ld/
* ld.h (ld_config_type): New flag member separate_code. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set it based on $SEPARATE_CODE. * ldlang.c (ldlang_override_segment_assignment): If it's set, then always return TRUE when SEC_CODE differs between the sections.
This commit is contained in:
parent
e0799d78b1
commit
4724d37ec2
@ -1,3 +1,11 @@
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2012-11-21 Roland McGrath <mcgrathr@google.com>
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* ld.h (ld_config_type): New flag member separate_code.
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* emultempl/elf32.em
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(gld${EMULATION_NAME}_before_parse): Set it based on $SEPARATE_CODE.
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* ldlang.c (ldlang_override_segment_assignment): If it's set, then
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always return TRUE when SEC_CODE differs between the sections.
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2012-11-20 H.J. Lu <hongjiu.lu@intel.com>
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* ld.texinfo: Document "-z global".
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@ -104,6 +104,7 @@ gld${EMULATION_NAME}_before_parse (void)
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ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
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input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
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config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
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config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
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}
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EOF
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@ -140,7 +141,7 @@ gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
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return FALSE;
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bfd_elf_set_dyn_lib_class (entry->the_bfd,
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(enum dynamic_lib_link_class) link_class);
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(enum dynamic_lib_link_class) link_class);
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/* Continue on with normal load_symbols processing. */
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return FALSE;
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@ -1104,7 +1105,7 @@ gld${EMULATION_NAME}_after_open (void)
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{
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struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
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struct build_id_info *b =
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(struct build_id_info *) xmalloc (sizeof *b);
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(struct build_id_info *) xmalloc (sizeof *b);
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b->style = link_info.emit_note_gnu_build_id;
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b->sec = s;
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@ -1439,7 +1440,7 @@ if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation;
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fragment <<EOF
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/* used by before_allocation and handle_option. */
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static void
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static void
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gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
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{
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if (*to == NULL)
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@ -1507,7 +1508,7 @@ gld${EMULATION_NAME}_before_allocation (void)
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{
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const char *audit_libs = elf_dt_audit (abfd);
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/* If the input bfd contains an audit entry, we need to add it as
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/* If the input bfd contains an audit entry, we need to add it as
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a dep audit entry. */
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if (audit_libs && *audit_libs != '\0')
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{
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@ -2204,7 +2205,7 @@ EOF
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if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
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fragment <<EOF
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case OPTION_AUDIT:
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gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
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gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
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break;
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case 'P':
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@ -2393,7 +2394,7 @@ if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
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fragment <<EOF
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fprintf (file, _("\
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-P AUDITLIB, --depaudit=AUDITLIB\n" "\
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Specify a library to use for auditing dependencies\n"));
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Specify a library to use for auditing dependencies\n"));
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fprintf (file, _("\
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--disable-new-dtags Disable new dynamic tags\n"));
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fprintf (file, _("\
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@ -2422,7 +2423,7 @@ if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
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fragment <<EOF
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fprintf (file, _("\
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-z global Make symbols in DSO available for subsequently\n\
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loaded objects\n"));
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loaded objects\n"));
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fprintf (file, _("\
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-z initfirst Mark DSO to be initialized first at runtime\n"));
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fprintf (file, _("\
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@ -2469,7 +2470,7 @@ fragment <<EOF
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-z now Mark object non-lazy runtime binding\n"));
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fprintf (file, _("\
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-z origin Mark object requiring immediate \$ORIGIN\n\
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processing at runtime\n"));
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processing at runtime\n"));
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fprintf (file, _("\
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-z relro Create RELRO program header\n"));
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fprintf (file, _("\
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5
ld/ld.h
5
ld/ld.h
@ -82,7 +82,7 @@ typedef struct name_list {
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name_list;
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typedef enum {sort_none, sort_ascending, sort_descending} sort_order;
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/* A wildcard specification. */
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typedef enum {
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@ -274,6 +274,9 @@ typedef struct {
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numbers everywhere. */
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bfd_boolean sane_expr;
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/* If set, code and non-code sections should never be in one segment. */
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bfd_boolean separate_code;
