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llvm-mirror/tools/llvm-pdbutil/FormatUtil.cpp
Zachary Turner 389bcb458f [llvm-pdbutil] Print detailed S_UDT stats.
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
2017-08-31 20:43:22 +00:00

259 lines
12 KiB
C++

//===- FormatUtil.cpp ----------------------------------------- *- C++ --*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "FormatUtil.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/DebugInfo/CodeView/CodeView.h"
#include "llvm/Support/FormatAdapters.h"
#include "llvm/Support/FormatVariadic.h"
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::pdb;
std::string llvm::pdb::truncateStringBack(StringRef S, uint32_t MaxLen) {
if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
return S;
assert(MaxLen >= 3);
uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3);
S = S.take_front(FinalLen);
return std::string(S) + std::string("...");
}
std::string llvm::pdb::truncateStringMiddle(StringRef S, uint32_t MaxLen) {
if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
return S;
assert(MaxLen >= 3);
uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3);
StringRef Front = S.take_front(FinalLen / 2);
StringRef Back = S.take_back(Front.size());
return std::string(Front) + std::string("...") + std::string(Back);
}
std::string llvm::pdb::truncateStringFront(StringRef S, uint32_t MaxLen) {
if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3)
return S;
assert(MaxLen >= 3);
S = S.take_back(MaxLen - 3);
return std::string("...") + std::string(S);
}
std::string llvm::pdb::truncateQuotedNameFront(StringRef Label, StringRef Name,
uint32_t MaxLen) {
uint32_t RequiredExtraChars = Label.size() + 1 + 2;
if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen)
return formatv("{0} \"{1}\"", Label, Name).str();
assert(MaxLen >= RequiredExtraChars);
std::string TN = truncateStringFront(Name, MaxLen - RequiredExtraChars);
return formatv("{0} \"{1}\"", Label, TN).str();
}
std::string llvm::pdb::truncateQuotedNameBack(StringRef Label, StringRef Name,
uint32_t MaxLen) {
uint32_t RequiredExtraChars = Label.size() + 1 + 2;
if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen)
return formatv("{0} \"{1}\"", Label, Name).str();
assert(MaxLen >= RequiredExtraChars);
std::string TN = truncateStringBack(Name, MaxLen - RequiredExtraChars);
return formatv("{0} \"{1}\"", Label, TN).str();
}
std::string llvm::pdb::typesetItemList(ArrayRef<std::string> Opts,
uint32_t IndentLevel, uint32_t GroupSize,
StringRef Sep) {
std::string Result;
while (!Opts.empty()) {
ArrayRef<std::string> ThisGroup;
ThisGroup = Opts.take_front(GroupSize);
Opts = Opts.drop_front(ThisGroup.size());
Result += join(ThisGroup, Sep);
if (!Opts.empty()) {
Result += Sep;
Result += "\n";
Result += formatv("{0}", fmt_repeat(' ', IndentLevel));
}
}
return Result;
}
std::string llvm::pdb::typesetStringList(uint32_t IndentLevel,
ArrayRef<StringRef> Strings) {
std::string Result = "[";
for (const auto &S : Strings) {
Result += formatv("\n{0}{1}", fmt_repeat(' ', IndentLevel), S);
}
Result += "]";
return Result;
}
std::string llvm::pdb::formatChunkKind(DebugSubsectionKind Kind,
bool Friendly) {
if (Friendly) {
switch (Kind) {
RETURN_CASE(DebugSubsectionKind, None, "none");
RETURN_CASE(DebugSubsectionKind, Symbols, "symbols");
RETURN_CASE(DebugSubsectionKind, Lines, "lines");
RETURN_CASE(DebugSubsectionKind, StringTable, "strings");
RETURN_CASE(DebugSubsectionKind, FileChecksums, "checksums");
RETURN_CASE(DebugSubsectionKind, FrameData, "frames");
RETURN_CASE(DebugSubsectionKind, InlineeLines, "inlinee lines");
RETURN_CASE(DebugSubsectionKind, CrossScopeImports, "xmi");
RETURN_CASE(DebugSubsectionKind, CrossScopeExports, "xme");
RETURN_CASE(DebugSubsectionKind, ILLines, "il lines");
RETURN_CASE(DebugSubsectionKind, FuncMDTokenMap, "func md token map");
RETURN_CASE(DebugSubsectionKind, TypeMDTokenMap, "type md token map");
RETURN_CASE(DebugSubsectionKind, MergedAssemblyInput,
"merged assembly input");
RETURN_CASE(DebugSubsectionKind, CoffSymbolRVA, "coff symbol rva");
}
} else {
switch (Kind) {
RETURN_CASE(DebugSubsectionKind, None, "none");
RETURN_CASE(DebugSubsectionKind, Symbols, "DEBUG_S_SYMBOLS");
RETURN_CASE(DebugSubsectionKind, Lines, "DEBUG_S_LINES");
RETURN_CASE(DebugSubsectionKind, StringTable, "DEBUG_S_STRINGTABLE");
RETURN_CASE(DebugSubsectionKind, FileChecksums, "DEBUG_S_FILECHKSMS");
RETURN_CASE(DebugSubsectionKind, FrameData, "DEBUG_S_FRAMEDATA");
RETURN_CASE(DebugSubsectionKind, InlineeLines, "DEBUG_S_INLINEELINES");
RETURN_CASE(DebugSubsectionKind, CrossScopeImports,
"DEBUG_S_CROSSSCOPEIMPORTS");
RETURN_CASE(DebugSubsectionKind, CrossScopeExports,
"DEBUG_S_CROSSSCOPEEXPORTS");
RETURN_CASE(DebugSubsectionKind, ILLines, "DEBUG_S_IL_LINES");
RETURN_CASE(DebugSubsectionKind, FuncMDTokenMap,
"DEBUG_S_FUNC_MDTOKEN_MAP");
