[llvm] r204214 - Object: Provide a richer means of describing auxiliary symbols
David Majnemer
david.majnemer at gmail.com
Tue Mar 18 21:47:47 PDT 2014
Author: majnemer
Date: Tue Mar 18 23:47:47 2014
New Revision: 204214
URL: http://llvm.org/viewvc/llvm-project?rev=204214&view=rev
Log:
Object: Provide a richer means of describing auxiliary symbols
The current state of affairs has auxiliary symbols described as a big
bag of bytes. This is less than satisfying, it detracts from the YAML
file as being human readable.
Instead, allow for symbols to optionally contain their auxiliary data.
This allows us to have a much higher level way of describing things like
weak symbols, function definitions and section definitions.
This depends on D3105.
Differential Revision: http://llvm-reviews.chandlerc.com/D3092
Modified:
llvm/trunk/include/llvm/Object/COFF.h
llvm/trunk/include/llvm/Object/COFFYAML.h
llvm/trunk/include/llvm/Support/COFF.h
llvm/trunk/include/llvm/Support/YAMLTraits.h
llvm/trunk/lib/Object/COFFObjectFile.cpp
llvm/trunk/lib/Object/COFFYAML.cpp
llvm/trunk/test/Object/Inputs/COFF/i386.yaml
llvm/trunk/test/Object/Inputs/COFF/x86-64.yaml
llvm/trunk/test/Object/obj2yaml.test
llvm/trunk/tools/llvm-nm/llvm-nm.cpp
llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
llvm/trunk/tools/llvm-readobj/COFFDumper.cpp
llvm/trunk/tools/obj2yaml/coff2yaml.cpp
llvm/trunk/tools/yaml2obj/yaml2coff.cpp
Modified: llvm/trunk/include/llvm/Object/COFF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/COFF.h?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/COFF.h (original)
+++ llvm/trunk/include/llvm/Object/COFF.h Tue Mar 18 23:47:47 2014
@@ -202,6 +202,37 @@ struct coff_symbol {
uint8_t getBaseType() const { return Type & 0x0F; }
uint8_t getComplexType() const { return (Type & 0xF0) >> 4; }
+
+ bool isFunctionDefinition() const {
+ return StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ getBaseType() == COFF::IMAGE_SYM_TYPE_NULL &&
+ getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
+ COFF::isReservedSectionNumber(SectionNumber);
+ }
+
+ bool isWeakExternal() const {
+ return StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
+ (StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ SectionNumber == COFF::IMAGE_SYM_UNDEFINED && Value == 0);
+ }
+
+ bool isFileRecord() const {
+ return StorageClass == COFF::IMAGE_SYM_CLASS_FILE;
+ }
+
+ bool isSectionDefinition() const {
+ // C++/CLI creates external ABS symbols for non-const appdomain globals.
+ // These are also followed by an auxiliary section definition.
+ bool isAppdomainGlobal = StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ SectionNumber == COFF::IMAGE_SYM_ABSOLUTE;
+ bool isOrdinarySection =
+ StorageClass == COFF::IMAGE_SYM_CLASS_STATIC && Value == 0;
+ return isAppdomainGlobal || isOrdinarySection;
+ }
+
+ bool isCLRToken() const {
+ return StorageClass == COFF::IMAGE_SYM_CLASS_CLR_TOKEN;
+ }
};
struct coff_section {
Modified: llvm/trunk/include/llvm/Object/COFFYAML.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/COFFYAML.h?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/COFFYAML.h (original)
+++ llvm/trunk/include/llvm/Object/COFFYAML.h Tue Mar 18 23:47:47 2014
@@ -14,6 +14,7 @@
#ifndef LLVM_OBJECT_COFFYAML_H
#define LLVM_OBJECT_COFFYAML_H
+#include "llvm/ADT/Optional.h"
#include "llvm/Object/YAML.h"
#include "llvm/Support/COFF.h"
@@ -35,6 +36,10 @@ inline SectionCharacteristics operator|(
// The structure of the yaml files is not an exact 1:1 match to COFF. In order
// to use yaml::IO, we use these structures which are closer to the source.
