[Lldb-commits] [lldb] r234016 - Added a testcase that covers loading a module and

Sean Callanan scallanan at apple.com
Fri Apr 3 08:39:47 PDT 2015


Author: spyffe
Date: Fri Apr  3 10:39:47 2015
New Revision: 234016

URL: http://llvm.org/viewvc/llvm-project?rev=234016&view=rev
Log:
Added a testcase that covers loading a module and
verifying that the types from that module don't
override types from DWARF.  Also added a target setting
to LLDB so we can tell Clang where to look for these
local modules.

<rdar://problem/18805055>

Added:
    lldb/trunk/test/lang/objc/modules-incomplete/
    lldb/trunk/test/lang/objc/modules-incomplete/Makefile
    lldb/trunk/test/lang/objc/modules-incomplete/TestIncompleteModules.py
    lldb/trunk/test/lang/objc/modules-incomplete/main.m
    lldb/trunk/test/lang/objc/modules-incomplete/module.map
    lldb/trunk/test/lang/objc/modules-incomplete/myModule.h
    lldb/trunk/test/lang/objc/modules-incomplete/myModule.m
Modified:
    lldb/trunk/include/lldb/Target/Target.h
    lldb/trunk/source/Expression/ClangModulesDeclVendor.cpp
    lldb/trunk/source/Target/Target.cpp

Modified: lldb/trunk/include/lldb/Target/Target.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Target/Target.h?rev=234016&r1=234015&r2=234016&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Target/Target.h (original)
+++ lldb/trunk/include/lldb/Target/Target.h Fri Apr  3 10:39:47 2015
@@ -124,6 +124,9 @@ public:
     FileSpecList &
     GetDebugFileSearchPaths ();
     
+    FileSpecList &
+    GetClangModuleSearchPaths ();
+    
     bool
     GetEnableSyntheticValue () const;
     
@@ -557,6 +560,9 @@ public:
 
     static FileSpecList
     GetDefaultDebugFileSearchPaths ();
+    
+    static FileSpecList
+    GetDefaultClangModuleSearchPaths ();
 
     static ArchSpec
     GetDefaultArchitecture ();

Modified: lldb/trunk/source/Expression/ClangModulesDeclVendor.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/ClangModulesDeclVendor.cpp?rev=234016&r1=234015&r2=234016&view=diff
==============================================================================
--- lldb/trunk/source/Expression/ClangModulesDeclVendor.cpp (original)
+++ lldb/trunk/source/Expression/ClangModulesDeclVendor.cpp Fri Apr  3 10:39:47 2015
@@ -309,6 +309,18 @@ ClangModulesDeclVendor::Create(Target &t
         compiler_invocation_arguments.push_back(module_cache_argument);
     }
     
+    FileSpecList &module_search_paths = target.GetClangModuleSearchPaths();
+    
+    for (size_t spi = 0, spe = module_search_paths.GetSize(); spi < spe; ++spi)
+    {
+        const FileSpec &search_path = module_search_paths.GetFileSpecAtIndex(spi);
+        
+        std::string search_path_argument = "-I";
+        search_path_argument.append(search_path.GetPath());
+        
+        compiler_invocation_arguments.push_back(search_path_argument);
+    }
+    
     {
         FileSpec clang_resource_dir = GetResourceDir();
         

Modified: lldb/trunk/source/Target/Target.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Target/Target.cpp?rev=234016&r1=234015&r2=234016&view=diff
==============================================================================
--- lldb/trunk/source/Target/Target.cpp (original)
+++ lldb/trunk/source/Target/Target.cpp Fri Apr  3 10:39:47 2015
@@ -1921,6 +1921,15 @@ Target::GetDefaultDebugFileSearchPaths (
     return FileSpecList();
 }
 
+FileSpecList
+Target::GetDefaultClangModuleSearchPaths ()
+{
+    TargetPropertiesSP properties_sp(Target::GetGlobalProperties());
+    if (properties_sp)
+        return properties_sp->GetClangModuleSearchPaths();
+    return FileSpecList();
+}
+
 ArchSpec
 Target::GetDefaultArchitecture ()
 {
@@ -2935,6 +2944,7 @@ g_properties[] =
       "Each element of the array is checked in order and the first one that results in a match wins." },
     { "exec-search-paths"                  , OptionValue::eTypeFileSpecList, false, 0                       , NULL, NULL, "Executable search paths to use when locating executable files whose paths don't match the local file system." },
     { "debug-file-search-paths"            , OptionValue::eTypeFileSpecList, false, 0                       , NULL, NULL, "List of directories to be searched when locating debug symbol files." },
+    { "clang-module-search-paths"          , OptionValue::eTypeFileSpecList, false, 0                       , NULL, NULL, "List of directories to be searched when locating modules for Clang." },
     { "max-children-count"                 , OptionValue::eTypeSInt64    , false, 256                       , NULL, NULL, "Maximum number of children to expand in any level of depth." },
     { "max-string-summary-length"          , OptionValue::eTypeSInt64    , false, 1024                      , NULL, NULL, "Maximum number of characters to show when using %s in summary strings." },
     { "max-memory-read-size"               , OptionValue::eTypeSInt64    , false, 1024                      , NULL, NULL, "Maximum number of bytes that 'memory read' will fetch before --force must be specified." },
@@ -2985,6 +2995,7 @@ enum
     ePropertySourceMap,
     ePropertyExecutableSearchPaths,
     ePropertyDebugFileSearchPaths,
+    ePropertyClangModuleSearchPaths,
     ePropertyMaxChildrenCount,
     ePropertyMaxSummaryLength,
     ePropertyMaxMemReadSize,
@@ -3327,6 +3338,15 @@ TargetProperties::GetDebugFileSearchPath
     OptionValueFileSpecList *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList (NULL, false, idx);
     assert(option_value);
     return option_value->GetCurrentValue();
+}
+
+FileSpecList &
+TargetProperties::GetClangModuleSearchPaths ()
+{
+    const uint32_t idx = ePropertyClangModuleSearchPaths;
+    OptionValueFileSpecList *option_value = m_collection_sp->GetPropertyAtIndexAsOptionValueFileSpecList (NULL, false, idx);
+    assert(option_value);
+    return option_value->GetCurrentValue();
 }
 
