316 lines
14 KiB
Python
316 lines
14 KiB
Python
"""Test the SBData APIs."""
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import os
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import unittest2
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import lldb
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import pexpect
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from lldbtest import *
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from math import fabs
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import lldbutil
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class SBDataAPICase(TestBase):
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mydir = os.path.join("python_api", "sbdata")
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_with_dsym_and_run_command(self):
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"""Test the SBData APIs."""
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self.buildDsym()
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self.data_api()
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@python_api_test
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@dwarf_test
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def test_with_dwarf_and_run_command(self):
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"""Test the SBData APIs."""
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self.buildDwarf()
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self.data_api()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break on inside main.cpp.
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self.line = line_number('main.cpp', '// set breakpoint here')
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def data_api(self):
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"""Test the SBData APIs."""
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self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = process.GetThreadAtIndex(0)
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frame = thread.GetSelectedFrame()
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if self.TraceOn():
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print frame
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foobar = frame.FindVariable('foobar')
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self.assertTrue(foobar.IsValid())
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if self.TraceOn():
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print foobar
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data = foobar.GetPointeeData(0, 2)
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if self.TraceOn():
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print data
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offset = 0
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error = lldb.SBError()
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1')
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offset += 4
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low = data.GetSignedInt16(error, offset)
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offset += 2
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high = data.GetSignedInt16(error, offset)
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offset += 2
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self.assertTrue ((low == 9 and high == 0) or (low == 0 and high == 9), 'foo[0].b == 9')
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self.assertTrue( fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[0].c == 3.14')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'foo[1].a == 8')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'foo[1].b == 5')
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offset += 4
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self.runCmd("n")
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offset = 16
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'saved foo[1].b == 5')
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data = foobar.GetPointeeData(1, 1)
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offset = 0
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self.assertTrue(data.GetSignedInt32(error, offset) == 8, 'new foo[1].a == 8')
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offset += 4
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self.assertTrue(data.GetSignedInt32(error, offset) == 7, 'new foo[1].a == 7')
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offset += 8
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 0, 'do not read beyond end')
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star_foobar = foobar.Dereference()
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self.assertTrue(star_foobar.IsValid())
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data = star_foobar.GetData()
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if self.TraceOn():
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print data
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offset = 0
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 9, 'foo[0].b == 9')
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foobar_addr = star_foobar.GetLoadAddress()
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foobar_addr += 12
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# http://llvm.org/bugs/show_bug.cgi?id=11579
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# lldb::SBValue::CreateValueFromAddress does not verify SBType::GetPointerType succeeds
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# This should not crash LLDB.
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nothing = foobar.CreateValueFromAddress("nothing", foobar_addr, star_foobar.GetType().GetBasicType(lldb.eBasicTypeInvalid))
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new_foobar = foobar.CreateValueFromAddress("f00", foobar_addr, star_foobar.GetType())
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self.assertTrue(new_foobar.IsValid())
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if self.TraceOn():
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print new_foobar
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data = new_foobar.GetData()
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if self.TraceOn():
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print data
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self.assertTrue(data.uint32[0] == 8, 'then foo[1].a == 8')
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self.assertTrue(data.uint32[1] == 7, 'then foo[1].b == 7')
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self.assertTrue(fabs(data.float[2] - 3.14) < 1, 'foo[1].c == 3.14') # exploiting that sizeof(uint32) == sizeof(float)
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self.runCmd("n")
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offset = 0
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'then foo[1].a == 8')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'then foo[1].b == 7')
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offset += 4
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self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14')
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data = new_foobar.GetData()
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if self.TraceOn():
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print data
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offset = 0
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'finally foo[1].a == 8')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'finally foo[1].b == 7')
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offset += 4
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self.assertTrue(fabs(data.GetFloat(error, offset) - 6.28) < 1, 'foo[1].c == 6.28')
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self.runCmd("n")
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barfoo = frame.FindVariable('barfoo')
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data = barfoo.GetData()
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if self.TraceOn():
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print barfoo
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if self.TraceOn():
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print data
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offset = 0
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'barfoo[0].a = 1')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 2, 'barfoo[0].b == 2')
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offset += 4
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self.assertTrue(fabs(data.GetFloat(error, offset) - 3) < 1, 'barfoo[0].c == 3')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 4, 'barfoo[1].a = 4')
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offset += 4
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'barfoo[1].b == 5')
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offset += 4
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self.assertTrue(fabs(data.GetFloat(error, offset) - 6) < 1, 'barfoo[1].c == 6')
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new_object = barfoo.CreateValueFromData("new_object",data,barfoo.GetType().GetBasicType(lldb.eBasicTypeInt))
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if self.TraceOn():
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print new_object
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self.assertTrue(new_object.GetLoadAddress() == 0xFFFFFFFFFFFFFFFF, 'GetLoadAddress() == invalid')
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self.assertTrue(new_object.AddressOf().IsValid() == False, 'AddressOf() == invalid')
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self.assertTrue(new_object.GetAddress().IsValid() == False, 'GetAddress() == invalid')
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self.assertTrue(new_object.GetValue() == "1", 'new_object == 1')
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data.SetData(error, 'A\0\0\0', data.GetByteOrder(), data.GetAddressByteSize())
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data2 = lldb.SBData()
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data2.SetData(error, 'BCD', data.GetByteOrder(), data.GetAddressByteSize())
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data.Append(data2)
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if self.TraceOn():
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print data
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# this breaks on EBCDIC
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offset = 0
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self.assertTrue(data.GetUnsignedInt32(error, offset) == 65, 'made-up data == 65')
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offset += 4
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self.assertTrue(data.GetUnsignedInt8(error, offset) == 66, 'made-up data == 66')
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offset += 1
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self.assertTrue(data.GetUnsignedInt8(error, offset) == 67, 'made-up data == 67')
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offset += 1
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self.assertTrue(data.GetUnsignedInt8(error, offset) == 68, 'made-up data == 68')
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offset += 1
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# check the new API calls introduced per LLVM bugzilla enhancement request
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# 11619 (Allow creating SBData values from arrays or primitives in Python)
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data2 = lldb.SBData.CreateDataFromCString(process.GetByteOrder(),process.GetAddressByteSize(),'hello!')
