diff options
Diffstat (limited to 'source/Core/PluginManager.cpp')
| -rw-r--r-- | source/Core/PluginManager.cpp | 198 |
1 files changed, 175 insertions, 23 deletions
diff --git a/source/Core/PluginManager.cpp b/source/Core/PluginManager.cpp index 813cec2..cda5580 100644 --- a/source/Core/PluginManager.cpp +++ b/source/Core/PluginManager.cpp @@ -20,10 +20,12 @@ #include "lldb/Core/Error.h" #include "lldb/Host/FileSpec.h" #include "lldb/Host/Host.h" +#include "lldb/Host/HostInfo.h" #include "lldb/Host/Mutex.h" #include "lldb/Interpreter/OptionValueProperties.h" #include "llvm/ADT/StringRef.h" +#include "llvm/Support/DynamicLibrary.h" using namespace lldb; using namespace lldb_private; @@ -41,7 +43,12 @@ typedef void (*PluginTermCallback) (void); struct PluginInfo { - void *plugin_handle; + PluginInfo() + : plugin_init_callback(nullptr), plugin_term_callback(nullptr) + { + } + + llvm::sys::DynamicLibrary library; PluginInitCallback plugin_init_callback; PluginTermCallback plugin_term_callback; }; @@ -79,6 +86,12 @@ SetPluginInfo (const FileSpec &plugin_file_spec, const PluginInfo &plugin_info) plugin_map[plugin_file_spec] = plugin_info; } +template <typename FPtrTy> +static FPtrTy +CastToFPtr (void *VPtr) +{ + return reinterpret_cast<FPtrTy>(reinterpret_cast<intptr_t>(VPtr)); +} static FileSpec::EnumerateDirectoryResult LoadPluginCallback @@ -106,16 +119,15 @@ LoadPluginCallback return FileSpec::eEnumerateDirectoryResultNext; else { - PluginInfo plugin_info = { NULL, NULL, NULL }; - uint32_t flags = Host::eDynamicLibraryOpenOptionLazy | - Host::eDynamicLibraryOpenOptionLocal | - Host::eDynamicLibraryOpenOptionLimitGetSymbol; + PluginInfo plugin_info; - plugin_info.plugin_handle = Host::DynamicLibraryOpen (plugin_file_spec, flags, error); - if (plugin_info.plugin_handle) + std::string pluginLoadError; + plugin_info.library = llvm::sys::DynamicLibrary::getPermanentLibrary (plugin_file_spec.GetPath().c_str(), &pluginLoadError); + if (plugin_info.library.isValid()) { bool success = false; - plugin_info.plugin_init_callback = (PluginInitCallback)Host::DynamicLibraryGetSymbol (plugin_info.plugin_handle, "LLDBPluginInitialize", error); + plugin_info.plugin_init_callback = + CastToFPtr<PluginInitCallback>(plugin_info.library.getAddressOfSymbol("LLDBPluginInitialize")); if (plugin_info.plugin_init_callback) { // Call the plug-in "bool LLDBPluginInitialize(void)" function @@ -125,16 +137,15 @@ LoadPluginCallback if (success) { // It is ok for the "LLDBPluginTerminate" symbol to be NULL - plugin_info.plugin_term_callback = (PluginTermCallback)Host::DynamicLibraryGetSymbol (plugin_info.plugin_handle, "LLDBPluginTerminate", error); + plugin_info.plugin_term_callback = + CastToFPtr<PluginTermCallback>(plugin_info.library.getAddressOfSymbol("LLDBPluginTerminate")); } else { - // The initialize function returned FALSE which means the - // plug-in might not be compatible, or might be too new or - // too old, or might not want to run on this machine. - Host::DynamicLibraryClose (plugin_info.plugin_handle); - plugin_info.plugin_handle = NULL; - plugin_info.plugin_init_callback = NULL; + // The initialize function returned FALSE which means the plug-in might not be + // compatible, or might be too new or too old, or might not want to run on this + // machine. Set it to a default-constructed instance to invalidate it. + plugin_info = PluginInfo(); } // Regardless of success or failure, cache the plug-in load @@ -153,7 +164,7 @@ LoadPluginCallback { // Try and recurse into anything that a directory or symbolic link. // We must also do this for unknown as sometimes the directory enumeration - // might be enurating a file system that doesn't have correct file type + // might be enumerating a file system that doesn't have correct file type // information. return FileSpec::eEnumerateDirectoryResultEnter; } @@ -171,7 +182,7 @@ PluginManager::Initialize () const bool find_files = true; const bool find_other = true; char dir_path[PATH_MAX]; - if (Host::GetLLDBPath (ePathTypeLLDBSystemPlugins, dir_spec)) + if (HostInfo::GetLLDBPath(ePathTypeLLDBSystemPlugins, dir_spec)) { if (dir_spec.Exists() && dir_spec.GetPath(dir_path, sizeof(dir_path))) { @@ -184,7 +195,7 @@ PluginManager::Initialize () } } - if (Host::GetLLDBPath (ePathTypeLLDBUserPlugins, dir_spec)) + if (HostInfo::GetLLDBPath(ePathTypeLLDBUserPlugins, dir_spec)) { if (dir_spec.Exists() && dir_spec.GetPath(dir_path, sizeof(dir_path))) { @@ -210,11 +221,10 @@ PluginManager::Terminate () { // Call the plug-in "void LLDBPluginTerminate (void)" function if there // is one (if the symbol was not NULL). - if (pos->second.plugin_handle) + if (pos->second.library.isValid()) { if (pos->second.plugin_term_callback) pos->second.plugin_term_callback(); - Host::DynamicLibraryClose (pos->second.plugin_handle); } } plugin_map.clear(); @@ -544,6 +554,116 @@ PluginManager::GetDynamicLoaderCreateCallbackForPluginName (const ConstString &n return NULL; } +#pragma mark