X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gold%2Fyyscript.y;h=d645dac2608c46de36a79765d29aab58a0892d8d;hb=8df017996f662ce6ab23aea4abeb8f7ac1f62651;hp=203deb7cbf86fc8f0b3b960856afd11a3b798202;hpb=88a4108bde4d02cccd632048b45458e84bc8b40b;p=deliverable%2Fbinutils-gdb.git

diff --git a/gold/yyscript.y b/gold/yyscript.y
index 203deb7cbf..d645dac260 100644
--- a/gold/yyscript.y
+++ b/gold/yyscript.y
@@ -1,6 +1,6 @@
 /* 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.
@@ -137,12 +137,14 @@
 %token FORCE_COMMON_ALLOCATION
 %token GLOBAL		/* global */
 %token GROUP
+%token HIDDEN
 %token HLL
 %token INCLUDE
 %token INHIBIT_COMMON_ALLOCATION
 %token INFO
 %token INPUT
 %token KEEP
+%token LEN
 %token LENGTH		/* LENGTH, l, len */
 %token LOADADDR
 %token LOCAL		/* local */
@@ -157,6 +159,7 @@
 %token NOLOAD
 %token ONLY_IF_RO
 %token ONLY_IF_RW
+%token ORG
 %token ORIGIN		/* ORIGIN, o, org */
 %token OUTPUT
 %token OUTPUT_ARCH
@@ -173,6 +176,7 @@
 %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
@@ -199,6 +203,9 @@
 %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.  */
 
@@ -215,7 +222,7 @@
 %type <wildcard_section> wildcard_file wildcard_section
 %type <string_list> exclude_names
 %type <string> wildcard_name
-%type <integer> phdr_type
+%type <integer> phdr_type memory_attr
 %type <phdr_info> phdr_info
 %type <versyms> vers_defns
 %type <versnode> vers_tag
@@ -230,6 +237,9 @@ top:
 	| 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.  */
@@ -250,6 +260,7 @@ file_cmd:
 	| 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 ')'
@@ -278,7 +289,14 @@ file_cmd:
             { 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
 	| ';'
 	;
@@ -336,7 +354,14 @@ sections_block:
 
 /* 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
@@ -471,14 +496,14 @@ section_trailer:
 /* A memory specification for an output section.  */
 opt_memspec:
 	  '>' string
-	    { yyerror(closure, "memory regions are not supported"); }
+	    { 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
-	    { yyerror(closure, "memory regions are not supported"); }
+	    { script_set_section_region(closure, $3.value, $3.length, 0); }
 	| /* empty */
 	;
 
@@ -525,6 +550,9 @@ section_cmd:
 		 nothing, we accept it and ignore it.  */
 	    }
 	| SORT_BY_NAME '(' CONSTRUCTORS ')'
+	| INCLUDE string
+	    { script_include_directive(PARSING_SECTION_COMMANDS, closure,
+				       $2.value, $2.length); }
 	| ';'
 	;
 
@@ -651,6 +679,11 @@ wildcard_section:
 		  abort();
 		}
 	    }
+	| SORT_BY_INIT_PRIORITY '(' wildcard_name ')'
+	    {
+	      $$.name = $3;
+	      $$.sort = SORT_WILDCARD_BY_INIT_PRIORITY;
+	    }
 	;
 
 /* A list of file names to exclude.  */
@@ -678,14 +711,48 @@ wildcard_name:
 	    }
 	;
 
-/* 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); }
+/* 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.  */
@@ -798,6 +865,8 @@ assignment:
 	      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 ')'
@@ -885,9 +954,9 @@ 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 ')'