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[WebAssembly] Add first claass symbol table to wasm objects

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This is combination of two patches by Nicholas Wilson:
  1. https://reviews.llvm.org/D41954
  2. https://reviews.llvm.org/D42495

Along with a few local modifications:
- One change I made was to add the UNDEFINED bit to the binary format
  to avoid the extra byte used when writing data symbols.  Although this
  bit is redundant for other symbols types (i.e. undefined can be
  implied if a function or global is a wasm import)
- I prefer to be explicit and consistent and not have derived flags.
- Some field renaming.
- Some reverting of unrelated minor changes.
- No test output differences.

Differential Revision: https://reviews.llvm.org/D43147

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325860 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sam Clegg 2018-02-23 05:08:34 +00:00
parent 7217c2e7b4
commit d5784797c6
43 changed files with 1033 additions and 898 deletions
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51
include/llvm/BinaryFormat/Wasm.h
View File

@ -119,16 +119,37 @@ struct WasmElemSegment {
std::vector<uint32_t> Functions;
};
// Represents the location of a Wasm data symbol within a WasmDataSegment, as
// the index of the segment, and the offset and size within the segment.
struct WasmDataReference {
uint32_t Segment;
uint32_t Offset;
uint32_t Size;
};
struct WasmRelocation {
uint32_t Type; // The type of the relocation.
uint32_t Index; // Index into function or global index space.
uint32_t Index; // Index into either symbol or type index space.
uint64_t Offset; // Offset from the start of the section.
int64_t Addend; // A value to add to the symbol.
};
struct WasmInitFunc {
uint32_t Priority;
uint32_t FunctionIndex;
uint32_t Symbol;
};
struct WasmSymbolInfo {
StringRef Name;
uint32_t Kind;
uint32_t Flags;
union {
// For function or global symbols, the index in function of global index
// space.
uint32_t ElementIndex;
// For a data symbols, the address of the data relative to segment.
WasmDataReference DataRef;
};
};
struct WasmFunctionName {
@ -139,6 +160,7 @@ struct WasmFunctionName {
struct WasmLinkingData {
uint32_t DataSize;
std::vector<WasmInitFunc> InitFunctions;
std::vector<WasmSymbolInfo> SymbolTable;
};
enum : unsigned {
@ -205,11 +227,11 @@ enum : unsigned {
// Kind codes used in the custom "linking" section
enum : unsigned {
WASM_SYMBOL_INFO = 0x2,
WASM_DATA_SIZE = 0x3,
WASM_SEGMENT_INFO = 0x5,
WASM_INIT_FUNCS = 0x6,
WASM_COMDAT_INFO = 0x7,
WASM_SYMBOL_TABLE = 0x8,
};
// Kind codes used in the custom "linking" section in the WASM_COMDAT_INFO
@ -218,14 +240,22 @@ enum : unsigned {
WASM_COMDAT_FUNCTION = 0x1,
};
// Kind codes used in the custom "linking" section in the WASM_SYMBOL_TABLE
enum WasmSymbolType : unsigned {
WASM_SYMBOL_TYPE_FUNCTION = 0x0,
WASM_SYMBOL_TYPE_DATA = 0x1,
WASM_SYMBOL_TYPE_GLOBAL = 0x2,
};
const unsigned WASM_SYMBOL_BINDING_MASK = 0x3;
const unsigned WASM_SYMBOL_VISIBILITY_MASK = 0x4;
const unsigned WASM_SYMBOL_VISIBILITY_MASK = 0xc;
const unsigned WASM_SYMBOL_BINDING_GLOBAL = 0x0;
const unsigned WASM_SYMBOL_BINDING_WEAK = 0x1;
const unsigned WASM_SYMBOL_BINDING_LOCAL = 0x2;
const unsigned WASM_SYMBOL_VISIBILITY_DEFAULT = 0x0;
const unsigned WASM_SYMBOL_VISIBILITY_HIDDEN = 0x4;
const unsigned WASM_SYMBOL_UNDEFINED = 0x10;
#define WASM_RELOC(name, value) name = value,
@ -235,19 +265,6 @@ enum : unsigned {
#undef WASM_RELOC
struct Global {
ValType Type;
bool Mutable;
// The initial value for this global is either the value of an imported
// global, in which case InitialModule and InitialName specify the global
// import, or a value, in which case InitialModule is empty and InitialValue
// holds the value.
StringRef InitialModule;
StringRef InitialName;
uint64_t InitialValue;
};
} // end namespace wasm
} // end namespace llvm

12
include/llvm/MC/MCSectionWasm.h
View File

@ -37,17 +37,17 @@ class MCSectionWasm final : public MCSection {
// The offset of the MC function/data section in the wasm code/data section.
// For data relocations the offset is relative to start of the data payload
// itself and does not include the size of the section header.
uint64_t SectionOffset;
uint64_t SectionOffset = 0;
// For data sections, this is the offset of the corresponding wasm data
// For data sections, this is the index of of the corresponding wasm data
// segment
uint64_t MemoryOffset;
uint32_t SegmentIndex = 0;
friend class MCContext;
MCSectionWasm(StringRef Section, SectionKind K, const MCSymbolWasm *group,
unsigned UniqueID, MCSymbol *Begin)
: MCSection(SV_Wasm, K, Begin), SectionName(Section), UniqueID(UniqueID),
Group(group), SectionOffset(0) {}
Group(group) {}
void setSectionName(StringRef Name) { SectionName = Name; }
@ -77,8 +77,8 @@ public:
uint64_t getSectionOffset() const { return SectionOffset; }
void setSectionOffset(uint64_t Offset) { SectionOffset = Offset; }
uint32_t getMemoryOffset() const { return MemoryOffset; }
void setMemoryOffset(uint32_t Offset) { MemoryOffset = Offset; }
uint32_t getSegmentIndex() const { return SegmentIndex; }
void setSegmentIndex(uint32_t Index) { SegmentIndex = Index; }
static bool classof(const MCSection *S) { return S->getVariant() == SV_Wasm; }
};

21
include/llvm/MC/MCSymbolWasm.h
View File

@ -15,15 +15,17 @@
namespace llvm {
class MCSymbolWasm : public MCSymbol {
bool IsFunction = false;
wasm::WasmSymbolType Type = wasm::WASM_SYMBOL_TYPE_DATA;
bool IsWeak = false;
bool IsHidden = false;
bool IsComdat = false;
std::string ModuleName;
SmallVector<wasm::ValType, 1> Returns;
SmallVector<wasm::ValType, 4> Params;
wasm::WasmGlobalType GlobalType;
bool ParamsSet = false;
bool ReturnsSet = false;
bool GlobalTypeSet = false;
/// An expression describing how to calculate the size of a symbol. If a
/// symbol has no size this field will be NULL.
@ -40,8 +42,11 @@ public:
const MCExpr *getSize() const { return SymbolSize; }
void setSize(const MCExpr *SS) { SymbolSize = SS; }
bool isFunction() const { return IsFunction; }
void setIsFunction(bool isFunc) { IsFunction = isFunc; }
bool isFunction() const { return Type == wasm::WASM_SYMBOL_TYPE_FUNCTION; }
bool isData() const { return Type == wasm::WASM_SYMBOL_TYPE_DATA; }
bool isGlobal() const { return Type == wasm::WASM_SYMBOL_TYPE_GLOBAL; }
wasm::WasmSymbolType getType() const { return Type; }
void setType(wasm::WasmSymbolType type) { Type = type; }
bool isWeak() const { return IsWeak; }
void setWeak(bool isWeak) { IsWeak = isWeak; }
@ -74,6 +79,16 @@ public:
ParamsSet = true;
Params = std::move(Pars);
}
const wasm::WasmGlobalType &getGlobalType() const {
assert(GlobalTypeSet);
return GlobalType;
}
void setGlobalType(wasm::WasmGlobalType GT) {
GlobalTypeSet = true;
GlobalType = GT;
}
};
} // end namespace llvm

79
include/llvm/Object/Wasm.h
View File

@ -34,48 +34,30 @@ namespace object {
class WasmSymbol {
public:
enum class SymbolType {
FUNCTION_IMPORT,
FUNCTION_EXPORT,
GLOBAL_IMPORT,
GLOBAL_EXPORT,
};
WasmSymbol(const wasm::WasmSymbolInfo &Info,
const wasm::WasmSignature *FunctionType,
const wasm::WasmGlobalType *GlobalType)
: Info(Info), FunctionType(FunctionType), GlobalType(GlobalType) {}
WasmSymbol(StringRef Name, SymbolType Type, uint32_t ElementIndex,
uint32_t FunctionType = 0)
: Name(Name), Type(Type), ElementIndex(ElementIndex),
FunctionType(FunctionType) {}
StringRef Name;
SymbolType Type;
uint32_t Flags = 0;
// Index into either the function or global index space.
uint32_t ElementIndex;
// For function, the type index
uint32_t FunctionType;
// Symbols can be both exported and imported (in the case of the weakly
// defined symbol). In this the import index is stored as AltIndex.
uint32_t AltIndex = 0;
bool HasAltIndex = false;
void setAltIndex(uint32_t Index) {
HasAltIndex = true;
AltIndex = Index;
}
const wasm::WasmSymbolInfo &Info;
const wasm::WasmSignature *FunctionType;
const wasm::WasmGlobalType *GlobalType;
bool isTypeFunction() const {
return Type == SymbolType::FUNCTION_IMPORT ||
Type == SymbolType::FUNCTION_EXPORT;
return Info.Kind == wasm::WASM_SYMBOL_TYPE_FUNCTION;
}
bool isTypeData() const { return Info.Kind == wasm::WASM_SYMBOL_TYPE_DATA; }
bool isTypeGlobal() const {
return Type == SymbolType::GLOBAL_IMPORT ||
Type == SymbolType::GLOBAL_EXPORT;
return Info.Kind == wasm::WASM_SYMBOL_TYPE_GLOBAL;
}
bool isDefined() const { return !isUndefined(); }
bool isUndefined() const {
return (Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) != 0;
}
bool isBindingWeak() const {
return getBinding() == wasm::WASM_SYMBOL_BINDING_WEAK;
@ -90,7 +72,7 @@ public:
}
unsigned getBinding() const {
return Flags & wasm::WASM_SYMBOL_BINDING_MASK;
return Info.Flags & wasm::WASM_SYMBOL_BINDING_MASK;
}
bool isHidden() const {
@ -98,12 +80,19 @@ public:
}
unsigned getVisibility() const {
return Flags & wasm::WASM_SYMBOL_VISIBILITY_MASK;
return Info.Flags & wasm::WASM_SYMBOL_VISIBILITY_MASK;
}
void print(raw_ostream &Out) const {
Out << "Name=" << Name << ", Type=" << static_cast<int>(Type)
<< ", Flags=" << Flags << " ElemIndex=" << ElementIndex;
Out << "Name=" << Info.Name << ", Kind=" << Info.Kind
<< ", Flags=" << Info.Flags;
if (!isTypeData()) {
Out << ", ElemIndex=" << Info.ElementIndex;
} else if (isDefined()) {
Out << ", Segment=" << Info.DataRef.Segment;
Out << ", Offset=" << Info.DataRef.Offset;
Out << ", Size=" << Info.DataRef.Size;
}
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
@ -154,6 +143,8 @@ public:
ArrayRef<StringRef> comdats() const { return Comdats; }
ArrayRef<wasm::WasmFunctionName> debugNames() const { return DebugNames; }
uint32_t startFunction() const { return StartFunction; }
uint32_t getNumImportedGlobals() const { return NumImportedGlobals; }
uint32_t getNumImportedFunctions() const { return NumImportedFunctions; }
void moveSymbolNext(DataRefImpl &Symb) const override;
@ -210,7 +201,11 @@ public:
private:
bool isValidFunctionIndex(uint32_t Index) const;
bool isDefinedFunctionIndex(uint32_t Index) const;
wasm::WasmFunction& getDefinedFunction(uint32_t Index);
bool isValidGlobalIndex(uint32_t Index) const;
bool isDefinedGlobalIndex(uint32_t Index) const;
bool isValidFunctionSymbolIndex(uint32_t Index) const;
wasm::WasmFunction &getDefinedFunction(uint32_t Index);
wasm::WasmGlobal &getDefinedGlobal(uint32_t Index);
const WasmSection &getWasmSection(DataRefImpl Ref) const;
const wasm::WasmRelocation &getWasmRelocation(DataRefImpl Ref) const;
@ -239,12 +234,11 @@ private:
// Custom section types
Error parseNameSection(const uint8_t *Ptr, const uint8_t *End);
Error parseLinkingSection(const uint8_t *Ptr, const uint8_t *End);
Error parseLinkingSectionSymtab(const uint8_t *&Ptr, const uint8_t *End);
Error parseLinkingSectionComdat(const uint8_t *&Ptr, const uint8_t *End);
Error parseRelocSection(StringRef Name, const uint8_t *Ptr,
const uint8_t *End);
void populateSymbolTable();
wasm::WasmObjectHeader Header;
std::vector<WasmSection> Sections;
std::vector<wasm::WasmSignature> Signatures;
@ -267,8 +261,7 @@ private:
uint32_t NumImportedFunctions = 0;
uint32_t CodeSection = 0;
uint32_t DataSection = 0;
StringMap<uint32_t> SymbolMap;
uint32_t GlobalSection = 0;
};
} // end namespace object

