PR 10843

[pf3gnuchains/pf3gnuchains3x.git] / gold / script-sections.h

diff --git a/gold/script-sections.h b/gold/script-sections.h
index 73bf33f..c0d1d08 100644 (file)
--- 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 Free Software Foundation, Inc.
+// Copyright 2008, 2009 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -26,6 +26,7 @@
 #define GOLD_SCRIPT_SECTIONS_H
 
 #include <cstdio>
+#include <list>
 #include <vector>
 
 namespace gold
@@ -41,9 +42,15 @@ class Output_data;
 class Output_section_definition;
 class Output_section;
 class Output_segment;
+class Orphan_section_placement;
 
 class Script_sections
 {
+ private:
+  // This is a list, not a vector, because we insert orphan sections
+  // in the middle.
+  typedef std::list<Sections_element*> Sections_elements;
+
  public:
   Script_sections();
 
@@ -106,6 +113,14 @@ class Script_sections
   void
   add_input_section(const Input_section_spec* spec, bool keep);
 
+  // Saw DATA_SEGMENT_ALIGN.
+  void
+  data_segment_align();
+
+  // Saw DATA_SEGMENT_RELRO_END.
+  void
+  data_segment_relro_end();
+
   // Create any required sections.
   void
   create_sections(Layout*);
@@ -172,13 +187,29 @@ class Script_sections
                           uint64_t* load_address, uint64_t* addralign,
                           uint64_t* size) const;
 
+  // Release all Output_segments.  This is used in relaxation.
+  void
+  release_segments();
+
+  // Whether we ever saw a SEGMENT_START expression, the presence of which
+  // changes the behaviour of -Ttext, -Tdata and -Tbss options.
+  bool
+  saw_segment_start_expression() const
+  { return this->saw_segment_start_expression_; }
+
+  // Set the flag which indicates whether we saw a SEGMENT_START expression.
+  void
+  set_saw_segment_start_expression(bool value)
+  { this->saw_segment_start_expression_ = value; }
+
   // Print the contents to the FILE.  This is for debugging.
   void
   print(FILE*) const;
 
- private:
-  typedef std::vector<Sections_element*> Sections_elements;
+  // Used for orphan sections.
+  typedef Sections_elements::iterator Elements_iterator;
 
+ private:
   typedef std::vector<Phdrs_element*> Phdrs_elements;
 
   // Create segments.
@@ -224,6 +255,17 @@ class Script_sections
   Output_section_definition* output_section_;
   // The list of program headers in the PHDRS clause.
   Phdrs_elements* phdrs_elements_;
+  // Where to put orphan sections.
+  Orphan_section_placement* orphan_section_placement_;
+  // A pointer to the last Sections_element when we see
+  // DATA_SEGMENT_ALIGN.
+  Sections_elements::iterator data_segment_align_start_;
+  // Whether we have seen DATA_SEGMENT_ALIGN.
+  bool saw_data_segment_align_;
+  // Whether we have seen DATA_SEGMENT_RELRO_END.
+  bool saw_relro_end_;
+  // Whether we have seen SEGMENT_START.
+  bool saw_segment_start_expression_;
 };
 
 } // End namespace gold.