Add support to demand load relocation records.

Support has been added to load relocation record on demand. The
relocation records are not read when the object file is first
opened and read. They are read only when being written to the
output file. This save loading lots of records into memory
from libraries to be thrown away.

The RAP format now supports writing out relocation records.

1 files changed, 12 insertions, 5 deletions

diff --git a/rld-symbols.h b/rld-symbols.h
index dcb0d3e..e602e36 100644
--- a/rld-symbols.h
+++ b/rld-symbols.h
@@ -58,14 +58,15 @@ namespace rld
       /**
        * Construct an exported symbol with a object file.
        */
-      symbol (const std::string&  name,
+      symbol (int                 index,
+              const std::string&  name,
               files::object&      object,
               const elf::elf_sym& esym);
 
       /**
-       * Construct an unresolved symbol with no object file.
+       * Construct a symbol with no object file and an ELF index.
        */
-      symbol (const std::string& name, const elf::elf_sym& esym);
+      symbol (int index, const std::string& name, const elf::elf_sym& esym);
 
       /**
        * Construct a linker symbol that is internally created.
@@ -80,6 +81,11 @@ namespace rld
               elf::elf_addr value = 0);
 
       /**
+       * The symbol's index in the symtab section of the ELF file.
+       */
+      int index () const;
+
+      /**
        * The symbol's name.
        */
       const std::string& name () const;
@@ -105,9 +111,9 @@ namespace rld
       int binding () const;
 
       /**
-       * The synbol's section index.
+       * The symbol's section index.
        */
-      int index () const;
+      int section_index () const;
 
       /**
        * The value of the symbol.
@@ -159,6 +165,7 @@ namespace rld
 
     private:
 
+      int            index_;      //< The symbol's index in the ELF file.
       std::string    name_;       //< The name of the symbol.
       std::string    demangled_;  //< If a C++ symbol the demangled name.
       files::object* object_;     //< The object file containing the symbol.