-/* yyscript.y -- linker script grammer for gold. */
+/* yyscript.y -- linker script grammar for gold. */
-/* Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2006-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor <iant@google.com>.
This file is part of gold.
#include <stddef.h>
#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
#include "script-c.h"
uint64_t integer;
/* An expression. */
Expression_ptr expr;
- // Used for version scripts and within VERSION {}
+ /* An output section header. */
+ struct Parser_output_section_header output_section_header;
+ /* An output section trailer. */
+ struct Parser_output_section_trailer output_section_trailer;
+ /* A section constraint. */
+ enum Section_constraint constraint;
+ /* A complete input section specification. */
+ struct Input_section_spec input_section_spec;
+ /* A list of wildcard specifications, with exclusions. */
+ struct Wildcard_sections wildcard_sections;
+ /* A single wildcard specification. */
+ struct Wildcard_section wildcard_section;
+ /* A list of strings. */
+ String_list_ptr string_list;
+ /* Information for a program header. */
+ struct Phdr_info phdr_info;
+ /* Used for version scripts and within VERSION {}. */
struct Version_dependency_list* deplist;
struct Version_expression_list* versyms;
struct Version_tree* versnode;
+ enum Script_section_type section_type;
}
/* Operators, including a precedence table for expressions. */
%token FORCE_COMMON_ALLOCATION
%token GLOBAL /* global */
%token GROUP
+%token HIDDEN
%token HLL
%token INCLUDE
-%token INFO
%token INHIBIT_COMMON_ALLOCATION
+%token INFO
%token INPUT
%token KEEP
+%token LEN
%token LENGTH /* LENGTH, l, len */
%token LOADADDR
%token LOCAL /* local */
%token NOLOAD
%token ONLY_IF_RO
%token ONLY_IF_RW
+%token ORG
%token ORIGIN /* ORIGIN, o, org */
%token OUTPUT
%token OUTPUT_ARCH
%token SIZEOF
%token SIZEOF_HEADERS /* SIZEOF_HEADERS, sizeof_headers */
%token SORT_BY_ALIGNMENT
+%token SORT_BY_INIT_PRIORITY
%token SORT_BY_NAME
%token SPECIAL
%token SQUAD
%token PARSING_LINKER_SCRIPT
%token PARSING_VERSION_SCRIPT
%token PARSING_DEFSYM
+%token PARSING_DYNAMIC_LIST
+%token PARSING_SECTIONS_BLOCK
+%token PARSING_SECTION_COMMANDS
+%token PARSING_MEMORY_DEF
/* Non-terminal types, where needed. */
%type <expr> parse_exp exp
+%type <expr> opt_at opt_align opt_subalign opt_fill
+%type <output_section_header> section_header opt_address_and_section_type
+%type <section_type> section_type
+%type <output_section_trailer> section_trailer
+%type <constraint> opt_constraint
+%type <string_list> opt_phdr
+%type <integer> data_length
+%type <input_section_spec> input_section_no_keep
+%type <wildcard_sections> wildcard_sections
+%type <wildcard_section> wildcard_file wildcard_section
+%type <string_list> exclude_names
+%type <string> wildcard_name
+%type <integer> phdr_type memory_attr
+%type <phdr_info> phdr_info
%type <versyms> vers_defns
%type <versnode> vers_tag
%type <deplist> verdep
PARSING_LINKER_SCRIPT linker_script
| PARSING_VERSION_SCRIPT version_script
| PARSING_DEFSYM defsym_expr
+ | PARSING_DYNAMIC_LIST dynamic_list_expr
+ | PARSING_SECTIONS_BLOCK sections_block
+ | PARSING_SECTION_COMMANDS section_cmds
+ | PARSING_MEMORY_DEF memory_defs
;
/* A file contains a list of commands. */
