//===-- SBFrame.cpp ---------------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // C Includes // C++ Includes #include #include #include // Other libraries and framework includes // Project includes #include "lldb/API/SBFrame.h" #include "lldb/lldb-types.h" #include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h" #include "lldb/Core/Address.h" #include "lldb/Core/StreamFile.h" #include "lldb/Core/ValueObjectRegister.h" #include "lldb/Core/ValueObjectVariable.h" #include "lldb/Expression/UserExpression.h" #include "lldb/Host/Host.h" #include "lldb/Symbol/Block.h" #include "lldb/Symbol/Function.h" #include "lldb/Symbol/Symbol.h" #include "lldb/Symbol/SymbolContext.h" #include "lldb/Symbol/Variable.h" #include "lldb/Symbol/VariableList.h" #include "lldb/Target/ExecutionContext.h" #include "lldb/Target/Process.h" #include "lldb/Target/RegisterContext.h" #include "lldb/Target/StackFrame.h" #include "lldb/Target/StackID.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" #include "lldb/Utility/ConstString.h" #include "lldb/Utility/Log.h" #include "lldb/Utility/Stream.h" #include "lldb/API/SBAddress.h" #include "lldb/API/SBDebugger.h" #include "lldb/API/SBExpressionOptions.h" #include "lldb/API/SBStream.h" #include "lldb/API/SBSymbolContext.h" #include "lldb/API/SBThread.h" #include "lldb/API/SBValue.h" #include "lldb/API/SBVariablesOptions.h" #include "llvm/Support/PrettyStackTrace.h" using namespace lldb; using namespace lldb_private; SBFrame::SBFrame() : m_opaque_sp(new ExecutionContextRef()) {} SBFrame::SBFrame(const StackFrameSP &lldb_object_sp) : m_opaque_sp(new ExecutionContextRef(lldb_object_sp)) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); if (log) { SBStream sstr; GetDescription(sstr); log->Printf("SBFrame::SBFrame (sp=%p) => SBFrame(%p): %s", static_cast(lldb_object_sp.get()), static_cast(lldb_object_sp.get()), sstr.GetData()); } } SBFrame::SBFrame(const SBFrame &rhs) : m_opaque_sp(new ExecutionContextRef(*rhs.m_opaque_sp)) {} SBFrame::~SBFrame() = default; const SBFrame &SBFrame::operator=(const SBFrame &rhs) { if (this != &rhs) *m_opaque_sp = *rhs.m_opaque_sp; return *this; } StackFrameSP SBFrame::GetFrameSP() const { return (m_opaque_sp ? m_opaque_sp->GetFrameSP() : StackFrameSP()); } void SBFrame::SetFrameSP(const StackFrameSP &lldb_object_sp) { return m_opaque_sp->SetFrameSP(lldb_object_sp); } bool SBFrame::IsValid() const { std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) return GetFrameSP().get() != nullptr; } // Without a target & process we can't have a valid stack frame. return false; } SBSymbolContext SBFrame::GetSymbolContext(uint32_t resolve_scope) const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBSymbolContext sb_sym_ctx; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_sym_ctx.SetSymbolContext(&frame->GetSymbolContext(resolve_scope)); } else { if (log) log->Printf("SBFrame::GetVariables () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf( "SBFrame::GetSymbolContext () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetSymbolContext (resolve_scope=0x%8.8x) => " "SBSymbolContext(%p)", static_cast(frame), resolve_scope, static_cast(sb_sym_ctx.get())); return sb_sym_ctx; } SBModule SBFrame::GetModule() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBModule sb_module; ModuleSP module_sp; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { module_sp = frame->GetSymbolContext(eSymbolContextModule).module_sp; sb_module.SetSP(module_sp); } else { if (log) log->Printf("SBFrame::GetModule () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetModule () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetModule () => SBModule(%p)", static_cast(frame), static_cast(module_sp.get())); return sb_module; } SBCompileUnit SBFrame::GetCompileUnit() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBCompileUnit sb_comp_unit; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_comp_unit.reset( frame->GetSymbolContext(eSymbolContextCompUnit).comp_unit); } else { if (log) log->Printf("SBFrame::GetCompileUnit () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetCompileUnit () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetCompileUnit () => SBCompileUnit(%p)", static_cast(frame), static_cast(sb_comp_unit.get())); return