[llvm] [Dwarf] Support `__ptrauth` qualifier in metadata nodes (PR #82363)
Daniil Kovalev via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 20 14:47:03 PST 2024
https://github.com/kovdan01 updated https://github.com/llvm/llvm-project/pull/82363
>From 448c90801db6ca11e09a76bc9b8487289e3e506c Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <dkovalev at accesssoftek.com>
Date: Tue, 20 Feb 2024 17:47:29 +0300
Subject: [PATCH 1/4] [Dwarf] Support `__ptrauth` qualifier in metadata nodes
Emit `__ptrauth`-qualified types as `DIDerivedType` metadata nodes in IR with
tag `DW_TAG_LLVM_ptrauth_type`, baseType referring to the type which has the
qualifier applied, and the following parameters representing the signing
schema:
- `ptrAuthKey` (integer)
- `ptrAuthIsAddressDiscriminated` (boolean)
- `ptrAuthExtraDiscriminator` (integer)
- `ptrAuthIsaPointer` (boolean)
- `ptrAuthAuthenticatesNullValues` (boolean)
---
llvm/include/llvm/IR/DIBuilder.h | 7 ++
llvm/include/llvm/IR/DebugInfoMetadata.h | 136 +++++++++++++++++----
llvm/lib/AsmParser/LLParser.cpp | 23 +++-
llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 18 ++-
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 6 +-
llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp | 14 +++
llvm/lib/IR/AsmWriter.cpp | 11 ++
llvm/lib/IR/DIBuilder.cpp | 58 +++++----
llvm/lib/IR/DebugInfo.cpp | 6 +-
llvm/lib/IR/DebugInfoMetadata.cpp | 21 ++--
llvm/lib/IR/LLVMContextImpl.h | 15 ++-
llvm/lib/IR/Verifier.cpp | 1 +
llvm/test/Assembler/debug-info.ll | 16 ++-
llvm/test/DebugInfo/AArch64/ptrauth.ll | 70 +++++++++++
llvm/unittests/IR/MetadataTest.cpp | 85 +++++++++----
15 files changed, 387 insertions(+), 100 deletions(-)
create mode 100644 llvm/test/DebugInfo/AArch64/ptrauth.ll
diff --git a/llvm/include/llvm/IR/DIBuilder.h b/llvm/include/llvm/IR/DIBuilder.h
index edec161b397155..010dcbfdadcac2 100644
--- a/llvm/include/llvm/IR/DIBuilder.h
+++ b/llvm/include/llvm/IR/DIBuilder.h
@@ -262,6 +262,13 @@ namespace llvm {
std::optional<unsigned> DWARFAddressSpace = std::nullopt,
StringRef Name = "", DINodeArray Annotations = nullptr);
+ /// Create a __ptrauth qualifier.
+ DIDerivedType *createPtrAuthQualifiedType(DIType *FromTy, unsigned Key,
+ bool IsAddressDiscriminated,
+ unsigned ExtraDiscriminator,
+ bool IsaPointer,
+ bool authenticatesNullValues);
+
/// Create debugging information entry for a pointer to member.
/// \param PointeeTy Type pointed to by this pointer.
/// \param SizeInBits Size.
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index 156f6eb49253de..eec150636fff78 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -20,6 +20,7 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/iterator_range.h"
+#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/PseudoProbe.h"
@@ -745,7 +746,9 @@ class DIType : public DIScope {
unsigned getLine() const { return Line; }
uint64_t getSizeInBits() const { return SizeInBits; }
- uint32_t getAlignInBits() const { return SubclassData32; }
+ uint32_t getAlignInBits() const {
+ return (getTag() == dwarf::DW_TAG_LLVM_ptrauth_type ? 0 : SubclassData32);
+ }
uint32_t getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
uint64_t getOffsetInBits() const { return OffsetInBits; }
DIFlags getFlags() const { return Flags; }
@@ -972,6 +975,40 @@ class DIStringType : public DIType {
///
/// TODO: Split out members (inheritance, fields, methods, etc.).
class DIDerivedType : public DIType {
+public:
+ /// Pointer authentication (__ptrauth) metadata.
+ struct PtrAuthData {
+ union {
+ struct {
+ unsigned Key : 4;
+ unsigned IsAddressDiscriminated : 1;
+ unsigned ExtraDiscriminator : 16;
+ unsigned IsaPointer : 1;
+ unsigned AuthenticatesNullValues : 1;
+ } Data;
+ unsigned RawData;
+ } Payload;
+
+ PtrAuthData(unsigned FromRawData) { Payload.RawData = FromRawData; }
+ PtrAuthData(unsigned Key, bool IsDiscr, unsigned Discriminator,
+ bool IsaPointer, bool AuthenticatesNullValues) {
+ assert(Key < 16);
+ assert(Discriminator <= 0xffff);
+ Payload.Data.Key = Key;
+ Payload.Data.IsAddressDiscriminated = IsDiscr;
+ Payload.Data.ExtraDiscriminator = Discriminator;
+ Payload.Data.IsaPointer = IsaPointer;
+ Payload.Data.AuthenticatesNullValues = AuthenticatesNullValues;
+ }
+ bool operator==(struct PtrAuthData Other) const {
+ return Payload.RawData == Other.Payload.RawData;
+ }
+ bool operator!=(struct PtrAuthData Other) const {
+ return !(*this == Other);
+ }
+ };
+
+private:
friend class LLVMContextImpl;
friend class MDNode;
@@ -982,59 +1019,70 @@ class DIDerivedType : public DIType {
DIDerivedType(LLVMContext &C, StorageType Storage, unsigned Tag,
unsigned Line, uint64_t SizeInBits, uint32_t AlignInBits,
uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags,
ArrayRef<Metadata *> Ops)
: DIType(C, DIDerivedTypeKind, Storage, Tag, Line, SizeInBits,
AlignInBits, OffsetInBits, Flags, Ops),
- DWARFAddressSpace(DWARFAddressSpace) {}
+ DWARFAddressSpace(DWARFAddressSpace) {
+ if (PtrAuthData)
+ SubclassData32 = PtrAuthData->Payload.RawData;
+ }
~DIDerivedType() = default;
static DIDerivedType *
getImpl(LLVMContext &Context, unsigned Tag, StringRef Name, DIFile *File,
unsigned Line, DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags,
Metadata *ExtraData, DINodeArray Annotations, StorageType Storage,
bool ShouldCreate = true) {
return getImpl(Context, Tag, getCanonicalMDString(Context, Name), File,
Line, Scope, BaseType, SizeInBits, AlignInBits, OffsetInBits,
- DWARFAddressSpace, Flags, ExtraData, Annotations.get(),
- Storage, ShouldCreate);
+ DWARFAddressSpace, PtrAuthData, Flags, ExtraData,
+ Annotations.get(), Storage, ShouldCreate);
}
static DIDerivedType *
getImpl(LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
unsigned Line, Metadata *Scope, Metadata *BaseType,
uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags,
Metadata *ExtraData, Metadata *Annotations, StorageType Storage,
bool ShouldCreate = true);
TempDIDerivedType cloneImpl() const {
- return getTemporary(
- getContext(), getTag(), getName(), getFile(), getLine(), getScope(),
- getBaseType(), getSizeInBits(), getAlignInBits(), getOffsetInBits(),
- getDWARFAddressSpace(), getFlags(), getExtraData(), getAnnotations());
+ return getTemporary(getContext(), getTag(), getName(), getFile(), getLine(),
+ getScope(), getBaseType(), getSizeInBits(),
