vendor/lldb/lldb-trunk-r256945

3 files changed, 178 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/lang/cpp/class_static/Makefile b/packages/Python/lldbsuite/test/lang/cpp/class_static/Makefile
new file mode 100644
index 000000000000..314f1cb2f077
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/class_static/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/lang/cpp/class_static/TestStaticVariables.py b/packages/Python/lldbsuite/test/lang/cpp/class_static/TestStaticVariables.py
new file mode 100644
index 000000000000..d47d1b7dde41
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/class_static/TestStaticVariables.py
@@ -0,0 +1,120 @@
+"""
+Test display and Python APIs on file and class static variables.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class StaticVariableTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break at.
+        self.line = line_number('main.cpp', '// Set break point at this line.')
+
+    @expectedFailureWindows("llvm.org/pr24764")
+    def test_with_run_command(self):
+        """Test that file and class static variables display correctly."""
+        self.build()
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
+
+        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'])
+
+        # global variables are no longer displayed with the "frame variable" command. 
+        self.expect('target variable A::g_points', VARIABLES_DISPLAYED_CORRECTLY,
+            patterns=['\(PointType \[[1-9]*\]\) A::g_points = {.*}'])
+        self.expect('target variable g_points', VARIABLES_DISPLAYED_CORRECTLY,
+            substrs = ['(PointType [2]) g_points'])
+
+        # On Mac OS X, gcc 4.2 emits the wrong debug info for A::g_points.
+        # A::g_points is an array of two elements.
+        if self.platformIsDarwin() or self.getPlatform() == "linux":
+            self.expect("target variable A::g_points[1].x", VARIABLES_DISPLAYED_CORRECTLY,
+                startstr = "(int) A::g_points[1].x = 11")
+
+    @expectedFailureDarwin(9980907)
+    @expectedFailureClang('Clang emits incomplete debug info.')
+    @expectedFailureFreeBSD('llvm.org/pr20550 failing on FreeBSD-11')
+    @expectedFailureGcc('GCC emits incomplete debug info.')
+    @add_test_categories(['pyapi'])
+    def test_with_python_api(self):
+        """Test Python APIs on file and class static variables."""
+        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.line)
+        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())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # The stop reason of the thread should be breakpoint.
+        thread = process.GetThreadAtIndex(0)
+        if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
+            from lldbsuite.test.lldbutil import stop_reason_to_str
+            self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
+                      stop_reason_to_str(thread.GetStopReason()))
+
+        # Get the SBValue of 'A::g_points' and 'g_points'.
+        frame = thread.GetFrameAtIndex(0)
+
+        # arguments =>     False
+        # locals =>        False
+        # statics =>       True
+        # in_scope_only => False
+        valList = frame.GetVariables(False, False, True, False)
+
+        for val in valList:
+            self.DebugSBValue(val)
+            name = val.GetName()
+            self.assertTrue(name in ['g_points', 'A::g_points'])
+            if name == 'g_points':
+                self.assertTrue(val.GetValueType() == lldb.eValueTypeVariableStatic)
+                self.assertTrue(val.GetNumChildren() == 2)
+            elif name == 'A::g_points':
+                self.assertTrue(val.GetValueType() == lldb.eValueTypeVariableGlobal)
+                self.assertTrue(val.GetNumChildren() == 2)
+                child1 = val.GetChildAtIndex(1)
+                self.DebugSBValue(child1)
+                child1_x = child1.GetChildAtIndex(0)
+                self.DebugSBValue(child1_x)
+                self.assertTrue(child1_x.GetTypeName() == 'int' and
+                                child1_x.GetValue() == '11')
+
+        # SBFrame.FindValue() should also work.
+        val = frame.FindValue("A::g_points", lldb.eValueTypeVariableGlobal)
+        self.DebugSBValue(val)
+        self.assertTrue(val.GetName() == 'A::g_points')
+
+        # Also exercise the "parameter" and "local" scopes while we are at it.
+        val = frame.FindValue("argc", lldb.eValueTypeVariableArgument)
+        self.DebugSBValue(val)
+        self.assertTrue(val.GetName() == 'argc')
+
+        val = frame.FindValue("argv", lldb.eValueTypeVariableArgument)
+        self.DebugSBValue(val)
+        self.assertTrue(val.GetName() == 'argv')
+
+        val = frame.FindValue("hello_world", lldb.eValueTypeVariableLocal)
+        self.DebugSBValue(val)
+        self.assertTrue(val.GetName() == 'hello_world')
diff --git a/packages/Python/lldbsuite/test/lang/cpp/class_static/main.cpp b/packages/Python/lldbsuite/test/lang/cpp/class_static/main.cpp
new file mode 100644
index 000000000000..2068eadcac5f
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/class_static/main.cpp
@@ -0,0 +1,53 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// I made this example after noting that I was unable to display an unsized
+// static class array. It turns out that gcc 4.2 will emit DWARF that correctly
+// describes the PointType, but it will incorrectly emit debug info for the
+// "g_points" array where the following things are wrong:
+//  - the DW_TAG_array_type won't have a subrange info
+//  - the DW_TAG_variable for "g_points" won't have a valid byte size, so even
+//    though we know the size of PointType, we can't infer the actual size
+//    of the array by dividing the size of the variable by the number of
+//    elements.
+
+#include <stdio.h>
+
+typedef struct PointType
+{
+    int x, y;
+} PointType;
+
+class A
+{
+public:
+    static PointType g_points[];
+};
+
+PointType A::g_points[] = 
+{
+    {    1,    2 },
+    {   11,   22 }
+};
+
+static PointType g_points[] = 
+{
+    {    3,    4 },
+    {   33,   44 }
+};
+
+int
+main (int argc, char const *argv[])
+{
+    const char *hello_world = "Hello, world!";
+    printf ("A::g_points[1].x = %i\n", A::g_points[1].x); // Set break point at this line.
+    printf ("::g_points[1].x = %i\n", g_points[1].x);
+    printf ("%s\n", hello_world);
+    return 0;
+}