summaryrefslogtreecommitdiffstats
path: root/lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp')
-rw-r--r--lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp939
1 files changed, 410 insertions, 529 deletions
diff --git a/lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp b/lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
index 21435a99636..50961e933ba 100644
--- a/lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
+++ b/lldb/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp
@@ -11,18 +11,17 @@
#if defined(_WIN32) || defined(__ANDROID_NDK__)
// Defines from ar, missing on Windows
-#define ARMAG "!<arch>\n"
-#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];
+#define ARMAG "!<arch>\n"
+#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>
@@ -40,591 +39,473 @@ typedef struct ar_hdr
using namespace lldb;
using namespace lldb_private;
-
-
-ObjectContainerBSDArchive::Object::Object() :
- ar_name(),
- ar_date(0),
- ar_uid(0),
- ar_gid(0),
- ar_mode(0),
- ar_size(0),
- ar_file_offset(0),
- ar_file_size(0)
-{
-}
-
-void
-ObjectContainerBSDArchive::Object::Clear()
-{
- ar_name.Clear();
- ar_date = 0;
- ar_uid = 0;
- ar_gid = 0;
- ar_mode = 0;
- ar_size = 0;
- ar_file_offset = 0;
- ar_file_size = 0;
+ObjectContainerBSDArchive::Object::Object()
+ : ar_name(), ar_date(0), ar_uid(0), ar_gid(0), ar_mode(0), ar_size(0),
+ ar_file_offset(0), ar_file_size(0) {}
+
+void ObjectContainerBSDArchive::Object::Clear() {
+ ar_name.Clear();
+ ar_date = 0;
+ ar_uid = 0;
+ ar_gid = 0;
+ ar_mode = 0;
+ ar_size = 0;
+ ar_file_offset = 0;
+ ar_file_size = 0;
}
lldb::offset_t
-ObjectContainerBSDArchive::Object::Extract (const DataExtractor& data, lldb::offset_t offset)
-{
- size_t ar_name_len = 0;
- std::string str;
- char *err;
-
-
- // File header
- //
- // The common format is as follows.
- //
- // Offset Length Name Format
- // 0 16 File name ASCII right padded with spaces (no spaces allowed in file name)
- // 16 12 File mod Decimal as cstring right padded with spaces
- // 28 6 Owner ID Decimal as cstring right padded with spaces
- // 34 6 Group ID Decimal as cstring right padded with spaces
- // 40 8 File mode Octal as cstring right padded with spaces
- // 48 10 File byte size Decimal as cstring right padded with spaces
- // 58 2 File magic 0x60 0x0A
-
- // Make sure there is enough data for the file header and bail if not
- if (!data.ValidOffsetForDataOfSize(offset, 60))
- return LLDB_INVALID_OFFSET;
+ObjectContainerBSDArchive::Object::Extract(const DataExtractor &data,
+ lldb::offset_t offset) {
+ size_t ar_name_len = 0;
+ std::string str;
+ char *err;
+
+ // File header
+ //
+ // The common format is as follows.
+ //
+ // Offset Length Name Format
+ // 0 16 File name ASCII right padded with spaces (no spaces
+ // allowed in file name)
+ // 16 12 File mod Decimal as cstring right padded with
+ // spaces
+ // 28 6 Owner ID Decimal as cstring right padded with
+ // spaces
+ // 34 6 Group ID Decimal as cstring right padded with
+ // spaces
+ // 40 8 File mode Octal as cstring right padded with
+ // spaces
+ // 48 10 File byte size Decimal as cstring right padded with
+ // spaces
+ // 58 2 File magic 0x60 0x0A
+
+ // Make sure there is enough data for the file header and bail if not
+ if (!data.ValidOffsetForDataOfSize(offset, 60))
+ return LLDB_INVALID_OFFSET;
- str.assign ((const char *)data.GetData(&offset, 16), 16);
- if (str.find("#1/") == 0)
- {
- // If the name is longer than 16 bytes, or contains an embedded space
- // then it will use this format where the length of the name is
- // here and the name characters are after this header.