+ getAlignInBits(), getOffsetInBits(),
+ getDWARFAddressSpace(), getPtrAuthData(), getFlags(),
+ getExtraData(), getAnnotations());
}
public:
- DEFINE_MDNODE_GET(
- DIDerivedType,
- (unsigned Tag, MDString *Name, Metadata *File, unsigned Line,
- Metadata *Scope, Metadata *BaseType, uint64_t SizeInBits,
- uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
- Metadata *ExtraData = nullptr, Metadata *Annotations = nullptr),
- (Tag, Name, File, Line, Scope, BaseType, SizeInBits, AlignInBits,
- OffsetInBits, DWARFAddressSpace, Flags, ExtraData, Annotations))
+ DEFINE_MDNODE_GET(DIDerivedType,
+ (unsigned Tag, MDString *Name, Metadata *File,
+ unsigned Line, Metadata *Scope, Metadata *BaseType,
+ uint64_t SizeInBits, uint32_t AlignInBits,
+ uint64_t OffsetInBits,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags,
+ Metadata *ExtraData = nullptr,
+ Metadata *Annotations = nullptr),
+ (Tag, Name, File, Line, Scope, BaseType, SizeInBits,
+ AlignInBits, OffsetInBits, DWARFAddressSpace, PtrAuthData,
+ Flags, ExtraData, Annotations))
DEFINE_MDNODE_GET(DIDerivedType,
(unsigned Tag, StringRef Name, DIFile *File, unsigned Line,
DIScope *Scope, DIType *BaseType, uint64_t SizeInBits,
uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags,
Metadata *ExtraData = nullptr,
DINodeArray Annotations = nullptr),
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
- AlignInBits, OffsetInBits, DWARFAddressSpace, Flags,
- ExtraData, Annotations))
+ AlignInBits, OffsetInBits, DWARFAddressSpace, PtrAuthData,
+ Flags, ExtraData, Annotations))
TempDIDerivedType clone() const { return cloneImpl(); }
@@ -1048,6 +1096,48 @@ class DIDerivedType : public DIType {
return DWARFAddressSpace;
}
+ std::optional<PtrAuthData> getPtrAuthData() const {
+ return getTag() == dwarf::DW_TAG_LLVM_ptrauth_type
+ ? std::optional<PtrAuthData>(PtrAuthData(SubclassData32))
+ : std::nullopt;
+ }
+
+ /// \returns The PointerAuth key.
+ std::optional<unsigned> getPtrAuthKey() const {
+ if (auto PtrAuthData = getPtrAuthData())
+ return (unsigned)PtrAuthData->Payload.Data.Key;
+ else
+ return std::nullopt;
+ }
+ /// \returns The PointerAuth address discrimination bit.
+ std::optional<bool> isPtrAuthAddressDiscriminated() const {
+ if (auto PtrAuthData = getPtrAuthData())
+ return (bool)PtrAuthData->Payload.Data.IsAddressDiscriminated;
+ else
+ return std::nullopt;
+ }
+ /// \returns The PointerAuth extra discriminator.
+ std::optional<unsigned> getPtrAuthExtraDiscriminator() const {
+ if (auto PtrAuthData = getPtrAuthData())
+ return (unsigned)PtrAuthData->Payload.Data.ExtraDiscriminator;
+ else
+ return std::nullopt;
+ }
+ /// \returns The PointerAuth IsaPointer bit.
+ std::optional<bool> isPtrAuthIsaPointer() const {
+ if (auto PtrAuthData = getPtrAuthData())
+ return (bool)PtrAuthData->Payload.Data.IsaPointer;
+ else
+ return std::nullopt;
+ }
+ /// \returns The PointerAuth authenticates null values bit.
+ std::optional<bool> getPtrAuthAuthenticatesNullValues() const {
+ if (auto PtrAuthData = getPtrAuthData())
+ return (bool)PtrAuthData->Payload.Data.AuthenticatesNullValues;
+ else
+ return std::nullopt;
+ }
+
/// Get extra data associated with this derived type.
///
/// Class type for pointer-to-members, objective-c property node for ivars,
diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index a91e2f690999e0..e91abaf0780a3d 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -5130,7 +5130,11 @@ bool LLParser::parseDIStringType(MDNode *&Result, bool IsDistinct) {
/// ::= !DIDerivedType(tag: DW_TAG_pointer_type, name: "int", file: !0,
/// line: 7, scope: !1, baseType: !2, size: 32,
/// align: 32, offset: 0, flags: 0, extraData: !3,
-/// dwarfAddressSpace: 3)
+/// dwarfAddressSpace: 3, ptrAuthKey: 1,
+/// ptrAuthIsAddressDiscriminated: true,
+/// ptrAuthExtraDiscriminator: 0x1234,
+/// ptrAuthIsaPointer: 1, ptrAuthAuthenticatesNullValues:1
+/// )
bool LLParser::parseDIDerivedType(MDNode *&Result, bool IsDistinct) {
#define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \
REQUIRED(tag, DwarfTagField, ); \
@@ -5145,19 +5149,30 @@ bool LLParser::parseDIDerivedType(MDNode *&Result, bool IsDistinct) {
OPTIONAL(flags, DIFlagField, ); \
OPTIONAL(extraData, MDField, ); \
OPTIONAL(dwarfAddressSpace, MDUnsignedField, (UINT32_MAX, UINT32_MAX)); \
- OPTIONAL(annotations, MDField, );
+ OPTIONAL(annotations, MDField, ); \
+ OPTIONAL(ptrAuthKey, MDUnsignedField, (0, 7)); \
+ OPTIONAL(ptrAuthIsAddressDiscriminated, MDBoolField, ); \
+ OPTIONAL(ptrAuthExtraDiscriminator, MDUnsignedField, (0, 0xffff)); \
+ OPTIONAL(ptrAuthIsaPointer, MDBoolField, ); \
+ OPTIONAL(ptrAuthAuthenticatesNullValues, MDBoolField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
std::optional<unsigned> DWARFAddressSpace;
if (dwarfAddressSpace.Val != UINT32_MAX)
DWARFAddressSpace = dwarfAddressSpace.Val;
+ std::optional<DIDerivedType::PtrAuthData> PtrAuthData;
+ if (ptrAuthKey.Val)
+ PtrAuthData = DIDerivedType::PtrAuthData(
+ (unsigned)ptrAuthKey.Val, ptrAuthIsAddressDiscriminated.Val,
+ (unsigned)ptrAuthExtraDiscriminator.Val, ptrAuthIsaPointer.Val,
+ ptrAuthAuthenticatesNullValues.Val);
Result = GET_OR_DISTINCT(DIDerivedType,
(Context, tag.Val, name.Val, file.Val, line.Val,
scope.Val, baseType.Val, size.Val, align.Val,
- offset.Val, DWARFAddressSpace, flags.Val,
- extraData.Val, annotations.Val));
+ offset.Val, DWARFAddressSpace, PtrAuthData,
+ flags.Val, extraData.Val, annotations.Val));
return false;
}
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp
index 770eb83af17f9b..bdc2db82dfbe0e 100644
--- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp
+++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp
@@ -1556,7 +1556,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
break;
}
case bitc::METADATA_DERIVED_TYPE: {
- if (Record.size() < 12 || Record.size() > 14)
+ if (Record.size() < 12 || Record.size() > 15)
return error("Invalid record");
// DWARF address space is encoded as N->getDWARFAddressSpace() + 1. 0 means
@@ -1566,8 +1566,18 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
DWARFAddressSpace = Record[12] - 1;
Metadata *Annotations = nullptr;
- if (Record.size() > 13 && Record[13])
- Annotations = getMDOrNull(Record[13]);
+ std::optional<DIDerivedType::PtrAuthData> PtrAuthData;
+
+ // Only look for annotations/ptrauth if both are allocated.
