| //===-- Target.cpp ----------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Target/Target.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Breakpoint/BreakpointResolver.h" |
| #include "lldb/Breakpoint/BreakpointResolverAddress.h" |
| #include "lldb/Breakpoint/BreakpointResolverFileLine.h" |
| #include "lldb/Breakpoint/BreakpointResolverName.h" |
| #include "lldb/Core/Debugger.h" |
| #include "lldb/Core/Event.h" |
| #include "lldb/Core/Log.h" |
| #include "lldb/Core/StreamString.h" |
| #include "lldb/Core/Timer.h" |
| #include "lldb/Core/ValueObject.h" |
| #include "lldb/Host/Host.h" |
| #include "lldb/lldb-private-log.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/StackFrame.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //---------------------------------------------------------------------- |
| // Target constructor |
| //---------------------------------------------------------------------- |
| Target::Target(Debugger &debugger) : |
| Broadcaster("lldb.target"), |
| TargetInstanceSettings (*GetSettingsController()), |
| m_debugger (debugger), |
| m_mutex (Mutex::eMutexTypeRecursive), |
| m_images(), |
| m_section_load_list (), |
| m_breakpoint_list (false), |
| m_internal_breakpoint_list (true), |
| m_process_sp(), |
| m_search_filter_sp(), |
| m_image_search_paths (ImageSearchPathsChanged, this), |
| m_scratch_ast_context_ap (NULL), |
| m_persistent_variables () |
| { |
| SetEventName (eBroadcastBitBreakpointChanged, "breakpoint-changed"); |
| SetEventName (eBroadcastBitModulesLoaded, "modules-loaded"); |
| SetEventName (eBroadcastBitModulesUnloaded, "modules-unloaded"); |
| |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); |
| if (log) |
| log->Printf ("%p Target::Target()", this); |
| } |
| |
| //---------------------------------------------------------------------- |
| // Destructor |
| //---------------------------------------------------------------------- |
| Target::~Target() |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); |
| if (log) |
| log->Printf ("%p Target::~Target()", this); |
| DeleteCurrentProcess (); |
| } |
| |
| void |
| Target::Dump (Stream *s, lldb::DescriptionLevel description_level) |
| { |
| // s->Printf("%.*p: ", (int)sizeof(void*) * 2, this); |
| if (description_level != lldb::eDescriptionLevelBrief) |
| { |
| s->Indent(); |
| s->PutCString("Target\n"); |
| s->IndentMore(); |
| m_images.Dump(s); |
| m_breakpoint_list.Dump(s); |
| m_internal_breakpoint_list.Dump(s); |
| s->IndentLess(); |
| } |
| else |
| { |
| s->PutCString (GetExecutableModule()->GetFileSpec().GetFilename().GetCString()); |
| } |
| } |
| |
| void |
| Target::DeleteCurrentProcess () |
| { |
| if (m_process_sp.get()) |
| { |
| m_section_load_list.Clear(); |
| if (m_process_sp->IsAlive()) |
| m_process_sp->Destroy(); |
| |
| m_process_sp->Finalize(); |
| |
| // Do any cleanup of the target we need to do between process instances. |
| // NB It is better to do this before destroying the process in case the |
| // clean up needs some help from the process. |
| m_breakpoint_list.ClearAllBreakpointSites(); |
| m_internal_breakpoint_list.ClearAllBreakpointSites(); |
| m_process_sp.reset(); |
| } |
| } |
| |
| const lldb::ProcessSP & |
| Target::CreateProcess (Listener &listener, const char *plugin_name) |
| { |
| DeleteCurrentProcess (); |
| m_process_sp.reset(Process::FindPlugin(*this, plugin_name, listener)); |
| return m_process_sp; |
| } |
| |
| const lldb::ProcessSP & |
| Target::GetProcessSP () const |
| { |
| return m_process_sp; |
| } |
| |
| lldb::TargetSP |
| Target::GetSP() |
| { |
| return m_debugger.GetTargetList().GetTargetSP(this); |
| } |
| |
| BreakpointList & |
| Target::GetBreakpointList(bool internal) |
| { |
| if (internal) |
| return m_internal_breakpoint_list; |
| else |
| return m_breakpoint_list; |
| } |
| |
| const BreakpointList & |
| Target::GetBreakpointList(bool internal) const |
| { |
| if (internal) |
| return m_internal_breakpoint_list; |
| else |
| return m_breakpoint_list; |
| } |
| |
| BreakpointSP |
| Target::GetBreakpointByID (break_id_t break_id) |
| { |
| BreakpointSP bp_sp; |
| |
| if (LLDB_BREAK_ID_IS_INTERNAL (break_id)) |
| bp_sp = m_internal_breakpoint_list.FindBreakpointByID (break_id); |
| else |
| bp_sp = m_breakpoint_list.FindBreakpointByID (break_id); |
| |
| return bp_sp; |
| } |
| |
| BreakpointSP |
| Target::CreateBreakpoint (const FileSpec *containingModule, const FileSpec &file, uint32_t line_no, bool check_inlines, bool internal) |
| { |
| SearchFilterSP filter_sp(GetSearchFilterForModule (containingModule)); |
| BreakpointResolverSP resolver_sp(new BreakpointResolverFileLine (NULL, file, line_no, check_inlines)); |
| return CreateBreakpoint (filter_sp, resolver_sp, internal); |
| } |
| |
| |
| BreakpointSP |
| Target::CreateBreakpoint (lldb::addr_t addr, bool internal) |
| { |
| Address so_addr; |
| // Attempt to resolve our load address if possible, though it is ok if |