RETURN_CASE(DebugSubsectionKind, TypeMDTokenMap,
"DEBUG_S_TYPE_MDTOKEN_MAP");
RETURN_CASE(DebugSubsectionKind, MergedAssemblyInput,
"DEBUG_S_MERGED_ASSEMBLYINPUT");
RETURN_CASE(DebugSubsectionKind, CoffSymbolRVA,
"DEBUG_S_COFF_SYMBOL_RVA");
}
}
return formatUnknownEnum(Kind);
}
std::string llvm::pdb::formatSymbolKind(SymbolKind K) {
switch (uint32_t(K)) {
#define SYMBOL_RECORD(EnumName, value, name) \
case EnumName: \
return #EnumName;
#define CV_SYMBOL(EnumName, value) SYMBOL_RECORD(EnumName, value, EnumName)
#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
}
return formatUnknownEnum(K);
}
StringRef llvm::pdb::formatTypeLeafKind(TypeLeafKind K) {
switch (K) {
#define TYPE_RECORD(EnumName, value, name) \
case EnumName: \
return #EnumName;
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
default:
llvm_unreachable("Unknown type leaf kind!");
}
return "";
}
std::string llvm::pdb::formatSegmentOffset(uint16_t Segment, uint32_t Offset) {
return formatv("{0:4}:{1:4}", Segment, Offset);
}
#define PUSH_CHARACTERISTIC_FLAG(Enum, TheOpt, Value, Style, Descriptive) \
PUSH_FLAG(Enum, TheOpt, Value, \
((Style == CharacteristicStyle::HeaderDefinition) ? #TheOpt \
: Descriptive))
#define PUSH_MASKED_CHARACTERISTIC_FLAG(Enum, Mask, TheOpt, Value, Style, \
Descriptive) \
PUSH_MASKED_FLAG(Enum, Mask, TheOpt, Value, \
((Style == CharacteristicStyle::HeaderDefinition) \
? #TheOpt \
: Descriptive))
std::string llvm::pdb::formatSectionCharacteristics(uint32_t IndentLevel,
uint32_t C,
uint32_t FlagsPerLine,
StringRef Separator,
CharacteristicStyle Style) {
using SC = COFF::SectionCharacteristics;
std::vector<std::string> Opts;
if (C == COFF::SC_Invalid)
return "invalid";
if (C == 0)
return "none";
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_TYPE_NOLOAD, C, Style, "noload");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_TYPE_NO_PAD, C, Style, "no padding");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_CNT_CODE, C, Style, "code");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_CNT_INITIALIZED_DATA, C, Style,
"initialized data");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_CNT_UNINITIALIZED_DATA, C, Style,
"uninitialized data");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_LNK_OTHER, C, Style, "other");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_LNK_INFO, C, Style, "info");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_LNK_REMOVE, C, Style, "remove");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_LNK_COMDAT, C, Style, "comdat");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_GPREL, C, Style, "gp rel");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_PURGEABLE, C, Style, "purgeable");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_16BIT, C, Style, "16-bit");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_LOCKED, C, Style, "locked");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_PRELOAD, C, Style, "preload");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_1BYTES, C,
Style, "1 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_2BYTES, C,
Style, "2 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_4BYTES, C,
Style, "4 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_8BYTES, C,
Style, "8 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_16BYTES, C,
Style, "16 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_32BYTES, C,
Style, "32 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_64BYTES, C,
Style, "64 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_128BYTES, C,
Style, "128 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_256BYTES, C,
Style, "256 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_512BYTES, C,
Style, "512 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_1024BYTES, C,
Style, "1024 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_2048BYTES, C,
Style, "2048 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_4096BYTES, C,
Style, "4096 byte align");
PUSH_MASKED_CHARACTERISTIC_FLAG(SC, 0xF00000, IMAGE_SCN_ALIGN_8192BYTES, C,
Style, "8192 byte align");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_LNK_NRELOC_OVFL, C, Style,
"noreloc overflow");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_DISCARDABLE, C, Style,
"discardable");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_NOT_CACHED, C, Style,
"not cached");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_NOT_PAGED, C, Style, "not paged");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_SHARED, C, Style, "shared");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_EXECUTE, C, Style,
"execute permissions");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_READ, C, Style,
"read permissions");
PUSH_CHARACTERISTIC_FLAG(SC, IMAGE_SCN_MEM_WRITE, C, Style,
"write permissions");
return typesetItemList(Opts, IndentLevel, FlagsPerLine, Separator);
}