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authormonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
committermonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
commit06e5c21a835c0e923506c4ff27929f34e00761c2 (patch)
tree75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
parent03f024c4412e3aa613bb543cf1660176320ba8f4 (diff)
downloadydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz
fix ya.make
Diffstat (limited to 'contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp')
-rw-r--r--contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp212
1 files changed, 212 insertions, 0 deletions
diff --git a/contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp b/contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
new file mode 100644
index 0000000000..a522935e34
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+++ b/contrib/libs/llvm12/tools/llvm-pdbutil/PrettyClassLayoutGraphicalDumper.cpp
@@ -0,0 +1,212 @@
+//===- PrettyClassLayoutGraphicalDumper.h -----------------------*- 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 "PrettyClassLayoutGraphicalDumper.h"
+
+#include "LinePrinter.h"
+#include "PrettyClassDefinitionDumper.h"
+#include "PrettyEnumDumper.h"
+#include "PrettyFunctionDumper.h"
+#include "PrettyTypedefDumper.h"
+#include "PrettyVariableDumper.h"
+#include "PrettyVariableDumper.h"
+#include "llvm-pdbutil.h"
+
+#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
+#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
+#include "llvm/DebugInfo/PDB/UDTLayout.h"
+#include "llvm/Support/Format.h"
+
+using namespace llvm;
+using namespace llvm::pdb;
+
+PrettyClassLayoutGraphicalDumper::PrettyClassLayoutGraphicalDumper(
+ LinePrinter &P, uint32_t RecurseLevel, uint32_t InitialOffset)
+ : PDBSymDumper(true), Printer(P), RecursionLevel(RecurseLevel),
+ ClassOffsetZero(InitialOffset), CurrentAbsoluteOffset(InitialOffset) {}
+
+bool PrettyClassLayoutGraphicalDumper::start(const UDTLayoutBase &Layout) {
+
+ if (RecursionLevel == 1 &&
+ opts::pretty::ClassFormat == opts::pretty::ClassDefinitionFormat::All) {
+ for (auto &Other : Layout.other_items())
+ Other->dump(*this);
+ for (auto &Func : Layout.funcs())
+ Func->dump(*this);
+ }
+
+ const BitVector &UseMap = Layout.usedBytes();
+ int NextPaddingByte = UseMap.find_first_unset();
+
+ for (auto &Item : Layout.layout_items()) {
+ // Calculate the absolute offset of the first byte of the next field.
+ uint32_t RelativeOffset = Item->getOffsetInParent();
+ CurrentAbsoluteOffset = ClassOffsetZero + RelativeOffset;
+
+ // This might be an empty base, in which case it could extend outside the
+ // bounds of the parent class.
+ if (RelativeOffset < UseMap.size() && (Item->getSize() > 0)) {
+ // If there is any remaining padding in this class, and the offset of the
+ // new item is after the padding, then we must have just jumped over some
+ // padding. Print a padding row and then look for where the next block
+ // of padding begins.
+ if ((NextPaddingByte >= 0) &&
+ (RelativeOffset > uint32_t(NextPaddingByte))) {
+ printPaddingRow(RelativeOffset - NextPaddingByte);
+ NextPaddingByte = UseMap.find_next_unset(RelativeOffset);
+ }
+ }
+
+ CurrentItem = Item;
+ if (Item->isVBPtr()) {
+ VTableLayoutItem &Layout = static_cast<VTableLayoutItem &>(*CurrentItem);
+
+ VariableDumper VarDumper(Printer);
+ VarDumper.startVbptr(CurrentAbsoluteOffset, Layout.getSize());
+ } else {
+ if (auto Sym = Item->getSymbol())
+ Sym->dump(*this);
+ }
+
+ if (Item->getLayoutSize() > 0) {
+ uint32_t Prev = RelativeOffset + Item->getLayoutSize() - 1;
+ if (Prev < UseMap.size())
+ NextPaddingByte = UseMap.find_next_unset(Prev);
+ }
+ }
+