- ar_name_len = strtoul(str.c_str() + 3, &err, 10);
- }
- else
- {
- // Strip off any trailing spaces.
- const size_t last_pos = str.find_last_not_of(' ');
- if (last_pos != std::string::npos)
- {
- if (last_pos + 1 < 16)
- str.erase (last_pos + 1);
- }
- ar_name.SetCString(str.c_str());
+ str.assign((const char *)data.GetData(&offset, 16), 16);
+ if (str.find("#1/") == 0) {
+ // If the name is longer than 16 bytes, or contains an embedded space
+ // then it will use this format where the length of the name is
+ // here and the name characters are after this header.
+ ar_name_len = strtoul(str.c_str() + 3, &err, 10);
+ } else {
+ // Strip off any trailing spaces.
+ const size_t last_pos = str.find_last_not_of(' ');
+ if (last_pos != std::string::npos) {
+ if (last_pos + 1 < 16)
+ str.erase(last_pos + 1);
}
+ ar_name.SetCString(str.c_str());
+ }
- str.assign ((const char *)data.GetData(&offset, 12), 12);
- ar_date = strtoul(str.c_str(), &err, 10);
+ str.assign((const char *)data.GetData(&offset, 12), 12);
+ ar_date = strtoul(str.c_str(), &err, 10);
- str.assign ((const char *)data.GetData(&offset, 6), 6);
- ar_uid = strtoul(str.c_str(), &err, 10);
+ str.assign((const char *)data.GetData(&offset, 6), 6);
+ ar_uid = strtoul(str.c_str(), &err, 10);
- str.assign ((const char *)data.GetData(&offset, 6), 6);
- ar_gid = strtoul(str.c_str(), &err, 10);
+ str.assign((const char *)data.GetData(&offset, 6), 6);
+ ar_gid = strtoul(str.c_str(), &err, 10);
- str.assign ((const char *)data.GetData(&offset, 8), 8);
- ar_mode = strtoul(str.c_str(), &err, 8);
+ str.assign((const char *)data.GetData(&offset, 8), 8);
+ ar_mode = strtoul(str.c_str(), &err, 8);
- str.assign ((const char *)data.GetData(&offset, 10), 10);
- ar_size = strtoul(str.c_str(), &err, 10);
+ str.assign((const char *)data.GetData(&offset, 10), 10);
+ ar_size = strtoul(str.c_str(), &err, 10);
- str.assign ((const char *)data.GetData(&offset, 2), 2);
- if (str == ARFMAG)
- {
- if (ar_name_len > 0)
- {
- const void *ar_name_ptr = data.GetData(&offset, ar_name_len);
- // Make sure there was enough data for the string value and bail if not
- if (ar_name_ptr == NULL)
- return LLDB_INVALID_OFFSET;
- str.assign ((const char *)ar_name_ptr, ar_name_len);
- ar_name.SetCString (str.c_str());
- }
- ar_file_offset = offset;
- ar_file_size = ar_size - ar_name_len;
- return offset;
+ str.assign((const char *)data.GetData(&offset, 2), 2);
+ if (str == ARFMAG) {
+ if (ar_name_len > 0) {
+ const void *ar_name_ptr = data.GetData(&offset, ar_name_len);
+ // Make sure there was enough data for the string value and bail if not
+ if (ar_name_ptr == NULL)
+ return LLDB_INVALID_OFFSET;
+ str.assign((const char *)ar_name_ptr, ar_name_len);
+ ar_name.SetCString(str.c_str());
}
- return LLDB_INVALID_OFFSET;
-}
-
-ObjectContainerBSDArchive::Archive::Archive
-(
- const lldb_private::ArchSpec &arch,
- const lldb_private::TimeValue &time,
- lldb::offset_t file_offset,
- lldb_private::DataExtractor &data
-) :
- m_arch (arch),
- m_time (time),
- m_file_offset (file_offset),
- m_objects(),
- m_data (data)
-{
+ ar_file_offset = offset;
+ ar_file_size = ar_size - ar_name_len;
+ return offset;
+ }
+ return LLDB_INVALID_OFFSET;
}
-ObjectContainerBSDArchive::Archive::~Archive ()
-{
-}
-
-size_t
-ObjectContainerBSDArchive::Archive::ParseObjects ()
-{
- DataExtractor &data = m_data;
- std::string str;
- lldb::offset_t offset = 0;
- str.assign((const char *)data.GetData(&offset, SARMAG), SARMAG);
- if (str == ARMAG)
- {
- Object obj;
- do
- {
- offset = obj.Extract (data, offset);
- if (offset == LLDB_INVALID_OFFSET)
- break;
- size_t obj_idx = m_objects.size();
- m_objects.push_back(obj);
- // Insert all of the C strings out of order for now...
