520 lines
19 KiB
C++
520 lines
19 KiB
C++
|
//===-- ObjectContainerBSDArchive.cpp -------------------------------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "ObjectContainerBSDArchive.h"
|
||
|
|
|
||
|
|
#if defined(_WIN32) || defined(__ANDROID__)
|
||
|
|
// Defines from ar, missing on Windows
|
||
|
|
#define SARMAG 8
|
||
|
|
#define ARFMAG "`\n"
|
||
|
|
|
||
|
|
typedef struct ar_hdr {
|
||
|
|
char ar_name[16];
|
||
|
|
char ar_date[12];
|
||
|
|
char ar_uid[6], ar_gid[6];
|
||
|
|
char ar_mode[8];
|
||
|
|
char ar_size[10];
|
||
|
|
char ar_fmag[2];
|
||
|
|
} ar_hdr;
|
||
|
|
#else
|
||
|
|
#include <ar.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "lldb/Core/Module.h"
|
||
|
|
#include "lldb/Core/ModuleSpec.h"
|
||
|
|
#include "lldb/Core/PluginManager.h"
|
||
|
|
#include "lldb/Host/FileSystem.h"
|
||
|
|
#include "lldb/Symbol/ObjectFile.h"
|
||
|
|
#include "lldb/Utility/ArchSpec.h"
|
||
|
|
#include "lldb/Utility/LLDBLog.h"
|
||
|
|
#include "lldb/Utility/Stream.h"
|
||
|
|
#include "lldb/Utility/Timer.h"
|
||
|
|
|
||
|
|
#include "llvm/Object/Archive.h"
|
||
|
|
#include "llvm/Support/MemoryBuffer.h"
|
||
|
|
|
||
|
|
using namespace lldb;
|
||
|
|
using namespace lldb_private;
|
||
|
|
|
||
|
|
using namespace llvm::object;
|
||
|
|
|
||
|
|
LLDB_PLUGIN_DEFINE(ObjectContainerBSDArchive)
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Object::Object() : ar_name() {}
|
||
|
|
|
||
|
|
void ObjectContainerBSDArchive::Object::Clear() {
|
||
|
|
ar_name.Clear();
|
||
|
|
modification_time = 0;
|
||
|
|
size = 0;
|
||
|
|
file_offset = 0;
|
||
|
|
file_size = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectContainerBSDArchive::Object::Dump() const {
|
||
|
|
printf("name = \"%s\"\n", ar_name.GetCString());
|
||
|
|
printf("mtime = 0x%8.8" PRIx32 "\n", modification_time);
|
||
|
|
printf("size = 0x%8.8" PRIx32 " (%" PRIu32 ")\n", size, size);
|
||
|
|
printf("file_offset = 0x%16.16" PRIx64 " (%" PRIu64 ")\n", file_offset,
|
||
|
|
file_offset);
|
||
|
|
printf("file_size = 0x%16.16" PRIx64 " (%" PRIu64 ")\n\n", file_size,
|
||
|
|
file_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Archive::Archive(const lldb_private::ArchSpec &arch,
|
||
|
|
const llvm::sys::TimePoint<> &time,
|
||
|
|
lldb::offset_t file_offset,
|
||
|
|
lldb_private::DataExtractor &data,
|
||
|
|
ArchiveType archive_type)
|
||
|
|
: m_arch(arch), m_modification_time(time), m_file_offset(file_offset),
|
||
|
|
m_objects(), m_data(data), m_archive_type(archive_type) {}
|
||
|
|
|
||
|
|
Log *l = GetLog(LLDBLog::Object);
|
||
|
|
ObjectContainerBSDArchive::Archive::~Archive() = default;
|
||
|
|
|
||
|
|
size_t ObjectContainerBSDArchive::Archive::ParseObjects() {
|
||
|
|
DataExtractor &data = m_data;
|
||
|
|
|
||
|
|
std::unique_ptr<llvm::MemoryBuffer> mem_buffer =
|
||
|
|
llvm::MemoryBuffer::getMemBuffer(
|
||
|
|
llvm::StringRef((const char *)data.GetDataStart(),
|
||
|
|
data.GetByteSize()),
|
||
|
|
llvm::StringRef(),
|
||
|
|
/*RequiresNullTerminator=*/false);
|
||
|
|
|
||
|
|
auto exp_ar = llvm::object::Archive::create(mem_buffer->getMemBufferRef());
|
||
|
|
if (!exp_ar) {
|
||
|
|
LLDB_LOG_ERROR(l, exp_ar.takeError(), "failed to create archive: {0}");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
auto llvm_archive = std::move(exp_ar.get());
|
||
|
|
|
||
|
|
llvm::Error iter_err = llvm::Error::success();
|
||
|
|
Object obj;
|
||
|
|
for (const auto &child: llvm_archive->children(iter_err)) {
|
||