15
include/llvm/ObjectYAML/WasmYAML.h
View File

@ -35,6 +35,7 @@ LLVM_YAML_STRONG_TYPEDEF(uint32_t, ExportKind)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, Opcode)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, RelocType)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, SymbolFlags)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, SymbolKind)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, SegmentFlags)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, LimitFlags)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ComdatKind)
@ -130,13 +131,19 @@ struct Signature {
};
struct SymbolInfo {
uint32_t Index;
StringRef Name;
SymbolKind Kind;
SymbolFlags Flags;
union {
uint32_t ElementIndex;
wasm::WasmDataReference DataRef;
};
};
struct InitFunction {
uint32_t Priority;
uint32_t FunctionIndex;
uint32_t Symbol;
};
struct ComdatEntry {
@ -189,7 +196,7 @@ struct LinkingSection : CustomSection {
}
uint32_t DataSize;
std::vector<SymbolInfo> SymbolInfos;
std::vector<SymbolInfo> SymbolTable;
std::vector<SegmentInfo> SegmentInfos;
std::vector<InitFunction> InitFunctions;
std::vector<Comdat> Comdats;
@ -368,6 +375,10 @@ template <> struct ScalarBitSetTraits<WasmYAML::SymbolFlags> {
static void bitset(IO &IO, WasmYAML::SymbolFlags &Value);
};
template <> struct ScalarEnumerationTraits<WasmYAML::SymbolKind> {
static void enumeration(IO &IO, WasmYAML::SymbolKind &Kind);
};
template <> struct ScalarBitSetTraits<WasmYAML::SegmentFlags> {
static void bitset(IO &IO, WasmYAML::SegmentFlags &Value);
};

4
lib/MC/MCWasmStreamer.cpp
View File

@ -113,11 +113,11 @@ bool MCWasmStreamer::EmitSymbolAttribute(MCSymbol *S, MCSymbolAttr Attribute) {
break;
case MCSA_ELF_TypeFunction:
Symbol->setIsFunction(true);
Symbol->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
break;
case MCSA_ELF_TypeObject:
Symbol->setIsFunction(false);
Symbol->setType(wasm::WASM_SYMBOL_TYPE_DATA);
break;
default:

290
lib/MC/WasmObjectWriter.cpp
View File

@ -190,13 +190,18 @@ class WasmObjectWriter : public MCObjectWriter {
// Maps function symbols to the table element index space. Used
// for TABLE_INDEX relocation types (i.e. address taken functions).
DenseMap<const MCSymbolWasm *, uint32_t> TableIndices;
// Maps function/global symbols to the function/global index space.
// Maps function/global symbols to the (shared) Symbol index space.
DenseMap<const MCSymbolWasm *, uint32_t> SymbolIndices;
// Maps function/global symbols to the function/global Wasm index space.
DenseMap<const MCSymbolWasm *, uint32_t> WasmIndices;
// Maps data symbols to the Wasm segment and offset/size with the segment.
DenseMap<const MCSymbolWasm *, wasm::WasmDataReference> DataLocations;
DenseMap<WasmFunctionType, int32_t, WasmFunctionTypeDenseMapInfo>
FunctionTypeIndices;
SmallVector<WasmFunctionType, 4> FunctionTypes;
SmallVector<WasmGlobal, 4> Globals;
SmallVector<WasmDataSegment, 4> DataSegments;
unsigned NumFunctionImports = 0;
unsigned NumGlobalImports = 0;
@ -224,10 +229,13 @@ private:
DataRelocations.clear();
TypeIndices.clear();
SymbolIndices.clear();
WasmIndices.clear();
TableIndices.clear();
DataLocations.clear();
FunctionTypeIndices.clear();
FunctionTypes.clear();
Globals.clear();
DataSegments.clear();
MCObjectWriter::reset();
NumFunctionImports = 0;
NumGlobalImports = 0;
@ -262,14 +270,13 @@ private:
void writeElemSection(ArrayRef<uint32_t> TableElems);
void writeCodeSection(const MCAssembler &Asm, const MCAsmLayout &Layout,
ArrayRef<WasmFunction> Functions);
void writeDataSection(ArrayRef<WasmDataSegment> Segments);
void writeDataSection();
void writeCodeRelocSection();
void writeDataRelocSection();
void writeLinkingMetaDataSection(
ArrayRef<WasmDataSegment> Segments, uint32_t DataSize,
ArrayRef<std::pair<StringRef, uint32_t>> SymbolFlags,
uint32_t DataSize, ArrayRef<wasm::WasmSymbolInfo> SymbolInfos,
ArrayRef<std::pair<uint16_t, uint32_t>> InitFuncs,
const std::map<StringRef, std::vector<WasmComdatEntry>>& Comdats);
const std::map<StringRef, std::vector<WasmComdatEntry>> &Comdats);
uint32_t getProvisionalValue(const WasmRelocationEntry &RelEntry);
void applyRelocations(ArrayRef<WasmRelocationEntry> Relocations,
@ -494,11 +501,16 @@ WasmObjectWriter::getProvisionalValue(const WasmRelocationEntry &RelEntry) {
assert(Sym->isFunction());
return TableIndices[Sym];
}
case wasm::R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
case wasm::R_WEBASSEMBLY_TYPE_INDEX_LEB:
case wasm::R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
// Provisional value is function/type/global index itself
// Provisional value is same as the index
return getRelocationIndexValue(RelEntry);
case wasm::R_WEBASSEMBLY_FUNCTION_INDEX_LEB:
case wasm::R_WEBASSEMBLY_GLOBAL_INDEX_LEB:
// Provisional value is function/global Wasm index
if (!WasmIndices.count(RelEntry.Symbol))
report_fatal_error("symbol not found in wasm index space: " +
RelEntry.Symbol->getName());
return WasmIndices[RelEntry.Symbol];
case wasm::R_WEBASSEMBLY_MEMORY_ADDR_LEB:
case wasm::R_WEBASSEMBLY_MEMORY_ADDR_I32:
case wasm::R_WEBASSEMBLY_MEMORY_ADDR_SLEB: {
@ -507,16 +519,10 @@ WasmObjectWriter::getProvisionalValue(const WasmRelocationEntry &RelEntry) {
// For undefined symbols, use zero
if (!Sym->isDefined())
return 0;
if (!SymbolIndices.count(Sym))
report_fatal_error("symbol not found in function/global index space: " +
Sym->getName());
uint32_t GlobalIndex = SymbolIndices[Sym];
const WasmGlobal& Global = Globals[GlobalIndex - NumGlobalImports];
uint64_t Address = Global.InitialValue + RelEntry.Addend;
const wasm::WasmDataReference &Ref = DataLocations[Sym];
const WasmDataSegment &Segment = DataSegments[Ref.Segment];
// Ignore overflow. LLVM allows address arithmetic to silently wrap.
return Address;
return Segment.Offset + Ref.Offset + RelEntry.Addend;
}
default:
llvm_unreachable("invalid relocation type");
@ -529,7 +535,6 @@ static void addData(SmallVectorImpl<char> &DataBytes,
DataBytes.resize(alignTo(DataBytes.size(), DataSection.getAlignment()));
size_t LastFragmentSize = 0;
for (const MCFragment &Frag : DataSection) {
if (Frag.hasInstructions())
report_fatal_error("only data supported in data sections");
@ -554,16 +559,9 @@ static void addData(SmallVectorImpl<char> &DataBytes,
const SmallVectorImpl<char> &Contents = DataFrag.getContents();
DataBytes.insert(DataBytes.end(), Contents.begin(), Contents.end());
LastFragmentSize = Contents.size();
}
}
// Don't allow empty segments, or segments that end with zero-sized
// fragment, otherwise the linker cannot map symbols to a unique
// data segment. This can be triggered by zero-sized structs
// See: test/MC/WebAssembly/bss.ll
if (LastFragmentSize == 0)
DataBytes.resize(DataBytes.size() + 1);
DEBUG(dbgs() << "addData -> " << DataBytes.size() << "\n");
}
@ -577,7 +575,7 @@ WasmObjectWriter::getRelocationIndexValue(const WasmRelocationEntry &RelEntry) {
}
if (!SymbolIndices.count(RelEntry.Symbol))
report_fatal_error("symbol not found in function/global index space: " +
report_fatal_error("symbol not found in symbol index space: " +
RelEntry.Symbol->getName());
return SymbolIndices[RelEntry.Symbol];
}
@ -802,16 +800,16 @@ void WasmObjectWriter::writeCodeSection(const MCAssembler &Asm,
endSection(Section);
}
void WasmObjectWriter::writeDataSection(ArrayRef<WasmDataSegment> Segments) {
if (Segments.empty())
void WasmObjectWriter::writeDataSection() {
if (DataSegments.empty())
return;
SectionBookkeeping Section;
startSection(Section, wasm::WASM_SEC_DATA);
encodeULEB128(Segments.size(), getStream()); // count
encodeULEB128(DataSegments.size(), getStream()); // count
for (const WasmDataSegment & Segment : Segments) {
for (const WasmDataSegment &Segment : DataSegments) {
encodeULEB128(0, getStream()); // memory index
write8(wasm::WASM_OPCODE_I32_CONST);
encodeSLEB128(Segment.Offset, getStream()); // offset
@ -864,20 +862,37 @@ void WasmObjectWriter::writeDataRelocSection() {
}
void WasmObjectWriter::writeLinkingMetaDataSection(
ArrayRef<WasmDataSegment> Segments, uint32_t DataSize,
ArrayRef<std::pair<StringRef, uint32_t>> SymbolFlags,
uint32_t DataSize, ArrayRef<wasm::WasmSymbolInfo> SymbolInfos,
ArrayRef<std::pair<uint16_t, uint32_t>> InitFuncs,
const std::map<StringRef, std::vector<WasmComdatEntry>>& Comdats) {
const std::map<StringRef, std::vector<WasmComdatEntry>> &Comdats) {
SectionBookkeeping Section;
startSection(Section, wasm::WASM_SEC_CUSTOM, "linking");
SectionBookkeeping SubSection;
if (SymbolFlags.size() != 0) {
startSection(SubSection, wasm::WASM_SYMBOL_INFO);
encodeULEB128(SymbolFlags.size(), getStream());
for (auto Pair: SymbolFlags) {
writeString(Pair.first);
encodeULEB128(Pair.second, getStream());
if (SymbolInfos.size() != 0) {
startSection(SubSection, wasm::WASM_SYMBOL_TABLE);
encodeULEB128(SymbolInfos.size(), getStream());
for (const wasm::WasmSymbolInfo &Sym : SymbolInfos) {
encodeULEB128(Sym.Kind, getStream());
encodeULEB128(Sym.Flags, getStream());
switch (Sym.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
encodeULEB128(Sym.ElementIndex, getStream());
if ((Sym.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0)
writeString(Sym.Name);
break;
case wasm::WASM_SYMBOL_TYPE_DATA:
writeString(Sym.Name);
if ((Sym.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0) {
encodeULEB128(Sym.DataRef.Segment, getStream());
encodeULEB128(Sym.DataRef.Offset, getStream());
encodeULEB128(Sym.DataRef.Size, getStream());
}
break;
default:
llvm_unreachable("unexpected kind");
}
}
endSection(SubSection);
}
@ -888,10 +903,10 @@ void WasmObjectWriter::writeLinkingMetaDataSection(
endSection(SubSection);
}
if (Segments.size()) {
if (DataSegments.size()) {
startSection(SubSection, wasm::WASM_SEGMENT_INFO);
encodeULEB128(Segments.size(), getStream());
for (const WasmDataSegment &Segment : Segments) {
encodeULEB128(DataSegments.size(), getStream());
for (const WasmDataSegment &Segment : DataSegments) {
writeString(Segment.Name);
encodeULEB128(Segment.Alignment, getStream());