namespace COFFYAML {
+ LLVM_YAML_STRONG_TYPEDEF(uint8_t, COMDATType)
+ LLVM_YAML_STRONG_TYPEDEF(uint32_t, WeakExternalCharacteristics)
+ LLVM_YAML_STRONG_TYPEDEF(uint8_t, AuxSymbolType)
+
struct Relocation {
uint32_t VirtualAddress;
uint16_t Type;
@@ -54,7 +59,12 @@ namespace COFFYAML {
COFF::symbol Header;
COFF::SymbolBaseType SimpleType;
COFF::SymbolComplexType ComplexType;
- object::yaml::BinaryRef AuxiliaryData;
+ Optional<COFF::AuxiliaryFunctionDefinition> FunctionDefinition;
+ Optional<COFF::AuxiliarybfAndefSymbol> bfAndefSymbol;
+ Optional<COFF::AuxiliaryWeakExternal> WeakExternal;
+ StringRef File;
+ Optional<COFF::AuxiliarySectionDefinition> SectionDefinition;
+ Optional<COFF::AuxiliaryCLRToken> CLRToken;
StringRef Name;
Symbol();
};
@@ -76,6 +86,21 @@ namespace llvm {
namespace yaml {
template <>
+struct ScalarEnumerationTraits<COFFYAML::WeakExternalCharacteristics> {
+ static void enumeration(IO &IO, COFFYAML::WeakExternalCharacteristics &Value);
+};
+
+template <>
+struct ScalarEnumerationTraits<COFFYAML::AuxSymbolType> {
+ static void enumeration(IO &IO, COFFYAML::AuxSymbolType &Value);
+};
+
+template <>
+struct ScalarEnumerationTraits<COFFYAML::COMDATType> {
+ static void enumeration(IO &IO, COFFYAML::COMDATType &Value);
+};
+
+template <>
struct ScalarEnumerationTraits<COFF::MachineTypes> {
static void enumeration(IO &IO, COFF::MachineTypes &Value);
};
@@ -120,6 +145,26 @@ struct MappingTraits<COFF::header> {
static void mapping(IO &IO, COFF::header &H);
};
+template <> struct MappingTraits<COFF::AuxiliaryFunctionDefinition> {
+ static void mapping(IO &IO, COFF::AuxiliaryFunctionDefinition &AFD);
+};
+
+template <> struct MappingTraits<COFF::AuxiliarybfAndefSymbol> {
+ static void mapping(IO &IO, COFF::AuxiliarybfAndefSymbol &AAS);
+};
+
+template <> struct MappingTraits<COFF::AuxiliaryWeakExternal> {
+ static void mapping(IO &IO, COFF::AuxiliaryWeakExternal &AWE);
+};
+
+template <> struct MappingTraits<COFF::AuxiliarySectionDefinition> {
+ static void mapping(IO &IO, COFF::AuxiliarySectionDefinition &ASD);
+};
+
+template <> struct MappingTraits<COFF::AuxiliaryCLRToken> {
+ static void mapping(IO &IO, COFF::AuxiliaryCLRToken &ACT);
+};
+
template <>
struct MappingTraits<COFFYAML::Symbol> {
static void mapping(IO &IO, COFFYAML::Symbol &S);
Modified: llvm/trunk/include/llvm/Support/COFF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/COFF.h?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/COFF.h (original)
+++ llvm/trunk/include/llvm/Support/COFF.h Tue Mar 18 23:47:47 2014
@@ -212,6 +212,10 @@ namespace COFF {
SCT_COMPLEX_TYPE_SHIFT = 4
};
+ enum AuxSymbolType {
+ IMAGE_AUX_SYMBOL_TYPE_TOKEN_DEF = 1
+ };
+
struct section {
char Name[NameSize];
uint32_t VirtualSize;
@@ -337,7 +341,7 @@ namespace COFF {
uint32_t TotalSize;
uint32_t PointerToLinenumber;
uint32_t PointerToNextFunction;
- uint8_t unused[2];
+ char unused[2];
};
struct AuxiliarybfAndefSymbol {
@@ -372,7 +376,14 @@ namespace COFF {
uint32_t CheckSum;
uint16_t Number;
uint8_t Selection;
- uint8_t unused[3];
+ char unused[3];
+ };
+
+ struct AuxiliaryCLRToken {
+ uint8_t AuxType;
+ uint8_t unused1;
+ uint32_t SymbolTableIndex;
+ char unused2[12];
};
union Auxiliary {
Modified: llvm/trunk/include/llvm/Support/YAMLTraits.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/YAMLTraits.h?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/YAMLTraits.h (original)
+++ llvm/trunk/include/llvm/Support/YAMLTraits.h Tue Mar 18 23:47:47 2014
@@ -13,6 +13,7 @@
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
@@ -421,6 +422,11 @@ public:
}
template <typename T>
+ void mapOptional(const char* Key, Optional<T> &Val) {
+ processKeyWithDefault(Key, Val, Optional<T>(), /*Required=*/false);
+ }
+
+ template <typename T>
typename std::enable_if<!has_SequenceTraits<T>::value,void>::type
mapOptional(const char* Key, T& Val) {
this->processKey(Key, Val, false);
@@ -433,6 +439,26 @@ public:
private:
template <typename T>