| // it doesn't resolve to section/offset. |
| |
| // Try and resolve as a load address if possible |
| m_section_load_list.ResolveLoadAddress(addr, so_addr); |
| if (!so_addr.IsValid()) |
| { |
| // The address didn't resolve, so just set this as an absolute address |
| so_addr.SetOffset (addr); |
| } |
| BreakpointSP bp_sp (CreateBreakpoint(so_addr, internal)); |
| return bp_sp; |
| } |
| |
| BreakpointSP |
| Target::CreateBreakpoint (Address &addr, bool internal) |
| { |
| TargetSP target_sp = this->GetSP(); |
| SearchFilterSP filter_sp(new SearchFilter (target_sp)); |
| BreakpointResolverSP resolver_sp (new BreakpointResolverAddress (NULL, addr)); |
| return CreateBreakpoint (filter_sp, resolver_sp, internal); |
| } |
| |
| BreakpointSP |
| Target::CreateBreakpoint (FileSpec *containingModule, const char *func_name, uint32_t func_name_type_mask, bool internal) |
| { |
| BreakpointSP bp_sp; |
| if (func_name) |
| { |
| SearchFilterSP filter_sp(GetSearchFilterForModule (containingModule)); |
| BreakpointResolverSP resolver_sp (new BreakpointResolverName (NULL, func_name, func_name_type_mask, Breakpoint::Exact)); |
| bp_sp = CreateBreakpoint (filter_sp, resolver_sp, internal); |
| } |
| return bp_sp; |
| } |
| |
| |
| SearchFilterSP |
| Target::GetSearchFilterForModule (const FileSpec *containingModule) |
| { |
| SearchFilterSP filter_sp; |
| lldb::TargetSP target_sp = this->GetSP(); |
| if (containingModule != NULL) |
| { |
| // TODO: We should look into sharing module based search filters |
| // across many breakpoints like we do for the simple target based one |
| filter_sp.reset (new SearchFilterByModule (target_sp, *containingModule)); |
| } |
| else |
| { |
| if (m_search_filter_sp.get() == NULL) |
| m_search_filter_sp.reset (new SearchFilter (target_sp)); |
| filter_sp = m_search_filter_sp; |
| } |
| return filter_sp; |
| } |
| |
| BreakpointSP |
| Target::CreateBreakpoint (FileSpec *containingModule, RegularExpression &func_regex, bool internal) |
| { |
| SearchFilterSP filter_sp(GetSearchFilterForModule (containingModule)); |
| BreakpointResolverSP resolver_sp(new BreakpointResolverName (NULL, func_regex)); |
| |
| return CreateBreakpoint (filter_sp, resolver_sp, internal); |
| } |
| |
| BreakpointSP |
| Target::CreateBreakpoint (SearchFilterSP &filter_sp, BreakpointResolverSP &resolver_sp, bool internal) |
| { |
| BreakpointSP bp_sp; |
| if (filter_sp && resolver_sp) |
| { |
| bp_sp.reset(new Breakpoint (*this, filter_sp, resolver_sp)); |
| resolver_sp->SetBreakpoint (bp_sp.get()); |
| |
| if (internal) |
| m_internal_breakpoint_list.Add (bp_sp, false); |
| else |
| m_breakpoint_list.Add (bp_sp, true); |
| |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| { |
| StreamString s; |
| bp_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose); |
| log->Printf ("Target::%s (internal = %s) => break_id = %s\n", __FUNCTION__, internal ? "yes" : "no", s.GetData()); |
| } |
| |
| bp_sp->ResolveBreakpoint(); |
| } |
| |
| if (!internal && bp_sp) |
| { |
| m_last_created_breakpoint = bp_sp; |
| } |
| |
| return bp_sp; |
| } |
| |
| void |
| Target::RemoveAllBreakpoints (bool internal_also) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (internal_also = %s)\n", __FUNCTION__, internal_also ? "yes" : "no"); |
| |
| m_breakpoint_list.RemoveAll (true); |
| if (internal_also) |
| m_internal_breakpoint_list.RemoveAll (false); |
| |
| m_last_created_breakpoint.reset(); |
| } |
| |
| void |
| Target::DisableAllBreakpoints (bool internal_also) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (internal_also = %s)\n", __FUNCTION__, internal_also ? "yes" : "no"); |
| |
| m_breakpoint_list.SetEnabledAll (false); |
| if (internal_also) |
| m_internal_breakpoint_list.SetEnabledAll (false); |
| } |
| |
| void |
| Target::EnableAllBreakpoints (bool internal_also) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (internal_also = %s)\n", __FUNCTION__, internal_also ? "yes" : "no"); |
| |
| m_breakpoint_list.SetEnabledAll (true); |
| if (internal_also) |
| m_internal_breakpoint_list.SetEnabledAll (true); |
| } |
| |
| bool |
| Target::RemoveBreakpointByID (break_id_t break_id) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (break_id = %i, internal = %s)\n", __FUNCTION__, break_id, LLDB_BREAK_ID_IS_INTERNAL (break_id) ? "yes" : "no"); |
| |
| if (DisableBreakpointByID (break_id)) |
| { |
| if (LLDB_BREAK_ID_IS_INTERNAL (break_id)) |
| m_internal_breakpoint_list.Remove(break_id, false); |
| else |
| { |
| if (m_last_created_breakpoint) |
| { |
| if (m_last_created_breakpoint->GetID() == break_id) |
| m_last_created_breakpoint.reset(); |
| } |
| m_breakpoint_list.Remove(break_id, true); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| bool |
| Target::DisableBreakpointByID (break_id_t break_id) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (break_id = %i, internal = %s)\n", __FUNCTION__, break_id, LLDB_BREAK_ID_IS_INTERNAL (break_id) ? "yes" : "no"); |
