| //===-- Symbols.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/Host/Symbols.h" |
| |
| // C Includes |
| #include <dirent.h> |
| #include <pwd.h> |
| #include "lldb/Utility/SafeMachO.h" |
| |
| // C++ Includes |
| // Other libraries and framework includes |
| #include <CoreFoundation/CoreFoundation.h> |
| |
| // Project includes |
| #include "lldb/Core/ArchSpec.h" |
| #include "lldb/Core/DataBuffer.h" |
| #include "lldb/Core/DataExtractor.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/ModuleSpec.h" |
| #include "lldb/Core/StreamString.h" |
| #include "lldb/Core/Timer.h" |
| #include "lldb/Core/UUID.h" |
| #include "lldb/Host/Endian.h" |
| #include "lldb/Host/Host.h" |
| #include "lldb/Utility/CleanUp.h" |
| #include "Host/macosx/cfcpp/CFCBundle.h" |
| #include "Host/macosx/cfcpp/CFCData.h" |
| #include "Host/macosx/cfcpp/CFCReleaser.h" |
| #include "Host/macosx/cfcpp/CFCString.h" |
| #include "mach/machine.h" |
| |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace llvm::MachO; |
| |
| #if !defined (__arm__) && !defined (__arm64__) && !defined (__aarch64__) // No DebugSymbols on the iOS devices |
| extern "C" { |
| |
| CFURLRef DBGCopyFullDSYMURLForUUID (CFUUIDRef uuid, CFURLRef exec_url); |
| CFDictionaryRef DBGCopyDSYMPropertyLists (CFURLRef dsym_url); |
| |
| } |
| #endif |
| |
| static bool |
| SkinnyMachOFileContainsArchAndUUID |
| ( |
| const FileSpec &file_spec, |
| const ArchSpec *arch, |
| const lldb_private::UUID *uuid, // the UUID we are looking for |
| off_t file_offset, |
| DataExtractor& data, |
| lldb::offset_t data_offset, |
| const uint32_t magic |
| ) |
| { |
| assert(magic == MH_MAGIC || magic == MH_CIGAM || magic == MH_MAGIC_64 || magic == MH_CIGAM_64); |
| if (magic == MH_MAGIC || magic == MH_MAGIC_64) |
| data.SetByteOrder (lldb::endian::InlHostByteOrder()); |
| else if (lldb::endian::InlHostByteOrder() == eByteOrderBig) |
| data.SetByteOrder (eByteOrderLittle); |
| else |
| data.SetByteOrder (eByteOrderBig); |
| |
| uint32_t i; |
| const uint32_t cputype = data.GetU32(&data_offset); // cpu specifier |
| const uint32_t cpusubtype = data.GetU32(&data_offset); // machine specifier |
| data_offset+=4; // Skip mach file type |
| const uint32_t ncmds = data.GetU32(&data_offset); // number of load commands |
| const uint32_t sizeofcmds = data.GetU32(&data_offset); // the size of all the load commands |
| data_offset+=4; // Skip flags |
| |
| // Check the architecture if we have a valid arch pointer |
| if (arch) |
| { |
| ArchSpec file_arch(eArchTypeMachO, cputype, cpusubtype); |
| |
| if (!file_arch.IsCompatibleMatch(*arch)) |
| return false; |
| } |
| |
| // The file exists, and if a valid arch pointer was passed in we know |
| // if already matches, so we can return if we aren't looking for a specific |
| // UUID |
| if (uuid == NULL) |
| return true; |
| |
| if (magic == MH_CIGAM_64 || magic == MH_MAGIC_64) |
| data_offset += 4; // Skip reserved field for in mach_header_64 |
| |
| // Make sure we have enough data for all the load commands |
| if (magic == MH_CIGAM_64 || magic == MH_MAGIC_64) |
| { |
| if (data.GetByteSize() < sizeof(struct mach_header_64) + sizeofcmds) |
| { |
| DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header_64) + sizeofcmds)); |
| data.SetData (data_buffer_sp); |
| } |
| } |
| else |
| { |
| if (data.GetByteSize() < sizeof(struct mach_header) + sizeofcmds) |
| { |
| DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, sizeof(struct mach_header) + sizeofcmds)); |
| data.SetData (data_buffer_sp); |
| } |
| } |
| |
| for (i=0; i<ncmds; i++) |
| { |
| const lldb::offset_t cmd_offset = data_offset; // Save this data_offset in case parsing of the segment goes awry! |
| uint32_t cmd = data.GetU32(&data_offset); |
| uint32_t cmd_size = data.GetU32(&data_offset); |
| if (cmd == LC_UUID) |
| { |
| lldb_private::UUID file_uuid (data.GetData(&data_offset, 16), 16); |
| if (file_uuid == *uuid) |
| return true; |
| return false; |
| } |
| data_offset = cmd_offset + cmd_size; |
| } |
| return false; |
| } |
| |
| bool |
| UniversalMachOFileContainsArchAndUUID |
| ( |
| const FileSpec &file_spec, |
| const ArchSpec *arch, |
| const lldb_private::UUID *uuid, |
| off_t file_offset, |
| DataExtractor& data, |
| lldb::offset_t data_offset, |
| const uint32_t magic |
| ) |
| { |
| assert(magic == FAT_MAGIC || magic == FAT_CIGAM); |
| |
| // Universal mach-o files always have their headers encoded as BIG endian |
| data.SetByteOrder(eByteOrderBig); |
| |
| uint32_t i; |
| const uint32_t nfat_arch = data.GetU32(&data_offset); // number of structs that follow |
| const uint32_t fat_header_and_arch_size = sizeof(struct fat_header) + nfat_arch * sizeof(struct fat_arch); |
| if (data.GetByteSize() < fat_header_and_arch_size) |
| { |
| DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, fat_header_and_arch_size)); |
| data.SetData (data_buffer_sp); |
| } |
| |
| for (i=0; i<nfat_arch; i++) |
| { |
| cpu_type_t arch_cputype = data.GetU32(&data_offset); // cpu specifier (int) |
| cpu_subtype_t arch_cpusubtype = data.GetU32(&data_offset); // machine specifier (int) |
| uint32_t arch_offset = data.GetU32(&data_offset); // file offset to this object file |
| // uint32_t arch_size = data.GetU32(&data_offset); // size of this object file |
| // uint32_t arch_align = data.GetU32(&data_offset); // alignment as a power of 2 |
| data_offset += 8; // Skip size and align as we don't need those |
| // Only process this slice if the cpu type/subtype matches |
| if (arch) |
| { |
| ArchSpec fat_arch(eArchTypeMachO, arch_cputype, arch_cpusubtype); |
| if (!fat_arch.IsExactMatch(*arch)) |
| continue; |
| } |
| |
| // Create a buffer with only the arch slice date in it |
| DataExtractor arch_data; |
| DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset + arch_offset, 0x1000)); |
| arch_data.SetData(data_buffer_sp); |
| lldb::offset_t arch_data_offset = 0; |
| uint32_t arch_magic = arch_data.GetU32(&arch_data_offset); |
| |
| switch (arch_magic) |
| { |
| case MH_MAGIC: |
| case MH_CIGAM: |
| case MH_MAGIC_64: |
| case MH_CIGAM_64: |
| if (SkinnyMachOFileContainsArchAndUUID (file_spec, arch, uuid, file_offset + arch_offset, arch_data, arch_data_offset, arch_magic)) |
| return true; |
| break; |
| } |
| } |
| return false; |
| } |
| |
| static bool |
| FileAtPathContainsArchAndUUID |
| ( |
| const FileSpec &file_spec, |
| const ArchSpec *arch, |
| const lldb_private::UUID *uuid |
| ) |
| { |
| DataExtractor data; |
| off_t file_offset = 0; |
| DataBufferSP data_buffer_sp (file_spec.ReadFileContents (file_offset, 0x1000)); |
| |
| if (data_buffer_sp && data_buffer_sp->GetByteSize() > 0) |
| { |
| data.SetData(data_buffer_sp); |
| |
| lldb::offset_t data_offset = 0; |
| uint32_t magic = data.GetU32(&data_offset); |
| |
| switch (magic) |
| { |
| // 32 bit mach-o file |
