diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp | 534 |
1 files changed, 241 insertions, 293 deletions
diff --git a/contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp b/contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp index f61af07..cacb491 100644 --- a/contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp +++ b/contrib/llvm/tools/lldb/source/Target/LanguageRuntime.cpp @@ -14,340 +14,288 @@ #include "lldb/Target/LanguageRuntime.h" #include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h" #include "Plugins/Language/ObjC/ObjCLanguage.h" -#include "lldb/Target/ObjCLanguageRuntime.h" -#include "lldb/Target/Target.h" #include "lldb/Core/PluginManager.h" #include "lldb/Core/SearchFilter.h" #include "lldb/Interpreter/CommandInterpreter.h" +#include "lldb/Target/ObjCLanguageRuntime.h" +#include "lldb/Target/Target.h" using namespace lldb; using namespace lldb_private; -class ExceptionSearchFilter : public SearchFilter -{ -public: - ExceptionSearchFilter (const lldb::TargetSP &target_sp, - lldb::LanguageType language, - bool update_module_list = true) : - SearchFilter(target_sp), - m_language(language), - m_language_runtime(nullptr), - m_filter_sp() - { - if (update_module_list) - UpdateModuleListIfNeeded (); - } +ExceptionSearchFilter::ExceptionSearchFilter(const lldb::TargetSP &target_sp, + lldb::LanguageType language, + bool update_module_list) + : SearchFilter(target_sp, FilterTy::Exception), m_language(language), + m_language_runtime(nullptr), m_filter_sp() { + if (update_module_list) + UpdateModuleListIfNeeded(); +} - ~ExceptionSearchFilter() override = default; +bool ExceptionSearchFilter::ModulePasses(const lldb::ModuleSP &module_sp) { + UpdateModuleListIfNeeded(); + if (m_filter_sp) + return m_filter_sp->ModulePasses(module_sp); + return false; +} - bool - ModulePasses (const lldb::ModuleSP &module_sp) override - { - UpdateModuleListIfNeeded (); - if (m_filter_sp) - return m_filter_sp->ModulePasses (module_sp); - return false; - } - - bool - ModulePasses (const FileSpec &spec) override - { - UpdateModuleListIfNeeded (); - if (m_filter_sp) - return m_filter_sp->ModulePasses (spec); - return false; - } - - void - Search (Searcher &searcher) override - { - UpdateModuleListIfNeeded (); - if (m_filter_sp) - m_filter_sp->Search (searcher); - } +bool ExceptionSearchFilter::ModulePasses(const FileSpec &spec) { + UpdateModuleListIfNeeded(); + if (m_filter_sp) + return m_filter_sp->ModulePasses(spec); + return false; +} - void - GetDescription (Stream *s) override - { - UpdateModuleListIfNeeded (); - if (m_filter_sp) - m_filter_sp->GetDescription (s); - } - -protected: - LanguageType m_language; - LanguageRuntime *m_language_runtime; - SearchFilterSP m_filter_sp; - - SearchFilterSP - DoCopyForBreakpoint(Breakpoint &breakpoint) override - { - return SearchFilterSP(new ExceptionSearchFilter(TargetSP(), m_language, false)); +void ExceptionSearchFilter::Search(Searcher &searcher) { + UpdateModuleListIfNeeded(); + if (m_filter_sp) + m_filter_sp->Search(searcher); +} + +void ExceptionSearchFilter::GetDescription(Stream *s) { + UpdateModuleListIfNeeded(); + if (m_filter_sp) + m_filter_sp->GetDescription(s); +} + +void ExceptionSearchFilter::UpdateModuleListIfNeeded() { + ProcessSP process_sp(m_target_sp->GetProcessSP()); + if (process_sp) { + bool refreash_filter = !m_filter_sp; + if (m_language_runtime == nullptr) { + m_language_runtime = process_sp->GetLanguageRuntime(m_language); + refreash_filter = true; + } else { + LanguageRuntime *language_runtime = + process_sp->GetLanguageRuntime(m_language); + if (m_language_runtime != language_runtime) { + m_language_runtime = language_runtime; + refreash_filter = true; + } } - void - UpdateModuleListIfNeeded () - { - ProcessSP process_sp (m_target_sp->GetProcessSP()); - if (process_sp) - { - bool refreash_filter = !m_filter_sp; - if (m_language_runtime == nullptr) - { - m_language_runtime = process_sp->GetLanguageRuntime(m_language); - refreash_filter = true; - } - else - { - LanguageRuntime *language_runtime = process_sp->GetLanguageRuntime(m_language); - if (m_language_runtime != language_runtime) - { - m_language_runtime = language_runtime; - refreash_filter = true; - } - } - - if (refreash_filter && m_language_runtime) - { - m_filter_sp = m_language_runtime->CreateExceptionSearchFilter (); - } - } - else - { - m_filter_sp.reset(); - m_language_runtime = nullptr; - } + if (refreash_filter && m_language_runtime) { + m_filter_sp = m_language_runtime->CreateExceptionSearchFilter(); } -}; + } else { + m_filter_sp.reset(); + m_language_runtime = nullptr; + } +} + +SearchFilterSP +ExceptionSearchFilter::DoCopyForBreakpoint(Breakpoint &breakpoint) { + return SearchFilterSP( + new ExceptionSearchFilter(TargetSP(), m_language, false)); +} + +SearchFilter *ExceptionSearchFilter::CreateFromStructuredData( + Target &target, const StructuredData::Dictionary &data_dict, Error &error) { + SearchFilter *result = nullptr; + return result; +} + +StructuredData::ObjectSP ExceptionSearchFilter::SerializeToStructuredData() { + StructuredData::ObjectSP result_sp; + + return result_sp; +} // The Target is the one that knows how to create breakpoints, so this function -// is meant to be used either by the target or internally in Set/ClearExceptionBreakpoints. -class ExceptionBreakpointResolver : public BreakpointResolver -{ +// is meant to be used either by the target or internally in +// Set/ClearExceptionBreakpoints. +class ExceptionBreakpointResolver : public BreakpointResolver { public: - ExceptionBreakpointResolver (lldb::LanguageType language, - bool catch_bp, - bool throw_bp) : - BreakpointResolver(nullptr, BreakpointResolver::ExceptionResolver), - m_language(language), - m_language_runtime(nullptr), - m_catch_bp(catch_bp), - m_throw_bp(throw_bp) - { - } + ExceptionBreakpointResolver(lldb::LanguageType language, bool catch_bp, + bool throw_bp) + : BreakpointResolver(nullptr, BreakpointResolver::ExceptionResolver), + m_language(language), m_language_runtime(nullptr), m_catch_bp(catch_bp), + m_throw_bp(throw_bp) {} - ~ExceptionBreakpointResolver() override = default; - - Searcher::CallbackReturn - SearchCallback (SearchFilter &filter, - SymbolContext &context, - Address *addr, - bool containing) override - { - - if (SetActualResolver()) - return m_actual_resolver_sp->SearchCallback (filter, context, addr, containing); - else - return eCallbackReturnStop; - } - - Searcher::Depth - GetDepth () override - { - if (SetActualResolver()) - return m_actual_resolver_sp->GetDepth(); - else - return eDepthTarget; - } - - void - GetDescription (Stream *s) override - { - Language *language_plugin = Language::FindPlugin(m_language); - if (language_plugin) - language_plugin->GetExceptionResolverDescription(m_catch_bp, m_throw_bp, *s); - else - Language::GetDefaultExceptionResolverDescription(m_catch_bp, m_throw_bp, *s); - - SetActualResolver(); - if (m_actual_resolver_sp) - { - s->Printf (" using: "); - m_actual_resolver_sp->GetDescription (s); - } - else - s->Printf (" the correct runtime exception handler will be determined when you run"); - } + ~ExceptionBreakpointResolver() override = default; - void - Dump (Stream *s) const override - { - } - - /// Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const BreakpointResolverName *) { return true; } - static inline bool classof(const BreakpointResolver *V) { - return V->getResolverID() == BreakpointResolver::ExceptionResolver; - } + Searcher::CallbackReturn SearchCallback(SearchFilter &filter, + SymbolContext &context, Address *addr, + bool containing) override { + + if (SetActualResolver()) + return m_actual_resolver_sp->SearchCallback(filter, context, addr, + containing); + else + return eCallbackReturnStop; + } + + Searcher::Depth GetDepth() override { + if (SetActualResolver()) + return m_actual_resolver_sp->GetDepth(); + else + return eDepthTarget; + } + + void GetDescription(Stream *s) override { + Language *language_plugin = Language::FindPlugin(m_language); + if (language_plugin) + language_plugin->GetExceptionResolverDescription(m_catch_bp, m_throw_bp, + *s); + else + Language::GetDefaultExceptionResolverDescription(m_catch_bp, m_throw_bp, + *s); + + SetActualResolver(); + if (m_actual_resolver_sp) { + s->Printf(" using: "); + m_actual_resolver_sp->GetDescription(s); + } else + s->Printf(" the correct runtime exception handler will be determined " + "when you run"); + } + + void Dump(Stream *s) const override {} + + /// Methods for support type inquiry through isa, cast, and dyn_cast: + static