+
+phdr_type:
+ exp
+ {
+ $$ = $1;
+
+ if ($1->type.node_class == etree_name
+ && $1->type.node_code == NAME)
+ {
+ const char *s;
+ unsigned int i;
+ static const char * const phdr_types[] =
+ {
+ "PT_NULL", "PT_LOAD", "PT_DYNAMIC",
+ "PT_INTERP", "PT_NOTE", "PT_SHLIB",
+ "PT_PHDR", "PT_TLS"
+ };
+
+ s = $1->name.name;
+ for (i = 0;
+ i < sizeof phdr_types / sizeof phdr_types[0];
+ i++)
+ if (strcmp (s, phdr_types[i]) == 0)
+ {
+ $$ = exp_intop (i);
+ break;
+ }
+ if (i == sizeof phdr_types / sizeof phdr_types[0])
+ {
+ if (strcmp (s, "PT_GNU_EH_FRAME") == 0)
+ $$ = exp_intop (0x6474e550);
+ else if (strcmp (s, "PT_GNU_STACK") == 0)
+ $$ = exp_intop (0x6474e551);
+ else if (strcmp (s, "PT_GNU_RELRO") == 0)
+ $$ = exp_intop (0x6474e552);
+ else if (strcmp (s, "PT_GNU_PROPERTY") == 0)
+ $$ = exp_intop (0x6474e553);
+ else
+ {
+ einfo (_("\
+%X%P:%pS: unknown phdr type `%s' (try integer literal)\n"),
+ NULL, s);
+ $$ = exp_intop (0);
+ }
+ }
+ }
+ }
+ ;
+
+phdr_qualifiers:
+ /* empty */
+ {
+ memset (&$$, 0, sizeof (struct phdr_info));
+ }
+ | NAME phdr_val phdr_qualifiers
+ {
+ $$ = $3;
+ if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
+ $$.filehdr = true;
+ else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
+ $$.phdrs = true;
+ else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
+ $$.flags = $2;
+ else
+ einfo (_("%X%P:%pS: PHDRS syntax error at `%s'\n"),
+ NULL, $1);
+ }
+ | AT '(' exp ')' phdr_qualifiers
+ {
+ $$ = $5;
+ $$.at = $3;
+ }
+ ;
+
+phdr_val:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | '(' exp ')'
+ {
+ $$ = $2;
+ }
+ ;
+
+dynamic_list_file:
+ {
+ ldlex_version_file ();
+ PUSH_ERROR (_("dynamic list"));
+ }
+ dynamic_list_nodes
+ {
+ ldlex_popstate ();
+ POP_ERROR ();
+ }
+ ;
+
+dynamic_list_nodes:
+ dynamic_list_node
+ | dynamic_list_nodes dynamic_list_node
+ ;
+
+dynamic_list_node:
+ '{' dynamic_list_tag '}' ';'
+ ;
+
+dynamic_list_tag:
+ vers_defns ';'
+ {
+ lang_append_dynamic_list (current_dynamic_list_p, $1);
+ }
+ ;
+
+/* This syntax is used within an external version script file. */
+
+version_script_file:
+ {
+ ldlex_version_file ();
+ PUSH_ERROR (_("VERSION script"));
+ }
+ vers_nodes
+ {
+ ldlex_popstate ();
+ POP_ERROR ();
+ }
+ ;
+
+/* This is used within a normal linker script file. */
+
+version:
+ {
+ ldlex_version_script ();
+ }
+ VERSIONK '{' vers_nodes '}'
+ {
+ ldlex_popstate ();
+ }
+ ;
+
+vers_nodes:
+ vers_node
+ | vers_nodes vers_node
+ ;
+
+vers_node:
+ '{' vers_tag '}' ';'
+ {
+ lang_register_vers_node (NULL, $2, NULL);
+ }
+ | VERS_TAG '{' vers_tag '}' ';'
+ {
+ lang_register_vers_node ($1, $3, NULL);
+ }
+ | VERS_TAG '{' vers_tag '}' verdep ';'
+ {
+ lang_register_vers_node ($1, $3, $5);
+ }
+ ;
+
+verdep:
+ VERS_TAG
+ {
+ $$ = lang_add_vers_depend (NULL, $1);
+ }
+ | verdep VERS_TAG
+ {
+ $$ = lang_add_vers_depend ($1, $2);
+ }
+ ;
+
+vers_tag:
+ /* empty */
+ {
+ $$ = lang_new_vers_node (NULL, NULL);
+ }
+ | vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($1, NULL);
+ }
+ | GLOBAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($3, NULL);
+ }
+ | LOCAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node (NULL, $3);
+ }
+ | GLOBAL ':' vers_defns ';' LOCAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($3, $7);
+ }
+ ;
+
+vers_defns:
+ VERS_IDENTIFIER
+ {
+ $$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, false);
+ }
+ | NAME
+ {
+ $$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, true);
+ }
+ | vers_defns ';' VERS_IDENTIFIER
+ {
+ $$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, false);
+ }
+ | vers_defns ';' NAME
+ {
+ $$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, true);
+ }
+ | vers_defns ';' EXTERN NAME '{'
+ {
+ $<name>$ = ldgram_vers_current_lang;
+ ldgram_vers_current_lang = $4;
+ }
+ vers_defns opt_semicolon '}'
+ {
+ struct bfd_elf_version_expr *pat;
+ for (pat = $7; pat->next != NULL; pat = pat->next);
+ pat->next = $1;
+ $$ = $7;
+ ldgram_vers_current_lang = $<name>6;
+ }
+ | EXTERN NAME '{'
+ {
+ $<name>$ = ldgram_vers_current_lang;
+ ldgram_vers_current_lang = $2;
+ }
+ vers_defns opt_semicolon '}'
+ {
+ $$ = $5;
+ ldgram_vers_current_lang = $<name>4;
+ }
+ | GLOBAL
+ {
+ $$ = lang_new_vers_pattern (NULL, "global", ldgram_vers_current_lang, false);
+ }
+ | vers_defns ';' GLOBAL
+ {
+ $$ = lang_new_vers_pattern ($1, "global", ldgram_vers_current_lang, false);
+ }
+ | LOCAL
+ {
+ $$ = lang_new_vers_pattern (NULL, "local", ldgram_vers_current_lang, false);
+ }
+ | vers_defns ';' LOCAL
+ {
+ $$ = lang_new_vers_pattern ($1, "local", ldgram_vers_current_lang, false);
+ }
+ | EXTERN
+ {
+ $$ = lang_new_vers_pattern (NULL, "extern", ldgram_vers_current_lang, false);
+ }
+ | vers_defns ';' EXTERN
+ {
+ $$ = lang_new_vers_pattern ($1, "extern", ldgram_vers_current_lang, false);
+ }
+ ;
+
+opt_semicolon:
+ /* empty */
+ | ';'
+ ;
+