2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
//===-- ClangExternalASTSourceCommon.cpp ------------------------*- C++ -*-===//
|
|
//
|
|
// 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 "lldb/Symbol/ClangExternalASTSourceCommon.h"
|
|
#include "lldb/Utility/Stream.h"
|
|
|
|
#include <mutex>
|
|
|
|
using namespace lldb_private;
|
|
|
|
uint64_t g_TotalSizeOfMetadata = 0;
|
|
|
|
typedef llvm::DenseMap<clang::ExternalASTSource *,
|
|
ClangExternalASTSourceCommon *>
|
|
ASTSourceMap;
|
|
|
|
static ASTSourceMap &GetSourceMap(std::unique_lock<std::mutex> &guard) {
|
|
// Intentionally leaked to avoid problems with global destructors.
|
|
static ASTSourceMap *s_source_map = new ASTSourceMap;
|
|
static std::mutex s_mutex;
|
|
std::unique_lock<std::mutex> locked_guard(s_mutex);
|
|
guard.swap(locked_guard);
|
|
return *s_source_map;
|
|
}
|
|
|
|
ClangExternalASTSourceCommon *
|
|
ClangExternalASTSourceCommon::Lookup(clang::ExternalASTSource *source) {
|
|
std::unique_lock<std::mutex> guard;
|
|
ASTSourceMap &source_map = GetSourceMap(guard);
|
|
|
|
ASTSourceMap::iterator iter = source_map.find(source);
|
|
|
|
if (iter != source_map.end()) {
|
|
return iter->second;
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
ClangExternalASTSourceCommon::ClangExternalASTSourceCommon()
|
|
: clang::ExternalASTSource() {
|
|
g_TotalSizeOfMetadata += m_metadata.size();
|
|
std::unique_lock<std::mutex> guard;
|
|
GetSourceMap(guard)[this] = this;
|
|
}
|
|
|
|
ClangExternalASTSourceCommon::~ClangExternalASTSourceCommon() {
|
|
std::unique_lock<std::mutex> guard;
|
|
GetSourceMap(guard).erase(this);
|
|
g_TotalSizeOfMetadata -= m_metadata.size();
|
|
}
|
|
|
|
ClangASTMetadata *
|
|
ClangExternalASTSourceCommon::GetMetadata(const void *object) {
|
|
if (HasMetadata(object))
|
|
return &m_metadata[object];
|
|
else
|
|
return nullptr;
|
|
}
|
|
|
|
void ClangExternalASTSourceCommon::SetMetadata(const void *object,
|
|
ClangASTMetadata &metadata) {
|
|
uint64_t orig_size = m_metadata.size();
|
|
m_metadata[object] = metadata;
|
|
uint64_t new_size = m_metadata.size();
|
|
g_TotalSizeOfMetadata += (new_size - orig_size);
|
|
}
|
|
|
|
bool ClangExternalASTSourceCommon::HasMetadata(const void *object) {
|
|
return m_metadata.find(object) != m_metadata.end();
|
|
}
|
|
|
|
void ClangASTMetadata::Dump(Stream *s) {
|
|
lldb::user_id_t uid = GetUserID();
|
|
|
|
if (uid != LLDB_INVALID_UID) {
|
|
s->Printf("uid=0x%" PRIx64, uid);
|
|
}
|
|
|
|
uint64_t isa_ptr = GetISAPtr();
|
|
if (isa_ptr != 0) {
|
|
s->Printf("isa_ptr=0x%" PRIx64, isa_ptr);
|
|
}
|
|
|
|
const char *obj_ptr_name = GetObjectPtrName();
|
|
if (obj_ptr_name) {
|
|
s->Printf("obj_ptr_name=\"%s\" ", obj_ptr_name);
|
|
}
|
|
|
|
if (m_is_dynamic_cxx) {
|
|
s->Printf("is_dynamic_cxx=%i ", m_is_dynamic_cxx);
|
|
}
|
|
s->EOL();
|
|
}
|