4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
166 lines
7.5 KiB
Python
166 lines
7.5 KiB
Python
"""
|
|
Test some SBValue APIs.
|
|
"""
|
|
|
|
import os, time
|
|
import re
|
|
import unittest2
|
|
import lldb, lldbutil
|
|
from lldbtest import *
|
|
|
|
class ChangeValueAPITestCase(TestBase):
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
|
|
@python_api_test
|
|
@dsym_test
|
|
def test_change_value_with_dsym(self):
|
|
"""Exercise the SBValue::SetValueFromCString API."""
|
|
d = {'EXE': self.exe_name}
|
|
self.buildDsym(dictionary=d)
|
|
self.setTearDownCleanup(dictionary=d)
|
|
self.change_value_api(self.exe_name)
|
|
|
|
@python_api_test
|
|
@dwarf_test
|
|
def test_change_value_with_dwarf(self):
|
|
"""Exercise the SBValue::SetValueFromCString API."""
|
|
d = {'EXE': self.exe_name}
|
|
self.buildDwarf(dictionary=d)
|
|
self.setTearDownCleanup(dictionary=d)
|
|
self.change_value_api(self.exe_name)
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# We'll use the test method name as the exe_name.
|
|
self.exe_name = self.testMethodName
|
|
# Find the line number to of function 'c'.
|
|
self.line = line_number('main.c', '// Stop here and set values')
|
|
self.check_line = line_number('main.c', '// Stop here and check values')
|
|
self.end_line = line_number ('main.c', '// Set a breakpoint here at the end')
|
|
|
|
@skipIfGcc # llvm.org/pr15039: If GCC is the test compiler, stdout is not available via lldb.SBProcess.GetSTDOUT()
|
|
def change_value_api(self, exe_name):
|
|
"""Exercise some SBValue APIs."""
|
|
exe = os.path.join(os.getcwd(), exe_name)
|
|
|
|
# Create a target by the debugger.
|
|
target = self.dbg.CreateTarget(exe)
|
|
self.assertTrue(target, VALID_TARGET)
|
|
|
|
# Create the breakpoint inside function 'main'.
|
|
breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
|
|
self.assertTrue(breakpoint, VALID_BREAKPOINT)
|
|
|
|
# Create the breakpoint inside the function 'main'
|
|
check_breakpoint = target.BreakpointCreateByLocation('main.c', self.check_line)
|
|
self.assertTrue(check_breakpoint, VALID_BREAKPOINT)
|
|
|
|
# Create the breakpoint inside function 'main'.
|
|
end_breakpoint = target.BreakpointCreateByLocation('main.c', self.end_line)
|
|
self.assertTrue(end_breakpoint, VALID_BREAKPOINT)
|
|
|
|
# Now launch the process, and do not stop at entry point.
|
|
process = target.LaunchSimple(None, None, os.getcwd())
|
|
self.assertTrue(process, PROCESS_IS_VALID)
|
|
|
|
# Get Frame #0.
|
|
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)
|
|
self.assertTrue (frame0.IsValid(), "Got a valid frame.")
|
|
|
|
# Get the val variable and change it:
|
|
error = lldb.SBError()
|
|
|
|
val_value = frame0.FindVariable ("val")
|
|
self.assertTrue (val_value.IsValid(), "Got the SBValue for val")
|
|
actual_value = val_value.GetValueAsSigned (error, 0);
|
|
self.assertTrue (error.Success(), "Got a value from val")
|
|
self.assertTrue (actual_value == 100, "Got the right value from val")
|
|
|
|
result = val_value.SetValueFromCString ("12345")
|
|
self.assertTrue (result, "Setting val returned True.")