+ // If not, we can't tell which was intended to be embedded, as both ptrauth
+ // and annotations have been expected at Record[13] at various times.
+ if (Record.size() > 14) {
+ if (Record[13])
+ Annotations = getMDOrNull(Record[13]);
+
+ if (Record[14])
+ PtrAuthData = DIDerivedType::PtrAuthData(Record[14]);
+ }
IsDistinct = Record[0];
DINode::DIFlags Flags = static_cast<DINode::DIFlags>(Record[10]);
@@ -1577,7 +1587,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
getMDOrNull(Record[3]), Record[4],
getDITypeRefOrNull(Record[5]),
getDITypeRefOrNull(Record[6]), Record[7], Record[8],
- Record[9], DWARFAddressSpace, Flags,
+ Record[9], DWARFAddressSpace, PtrAuthData, Flags,
getDITypeRefOrNull(Record[11]), Annotations)),
NextMetadataNo);
NextMetadataNo++;
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 13be0b0c3307fb..16963e408ed4d9 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -1801,9 +1801,13 @@ void ModuleBitcodeWriter::writeDIDerivedType(const DIDerivedType *N,
Record.push_back(*DWARFAddressSpace + 1);
else
Record.push_back(0);
-
Record.push_back(VE.getMetadataOrNullID(N->getAnnotations().get()));
+ if (auto PtrAuthData = N->getPtrAuthData())
+ Record.push_back(PtrAuthData->Payload.RawData);
+ else
+ Record.push_back(0);
+
Stream.EmitRecord(bitc::METADATA_DERIVED_TYPE, Record, Abbrev);
Record.clear();
}
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index d462859e489465..ae0226934804f7 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -803,6 +803,20 @@ void DwarfUnit::constructTypeDIE(DIE &Buffer, const DIDerivedType *DTy) {
if (DTy->getDWARFAddressSpace())
addUInt(Buffer, dwarf::DW_AT_address_class, dwarf::DW_FORM_data4,
*DTy->getDWARFAddressSpace());
+ if (auto Key = DTy->getPtrAuthKey())
+ addUInt(Buffer, dwarf::DW_AT_LLVM_ptrauth_key, dwarf::DW_FORM_data1, *Key);
+ if (auto AddrDisc = DTy->isPtrAuthAddressDiscriminated())
+ if (AddrDisc.value())
+ addFlag(Buffer, dwarf::DW_AT_LLVM_ptrauth_address_discriminated);
+ if (auto Disc = DTy->getPtrAuthExtraDiscriminator())
+ addUInt(Buffer, dwarf::DW_AT_LLVM_ptrauth_extra_discriminator,
+ dwarf::DW_FORM_data2, *Disc);
+ if (auto IsaPointer = DTy->isPtrAuthIsaPointer())
+ if (*IsaPointer)
+ addFlag(Buffer, dwarf::DW_AT_LLVM_ptrauth_isa_pointer);
+ if (auto AuthenticatesNullValues = DTy->getPtrAuthAuthenticatesNullValues())
+ if (*AuthenticatesNullValues)
+ addFlag(Buffer, dwarf::DW_AT_LLVM_ptrauth_authenticates_null_values);
}
void DwarfUnit::constructSubprogramArguments(DIE &Buffer, DITypeRefArray Args) {
diff --git a/llvm/lib/IR/AsmWriter.cpp b/llvm/lib/IR/AsmWriter.cpp
index d3c64a57f7fdfd..4b5709ba8173a7 100644
--- a/llvm/lib/IR/AsmWriter.cpp
+++ b/llvm/lib/IR/AsmWriter.cpp
@@ -2104,6 +2104,17 @@ static void writeDIDerivedType(raw_ostream &Out, const DIDerivedType *N,
Printer.printInt("dwarfAddressSpace", *DWARFAddressSpace,
/* ShouldSkipZero */ false);
Printer.printMetadata("annotations", N->getRawAnnotations());
+ if (auto Key = N->getPtrAuthKey())
+ Printer.printInt("ptrAuthKey", *Key);
+ if (auto AddrDisc = N->isPtrAuthAddressDiscriminated())
+ Printer.printBool("ptrAuthIsAddressDiscriminated", *AddrDisc);
+ if (auto Disc = N->getPtrAuthExtraDiscriminator())
+ Printer.printInt("ptrAuthExtraDiscriminator", *Disc);
+ if (auto IsaPointer = N->isPtrAuthIsaPointer())
+ Printer.printBool("ptrAuthIsaPointer", *IsaPointer);
+ if (auto AuthenticatesNullValues = N->getPtrAuthAuthenticatesNullValues())
+ Printer.printBool("ptrAuthAuthenticatesNullValues",
+ *AuthenticatesNullValues);
Out << ")";
}
diff --git a/llvm/lib/IR/DIBuilder.cpp b/llvm/lib/IR/DIBuilder.cpp
index 62efaba025344b..2842cb15e78fb3 100644
--- a/llvm/lib/IR/DIBuilder.cpp
+++ b/llvm/lib/IR/DIBuilder.cpp
@@ -296,7 +296,20 @@ DIStringType *DIBuilder::createStringType(StringRef Name,
DIDerivedType *DIBuilder::createQualifiedType(unsigned Tag, DIType *FromTy) {
return DIDerivedType::get(VMContext, Tag, "", nullptr, 0, nullptr, FromTy, 0,
- 0, 0, std::nullopt, DINode::FlagZero);
+ 0, 0, std::nullopt, std::nullopt, DINode::FlagZero);
+}
+
+DIDerivedType *DIBuilder::createPtrAuthQualifiedType(
+ DIType *FromTy, unsigned Key, bool IsAddressDiscriminated,
+ unsigned ExtraDiscriminator, bool IsaPointer,
+ bool AuthenticatesNullValues) {
+ return DIDerivedType::get(
+ VMContext, dwarf::DW_TAG_LLVM_ptrauth_type, "", nullptr, 0, nullptr,
+ FromTy, 0, 0, 0, std::nullopt,
+ std::optional<DIDerivedType::PtrAuthData>({Key, IsAddressDiscriminated,
+ ExtraDiscriminator, IsaPointer,
+ AuthenticatesNullValues}),
+ DINode::FlagZero);
}
DIDerivedType *
@@ -307,8 +320,8 @@ DIBuilder::createPointerType(DIType *PointeeTy, uint64_t SizeInBits,
// FIXME: Why is there a name here?
