add_llvm_utility(yaml2obj
yaml2obj.cpp
+ yaml2coff.cpp
)
target_link_libraries(yaml2obj LLVMSupport)
--- /dev/null
+//===- yaml2coff - Convert YAML to a COFF object file ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief The COFF component of yaml2obj.
+///
+//===----------------------------------------------------------------------===//
+
+#include "yaml2obj.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Object/COFFYAML.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/raw_ostream.h"
+#include <vector>
+
+using namespace llvm;
+
+/// This parses a yaml stream that represents a COFF object file.
+/// See docs/yaml2obj for the yaml scheema.
+struct COFFParser {
+ COFFParser(COFFYAML::Object &Obj) : Obj(Obj) {
+ // A COFF string table always starts with a 4 byte size field. Offsets into
+ // it include this size, so allocate it now.
+ StringTable.append(4, 0);
+ }
+
+ bool parseSections() {
+ for (std::vector<COFFYAML::Section>::iterator i = Obj.Sections.begin(),
+ e = Obj.Sections.end(); i != e; ++i) {
+ COFFYAML::Section &Sec = *i;
+
+ // If the name is less than 8 bytes, store it in place, otherwise
+ // store it in the string table.
+ StringRef Name = Sec.Name;
+
+ if (Name.size() <= COFF::NameSize) {
+ std::copy(Name.begin(), Name.end(), Sec.Header.Name);
+ } else {
+ // Add string to the string table and format the index for output.
+ unsigned Index = getStringIndex(Name);
+ std::string str = utostr(Index);
+ if (str.size() > 7) {
+ errs() << "String table got too large";
+ return false;
+ }
+ Sec.Header.Name[0] = '/';
+ std::copy(str.begin(), str.end(), Sec.Header.Name + 1);
+ }
+
+ Sec.Header.Characteristics |= (Log2_32(Sec.Alignment) + 1) << 20;
+ }
+ return true;
+ }
+
+ bool parseSymbols() {
+ for (std::vector<COFFYAML::Symbol>::iterator i = Obj.Symbols.begin(),
+ e = Obj.Symbols.end(); i != e; ++i) {
+ COFFYAML::Symbol &Sym = *i;
+
+ // If the name is less than 8 bytes, store it in place, otherwise
+ // store it in the string table.
+ StringRef Name = Sym.Name;
+ if (Name.size() <= COFF::NameSize) {
+ std::copy(Name.begin(), Name.end(), Sym.Header.Name);
+ } else {
+ // Add string to the string table and format the index for output.
+ unsigned Index = getStringIndex(Name);
+ *reinterpret_cast<support::aligned_ulittle32_t*>(
+ Sym.Header.Name + 4) = Index;
+ }
+
+ Sym.Header.Type = Sym.SimpleType;
+ Sym.Header.Type |= Sym.ComplexType << COFF::SCT_COMPLEX_TYPE_SHIFT;
+ }
+ return true;
+ }
+
+ bool parse() {
+ if (!parseSections())
+ return false;
+ if (!parseSymbols())
+ return false;
+ return true;
+ }
+
+ unsigned getStringIndex(StringRef Str) {
+ StringMap<unsigned>::iterator i = StringTableMap.find(Str);
+ if (i == StringTableMap.end()) {
+ unsigned Index = StringTable.size();
+ StringTable.append(Str.begin(), Str.end());
+ StringTable.push_back(0);
+ StringTableMap[Str] = Index;
+ return Index;
+ }
+ return i->second;
+ }
+
+ COFFYAML::Object &Obj;
+
+ StringMap<unsigned> StringTableMap;
+ std::string StringTable;
+};
+
+// Take a CP and assign addresses and sizes to everything. Returns false if the
+// layout is not valid to do.
+static bool layoutCOFF(COFFParser &CP) {
+ uint32_t SectionTableStart = 0;
+ uint32_t SectionTableSize = 0;
+
+ // The section table starts immediately after the header, including the
+ // optional header.
+ SectionTableStart = sizeof(COFF::header) + CP.Obj.Header.SizeOfOptionalHeader;
+ SectionTableSize = sizeof(COFF::section) * CP.Obj.Sections.size();
+
+ uint32_t CurrentSectionDataOffset = SectionTableStart + SectionTableSize;
+
+ // Assign each section data address consecutively.
