| //===-- PlatformDarwin.cpp ------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "PlatformDarwin.h" |
| |
| #include <cstring> |
| |
| #include <algorithm> |
| #include <memory> |
| #include <mutex> |
| |
| #include "lldb/Breakpoint/BreakpointLocation.h" |
| #include "lldb/Breakpoint/BreakpointSite.h" |
| #include "lldb/Core/Debugger.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/ModuleSpec.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/Section.h" |
| #include "lldb/Host/Host.h" |
| #include "lldb/Host/HostInfo.h" |
| #include "lldb/Host/XML.h" |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/OptionValueProperties.h" |
| #include "lldb/Interpreter/OptionValueString.h" |
| #include "lldb/Interpreter/Options.h" |
| #include "lldb/Symbol/LocateSymbolFile.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/SymbolFile.h" |
| #include "lldb/Symbol/SymbolVendor.h" |
| #include "lldb/Target/Platform.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Utility/LLDBLog.h" |
| #include "lldb/Utility/Log.h" |
| #include "lldb/Utility/ProcessInfo.h" |
| #include "lldb/Utility/Status.h" |
| #include "lldb/Utility/Timer.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/Threading.h" |
| #include "llvm/Support/VersionTuple.h" |
| |
| #if defined(__APPLE__) |
| #include <TargetConditionals.h> |
| #endif |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| static Status ExceptionMaskValidator(const char *string, void *unused) { |
| Status error; |
| llvm::StringRef str_ref(string); |
| llvm::SmallVector<llvm::StringRef> candidates; |
| str_ref.split(candidates, '|'); |
| for (auto candidate : candidates) { |
| if (!(candidate == "EXC_BAD_ACCESS" |
| || candidate == "EXC_BAD_INSTRUCTION" |
| || candidate == "EXC_ARITHMETIC" |
| || candidate == "EXC_RESOURCE" |
| || candidate == "EXC_GUARD")) { |
| error.SetErrorStringWithFormat("invalid exception type: '%s'", |
| candidate.str().c_str()); |
| return error; |
| } |
| } |
| return {}; |
| } |
| |
| /// Destructor. |
| /// |
| /// The destructor is virtual since this class is designed to be |
| /// inherited from by the plug-in instance. |
| PlatformDarwin::~PlatformDarwin() = default; |
| |
| // Static Variables |
| static uint32_t g_initialize_count = 0; |
| |
| void PlatformDarwin::Initialize() { |
| Platform::Initialize(); |
| |
| if (g_initialize_count++ == 0) { |
| PluginManager::RegisterPlugin(PlatformDarwin::GetPluginNameStatic(), |
| PlatformDarwin::GetDescriptionStatic(), |
| PlatformDarwin::CreateInstance, |
| PlatformDarwin::DebuggerInitialize); |
| } |
| } |
| |
| void PlatformDarwin::Terminate() { |
| if (g_initialize_count > 0) { |
| if (--g_initialize_count == 0) { |
| PluginManager::UnregisterPlugin(PlatformDarwin::CreateInstance); |
| } |
| } |
| |
| Platform::Terminate(); |
| } |
| |
| llvm::StringRef PlatformDarwin::GetDescriptionStatic() { |
| return "Darwin platform plug-in."; |
| } |
| |
| PlatformSP PlatformDarwin::CreateInstance(bool force, const ArchSpec *arch) { |
| // We only create subclasses of the PlatformDarwin plugin. |
| return PlatformSP(); |
| } |
| |
| #define LLDB_PROPERTIES_platformdarwin |
| #include "PlatformMacOSXProperties.inc" |
| |
| #define LLDB_PROPERTIES_platformdarwin |
| enum { |
| #include "PlatformMacOSXPropertiesEnum.inc" |
| }; |
| |
| class PlatformDarwinProperties : public Properties { |
| public: |
| static ConstString &GetSettingName() { |
| static ConstString g_setting_name("darwin"); |
| return g_setting_name; |
| } |
| |
| PlatformDarwinProperties() : Properties() { |
| m_collection_sp = std::make_shared<OptionValueProperties>(GetSettingName()); |
| m_collection_sp->Initialize(g_platformdarwin_properties); |
| } |
| |
| ~PlatformDarwinProperties() override = default; |
| |
| const char *GetIgnoredExceptions() const { |
| const uint32_t idx = ePropertyIgnoredExceptions; |
| const OptionValueString *option_value = |
| m_collection_sp->GetPropertyAtIndexAsOptionValueString( |
| NULL, false, idx); |
| assert(option_value); |
| return option_value->GetCurrentValue(); |
| } |
| |
| OptionValueString *GetIgnoredExceptionValue() { |
| const uint32_t idx = ePropertyIgnoredExceptions; |
| OptionValueString *option_value = |
| m_collection_sp->GetPropertyAtIndexAsOptionValueString( |
| NULL, false, idx); |
| assert(option_value); |
| return option_value; |
| } |
| }; |
| |
| static PlatformDarwinProperties &GetGlobalProperties() { |
| static PlatformDarwinProperties g_settings; |
| return g_settings; |
| } |
| |
| void PlatformDarwin::DebuggerInitialize( |
| lldb_private::Debugger &debugger) { |
| if (!PluginManager::GetSettingForPlatformPlugin( |
| debugger, PlatformDarwinProperties::GetSettingName())) { |
| const bool is_global_setting = false; |
| PluginManager::CreateSettingForPlatformPlugin( |
| debugger, GetGlobalProperties().GetValueProperties(), |
| ConstString("Properties for the Darwin platform plug-in."), |
| is_global_setting); |
| OptionValueString *value = GetGlobalProperties().GetIgnoredExceptionValue(); |
| value->SetValidator(ExceptionMaskValidator); |
| } |
| } |
| |
| Args |
| PlatformDarwin::GetExtraStartupCommands() { |
| std::string ignored_exceptions |
| = GetGlobalProperties().GetIgnoredExceptions(); |
| if (ignored_exceptions.empty()) |
| return {}; |
| Args ret_args; |
| std::string packet = "QSetIgnoredExceptions:"; |
| packet.append(ignored_exceptions); |
| ret_args.AppendArgument(packet); |
| return ret_args; |
| } |
| |
| lldb_private::Status |
| PlatformDarwin::PutFile(const lldb_private::FileSpec &source, |
| const lldb_private::FileSpec &destination, uint32_t uid, |
| uint32_t gid) { |
| // Unconditionally unlink the destination. If it is an executable, |