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self.assertTrue(data2.uint8[0] == 104, 'h == 104')
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self.assertTrue(data2.uint8[1] == 101, 'e == 101')
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self.assertTrue(data2.uint8[2] == 108, 'l == 108')
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self.assertTrue(data2.GetUnsignedInt8(error,3) == 108, 'l == 108')
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self.assertTrue(data2.uint8[4] == 111, 'o == 111')
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self.assertTrue(data2.GetUnsignedInt8(error,5) == 33, '! == 33')
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self.assertTrue(data2.uint8[6] == 0, 'binary 0 terminator')
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data2 = lldb.SBData.CreateDataFromUInt64Array(process.GetByteOrder(),process.GetAddressByteSize(),[1,2,3,4,5])
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self.assertTrue(data2.GetUnsignedInt64(error,0) == 1, 'data2[0] = 1')
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self.assertTrue(data2.GetUnsignedInt64(error,8) == 2, 'data2[1] = 2')
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self.assertTrue(data2.GetUnsignedInt64(error,16) == 3, 'data2[2] = 3')
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self.assertTrue(data2.GetUnsignedInt64(error,24) == 4, 'data2[3] = 4')
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self.assertTrue(data2.GetUnsignedInt64(error,32) == 5, 'data2[4] = 5')
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self.assertTrue(data2.uint64s == [1,2,3,4,5], 'read_data_helper failure: data2 == [1,2,3,4,5]')
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data2 = lldb.SBData.CreateDataFromSInt32Array(process.GetByteOrder(),process.GetAddressByteSize(),[2, -2])
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self.assertTrue(data2.sint32[0:2] == [2,-2], 'signed32 data2 = [2,-2]')
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data2.Append(lldb.SBData.CreateDataFromSInt64Array(process.GetByteOrder(),process.GetAddressByteSize(),[2, -2]))
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self.assertTrue(data2.GetSignedInt32(error,0) == 2, 'signed32 data2[0] = 2')
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self.assertTrue(data2.GetSignedInt32(error,4) == -2, 'signed32 data2[1] = -2')
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self.assertTrue(data2.sint64[1:3] == [2,-2], 'signed64 data2 = [2,-2]')
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data2 = lldb.SBData.CreateDataFromUInt32Array(process.GetByteOrder(),process.GetAddressByteSize(),[1,2,3,4,5])
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self.assertTrue(data2.GetUnsignedInt32(error,0) == 1, '32-bit data2[0] = 1')
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self.assertTrue(data2.GetUnsignedInt32(error,4) == 2, '32-bit data2[1] = 2')
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self.assertTrue(data2.GetUnsignedInt32(error,8) == 3, '32-bit data2[2] = 3')
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self.assertTrue(data2.GetUnsignedInt32(error,12) == 4, '32-bit data2[3] = 4')
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self.assertTrue(data2.GetUnsignedInt32(error,16) == 5, '32-bit data2[4] = 5')
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data2 = lldb.SBData.CreateDataFromDoubleArray(process.GetByteOrder(),process.GetAddressByteSize(),[3.14,6.28,2.71])
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self.assertTrue( fabs(data2.GetDouble(error,0) - 3.14) < 0.5, 'double data2[0] = 3.14')
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self.assertTrue( fabs(data2.GetDouble(error,8) - 6.28) < 0.5, 'double data2[1] = 6.28')
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self.assertTrue( fabs(data2.GetDouble(error,16) - 2.71) < 0.5, 'double data2[2] = 2.71')
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data2 = lldb.SBData()
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data2.SetDataFromCString('hello!')
