X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gold%2Fscript-sections.h;h=daf9f64e1a5744374352125f8e632a028e98a895;hb=cfd4e875aeacf565f945c2818dbfff47807b6199;hp=f18b06c7d13a1f2625c56f6ac59dc3ff330c38e4;hpb=f6973bdcb778ca7a54817a696cb0c6457f4ae96f;p=platform%2Fupstream%2Fbinutils.git

diff --git a/gold/script-sections.h b/gold/script-sections.h
index f18b06c..daf9f64 100644
--- a/gold/script-sections.h
+++ b/gold/script-sections.h
@@ -1,6 +1,6 @@
 // script-sections.h -- linker script SECTIONS for gold   -*- C++ -*-
 
-// Copyright 2008, 2009 Free Software Foundation, Inc.
+// Copyright (C) 2008-2014 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -37,6 +37,7 @@ struct Parser_output_section_trailer;
 struct Input_section_spec;
 class Expression;
 class Sections_element;
+class Memory_region;
 class Phdrs_element;
 class Output_data;
 class Output_section_definition;
@@ -46,13 +47,11 @@ class Orphan_section_placement;
 
 class Script_sections
 {
- private:
+ public:
   // This is a list, not a vector, because we insert orphan sections
   // in the middle.
   typedef std::list<Sections_element*> Sections_elements;
 
- public:
-
   // Logical script section types.  We map section types returned by the
   // parser into these since some section types have the same semantics.
   enum Section_type
@@ -164,10 +163,12 @@ class Script_sections
   // PSCRIPT_SECTION_TYPE points to a location for returning the section
   // type specified in script.  This can be SCRIPT_SECTION_TYPE_NONE if
   // no type is specified.
+  // *KEEP indicates whether the section should survive garbage collection.
   const char*
   output_section_name(const char* file_name, const char* section_name,
 		      Output_section*** output_section_slot,
-		      Section_type* pscript_section_type);
+		      Section_type* pscript_section_type,
+		      bool* keep);
 
   // Place a marker for an orphan output section into the SECTIONS
   // clause.
@@ -220,6 +221,37 @@ class Script_sections
   set_saw_segment_start_expression(bool value)
   { this->saw_segment_start_expression_ = value; }
 
+  // Add a memory region.
+  void
+  add_memory_region(const char*, size_t, unsigned int,
+		    Expression*, Expression*);
+
+  // Find a memory region's origin.
+  Expression*
+  find_memory_region_origin(const char*, size_t);
+
+  // Find a memory region's length.
+  Expression*
+  find_memory_region_length(const char*, size_t);
+
+  // Find a memory region by name.
+  Memory_region*
+  find_memory_region(const char*, size_t);
+
+  // Find a memory region that should be used by a given output section.
+  Memory_region*
+  find_memory_region(Output_section_definition*, bool,
+		     Output_section_definition**);
+
+  // Returns true if the provide block of memory is contained
+  // within a memory region.
+  bool
+  block_in_region(Symbol_table*, Layout*, uint64_t, uint64_t) const;
+    
+  // Set the memory region of the section.
+  void
+  set_memory_region(Memory_region*, bool);
+
   // Print the contents to the FILE.  This is for debugging.
   void
   print(FILE*) const;
@@ -228,6 +260,7 @@ class Script_sections
   typedef Sections_elements::iterator Elements_iterator;
 
  private:
+  typedef std::vector<Memory_region*> Memory_regions;
   typedef std::vector<Phdrs_element*> Phdrs_elements;
 
   // Create segments.
@@ -271,6 +304,8 @@ class Script_sections
   Sections_elements* sections_elements_;
   // The current output section, if there is one.
   Output_section_definition* output_section_;
+  // The list of memory regions in the MEMORY clause.
+  Memory_regions* memory_regions_;
   // The list of program headers in the PHDRS clause.
   Phdrs_elements* phdrs_elements_;
   // Where to put orphan sections.
@@ -286,6 +321,17 @@ class Script_sections
   bool saw_segment_start_expression_;
 };
 
+// Attributes for memory regions.
+enum
+{
+  MEM_EXECUTABLE   = (1 << 0),
+  MEM_WRITEABLE    = (1 << 1),
+  MEM_READABLE     = (1 << 2),
+  MEM_ALLOCATABLE  = (1 << 3),
+  MEM_INITIALIZED  = (1 << 4),
+  MEM_ATTR_MASK    = (1 << 5) - 1
+};
+
 } // End namespace gold.
 
 #endif // !defined(GOLD_SCRIPT_SECTIONS_H