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"""Test the SBData APIs."""
from __future__ import print_function
from math import fabs
import os
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class SBDataAPICase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break on inside main.cpp.
self.line = line_number('main.cpp', '// set breakpoint here')
@add_test_categories(['pyapi'])
def test_with_run_command(self):
"""Test the SBData APIs."""
self.build()
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
target = self.dbg.GetSelectedTarget()
process = target.GetProcess()
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
self.assertIsNotNone(thread)
frame = thread.GetSelectedFrame()
if self.TraceOn():
print(frame)
foobar = frame.FindVariable('foobar')
self.assertTrue(foobar.IsValid())
if self.TraceOn():
print(foobar)
data = foobar.GetPointeeData(0, 2)
if self.TraceOn():
print(data)
offset = 0
error = lldb.SBError()
self.assert_data(data.GetUnsignedInt32, offset, 1)
offset += 4
low = data.GetSignedInt16(error, offset)
self.assertTrue(error.Success())
offset += 2
high = data.GetSignedInt16(error, offset)
self.assertTrue(error.Success())
offset += 2
self.assertTrue ((low == 9 and high == 0) or (low == 0 and high == 9), 'foo[0].b == 9')
self.assertTrue( fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[0].c == 3.14')
self.assertTrue(error.Success())
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 8)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 5)
offset += 4
self.runCmd("n")
offset = 16
self.assert_data(data.GetUnsignedInt32, offset, 5)
data = foobar.GetPointeeData(1, 1)
offset = 0
self.assert_data(data.GetSignedInt32, offset, 8)
offset += 4
self.assert_data(data.GetSignedInt32, offset, 7)
offset += 8
self.assertTrue(data.GetUnsignedInt32(error, offset) == 0, 'do not read beyond end')
self.assertTrue(not error.Success())
error.Clear() # clear the error for the next test
star_foobar = foobar.Dereference()
self.assertTrue(star_foobar.IsValid())
data = star_foobar.GetData()
if self.TraceOn():
print(data)
offset = 0
self.assert_data(data.GetUnsignedInt32, offset, 1)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 9)
foobar_addr = star_foobar.GetLoadAddress()
foobar_addr += 12
# http://llvm.org/bugs/show_bug.cgi?id=11579
# lldb::SBValue::CreateValueFromAddress does not verify SBType::GetPointerType succeeds
# This should not crash LLDB.
nothing = foobar.CreateValueFromAddress("nothing", foobar_addr, star_foobar.GetType().GetBasicType(lldb.eBasicTypeInvalid))
new_foobar = foobar.CreateValueFromAddress("f00", foobar_addr, star_foobar.GetType())
self.assertTrue(new_foobar.IsValid())
if self.TraceOn():
print(new_foobar)
data = new_foobar.GetData()
if self.TraceOn():
print(data)
self.assertTrue(data.uint32[0] == 8, 'then foo[1].a == 8')
self.assertTrue(data.uint32[1] == 7, 'then foo[1].b == 7')
self.assertTrue(fabs(data.float[2] - 3.14) < 1, 'foo[1].c == 3.14') # exploiting that sizeof(uint32) == sizeof(float)
self.runCmd("n")
offset = 0
self.assert_data(data.GetUnsignedInt32, offset, 8)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 7)
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14')
self.assertTrue(error.Success())
data = new_foobar.GetData()
if self.TraceOn():
print(data)
offset = 0
self.assert_data(data.GetUnsignedInt32, offset, 8)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 7)
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 6.28) < 1, 'foo[1].c == 6.28')
self.assertTrue(error.Success())
self.runCmd("n")
barfoo = frame.FindVariable('barfoo')
data = barfoo.GetData()
if self.TraceOn():
print(barfoo)
if self.TraceOn():
print(data)
offset = 0
self.assert_data(data.GetUnsignedInt32, offset, 1)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 2)
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 3) < 1, 'barfoo[0].c == 3')
self.assertTrue(error.Success())
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 4)
offset += 4
self.assert_data(data.GetUnsignedInt32, offset, 5)
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 6) < 1, 'barfoo[1].c == 6')
self.assertTrue(error.Success())
new_object = barfoo.CreateValueFromData("new_object",data,barfoo.GetType().GetBasicType(lldb.eBasicTypeInt))
if self.TraceOn():
print(new_object)
self.assertTrue(new_object.GetValue() == "1", 'new_object == 1')
if data.GetByteOrder() == lldb.eByteOrderBig:
data.SetData(error, '\0\0\0A', data.GetByteOrder(), data.GetAddressByteSize())
else:
data.SetData(error, 'A\0\0\0', data.GetByteOrder(), data.GetAddressByteSize())
self.assertTrue(error.Success())
data2 = lldb.SBData()
data2.SetData(error, 'BCD', data.GetByteOrder(), data.GetAddressByteSize())
self.assertTrue(error.Success())
data.Append(data2)
if self.TraceOn():
print(data)
# this breaks on EBCDIC
offset = 0
self.assert_data(data.GetUnsignedInt32, offset, 65)
offset += 4
self.assert_data(data.GetUnsignedInt8, offset, 66)
offset += 1
self.assert_data(data.GetUnsignedInt8, offset, 67)
offset += 1
self.assert_data(data.GetUnsignedInt8, offset, 68)
offset += 1
# check the new API calls introduced per LLVM llvm.org/prenhancement request
# 11619 (Allow creating SBData values from arrays or primitives in Python)
hello_str = "hello!"