return DIDerivedType::get(VMContext, dwarf::DW_TAG_pointer_type, Name,
nullptr, 0, nullptr, PointeeTy, SizeInBits,
- AlignInBits, 0, DWARFAddressSpace, DINode::FlagZero,
- nullptr, Annotations);
+ AlignInBits, 0, DWARFAddressSpace, std::nullopt,
+ DINode::FlagZero, nullptr, Annotations);
}
DIDerivedType *DIBuilder::createMemberPointerType(DIType *PointeeTy,
@@ -318,7 +331,8 @@ DIDerivedType *DIBuilder::createMemberPointerType(DIType *PointeeTy,
DINode::DIFlags Flags) {
return DIDerivedType::get(VMContext, dwarf::DW_TAG_ptr_to_member_type, "",
nullptr, 0, nullptr, PointeeTy, SizeInBits,
- AlignInBits, 0, std::nullopt, Flags, Base);
+ AlignInBits, 0, std::nullopt, std::nullopt, Flags,
+ Base);
}
DIDerivedType *
@@ -327,7 +341,7 @@ DIBuilder::createReferenceType(unsigned Tag, DIType *RTy, uint64_t SizeInBits,
std::optional<unsigned> DWARFAddressSpace) {
assert(RTy && "Unable to create reference type");
return DIDerivedType::get(VMContext, Tag, "", nullptr, 0, nullptr, RTy,
- SizeInBits, AlignInBits, 0, DWARFAddressSpace,
+ SizeInBits, AlignInBits, 0, DWARFAddressSpace, {},
DINode::FlagZero);
}
@@ -338,15 +352,16 @@ DIDerivedType *DIBuilder::createTypedef(DIType *Ty, StringRef Name,
DINodeArray Annotations) {
return DIDerivedType::get(VMContext, dwarf::DW_TAG_typedef, Name, File,
LineNo, getNonCompileUnitScope(Context), Ty, 0,
- AlignInBits, 0, std::nullopt, Flags, nullptr,
- Annotations);
+ AlignInBits, 0, std::nullopt, std::nullopt, Flags,
+ nullptr, Annotations);
}
DIDerivedType *DIBuilder::createFriend(DIType *Ty, DIType *FriendTy) {
assert(Ty && "Invalid type!");
assert(FriendTy && "Invalid friend type!");
return DIDerivedType::get(VMContext, dwarf::DW_TAG_friend, "", nullptr, 0, Ty,
- FriendTy, 0, 0, 0, std::nullopt, DINode::FlagZero);
+ FriendTy, 0, 0, 0, std::nullopt, std::nullopt,
+ DINode::FlagZero);
}
DIDerivedType *DIBuilder::createInheritance(DIType *Ty, DIType *BaseTy,
@@ -358,7 +373,7 @@ DIDerivedType *DIBuilder::createInheritance(DIType *Ty, DIType *BaseTy,
ConstantInt::get(IntegerType::get(VMContext, 32), VBPtrOffset));
return DIDerivedType::get(VMContext, dwarf::DW_TAG_inheritance, "", nullptr,
0, Ty, BaseTy, 0, 0, BaseOffset, std::nullopt,
- Flags, ExtraData);
+ std::nullopt, Flags, ExtraData);
}
DIDerivedType *DIBuilder::createMemberType(
@@ -368,7 +383,7 @@ DIDerivedType *DIBuilder::createMemberType(
return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
LineNumber, getNonCompileUnitScope(Scope), Ty,
SizeInBits, AlignInBits, OffsetInBits, std::nullopt,
- Flags, nullptr, Annotations);
+ std::nullopt, Flags, nullptr, Annotations);
}
static ConstantAsMetadata *getConstantOrNull(Constant *C) {
@@ -381,10 +396,10 @@ DIDerivedType *DIBuilder::createVariantMemberType(
DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
Constant *Discriminant, DINode::DIFlags Flags, DIType *Ty) {
- return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
- LineNumber, getNonCompileUnitScope(Scope), Ty,
- SizeInBits, AlignInBits, OffsetInBits, std::nullopt,
- Flags, getConstantOrNull(Discriminant));
+ return DIDerivedType::get(
+ VMContext, dwarf::DW_TAG_member, Name, File, LineNumber,
+ getNonCompileUnitScope(Scope), Ty, SizeInBits, AlignInBits, OffsetInBits,
+ std::nullopt, std::nullopt, Flags, getConstantOrNull(Discriminant));
}
DIDerivedType *DIBuilder::createBitFieldMemberType(
@@ -395,7 +410,7 @@ DIDerivedType *DIBuilder::createBitFieldMemberType(
return DIDerivedType::get(
VMContext, dwarf::DW_TAG_member, Name, File, LineNumber,
getNonCompileUnitScope(Scope), Ty, SizeInBits, /*AlignInBits=*/0,
- OffsetInBits, std::nullopt, Flags,
+ OffsetInBits, std::nullopt, std::nullopt, Flags,
ConstantAsMetadata::get(ConstantInt::get(IntegerType::get(VMContext, 64),
StorageOffsetInBits)),
Annotations);
@@ -409,7 +424,8 @@ DIBuilder::createStaticMemberType(DIScope *Scope, StringRef Name, DIFile *File,
Flags |= DINode::FlagStaticMember;
return DIDerivedType::get(VMContext, Tag, Name, File, LineNumber,
getNonCompileUnitScope(Scope), Ty, 0, AlignInBits,
- 0, std::nullopt, Flags, getConstantOrNull(Val));
+ 0, std::nullopt, std::nullopt, Flags,
+ getConstantOrNull(Val));
}
DIDerivedType *
@@ -420,7 +436,7 @@ DIBuilder::createObjCIVar(StringRef Name, DIFile *File, unsigned LineNumber,
return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
LineNumber, getNonCompileUnitScope(File), Ty,
SizeInBits, AlignInBits, OffsetInBits, std::nullopt,
- Flags, PropertyNode);
+ std::nullopt, Flags, PropertyNode);
}
DIObjCProperty *
@@ -555,10 +571,10 @@ DIDerivedType *DIBuilder::createSetType(DIScope *Scope, StringRef Name,
DIFile *File, unsigned LineNo,
uint64_t SizeInBits,
uint32_t AlignInBits, DIType *Ty) {
- auto *R =
- DIDerivedType::get(VMContext, dwarf::DW_TAG_set_type, Name, File, LineNo,
- getNonCompileUnitScope(Scope), Ty, SizeInBits,
- AlignInBits, 0, std::nullopt, DINode::FlagZero);
+ auto *R = DIDerivedType::get(VMContext, dwarf::DW_TAG_set_type, Name, File,
+ LineNo, getNonCompileUnitScope(Scope), Ty,
+ SizeInBits, AlignInBits, 0, std::nullopt,
+ std::nullopt, DINode::FlagZero);
trackIfUnresolved(R);
return R;
}
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index eaa5cb36a49c14..81e8d48eef66eb 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -1334,9 +1334,9 @@ LLVMMetadataRef LLVMDIBuilderCreatePointerType(
LLVMDIBuilderRef Builder, LLVMMetadataRef PointeeTy,
uint64_t SizeInBits, uint32_t AlignInBits, unsigned AddressSpace,
const char *Name, size_t NameLen) {
- return wrap(unwrap(Builder)->createPointerType(unwrapDI<DIType>(PointeeTy),
- SizeInBits, AlignInBits,
- AddressSpace, {Name, NameLen}));
+ return wrap(unwrap(Builder)->createPointerType(
+ unwrapDI<DIType>(PointeeTy), SizeInBits, AlignInBits, AddressSpace,
+ {Name, NameLen}));
}
LLVMMetadataRef LLVMDIBuilderCreateStructType(
