def test_get_arg_vals_for_call_stack(self):
"""Exercise SBFrame.GetVariables() API to get argument vals."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create a breakpoint on main.c by name 'c'.
breakpoint = target.BreakpointCreateByName('c', 'a.out')
#print("breakpoint:", breakpoint)
self.assertTrue(breakpoint and breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Now launch the process, and do not stop at the entry point.
process = target.LaunchSimple(None, None,
self.get_process_working_directory())
process = target.GetProcess()
self.assertTrue(process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
# Keeps track of the number of times 'a' is called where it is within a
# depth of 3 of the 'c' leaf function.
callsOfA = 0
from six import StringIO as SixStringIO
session = SixStringIO()
while process.GetState() == lldb.eStateStopped:
thread = lldbutil.get_stopped_thread(process,
lldb.eStopReasonBreakpoint)
self.assertIsNotNone(thread)
# Inspect at most 3 frames.
numFrames = min(3, thread.GetNumFrames())
for i in range(numFrames):
frame = thread.GetFrameAtIndex(i)
if self.TraceOn():
print("frame:", frame)
name = frame.GetFunction().GetName()
if name == 'a':
callsOfA = callsOfA + 1
# We'll inspect only the arguments for the current frame:
#
# arguments => True
# locals => False
# statics => False
# in_scope_only => True
valList = frame.GetVariables(True, False, False, True)
argList = []
for val in valList:
argList.append(
"(%s)%s=%s" %
(val.GetTypeName(), val.GetName(), val.GetValue()))
print("%s(%s)" % (name, ", ".join(argList)), file=session)
# Also check the generic pc & stack pointer. We can't test their absolute values,
# but they should be valid. Uses get_GPRs() from the lldbutil
# module.
gpr_reg_set = lldbutil.get_GPRs(frame)
pc_value = gpr_reg_set.GetChildMemberWithName("pc")
self.assertTrue(pc_value, "We should have a valid PC.")
pc_value_int = int(pc_value.GetValue(), 0)
# Make sure on arm targets we dont mismatch PC value on the basis of thumb bit.
# Frame PC will not have thumb bit set in case of a thumb
# instruction as PC.
if self.getArchitecture() in ['arm', 'armv7', 'armv7k']:
pc_value_int &= ~1
self.assertTrue(
pc_value_int == frame.GetPC(),
"PC gotten as a value should equal frame's GetPC")
sp_value = gpr_reg_set.GetChildMemberWithName("sp")
self.assertTrue(sp_value,
"We should have a valid Stack Pointer.")
self.assertTrue(
int(sp_value.GetValue(), 0) == frame.GetSP(),
"SP gotten as a value should equal frame's GetSP")
print("---", file=session)
process.Continue()
# At this point, the inferior process should have exited.
self.assertTrue(process.GetState() == lldb.eStateExited,
PROCESS_EXITED)
# Expect to find 'a' on the call stacks two times.
self.assertTrue(callsOfA == 2,
"Expect to find 'a' on the call stacks two times")
# By design, the 'a' call frame has the following arg vals:
# o a((int)val=1, (char)ch='A')
# o a((int)val=3, (char)ch='A')
if self.TraceOn():
print("Full stack traces when stopped on the breakpoint 'c':")
print(session.getvalue())
self.expect(session.getvalue(),
"Argugment values displayed correctly",
exe=False,
substrs=[
"a((int)val=1, (char)ch='A')",
"a((int)val=3, (char)ch='A')"
])
def test_iter_registers(self):
"""Test iterator works correctly for lldbutil.iter_registers()."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateByLocation("main.cpp", self.line1)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple (None, None, self.get_process_working_directory())
if not process:
self.fail("SBTarget.LaunchProcess() failed")
import lldbsuite.test.lldbutil as lldbutil
for thread in process:
if thread.GetStopReason() == lldb.eStopReasonBreakpoint:
for frame in thread:
# Dump the registers of this frame using lldbutil.get_GPRs() and friends.
if self.TraceOn():
print(frame)
REGs = lldbutil.get_GPRs(frame)
num = len(REGs)
if self.TraceOn():
print("\nNumber of general purpose registers: {0:d}".format(num))
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("{0!s} => {1!s}".format(reg.GetName(), reg.GetValue()))
REGs = lldbutil.get_FPRs(frame)
num = len(REGs)
if self.TraceOn():
print("\nNumber of floating point registers: {0:d}".format(num))
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("{0!s} => {1!s}".format(reg.GetName(), reg.GetValue()))
REGs = lldbutil.get_ESRs(frame)
if self.platformIsDarwin():
num = len(REGs)
if self.TraceOn():
print("\nNumber of exception state registers: {0:d}".format(num))
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("{0!s} => {1!s}".format(reg.GetName(), reg.GetValue()))
else:
self.assertIsNone(REGs)
# And these should also work.
for kind in ["General Purpose Registers",
"Floating Point Registers"]:
REGs = lldbutil.get_registers(frame, kind)
self.assertTrue(REGs)
REGs = lldbutil.get_registers(frame, "Exception State Registers")
if self.platformIsDarwin():
self.assertIsNotNone(REGs)
else:
self.assertIsNone(REGs)
