diff options
Diffstat (limited to 'source/Host/common/Symbols.cpp')
| -rw-r--r-- | source/Host/common/Symbols.cpp | 306 |
1 files changed, 220 insertions, 86 deletions
diff --git a/source/Host/common/Symbols.cpp b/source/Host/common/Symbols.cpp index 41f465a..2b63f46 100644 --- a/source/Host/common/Symbols.cpp +++ b/source/Host/common/Symbols.cpp @@ -18,137 +18,271 @@ #include "lldb/Core/UUID.h" #include "lldb/Symbol/ObjectFile.h" #include "lldb/Target/Target.h" +#include "lldb/Utility/SafeMachO.h" + +#include "llvm/Support/FileSystem.h" + +// From MacOSX system header "mach/machine.h" +typedef int cpu_type_t; +typedef int cpu_subtype_t; using namespace lldb; using namespace lldb_private; +using namespace llvm::MachO; -#if defined (__linux__) || defined (__FreeBSD__) +#if defined(__APPLE__) -FileSpec -Symbols::LocateExecutableObjectFile (const ModuleSpec &module_spec) -{ - // FIXME - return FileSpec(); -} +// Forward declaration of method defined in source/Host/macosx/Symbols.cpp +int +LocateMacOSXFilesUsingDebugSymbols +( + const ModuleSpec &module_spec, + FileSpec *out_exec_fspec, // If non-NULL, try and find the executable + FileSpec *out_dsym_fspec // If non-NULL try and find the debug symbol file +); -FileSpec -Symbols::LocateExecutableSymbolFile (const ModuleSpec &module_spec) -{ - const char *symbol_filename = module_spec.GetSymbolFileSpec().GetFilename().AsCString(); - if (!symbol_filename || !symbol_filename[0]) - return FileSpec(); +#else - FileSpecList debug_file_search_paths (Target::GetDefaultDebugFileSearchPaths()); - - // Add module directory. - const ConstString &file_dir = module_spec.GetFileSpec().GetDirectory(); - debug_file_search_paths.AppendIfUnique (FileSpec(file_dir.AsCString("."), true)); - - // Add current working directory. - debug_file_search_paths.AppendIfUnique (FileSpec(".", true)); +int +LocateMacOSXFilesUsingDebugSymbols +( + const ModuleSpec &module_spec, + FileSpec *out_exec_fspec, // If non-NULL, try and find the executable + FileSpec *out_dsym_fspec // If non-NULL try and find the debug symbol file +) { + // Cannot find MacOSX files using debug symbols on non MacOSX. + return 0; +} - // Add /usr/lib/debug directory. - debug_file_search_paths.AppendIfUnique (FileSpec("/usr/lib/debug", true)); +#endif - std::string uuid_str; - const UUID &module_uuid = module_spec.GetUUID(); - if (module_uuid.IsValid()) +static bool +FileAtPathContainsArchAndUUID (const FileSpec &file_fspec, const ArchSpec *arch, const lldb_private::UUID *uuid) +{ + ModuleSpecList module_specs; + if (ObjectFile::GetModuleSpecifications(file_fspec, 0, 0, module_specs)) { - // Some debug files are stored in the .build-id directory like this: - // /usr/lib/debug/.build-id/ff/e7fe727889ad82bb153de2ad065b2189693315.debug - uuid_str = module_uuid.GetAsString(""); - uuid_str.insert (2, 1, '/'); - uuid_str = uuid_str + ".debug"; + ModuleSpec spec; + for (size_t i = 0; i < module_specs.GetSize(); ++i) + { + assert(module_specs.GetModuleSpecAtIndex(i, spec)); + if ((uuid == NULL || (spec.GetUUIDPtr() && spec.GetUUID() == *uuid)) && + (arch == NULL || (spec.GetArchitecturePtr() && spec.GetArchitecture().IsCompatibleMatch(*arch)))) + { + return true; + } + } } + return false; +} - // Get directory of our module. Needed to check debug files like this: - // /usr/lib/debug/usr/lib/library.so.debug - std::string module_directory = module_spec.GetFileSpec().GetDirectory().AsCString(); - - size_t num_directories = debug_file_search_paths.GetSize(); - for (size_t idx = 0; idx < num_directories; ++idx) +static bool +LocateDSYMInVincinityOfExecutable (const ModuleSpec &module_spec, FileSpec &dsym_fspec) +{ + const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); + if (exec_fspec) { - FileSpec dirspec = debug_file_search_paths.GetFileSpecAtIndex (idx); - dirspec.ResolvePath(); - if (!dirspec.Exists() || !dirspec.IsDirectory()) - continue; - - std::vector<std::string> files; - std::string dirname = dirspec.GetPath(); - - files.push_back (dirname + "/" + symbol_filename); - files.push_back (dirname + "/.debug/" + symbol_filename); - files.push_back (dirname + "/.build-id/" + uuid_str); - files.push_back (dirname + module_directory + "/" + symbol_filename); - - const uint32_t num_files = files.size(); - for (size_t idx_file = 0; idx_file < num_files; ++idx_file) + char path[PATH_MAX]; + if (exec_fspec->GetPath(path, sizeof(path))) { - const std::string &filename = files[idx_file]; - FileSpec file_spec (filename.c_str(), true); + // Make sure the module isn't already just a dSYM file... + if (strcasestr(path, ".dSYM/Contents/Resources/DWARF") == NULL) + { + size_t obj_file_path_length = strlen(path); + ::strncat(path, ".dSYM/Contents/Resources/DWARF/", sizeof(path) - strlen(path) - 1); + ::strncat(path, exec_fspec->GetFilename().AsCString(), sizeof(path) - strlen(path) - 1); - if (file_spec == module_spec.GetFileSpec()) - continue; + dsym_fspec.SetFile(path, false); - if (file_spec.Exists()) - { - lldb_private::ModuleSpecList specs; - const size_t num_specs = ObjectFile::GetModuleSpecifications (file_spec, 0, 0, specs); - assert (num_specs <= 1 && "Symbol Vendor supports only a single architecture"); - if (num_specs == 1) + ModuleSpecList module_specs; + ModuleSpec matched_module_spec; + if (dsym_fspec.Exists() && + FileAtPathContainsArchAndUUID(dsym_fspec, module_spec.GetArchitecturePtr(), module_spec.GetUUIDPtr())) { - ModuleSpec mspec; - if (specs.GetModuleSpecAtIndex (0, mspec)) + return true; + } + else + { + path[obj_file_path_length] = '\0'; + + char *last_dot = strrchr(path, '.'); + while (last_dot != NULL && last_dot[0]) { - if (mspec.GetUUID() == module_uuid) - return file_spec; + char *next_slash = strchr(last_dot, '/'); + if (next_slash != NULL) + { + *next_slash = '\0'; + ::strncat(path, ".dSYM/Contents/Resources/DWARF/", sizeof(path) - strlen(path) - 1); + ::strncat(path, exec_fspec->GetFilename().AsCString(), sizeof(path) - strlen(path) - 1); + dsym_fspec.SetFile(path, false); + if (dsym_fspec.Exists() && + FileAtPathContainsArchAndUUID(dsym_fspec, module_spec.GetArchitecturePtr(), module_spec.GetUUIDPtr())) + { + return true; + } + else + { + *last_dot = '\0'; + char *prev_slash = strrchr(path, '/'); + if (prev_slash != NULL) + *prev_slash = '\0'; + else + break; + } + } + else + { + break; + } } } } } } - - return FileSpec(); + dsym_fspec.Clear(); + return false; } FileSpec -Symbols::FindSymbolFileInBundle (const FileSpec& symfile_bundle, - const lldb_private::UUID *uuid, - const ArchSpec *arch) +LocateExecutableSymbolFileDsym (const ModuleSpec &module_spec) { - // FIXME - return FileSpec(); -} + const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); + const ArchSpec *arch = module_spec.GetArchitecturePtr(); + const UUID *uuid = module_spec.GetUUIDPtr(); -bool -Symbols::DownloadObjectAndSymbolFile (ModuleSpec &module_spec, bool force_lookup) -{ - // Fill in the module_spec.GetFileSpec() for the object file and/or the - // module_spec.GetSymbolFileSpec() for the debug symbols file. - return false; -} + Timer scoped_timer (__PRETTY_FUNCTION__, + "LocateExecutableSymbolFileDsym (file = %s, arch = %s, uuid = %p)", + exec_fspec ? exec_fspec->GetFilename().AsCString ("<NULL>") : "<NULL>", + arch ? arch->GetArchitectureName() : "<NULL>", + (void*)uuid); -#elif !defined (__APPLE__) + FileSpec symbol_fspec; + // First try and find the dSYM in the same directory as the executable or in + // an appropriate parent directory + if (LocateDSYMInVincinityOfExecutable (module_spec, symbol_fspec) == false) + { + // We failed to easily find the dSYM above, so use DebugSymbols + LocateMacOSXFilesUsingDebugSymbols (module_spec, NULL, &symbol_fspec); + } + return