encodeULEB128(Segment.Flags, getStream());
@ -956,19 +971,41 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
const MCAsmLayout &Layout) {
DEBUG(dbgs() << "WasmObjectWriter::writeObject\n");
MCContext &Ctx = Asm.getContext();
int32_t PtrType = is64Bit() ? wasm::WASM_TYPE_I64 : wasm::WASM_TYPE_I32;
// Collect information from the available symbols.
SmallVector<WasmFunction, 4> Functions;
SmallVector<uint32_t, 4> TableElems;
SmallVector<wasm::WasmImport, 4> Imports;
SmallVector<wasm::WasmExport, 4> Exports;
SmallVector<std::pair<StringRef, uint32_t>, 4> SymbolFlags;
SmallVector<wasm::WasmSymbolInfo, 4> SymbolInfos;
SmallVector<std::pair<uint16_t, uint32_t>, 2> InitFuncs;
std::map<StringRef, std::vector<WasmComdatEntry>> Comdats;
SmallVector<WasmDataSegment, 4> DataSegments;
unsigned NumSymbols = 0;
uint32_t DataSize = 0;
auto AddSymbol = [&](const MCSymbolWasm &WS) {
uint32_t Flags = 0;
if (WS.isWeak())
Flags |= wasm::WASM_SYMBOL_BINDING_WEAK;
if (WS.isHidden())
Flags |= wasm::WASM_SYMBOL_VISIBILITY_HIDDEN;
if (!WS.isExternal() && WS.isDefined())
Flags |= wasm::WASM_SYMBOL_BINDING_LOCAL;
if (WS.isUndefined())
Flags |= wasm::WASM_SYMBOL_UNDEFINED;
wasm::WasmSymbolInfo Info;
Info.Name = WS.getName();
Info.Kind = WS.getType();
Info.Flags = Flags;
if (!WS.isData())
Info.ElementIndex = WasmIndices[&WS];
else if (WS.isDefined())
Info.DataRef = DataLocations[&WS];
SymbolInfos.emplace_back(Info);
SymbolIndices[&WS] = NumSymbols++;
};
// For now, always emit the memory import, since loads and stores are not
// valid without it. In the future, we could perhaps be more clever and omit
// it if there are no loads or stores.
@ -1005,31 +1042,32 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
continue;
// If the symbol is not defined in this translation unit, import it.
if ((!WS.isDefined() && !WS.isComdat()) ||
WS.isVariable()) {
wasm::WasmImport Import;
Import.Module = WS.getModuleName();
Import.Field = WS.getName();
if (!WS.isDefined() && !WS.isComdat()) {
if (WS.isFunction()) {
wasm::WasmImport Import;
Import.Module = WS.getModuleName();
Import.Field = WS.getName();
Import.Kind = wasm::WASM_EXTERNAL_FUNCTION;
Import.SigIndex = getFunctionType(WS);
SymbolIndices[&WS] = NumFunctionImports;
++NumFunctionImports;
} else {
Imports.push_back(Import);
WasmIndices[&WS] = NumFunctionImports++;
} else if (WS.isGlobal()) {
wasm::WasmImport Import;
Import.Module = WS.getModuleName();
Import.Field = WS.getName();
Import.Kind = wasm::WASM_EXTERNAL_GLOBAL;
Import.Global.Type = PtrType;
// If this global is the stack pointer, make it mutable.
if (WS.getName() == "__stack_pointer")
Import.Global.Mutable = true;
else
Import.Global.Mutable = false;
SymbolIndices[&WS] = NumGlobalImports;
++NumGlobalImports;
Import.Global = WS.getGlobalType();
Imports.push_back(Import);
WasmIndices[&WS] = NumGlobalImports++;
}
Imports.push_back(Import);
// TODO(ncw) We shouldn't be adding the symbol to the symbol table here!
// Instead it should be done by removing the "if (WS.isDefined())" block
// in the big loop below (line ~1284). However - that would reorder all
// the symbols and thus require all the tests to be updated. I think it's
// better to make that change therefore in a future commit, to isolate
// each test update from the change that caused it.
AddSymbol(WS);
}
}
@ -1053,7 +1091,7 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
Segment.Alignment = Section.getAlignment();
Segment.Flags = 0;
DataSize += Segment.Data.size();
Section.setMemoryOffset(Segment.Offset);
Section.setSegmentIndex(SegmentIndex);
if (const MCSymbolWasm *C = Section.getGroup()) {
Comdats[C->getName()].emplace_back(
@ -1078,18 +1116,13 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
<< " isHidden=" << WS.isHidden()
<< " isVariable=" << WS.isVariable() << "\n");
if (WS.isWeak() || WS.isHidden()) {
uint32_t Flags = (WS.isWeak() ? wasm::WASM_SYMBOL_BINDING_WEAK : 0) |
(WS.isHidden() ? wasm::WASM_SYMBOL_VISIBILITY_HIDDEN : 0);
SymbolFlags.emplace_back(WS.getName(), Flags);
}
if (WS.isVariable())
continue;
unsigned Index;
if (WS.isComdat() && !WS.isDefined())
continue;
if (WS.isFunction()) {
unsigned Index;
if (WS.isDefined()) {
if (WS.getOffset() != 0)
report_fatal_error(
@ -1099,27 +1132,33 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
report_fatal_error(
"function symbols must have a size set with .size");
// A definition. Take the next available index.
// A definition. Write out the function body.
Index = NumFunctionImports + Functions.size();
// Prepare the function.
WasmFunction Func;
Func.Type = getFunctionType(WS);
Func.Sym = &WS;
SymbolIndices[&WS] = Index;
WasmIndices[&WS] = Index;
Functions.push_back(Func);
auto &Section = static_cast<MCSectionWasm &>(WS.getSection());
if (const MCSymbolWasm *C = Section.getGroup()) {
Comdats[C->getName()].emplace_back(
WasmComdatEntry{wasm::WASM_COMDAT_FUNCTION, Index});
}
} else {
// An import; the index was assigned above.
Index = SymbolIndices.find(&WS)->second;
Index = WasmIndices.find(&WS)->second;
}
DEBUG(dbgs() << " -> function index: " << Index << "\n");
} else {
} else if (WS.isData()) {
if (WS.isTemporary() && !WS.getSize())
continue;
if (!WS.isDefined())
if (!WS.isDefined()) {
DEBUG(dbgs() << " -> segment index: -1");
continue;
}
if (!WS.getSize())
report_fatal_error("data symbols must have a size set with .size: " +
@ -1129,43 +1168,32 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
if (!WS.getSize()->evaluateAsAbsolute(Size, Layout))
report_fatal_error(".size expression must be evaluatable");
// For each global, prepare a corresponding wasm global holding its
// address. For externals these will also be named exports.
Index = NumGlobalImports + Globals.size();
auto &DataSection = static_cast<MCSectionWasm &>(WS.getSection());
assert(DataSection.isWasmData());
WasmGlobal Global;
Global.Type.Type = PtrType;
Global.Type.Mutable = false;
Global.InitialValue = DataSection.getMemoryOffset() + Layout.getSymbolOffset(WS);
SymbolIndices[&WS] = Index;
DEBUG(dbgs() << " -> global index: " << Index << "\n");
Globals.push_back(Global);
}
// If the symbol is visible outside this translation unit, export it.
if (WS.isDefined()) {
wasm::WasmExport Export;
Export.Name = WS.getName();
Export.Index = Index;
if (WS.isFunction())
Export.Kind = wasm::WASM_EXTERNAL_FUNCTION;
else
Export.Kind = wasm::WASM_EXTERNAL_GLOBAL;
DEBUG(dbgs() << " -> export " << Exports.size() << "\n");
Exports.push_back(Export);
if (!WS.isExternal())
SymbolFlags.emplace_back(WS.getName(), wasm::WASM_SYMBOL_BINDING_LOCAL);
if (WS.isFunction()) {
auto &Section = static_cast<MCSectionWasm &>(WS.getSection());
if (const MCSymbolWasm *C = Section.getGroup())
Comdats[C->getName()].emplace_back(
WasmComdatEntry{wasm::WASM_COMDAT_FUNCTION, Index});
// For each data symbol, export it in the symtab as a reference to the
// corresponding Wasm data segment.
wasm::WasmDataReference Ref = wasm::WasmDataReference{
DataSection.getSegmentIndex(),
static_cast<uint32_t>(Layout.getSymbolOffset(WS)),
static_cast<uint32_t>(Size)};
DataLocations[&WS] = Ref;
DEBUG(dbgs() << " -> segment index: " << Ref.Segment);
} else {
// A "true" Wasm global (currently just __stack_pointer)
unsigned WasmIndex;
if (WS.isDefined()) {
report_fatal_error("don't yet support defined globals");
} else {
// An import; the index was assigned above
WasmIndex = WasmIndices.find(&WS)->second;
}
DEBUG(dbgs() << " -> global index: " << WasmIndex << "\n");
}
if (WS.isDefined())
AddSymbol(WS);
}
// Handle weak aliases. We need to process these in a separate pass because
@ -1181,22 +1209,23 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
const auto &WS = static_cast<const MCSymbolWasm &>(S);
const MCSymbolWasm *ResolvedSym = ResolveSymbol(WS);
DEBUG(dbgs() << WS.getName() << ": weak alias of '" << *ResolvedSym << "'\n");
assert(SymbolIndices.count(ResolvedSym) > 0);
uint32_t Index = SymbolIndices.find(ResolvedSym)->second;
DEBUG(dbgs() << " -> index:" << Index << "\n");
wasm::WasmExport Export;
Export.Name = WS.getName();
Export.Index = Index;
if (WS.isFunction())
Export.Kind = wasm::WASM_EXTERNAL_FUNCTION;
else
Export.Kind = wasm::WASM_EXTERNAL_GLOBAL;
DEBUG(dbgs() << " -> export " << Exports.size() << "\n");
Exports.push_back(Export);
if (WS.isFunction()) {
assert(WasmIndices.count(ResolvedSym) > 0);
uint32_t WasmIndex = WasmIndices.find(ResolvedSym)->second;
WasmIndices[&WS] = WasmIndex;
DEBUG(dbgs() << " -> index:" << WasmIndex << "\n");
} else if (WS.isData()) {
assert(DataLocations.count(ResolvedSym) > 0);
const wasm::WasmDataReference &Ref =
DataLocations.find(ResolvedSym)->second;
DataLocations[&WS] = Ref;
DEBUG(dbgs() << " -> index:" << Ref.Segment << "\n");
} else {
report_fatal_error("don't yet support global aliases");
}
if (!WS.isExternal())
SymbolFlags.emplace_back(WS.getName(), wasm::WASM_SYMBOL_BINDING_LOCAL);
AddSymbol(WS);
}
{
@ -1209,12 +1238,12 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
return;
assert(Rel.Symbol->isFunction());
const MCSymbolWasm &WS = *ResolveSymbol(*Rel.Symbol);
uint32_t SymbolIndex = SymbolIndices.find(&WS)->second;
uint32_t FunctionIndex = WasmIndices.find(&WS)->second;
uint32_t TableIndex = TableElems.size() + kInitialTableOffset;
if (TableIndices.try_emplace(&WS, TableIndex).second) {
DEBUG(dbgs() << " -> adding " << WS.getName()
<< " to table: " << TableIndex << "\n");
TableElems.push_back(SymbolIndex);
TableElems.push_back(FunctionIndex);
registerFunctionType(WS);
}
};
@ -1287,11 +1316,10 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
writeExportSection(Exports);
writeElemSection(TableElems);
writeCodeSection(Asm, Layout, Functions);
writeDataSection(DataSegments);
writeDataSection();
writeCodeRelocSection();
writeDataRelocSection();
writeLinkingMetaDataSection(DataSegments, DataSize, SymbolFlags,
InitFuncs, Comdats);
writeLinkingMetaDataSection(DataSize, SymbolInfos, InitFuncs, Comdats);
// TODO: Translate the .comment section to the output.
// TODO: Translate debug sections to the output.