diff --git a/llvm/lib/IR/DebugInfoMetadata.cpp b/llvm/lib/IR/DebugInfoMetadata.cpp
index 28f96653d815b5..2b799eea7d56fe 100644
--- a/llvm/lib/IR/DebugInfoMetadata.cpp
+++ b/llvm/lib/IR/DebugInfoMetadata.cpp
@@ -731,23 +731,22 @@ Constant *DIDerivedType::getDiscriminantValue() const {
return nullptr;
}
-DIDerivedType *
-DIDerivedType::getImpl(LLVMContext &Context, unsigned Tag, MDString *Name,
- Metadata *File, unsigned Line, Metadata *Scope,
- Metadata *BaseType, uint64_t SizeInBits,
- uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, DIFlags Flags,
- Metadata *ExtraData, Metadata *Annotations,
- StorageType Storage, bool ShouldCreate) {
+DIDerivedType *DIDerivedType::getImpl(
+ LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
+ unsigned Line, Metadata *Scope, Metadata *BaseType, uint64_t SizeInBits,
+ uint32_t AlignInBits, uint64_t OffsetInBits,
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<PtrAuthData> PtrAuthData, DIFlags Flags, Metadata *ExtraData,
+ Metadata *Annotations, StorageType Storage, bool ShouldCreate) {
assert(isCanonical(Name) && "Expected canonical MDString");
DEFINE_GETIMPL_LOOKUP(DIDerivedType,
(Tag, Name, File, Line, Scope, BaseType, SizeInBits,
- AlignInBits, OffsetInBits, DWARFAddressSpace, Flags,
- ExtraData, Annotations));
+ AlignInBits, OffsetInBits, DWARFAddressSpace,
+ PtrAuthData, Flags, ExtraData, Annotations));
Metadata *Ops[] = {File, Scope, Name, BaseType, ExtraData, Annotations};
DEFINE_GETIMPL_STORE(DIDerivedType,
(Tag, Line, SizeInBits, AlignInBits, OffsetInBits,
- DWARFAddressSpace, Flags),
+ DWARFAddressSpace, PtrAuthData, Flags),
Ops);
}
diff --git a/llvm/lib/IR/LLVMContextImpl.h b/llvm/lib/IR/LLVMContextImpl.h
index 6a20291344989d..3a6d48c03a366b 100644
--- a/llvm/lib/IR/LLVMContextImpl.h
+++ b/llvm/lib/IR/LLVMContextImpl.h
@@ -539,6 +539,7 @@ template <> struct MDNodeKeyImpl<DIDerivedType> {
uint64_t OffsetInBits;
uint32_t AlignInBits;
std::optional<unsigned> DWARFAddressSpace;
+ std::optional<DIDerivedType::PtrAuthData> PtrAuthData;
unsigned Flags;
Metadata *ExtraData;
Metadata *Annotations;
@@ -546,18 +547,21 @@ template <> struct MDNodeKeyImpl<DIDerivedType> {
MDNodeKeyImpl(unsigned Tag, MDString *Name, Metadata *File, unsigned Line,
Metadata *Scope, Metadata *BaseType, uint64_t SizeInBits,
uint32_t AlignInBits, uint64_t OffsetInBits,
- std::optional<unsigned> DWARFAddressSpace, unsigned Flags,
- Metadata *ExtraData, Metadata *Annotations)
+ std::optional<unsigned> DWARFAddressSpace,
+ std::optional<DIDerivedType::PtrAuthData> PtrAuthData,
+ unsigned Flags, Metadata *ExtraData, Metadata *Annotations)
: Tag(Tag), Name(Name), File(File), Line(Line), Scope(Scope),
BaseType(BaseType), SizeInBits(SizeInBits), OffsetInBits(OffsetInBits),
AlignInBits(AlignInBits), DWARFAddressSpace(DWARFAddressSpace),
- Flags(Flags), ExtraData(ExtraData), Annotations(Annotations) {}
+ PtrAuthData(PtrAuthData), Flags(Flags), ExtraData(ExtraData),
+ Annotations(Annotations) {}
MDNodeKeyImpl(const DIDerivedType *N)
: Tag(N->getTag()), Name(N->getRawName()), File(N->getRawFile()),
Line(N->getLine()), Scope(N->getRawScope()),
BaseType(N->getRawBaseType()), SizeInBits(N->getSizeInBits()),
OffsetInBits(N->getOffsetInBits()), AlignInBits(N->getAlignInBits()),
- DWARFAddressSpace(N->getDWARFAddressSpace()), Flags(N->getFlags()),
+ DWARFAddressSpace(N->getDWARFAddressSpace()),
+ PtrAuthData(N->getPtrAuthData()), Flags(N->getFlags()),
ExtraData(N->getRawExtraData()), Annotations(N->getRawAnnotations()) {}
bool isKeyOf(const DIDerivedType *RHS) const {
@@ -568,7 +572,8 @@ template <> struct MDNodeKeyImpl<DIDerivedType> {
AlignInBits == RHS->getAlignInBits() &&
OffsetInBits == RHS->getOffsetInBits() &&
DWARFAddressSpace == RHS->getDWARFAddressSpace() &&
- Flags == RHS->getFlags() && ExtraData == RHS->getRawExtraData() &&
+ PtrAuthData == RHS->getPtrAuthData() && Flags == RHS->getFlags() &&
+ ExtraData == RHS->getRawExtraData() &&
Annotations == RHS->getRawAnnotations();
}
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index b04d39c700a8f5..fa0d27f5aa178f 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -1181,6 +1181,7 @@ void Verifier::visitDIDerivedType(const DIDerivedType &N) {
N.getTag() == dwarf::DW_TAG_volatile_type ||
N.getTag() == dwarf::DW_TAG_restrict_type ||
N.getTag() == dwarf::DW_TAG_atomic_type ||
+ N.getTag() == dwarf::DW_TAG_LLVM_ptrauth_type ||
N.getTag() == dwarf::DW_TAG_member ||
(N.getTag() == dwarf::DW_TAG_variable && N.isStaticMember()) ||
N.getTag() == dwarf::DW_TAG_inheritance ||
diff --git a/llvm/test/Assembler/debug-info.ll b/llvm/test/Assembler/debug-info.ll
index 419623a2cb7d14..06144b261373f4 100644
--- a/llvm/test/Assembler/debug-info.ll
+++ b/llvm/test/Assembler/debug-info.ll
@@ -1,8 +1,8 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
-; CHECK: !named = !{!0, !0, !1, !2, !3, !4, !5, !6, !7, !8, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38, !39}
-!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38, !39, !40, !41, !42}
+; CHECK: !named = !{!0, !0, !1, !2, !3, !4, !5, !6, !7, !8, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38, !39, !40, !41, !42, !43}
+!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38, !39, !40, !41, !42, !43, !44, !45, !46}
; CHECK: !0 = !DISubrange(count: 3, lowerBound: 0)
; CHECK-NEXT: !1 = !DISubrange(count: 3, lowerBound: 4)
@@ -99,3 +99,15 @@
; CHECK-NEXT: !39 = !DIBasicType(name: "u64.le", size: 64, align: 1, encoding: DW_ATE_unsigned, flags: DIFlagLittleEndian)
!41 = !DIBasicType(name: "u64.be", size: 64, align: 1, encoding: DW_ATE_unsigned, flags: DIFlagBigEndian)
!42 = !DIBasicType(name: "u64.le", size: 64, align: 1, encoding: DW_ATE_unsigned, flags: DIFlagLittleEndian)
+
+; CHECK: !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !13, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: false, ptrAuthAuthenticatesNullValues: false)
