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"""
Use lldb Python API to disassemble raw machine code bytes
"""
import re
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class DisassembleRawDataTestCase(TestBase):
@no_debug_info_test
@skipIfRemote
def test_disassemble_raw_data(self):
"""Test disassembling raw bytes with the API."""
# Create a target from the debugger.
arch = self.getArchitecture()
if re.match("mips*el", arch):
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "mipsel")
raw_bytes = bytearray([0x21, 0xF0, 0xA0, 0x03])
elif re.match("mips", arch):
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "mips")
raw_bytes = bytearray([0x03, 0xA0, 0xF0, 0x21])
elif re.match("powerpc64le", arch):
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "powerpc64le")
raw_bytes = bytearray([0x00, 0x00, 0x80, 0x38])
elif arch in ("aarch64", "arm64"):
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "aarch64")
raw_bytes = bytearray([0x60, 0x0C, 0x80, 0x52])
elif arch == "arm":
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "arm")
raw_bytes = bytearray([0x63, 0x30, 0xA0, 0xE3])
else:
target = self.dbg.CreateTargetWithFileAndTargetTriple("", "x86_64")
raw_bytes = bytearray([0x48, 0x89, 0xE5])
self.assertTrue(target, VALID_TARGET)
insts = target.GetInstructions(lldb.SBAddress(0, target), raw_bytes)
inst = insts.GetInstructionAtIndex(0)
if self.TraceOn():
print()
print("Raw bytes: ", [hex(x) for x in raw_bytes])
print("Disassembled%s" % str(inst))
if re.match("mips", arch):
self.assertEqual(inst.GetMnemonic(target), "move")
self.assertEqual(inst.GetOperands(target), "$" + "fp, " + "$" + "sp")
self.assertEqual(
inst.GetControlFlowKind(target), lldb.eInstructionControlFlowKindUnknown
)
elif re.match("powerpc64le", arch):
self.assertEqual(inst.GetMnemonic(target), "li")
self.assertEqual(inst.GetOperands(target), "4, 0")
self.assertEqual(
inst.GetControlFlowKind(target), lldb.eInstructionControlFlowKindUnknown
)
elif arch in ("aarch64", "arm64"):
self.assertEqual(inst.GetMnemonic(target), "mov")
self.assertEqual(inst.GetOperands(target), "w0, #0x63")
self.assertEqual(inst.GetComment(target), "=99 ")
self.assertEqual(
inst.GetControlFlowKind(target), lldb.eInstructionControlFlowKindUnknown
)
# Make sure that using colors doesn't affect the output here.
res = lldb.SBCommandReturnObject()
ci = self.dbg.GetCommandInterpreter()
ci.HandleCommand("settings set use-color true", res)
self.assertEqual(inst.GetOperands(target), "w0, #0x63")
self.assertEqual(inst.GetMnemonic(target), "mov")
self.assertEqual(inst.GetComment(target), "=99 ")
ci.HandleCommand("settings set use-color false", res)
elif arch == "arm":
self.assertEqual(inst.GetMnemonic(target), "mov")
self.assertEqual(inst.GetOperands(target), "r3, #99")
self.assertEqual(
inst.GetControlFlowKind(target), lldb.eInstructionControlFlowKindUnknown
)
else:
self.assertEqual(inst.GetMnemonic(target), "movq")
self.assertEqual(inst.GetOperands(target), "%" + "rsp, " + "%" + "rbp")
self.assertEqual(
inst.GetControlFlowKind(target), lldb.eInstructionControlFlowKindOther
)
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