| case MH_MAGIC: |
| case MH_CIGAM: |
| case MH_MAGIC_64: |
| case MH_CIGAM_64: |
| return SkinnyMachOFileContainsArchAndUUID (file_spec, arch, uuid, file_offset, data, data_offset, magic); |
| |
| // fat mach-o file |
| case FAT_MAGIC: |
| case FAT_CIGAM: |
| return UniversalMachOFileContainsArchAndUUID (file_spec, arch, uuid, file_offset, data, data_offset, magic); |
| |
| default: |
| break; |
| } |
| } |
| return false; |
| } |
| |
| FileSpec |
| Symbols::FindSymbolFileInBundle (const FileSpec& dsym_bundle_fspec, |
| const lldb_private::UUID *uuid, |
| const ArchSpec *arch) |
| { |
| char path[PATH_MAX]; |
| |
| FileSpec dsym_fspec; |
| |
| if (dsym_bundle_fspec.GetPath(path, sizeof(path))) |
| { |
| ::strncat (path, "/Contents/Resources/DWARF", sizeof(path) - strlen(path) - 1); |
| |
| lldb_utility::CleanUp <DIR *, int> dirp (opendir(path), NULL, closedir); |
| if (dirp.is_valid()) |
| { |
| dsym_fspec.GetDirectory().SetCString(path); |
| struct dirent* dp; |
| while ((dp = readdir(dirp.get())) != NULL) |
| { |
| // Only search directories |
| if (dp->d_type == DT_DIR || dp->d_type == DT_UNKNOWN) |
| { |
| if (dp->d_namlen == 1 && dp->d_name[0] == '.') |
| continue; |
| |
| if (dp->d_namlen == 2 && dp->d_name[0] == '.' && dp->d_name[1] == '.') |
| continue; |
| } |
| |
| if (dp->d_type == DT_REG || dp->d_type == DT_UNKNOWN) |
| { |
| dsym_fspec.GetFilename().SetCString(dp->d_name); |
| if (FileAtPathContainsArchAndUUID (dsym_fspec, arch, uuid)) |
| return dsym_fspec; |
| } |
| } |
| } |
| } |
| dsym_fspec.Clear(); |
| return dsym_fspec; |
| } |
| |
| static 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 |
| ) |
| { |
| int items_found = 0; |
| |
| if (out_exec_fspec) |
| out_exec_fspec->Clear(); |
| |
| if (out_dsym_fspec) |
| out_dsym_fspec->Clear(); |
| |
| #if !defined (__arm__) && !defined (__arm64__) && !defined (__aarch64__) // No DebugSymbols on the iOS devices |
| |
| const UUID *uuid = module_spec.GetUUIDPtr(); |
| const ArchSpec *arch = module_spec.GetArchitecturePtr(); |
| |
| if (uuid && uuid->IsValid()) |
| { |
| // Try and locate the dSYM file using DebugSymbols first |
| const UInt8 *module_uuid = (const UInt8 *)uuid->GetBytes(); |
| if (module_uuid != NULL) |
| { |
| CFCReleaser<CFUUIDRef> module_uuid_ref(::CFUUIDCreateWithBytes (NULL, |
| module_uuid[0], |
| module_uuid[1], |
| module_uuid[2], |
| module_uuid[3], |
| module_uuid[4], |
| module_uuid[5], |
| module_uuid[6], |
| module_uuid[7], |
| module_uuid[8], |
| module_uuid[9], |
| module_uuid[10], |
| module_uuid[11], |
| module_uuid[12], |
| module_uuid[13], |
| module_uuid[14], |
| module_uuid[15])); |
| |
| if (module_uuid_ref.get()) |
| { |
| CFCReleaser<CFURLRef> exec_url; |
| const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); |
| if (exec_fspec) |
| { |
| char exec_cf_path[PATH_MAX]; |
| if (exec_fspec->GetPath(exec_cf_path, sizeof(exec_cf_path))) |
| exec_url.reset(::CFURLCreateFromFileSystemRepresentation (NULL, |
| (const UInt8 *)exec_cf_path, |
| strlen(exec_cf_path), |
| FALSE)); |
| } |
| |
| CFCReleaser<CFURLRef> dsym_url (::DBGCopyFullDSYMURLForUUID(module_uuid_ref.get(), exec_url.get())); |
| char path[PATH_MAX]; |
| |
| if (dsym_url.get()) |
| { |
| if (out_dsym_fspec) |
| { |
| if (::CFURLGetFileSystemRepresentation (dsym_url.get(), true, (UInt8*)path, sizeof(path)-1)) |
| { |
| out_dsym_fspec->SetFile(path, path[0] == '~'); |
| |