+!43 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !15, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234)
+
+; CHECK: !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !13, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: true, ptrAuthAuthenticatesNullValues: false)
+!44 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !15, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: true)
+
+; CHECK: !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !13, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: false, ptrAuthAuthenticatesNullValues: true)
+!45 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !15, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthAuthenticatesNullValues: true)
+
+; CHECK: !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !13, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: true, ptrAuthAuthenticatesNullValues: true)
+!46 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !15, ptrAuthKey: 2, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1234, ptrAuthIsaPointer: true, ptrAuthAuthenticatesNullValues: true)
diff --git a/llvm/test/DebugInfo/AArch64/ptrauth.ll b/llvm/test/DebugInfo/AArch64/ptrauth.ll
new file mode 100644
index 00000000000000..4f84fe4f962977
--- /dev/null
+++ b/llvm/test/DebugInfo/AArch64/ptrauth.ll
@@ -0,0 +1,70 @@
+; RUN: llc %s -filetype=obj -mtriple arm64e-apple-darwin -o - \
+; RUN: | llvm-dwarfdump - | FileCheck %s
+
+; CHECK: DW_AT_type (0x{{0+}}[[TY:.*]] "void *__ptrauth(4, 0, 0x04d2)")
+; CHECK: 0x{{0+}}[[TY]]: DW_TAG_LLVM_ptrauth_type
+; CHECK-NEXT: DW_AT_type {{.*}}"void *"
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_key (0x04)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_extra_discriminator (0x04d2)
+
+; CHECK: DW_AT_type (0x{{0+}}[[TY:.*]] "void *__ptrauth(4, 1, 0x04d3)")
+; CHECK: 0x{{0+}}[[TY]]: DW_TAG_LLVM_ptrauth_type
+; CHECK-NEXT: DW_AT_type {{.*}}"void *"
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_key (0x04)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_address_discriminated (true)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_extra_discriminator (0x04d3)
+
+; CHECK: DW_AT_type (0x{{0+}}[[TY:.*]] "void *__ptrauth(4, 1, 0x04d4, "isa-pointer")")
+; CHECK: 0x{{0+}}[[TY]]: DW_TAG_LLVM_ptrauth_type
+; CHECK-NEXT: DW_AT_type {{.*}}"void *"
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_key (0x04)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_address_discriminated (true)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_extra_discriminator (0x04d4)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_isa_pointer (true)
+
+; CHECK: DW_AT_type (0x{{0+}}[[TY:.*]] "void *__ptrauth(4, 1, 0x04d5, "authenticates-null-values")")
+; CHECK: 0x{{0+}}[[TY]]: DW_TAG_LLVM_ptrauth_type
+; CHECK-NEXT: DW_AT_type {{.*}}"void *"
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_key (0x04)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_address_discriminated (true)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_extra_discriminator (0x04d5)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_authenticates_null_values (true)
+
+; CHECK: DW_AT_type (0x{{0+}}[[TY:.*]] "void *__ptrauth(4, 1, 0x04d6, "isa-pointer,authenticates-null-values")")
+; CHECK: 0x{{0+}}[[TY]]: DW_TAG_LLVM_ptrauth_type
+; CHECK-NEXT: DW_AT_type {{.*}}"void *"
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_key (0x04)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_address_discriminated (true)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_extra_discriminator (0x04d6)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_isa_pointer (true)
+; CHECK-NEXT: DW_AT_LLVM_ptrauth_authenticates_null_values (true)
+
+target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
+
+ at p = common global i8* null, align 8, !dbg !0
+
+!llvm.dbg.cu = !{!10}
+!llvm.module.flags = !{!19, !20}
+
+!0 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
+!1 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())
+!2 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
+!3 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression())
+!4 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression())
+!5 = distinct !DIGlobalVariable(name: "p1", scope: !10, file: !11, line: 1, type: !14, isLocal: false, isDefinition: true)
+!6 = distinct !DIGlobalVariable(name: "p2", scope: !10, file: !11, line: 1, type: !15, isLocal: false, isDefinition: true)
+!7 = distinct !DIGlobalVariable(name: "p3", scope: !10, file: !11, line: 1, type: !16, isLocal: false, isDefinition: true)
+!8 = distinct !DIGlobalVariable(name: "p4", scope: !10, file: !11, line: 1, type: !17, isLocal: false, isDefinition: true)
+!9 = distinct !DIGlobalVariable(name: "p5", scope: !10, file: !11, line: 1, type: !18, isLocal: false, isDefinition: true)
+!10 = distinct !DICompileUnit(language: DW_LANG_C99, file: !11, emissionKind: FullDebug, globals: !13)
+!11 = !DIFile(filename: "/tmp/p.c", directory: "/")
+!12 = !{}
+!13 = !{!0,!1,!2,!3,!4}
+!14 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !21, ptrAuthKey: 4, ptrAuthIsAddressDiscriminated: false, ptrAuthExtraDiscriminator: 1234)
+!15 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !21, ptrAuthKey: 4, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1235)
+!16 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !21, ptrAuthKey: 4, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1236, ptrAuthIsaPointer: true)
+!17 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !21, ptrAuthKey: 4, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1237, ptrAuthAuthenticatesNullValues: true)
