Reapply " [XRay] Add support for instrumentation of DSOs on x86_64 (#90959)"

.gitattributes

@@ -1,10 +1,3 @@
-# Checkout as native, commit as LF except in specific circumstances
-* text=auto
-*.bat text eol=crlf
-*.rc text eol=crlf
-*.sln text eol=crlf
-*.natvis text eol=crlf
-
 libcxx/src/**/*.cpp     merge=libcxx-reformat
 libcxx/include/**/*.h   merge=libcxx-reformat
 

.github/workflows/containers/github-action-ci/stage1.Dockerfile

@@ -2,7 +2,7 @@ FROM docker.io/library/ubuntu:22.04 as base
 ENV LLVM_SYSROOT=/opt/llvm
 
 FROM base as stage1-toolchain
-ENV LLVM_VERSION=18.1.8
+ENV LLVM_VERSION=19.1.2
 
 RUN apt-get update && \
     apt-get install -y \

bolt/lib/Core/DIEBuilder.cpp

@@ -281,8 +281,7 @@ void DIEBuilder::buildTypeUnits(DebugStrOffsetsWriter *StrOffsetWriter,
     for (auto &Row : TUIndex.getRows()) {
       uint64_t Signature = Row.getSignature();
       // manually populate TypeUnit to UnitVector
-      DwarfContext->getTypeUnitForHash(DwarfContext->getMaxVersion(), Signature,
-                                       true);
+      DwarfContext->getTypeUnitForHash(Signature, true);
     }
   }
   const unsigned int CUNum = getCUNum(DwarfContext, isDWO());

clang-tools-extra/clang-doc/Generators.h

@@ -55,4 +55,8 @@ std::string getTagType(TagTypeKind AS);
 } // namespace doc
 } // namespace clang
 
+namespace llvm {
+extern template class Registry<clang::doc::Generator>;
+} // namespace llvm
+
 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_DOC_GENERATOR_H

clang-tools-extra/clang-tidy/ClangTidyModuleRegistry.h

@@ -18,4 +18,8 @@ using ClangTidyModuleRegistry = llvm::Registry<ClangTidyModule>;
 
 } // namespace clang::tidy
 
+namespace llvm {
+extern template class Registry<clang::tidy::ClangTidyModule>;
+} // namespace llvm
+
 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CLANGTIDYMODULEREGISTRY_H

clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeUnionAccessCheck.cpp

@@ -23,8 +23,11 @@ void ProTypeUnionAccessCheck::registerMatchers(MatchFinder *Finder) {
 
 void ProTypeUnionAccessCheck::check(const MatchFinder::MatchResult &Result) {
   const auto *Matched = Result.Nodes.getNodeAs<MemberExpr>("expr");
-  diag(Matched->getMemberLoc(),
-       "do not access members of unions; use (boost::)variant instead");
+  SourceLocation Loc = Matched->getMemberLoc();
+  if (Loc.isInvalid())
+    Loc = Matched->getBeginLoc();
+  diag(Loc, "do not access members of unions; consider using (boost::)variant "
+            "instead");
 }
 
 } // namespace clang::tidy::cppcoreguidelines

clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp

@@ -172,25 +172,25 @@ void ConstCorrectnessCheck::check(const MatchFinder::MatchResult &Result) {
 
   using namespace utils::fixit;
   if (VC == VariableCategory::Value && TransformValues) {
-    Diag << addQualifierToVarDecl(*Variable, *Result.Context,
-                                  DeclSpec::TQ_const, QualifierTarget::Value,
+    Diag << addQualifierToVarDecl(*Variable, *Result.Context, Qualifiers::Const,
+                                  QualifierTarget::Value,
                                   QualifierPolicy::Right);
     // FIXME: Add '{}' for default initialization if no user-defined default
     // constructor exists and there is no initializer.
     return;
   }
 
   if (VC == VariableCategory::Reference && TransformReferences) {
-    Diag << addQualifierToVarDecl(*Variable, *Result.Context,
-                                  DeclSpec::TQ_const, QualifierTarget::Value,
+    Diag << addQualifierToVarDecl(*Variable, *Result.Context, Qualifiers::Const,
+                                  QualifierTarget::Value,
                                   QualifierPolicy::Right);
     return;
   }
 
   if (VC == VariableCategory::Pointer) {
     if (WarnPointersAsValues && TransformPointersAsValues) {
       Diag << addQualifierToVarDecl(*Variable, *Result.Context,
-                                    DeclSpec::TQ_const, QualifierTarget::Value,
+                                    Qualifiers::Const, QualifierTarget::Value,
                                     QualifierPolicy::Right);
     }
     return;

