/* yyscript.y -- linker script grammar for gold. */
-/* Copyright (C) 2006-2015 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.
%token FORCE_COMMON_ALLOCATION
%token GLOBAL /* global */
%token GROUP
+%token HIDDEN
%token HLL
%token INCLUDE
%token INHIBIT_COMMON_ALLOCATION
%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_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. */
| 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. */
{ 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
| ';'
;
/* A command which may appear within a SECTIONS block. */
section_block_cmd:
- 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_SECTIONS_BLOCK, closure,
+ $2.value, $2.length); }
| string section_header
{ script_start_output_section(closure, $1.value, $1.length, &$2); }
'{' section_cmds '}' section_trailer
}
| SORT_BY_NAME '(' CONSTRUCTORS ')'
| INCLUDE string
- { script_include_directive(closure, $2.value, $2.length); }
+ { script_include_directive(PARSING_SECTION_COMMANDS, closure,
+ $2.value, $2.length); }
| ';'
;
abort();
}
}
+ | SORT_BY_INIT_PRIORITY '(' wildcard_name ')'
+ {
+ $$.name = $3;
+ $$.sort = SORT_WILDCARD_BY_INIT_PRIORITY;
+ }
;
/* A list of file names to exclude. */
}
;
-/* A command which may appear at the top level of a linker script, or
- within a SECTIONS block. */
-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(closure, $2.value, $2.length); }
- ;
-
/* A list of MEMORY definitions. */
memory_defs:
memory_defs opt_comma 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); }
|
- /* LD supports an INCLUDE directive here, currently GOLD does not. */
INCLUDE string
- { script_include_directive(closure, $2.value, $2.length); }
+ { script_include_directive(PARSING_MEMORY_DEF, closure,
+ $2.value, $2.length); }
|
;
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 ')'