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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
267 lines
8.9 KiB
C++
267 lines
8.9 KiB
C++
//===- PrettyFunctionDumper.cpp --------------------------------- *- C++ *-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "PrettyFunctionDumper.h"
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#include "LinePrinter.h"
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#include "PrettyBuiltinDumper.h"
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#include "llvm/DebugInfo/PDB/IPDBSession.h"
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#include "llvm/DebugInfo/PDB/PDBExtras.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
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#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/FormatVariadic.h"
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::pdb;
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namespace {
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template <class T>
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void dumpClassParentWithScopeOperator(const T &Symbol, LinePrinter &Printer,
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FunctionDumper &Dumper) {
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uint32_t ClassParentId = Symbol.getClassParentId();
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auto ClassParent =
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Symbol.getSession().template getConcreteSymbolById<PDBSymbolTypeUDT>(
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ClassParentId);
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if (!ClassParent)
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return;
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WithColor(Printer, PDB_ColorItem::Type).get() << ClassParent->getName();
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Printer << "::";
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}
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}
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FunctionDumper::FunctionDumper(LinePrinter &P)
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: PDBSymDumper(true), Printer(P) {}
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void FunctionDumper::start(const PDBSymbolTypeFunctionSig &Symbol,
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const char *Name, PointerType Pointer) {
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auto ReturnType = Symbol.getReturnType();
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if (!ReturnType)
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Printer << "<unknown-type>";
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else
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ReturnType->dump(*this);
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Printer << " ";
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uint32_t ClassParentId = Symbol.getClassParentId();
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auto ClassParent =
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Symbol.getSession().getConcreteSymbolById<PDBSymbolTypeUDT>(
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ClassParentId);
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PDB_CallingConv CC = Symbol.getCallingConvention();
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bool ShouldDumpCallingConvention = true;
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if ((ClassParent && CC == CallingConvention::ThisCall) ||
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(!ClassParent && CC == CallingConvention::NearStdCall)) {
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ShouldDumpCallingConvention = false;
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}
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if (Pointer == PointerType::None) {
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if (ShouldDumpCallingConvention)
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WithColor(Printer, PDB_ColorItem::Keyword).get() << CC << " ";
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if (ClassParent) {
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Printer << "(";
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WithColor(Printer, PDB_ColorItem::Identifier).get()
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<< ClassParent->getName();
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Printer << "::)";
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}
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} else {
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Printer << "(";
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if (ShouldDumpCallingConvention)
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WithColor(Printer, PDB_ColorItem::Keyword).get() << CC << " ";
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if (ClassParent) {
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WithColor(Printer, PDB_ColorItem::Identifier).get()
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<< ClassParent->getName();
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Printer << "::";
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}
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if (Pointer == PointerType::Reference)
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Printer << "&";
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else
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Printer << "*";
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if (Name)
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WithColor(Printer, PDB_ColorItem::Identifier).get() << Name;
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Printer << ")";
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}
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Printer << "(";
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if (auto ChildEnum = Symbol.getArguments()) {
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uint32_t Index = 0;
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while (auto Arg = ChildEnum->getNext()) {
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Arg->dump(*this);
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if (++Index < ChildEnum->getChildCount())
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Printer << ", ";
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}
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}
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Printer << ")";
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if (Symbol.isConstType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << " const";
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if (Symbol.isVolatileType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << " volatile";
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}
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void FunctionDumper::start(const PDBSymbolFunc &Symbol, PointerType Pointer) {
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uint64_t FuncStart = Symbol.getVirtualAddress();
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uint64_t FuncEnd = FuncStart + Symbol.getLength();
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Printer << "func [";
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WithColor(Printer, PDB_ColorItem::Address).get() << format_hex(FuncStart, 10);
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if (auto DebugStart = Symbol.findOneChild<PDBSymbolFuncDebugStart>()) {
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uint64_t Prologue = DebugStart->getVirtualAddress() - FuncStart;
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WithColor(Printer, PDB_ColorItem::Offset).get()
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<< formatv("+{0,2}", Prologue);
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}
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Printer << " - ";
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WithColor(Printer, PDB_ColorItem::Address).get() << format_hex(FuncEnd, 10);
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if (auto DebugEnd = Symbol.findOneChild<PDBSymbolFuncDebugEnd>()) {
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uint64_t Epilogue = FuncEnd - DebugEnd->getVirtualAddress();
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WithColor(Printer, PDB_ColorItem::Offset).get()
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<< formatv("-{0,2}", Epilogue);
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}
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WithColor(Printer, PDB_ColorItem::Comment).get()
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<< formatv(" | sizeof={0,3}", Symbol.getLength());
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Printer << "] (";
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if (Symbol.hasFramePointer()) {
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WithColor(Printer, PDB_ColorItem::Register).get()
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<< Symbol.getLocalBasePointerRegisterId();
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} else {