| // simply opening it and truncating its contents would invalidate |
| // its cached code signature. |
| Unlink(destination); |
| return PlatformPOSIX::PutFile(source, destination, uid, gid); |
| } |
| |
| FileSpecList PlatformDarwin::LocateExecutableScriptingResources( |
| Target *target, Module &module, Stream *feedback_stream) { |
| FileSpecList file_list; |
| if (target && |
| target->GetDebugger().GetScriptLanguage() == eScriptLanguagePython) { |
| // NB some extensions might be meaningful and should not be stripped - |
| // "this.binary.file" |
| // should not lose ".file" but GetFileNameStrippingExtension() will do |
| // precisely that. Ideally, we should have a per-platform list of |
| // extensions (".exe", ".app", ".dSYM", ".framework") which should be |
| // stripped while leaving "this.binary.file" as-is. |
| |
| FileSpec module_spec = module.GetFileSpec(); |
| |
| if (module_spec) { |
| if (SymbolFile *symfile = module.GetSymbolFile()) { |
| ObjectFile *objfile = symfile->GetObjectFile(); |
| if (objfile) { |
| FileSpec symfile_spec(objfile->GetFileSpec()); |
| if (symfile_spec && |
| llvm::StringRef(symfile_spec.GetPath()) |
| .contains_insensitive(".dSYM/Contents/Resources/DWARF") && |
| FileSystem::Instance().Exists(symfile_spec)) { |
| while (module_spec.GetFilename()) { |
| std::string module_basename( |
| module_spec.GetFilename().GetCString()); |
| std::string original_module_basename(module_basename); |
| |
| bool was_keyword = false; |
| |
| // FIXME: for Python, we cannot allow certain characters in |
| // module |
| // filenames we import. Theoretically, different scripting |
| // languages may have different sets of forbidden tokens in |
| // filenames, and that should be dealt with by each |
| // ScriptInterpreter. For now, we just replace dots with |
| // underscores, but if we ever support anything other than |
| // Python we will need to rework this |
| std::replace(module_basename.begin(), module_basename.end(), '.', |
| '_'); |
| std::replace(module_basename.begin(), module_basename.end(), ' ', |
| '_'); |
| std::replace(module_basename.begin(), module_basename.end(), '-', |
| '_'); |
| ScriptInterpreter *script_interpreter = |
| target->GetDebugger().GetScriptInterpreter(); |
| if (script_interpreter && |
| script_interpreter->IsReservedWord(module_basename.c_str())) { |
| module_basename.insert(module_basename.begin(), '_'); |
| was_keyword = true; |
| } |
| |
| StreamString path_string; |
| StreamString original_path_string; |
| // for OSX we are going to be in |
| // .dSYM/Contents/Resources/DWARF/<basename> let us go to |
| // .dSYM/Contents/Resources/Python/<basename>.py and see if the |
| // file exists |
| path_string.Printf("%s/../Python/%s.py", |
| symfile_spec.GetDirectory().GetCString(), |
| module_basename.c_str()); |
| original_path_string.Printf( |
| "%s/../Python/%s.py", |
| symfile_spec.GetDirectory().GetCString(), |
| original_module_basename.c_str()); |
| FileSpec script_fspec(path_string.GetString()); |
| FileSystem::Instance().Resolve(script_fspec); |
| FileSpec orig_script_fspec(original_path_string.GetString()); |
| FileSystem::Instance().Resolve(orig_script_fspec); |
| |
| // if we did some replacements of reserved characters, and a |
| // file with the untampered name exists, then warn the user |
| // that the file as-is shall not be loaded |
| if (feedback_stream) { |
| if (module_basename != original_module_basename && |
| FileSystem::Instance().Exists(orig_script_fspec)) { |
| const char *reason_for_complaint = |
| was_keyword ? "conflicts with a keyword" |
| : "contains reserved characters"; |
| if (FileSystem::Instance().Exists(script_fspec)) |
| feedback_stream->Printf( |
| "warning: the symbol file '%s' contains a debug " |
| "script. However, its name" |
| " '%s' %s and as such cannot be loaded. LLDB will" |
| " load '%s' instead. Consider removing the file with " |
| "the malformed name to" |
| " eliminate this warning.\n", |
| symfile_spec.GetPath().c_str(), |
| original_path_string.GetData(), reason_for_complaint, |
| path_string.GetData()); |
| else |
| feedback_stream->Printf( |
| "warning: the symbol file '%s' contains a debug " |
| "script. However, its name" |
| " %s and as such cannot be loaded. If you intend" |
| " to have this script loaded, please rename '%s' to " |
| "'%s' and retry.\n", |
| symfile_spec.GetPath().c_str(), reason_for_complaint, |
| original_path_string.GetData(), path_string.GetData()); |
| } |
| } |
| |
| if (FileSystem::Instance().Exists(script_fspec)) { |
| file_list.Append(script_fspec); |
| break; |
| } |
| |
| // If we didn't find the python file, then keep stripping the |
| // extensions and try again |
| ConstString filename_no_extension( |
| module_spec.GetFileNameStrippingExtension()); |
| if (module_spec.GetFilename() == filename_no_extension) |
| break; |
| |
| module_spec.GetFilename() = filename_no_extension; |
| } |
| } |
| } |
| } |
| } |
| } |
| return file_list; |
| } |
| |
| Status PlatformDarwin::ResolveSymbolFile(Target &target, |
| const ModuleSpec &sym_spec, |
| FileSpec &sym_file) { |
| sym_file = sym_spec.GetSymbolFileSpec(); |
| if (FileSystem::Instance().IsDirectory(sym_file)) { |
| sym_file = Symbols::FindSymbolFileInBundle(sym_file, sym_spec.GetUUIDPtr(), |
| sym_spec.GetArchitecturePtr()); |
| } |
| return {}; |
| } |
| |
| Status PlatformDarwin::GetSharedModule( |
| const ModuleSpec &module_spec, Process *process, ModuleSP &module_sp, |
| const FileSpecList *module_search_paths_ptr, |
| llvm::SmallVectorImpl<ModuleSP> *old_modules, bool *did_create_ptr) { |
| Status error; |
| module_sp.reset(); |
| |
| if (IsRemote()) { |
| // If we have a remote platform always, let it try and locate the shared |
| // module first. |