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/* The rpath separation character. Usually ':'. */
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char rpath_separator;
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68
ld/ldlang.c
68
ld/ldlang.c
@ -878,8 +878,8 @@ walk_wild_file (lang_wild_statement_type *s,
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if (member->usrdata != NULL)
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{
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walk_wild_section (s,
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(lang_input_statement_type *) member->usrdata,
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callback, data);
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(lang_input_statement_type *) member->usrdata,
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callback, data);
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}
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member = bfd_openr_next_archived_file (f->the_bfd, member);
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@ -1050,7 +1050,7 @@ new_afile (const char *name,
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else
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{
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p = (lang_input_statement_type *)
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stat_alloc (sizeof (lang_input_statement_type));
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stat_alloc (sizeof (lang_input_statement_type));
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p->header.type = lang_input_statement_enum;
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p->header.next = NULL;
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}
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@ -1148,7 +1148,7 @@ output_section_statement_newfunc (struct bfd_hash_entry *entry,
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if (entry == NULL)
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{
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entry = (struct bfd_hash_entry *) bfd_hash_allocate (table,
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sizeof (*ret));
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sizeof (*ret));
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if (entry == NULL)
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return entry;
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}
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@ -1283,12 +1283,12 @@ lang_memory_region_lookup (const char *const name, bfd_boolean create)
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for (r = lang_memory_region_list; r != NULL; r = r->next)
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for (n = &r->name_list; n != NULL; n = n->next)
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if (strcmp (n->name, name) == 0)
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{
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if (create)
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einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"),
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NULL, name);
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return r;
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}
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{
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if (create)
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einfo (_("%P:%S: warning: redeclaration of memory region `%s'\n"),
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NULL, name);
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return r;
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}
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if (!create && strcmp (name, DEFAULT_MEMORY_REGION))
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einfo (_("%P:%S: warning: memory region `%s' not declared\n"),
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@ -1334,19 +1334,19 @@ lang_memory_region_alias (const char * alias, const char * region_name)
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for (r = lang_memory_region_list; r != NULL; r = r->next)
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for (n = &r->name_list; n != NULL; n = n->next)
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{
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if (region == NULL && strcmp (n->name, region_name) == 0)
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region = r;
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if (strcmp (n->name, alias) == 0)
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einfo (_("%F%P:%S: error: redefinition of memory region "
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"alias `%s'\n"),
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NULL, alias);
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if (region == NULL && strcmp (n->name, region_name) == 0)
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region = r;
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if (strcmp (n->name, alias) == 0)
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einfo (_("%F%P:%S: error: redefinition of memory region "
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"alias `%s'\n"),
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NULL, alias);
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}
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/* Check if the target region exists. */
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if (region == NULL)
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einfo (_("%F%P:%S: error: memory region `%s' "
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"for alias `%s' does not exist\n"),
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NULL, region_name, alias);
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"for alias `%s' does not exist\n"),
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NULL, region_name, alias);
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/* Add alias to region name list. */
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n = (lang_memory_region_name *) stat_alloc (sizeof (lang_memory_region_name));
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@ -1777,7 +1777,7 @@ lang_insert_orphan (asection *s,
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os_tail = ((lang_output_section_statement_type **)
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lang_output_section_statement.tail);
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os = lang_enter_output_section_statement (secname, address, normal_section,
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NULL, NULL, NULL, constraint);
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NULL, NULL, NULL, constraint);
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ps = NULL;
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if (config.build_constructors && *os_tail == os)
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@ -2080,14 +2080,14 @@ sort_def_symbol (struct bfd_link_hash_entry *hash_entry,
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struct map_symbol_def *def;
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ud = (struct fat_user_section_struct *)
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get_userdata (hash_entry->u.def.section);
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get_userdata (hash_entry->u.def.section);
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if (! ud)
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{
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/* ??? What do we have to do to initialize this beforehand? */
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/* The first time we get here is bfd_abs_section... */
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init_map_userdata (0, hash_entry->u.def.section, 0);
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ud = (struct fat_user_section_struct *)
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get_userdata (hash_entry->u.def.section);
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get_userdata (hash_entry->u.def.section);
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}
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else if (!ud->map_symbol_def_tail)
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ud->map_symbol_def_tail = &ud->map_symbol_def_head;
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@ -2125,7 +2125,7 @@ init_os (lang_output_section_statement_type *s, flagword flags)
