adds hand coded fibo, works

lib/elf/object_writer.rb

@@ -6,9 +6,9 @@ require 'elf/string_table_section'
 module Elf
 
   class ObjectWriter
-    def initialize(target)
+    def initialize(program , target)
       @object = Elf::ObjectFile.new(target)
-
+      @program = program
       sym_strtab = Elf::StringTableSection.new(".strtab")
       @object.add_section sym_strtab
       @symbol_table = Elf::SymbolTableSection.new(".symtab", sym_strtab)
@@ -16,6 +16,17 @@ module Elf
 
       @text = Elf::TextSection.new(".text")
       @object.add_section @text
+      
+      program.link_at( 0 , program.context )
+    
+      binary = program.assemble(StringIO.new )
+      
+      blocks = program.functions.collect{ |f| [f.entry , f.exit , f.body] } 
+      blocks += [program.entry , program.exit , program.main]
+      blocks.flatten.each do |b|
+        add_symbol b.name.to_s , b.position
+      end
+      set_text binary.string      
     end
 
     def set_text(text)