304
lib/Object/WasmObjectFile.cpp
View File

@ -317,69 +317,6 @@ Error WasmObjectFile::parseNameSection(const uint8_t *Ptr, const uint8_t *End) {
return Error::success();
}
void WasmObjectFile::populateSymbolTable() {
// Add imports to symbol table
size_t GlobalIndex = 0;
size_t FunctionIndex = 0;
for (const wasm::WasmImport& Import : Imports) {
switch (Import.Kind) {
case wasm::WASM_EXTERNAL_GLOBAL:
assert(Import.Global.Type == wasm::WASM_TYPE_I32);
SymbolMap.try_emplace(Import.Field, Symbols.size());
Symbols.emplace_back(Import.Field, WasmSymbol::SymbolType::GLOBAL_IMPORT,
GlobalIndex++);
DEBUG(dbgs() << "Adding import: " << Symbols.back()
<< " sym index:" << Symbols.size() << "\n");
break;
case wasm::WASM_EXTERNAL_FUNCTION:
SymbolMap.try_emplace(Import.Field, Symbols.size());
Symbols.emplace_back(Import.Field,
WasmSymbol::SymbolType::FUNCTION_IMPORT,
FunctionIndex++, Import.SigIndex);
DEBUG(dbgs() << "Adding import: " << Symbols.back()
<< " sym index:" << Symbols.size() << "\n");
break;
default:
break;
}
}
// Add exports to symbol table
for (const wasm::WasmExport& Export : Exports) {
if (Export.Kind == wasm::WASM_EXTERNAL_FUNCTION ||
Export.Kind == wasm::WASM_EXTERNAL_GLOBAL) {
WasmSymbol::SymbolType ExportType =
Export.Kind == wasm::WASM_EXTERNAL_FUNCTION
? WasmSymbol::SymbolType::FUNCTION_EXPORT
: WasmSymbol::SymbolType::GLOBAL_EXPORT;
auto Pair = SymbolMap.try_emplace(Export.Name, Symbols.size());
if (Pair.second) {
Symbols.emplace_back(Export.Name, ExportType, Export.Index);
DEBUG(dbgs() << "Adding export: " << Symbols.back()
<< " sym index:" << Symbols.size() << "\n");
} else {
uint32_t SymIndex = Pair.first->second;
const WasmSymbol &OldSym = Symbols[SymIndex];
WasmSymbol NewSym(Export.Name, ExportType, Export.Index);
NewSym.setAltIndex(OldSym.ElementIndex);
Symbols[SymIndex] = NewSym;
DEBUG(dbgs() << "Replacing existing symbol: " << NewSym
<< " sym index:" << SymIndex << "\n");
}
}
if (Export.Kind == wasm::WASM_EXTERNAL_FUNCTION &&
isDefinedFunctionIndex(Export.Index)) {
auto &Function = getDefinedFunction(Export.Index);
if (Function.Name.empty()) {
// Use the export's name to set a name for the Function, but only if one
// hasn't already been set.
Function.Name = Export.Name;
}
}
}
}
Error WasmObjectFile::parseLinkingSection(const uint8_t *Ptr,
const uint8_t *End) {
HasLinkingSection = true;
@ -388,37 +325,15 @@ Error WasmObjectFile::parseLinkingSection(const uint8_t *Ptr,
"Linking data must come after code section", object_error::parse_failed);
}
// Only populate the symbol table with imports and exports if the object
// has a linking section (i.e. its a relocatable object file). Otherwise
// the global might not represent symbols at all.
populateSymbolTable();
while (Ptr < End) {
uint8_t Type = readVarint7(Ptr);
uint32_t Size = readVaruint32(Ptr);
const uint8_t *SubSectionEnd = Ptr + Size;
switch (Type) {
case wasm::WASM_SYMBOL_INFO: {
uint32_t Count = readVaruint32(Ptr);
while (Count--) {
StringRef Symbol = readString(Ptr);
uint32_t Flags = readVaruint32(Ptr);
auto iter = SymbolMap.find(Symbol);
if (iter == SymbolMap.end()) {
return make_error<GenericBinaryError>(
"Invalid symbol name in linking section: " + Symbol,
object_error::parse_failed);
}
uint32_t SymIndex = iter->second;
assert(SymIndex < Symbols.size());
Symbols[SymIndex].Flags = Flags;
DEBUG(dbgs() << "Set symbol flags index:"
<< SymIndex << " name:"
<< Symbols[SymIndex].Name << " expected:"
<< Symbol << " flags: " << Flags << "\n");
}
case wasm::WASM_SYMBOL_TABLE:
if (Error Err = parseLinkingSectionSymtab(Ptr, SubSectionEnd))
return Err;
break;
}
case wasm::WASM_DATA_SIZE:
LinkingData.DataSize = readVaruint32(Ptr);
break;
@ -440,10 +355,10 @@ Error WasmObjectFile::parseLinkingSection(const uint8_t *Ptr,
for (uint32_t i = 0; i < Count; i++) {
wasm::WasmInitFunc Init;
Init.Priority = readVaruint32(Ptr);
Init.FunctionIndex = readVaruint32(Ptr);
if (!isValidFunctionIndex(Init.FunctionIndex))
return make_error<GenericBinaryError>("Invalid function index: " +
Twine(Init.FunctionIndex),
Init.Symbol = readVaruint32(Ptr);
if (!isValidFunctionSymbolIndex(Init.Symbol))
return make_error<GenericBinaryError>("Invalid function symbol: " +
Twine(Init.Symbol),
object_error::parse_failed);
LinkingData.InitFunctions.emplace_back(Init);
}
@ -467,6 +382,110 @@ Error WasmObjectFile::parseLinkingSection(const uint8_t *Ptr,
return Error::success();
}
Error WasmObjectFile::parseLinkingSectionSymtab(const uint8_t *&Ptr,
const uint8_t *End) {
uint32_t Count = readVaruint32(Ptr);
LinkingData.SymbolTable.reserve(Count);
Symbols.reserve(Count);
StringSet<> SymbolNames;
std::vector<wasm::WasmImport *> ImportedGlobals;
std::vector<wasm::WasmImport *> ImportedFunctions;
ImportedGlobals.reserve(Imports.size());
ImportedFunctions.reserve(Imports.size());
for (auto &I : Imports) {
if (I.Kind == wasm::WASM_EXTERNAL_FUNCTION)
ImportedFunctions.emplace_back(&I);
else if (I.Kind == wasm::WASM_EXTERNAL_GLOBAL)
ImportedGlobals.emplace_back(&I);
}
while (Count--) {
wasm::WasmSymbolInfo Info;
const wasm::WasmSignature *FunctionType = nullptr;
const wasm::WasmGlobalType *GlobalType = nullptr;
Info.Kind = readUint8(Ptr);
Info.Flags = readVaruint32(Ptr);
bool IsDefined = (Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0;
switch (Info.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
Info.ElementIndex = readVaruint32(Ptr);
if (!isValidFunctionIndex(Info.ElementIndex) ||
IsDefined != isDefinedFunctionIndex(Info.ElementIndex))
return make_error<GenericBinaryError>("invalid function symbol index",
object_error::parse_failed);
if (IsDefined) {
Info.Name = readString(Ptr);
unsigned FuncIndex = Info.ElementIndex - NumImportedFunctions;
FunctionType = &Signatures[FunctionTypes[FuncIndex]];
auto &Function = Functions[FuncIndex];
if (Function.Name.empty()) {
// Use the symbol's name to set a name for the Function, but only if
// one hasn't already been set.
Function.Name = Info.Name;
}
} else {
wasm::WasmImport &Import = *ImportedFunctions[Info.ElementIndex];
FunctionType = &Signatures[Import.SigIndex];
Info.Name = Import.Field;
}
break;
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
Info.ElementIndex = readVaruint32(Ptr);
if (!isValidGlobalIndex(Info.ElementIndex) ||
IsDefined != isDefinedGlobalIndex(Info.ElementIndex))
return make_error<GenericBinaryError>("invalid global symbol index",
object_error::parse_failed);
if (IsDefined) {
Info.Name = readString(Ptr);
unsigned GlobalIndex = Info.ElementIndex - NumImportedGlobals;
GlobalType = &Globals[GlobalIndex].Type;
} else {
wasm::WasmImport &Import = *ImportedGlobals[Info.ElementIndex];
Info.Name = Import.Field;
GlobalType = &Import.Global;
}
break;
case wasm::WASM_SYMBOL_TYPE_DATA:
Info.Name = readString(Ptr);
if (IsDefined) {
uint32_t Index = readVaruint32(Ptr);
if (Index >= DataSegments.size())
return make_error<GenericBinaryError>("invalid data symbol index",
object_error::parse_failed);
uint32_t Offset = readVaruint32(Ptr);
uint32_t Size = readVaruint32(Ptr);
if (Offset + Size > DataSegments[Index].Data.Content.size())
return make_error<GenericBinaryError>("invalid data symbol index",
object_error::parse_failed);
Info.DataRef = wasm::WasmDataReference{Index, Offset, Size};
}
break;
default:
return make_error<GenericBinaryError>("Invalid symbol type",
object_error::parse_failed);
}
if ((Info.Flags & wasm::WASM_SYMBOL_BINDING_MASK) !=
wasm::WASM_SYMBOL_BINDING_LOCAL &&
!SymbolNames.insert(Info.Name).second)
return make_error<GenericBinaryError>("Duplicate symbol name " +
Twine(Info.Name),
object_error::parse_failed);
LinkingData.SymbolTable.emplace_back(Info);
Symbols.emplace_back(LinkingData.SymbolTable.back(), FunctionType,
GlobalType);
DEBUG(dbgs() << "Adding symbol: " << Symbols.back() << "\n");
}
return Error::success();
}
Error WasmObjectFile::parseLinkingSectionComdat(const uint8_t *&Ptr,
const uint8_t *End)
{
@ -706,6 +725,7 @@ Error WasmObjectFile::parseMemorySection(const uint8_t *Ptr, const uint8_t *End)
}
Error WasmObjectFile::parseGlobalSection(const uint8_t *Ptr, const uint8_t *End) {
GlobalSection = Sections.size();
uint32_t Count = readVaruint32(Ptr);
Globals.reserve(Count);
while (Count--) {
@ -737,12 +757,11 @@ Error WasmObjectFile::parseExportSection(const uint8_t *Ptr, const uint8_t *End)
return make_error<GenericBinaryError>("Invalid function export",
object_error::parse_failed);
break;
case wasm::WASM_EXTERNAL_GLOBAL: {
if (Ex.Index >= Globals.size() + NumImportedGlobals)
case wasm::WASM_EXTERNAL_GLOBAL:
if (!isValidGlobalIndex(Ex.Index))
return make_error<GenericBinaryError>("Invalid global export",
object_error::parse_failed);
break;
}
case wasm::WASM_EXTERNAL_MEMORY:
case wasm::WASM_EXTERNAL_TABLE:
break;
@ -759,18 +778,35 @@ Error WasmObjectFile::parseExportSection(const uint8_t *Ptr, const uint8_t *End)
}
bool WasmObjectFile::isValidFunctionIndex(uint32_t Index) const {
return Index < FunctionTypes.size() + NumImportedFunctions;
return Index < NumImportedFunctions + FunctionTypes.size();
}
bool WasmObjectFile::isDefinedFunctionIndex(uint32_t Index) const {
return Index >= NumImportedFunctions && isValidFunctionIndex(Index);
}
wasm::WasmFunction& WasmObjectFile::getDefinedFunction(uint32_t Index) {
bool WasmObjectFile::isValidGlobalIndex(uint32_t Index) const {
return Index < NumImportedGlobals + Globals.size();
}
bool WasmObjectFile::isDefinedGlobalIndex(uint32_t Index) const {
return Index >= NumImportedGlobals && isValidGlobalIndex(Index);
}
bool WasmObjectFile::isValidFunctionSymbolIndex(uint32_t Index) const {
return Index < Symbols.size() && Symbols[Index].isTypeFunction();
}
wasm::WasmFunction &WasmObjectFile::getDefinedFunction(uint32_t Index) {
assert(isDefinedFunctionIndex(Index));
return Functions[Index - NumImportedFunctions];
}
wasm::WasmGlobal &WasmObjectFile::getDefinedGlobal(uint32_t Index) {
assert(isDefinedGlobalIndex(Index));
return Globals[Index - NumImportedGlobals];
}
Error WasmObjectFile::parseStartSection(const uint8_t *Ptr, const uint8_t *End) {
StartFunction = readVaruint32(Ptr);
if (!isValidFunctionIndex(StartFunction))
@ -888,21 +924,10 @@ uint32_t WasmObjectFile::getSymbolFlags(DataRefImpl Symb) const {
Result |= SymbolRef::SF_Global;
if (Sym.isHidden())
Result |= SymbolRef::SF_Hidden;
switch (Sym.Type) {
case WasmSymbol::SymbolType::FUNCTION_IMPORT:
Result |= SymbolRef::SF_Undefined | SymbolRef::SF_Executable;
break;
case WasmSymbol::SymbolType::FUNCTION_EXPORT:
Result |= SymbolRef::SF_Executable;
break;
case WasmSymbol::SymbolType::GLOBAL_IMPORT:
if (!Sym.isDefined())
Result |= SymbolRef::SF_Undefined;
break;
case WasmSymbol::SymbolType::GLOBAL_EXPORT:
break;
}
if (Sym.isTypeFunction())
Result |= SymbolRef::SF_Executable;
return Result;
}
@ -927,7 +952,7 @@ const WasmSymbol &WasmObjectFile::getWasmSymbol(const SymbolRef &Symb) const {
}
Expected<StringRef> WasmObjectFile::getSymbolName(DataRefImpl Symb) const {
return getWasmSymbol(Symb).Name;
return getWasmSymbol(Symb).Info.Name;
}
Expected<uint64_t> WasmObjectFile::getSymbolAddress(DataRefImpl Symb) const {
@ -935,18 +960,17 @@ Expected<uint64_t> WasmObjectFile::getSymbolAddress(DataRefImpl Symb) const {
}
uint64_t WasmObjectFile::getWasmSymbolValue(const WasmSymbol& Sym) const {
switch (Sym.Type) {
case WasmSymbol::SymbolType::FUNCTION_IMPORT:
case WasmSymbol::SymbolType::GLOBAL_IMPORT:
case WasmSymbol::SymbolType::FUNCTION_EXPORT:
return Sym.ElementIndex;
case WasmSymbol::SymbolType::GLOBAL_EXPORT: {
uint32_t GlobalIndex = Sym.ElementIndex - NumImportedGlobals;
assert(GlobalIndex < Globals.size());
const wasm::WasmGlobal &Global = Globals[GlobalIndex];
// WasmSymbols correspond only to I32_CONST globals
assert(Global.InitExpr.Opcode == wasm::WASM_OPCODE_I32_CONST);
return Global.InitExpr.Value.Int32;
switch (Sym.Info.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
return Sym.Info.ElementIndex;
case wasm::WASM_SYMBOL_TYPE_DATA: {
// The value of a data symbol is the segment offset, plus the symbol
// offset within the segment.
uint32_t SegmentIndex = Sym.Info.DataRef.Segment;
const wasm::WasmDataSegment &Segment = DataSegments[SegmentIndex].Data;
assert(Segment.Offset.Opcode == wasm::WASM_OPCODE_I32_CONST);
return Segment.Offset.Value.Int32 + Sym.Info.DataRef.Offset;
}
}
llvm_unreachable("invalid symbol type");
@ -970,12 +994,12 @@ Expected<SymbolRef::Type>
WasmObjectFile::getSymbolType(DataRefImpl Symb) const {
const WasmSymbol &Sym = getWasmSymbol(Symb);
switch (Sym.Type) {
case WasmSymbol::SymbolType::FUNCTION_IMPORT:
case WasmSymbol::SymbolType::FUNCTION_EXPORT:
switch (Sym.Info.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
return SymbolRef::ST_Function;
case WasmSymbol::SymbolType::GLOBAL_IMPORT:
case WasmSymbol::SymbolType::GLOBAL_EXPORT:
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
return SymbolRef::ST_Other;
case wasm::WASM_SYMBOL_TYPE_DATA:
return SymbolRef::ST_Data;
}
@ -985,14 +1009,24 @@ WasmObjectFile::getSymbolType(DataRefImpl Symb) const {
Expected<section_iterator>
WasmObjectFile::getSymbolSection(DataRefImpl Symb) const {
DataRefImpl Ref;
const WasmSymbol& Sym = getWasmSymbol(Symb);
if (Sym.Type == WasmSymbol::SymbolType::GLOBAL_EXPORT)
Ref.d.a = DataSection;
else if (Sym.Type == WasmSymbol::SymbolType::FUNCTION_EXPORT)
Ref.d.a = CodeSection;
else
if (Sym.isUndefined())
return section_end();
DataRefImpl Ref;
switch (Sym.Info.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
Ref.d.a = CodeSection;
break;
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
Ref.d.a = GlobalSection;
break;
case wasm::WASM_SYMBOL_TYPE_DATA:
Ref.d.a = DataSection;
break;
default:
llvm_unreachable("Unknown WasmSymbol::SymbolType");
}
return section_iterator(SectionRef(Ref, this));
}

