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from __future__ import print_function
import gdbremote_testcase
import textwrap
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
def _extract_register_value(reg_info, reg_bank, byte_order, bytes_per_entry=8):
reg_offset = int(reg_info["offset"])*2
reg_byte_size = int(2 * int(reg_info["bitsize"]) / 8)
# Create slice with the contents of the register.
reg_slice = reg_bank[reg_offset:reg_offset+reg_byte_size]
reg_value = []
# Wrap slice according to bytes_per_entry.
for entry in textwrap.wrap(reg_slice, 2 * bytes_per_entry):
# Invert the bytes order if target uses little-endian.
if byte_order == lldb.eByteOrderLittle:
entry = "".join(reversed([entry[i:i+2] for i in range(0,
len(entry),2)]))
reg_value.append("0x" + entry)
return reg_value
class TestGdbRemoteGPacket(gdbremote_testcase.GdbRemoteTestCaseBase):
mydir = TestBase.compute_mydir(__file__)
def run_test_g_packet(self):
self.build()
self.prep_debug_monitor_and_inferior()
self.test_sequence.add_log_lines(
["read packet: $g#67",
{"direction": "send", "regex": r"^\$(.+)#[0-9a-fA-F]{2}$",
"capture": {1: "register_bank"}}],
True)
self.connect_to_debug_monitor()
context = self.expect_gdbremote_sequence()
register_bank = context.get("register_bank")
self.assertTrue(register_bank[0] != 'E')
self.test_sequence.add_log_lines(
["read packet: $G" + register_bank + "#00",
{"direction": "send", "regex": r"^\$(.+)#[0-9a-fA-F]{2}$",
"capture": {1: "G_reply"}}],
True)
context = self.expect_gdbremote_sequence()
self.assertTrue(context.get("G_reply")[0] != 'E')
@skipIfOutOfTreeDebugserver
@debugserver_test
@skipIfDarwinEmbedded
def test_g_packet_debugserver(self):
self.init_debugserver_test()
self.run_test_g_packet()
@skipIf(archs=no_match(["x86_64"]))
def g_returns_correct_data(self, with_suffix):
procs = self.prep_debug_monitor_and_inferior()
self.add_register_info_collection_packets()
if with_suffix:
self.add_thread_suffix_request_packets()
self.add_threadinfo_collection_packets()
context = self.expect_gdbremote_sequence()
self.assertIsNotNone(context)
# Gather register info.
reg_infos = self.parse_register_info_packets(context)
self.assertIsNotNone(reg_infos)
self.add_lldb_register_index(reg_infos)
# Index register info entries by name.
reg_infos = {info['name']: info for info in reg_infos}
# Gather thread info.
if with_suffix:
threads = self.parse_threadinfo_packets(context)
self.assertIsNotNone(threads)
thread_id = threads[0]
self.assertIsNotNone(thread_id)
else:
thread_id = None
# Send vCont packet to resume the inferior.
self.test_sequence.add_log_lines(["read packet: $vCont;c#a8",
{"direction": "send",
"regex": r"^\$T([0-9a-fA-F]{2}).*#[0-9a-fA-F]{2}$",
"capture": {1: "hex_exit_code"}},
],
True)
# Send g packet to retrieve the register bank
if thread_id:
g_request = "read packet: $g;thread:{:x}#00".format(thread_id)
else:
g_request = "read packet: $g#00"
self.test_sequence.add_log_lines(
[g_request,
{"direction": "send", "regex": r"^\$(.+)#[0-9a-fA-F]{2}$",
"capture": {1: "register_bank"}}],
True)
context = self.expect_gdbremote_sequence()
self.assertIsNotNone(context)
reg_bank = context.get("register_bank")
self.assertTrue(reg_bank[0] != 'E')
byte_order = self.get_target_byte_order()
get_reg_value = lambda reg_name : _extract_register_value(
reg_infos[reg_name], reg_bank, byte_order)
self.assertEqual(['0x0102030405060708'], get_reg_value('r8'))
self.assertEqual(['0x1112131415161718'], get_reg_value('r9'))
self.assertEqual(['0x2122232425262728'], get_reg_value('r10'))
self.assertEqual(['0x3132333435363738'], get_reg_value('r11'))
self.assertEqual(['0x4142434445464748'], get_reg_value('r12'))
self.assertEqual(['0x5152535455565758'], get_reg_value('r13'))
self.assertEqual(['0x6162636465666768'], get_reg_value('r14'))
self.assertEqual(['0x7172737475767778'], get_reg_value('r15'))
self.assertEqual(
['0x020406080a0c0e01', '0x030507090b0d0f00'], get_reg_value('xmm8'))
self.assertEqual(
['0x121416181a1c1e11', '0x131517191b1d1f10'], get_reg_value('xmm9'))
self.assertEqual(
['0x222426282a2c2e21', '0x232527292b2d2f20'], get_reg_value('xmm10'))
self.assertEqual(
['0x323436383a3c3e31', '0x333537393b3d3f30'], get_reg_value('xmm11'))
self.assertEqual(
['0x424446484a4c4e41', '0x434547494b4d4f40'], get_reg_value('xmm12'))
self.assertEqual(
['0x525456585a5c5e51', '0x535557595b5d5f50'], get_reg_value('xmm13'))
self.assertEqual(
['0x626466686a6c6e61', '0x636567696b6d6f60'], get_reg_value('xmm14'))
self.assertEqual(
['0x727476787a7c7e71', '0x737577797b7d7f70'], get_reg_value('xmm15'))
@llgs_test
def test_g_returns_correct_data_with_suffix_llgs(self):
self.init_llgs_test()
self.build()
self.set_inferior_startup_launch()
self.g_returns_correct_data(True)
@llgs_test
def test_g_returns_correct_data_no_suffix_llgs(self):
self.init_llgs_test()
self.build()
self.set_inferior_startup_launch()
self.g_returns_correct_data(False)
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