artulab.com Git - openbsd/blob

   1 """
   2 Use lldb Python API to disassemble raw machine code bytes
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import re
   9 import lldb
  10 from lldbsuite.test.decorators import *
  11 from lldbsuite.test.lldbtest import *
  12 from lldbsuite.test import lldbutil
  13
  14
  15 class DisassembleRawDataTestCase(TestBase):
  16
  17     mydir = TestBase.compute_mydir(__file__)
  18
  19     @add_test_categories(['pyapi'])
  20     @no_debug_info_test
  21     @skipIfRemote
  22     def test_disassemble_raw_data(self):
  23         """Test disassembling raw bytes with the API."""
  24         # Create a target from the debugger.
  25         arch = self.getArchitecture()
  26         if re.match("mips*el", arch):
  27             target = self.dbg.CreateTargetWithFileAndTargetTriple("", "mipsel")
  28             raw_bytes = bytearray([0x21, 0xf0, 0xa0, 0x03])
  29         elif re.match("mips", arch):
  30             target = self.dbg.CreateTargetWithFileAndTargetTriple("", "mips")
  31             raw_bytes = bytearray([0x03, 0xa0, 0xf0, 0x21])
  32         elif re.match("powerpc64le", arch):
  33             target = self.dbg.CreateTargetWithFileAndTargetTriple("", "powerpc64le")
  34             raw_bytes = bytearray([0x00, 0x00, 0x80, 0x38])
  35         else:
  36             target = self.dbg.CreateTargetWithFileAndTargetTriple("", "x86_64")
  37             raw_bytes = bytearray([0x48, 0x89, 0xe5])
  38
  39         self.assertTrue(target, VALID_TARGET)
  40         insts = target.GetInstructions(lldb.SBAddress(0, target), raw_bytes)
  41
  42         inst = insts.GetInstructionAtIndex(0)
  43
  44         if self.TraceOn():
  45             print()
  46             print("Raw bytes:    ", [hex(x) for x in raw_bytes])
  47             print("Disassembled%s" % str(inst))
  48         if re.match("mips", arch):
  49             self.assertTrue(inst.GetMnemonic(target) == "move")
  50             self.assertTrue(inst.GetOperands(target) ==
  51                             '$' + "fp, " + '$' + "sp")
  52         elif re.match("powerpc64le", arch):
  53             self.assertTrue(inst.GetMnemonic(target) == "li")
  54             self.assertTrue(inst.GetOperands(target) == "4, 0")
  55         else:
  56             self.assertTrue(inst.GetMnemonic(target) == "movq")
  57             self.assertTrue(inst.GetOperands(target) ==
  58                             '%' + "rsp, " + '%' + "rbp")