 bool

Added: lldb/trunk/test/lang/objc/modules-incomplete/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/Makefile?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/Makefile (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/Makefile Fri Apr  3 10:39:47 2015
@@ -0,0 +1,8 @@
+LEVEL = ../../../make
+
+OBJC_SOURCES := main.m myModule.m
+
+include $(LEVEL)/Makefile.rules
+
+CFLAGS += -fmodules -I$(PWD)
+LDFLAGS += -framework Foundation

Added: lldb/trunk/test/lang/objc/modules-incomplete/TestIncompleteModules.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/TestIncompleteModules.py?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/TestIncompleteModules.py (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/TestIncompleteModules.py Fri Apr  3 10:39:47 2015
@@ -0,0 +1,80 @@
+"""Test that DWARF types are trusted over module types"""
+
+import os, time
+import unittest2
+import lldb
+import platform
+import lldbutil
+
+from distutils.version import StrictVersion
+
+from lldbtest import *
+
+class IncompleteModulesTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessDarwin
+    @dsym_test
+    def test_expr_with_dsym(self):
+        self.buildDsym()
+        self.expr()
+
+    @dwarf_test
+    @skipIfFreeBSD
+    @skipIfLinux
+    def test_expr_with_dwarf(self):
+        self.buildDwarf()
+        self.expr()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break inside main().
+        self.line = line_number('main.m', '// Set breakpoint 0 here.')
+
+    def applies(self):
+        if platform.system() != "Darwin":
+            return False
+        if StrictVersion('12.0.0') > platform.release():
+            return False
+
+        return True
+
+    def common_setup(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        # Break inside the foo function which takes a bar_ptr argument.
+        lldbutil.run_break_set_by_file_and_line (self, "main.m", 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'])
+
+        # The breakpoint should have a hit count of 1.
+        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
+            substrs = [' resolved, hit count = 1'])
+
+    def expr(self):
+        if not self.applies():
+            return
+
+        self.common_setup()
+
+        self.runCmd("settings set target.clang-module-search-paths \"" + os.getcwd() + "\"")
+
+        self.expect("expr @import myModule; 3", VARIABLES_DISPLAYED_CORRECTLY,
+            substrs = ["int", "3"])
+
+        self.expect("expr [myObject privateMethod]", VARIABLES_DISPLAYED_CORRECTLY,
+            substrs = ["int", "5"])
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()

Added: lldb/trunk/test/lang/objc/modules-incomplete/main.m
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/main.m?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/main.m (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/main.m Fri Apr  3 10:39:47 2015
@@ -0,0 +1,11 @@
+ at import Foundation;
+ at import myModule;
+
+int main()
+{
+    @autoreleasepool
+    {
+        MyClass *myObject = [MyClass alloc];
+        [myObject publicMethod]; // Set breakpoint 0 here.
+    }
+}

Added: lldb/trunk/test/lang/objc/modules-incomplete/module.map
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/module.map?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/module.map (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/module.map Fri Apr  3 10:39:47 2015
@@ -0,0 +1,4 @@
+module myModule {
+  header "myModule.h"
+  export *
+}

Added: lldb/trunk/test/lang/objc/modules-incomplete/myModule.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/myModule.h?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/myModule.h (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/myModule.h Fri Apr  3 10:39:47 2015
@@ -0,0 +1,6 @@
+ at import Foundation;
+
+ at interface MyClass : NSObject {
+};
+-(void)publicMethod;
+ at end

Added: lldb/trunk/test/lang/objc/modules-incomplete/myModule.m
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/lang/objc/modules-incomplete/myModule.m?rev=234016&view=auto
==============================================================================
--- lldb/trunk/test/lang/objc/modules-incomplete/myModule.m (added)
+++ lldb/trunk/test/lang/objc/modules-incomplete/myModule.m Fri Apr  3 10:39:47 2015
@@ -0,0 +1,14 @@
+#include "myModule.h"
+#include "stdio.h"
+
+ at implementation MyClass {
+};
+-(void)publicMethod {
+  printf("Hello public!\n");
+}
+-(int)privateMethod {
+  printf("Hello private!\n");
+  return 3;
+}
+ at end
+





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