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WithColor(Printer, PDB_ColorItem::Register).get() << "FPO";
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}
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Printer << ") ";
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if (Symbol.isVirtual() || Symbol.isPureVirtual())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << "virtual ";
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auto Signature = Symbol.getSignature();
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if (!Signature) {
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WithColor(Printer, PDB_ColorItem::Identifier).get() << Symbol.getName();
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if (Pointer == PointerType::Pointer)
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Printer << "*";
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else if (Pointer == FunctionDumper::PointerType::Reference)
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Printer << "&";
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return;
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}
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auto ReturnType = Signature->getReturnType();
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ReturnType->dump(*this);
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Printer << " ";
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auto ClassParent = Symbol.getClassParent();
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CallingConvention CC = Signature->getCallingConvention();
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if (Pointer != FunctionDumper::PointerType::None)
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Printer << "(";
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if ((ClassParent && CC != CallingConvention::ThisCall) ||
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(!ClassParent && CC != CallingConvention::NearStdCall)) {
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WithColor(Printer, PDB_ColorItem::Keyword).get()
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<< Signature->getCallingConvention() << " ";
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}
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WithColor(Printer, PDB_ColorItem::Identifier).get() << Symbol.getName();
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if (Pointer != FunctionDumper::PointerType::None) {
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if (Pointer == PointerType::Pointer)
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Printer << "*";
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else if (Pointer == FunctionDumper::PointerType::Reference)
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Printer << "&";
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Printer << ")";
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}
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Printer << "(";
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if (auto Arguments = Symbol.getArguments()) {
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uint32_t Index = 0;
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while (auto Arg = Arguments->getNext()) {
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auto ArgType = Arg->getType();
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ArgType->dump(*this);
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WithColor(Printer, PDB_ColorItem::Identifier).get() << " "
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<< Arg->getName();
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if (++Index < Arguments->getChildCount())
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Printer << ", ";
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}
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if (Signature->isCVarArgs())
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Printer << ", ...";
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}
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Printer << ")";
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if (Symbol.isConstType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << " const";
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if (Symbol.isVolatileType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << " volatile";
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if (Symbol.isPureVirtual())
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Printer << " = 0";
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}
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void FunctionDumper::dump(const PDBSymbolTypeArray &Symbol) {
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auto ElementType = Symbol.getElementType();
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ElementType->dump(*this);
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Printer << "[";
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WithColor(Printer, PDB_ColorItem::LiteralValue).get() << Symbol.getLength();
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Printer << "]";
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}
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void FunctionDumper::dump(const PDBSymbolTypeBuiltin &Symbol) {
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BuiltinDumper Dumper(Printer);
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Dumper.start(Symbol);
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}
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void FunctionDumper::dump(const PDBSymbolTypeEnum &Symbol) {
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dumpClassParentWithScopeOperator(Symbol, Printer, *this);
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WithColor(Printer, PDB_ColorItem::Type).get() << Symbol.getName();
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}
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void FunctionDumper::dump(const PDBSymbolTypeFunctionArg &Symbol) {
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// PDBSymbolTypeFunctionArg is just a shim over the real argument. Just drill
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// through to the real thing and dump it.
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uint32_t TypeId = Symbol.getTypeId();
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auto Type = Symbol.getSession().getSymbolById(TypeId);
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if (Type)
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Printer << "<unknown-type>";
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else
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Type->dump(*this);
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}
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void FunctionDumper::dump(const PDBSymbolTypeTypedef &Symbol) {
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dumpClassParentWithScopeOperator(Symbol, Printer, *this);
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WithColor(Printer, PDB_ColorItem::Type).get() << Symbol.getName();
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}
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void FunctionDumper::dump(const PDBSymbolTypePointer &Symbol) {
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auto PointeeType = Symbol.getPointeeType();
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if (!PointeeType)
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return;
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if (auto FuncSig = unique_dyn_cast<PDBSymbolTypeFunctionSig>(PointeeType)) {
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FunctionDumper NestedDumper(Printer);
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PointerType Pointer =
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Symbol.isReference() ? PointerType::Reference : PointerType::Pointer;
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NestedDumper.start(*FuncSig, nullptr, Pointer);
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} else {
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if (Symbol.isConstType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << "const ";
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if (Symbol.isVolatileType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << "volatile ";
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PointeeType->dump(*this);
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Printer << (Symbol.isReference() ? "&" : "*");
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if (Symbol.getRawSymbol().isRestrictedType())
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WithColor(Printer, PDB_ColorItem::Keyword).get() << " __restrict";
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}
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}
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void FunctionDumper::dump(const PDBSymbolTypeUDT &Symbol) {
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WithColor(Printer, PDB_ColorItem::Type).get() << Symbol.getName();
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}
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