+ auto TailPadding = Layout.tailPadding();
+ if (TailPadding > 0) {
+ if (TailPadding != 1 || Layout.getSize() != 1) {
+ Printer.NewLine();
+ WithColor(Printer, PDB_ColorItem::Padding).get()
+ << "<padding> (" << TailPadding << " bytes)";
+ DumpedAnything = true;
+ }
+ }
+
+ return DumpedAnything;
+}
+
+void PrettyClassLayoutGraphicalDumper::printPaddingRow(uint32_t Amount) {
+ if (Amount == 0)
+ return;
+
+ Printer.NewLine();
+ WithColor(Printer, PDB_ColorItem::Padding).get() << "<padding> (" << Amount
+ << " bytes)";
+ DumpedAnything = true;
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(
+ const PDBSymbolTypeBaseClass &Symbol) {
+ assert(CurrentItem != nullptr);
+
+ Printer.NewLine();
+ BaseClassLayout &Layout = static_cast<BaseClassLayout &>(*CurrentItem);
+
+ std::string Label = "base";
+ if (Layout.isVirtualBase()) {
+ Label.insert(Label.begin(), 'v');
+ if (Layout.getBase().isIndirectVirtualBaseClass())
+ Label.insert(Label.begin(), 'i');
+ }
+ Printer << Label << " ";
+
+ uint32_t Size = Layout.isEmptyBase() ? 1 : Layout.getLayoutSize();
+
+ WithColor(Printer, PDB_ColorItem::Offset).get()
+ << "+" << format_hex(CurrentAbsoluteOffset, 4) << " [sizeof=" << Size
+ << "] ";
+
+ WithColor(Printer, PDB_ColorItem::Identifier).get() << Layout.getName();
+
+ if (shouldRecurse()) {
+ Printer.Indent();
+ uint32_t ChildOffsetZero = ClassOffsetZero + Layout.getOffsetInParent();
+ PrettyClassLayoutGraphicalDumper BaseDumper(Printer, RecursionLevel + 1,
+ ChildOffsetZero);
+ DumpedAnything |= BaseDumper.start(Layout);
+ Printer.Unindent();
+ }
+
+ DumpedAnything = true;
+}
+
+bool PrettyClassLayoutGraphicalDumper::shouldRecurse() const {
+ uint32_t Limit = opts::pretty::ClassRecursionDepth;
+ if (Limit == 0)
+ return true;
+ return RecursionLevel < Limit;
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(const PDBSymbolData &Symbol) {
+ VariableDumper VarDumper(Printer);
+ VarDumper.start(Symbol, ClassOffsetZero);
+
+ if (CurrentItem != nullptr) {
+ DataMemberLayoutItem &Layout =
+ static_cast<DataMemberLayoutItem &>(*CurrentItem);
+
+ if (Layout.hasUDTLayout() && shouldRecurse()) {
+ uint32_t ChildOffsetZero = ClassOffsetZero + Layout.getOffsetInParent();
+ Printer.Indent();
+ PrettyClassLayoutGraphicalDumper TypeDumper(Printer, RecursionLevel + 1,
+ ChildOffsetZero);
+ TypeDumper.start(Layout.getUDTLayout());
+ Printer.Unindent();
+ }
+ }
+
+ DumpedAnything = true;
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(const PDBSymbolTypeVTable &Symbol) {
+ assert(CurrentItem != nullptr);
+
+ VariableDumper VarDumper(Printer);
+ VarDumper.start(Symbol, ClassOffsetZero);
+
+ DumpedAnything = true;
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(const PDBSymbolTypeEnum &Symbol) {
+ DumpedAnything = true;
+ Printer.NewLine();
+ EnumDumper Dumper(Printer);
+ Dumper.start(Symbol);
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(
+ const PDBSymbolTypeTypedef &Symbol) {
+ DumpedAnything = true;
+ Printer.NewLine();
+ TypedefDumper Dumper(Printer);
+ Dumper.start(Symbol);
+}
+
+void PrettyClassLayoutGraphicalDumper::dump(
+ const PDBSymbolTypeBuiltin &Symbol) {}
+
+void PrettyClassLayoutGraphicalDumper::dump(const PDBSymbolTypeUDT &Symbol) {}
+
+void PrettyClassLayoutGraphicalDumper::dump(const PDBSymbolFunc &Symbol) {
+ if (Printer.IsSymbolExcluded(Symbol.getName()))
+ return;
+ if (Symbol.isCompilerGenerated() && opts::pretty::ExcludeCompilerGenerated)
+ return;
+ if (Symbol.getLength() == 0 && !Symbol.isPureVirtual() &&
+ !Symbol.isIntroVirtualFunction())
+ return;
+
+ DumpedAnything = true;
+ Printer.NewLine();
+ FunctionDumper Dumper(Printer);
+ Dumper.start(Symbol, FunctionDumper::PointerType::None);
+}