/* A command which may appear at top level of a linker script. */
file_cmd:
- GROUP
+ EXTERN '(' extern_name_list ')'
+ | FORCE_COMMON_ALLOCATION
+ { script_set_common_allocation(closure, 1); }
+ | GROUP
{ script_start_group(closure); }
'(' input_list ')'
{ script_end_group(closure); }
+ | INHIBIT_COMMON_ALLOCATION
+ { script_set_common_allocation(closure, 0); }
+ | INPUT '(' input_list ')'
+ | MEMORY '{' memory_defs '}'
| OPTION '(' string ')'
{ script_parse_option(closure, $3.value, $3.length); }
+ | OUTPUT_FORMAT '(' string ')'
+ {
+ if (!script_check_output_format(closure, $3.value, $3.length,
+ NULL, 0, NULL, 0))
+ YYABORT;
+ }
+ | OUTPUT_FORMAT '(' string ',' string ',' string ')'
+ {
+ if (!script_check_output_format(closure, $3.value, $3.length,
+ $5.value, $5.length,
+ $7.value, $7.length))
+ YYABORT;
+ }
+ | PHDRS '{' phdrs_defs '}'
+ | SEARCH_DIR '(' string ')'
+ { script_add_search_dir(closure, $3.value, $3.length); }
+ | SECTIONS '{'
+ { script_start_sections(closure); }
+ sections_block '}'
+ { script_finish_sections(closure); }
+ | TARGET_K '(' string ')'
+ { script_set_target(closure, $3.value, $3.length); }
| VERSIONK '{'
{ script_push_lex_into_version_mode(closure); }
version_script '}'
{ script_pop_lex_mode(closure); }
- | file_or_sections_cmd
+ | ENTRY '(' string ')'
+ { script_set_entry(closure, $3.value, $3.length); }
+ | assignment end
+ | ASSERT_K '(' parse_exp ',' string ')'
+ { script_add_assertion(closure, $3, $5.value, $5.length); }
+ | INCLUDE string
+ { script_include_directive(PARSING_LINKER_SCRIPT, closure,
+ $2.value, $2.length); }
| ignore_cmd
+ | ';'
;
/* Top level commands which we ignore. The GNU linker uses these to
these is more-or-less OK since most scripts simply explicitly
choose the default. */
ignore_cmd:
- OUTPUT_FORMAT '(' string ')'
- | OUTPUT_FORMAT '(' string ',' string ',' string ')'
- | OUTPUT_ARCH '(' string ')'
+ OUTPUT_ARCH '(' string ')'
+ ;
+
+/* A list of external undefined symbols. We put the lexer into
+ expression mode so that commas separate names; this is what the GNU
+ linker does. */
+
+extern_name_list:
+ { script_push_lex_into_expression_mode(closure); }
+ extern_name_list_body
+ { script_pop_lex_mode(closure); }
+ ;
+
+extern_name_list_body:
+ string
+ { script_add_extern(closure, $1.value, $1.length); }
+ | extern_name_list_body string
+ { script_add_extern(closure, $2.value, $2.length); }
+ | extern_name_list_body ',' string
+ { script_add_extern(closure, $3.value, $3.length); }
;
/* A list of input file names. */
input_list_element:
string
{ script_add_file(closure, $1.value, $1.length); }
+ | '-' STRING
+ { script_add_library(closure, $2.value, $2.length); }
| AS_NEEDED
{ script_start_as_needed(closure); }
'(' input_list ')'
{ script_end_as_needed(closure); }
;
-/* A command which may appear at the top level of a linker script, or
- within a SECTIONS block. */
-file_or_sections_cmd:
+/* Commands in a SECTIONS block. */
+sections_block:
+ sections_block section_block_cmd
+ | /* empty */
+ ;
+
+/* A command which may appear within a SECTIONS block. */
+section_block_cmd:
ENTRY '(' string ')'
{ script_set_entry(closure, $3.value, $3.length); }
| assignment end
+ | ASSERT_K '(' parse_exp ',' string ')'