# We've finished dumping the registers for frame #0.
break
def test_iter_registers(self):
"""Test iterator works correctly for lldbutil.iter_registers()."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateByLocation("main.cpp", self.line1)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple(None, None,
self.get_process_working_directory())
if not process:
self.fail("SBTarget.LaunchProcess() failed")
import lldbsuite.test.lldbutil as lldbutil
for thread in process:
if thread.GetStopReason() == lldb.eStopReasonBreakpoint:
for frame in thread:
# Dump the registers of this frame using
# lldbutil.get_GPRs() and friends.
if self.TraceOn():
print(frame)
REGs = lldbutil.get_GPRs(frame)
num = len(REGs)
if self.TraceOn():
print("\nNumber of general purpose registers: %d" %
num)
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("%s => %s" % (reg.GetName(), reg.GetValue()))
REGs = lldbutil.get_FPRs(frame)
num = len(REGs)
if self.TraceOn():
print("\nNumber of floating point registers: %d" % num)
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("%s => %s" % (reg.GetName(), reg.GetValue()))
REGs = lldbutil.get_ESRs(frame)
if self.platformIsDarwin():
if self.getArchitecture(
) != 'armv7' and self.getArchitecture() != 'armv7k':
num = len(REGs)
if self.TraceOn():
print(
"\nNumber of exception state registers: %d"
% num)
for reg in REGs:
self.assertTrue(reg)
if self.TraceOn():
print("%s => %s" %
(reg.GetName(), reg.GetValue()))
else:
self.assertIsNone(REGs)
# And these should also work.
for kind in [
"General Purpose Registers",
"Floating Point Registers"
]:
REGs = lldbutil.get_registers(frame, kind)
self.assertTrue(REGs)
REGs = lldbutil.get_registers(frame,
"Exception State Registers")
if self.platformIsDarwin():
if self.getArchitecture(
) != 'armv7' and self.getArchitecture() != 'armv7k':
self.assertIsNotNone(REGs)
else:
self.assertIsNone(REGs)
# We've finished dumping the registers for frame #0.
break
def test_get_arg_vals_for_call_stack(self):
"""Exercise SBFrame.GetVariables() API to get argument vals."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create a breakpoint on main.c by name 'c'.
breakpoint = target.BreakpointCreateByName('c', 'a.out')
#print("breakpoint:", breakpoint)
self.assertTrue(breakpoint and
breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Now launch the process, and do not stop at the entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
process = target.GetProcess()
self.assertTrue(process.GetState() == lldb.eStateStopped,
PROCESS_STOPPED)
# Keeps track of the number of times 'a' is called where it is within a
# depth of 3 of the 'c' leaf function.
callsOfA = 0
from six import StringIO as SixStringIO
session = SixStringIO()
while process.GetState() == lldb.eStateStopped:
thread = lldbutil.get_stopped_thread(
process, lldb.eStopReasonBreakpoint)
self.assertIsNotNone(thread)
# Inspect at most 3 frames.
numFrames = min(3, thread.GetNumFrames())
for i in range(numFrames):
frame = thread.GetFrameAtIndex(i)
if self.TraceOn():
print("frame:", frame)
name = frame.GetFunction().GetName()
if name == 'a':
callsOfA = callsOfA + 1
# We'll inspect only the arguments for the current frame:
#
# arguments => True
# locals => False
# statics => False
# in_scope_only => True
valList = frame.GetVariables(True, False, False, True)
argList = []
for val in valList:
argList.append("(%s)%s=%s" % (val.GetTypeName(),
val.GetName(),
val.GetValue()))
print("%s(%s)" % (name, ", ".join(argList)), file=session)
# Also check the generic pc & stack pointer. We can't test their absolute values,
# but they should be valid. Uses get_GPRs() from the lldbutil
# module.
gpr_reg_set = lldbutil.get_GPRs(frame)
pc_value = gpr_reg_set.GetChildMemberWithName("pc")
self.assertTrue(pc_value, "We should have a valid PC.")
pc_value_int = int(pc_value.GetValue(), 0)
# Make sure on arm targets we dont mismatch PC value on the basis of thumb bit.
# Frame PC will not have thumb bit set in case of a thumb
# instruction as PC.
if self.getArchitecture() in ['arm']:
pc_value_int &= ~1
self.assertTrue(
pc_value_int == frame.GetPC(),
"PC gotten as a value should equal frame's GetPC")
sp_value = gpr_reg_set.GetChildMemberWithName("sp")
self.assertTrue(
sp_value, "We should have a valid Stack Pointer.")
self.assertTrue(int(sp_value.GetValue(), 0) == frame.GetSP(
), "SP gotten as a value should equal frame's GetSP")
print("---", file=session)
process.Continue()
# At this point, the inferior process should have exited.
self.assertTrue(
process.GetState() == lldb.eStateExited,
PROCESS_EXITED)
# Expect to find 'a' on the call stacks two times.
self.assertTrue(callsOfA == 2,
"Expect to find 'a' on the call stacks two times")
# By design, the 'a' call frame has the following arg vals:
# o a((int)val=1, (char)ch='A')
# o a((int)val=3, (char)ch='A')
if self.TraceOn():
print("Full stack traces when stopped on the breakpoint 'c':")
print(session.getvalue())
self.expect(session.getvalue(), "Argugment values displayed correctly",
exe=False,
substrs=["a((int)val=1, (char)ch='A')",
"a((int)val=3, (char)ch='A')"])