2012-07-16 Sriraman Tallam <tmsriram@google.com>

[deliverable/binutils-gdb.git] / gold / layout.h

diff --git a/gold/layout.h b/gold/layout.h
index d76fc96bee154f588ce9b325859a1aafbd72bf6f..4643e325d5015358a9f6b1a004c5b3fda3984899 100644 (file)
--- a/gold/layout.h
+++ b/gold/layout.h
@@ -1,6 +1,7 @@
 // layout.h -- lay out output file sections for gold  -*- C++ -*-
 
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012
+// Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -58,6 +59,7 @@ class Output_symtab_xindex;
 class Output_reduced_debug_abbrev_section;
 class Output_reduced_debug_info_section;
 class Eh_frame;
+class Gdb_index;
 class Target;
 struct Timespec;
 
@@ -170,7 +172,7 @@ class Layout_task_runner : public Task_function_runner
   Layout_task_runner(const General_options& options,
                     const Input_objects* input_objects,
                     Symbol_table* symtab,
-                     Target* target,
+                    Target* target,
                     Layout* layout,
                     Mapfile* mapfile)
     : options_(options), input_objects_(input_objects), symtab_(symtab),
@@ -525,7 +527,7 @@ class Layout
   std::map<Section_id, unsigned int>*
   get_section_order_map()
   { return &this->section_order_map_; }
- 
+
   bool
   is_section_ordering_specified()
   { return this->section_ordering_specified_; }
@@ -601,6 +603,18 @@ class Layout
                       size_t cie_length, const unsigned char* fde_data,
                       size_t fde_length);
 
+  // Scan a .debug_info or .debug_types section, and add summary
+  // information to the .gdb_index section.
+  template<int size, bool big_endian>
+  void
+  add_to_gdb_index(bool is_type_unit,
+                  Sized_relobj<size, big_endian>* object,
+                  const unsigned char* symbols,
+                  off_t symbols_size,
+                  unsigned int shndx,
+                  unsigned int reloc_shndx,
+                  unsigned int reloc_type);
+
   // Handle a GNU stack note.  This is called once per input object
   // file.  SEEN_GNU_STACK is true if the object file has a
   // .note.GNU-stack section.  GNU_STACK_FLAGS is the section flags
@@ -696,11 +710,11 @@ class Layout
   {
     // Debugging sections can only be recognized by name.
     return (strncmp(name, ".debug", sizeof(".debug") - 1) == 0
-            || strncmp(name, ".zdebug", sizeof(".zdebug") - 1) == 0
-            || strncmp(name, ".gnu.linkonce.wi.",
-                       sizeof(".gnu.linkonce.wi.") - 1) == 0
-            || strncmp(name, ".line", sizeof(".line") - 1) == 0
-            || strncmp(name, ".stab", sizeof(".stab") - 1) == 0);
+           || strncmp(name, ".zdebug", sizeof(".zdebug") - 1) == 0
+           || strncmp(name, ".gnu.linkonce.wi.",
+                      sizeof(".gnu.linkonce.wi.") - 1) == 0
+           || strncmp(name, ".line", sizeof(".line") - 1) == 0
+           || strncmp(name, ".stab", sizeof(".stab") - 1) == 0);
   }
 
   // Return true if RELOBJ is an input file whose base name matches
@@ -723,7 +737,7 @@ class Layout
   // *KEPT_SECTION is set to the internal copy and the function return
   // false.
   bool
-  find_or_add_kept_section(const std::string& name, Relobj* object, 
+  find_or_add_kept_section(const std::string& name, Relobj* object,
                           unsigned int shndx, bool is_comdat,
                           bool is_group_name, Kept_section** kept_section);
 
@@ -890,7 +904,7 @@ class Layout
 
   // Attach sections to segments.
   void
-  attach_sections_to_segments();
+  attach_sections_to_segments(const Target*);
 
   // For relaxation clean up, we need to know output section data created
   // from a linker script.
@@ -969,7 +983,7 @@ class Layout
   // Find the first read-only PT_LOAD segment, creating one if
   // necessary.
   Output_segment*
-  find_first_load_seg();
+  find_first_load_seg(const Target*);
 
   // Count the local symbols in the regular symbol table and the dynamic
   // symbol table, and build the respective string pools.
@@ -1066,7 +1080,7 @@ class Layout
 
   // Attach a section to a segment.
   void
-  attach_section_to_segment(Output_section*);
+  attach_section_to_segment(const Target*, Output_section*);
 
   // Get section order.
   Output_section_order
@@ -1074,7 +1088,7 @@ class Layout
 
   // Attach an allocated section to a segment.
   void
-  attach_allocated_section_to_segment(Output_section*);
+  attach_allocated_section_to_segment(const Target*, Output_section*);
 
   // Make the .eh_frame section.
   Output_section*
@@ -1121,7 +1135,7 @@ class Layout
   bool
   segment_precedes(const Output_segment* seg1, const Output_segment* seg2);
 
-  // Use to save and restore segments during relaxation. 
+  // Use to save and restore segments during relaxation.
   typedef Unordered_map<const Output_segment*, const Output_segment*>
     Segment_states;
 
@@ -1192,12 +1206,12 @@ class Layout
     Relaxation_debug_check()
       : section_infos_()
     { }
- 
+
     // Check that sections and special data are in reset states.
     void
     check_output_data_for_reset_values(const Layout::Section_list&,
                                       const Layout::Data_list&);
-  
+
     // Record information of a section list.
     void
     read_sections(const Layout::Section_list&);
@@ -1205,7 +1219,7 @@ class Layout
     // Verify a section list with recorded information.
     void
     verify_sections(const Layout::Section_list&);
- 
+
    private:
     // Information we care about a section.
     struct Section_info
@@ -1281,6 +1295,8 @@ class Layout
   bool added_eh_frame_data_;
   // The exception frame header output section if there is one.
   Output_section* eh_frame_hdr_section_;
+  // The data for the .gdb_index section.
+  Gdb_index* gdb_index_data_;
   // The space for the build ID checksum if there is one.
   Output_section_data* build_id_note_;
   // The output section containing dwarf abbreviations