| |
| BreakpointSP bp_sp; |
| |
| if (LLDB_BREAK_ID_IS_INTERNAL (break_id)) |
| bp_sp = m_internal_breakpoint_list.FindBreakpointByID (break_id); |
| else |
| bp_sp = m_breakpoint_list.FindBreakpointByID (break_id); |
| if (bp_sp) |
| { |
| bp_sp->SetEnabled (false); |
| return true; |
| } |
| return false; |
| } |
| |
| bool |
| Target::EnableBreakpointByID (break_id_t break_id) |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); |
| if (log) |
| log->Printf ("Target::%s (break_id = %i, internal = %s)\n", |
| __FUNCTION__, |
| break_id, |
| LLDB_BREAK_ID_IS_INTERNAL (break_id) ? "yes" : "no"); |
| |
| BreakpointSP bp_sp; |
| |
| if (LLDB_BREAK_ID_IS_INTERNAL (break_id)) |
| bp_sp = m_internal_breakpoint_list.FindBreakpointByID (break_id); |
| else |
| bp_sp = m_breakpoint_list.FindBreakpointByID (break_id); |
| |
| if (bp_sp) |
| { |
| bp_sp->SetEnabled (true); |
| return true; |
| } |
| return false; |
| } |
| |
| ModuleSP |
| Target::GetExecutableModule () |
| { |
| ModuleSP executable_sp; |
| if (m_images.GetSize() > 0) |
| executable_sp = m_images.GetModuleAtIndex(0); |
| return executable_sp; |
| } |
| |
| void |
| Target::SetExecutableModule (ModuleSP& executable_sp, bool get_dependent_files) |
| { |
| m_images.Clear(); |
| m_scratch_ast_context_ap.reset(); |
| |
| if (executable_sp.get()) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "Target::SetExecutableModule (executable = '%s/%s')", |
| executable_sp->GetFileSpec().GetDirectory().AsCString(), |
| executable_sp->GetFileSpec().GetFilename().AsCString()); |
| |
| m_images.Append(executable_sp); // The first image is our exectuable file |
| |
| ArchSpec exe_arch = executable_sp->GetArchitecture(); |
| // If we haven't set an architecture yet, reset our architecture based on what we found in the executable module. |
| if (!m_arch_spec.IsValid()) |
| m_arch_spec = exe_arch; |
| |
| FileSpecList dependent_files; |
| ObjectFile * executable_objfile = executable_sp->GetObjectFile(); |
| if (executable_objfile == NULL) |
| { |
| |
| FileSpec bundle_executable(executable_sp->GetFileSpec()); |
| if (Host::ResolveExecutableInBundle (bundle_executable)) |
| { |
| ModuleSP bundle_exe_module_sp(GetSharedModule(bundle_executable, |
| exe_arch)); |
| SetExecutableModule (bundle_exe_module_sp, get_dependent_files); |
| if (bundle_exe_module_sp->GetObjectFile() != NULL) |
| executable_sp = bundle_exe_module_sp; |
| return; |
| } |
| } |
| |
| if (executable_objfile) |
| { |
| executable_objfile->GetDependentModules(dependent_files); |
| for (uint32_t i=0; i<dependent_files.GetSize(); i++) |
| { |
| ModuleSP image_module_sp(GetSharedModule(dependent_files.GetFileSpecPointerAtIndex(i), |
| exe_arch)); |
| if (image_module_sp.get()) |
| { |
| //image_module_sp->Dump(&s);// REMOVE THIS, DEBUG ONLY |
| ObjectFile *objfile = image_module_sp->GetObjectFile(); |
| if (objfile) |
| objfile->GetDependentModules(dependent_files); |
| } |
| } |
| } |
| |
| // Now see if we know the target triple, and if so, create our scratch AST context: |
| if (m_arch_spec.IsValid()) |
| { |
| m_scratch_ast_context_ap.reset (new ClangASTContext(m_arch_spec.GetTriple().str().c_str())); |
| } |
| } |
| |
| UpdateInstanceName(); |
| } |
| |
| |
| bool |
| Target::SetArchitecture (const ArchSpec &arch_spec) |
| { |
| if (m_arch_spec == arch_spec) |
| { |
| // If we're setting the architecture to our current architecture, we |
| // don't need to do anything. |
| return true; |
| } |
| else if (!m_arch_spec.IsValid()) |
| { |
| // If we haven't got a valid arch spec, then we just need to set it. |
| m_arch_spec = arch_spec; |
| return true; |
| } |
| else |
| { |
| // If we have an executable file, try to reset the executable to the desired architecture |
| m_arch_spec = arch_spec; |
| ModuleSP executable_sp = GetExecutableModule (); |
| m_images.Clear(); |
| m_scratch_ast_context_ap.reset(); |
| // Need to do something about unsetting breakpoints. |
| |
| if (executable_sp) |
| { |
| FileSpec exec_file_spec = executable_sp->GetFileSpec(); |
| Error error = ModuleList::GetSharedModule(exec_file_spec, |
| arch_spec, |
| NULL, |
| NULL, |
| 0, |
| executable_sp, |
| NULL, |
| NULL); |
| |
| if (!error.Fail() && executable_sp) |
| { |
| SetExecutableModule (executable_sp, true); |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| else |
| { |
| return false; |
| } |
| } |
| } |
| |
| void |
| Target::ModuleAdded (ModuleSP &module_sp) |
| { |
| // A module is being added to this target for the first time |
| ModuleList module_list; |
| module_list.Append(module_sp); |
| ModulesDidLoad (module_list); |
| } |
| |
| void |
| Target::ModuleUpdated (ModuleSP &old_module_sp, ModuleSP &new_module_sp) |
| { |
| // A module is being added to this target for the first time |
| ModuleList module_list; |
| module_list.Append (old_module_sp); |
| ModulesDidUnload (module_list); |
| module_list.Clear (); |
| module_list.Append (new_module_sp); |