|
|
obj.Clear();
|
||
|
|
auto exp_name = child.getName();
|
||
|
|
if (exp_name) {
|
||
|
|
obj.ar_name = ConstString(exp_name.get());
|
||
|
|
} else {
|
||
|
|
LLDB_LOG_ERROR(l, exp_name.takeError(),
|
||
|
|
"failed to get archive object name: {0}");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto exp_mtime = child.getLastModified();
|
||
|
|
if (exp_mtime) {
|
||
|
|
obj.modification_time =
|
||
|
|
std::chrono::duration_cast<std::chrono::seconds>(
|
||
|
|
std::chrono::time_point_cast<std::chrono::seconds>(
|
||
|
|
exp_mtime.get()).time_since_epoch()).count();
|
||
|
|
} else {
|
||
|
|
LLDB_LOG_ERROR(l, exp_mtime.takeError(),
|
||
|
|
"failed to get archive object time: {0}");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto exp_size = child.getRawSize();
|
||
|
|
if (exp_size) {
|
||
|
|
obj.size = exp_size.get();
|
||
|
|
} else {
|
||
|
|
LLDB_LOG_ERROR(l, exp_size.takeError(),
|
||
|
|
"failed to get archive object size: {0}");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
obj.file_offset = child.getDataOffset();
|
||
|
|
|
||
|
|
auto exp_file_size = child.getSize();
|
||
|
|
if (exp_file_size) {
|
||
|
|
obj.file_size = exp_file_size.get();
|
||
|
|
} else {
|
||
|
|
LLDB_LOG_ERROR(l, exp_file_size.takeError(),
|
||
|
|
"failed to get archive object file size: {0}");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
m_object_name_to_index_map.Append(obj.ar_name, m_objects.size());
|
||
|
|
m_objects.push_back(obj);
|
||
|
|
}
|
||
|
|
if (iter_err) {
|
||
|
|
LLDB_LOG_ERROR(l, std::move(iter_err),
|
||
|
|
"failed to iterate over archive objects: {0}");
|
||
|
|
}
|
||
|
|
// Now sort all of the object name pointers
|
||
|
|
m_object_name_to_index_map.Sort();
|
||
|
|
return m_objects.size();
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Object *
|
||
|
|
ObjectContainerBSDArchive::Archive::FindObject(
|
||
|
|
ConstString object_name, const llvm::sys::TimePoint<> &object_mod_time) {
|
||
|
|
const ObjectNameToIndexMap::Entry *match =
|
||
|
|
m_object_name_to_index_map.FindFirstValueForName(object_name);
|
||
|
|
if (!match)
|
||
|
|
return nullptr;
|
||
|
|
if (object_mod_time == llvm::sys::TimePoint<>())
|
||
|
|
return &m_objects[match->value];
|
||
|
|
|
||
|
|
const uint64_t object_modification_date = llvm::sys::toTimeT(object_mod_time);
|
||
|
|
if (m_objects[match->value].modification_time == object_modification_date)
|
||
|
|
return &m_objects[match->value];
|
||
|
|
|
||
|
|
const ObjectNameToIndexMap::Entry *next_match =
|
||
|
|
m_object_name_to_index_map.FindNextValueForName(match);
|
||
|
|
while (next_match) {
|
||
|
|
if (m_objects[next_match->value].modification_time ==
|
||
|
|
object_modification_date)
|
||
|
|
return &m_objects[next_match->value];
|
||
|
|
next_match = m_object_name_to_index_map.FindNextValueForName(next_match);
|
||
|
|
}
|
||
|
|
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Archive::shared_ptr
|
||
|
|
ObjectContainerBSDArchive::Archive::FindCachedArchive(
|
||
|
|
const FileSpec &file, const ArchSpec &arch,
|
||
|
|
const llvm::sys::TimePoint<> &time, lldb::offset_t file_offset) {
|
||
|
|
std::lock_guard<std::recursive_mutex> guard(Archive::GetArchiveCacheMutex());
|
||
|
|
shared_ptr archive_sp;
|
||
|
|
Archive::Map &archive_map = Archive::GetArchiveCache();
|
||
|
|
Archive::Map::iterator pos = archive_map.find(file);
|
||
|
|
// Don't cache a value for "archive_map.end()" below since we might delete an
|
||
|
|
// archive entry...