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self.assertTrue(data2.GetUnsignedInt8(error,0) == 104, 'set h == 104')
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self.assertTrue(data2.GetUnsignedInt8(error,1) == 101, 'set e == 101')
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self.assertTrue(data2.GetUnsignedInt8(error,2) == 108, 'set l == 108')
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self.assertTrue(data2.GetUnsignedInt8(error,3) == 108, 'set l == 108')
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self.assertTrue(data2.GetUnsignedInt8(error,4) == 111, 'set o == 111')
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self.assertTrue(data2.GetUnsignedInt8(error,5) == 33, 'set ! == 33')
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self.assertTrue(data2.GetUnsignedInt8(error,6) == 0, 'set binary 0 terminator')
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data2.SetDataFromUInt64Array([1,2,3,4,5])
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self.assertTrue(data2.GetUnsignedInt64(error,0) == 1, 'set data2[0] = 1')
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self.assertTrue(data2.GetUnsignedInt64(error,8) == 2, 'set data2[1] = 2')
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self.assertTrue(data2.GetUnsignedInt64(error,16) == 3, 'set data2[2] = 3')
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self.assertTrue(data2.GetUnsignedInt64(error,24) == 4, 'set data2[3] = 4')
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self.assertTrue(data2.GetUnsignedInt64(error,32) == 5, 'set data2[4] = 5')
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self.assertTrue(data2.uint64[0] == 1, 'read_data_helper failure: set data2[0] = 1')
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self.assertTrue(data2.uint64[1] == 2, 'read_data_helper failure: set data2[1] = 2')
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self.assertTrue(data2.uint64[2] == 3, 'read_data_helper failure: set data2[2] = 3')
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self.assertTrue(data2.uint64[3] == 4, 'read_data_helper failure: set data2[3] = 4')
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self.assertTrue(data2.uint64[4] == 5, 'read_data_helper failure: set data2[4] = 5')
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self.assertTrue(data2.uint64[0:2] == [1,2], 'read_data_helper failure: set data2[0:2] = [1,2]')
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data2.SetDataFromSInt32Array([2, -2])
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self.assertTrue(data2.GetSignedInt32(error,0) == 2, 'set signed32 data2[0] = 2')
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self.assertTrue(data2.GetSignedInt32(error,4) == -2, 'set signed32 data2[1] = -2')
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data2.SetDataFromSInt64Array([2, -2])
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self.assertTrue(data2.GetSignedInt32(error,0) == 2, 'set signed64 data2[0] = 2')
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self.assertTrue(data2.GetSignedInt32(error,8) == -2, 'set signed64 data2[1] = -2')
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data2.SetDataFromUInt32Array([1,2,3,4,5])
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self.assertTrue(data2.GetUnsignedInt32(error,0) == 1, 'set 32-bit data2[0] = 1')
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self.assertTrue(data2.GetUnsignedInt32(error,4) == 2, 'set 32-bit data2[1] = 2')
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self.assertTrue(data2.GetUnsignedInt32(error,8) == 3, 'set 32-bit data2[2] = 3')
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self.assertTrue(data2.GetUnsignedInt32(error,12) == 4, 'set 32-bit data2[3] = 4')
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self.assertTrue(data2.GetUnsignedInt32(error,16) == 5, 'set 32-bit data2[4] = 5')
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self.assertTrue(data2.uint32[0] == 1, 'read_data_helper failure: set 32-bit data2[0] = 1')
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self.assertTrue(data2.uint32[1] == 2, 'read_data_helper failure: set 32-bit data2[1] = 2')
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self.assertTrue(data2.uint32[2] == 3, 'read_data_helper failure: set 32-bit data2[2] = 3')
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self.assertTrue(data2.uint32[3] == 4, 'read_data_helper failure: set 32-bit data2[3] = 4')
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self.assertTrue(data2.uint32[4] == 5, 'read_data_helper failure: set 32-bit data2[4] = 5')
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data2.SetDataFromDoubleArray([3.14,6.28,2.71])
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self.assertTrue( fabs(data2.GetDouble(error,0) - 3.14) < 0.5, 'set double data2[0] = 3.14')
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self.assertTrue( fabs(data2.GetDouble(error,8) - 6.28) < 0.5, 'set double data2[1] = 6.28')
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self.assertTrue( fabs(data2.GetDouble(error,16) - 2.71) < 0.5, 'set double data2[2] = 2.71')
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self.assertTrue( fabs(data2.double[0] - 3.14) < 0.5, 'read_data_helper failure: set double data2[0] = 3.14')
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self.assertTrue( fabs(data2.double[1] - 6.28) < 0.5, 'read_data_helper failure: set double data2[1] = 6.28')
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self.assertTrue( fabs(data2.double[2] - 2.71) < 0.5, 'read_data_helper failure: set double data2[2] = 2.71')
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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