+ void processKeyWithDefault(const char *Key, Optional<T> &Val,
+ const Optional<T> &DefaultValue, bool Required) {
+ assert(DefaultValue.hasValue() == false &&
+ "Optional<T> shouldn't have a value!");
+ void *SaveInfo;
+ bool UseDefault;
+ const bool sameAsDefault = outputting() && !Val.hasValue();
+ if (!outputting() && !Val.hasValue())
+ Val = T();
+ if (this->preflightKey(Key, Required, sameAsDefault, UseDefault,
+ SaveInfo)) {
+ yamlize(*this, Val.getValue(), Required);
+ this->postflightKey(SaveInfo);
+ } else {
+ if (UseDefault)
+ Val = DefaultValue;
+ }
+ }
+
+ template <typename T>
void processKeyWithDefault(const char *Key, T &Val, const T& DefaultValue,
bool Required) {
void *SaveInfo;
Modified: llvm/trunk/lib/Object/COFFObjectFile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/COFFObjectFile.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/lib/Object/COFFObjectFile.cpp (original)
+++ llvm/trunk/lib/Object/COFFObjectFile.cpp Tue Mar 18 23:47:47 2014
@@ -174,7 +174,7 @@ error_code COFFObjectFile::getSymbolType
if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
Symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
Result = SymbolRef::ST_Unknown;
- } else if (Symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
+ } else if (Symb->isFunctionDefinition()) {
Result = SymbolRef::ST_Function;
} else {
uint32_t Characteristics = 0;
Modified: llvm/trunk/lib/Object/COFFYAML.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/COFFYAML.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/lib/Object/COFFYAML.cpp (original)
+++ llvm/trunk/lib/Object/COFFYAML.cpp Tue Mar 18 23:47:47 2014
@@ -23,6 +23,31 @@ Object::Object() { memset(&Header, 0, si
}
namespace yaml {
+void ScalarEnumerationTraits<COFFYAML::COMDATType>::enumeration(
+ IO &IO, COFFYAML::COMDATType &Value) {
+ IO.enumCase(Value, "0", 0);
+ ECase(IMAGE_COMDAT_SELECT_NODUPLICATES);
+ ECase(IMAGE_COMDAT_SELECT_ANY);
+ ECase(IMAGE_COMDAT_SELECT_SAME_SIZE);
+ ECase(IMAGE_COMDAT_SELECT_EXACT_MATCH);
+ ECase(IMAGE_COMDAT_SELECT_ASSOCIATIVE);
+ ECase(IMAGE_COMDAT_SELECT_LARGEST);
+ ECase(IMAGE_COMDAT_SELECT_NEWEST);
+}
+
+void
+ScalarEnumerationTraits<COFFYAML::WeakExternalCharacteristics>::enumeration(
+ IO &IO, COFFYAML::WeakExternalCharacteristics &Value) {
+ ECase(IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY);
+ ECase(IMAGE_WEAK_EXTERN_SEARCH_LIBRARY);
+ ECase(IMAGE_WEAK_EXTERN_SEARCH_ALIAS);
+}
+
+void ScalarEnumerationTraits<COFFYAML::AuxSymbolType>::enumeration(
+ IO &IO, COFFYAML::AuxSymbolType &Value) {
+ ECase(IMAGE_AUX_SYMBOL_TYPE_TOKEN_DEF);
+}
+
void ScalarEnumerationTraits<COFF::MachineTypes>::enumeration(
IO &IO, COFF::MachineTypes &Value) {
ECase(IMAGE_FILE_MACHINE_UNKNOWN);
@@ -187,6 +212,24 @@ void ScalarBitSetTraits<COFF::SectionCha
#undef BCase
namespace {
+struct NSectionSelectionType {
+ NSectionSelectionType(IO &)
+ : SelectionType(COFFYAML::COMDATType(0)) {}
+ NSectionSelectionType(IO &, uint8_t C)
+ : SelectionType(COFFYAML::COMDATType(C)) {}
+ uint8_t denormalize(IO &) { return SelectionType; }
+ COFFYAML::COMDATType SelectionType;
+};
+
+struct NWeakExternalCharacteristics {
+ NWeakExternalCharacteristics(IO &)
+ : Characteristics(COFFYAML::WeakExternalCharacteristics(0)) {}
+ NWeakExternalCharacteristics(IO &, uint32_t C)
+ : Characteristics(COFFYAML::WeakExternalCharacteristics(C)) {}
+ uint32_t denormalize(IO &) { return Characteristics; }
+ COFFYAML::WeakExternalCharacteristics Characteristics;
+};
+
struct NSectionCharacteristics {
NSectionCharacteristics(IO &)
: Characteristics(COFF::SectionCharacteristics(0)) {}
@@ -196,6 +239,15 @@ struct NSectionCharacteristics {
COFF::SectionCharacteristics Characteristics;
};
+struct NAuxTokenType {
+ NAuxTokenType(IO &)
+ : AuxType(COFFYAML::AuxSymbolType(0)) {}
+ NAuxTokenType(IO &, uint8_t C)
+ : AuxType(COFFYAML::AuxSymbolType(C)) {}
+ uint32_t denormalize(IO &) { return AuxType; }
+ COFFYAML::AuxSymbolType AuxType;
+};
+
