Getting ready to add code generation support through LLVM bindings.

Rakefile

@@ -10,6 +10,8 @@
 require 'rake/testtask'
 require 'bundler'
 
+require File.expand_path("../lib/rltk/version", __FILE__)
+
 begin
 	require 'rdoc/task'
 
@@ -45,3 +47,96 @@ Rake::TestTask.new do |t|
 end
 
 Bundler::GemHelper.install_tasks
+
+task :check_bindings, :verbose do |t, args|
+	(args = args.to_hash)[:verbose] = (args[:verbose] == 'true')
+
+	require 'lib/rltk/cg/bindings'
+
+	# Check for objdump.
+	if not (bin = `which objdump`.chomp)[0,1] == '/'
+		warn 'objdump binary not found.'
+		return
+	end
+
+	# Locate the LLVM shared library.
+	lib_path = nil
+
+	paths  = ENV['LD_LIBRARY_PATH'].split(/:/).uniq
+	paths << '/usr/lib/'
+	paths << '/usr/lib64/'
+
+	paths.each do |path|
+		test_path = File.join(path, "libLLVM-#{RLTK::LLVM_TARGET_VERSION}.so")
+		if File.exists?(test_path)
+			lib_path = test_path
+		end
+	end
+
+	if not lib_path
+		puts "libLLVM-#{RLTK::LLVM_TARGET_VERSION}.so not found."
+		return
+	end
+
+	# Grab libLLVM symbols.
+	lines = `#{bin} -t #{lib_path}`
+
+	lsyms = lines.map do |l|
+		md = l.match(/\s(LLVM\w+)/)
+		if md then md[1] else nil end
+	end.compact.uniq
+
+	# Grab libLLVM-EB symbols.
+	lib_path = "ext/libLLVM-ECB-#{RLTK::LLVM_TARGET_VERSION}.so"
+
+	if not File.exists?(lib_path)
+		puts 'Extending Bindings shared library not present.'
+		return
+	end
+
+	lines = `#{bin} -t #{lib_path}`
+
+	lsyms |= lsyms = lines.map do |l|
+		md = l.match(/\s(LLVM\w+)/)
+		if md then md[1] else nil end
+	end.compact.uniq
+
+	# Defined symbols.
+	dsyms = Symbol.all_symbols.map do |sym|
+		sym = sym.to_s
+		if sym.match(/^LLVM[a-zA-Z]+/) then sym else nil end
+	end.compact
+
+	# Sort the symbols.
+	bound	= Array.new
+	unbound	= Array.new
+	unbinds	= Array.new
+
+	lsyms.each do |sym|
+		if dsyms.include?(sym) then bound else unbound end << sym
+	end
+
+	dsyms.each do |sym|
+		if not lsyms.include?(sym) then unbinds << sym end
+	end
+
+	puts "Bound Functions: #{bound.length}"
+	puts "Unbound Functions: #{unbound.length}"
+	puts "Bad Bindings: #{unbinds.length}"
+	puts "Completeness: #{((bound.length / lsyms.length.to_f) * 100).to_i}%"
+
+	if args[:verbose]
+		puts() if unbound.length > 0 and unbinds.length > 0
+
+		if unbound.length > 0
+			puts 'Unbound Functions:'
+			unbound.sort.each {|sym| puts sym}
+			puts
+		end
+
+		if unbinds.length > 0
+			puts 'Bad Bindings:'
+			unbinds.sort.each {|sym| puts sym}
+		end
+	end
+end

lib/rltk/cg.rb

@@ -0,0 +1,9 @@
+# Author:		Chris Wailes <chris.wailes@gmail.com>
+# Project: 	Ruby Language Toolkit
+# Date:		2012/03/08
+# Description:	This file adds some autoload features for the RLTK code
+#			generation.
+
+module RLTK::CG
+	autoload :Bindings, 'rltk/cg/bindings'
+end

lib/rltk/cg/bindings.rb

@@ -0,0 +1,10 @@
+# Author:		Chris Wailes <chris.wailes@gmail.com>
+# Project: 	Ruby Language Toolkit
+# Date:		2012/03/08
+# Description:	This file holds bindings to LLVM.
+
+require 'ffi'
+
+module RLTK::CG::Bindings
+
+end

lib/rltk/version.rb

@@ -4,5 +4,6 @@
 # Description:	This file specifies the version number of RLTK.
 
 module RLTK
-	VERSION = "1.2.0"
+	LLVM_TARGET_VERSION	= '3.0'
+	VERSION			= '1.2.0'
 end