ed4019802d
among other things:
// When stopped on breakppint 1, we can get the line entry using SBFrame API
// SBFrame.GetLineEntry(). We'll get the start address for the the line entry
// with the SBAddress type, resolve the symbol context using the SBTarget API
// SBTarget.ResolveSymbolContextForAddress() in order to get the SBSymbol.
//
// We then stop at breakpoint 2, get the SBFrame, and the the SBFunction object.
//
// The address from calling GetStartAddress() on the symbol and the function
// should point to the same address, and we also verify that.
And add one utility function disassemble(target, function_or_symbol) to lldbutil.py:
"""Disassemble the function or symbol given a target.
It returns the disassembly content in a string object.
"""
TestDisasm.py uses the disassemble() function to do disassembly on the SBSymbol, and
then the SBFunction object.
llvm-svn: 126955
122 lines
4.7 KiB
Python
122 lines
4.7 KiB
Python
"""
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Test retrieval of SBAddress from function/symbol, disassembly, and SBAddress APIs.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class DisasmAPITestCase(TestBase):
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mydir = os.path.join("python_api", "function_symbol")
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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def test_with_dsym(self):
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"""Exercise getting SBAddress objects, disassembly, and SBAddress APIs."""
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self.buildDsym()
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self.disasm_and_address_api()
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@python_api_test
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def test_with_dwarf(self):
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"""Exercise getting SBAddress objects, disassembly, and SBAddress APIs."""
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self.buildDwarf()
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self.disasm_and_address_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 of function 'c'.
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self.line1 = line_number('main.c', '// Find the line number for breakpoint 1 here.')
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self.line2 = line_number('main.c', '// Find the line number for breakpoint 2 here.')
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def disasm_and_address_api(self):
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"""Exercise getting SBAddress objects, disassembly, and SBAddress APIs."""
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target.IsValid(), VALID_TARGET)
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# Now create the two breakpoints inside function 'a'.
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breakpoint1 = target.BreakpointCreateByLocation('main.c', self.line1)
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breakpoint2 = target.BreakpointCreateByLocation('main.c', self.line2)
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#print "breakpoint1:", breakpoint1
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#print "breakpoint2:", breakpoint2
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self.assertTrue(breakpoint1.IsValid() and
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breakpoint1.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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self.assertTrue(breakpoint2.IsValid() and
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breakpoint2.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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error = lldb.SBError()
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self.process = target.Launch (self.dbg.GetListener(), None, None, os.ctermid(), os.ctermid(), os.ctermid(), None, 0, False, error)
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self.process = target.GetProcess()
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self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID)
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# Frame #0 should be on self.line1.
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self.assertTrue(self.process.GetState() == lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(self.process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition")
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frame0 = thread.GetFrameAtIndex(0)
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lineEntry = frame0.GetLineEntry()
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self.assertTrue(lineEntry.GetLine() == self.line1)
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address1 = lineEntry.GetStartAddress()
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#print "address1:", address1
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# Now call SBTarget.ResolveSymbolContextForAddress() with address1.
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context1 = target.ResolveSymbolContextForAddress(address1, lldb.eSymbolContextEverything)
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self.assertTrue(context1.IsValid())
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print "context1:", context1
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# Continue the inferior, the breakpoint 2 should be hit.
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self.process.Continue()
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self.assertTrue(self.process.GetState() == lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(self.process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition")
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frame0 = thread.GetFrameAtIndex(0)
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lineEntry = frame0.GetLineEntry()
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self.assertTrue(lineEntry.GetLine() == self.line2)
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# Verify that the symbol and the function has the same address range per function 'a'.
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symbol = context1.GetSymbol()
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function = frame0.GetFunction()
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self.assertTrue(symbol.IsValid() and function.IsValid())
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print "symbol:", symbol
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print "disassembly=>\n", lldbutil.disassemble(target, symbol)
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print "function:", function
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print "disassembly=>\n", lldbutil.disassemble(target, function)
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sa1 = symbol.GetStartAddress()
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#print "sa1:", sa1
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#ea1 = symbol.GetEndAddress()
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#print "ea1:", ea1
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sa2 = function.GetStartAddress()
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#print "sa2:", sa2
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#ea2 = function.GetEndAddress()
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#print "ea2:", ea2
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stream1 = lldb.SBStream()
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sa1.GetDescription(stream1)
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stream2 = lldb.SBStream()
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sa2.GetDescription(stream2)
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self.expect(stream1.GetData(), "The two starting addresses should be the same", exe=False,
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startstr = stream2.GetData())
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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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