Files
llvm/lldb/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp
Pavel Labath 4d35d6b3b3 Change UniqueCStringMap to use ConstString as the key
Summary:
UniqueCStringMap "sorts" the entries for fast lookup, but really it only cares about uniqueness.  ConstString can be compared by pointer alone, rather than with strcmp, resulting in much faster comparisons.  Change the interface to take ConstString instead, and propagate use of the type to the callers where appropriate.

Reviewers: #lldb, clayborg

Reviewed By: clayborg

Subscribers: labath, jasonmolenda, lldb-commits

Differential Revision: https://reviews.llvm.org/D32316
Patch by Scott Smith <scott.smith@purestorage.com>.

llvm-svn: 301908
2017-05-02 10:17:30 +00:00

83 lines
2.6 KiB
C++

//===-- NameToDIE.cpp -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "NameToDIE.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/RegularExpression.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/StreamString.h"
#include "DWARFCompileUnit.h"
#include "DWARFDebugInfo.h"
#include "DWARFDebugInfoEntry.h"
#include "SymbolFileDWARF.h"
using namespace lldb;
using namespace lldb_private;
void NameToDIE::Finalize() {
m_map.Sort();
m_map.SizeToFit();
}
void NameToDIE::Insert(const ConstString &name, const DIERef &die_ref) {
m_map.Append(name, die_ref);
}
size_t NameToDIE::Find(const ConstString &name, DIEArray &info_array) const {
return m_map.GetValues(name, info_array);
}
size_t NameToDIE::Find(const RegularExpression &regex,
DIEArray &info_array) const {
return m_map.GetValues(regex, info_array);
}
size_t NameToDIE::FindAllEntriesForCompileUnit(dw_offset_t cu_offset,
DIEArray &info_array) const {
const size_t initial_size = info_array.size();
const uint32_t size = m_map.GetSize();
for (uint32_t i = 0; i < size; ++i) {
const DIERef &die_ref = m_map.GetValueAtIndexUnchecked(i);
if (cu_offset == die_ref.cu_offset)
info_array.push_back(die_ref);
}
return info_array.size() - initial_size;
}
void NameToDIE::Dump(Stream *s) {
const uint32_t size = m_map.GetSize();
for (uint32_t i = 0; i < size; ++i) {
ConstString cstr = m_map.GetCStringAtIndex(i);
const DIERef &die_ref = m_map.GetValueAtIndexUnchecked(i);
s->Printf("%p: {0x%8.8x/0x%8.8x} \"%s\"\n", (const void *)cstr.GetCString(),
die_ref.cu_offset, die_ref.die_offset, cstr.GetCString());
}
}
void NameToDIE::ForEach(
std::function<bool(ConstString name, const DIERef &die_ref)> const
&callback) const {
const uint32_t size = m_map.GetSize();
for (uint32_t i = 0; i < size; ++i) {
if (!callback(m_map.GetCStringAtIndexUnchecked(i),
m_map.GetValueAtIndexUnchecked(i)))
break;
}
}
void NameToDIE::Append(const NameToDIE &other) {
const uint32_t size = other.m_map.GetSize();
for (uint32_t i = 0; i < size; ++i) {
m_map.Append(other.m_map.GetCStringAtIndexUnchecked(i),
other.m_map.GetValueAtIndexUnchecked(i));
}
}