+ { script_add_assertion(closure, $3, $5.value, $5.length); }
+ | INCLUDE string
+ { script_include_directive(PARSING_SECTIONS_BLOCK, closure,
+ $2.value, $2.length); }
+ | string section_header
+ { script_start_output_section(closure, $1.value, $1.length, &$2); }
+ '{' section_cmds '}' section_trailer
+ { script_finish_output_section(closure, &$7); }
+ ;
+
+/* The header of an output section in a SECTIONS block--everything
+ after the name. */
+section_header:
+ { script_push_lex_into_expression_mode(closure); }
+ opt_address_and_section_type opt_at opt_align opt_subalign
+ { script_pop_lex_mode(closure); }
+ opt_constraint
+ {
+ $$.address = $2.address;
+ $$.section_type = $2.section_type;
+ $$.load_address = $3;
+ $$.align = $4;
+ $$.subalign = $5;
+ $$.constraint = $7;
+ }
+ ;
+
+/* The optional address followed by the optional section type. This
+ is a separate nonterminal to avoid a shift/reduce conflict on
+ '(' in section_header. */
+
+opt_address_and_section_type:
+ ':'
+ {
+ $$.address = NULL;
+ $$.section_type = SCRIPT_SECTION_TYPE_NONE;
+ }
+ | '(' ')' ':'
+ {
+ $$.address = NULL;
+ $$.section_type = SCRIPT_SECTION_TYPE_NONE;
+ }
+ | exp ':'
+ {
+ $$.address = $1;
+ $$.section_type = SCRIPT_SECTION_TYPE_NONE;
+ }
+ | exp '(' ')' ':'
+ {
+ $$.address = $1;
+ $$.section_type = SCRIPT_SECTION_TYPE_NONE;
+ }
+ | '(' section_type ')' ':'
+ {
+ $$.address = NULL;
+ $$.section_type = $2;
+ }
+ | exp '(' section_type ')' ':'
+ {
+ $$.address = $1;
+ $$.section_type = $3;
+ }
+ ;
+
+/* We only support NOLOAD. */
+section_type:
+ NOLOAD
+ { $$ = SCRIPT_SECTION_TYPE_NOLOAD; }
+ | DSECT
+ {
+ yyerror(closure, "DSECT section type is unsupported");
+ $$ = SCRIPT_SECTION_TYPE_DSECT;
+ }
+ | COPY
+ {
+ yyerror(closure, "COPY section type is unsupported");
+ $$ = SCRIPT_SECTION_TYPE_COPY;
+ }
+ | INFO
+ {
+ yyerror(closure, "INFO section type is unsupported");
+ $$ = SCRIPT_SECTION_TYPE_INFO;
+ }
+ | OVERLAY
+ {
+ yyerror(closure, "OVERLAY section type is unsupported");
+ $$ = SCRIPT_SECTION_TYPE_OVERLAY;
+ }
+ ;
+
+/* The address at which an output section should be loaded. */
+opt_at:
+ /* empty */
+ { $$ = NULL; }
+ | AT '(' exp ')'
+ { $$ = $3; }
+ ;
+
+/* The alignment of an output section. */
+opt_align:
+ /* empty */
+ { $$ = NULL; }
+ | ALIGN_K '(' exp ')'
+ { $$ = $3; }
+ ;
+
+/* The input section alignment within an output section. */
+opt_subalign:
+ /* empty */
+ { $$ = NULL; }
+ | SUBALIGN '(' exp ')'
+ { $$ = $3; }
+ ;
+
+/* A section constraint. */
+opt_constraint:
+ /* empty */
+ { $$ = CONSTRAINT_NONE; }
+ | ONLY_IF_RO
+ { $$ = CONSTRAINT_ONLY_IF_RO; }
+ | ONLY_IF_RW
+ { $$ = CONSTRAINT_ONLY_IF_RW; }
+ | SPECIAL
+ { $$ = CONSTRAINT_SPECIAL; }
+ ;
+
+/* The trailer of an output section in a SECTIONS block. */
+section_trailer:
+ opt_memspec opt_at_memspec opt_phdr opt_fill opt_comma
+ {
+ $$.fill = $4;
+ $$.phdrs = $3;
+ }
+ ;
+
+/* A memory specification for an output section. */
+opt_memspec:
+ '>' string
+ { script_set_section_region(closure, $2.value, $2.length, 1); }
+ | /* empty */
+ ;
+
+/* A memory specification for where to load an output section. */
+opt_at_memspec:
+ AT '>' string
+ { script_set_section_region(closure, $3.value, $3.length, 0); }
+ | /* empty */
+ ;
+