+!18 = !DIDerivedType(tag: DW_TAG_LLVM_ptrauth_type, baseType: !21, ptrAuthKey: 4, ptrAuthIsAddressDiscriminated: true, ptrAuthExtraDiscriminator: 1238, ptrAuthIsaPointer: true, ptrAuthAuthenticatesNullValues: true)
+!19 = !{i32 2, !"Dwarf Version", i32 4}
+!20 = !{i32 2, !"Debug Info Version", i32 3}
+!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null)
diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index 767dd1a59d2b9e..20d4090135dd43 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -106,7 +106,7 @@ class MetadataTest : public testing::Test {
DIType *getDerivedType() {
return DIDerivedType::getDistinct(
Context, dwarf::DW_TAG_pointer_type, "", nullptr, 0, nullptr,
- getBasicType("basictype"), 1, 2, 0, std::nullopt, DINode::FlagZero);
+ getBasicType("basictype"), 1, 2, 0, std::nullopt, {}, DINode::FlagZero);
}
Constant *getConstant() {
return ConstantInt::get(Type::getInt32Ty(Context), Counter++);
@@ -461,7 +461,7 @@ TEST_F(MDNodeTest, PrintTree) {
auto *StructTy = cast<DICompositeType>(getCompositeType());
DIType *PointerTy = DIDerivedType::getDistinct(
Context, dwarf::DW_TAG_pointer_type, "", nullptr, 0, nullptr, StructTy,
- 1, 2, 0, std::nullopt, DINode::FlagZero);
+ 1, 2, 0, std::nullopt, {}, DINode::FlagZero);
StructTy->replaceElements(MDTuple::get(Context, PointerTy));
auto *Var = DILocalVariable::get(Context, Scope, "foo", File,
@@ -1864,13 +1864,17 @@ TEST_F(DIDerivedTypeTest, get) {
DIType *BaseType = getBasicType("basic");
MDTuple *ExtraData = getTuple();
unsigned DWARFAddressSpace = 8;
+ DIDerivedType::PtrAuthData PtrAuthData(1, false, 1234, true, true);
+ DIDerivedType::PtrAuthData PtrAuthData2(1, false, 1234, true, false);
DINode::DIFlags Flags5 = static_cast<DINode::DIFlags>(5);
DINode::DIFlags Flags4 = static_cast<DINode::DIFlags>(4);
- auto *N =
- DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type, "something", File,
- 1, Scope, BaseType, 2, 3, 4, DWARFAddressSpace, Flags5,
- ExtraData);
+ auto *N = DIDerivedType::get(
+ Context, dwarf::DW_TAG_pointer_type, "something", File, 1, Scope,
+ BaseType, 2, 3, 4, DWARFAddressSpace, std::nullopt, Flags5, ExtraData);
+ auto *N1 = DIDerivedType::get(Context, dwarf::DW_TAG_LLVM_ptrauth_type, "",
+ File, 1, Scope, N, 2, 3, 4, DWARFAddressSpace,
+ PtrAuthData, Flags5, ExtraData);
EXPECT_EQ(dwarf::DW_TAG_pointer_type, N->getTag());
EXPECT_EQ("something", N->getName());
EXPECT_EQ(File, N->getFile());
@@ -1881,53 +1885,73 @@ TEST_F(DIDerivedTypeTest, get) {
EXPECT_EQ(3u, N->getAlignInBits());
EXPECT_EQ(4u, N->getOffsetInBits());
EXPECT_EQ(DWARFAddressSpace, *N->getDWARFAddressSpace());
+ EXPECT_EQ(std::nullopt, N->getPtrAuthData());
+ EXPECT_EQ(PtrAuthData, N1->getPtrAuthData());
+ EXPECT_NE(PtrAuthData2, N1->getPtrAuthData());
EXPECT_EQ(5u, N->getFlags());
EXPECT_EQ(ExtraData, N->getExtraData());
EXPECT_EQ(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_reference_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type, "else",
- File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ File, 1, Scope, BaseType, 2, 3, 4,
+ DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", getFile(), 1, Scope, BaseType, 2,
- 3, 4, DWARFAddressSpace, Flags5, ExtraData));
+ 3, 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 2, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, getSubprogram(),
- BaseType, 2, 3, 4, DWARFAddressSpace, Flags5,
- ExtraData));
+ BaseType, 2, 3, 4, DWARFAddressSpace,
+ std::nullopt, Flags5, ExtraData));
EXPECT_NE(N, DIDerivedType::get(
Context, dwarf::DW_TAG_pointer_type, "something", File, 1,
Scope, getBasicType("basic2"), 2, 3, 4, DWARFAddressSpace,
- Flags5, ExtraData));
+ std::nullopt, Flags5, ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 3, 3,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 2,
- 4, DWARFAddressSpace, Flags5, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 5, DWARFAddressSpace, Flags5, ExtraData));
+ 5, DWARFAddressSpace, std::nullopt, Flags5,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace + 1, Flags5, ExtraData));
+ 4, DWARFAddressSpace + 1, std::nullopt,
+ Flags5, ExtraData));
+ EXPECT_NE(N1,
+ DIDerivedType::get(Context, dwarf::DW_TAG_LLVM_ptrauth_type, "",
+ File, 1, Scope, N, 2, 3, 4, DWARFAddressSpace,
+ std::nullopt, Flags5, ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags4, ExtraData));
+ 4, DWARFAddressSpace, std::nullopt, Flags4,
+ ExtraData));
EXPECT_NE(N, DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type,
"something", File, 1, Scope, BaseType, 2, 3,
- 4, DWARFAddressSpace, Flags5, getTuple()));
+ 4, DWARFAddressSpace, std::nullopt, Flags5,
+ getTuple()));
TempDIDerivedType Temp = N->clone();
EXPECT_EQ(N, MDNode::replaceWithUniqued(std::move(Temp)));
+ TempDIDerivedType Temp1 = N1->clone();
+ EXPECT_EQ(N1, MDNode::replaceWithUniqued(std::move(Temp1)));
}
TEST_F(DIDerivedTypeTest, getWithLargeValues) {
@@ -1937,14 +1961,23 @@ TEST_F(DIDerivedTypeTest, getWithLargeValues) {
MDTuple *ExtraData = getTuple();
DINode::DIFlags Flags = static_cast<DINode::DIFlags>(5);
- auto *N = DIDerivedType::get(
- Context, dwarf::DW_TAG_pointer_type, "something", File, 1, Scope,
- BaseType, UINT64_MAX, UINT32_MAX - 1, UINT64_MAX - 2, UINT32_MAX - 3,
- Flags, ExtraData);
+ auto *N = DIDerivedType::get(Context, dwarf::DW_TAG_pointer_type, "something",
+ File, 1, Scope, BaseType, UINT64_MAX,
+ UINT32_MAX - 1, UINT64_MAX - 2, UINT32_MAX - 3,
+ std::nullopt, Flags, ExtraData);
EXPECT_EQ(UINT64_MAX, N->getSizeInBits());
EXPECT_EQ(UINT32_MAX - 1, N->getAlignInBits());
EXPECT_EQ(UINT64_MAX - 2, N->getOffsetInBits());
EXPECT_EQ(UINT32_MAX - 3, *N->getDWARFAddressSpace());
+
+ auto *N1 = DIDerivedType::get(
+ Context, dwarf::DW_TAG_LLVM_ptrauth_type, "", File, 1, Scope, N,
+ UINT64_MAX, UINT32_MAX - 1, UINT64_MAX - 2, UINT32_MAX - 3,
+ DIDerivedType::PtrAuthData(7, true, 0xffff, true, false), Flags,
