ModuleSP DynamicLoader::GetTargetExecutable() {
Target &target = m_process->GetTarget();
ModuleSP executable = target.GetExecutableModule();
if (executable) {
if (FileSystem::Instance().Exists(executable->GetFileSpec())) {
ModuleSpec module_spec(executable->GetFileSpec(),
executable->GetArchitecture());
auto module_sp = std::make_shared<Module>(module_spec);
// Check if the executable has changed and set it to the target
// executable if they differ.
if (module_sp && module_sp->GetUUID().IsValid() &&
executable->GetUUID().IsValid()) {
if (module_sp->GetUUID() != executable->GetUUID())
executable.reset();
} else if (executable->FileHasChanged()) {
executable.reset();
}
if (!executable) {
executable = target.GetOrCreateModule(module_spec, true /* notify */);
if (executable.get() != target.GetExecutableModulePointer()) {
// Don't load dependent images since we are in dyld where we will
// know and find out about all images that are loaded
target.SetExecutableModule(executable, eLoadDependentsNo);
}
}
}
}
return executable;
}
bool SearchFilterByModuleList::ModulePasses(const ModuleSP &module_sp) {
if (m_module_spec_list.GetSize() == 0)
return true;
return module_sp && m_module_spec_list.FindFileIndex(
0, module_sp->GetFileSpec(), false) != UINT32_MAX;
}
void
ModuleList::ReplaceEquivalent (const ModuleSP &module_sp)
{
if (module_sp)
{
Mutex::Locker locker(m_modules_mutex);
// First remove any equivalent modules. Equivalent modules are modules
// whose path, platform path and architecture match.
ModuleSpec equivalent_module_spec (module_sp->GetFileSpec(), module_sp->GetArchitecture());
equivalent_module_spec.GetPlatformFileSpec() = module_sp->GetPlatformFileSpec();
size_t idx = 0;
while (idx < m_modules.size())
{
ModuleSP module_sp (m_modules[idx]);
if (module_sp->MatchesModuleSpec (equivalent_module_spec))
RemoveImpl(m_modules.begin() + idx);
else
++idx;
}
// Now add the new module to the list
Append(module_sp);
}
}
bool
SearchFilterByModule::ModulePasses (const ModuleSP &module_sp)
{
if (module_sp && FileSpec::Compare (module_sp->GetFileSpec(), m_module_spec, false) == 0)
return true;
else
return false;
}
/// Checks to see if the target module has changed, updates the target
/// accordingly and returns the target executable module.
ModuleSP
DynamicLoaderHexagonDYLD::GetTargetExecutable()
{
Target &target = m_process->GetTarget();
ModuleSP executable = target.GetExecutableModule();
// There is no executable
if (! executable.get())
return executable;
// The target executable file does not exits
if (! executable->GetFileSpec().Exists())
return executable;
// Prep module for loading
ModuleSpec module_spec(executable->GetFileSpec(), executable->GetArchitecture());
ModuleSP module_sp (new Module (module_spec));
// Check if the executable has changed and set it to the target executable if they differ.
if (module_sp.get() && module_sp->GetUUID().IsValid() && executable->GetUUID().IsValid())
{
// if the executable has changed ??
if (module_sp->GetUUID() != executable->GetUUID())
executable.reset();
}
else if (executable->FileHasChanged())
executable.reset();
if ( executable.get( ) )
return executable;
// TODO: What case is this code used?
executable = target.GetSharedModule(module_spec);
if (executable.get() != target.GetExecutableModulePointer())
{
// Don't load dependent images since we are in dyld where we will know
// and find out about all images that are loaded
const bool get_dependent_images = false;
target.SetExecutableModule(executable, get_dependent_images);
}
return executable;
}
Error ModuleCache::Get(const FileSpec &root_dir_spec, const char *hostname,
const ModuleSpec &module_spec,
ModuleSP &cached_module_sp, bool *did_create_ptr) {
const auto find_it =
m_loaded_modules.find(module_spec.GetUUID().GetAsString());
if (find_it != m_loaded_modules.end()) {
cached_module_sp = (*find_it).second.lock();
if (cached_module_sp)
return Error();
m_loaded_modules.erase(find_it);
}
const auto module_spec_dir =
GetModuleDirectory(root_dir_spec, module_spec.GetUUID());
const auto module_file_path = JoinPath(
module_spec_dir, module_spec.GetFileSpec().GetFilename().AsCString());
if (!module_file_path.Exists())
return Error("Module %s not found", module_file_path.GetPath().c_str());
if (module_file_path.GetByteSize() != module_spec.GetObjectSize())
return Error("Module %s has invalid file size",
module_file_path.GetPath().c_str());
// We may have already cached module but downloaded from an another host - in
// this case let's create a link to it.
