ModuleSP
ModuleList::FindModule (const UUID &uuid) const
{
ModuleSP module_sp;
if (uuid.IsValid())
{
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
if ((*pos)->GetUUID() == uuid)
{
module_sp = (*pos);
break;
}
}
}
return module_sp;
}
bool DynamicLoaderMacOSXDYLD::GetSharedCacheInformation(
lldb::addr_t &base_address, UUID &uuid, LazyBool &using_shared_cache,
LazyBool &private_shared_cache) {
base_address = LLDB_INVALID_ADDRESS;
uuid.Clear();
using_shared_cache = eLazyBoolCalculate;
private_shared_cache = eLazyBoolCalculate;
if (m_process) {
addr_t all_image_infos = m_process->GetImageInfoAddress();
// The address returned by GetImageInfoAddress may be the address of dyld
// (don't want) or it may be the address of the dyld_all_image_infos
// structure (want). The first four bytes will be either the version field
// (all_image_infos) or a Mach-O file magic constant. Version 13 and higher
// of dyld_all_image_infos is required to get the sharedCacheUUID field.
Status err;
uint32_t version_or_magic =
m_process->ReadUnsignedIntegerFromMemory(all_image_infos, 4, -1, err);
if (version_or_magic != static_cast<uint32_t>(-1) &&
version_or_magic != llvm::MachO::MH_MAGIC &&
version_or_magic != llvm::MachO::MH_CIGAM &&
version_or_magic != llvm::MachO::MH_MAGIC_64 &&
version_or_magic != llvm::MachO::MH_CIGAM_64 &&
version_or_magic >= 13) {
addr_t sharedCacheUUID_address = LLDB_INVALID_ADDRESS;
int wordsize = m_process->GetAddressByteSize();
if (wordsize == 8) {
sharedCacheUUID_address =
all_image_infos + 160; // sharedCacheUUID <mach-o/dyld_images.h>
}
if (wordsize == 4) {
sharedCacheUUID_address =
all_image_infos + 84; // sharedCacheUUID <mach-o/dyld_images.h>
}
if (sharedCacheUUID_address != LLDB_INVALID_ADDRESS) {
uuid_t shared_cache_uuid;
if (m_process->ReadMemory(sharedCacheUUID_address, shared_cache_uuid,
sizeof(uuid_t), err) == sizeof(uuid_t)) {
uuid = UUID::fromOptionalData(shared_cache_uuid, 16);
if (uuid.IsValid()) {
using_shared_cache = eLazyBoolYes;
}
}
if (version_or_magic >= 15) {
// The sharedCacheBaseAddress field is the next one in the
// dyld_all_image_infos struct.
addr_t sharedCacheBaseAddr_address = sharedCacheUUID_address + 16;
Status error;
base_address = m_process->ReadUnsignedIntegerFromMemory(
sharedCacheBaseAddr_address, wordsize, LLDB_INVALID_ADDRESS,
error);
if (error.Fail())
base_address = LLDB_INVALID_ADDRESS;
}
return true;
}
//
// add
// NB: sharedCacheBaseAddress is the next field in dyld_all_image_infos
// after
// sharedCacheUUID -- that is, 16 bytes after it, if we wanted to fetch
// it.
}
}
return false;
}