struct NStorageClass {
NStorageClass(IO &) : StorageClass(COFF::SymbolStorageClass(0)) {}
NStorageClass(IO &, uint8_t S) : StorageClass(COFF::SymbolStorageClass(S)) {}
@@ -247,6 +299,48 @@ void MappingTraits<COFF::header>::mappin
IO.mapOptional("Characteristics", NC->Characteristics);
}
+void MappingTraits<COFF::AuxiliaryFunctionDefinition>::mapping(
+ IO &IO, COFF::AuxiliaryFunctionDefinition &AFD) {
+ IO.mapRequired("TagIndex", AFD.TagIndex);
+ IO.mapRequired("TotalSize", AFD.TotalSize);
+ IO.mapRequired("PointerToLinenumber", AFD.PointerToLinenumber);
+ IO.mapRequired("PointerToNextFunction", AFD.PointerToNextFunction);
+}
+
+void MappingTraits<COFF::AuxiliarybfAndefSymbol>::mapping(
+ IO &IO, COFF::AuxiliarybfAndefSymbol &AAS) {
+ IO.mapRequired("Linenumber", AAS.Linenumber);
+ IO.mapRequired("PointerToNextFunction", AAS.PointerToNextFunction);
+}
+
+void MappingTraits<COFF::AuxiliaryWeakExternal>::mapping(
+ IO &IO, COFF::AuxiliaryWeakExternal &AWE) {
+ MappingNormalization<NWeakExternalCharacteristics, uint32_t> NWEC(
+ IO, AWE.Characteristics);
+ IO.mapRequired("TagIndex", AWE.TagIndex);
+ IO.mapRequired("Characteristics", NWEC->Characteristics);
+}
+
+void MappingTraits<COFF::AuxiliarySectionDefinition>::mapping(
+ IO &IO, COFF::AuxiliarySectionDefinition &ASD) {
+ MappingNormalization<NSectionSelectionType, uint8_t> NSST(
+ IO, ASD.Selection);
+
+ IO.mapRequired("Length", ASD.Length);
+ IO.mapRequired("NumberOfRelocations", ASD.NumberOfRelocations);
+ IO.mapRequired("NumberOfLinenumbers", ASD.NumberOfLinenumbers);
+ IO.mapRequired("CheckSum", ASD.CheckSum);
+ IO.mapRequired("Number", ASD.Number);
+ IO.mapOptional("Selection", NSST->SelectionType, COFFYAML::COMDATType(0));
+}
+
+void MappingTraits<COFF::AuxiliaryCLRToken>::mapping(
+ IO &IO, COFF::AuxiliaryCLRToken &ACT) {
+ MappingNormalization<NAuxTokenType, uint8_t> NATT(IO, ACT.AuxType);
+ IO.mapRequired("AuxType", NATT->AuxType);
+ IO.mapRequired("SymbolTableIndex", ACT.SymbolTableIndex);
+}
+
void MappingTraits<COFFYAML::Symbol>::mapping(IO &IO, COFFYAML::Symbol &S) {
MappingNormalization<NStorageClass, uint8_t> NS(IO, S.Header.StorageClass);
@@ -256,9 +350,12 @@ void MappingTraits<COFFYAML::Symbol>::ma
IO.mapRequired("SimpleType", S.SimpleType);
IO.mapRequired("ComplexType", S.ComplexType);
IO.mapRequired("StorageClass", NS->StorageClass);
- IO.mapOptional("NumberOfAuxSymbols", S.Header.NumberOfAuxSymbols,
- (uint8_t) 0);
- IO.mapOptional("AuxiliaryData", S.AuxiliaryData, object::yaml::BinaryRef());
+ IO.mapOptional("FunctionDefinition", S.FunctionDefinition);
+ IO.mapOptional("bfAndefSymbol", S.bfAndefSymbol);
+ IO.mapOptional("WeakExternal", S.WeakExternal);
+ IO.mapOptional("File", S.File, StringRef());
+ IO.mapOptional("SectionDefinition", S.SectionDefinition);
+ IO.mapOptional("CLRToken", S.CLRToken);
}
void MappingTraits<COFFYAML::Section>::mapping(IO &IO, COFFYAML::Section &Sec) {
Modified: llvm/trunk/test/Object/Inputs/COFF/i386.yaml
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Object/Inputs/COFF/i386.yaml?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/test/Object/Inputs/COFF/i386.yaml (original)
+++ llvm/trunk/test/Object/Inputs/COFF/i386.yaml Tue Mar 18 23:47:47 2014
@@ -39,8 +39,12 @@ symbols:
SimpleType: IMAGE_SYM_TYPE_NULL # (0)
ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
- NumberOfAuxSymbols: 1
- AuxiliaryData: !hex "240000000300000000000000010000000000" # |$.................|
+ SectionDefinition:
+ Length: 36
+ NumberOfRelocations: 3
+ NumberOfLinenumbers: 0
+ CheckSum: 0
+ Number: 1
- !Symbol
Name: .data
@@ -49,8 +53,12 @@ symbols:
SimpleType: IMAGE_SYM_TYPE_NULL # (0)
ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
- NumberOfAuxSymbols: 1
- AuxiliaryData: !hex "0D0000000000000000000000020000000000" # |..................|
+ SectionDefinition:
+ Length: 13
+ NumberOfRelocations: 0
+ NumberOfLinenumbers: 0
+ CheckSum: 0
+ Number: 2
- !Symbol
Name: _main
Modified: llvm/trunk/test/Object/Inputs/COFF/x86-64.yaml