clang-tools-extra/clang-tidy/performance/ForRangeCopyCheck.cpp

@@ -91,7 +91,7 @@ bool ForRangeCopyCheck::handleConstValueCopy(const VarDecl &LoopVar,
       << utils::fixit::changeVarDeclToReference(LoopVar, Context);
   if (!LoopVar.getType().isConstQualified()) {
     if (std::optional<FixItHint> Fix = utils::fixit::addQualifierToVarDecl(
-            LoopVar, Context, DeclSpec::TQ::TQ_const))
+            LoopVar, Context, Qualifiers::Const))
       Diagnostic << *Fix;
   }
   return true;
@@ -129,7 +129,7 @@ bool ForRangeCopyCheck::handleCopyIsOnlyConstReferenced(
         "making it a const reference");
 
     if (std::optional<FixItHint> Fix = utils::fixit::addQualifierToVarDecl(
-            LoopVar, Context, DeclSpec::TQ::TQ_const))
+            LoopVar, Context, Qualifiers::Const))
       Diag << *Fix << utils::fixit::changeVarDeclToReference(LoopVar, Context);
 
     return true;

clang-tools-extra/clang-tidy/performance/UnnecessaryCopyInitialization.cpp

@@ -36,7 +36,7 @@ void recordFixes(const VarDecl &Var, ASTContext &Context,
   Diagnostic << utils::fixit::changeVarDeclToReference(Var, Context);
   if (!Var.getType().isLocalConstQualified()) {
     if (std::optional<FixItHint> Fix = utils::fixit::addQualifierToVarDecl(
-            Var, Context, DeclSpec::TQ::TQ_const))
+            Var, Context, Qualifiers::Const))
       Diagnostic << *Fix;
   }
 }

clang-tools-extra/clang-tidy/performance/UnnecessaryValueParamCheck.cpp

@@ -172,7 +172,7 @@ void UnnecessaryValueParamCheck::handleConstRefFix(const FunctionDecl &Function,
     // declaration.
     if (!CurrentParam.getType().getCanonicalType().isConstQualified()) {
       if (std::optional<FixItHint> Fix = utils::fixit::addQualifierToVarDecl(
-              CurrentParam, Context, DeclSpec::TQ::TQ_const))
+              CurrentParam, Context, Qualifiers::Const))
         Diag << *Fix;
     }
   }

clang-tools-extra/clang-tidy/utils/FixItHintUtils.cpp

@@ -11,6 +11,7 @@
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/ExprCXX.h"
 #include "clang/AST/Type.h"
+#include "clang/Sema/DeclSpec.h"
 #include "clang/Tooling/FixIt.h"
 #include <optional>
 
@@ -71,15 +72,17 @@ static std::optional<FixItHint> fixIfNotDangerous(SourceLocation Loc,
 
 // Build a string that can be emitted as FixIt with either a space in before
 // or after the qualifier, either ' const' or 'const '.
-static std::string buildQualifier(DeclSpec::TQ Qualifier,
+static std::string buildQualifier(Qualifiers::TQ Qualifier,
                                   bool WhitespaceBefore = false) {
   if (WhitespaceBefore)
-    return (llvm::Twine(' ') + DeclSpec::getSpecifierName(Qualifier)).str();
-  return (llvm::Twine(DeclSpec::getSpecifierName(Qualifier)) + " ").str();
+    return (llvm::Twine(' ') + Qualifiers::fromCVRMask(Qualifier).getAsString())
+        .str();
+  return (llvm::Twine(Qualifiers::fromCVRMask(Qualifier).getAsString()) + " ")
+      .str();
 }
 
 static std::optional<FixItHint> changeValue(const VarDecl &Var,
-                                            DeclSpec::TQ Qualifier,
+                                            Qualifiers::TQ Qualifier,
                                             QualifierTarget QualTarget,
                                             QualifierPolicy QualPolicy,
                                             const ASTContext &Context) {
@@ -99,7 +102,7 @@ static std::optional<FixItHint> changeValue(const VarDecl &Var,
 }
 
 static std::optional<FixItHint> changePointerItself(const VarDecl &Var,
-                                                    DeclSpec::TQ Qualifier,
+                                                    Qualifiers::TQ Qualifier,
                                                     const ASTContext &Context) {
   if (locDangerous(Var.getLocation()))
     return std::nullopt;
@@ -112,7 +115,7 @@ static std::optional<FixItHint> changePointerItself(const VarDecl &Var,
 }
 
 static std::optional<FixItHint>
-changePointer(const VarDecl &Var, DeclSpec::TQ Qualifier, const Type *Pointee,
+changePointer(const VarDecl &Var, Qualifiers::TQ Qualifier, const Type *Pointee,
               QualifierTarget QualTarget, QualifierPolicy QualPolicy,
               const ASTContext &Context) {
   // The pointer itself shall be marked as `const`. This is always to the right
@@ -163,7 +166,7 @@ changePointer(const VarDecl &Var, DeclSpec::TQ Qualifier, const Type *Pointee,
 }
 