+/* The program segment an output section should go into. */
+opt_phdr:
+ opt_phdr ':' string
+ { $$ = script_string_list_push_back($1, $3.value, $3.length); }
+ | /* empty */
+ { $$ = NULL; }
+ ;
+
+/* The value to use to fill an output section. FIXME: This does not
+ handle a string of arbitrary length. */
+opt_fill:
+ '=' parse_exp
+ { $$ = $2; }
+ | /* empty */
+ { $$ = NULL; }
+ ;
+
+/* Commands which may appear within the description of an output
+ section in a SECTIONS block. */
+section_cmds:
+ /* empty */
+ | section_cmds section_cmd
+ ;
+
+/* A command which may appear within the description of an output
+ section in a SECTIONS block. */
+section_cmd:
+ assignment end
+ | input_section_spec
+ | data_length '(' parse_exp ')'
+ { script_add_data(closure, $1, $3); }
+ | ASSERT_K '(' parse_exp ',' string ')'
+ { script_add_assertion(closure, $3, $5.value, $5.length); }
+ | FILL '(' parse_exp ')'
+ { script_add_fill(closure, $3); }
+ | CONSTRUCTORS
+ {
+ /* The GNU linker uses CONSTRUCTORS for the a.out object
+ file format. It does nothing when using ELF. Since
+ some ELF linker scripts use it although it does
+ nothing, we accept it and ignore it. */
+ }
+ | SORT_BY_NAME '(' CONSTRUCTORS ')'
+ | INCLUDE string
+ { script_include_directive(PARSING_SECTION_COMMANDS, closure,
+ $2.value, $2.length); }
+ | ';'
+ ;
+
+/* The length of data which may appear within the description of an
+ output section in a SECTIONS block. */
+data_length:
+ QUAD
+ { $$ = QUAD; }
+ | SQUAD
+ { $$ = SQUAD; }
+ | LONG
+ { $$ = LONG; }
+ | SHORT
+ { $$ = SHORT; }
+ | BYTE
+ { $$ = BYTE; }
+ ;
+
+/* An input section specification. This may appear within the
+ description of an output section in a SECTIONS block. */
+input_section_spec:
+ input_section_no_keep
+ { script_add_input_section(closure, &$1, 0); }
+ | KEEP '(' input_section_no_keep ')'
+ { script_add_input_section(closure, &$3, 1); }
+ ;
+
+/* An input section specification within a KEEP clause. */
+input_section_no_keep:
+ string
+ {
+ $$.file.name = $1;
+ $$.file.sort = SORT_WILDCARD_NONE;
+ $$.input_sections.sections = NULL;
+ $$.input_sections.exclude = NULL;
+ }
+ | wildcard_file '(' wildcard_sections ')'
+ {
+ $$.file = $1;
+ $$.input_sections = $3;
+ }
+ ;
+
+/* A wildcard file specification. */
+wildcard_file:
+ wildcard_name
+ {
+ $$.name = $1;
+ $$.sort = SORT_WILDCARD_NONE;
+ }
+ | SORT_BY_NAME '(' wildcard_name ')'
+ {
+ $$.name = $3;
+ $$.sort = SORT_WILDCARD_BY_NAME;
+ }
+ ;
+
+/* A list of wild card section specifications. */
+wildcard_sections:
+ wildcard_sections opt_comma wildcard_section
+ {
+ $$.sections = script_string_sort_list_add($1.sections, &$3);
+ $$.exclude = $1.exclude;
+ }
+ | wildcard_section
+ {
+ $$.sections = script_new_string_sort_list(&$1);
+ $$.exclude = NULL;
+ }
+ | wildcard_sections opt_comma EXCLUDE_FILE '(' exclude_names ')'
+ {
+ $$.sections = $1.sections;
+ $$.exclude = script_string_list_append($1.exclude, $5);
+ }
+ | EXCLUDE_FILE '(' exclude_names ')'
+ {
+ $$.sections = NULL;
+ $$.exclude = $3;
+ }
+ ;
+
+/* A single wild card specification. */
+wildcard_section:
+ wildcard_name
+ {
+ $$.name = $1;
+ $$.sort = SORT_WILDCARD_NONE;
+ }
+ | SORT_BY_NAME '(' wildcard_section ')'
+ {
+ $$.name = $3.name;
+ switch ($3.sort)