29
lib/ObjectYAML/WasmYAML.cpp
View File

@ -58,7 +58,7 @@ static void sectionMapping(IO &IO, WasmYAML::LinkingSection &Section) {
commonSectionMapping(IO, Section);
IO.mapRequired("Name", Section.Name);
IO.mapRequired("DataSize", Section.DataSize);
IO.mapOptional("SymbolInfo", Section.SymbolInfos);
IO.mapOptional("SymbolTable", Section.SymbolTable);
IO.mapOptional("SegmentInfo", Section.SegmentInfos);
IO.mapOptional("InitFunctions", Section.InitFunctions);
IO.mapOptional("Comdats", Section.Comdats);
@ -366,7 +366,7 @@ void MappingTraits<WasmYAML::DataSegment>::mapping(
void MappingTraits<WasmYAML::InitFunction>::mapping(
IO &IO, WasmYAML::InitFunction &Init) {
IO.mapRequired("Priority", Init.Priority);
IO.mapRequired("FunctionIndex", Init.FunctionIndex);
IO.mapRequired("Symbol", Init.Symbol);
}
void ScalarEnumerationTraits<WasmYAML::ComdatKind>::enumeration(
@ -391,8 +391,23 @@ void MappingTraits<WasmYAML::Comdat>::mapping(
void MappingTraits<WasmYAML::SymbolInfo>::mapping(IO &IO,
WasmYAML::SymbolInfo &Info) {
IO.mapRequired("Index", Info.Index);
IO.mapRequired("Kind", Info.Kind);
IO.mapRequired("Name", Info.Name);
IO.mapRequired("Flags", Info.Flags);
if (Info.Kind == wasm::WASM_SYMBOL_TYPE_FUNCTION) {
IO.mapRequired("Function", Info.ElementIndex);
} else if (Info.Kind == wasm::WASM_SYMBOL_TYPE_GLOBAL) {
IO.mapRequired("Global", Info.ElementIndex);
} else if (Info.Kind == wasm::WASM_SYMBOL_TYPE_DATA) {
if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0) {
IO.mapRequired("Segment", Info.DataRef.Segment);
IO.mapOptional("Offset", Info.DataRef.Offset, 0u);
IO.mapRequired("Size", Info.DataRef.Size);
}
} else {
llvm_unreachable("unsupported symbol kind");
}
}
void ScalarBitSetTraits<WasmYAML::LimitFlags>::bitset(
@ -414,9 +429,19 @@ void ScalarBitSetTraits<WasmYAML::SymbolFlags>::bitset(
BCaseMask(BINDING_MASK, BINDING_LOCAL);
//BCaseMask(VISIBILITY_MASK, VISIBILITY_DEFAULT);
BCaseMask(VISIBILITY_MASK, VISIBILITY_HIDDEN);
BCaseMask(UNDEFINED, UNDEFINED);
#undef BCaseMask
}
void ScalarEnumerationTraits<WasmYAML::SymbolKind>::enumeration(
IO &IO, WasmYAML::SymbolKind &Kind) {
#define ECase(X) IO.enumCase(Kind, #X, wasm::WASM_SYMBOL_TYPE_##X);
ECase(FUNCTION);
ECase(DATA);
ECase(GLOBAL);
#undef ECase
}
void ScalarEnumerationTraits<WasmYAML::ValueType>::enumeration(
IO &IO, WasmYAML::ValueType &Type) {
#define ECase(X) IO.enumCase(Type, #X, wasm::WASM_TYPE_##X);

2
lib/Target/WebAssembly/MCTargetDesc/WebAssemblyTargetStreamer.cpp
View File

@ -215,7 +215,7 @@ void WebAssemblyTargetWasmStreamer::emitIndirectFunctionType(
WasmSym->setParams(std::move(ValParams));
WasmSym->setReturns(std::move(ValResults));
WasmSym->setIsFunction(true);
WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
}
void WebAssemblyTargetWasmStreamer::emitGlobalImport(StringRef name) {

17
lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
View File

@ -74,7 +74,7 @@ WebAssemblyMCInstLower::GetGlobalAddressSymbol(const MachineOperand &MO) const {
WasmSym->setReturns(std::move(Returns));
WasmSym->setParams(std::move(Params));
WasmSym->setIsFunction(true);
WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
}
return WasmSym;
@ -91,9 +91,16 @@ MCSymbol *WebAssemblyMCInstLower::GetExternalSymbolSymbol(
const WebAssemblySubtarget &Subtarget = Printer.getSubtarget();
// __stack_pointer is a global variable; all other external symbols used by
// CodeGen are functions.
if (strcmp(Name, "__stack_pointer") == 0)
// CodeGen are functions. It's OK to hardcode knowledge of specific symbols
// here; this method is precisely there for fetching the signatures of known
// Clang-provided symbols.
if (strcmp(Name, "__stack_pointer") == 0) {
wasm::ValType iPTR =
Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32;
WasmSym->setType(wasm::WASM_SYMBOL_TYPE_GLOBAL);
WasmSym->setGlobalType(wasm::WasmGlobalType{int32_t(iPTR), true});
return WasmSym;
}
SmallVector<wasm::ValType, 4> Returns;
SmallVector<wasm::ValType, 4> Params;
@ -101,7 +108,7 @@ MCSymbol *WebAssemblyMCInstLower::GetExternalSymbolSymbol(
WasmSym->setReturns(std::move(Returns));
WasmSym->setParams(std::move(Params));
WasmSym->setIsFunction(true);
WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
return WasmSym;
}
@ -189,7 +196,7 @@ void WebAssemblyMCInstLower::Lower(const MachineInstr *MI,
MCSymbolWasm *WasmSym = cast<MCSymbolWasm>(Sym);
WasmSym->setReturns(std::move(Returns));
WasmSym->setParams(std::move(Params));
WasmSym->setIsFunction(true);
WasmSym->setType(wasm::WASM_SYMBOL_TYPE_FUNCTION);
const MCExpr *Expr =
MCSymbolRefExpr::create(WasmSym,

8
test/MC/WebAssembly/array-fill.ll
View File

@ -15,9 +15,13 @@ target triple = "wasm32-unknown-unknown-wasm"
; CHECK: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 2
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: gBd
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: gBd
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 2
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .data

87
test/MC/WebAssembly/bss.ll
View File

@ -9,75 +9,60 @@ target triple = "wasm32-unknown-unknown-wasm"
@foo = global %union.u1 zeroinitializer, align 1
@bar = global %union.u1 zeroinitializer, align 1
; CHECK: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 4
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 8
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 9
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: g0
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 0
; CHECK-NEXT: - Name: g1
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: foo
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: bar
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 6
; CHECK-NEXT: MemoryIndex: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: Content: '00000000'
; CHECK-NEXT: - SectionOffset: 15
; CHECK-NEXT: MemoryIndex: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 4
; CHECK-NEXT: Content: '00000000'
; CHECK-NEXT: - SectionOffset: 24
; CHECK-NEXT: MemoryIndex: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 8
; CHECK-NEXT: Content: '00'
; CHECK-NEXT: - SectionOffset: 30
; CHECK-NEXT: Content: ''
; CHECK-NEXT: - SectionOffset: 29
; CHECK-NEXT: MemoryIndex: 0
; CHECK-NEXT: Offset:
; CHECK-NEXT: Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 9
; CHECK-NEXT: Content: '00'
; CHECK-NEXT: Value: 8
; CHECK-NEXT: Content: ''
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 10
; CHECK-NEXT: DataSize: 8
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: g0
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: g1
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 1
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: foo
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 2
; CHECK-NEXT: Size: 0
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: bar
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 3
; CHECK-NEXT: Size: 0
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .bss.g0

60
test/MC/WebAssembly/comdat.ll
View File

@ -50,28 +50,6 @@ define linkonce_odr i32 @sharedFn() #1 comdat($sharedComdat) {
; CHECK-NEXT: SigIndex: 0
; CHECK-NEXT: - Type: FUNCTION
; CHECK-NEXT: FunctionTypes: [ 0, 0, 0 ]
; CHECK-NEXT: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: callImport
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: basicInlineFn
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: sharedFn
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Name: constantData
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 0
; CHECK-NEXT: - Type: CODE
; CHECK-NEXT: Relocations:
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
@ -98,24 +76,44 @@ define linkonce_odr i32 @sharedFn() #1 comdat($sharedComdat) {
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 3
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: basicInlineFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: - Name: sharedFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: - Name: constantData
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: funcImport
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: callImport
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Function: 1
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: basicInlineFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Function: 2
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: sharedFn
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Function: 3
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: constantData
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 3
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .rodata.constantData
; CHECK-NEXT: Alignment: 1
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Comdats:
; CHECK-NEXT: - Name: basicInlineFn
; CHECK-NEXT: Name: basicInlineFn
; CHECK-NEXT: Entries:
; CHECK-NEXT: - Kind: FUNCTION
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: sharedComdat
; CHECK-NEXT: Name: sharedComdat
; CHECK-NEXT: Entries:
; CHECK-NEXT: - Kind: FUNCTION
; CHECK-NEXT: Index: 3

72
test/MC/WebAssembly/explicit-sections.ll
View File

@ -9,47 +9,8 @@ target triple = "wasm32-unknown-unknown-wasm"
@global2 = global i64 7, align 8, section ".sec1"
@global3 = global i32 8, align 8, section ".sec2"
; CHECK: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 8
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 16
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 24
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: global0
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 0
; CHECK-NEXT: - Name: global1
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: global2
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: global3
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Type: DATA
; CHECK: - Type: DATA
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 6
; CHECK-NEXT: MemoryIndex: 0
@ -69,10 +30,35 @@ target triple = "wasm32-unknown-unknown-wasm"
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 24
; CHECK-NEXT: Content: '08000000'
; CHECK: - Type: CUSTOM
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 28
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: global0
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: global1
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 1
; CHECK-NEXT: Size: 8
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: global2
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 1
; CHECK-NEXT: Offset: 8
; CHECK-NEXT: Size: 8
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: global3
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 2
; CHECK-NEXT: Size: 4
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .data.global0

4
test/MC/WebAssembly/func-address.ll
View File

@ -30,7 +30,7 @@ entry:
; CHECK: }
; CHECK: Relocations [
; CHECK: Section (6) CODE {
; CHECK: Section (5) CODE {
; CHECK: Relocation {
; CHECK: Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB (0)
; CHECK: Offset: 0x4
@ -44,6 +44,6 @@ entry:
; CHECK: Relocation {
; CHECK: Type: R_WEBASSEMBLY_TABLE_INDEX_SLEB (1)
; CHECK: Offset: 0x1E
; CHECK: Index: 0x2
; CHECK: Index: 0x3
; CHECK: }
; CHECK: }