| ModulesDidLoad (module_list); |
| } |
| |
| void |
| Target::ModulesDidLoad (ModuleList &module_list) |
| { |
| m_breakpoint_list.UpdateBreakpoints (module_list, true); |
| // TODO: make event data that packages up the module_list |
| BroadcastEvent (eBroadcastBitModulesLoaded, NULL); |
| } |
| |
| void |
| Target::ModulesDidUnload (ModuleList &module_list) |
| { |
| m_breakpoint_list.UpdateBreakpoints (module_list, false); |
| |
| // Remove the images from the target image list |
| m_images.Remove(module_list); |
| |
| // TODO: make event data that packages up the module_list |
| BroadcastEvent (eBroadcastBitModulesUnloaded, NULL); |
| } |
| |
| size_t |
| Target::ReadMemoryFromFileCache (const Address& addr, void *dst, size_t dst_len, Error &error) |
| { |
| const Section *section = addr.GetSection(); |
| if (section && section->GetModule()) |
| { |
| ObjectFile *objfile = section->GetModule()->GetObjectFile(); |
| if (objfile) |
| { |
| size_t bytes_read = section->ReadSectionDataFromObjectFile (objfile, |
| addr.GetOffset(), |
| dst, |
| dst_len); |
| if (bytes_read > 0) |
| return bytes_read; |
| else |
| error.SetErrorStringWithFormat("error reading data from section %s", section->GetName().GetCString()); |
| } |
| else |
| { |
| error.SetErrorString("address isn't from a object file"); |
| } |
| } |
| else |
| { |
| error.SetErrorString("address doesn't contain a section that points to a section in a object file"); |
| } |
| return 0; |
| } |
| |
| size_t |
| Target::ReadMemory (const Address& addr, bool prefer_file_cache, void *dst, size_t dst_len, Error &error) |
| { |
| error.Clear(); |
| |
| bool process_is_valid = m_process_sp && m_process_sp->IsAlive(); |
| |
| size_t bytes_read = 0; |
| Address resolved_addr(addr); |
| if (!resolved_addr.IsSectionOffset()) |
| { |
| if (process_is_valid) |
| { |
| m_section_load_list.ResolveLoadAddress (addr.GetOffset(), resolved_addr); |
| } |
| else |
| { |
| m_images.ResolveFileAddress(addr.GetOffset(), resolved_addr); |
| } |
| } |
| |
| if (prefer_file_cache) |
| { |
| bytes_read = ReadMemoryFromFileCache (resolved_addr, dst, dst_len, error); |
| if (bytes_read > 0) |
| return bytes_read; |
| } |
| |
| if (process_is_valid) |
| { |
| lldb::addr_t load_addr = resolved_addr.GetLoadAddress (this); |
| if (load_addr == LLDB_INVALID_ADDRESS) |
| { |
| if (resolved_addr.GetModule() && resolved_addr.GetModule()->GetFileSpec()) |
| error.SetErrorStringWithFormat("%s[0x%llx] can't be resolved, %s in not currently loaded.\n", |
| resolved_addr.GetModule()->GetFileSpec().GetFilename().AsCString(), |
| resolved_addr.GetFileAddress()); |
| else |
| error.SetErrorStringWithFormat("0x%llx can't be resolved.\n", resolved_addr.GetFileAddress()); |
| } |
| else |
| { |
| bytes_read = m_process_sp->ReadMemory(load_addr, dst, dst_len, error); |
| if (bytes_read != dst_len) |
| { |
| if (error.Success()) |
| { |
| if (bytes_read == 0) |
| error.SetErrorStringWithFormat("Read memory from 0x%llx failed.\n", load_addr); |
| else |
| error.SetErrorStringWithFormat("Only %zu of %zu bytes were read from memory at 0x%llx.\n", bytes_read, dst_len, load_addr); |
| } |
| } |
| if (bytes_read) |
| return bytes_read; |
| // If the address is not section offset we have an address that |
| // doesn't resolve to any address in any currently loaded shared |
| // libaries and we failed to read memory so there isn't anything |
| // more we can do. If it is section offset, we might be able to |
| // read cached memory from the object file. |
| if (!resolved_addr.IsSectionOffset()) |
| return 0; |
| } |
| } |
| |
| if (!prefer_file_cache) |
| { |
| // If we didn't already try and read from the object file cache, then |
| // try it after failing to read from the process. |
| return ReadMemoryFromFileCache (resolved_addr, dst, dst_len, error); |
| } |
| return 0; |
| } |
| |
| |
| ModuleSP |
| Target::GetSharedModule |
| ( |
| const FileSpec& file_spec, |
| const ArchSpec& arch, |
| const lldb_private::UUID *uuid_ptr, |
| const ConstString *object_name, |
| off_t object_offset, |
| Error *error_ptr |
| ) |
| { |
| // Don't pass in the UUID so we can tell if we have a stale value in our list |
| ModuleSP old_module_sp; // This will get filled in if we have a new version of the library |
| bool did_create_module = false; |
| ModuleSP module_sp; |
| |
| // If there are image search path entries, try to use them first to acquire a suitable image. |
| |
| Error error; |
| |
| if (m_image_search_paths.GetSize()) |
| { |
| FileSpec transformed_spec; |
| if (m_image_search_paths.RemapPath (file_spec.GetDirectory(), transformed_spec.GetDirectory())) |
| { |
| transformed_spec.GetFilename() = file_spec.GetFilename(); |
| error = ModuleList::GetSharedModule (transformed_spec, arch, uuid_ptr, object_name, object_offset, module_sp, &old_module_sp, &did_create_module); |
| } |
| } |
| |
| // If a module hasn't been found yet, use the unmodified path. |
