Initial commit

1 files changed, 46 insertions, 0 deletions

diff --git a/run.rb b/run.rb
new file mode 100755
index 0000000..ac8fc3d
--- /dev/null
+++ b/run.rb
@@ -0,0 +1,46 @@
+#!/usr/bin/env ruby
+
+require 'open3'
+require 'fileutils'
+require 'pathname'
+
+TMP = Pathname.new 'build'
+CROSS_GCC = '../riscv32-ilp32d--glibc/bin/riscv32-linux-gcc'
+SYSROOT = '../riscv32-ilp32d--glibc/riscv32-buildroot-linux-gnu/sysroot'
+
+COMMON_BOOT_OBJECT = TMP + 'common-boot.o'
+
+FileUtils.rm_rf TMP
+FileUtils.mkdir_p TMP
+
+FileUtils.cp 'boot/asm-boot.s', TMP
+
+def stage(source_elna, stage_name, output)
+  boot_exe = (TMP + stage_name).to_path
+  stage_path = TMP + "#{stage_name}.s"
+  arguments = [CROSS_GCC, '-nostdlib', '-o', boot_exe, stage_path.to_path, COMMON_BOOT_OBJECT.to_path]
+
+  puts(arguments * ' ')
+  system *arguments, exception: true
+
+  arguments = ['qemu-riscv32', '-L', SYSROOT, boot_exe]
+
+  puts(arguments * ' ')
+  puts
+  Open3.popen2(*arguments) do |qemu_in, qemu_out|
+    qemu_in.write source_elna
+    qemu_in.close
+
+    IO.copy_stream qemu_out, output
+    qemu_out.close
+  end
+end
+
+system CROSS_GCC, '-nostdlib', '-c', '-o', COMMON_BOOT_OBJECT.to_path, 'boot/common-boot.s', exception: true
+source_elna = File.read 'boot/goto-boot.elna'
+
+next_stage = TMP + 'goto-boot.s'
+File.open next_stage, 'w' do |output|
+  stage source_elna, 'asm-boot', output
+end
+stage(source_elna, 'goto-boot', $stdout)