forked from OSchip/llvm-project
Add test cases for setting condition on a watchpoint for both command and API.
llvm-svn: 142291
This commit is contained in:
Johnny Chen
parent
70b8d76e64
commit
9df05592f0
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@ -0,0 +1,5 @@
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LEVEL = ../../../../make
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CXX_SOURCES := main.cpp
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include $(LEVEL)/Makefile.rules
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@ -1,91 +0,0 @@
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"""
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Test watchpoint modify command to set condition on a watchpoint.
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"""
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import os, time
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import unittest2
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import lldb
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from lldbtest import *
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class WatchpointCmdConditionTestCase(TestBase):
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mydir = os.path.join("functionalities", "watchpoint", "watchpoint_commands", "condition")
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Our simple source filename.
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self.source = 'main.cpp'
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# Find the line number to break inside main().
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self.line = line_number(self.source, '// Set break point at this line.')
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# And the watchpoint variable declaration line number.
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self.decl = line_number(self.source, '// Watchpoint variable declaration.')
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# Build dictionary to have unique executable names for each test method.
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self.exe_name = self.testMethodName
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self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_watchpoint_cond_with_dsym(self):
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"""Test watchpoint condition."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_condition()
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def test_watchpoint_cond_with_dwarf(self):
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"""Test watchpoint condition."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_condition()
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def watchpoint_condition(self):
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"""Do watchpoint condition 'global==5'."""
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exe = os.path.join(os.getcwd(), self.exe_name)
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Add a breakpoint to set a watchpoint when stopped on the breakpoint.
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self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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(self.source, self.line))
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# We should be stopped again due to the breakpoint.
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# Now let's set a write-type watchpoint for 'global'.
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# With a condition of 'global==5'.
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self.expect("frame variable -w write -g -L global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = w',
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'%s:%d' % (self.source, self.decl)])
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self.runCmd("watchpoint modify -c 'global==5'")
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should be 0 initially.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 0', 'global==5'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs = ['stop reason = watchpoint'])
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self.expect("frame variable -g global",
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substrs = ['(int32_t)', 'global = 5'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should now be 2.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 5'])
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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@ -0,0 +1,28 @@
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//===-- main.c --------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <stdint.h>
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int32_t global = 0; // Watchpoint variable declaration.
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static void modify(int32_t &var) {
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++var;
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}
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int main(int argc, char** argv) {
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int local = 0;
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printf("&global=%p\n", &global);
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printf("about to write to 'global'...\n"); // Set break point at this line.
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// When stopped, watch 'global',
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// for the condition "global == 5".
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for (int i = 0; i < 10; ++i)
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modify(global);
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printf("global=%d\n", global);
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}
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@ -18,3 +18,5 @@ def fuzz_obj(obj):
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obj.GetIgnoreCount()
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obj.SetIgnoreCount(5)
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obj.GetDescription(lldb.SBStream(), lldb.eDescriptionLevelVerbose)
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obj.SetCondition("shouldWeStop()")
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obj.GetCondition()
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@ -0,0 +1,5 @@
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LEVEL = ../../../make
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CXX_SOURCES := main.cpp
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include $(LEVEL)/Makefile.rules
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@ -0,0 +1,101 @@
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"""
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Test watchpoint condition API.
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"""
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import os, time
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import unittest2
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import lldb
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import lldbutil
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from lldbtest import *
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class WatchpointConditionAPITestCase(TestBase):
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mydir = os.path.join("python_api", "watchpoint", "condition")
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Our simple source filename.
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self.source = 'main.cpp'
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# Find the line number to break inside main().
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self.line = line_number(self.source, '// Set break point at this line.')
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# And the watchpoint variable declaration line number.
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self.decl = line_number(self.source, '// Watchpoint variable declaration.')
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# Build dictionary to have unique executable names for each test method.
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self.exe_name = self.testMethodName
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self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_watchpoint_cond_api_with_dsym(self):
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"""Test watchpoint condition API."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_condition_api()
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def test_watchpoint_cond_api_with_dwarf(self):
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"""Test watchpoint condition API."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_condition_api()
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def watchpoint_condition_api(self):
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"""Do watchpoint condition API to set condition as 'global==5'."""
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exe = os.path.join(os.getcwd(), self.exe_name)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Now create a breakpoint on main.c.
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(None, None, os.getcwd())
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# We should be stopped due to the breakpoint. Get frame #0.
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process = target.GetProcess()
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self.assertTrue(process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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frame0 = thread.GetFrameAtIndex(0)
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# Watch 'global' for write.
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value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
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watchpoint = value.Watch(True, False, True)
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self.assertTrue(value and watchpoint,
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"Successfully found the variable and set a watchpoint")
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self.DebugSBValue(value)
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# Now set the condition as "global==5".
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watchpoint.SetCondition('global==5')
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self.expect(watchpoint.GetCondition(), exe=False,
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startstr = 'global==5')
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# Hide stdout if not running with '-t' option.
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if not self.TraceOn():
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self.HideStdout()
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print watchpoint
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# Continue. Expect the program to stop due to the variable being written to.
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process.Continue()
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if (self.TraceOn()):
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lldbutil.print_stacktraces(process)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonWatchpoint)
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self.assertTrue(thread, "The thread stopped due to watchpoint")
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self.DebugSBValue(value)
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# Verify that the condition is met.
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self.assertTrue(value.GetValueAsUnsigned() == 5)
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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@ -0,0 +1,28 @@
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//===-- main.c --------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <stdint.h>
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int32_t global = 0; // Watchpoint variable declaration.
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static void modify(int32_t &var) {
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++var;
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}
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int main(int argc, char** argv) {
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int local = 0;
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printf("&global=%p\n", &global);
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printf("about to write to 'global'...\n"); // Set break point at this line.
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// When stopped, watch 'global',
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// for the condition "global == 5".
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for (int i = 0; i < 10; ++i)
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modify(global);
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printf("global=%d\n", global);
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}
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