[LLDB][SBSaveCore] Fix bug where default values are not propagated.

lldb/include/lldb/Core/PluginManager.h

@@ -194,7 +194,7 @@ class PluginManager {
   GetObjectFileCreateMemoryCallbackForPluginName(llvm::StringRef name);
 
   static Status SaveCore(const lldb::ProcessSP &process_sp,
-                         const lldb_private::SaveCoreOptions &core_options);
+                         lldb_private::SaveCoreOptions &core_options);
 
   // ObjectContainer
   static bool RegisterPlugin(

lldb/include/lldb/lldb-private-interfaces.h

@@ -57,7 +57,7 @@ typedef ObjectFile *(*ObjectFileCreateMemoryInstance)(
     const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp,
     const lldb::ProcessSP &process_sp, lldb::addr_t offset);
 typedef bool (*ObjectFileSaveCore)(const lldb::ProcessSP &process_sp,
-                                   const lldb_private::SaveCoreOptions &options,
+                                   lldb_private::SaveCoreOptions &options,
                                    Status &error);
 typedef EmulateInstruction *(*EmulateInstructionCreateInstance)(
     const ArchSpec &arch, InstructionType inst_type);

lldb/source/Core/PluginManager.cpp

@@ -702,7 +702,7 @@ PluginManager::GetObjectFileCreateMemoryCallbackForPluginName(
 }
 
 Status PluginManager::SaveCore(const lldb::ProcessSP &process_sp,
-                               const lldb_private::SaveCoreOptions &options) {
+                               lldb_private::SaveCoreOptions &options) {
   Status error;
   if (!options.GetOutputFile()) {
     error.SetErrorString("No output file specified");

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp

@@ -6351,7 +6351,7 @@ static offset_t
 CreateAllImageInfosPayload(const lldb::ProcessSP &process_sp,
                            offset_t initial_file_offset,
                            StreamString &all_image_infos_payload,
-                           const lldb_private::SaveCoreOptions &options) {
+                           lldb_private::SaveCoreOptions &options) {
   Target &target = process_sp->GetTarget();
   ModuleList modules = target.GetImages();
 
@@ -6522,16 +6522,17 @@ struct page_object {
 };
 
 bool ObjectFileMachO::SaveCore(const lldb::ProcessSP &process_sp,
-                               const lldb_private::SaveCoreOptions &options,
+                               lldb_private::SaveCoreOptions &options,
                                Status &error) {
-  auto core_style = options.GetStyle();
-  if (core_style == SaveCoreStyle::eSaveCoreUnspecified)
-    core_style = SaveCoreStyle::eSaveCoreDirtyOnly;
   // The FileSpec and Process are already checked in PluginManager::SaveCore.
   assert(options.GetOutputFile().has_value());
   assert(process_sp);
   const FileSpec outfile = options.GetOutputFile().value();
 
+  // MachO defaults to dirty pages
+  if (options.GetStyle() == SaveCoreStyle::eSaveCoreUnspecified)
+    options.SetStyle(eSaveCoreDirtyOnly);
+
   Target &target = process_sp->GetTarget();
   const ArchSpec target_arch = target.GetArchitecture();
   const llvm::Triple &target_triple = target_arch.GetTriple();

lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h

@@ -62,7 +62,7 @@ class ObjectFileMachO : public lldb_private::ObjectFile {
                                         lldb_private::ModuleSpecList &specs);
 
   static bool SaveCore(const lldb::ProcessSP &process_sp,
-                       const lldb_private::SaveCoreOptions &options,
+                       lldb_private::SaveCoreOptions &options,
                        lldb_private::Status &error);
 
   static bool MagicBytesMatch(lldb::DataBufferSP data_sp, lldb::addr_t offset,

lldb/source/Plugins/ObjectFile/Minidump/MinidumpFileBuilder.h

@@ -76,7 +76,7 @@ class MinidumpFileBuilder {
 public:
   MinidumpFileBuilder(lldb::FileUP &&core_file,
                       const lldb::ProcessSP &process_sp,
-                      const lldb_private::SaveCoreOptions &save_core_options)
+                      lldb_private::SaveCoreOptions &save_core_options)
       : m_process_sp(process_sp), m_core_file(std::move(core_file)),
         m_save_core_options(save_core_options){};
 

lldb/source/Plugins/ObjectFile/Minidump/ObjectFileMinidump.cpp

@@ -56,16 +56,15 @@ size_t ObjectFileMinidump::GetModuleSpecifications(
 }
 
 bool ObjectFileMinidump::SaveCore(const lldb::ProcessSP &process_sp,
-                                  const lldb_private::SaveCoreOptions &options,
+                                  lldb_private::SaveCoreOptions &options,
                                   lldb_private::Status &error) {
   // Output file and process_sp are both checked in PluginManager::SaveCore.
   assert(options.GetOutputFile().has_value());
   assert(process_sp);
 