| if (m_remote_platform_sp) { |
| error = m_remote_platform_sp->GetSharedModule( |
| module_spec, process, module_sp, module_search_paths_ptr, old_modules, |
| did_create_ptr); |
| } |
| } |
| |
| if (!module_sp) { |
| // Fall back to the local platform and find the file locally |
| error = Platform::GetSharedModule(module_spec, process, module_sp, |
| module_search_paths_ptr, old_modules, |
| did_create_ptr); |
| |
| const FileSpec &platform_file = module_spec.GetFileSpec(); |
| if (!module_sp && module_search_paths_ptr && platform_file) { |
| // We can try to pull off part of the file path up to the bundle |
| // directory level and try any module search paths... |
| FileSpec bundle_directory; |
| if (Host::GetBundleDirectory(platform_file, bundle_directory)) { |
| if (platform_file == bundle_directory) { |
| ModuleSpec new_module_spec(module_spec); |
| new_module_spec.GetFileSpec() = bundle_directory; |
| if (Host::ResolveExecutableInBundle(new_module_spec.GetFileSpec())) { |
| Status new_error(Platform::GetSharedModule( |
| new_module_spec, process, module_sp, nullptr, old_modules, |
| did_create_ptr)); |
| |
| if (module_sp) |
| return new_error; |
| } |
| } else { |
| char platform_path[PATH_MAX]; |
| char bundle_dir[PATH_MAX]; |
| platform_file.GetPath(platform_path, sizeof(platform_path)); |
| const size_t bundle_directory_len = |
| bundle_directory.GetPath(bundle_dir, sizeof(bundle_dir)); |
| char new_path[PATH_MAX]; |
| size_t num_module_search_paths = module_search_paths_ptr->GetSize(); |
| for (size_t i = 0; i < num_module_search_paths; ++i) { |
| const size_t search_path_len = |
| module_search_paths_ptr->GetFileSpecAtIndex(i).GetPath( |
| new_path, sizeof(new_path)); |
| if (search_path_len < sizeof(new_path)) { |
| snprintf(new_path + search_path_len, |
| sizeof(new_path) - search_path_len, "/%s", |
| platform_path + bundle_directory_len); |
| FileSpec new_file_spec(new_path); |
| if (FileSystem::Instance().Exists(new_file_spec)) { |
| ModuleSpec new_module_spec(module_spec); |
| new_module_spec.GetFileSpec() = new_file_spec; |
| Status new_error(Platform::GetSharedModule( |
| new_module_spec, process, module_sp, nullptr, old_modules, |
| did_create_ptr)); |
| |
| if (module_sp) { |
| module_sp->SetPlatformFileSpec(new_file_spec); |
| return new_error; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| if (module_sp) |
| module_sp->SetPlatformFileSpec(module_spec.GetFileSpec()); |
| return error; |
| } |
| |
| size_t |
| PlatformDarwin::GetSoftwareBreakpointTrapOpcode(Target &target, |
| BreakpointSite *bp_site) { |
| const uint8_t *trap_opcode = nullptr; |
| uint32_t trap_opcode_size = 0; |
| bool bp_is_thumb = false; |
| |
| llvm::Triple::ArchType machine = target.GetArchitecture().GetMachine(); |
| switch (machine) { |
| case llvm::Triple::aarch64_32: |
| case llvm::Triple::aarch64: { |
| // 'brk #0' or 0xd4200000 in BE byte order |
| static const uint8_t g_arm64_breakpoint_opcode[] = {0x00, 0x00, 0x20, 0xD4}; |
| trap_opcode = g_arm64_breakpoint_opcode; |
| trap_opcode_size = sizeof(g_arm64_breakpoint_opcode); |
| } break; |
| |
| case llvm::Triple::thumb: |
| bp_is_thumb = true; |
| LLVM_FALLTHROUGH; |
| case llvm::Triple::arm: { |
| static const uint8_t g_arm_breakpoint_opcode[] = {0xFE, 0xDE, 0xFF, 0xE7}; |
| static const uint8_t g_thumb_breakpooint_opcode[] = {0xFE, 0xDE}; |
| |
| // Auto detect arm/thumb if it wasn't explicitly specified |
| if (!bp_is_thumb) { |
| lldb::BreakpointLocationSP bp_loc_sp(bp_site->GetOwnerAtIndex(0)); |
| if (bp_loc_sp) |
| bp_is_thumb = bp_loc_sp->GetAddress().GetAddressClass() == |
| AddressClass::eCodeAlternateISA; |
| } |
| if (bp_is_thumb) { |
| trap_opcode = g_thumb_breakpooint_opcode; |
| trap_opcode_size = sizeof(g_thumb_breakpooint_opcode); |
| break; |
| } |
| trap_opcode = g_arm_breakpoint_opcode; |
| trap_opcode_size = sizeof(g_arm_breakpoint_opcode); |
| } break; |
| |
| case llvm::Triple::ppc: |
| case llvm::Triple::ppc64: { |
| static const uint8_t g_ppc_breakpoint_opcode[] = {0x7F, 0xC0, 0x00, 0x08}; |
| trap_opcode = g_ppc_breakpoint_opcode; |
| trap_opcode_size = sizeof(g_ppc_breakpoint_opcode); |
| } break; |
| |
| default: |
| return Platform::GetSoftwareBreakpointTrapOpcode(target, bp_site); |
| } |
| |
| if (trap_opcode && trap_opcode_size) { |
| if (bp_site->SetTrapOpcode(trap_opcode, trap_opcode_size)) |
| return trap_opcode_size; |
| } |
| return 0; |
| } |
| |
| bool PlatformDarwin::ModuleIsExcludedForUnconstrainedSearches( |
| lldb_private::Target &target, const lldb::ModuleSP &module_sp) { |
| if (!module_sp) |
| return false; |
| |
| ObjectFile *obj_file = module_sp->GetObjectFile(); |
| if (!obj_file) |
| return false; |
| |
| ObjectFile::Type obj_type = obj_file->GetType(); |
| return obj_type == ObjectFile::eTypeDynamicLinker; |
| } |
| |
| void PlatformDarwin::x86GetSupportedArchitectures( |
| std::vector<ArchSpec> &archs) { |
| ArchSpec host_arch = HostInfo::GetArchitecture(HostInfo::eArchKindDefault); |
| archs.push_back(host_arch); |
| |
| if (host_arch.GetCore() == ArchSpec::eCore_x86_64_x86_64h) { |
| archs.push_back(ArchSpec("x86_64-apple-macosx")); |
| archs.push_back(HostInfo::GetArchitecture(HostInfo::eArchKind32)); |
| } else { |
| ArchSpec host_arch64 = HostInfo::GetArchitecture(HostInfo::eArchKind64); |
| if (host_arch.IsExactMatch(host_arch64)) |
| archs.push_back(HostInfo::GetArchitecture(HostInfo::eArchKind32)); |
| } |
| } |
| |
| static llvm::ArrayRef<const char *> GetCompatibleArchs(ArchSpec::Core core) { |
| switch (core) { |
| default: |
| LLVM_FALLTHROUGH; |
| case ArchSpec::eCore_arm_arm64e: { |
| static const char *g_arm64e_compatible_archs[] = { |
| "arm64e", "arm64", "armv7", "armv7f", "armv7k", "armv7s", |