|
||
|
|
while (pos != archive_map.end() && pos->first == file) {
|
||
|
|
bool match = true;
|
||
|
|
if (arch.IsValid() &&
|
||
|
|
!pos->second->GetArchitecture().IsCompatibleMatch(arch))
|
||
|
|
match = false;
|
||
|
|
else if (file_offset != LLDB_INVALID_OFFSET &&
|
||
|
|
pos->second->GetFileOffset() != file_offset)
|
||
|
|
match = false;
|
||
|
|
if (match) {
|
||
|
|
if (pos->second->GetModificationTime() == time) {
|
||
|
|
return pos->second;
|
||
|
|
} else {
|
||
|
|
// We have a file at the same path with the same architecture whose
|
||
|
|
// modification time doesn't match. It doesn't make sense for us to
|
||
|
|
// continue to use this BSD archive since we cache only the object info
|
||
|
|
// which consists of file time info and also the file offset and file
|
||
|
|
// size of any contained objects. Since this information is now out of
|
||
|
|
// date, we won't get the correct information if we go and extract the
|
||
|
|
// file data, so we should remove the old and outdated entry.
|
||
|
|
archive_map.erase(pos);
|
||
|
|
pos = archive_map.find(file);
|
||
|
|
continue; // Continue to next iteration so we don't increment pos
|
||
|
|
// below...
|
||
|
|
}
|
||
|
|
}
|
||
|
|
++pos;
|
||
|
|
}
|
||
|
|
return archive_sp;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Archive::shared_ptr
|
||
|
|
ObjectContainerBSDArchive::Archive::ParseAndCacheArchiveForFile(
|
||
|
|
const FileSpec &file, const ArchSpec &arch,
|
||
|
|
const llvm::sys::TimePoint<> &time, lldb::offset_t file_offset,
|
||
|
|
DataExtractor &data, ArchiveType archive_type) {
|
||
|
|
shared_ptr archive_sp(
|
||
|
|
new Archive(arch, time, file_offset, data, archive_type));
|
||
|
|
if (archive_sp) {
|
||
|
|
const size_t num_objects = archive_sp->ParseObjects();
|
||
|
|
if (num_objects > 0) {
|
||
|
|
std::lock_guard<std::recursive_mutex> guard(
|
||
|
|
Archive::GetArchiveCacheMutex());
|
||
|
|
Archive::GetArchiveCache().insert(std::make_pair(file, archive_sp));
|
||
|
|
} else {
|
||
|
|
archive_sp.reset();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return archive_sp;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::Archive::Map &
|
||
|
|
ObjectContainerBSDArchive::Archive::GetArchiveCache() {
|
||
|
|
static Archive::Map g_archive_map;
|
||
|
|
return g_archive_map;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::recursive_mutex &
|
||
|
|
ObjectContainerBSDArchive::Archive::GetArchiveCacheMutex() {
|
||
|
|
static std::recursive_mutex g_archive_map_mutex;
|
||
|
|
return g_archive_map_mutex;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectContainerBSDArchive::Initialize() {
|
||
|
|
PluginManager::RegisterPlugin(GetPluginNameStatic(),
|
||
|
|
GetPluginDescriptionStatic(), CreateInstance,
|
||
|
|
GetModuleSpecifications);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectContainerBSDArchive::Terminate() {
|
||
|
|
PluginManager::UnregisterPlugin(CreateInstance);
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainer *ObjectContainerBSDArchive::CreateInstance(
|
||
|
|
const lldb::ModuleSP &module_sp, DataBufferSP &data_sp,
|
||
|
|
lldb::offset_t data_offset, const FileSpec *file,
|
||
|
|
lldb::offset_t file_offset, lldb::offset_t length) {
|
||
|
|
ConstString object_name(module_sp->GetObjectName());
|
||
|
|
if (!object_name)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
if (data_sp) {
|
||
|
|
// We have data, which means this is the first 512 bytes of the file Check
|
||
|
|
// to see if the magic bytes match and if they do, read the entire table of
|
||
|
|
// contents for the archive and cache it
|
||
|
|
DataExtractor data;
|
||
|
|
data.SetData(data_sp, data_offset, length);
|
||
|
|
ArchiveType archive_type = ObjectContainerBSDArchive::MagicBytesMatch(data);
|
||
|
|
if (file && data_sp && archive_type != ArchiveType::Invalid) {
|
||
|
|
LLDB_SCOPED_TIMERF(
|
||
|
|
"ObjectContainerBSDArchive::CreateInstance (module = %s, file = "
|
||
|
|
"%p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
|
||
|
|
module_sp->GetFileSpec().GetPath().c_str(),
