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"""Test the SBData APIs."""
import os
import unittest2
import lldb
import pexpect
from lldbtest import *
from math import fabs
class SBDataAPICase(TestBase):
mydir = os.path.join("python_api", "sbdata")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@python_api_test
def test_with_dsym_and_run_command(self):
"""Test the SBData APIs."""
self.buildDsym()
self.data_api()
@python_api_test
def test_with_dwarf_and_run_command(self):
"""Test the SBData APIs."""
self.buildDwarf()
self.data_api()
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')
def data_api(self):
"""Test the SBData APIs."""
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
self.expect("breakpoint set -f main.cpp -l %d" % self.line,
BREAKPOINT_CREATED,
startstr = "Breakpoint created: 1: file ='main.cpp', line = %d, locations = 1" %
self.line)
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 = process.GetThreadAtIndex(0)
frame = thread.GetSelectedFrame()
foobar = frame.FindVariable('foobar')
if self.TraceOn():
print foobar
data = foobar.GetPointeeData(0, 2)
if self.TraceOn():
print data
offset = 0
error = lldb.SBError()
self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1')
offset += 4
low = data.GetSignedInt16(error, offset)
offset += 2
high = data.GetSignedInt16(error, offset)
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')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'foo[1].a == 8')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'foo[1].b == 5')
offset += 4
self.runCmd("n")
offset = 16
self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'saved foo[1].b == 5')
data = foobar.GetPointeeData(1, 1)
offset = 0
self.assertTrue(data.GetSignedInt32(error, offset) == 8, 'new foo[1].a == 8')
offset += 4
self.assertTrue(data.GetSignedInt32(error, offset) == 7, 'new foo[1].a == 7')
offset += 8
self.assertTrue(data.GetUnsignedInt32(error, offset) == 0, 'do not read beyond end')
star_foobar = foobar.Dereference()
data = star_foobar.GetData()
if self.TraceOn():
print data
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 9, 'foo[0].b == 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())
if self.TraceOn():
print new_foobar
data = new_foobar.GetData()
if self.TraceOn():
print data
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'then foo[1].a == 8')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'then foo[1].b == 7')
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14')
self.runCmd("n")
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'then foo[1].a == 8')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'then foo[1].b == 7')
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14')
data = new_foobar.GetData()
if self.TraceOn():
print data
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'finally foo[1].a == 8')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'finally foo[1].b == 7')
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 6.28) < 1, 'foo[1].c == 6.28')
self.runCmd("n")
barfoo = frame.FindVariable('barfoo')
data = barfoo.GetData()
if self.TraceOn():
print barfoo
if self.TraceOn():
print data
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'barfoo[0].a = 1')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 2, 'barfoo[0].b == 2')
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 3) < 1, 'barfoo[0].c == 3')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 4, 'barfoo[1].a = 4')
offset += 4
self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'barfoo[1].b == 5')
offset += 4
self.assertTrue(fabs(data.GetFloat(error, offset) - 6) < 1, 'barfoo[1].c == 6')
new_object = barfoo.CreateValueFromData("new_object",data,barfoo.GetType().GetBasicType(lldb.eBasicTypeInt))
if self.TraceOn():
print new_object
self.assertTrue(new_object.GetLoadAddress() == 0xFFFFFFFFFFFFFFFF, 'GetLoadAddress() == invalid')
self.assertTrue(new_object.AddressOf().IsValid() == False, 'AddressOf() == invalid')
self.assertTrue(new_object.GetAddress().IsValid() == False, 'GetAddress() == invalid')
self.assertTrue(new_object.GetValue() == "1", 'new_object == 1')
data.SetData(error, 'A\0\0\0', data.GetByteOrder(), data.GetAddressByteSize())
data2 = lldb.SBData()
data2.SetData(error, 'BCD', data.GetByteOrder(), data.GetAddressByteSize())
data.Append(data2)
if self.TraceOn():
print data
# this breaks on EBCDIC
offset = 0
self.assertTrue(data.GetUnsignedInt32(error, offset) == 65, 'made-up data == 65')
offset += 4
self.assertTrue(data.GetUnsignedInt8(error, offset) == 66, 'made-up data == 66')
offset += 1
self.assertTrue(data.GetUnsignedInt8(error, offset) == 67, 'made-up data == 67')
offset += 1
self.assertTrue(data.GetUnsignedInt8(error, offset) == 68, 'made-up data == 68')
offset += 1
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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