data2 = lldb.SBData.CreateDataFromCString(process.GetByteOrder(),process.GetAddressByteSize(),hello_str)
self.assertTrue(len(data2.uint8) == len(hello_str))
self.assertTrue(data2.uint8[0] == 104, 'h == 104')
self.assertTrue(data2.uint8[1] == 101, 'e == 101')
self.assertTrue(data2.uint8[2] == 108, 'l == 108')
self.assert_data(data2.GetUnsignedInt8, 3, 108) # l
self.assertTrue(data2.uint8[4] == 111, 'o == 111')
self.assert_data(data2.GetUnsignedInt8, 5, 33) # !
uint_lists = [ [1,2,3,4,5], [int(i) for i in [1, 2, 3, 4, 5]] ]
int_lists = [ [2, -2], [int(i) for i in [2, -2]] ]
for l in uint_lists:
data2 = lldb.SBData.CreateDataFromUInt64Array(process.GetByteOrder(), process.GetAddressByteSize(), l)
self.assert_data(data2.GetUnsignedInt64, 0, 1)
self.assert_data(data2.GetUnsignedInt64, 8, 2)
self.assert_data(data2.GetUnsignedInt64, 16, 3)
self.assert_data(data2.GetUnsignedInt64, 24, 4)
self.assert_data(data2.GetUnsignedInt64, 32, 5)
self.assertTrue(data2.uint64s == [1,2,3,4,5], 'read_data_helper failure: data2 == [1,2,3,4,5]')
for l in int_lists:
data2 = lldb.SBData.CreateDataFromSInt32Array(process.GetByteOrder(), process.GetAddressByteSize(), l)
self.assertTrue(data2.sint32[0:2] == [2,-2], 'signed32 data2 = [2,-2]')
data2.Append(lldb.SBData.CreateDataFromSInt64Array(process.GetByteOrder(), process.GetAddressByteSize(), int_lists[0]))
self.assert_data(data2.GetSignedInt32, 0, 2)
self.assert_data(data2.GetSignedInt32, 4, -2)
self.assertTrue(data2.sint64[1:3] == [2,-2], 'signed64 data2 = [2,-2]')
for l in int_lists:
data2 = lldb.SBData.CreateDataFromSInt64Array(process.GetByteOrder(), process.GetAddressByteSize(), l)
self.assert_data(data2.GetSignedInt64, 0, 2)
self.assert_data(data2.GetSignedInt64, 8, -2)
self.assertTrue(data2.sint64[0:2] == [2,-2], 'signed64 data2 = [2,-2]')
for l in uint_lists:
data2 = lldb.SBData.CreateDataFromUInt32Array(process.GetByteOrder(), process.GetAddressByteSize(), l)
self.assert_data(data2.GetUnsignedInt32,0, 1)
self.assert_data(data2.GetUnsignedInt32,4, 2)
self.assert_data(data2.GetUnsignedInt32,8, 3)
self.assert_data(data2.GetUnsignedInt32,12, 4)
self.assert_data(data2.GetUnsignedInt32,16, 5)
bool_list = [True, True, False, False, True, False]
data2 = lldb.SBData.CreateDataFromSInt32Array(process.GetByteOrder(), process.GetAddressByteSize(), bool_list)
self.assertTrue(data2.sint32[0:6] == [1, 1, 0, 0, 1, 0], 'signed32 data2 = [1, 1, 0, 0, 1, 0]')
data2 = lldb.SBData.CreateDataFromUInt32Array(process.GetByteOrder(), process.GetAddressByteSize(), bool_list)
self.assertTrue(data2.uint32[0:6] == [1, 1, 0, 0, 1, 0], 'unsigned32 data2 = [1, 1, 0, 0, 1, 0]')
data2 = lldb.SBData.CreateDataFromSInt64Array(process.GetByteOrder(), process.GetAddressByteSize(), bool_list)
self.assertTrue(data2.sint64[0:6] == [1, 1, 0, 0, 1, 0], 'signed64 data2 = [1, 1, 0, 0, 1, 0]')
data2 = lldb.SBData.CreateDataFromUInt64Array(process.GetByteOrder(), process.GetAddressByteSize(), bool_list)
self.assertTrue(data2.uint64[0:6] == [1, 1, 0, 0, 1, 0], 'signed64 data2 = [1, 1, 0, 0, 1, 0]')
data2 = lldb.SBData.CreateDataFromDoubleArray(process.GetByteOrder(),process.GetAddressByteSize(),[3.14,6.28,2.71])
self.assertTrue( fabs(data2.GetDouble(error,0) - 3.14) < 0.5, 'double data2[0] = 3.14')
self.assertTrue(error.Success())
self.assertTrue( fabs(data2.GetDouble(error,8) - 6.28) < 0.5, 'double data2[1] = 6.28')
self.assertTrue(error.Success())