| |
| if (!module_sp) |
| { |
| error = (ModuleList::GetSharedModule (file_spec, arch, uuid_ptr, object_name, object_offset, module_sp, &old_module_sp, &did_create_module)); |
| } |
| |
| if (module_sp) |
| { |
| m_images.Append (module_sp); |
| if (did_create_module) |
| { |
| if (old_module_sp && m_images.GetIndexForModule (old_module_sp.get()) != LLDB_INVALID_INDEX32) |
| ModuleUpdated(old_module_sp, module_sp); |
| else |
| ModuleAdded(module_sp); |
| } |
| } |
| if (error_ptr) |
| *error_ptr = error; |
| return module_sp; |
| } |
| |
| |
| Target * |
| Target::CalculateTarget () |
| { |
| return this; |
| } |
| |
| Process * |
| Target::CalculateProcess () |
| { |
| return NULL; |
| } |
| |
| Thread * |
| Target::CalculateThread () |
| { |
| return NULL; |
| } |
| |
| StackFrame * |
| Target::CalculateStackFrame () |
| { |
| return NULL; |
| } |
| |
| void |
| Target::CalculateExecutionContext (ExecutionContext &exe_ctx) |
| { |
| exe_ctx.target = this; |
| exe_ctx.process = NULL; // Do NOT fill in process... |
| exe_ctx.thread = NULL; |
| exe_ctx.frame = NULL; |
| } |
| |
| PathMappingList & |
| Target::GetImageSearchPathList () |
| { |
| return m_image_search_paths; |
| } |
| |
| void |
| Target::ImageSearchPathsChanged |
| ( |
| const PathMappingList &path_list, |
| void *baton |
| ) |
| { |
| Target *target = (Target *)baton; |
| if (target->m_images.GetSize() > 1) |
| { |
| ModuleSP exe_module_sp (target->GetExecutableModule()); |
| if (exe_module_sp) |
| { |
| target->m_images.Clear(); |
| target->SetExecutableModule (exe_module_sp, true); |
| } |
| } |
| } |
| |
| ClangASTContext * |
| Target::GetScratchClangASTContext() |
| { |
| return m_scratch_ast_context_ap.get(); |
| } |
| |
| void |
| Target::Initialize () |
| { |
| UserSettingsControllerSP &usc = GetSettingsController(); |
| usc.reset (new SettingsController); |
| UserSettingsController::InitializeSettingsController (usc, |
| SettingsController::global_settings_table, |
| SettingsController::instance_settings_table); |
| } |
| |
| void |
| Target::Terminate () |
| { |
| UserSettingsControllerSP &usc = GetSettingsController(); |
| UserSettingsController::FinalizeSettingsController (usc); |
| usc.reset(); |
| } |
| |
| UserSettingsControllerSP & |
| Target::GetSettingsController () |
| { |
| static UserSettingsControllerSP g_settings_controller; |
| return g_settings_controller; |
| } |
| |
| ArchSpec |
| Target::GetDefaultArchitecture () |
| { |
| lldb::UserSettingsControllerSP settings_controller_sp (GetSettingsController()); |
| |
| if (settings_controller_sp) |
| return static_cast<Target::SettingsController *>(settings_controller_sp.get())->GetArchitecture (); |
| return ArchSpec(); |
| } |
| |
| void |
| Target::SetDefaultArchitecture (const ArchSpec& arch) |
| { |
| lldb::UserSettingsControllerSP settings_controller_sp (GetSettingsController()); |
| |
| if (settings_controller_sp) |
| static_cast<Target::SettingsController *>(settings_controller_sp.get())->GetArchitecture () = arch; |
| } |
| |
| Target * |
| Target::GetTargetFromContexts (const ExecutionContext *exe_ctx_ptr, const SymbolContext *sc_ptr) |
| { |
| // The target can either exist in the "process" of ExecutionContext, or in |
| // the "target_sp" member of SymbolContext. This accessor helper function |
| // will get the target from one of these locations. |
| |
| Target *target = NULL; |
| if (sc_ptr != NULL) |
| target = sc_ptr->target_sp.get(); |
| if (target == NULL) |
| { |
| if (exe_ctx_ptr != NULL && exe_ctx_ptr->process != NULL) |
| target = &exe_ctx_ptr->process->GetTarget(); |
| } |
| return target; |
| } |
| |
| |
| void |
| Target::UpdateInstanceName () |
| { |
| StreamString sstr; |
| |
| ModuleSP module_sp = GetExecutableModule(); |
| if (module_sp) |
| { |
| sstr.Printf ("%s_%s", |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| module_sp->GetArchitecture().GetArchitectureName()); |
| GetSettingsController()->RenameInstanceSettings (GetInstanceName().AsCString(), |
| sstr.GetData()); |
| } |
| } |
| |
| const char * |
| Target::GetExpressionPrefixContentsAsCString () |
| { |
| return m_expr_prefix_contents.c_str(); |
| } |
| |
| ExecutionResults |
| Target::EvaluateExpression |
| ( |
| const char *expr_cstr, |
| StackFrame *frame, |
| bool unwind_on_error, |
| bool keep_in_memory, |
| lldb::ValueObjectSP &result_valobj_sp |
| ) |
| { |
| ExecutionResults execution_results = eExecutionSetupError; |
| |
| result_valobj_sp.reset(); |
| |
| ExecutionContext exe_ctx; |
| if (frame) |
| { |
| frame->CalculateExecutionContext(exe_ctx); |
| Error error; |
| const uint32_t expr_path_options = StackFrame::eExpressionPathOptionCheckPtrVsMember | |
| StackFrame::eExpressionPathOptionsNoFragileObjcIvar; |
| result_valobj_sp = frame->GetValueForVariableExpressionPath (expr_cstr, expr_path_options, error); |
| } |
| else if (m_process_sp) |
| { |
| m_process_sp->CalculateExecutionContext(exe_ctx); |
| } |
| else |