- m_object_name_to_index_map.Append (obj.ar_name.GetCString(), obj_idx);
- offset += obj.ar_file_size;
- obj.Clear();
- } while (data.ValidOffset(offset));
-
- // Now sort all of the object name pointers
- m_object_name_to_index_map.Sort ();
- }
- return m_objects.size();
+ObjectContainerBSDArchive::Archive::Archive(const lldb_private::ArchSpec &arch,
+ const lldb_private::TimeValue &time,
+ lldb::offset_t file_offset,
+ lldb_private::DataExtractor &data)
+ : m_arch(arch), m_time(time), m_file_offset(file_offset), m_objects(),
+ m_data(data) {}
+
+ObjectContainerBSDArchive::Archive::~Archive() {}
+
+size_t ObjectContainerBSDArchive::Archive::ParseObjects() {
+ DataExtractor &data = m_data;
+ std::string str;
+ lldb::offset_t offset = 0;
+ str.assign((const char *)data.GetData(&offset, SARMAG), SARMAG);
+ if (str == ARMAG) {
+ Object obj;
+ do {
+ offset = obj.Extract(data, offset);
+ if (offset == LLDB_INVALID_OFFSET)
+ break;
+ size_t obj_idx = m_objects.size();
+ m_objects.push_back(obj);
+ // Insert all of the C strings out of order for now...
+ m_object_name_to_index_map.Append(obj.ar_name.GetCString(), obj_idx);
+ offset += obj.ar_file_size;
+ obj.Clear();
+ } while (data.ValidOffset(offset));
+
+ // Now sort all of the object name pointers
+ m_object_name_to_index_map.Sort();
+ }
+ return m_objects.size();
}
ObjectContainerBSDArchive::Object *
-ObjectContainerBSDArchive::Archive::FindObject (const ConstString &object_name, const TimeValue &object_mod_time)
-{
- const ObjectNameToIndexMap::Entry *match = m_object_name_to_index_map.FindFirstValueForName (object_name.GetCString());
- if (match)
- {
- if (object_mod_time.IsValid())
- {
- const uint64_t object_date = object_mod_time.GetAsSecondsSinceJan1_1970();
- if (m_objects[match->value].ar_date == object_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].ar_date == object_date)
- return &m_objects[next_match->value];
- next_match = m_object_name_to_index_map.FindNextValueForName (next_match);
- }
- }
- else
- {
- return &m_objects[match->value];
- }
+ObjectContainerBSDArchive::Archive::FindObject(
+ const ConstString &object_name, const TimeValue &object_mod_time) {
+ const ObjectNameToIndexMap::Entry *match =
+ m_object_name_to_index_map.FindFirstValueForName(
+ object_name.GetCString());
+ if (match) {
+ if (object_mod_time.IsValid()) {
+ const uint64_t object_date = object_mod_time.GetAsSecondsSinceJan1_1970();
+ if (m_objects[match->value].ar_date == object_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].ar_date == object_date)
+ return &m_objects[next_match->value];
+ next_match =
+ m_object_name_to_index_map.FindNextValueForName(next_match);
+ }
+ } else {
+ return &m_objects[match->value];
}
- return NULL;
+ }
+ return NULL;
}
-
ObjectContainerBSDArchive::Archive::shared_ptr
-ObjectContainerBSDArchive::Archive::FindCachedArchive (const FileSpec &file, const ArchSpec &arch, const TimeValue &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) == false)
- 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;
+ObjectContainerBSDArchive::Archive::FindCachedArchive(
+ const FileSpec &file, const ArchSpec &arch, const TimeValue &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) == false)
+ 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...