| if (out_dsym_fspec->GetFileType () == FileSpec::eFileTypeDirectory) |
| { |
| *out_dsym_fspec = Symbols::FindSymbolFileInBundle (*out_dsym_fspec, uuid, arch); |
| if (*out_dsym_fspec) |
| ++items_found; |
| } |
| else |
| { |
| ++items_found; |
| } |
| } |
| } |
| |
| CFCReleaser<CFDictionaryRef> dict(::DBGCopyDSYMPropertyLists (dsym_url.get())); |
| CFDictionaryRef uuid_dict = NULL; |
| if (dict.get()) |
| { |
| CFCString uuid_cfstr (uuid->GetAsString().c_str()); |
| uuid_dict = static_cast<CFDictionaryRef>(::CFDictionaryGetValue (dict.get(), uuid_cfstr.get())); |
| if (uuid_dict) |
| { |
| |
| CFStringRef actual_src_cfpath = static_cast<CFStringRef>(::CFDictionaryGetValue (uuid_dict, CFSTR("DBGSourcePath"))); |
| if (actual_src_cfpath) |
| { |
| CFStringRef build_src_cfpath = static_cast<CFStringRef>(::CFDictionaryGetValue (uuid_dict, CFSTR("DBGBuildSourcePath"))); |
| if (build_src_cfpath) |
| { |
| char actual_src_path[PATH_MAX]; |
| char build_src_path[PATH_MAX]; |
| ::CFStringGetFileSystemRepresentation (actual_src_cfpath, actual_src_path, sizeof(actual_src_path)); |
| ::CFStringGetFileSystemRepresentation (build_src_cfpath, build_src_path, sizeof(build_src_path)); |
| if (actual_src_path[0] == '~') |
| { |
| FileSpec resolved_source_path(actual_src_path, true); |
| resolved_source_path.GetPath(actual_src_path, sizeof(actual_src_path)); |
| } |
| module_spec.GetSourceMappingList().Append (ConstString(build_src_path), ConstString(actual_src_path), true); |
| } |
| } |
| } |
| } |
| |
| if (out_exec_fspec) |
| { |
| bool success = false; |
| if (uuid_dict) |
| { |
| CFStringRef exec_cf_path = static_cast<CFStringRef>(::CFDictionaryGetValue (uuid_dict, CFSTR("DBGSymbolRichExecutable"))); |
| if (exec_cf_path && ::CFStringGetFileSystemRepresentation (exec_cf_path, path, sizeof(path))) |
| { |
| ++items_found; |
| out_exec_fspec->SetFile(path, path[0] == '~'); |
| if (out_exec_fspec->Exists()) |
| success = true; |
| } |
| } |
| |
| if (!success) |
| { |
| // No dictionary, check near the dSYM bundle for an executable that matches... |
| if (::CFURLGetFileSystemRepresentation (dsym_url.get(), true, (UInt8*)path, sizeof(path)-1)) |
| { |
| char *dsym_extension_pos = ::strstr (path, ".dSYM"); |
| if (dsym_extension_pos) |
| { |
| *dsym_extension_pos = '\0'; |
| FileSpec file_spec (path, true); |
| switch (file_spec.GetFileType()) |
| { |
| case FileSpec::eFileTypeDirectory: // Bundle directory? |
| { |
| CFCBundle bundle (path); |
| CFCReleaser<CFURLRef> bundle_exe_url (bundle.CopyExecutableURL ()); |
| if (bundle_exe_url.get()) |
| { |
| if (::CFURLGetFileSystemRepresentation (bundle_exe_url.get(), true, (UInt8*)path, sizeof(path)-1)) |
| { |
| FileSpec bundle_exe_file_spec (path, true); |
| |
| if (FileAtPathContainsArchAndUUID (bundle_exe_file_spec, arch, uuid)) |
| { |
| ++items_found; |
| *out_exec_fspec = bundle_exe_file_spec; |
| } |
| } |
| } |
| } |
| break; |
| |
| case FileSpec::eFileTypePipe: // Forget pipes |
| case FileSpec::eFileTypeSocket: // We can't process socket files |
| case FileSpec::eFileTypeInvalid: // File doesn't exist... |
| break; |
| |
| case FileSpec::eFileTypeUnknown: |
| case FileSpec::eFileTypeRegular: |
| case FileSpec::eFileTypeSymbolicLink: |
| case FileSpec::eFileTypeOther: |
| if (FileAtPathContainsArchAndUUID (file_spec, arch, uuid)) |
| { |
| ++items_found; |
| *out_exec_fspec = file_spec; |
| } |