+ {
+ case SORT_WILDCARD_NONE:
+ $$.sort = SORT_WILDCARD_BY_NAME;
+ break;
+ case SORT_WILDCARD_BY_NAME:
+ case SORT_WILDCARD_BY_NAME_BY_ALIGNMENT:
+ break;
+ case SORT_WILDCARD_BY_ALIGNMENT:
+ case SORT_WILDCARD_BY_ALIGNMENT_BY_NAME:
+ $$.sort = SORT_WILDCARD_BY_NAME_BY_ALIGNMENT;
+ break;
+ default:
+ abort();
+ }
+ }
+ | SORT_BY_ALIGNMENT '(' wildcard_section ')'
+ {
+ $$.name = $3.name;
+ switch ($3.sort)
+ {
+ case SORT_WILDCARD_NONE:
+ $$.sort = SORT_WILDCARD_BY_ALIGNMENT;
+ break;
+ case SORT_WILDCARD_BY_ALIGNMENT:
+ case SORT_WILDCARD_BY_ALIGNMENT_BY_NAME:
+ break;
+ case SORT_WILDCARD_BY_NAME:
+ case SORT_WILDCARD_BY_NAME_BY_ALIGNMENT:
+ $$.sort = SORT_WILDCARD_BY_ALIGNMENT_BY_NAME;
+ break;
+ default:
+ abort();
+ }
+ }
+ | SORT_BY_INIT_PRIORITY '(' wildcard_name ')'
+ {
+ $$.name = $3;
+ $$.sort = SORT_WILDCARD_BY_INIT_PRIORITY;
+ }
+ ;
+
+/* A list of file names to exclude. */
+exclude_names:
+ exclude_names opt_comma wildcard_name
+ { $$ = script_string_list_push_back($1, $3.value, $3.length); }
+ | wildcard_name
+ { $$ = script_new_string_list($1.value, $1.length); }
+ ;
+
+/* A single wildcard name. We recognize '*' and '?' specially since
+ they are expression tokens. */
+wildcard_name:
+ string
+ { $$ = $1; }
+ | '*'
+ {
+ $$.value = "*";
+ $$.length = 1;
+ }
+ | '?'
+ {
+ $$.value = "?";
+ $$.length = 1;
+ }
+ ;
+
+/* A list of MEMORY definitions. */
+memory_defs:
+ memory_defs opt_comma memory_def
+ | /* empty */
+ ;
+
+/* A single MEMORY definition. */
+memory_def:
+ string memory_attr ':' memory_origin '=' parse_exp opt_comma memory_length '=' parse_exp
+ { script_add_memory(closure, $1.value, $1.length, $2, $6, $10); }
+ |
+ INCLUDE string
+ { script_include_directive(PARSING_MEMORY_DEF, closure,
+ $2.value, $2.length); }
+ |
+ ;
+
+/* The (optional) attributes of a MEMORY region. */
+memory_attr:
+ '(' string ')'
+ { $$ = script_parse_memory_attr(closure, $2.value, $2.length, 0); }
+ | /* Inverted attributes. */
+ '(' '!' string ')'
+ { $$ = script_parse_memory_attr(closure, $3.value, $3.length, 1); }
+ | /* empty */
+ { $$ = 0; }
+ ;
+
+memory_origin:
+ ORIGIN
+ |
+ ORG
+ |
+ 'o'
+ ;
+
+memory_length:
+ LENGTH
+ |
+ LEN
+ |
+ 'l'
+ ;
+
+/* A list of program header definitions. */
+phdrs_defs:
+ phdrs_defs phdr_def
+ | /* empty */
+ ;
+
+/* A program header definition. */
+phdr_def:
+ string phdr_type phdr_info ';'
+ { script_add_phdr(closure, $1.value, $1.length, $2, &$3); }
+ ;
+
+/* A program header type. The GNU linker accepts a general expression
+ here, but that would be a pain because we would have to dig into
+ the expression structure. It's unlikely that anybody uses anything
+ other than a string or a number here, so that is all we expect. */
+phdr_type:
+ string
+ { $$ = script_phdr_string_to_type(closure, $1.value, $1.length); }
+ | INTEGER
+ { $$ = $1; }
+ ;
+
+/* Additional information for a program header. */
+phdr_info:
+ /* empty */
+ { memset(&$$, 0, sizeof(struct Phdr_info)); }
+ | string phdr_info
+ {
+ $$ = $2;
+ if ($1.length == 7 && strncmp($1.value, "FILEHDR", 7) == 0)
+ $$.includes_filehdr = 1;
+ else
+ yyerror(closure, "PHDRS syntax error");
+ }
+ | PHDRS phdr_info
+ {
+ $$ = $2;
+ $$.includes_phdrs = 1;
+ }
+ | string '(' INTEGER ')' phdr_info