|
|
actual_value = val_value.GetValueAsSigned (error, 0);
|
|
self.assertTrue (error.Success(), "Got a changed value from val")
|
|
self.assertTrue (actual_value == 12345, "Got the right changed value from val")
|
|
|
|
# Now check that we can set a structure element:
|
|
|
|
mine_value = frame0.FindVariable ("mine")
|
|
self.assertTrue (mine_value.IsValid(), "Got the SBValue for mine")
|
|
|
|
mine_second_value = mine_value.GetChildMemberWithName ("second_val")
|
|
self.assertTrue (mine_second_value.IsValid(), "Got second_val from mine")
|
|
actual_value = mine_second_value.GetValueAsUnsigned (error, 0)
|
|
self.assertTrue (error.Success(), "Got an unsigned value for second_val")
|
|
self.assertTrue (actual_value == 5555)
|
|
|
|
result = mine_second_value.SetValueFromCString ("98765")
|
|
self.assertTrue (result, "Success setting mine.second_value.")
|
|
actual_value = mine_second_value.GetValueAsSigned (error, 0);
|
|
self.assertTrue (error.Success(), "Got a changed value from mine.second_val")
|
|
self.assertTrue (actual_value == 98765, "Got the right changed value from mine.second_val")
|
|
|
|
# Next do the same thing with the pointer version.
|
|
ptr_value = frame0.FindVariable ("ptr")
|
|
self.assertTrue (ptr_value.IsValid(), "Got the SBValue for ptr")
|
|
|
|
ptr_second_value = ptr_value.GetChildMemberWithName ("second_val")
|
|
self.assertTrue (ptr_second_value.IsValid(), "Got second_val from ptr")
|
|
actual_value = ptr_second_value.GetValueAsUnsigned (error, 0)
|
|
self.assertTrue (error.Success(), "Got an unsigned value for ptr->second_val")
|
|
self.assertTrue (actual_value == 6666)
|
|
|
|
result = ptr_second_value.SetValueFromCString ("98765")
|
|
self.assertTrue (result, "Success setting ptr->second_value.")
|
|
actual_value = ptr_second_value.GetValueAsSigned (error, 0);
|
|
self.assertTrue (error.Success(), "Got a changed value from ptr->second_val")
|
|
self.assertTrue (actual_value == 98765, "Got the right changed value from ptr->second_val")
|
|
|
|
# gcc may set multiple locations for breakpoint
|
|
breakpoint.SetEnabled(False)
|
|
|
|
# Now continue, grab the stdout and make sure we changed the real values as well...
|
|
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")
|
|
|
|
expected_value = "Val - 12345 Mine - 55, 98765, 55555555. Ptr - 66, 98765, 66666666"
|
|
stdout = process.GetSTDOUT(1000)
|
|
self.assertTrue (expected_value in stdout, "STDOUT showed changed values.")
|
|
|
|
# Finally, change the stack pointer to 0, and we should not make it to our end breakpoint.
|
|
frame0 = thread.GetFrameAtIndex(0)
|
|
self.assertTrue (frame0.IsValid(), "Second time: got a valid frame.")
|
|
sp_value = frame0.FindValue ("sp", lldb.eValueTypeRegister);
|
|
self.assertTrue (sp_value.IsValid(), "Got a stack pointer value")
|
|
result = sp_value.SetValueFromCString("1")
|
|
self.assertTrue (result, "Setting sp returned true.")
|
|
actual_value = sp_value.GetValueAsUnsigned (error, 0)
|
|
self.assertTrue (error.Success(), "Got a changed value for sp")
|
|
self.assertTrue (actual_value == 1, "Got the right changed value for sp.")
|
|
|
|
# Boundary condition test the SBValue.CreateValueFromExpression() API.
|
|
# LLDB should not crash!
|
|
nosuchval = mine_value.CreateValueFromExpression(None, None)
|
|
|
|
process.Continue()
|
|
|
|
self.assertTrue(process.GetState() == lldb.eStateStopped)
|
|
thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
|
|
self.assertTrue(thread == None, "We should not have managed to hit our second breakpoint with sp == 1")
|
|
|
|
process.Kill()
|
|
|
|
if __name__ == '__main__':
|
|
import atexit
|
|
lldb.SBDebugger.Initialize()
|
|
atexit.register(lambda: lldb.SBDebugger.Terminate())
|
|
unittest2.main()
|