| { |
| CalculateExecutionContext(exe_ctx); |
| } |
| |
| if (result_valobj_sp) |
| { |
| execution_results = eExecutionCompleted; |
| // We got a result from the frame variable expression path above... |
| ConstString persistent_variable_name (m_persistent_variables.GetNextPersistentVariableName()); |
| |
| lldb::ValueObjectSP const_valobj_sp; |
| |
| // Check in case our value is already a constant value |
| if (result_valobj_sp->GetIsConstant()) |
| { |
| const_valobj_sp = result_valobj_sp; |
| const_valobj_sp->SetName (persistent_variable_name); |
| } |
| else |
| const_valobj_sp = result_valobj_sp->CreateConstantValue (exe_ctx.GetBestExecutionContextScope(), |
| persistent_variable_name); |
| |
| lldb::ValueObjectSP live_valobj_sp = result_valobj_sp; |
| |
| result_valobj_sp = const_valobj_sp; |
| |
| ClangExpressionVariableSP clang_expr_variable_sp(m_persistent_variables.CreatePersistentVariable(result_valobj_sp)); |
| assert (clang_expr_variable_sp.get()); |
| |
| // Set flags and live data as appropriate |
| |
| const Value &result_value = live_valobj_sp->GetValue(); |
| |
| switch (result_value.GetValueType()) |
| { |
| case Value::eValueTypeHostAddress: |
| case Value::eValueTypeFileAddress: |
| // we don't do anything with these for now |
| break; |
| case Value::eValueTypeScalar: |
| clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVIsLLDBAllocated; |
| clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVNeedsAllocation; |
| break; |
| case Value::eValueTypeLoadAddress: |
| clang_expr_variable_sp->m_live_sp = live_valobj_sp; |
| clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVIsProgramReference; |
| break; |
| } |
| } |
| else |
| { |
| // Make sure we aren't just trying to see the value of a persistent |
| // variable (something like "$0") |
| lldb::ClangExpressionVariableSP persistent_var_sp; |
| // Only check for persistent variables the expression starts with a '$' |
| if (expr_cstr[0] == '$') |
| persistent_var_sp = m_persistent_variables.GetVariable (expr_cstr); |
| |
| if (persistent_var_sp) |
| { |
| result_valobj_sp = persistent_var_sp->GetValueObject (); |
| execution_results = eExecutionCompleted; |
| } |
| else |
| { |
| const char *prefix = GetExpressionPrefixContentsAsCString(); |
| |
| execution_results = ClangUserExpression::Evaluate (exe_ctx, |
| unwind_on_error, |
| keep_in_memory, |
| expr_cstr, |
| prefix, |
| result_valobj_sp); |
| } |
| } |
| return execution_results; |
| } |
| |
| //-------------------------------------------------------------- |
| // class Target::SettingsController |
| //-------------------------------------------------------------- |
| |
| Target::SettingsController::SettingsController () : |
| UserSettingsController ("target", Debugger::GetSettingsController()), |
| m_default_architecture () |
| { |
| m_default_settings.reset (new TargetInstanceSettings (*this, false, |
| InstanceSettings::GetDefaultName().AsCString())); |
| } |
| |
| Target::SettingsController::~SettingsController () |
| { |
| } |
| |
| lldb::InstanceSettingsSP |
| Target::SettingsController::CreateInstanceSettings (const char *instance_name) |
| { |
| TargetInstanceSettings *new_settings = new TargetInstanceSettings (*GetSettingsController(), |
| false, |
| instance_name); |
| lldb::InstanceSettingsSP new_settings_sp (new_settings); |
| return new_settings_sp; |
| } |
| |
| |
| #define TSC_DEFAULT_ARCH "default-arch" |
| #define TSC_EXPR_PREFIX "expr-prefix" |
| #define TSC_EXEC_LEVEL "execution-level" |
| #define TSC_EXEC_MODE "execution-mode" |
| #define TSC_EXEC_OS_TYPE "execution-os-type" |
| |
| |
| static const ConstString & |
| GetSettingNameForDefaultArch () |
| { |
| static ConstString g_const_string (TSC_DEFAULT_ARCH); |
| |
| return g_const_string; |
| } |
| |
| static const ConstString & |
| GetSettingNameForExpressionPrefix () |
| { |
| static ConstString g_const_string (TSC_EXPR_PREFIX); |
| return g_const_string; |
| } |
| |
| static const ConstString & |
| GetSettingNameForExecutionLevel () |
| { |
| static ConstString g_const_string (TSC_EXEC_LEVEL); |
| return g_const_string; |
| } |
| |
| static const ConstString & |
| GetSettingNameForExecutionMode () |
| { |
| static ConstString g_const_string (TSC_EXEC_MODE); |
| return g_const_string; |
| } |
| |
| static const ConstString & |
| GetSettingNameForExecutionOSType () |
| { |
| static ConstString g_const_string (TSC_EXEC_OS_TYPE); |
| return g_const_string; |
| } |
| |
| |
| bool |
| Target::SettingsController::SetGlobalVariable (const ConstString &var_name, |
| const char *index_value, |
| const char *value, |
| const SettingEntry &entry, |
| const lldb::VarSetOperationType op, |
| Error&err) |
| { |
| if (var_name == GetSettingNameForDefaultArch()) |
| { |
| m_default_architecture.SetTriple (value); |
| if (!m_default_architecture.IsValid()) |
| err.SetErrorStringWithFormat ("'%s' is not a valid architecture or triple.", value); |
| } |