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Object/Inputs/COFF/x86-64.yaml?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/test/Object/Inputs/COFF/x86-64.yaml (original)
+++ llvm/trunk/test/Object/Inputs/COFF/x86-64.yaml Tue Mar 18 23:47:47 2014
@@ -38,8 +38,12 @@ symbols:
SimpleType: IMAGE_SYM_TYPE_NULL # (0)
ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
- NumberOfAuxSymbols: 1
- AuxiliaryData: !hex "260000000300000000000000010000000000" # |&.................|
+ SectionDefinition:
+ Length: 38
+ NumberOfRelocations: 3
+ NumberOfLinenumbers: 0
+ CheckSum: 0
+ Number: 1
- !Symbol
Name: .data
@@ -48,8 +52,12 @@ symbols:
SimpleType: IMAGE_SYM_TYPE_NULL # (0)
ComplexType: IMAGE_SYM_DTYPE_NULL # (0)
StorageClass: IMAGE_SYM_CLASS_STATIC # (3)
- NumberOfAuxSymbols: 1
- AuxiliaryData: !hex "0D0000000000000000000000020000000000" # |..................|
+ SectionDefinition:
+ Length: 13
+ NumberOfRelocations: 0
+ NumberOfLinenumbers: 0
+ CheckSum: 0
+ Number: 2
- !Symbol
Name: main
Modified: llvm/trunk/test/Object/obj2yaml.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Object/obj2yaml.test?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/test/Object/obj2yaml.test (original)
+++ llvm/trunk/test/Object/obj2yaml.test Tue Mar 18 23:47:47 2014
@@ -36,8 +36,12 @@ COFF-I386-NEXT: SectionNumber: 1
COFF-I386-NEXT: SimpleType: IMAGE_SYM_TYPE_NULL
COFF-I386-NEXT: ComplexType: IMAGE_SYM_DTYPE_NULL
COFF-I386-NEXT: StorageClass: IMAGE_SYM_CLASS_STATIC
-COFF-I386-NEXT: NumberOfAuxSymbols: 1
-COFF-I386-NEXT: AuxiliaryData: 240000000300000000000000010000000000
+COFF-I386-NEXT: SectionDefinition:
+COFF-I386-NEXT: Length: 36
+COFF-I386-NEXT: NumberOfRelocations: 3
+COFF-I386-NEXT: NumberOfLinenumbers: 0
+COFF-I386-NEXT: CheckSum: 0
+COFF-I386-NEXT: Number: 1
COFF-I386: - Name: .data
COFF-I386-NEXT: Value: 0
@@ -45,8 +49,12 @@ COFF-I386-NEXT: SectionNumber: 2
COFF-I386-NEXT: SimpleType: IMAGE_SYM_TYPE_NULL
COFF-I386-NEXT: ComplexType: IMAGE_SYM_DTYPE_NULL
COFF-I386-NEXT: StorageClass: IMAGE_SYM_CLASS_STATIC
-COFF-I386-NEXT: NumberOfAuxSymbols: 1
-COFF-I386-NEXT: AuxiliaryData: 0D0000000000000000000000020000000000
+COFF-I386-NEXT: SectionDefinition:
+COFF-I386-NEXT: Length: 13
+COFF-I386-NEXT: NumberOfRelocations: 0
+COFF-I386-NEXT: NumberOfLinenumbers: 0
+COFF-I386-NEXT: CheckSum: 0
+COFF-I386-NEXT: Number: 2
COFF-I386: - Name: _main
COFF-I386-NEXT: Value: 0
@@ -111,8 +119,12 @@ COFF-X86-64-NEXT: SectionNumber: 1
COFF-X86-64-NEXT: SimpleType: IMAGE_SYM_TYPE_NULL
COFF-X86-64-NEXT: ComplexType: IMAGE_SYM_DTYPE_NULL
COFF-X86-64-NEXT: StorageClass: IMAGE_SYM_CLASS_STATIC
-COFF-X86-64-NEXT: NumberOfAuxSymbols: 1
-COFF-X86-64-NEXT: AuxiliaryData: 260000000300000000000000010000000000
+COFF-X86-64-NEXT: SectionDefinition:
+COFF-X86-64-NEXT: Length: 38
+COFF-X86-64-NEXT: NumberOfRelocations: 3
+COFF-X86-64-NEXT: NumberOfLinenumbers: 0
+COFF-X86-64-NEXT: CheckSum: 0
+COFF-X86-64-NEXT: Number: 1
COFF-X86-64: - Name: .data
COFF-X86-64-NEXT: Value: 0
@@ -120,8 +132,12 @@ COFF-X86-64-NEXT: SectionNumber: 2
COFF-X86-64-NEXT: SimpleType: IMAGE_SYM_TYPE_NULL
COFF-X86-64-NEXT: ComplexType: IMAGE_SYM_DTYPE_NULL
COFF-X86-64-NEXT: StorageClass: IMAGE_SYM_CLASS_STATIC
-COFF-X86-64-NEXT: NumberOfAuxSymbols: 1
-COFF-X86-64-NEXT: AuxiliaryData: 0D0000000000000000000000020000000000
+COFF-X86-64-NEXT: SectionDefinition:
+COFF-X86-64-NEXT: Length: 13
+COFF-X86-64-NEXT: NumberOfRelocations: 0
+COFF-X86-64-NEXT: NumberOfLinenumbers: 0
+COFF-X86-64-NEXT: CheckSum: 0
+COFF-X86-64-NEXT: Number: 2
COFF-X86-64: - Name: main
COFF-X86-64-NEXT: Value: 0
Modified: llvm/trunk/tools/llvm-nm/llvm-nm.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-nm/llvm-nm.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-nm/llvm-nm.cpp (original)
+++ llvm/trunk/tools/llvm-nm/llvm-nm.cpp Tue Mar 18 23:47:47 2014
@@ -344,8 +344,7 @@ static char getSymbolNMTypeChar(COFFObje
return 'i';
// Check for section symbol.