111
test/MC/WebAssembly/global-ctor-dtor.ll
View File

@ -38,11 +38,6 @@ declare void @func3()
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: SigIndex: 1
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: __dso_handle
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: GlobalType: I32
; CHECK-NEXT: GlobalMutable: false
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: __cxa_atexit
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: SigIndex: 2
@ -60,31 +55,6 @@ declare void @func3()
; CHECK-NEXT: SigIndex: 1
; CHECK-NEXT: - Type: FUNCTION
; CHECK-NEXT: FunctionTypes: [ 0, 1, 0, 1 ]
; CHECK-NEXT: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: .Lcall_dtors.42
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 5
; CHECK-NEXT: - Name: .Lregister_call_dtors.42
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 6
; CHECK-NEXT: - Name: .Lcall_dtors
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 7
; CHECK-NEXT: - Name: .Lregister_call_dtors
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 8
; CHECK-NEXT: - Name: global1
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Type: ELEM
; CHECK-NEXT: Segments:
; CHECK-NEXT: - Offset:
@ -97,25 +67,25 @@ declare void @func3()
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Offset: 0x00000004
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_SLEB
; CHECK-NEXT: Index: 5
; CHECK-NEXT: Index: 6
; CHECK-NEXT: Offset: 0x0000000F
; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_SLEB
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Offset: 0x00000017
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Index: 2
; CHECK-NEXT: Offset: 0x0000001D
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 2
; CHECK-NEXT: Index: 3
; CHECK-NEXT: Offset: 0x0000002C
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_SLEB
; CHECK-NEXT: Index: 7
; CHECK-NEXT: Index: 8
; CHECK-NEXT: Offset: 0x00000037
; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_SLEB
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Offset: 0x0000003F
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Index: 2
; CHECK-NEXT: Offset: 0x00000045
; CHECK-NEXT: Functions:
; CHECK-NEXT: - Index: 5
@ -141,17 +111,62 @@ declare void @func3()
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 4
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: __dso_handle
; CHECK-NEXT: Flags: [ BINDING_WEAK, VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: .Lcall_dtors.42
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: func3
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: __dso_handle
; CHECK-NEXT: Flags: [ BINDING_WEAK, VISIBILITY_HIDDEN, UNDEFINED ]
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: __cxa_atexit
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 1
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: func2
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 2
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: func1
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 3
; CHECK-NEXT: - Index: 5
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: func0
; CHECK-NEXT: Flags: [ UNDEFINED ]
; CHECK-NEXT: Function: 4
; CHECK-NEXT: - Index: 6
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: .Lcall_dtors.42
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: - Name: .Lregister_call_dtors.42
; CHECK-NEXT: Function: 5
; CHECK-NEXT: - Index: 7
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: .Lregister_call_dtors.42
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: - Name: .Lcall_dtors
; CHECK-NEXT: Function: 6
; CHECK-NEXT: - Index: 8
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: .Lcall_dtors
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: - Name: .Lregister_call_dtors
; CHECK-NEXT: Function: 7
; CHECK-NEXT: - Index: 9
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: .Lregister_call_dtors
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: Function: 8
; CHECK-NEXT: - Index: 10
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: global1
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 4
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .data.global1
@ -159,11 +174,11 @@ declare void @func3()
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: InitFunctions:
; CHECK-NEXT: - Priority: 42
; CHECK-NEXT: FunctionIndex: 3
; CHECK-NEXT: Symbol: 4
; CHECK-NEXT: - Priority: 42
; CHECK-NEXT: FunctionIndex: 6
; CHECK-NEXT: Symbol: 7
; CHECK-NEXT: - Priority: 65535
; CHECK-NEXT: FunctionIndex: 4
; CHECK-NEXT: Symbol: 5
; CHECK-NEXT: - Priority: 65535
; CHECK-NEXT: FunctionIndex: 8
; CHECK-NEXT: Symbol: 9
; CHECK-NEXT: ...

6
test/MC/WebAssembly/reloc-code.ll
View File

@ -24,17 +24,17 @@ entry:
; CHECK: Format: WASM
; CHECK: Relocations [
; CHECK-NEXT: Section (6) CODE {
; CHECK-NEXT: Section (4) CODE {
; CHECK-NEXT: Relocation {
; CHECK-NEXT: Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB (3)
; CHECK-NEXT: Offset: 0x9
; CHECK-NEXT: Index: 0x0
; CHECK-NEXT: Index: 0x3
; CHECK-NEXT: Addend: 0
; CHECK-NEXT: }
; CHECK-NEXT: Relocation {
; CHECK-NEXT: Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB (3)
; CHECK-NEXT: Offset: 0x14
; CHECK-NEXT: Index: 0x1
; CHECK-NEXT: Index: 0x4
; CHECK-NEXT: Addend: 0
; CHECK-NEXT: }
; CHECK-NEXT: Relocation {

2
test/MC/WebAssembly/reloc-data.ll
View File

@ -13,7 +13,7 @@ target triple = "wasm32-unknown-unknown-wasm"
; CHECK: Format: WASM
; CHECK: Relocations [
; CHECK-NEXT: Section (4) DATA {
; CHECK-NEXT: Section (2) DATA {
; CHECK-NEXT: Relocation {
; CHECK-NEXT: Type: R_WEBASSEMBLY_MEMORY_ADDR_I32 (5)
; CHECK-NEXT: Offset: 0x13

6
test/MC/WebAssembly/sections.ll
View File

@ -29,12 +29,6 @@ entry:
; CHECK: Type: FUNCTION (0x3)
; CHECK: }
; CHECK: Section {
; CHECK: Type: GLOBAL (0x6)
; CHECK: }
; CHECK: Section {
; CHECK: Type: EXPORT (0x7)
; CHECK: }
; CHECK: Section {
; CHECK: Type: CODE (0xA)
; CHECK: }
; CHECK: Section {

68
test/MC/WebAssembly/unnamed-data.ll
View File

@ -9,47 +9,7 @@ target triple = "wasm32-unknown-unknown-wasm"
@b = global i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str2, i32 0, i32 0), align 8
; CHECK: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 6
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 16
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 24
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: .L.str1
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 0
; CHECK-NEXT: - Name: .L.str2
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: a
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: b
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Type: DATA
; CHECK: - Type: DATA
; CHECK-NEXT: Relocations:
; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_I32
; CHECK-NEXT: Index: 0
@ -85,11 +45,31 @@ target triple = "wasm32-unknown-unknown-wasm"
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 28
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: .L.str1
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: .L.str1
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: - Name: .L.str2
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 6
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: .L.str2
; CHECK-NEXT: Flags: [ BINDING_LOCAL ]
; CHECK-NEXT: Segment: 1
; CHECK-NEXT: Size: 6
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: a
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 2
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: b
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 3
; CHECK-NEXT: Size: 4
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .rodata..L.str1

12
test/MC/WebAssembly/visibility.ll
View File

@ -17,7 +17,15 @@ entry:
; CHECK: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 0
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: hiddenVis
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: defaultVis
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: hiddenVis
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 1
; CHECK-NEXT: ...

169
test/MC/WebAssembly/weak-alias.ll
View File

@ -65,118 +65,57 @@ entry:
; CHECK-NEXT: ElemType: ANYFUNC
; CHECK-NEXT: Limits:
; CHECK-NEXT: Initial: 0x00000001
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: foo_alias
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: SigIndex: 0
; CHECK-NEXT: - Module: env
; CHECK-NEXT: Field: bar_alias
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: GlobalType: I32
; CHECK-NEXT: GlobalMutable: false
; CHECK-NEXT: - Type: FUNCTION
; CHECK-NEXT: FunctionTypes: [ 0, 0, 0, 0, 0 ]
; CHECK-NEXT: - Type: GLOBAL
; CHECK-NEXT: Globals:
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 8
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 16
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Type: I32
; CHECK-NEXT: Mutable: false
; CHECK-NEXT: InitExpr:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 0
; CHECK-NEXT: - Type: EXPORT
; CHECK-NEXT: Exports:
; CHECK-NEXT: - Name: foo
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: call_direct
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: call_alias
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Name: call_direct_ptr
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 4
; CHECK-NEXT: - Name: direct_address
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: call_alias_ptr
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 5
; CHECK-NEXT: - Name: alias_address
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 2
; CHECK-NEXT: - Name: bar
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Name: foo_alias
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Index: 1
; CHECK-NEXT: - Name: bar_alias
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: Index: 3
; CHECK-NEXT: - Type: ELEM
; CHECK-NEXT: Segments:
; CHECK-NEXT: - Offset:
; CHECK-NEXT: Opcode: I32_CONST
; CHECK-NEXT: Value: 1
; CHECK-NEXT: Functions: [ 1 ]
; CHECK-NEXT: Functions: [ 0 ]
; CHECK-NEXT: - Type: CODE
; CHECK-NEXT: Relocations:
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Offset: 0x00000009
; CHECK-NEXT: - Type: R_WEBASSEMBLY_FUNCTION_INDEX_LEB
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Index: 8
; CHECK-NEXT: Offset: 0x00000012
; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Index: 4
; CHECK-NEXT: Offset: 0x0000001E
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TYPE_INDEX_LEB
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Offset: 0x00000024
; CHECK-NEXT: - Type: R_WEBASSEMBLY_MEMORY_ADDR_LEB
; CHECK-NEXT: Index: 2
; CHECK-NEXT: Index: 6
; CHECK-NEXT: Offset: 0x00000031
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TYPE_INDEX_LEB
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Offset: 0x00000037
; CHECK-NEXT: Functions:
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 41000B
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 1081808080000B
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 1080808080000B
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 1080808080000B
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 410028028880808000118080808000000B
; CHECK-NEXT: - Index: 5
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: Locals:
; CHECK-NEXT: Body: 410028029080808000118080808000000B
; CHECK-NEXT: - Type: DATA
; CHECK-NEXT: Relocations:
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_I32
; CHECK-NEXT: Index: 1
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Offset: 0x0000000F
; CHECK-NEXT: - Type: R_WEBASSEMBLY_TABLE_INDEX_I32
; CHECK-NEXT: Index: 0
; CHECK-NEXT: Index: 8
; CHECK-NEXT: Offset: 0x00000018
; CHECK-NEXT: Segments:
; CHECK-NEXT: - SectionOffset: 6
@ -200,21 +139,61 @@ entry:
; CHECK-NEXT: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 20
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: foo_alias
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: foo
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: call_direct
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 1
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: call_alias
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 2
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: call_direct_ptr
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 3
; CHECK-NEXT: - Index: 4
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: direct_address
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 1
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 5
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: call_alias_ptr
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 4
; CHECK-NEXT: - Index: 6
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: alias_address
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 2
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 7
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: bar
; CHECK-NEXT: Flags: [ ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 4
; CHECK-NEXT: - Index: 8
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: foo_alias
; CHECK-NEXT: Flags: [ BINDING_WEAK, VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: bar_alias
; CHECK-NEXT: Function: 0
; CHECK-NEXT: - Index: 9
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: bar_alias
; CHECK-NEXT: Flags: [ BINDING_WEAK, VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: foo
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: call_direct
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: call_alias
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: call_direct_ptr
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: - Name: call_alias_ptr
; CHECK-NEXT: Flags: [ VISIBILITY_HIDDEN ]
; CHECK-NEXT: Segment: 0
; CHECK-NEXT: Size: 4
; CHECK-NEXT: SegmentInfo:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: .data.bar
@ -231,13 +210,13 @@ entry:
; CHECK-NEXT: ...
; CHECK-SYMS: SYMBOL TABLE:
; CHECK-SYMS-NEXT: 00000001 gw F CODE .hidden foo_alias
; CHECK-SYMS-NEXT: 00000000 gw DATA .hidden bar_alias
; CHECK-SYMS-NEXT: 00000001 g F CODE .hidden foo
; CHECK-SYMS-NEXT: 00000002 g F CODE .hidden call_direct
; CHECK-SYMS-NEXT: 00000003 g F CODE .hidden call_alias
; CHECK-SYMS-NEXT: 00000004 g F CODE .hidden call_direct_ptr
; CHECK-SYMS-NEXT: 00000000 g F CODE .hidden foo
; CHECK-SYMS-NEXT: 00000001 g F CODE .hidden call_direct
; CHECK-SYMS-NEXT: 00000002 g F CODE .hidden call_alias
; CHECK-SYMS-NEXT: 00000003 g F CODE .hidden call_direct_ptr
; CHECK-SYMS-NEXT: 00000008 g DATA direct_address
; CHECK-SYMS-NEXT: 00000005 g F CODE .hidden call_alias_ptr
; CHECK-SYMS-NEXT: 00000004 g F CODE .hidden call_alias_ptr
; CHECK-SYMS-NEXT: 00000010 g DATA alias_address
; CHECK-SYMS-NEXT: 00000000 g DATA bar
; CHECK-SYMS-NEXT: 00000000 gw F CODE .hidden foo_alias
; CHECK-SYMS-NEXT: 00000000 gw DATA .hidden bar_alias

18
test/MC/WebAssembly/weak.ll
View File

@ -18,19 +18,19 @@ entry:
; CHECK-NEXT: Field: __linear_memory
; CHECK: - Module: env
; CHECK-NEXT: Field: __indirect_function_table
; CHECK: - Module: env
; CHECK-NEXT: Field: weak_external_data
; CHECK-NEXT: Kind: GLOBAL
; CHECK-NEXT: GlobalType: I32
; CHECK-NEXT: GlobalMutable: false
; CHECK: - Type: CUSTOM
; CHECK-NEXT: Name: linking
; CHECK-NEXT: DataSize: 0
; CHECK-NEXT: SymbolInfo:
; CHECK-NEXT: - Name: weak_external_data
; CHECK-NEXT: Flags: [ BINDING_WEAK ]
; CHECK-NEXT: - Name: weak_function
; CHECK-NEXT: SymbolTable:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Kind: DATA
; CHECK-NEXT: Name: weak_external_data
; CHECK-NEXT: Flags: [ BINDING_WEAK, UNDEFINED ]
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Kind: FUNCTION
; CHECK-NEXT: Name: weak_function
; CHECK-NEXT: Flags: [ BINDING_WEAK, VISIBILITY_HIDDEN ]
; CHECK-NEXT: Function: 0
; CHECK-NEXT: ...

BIN
test/Object/Inputs/trivial-object-test.wasm
View File

Binary file not shown.