inline bool classof(const BreakpointResolverName *) { return true; } + static inline bool classof(const BreakpointResolver *V) { + return V->getResolverID() == BreakpointResolver::ExceptionResolver; + } protected: - BreakpointResolverSP - CopyForBreakpoint (Breakpoint &breakpoint) override - { - return BreakpointResolverSP(new ExceptionBreakpointResolver(m_language, m_catch_bp, m_throw_bp)); - } + BreakpointResolverSP CopyForBreakpoint(Breakpoint &breakpoint) override { + return BreakpointResolverSP( + new ExceptionBreakpointResolver(m_language, m_catch_bp, m_throw_bp)); + } - bool - SetActualResolver() - { - ProcessSP process_sp; - if (m_breakpoint) - { - process_sp = m_breakpoint->GetTarget().GetProcessSP(); - if (process_sp) - { - bool refreash_resolver = !m_actual_resolver_sp; - if (m_language_runtime == nullptr) - { - m_language_runtime = process_sp->GetLanguageRuntime(m_language); - refreash_resolver = true; - } - else - { - LanguageRuntime *language_runtime = process_sp->GetLanguageRuntime(m_language); - if (m_language_runtime != language_runtime) - { - m_language_runtime = language_runtime; - refreash_resolver = true; - } - } - - if (refreash_resolver && m_language_runtime) - { - m_actual_resolver_sp = m_language_runtime->CreateExceptionResolver (m_breakpoint, m_catch_bp, m_throw_bp); - } - } - else - { - m_actual_resolver_sp.reset(); - m_language_runtime = nullptr; - } + bool SetActualResolver() { + ProcessSP process_sp; + if (m_breakpoint) { + process_sp = m_breakpoint->GetTarget().GetProcessSP(); + if (process_sp) { + bool refreash_resolver = !m_actual_resolver_sp; + if (m_language_runtime == nullptr) { + m_language_runtime = process_sp->GetLanguageRuntime(m_language); + refreash_resolver = true; + } else { + LanguageRuntime *language_runtime = + process_sp->GetLanguageRuntime(m_language); + if (m_language_runtime != language_runtime) { + m_language_runtime = language_runtime; + refreash_resolver = true; + } } - else - { - m_actual_resolver_sp.reset(); - m_language_runtime = nullptr; + + if (refreash_resolver && m_language_runtime) { + m_actual_resolver_sp = m_language_runtime->CreateExceptionResolver( + m_breakpoint, m_catch_bp, m_throw_bp); } - return (bool)m_actual_resolver_sp; + } else { + m_actual_resolver_sp.reset(); + m_language_runtime = nullptr; + } + } else { + m_actual_resolver_sp.reset(); + m_language_runtime = nullptr; } + return (bool)m_actual_resolver_sp; + } - lldb::BreakpointResolverSP m_actual_resolver_sp; - lldb::LanguageType m_language; - LanguageRuntime *m_language_runtime; - bool m_catch_bp; - bool m_throw_bp; + lldb::BreakpointResolverSP m_actual_resolver_sp; + lldb::LanguageType m_language; + LanguageRuntime *m_language_runtime; + bool m_catch_bp; + bool m_throw_bp; }; -LanguageRuntime* -LanguageRuntime::FindPlugin (Process *process, lldb::LanguageType language) -{ - std::unique_ptr<LanguageRuntime> language_runtime_ap; - LanguageRuntimeCreateInstance create_callback; +LanguageRuntime *LanguageRuntime::FindPlugin(Process *process, + lldb::LanguageType language) { + std::unique_ptr<LanguageRuntime> language_runtime_ap; + LanguageRuntimeCreateInstance create_callback; - for (uint32_t idx = 0; - (create_callback = PluginManager::GetLanguageRuntimeCreateCallbackAtIndex(idx)) != nullptr; - ++idx) - { - language_runtime_ap.reset (create_callback(process, language)); + for (uint32_t idx = 0; + (create_callback = + PluginManager::GetLanguageRuntimeCreateCallbackAtIndex(idx)) != + nullptr; + ++idx) { + language_runtime_ap.reset(create_callback(process, language)); - if (language_runtime_ap) - return language_runtime_ap.release(); - } + if (language_runtime_ap) + return language_runtime_ap.release(); + } - return nullptr; + return nullptr; } -LanguageRuntime::LanguageRuntime(Process *process) : - m_process (process) -{ -} +LanguageRuntime::LanguageRuntime(Process *process) : m_process(process) {} LanguageRuntime::~LanguageRuntime() = default; Breakpoint::BreakpointPreconditionSP -LanguageRuntime::CreateExceptionPrecondition (lldb::LanguageType language, - bool catch_bp, - bool throw_bp) -{ - switch (language) - { - case eLanguageTypeObjC: - if (throw_bp) - return Breakpoint::BreakpointPreconditionSP(new ObjCLanguageRuntime::ObjCExceptionPrecondition ()); - break; - default: - break; - } - return Breakpoint::BreakpointPreconditionSP(); +LanguageRuntime::CreateExceptionPrecondition(lldb::LanguageType language, + bool catch_bp, bool throw_bp) { + switch (language) { + case eLanguageTypeObjC: + if (throw_bp) + return Breakpoint::BreakpointPreconditionSP( + new ObjCLanguageRuntime::ObjCExceptionPrecondition()); + break; + default: + break; + } + return Breakpoint::BreakpointPreconditionSP(); } -BreakpointSP -LanguageRuntime::CreateExceptionBreakpoint (Target &target, - lldb::LanguageType language, - bool catch_bp, - bool throw_bp, - bool is_internal) -{ - BreakpointResolverSP resolver_sp(new ExceptionBreakpointResolver(language, catch_bp, throw_bp)); - SearchFilterSP filter_sp(new ExceptionSearchFilter(target.shared_from_this(), language)); - bool hardware = false; - bool resolve_indirect_functions = false; - BreakpointSP exc_breakpt_sp (target.CreateBreakpoint (filter_sp, resolver_sp, is_internal, hardware, resolve_indirect_functions)); - if (exc_breakpt_sp) - { - Breakpoint::BreakpointPreconditionSP precondition_sp = CreateExceptionPrecondition(language, catch_bp, throw_bp); - if (precondition_sp) - exc_breakpt_sp->SetPrecondition(precondition_sp); - - if (is_internal) - exc_breakpt_sp->SetBreakpointKind("exception"); - } - - return exc_breakpt_sp; +BreakpointSP LanguageRuntime::CreateExceptionBreakpoint( + Target &target, lldb::LanguageType language, bool catch_bp, bool throw_bp, + bool is_internal) { + BreakpointResolverSP resolver_sp( + new ExceptionBreakpointResolver(language, catch_bp, throw_bp)); + SearchFilterSP filter_sp( + new ExceptionSearchFilter(target.shared_from_this(), language)); + bool hardware = false; + bool resolve_indirect_functions = false; + BreakpointSP exc_breakpt_sp( + target.CreateBreakpoint(filter_sp, resolver_sp, is_internal, hardware, + resolve_indirect_functions)); + if (exc_breakpt_sp) { + Breakpoint::BreakpointPreconditionSP precondition_sp = + CreateExceptionPrecondition(language, catch_bp, throw_bp); + if (precondition_sp) + exc_breakpt_sp->SetPrecondition(precondition_sp); + + if (is_internal) + exc_breakpt_sp->SetBreakpointKind("exception"); + } + + return exc_breakpt_sp; } -void -LanguageRuntime::InitializeCommands (CommandObject* parent) -{ - if (!parent) - return; - - if (!parent->IsMultiwordObject()) - return; - - LanguageRuntimeCreateInstance create_callback; - - for (uint32_t idx = 0; - (create_callback = PluginManager::GetLanguageRuntimeCreateCallbackAtIndex(idx)) != nullptr; - ++idx) - { - if (LanguageRuntimeGetCommandObject command_callback = - PluginManager::GetLanguageRuntimeGetCommandObjectAtIndex(idx)) - { - CommandObjectSP command = command_callback(parent->GetCommandInterpreter()); - if (command) - { - // the CommandObject vended by a Language plugin cannot be created once and cached because - // we may create multiple debuggers and need one instance of the command each - the implementing function - // is meant to create a new instance of the command each time it is invoked - parent->LoadSubCommand(command->GetCommandName(), command); - } - } +void LanguageRuntime::InitializeCommands(CommandObject *parent) { + if (!parent) + return; + + if (!parent->IsMultiwordObject()) + return; + + LanguageRuntimeCreateInstance create_callback; + + for (uint32_t idx = 0; + (create_callback = + PluginManager::GetLanguageRuntimeCreateCallbackAtIndex(idx)) != + nullptr; + ++idx) { + if (LanguageRuntimeGetCommandObject command_callback = + PluginManager::GetLanguageRuntimeGetCommandObjectAtIndex(idx)) { + CommandObjectSP command = + command_callback(parent->GetCommandInterpreter()); + if (command) { + // the CommandObject vended by a Language plugin cannot be created once + // and cached because we may create multiple debuggers and need one + // instance of the command each - the implementing function is meant to + // create a new instance of the command each time it is invoked. + parent->LoadSubCommand(command->GetCommandName().str().c_str(), command); + } } + } } -lldb::SearchFilterSP -LanguageRuntime::CreateExceptionSearchFilter () -{ - return m_process->GetTarget().GetSearchFilterForModule(nullptr); +lldb::SearchFilterSP LanguageRuntime::CreateExceptionSearchFilter() { + return m_process->GetTarget().GetSearchFilterForModule(nullptr); } |