sb_comp_unit; } SBFunction SBFrame::GetFunction() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBFunction sb_function; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_function.reset( frame->GetSymbolContext(eSymbolContextFunction).function); } else { if (log) log->Printf("SBFrame::GetFunction () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetFunction () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetFunction () => SBFunction(%p)", static_cast(frame), static_cast(sb_function.get())); return sb_function; } SBSymbol SBFrame::GetSymbol() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBSymbol sb_symbol; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_symbol.reset(frame->GetSymbolContext(eSymbolContextSymbol).symbol); } else { if (log) log->Printf("SBFrame::GetSymbol () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetSymbol () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetSymbol () => SBSymbol(%p)", static_cast(frame), static_cast(sb_symbol.get())); return sb_symbol; } SBBlock SBFrame::GetBlock() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBBlock sb_block; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_block.SetPtr(frame->GetSymbolContext(eSymbolContextBlock).block); } else { if (log) log->Printf("SBFrame::GetBlock () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame(%p)::GetBlock () => error: process is running", static_cast(frame)); } } if (log) log->Printf("SBFrame(%p)::GetBlock () => SBBlock(%p)", static_cast(frame), static_cast(sb_block.GetPtr())); return sb_block; } SBBlock SBFrame::GetFrameBlock() const { SBBlock sb_block; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_block.SetPtr(frame->GetFrameBlock()); } else { if (log) log->Printf("SBFrame::GetFrameBlock () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetFrameBlock () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetFrameBlock () => SBBlock(%p)", static_cast(frame), static_cast(sb_block.GetPtr())); return sb_block; } SBLineEntry SBFrame::GetLineEntry() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBLineEntry sb_line_entry; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_line_entry.SetLineEntry( frame->GetSymbolContext(eSymbolContextLineEntry).line_entry); } else { if (log) log->Printf("SBFrame::GetLineEntry () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetLineEntry () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetLineEntry () => SBLineEntry(%p)", static_cast(frame), static_cast(sb_line_entry.get())); return sb_line_entry; } uint32_t SBFrame::GetFrameID() const { uint32_t frame_idx = UINT32_MAX; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); if (frame) frame_idx = frame->GetFrameIndex(); Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); if (log) log->Printf("SBFrame(%p)::GetFrameID () => %u", static_cast(frame), frame_idx); return frame_idx; } lldb::addr_t SBFrame::GetCFA() const { std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); if (frame) return frame->GetStackID().GetCallFrameAddress(); return LLDB_INVALID_ADDRESS; } addr_t SBFrame::GetPC() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); addr_t addr = LLDB_INVALID_ADDRESS; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { addr = frame->GetFrameCodeAddress().GetOpcodeLoadAddress( target, eAddressClassCode); } else { if (log) log->Printf("SBFrame::GetPC () => error: could not reconstruct frame " "object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetPC () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetPC () => 0x%" PRIx64, static_cast(frame), addr); return addr; } bool SBFrame::SetPC(addr_t new_pc) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); bool ret_val = false; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { ret_val = frame->GetRegisterContext()->SetPC(new_pc); } else { if (log) log->Printf("SBFrame::SetPC () => error: could not reconstruct frame " "object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::SetPC () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::SetPC (new_pc=0x%" PRIx64 ") => %i", static_cast(frame), new_pc, ret_val); return ret_val; } addr_t SBFrame::GetSP() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); addr_t addr = LLDB_INVALID_ADDRESS; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { addr = frame->GetRegisterContext()->GetSP(); } else { if (log) log->Printf("SBFrame::GetSP () => error: could not reconstruct frame " "object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetSP () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetSP () => 0x%" PRIx64, static_cast(frame), addr); return addr; } addr_t SBFrame::GetFP() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); addr_t addr = LLDB_INVALID_ADDRESS; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { addr = frame->GetRegisterContext()->GetFP(); } else { if (log) log->Printf("SBFrame::GetFP () => error: could not reconstruct frame " "object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetFP () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetFP () => 0x%" PRIx64, static_cast(frame), addr); return addr; } SBAddress SBFrame::GetPCAddress() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBAddress sb_addr; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { sb_addr.SetAddress(&frame->GetFrameCodeAddress()); } else { if (log) log->Printf("SBFrame::GetPCAddress () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetPCAddress () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetPCAddress () => SBAddress(%p)", static_cast(frame), static_cast(sb_addr.get())); return sb_addr; } void SBFrame::Clear() { m_opaque_sp->Clear(); } lldb::SBValue SBFrame::GetValueForVariablePath(const char *var_path) { SBValue sb_value; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (frame && target) { lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue(); sb_value = GetValueForVariablePath(var_path, use_dynamic); } return sb_value; } lldb::SBValue SBFrame::GetValueForVariablePath(const char *var_path, DynamicValueType use_dynamic) { SBValue sb_value; Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); if (var_path == nullptr || var_path[0] == '\0') { if (log) log->Printf( "SBFrame::GetValueForVariablePath called with empty variable path."); return sb_value; } std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { VariableSP var_sp; Status error; ValueObjectSP value_sp(frame->GetValueForVariableExpressionPath( var_path, eNoDynamicValues, StackFrame::eExpressionPathOptionCheckPtrVsMember | StackFrame::eExpressionPathOptionsAllowDirectIVarAccess, var_sp, error)); sb_value.SetSP(value_sp, use_dynamic); } else { if (log) log->Printf("SBFrame::GetValueForVariablePath () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf( "SBFrame::GetValueForVariablePath () => error: process is running"); } } return sb_value; } SBValue SBFrame::FindVariable(const char *name) { SBValue value; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (frame && target) { lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue(); value = FindVariable(name, use_dynamic); } return value; } SBValue SBFrame::FindVariable(const char *name, lldb::DynamicValueType use_dynamic) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); VariableSP var_sp; SBValue sb_value; if (name == nullptr || name[0] == '\0') { if (log) log->Printf("SBFrame::FindVariable called with empty name"); return sb_value; } ValueObjectSP value_sp; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { VariableList variable_list; SymbolContext sc(frame->GetSymbolContext(eSymbolContextBlock)); if (sc.block) { const bool can_create = true; const bool get_parent_variables = true; const bool stop_if_block_is_inlined_function = true; if (sc.block->AppendVariables( can_create, get_parent_variables, stop_if_block_is_inlined_function, [frame](Variable *v) { return v->IsInScope(frame); }, &variable_list)) { var_sp = variable_list.FindVariable(ConstString(name)); } } if (var_sp) { value_sp = frame->GetValueObjectForFrameVariable(var_sp, eNoDynamicValues); sb_value.SetSP(value_sp, use_dynamic); } } else { if (log) log->Printf("SBFrame::FindVariable () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::FindVariable () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::FindVariable (name=\"%s\") => SBValue(%p)", static_cast(frame), name, static_cast(value_sp.get())); return sb_value; } SBValue SBFrame::FindValue(const char *name, ValueType value_type) { SBValue value; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (frame && target) { lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue(); value = FindValue(name, value_type, use_dynamic); } return value; } SBValue SBFrame::FindValue(const char *name, ValueType value_type, lldb::DynamicValueType use_dynamic) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBValue sb_value; if (name == nullptr || name[0] == '\0') { if (log) log->Printf("SBFrame::FindValue called with empty name."); return sb_value; } ValueObjectSP value_sp; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { VariableList variable_list; switch (value_type) { case eValueTypeVariableGlobal: // global variable case eValueTypeVariableStatic: // static variable case eValueTypeVariableArgument: // function argument variables case eValueTypeVariableLocal: // function local variables case eValueTypeVariableThreadLocal: // thread local variables { SymbolContext sc(frame->GetSymbolContext(eSymbolContextBlock)); const bool can_create = true; const bool get_parent_variables = true; const bool stop_if_block_is_inlined_function = true; if (sc.block) sc.block->AppendVariables( can_create, get_parent_variables, stop_if_block_is_inlined_function, [frame](Variable *v) { return v->IsInScope(frame); }, &variable_list); if (value_type == eValueTypeVariableGlobal) { const bool get_file_globals = true; VariableList *frame_vars = frame->GetVariableList(get_file_globals); if (frame_vars) frame_vars->AppendVariablesIfUnique(variable_list); } ConstString const_name(name); VariableSP variable_sp( variable_list.FindVariable(const_name, value_type)); if (variable_sp) { value_sp = frame->GetValueObjectForFrameVariable(variable_sp, eNoDynamicValues); sb_value.SetSP(value_sp, use_dynamic); } } break; case eValueTypeRegister: // stack frame register value { RegisterContextSP reg_ctx(frame->GetRegisterContext()); if (reg_ctx) { const uint32_t num_regs = reg_ctx->GetRegisterCount(); for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) { const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_idx); if (reg_info && ((reg_info->name && strcasecmp(reg_info->name, name) == 0) || (reg_info->alt_name && strcasecmp(reg_info->alt_name, name) == 0))) { value_sp = ValueObjectRegister::Create(frame, reg_ctx, reg_idx); sb_value.SetSP(value_sp); break; } } } } break; case eValueTypeRegisterSet: // A collection of stack frame register // values { RegisterContextSP reg_ctx(frame->GetRegisterContext()); if (reg_ctx) { const uint32_t num_sets = reg_ctx->GetRegisterSetCount(); for (uint32_t set_idx = 0; set_idx < num_sets; ++set_idx) { const RegisterSet *reg_set = reg_ctx->GetRegisterSet(set_idx); if (reg_set && ((reg_set->name && strcasecmp(reg_set->name, name) == 0) || (reg_set->short_name && strcasecmp(reg_set->short_name, name) == 0))) { value_sp = ValueObjectRegisterSet::Create(frame, reg_ctx, set_idx); sb_value.SetSP(value_sp); break; } } } } break; case eValueTypeConstResult: // constant result variables { ConstString const_name(name); ExpressionVariableSP expr_var_sp( target->GetPersistentVariable(const_name)); if (expr_var_sp) { value_sp = expr_var_sp->GetValueObject(); sb_value.SetSP(value_sp, use_dynamic); } } break; default: break; } } else { if (log) log->Printf("SBFrame::FindValue () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::FindValue () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::FindVariableInScope (name=\"%s\", value_type=%i) " "=> SBValue(%p)", static_cast(frame), name, value_type, static_cast(value_sp.get())); return sb_value; } bool SBFrame::IsEqual(const SBFrame &that) const { lldb::StackFrameSP this_sp = GetFrameSP(); lldb::StackFrameSP that_sp = that.GetFrameSP(); return (this_sp && that_sp && this_sp->GetStackID() == that_sp->GetStackID()); } bool SBFrame::operator==(const SBFrame &rhs) const { return IsEqual(rhs); } bool SBFrame::operator!