| break; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| #endif // #if !defined (__arm__) && !defined (__arm64__) && !defined (__aarch64__) |
| |
| return items_found; |
| } |
| |
| static bool |
| LocateDSYMInVincinityOfExecutable (const ModuleSpec &module_spec, FileSpec &dsym_fspec) |
| { |
| const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); |
| if (exec_fspec) |
| { |
| char path[PATH_MAX]; |
| if (exec_fspec->GetPath(path, sizeof(path))) |
| { |
| // 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); |
| strlcat(path, ".dSYM/Contents/Resources/DWARF/", sizeof(path)); |
| strlcat(path, exec_fspec->GetFilename().AsCString(), sizeof(path)); |
| |
| dsym_fspec.SetFile(path, false); |
| |
| if (dsym_fspec.Exists() && FileAtPathContainsArchAndUUID (dsym_fspec, module_spec.GetArchitecturePtr(), module_spec.GetUUIDPtr())) |
| { |
| return true; |
| } |
| else |
| { |
| path[obj_file_path_length] = '\0'; |
| |
| char *last_dot = strrchr(path, '.'); |
| while (last_dot != NULL && last_dot[0]) |
| { |
| char *next_slash = strchr(last_dot, '/'); |
| if (next_slash != NULL) |
| { |
| *next_slash = '\0'; |
| strlcat(path, ".dSYM/Contents/Resources/DWARF/", sizeof(path)); |
| strlcat(path, exec_fspec->GetFilename().AsCString(), sizeof(path)); |
| 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; |
| } |
| } |
| } |
| } |
| } |
| } |
| dsym_fspec.Clear(); |
| return false; |
| } |
| |
| FileSpec |
| Symbols::LocateExecutableObjectFile (const ModuleSpec &module_spec) |
| { |
| 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>", |
| uuid); |
| |
| FileSpec objfile_fspec; |
| if (exec_fspec && FileAtPathContainsArchAndUUID (exec_fspec, arch, uuid)) |
| objfile_fspec = exec_fspec; |
| else |
| LocateMacOSXFilesUsingDebugSymbols (module_spec, &objfile_fspec, NULL); |
| return objfile_fspec; |
| } |
| |
| FileSpec |
| Symbols::LocateExecutableSymbolFile (const ModuleSpec &module_spec) |
| { |
| const FileSpec *exec_fspec = module_spec.GetFileSpecPtr(); |
| const ArchSpec *arch = module_spec.GetArchitecturePtr(); |
| const UUID *uuid = module_spec.GetUUIDPtr(); |
| |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "LocateExecutableSymbolFile (file = %s, arch = %s, uuid = %p)", |
| exec_fspec ? exec_fspec->GetFilename().AsCString ("<NULL>") : "<NULL>", |
| arch ? arch->GetArchitectureName() : "<NULL>", |
| uuid); |
| |
| 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; |
| } |
| |
| |
| static bool |
| GetModuleSpecInfoFromUUIDDictionary (CFDictionaryRef uuid_dict, ModuleSpec &module_spec) |
| { |
| bool success = false; |
| if (uuid_dict != NULL && CFGetTypeID (uuid_dict) == CFDictionaryGetTypeID ()) |
| { |
| std::string str; |
| CFStringRef cf_str; |
| |
| cf_str = (CFStringRef)CFDictionaryGetValue ((CFDictionaryRef) uuid_dict, CFSTR("DBGSymbolRichExecutable")); |
| if (cf_str && CFGetTypeID (cf_str) == CFStringGetTypeID ()) |
| { |
| if (CFCString::FileSystemRepresentation(cf_str, str)) |
| module_spec.GetFileSpec().SetFile (str.c_str(), true); |
| } |
| |
| cf_str = (CFStringRef)CFDictionaryGetValue ((CFDictionaryRef) uuid_dict, CFSTR("DBGDSYMPath")); |
| if (cf_str && CFGetTypeID (cf_str) == CFStringGetTypeID ()) |
| { |
| if (CFCString::FileSystemRepresentation(cf_str, str)) |
| { |
| module_spec.GetSymbolFileSpec().SetFile (str.c_str(), true); |
| success = true; |
| } |
| } |
| |
| cf_str = (CFStringRef)CFDictionaryGetValue ((CFDictionaryRef) uuid_dict, CFSTR("DBGArchitecture")); |
