibility. */
if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
{
+2011-09-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/12975
+ * ld-elf/pr12975.d: New.
+ * ld-elf/pr12975.s: Likewise.
+ * ld-elf/pr12975.t: Likewise.
+
2011-09-12 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13178
--- /dev/null
+#ld: --gc-sections -shared -version-script pr12975.t
+#readelf: -s --wide
+#notarget: arc-*-* d30v-*-* dlx-*-* i960-*-* or32-*-* pj*-*-*
+#notarget: hppa64-*-* i370-*-* i860-*-* ia64-*-* mep-*-* mn10200-*-*
+# generic linker targets don't support --gc-sections, nor do a bunch of others
+
+#failif
+#...
+ +[0-9]+: +[0-9a-f]+ +[0-9]+ +FUNC +LOCAL +DEFAULT +[1-9]+ bar
+#...
--- /dev/null
+ .section .text.foo,"ax",%progbits
+ .globl foo
+ .type foo, %function
+foo:
+ .byte 0
+ .section .text.bar,"ax",%progbits
+ .type bar, %function
+ .globl bar
+bar:
+ .byte 0
--- /dev/null
+{
+global:
+ foo;
+local:
+ *;
+};
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