diff options
| -rw-r--r-- | lldb/test/lldbtest.py | 6 | ||||
| -rw-r--r-- | lldb/test/python_api/frame/Makefile | 5 | ||||
| -rw-r--r-- | lldb/test/python_api/frame/TestFrames.py | 118 | ||||
| -rw-r--r-- | lldb/test/python_api/frame/main.c | 58 |
4 files changed, 185 insertions, 2 deletions
diff --git a/lldb/test/lldbtest.py b/lldb/test/lldbtest.py index 764b6ca78aa..72bdfe9d8e2 100644 --- a/lldb/test/lldbtest.py +++ b/lldb/test/lldbtest.py @@ -133,6 +133,10 @@ PROCESS_IS_VALID = "Process is valid" PROCESS_KILLED = "Process is killed successfully" +PROCESS_EXITED = "Process exited successfully" + +PROCESS_STOPPED = "Process status should be stopped" + RUN_SUCCEEDED = "Process is launched successfully" RUN_COMPLETED = "Process exited successfully" @@ -155,8 +159,6 @@ SOURCE_DISPLAYED_CORRECTLY = "Source code displayed correctly" STEP_OUT_SUCCEEDED = "Thread step-out succeeded" -PROCESS_STOPPED = "Process status should be stopped" - STOPPED_DUE_TO_BREAKPOINT = "Process should be stopped due to breakpoint" STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS = "%s, %s" % ( diff --git a/lldb/test/python_api/frame/Makefile b/lldb/test/python_api/frame/Makefile new file mode 100644 index 00000000000..0d70f259501 --- /dev/null +++ b/lldb/test/python_api/frame/Makefile @@ -0,0 +1,5 @@ +LEVEL = ../../make + +C_SOURCES := main.c + +include $(LEVEL)/Makefile.rules diff --git a/lldb/test/python_api/frame/TestFrames.py b/lldb/test/python_api/frame/TestFrames.py new file mode 100644 index 00000000000..f8b80e629d9 --- /dev/null +++ b/lldb/test/python_api/frame/TestFrames.py @@ -0,0 +1,118 @@ +""" +Use lldb Python SBFrame API to get the argument values of the call stacks. +""" + +import os, time +import re +import unittest2 +import lldb, lldbutil +from lldbtest import * + +class FrameAPITestCase(TestBase): + + mydir = os.path.join("python_api", "frame") + + @unittest2.expectedFailure + @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") + @python_api_test + def test_get_arg_vals_for_call_stack_with_dsym(self): + """Exercise SBFrame.GetVariables() API to get argument vals.""" + self.buildDsym() + self.do_get_arg_vals() + + @unittest2.expectedFailure + @python_api_test + def test_get_arg_vals_for_call_stack_with_dwarf(self): + """Exercise SBFrame.GetVariables() API to get argument vals.""" + self.buildDwarf() + self.do_get_arg_vals() + + 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.IsValid(), VALID_TARGET) + + # Now create a breakpoint on main.c by name 'c'. + breakpoint = target.BreakpointCreateByName('c', 'a.out') + #print "breakpoint:", breakpoint + self.assertTrue(breakpoint.IsValid() and + breakpoint.GetNumLocations() == 1, + VALID_BREAKPOINT) + + # Now launch the process, and do not stop at the entry point. + # Note that we don't assign the process to self.process as in other test + # cases. We want the inferior to run till it exits and there's no need + # for the testing framework to kill the inferior upon tearDown(). + process = target.LaunchProcess([], [], os.ctermid(), 0, False) + + 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) + print "frame:", frame + #print "frame.FindValue('val', lldb.eValueTypeVariableArgument)", frame.FindValue('val', lldb.eValueTypeVariableArgument).GetValue(frame) + #print "frame.FindValue('ch', lldb.eValueTypeVariableArgument)", frame.FindValue('ch', lldb.eValueTypeVariableArgument).GetValue(frame) + #print "frame.EvaluateExpression('val'):", frame.EvaluateExpression('val').GetValue(frame) + #print "frame.EvaluateExpression('ch'):", frame.EvaluateExpression('ch').GetValue(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 = [] + from lldbutil import lldb_iter + for val in lldb_iter(valList, 'GetSize', 'GetValueAtIndex'): + #self.DebugSBValue(frame, val) + argList.append("(%s)%s=%s" % (val.GetTypeName(), + val.GetName(), + val.GetValue(frame))) + print >> session, "%s(%s)" % (name, ", ".join(argList)) + + 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') + print "Full stack traces when stopped on the breakpoint 'c':" + print session.getvalue() + # rdar://problem/8801262 + # test failure: ./dotest.py -v -w -t -p TestFrames (argument values are wrong) + 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')"]) + + +if __name__ == '__main__': + import atexit + lldb.SBDebugger.Initialize() + atexit.register(lambda: lldb.SBDebugger.Terminate()) + unittest2.main() diff --git a/lldb/test/python_api/frame/main.c b/lldb/test/python_api/frame/main.c new file mode 100644 index 00000000000..749bd615bb9 --- /dev/null +++ b/lldb/test/python_api/frame/main.c @@ -0,0 +1,58 @@ +//===-- main.c --------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +#include <stdio.h> + +// This simple program is to test the lldb Python API related to frames. + +int a(int, char); +int b(int, char); +int c(int, char); + +int a(int val, char ch) +{ + int my_val = val; + char my_ch = ch; + printf("a(val=%d, ch='%c')\n", val, ch); + if (val <= 1) + return b(++val, ++ch); + else if (val >= 3) + return c(++val, ++ch); + + return val; +} + +int b(int val, char ch) +{ + int my_val = val; + char my_ch = ch; + printf("b(val=%d, ch='%c')\n", val, ch); + return c(++val, ++ch); +} + +int c(int val, char ch) +{ + int my_val = val; + char my_ch = ch; + printf("c(val=%d, ch='%c')\n", val, ch); + return val + 3 + ch; +} + +int main (int argc, char const *argv[]) +{ + int A1 = a(1, 'A'); // a(1, 'A') -> b(2, 'B') -> c(3, 'C') + printf("a(1, 'A') returns %d\n", A1); + + int B2 = b(2, 'B'); // b(2, 'B') -> c(3, 'C') + printf("b(2, 'B') returns %d\n", B2); + + int A3 = a(3, 'A'); // a(3, 'A') -> c(4, 'B') + printf("a(3, 'A') returns %d\n", A3); + + return 0; +} |