5
test/Object/nm-trivial-object.test
View File

@ -59,11 +59,14 @@ COFF32-NEXT: U _SomeOtherFunction
COFF32-NEXT: 00000000 T _main
COFF32-NEXT: U _puts
WASM: U SomeOtherFunction
WASM: 00000000 d .L.str
WASM-NEXT: U SomeOtherFunction
WASM-NEXT: 00000002 T main
WASM-NEXT: U puts
WASM-NEXT: 00000010 D var
COFF64: 00000000 d .data
COFF64-NEXT: 00000000 t .text
COFF64-NEXT: 00000000 r ??__Ex@@YAXXZ

38
test/Object/obj2yaml.test
View File

@ -645,17 +645,39 @@ ELF-AVR-NEXT: - Name: _end
ELF-AVR-NEXT: Section: .data
ELF-AVR-NEXT: Value: 0x0000000000800060
WASM: --- !WASM
WASM-NEXT: FileHeader:
WASM-NEXT: Version: 0x00000001
WASM: - Type: EXPORT
WASM-NEXT: Exports:
WASM-NEXT: - Name: main
WASM-NEXT: Kind: FUNCTION
WASM-NEXT: Index: 2
WASM-NEXT: - Name: var
WASM-NEXT: Kind: GLOBAL
WASM-NEXT: Index: 1
WASM: - Type: CUSTOM
WASM-NEXT: Name: linking
WASM-NEXT: DataSize: 20
WASM-NEXT: SymbolTable:
WASM-NEXT: - Index: 0
WASM-NEXT: Kind: FUNCTION
WASM-NEXT: Name: puts
WASM-NEXT: Flags: [ UNDEFINED ]
WASM-NEXT: Function: 0
WASM-NEXT: - Index: 1
WASM: Name: SomeOtherFunction
WASM: - Index: 2
WASM: Name: main
WASM: - Index: 3
WASM-NEXT: Kind: DATA
WASM-NEXT: Name: .L.str
WASM-NEXT: Flags: [ BINDING_LOCAL ]
WASM-NEXT: Segment: 0
WASM-NEXT: Size: 13
WASM-NEXT: - Index: 4
WASM: Name: var
WASM: SegmentInfo:
WASM-NEXT: - Index: 0
WASM-NEXT: Name: .rodata..L.str
WASM-NEXT: Alignment: 1
WASM-NEXT: Flags: [ ]
WASM-NEXT: - Index: 1
WASM: ...
ELF-X86-64-UNWIND: - Name: .eh_frame
ELF-X86-64-UNWIND-NEXT: Type: SHT_X86_64_UNWIND

2
test/Object/objdump-relocations.test
View File

@ -60,7 +60,7 @@ ELF-MIPSEL: R_MIPS_CALL16 puts
ELF-MIPSEL: R_MIPS_CALL16 SomeOtherFunction
WASM: CODE
WASM-NEXT: R_WEBASSEMBLY_MEMORY_ADDR_SLEB 0+0
WASM-NEXT: R_WEBASSEMBLY_MEMORY_ADDR_SLEB 3+0
WASM-NEXT: R_WEBASSEMBLY_FUNCTION_INDEX_LEB 0+0
WASM-NEXT: R_WEBASSEMBLY_FUNCTION_INDEX_LEB 1+0

22
test/ObjectYAML/wasm/linking_section.yaml
View File

@ -30,9 +30,12 @@ Sections:
- Type: CUSTOM
Name: linking
DataSize: 999
SymbolInfo:
- Name: bar
Flags: [ BINDING_WEAK ]
SymbolTable:
- Index: 0
Kind: FUNCTION
Name: bar
Flags: [ BINDING_WEAK, UNDEFINED ]
Function: 0
SegmentInfo:
- Index: 0
Alignment: 4
@ -44,14 +47,17 @@ Sections:
Name: moredata
InitFunctions:
- Priority: 1
FunctionIndex: 0
Symbol: 0
...
# CHECK: - Type: CUSTOM
# CHECK-NEXT: Name: linking
# CHECK-NEXT: DataSize: 999
# CHECK-NEXT: SymbolInfo:
# CHECK-NEXT: - Name: bar
# CHECK-NEXT: Flags: [ BINDING_WEAK ]
# CHECK-NEXT: SymbolTable:
# CHECK-NEXT: - Index: 0
# CHECK-NEXT: Kind: FUNCTION
# CHECK-NEXT: Name: bar
# CHECK-NEXT: Flags: [ BINDING_WEAK, UNDEFINED ]
# CHECK-NEXT: Function: 0
# CHECK-NEXT: SegmentInfo:
# CHECK-NEXT: - Index: 0
# CHECK-NEXT: Name: mydata
@ -63,5 +69,5 @@ Sections:
# CHECK-NEXT: Flags: [ ]
# CHECK-NEXT: InitFunctions:
# CHECK-NEXT: - Priority: 1
# CHECK-NEXT: FunctionIndex: 0
# CHECK-NEXT: Symbol: 0
# CHECK-NEXT: ...

28
test/ObjectYAML/wasm/weak_symbols.yaml
View File

@ -37,11 +37,17 @@ Sections:
- Type: CUSTOM
Name: linking
DataSize: 10
SymbolInfo:
- Name: function_export
SymbolTable:
- Index: 0
Kind: FUNCTION
Name: function_export
Flags: [ BINDING_WEAK ]
- Name: global_export
Function: 0
- Index: 1
Kind: GLOBAL
Name: global_export
Flags: [ BINDING_WEAK ]
Global: 0
...
# CHECK: --- !WASM
# CHECK: FileHeader:
@ -58,8 +64,14 @@ Sections:
# CHECK: - Type: CUSTOM
# CHECK: Name: linking
# CHECK: DataSize: 10
# CHECK: SymbolInfo:
# CHECK: - Name: function_export
# CHECK: Flags: [ BINDING_WEAK ]
# CHECK: - Name: global_export
# CHECK: Flags: [ BINDING_WEAK ]
# CHECK: SymbolTable:
# CHECK: - Index: 0
# CHECK: Kind: FUNCTION
# CHECK: Name: function_export
# CHECK: Flags: [ BINDING_WEAK ]
# CHECK: Function: 0
# CHECK: - Index: 1
# CHECK: Kind: GLOBAL
# CHECK: Name: global_export
# CHECK: Flags: [ BINDING_WEAK ]
# CHECK: Global: 0

93
test/tools/llvm-nm/wasm/exports.yaml
View File

@ -1,7 +1,6 @@
# RUN: yaml2obj < %s | llvm-nm - | FileCheck -strict-whitespace %s
# That wasm exports of functions and globals are displayed as global data and
# code symbols.
# Check that wasm exports of functions/globals/data are displayed correctly
--- !WASM
FileHeader:
@ -13,69 +12,55 @@ Sections:
ReturnType: I32
ParamTypes:
- I32
- Type: IMPORT
Imports:
- Module: env
Field: fimport
Kind: FUNCTION
SigIndex: 0
- Module: env
Field: gimport
Kind: GLOBAL
GlobalType: I32
GlobalMutable: false
- Type: FUNCTION
FunctionTypes: [ 0, 0, 0, 0, 0 ]
FunctionTypes: [ 0 ]
- Type: GLOBAL
Globals:
- Index: 1
- Index: 0
Type: I32
Mutable: false
InitExpr:
Opcode: I64_CONST
Value: 32
- Index: 2
Type: I32
Mutable: false
InitExpr:
Opcode: I32_CONST
Value: 64
- Index: 3
Type: I32
Mutable: false
InitExpr:
Opcode: I32_CONST
Value: 1024
- Type: EXPORT
Exports:
- Name: foo
Kind: FUNCTION
Index: 0x00000004
- Name: bar
Kind: GLOBAL
Index: 0x00000003
- Type: CODE
Functions:
- Index: 1
Locals:
Body: 00
- Index: 2
Locals:
Body: 00
- Index: 3
Locals:
Body: 00
- Index: 4
Locals:
Body: 00
- Index: 5
- Index: 0
Locals:
Body: 00
- Type: DATA
Segments:
- SectionOffset: 6
MemoryIndex: 0
Offset:
Opcode: I32_CONST
Value: 0
Content: '616263'
- Type: CUSTOM
Name: "linking"
DataSize: 0
Name: linking
DataSize: 3
SymbolTable:
- Index: 0
Kind: FUNCTION
Name: fexport
Flags: [ ]
Function: 0
- Index: 1
Kind: GLOBAL
Name: gexport
Flags: [ ]
Global: 0
- Index: 2
Kind: DATA
Name: dexport
Flags: [ ]
Segment: 0
Size: 3
SegmentInfo:
- Index: 0
Name: .rodata.constantData
Alignment: 1
Flags: [ ]
# CHECK: 00000400 D bar
# CHECK-NEXT: U fimport
# CHECK-NEXT: 00000004 T foo
# CHECK-NEXT: U gimport
# CHECK: 00000000 D dexport
# CHECK-NEXT: 00000000 T fexport
# CHECK-NEXT: 00000000 D gexport

30
test/tools/llvm-nm/wasm/imports.yaml
View File

@ -1,5 +1,7 @@
# RUN: yaml2obj < %s | llvm-nm - | FileCheck -strict-whitespace %s
# Check that wasm import of functions/globals/data are displayed correctly
--- !WASM
FileHeader:
Version: 0x00000001
@ -13,17 +15,33 @@ Sections:
- Type: IMPORT
Imports:
- Module: env
Field: foo
Field: fimport
Kind: FUNCTION
SigIndex: 0
- Module: env
Field: bar
Field: gimport
Kind: GLOBAL
GlobalType: I32
GlobalMutable: false
- Type: CUSTOM
Name: "linking"
DataSize: 0
Name: linking
DataSize: 3
SymbolTable:
- Index: 0
Kind: FUNCTION
Name: fimport
Flags: [ UNDEFINED ]
Function: 0
- Index: 1
Kind: GLOBAL
Name: gimport
Flags: [ UNDEFINED ]
Global: 0
- Index: 2
Kind: DATA
Name: dimport
Flags: [ UNDEFINED ]
# CHECK: U bar
# CHECK: U foo
# CHECK: U dimport
# CHECK-NEXT: U fimport
# CHECK-NEXT: U gimport

102
test/tools/llvm-nm/wasm/weak-symbols.yaml
View File

@ -1,7 +1,6 @@
# RUN: yaml2obj < %s | llvm-nm - | FileCheck -strict-whitespace %s
# That wasm exports of functions and globals are displayed as global data and
# code symbols.
# Check that wasm weak function/global/data symbols are displayed correctly
--- !WASM
FileHeader:
@ -20,12 +19,12 @@ Sections:
Kind: FUNCTION
SigIndex: 0
- Module: env
Field: weak_import_data
Field: weak_import_global
Kind: GLOBAL
GlobalType: I32
GlobalMutable: false
- Type: FUNCTION
FunctionTypes: [ 0, 0, 0, 0 ]
FunctionTypes: [ 0 ]
- Type: GLOBAL
Globals:
- Index: 1
@ -34,54 +33,63 @@ Sections:
InitExpr:
Opcode: I64_CONST
Value: 32
- Index: 2
Type: I32
Mutable: false
InitExpr:
Opcode: I32_CONST
Value: 64
- Index: 3
Type: I32
Mutable: false
InitExpr:
Opcode: I32_CONST
Value: 1024
- Type: EXPORT
Exports:
- Name: weak_global_func
Kind: FUNCTION
Index: 0x00000004
- Name: weak_global_data
Kind: GLOBAL
Index: 0x00000003
- Type: CODE
Functions:
- Index: 1
Locals:
Body: 00
- Index: 2
Locals:
Body: 00
- Index: 3
Locals:
Body: 00
- Index: 4
Locals:
Body: 00
- Type: DATA
Segments:
- SectionOffset: 6
MemoryIndex: 0
Offset:
Opcode: I32_CONST
Value: 0
Content: '616263'
- Type: CUSTOM
Name: linking
DataSize: 0
SymbolInfo:
- Name: weak_global_func
Flags: [ BINDING_WEAK ]
- Name: weak_global_data
Flags: [ BINDING_WEAK ]
- Name: weak_import_func
Flags: [ BINDING_WEAK ]
- Name: weak_import_data
Flags: [ BINDING_WEAK ]
DataSize: 3
SymbolTable:
- Index: 0
Kind: DATA
Name: weak_defined_data
Flags: [ BINDING_WEAK ]
Segment: 0
Size: 3
- Index: 1
Kind: FUNCTION
Name: weak_defined_func
Flags: [ BINDING_WEAK ]
Function: 1
- Index: 2
Kind: GLOBAL
Name: weak_defined_global
Flags: [ BINDING_WEAK ]
Global: 1
- Index: 3
Kind: DATA
Name: weak_import_data
Flags: [ BINDING_WEAK, UNDEFINED ]
- Index: 4
Kind: FUNCTION
Name: weak_import_func
Flags: [ BINDING_WEAK, UNDEFINED ]
Function: 0
- Index: 5
Kind: GLOBAL
Name: weak_import_global
Flags: [ BINDING_WEAK, UNDEFINED ]
Global: 0
SegmentInfo:
- Index: 0
Name: .rodata.constantData
Alignment: 1
Flags: [ ]
# CHECK: 00000400 W weak_global_data
# CHECK: 00000004 W weak_global_func
# CHECK: w weak_import_data
# CHECK: w weak_import_func
# CHECK: 00000000 W weak_defined_data
# CHECK-NEXT: 00000001 W weak_defined_func
# CHECK-NEXT: 00000001 W weak_defined_global
# CHECK-NEXT: w weak_import_data
# CHECK-NEXT: w weak_import_func
# CHECK-NEXT: w weak_import_global

BIN
test/tools/llvm-objdump/Inputs/trivial.obj.wasm
View File

Binary file not shown.

