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//===-- 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"
#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/Symbol/ObjectFile.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
#if defined (__linux__) || defined (__FreeBSD__)
FileSpec
Symbols::LocateExecutableObjectFile (const ModuleSpec &module_spec)
{
// FIXME
return FileSpec();
}
FileSpec
Symbols::LocateExecutableSymbolFile (const ModuleSpec &module_spec)
{
const char *symbol_filename = module_spec.GetSymbolFileSpec().GetFilename().AsCString();
if (!symbol_filename || !symbol_filename[0])
return FileSpec();
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 (file_spec == module_spec.GetFileSpec())
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 FileSpec();
}
FileSpec
Symbols::FindSymbolFileInBundle (const FileSpec& symfile_bundle,
const lldb_private::UUID *uuid,
const ArchSpec *arch)
{
// FIXME
return FileSpec();
}
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;
}
#elif !defined (__APPLE__)
FileSpec
Symbols::LocateExecutableObjectFile (const ModuleSpec &module_spec)
{
// FIXME
return FileSpec();
}
FileSpec
Symbols::LocateExecutableSymbolFile (const ModuleSpec &module_spec)
{
// FIXME
return FileSpec();
}
FileSpec
Symbols::FindSymbolFileInBundle (const FileSpec& symfile_bundle,
const lldb_private::UUID *uuid,
const ArchSpec *arch)
{
return FileSpec();
}
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;
}
#endif
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