| if (cf_str && CFGetTypeID (cf_str) == CFStringGetTypeID ()) |
| { |
| if (CFCString::FileSystemRepresentation(cf_str, str)) |
| module_spec.GetArchitecture().SetTriple(str.c_str()); |
| } |
| |
| std::string DBGBuildSourcePath; |
| std::string DBGSourcePath; |
| |
| cf_str = (CFStringRef)CFDictionaryGetValue ((CFDictionaryRef) uuid_dict, CFSTR("DBGBuildSourcePath")); |
| if (cf_str && CFGetTypeID (cf_str) == CFStringGetTypeID ()) |
| { |
| CFCString::FileSystemRepresentation(cf_str, DBGBuildSourcePath); |
| } |
| |
| cf_str = (CFStringRef)CFDictionaryGetValue ((CFDictionaryRef) uuid_dict, CFSTR("DBGSourcePath")); |
| if (cf_str && CFGetTypeID (cf_str) == CFStringGetTypeID ()) |
| { |
| CFCString::FileSystemRepresentation(cf_str, DBGSourcePath); |
| } |
| |
| if (!DBGBuildSourcePath.empty() && !DBGSourcePath.empty()) |
| { |
| module_spec.GetSourceMappingList().Append (ConstString(DBGBuildSourcePath.c_str()), ConstString(DBGSourcePath.c_str()), true); |
| } |
| } |
| return success; |
| } |
| |
| |
| bool |
| Symbols::DownloadObjectAndSymbolFile (ModuleSpec &module_spec, bool force_lookup) |
| { |
| bool success = false; |
| const UUID *uuid_ptr = module_spec.GetUUIDPtr(); |
| const FileSpec *file_spec_ptr = module_spec.GetFileSpecPtr(); |
| |
| // It's expensive to check for the DBGShellCommands defaults setting, only do it once per |
| // lldb run and cache the result. |
| static bool g_have_checked_for_dbgshell_command = false; |
| static const char *g_dbgshell_command = NULL; |
| if (g_have_checked_for_dbgshell_command == false) |
| { |
| g_have_checked_for_dbgshell_command = true; |
| CFTypeRef defaults_setting = CFPreferencesCopyAppValue (CFSTR ("DBGShellCommands"), CFSTR ("com.apple.DebugSymbols")); |
| if (defaults_setting && CFGetTypeID (defaults_setting) == CFStringGetTypeID()) |
| { |
| char cstr_buf[PATH_MAX]; |
| if (CFStringGetCString ((CFStringRef) defaults_setting, cstr_buf, sizeof (cstr_buf), kCFStringEncodingUTF8)) |
| { |
| g_dbgshell_command = strdup (cstr_buf); // this malloc'ed memory will never be freed |
| } |
| } |
| if (defaults_setting) |
| { |
| CFRelease (defaults_setting); |
| } |
| } |
| |
| // When g_dbgshell_command is NULL, the user has not enabled the use of an external program |
| // to find the symbols, don't run it for them. |
| if (force_lookup == false && g_dbgshell_command == NULL) |
| { |
| return false; |
| } |
| |
| if (uuid_ptr || (file_spec_ptr && file_spec_ptr->Exists())) |
| { |
| static bool g_located_dsym_for_uuid_exe = false; |
| static bool g_dsym_for_uuid_exe_exists = false; |
| static char g_dsym_for_uuid_exe_path[PATH_MAX]; |
| if (!g_located_dsym_for_uuid_exe) |
| { |
| g_located_dsym_for_uuid_exe = true; |
| const char *dsym_for_uuid_exe_path_cstr = getenv("LLDB_APPLE_DSYMFORUUID_EXECUTABLE"); |
| FileSpec dsym_for_uuid_exe_spec; |
| if (dsym_for_uuid_exe_path_cstr) |
| { |
| dsym_for_uuid_exe_spec.SetFile(dsym_for_uuid_exe_path_cstr, true); |
| g_dsym_for_uuid_exe_exists = dsym_for_uuid_exe_spec.Exists(); |
| } |
| |
| if (!g_dsym_for_uuid_exe_exists) |
| { |
| dsym_for_uuid_exe_spec.SetFile("/usr/local/bin/dsymForUUID", false); |
| g_dsym_for_uuid_exe_exists = dsym_for_uuid_exe_spec.Exists(); |
| if (!g_dsym_for_uuid_exe_exists) |
| { |
| long bufsize; |
| if ((bufsize = sysconf(_SC_GETPW_R_SIZE_MAX)) != -1) |
| { |
| char buffer[bufsize]; |
| struct passwd pwd; |