|
||
|
|
static_cast<const void *>(file), static_cast<uint64_t>(file_offset),
|
||
|
|
static_cast<uint64_t>(length));
|
||
|
|
|
||
|
|
// Map the entire .a file to be sure that we don't lose any data if the
|
||
|
|
// file gets updated by a new build while this .a file is being used for
|
||
|
|
// debugging
|
||
|
|
DataBufferSP archive_data_sp =
|
||
|
|
FileSystem::Instance().CreateDataBuffer(*file, length, file_offset);
|
||
|
|
if (!archive_data_sp)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
lldb::offset_t archive_data_offset = 0;
|
||
|
|
|
||
|
|
Archive::shared_ptr archive_sp(Archive::FindCachedArchive(
|
||
|
|
*file, module_sp->GetArchitecture(), module_sp->GetModificationTime(),
|
||
|
|
file_offset));
|
||
|
|
std::unique_ptr<ObjectContainerBSDArchive> container_up(
|
||
|
|
new ObjectContainerBSDArchive(module_sp, archive_data_sp,
|
||
|
|
archive_data_offset, file, file_offset,
|
||
|
|
length, archive_type));
|
||
|
|
|
||
|
|
if (container_up) {
|
||
|
|
if (archive_sp) {
|
||
|
|
// We already have this archive in our cache, use it
|
||
|
|
container_up->SetArchive(archive_sp);
|
||
|
|
return container_up.release();
|
||
|
|
} else if (container_up->ParseHeader())
|
||
|
|
return container_up.release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// No data, just check for a cached archive
|
||
|
|
Archive::shared_ptr archive_sp(Archive::FindCachedArchive(
|
||
|
|
*file, module_sp->GetArchitecture(), module_sp->GetModificationTime(),
|
||
|
|
file_offset));
|
||
|
|
if (archive_sp) {
|
||
|
|
std::unique_ptr<ObjectContainerBSDArchive> container_up(
|
||
|
|
new ObjectContainerBSDArchive(module_sp, data_sp, data_offset, file,
|
||
|
|
file_offset, length,
|
||
|
|
archive_sp->GetArchiveType()));
|
||
|
|
|
||
|
|
if (container_up) {
|
||
|
|
// We already have this archive in our cache, use it
|
||
|
|
container_up->SetArchive(archive_sp);
|
||
|
|
return container_up.release();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
ArchiveType
|
||
|
|
ObjectContainerBSDArchive::MagicBytesMatch(const DataExtractor &data) {
|
||
|
|
uint32_t offset = 0;
|
||
|
|
const char *armag = (const char *)data.PeekData(offset,
|
||
|
|
sizeof(ar_hdr) + SARMAG);
|
||
|
|
if (armag == nullptr)
|
||
|
|
return ArchiveType::Invalid;
|
||
|
|
ArchiveType result = ArchiveType::Invalid;
|
||
|
|
if (strncmp(armag, ArchiveMagic, SARMAG) == 0)
|
||
|
|
result = ArchiveType::Archive;
|
||
|
|
else if (strncmp(armag, ThinArchiveMagic, SARMAG) == 0)
|
||
|
|
result = ArchiveType::ThinArchive;
|
||
|
|
else
|
||
|
|
return ArchiveType::Invalid;
|
||
|
|
|
||
|
|
armag += offsetof(struct ar_hdr, ar_fmag) + SARMAG;
|
||
|
|
if (strncmp(armag, ARFMAG, 2) == 0)
|
||
|
|
return result;
|
||
|
|
return ArchiveType::Invalid;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::ObjectContainerBSDArchive(
|
||
|
|
const lldb::ModuleSP &module_sp, DataBufferSP &data_sp,
|
||
|
|
lldb::offset_t data_offset, const lldb_private::FileSpec *file,
|
||
|
|
lldb::offset_t file_offset, lldb::offset_t size, ArchiveType archive_type)
|
||
|
|
: ObjectContainer(module_sp, file, file_offset, size, data_sp, data_offset),
|
||
|
|
m_archive_sp() {
|
||
|
|
m_archive_type = archive_type;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ObjectContainerBSDArchive::SetArchive(Archive::shared_ptr &archive_sp) {
|
||
|
|
m_archive_sp = archive_sp;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectContainerBSDArchive::~ObjectContainerBSDArchive() = default;
|
||
|
|
|
||
|
|
bool ObjectContainerBSDArchive::ParseHeader() {
|
||
|
|
if (m_archive_sp.get() == nullptr) {
|
||
|
|
if (m_data.GetByteSize() > 0) {
|
||
|
|
ModuleSP module_sp(GetModule());
|
||
|
|
if (module_sp) {
|
||
|
|
m_archive_sp = Archive::ParseAndCacheArchiveForFile(
|
||
|
|
m_file, module_sp->GetArchitecture(),
|
||
|
|
module_sp->GetModificationTime(), m_offset, m_data, m_archive_type);
|
||
|
|
}
|
||
|
|
// Clear the m_data that contains the entire archive data and let our
|
||
|
|
// m_archive_sp hold onto the data.
