Contents

# Build file for the native C extension.
#
# = Environment variables
# CFLAGS::    Arguments to the compiler.
# LDFLAGS::   Arguments to the linker.
# SIMULATOR:: ID of the simulator.
#--
# Copyright 2006 Suraj N. Kurapati
# See the file named LICENSE for details.

require 'rake/clean'
require 'rbconfig'

$:.unshift File.join(File.dirname(__FILE__), '..', 'lib')
require 'ruby-vpi/rake'


desc "Builds the extension."
task :default => 'Makefile' do |t|
  sh 'make', '-f', t.prerequisites[0]
end

file 'Makefile' => [:swig, 'extconf.rb'] do |t|
  cflags = "#{ENV['CFLAGS']} -g -Werror"

  # detect ruby version on behalf of C extension
  v = RUBY_VERSION.split('.')
  until v.empty?
    cflags << " -DHAVE_RUBY_#{v.join '_'}"
    v.pop
  end

  ruby t.prerequisites[1], "--with-cflags=#{cflags}", "--with-ldflags=#{ENV['LDFLAGS']}"
end

CLEAN.include 'Makefile', 'mkmf.log', '*.o', "*.#{Config::CONFIG['DLEXT']}"


desc 'Generate Ruby wrapper for VPI.'
task :swig => 'swig.cin'

file 'swig.cin' => 'swig_vpi.i' do |t|
  sh %w[swig -Werror -w801 -ruby -o], t.name, t.prerequisites[0]
end

file 'swig_vpi.i' => 'swig_vpi.h'

# create a custom version of the standard vpi_user.h file to
# accomodate quirks in C compilers and Verilog simulators
file 'swig_vpi.h' => 'vpi_user.h' do |t|
  src, dst = t.prerequisites[0], t.name

  File.open(dst, 'w') do |f|
    input = File.read(src)

    # this is only relevant for the C language VPI interface
    input.gsub! %r{^.*vlog_startup_routines.*$}, ''

    # avoid compilation errors due to va_list, which is used
    # in the SWIG-generated wrapper for VPI vprintf functions
    input.gsub! %r{\bva_list\b}, 'void*'

    # VCS does not load the Ruby-VPI shared object file if it contains
    # references to the vpi_put_data and vpi_get_data symbols
    if ENV['SIMULATOR'] == 'vcs'
      input.gsub! %r{^.*vpi_(get|put)_data[^;]+;}, ''
    end

    f << input
  end
end

CLEAN.include 'swig.cin', 'swig_vpi.h'

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
ruby-vpi-21.0.0	ext/Rakefile