- else if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC &&
- Symb->Value == 0)
+ else if (Symb->isSectionDefinition())
return 's';
}
Modified: llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp (original)
+++ llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp Tue Mar 18 23:47:47 2014
@@ -663,8 +663,7 @@ static void PrintCOFFSymbolTable(const C
for (int i = 0, e = header->NumberOfSymbols; i != e; ++i) {
if (aux_count--) {
// Figure out which type of aux this is.
- if (symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC
- && symbol->Value == 0) { // Section definition.
+ if (symbol->isSectionDefinition()) { // Section definition.
const coff_aux_section_definition *asd;
if (error(coff->getAuxSymbol<coff_aux_section_definition>(i, asd)))
return;
Modified: llvm/trunk/tools/llvm-readobj/COFFDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/COFFDumper.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/COFFDumper.cpp (original)
+++ llvm/trunk/tools/llvm-readobj/COFFDumper.cpp Tue Mar 18 23:47:47 2014
@@ -946,12 +946,7 @@ void COFFDumper::printSymbol(const Symbo
W.printNumber("AuxSymbolCount", Symbol->NumberOfAuxSymbols);
for (unsigned I = 0; I < Symbol->NumberOfAuxSymbols; ++I) {
- if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->getBaseType() == COFF::IMAGE_SYM_TYPE_NULL &&
- Symbol->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
- Symbol->SectionNumber != COFF::IMAGE_SYM_DEBUG &&
- Symbol->SectionNumber != COFF::IMAGE_SYM_ABSOLUTE &&
- Symbol->SectionNumber != COFF::IMAGE_SYM_UNDEFINED) {
+ if (Symbol->isFunctionDefinition()) {
const coff_aux_function_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
@@ -963,11 +958,7 @@ void COFFDumper::printSymbol(const Symbo
W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
W.printBinary("Unused", makeArrayRef(Aux->Unused));
- } else if (
- Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
- (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->SectionNumber == COFF::IMAGE_SYM_UNDEFINED &&
- Symbol->Value == 0)) {
+ } else if (Symbol->isWeakExternal()) {
const coff_aux_weak_external *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
@@ -987,7 +978,7 @@ void COFFDumper::printSymbol(const Symbo
makeArrayRef(WeakExternalCharacteristics));
W.printBinary("Unused", makeArrayRef(Aux->Unused));
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_FILE) {
+ } else if (Symbol->isFileRecord()) {
const coff_aux_file_record *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
@@ -995,11 +986,7 @@ void COFFDumper::printSymbol(const Symbo
DictScope AS(W, "AuxFileRecord");
W.printString("FileName", StringRef(Aux->FileName));
- // C++/CLI creates external ABS symbols for non-const appdomain globals.
- // These are also followed by an auxiliary section definition.
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC ||
- (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)) {
+ } else if (Symbol->isSectionDefinition()) {
const coff_aux_section_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
@@ -1026,7 +1013,7 @@ void COFFDumper::printSymbol(const Symbo
W.printNumber("AssocSection", AssocName, Aux->Number);
}
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_CLR_TOKEN) {
+ } else if (Symbol->isCLRToken()) {
const coff_aux_clr_token *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
Modified: llvm/trunk/tools/obj2yaml/coff2yaml.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/obj2yaml/coff2yaml.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/tools/obj2yaml/coff2yaml.cpp (original)
+++ llvm/trunk/tools/obj2yaml/coff2yaml.cpp Tue Mar 18 23:47:47 2014
@@ -78,6 +78,61 @@ void COFFDumper::dumpSections(unsigned N
}
}
+static void
+dumpFunctionDefinition(COFFYAML::Symbol *Sym,
+ const object::coff_aux_function_definition *ObjFD) {
+ COFF::AuxiliaryFunctionDefinition YAMLFD;
+ YAMLFD.TagIndex = ObjFD->TagIndex;