+ for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
+ e = CP.Obj.Sections.end();
+ i != e; ++i) {
+ StringRef SecData = i->SectionData.getHex();
+ if (!SecData.empty()) {
+ i->Header.SizeOfRawData = SecData.size()/2;
+ i->Header.PointerToRawData = CurrentSectionDataOffset;
+ CurrentSectionDataOffset += i->Header.SizeOfRawData;
+ if (!i->Relocations.empty()) {
+ i->Header.PointerToRelocations = CurrentSectionDataOffset;
+ i->Header.NumberOfRelocations = i->Relocations.size();
+ CurrentSectionDataOffset += i->Header.NumberOfRelocations *
+ COFF::RelocationSize;
+ }
+ // TODO: Handle alignment.
+ } else {
+ i->Header.SizeOfRawData = 0;
+ i->Header.PointerToRawData = 0;
+ }
+ }
+
+ uint32_t SymbolTableStart = CurrentSectionDataOffset;
+
+ // Calculate number of symbols.
+ uint32_t NumberOfSymbols = 0;
+ for (std::vector<COFFYAML::Symbol>::iterator i = CP.Obj.Symbols.begin(),
+ e = CP.Obj.Symbols.end();
+ i != e; ++i) {
+ unsigned AuxBytes = i->AuxiliaryData.getHex().size() / 2;
+ if (AuxBytes % COFF::SymbolSize != 0) {
+ errs() << "AuxiliaryData size not a multiple of symbol size!\n";
+ return false;
+ }
+ i->Header.NumberOfAuxSymbols = AuxBytes / COFF::SymbolSize;
+ NumberOfSymbols += 1 + i->Header.NumberOfAuxSymbols;
+ }
+
+ // Store all the allocated start addresses in the header.
+ CP.Obj.Header.NumberOfSections = CP.Obj.Sections.size();
+ CP.Obj.Header.NumberOfSymbols = NumberOfSymbols;
+ CP.Obj.Header.PointerToSymbolTable = SymbolTableStart;
+
+ *reinterpret_cast<support::ulittle32_t *>(&CP.StringTable[0])
+ = CP.StringTable.size();
+
+ return true;
+}
+
+template <typename value_type>
+struct binary_le_impl {
+ value_type Value;
+ binary_le_impl(value_type V) : Value(V) {}
+};
+
+template <typename value_type>
+raw_ostream &operator <<( raw_ostream &OS
+ , const binary_le_impl<value_type> &BLE) {
+ char Buffer[sizeof(BLE.Value)];
+ support::endian::write<value_type, support::little, support::unaligned>(
+ Buffer, BLE.Value);
+ OS.write(Buffer, sizeof(BLE.Value));
+ return OS;
+}
+
+template <typename value_type>
+binary_le_impl<value_type> binary_le(value_type V) {
+ return binary_le_impl<value_type>(V);
+}
+
+static bool writeHexData(StringRef Data, raw_ostream &OS) {
+ unsigned Size = Data.size();
+ if (Size % 2)
+ return false;
+
+ for (unsigned I = 0; I != Size; I += 2) {
+ uint8_t Byte;
+ if (Data.substr(I, 2).getAsInteger(16, Byte))
+ return false;
+ OS.write(Byte);
+ }
+
+ return true;
+}
+
+bool writeCOFF(COFFParser &CP, raw_ostream &OS) {
+ OS << binary_le(CP.Obj.Header.Machine)
+ << binary_le(CP.Obj.Header.NumberOfSections)
+ << binary_le(CP.Obj.Header.TimeDateStamp)
+ << binary_le(CP.Obj.Header.PointerToSymbolTable)
+ << binary_le(CP.Obj.Header.NumberOfSymbols)
+ << binary_le(CP.Obj.Header.SizeOfOptionalHeader)
+ << binary_le(CP.Obj.Header.Characteristics);
+
+ // Output section table.
+ for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
+ e = CP.Obj.Sections.end();
+ i != e; ++i) {
+ OS.write(i->Header.Name, COFF::NameSize);
+ OS << binary_le(i->Header.VirtualSize)
+ << binary_le(i->Header.VirtualAddress)
+ << binary_le(i->Header.SizeOfRawData)
+ << binary_le(i->Header.PointerToRawData)
+ << binary_le(i->Header.PointerToRelocations)
+ << binary_le(i->Header.PointerToLineNumbers)
+ << binary_le(i->Header.NumberOfRelocations)
+ << binary_le(i->Header.NumberOfLineNumbers)
+ << binary_le(i->Header.Characteristics);
+ }
+
+ // Output section data.