JITLoader + + +struct JITLoaderInstance +{ + JITLoaderInstance() : + name(), + description(), + create_callback(NULL), + debugger_init_callback (NULL) + { + } + + ConstString name; + std::string description; + JITLoaderCreateInstance create_callback; + DebuggerInitializeCallback debugger_init_callback; +}; + +typedef std::vector<JITLoaderInstance> JITLoaderInstances; + + +static Mutex & +GetJITLoaderMutex () +{ + static Mutex g_instances_mutex (Mutex::eMutexTypeRecursive); + return g_instances_mutex; +} + +static JITLoaderInstances & +GetJITLoaderInstances () +{ + static JITLoaderInstances g_instances; + return g_instances; +} + + +bool +PluginManager::RegisterPlugin +( + const ConstString &name, + const char *description, + JITLoaderCreateInstance create_callback, + DebuggerInitializeCallback debugger_init_callback +) +{ + if (create_callback) + { + JITLoaderInstance instance; + assert ((bool)name); + instance.name = name; + if (description && description[0]) + instance.description = description; + instance.create_callback = create_callback; + instance.debugger_init_callback = debugger_init_callback; + Mutex::Locker locker (GetJITLoaderMutex ()); + GetJITLoaderInstances ().push_back (instance); + } + return false; +} + +bool +PluginManager::UnregisterPlugin (JITLoaderCreateInstance create_callback) +{ + if (create_callback) + { + Mutex::Locker locker (GetJITLoaderMutex ()); + JITLoaderInstances &instances = GetJITLoaderInstances (); + + JITLoaderInstances::iterator pos, end = instances.end(); + for (pos = instances.begin(); pos != end; ++ pos) + { + if (pos->create_callback == create_callback) + { + instances.erase(pos); + return true; + } + } + } + return false; +} + +JITLoaderCreateInstance +PluginManager::GetJITLoaderCreateCallbackAtIndex (uint32_t idx) +{ + Mutex::Locker locker (GetJITLoaderMutex ()); + JITLoaderInstances &instances = GetJITLoaderInstances (); + if (idx < instances.size()) + return instances[idx].create_callback; + return NULL; +} + +JITLoaderCreateInstance +PluginManager::GetJITLoaderCreateCallbackForPluginName (const ConstString &name) +{ + if (name) + { + Mutex::Locker locker (GetJITLoaderMutex ()); + JITLoaderInstances &instances = GetJITLoaderInstances (); + + JITLoaderInstances::iterator pos, end = instances.end(); + for (pos = instances.begin(); pos != end; ++ pos) + { + if (name == pos->name) + return pos->create_callback; + } + } + return NULL; +} + #pragma mark EmulateInstruction @@ -968,7 +1088,8 @@ struct ObjectFileInstance description(), create_callback(NULL), create_memory_callback (NULL), - get_module_specifications (NULL) + get_module_specifications (NULL), + save_core (NULL) { } @@ -977,6 +1098,7 @@ struct ObjectFileInstance ObjectFileCreateInstance create_callback; ObjectFileCreateMemoryInstance create_memory_callback; ObjectFileGetModuleSpecifications get_module_specifications; + ObjectFileSaveCore save_core; }; typedef std::vector<ObjectFileInstance> ObjectFileInstances; @@ -1001,7 +1123,8 @@ PluginManager::RegisterPlugin (const ConstString &name, const char *description, ObjectFileCreateInstance create_callback, ObjectFileCreateMemoryInstance create_memory_callback, - ObjectFileGetModuleSpecifications get_module_specifications) + ObjectFileGetModuleSpecifications get_module_specifications, + ObjectFileSaveCore save_core) { if (create_callback) { @@ -1012,6 +1135,7 @@ PluginManager::RegisterPlugin (const ConstString &name, instance.description = description; instance.create_callback = create_callback; instance.create_memory_callback = create_memory_callback; + instance.save_core = save_core; instance.get_module_specifications = get_module_specifications; Mutex::Locker locker (GetObjectFileMutex ()); GetObjectFileInstances ().push_back (instance); @@ -1108,7 +1232,22 @@ PluginManager::GetObjectFileCreateMemoryCallbackForPluginName (const ConstString return NULL; } - +Error +PluginManager::SaveCore (const lldb::ProcessSP &process_sp, const FileSpec &outfile) +{ + Error error; + Mutex::Locker locker (GetObjectFileMutex ()); + ObjectFileInstances &instances = GetObjectFileInstances (); + + ObjectFileInstances::iterator pos, end = instances.end(); + for (pos = instances.begin(); pos != end; ++ pos) + { + if (pos->save_core && pos->save_core (process_sp, outfile, error)) + return error; + } + error.SetErrorString("no ObjectFile plugins were able to save a core for this process"); + return error; +} #pragma mark ObjectContainer @@ -1945,6 +2084,19 @@ PluginManager::DebuggerInitialize (Debugger &debugger) } } + // Initialize the JITLoader plugins + { + Mutex::Locker locker (GetJITLoaderMutex ()); + JITLoaderInstances &instances = GetJITLoaderInstances (); + + JITLoaderInstances::iterator pos, end = instances.end(); + for (pos = instances.begin(); pos != end; ++ pos) + { + if (pos->debugger_init_callback) + pos->debugger_init_callback (debugger); + } + } + // Initialize the Platform plugins { Mutex::Locker locker (GetPlatformInstancesMutex ()); |