| struct passwd *tilde_rc = NULL; |
| // we are a library so we need to use the reentrant version of getpwnam() |
| if (getpwnam_r ("rc", &pwd, buffer, bufsize, &tilde_rc) == 0 |
| && tilde_rc |
| && tilde_rc->pw_dir) |
| { |
| std::string dsymforuuid_path(tilde_rc->pw_dir); |
| dsymforuuid_path += "/bin/dsymForUUID"; |
| dsym_for_uuid_exe_spec.SetFile(dsymforuuid_path.c_str(), false); |
| g_dsym_for_uuid_exe_exists = dsym_for_uuid_exe_spec.Exists(); |
| } |
| } |
| } |
| } |
| if (!g_dsym_for_uuid_exe_exists && g_dbgshell_command != NULL) |
| { |
| dsym_for_uuid_exe_spec.SetFile(g_dbgshell_command, true); |
| g_dsym_for_uuid_exe_exists = dsym_for_uuid_exe_spec.Exists(); |
| } |
| |
| if (g_dsym_for_uuid_exe_exists) |
| dsym_for_uuid_exe_spec.GetPath (g_dsym_for_uuid_exe_path, sizeof(g_dsym_for_uuid_exe_path)); |
| } |
| if (g_dsym_for_uuid_exe_exists) |
| { |
| std::string uuid_str; |
| char file_path[PATH_MAX]; |
| file_path[0] = '\0'; |
| |
| if (uuid_ptr) |
| uuid_str = uuid_ptr->GetAsString(); |
| |
| if (file_spec_ptr) |
| file_spec_ptr->GetPath(file_path, sizeof(file_path)); |
| |
| StreamString command; |
| if (!uuid_str.empty()) |
| command.Printf("%s --ignoreNegativeCache --copyExecutable %s", g_dsym_for_uuid_exe_path, uuid_str.c_str()); |
| else if (file_path && file_path[0]) |
| command.Printf("%s --ignoreNegativeCache --copyExecutable %s", g_dsym_for_uuid_exe_path, file_path); |
| |
| if (!command.GetString().empty()) |
| { |
| int exit_status = -1; |
| int signo = -1; |
| std::string command_output; |
| Error error = Host::RunShellCommand (command.GetData(), |
| NULL, // current working directory |
| &exit_status, // Exit status |
| &signo, // Signal int * |
| &command_output, // Command output |
| 30, // Large timeout to allow for long dsym download times |
| NULL); // Don't run in a shell (we don't need shell expansion) |
| if (error.Success() && exit_status == 0 && !command_output.empty()) |
| { |
| CFCData data (CFDataCreateWithBytesNoCopy (NULL, |
| (const UInt8 *)command_output.data(), |
| command_output.size(), |
| kCFAllocatorNull)); |
| |
| CFCReleaser<CFDictionaryRef> plist((CFDictionaryRef)::CFPropertyListCreateFromXMLData (NULL, data.get(), kCFPropertyListImmutable, NULL)); |
| |
| if (plist.get() && CFGetTypeID (plist.get()) == CFDictionaryGetTypeID ()) |
| { |
| if (!uuid_str.empty()) |
| { |
| CFCString uuid_cfstr(uuid_str.c_str()); |
| CFDictionaryRef uuid_dict = (CFDictionaryRef)CFDictionaryGetValue (plist.get(), uuid_cfstr.get()); |
| success = GetModuleSpecInfoFromUUIDDictionary (uuid_dict, module_spec); |
| } |
| else |
| { |
| const CFIndex num_values = ::CFDictionaryGetCount(plist.get()); |
| if (num_values > 0) |
| { |
| std::vector<CFStringRef> keys (num_values, NULL); |
| std::vector<CFDictionaryRef> values (num_values, NULL); |
| ::CFDictionaryGetKeysAndValues(plist.get(), NULL, (const void **)&values[0]); |
| if (num_values == 1) |
| { |
| return GetModuleSpecInfoFromUUIDDictionary (values[0], module_spec); |
| } |
| else |
| { |
| for (CFIndex i=0; i<num_values; ++i) |
| { |
| ModuleSpec curr_module_spec; |
| if (GetModuleSpecInfoFromUUIDDictionary (values[i], curr_module_spec)) |
| { |
| if (module_spec.GetArchitecture().IsCompatibleMatch(curr_module_spec.GetArchitecture())) |
| { |
| module_spec = curr_module_spec; |
| return true; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| return success; |
| } |
| |