symbol_fspec; +} FileSpec Symbols::LocateExecutableObjectFile (const ModuleSpec &module_spec) { - // FIXME - return FileSpec(); + const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); + const ArchSpec *arch = module_spec.GetArchitecturePtr(); + const UUID *uuid = module_spec.GetUUIDPtr(); + Timer scoped_timer (__PRETTY_FUNCTION__, + "LocateExecutableObjectFile (file = %s, arch = %s, uuid = %p)", + exec_fspec ? exec_fspec->GetFilename().AsCString ("<NULL>") : "<NULL>", + arch ? arch->GetArchitectureName() : "<NULL>", + (void*)uuid); + + FileSpec objfile_fspec; + ModuleSpecList module_specs; + ModuleSpec matched_module_spec; + if (exec_fspec && + ObjectFile::GetModuleSpecifications(*exec_fspec, 0, 0, module_specs) && + module_specs.FindMatchingModuleSpec(module_spec, matched_module_spec)) + { + objfile_fspec = exec_fspec; + } + else + { + LocateMacOSXFilesUsingDebugSymbols (module_spec, &objfile_fspec, NULL); + } + return objfile_fspec; } FileSpec Symbols::LocateExecutableSymbolFile (const ModuleSpec &module_spec) { - // FIXME - return FileSpec(); + const char *symbol_filename = module_spec.GetSymbolFileSpec().GetFilename().AsCString(); + if (symbol_filename && symbol_filename[0]) + { + FileSpecList debug_file_search_paths (Target::GetDefaultDebugFileSearchPaths()); + + // Add module directory. + const ConstString &file_dir = module_spec.GetFileSpec().GetDirectory(); + debug_file_search_paths.AppendIfUnique (FileSpec(file_dir.AsCString("."), true)); + + // Add current working directory. + debug_file_search_paths.AppendIfUnique (FileSpec(".", true)); + + // Add /usr/lib/debug directory. + debug_file_search_paths.AppendIfUnique (FileSpec("/usr/lib/debug", true)); + + std::string uuid_str; + const UUID &module_uuid = module_spec.GetUUID(); + if (module_uuid.IsValid()) + { + // Some debug files are stored in the .build-id directory like this: + // /usr/lib/debug/.build-id/ff/e7fe727889ad82bb153de2ad065b2189693315.debug + uuid_str = module_uuid.GetAsString(""); + uuid_str.insert (2, 1, '/'); + uuid_str = uuid_str + ".debug"; + } + + // Get directory of our module. Needed to check debug files like this: + // /usr/lib/debug/usr/lib/library.so.debug + std::string module_directory = module_spec.GetFileSpec().GetDirectory().AsCString(); + + size_t num_directories = debug_file_search_paths.GetSize(); + for (size_t idx = 0; idx < num_directories; ++idx) + { + FileSpec dirspec = debug_file_search_paths.GetFileSpecAtIndex (idx); + dirspec.ResolvePath(); + if (!dirspec.Exists() || !dirspec.IsDirectory()) + continue; + + std::vector<std::string> files; + std::string dirname = dirspec.GetPath(); + + files.push_back (dirname + "/" + symbol_filename); + files.push_back (dirname + "/.debug/" + symbol_filename); + files.push_back (dirname + "/.build-id/" + uuid_str); + files.push_back (dirname + module_directory + "/" + symbol_filename); + + const uint32_t num_files = files.size(); + for (size_t idx_file = 0; idx_file < num_files; ++idx_file) + { + const std::string &filename = files[idx_file]; + FileSpec file_spec (filename.c_str(), true); + + if (llvm::sys::fs::equivalent (file_spec.GetPath(), module_spec.GetFileSpec().GetPath())) + continue; + + if (file_spec.Exists()) + { + lldb_private::ModuleSpecList specs; + const size_t num_specs = ObjectFile::GetModuleSpecifications (file_spec, 0, 0, specs); + assert (num_specs <= 1 && "Symbol Vendor supports only a single architecture"); + if (num_specs == 1) + { + ModuleSpec mspec; + if (specs.GetModuleSpecAtIndex (0, mspec)) + { + if (mspec.GetUUID() == module_uuid) + return file_spec; + } + } + } + } + } + } + + return LocateExecutableSymbolFileDsym(module_spec); } +#if !defined (__APPLE__) + FileSpec Symbols::FindSymbolFileInBundle (const FileSpec& symfile_bundle, const lldb_private::UUID *uuid, const ArchSpec *arch) { + // FIXME return FileSpec(); } |