=(const SBFrame &rhs) const { return !IsEqual(rhs); } SBThread SBFrame::GetThread() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); ThreadSP thread_sp(exe_ctx.GetThreadSP()); SBThread sb_thread(thread_sp); if (log) { SBStream sstr; sb_thread.GetDescription(sstr); log->Printf("SBFrame(%p)::GetThread () => SBThread(%p): %s", static_cast(exe_ctx.GetFramePtr()), static_cast(thread_sp.get()), sstr.GetData()); } return sb_thread; } const char *SBFrame::Disassemble() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); const char *disassembly = nullptr; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { disassembly = frame->Disassemble(); } else { if (log) log->Printf("SBFrame::Disassemble () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::Disassemble () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::Disassemble () => %s", static_cast(frame), disassembly); return disassembly; } SBValueList SBFrame::GetVariables(bool arguments, bool locals, bool statics, bool in_scope_only) { SBValueList value_list; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (frame && target) { lldb::DynamicValueType use_dynamic = frame->CalculateTarget()->GetPreferDynamicValue(); const bool include_runtime_support_values = target ? target->GetDisplayRuntimeSupportValues() : false; SBVariablesOptions options; options.SetIncludeArguments(arguments); options.SetIncludeLocals(locals); options.SetIncludeStatics(statics); options.SetInScopeOnly(in_scope_only); options.SetIncludeRuntimeSupportValues(include_runtime_support_values); options.SetUseDynamic(use_dynamic); value_list = GetVariables(options); } return value_list; } lldb::SBValueList SBFrame::GetVariables(bool arguments, bool locals, bool statics, bool in_scope_only, lldb::DynamicValueType use_dynamic) { std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); Target *target = exe_ctx.GetTargetPtr(); const bool include_runtime_support_values = target ? target->GetDisplayRuntimeSupportValues() : false; SBVariablesOptions options; options.SetIncludeArguments(arguments); options.SetIncludeLocals(locals); options.SetIncludeStatics(statics); options.SetInScopeOnly(in_scope_only); options.SetIncludeRuntimeSupportValues(include_runtime_support_values); options.SetUseDynamic(use_dynamic); return GetVariables(options); } SBValueList SBFrame::GetVariables(const lldb::SBVariablesOptions &options) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBValueList value_list; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); const bool statics = options.GetIncludeStatics(); const bool arguments = options.GetIncludeArguments(); const bool locals = options.GetIncludeLocals(); const bool in_scope_only = options.GetInScopeOnly(); const bool include_runtime_support_values = options.GetIncludeRuntimeSupportValues(); const lldb::DynamicValueType use_dynamic = options.GetUseDynamic(); if (log) log->Printf("SBFrame::GetVariables (arguments=%i, locals=%i, statics=%i, " "in_scope_only=%i runtime=%i dynamic=%i)", arguments, locals, statics, in_scope_only, include_runtime_support_values, use_dynamic); std::set variable_set; Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { size_t i; VariableList *variable_list = nullptr; variable_list = frame->GetVariableList(true); if (variable_list) { const size_t num_variables = variable_list->GetSize(); if (num_variables) { for (i = 0; i < num_variables; ++i) { VariableSP variable_sp(variable_list->GetVariableAtIndex(i)); if (variable_sp) { bool add_variable = false; switch (variable_sp->GetScope()) { case eValueTypeVariableGlobal: case eValueTypeVariableStatic: case eValueTypeVariableThreadLocal: add_variable = statics; break; case eValueTypeVariableArgument: add_variable = arguments; break; case eValueTypeVariableLocal: add_variable = locals; break; default: break; } if (add_variable) { // Only add variables once so we don't end up with duplicates if (variable_set.find(variable_sp) == variable_set.end()) variable_set.insert(variable_sp); else continue; if (in_scope_only && !variable_sp->IsInScope(frame)) continue; ValueObjectSP valobj_sp(frame->GetValueObjectForFrameVariable( variable_sp, eNoDynamicValues)); if (!include_runtime_support_values && valobj_sp != nullptr && valobj_sp->IsRuntimeSupportValue()) continue; SBValue value_sb; value_sb.SetSP(valobj_sp, use_dynamic); value_list.Append(value_sb); } } } } } } else { if (log) log->Printf("SBFrame::GetVariables () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetVariables () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetVariables (...) => SBValueList(%p)", static_cast(frame), static_cast(value_list.opaque_ptr())); return value_list; } SBValueList SBFrame::GetRegisters() { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBValueList value_list; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { RegisterContextSP reg_ctx(frame->GetRegisterContext()); if (reg_ctx) { const uint32_t num_sets = reg_ctx->GetRegisterSetCount(); for (uint32_t set_idx = 0; set_idx < num_sets; ++set_idx) { value_list.Append( ValueObjectRegisterSet::Create(frame, reg_ctx, set_idx)); } } } else { if (log) log->Printf("SBFrame::GetRegisters () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetRegisters () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::GetRegisters () => SBValueList(%p)", static_cast(frame), static_cast(value_list.opaque_ptr())); return value_list; } SBValue SBFrame::FindRegister(const char *name) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); SBValue result; ValueObjectSP value_sp; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { RegisterContextSP reg_ctx(frame->GetRegisterContext()); if (reg_ctx) { const uint32_t num_regs = reg_ctx->GetRegisterCount(); for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) { const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_idx); if (reg_info && ((reg_info->name && strcasecmp(reg_info->name, name) == 0) || (reg_info->alt_name && strcasecmp(reg_info->alt_name, name) == 0))) { value_sp = ValueObjectRegister::Create(frame, reg_ctx, reg_idx); result.SetSP(value_sp); break; } } } } else { if (log) log->Printf("SBFrame::FindRegister () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::FindRegister () => error: process is running"); } } if (log) log->Printf("SBFrame(%p)::FindRegister () => SBValue(%p)", static_cast(frame), static_cast(value_sp.get())); return result; } bool SBFrame::GetDescription(SBStream &description) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); Stream &strm = description.ref(); std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { frame->DumpUsingSettingsFormat(&strm); } else { if (log) log->Printf("SBFrame::GetDescription () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetDescription () => error: process is running"); } } else strm.PutCString("No value"); return true; } SBValue SBFrame::EvaluateExpression(const char *expr) { SBValue result; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (frame && target) { SBExpressionOptions options; lldb::DynamicValueType fetch_dynamic_value = frame->CalculateTarget()->GetPreferDynamicValue(); options.SetFetchDynamicValue(fetch_dynamic_value); options.SetUnwindOnError(true); options.SetIgnoreBreakpoints(true); if (target->GetLanguage() != eLanguageTypeUnknown) options.SetLanguage(target->GetLanguage()); else options.SetLanguage(frame->GetLanguage()); return EvaluateExpression(expr, options); } return result; } SBValue SBFrame::EvaluateExpression(const char *expr, lldb::DynamicValueType fetch_dynamic_value) { SBExpressionOptions options; options.SetFetchDynamicValue(fetch_dynamic_value); options.SetUnwindOnError(true); options.SetIgnoreBreakpoints(true); std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (target && target->GetLanguage() != eLanguageTypeUnknown) options.SetLanguage(target->GetLanguage()); else if (frame) options.SetLanguage(frame->GetLanguage()); return EvaluateExpression(expr, options); } SBValue SBFrame::EvaluateExpression(const char *expr, lldb::DynamicValueType fetch_dynamic_value, bool unwind_on_error) { SBExpressionOptions options; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); options.SetFetchDynamicValue(fetch_dynamic_value); options.SetUnwindOnError(unwind_on_error); options.SetIgnoreBreakpoints(true); StackFrame *frame = exe_ctx.GetFramePtr(); Target *target = exe_ctx.GetTargetPtr(); if (target && target->GetLanguage() != eLanguageTypeUnknown) options.SetLanguage(target->GetLanguage()); else if (frame) options.SetLanguage(frame->GetLanguage()); return EvaluateExpression(expr, options); } lldb::SBValue SBFrame::EvaluateExpression(const char *expr, const SBExpressionOptions &options) { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); #ifndef LLDB_DISABLE_PYTHON Log *expr_log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)); #endif ExpressionResults exe_results = eExpressionSetupError; SBValue expr_result; if (expr == nullptr || expr[0] == '\0') { if (log) log->Printf( "SBFrame::EvaluateExpression called with an empty expression"); return