 static std::optional<FixItHint>
-changeReferencee(const VarDecl &Var, DeclSpec::TQ Qualifier, QualType Pointee,
+changeReferencee(const VarDecl &Var, Qualifiers::TQ Qualifier, QualType Pointee,
                  QualifierTarget QualTarget, QualifierPolicy QualPolicy,
                  const ASTContext &Context) {
   if (QualPolicy == QualifierPolicy::Left && isValueType(Pointee))
@@ -183,7 +186,7 @@ changeReferencee(const VarDecl &Var, DeclSpec::TQ Qualifier, QualType Pointee,
 
 std::optional<FixItHint> addQualifierToVarDecl(const VarDecl &Var,
                                                const ASTContext &Context,
-                                               DeclSpec::TQ Qualifier,
+                                               Qualifiers::TQ Qualifier,
                                                QualifierTarget QualTarget,
                                                QualifierPolicy QualPolicy) {
   assert((QualPolicy == QualifierPolicy::Left ||

clang-tools-extra/clang-tidy/utils/FixItHintUtils.h

@@ -11,7 +11,7 @@
 
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Decl.h"
-#include "clang/Sema/DeclSpec.h"
+#include "clang/AST/Type.h"
 #include <optional>
 
 namespace clang::tidy::utils::fixit {
@@ -41,7 +41,7 @@ enum class QualifierTarget {
 /// Requires that `Var` is isolated in written code like in `int foo = 42;`.
 std::optional<FixItHint>
 addQualifierToVarDecl(const VarDecl &Var, const ASTContext &Context,
-                      DeclSpec::TQ Qualifier,
+                      Qualifiers::TQ Qualifier,
                       QualifierTarget QualTarget = QualifierTarget::Pointee,
                       QualifierPolicy QualPolicy = QualifierPolicy::Left);
 

clang-tools-extra/clangd/Config.h

@@ -162,6 +162,7 @@ struct Config {
     bool DeducedTypes = true;
     bool Designators = true;
     bool BlockEnd = false;
+    bool DefaultArguments = false;
     // Limit the length of type names in inlay hints. (0 means no limit)
     uint32_t TypeNameLimit = 32;
   } InlayHints;

clang-tools-extra/clangd/ConfigCompile.cpp

@@ -43,7 +43,6 @@
 #include "llvm/Support/Regex.h"
 #include "llvm/Support/SMLoc.h"
 #include "llvm/Support/SourceMgr.h"
-#include <algorithm>
 #include <memory>
 #include <optional>
 #include <string>
@@ -669,6 +668,11 @@ struct FragmentCompiler {
       Out.Apply.push_back([Value(**F.BlockEnd)](const Params &, Config &C) {
         C.InlayHints.BlockEnd = Value;
       });
+    if (F.DefaultArguments)
+      Out.Apply.push_back(
+          [Value(**F.DefaultArguments)](const Params &, Config &C) {
+            C.InlayHints.DefaultArguments = Value;
+          });
     if (F.TypeNameLimit)
       Out.Apply.push_back(
           [Value(**F.TypeNameLimit)](const Params &, Config &C) {

clang-tools-extra/clangd/ConfigFragment.h

@@ -339,6 +339,9 @@ struct Fragment {
     std::optional<Located<bool>> Designators;
     /// Show defined symbol names at the end of a definition block.
     std::optional<Located<bool>> BlockEnd;
+    /// Show parameter names and default values of default arguments after all
+    /// of the explicit arguments.
+    std::optional<Located<bool>> DefaultArguments;
     /// Limit the length of type name hints. (0 means no limit)
     std::optional<Located<uint32_t>> TypeNameLimit;
   };

clang-tools-extra/clangd/ConfigYAML.cpp

@@ -14,7 +14,6 @@
 #include "llvm/Support/YAMLParser.h"
 #include <optional>
 #include <string>
-#include <system_error>
 
 namespace clang {
 namespace clangd {
@@ -268,6 +267,10 @@ class Parser {
       if (auto Value = boolValue(N, "BlockEnd"))
         F.BlockEnd = *Value;
     });
+    Dict.handle("DefaultArguments", [&](Node &N) {
+      if (auto Value = boolValue(N, "DefaultArguments"))
+        F.DefaultArguments = *Value;
+    });
     Dict.handle("TypeNameLimit", [&](Node &N) {
       if (auto Value = uint32Value(N, "TypeNameLimit"))
         F.TypeNameLimit = *Value;