+ for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
+ e = CP.Obj.Sections.end();
+ i != e; ++i) {
+ StringRef SecData = i->SectionData.getHex();
+ if (!SecData.empty()) {
+ if (!writeHexData(SecData, OS)) {
+ errs() << "SectionData must be a collection of pairs of hex bytes";
+ return false;
+ }
+ }
+ for (unsigned I2 = 0, E2 = i->Relocations.size(); I2 != E2; ++I2) {
+ const COFF::relocation &R = i->Relocations[I2];
+ OS << binary_le(R.VirtualAddress)
+ << binary_le(R.SymbolTableIndex)
+ << binary_le(R.Type);
+ }
+ }
+
+ // Output symbol table.
+
+ for (std::vector<COFFYAML::Symbol>::const_iterator i = CP.Obj.Symbols.begin(),
+ e = CP.Obj.Symbols.end();
+ i != e; ++i) {
+ OS.write(i->Header.Name, COFF::NameSize);
+ OS << binary_le(i->Header.Value)
+ << binary_le(i->Header.SectionNumber)
+ << binary_le(i->Header.Type)
+ << binary_le(i->Header.StorageClass)
+ << binary_le(i->Header.NumberOfAuxSymbols);
+ StringRef Data = i->AuxiliaryData.getHex();
+ if (!Data.empty()) {
+ if (!writeHexData(Data, OS)) {
+ errs() << "AuxiliaryData must be a collection of pairs of hex bytes";
+ return false;
+ }
+ }
+ }
+
+ // Output string table.
+ OS.write(&CP.StringTable[0], CP.StringTable.size());
+ return true;
+}
+
+int yaml2coff(llvm::raw_ostream &Out, llvm::MemoryBuffer *Buf) {
+ yaml::Input YIn(Buf->getBuffer());
+ COFFYAML::Object Doc;
+ YIn >> Doc;
+ if (YIn.error()) {
+ errs() << "yaml2obj: Failed to parse YAML file!\n";
+ return 1;
+ }
+
+ COFFParser CP(Doc);
+ if (!CP.parse()) {
+ errs() << "yaml2obj: Failed to parse YAML file!\n";
+ return 1;
+ }
+
+ if (!layoutCOFF(CP)) {
+ errs() << "yaml2obj: Failed to layout COFF file!\n";
+ return 1;
+ }
+ if (!writeCOFF(CP, Out)) {
+ errs() << "yaml2obj: Failed to write COFF file!\n";
+ return 1;
+ }
+ return 0;
+}
//
//===----------------------------------------------------------------------===//
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/Object/COFFYAML.h"
-#include "llvm/Support/Casting.h"
+#include "yaml2obj.h"
+#include "llvm/ADT/OwningPtr.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Endian.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
-#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/system_error.h"
-#include <vector>
using namespace llvm;
clEnumValN(YOF_COFF, "coff", "COFF object file format"),
clEnumValEnd));
-/// This parses a yaml stream that represents a COFF object file.
-/// See docs/yaml2obj for the yaml scheema.
-struct COFFParser {
- COFFParser(COFFYAML::Object &Obj) : Obj(Obj) {
- // A COFF string table always starts with a 4 byte size field. Offsets into
- // it include this size, so allocate it now.
- StringTable.append(4, 0);
- }
-
- bool parseSections() {
- for (std::vector<COFFYAML::Section>::iterator i = Obj.Sections.begin(),
- e = Obj.Sections.end(); i != e; ++i) {
- COFFYAML::Section &Sec = *i;
-
- // If the name is less than 8 bytes, store it in place, otherwise
- // store it in the string table.
- StringRef Name = Sec.Name;
-
- if (Name.size() <= COFF::NameSize) {
- std::copy(Name.begin(), Name.end(), Sec.Header.Name);
- } else {
- // Add string to the string table and format the index for output.
- unsigned Index = getStringIndex(Name);
- std::string str = utostr(Index);
- if (str.size() > 7) {
- errs() << "String table got too large";
- return false;
- }
- Sec.Header.Name[0] = '/';
- std::copy(str.begin(), str.end(), Sec.Header.Name + 1);
- }
-
- Sec.Header.Characteristics |= (Log2_32(Sec.Alignment) + 1) << 20;
- }
- return true;
- }
-
- bool parseSymbols() {
- for (std::vector<COFFYAML::Symbol>::iterator i = Obj.Symbols.begin(),
- e = Obj.Symbols.end(); i != e; ++i) {
- COFFYAML::Symbol &Sym = *i;
-
- // If the name is less than 8 bytes, store it in place, otherwise
- // store it in the string table.