| "armv7m", "armv7em", "armv6m", "armv6", "armv5", "armv4", |
| "arm", "thumbv7", "thumbv7f", "thumbv7k", "thumbv7s", "thumbv7m", |
| "thumbv7em", "thumbv6m", "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_arm64e_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_arm64: { |
| static const char *g_arm64_compatible_archs[] = { |
| "arm64", "armv7", "armv7f", "armv7k", "armv7s", "armv7m", |
| "armv7em", "armv6m", "armv6", "armv5", "armv4", "arm", |
| "thumbv7", "thumbv7f", "thumbv7k", "thumbv7s", "thumbv7m", "thumbv7em", |
| "thumbv6m", "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_arm64_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7: { |
| static const char *g_armv7_compatible_archs[] = { |
| "armv7", "armv6m", "armv6", "armv5", "armv4", "arm", |
| "thumbv7", "thumbv6m", "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7f: { |
| static const char *g_armv7f_compatible_archs[] = { |
| "armv7f", "armv7", "armv6m", "armv6", "armv5", |
| "armv4", "arm", "thumbv7f", "thumbv7", "thumbv6m", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7f_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7k: { |
| static const char *g_armv7k_compatible_archs[] = { |
| "armv7k", "armv7", "armv6m", "armv6", "armv5", |
| "armv4", "arm", "thumbv7k", "thumbv7", "thumbv6m", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7k_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7s: { |
| static const char *g_armv7s_compatible_archs[] = { |
| "armv7s", "armv7", "armv6m", "armv6", "armv5", |
| "armv4", "arm", "thumbv7s", "thumbv7", "thumbv6m", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7s_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7m: { |
| static const char *g_armv7m_compatible_archs[] = { |
| "armv7m", "armv7", "armv6m", "armv6", "armv5", |
| "armv4", "arm", "thumbv7m", "thumbv7", "thumbv6m", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7m_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv7em: { |
| static const char *g_armv7em_compatible_archs[] = { |
| "armv7em", "armv7", "armv6m", "armv6", "armv5", |
| "armv4", "arm", "thumbv7em", "thumbv7", "thumbv6m", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv7em_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv6m: { |
| static const char *g_armv6m_compatible_archs[] = { |
| "armv6m", "armv6", "armv5", "armv4", "arm", |
| "thumbv6m", "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv6m_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv6: { |
| static const char *g_armv6_compatible_archs[] = { |
| "armv6", "armv5", "armv4", "arm", |
| "thumbv6", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv6_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv5: { |
| static const char *g_armv5_compatible_archs[] = { |
| "armv5", "armv4", "arm", "thumbv5", "thumbv4t", "thumb", |
| }; |
| return {g_armv5_compatible_archs}; |
| } |
| case ArchSpec::eCore_arm_armv4: { |
| static const char *g_armv4_compatible_archs[] = { |
| "armv4", |
| "arm", |
| "thumbv4t", |
| "thumb", |
| }; |
| return {g_armv4_compatible_archs}; |
| } |
| } |
| return {}; |
| } |
| |
| /// The architecture selection rules for arm processors These cpu subtypes have |
| /// distinct names (e.g. armv7f) but armv7 binaries run fine on an armv7f |
| /// processor. |
| void PlatformDarwin::ARMGetSupportedArchitectures( |
| std::vector<ArchSpec> &archs, llvm::Optional<llvm::Triple::OSType> os) { |
| const ArchSpec system_arch = GetSystemArchitecture(); |
| const ArchSpec::Core system_core = system_arch.GetCore(); |
| for (const char *arch : GetCompatibleArchs(system_core)) { |
| llvm::Triple triple; |
| triple.setArchName(arch); |
| triple.setVendor(llvm::Triple::VendorType::Apple); |
| if (os) |
| triple.setOS(*os); |
| archs.push_back(ArchSpec(triple)); |
| } |
| } |
| |
| static FileSpec GetXcodeSelectPath() { |
| static FileSpec g_xcode_select_filespec; |
| |
| if (!g_xcode_select_filespec) { |
| FileSpec xcode_select_cmd("/usr/bin/xcode-select"); |
| if (FileSystem::Instance().Exists(xcode_select_cmd)) { |
| int exit_status = -1; |
| int signo = -1; |
| std::string command_output; |
| Status status = |
| Host::RunShellCommand("/usr/bin/xcode-select --print-path", |
| FileSpec(), // current working directory |
| &exit_status, &signo, &command_output, |
| std::chrono::seconds(2), // short timeout |
| false); // don't run in a shell |
| if (status.Success() && exit_status == 0 && !command_output.empty()) { |
| size_t first_non_newline = command_output.find_last_not_of("\r\n"); |
| if (first_non_newline != std::string::npos) { |
| command_output.erase(first_non_newline + 1); |
| } |
| g_xcode_select_filespec = FileSpec(command_output); |
| } |
| } |
| } |
| |
| return g_xcode_select_filespec; |
| } |
| |
| BreakpointSP PlatformDarwin::SetThreadCreationBreakpoint(Target &target) { |
| BreakpointSP bp_sp; |
| static const char *g_bp_names[] = { |
| "start_wqthread", "_pthread_wqthread", "_pthread_start", |
| }; |
| |
| static const char *g_bp_modules[] = {"libsystem_c.dylib", |
| "libSystem.B.dylib"}; |
| |
| FileSpecList bp_modules; |
| for (size_t i = 0; i < llvm::array_lengthof(g_bp_modules); i++) { |
| const char *bp_module = g_bp_modules[i]; |
| bp_modules.EmplaceBack(bp_module); |
| } |
| |
| bool internal = true; |
| bool hardware = false; |
| LazyBool skip_prologue = eLazyBoolNo; |
| bp_sp = target.CreateBreakpoint(&bp_modules, nullptr, g_bp_names, |
| llvm::array_lengthof(g_bp_names), |
| eFunctionNameTypeFull, eLanguageTypeUnknown, |
| 0, skip_prologue, internal, hardware); |
| bp_sp->SetBreakpointKind("thread-creation"); |
| |
| return bp_sp; |
| } |
| |
| uint32_t |
| PlatformDarwin::GetResumeCountForLaunchInfo(ProcessLaunchInfo &launch_info) { |