| return true; |
| } |
| |
| |
| bool |
| Target::SettingsController::GetGlobalVariable (const ConstString &var_name, |
| StringList &value, |
| Error &err) |
| { |
| if (var_name == GetSettingNameForDefaultArch()) |
| { |
| // If the arch is invalid (the default), don't show a string for it |
| if (m_default_architecture.IsValid()) |
| value.AppendString (m_default_architecture.GetArchitectureName()); |
| return true; |
| } |
| else |
| err.SetErrorStringWithFormat ("unrecognized variable name '%s'", var_name.AsCString()); |
| |
| return false; |
| } |
| |
| //-------------------------------------------------------------- |
| // class TargetInstanceSettings |
| //-------------------------------------------------------------- |
| |
| TargetInstanceSettings::TargetInstanceSettings |
| ( |
| UserSettingsController &owner, |
| bool live_instance, |
| const char *name |
| ) : |
| InstanceSettings (owner, name ? name : InstanceSettings::InvalidName().AsCString(), live_instance), |
| m_expr_prefix_path (), |
| m_expr_prefix_contents (), |
| m_execution_level (eExecutionLevelAuto), |
| m_execution_mode (eExecutionModeAuto), |
| m_execution_os_type (eExecutionOSTypeAuto) |
| { |
| // CopyInstanceSettings is a pure virtual function in InstanceSettings; it therefore cannot be called |
| // until the vtables for TargetInstanceSettings are properly set up, i.e. AFTER all the initializers. |
| // For this reason it has to be called here, rather than in the initializer or in the parent constructor. |
| // This is true for CreateInstanceName() too. |
| |
| if (GetInstanceName () == InstanceSettings::InvalidName()) |
| { |
| ChangeInstanceName (std::string (CreateInstanceName().AsCString())); |
| m_owner.RegisterInstanceSettings (this); |
| } |
| |
| if (live_instance) |
| { |
| const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); |
| CopyInstanceSettings (pending_settings,false); |
| //m_owner.RemovePendingSettings (m_instance_name); |
| } |
| } |
| |
| TargetInstanceSettings::TargetInstanceSettings (const TargetInstanceSettings &rhs) : |
| InstanceSettings (*Target::GetSettingsController(), CreateInstanceName().AsCString()) |
| { |
| if (m_instance_name != InstanceSettings::GetDefaultName()) |
| { |
| const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); |
| CopyInstanceSettings (pending_settings,false); |
| //m_owner.RemovePendingSettings (m_instance_name); |
| } |
| } |
| |
| TargetInstanceSettings::~TargetInstanceSettings () |
| { |
| } |
| |
| TargetInstanceSettings& |
| TargetInstanceSettings::operator= (const TargetInstanceSettings &rhs) |
| { |
| if (this != &rhs) |
| { |
| } |
| |
| return *this; |
| } |
| |
| void |
| TargetInstanceSettings::UpdateInstanceSettingsVariable (const ConstString &var_name, |
| const char *index_value, |
| const char *value, |
| const ConstString &instance_name, |
| const SettingEntry &entry, |
| lldb::VarSetOperationType op, |
| Error &err, |
| bool pending) |
| { |
| int new_enum = -1; |
| |
| if (var_name == GetSettingNameForExpressionPrefix ()) |
| { |
| switch (op) |
| { |
| default: |
| err.SetErrorToGenericError (); |
| err.SetErrorString ("Unrecognized operation. Cannot update value.\n"); |
| return; |
| case lldb::eVarSetOperationAssign: |
| { |
| FileSpec file_spec(value, true); |
| |
| if (!file_spec.Exists()) |
| { |
| err.SetErrorToGenericError (); |
| err.SetErrorStringWithFormat ("%s does not exist.\n", value); |
| return; |
| } |
| |
| DataBufferSP data_sp (file_spec.ReadFileContents()); |
| |
| if (!data_sp && data_sp->GetByteSize() == 0) |
| { |
| err.SetErrorToGenericError (); |
| err.SetErrorStringWithFormat ("Couldn't read from %s\n", value); |
| return; |
| } |
| |
| m_expr_prefix_path = value; |
| m_expr_prefix_contents.assign(reinterpret_cast<const char *>(data_sp->GetBytes()), data_sp->GetByteSize()); |
| } |
| return; |
| case lldb::eVarSetOperationAppend: |
| err.SetErrorToGenericError (); |
| err.SetErrorString ("Cannot append to a path.\n"); |
| return; |
| case lldb::eVarSetOperationClear: |
| m_expr_prefix_path.clear (); |
| m_expr_prefix_contents.clear (); |
| return; |
| } |
| } |
| else if (var_name == GetSettingNameForExecutionLevel ()) |
| { |
| UserSettingsController::UpdateEnumVariable (entry.enum_values, &new_enum, value, err); |
| if (err.Success()) |
| m_execution_level = (ExecutionLevel)new_enum; |
| } |
| else if (var_name == GetSettingNameForExecutionMode ()) |
| { |
| UserSettingsController::UpdateEnumVariable (entry.enum_values, &new_enum, value, err); |
| if (err.Success()) |
| m_execution_mode = (ExecutionMode)new_enum; |
| } |
| else if (var_name == GetSettingNameForExecutionOSType ()) |
| { |
| UserSettingsController::UpdateEnumVariable (entry.enum_values, &new_enum, value, err); |
| if (err.Success()) |
| m_execution_os_type = (ExecutionOSType)new_enum; |
| } |
| } |
| |
| void |
| TargetInstanceSettings::CopyInstanceSettings (const lldb::InstanceSettingsSP &new_settings, bool pending) |
