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389bcb458f
This adds a new command line option, -udt-stats, which breaks down the stats of S_UDT records. These are one of the biggest contributors to the size of /DEBUG:FASTLINK PDBs, so they need some additional tools to be able to analyze their usage. This option will dig into each S_UDT record and determine what kind of record it points to, and then break down the statistics by the target type. The goal here is to identify how our object files differ from MSVC object files in S_UDT records, so that we can output fewer of them and reach size parity. llvm-svn: 312276
144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
//===- FormatUtil.h ------------------------------------------- *- C++ --*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVMPDBUTIL_FORMAT_UTIL_H
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#define LLVM_TOOLS_LLVMPDBUTIL_FORMAT_UTIL_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/CodeView/CodeView.h"
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#include "llvm/Support/Endian.h"
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#include "llvm/Support/FormatAdapters.h"
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#include "llvm/Support/FormatVariadic.h"
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#include <string>
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#include <type_traits>
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namespace llvm {
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namespace pdb {
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std::string truncateStringBack(StringRef S, uint32_t MaxLen);
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std::string truncateStringMiddle(StringRef S, uint32_t MaxLen);
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std::string truncateStringFront(StringRef S, uint32_t MaxLen);
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std::string truncateQuotedNameFront(StringRef Label, StringRef Name,
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uint32_t MaxLen);
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std::string truncateQuotedNameBack(StringRef Label, StringRef Name,
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uint32_t MaxLen);
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#define PUSH_MASKED_FLAG(Enum, Mask, TheOpt, Value, Text) \
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if (Enum::TheOpt == (Value & Mask)) \
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Opts.push_back(Text);
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#define PUSH_FLAG(Enum, TheOpt, Value, Text) \
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PUSH_MASKED_FLAG(Enum, Enum::TheOpt, TheOpt, Value, Text)
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#define RETURN_CASE(Enum, X, Ret) \
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case Enum::X: \
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return Ret;
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template <typename T> std::string formatUnknownEnum(T Value) {
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return formatv("unknown ({0})",
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static_cast<typename std::underlying_type<T>::type>(Value))
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.str();
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}
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std::string formatSegmentOffset(uint16_t Segment, uint32_t Offset);
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enum class CharacteristicStyle {
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HeaderDefinition, // format as windows header definition
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Descriptive, // format as human readable words
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};
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std::string formatSectionCharacteristics(
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uint32_t IndentLevel, uint32_t C, uint32_t FlagsPerLine,
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StringRef Separator,
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CharacteristicStyle Style = CharacteristicStyle::HeaderDefinition);
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std::string typesetItemList(ArrayRef<std::string> Opts, uint32_t IndentLevel,
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uint32_t GroupSize, StringRef Sep);
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std::string typesetStringList(uint32_t IndentLevel,
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ArrayRef<StringRef> Strings);
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std::string formatChunkKind(codeview::DebugSubsectionKind Kind,
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bool Friendly = true);
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std::string formatSymbolKind(codeview::SymbolKind K);
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StringRef formatTypeLeafKind(codeview::TypeLeafKind K);
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/// Returns the number of digits in the given integer.
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inline int NumDigits(uint64_t N) {
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if (N < 10ULL)
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return 1;
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if (N < 100ULL)
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return 2;
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if (N < 1000ULL)
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return 3;
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if (N < 10000ULL)
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return 4;
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if (N < 100000ULL)
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return 5;
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if (N < 1000000ULL)
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return 6;
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if (N < 10000000ULL)
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return 7;
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if (N < 100000000ULL)
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return 8;
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if (N < 1000000000ULL)
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return 9;
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if (N < 10000000000ULL)
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return 10;
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if (N < 100000000000ULL)
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return 11;
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if (N < 1000000000000ULL)
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return 12;
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if (N < 10000000000000ULL)
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return 13;
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if (N < 100000000000000ULL)
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return 14;
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if (N < 1000000000000000ULL)
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return 15;
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if (N < 10000000000000000ULL)
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return 16;
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if (N < 100000000000000000ULL)
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return 17;
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if (N < 1000000000000000000ULL)
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return 18;
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if (N < 10000000000000000000ULL)
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return 19;
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return 20;
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}
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namespace detail {
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template <typename T>
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struct EndianAdapter final
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: public FormatAdapter<support::detail::packed_endian_specific_integral<
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T, support::little, support::unaligned>> {
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using EndianType =
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support::detail::packed_endian_specific_integral<T, support::little,
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support::unaligned>;
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explicit EndianAdapter(EndianType &&Item)
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: FormatAdapter<EndianType>(std::move(Item)) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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format_provider<T>::format(static_cast<T>(this->Item), Stream, Style);
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}
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};
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} // namespace detail
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template <typename T>
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detail::EndianAdapter<T>
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fmtle(support::detail::packed_endian_specific_integral<T, support::little,
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support::unaligned>
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Value) {
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return detail::EndianAdapter<T>(std::move(Value));
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}
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}
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} // namespace llvm
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#endif
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