| const FileSpec &shell = launch_info.GetShell(); |
| if (!shell) |
| return 1; |
| |
| std::string shell_string = shell.GetPath(); |
| const char *shell_name = strrchr(shell_string.c_str(), '/'); |
| if (shell_name == nullptr) |
| shell_name = shell_string.c_str(); |
| else |
| shell_name++; |
| |
| if (strcmp(shell_name, "sh") == 0) { |
| // /bin/sh re-exec's itself as /bin/bash requiring another resume. But it |
| // only does this if the COMMAND_MODE environment variable is set to |
| // "legacy". |
| if (launch_info.GetEnvironment().lookup("COMMAND_MODE") == "legacy") |
| return 2; |
| return 1; |
| } else if (strcmp(shell_name, "csh") == 0 || |
| strcmp(shell_name, "tcsh") == 0 || |
| strcmp(shell_name, "zsh") == 0) { |
| // csh and tcsh always seem to re-exec themselves. |
| return 2; |
| } else |
| return 1; |
| } |
| |
| lldb::ProcessSP PlatformDarwin::DebugProcess(ProcessLaunchInfo &launch_info, |
| Debugger &debugger, Target &target, |
| Status &error) { |
| ProcessSP process_sp; |
| |
| if (IsHost()) { |
| // We are going to hand this process off to debugserver which will be in |
| // charge of setting the exit status. However, we still need to reap it |
| // from lldb. So, make sure we use a exit callback which does not set exit |
| // status. |
| launch_info.SetMonitorProcessCallback( |
| &ProcessLaunchInfo::NoOpMonitorCallback); |
| process_sp = Platform::DebugProcess(launch_info, debugger, target, error); |
| } else { |
| if (m_remote_platform_sp) |
| process_sp = m_remote_platform_sp->DebugProcess(launch_info, debugger, |
| target, error); |
| else |
| error.SetErrorString("the platform is not currently connected"); |
| } |
| return process_sp; |
| } |
| |
| void PlatformDarwin::CalculateTrapHandlerSymbolNames() { |
| m_trap_handlers.push_back(ConstString("_sigtramp")); |
| } |
| |
| static FileSpec GetCommandLineToolsLibraryPath() { |
| static FileSpec g_command_line_tools_filespec; |
| |
| if (!g_command_line_tools_filespec) { |
| FileSpec command_line_tools_path(GetXcodeSelectPath()); |
| command_line_tools_path.AppendPathComponent("Library"); |
| if (FileSystem::Instance().Exists(command_line_tools_path)) { |
| g_command_line_tools_filespec = command_line_tools_path; |
| } |
| } |
| |
| return g_command_line_tools_filespec; |
| } |
| |
| FileSystem::EnumerateDirectoryResult PlatformDarwin::DirectoryEnumerator( |
| void *baton, llvm::sys::fs::file_type file_type, llvm::StringRef path) { |
| SDKEnumeratorInfo *enumerator_info = static_cast<SDKEnumeratorInfo *>(baton); |
| |
| FileSpec spec(path); |
| if (XcodeSDK::SDKSupportsModules(enumerator_info->sdk_type, spec)) { |
| enumerator_info->found_path = spec; |
| return FileSystem::EnumerateDirectoryResult::eEnumerateDirectoryResultNext; |
| } |
| |
| return FileSystem::EnumerateDirectoryResult::eEnumerateDirectoryResultNext; |
| } |
| |
| FileSpec PlatformDarwin::FindSDKInXcodeForModules(XcodeSDK::Type sdk_type, |
| const FileSpec &sdks_spec) { |
| // Look inside Xcode for the required installed iOS SDK version |
| |
| if (!FileSystem::Instance().IsDirectory(sdks_spec)) { |
| return FileSpec(); |
| } |
| |
| const bool find_directories = true; |
| const bool find_files = false; |
| const bool find_other = true; // include symlinks |
| |
| SDKEnumeratorInfo enumerator_info; |
| |
| enumerator_info.sdk_type = sdk_type; |
| |
| FileSystem::Instance().EnumerateDirectory( |
| sdks_spec.GetPath(), find_directories, find_files, find_other, |
| DirectoryEnumerator, &enumerator_info); |
| |
| if (FileSystem::Instance().IsDirectory(enumerator_info.found_path)) |
| return enumerator_info.found_path; |
| else |
| return FileSpec(); |
| } |
| |
| FileSpec PlatformDarwin::GetSDKDirectoryForModules(XcodeSDK::Type sdk_type) { |
| FileSpec sdks_spec = HostInfo::GetXcodeContentsDirectory(); |
| sdks_spec.AppendPathComponent("Developer"); |
| sdks_spec.AppendPathComponent("Platforms"); |
| |
| switch (sdk_type) { |
| case XcodeSDK::Type::MacOSX: |
| sdks_spec.AppendPathComponent("MacOSX.platform"); |
| break; |
| case XcodeSDK::Type::iPhoneSimulator: |
| sdks_spec.AppendPathComponent("iPhoneSimulator.platform"); |
| break; |
| case XcodeSDK::Type::iPhoneOS: |
| sdks_spec.AppendPathComponent("iPhoneOS.platform"); |
| break; |
| case XcodeSDK::Type::WatchSimulator: |
| sdks_spec.AppendPathComponent("WatchSimulator.platform"); |
| break; |
| case XcodeSDK::Type::AppleTVSimulator: |
| sdks_spec.AppendPathComponent("AppleTVSimulator.platform"); |
| break; |
| default: |
| llvm_unreachable("unsupported sdk"); |
| } |
| |
| sdks_spec.AppendPathComponent("Developer"); |
| sdks_spec.AppendPathComponent("SDKs"); |
| |
| if (sdk_type == XcodeSDK::Type::MacOSX) { |
| llvm::VersionTuple version = HostInfo::GetOSVersion(); |
| |
| if (!version.empty()) { |
| if (XcodeSDK::SDKSupportsModules(XcodeSDK::Type::MacOSX, version)) { |
| // If the Xcode SDKs are not available then try to use the |
| // Command Line Tools one which is only for MacOSX. |
| if (!FileSystem::Instance().Exists(sdks_spec)) { |
| sdks_spec = GetCommandLineToolsLibraryPath(); |
| sdks_spec.AppendPathComponent("SDKs"); |
| } |
| |
| // We slightly prefer the exact SDK for this machine. See if it is |
| // there. |
| |
| FileSpec native_sdk_spec = sdks_spec; |
| StreamString native_sdk_name; |
| native_sdk_name.Printf("MacOSX%u.%u.sdk", version.getMajor(), |
| version.getMinor().value_or(0)); |
| native_sdk_spec.AppendPathComponent(native_sdk_name.GetString()); |
| |
| if (FileSystem::Instance().Exists(native_sdk_spec)) { |
| return native_sdk_spec; |
| } |
| } |
| } |
| } |
| |
| return FindSDKInXcodeForModules(sdk_type, sdks_spec); |
| } |
| |
| std::tuple<llvm::VersionTuple, llvm::StringRef> |