auto error = CreateHostSysRootModuleLink(root_dir_spec, hostname,
module_spec.GetFileSpec(),
module_file_path, false);
if (error.Fail())
return Error("Failed to create link to %s: %s",
module_file_path.GetPath().c_str(), error.AsCString());
auto cached_module_spec(module_spec);
cached_module_spec.GetUUID().Clear(); // Clear UUID since it may contain md5
// content hash instead of real UUID.
cached_module_spec.GetFileSpec() = module_file_path;
cached_module_spec.GetPlatformFileSpec() = module_spec.GetFileSpec();
error = ModuleList::GetSharedModule(cached_module_spec, cached_module_sp,
nullptr, nullptr, did_create_ptr, false);
if (error.Fail())
return error;
FileSpec symfile_spec = GetSymbolFileSpec(cached_module_sp->GetFileSpec());
if (symfile_spec.Exists())
cached_module_sp->SetSymbolFileFileSpec(symfile_spec);
m_loaded_modules.insert(
std::make_pair(module_spec.GetUUID().GetAsString(), cached_module_sp));
return Error();
}
bool
ObjCTrampolineHandler::ModuleIsObjCLibrary (const ModuleSP &module_sp)
{
const FileSpec &module_file_spec = module_sp->GetFileSpec();
static ConstString ObjCName ("libobjc.A.dylib");
if (module_file_spec)
{
if (module_file_spec.GetFilename() == ObjCName)
return true;
}
return false;
}
bool
AppleObjCRuntime::AppleIsModuleObjCLibrary (const ModuleSP &module_sp)
{
const FileSpec &module_file_spec = module_sp->GetFileSpec();
static ConstString ObjCName ("libobjc.A.dylib");
if (module_file_spec)
{
if (module_file_spec.GetFilename() == ObjCName)
return true;
}
return false;
}
//--------------------------------------------------------------
/// Unary predicate function object callback.
//--------------------------------------------------------------
bool
operator () (const ModuleSP& module_sp) const
{
if (m_file_spec_ptr)
{
if (m_file_spec_is_platform)
{
if (!FileSpec::Equal (*m_file_spec_ptr,
module_sp->GetPlatformFileSpec(),
m_file_spec_compare_basename_only))
return false;
}
else
{
if (!FileSpec::Equal (*m_file_spec_ptr,
module_sp->GetFileSpec(),
m_file_spec_compare_basename_only))
return false;
}
}
if (m_arch_ptr && m_arch_ptr->IsValid())
{
if (module_sp->GetArchitecture() != *m_arch_ptr)
return false;
}
if (m_uuid_ptr && m_uuid_ptr->IsValid())
{
if (module_sp->GetUUID() != *m_uuid_ptr)
return false;
}
if (m_object_name)
{
if (module_sp->GetObjectName() != *m_object_name)
return false;
}
return true;
}
static void
ModuleSharedPtrLogger(void* p, const ModuleSP& sp, bool will_decrement)
{
if (sp.get())
{
const char *module_basename = sp->GetFileSpec().GetFilename().GetCString();
// If "p" is set, then it is the basename of a module to watch for. This
// basename MUST be uniqued first by getting it from a ConstString or this
// won't work.
if (p && p != module_basename)
{
return;
}
long use_count = sp.use_count();
if (will_decrement)
--use_count;
printf("\nModuleSP(%p): %c %p {%lu} %s/%s\n", &sp, will_decrement ? '-' : '+', sp.get(), use_count, sp->GetFileSpec().GetDirectory().GetCString(), module_basename);
StreamFile stdout_strm(stdout, false);
Host::Backtrace (stdout_strm, 512);
}
}
bool SearchFilterByModule::ModulePasses(const ModuleSP &module_sp) {
return (module_sp &&
FileSpec::Equal(module_sp->GetFileSpec(), m_module_spec, false));
}
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();
}
