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"""
Use lldb Python API to disassemble raw machine code bytes
"""
from io import StringIO
import sys
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class Disassemble_VST1_64(TestBase):
@no_debug_info_test
@skipIfLLVMTargetMissing("ARM")
def test_disassemble_invalid_vst_1_64_raw_data(self):
"""Test disassembling invalid vst1.64 raw bytes with the API."""
# Create a target from the debugger.
target = self.dbg.CreateTargetWithFileAndTargetTriple(
"", "thumbv7-apple-macosx"
)
self.assertTrue(target, VALID_TARGET)
raw_bytes = bytearray(
[
0xF0,
0xB5,
0x03,
0xAF,
0x2D,
0xE9,
0x00,
0x0D,
0xAD,
0xF1,
0x40,
0x04,
0x24,
0xF0,
0x0F,
0x04,
0xA5,
0x46,
]
)
assembly = """
push {r4, r5, r6, r7, lr}
add r7, sp, #0xc
push.w {r8, r10, r11}
sub.w r4, sp, #0x40
bic r4, r4, #0xf
mov sp, r4
"""
def split(s):
return [x.strip() for x in s.strip().splitlines()]
insts = target.GetInstructions(lldb.SBAddress(), raw_bytes)
if self.TraceOn():
print()
for i in insts:
print("Disassembled %s" % str(i))
sio = StringIO()
insts.Print(sio)
self.assertEqual(split(assembly), split(sio.getvalue()))
self.assertEqual(insts.GetSize(), len(split(assembly)))
for i, asm in enumerate(split(assembly)):
inst = insts.GetInstructionAtIndex(i)
sio = StringIO()
inst.Print(sio)
self.assertEqual(asm, sio.getvalue().strip())
raw_bytes = bytearray([0x04, 0xF9, 0xED, 0x82])
insts = target.GetInstructions(lldb.SBAddress(), 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))
self.assertEqual(inst.GetMnemonic(target), "vst1.64")
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