From dbe717effbdf31236088837f4686fd5ad5e71893 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@google.com>
Date: Tue, 14 Nov 2006 19:21:05 +0000
Subject: More dynamic object support, initial scripting support.

---
 gold/dynobj.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 62 insertions(+), 5 deletions(-)

(limited to 'gold/dynobj.h')

diff --git a/gold/dynobj.h b/gold/dynobj.h
index 99e7883..04a2c63 100644
--- a/gold/dynobj.h
+++ b/gold/dynobj.h
@@ -3,6 +3,8 @@
 #ifndef GOLD_DYNOBJ_H
 #define GOLD_DYNOBJ_H
 
+#include <vector>
+
 #include "object.h"
 
 namespace gold
@@ -28,6 +30,10 @@ class Sized_dynobj : public Dynobj
   Sized_dynobj(const std::string& name, Input_file* input_file, off_t offset,
 	       const typename elfcpp::Ehdr<size, big_endian>&);
 
+  // Set up the object file based on the ELF header.
+  void
+  setup(const typename elfcpp::Ehdr<size, big_endian>&);
+
   // Read the symbols.
   void
   do_read_symbols(Read_symbols_data*);
@@ -41,14 +47,65 @@ class Sized_dynobj : public Dynobj
   void
   do_add_symbols(Symbol_table*, Read_symbols_data*);
 
+  // Get the name of a section.
+  std::string
+  do_section_name(unsigned int shndx)
+  { return this->elf_file_.section_name(shndx); }
+
   // Return a view of the contents of a section.  Set *PLEN to the
   // size.
-  const unsigned char*
-  do_section_contents(unsigned int shnum, off_t* plen) = 0;
+  Object::Location
+  do_section_contents(unsigned int shndx)
+  { return this->elf_file_.section_contents(shndx); }
 
-  // Get the name of a section.
-  std::string
-  do_section_name(unsigned int shnum);
+ private:
+  // For convenience.
+  typedef Sized_dynobj<size, big_endian> This;
+  static const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size;
+  static const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
+  static const int dyn_size = elfcpp::Elf_sizes<size>::dyn_size;
+  typedef elfcpp::Shdr<size, big_endian> Shdr;
+  typedef elfcpp::Dyn<size, big_endian> Dyn;
+
+  // Find the dynamic symbol table and the version sections, given the
+  // section headers.
+  void
+  find_dynsym_sections(const unsigned char* pshdrs,
+		       unsigned int* pdynshm_shndx,
+		       unsigned int* pversym_shndx,
+		       unsigned int* pverdef_shndx,
+		       unsigned int* pverneed_shndx,
+		       unsigned int* pdynamic_shndx);
+
+  // Read the dynamic symbol section SHNDX.
+  void
+  read_dynsym_section(const unsigned char* pshdrs, unsigned int shndx,
+		      elfcpp::SHT type, unsigned int link,
+		      File_view** view, off_t* view_size,
+		      unsigned int* view_info);
+
+  // Set the SONAME from the SHT_DYNAMIC section at DYNAMIC_SHNDX.
+  // The STRTAB parameters may have the relevant string table.
+  void
+  set_soname(const unsigned char* pshdrs, unsigned int dynamic_shndx,
+	     unsigned int strtab_shndx, const unsigned char* strtabu,
+	     off_t strtab_size);
+
+  // Mapping from version number to version name.
+  typedef std::vector<const char*> Version_map;
+
+  // Create the version map.
+  void
+  make_version_map(Read_symbols_data* sd, Version_map*) const;
+
+  // Add an entry to the version map.
+  void
+  set_version_map(Version_map*, unsigned int ndx, const char* name) const;
+
+  // General access to the ELF file.
+  elfcpp::Elf_file<size, big_endian, Object> elf_file_;
+  // The DT_SONAME name, if any.
+  std::string soname_;
 };
 
 } // End namespace gold.
-- 
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