|
||
|
|
m_data.Clear();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return m_archive_sp.get() != nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
FileSpec GetChildFileSpecificationsFromThin(llvm::StringRef childPath,
|
||
|
|
const FileSpec &parentFileSpec) {
|
||
|
|
llvm::SmallString<128> FullPath;
|
||
|
|
if (llvm::sys::path::is_absolute(childPath)) {
|
||
|
|
FullPath = childPath;
|
||
|
|
} else {
|
||
|
|
FullPath = parentFileSpec.GetDirectory().GetStringRef();
|
||
|
|
llvm::sys::path::append(FullPath, childPath);
|
||
|
|
}
|
||
|
|
FileSpec child = FileSpec(FullPath.str(), llvm::sys::path::Style::posix);
|
||
|
|
return child;
|
||
|
|
}
|
||
|
|
|
||
|
|
ObjectFileSP ObjectContainerBSDArchive::GetObjectFile(const FileSpec *file) {
|
||
|
|
ModuleSP module_sp(GetModule());
|
||
|
|
if (module_sp) {
|
||
|
|
if (module_sp->GetObjectName() && m_archive_sp) {
|
||
|
|
Object *object = m_archive_sp->FindObject(
|
||
|
|
module_sp->GetObjectName(), module_sp->GetObjectModificationTime());
|
||
|
|
if (object) {
|
||
|
|
if (m_archive_type == ArchiveType::ThinArchive) {
|
||
|
|
// Set file to child object file
|
||
|
|
FileSpec child = GetChildFileSpecificationsFromThin(
|
||
|
|
object->ar_name.GetStringRef(), m_file);
|
||
|
|
lldb::offset_t file_offset = 0;
|
||
|
|
lldb::offset_t file_size = object->size;
|
||
|
|
std::shared_ptr<DataBuffer> child_data_sp =
|
||
|
|
FileSystem::Instance().CreateDataBuffer(child, file_size,
|
||
|
|
file_offset);
|
||
|
|
if (!child_data_sp ||
|
||
|
|
child_data_sp->GetByteSize() != object->file_size)
|
||
|
|
return ObjectFileSP();
|
||
|
|
lldb::offset_t data_offset = 0;
|
||
|
|
return ObjectFile::FindPlugin(
|
||
|
|
module_sp, &child, m_offset + object->file_offset,
|
||
|
|
object->file_size, child_data_sp, data_offset);
|
||
|
|
}
|
||
|
|
lldb::offset_t data_offset = object->file_offset;
|
||
|
|
return ObjectFile::FindPlugin(
|
||
|
|
module_sp, file, m_offset + object->file_offset, object->file_size,
|
||
|
|
m_archive_sp->GetData().GetSharedDataBuffer(), data_offset);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ObjectFileSP();
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t ObjectContainerBSDArchive::GetModuleSpecifications(
|
||
|
|
const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
|
||
|
|
lldb::offset_t data_offset, lldb::offset_t file_offset,
|
||
|
|
lldb::offset_t file_size, lldb_private::ModuleSpecList &specs) {
|
||
|
|
|
||
|
|
// We have data, which means this is the first 512 bytes of the file Check to
|
||
|
|
// see if the magic bytes match and if they do, read the entire table of
|
||
|
|
// contents for the archive and cache it
|
||
|
|
DataExtractor data;
|
||
|
|
data.SetData(data_sp, data_offset, data_sp->GetByteSize());
|
||
|
|
ArchiveType archive_type = ObjectContainerBSDArchive::MagicBytesMatch(data);
|
||
|
|
if (!file || !data_sp || archive_type == ArchiveType::Invalid)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
const size_t initial_count = specs.GetSize();
|
||
|
|
