66 lines
1.8 KiB
Ruby
66 lines
1.8 KiB
Ruby
#!/usr/bin/env ruby
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# Sample code for SPARC of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
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# Ruby sample ported by Sascha Schirra <sashs82@gmail.com>
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require 'unicorn_engine'
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require 'unicorn_engine/sparc_const'
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include UnicornEngine
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# code to be emulated
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SPARC_CODE = "\x86\x00\x40\x02" # add %g1, %g2, %g3;
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# memory address where emulation starts
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ADDRESS = 0x10000
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# callback for tracing basic blocks
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$hook_block = Proc.new do |uc, address, size, user_data|
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puts(">>> Tracing basic block at 0x%x, block size = 0x%x" % [address, size])
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end
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# callback for tracing instructions
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$hook_code = Proc.new do |uc, address, size, user_data|
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puts(">>> Tracing instruction at 0x%x, instruction size = %u" % [address, size])
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end
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# Test SPARC
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def test_sparc()
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puts("Emulate SPARC code")
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begin
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# Initialize emulator in SPARC EB mode
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mu = Uc.new UC_ARCH_SPARC, UC_MODE_SPARC32|UC_MODE_BIG_ENDIAN
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# map 2MB memory for this emulation
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mu.mem_map(ADDRESS, 2 * 1024 * 1024)
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# write machine code to be emulated to memory
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mu.mem_write(ADDRESS, SPARC_CODE)
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# initialize machine registers
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mu.reg_write(UC_SPARC_REG_G1, 0x1230)
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mu.reg_write(UC_SPARC_REG_G2, 0x6789)
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mu.reg_write(UC_SPARC_REG_G3, 0x5555)
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# tracing all basic blocks with customized callback
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mu.hook_add(UC_HOOK_BLOCK, $hook_block)
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# tracing all instructions with customized callback
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mu.hook_add(UC_HOOK_CODE, $hook_code)
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# emulate machine code in infinite time
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mu.emu_start(ADDRESS, ADDRESS + SPARC_CODE.bytesize)
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# now puts out some registers
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puts(">>> Emulation done. Below is the CPU context")
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g3 = mu.reg_read(UC_SPARC_REG_G3)
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puts(">>> G3 = 0x%x" %g3)
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rescue UcError => e
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puts("ERROR: %s" % e)
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end
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end
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test_sparc()
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