+ }
}
- return archive_sp;
+ ++pos;
+ }
+ return archive_sp;
}
ObjectContainerBSDArchive::Archive::shared_ptr
-ObjectContainerBSDArchive::Archive::ParseAndCacheArchiveForFile
-(
- const FileSpec &file,
- const ArchSpec &arch,
- const TimeValue &time,
- lldb::offset_t file_offset,
- DataExtractor &data
-)
-{
- shared_ptr archive_sp(new Archive (arch, time, file_offset, data));
- 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();
- }
+ObjectContainerBSDArchive::Archive::ParseAndCacheArchiveForFile(
+ const FileSpec &file, const ArchSpec &arch, const TimeValue &time,
+ lldb::offset_t file_offset, DataExtractor &data) {
+ shared_ptr archive_sp(new Archive(arch, time, file_offset, data));
+ 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;
+ }
+ return archive_sp;
}
ObjectContainerBSDArchive::Archive::Map &
-ObjectContainerBSDArchive::Archive::GetArchiveCache ()
-{
- static Archive::Map g_archive_map;
- return g_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;
+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::Initialize() {
+ PluginManager::RegisterPlugin(GetPluginNameStatic(),
+ GetPluginDescriptionStatic(), CreateInstance,
+ GetModuleSpecifications);
}
-void
-ObjectContainerBSDArchive::Terminate()
-{
- PluginManager::UnregisterPlugin (CreateInstance);
+void ObjectContainerBSDArchive::Terminate() {
+ PluginManager::UnregisterPlugin(CreateInstance);
}
-
-lldb_private::ConstString
-ObjectContainerBSDArchive::GetPluginNameStatic()
-{
- static ConstString g_name("bsd-archive");
- return g_name;
+lldb_private::ConstString ObjectContainerBSDArchive::GetPluginNameStatic() {
+ static ConstString g_name("bsd-archive");
+ return g_name;
}
-const char *
-ObjectContainerBSDArchive::GetPluginDescriptionStatic()
-{
- return "BSD Archive object container reader.";
+const char *ObjectContainerBSDArchive::GetPluginDescriptionStatic() {
+ return "BSD Archive object container reader.";
}
-
-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)
- {
- 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);
- if (file && data_sp && ObjectContainerBSDArchive::MagicBytesMatch(data))
- {
- Timer scoped_timer (LLVM_PRETTY_FUNCTION,
- "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 (file->MemoryMapFileContentsIfLocal(file_offset, length));
- 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_ap(new ObjectContainerBSDArchive (module_sp,
- archive_data_sp,
- archive_data_offset,
- file,
- file_offset,
- length));
-
- if (container_ap.get())
- {
- if (archive_sp)
- {
- // We already have this archive in our cache, use it
- container_ap->SetArchive (archive_sp);
- return container_ap.release();
- }
- else if (container_ap->ParseHeader())
- return container_ap.release();
- }
- }
+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) {
+ 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);
+ if (file && data_sp && ObjectContainerBSDArchive::MagicBytesMatch(data)) {
+ Timer scoped_timer(
+ LLVM_PRETTY_FUNCTION,
+ "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(
+ file->MemoryMapFileContentsIfLocal(file_offset, length));
+ 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_ap(
+ new ObjectContainerBSDArchive(module_sp, archive_data_sp,
+ archive_data_offset, file,
+ file_offset, length));
+
+ if (container_ap.get()) {
+ if (archive_sp) {
+ // We already have this archive in our cache, use it
+ container_ap->SetArchive(archive_sp);
+ return container_ap.release();
+ } else if (container_ap->ParseHeader())
+ return container_ap.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_ap(new ObjectContainerBSDArchive (module_sp, data_sp, data_offset, file, file_offset, length));