expr_result; } ValueObjectSP expr_value_sp; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); if (log) log->Printf("SBFrame()::EvaluateExpression (expr=\"%s\")...", expr); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { std::unique_ptr stack_trace; if (target->GetDisplayExpressionsInCrashlogs()) { StreamString frame_description; frame->DumpUsingSettingsFormat(&frame_description); stack_trace = llvm::make_unique( "SBFrame::EvaluateExpression (expr = \"%s\", fetch_dynamic_value " "= %u) %s", expr, options.GetFetchDynamicValue(), frame_description.GetData()); } exe_results = target->EvaluateExpression(expr, frame, expr_value_sp, options.ref()); expr_result.SetSP(expr_value_sp, options.GetFetchDynamicValue()); } else { if (log) log->Printf("SBFrame::EvaluateExpression () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf( "SBFrame::EvaluateExpression () => error: process is running"); } } #ifndef LLDB_DISABLE_PYTHON if (expr_log) expr_log->Printf("** [SBFrame::EvaluateExpression] Expression result is " "%s, summary %s **", expr_result.GetValue(), expr_result.GetSummary()); if (log) log->Printf("SBFrame(%p)::EvaluateExpression (expr=\"%s\") => SBValue(%p) " "(execution result=%d)", static_cast(frame), expr, static_cast(expr_value_sp.get()), exe_results); #endif return expr_result; } bool SBFrame::IsInlined() { return static_cast(this)->IsInlined(); } bool SBFrame::IsInlined() const { Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { Block *block = frame->GetSymbolContext(eSymbolContextBlock).block; if (block) return block->GetContainingInlinedBlock() != nullptr; } else { if (log) log->Printf("SBFrame::IsInlined () => error: could not reconstruct " "frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::IsInlined () => error: process is running"); } } return false; } const char *SBFrame::GetFunctionName() { return static_cast(this)->GetFunctionName(); } lldb::LanguageType SBFrame::GuessLanguage() const { std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { return frame->GuessLanguage(); } } } return eLanguageTypeUnknown; } const char *SBFrame::GetFunctionName() const { Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); const char *name = nullptr; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { SymbolContext sc(frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextBlock | eSymbolContextSymbol)); if (sc.block) { Block *inlined_block = sc.block->GetContainingInlinedBlock(); if (inlined_block) { const InlineFunctionInfo *inlined_info = inlined_block->GetInlinedFunctionInfo(); name = inlined_info->GetName(sc.function->GetLanguage()).AsCString(); } } if (name == nullptr) { if (sc.function) name = sc.function->GetName().GetCString(); } if (name == nullptr) { if (sc.symbol) name = sc.symbol->GetName().GetCString(); } } else { if (log) log->Printf("SBFrame::GetFunctionName () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf("SBFrame::GetFunctionName() => error: process is running"); } } return name; } const char *SBFrame::GetDisplayFunctionName() { Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API)); const char *name = nullptr; std::unique_lock lock; ExecutionContext exe_ctx(m_opaque_sp.get(), lock); StackFrame *frame = nullptr; Target *target = exe_ctx.GetTargetPtr(); Process *process = exe_ctx.GetProcessPtr(); if (target && process) { Process::StopLocker stop_locker; if (stop_locker.TryLock(&process->GetRunLock())) { frame = exe_ctx.GetFramePtr(); if (frame) { SymbolContext sc(frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextBlock | eSymbolContextSymbol)); if (sc.block) { Block *inlined_block = sc.block->GetContainingInlinedBlock(); if (inlined_block) { const InlineFunctionInfo *inlined_info = inlined_block->GetInlinedFunctionInfo(); name = inlined_info->GetDisplayName(sc.function->GetLanguage()) .AsCString(); } } if (name == nullptr) { if (sc.function) name = sc.function->GetDisplayName().GetCString(); } if (name == nullptr) { if (sc.symbol) name = sc.symbol->GetDisplayName().GetCString(); } } else { if (log) log->Printf("SBFrame::GetDisplayFunctionName () => error: could not " "reconstruct frame object for this SBFrame."); } } else { if (log) log->Printf( "SBFrame::GetDisplayFunctionName() => error: process is running"); } } return name; }