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module UJIT
def self.disasm(iseq)
iseq = RubyVM::InstructionSequence.of(iseq)
blocks = UJIT.blocks_for(iseq)
return if blocks.empty?
str = ""
cs = UJIT::Disasm.new
str << iseq.disasm
str << "\n"
# Sort the blocks by increasing addresses
blocks.sort_by(&:address).each_with_index do |block, i|
str << "== BLOCK #{i+1}/#{blocks.length}: #{block.code.length} BYTES, ISEQ RANGE [#{block.iseq_start_index},#{block.iseq_end_index}[ ".ljust(80, "=")
str << "\n"
cs.disasm(block.code, 0).each do |i|
str << sprintf(
" %<address>08X: %<instruction>s\t%<details>s\n",
address: block.address + i.address,
instruction: i.mnemonic,
details: i.op_str
)
end
end
block_sizes = blocks.map { |block| block.code.length }
total_bytes = block_sizes.reduce(0, :+)
str << "\n"
str << "Total code size: #{total_bytes} bytes"
str << "\n"
str
end if defined?(Disasm)
end
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