1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-19 11:02:59 +02:00
llvm-mirror/tools/llvm-pdbutil/PrettyFunctionDumper.cpp
Tom Tan 65f5c3005c [COFF, ARM64] Add CodeView register mapping
CodeView has its own register map which is defined in cvconst.h. Missing this
mapping before saving register to CodeView causes debugger to show incorrect
value for all register based variables, like variables in register and local
variables addressed by register (stack pointer + offset).

This change added mapping between LLVM register and CodeView register so the
correct register number will be stored to CodeView/PDB, it aso fixed the
mapping from CodeView register number to register name based on current
CPUType but print PDB to yaml still assumes X86 CPU and needs to be fixed.

Differential Revision: https://reviews.llvm.org/D62608

llvm-svn: 362280
2019-05-31 23:43:31 +00:00

268 lines
9.0 KiB
C++

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