llvm::sys::TimePoint<> file_mod_time = FileSystem::Instance().GetModificationTime(file);
|
||
|
|
Archive::shared_ptr archive_sp(
|
||
|
|
Archive::FindCachedArchive(file, ArchSpec(), file_mod_time, file_offset));
|
||
|
|
bool set_archive_arch = false;
|
||
|
|
if (!archive_sp) {
|
||
|
|
set_archive_arch = true;
|
||
|
|
data_sp =
|
||
|
|
FileSystem::Instance().CreateDataBuffer(file, file_size, file_offset);
|
||
|
|
if (data_sp) {
|
||
|
|
data.SetData(data_sp, 0, data_sp->GetByteSize());
|
||
|
|
archive_sp = Archive::ParseAndCacheArchiveForFile(
|
||
|
|
file, ArchSpec(), file_mod_time, file_offset, data, archive_type);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (archive_sp) {
|
||
|
|
const size_t num_objects = archive_sp->GetNumObjects();
|
||
|
|
for (size_t idx = 0; idx < num_objects; ++idx) {
|
||
|
|
const Object *object = archive_sp->GetObjectAtIndex(idx);
|
||
|
|
if (object) {
|
||
|
|
if (archive_sp->GetArchiveType() == ArchiveType::ThinArchive) {
|
||
|
|
if (object->ar_name.IsEmpty())
|
||
|
|
continue;
|
||
|
|
FileSpec child = GetChildFileSpecificationsFromThin(
|
||
|
|
object->ar_name.GetStringRef(), file);
|
||
|
|
if (ObjectFile::GetModuleSpecifications(child, 0, object->file_size,
|
||
|
|
specs)) {
|
||
|
|
ModuleSpec &spec =
|
||
|
|
specs.GetModuleSpecRefAtIndex(specs.GetSize() - 1);
|
||
|
|
llvm::sys::TimePoint<> object_mod_time(
|
||
|
|
std::chrono::seconds(object->modification_time));
|
||
|
|
spec.GetObjectName() = object->ar_name;
|
||
|
|
spec.SetObjectOffset(0);
|
||
|
|
spec.SetObjectSize(object->file_size);
|
||
|
|
spec.GetObjectModificationTime() = object_mod_time;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
const lldb::offset_t object_file_offset =
|
||
|
|
file_offset + object->file_offset;
|
||
|
|
if (object->file_offset < file_size && file_size > object_file_offset) {
|
||
|
|
if (ObjectFile::GetModuleSpecifications(
|
||
|
|
file, object_file_offset, file_size - object_file_offset,
|
||
|
|
specs)) {
|
||
|
|
ModuleSpec &spec =
|
||
|
|
specs.GetModuleSpecRefAtIndex(specs.GetSize() - 1);
|
||
|
|
llvm::sys::TimePoint<> object_mod_time(
|
||
|
|
std::chrono::seconds(object->modification_time));
|
||
|
|
spec.GetObjectName() = object->ar_name;
|
||
|
|
spec.SetObjectOffset(object_file_offset);
|
||
|
|
spec.SetObjectSize(object->file_size);
|
||
|
|
spec.GetObjectModificationTime() = object_mod_time;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const size_t end_count = specs.GetSize();
|
||
|
|
size_t num_specs_added = end_count - initial_count;
|
||
|
|
if (set_archive_arch && num_specs_added > 0) {
|
||
|
|
// The archive was created but we didn't have an architecture so we need to
|
||
|
|
// set it
|
||
|
|
for (size_t i = initial_count; i < end_count; ++i) {
|
||
|
|
ModuleSpec module_spec;
|
||
|
|
if (specs.GetModuleSpecAtIndex(i, module_spec)) {
|
||
|
|
if (module_spec.GetArchitecture().IsValid()) {
|
||
|
|
archive_sp->SetArchitecture(module_spec.GetArchitecture());
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return num_specs_added;
|
||
|
|
}
|