- StringRef Name = Sym.Name;
- if (Name.size() <= COFF::NameSize) {
- std::copy(Name.begin(), Name.end(), Sym.Header.Name);
- } else {
- // Add string to the string table and format the index for output.
- unsigned Index = getStringIndex(Name);
- *reinterpret_cast<support::aligned_ulittle32_t*>(
- Sym.Header.Name + 4) = Index;
- }
-
- Sym.Header.Type = Sym.SimpleType;
- Sym.Header.Type |= Sym.ComplexType << COFF::SCT_COMPLEX_TYPE_SHIFT;
- }
- return true;
- }
-
- bool parse() {
- if (!parseSections())
- return false;
- if (!parseSymbols())
- return false;
- return true;
- }
-
- unsigned getStringIndex(StringRef Str) {
- StringMap<unsigned>::iterator i = StringTableMap.find(Str);
- if (i == StringTableMap.end()) {
- unsigned Index = StringTable.size();
- StringTable.append(Str.begin(), Str.end());
- StringTable.push_back(0);
- StringTableMap[Str] = Index;
- return Index;
- }
- return i->second;
- }
-
- COFFYAML::Object &Obj;
-
- StringMap<unsigned> StringTableMap;
- std::string StringTable;
-};
-
-// Take a CP and assign addresses and sizes to everything. Returns false if the
-// layout is not valid to do.
-static bool layoutCOFF(COFFParser &CP) {
- uint32_t SectionTableStart = 0;
- uint32_t SectionTableSize = 0;
-
- // The section table starts immediately after the header, including the
- // optional header.
- SectionTableStart = sizeof(COFF::header) + CP.Obj.Header.SizeOfOptionalHeader;
- SectionTableSize = sizeof(COFF::section) * CP.Obj.Sections.size();
-
- uint32_t CurrentSectionDataOffset = SectionTableStart + SectionTableSize;
-
- // Assign each section data address consecutively.
- for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
- e = CP.Obj.Sections.end();
- i != e; ++i) {
- StringRef SecData = i->SectionData.getHex();
- if (!SecData.empty()) {
- i->Header.SizeOfRawData = SecData.size()/2;
- i->Header.PointerToRawData = CurrentSectionDataOffset;
- CurrentSectionDataOffset += i->Header.SizeOfRawData;
- if (!i->Relocations.empty()) {
- i->Header.PointerToRelocations = CurrentSectionDataOffset;
- i->Header.NumberOfRelocations = i->Relocations.size();
- CurrentSectionDataOffset += i->Header.NumberOfRelocations *
- COFF::RelocationSize;
- }
- // TODO: Handle alignment.
- } else {
- i->Header.SizeOfRawData = 0;
- i->Header.PointerToRawData = 0;
- }
- }
-
- uint32_t SymbolTableStart = CurrentSectionDataOffset;
-
- // Calculate number of symbols.
- uint32_t NumberOfSymbols = 0;
- for (std::vector<COFFYAML::Symbol>::iterator i = CP.Obj.Symbols.begin(),
- e = CP.Obj.Symbols.end();
- i != e; ++i) {
- unsigned AuxBytes = i->AuxiliaryData.getHex().size() / 2;
- if (AuxBytes % COFF::SymbolSize != 0) {
- errs() << "AuxiliaryData size not a multiple of symbol size!\n";
- return false;
- }
- i->Header.NumberOfAuxSymbols = AuxBytes / COFF::SymbolSize;
- NumberOfSymbols += 1 + i->Header.NumberOfAuxSymbols;
- }
-
- // Store all the allocated start addresses in the header.
- CP.Obj.Header.NumberOfSections = CP.Obj.Sections.size();
- CP.Obj.Header.NumberOfSymbols = NumberOfSymbols;
- CP.Obj.Header.PointerToSymbolTable = SymbolTableStart;
-
- *reinterpret_cast<support::ulittle32_t *>(&CP.StringTable[0])
- = CP.StringTable.size();
-
- return true;
-}
-
-template <typename value_type>
-struct binary_le_impl {
- value_type Value;
- binary_le_impl(value_type V) : Value(V) {}
-};
-
-template <typename value_type>
-raw_ostream &operator <<( raw_ostream &OS
- , const binary_le_impl<value_type> &BLE) {
- char Buffer[sizeof(BLE.Value)];
- support::endian::write<value_type, support::little, support::unaligned>(
- Buffer, BLE.Value);
- OS.write(Buffer, sizeof(BLE.Value));
- return OS;
-}
-
-template <typename value_type>
-binary_le_impl<value_type> binary_le(value_type V) {
- return binary_le_impl<value_type>(V);
-}
-
-static bool writeHexData(StringRef Data, raw_ostream &OS) {
- unsigned Size = Data.size();
- if (Size % 2)
- return false;
-
- for (unsigned I = 0; I != Size; I += 2) {
- uint8_t Byte;
- if (Data.substr(I, 2).getAsInteger(16, Byte))
- return false;
- OS.write(Byte);
- }
-
- return true;
-}
-
-bool writeCOFF(COFFParser &CP, raw_ostream &OS) {
- OS << binary_le(CP.Obj.Header.Machine)
- << binary_le(CP.Obj.Header.NumberOfSections)
- << binary_le(CP.Obj.Header.TimeDateStamp)
- << binary_le(CP.Obj.Header.PointerToSymbolTable)
- << binary_le(CP.Obj.Header.NumberOfSymbols)
- << binary_le(CP.Obj.Header.SizeOfOptionalHeader)
- << binary_le(CP.Obj.Header.Characteristics);
-
- // Output section table.
