2010-04-09 Doug Kwan <dougkwan@google.com>

[external/binutils.git] / gold / script-sections.h

diff --git a/gold/script-sections.h b/gold/script-sections.h
index 390c350..725d1a2 100644 (file)
--- a/gold/script-sections.h
+++ b/gold/script-sections.h
@@ -52,6 +52,20 @@ class Script_sections
   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
+  {
+    // No section type specified.
+    ST_NONE,
+    // Section is NOLOAD.  We allocate space in the output but section
+    // is not loaded in runtime.
+    ST_NOLOAD,
+    // No space is allocated to section.
+    ST_NOALLOC
+  };
+
   Script_sections();
 
   // Start a SECTIONS clause.
@@ -147,9 +161,13 @@ class Script_sections
   // 3) If the input section is not mapped by the SECTIONS clause,
   //    this returns SECTION_NAME, and sets *OUTPUT_SECTION_SLOT to
   //    NULL.
+  // 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.
   const char*
   output_section_name(const char* file_name, const char* section_name,
-                     Output_section*** output_section_slot);
+                     Output_section*** output_section_slot,
+                     Section_type* pscript_section_type);
 
   // Place a marker for an orphan output section into the SECTIONS
   // clause.
@@ -187,6 +205,21 @@ 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;
@@ -249,6 +282,8 @@ class Script_sections
   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.