2
test/tools/llvm-objdump/WebAssembly/symbol-table.test
View File

@ -4,5 +4,5 @@ CHECK: SYMBOL TABLE:
CHECK-NEXT: 00000000 g F *UND* puts
CHECK-NEXT: 00000000 g F *UND* SomeOtherFunction
CHECK-NEXT: 00000002 g F CODE main
CHECK-NEXT: 00000000 l DATA .L.str
CHECK-NEXT: 00000010 g DATA var

19
test/tools/llvm-objdump/wasm.txt
View File

@ -2,18 +2,13 @@
# CHECK: Sections:
# CHECK-NEXT: Idx Name Size Address Type
# CHECK-NEXT: 0 TYPE 0000000e 0000000000000000
# CHECK-NEXT: 1 IMPORT 00000024 0000000000000000
# CHECK-NEXT: 2 FUNCTION 00000002 0000000000000000
# CHECK-NEXT: 3 TABLE 00000004 0000000000000000
# CHECK-NEXT: 4 MEMORY 00000003 0000000000000000
# CHECK-NEXT: 5 GLOBAL 0000000b 0000000000000000
# CHECK-NEXT: 6 EXPORT 0000000e 0000000000000000
# CHECK-NEXT: 7 CODE 00000019 0000000000000000 TEXT
# CHECK-NEXT: 8 DATA 0000001a 0000000000000000 DATA
# CHECK-NEXT: 9 name 0000002b 0000000000000000
# CHECK-NEXT: 10 reloc.CODE 00000017 0000000000000000
# CHECK-NEXT: 11 linking 00000016 0000000000000000
# CHECK-NEXT: 0 TYPE 0000000e 0000000000000000
# CHECK-NEXT: 1 IMPORT 0000005d 0000000000000000
# CHECK-NEXT: 2 FUNCTION 00000002 0000000000000000
# CHECK-NEXT: 3 CODE 00000019 0000000000000000 TEXT
# CHECK-NEXT: 4 DATA 0000001c 0000000000000000 DATA
# CHECK-NEXT: 5 reloc.CODE 00000017 0000000000000000
# CHECK-NEXT: 6 linking 0000005c 0000000000000000
# RUN: llvm-objdump -p %p/Inputs/trivial.obj.wasm | FileCheck %s -check-prefix CHECK-HEADER

BIN
test/tools/llvm-readobj/Inputs/trivial.obj.wasm
View File

Binary file not shown.

4
test/tools/llvm-readobj/relocations.test
View File

@ -287,11 +287,11 @@ MACHO-ARM-NEXT: }
MACHO-ARM-NEXT: ]
WASM: Relocations [
WASM-NEXT: Section (8) CODE {
WASM-NEXT: Section (4) CODE {
WASM-NEXT: Relocation {
WASM-NEXT: Type: R_WEBASSEMBLY_MEMORY_ADDR_SLEB (4)
WASM-NEXT: Offset: 0x4
WASM-NEXT: Index: 0x0
WASM-NEXT: Index: 0x3
WASM-NEXT: Addend: 0
WASM-NEXT: }
WASM-NEXT: Relocation {

46
test/tools/llvm-readobj/sections.test
View File

@ -501,50 +501,26 @@ WASM-NEXT: Offset: 8
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: IMPORT (0x2)
WASM-NEXT: Size: 36
WASM-NEXT: Size: 93
WASM-NEXT: Offset: 28
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: FUNCTION (0x3)
WASM-NEXT: Size: 2
WASM-NEXT: Offset: 70
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: TABLE (0x4)
WASM-NEXT: Size: 4
WASM-NEXT: Offset: 78
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: MEMORY (0x5)
WASM-NEXT: Size: 3
WASM-NEXT: Offset: 88
WASM-NEXT: Memories [
WASM-NEXT: Memory {
WASM-NEXT: InitialPages: 1
WASM-NEXT: }
WASM-NEXT: ]
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: GLOBAL (0x6)
WASM-NEXT: Size: 6
WASM-NEXT: Offset: 97
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: EXPORT (0x7)
WASM-NEXT: Size: 8
WASM-NEXT: Offset: 109
WASM-NEXT: Offset: 127
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CODE (0xA)
WASM-NEXT: Size: 25
WASM-NEXT: Offset: 123
WASM-NEXT: Offset: 135
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: DATA (0xB)
WASM-NEXT: Size: 19
WASM-NEXT: Offset: 154
WASM-NEXT: Offset: 166
WASM-NEXT: Segments [
WASM-NEXT: Segment {
WASM-NEXT: Name: .rodata..L.str
WASM-NEXT: Size: 13
WASM-NEXT: Offset: 0
WASM-NEXT: }
@ -552,20 +528,14 @@ WASM-NEXT: ]
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CUSTOM (0x0)
WASM-NEXT: Size: 43
WASM-NEXT: Offset: 179
WASM-NEXT: Name: name
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CUSTOM (0x0)
WASM-NEXT: Size: 23
WASM-NEXT: Offset: 228
WASM-NEXT: Offset: 191
WASM-NEXT: Name: reloc.CODE
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CUSTOM (0x0)
WASM-NEXT: Size: 22
WASM-NEXT: Offset: 257
WASM-NEXT: Size: 72
WASM-NEXT: Offset: 220
WASM-NEXT: Name: linking
WASM-NEXT: DataSize: 13
WASM-NEXT: }

15
test/tools/llvm-readobj/symbols.test
View File

@ -74,17 +74,22 @@ ELF-NEXT: }
WASM: Symbols [
WASM-NEXT: Symbol {
WASM-NEXT: Name: puts
WASM-NEXT: Type: FUNCTION_IMPORT (0x0)
WASM-NEXT: Flags: 0x0
WASM-NEXT: Type: FUNCTION (0x0)
WASM-NEXT: Flags: 0x10
WASM-NEXT: }
WASM-NEXT: Symbol {
WASM-NEXT: Name: SomeOtherFunction
WASM-NEXT: Type: FUNCTION_IMPORT (0x0)
WASM-NEXT: Flags: 0x0
WASM-NEXT: Type: FUNCTION (0x0)
WASM-NEXT: Flags: 0x10
WASM-NEXT: }
WASM-NEXT: Symbol {
WASM-NEXT: Name: main
WASM-NEXT: Type: FUNCTION_EXPORT (0x1)
WASM-NEXT: Type: FUNCTION (0x0)
WASM-NEXT: Flags: 0x0
WASM-NEXT: }
WASM-NEXT: Symbol {
WASM-NEXT: Name: .L.str
WASM-NEXT: Type: DATA (0x1)
WASM-NEXT: Flags: 0x2
WASM-NEXT: }
WASM-NEXT: ]

18
tools/llvm-readobj/WasmDumper.cpp
View File

@ -23,11 +23,10 @@ using namespace object;
namespace {
static const EnumEntry<unsigned> WasmSymbolTypes[] = {
#define ENUM_ENTRY(X) { #X, static_cast<unsigned>(WasmSymbol::SymbolType::X) }
ENUM_ENTRY(FUNCTION_IMPORT),
ENUM_ENTRY(FUNCTION_EXPORT),
ENUM_ENTRY(GLOBAL_IMPORT),
ENUM_ENTRY(GLOBAL_EXPORT),
#define ENUM_ENTRY(X) { #X, wasm::WASM_SYMBOL_TYPE_##X }
ENUM_ENTRY(FUNCTION),
ENUM_ENTRY(DATA),
ENUM_ENTRY(GLOBAL),
#undef ENUM_ENTRY
};
@ -158,8 +157,7 @@ void WasmDumper::printSections() {
if (!LinkingData.InitFunctions.empty()) {
ListScope Group(W, "InitFunctions");
for (const wasm::WasmInitFunc &F: LinkingData.InitFunctions)
W.startLine() << F.FunctionIndex << " (priority=" << F.Priority
<< ")\n";
W.startLine() << F.Symbol << " (priority=" << F.Priority << ")\n";
}
}
break;
@ -203,9 +201,9 @@ void WasmDumper::printSections() {
void WasmDumper::printSymbol(const SymbolRef &Sym) {
DictScope D(W, "Symbol");
WasmSymbol Symbol = Obj->getWasmSymbol(Sym.getRawDataRefImpl());
W.printString("Name", Symbol.Name);
W.printEnum("Type", static_cast<unsigned>(Symbol.Type), makeArrayRef(WasmSymbolTypes));
W.printHex("Flags", Symbol.Flags);
W.printString("Name", Symbol.Info.Name);
W.printEnum("Type", Symbol.Info.Kind, makeArrayRef(WasmSymbolTypes));
W.printHex("Flags", Symbol.Info.Flags);
}
}

23
tools/obj2yaml/wasm2yaml.cpp
View File

@ -91,16 +91,27 @@ std::unique_ptr<WasmYAML::CustomSection> WasmDumper::dumpCustomSection(const Was
}
SegmentIndex++;
}
for (const object::SymbolRef& Sym: Obj.symbols()) {
const object::WasmSymbol Symbol = Obj.getWasmSymbol(Sym);
if (Symbol.Flags != 0) {
WasmYAML::SymbolInfo Info{Symbol.Name, Symbol.Flags};
LinkingSec->SymbolInfos.emplace_back(Info);
uint32_t SymbolIndex = 0;
for (const wasm::WasmSymbolInfo &Symbol : Obj.linkingData().SymbolTable) {
WasmYAML::SymbolInfo Info;
Info.Index = SymbolIndex++;
Info.Kind = static_cast<uint32_t>(Symbol.Kind);
Info.Name = Symbol.Name;
Info.Flags = Symbol.Flags;
switch (Symbol.Kind) {
case wasm::WASM_SYMBOL_TYPE_DATA:
Info.DataRef = Symbol.DataRef;
break;
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
Info.ElementIndex = Symbol.ElementIndex;
break;
}
LinkingSec->SymbolTable.emplace_back(Info);
}
LinkingSec->DataSize = Obj.linkingData().DataSize;
for (const wasm::WasmInitFunc &Func : Obj.linkingData().InitFunctions) {
WasmYAML::InitFunction F{Func.Priority, Func.FunctionIndex};
WasmYAML::InitFunction F{Func.Priority, Func.Symbol};
LinkingSec->InitFunctions.emplace_back(F);
}
CustomSec = std::move(LinkingSec);

37
tools/yaml2obj/yaml2wasm.cpp
View File

@ -12,6 +12,7 @@
///
//===----------------------------------------------------------------------===//
//
#include "llvm/ObjectYAML/ObjectYAML.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/LEB128.h"
@ -140,14 +141,36 @@ int WasmWriter::writeSectionContent(raw_ostream &OS, WasmYAML::LinkingSection &S
encodeULEB128(Section.DataSize, SubSection.GetStream());
SubSection.Done();
// SYMBOL_INFO subsection
if (Section.SymbolInfos.size()) {
encodeULEB128(wasm::WASM_SYMBOL_INFO, OS);
// SYMBOL_TABLE subsection
if (Section.SymbolTable.size()) {
encodeULEB128(wasm::WASM_SYMBOL_TABLE, OS);
encodeULEB128(Section.SymbolInfos.size(), SubSection.GetStream());
for (const WasmYAML::SymbolInfo &Info : Section.SymbolInfos) {
writeStringRef(Info.Name, SubSection.GetStream());
encodeULEB128(Section.SymbolTable.size(), SubSection.GetStream());
#ifndef _NDEBUG
uint32_t SymbolIndex = 0;
#endif
for (const WasmYAML::SymbolInfo &Info : Section.SymbolTable) {
assert(Info.Index == SymbolIndex++);
encodeULEB128(Info.Kind, SubSection.GetStream());
encodeULEB128(Info.Flags, SubSection.GetStream());
switch (Info.Kind) {
case wasm::WASM_SYMBOL_TYPE_FUNCTION:
case wasm::WASM_SYMBOL_TYPE_GLOBAL:
encodeULEB128(Info.ElementIndex, SubSection.GetStream());
if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0)
writeStringRef(Info.Name, SubSection.GetStream());
break;
case wasm::WASM_SYMBOL_TYPE_DATA:
writeStringRef(Info.Name, SubSection.GetStream());
if ((Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) == 0) {
encodeULEB128(Info.DataRef.Segment, SubSection.GetStream());
encodeULEB128(Info.DataRef.Offset, SubSection.GetStream());
encodeULEB128(Info.DataRef.Size, SubSection.GetStream());
}
break;
default:
llvm_unreachable("unexpected kind");
}
}
SubSection.Done();
@ -171,7 +194,7 @@ int WasmWriter::writeSectionContent(raw_ostream &OS, WasmYAML::LinkingSection &S
encodeULEB128(Section.InitFunctions.size(), SubSection.GetStream());
for (const WasmYAML::InitFunction &Func : Section.InitFunctions) {
encodeULEB128(Func.Priority, SubSection.GetStream());
encodeULEB128(Func.FunctionIndex, SubSection.GetStream());
encodeULEB128(Func.Symbol, SubSection.GetStream());
}
SubSection.Done();
}