| { |
| TargetInstanceSettings *new_settings_ptr = static_cast <TargetInstanceSettings *> (new_settings.get()); |
| |
| if (!new_settings_ptr) |
| return; |
| |
| m_expr_prefix_path = new_settings_ptr->m_expr_prefix_path; |
| m_expr_prefix_contents = new_settings_ptr->m_expr_prefix_contents; |
| m_execution_level = new_settings_ptr->m_execution_level; |
| m_execution_mode = new_settings_ptr->m_execution_mode; |
| m_execution_os_type = new_settings_ptr->m_execution_os_type; |
| } |
| |
| bool |
| TargetInstanceSettings::GetInstanceSettingsValue (const SettingEntry &entry, |
| const ConstString &var_name, |
| StringList &value, |
| Error *err) |
| { |
| if (var_name == GetSettingNameForExpressionPrefix ()) |
| { |
| value.AppendString (m_expr_prefix_path.c_str(), m_expr_prefix_path.size()); |
| } |
| else if (var_name == GetSettingNameForExecutionLevel ()) |
| { |
| value.AppendString (UserSettingsController::EnumToString (entry.enum_values, m_execution_level)); |
| } |
| else if (var_name == GetSettingNameForExecutionMode ()) |
| { |
| value.AppendString (UserSettingsController::EnumToString (entry.enum_values, m_execution_mode)); |
| } |
| else if (var_name == GetSettingNameForExecutionOSType ()) |
| { |
| value.AppendString (UserSettingsController::EnumToString (entry.enum_values, m_execution_os_type)); |
| } |
| else |
| { |
| if (err) |
| err->SetErrorStringWithFormat ("unrecognized variable name '%s'", var_name.AsCString()); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| const ConstString |
| TargetInstanceSettings::CreateInstanceName () |
| { |
| StreamString sstr; |
| static int instance_count = 1; |
| |
| sstr.Printf ("target_%d", instance_count); |
| ++instance_count; |
| |
| const ConstString ret_val (sstr.GetData()); |
| return ret_val; |
| } |
| |
| //-------------------------------------------------- |
| // Target::SettingsController Variable Tables |
| //-------------------------------------------------- |
| |
| SettingEntry |
| Target::SettingsController::global_settings_table[] = |
| { |
| // var-name var-type default enum init'd hidden help-text |
| // ================= ================== =========== ==== ====== ====== ========================================================================= |
| { TSC_DEFAULT_ARCH , eSetVarTypeString , NULL , NULL, false, false, "Default architecture to choose, when there's a choice." }, |
| { NULL , eSetVarTypeNone , NULL , NULL, false, false, NULL } |
| }; |
| |
| static lldb::OptionEnumValueElement |
| g_execution_level_enums[] = |
| { |
| { eExecutionLevelAuto , "auto" , "Automatically detect the execution level (user/kernel)." }, |
| { eExecutionLevelKernel , "kernel" , "Treat executables as kernel executables." }, |
| { eExecutionLevelUser , "user" , "Treat executables as user space executables." }, |
| { 0 , NULL , NULL } |
| }; |
| |
| static lldb::OptionEnumValueElement |
| g_execution_mode_enums[] = |
| { |
| { eExecutionModeAuto , "auto" , "Automatically detect the execution mode (static/dynamic)." }, |
| { eExecutionModeStatic , "static" , "All executables are static and addresses at the virtual addresses in the object files." }, |
| { eExecutionModeDynamic , "dynamic" , "Executables and shared libraries are dynamically loaded.." }, |
| { 0 , NULL , NULL } |
| }; |
| |
| static lldb::OptionEnumValueElement |
| g_execution_os_enums[] = |
| { |
| { eExecutionOSTypeAuto , "auto" , "Automatically detect the execution OS (none/halted/live)." }, |
| { eExecutionOSTypeNone , "none" , "There is no operating system available (no processes or threads)." }, |
| { eExecutionOSTypeHalted, "halted" , "There is an operating system, but it is halted when the debugger is halted. " |
| "Processes and threads must be discovered by accessing symbols and reading " |
| "memory." }, |
| { eExecutionOSTypeLive , "live" , "There is a live operating system with debug services that can be used to " |
| "get processes, threads and theirs states." }, |
| { 0, NULL, NULL } |
| }; |
| |
| SettingEntry |
| Target::SettingsController::instance_settings_table[] = |
| { |
| // var-name var-type default enum-table init'd hidden help-text |
| // ================= ================== =========== ========================= ====== ====== ========================================================================= |
| { TSC_EXPR_PREFIX , eSetVarTypeString , NULL , NULL , false, false, "Path to a file containing expressions to be prepended to all expressions." }, |
| { TSC_EXEC_LEVEL , eSetVarTypeEnum , "auto" , g_execution_level_enums , false, false, "Sets the execution level for a target." }, |
| { TSC_EXEC_MODE , eSetVarTypeEnum , "auto" , g_execution_mode_enums , false, false, "Sets the execution mode for a target." }, |
| { TSC_EXEC_OS_TYPE , eSetVarTypeEnum , "auto" , g_execution_os_enums , false, false, "Sets the execution OS for a target." }, |
| { NULL , eSetVarTypeNone , NULL , NULL , false, false, NULL } |
| }; |
