[Lldb-commits] [lldb] r137500 - in /lldb/trunk/test: functionalities/inferior-changed/ functionalities/inferior-changed/Makefile functionalities/inferior-changed/TestInferiorChanged.py functionalities/inferior-changed/main.c functionalities/inferior-changed/main2.c lldbtest.py
Johnny Chen
johnny.chen at apple.com
Fri Aug 12 13:19:22 PDT 2011
Author: johnny
Date: Fri Aug 12 15:19:22 2011
New Revision: 137500
URL: http://llvm.org/viewvc/llvm-project?rev=137500&view=rev
Log:
Add TestInferiorChanged.py to test that lldb reloads the inferior after it was changed during the debug session.
First, main.c causes a crash, the inferior then gets re-built with main2.c which is not crashing.
Add Base.cleanup(self, dictionary=None) for platform specfic way to do cleanup after build.
This plugin method is used by the above test case to cleanup the main.c build before rebuild for main2.c.
Added:
lldb/trunk/test/functionalities/inferior-changed/
lldb/trunk/test/functionalities/inferior-changed/Makefile
lldb/trunk/test/functionalities/inferior-changed/TestInferiorChanged.py
lldb/trunk/test/functionalities/inferior-changed/main.c
lldb/trunk/test/functionalities/inferior-changed/main2.c
Modified:
lldb/trunk/test/lldbtest.py
Added: lldb/trunk/test/functionalities/inferior-changed/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/functionalities/inferior-changed/Makefile?rev=137500&view=auto
==============================================================================
--- lldb/trunk/test/functionalities/inferior-changed/Makefile (added)
+++ lldb/trunk/test/functionalities/inferior-changed/Makefile Fri Aug 12 15:19:22 2011
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
Added: lldb/trunk/test/functionalities/inferior-changed/TestInferiorChanged.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/functionalities/inferior-changed/TestInferiorChanged.py?rev=137500&view=auto
==============================================================================
--- lldb/trunk/test/functionalities/inferior-changed/TestInferiorChanged.py (added)
+++ lldb/trunk/test/functionalities/inferior-changed/TestInferiorChanged.py Fri Aug 12 15:19:22 2011
@@ -0,0 +1,90 @@
+"""Test lldb reloads the inferior after it was changed during the session."""
+
+import os, time
+import unittest2
+import lldb
+from lldbtest import *
+
+class ChangedInferiorTestCase(TestBase):
+
+ mydir = os.path.join("functionalities", "inferior-changed")
+
+ @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+ def test_inferior_crashing_dsym(self):
+ """Test lldb reloads the inferior after it was changed during the session."""
+ self.buildDsym()
+ self.inferior_crashing()
+ self.cleanup()
+ d = {'C_SOURCES': 'main2.c'}
+ self.buildDsym(dictionary=d)
+ self.setTearDownCleanup(dictionary=d)
+ self.inferior_not_crashing()
+
+ def test_inferior_crashing_dwarf(self):
+ """Test lldb reloads the inferior after it was changed during the session."""
+ self.buildDwarf()
+ self.inferior_crashing()
+ self.cleanup()
+ d = {'C_SOURCES': 'main2.c'}
+ self.buildDwarf(dictionary=d)
+ self.setTearDownCleanup(dictionary=d)
+ self.inferior_not_crashing()
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+ # Find the line number of the crash.
+ self.line1 = line_number('main.c', '// Crash here.')
+ self.line2 = line_number('main2.c', '// Not crash here.')
+
+ def inferior_crashing(self):
+ """Inferior crashes upon launching; lldb should catch the event and stop."""
+ exe = os.path.join(os.getcwd(), "a.out")
+ self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+ self.runCmd("run", RUN_SUCCEEDED)
+
+ # The stop reason of the thread should be a bad access exception.
+ self.expect("thread list", STOPPED_DUE_TO_EXC_BAD_ACCESS,
+ substrs = ['stopped',
+ 'stop reason = EXC_BAD_ACCESS'])
+
+ # And it should report the correct line number.
+ self.expect("thread backtrace all",
+ substrs = ['stop reason = EXC_BAD_ACCESS',
+ 'main.c:%d' % self.line1])
+
+ def inferior_not_crashing(self):
+ """Test lldb reloads the inferior after it was changed during the session."""
+ self.runCmd("process kill")
+ self.runCmd("run", RUN_SUCCEEDED)
+ self.runCmd("process status")
+
+ if 'EXC_BAD_ACCESS' in self.res.GetOutput():
+ self.fail("Inferior changed, but lldb did not perform a reload")
+
+ # Break inside the main.
+ self.expect("breakpoint set -f main2.c -l %d" % self.line2,
+ BREAKPOINT_CREATED,
+ startstr = "Breakpoint created: 1: file ='main2.c', line = %d, locations = 1" %
+ self.line2)
+
+ self.runCmd("run", RUN_SUCCEEDED)
+
+ # The stop reason of the thread should be breakpoint.
+ self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+ substrs = ['stopped',
+ 'stop reason = breakpoint'])
+
+ self.runCmd("frame variable int_ptr")
+ self.expect("frame variable *int_ptr",
+ substrs = ['= 7'])
+ self.expect("expression *int_ptr",
+ substrs = ['= 7'])
+
+
+if __name__ == '__main__':
+ import atexit
+ lldb.SBDebugger.Initialize()
+ atexit.register(lambda: lldb.SBDebugger.Terminate())
+ unittest2.main()
Added: lldb/trunk/test/functionalities/inferior-changed/main.c
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/functionalities/inferior-changed/main.c?rev=137500&view=auto
==============================================================================
--- lldb/trunk/test/functionalities/inferior-changed/main.c (added)
+++ lldb/trunk/test/functionalities/inferior-changed/main.c Fri Aug 12 15:19:22 2011
@@ -0,0 +1,16 @@
+//===-- 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>
+
+int main(int argc, const char* argv[])
+{
+ int *null_ptr = 0;
+ printf("Hello, segfault!\n");
+ printf("Now crash %d\n", *null_ptr); // Crash here.
+}
Added: lldb/trunk/test/functionalities/inferior-changed/main2.c
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/functionalities/inferior-changed/main2.c?rev=137500&view=auto
==============================================================================
--- lldb/trunk/test/functionalities/inferior-changed/main2.c (added)
+++ lldb/trunk/test/functionalities/inferior-changed/main2.c Fri Aug 12 15:19:22 2011
@@ -0,0 +1,18 @@
+//===-- main2.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>
+#include <stdlib.h>
+
+int main(int argc, const char* argv[])
+{
+ int *int_ptr = (int *)malloc(sizeof(int));
+ *int_ptr = 7;
+ printf("Hello, world!\n");
+ printf("Now not crash %d\n", *int_ptr); // Not crash here.
+}
Modified: lldb/trunk/test/lldbtest.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lldbtest.py?rev=137500&r1=137499&r2=137500&view=diff
==============================================================================
--- lldb/trunk/test/lldbtest.py (original)
+++ lldb/trunk/test/lldbtest.py Fri Aug 12 15:19:22 2011
@@ -770,6 +770,12 @@
if not module.buildDwarf(self, architecture, compiler, dictionary):
raise Exception("Don't know how to build binary with dwarf")
+ def cleanup(self, dictionary=None):
+ """Platform specific way to do cleanup after build."""
+ module = builder_module()
+ if not module.cleanup(self, dictionary):
+ raise Exception("Don't know how to do cleanup")
+
class TestBase(Base):
"""
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