| PlatformDarwin::ParseVersionBuildDir(llvm::StringRef dir) { |
| llvm::StringRef build; |
| llvm::StringRef version_str; |
| llvm::StringRef build_str; |
| std::tie(version_str, build_str) = dir.split(' '); |
| llvm::VersionTuple version; |
| if (!version.tryParse(version_str) || |
| build_str.empty()) { |
| if (build_str.consume_front("(")) { |
| size_t pos = build_str.find(')'); |
| build = build_str.slice(0, pos); |
| } |
| } |
| |
| return std::make_tuple(version, build); |
| } |
| |
| llvm::Expected<StructuredData::DictionarySP> |
| PlatformDarwin::FetchExtendedCrashInformation(Process &process) { |
| Log *log = GetLog(LLDBLog::Process); |
| |
| StructuredData::ArraySP annotations = ExtractCrashInfoAnnotations(process); |
| |
| if (!annotations || !annotations->GetSize()) { |
| LLDB_LOG(log, "Couldn't extract crash information annotations"); |
| return nullptr; |
| } |
| |
| StructuredData::DictionarySP extended_crash_info = |
| std::make_shared<StructuredData::Dictionary>(); |
| |
| extended_crash_info->AddItem("crash-info annotations", annotations); |
| |
| return extended_crash_info; |
| } |
| |
| StructuredData::ArraySP |
| PlatformDarwin::ExtractCrashInfoAnnotations(Process &process) { |
| Log *log = GetLog(LLDBLog::Process); |
| |
| ConstString section_name("__crash_info"); |
| Target &target = process.GetTarget(); |
| StructuredData::ArraySP array_sp = std::make_shared<StructuredData::Array>(); |
| |
| for (ModuleSP module : target.GetImages().Modules()) { |
| SectionList *sections = module->GetSectionList(); |
| |
| std::string module_name = module->GetSpecificationDescription(); |
| |
| // The DYDL module is skipped since it's always loaded when running the |
| // binary. |
| if (module_name == "/usr/lib/dyld") |
| continue; |
| |
| if (!sections) { |
| LLDB_LOG(log, "Module {0} doesn't have any section!", module_name); |
| continue; |
| } |
| |
| SectionSP crash_info = sections->FindSectionByName(section_name); |
| if (!crash_info) { |
| LLDB_LOG(log, "Module {0} doesn't have section {1}!", module_name, |
| section_name); |
| continue; |
| } |
| |
| addr_t load_addr = crash_info->GetLoadBaseAddress(&target); |
| |
| if (load_addr == LLDB_INVALID_ADDRESS) { |
| LLDB_LOG(log, "Module {0} has an invalid '{1}' section load address: {2}", |
| module_name, section_name, load_addr); |
| continue; |
| } |
| |
| Status error; |
| CrashInfoAnnotations annotations; |
| size_t expected_size = sizeof(CrashInfoAnnotations); |
| size_t bytes_read = process.ReadMemoryFromInferior(load_addr, &annotations, |
| expected_size, error); |
| |
| if (expected_size != bytes_read || error.Fail()) { |
| LLDB_LOG(log, "Failed to read {0} section from memory in module {1}: {2}", |
| section_name, module_name, error); |
| continue; |
| } |
| |
| // initial support added for version 5 |
| if (annotations.version < 5) { |
| LLDB_LOG(log, |
| "Annotation version lower than 5 unsupported! Module {0} has " |
| "version {1} instead.", |
| module_name, annotations.version); |
| continue; |
| } |
| |
| if (!annotations.message) { |
| LLDB_LOG(log, "No message available for module {0}.", module_name); |
| continue; |
| } |
| |
| std::string message; |
| bytes_read = |
| process.ReadCStringFromMemory(annotations.message, message, error); |
| |
| if (message.empty() || bytes_read != message.size() || error.Fail()) { |
| LLDB_LOG(log, "Failed to read the message from memory in module {0}: {1}", |
| module_name, error); |
| continue; |
| } |
| |
| // Remove trailing newline from message |
| if (message.back() == '\n') |
| message.pop_back(); |
| |
| if (!annotations.message2) |
| LLDB_LOG(log, "No message2 available for module {0}.", module_name); |
| |
| std::string message2; |
| bytes_read = |
| process.ReadCStringFromMemory(annotations.message2, message2, error); |
| |
| if (!message2.empty() && bytes_read == message2.size() && error.Success()) |
| if (message2.back() == '\n') |
| message2.pop_back(); |
| |
| StructuredData::DictionarySP entry_sp = |
| std::make_shared<StructuredData::Dictionary>(); |
| |
| entry_sp->AddStringItem("image", module->GetFileSpec().GetPath(false)); |
| entry_sp->AddStringItem("uuid", module->GetUUID().GetAsString()); |
| entry_sp->AddStringItem("message", message); |
| entry_sp->AddStringItem("message2", message2); |
| entry_sp->AddIntegerItem("abort-cause", annotations.abort_cause); |
| |
| array_sp->AddItem(entry_sp); |
| } |
| |
| return array_sp; |
| } |
| |
| void PlatformDarwin::AddClangModuleCompilationOptionsForSDKType( |
| Target *target, std::vector<std::string> &options, XcodeSDK::Type sdk_type) { |
| const std::vector<std::string> apple_arguments = { |
| "-x", "objective-c++", "-fobjc-arc", |
| "-fblocks", "-D_ISO646_H", "-D__ISO646_H", |
| "-fgnuc-version=4.2.1"}; |
| |
| options.insert(options.end(), apple_arguments.begin(), apple_arguments.end()); |
| |
| StreamString minimum_version_option; |
| bool use_current_os_version = false; |
| // If the SDK type is for the host OS, use its version number. |
| auto get_host_os = []() { return HostInfo::GetTargetTriple().getOS(); }; |
| switch (sdk_type) { |
| case XcodeSDK::Type::MacOSX: |
| use_current_os_version = get_host_os() == llvm::Triple::MacOSX; |
| break; |
| case XcodeSDK::Type::iPhoneOS: |
| use_current_os_version = get_host_os() == llvm::Triple::IOS; |
| break; |
| case XcodeSDK::Type::AppleTVOS: |
| use_current_os_version = get_host_os() == llvm::Triple::TvOS; |
| break; |
| case XcodeSDK::Type::watchOS: |
| use_current_os_version = get_host_os() == llvm::Triple::WatchOS; |
| break; |
| default: |
| break; |
| } |
| |
| llvm::VersionTuple version; |
| if (use_current_os_version) |
| version = GetOSVersion(); |
| else if (target) { |