+ ExtraData);
+ EXPECT_EQ(7U, *N1->getPtrAuthKey());
+ EXPECT_EQ(true, *N1->isPtrAuthAddressDiscriminated());
+ EXPECT_EQ(0xffffU, *N1->getPtrAuthExtraDiscriminator());
}
typedef MetadataTest DICompositeTypeTest;
@@ -4268,7 +4301,7 @@ TEST_F(MDTupleAllocationTest, Tracking2) {
#if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG) && !defined(GTEST_HAS_SEH)
typedef MetadataTest MDTupleAllocationDeathTest;
TEST_F(MDTupleAllocationDeathTest, ResizeRejected) {
- MDTuple *A = MDTuple::get(Context, None);
+ MDTuple *A = MDTuple::get(Context, std::nullopt);
auto *Value1 = getConstantAsMetadata();
EXPECT_DEATH(A->push_back(Value1),
"Resizing is not supported for uniqued nodes");
>From ff2494bd18966527c92e3a6c62413c1ae3e84e38 Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <dkovalev at accesssoftek.com>
Date: Wed, 21 Feb 2024 01:19:47 +0300
Subject: [PATCH 2/4] Restore accidentally removed line
---
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 16963e408ed4d9..3126b880cc008f 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -1801,6 +1801,7 @@ void ModuleBitcodeWriter::writeDIDerivedType(const DIDerivedType *N,
Record.push_back(*DWARFAddressSpace + 1);
else
Record.push_back(0);
+
Record.push_back(VE.getMetadataOrNullID(N->getAnnotations().get()));
if (auto PtrAuthData = N->getPtrAuthData())
>From 57e86f68e3a83165efa521138b1646ad6a463317 Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <dkovalev at accesssoftek.com>
Date: Wed, 21 Feb 2024 01:20:01 +0300
Subject: [PATCH 3/4] Do not use else after return
---
llvm/include/llvm/IR/DebugInfoMetadata.h | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index eec150636fff78..6a13b7f4b5e11a 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -1106,36 +1106,31 @@ class DIDerivedType : public DIType {
std::optional<unsigned> getPtrAuthKey() const {
if (auto PtrAuthData = getPtrAuthData())
return (unsigned)PtrAuthData->Payload.Data.Key;
- else
- return std::nullopt;
+ return std::nullopt;
}
/// \returns The PointerAuth address discrimination bit.
std::optional<bool> isPtrAuthAddressDiscriminated() const {
if (auto PtrAuthData = getPtrAuthData())
return (bool)PtrAuthData->Payload.Data.IsAddressDiscriminated;
- else
- return std::nullopt;
+ return std::nullopt;
}
/// \returns The PointerAuth extra discriminator.
std::optional<unsigned> getPtrAuthExtraDiscriminator() const {
if (auto PtrAuthData = getPtrAuthData())
return (unsigned)PtrAuthData->Payload.Data.ExtraDiscriminator;
- else
- return std::nullopt;
+ return std::nullopt;
}
/// \returns The PointerAuth IsaPointer bit.
std::optional<bool> isPtrAuthIsaPointer() const {
if (auto PtrAuthData = getPtrAuthData())
return (bool)PtrAuthData->Payload.Data.IsaPointer;
- else
- return std::nullopt;
+ return std::nullopt;
}
/// \returns The PointerAuth authenticates null values bit.
std::optional<bool> getPtrAuthAuthenticatesNullValues() const {
if (auto PtrAuthData = getPtrAuthData())
return (bool)PtrAuthData->Payload.Data.AuthenticatesNullValues;
- else
- return std::nullopt;
+ return std::nullopt;
}
/// Get extra data associated with this derived type.
>From 32e43df2d656e0e52adc3e1df9d98f65acf1af01 Mon Sep 17 00:00:00 2001
From: Daniil Kovalev <dkovalev at accesssoftek.com>
Date: Wed, 21 Feb 2024 01:25:31 +0300
Subject: [PATCH 4/4] Do not include llvm/BinaryFormat/Dwarf.h in
llvm/IR/DebugInfoMetadata.h
---
llvm/include/llvm/IR/DebugInfoMetadata.h | 11 ++---------
llvm/lib/IR/DebugInfoMetadata.cpp | 11 +++++++++++
2 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index 6a13b7f4b5e11a..1a953c53c17a14 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -20,7 +20,6 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/iterator_range.h"
-#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/PseudoProbe.h"
@@ -746,9 +745,7 @@ class DIType : public DIScope {
unsigned getLine() const { return Line; }
uint64_t getSizeInBits() const { return SizeInBits; }
- uint32_t getAlignInBits() const {
- return (getTag() == dwarf::DW_TAG_LLVM_ptrauth_type ? 0 : SubclassData32);
- }
+ uint32_t getAlignInBits() const;
uint32_t getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
uint64_t getOffsetInBits() const { return OffsetInBits; }
DIFlags getFlags() const { return Flags; }
@@ -1096,11 +1093,7 @@ class DIDerivedType : public DIType {
return DWARFAddressSpace;
}
- std::optional<PtrAuthData> getPtrAuthData() const {
- return getTag() == dwarf::DW_TAG_LLVM_ptrauth_type
- ? std::optional<PtrAuthData>(PtrAuthData(SubclassData32))
- : std::nullopt;
- }
+ std::optional<PtrAuthData> getPtrAuthData() const;
/// \returns The PointerAuth key.
std::optional<unsigned> getPtrAuthKey() const {
diff --git a/llvm/lib/IR/DebugInfoMetadata.cpp b/llvm/lib/IR/DebugInfoMetadata.cpp
index 2b799eea7d56fe..36c13e79a64925 100644
--- a/llvm/lib/IR/DebugInfoMetadata.cpp
+++ b/llvm/lib/IR/DebugInfoMetadata.cpp
@@ -34,6 +34,10 @@ cl::opt<bool> EnableFSDiscriminator(
cl::desc("Enable adding flow sensitive discriminators"));
} // namespace llvm
+uint32_t DIType::getAlignInBits() const {
+ return (getTag() == dwarf::DW_TAG_LLVM_ptrauth_type ? 0 : SubclassData32);
+}
+
const DIExpression::FragmentInfo DebugVariable::DefaultFragment = {
std::numeric_limits<uint64_t>::max(), std::numeric_limits<uint64_t>::min()};
@@ -750,6 +754,13 @@ DIDerivedType *DIDerivedType::getImpl(
Ops);
}
+std::optional<DIDerivedType::PtrAuthData>
+DIDerivedType::getPtrAuthData() const {
+ return getTag() == dwarf::DW_TAG_LLVM_ptrauth_type
+ ? std::optional<PtrAuthData>(PtrAuthData(SubclassData32))
+ : std::nullopt;
+}
+
DICompositeType *DICompositeType::getImpl(
LLVMContext &Context, unsigned Tag, MDString *Name, Metadata *File,
unsigned Line, Metadata *Scope, Metadata *BaseType, uint64_t SizeInBits,
More information about the llvm-commits
mailing list