+ {
+ $$ = $5;
+ if ($1.length == 5 && strncmp($1.value, "FLAGS", 5) == 0)
+ {
+ $$.is_flags_valid = 1;
+ $$.flags = $3;
+ }
+ else
+ yyerror(closure, "PHDRS syntax error");
+ }
+ | AT '(' parse_exp ')' phdr_info
+ {
+ $$ = $5;
+ $$.load_address = $3;
+ }
;
/* Set a symbol to a value. */
Expression_ptr e = script_exp_binary_bitwise_or(s, $3);
script_set_symbol(closure, $1.value, $1.length, e, 0, 0);
}
+ | HIDDEN '(' string '=' parse_exp ')'
+ { script_set_symbol(closure, $3.value, $3.length, $5, 0, 1); }
| PROVIDE '(' string '=' parse_exp ')'
{ script_set_symbol(closure, $3.value, $3.length, $5, 1, 0); }
| PROVIDE_HIDDEN '(' string '=' parse_exp ')'
{ $$ = script_exp_trinary_cond($1, $3, $5); }
| INTEGER
{ $$ = script_exp_integer($1); }
- | STRING
- { $$ = script_exp_string($1.value, $1.length); }
- | QUOTED_STRING
- { $$ = script_exp_string($1.value, $1.length); }
+ | string
+ { $$ = script_symbol(closure, $1.value, $1.length); }
| MAX_K '(' exp ',' exp ')'
{ $$ = script_exp_function_max($3, $5); }
| MIN_K '(' exp ',' exp ')'
| LOADADDR '(' string ')'
{ $$ = script_exp_function_loadaddr($3.value, $3.length); }
| ORIGIN '(' string ')'
- { $$ = script_exp_function_origin($3.value, $3.length); }
+ { $$ = script_exp_function_origin(closure, $3.value, $3.length); }
| LENGTH '(' string ')'
- { $$ = script_exp_function_length($3.value, $3.length); }
+ { $$ = script_exp_function_length(closure, $3.value, $3.length); }
| CONSTANT '(' string ')'
{ $$ = script_exp_function_constant($3.value, $3.length); }
| ABSOLUTE '(' exp ')'
| BLOCK '(' exp ')'
{ $$ = script_exp_function_align(script_exp_string(".", 1), $3); }
| DATA_SEGMENT_ALIGN '(' exp ',' exp ')'
- { $$ = script_exp_function_data_segment_align($3, $5); }
+ {
+ script_data_segment_align(closure);
+ $$ = script_exp_function_data_segment_align($3, $5);
+ }
| DATA_SEGMENT_RELRO_END '(' exp ',' exp ')'
- { $$ = script_exp_function_data_segment_relro_end($3, $5); }
+ {
+ script_data_segment_relro_end(closure);
+ $$ = script_exp_function_data_segment_relro_end($3, $5);
+ }
| DATA_SEGMENT_END '(' exp ')'
{ $$ = script_exp_function_data_segment_end($3); }
| SEGMENT_START '(' string ',' exp ')'
{
$$ = script_exp_function_segment_start($3.value, $3.length, $5);
+ /* We need to take note of any SEGMENT_START expressions
+ because they change the behaviour of -Ttext, -Tdata and
+ -Tbss options. */
+ script_saw_segment_start_expression(closure);
}
| ASSERT_K '(' exp ',' string ')'
{ $$ = script_exp_function_assert($3, $5.value, $5.length); }
{ script_set_symbol(closure, $1.value, $1.length, $3, 0, 0); }
;
+/* Handle the --dynamic-list option. A dynamic list has the format
+ { sym1; sym2; extern "C++" { namespace::sym3 }; };
+ We store the symbol we see in the "local" list; that is where
+ Command_line::in_dynamic_list() will look to do its check.
+ TODO(csilvers): More than one of these brace-lists can appear, and
+ should just be merged and treated as a single list. */
+dynamic_list_expr: dynamic_list_nodes ;
+
+dynamic_list_nodes:
+ dynamic_list_node
+ | dynamic_list_nodes dynamic_list_node
+ ;
+
+dynamic_list_node:
+ '{' vers_defns ';' '}' ';'
+ { script_new_vers_node (closure, NULL, $2); }
+ ;
+
/* A version script. */
version_script:
vers_nodes