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if (!link_info.reduce_memory_overheads)
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{
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fat_section_userdata_type *new_userdata = (fat_section_userdata_type *)
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stat_alloc (sizeof (fat_section_userdata_type));
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stat_alloc (sizeof (fat_section_userdata_type));
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memset (new_userdata, 0, sizeof (fat_section_userdata_type));
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get_userdata (s->bfd_section) = new_userdata;
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}
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@ -2264,7 +2264,7 @@ lang_add_section (lang_statement_list_type *ptr,
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keep = bfd_lookup_section_flags (&link_info, sflag_info, section);
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if (!keep)
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return;
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return;
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}
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if (section->output_section != NULL)
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@ -4151,7 +4151,7 @@ print_all_symbols (asection *sec)
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entries[i] = def->entry;
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qsort (entries, ud->map_symbol_def_count, sizeof (*entries),
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hash_entry_addr_cmp);
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hash_entry_addr_cmp);
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/* Print the symbols. */
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for (i = 0; i < ud->map_symbol_def_count; i++)
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@ -4583,7 +4583,7 @@ insert_pad (lang_statement_union_type **ptr,
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{
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/* Make a new padding statement, linked into existing chain. */
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pad = (lang_statement_union_type *)
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stat_alloc (sizeof (lang_padding_statement_type));
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stat_alloc (sizeof (lang_padding_statement_type));
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pad->header.next = *ptr;
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*ptr = pad;
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pad->header.type = lang_padding_statement_enum;
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@ -5361,6 +5361,12 @@ ldlang_override_segment_assignment (struct bfd_link_info * info ATTRIBUTE_UNUSED
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if (current_section == NULL || previous_section == NULL)
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return new_segment;
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/* If this flag is set, the target never wants code and non-code
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sections comingled in the same segment. */
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if (config.separate_code
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&& ((current_section->flags ^ previous_section->flags) & SEC_CODE))
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return TRUE;
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/* Find the memory regions associated with the two sections.
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We call lang_output_section_find() here rather than scanning the list
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of output sections looking for a matching section pointer because if
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@ -7237,7 +7243,7 @@ lang_record_phdrs (void)
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{
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alc *= 2;
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secs = (asection **) xrealloc (secs,
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alc * sizeof (asection *));
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alc * sizeof (asection *));
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}
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secs[c] = os->bfd_section;
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++c;
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@ -7539,7 +7545,7 @@ lang_vers_match (struct bfd_elf_version_expr_head *head,
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{
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e.pattern = c_sym;
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expr = (struct bfd_elf_version_expr *)
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htab_find ((htab_t) head->htab, &e);
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htab_find ((htab_t) head->htab, &e);
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while (expr && strcmp (expr->pattern, c_sym) == 0)
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if (expr->mask == BFD_ELF_VERSION_C_TYPE)
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goto out_ret;
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@ -7552,7 +7558,7 @@ lang_vers_match (struct bfd_elf_version_expr_head *head,
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{
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e.pattern = cxx_sym;
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expr = (struct bfd_elf_version_expr *)
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htab_find ((htab_t) head->htab, &e);
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htab_find ((htab_t) head->htab, &e);
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while (expr && strcmp (expr->pattern, cxx_sym) == 0)
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if (expr->mask == BFD_ELF_VERSION_CXX_TYPE)
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goto out_ret;
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@ -7565,7 +7571,7 @@ lang_vers_match (struct bfd_elf_version_expr_head *head,
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{
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e.pattern = java_sym;
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expr = (struct bfd_elf_version_expr *)
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htab_find ((htab_t) head->htab, &e);
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htab_find ((htab_t) head->htab, &e);
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while (expr && strcmp (expr->pattern, java_sym) == 0)
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if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE)
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goto out_ret;
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@ -7862,7 +7868,7 @@ lang_register_vers_node (const char *name,
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if (t->locals.htab && e1->literal)
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{
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e2 = (struct bfd_elf_version_expr *)
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htab_find ((htab_t) t->locals.htab, e1);
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htab_find ((htab_t) t->locals.htab, e1);
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while (e2 && strcmp (e1->pattern, e2->pattern) == 0)
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{
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if (e1->mask == e2->mask)
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@ -7889,7 +7895,7 @@ lang_register_vers_node (const char *name,
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if (t->globals.htab && e1->literal)
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{
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e2 = (struct bfd_elf_version_expr *)
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htab_find ((htab_t) t->globals.htab, e1);
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htab_find ((htab_t) t->globals.htab, e1);
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while (e2 && strcmp (e1->pattern, e2->pattern) == 0)
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{
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if (e1->mask == e2->mask)
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