From: Vedant Kumar Date: Thu, 11 Aug 2016 17:28:33 +0000 (+0000) Subject: [InstrumentationRuntime] Refactor the API (Part 1/N) (NFCI) X-Git-Tag: llvmorg-4.0.0-rc1~12728 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a4fa2e299a983dbe73992648e114d39106185449;p=platform%2Fupstream%2Fllvm.git [InstrumentationRuntime] Refactor the API (Part 1/N) (NFCI) Adapters for instrumentation runtimes have to do two basic things: 1) Load a runtime library. 2) Install breakpoints in that library. This logic is duplicated in the adapters for asan and tsan. Factor it out and document bits of it to make it easier to add new adapters. I tested this with check-lldb, and double-checked testcases/functionalities/{a,t}san. Differential Revision: https://reviews.llvm.org/D23043 llvm-svn: 278367 --- diff --git a/lldb/include/lldb/Target/InstrumentationRuntime.h b/lldb/include/lldb/Target/InstrumentationRuntime.h index a5dc853..c409030b 100644 --- a/lldb/include/lldb/Target/InstrumentationRuntime.h +++ b/lldb/include/lldb/Target/InstrumentationRuntime.h @@ -17,6 +17,7 @@ // Other libraries and framework includes // Project includes +#include "lldb/lldb-forward.h" #include "lldb/lldb-private.h" #include "lldb/lldb-types.h" #include "lldb/Core/PluginInterface.h" @@ -30,16 +31,77 @@ class InstrumentationRuntime : public std::enable_shared_from_this, public PluginInterface { + /// The instrumented process. + lldb::ProcessWP m_process_wp; + + /// The module containing the instrumentation runtime. + lldb::ModuleSP m_runtime_module; + + /// The breakpoint in the instrumentation runtime. + lldb::user_id_t m_breakpoint_id; + + /// Indicates whether or not breakpoints have been registered in the instrumentation runtime. + bool m_is_active; + +protected: + InstrumentationRuntime(const lldb::ProcessSP &process_sp) + : m_process_wp(), m_runtime_module(), m_breakpoint_id(0), m_is_active(false) + { + if (process_sp) + m_process_wp = process_sp; + } + + lldb::ProcessSP + GetProcessSP() + { + return m_process_wp.lock(); + } + + lldb::ModuleSP + GetRuntimeModuleSP() + { + return m_runtime_module; + } + + void + SetRuntimeModuleSP(lldb::ModuleSP module_sp) + { + m_runtime_module = module_sp; + } + + lldb::user_id_t + GetBreakpointID() const + { + return m_breakpoint_id; + } + + void + SetBreakpointID(lldb::user_id_t ID) + { + m_breakpoint_id = ID; + } + + void + SetActive(bool IsActive) + { + m_is_active = IsActive; + } + public: static void ModulesDidLoad(lldb_private::ModuleList &module_list, Process *process, InstrumentationRuntimeCollection &runtimes); - + + /// Look for the instrumentation runtime in \p module_list. Register and activate the runtime if this hasn't already + /// been done. virtual void - ModulesDidLoad(lldb_private::ModuleList &module_list); - - virtual bool - IsActive(); + ModulesDidLoad(lldb_private::ModuleList &module_list) = 0; + + bool + IsActive() const + { + return m_is_active; + } virtual lldb::ThreadCollectionSP GetBacktracesFromExtendedStopInfo(StructuredData::ObjectSP info); diff --git a/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp b/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp index e21e034..736245d 100644 --- a/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp +++ b/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.cpp @@ -63,16 +63,6 @@ AddressSanitizerRuntime::GetTypeStatic() return eInstrumentationRuntimeTypeAddressSanitizer; } -AddressSanitizerRuntime::AddressSanitizerRuntime(const ProcessSP &process_sp) : - m_is_active(false), - m_runtime_module(), - m_process_wp(), - m_breakpoint_id(0) -{ - if (process_sp) - m_process_wp = process_sp; -} - AddressSanitizerRuntime::~AddressSanitizerRuntime() { Deactivate(); @@ -93,7 +83,7 @@ AddressSanitizerRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) if (IsActive()) return; - if (m_runtime_module) { + if (GetRuntimeModuleSP()) { Activate(); return; } @@ -112,7 +102,7 @@ AddressSanitizerRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) { if (ModuleContainsASanRuntime(module_pointer)) { - m_runtime_module = module_pointer->shared_from_this(); + SetRuntimeModuleSP(module_pointer->shared_from_this()); Activate(); return; } @@ -120,12 +110,6 @@ AddressSanitizerRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) } } -bool -AddressSanitizerRuntime::IsActive() -{ - return m_is_active; -} - #define RETRIEVE_REPORT_DATA_FUNCTION_TIMEOUT_USEC 2*1000*1000 const char * address_sanitizer_retrieve_report_data_prefix = R"( @@ -305,7 +289,7 @@ AddressSanitizerRuntime::NotifyBreakpointHit(void *baton, StoppointCallbackConte void AddressSanitizerRuntime::Activate() { - if (m_is_active) + if (IsActive()) return; ProcessSP process_sp = GetProcessSP(); @@ -313,7 +297,7 @@ AddressSanitizerRuntime::Activate() return; ConstString symbol_name ("__asan::AsanDie()"); - const Symbol *symbol = m_runtime_module->FindFirstSymbolWithNameAndType (symbol_name, eSymbolTypeCode); + const Symbol *symbol = GetRuntimeModuleSP()->FindFirstSymbolWithNameAndType (symbol_name, eSymbolTypeCode); if (symbol == NULL) return; @@ -332,7 +316,7 @@ AddressSanitizerRuntime::Activate() Breakpoint *breakpoint = process_sp->GetTarget().CreateBreakpoint(symbol_address, internal, hardware).get(); breakpoint->SetCallback (AddressSanitizerRuntime::NotifyBreakpointHit, this, true); breakpoint->SetBreakpointKind ("address-sanitizer-report"); - m_breakpoint_id = breakpoint->GetID(); + SetBreakpointID(breakpoint->GetID()); StreamFileSP stream_sp (process_sp->GetTarget().GetDebugger().GetOutputFile()); if (stream_sp) @@ -340,20 +324,20 @@ AddressSanitizerRuntime::Activate() stream_sp->Printf ("AddressSanitizer debugger support is active. Memory error breakpoint has been installed and you can now use the 'memory history' command.\n"); } - m_is_active = true; + SetActive(true); } void AddressSanitizerRuntime::Deactivate() { - if (m_breakpoint_id != LLDB_INVALID_BREAK_ID) + if (GetBreakpointID() != LLDB_INVALID_BREAK_ID) { ProcessSP process_sp = GetProcessSP(); if (process_sp) { - process_sp->GetTarget().RemoveBreakpointByID(m_breakpoint_id); - m_breakpoint_id = LLDB_INVALID_BREAK_ID; + process_sp->GetTarget().RemoveBreakpointByID(GetBreakpointID()); + SetBreakpointID(LLDB_INVALID_BREAK_ID); } } - m_is_active = false; + SetActive(false); } diff --git a/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h b/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h index f1e1a7a..262a7c8 100644 --- a/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h +++ b/lldb/source/Plugins/InstrumentationRuntime/AddressSanitizer/AddressSanitizerRuntime.h @@ -59,17 +59,8 @@ public: void ModulesDidLoad(lldb_private::ModuleList &module_list) override; - bool - IsActive() override; - private: - AddressSanitizerRuntime(const lldb::ProcessSP &process_sp); - - lldb::ProcessSP - GetProcessSP () - { - return m_process_wp.lock(); - } + AddressSanitizerRuntime(const lldb::ProcessSP &process_sp) : lldb_private::InstrumentationRuntime(process_sp) {} void Activate(); @@ -85,11 +76,6 @@ private: std::string FormatDescription(StructuredData::ObjectSP report); - - bool m_is_active; - lldb::ModuleSP m_runtime_module; - lldb::ProcessWP m_process_wp; - lldb::user_id_t m_breakpoint_id; }; } // namespace lldb_private diff --git a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp index a08c26f..658c70a 100644 --- a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp +++ b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp @@ -68,16 +68,6 @@ ThreadSanitizerRuntime::GetTypeStatic() return eInstrumentationRuntimeTypeThreadSanitizer; } -ThreadSanitizerRuntime::ThreadSanitizerRuntime(const ProcessSP &process_sp) : -m_is_active(false), -m_runtime_module_wp(), -m_process_wp(), -m_breakpoint_id(0) -{ - if (process_sp) - m_process_wp = process_sp; -} - ThreadSanitizerRuntime::~ThreadSanitizerRuntime() { Deactivate(); @@ -113,7 +103,7 @@ ThreadSanitizerRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) { if (ModuleContainsTSanRuntime(module_sp)) { - m_runtime_module_wp = module_sp; + SetRuntimeModuleSP(module_sp); Activate(); return false; // Stop iterating } @@ -123,12 +113,6 @@ ThreadSanitizerRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) }); } -bool -ThreadSanitizerRuntime::IsActive() -{ - return m_is_active; -} - #define RETRIEVE_REPORT_DATA_FUNCTION_TIMEOUT_USEC 2*1000*1000 const char * @@ -732,7 +716,7 @@ ThreadSanitizerRuntime::NotifyBreakpointHit(void *baton, StoppointCallbackContex void ThreadSanitizerRuntime::Activate() { - if (m_is_active) + if (IsActive()) return; ProcessSP process_sp = GetProcessSP(); @@ -759,7 +743,7 @@ ThreadSanitizerRuntime::Activate() Breakpoint *breakpoint = process_sp->GetTarget().CreateBreakpoint(symbol_address, internal, hardware).get(); breakpoint->SetCallback (ThreadSanitizerRuntime::NotifyBreakpointHit, this, true); breakpoint->SetBreakpointKind ("thread-sanitizer-report"); - m_breakpoint_id = breakpoint->GetID(); + SetBreakpointID(breakpoint->GetID()); StreamFileSP stream_sp (process_sp->GetTarget().GetDebugger().GetOutputFile()); if (stream_sp) @@ -767,22 +751,22 @@ ThreadSanitizerRuntime::Activate() stream_sp->Printf ("ThreadSanitizer debugger support is active.\n"); } - m_is_active = true; + SetActive(true); } void ThreadSanitizerRuntime::Deactivate() { - if (m_breakpoint_id != LLDB_INVALID_BREAK_ID) + if (GetBreakpointID() != LLDB_INVALID_BREAK_ID) { ProcessSP process_sp = GetProcessSP(); if (process_sp) { - process_sp->GetTarget().RemoveBreakpointByID(m_breakpoint_id); - m_breakpoint_id = LLDB_INVALID_BREAK_ID; + process_sp->GetTarget().RemoveBreakpointByID(GetBreakpointID()); + SetBreakpointID(LLDB_INVALID_BREAK_ID); } } - m_is_active = false; + SetActive(false); } static std::string diff --git a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.h b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.h index ca7af23..16516ca 100644 --- a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.h +++ b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.h @@ -17,7 +17,6 @@ #include "lldb/lldb-private.h" #include "lldb/Target/ABI.h" #include "lldb/Target/InstrumentationRuntime.h" -#include "lldb/Target/Process.h" #include "lldb/Core/StructuredData.h" namespace lldb_private { @@ -60,26 +59,11 @@ public: void ModulesDidLoad(lldb_private::ModuleList &module_list) override; - bool - IsActive() override; - lldb::ThreadCollectionSP GetBacktracesFromExtendedStopInfo(StructuredData::ObjectSP info) override; private: - ThreadSanitizerRuntime(const lldb::ProcessSP &process_sp); - - lldb::ProcessSP - GetProcessSP () - { - return m_process_wp.lock(); - } - - lldb::ModuleSP - GetRuntimeModuleSP () - { - return m_runtime_module_wp.lock(); - } + ThreadSanitizerRuntime(const lldb::ProcessSP &process_sp) : lldb_private::InstrumentationRuntime(process_sp) {} void Activate(); @@ -107,11 +91,6 @@ private: lldb::addr_t GetFirstNonInternalFramePc(StructuredData::ObjectSP trace); - - bool m_is_active; - lldb::ModuleWP m_runtime_module_wp; - lldb::ProcessWP m_process_wp; - lldb::user_id_t m_breakpoint_id; }; } // namespace lldb_private diff --git a/lldb/source/Target/InstrumentationRuntime.cpp b/lldb/source/Target/InstrumentationRuntime.cpp index af7955f..9e25f9c 100644 --- a/lldb/source/Target/InstrumentationRuntime.cpp +++ b/lldb/source/Target/InstrumentationRuntime.cpp @@ -40,17 +40,6 @@ InstrumentationRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list, ll } } -void -InstrumentationRuntime::ModulesDidLoad(lldb_private::ModuleList &module_list) -{ -} - -bool -InstrumentationRuntime::IsActive() -{ - return false; -} - lldb::ThreadCollectionSP InstrumentationRuntime::GetBacktracesFromExtendedStopInfo(StructuredData::ObjectSP info) {