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| """
Test retrieval of SBAddress from function/symbol, disassembly, and SBAddress APIs.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class DisasmAPITestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to of function 'c'.
self.line1 = line_number(
'main.c', '// Find the line number for breakpoint 1 here.')
self.line2 = line_number(
'main.c', '// Find the line number for breakpoint 2 here.')
@add_test_categories(['pyapi'])
@expectedFailureAll(oslist=["windows"], bugnumber='llvm.org/pr21765')
def test(self):
"""Exercise getting SBAddress objects, disassembly, and SBAddress APIs."""
self.build()
exe = self.getBuildArtifact("a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create the two breakpoints inside function 'a'.
breakpoint1 = target.BreakpointCreateByLocation('main.c', self.line1)
breakpoint2 = target.BreakpointCreateByLocation('main.c', self.line2)
#print("breakpoint1:", breakpoint1)
#print("breakpoint2:", breakpoint2)
self.assertTrue(breakpoint1 and
breakpoint1.GetNumLocations() == 1,
VALID_BREAKPOINT)
self.assertTrue(breakpoint2 and
breakpoint2.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# Frame #0 should be on self.line1.
self.assertTrue(process.GetState() == lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
self.assertTrue(
thread.IsValid(),
"There should be a thread stopped due to breakpoint condition")
frame0 = thread.GetFrameAtIndex(0)
lineEntry = frame0.GetLineEntry()
self.assertTrue(lineEntry.GetLine() == self.line1)
address1 = lineEntry.GetStartAddress()
#print("address1:", address1)
# Now call SBTarget.ResolveSymbolContextForAddress() with address1.
context1 = target.ResolveSymbolContextForAddress(
address1, lldb.eSymbolContextEverything)
self.assertTrue(context1)
if self.TraceOn():
print("context1:", context1)
# Continue the inferior, the breakpoint 2 should be hit.
process.Continue()
self.assertTrue(process.GetState() == lldb.eStateStopped)
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
self.assertTrue(
thread.IsValid(),
"There should be a thread stopped due to breakpoint condition")
frame0 = thread.GetFrameAtIndex(0)
lineEntry = frame0.GetLineEntry()
self.assertTrue(lineEntry.GetLine() == self.line2)
# Verify that the symbol and the function has the same address range
# per function 'a'.
symbol = context1.GetSymbol()
function = frame0.GetFunction()
self.assertTrue(symbol and function)
disasm_output = lldbutil.disassemble(target, symbol)
if self.TraceOn():
print("symbol:", symbol)
print("disassembly=>\n", disasm_output)
disasm_output = lldbutil.disassemble(target, function)
if self.TraceOn():
print("function:", function)
print("disassembly=>\n", disasm_output)
sa1 = symbol.GetStartAddress()
#print("sa1:", sa1)
#print("sa1.GetFileAddress():", hex(sa1.GetFileAddress()))
#ea1 = symbol.GetEndAddress()
#print("ea1:", ea1)
sa2 = function.GetStartAddress()
#print("sa2:", sa2)
#print("sa2.GetFileAddress():", hex(sa2.GetFileAddress()))
#ea2 = function.GetEndAddress()
#print("ea2:", ea2)
self.assertTrue(sa1 and sa2 and sa1 == sa2,
"The two starting addresses should be the same")
from lldbsuite.test.lldbutil import get_description
desc1 = get_description(sa1)
desc2 = get_description(sa2)
self.assertTrue(
desc1 and desc2 and desc1 == desc2,
"SBAddress.GetDescription() API of sa1 and sa2 should return the same string")
|