   // Minidump defaults to stacks only.
-  SaveCoreStyle core_style = options.GetStyle();
-  if (core_style == SaveCoreStyle::eSaveCoreUnspecified)
-    core_style = SaveCoreStyle::eSaveCoreStackOnly;
+  if (options.GetStyle() == SaveCoreStyle::eSaveCoreUnspecified)
+    options.SetStyle(SaveCoreStyle::eSaveCoreStackOnly);
 
   llvm::Expected<lldb::FileUP> maybe_core_file = FileSystem::Instance().Open(
       options.GetOutputFile().value(),

lldb/source/Plugins/ObjectFile/Minidump/ObjectFileMinidump.h

@@ -55,7 +55,7 @@ class ObjectFileMinidump : public lldb_private::PluginInterface {
 
   // Saves dump in Minidump file format
   static bool SaveCore(const lldb::ProcessSP &process_sp,
-                       const lldb_private::SaveCoreOptions &options,
+                       lldb_private::SaveCoreOptions &options,
                        lldb_private::Status &error);
 
 private:

lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp

@@ -355,7 +355,7 @@ size_t ObjectFilePECOFF::GetModuleSpecifications(
 }
 
 bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp,
-                                const lldb_private::SaveCoreOptions &options,
+                                lldb_private::SaveCoreOptions &options,
                                 lldb_private::Status &error) {
   // Outfile and process_sp are validated by PluginManager::SaveCore
   assert(options.GetOutputFile().has_value());

lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h

@@ -82,7 +82,7 @@ class ObjectFilePECOFF : public lldb_private::ObjectFile {
                                         lldb_private::ModuleSpecList &specs);
 
   static bool SaveCore(const lldb::ProcessSP &process_sp,
-                       const lldb_private::SaveCoreOptions &options,
+                       lldb_private::SaveCoreOptions &options,
                        lldb_private::Status &error);
 
   static bool MagicBytesMatch(lldb::DataBufferSP data_sp);

lldb/source/Plugins/ObjectFile/PECOFF/WindowsMiniDump.cpp

@@ -21,8 +21,7 @@
 namespace lldb_private {
 
 bool SaveMiniDump(const lldb::ProcessSP &process_sp,
-                  const SaveCoreOptions &core_options,
-                  lldb_private::Status &error) {
+                  SaveCoreOptions &core_options, lldb_private::Status &error) {
   if (!process_sp)
     return false;
 #ifdef _WIN32

lldb/source/Plugins/ObjectFile/PECOFF/WindowsMiniDump.h

@@ -14,8 +14,7 @@
 namespace lldb_private {
 
 bool SaveMiniDump(const lldb::ProcessSP &process_sp,
-                  const SaveCoreOptions &core_options,
-                  lldb_private::Status &error);
+                  SaveCoreOptions &core_options, lldb_private::Status &error);
 
 } // namespace lldb_private
 

lldb/test/API/functionalities/process_save_core/TestProcessSaveCore.py

@@ -10,6 +10,11 @@
 
 
 class ProcessSaveCoreTestCase(TestBase):
+    def validate_core_pid(self, pid, core_path):
+        target = self.dbg.CreateTarget(None)
+        process = target.LoadCore(core_path)
+        return process.GetProcessID() == pid
+
     @skipIfRemote
     @skipUnlessWindows
     def test_cannot_save_core_unless_process_stopped(self):
@@ -88,3 +93,24 @@ def test_save_core_via_process_plugin(self):
                 os.unlink(core)
             except OSError:
                 pass
+
+    @skipUnlessPlatform(["linux"])
+    def test_save_core_default_values_for_style_minidump(self):
+        """Test we can still save a core for minidump when no
+        core style is specified."""
+        self.build()
+        exe = self.getBuildArtifact("a.out")
+        core = self.getBuildArtifact("core.dmp")
+        target = self.dbg.CreateTarget(exe)
+        target.BreakpointCreateByName("bar")
+        process = target.LaunchSimple(None, None, self.get_process_working_directory())
+        self.assertState(process.GetState(), lldb.eStateStopped)
+        pid = process.GetProcessID()
+        options = lldb.SBSaveCoreOptions()
+        minidump_path = core + ".minidump"
+        options.SetOutputFile(lldb.SBFileSpec(minidump_path))
+        options.SetPluginName("minidump")
+        error = process.SaveCore(options)
+        self.assertSuccess(error, error.GetCString())
+        self.assertTrue(os.path.isfile(minidump_path))
+        self.assertTrue(self.validate_core_pid(pid, minidump_path))