self.assertTrue( fabs(data2.GetDouble(error,16) - 2.71) < 0.5, 'double data2[2] = 2.71')
self.assertTrue(error.Success())
data2 = lldb.SBData()
data2.SetDataFromCString(hello_str)
self.assertTrue(len(data2.uint8) == len(hello_str))
self.assert_data(data2.GetUnsignedInt8, 0, 104)
self.assert_data(data2.GetUnsignedInt8, 1, 101)
self.assert_data(data2.GetUnsignedInt8, 2, 108)
self.assert_data(data2.GetUnsignedInt8, 3, 108)
self.assert_data(data2.GetUnsignedInt8, 4, 111)
self.assert_data(data2.GetUnsignedInt8, 5, 33)
data2.SetDataFromUInt64Array([1,2,3,4,5])
self.assert_data(data2.GetUnsignedInt64, 0, 1)
self.assert_data(data2.GetUnsignedInt64, 8, 2)
self.assert_data(data2.GetUnsignedInt64, 16, 3)
self.assert_data(data2.GetUnsignedInt64, 24, 4)
self.assert_data(data2.GetUnsignedInt64, 32, 5)
self.assertTrue(data2.uint64[0] == 1, 'read_data_helper failure: set data2[0] = 1')
self.assertTrue(data2.uint64[1] == 2, 'read_data_helper failure: set data2[1] = 2')
self.assertTrue(data2.uint64[2] == 3, 'read_data_helper failure: set data2[2] = 3')
self.assertTrue(data2.uint64[3] == 4, 'read_data_helper failure: set data2[3] = 4')
self.assertTrue(data2.uint64[4] == 5, 'read_data_helper failure: set data2[4] = 5')
self.assertTrue(data2.uint64[0:2] == [1,2], 'read_data_helper failure: set data2[0:2] = [1,2]')
data2.SetDataFromSInt32Array([2, -2])
self.assert_data(data2.GetSignedInt32, 0, 2)
self.assert_data(data2.GetSignedInt32, 4, -2)
data2.SetDataFromSInt64Array([2, -2])
self.assert_data(data2.GetSignedInt64, 0, 2)
self.assert_data(data2.GetSignedInt64, 8, -2)
data2.SetDataFromUInt32Array([1,2,3,4,5])
self.assert_data(data2.GetUnsignedInt32, 0, 1)
self.assert_data(data2.GetUnsignedInt32, 4, 2)
self.assert_data(data2.GetUnsignedInt32, 8, 3)
self.assert_data(data2.GetUnsignedInt32, 12, 4)
self.assert_data(data2.GetUnsignedInt32, 16, 5)
self.assertTrue(data2.uint32[0] == 1, 'read_data_helper failure: set 32-bit data2[0] = 1')
self.assertTrue(data2.uint32[1] == 2, 'read_data_helper failure: set 32-bit data2[1] = 2')
self.assertTrue(data2.uint32[2] == 3, 'read_data_helper failure: set 32-bit data2[2] = 3')
self.assertTrue(data2.uint32[3] == 4, 'read_data_helper failure: set 32-bit data2[3] = 4')
self.assertTrue(data2.uint32[4] == 5, 'read_data_helper failure: set 32-bit data2[4] = 5')
data2.SetDataFromDoubleArray([3.14,6.28,2.71])
self.assertTrue( fabs(data2.GetDouble(error,0) - 3.14) < 0.5, 'set double data2[0] = 3.14')
self.assertTrue( fabs(data2.GetDouble(error,8) - 6.28) < 0.5, 'set double data2[1] = 6.28')
self.assertTrue( fabs(data2.GetDouble(error,16) - 2.71) < 0.5, 'set double data2[2] = 2.71')
self.assertTrue( fabs(data2.double[0] - 3.14) < 0.5, 'read_data_helper failure: set double data2[0] = 3.14')
self.assertTrue( fabs(data2.double[1] - 6.28) < 0.5, 'read_data_helper failure: set double data2[1] = 6.28')
self.assertTrue( fabs(data2.double[2] - 2.71) < 0.5, 'read_data_helper failure: set double data2[2] = 2.71')
def assert_data(self, func, arg, expected):
""" Asserts func(SBError error, arg) == expected. """
error = lldb.SBError()
result = func(error, arg)
if not error.Success():
stream = lldb.SBStream()
error.GetDescription(stream)
self.assertTrue(error.Success(),
"%s(error, %s) did not succeed: %s" % (func.__name__,
arg,
stream.GetData()))
self.assertTrue(expected == result, "%s(error, %s) == %s != %s" % (func.__name__, arg, result, expected))
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