- for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
- e = CP.Obj.Sections.end();
- i != e; ++i) {
- OS.write(i->Header.Name, COFF::NameSize);
- OS << binary_le(i->Header.VirtualSize)
- << binary_le(i->Header.VirtualAddress)
- << binary_le(i->Header.SizeOfRawData)
- << binary_le(i->Header.PointerToRawData)
- << binary_le(i->Header.PointerToRelocations)
- << binary_le(i->Header.PointerToLineNumbers)
- << binary_le(i->Header.NumberOfRelocations)
- << binary_le(i->Header.NumberOfLineNumbers)
- << binary_le(i->Header.Characteristics);
- }
-
- // Output section data.
- for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(),
- e = CP.Obj.Sections.end();
- i != e; ++i) {
- StringRef SecData = i->SectionData.getHex();
- if (!SecData.empty()) {
- if (!writeHexData(SecData, OS)) {
- errs() << "SectionData must be a collection of pairs of hex bytes";
- return false;
- }
- }
- for (unsigned I2 = 0, E2 = i->Relocations.size(); I2 != E2; ++I2) {
- const COFF::relocation &R = i->Relocations[I2];
- OS << binary_le(R.VirtualAddress)
- << binary_le(R.SymbolTableIndex)
- << binary_le(R.Type);
- }
- }
-
- // Output symbol table.
-
- for (std::vector<COFFYAML::Symbol>::const_iterator i = CP.Obj.Symbols.begin(),
- e = CP.Obj.Symbols.end();
- i != e; ++i) {
- OS.write(i->Header.Name, COFF::NameSize);
- OS << binary_le(i->Header.Value)
- << binary_le(i->Header.SectionNumber)
- << binary_le(i->Header.Type)
- << binary_le(i->Header.StorageClass)
- << binary_le(i->Header.NumberOfAuxSymbols);
- StringRef Data = i->AuxiliaryData.getHex();
- if (!Data.empty()) {
- if (!writeHexData(Data, OS)) {
- errs() << "AuxiliaryData must be a collection of pairs of hex bytes";
- return false;
- }
- }
- }
-
- // Output string table.
- OS.write(&CP.StringTable[0], CP.StringTable.size());
- return true;
-}
-
-static int yaml2coff(llvm::raw_ostream &Out, llvm::MemoryBuffer *Buf) {
- yaml::Input YIn(Buf->getBuffer());
- COFFYAML::Object Doc;
- YIn >> Doc;
- if (YIn.error()) {
- errs() << "yaml2obj: Failed to parse YAML file!\n";
- return 1;
- }
-
- COFFParser CP(Doc);
- if (!CP.parse()) {
- errs() << "yaml2obj: Failed to parse YAML file!\n";
- return 1;
- }
-
- if (!layoutCOFF(CP)) {
- errs() << "yaml2obj: Failed to layout COFF file!\n";
- return 1;
- }
- if (!writeCOFF(CP, Out)) {
- errs() << "yaml2obj: Failed to write COFF file!\n";
- return 1;
- }
- return 0;
-}
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv);
--- /dev/null
+//===--- yaml2obj.h - -------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// \brief Common declarations for yaml2obj
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_TOOLS_YAML2OBJ_H
+#define LLVM_TOOLS_YAML2OBJ_H
+
+namespace llvm {
+ class raw_ostream;
+ class MemoryBuffer;
+}
+int yaml2coff(llvm::raw_ostream &Out, llvm::MemoryBuffer *Buf);
+
+#endif
projects / oota-llvm.git / commitdiff