def iter_registers(self):
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, os.getcwd())
if not process:
self.fail("SBTarget.LaunchProcess() failed")
import 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)
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())
# And these should also work.
for kind in ["General Purpose Registers",
"Floating Point Registers",
"Exception State Registers"]:
REGs = lldbutil.get_registers(frame, kind)
self.assertTrue(REGs)
# We've finished dumping the registers for frame #0.
break
def do_get_arg_vals(self):
"""Get argument vals for the call stack when stopped on a breakpoint."""
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, os.getcwd())
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
import StringIO
session = StringIO.StringIO()
while process.GetState() == lldb.eStateStopped:
thread = process.GetThreadAtIndex(0)
# 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 >> session, "%s(%s)" % (name, ", ".join(argList))
# 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.")
self.assertTrue (int(pc_value.GetValue(), 0) == 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 >> 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 do_get_arg_vals(self):
"""Get argument vals for the call stack when stopped on a breakpoint."""
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
import StringIO
session = StringIO.StringIO()
while process.GetState() == lldb.eStateStopped:
thread = process.GetThreadAtIndex(0)
# 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 >> session, "%s(%s)" % (name, ", ".join(argList))
# 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_str = pc_value.GetValue()
self.assertTrue(pc_value_str,
"We should have a valid PC string.")
self.assertTrue(
int(pc_value_str, 0) == 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 >> 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')"
])
# print main_bp
# Launch the process. Since we specified synchronous mode, we won't return
# from this function until we hit the breakpoint at main
process = target.LaunchSimple(None, None, os.getcwd())
# process = target.Attach (attach_info, error)
# Make sure the launch went ok
if process:
# Print some simple process info
state = process.GetState()
print "Process info %s" % process
for thread in process:
ID = thread.GetThreadID()
print "thread id: %d" % ID
frames = thread.frames
for frame in frames:
print frame
registers = lldbutil.get_GPRs(frame)
for reg in registers:
print "%s => %s" % (reg.GetName(), reg.GetValue())
# if thread.GetStopReason() == lldb.eStopReasonBreakpoint:
# stopped_due_to_breakpoint = True
# for frame in thread:
# self.assertTrue(frame.GetThread().GetThreadID() == ID)
# if self.TraceOn():
# print frame