| // Our OS doesn't match our executable so we need to get the min OS version |
| // from the object file |
| ModuleSP exe_module_sp = target->GetExecutableModule(); |
| if (exe_module_sp) { |
| ObjectFile *object_file = exe_module_sp->GetObjectFile(); |
| if (object_file) |
| version = object_file->GetMinimumOSVersion(); |
| } |
| } |
| // Only add the version-min options if we got a version from somewhere |
| if (!version.empty() && sdk_type != XcodeSDK::Type::Linux) { |
| #define OPTION(PREFIX, NAME, VAR, ...) \ |
| const char *opt_##VAR = NAME; \ |
| (void)opt_##VAR; |
| #include "clang/Driver/Options.inc" |
| #undef OPTION |
| minimum_version_option << '-'; |
| switch (sdk_type) { |
| case XcodeSDK::Type::MacOSX: |
| minimum_version_option << opt_mmacos_version_min_EQ; |
| break; |
| case XcodeSDK::Type::iPhoneSimulator: |
| minimum_version_option << opt_mios_simulator_version_min_EQ; |
| break; |
| case XcodeSDK::Type::iPhoneOS: |
| minimum_version_option << opt_mios_version_min_EQ; |
| break; |
| case XcodeSDK::Type::AppleTVSimulator: |
| minimum_version_option << opt_mtvos_simulator_version_min_EQ; |
| break; |
| case XcodeSDK::Type::AppleTVOS: |
| minimum_version_option << opt_mtvos_version_min_EQ; |
| break; |
| case XcodeSDK::Type::WatchSimulator: |
| minimum_version_option << opt_mwatchos_simulator_version_min_EQ; |
| break; |
| case XcodeSDK::Type::watchOS: |
| minimum_version_option << opt_mwatchos_version_min_EQ; |
| break; |
| case XcodeSDK::Type::bridgeOS: |
| case XcodeSDK::Type::Linux: |
| case XcodeSDK::Type::unknown: |
| if (Log *log = GetLog(LLDBLog::Host)) { |
| XcodeSDK::Info info; |
| info.type = sdk_type; |
| LLDB_LOGF(log, "Clang modules on %s are not supported", |
| XcodeSDK::GetCanonicalName(info).c_str()); |
| } |
| return; |
| } |
| minimum_version_option << version.getAsString(); |
| options.emplace_back(std::string(minimum_version_option.GetString())); |
| } |
| |
| FileSpec sysroot_spec; |
| // Scope for mutex locker below |
| { |
| std::lock_guard<std::mutex> guard(m_mutex); |
| sysroot_spec = GetSDKDirectoryForModules(sdk_type); |
| } |
| |
| if (FileSystem::Instance().IsDirectory(sysroot_spec.GetPath())) { |
| options.push_back("-isysroot"); |
| options.push_back(sysroot_spec.GetPath()); |
| } |
| } |
| |
| ConstString PlatformDarwin::GetFullNameForDylib(ConstString basename) { |
| if (basename.IsEmpty()) |
| return basename; |
| |
| StreamString stream; |
| stream.Printf("lib%s.dylib", basename.GetCString()); |
| return ConstString(stream.GetString()); |
| } |
| |
| llvm::VersionTuple PlatformDarwin::GetOSVersion(Process *process) { |
| if (process && GetPluginName().contains("-simulator")) { |
| lldb_private::ProcessInstanceInfo proc_info; |
| if (Host::GetProcessInfo(process->GetID(), proc_info)) { |
| const Environment &env = proc_info.GetEnvironment(); |
| |
| llvm::VersionTuple result; |
| if (!result.tryParse(env.lookup("SIMULATOR_RUNTIME_VERSION"))) |
| return result; |
| |
| std::string dyld_root_path = env.lookup("DYLD_ROOT_PATH"); |
| if (!dyld_root_path.empty()) { |
| dyld_root_path += "/System/Library/CoreServices/SystemVersion.plist"; |
| ApplePropertyList system_version_plist(dyld_root_path.c_str()); |
| std::string product_version; |
| if (system_version_plist.GetValueAsString("ProductVersion", |
| product_version)) { |
| if (!result.tryParse(product_version)) |
| return result; |
| } |
| } |
| } |
| // For simulator platforms, do NOT call back through |
| // Platform::GetOSVersion() as it might call Process::GetHostOSVersion() |
| // which we don't want as it will be incorrect |
| return llvm::VersionTuple(); |
| } |
| |
| return Platform::GetOSVersion(process); |
| } |
| |
| lldb_private::FileSpec PlatformDarwin::LocateExecutable(const char *basename) { |
| // A collection of SBFileSpec whose SBFileSpec.m_directory members are filled |
| // in with any executable directories that should be searched. |
| static std::vector<FileSpec> g_executable_dirs; |
| |
| // Find the global list of directories that we will search for executables |
| // once so we don't keep doing the work over and over. |
| static llvm::once_flag g_once_flag; |
| llvm::call_once(g_once_flag, []() { |
| |
| // When locating executables, trust the DEVELOPER_DIR first if it is set |
| FileSpec xcode_contents_dir = HostInfo::GetXcodeContentsDirectory(); |
| if (xcode_contents_dir) { |
| FileSpec xcode_lldb_resources = xcode_contents_dir; |
| xcode_lldb_resources.AppendPathComponent("SharedFrameworks"); |
| xcode_lldb_resources.AppendPathComponent("LLDB.framework"); |
| xcode_lldb_resources.AppendPathComponent("Resources"); |
| if (FileSystem::Instance().Exists(xcode_lldb_resources)) { |
| FileSpec dir; |
| dir.GetDirectory().SetCString(xcode_lldb_resources.GetPath().c_str()); |
| g_executable_dirs.push_back(dir); |
| } |
| } |
| // Xcode might not be installed so we also check for the Command Line Tools. |
| FileSpec command_line_tools_dir = GetCommandLineToolsLibraryPath(); |
| if (command_line_tools_dir) { |
| FileSpec cmd_line_lldb_resources = command_line_tools_dir; |
| cmd_line_lldb_resources.AppendPathComponent("PrivateFrameworks"); |
| cmd_line_lldb_resources.AppendPathComponent("LLDB.framework"); |
| cmd_line_lldb_resources.AppendPathComponent("Resources"); |
| if (FileSystem::Instance().Exists(cmd_line_lldb_resources)) { |
| FileSpec dir; |
| dir.GetDirectory().SetCString( |
| cmd_line_lldb_resources.GetPath().c_str()); |
| g_executable_dirs.push_back(dir); |
| } |
| } |
| }); |
| |
| // Now search the global list of executable directories for the executable we |
| // are looking for |
| for (const auto &executable_dir : g_executable_dirs) { |
| FileSpec executable_file; |
| executable_file.GetDirectory() = executable_dir.GetDirectory(); |