-
- if (container_ap.get())
- {
- // We already have this archive in our cache, use it
- container_ap->SetArchive (archive_sp);
- return container_ap.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_ap(
+ new ObjectContainerBSDArchive(module_sp, data_sp, data_offset, file,
+ file_offset, length));
+
+ if (container_ap.get()) {
+ // We already have this archive in our cache, use it
+ container_ap->SetArchive(archive_sp);
+ return container_ap.release();
}
+ }
}
- return NULL;
+ }
+ return NULL;
}
-
-
-bool
-ObjectContainerBSDArchive::MagicBytesMatch (const DataExtractor &data)
-{
- uint32_t offset = 0;
- const char* armag = (const char* )data.PeekData (offset, sizeof(ar_hdr));
- if (armag && ::strncmp(armag, ARMAG, SARMAG) == 0)
- {
- armag += offsetof(struct ar_hdr, ar_fmag) + SARMAG;
- if (strncmp(armag, ARFMAG, 2) == 0)
- return true;
- }
- return false;
+bool ObjectContainerBSDArchive::MagicBytesMatch(const DataExtractor &data) {
+ uint32_t offset = 0;
+ const char *armag = (const char *)data.PeekData(offset, sizeof(ar_hdr));
+ if (armag && ::strncmp(armag, ARMAG, SARMAG) == 0) {
+ armag += offsetof(struct ar_hdr, ar_fmag) + SARMAG;
+ if (strncmp(armag, ARFMAG, 2) == 0)
+ return true;
+ }
+ return false;
}
-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
-) :
- ObjectContainer (module_sp, file, file_offset, size, data_sp, data_offset),
- m_archive_sp ()
-{
-}
-void
-ObjectContainerBSDArchive::SetArchive (Archive::shared_ptr &archive_sp)
-{
- m_archive_sp = archive_sp;
+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)
+ : ObjectContainer(module_sp, file, file_offset, size, data_sp, data_offset),
+ m_archive_sp() {}
+void ObjectContainerBSDArchive::SetArchive(Archive::shared_ptr &archive_sp) {
+ m_archive_sp = archive_sp;
}
-
-
-ObjectContainerBSDArchive::~ObjectContainerBSDArchive()
-{
-}
-
-bool
-ObjectContainerBSDArchive::ParseHeader ()
-{
- if (m_archive_sp.get() == NULL)
- {
- 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);
- }
- // Clear the m_data that contains the entire archive
- // data and let our m_archive_sp hold onto the data.
- m_data.Clear();
- }
+ObjectContainerBSDArchive::~ObjectContainerBSDArchive() {}
+
+bool ObjectContainerBSDArchive::ParseHeader() {
+ if (m_archive_sp.get() == NULL) {
+ 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);
+ }
+ // 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() != NULL;
+ }
+ return m_archive_sp.get() != NULL;
}
-void
-ObjectContainerBSDArchive::Dump (Stream *s) const
-{
- s->Printf("%p: ", static_cast<const void*>(this));
+void ObjectContainerBSDArchive::Dump(Stream *s) const {
+ s->Printf("%p: ", static_cast<const void *>(this));
+ s->Indent();
+ const size_t num_archs = GetNumArchitectures();
+ const size_t num_objects = GetNumObjects();
+ s->Printf("ObjectContainerBSDArchive, num_archs = %" PRIu64
+ ", num_objects = %" PRIu64 "",
+ (uint64_t)num_archs, (uint64_t)num_objects);
+ uint32_t i;
+ ArchSpec arch;
+ s->IndentMore();
+ for (i = 0; i < num_archs; i++) {
s->Indent();
- const size_t num_archs = GetNumArchitectures();
- const size_t num_objects = GetNumObjects();
- s->Printf("ObjectContainerBSDArchive, num_archs = %" PRIu64 ", num_objects = %" PRIu64 "", (uint64_t)num_archs, (uint64_t)num_objects);
- uint32_t i;
- ArchSpec arch;
- s->IndentMore();
- for (i=0; i<num_archs; i++)
- {
- s->Indent();
- GetArchitectureAtIndex(i, arch);
- s->Printf("arch[%u] = %s\n", i, arch.GetArchitectureName());
- }
- for (i=0; i<num_objects; i++)
- {
- s->Indent();
- s->Printf("object[%u] = %s\n", i, GetObjectNameAtIndex (i));
- }