+ YAMLFD.TotalSize = ObjFD->TotalSize;
+ YAMLFD.PointerToLinenumber = ObjFD->PointerToLinenumber;
+ YAMLFD.PointerToNextFunction = ObjFD->PointerToNextFunction;
+
+ Sym->FunctionDefinition = YAMLFD;
+}
+
+static void
+dumpbfAndEfLineInfo(COFFYAML::Symbol *Sym,
+ const object::coff_aux_bf_and_ef_symbol *ObjBES) {
+ COFF::AuxiliarybfAndefSymbol YAMLAAS;
+ YAMLAAS.Linenumber = ObjBES->Linenumber;
+ YAMLAAS.PointerToNextFunction = ObjBES->PointerToNextFunction;
+
+ Sym->bfAndefSymbol = YAMLAAS;
+}
+
+static void dumpWeakExternal(COFFYAML::Symbol *Sym,
+ const object::coff_aux_weak_external *ObjWE) {
+ COFF::AuxiliaryWeakExternal YAMLWE;
+ YAMLWE.TagIndex = ObjWE->TagIndex;
+ YAMLWE.Characteristics = ObjWE->Characteristics;
+
+ Sym->WeakExternal = YAMLWE;
+}
+
+static void
+dumpSectionDefinition(COFFYAML::Symbol *Sym,
+ const object::coff_aux_section_definition *ObjSD) {
+ COFF::AuxiliarySectionDefinition YAMLASD;
+ YAMLASD.Length = ObjSD->Length;
+ YAMLASD.NumberOfRelocations = ObjSD->NumberOfRelocations;
+ YAMLASD.NumberOfLinenumbers = ObjSD->NumberOfLinenumbers;
+ YAMLASD.CheckSum = ObjSD->CheckSum;
+ YAMLASD.Number = ObjSD->Number;
+ YAMLASD.Selection = ObjSD->Selection;
+
+ Sym->SectionDefinition = YAMLASD;
+}
+
+static void
+dumpCLRTokenDefinition(COFFYAML::Symbol *Sym,
+ const object::coff_aux_clr_token *ObjCLRToken) {
+ COFF::AuxiliaryCLRToken YAMLCLRToken;
+ YAMLCLRToken.AuxType = ObjCLRToken->AuxType;
+ YAMLCLRToken.SymbolTableIndex = ObjCLRToken->SymbolTableIndex;
+
+ Sym->CLRToken = YAMLCLRToken;
+}
+
void COFFDumper::dumpSymbols(unsigned NumSymbols) {
std::vector<COFFYAML::Symbol> &Symbols = YAMLObj.Symbols;
for (const auto &S : Obj.symbols()) {
@@ -90,7 +145,62 @@ void COFFDumper::dumpSymbols(unsigned Nu
Sym.Header.Value = Symbol->Value;
Sym.Header.SectionNumber = Symbol->SectionNumber;
Sym.Header.NumberOfAuxSymbols = Symbol->NumberOfAuxSymbols;
- Sym.AuxiliaryData = object::yaml::BinaryRef(Obj.getSymbolAuxData(Symbol));
+
+ if (Symbol->NumberOfAuxSymbols > 0) {
+ ArrayRef<uint8_t> AuxData = Obj.getSymbolAuxData(Symbol);
+ if (Symbol->isFunctionDefinition()) {
+ // This symbol represents a function definition.
+ assert(Symbol->NumberOfAuxSymbols == 1 &&
+ "Expected a single aux symbol to describe this function!");
+
+ const object::coff_aux_function_definition *ObjFD =
+ reinterpret_cast<const object::coff_aux_function_definition *>(
+ AuxData.data());
+ dumpFunctionDefinition(&Sym, ObjFD);
+ } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_FUNCTION) {
+ // This symbol describes function line number information.
+ assert(Symbol->NumberOfAuxSymbols == 1 &&
+ "Exepected a single aux symbol to describe this section!");
+
+ const object::coff_aux_bf_and_ef_symbol *ObjBES =
+ reinterpret_cast<const object::coff_aux_bf_and_ef_symbol *>(
+ AuxData.data());
+ dumpbfAndEfLineInfo(&Sym, ObjBES);
+ } else if (Symbol->isWeakExternal()) {
+ // This symbol represents a weak external definition.
+ assert(Symbol->NumberOfAuxSymbols == 1 &&
+ "Exepected a single aux symbol to describe this section!");
+
+ const object::coff_aux_weak_external *ObjWE =
+ reinterpret_cast<const object::coff_aux_weak_external *>(
+ AuxData.data());
+ dumpWeakExternal(&Sym, ObjWE);
+ } else if (Symbol->isFileRecord()) {
+ // This symbol represents a file record.
+ Sym.File = StringRef(reinterpret_cast<const char *>(AuxData.data()),
+ Symbol->NumberOfAuxSymbols * COFF::SymbolSize);
+ } else if (Symbol->isSectionDefinition()) {
+ // This symbol represents a section definition.
+ assert(Symbol->NumberOfAuxSymbols == 1 &&
+ "Expected a single aux symbol to describe this section!");
+
+ const object::coff_aux_section_definition *ObjSD =
+ reinterpret_cast<const object::coff_aux_section_definition *>(
+ AuxData.data());
+ dumpSectionDefinition(&Sym, ObjSD);
+ } else if (Symbol->isCLRToken()) {
+ // This symbol represents a CLR token definition.