| executable_file.GetFilename().SetCString(basename); |
| if (FileSystem::Instance().Exists(executable_file)) |
| return executable_file; |
| } |
| |
| return FileSpec(); |
| } |
| |
| lldb_private::Status |
| PlatformDarwin::LaunchProcess(lldb_private::ProcessLaunchInfo &launch_info) { |
| // Starting in Fall 2016 OSes, NSLog messages only get mirrored to stderr if |
| // the OS_ACTIVITY_DT_MODE environment variable is set. (It doesn't require |
| // any specific value; rather, it just needs to exist). We will set it here |
| // as long as the IDE_DISABLED_OS_ACTIVITY_DT_MODE flag is not set. Xcode |
| // makes use of IDE_DISABLED_OS_ACTIVITY_DT_MODE to tell |
| // LLDB *not* to muck with the OS_ACTIVITY_DT_MODE flag when they |
| // specifically want it unset. |
| const char *disable_env_var = "IDE_DISABLED_OS_ACTIVITY_DT_MODE"; |
| auto &env_vars = launch_info.GetEnvironment(); |
| if (!env_vars.count(disable_env_var)) { |
| // We want to make sure that OS_ACTIVITY_DT_MODE is set so that we get |
| // os_log and NSLog messages mirrored to the target process stderr. |
| env_vars.try_emplace("OS_ACTIVITY_DT_MODE", "enable"); |
| } |
| |
| // Let our parent class do the real launching. |
| return PlatformPOSIX::LaunchProcess(launch_info); |
| } |
| |
| lldb_private::Status PlatformDarwin::FindBundleBinaryInExecSearchPaths( |
| const ModuleSpec &module_spec, Process *process, ModuleSP &module_sp, |
| const FileSpecList *module_search_paths_ptr, |
| llvm::SmallVectorImpl<ModuleSP> *old_modules, bool *did_create_ptr) { |
| const FileSpec &platform_file = module_spec.GetFileSpec(); |
| // See if the file is present in any of the module_search_paths_ptr |
| // directories. |
| if (!module_sp && module_search_paths_ptr && platform_file) { |
| // create a vector of all the file / directory names in platform_file e.g. |
| // this might be |
| // /System/Library/PrivateFrameworks/UIFoundation.framework/UIFoundation |
| // |
| // We'll need to look in the module_search_paths_ptr directories for both |
| // "UIFoundation" and "UIFoundation.framework" -- most likely the latter |
| // will be the one we find there. |
| |
| FileSpec platform_pull_upart(platform_file); |
| std::vector<std::string> path_parts; |
| path_parts.push_back( |
| platform_pull_upart.GetLastPathComponent().AsCString()); |
| while (platform_pull_upart.RemoveLastPathComponent()) { |
| ConstString part = platform_pull_upart.GetLastPathComponent(); |
| path_parts.push_back(part.AsCString()); |
| } |
| const size_t path_parts_size = path_parts.size(); |
| |
| size_t num_module_search_paths = module_search_paths_ptr->GetSize(); |
| for (size_t i = 0; i < num_module_search_paths; ++i) { |
| Log *log_verbose = GetLog(LLDBLog::Host); |
| LLDB_LOGF( |
| log_verbose, |
| "PlatformRemoteDarwinDevice::GetSharedModule searching for binary in " |
| "search-path %s", |
| module_search_paths_ptr->GetFileSpecAtIndex(i).GetPath().c_str()); |
| // Create a new FileSpec with this module_search_paths_ptr plus just the |
| // filename ("UIFoundation"), then the parent dir plus filename |
| // ("UIFoundation.framework/UIFoundation") etc - up to four names (to |
| // handle "Foo.framework/Contents/MacOS/Foo") |
| |
| for (size_t j = 0; j < 4 && j < path_parts_size - 1; ++j) { |
| FileSpec path_to_try(module_search_paths_ptr->GetFileSpecAtIndex(i)); |
| |
| // Add the components backwards. For |
| // .../PrivateFrameworks/UIFoundation.framework/UIFoundation path_parts |
| // is |
| // [0] UIFoundation |
| // [1] UIFoundation.framework |
| // [2] PrivateFrameworks |
| // |
| // and if 'j' is 2, we want to append path_parts[1] and then |
| // path_parts[0], aka 'UIFoundation.framework/UIFoundation', to the |
| // module_search_paths_ptr path. |
| |
| for (int k = j; k >= 0; --k) { |
| path_to_try.AppendPathComponent(path_parts[k]); |
| } |
| |
| if (FileSystem::Instance().Exists(path_to_try)) { |
| ModuleSpec new_module_spec(module_spec); |
| new_module_spec.GetFileSpec() = path_to_try; |
| Status new_error( |
| Platform::GetSharedModule(new_module_spec, process, module_sp, |
| nullptr, old_modules, did_create_ptr)); |
| |
| if (module_sp) { |
| module_sp->SetPlatformFileSpec(path_to_try); |
| return new_error; |
| } |
| } |
| } |
| } |
| } |
| return Status(); |
| } |
| |
| std::string PlatformDarwin::FindComponentInPath(llvm::StringRef path, |
| llvm::StringRef component) { |
| auto begin = llvm::sys::path::begin(path); |
| auto end = llvm::sys::path::end(path); |
| for (auto it = begin; it != end; ++it) { |
| if (it->contains(component)) { |
| llvm::SmallString<128> buffer; |
| llvm::sys::path::append(buffer, begin, ++it, |
| llvm::sys::path::Style::posix); |
| return buffer.str().str(); |
| } |
| } |
| return {}; |
| } |
| |
| FileSpec PlatformDarwin::GetCurrentToolchainDirectory() { |
| if (FileSpec fspec = HostInfo::GetShlibDir()) |
| return FileSpec(FindComponentInPath(fspec.GetPath(), ".xctoolchain")); |
| return {}; |
| } |
| |
| FileSpec PlatformDarwin::GetCurrentCommandLineToolsDirectory() { |
| if (FileSpec fspec = HostInfo::GetShlibDir()) |
| return FileSpec(FindComponentInPath(fspec.GetPath(), "CommandLineTools")); |
| return {}; |
| } |
| |
| llvm::Triple::OSType PlatformDarwin::GetHostOSType() { |
| #if !defined(__APPLE__) |
| return llvm::Triple::MacOSX; |
| #else |
| #if TARGET_OS_OSX |
| return llvm::Triple::MacOSX; |
| #elif TARGET_OS_IOS |
| return llvm::Triple::IOS; |
| #elif TARGET_OS_WATCH |
| return llvm::Triple::WatchOS; |
| #elif TARGET_OS_TV |
| return llvm::Triple::TvOS; |
| #elif TARGET_OS_BRIDGE |
| return llvm::Triple::BridgeOS; |
| #else |
| #error "LLDB being compiled for an unrecognized Darwin OS" |
| #endif |
| #endif // __APPLE__ |
| } |