- s->IndentLess();
- s->EOL();
+ GetArchitectureAtIndex(i, arch);
+ s->Printf("arch[%u] = %s\n", i, arch.GetArchitectureName());
+ }
+ for (i = 0; i < num_objects; i++) {
+ s->Indent();
+ s->Printf("object[%u] = %s\n", i, GetObjectNameAtIndex(i));
+ }
+ s->IndentLess();
+ s->EOL();
}
-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)
- {
- lldb::offset_t data_offset = object->ar_file_offset;
- return ObjectFile::FindPlugin (module_sp,
- file,
- m_offset + object->ar_file_offset,
- object->ar_file_size,
- m_archive_sp->GetData().GetSharedDataBuffer(),
- data_offset);
- }
- }
+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) {
+ lldb::offset_t data_offset = object->ar_file_offset;
+ return ObjectFile::FindPlugin(
+ module_sp, file, m_offset + object->ar_file_offset,
+ object->ar_file_size, m_archive_sp->GetData().GetSharedDataBuffer(),
+ data_offset);
+ }
}
- return ObjectFileSP();
+ }
+ return ObjectFileSP();
}
-
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
-lldb_private::ConstString
-ObjectContainerBSDArchive::GetPluginName()
-{
- return GetPluginNameStatic();
-}
-
-uint32_t
-ObjectContainerBSDArchive::GetPluginVersion()
-{
- return 1;
+lldb_private::ConstString ObjectContainerBSDArchive::GetPluginName() {
+ return GetPluginNameStatic();
}
+uint32_t ObjectContainerBSDArchive::GetPluginVersion() { return 1; }
+
+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());
+ if (file && data_sp && ObjectContainerBSDArchive::MagicBytesMatch(data)) {
+ const size_t initial_count = specs.GetSize();
+ TimeValue file_mod_time = file.GetModificationTime();
+ 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;
+ DataBufferSP data_sp(
+ file.MemoryMapFileContentsIfLocal(file_offset, file_size));
+ data.SetData(data_sp, 0, data_sp->GetByteSize());
+ archive_sp = Archive::ParseAndCacheArchiveForFile(
+ file, ArchSpec(), file_mod_time, file_offset, data);
+ }
-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());
- if (file && data_sp && ObjectContainerBSDArchive::MagicBytesMatch(data))
- {
- const size_t initial_count = specs.GetSize();
- TimeValue file_mod_time = file.GetModificationTime();
- 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;
- DataBufferSP data_sp (file.MemoryMapFileContentsIfLocal(file_offset, file_size));
- data.SetData (data_sp, 0, data_sp->GetByteSize());
- archive_sp = Archive::ParseAndCacheArchiveForFile(file, ArchSpec(), file_mod_time, file_offset, data);
- }
-
- 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)
- {
- const lldb::offset_t object_file_offset = file_offset + object->ar_file_offset;
- if (object->ar_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);
- TimeValue object_mod_time;
- object_mod_time.OffsetWithSeconds(object->ar_date);
- spec.GetObjectName () = object->ar_name;
- spec.SetObjectOffset (object_file_offset);
- spec.SetObjectSize (file_size - object_file_offset);
- spec.GetObjectModificationTime () = object_mod_time;
- }
- }
- }
+ 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) {
+ const lldb::offset_t object_file_offset =
+ file_offset + object->ar_file_offset;
+ if (object->ar_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);
+ TimeValue object_mod_time;
+ object_mod_time.OffsetWithSeconds(object->ar_date);
+ spec.GetObjectName() = object->ar_name;
+ spec.SetObjectOffset(object_file_offset);
+ spec.SetObjectSize(file_size - object_file_offset);
+ 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;
- }
- }
- }
+ }
+ }
+ 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;
+ }
}
- return 0;
+ return num_specs_added;
+ }
+ return 0;
}
OpenPOWER on IntegriCloud