+ assert(Symbol->NumberOfAuxSymbols == 1 &&
+ "Expected a single aux symbol to describe this CLR Token");
+
+ const object::coff_aux_clr_token *ObjCLRToken =
+ reinterpret_cast<const object::coff_aux_clr_token *>(
+ AuxData.data());
+ dumpCLRTokenDefinition(&Sym, ObjCLRToken);
+ } else {
+ llvm_unreachable("Unhandled auxiliary symbol!");
+ }
+ }
Symbols.push_back(Sym);
}
}
Modified: llvm/trunk/tools/yaml2obj/yaml2coff.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/yaml2obj/yaml2coff.cpp?rev=204214&r1=204213&r2=204214&view=diff
==============================================================================
--- llvm/trunk/tools/yaml2obj/yaml2coff.cpp (original)
+++ llvm/trunk/tools/yaml2obj/yaml2coff.cpp Tue Mar 18 23:47:47 2014
@@ -14,6 +14,7 @@
#include "yaml2obj.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringSwitch.h"
@@ -153,13 +154,22 @@ static bool layoutCOFF(COFFParser &CP) {
for (std::vector<COFFYAML::Symbol>::iterator i = CP.Obj.Symbols.begin(),
e = CP.Obj.Symbols.end();
i != e; ++i) {
- unsigned AuxBytes = i->AuxiliaryData.binary_size();
- 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;
+ uint32_t NumberOfAuxSymbols = 0;
+ if (i->FunctionDefinition)
+ NumberOfAuxSymbols += 1;
+ if (i->bfAndefSymbol)
+ NumberOfAuxSymbols += 1;
+ if (i->WeakExternal)
+ NumberOfAuxSymbols += 1;
+ if (!i->File.empty())
+ NumberOfAuxSymbols +=
+ (i->File.size() + COFF::SymbolSize - 1) / COFF::SymbolSize;
+ if (i->SectionDefinition)
+ NumberOfAuxSymbols += 1;
+ if (i->CLRToken)
+ NumberOfAuxSymbols += 1;
+ i->Header.NumberOfAuxSymbols = NumberOfAuxSymbols;
+ NumberOfSymbols += 1 + NumberOfAuxSymbols;
}
// Store all the allocated start addresses in the header.
@@ -194,6 +204,24 @@ binary_le_impl<value_type> binary_le(val
return binary_le_impl<value_type>(V);
}
+template <size_t NumBytes>
+struct zeros_impl {
+ zeros_impl() {}
+};
+
+template <size_t NumBytes>
+raw_ostream &operator<<(raw_ostream &OS, const zeros_impl<NumBytes> &) {
+ char Buffer[NumBytes];
+ memset(Buffer, 0, sizeof(Buffer));
+ OS.write(Buffer, sizeof(Buffer));
+ return OS;
+}
+
+template <typename T>
+zeros_impl<sizeof(T)> zeros(const T &) {
+ return zeros_impl<sizeof(T)>();
+}
+
bool writeCOFF(COFFParser &CP, raw_ostream &OS) {
OS << binary_le(CP.Obj.Header.Machine)
<< binary_le(CP.Obj.Header.NumberOfSections)
@@ -253,7 +281,45 @@ bool writeCOFF(COFFParser &CP, raw_ostre
<< binary_le(i->Header.Type)
<< binary_le(i->Header.StorageClass)
<< binary_le(i->Header.NumberOfAuxSymbols);
- i->AuxiliaryData.writeAsBinary(OS);
+
+ if (i->FunctionDefinition)
+ OS << binary_le(i->FunctionDefinition->TagIndex)
+ << binary_le(i->FunctionDefinition->TotalSize)
+ << binary_le(i->FunctionDefinition->PointerToLinenumber)
+ << binary_le(i->FunctionDefinition->PointerToNextFunction)
+ << zeros(i->FunctionDefinition->unused);
+ if (i->bfAndefSymbol)
+ OS << zeros(i->bfAndefSymbol->unused1)
+ << binary_le(i->bfAndefSymbol->Linenumber)
+ << zeros(i->bfAndefSymbol->unused2)
+ << binary_le(i->bfAndefSymbol->PointerToNextFunction)
+ << zeros(i->bfAndefSymbol->unused3);
+ if (i->WeakExternal)
+ OS << binary_le(i->WeakExternal->TagIndex)
+ << binary_le(i->WeakExternal->Characteristics)
+ << zeros(i->WeakExternal->unused);
+ if (!i->File.empty()) {
+ uint32_t NumberOfAuxRecords =
+ (i->File.size() + COFF::SymbolSize - 1) / COFF::SymbolSize;
+ uint32_t NumberOfAuxBytes = NumberOfAuxRecords * COFF::SymbolSize;
+ uint32_t NumZeros = NumberOfAuxBytes - i->File.size();
+ OS.write(i->File.data(), i->File.size());
+ for (uint32_t Padding = 0; Padding < NumZeros; ++Padding)
+ OS.write(0);
+ }
+ if (i->SectionDefinition)
+ OS << binary_le(i->SectionDefinition->Length)
+ << binary_le(i->SectionDefinition->NumberOfRelocations)
+ << binary_le(i->SectionDefinition->NumberOfLinenumbers)
+ << binary_le(i->SectionDefinition->CheckSum)
+ << binary_le(i->SectionDefinition->Number)
+ << binary_le(i->SectionDefinition->Selection)
+ << zeros(i->SectionDefinition->unused);
+ if (i->CLRToken)
+ OS << binary_le(i->CLRToken->AuxType)
+ << zeros(i->CLRToken->unused1)
+ << binary_le(i->CLRToken->SymbolTableIndex)
+ << zeros(i->CLRToken->unused2);
}
// Output string table.
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