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simplify the arm64 object file generation

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Laurent Sansonetti
2014-10-11 19:34:22 +02:00
parent ead120975c
commit efd2b5ec08
1 changed files with 2 additions and 15 deletions
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17
lib/motion/project/builder.rb
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@@ -133,7 +133,6 @@ module Motion; module Project;
raise "Can't locate kernel file" unless File.exist?(kernel)
# Assembly.
asm = File.join(files_build_dir, "#{path}.#{arch}.s")
arm64 = false
compiler_exec_arch = case arch
when /^arm/
@@ -141,26 +140,14 @@ module Motion; module Project;
else
arch
end
asm = File.join(files_build_dir, "#{path}.#{arch}.#{arm64 ? 'bc' : 's'}")
sh "/usr/bin/env VM_PLATFORM=\"#{platform}\" VM_KERNEL_PATH=\"#{kernel}\" VM_OPT_LEVEL=\"#{config.opt_level}\" /usr/bin/arch -arch #{compiler_exec_arch} #{ruby} #{rubyc_bs_flags} --emit-llvm \"#{asm}\" #{init_func} \"#{path}\""
# Object
arch_obj = File.join(files_build_dir, "#{path}.#{arch}.o")
if arm64
# At the time of this writing Apple hasn't yet contributed the source code of the LLVM backend for the "arm64" architecture, so the RubyMotion compiler can't emit proper assembly yet. We work around this limitation by generating bitcode instead and giving it to the linker. Ugly but should be temporary (right?).
@dummy_object_file ||= begin
src_path = '/tmp/__dummy_object_file__.c'
obj_path = '/tmp/__dummy_object_file__.o'
File.open(src_path, 'w') { |io| io.puts "static int foo(void) { return 42; }" }
sh "#{cc} -c #{src_path} -o #{obj_path} -arch arm64 -miphoneos-version-min=7.0"
obj_path
end
ld_path = File.join(App.config.xcode_dir, 'Toolchains/XcodeDefault.xctoolchain/usr/bin/ld')
line = "#{ld_path} \"#{asm}\" \"#{@dummy_object_file}\" -arch arm64 -r -o \"#{arch_obj}\" 2>&1"
# Ignore `warning: ignore debug info...' lines from the linker which seem to be caused by an Xcode bug.
puts line if Rake.application.options.trace
ld_output = `#{line}`
ld_output = ld_output.lines.select { |x| !x.match(/^warning: ignoring debug info with an invalid version/) }.join
$stderr.puts ld_output unless ld_output.strip.empty?
sh "#{cc} -fexceptions -c -arch #{arch} -miphoneos-version-min=7.0 \"#{asm}\" -o \"#{arch_obj}\""
else
sh "#{cc} -fexceptions -c -arch #{arch} \"#{asm}\" -o \"#{arch_obj}\""
end