[Lldb-commits] [lldb] [lldb][Fortran] Added DWARFASTParser for Fortran (PR #218024)
Iasonas Karaprodromidis via lldb-commits
lldb-commits at lists.llvm.org
Fri Sep 4 11:08:11 PDT 2026
https://github.com/Iasonaskrpr updated https://github.com/llvm/llvm-project/pull/218024
>From f902f7f8a20dbfe71db5a5f56172d83a5e0d74c1 Mon Sep 17 00:00:00 2001
From: Iasonaskrpr <iaskarapro at gmail.com>
Date: Fri, 4 Sep 2026 21:01:23 +0300
Subject: [PATCH 1/2] [lldb][Fortran] Added TypeSystemFortran and Fortran
language plugin
---
lldb/include/lldb/Target/Language.h | 2 +
lldb/include/lldb/lldb-forward.h | 1 +
lldb/source/Plugins/Language/CMakeLists.txt | 1 +
.../Plugins/Language/Fortran/CMakeLists.txt | 12 +
.../Language/Fortran/FortranLanguage.cpp | 63 +++
.../Language/Fortran/FortranLanguage.h | 55 ++
lldb/source/Plugins/TypeSystem/CMakeLists.txt | 1 +
.../Plugins/TypeSystem/Fortran/CMakeLists.txt | 12 +
.../TypeSystem/Fortran/TypeSystemFortran.cpp | 81 +++
.../TypeSystem/Fortran/TypeSystemFortran.h | 494 ++++++++++++++++++
lldb/source/Target/Language.cpp | 14 +
lldb/unittests/Language/CMakeLists.txt | 1 +
.../unittests/Language/Fortran/CMakeLists.txt | 6 +
.../Language/Fortran/FortranLanguageTest.cpp | 40 ++
14 files changed, 783 insertions(+)
create mode 100644 lldb/source/Plugins/Language/Fortran/CMakeLists.txt
create mode 100644 lldb/source/Plugins/Language/Fortran/FortranLanguage.cpp
create mode 100644 lldb/source/Plugins/Language/Fortran/FortranLanguage.h
create mode 100644 lldb/source/Plugins/TypeSystem/Fortran/CMakeLists.txt
create mode 100644 lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
create mode 100644 lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
create mode 100644 lldb/unittests/Language/Fortran/CMakeLists.txt
create mode 100644 lldb/unittests/Language/Fortran/FortranLanguageTest.cpp
diff --git a/lldb/include/lldb/Target/Language.h b/lldb/include/lldb/Target/Language.h
index 879a4f14783fa..c08994cc32e9f 100644
--- a/lldb/include/lldb/Target/Language.h
+++ b/lldb/include/lldb/Target/Language.h
@@ -443,6 +443,8 @@ class Language : public PluginInterface {
/// Equivalent to \c LanguageIsC||LanguageIsObjC||LanguageIsCPlusPlus.
static bool LanguageIsCFamily(lldb::LanguageType language);
+ static bool LanguageIsFortran(lldb::LanguageType language);
+
static bool LanguageIsPascal(lldb::LanguageType language);
// return the primary language, so if LanguageIsC(l), return eLanguageTypeC,
diff --git a/lldb/include/lldb/lldb-forward.h b/lldb/include/lldb/lldb-forward.h
index f691b5a3a76e9..f48f077e9b5ee 100644
--- a/lldb/include/lldb/lldb-forward.h
+++ b/lldb/include/lldb/lldb-forward.h
@@ -289,6 +289,7 @@ class TypeSummaryImpl;
class TypeSummaryOptions;
class TypeSystem;
class TypeSystemClang;
+class TypeSystemFortran;
class UUID;
class UnixSignals;
class Unwind;
diff --git a/lldb/source/Plugins/Language/CMakeLists.txt b/lldb/source/Plugins/Language/CMakeLists.txt
index 6367ab916c8fb..5377734af2f8d 100644
--- a/lldb/source/Plugins/Language/CMakeLists.txt
+++ b/lldb/source/Plugins/Language/CMakeLists.txt
@@ -7,3 +7,4 @@ set_property(DIRECTORY PROPERTY LLDB_TOLERATED_PLUGIN_DEPENDENCIES
add_subdirectory(CPlusPlus)
add_subdirectory(ObjC)
add_subdirectory(ObjCPlusPlus)
+add_subdirectory(Fortran)
diff --git a/lldb/source/Plugins/Language/Fortran/CMakeLists.txt b/lldb/source/Plugins/Language/Fortran/CMakeLists.txt
new file mode 100644
index 0000000000000..3ee934fa01f52
--- /dev/null
+++ b/lldb/source/Plugins/Language/Fortran/CMakeLists.txt
@@ -0,0 +1,12 @@
+add_lldb_library(lldbPluginFortranLanguage PLUGIN
+ FortranLanguage.cpp
+
+ LINK_LIBS
+ lldbCore
+ lldbDataFormatters
+ lldbExpression
+ lldbHost
+ lldbSymbol
+ lldbTarget
+ lldbUtility
+)
diff --git a/lldb/source/Plugins/Language/Fortran/FortranLanguage.cpp b/lldb/source/Plugins/Language/Fortran/FortranLanguage.cpp
new file mode 100644
index 0000000000000..5df2f36f92eb7
--- /dev/null
+++ b/lldb/source/Plugins/Language/Fortran/FortranLanguage.cpp
@@ -0,0 +1,63 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the Fortran language plugin.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringRef.h"
+
+#include "FortranLanguage.h"
+
+#include "lldb/Core/PluginManager.h"
+
+using namespace llvm;
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+LLDB_PLUGIN_DEFINE(FortranLanguage)
+
+void FortranLanguage::Initialize() {
+ PluginManager::RegisterPlugin(GetPluginNameStatic(), "Fortran Language",
+ CreateInstance);
+}
+
+void FortranLanguage::Terminate() {
+ PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+StringRef FortranLanguage::GetPluginNameStatic() {
+ static llvm::StringRef g_name("fortran");
+ return g_name;
+}
+
+//------------------------------------------------------------------
+// PluginInterface protocol
+//------------------------------------------------------------------
+StringRef FortranLanguage::GetPluginName() { return GetPluginNameStatic(); }
+
+uint32_t FortranLanguage::GetPluginVersion() { return 1; }
+
+Language *FortranLanguage::CreateInstance(LanguageType language) {
+ if (Language::LanguageIsFortran(language)) {
+ return new FortranLanguage();
+ }
+ return nullptr;
+}
+
+bool FortranLanguage::IsSourceFile(StringRef file_path) const {
+ const auto suffixes = {".f90", ".f", ".f95", ".f03", ".f08",
+ ".f18", ".for", ".ftn", ".fpp", ",f77"};
+ for (auto suffix : suffixes) {
+ if (file_path.ends_with_insensitive(suffix))
+ return true;
+ }
+ return false;
+}
diff --git a/lldb/source/Plugins/Language/Fortran/FortranLanguage.h b/lldb/source/Plugins/Language/Fortran/FortranLanguage.h
new file mode 100644
index 0000000000000..6d6a2d264089a
--- /dev/null
+++ b/lldb/source/Plugins/Language/Fortran/FortranLanguage.h
@@ -0,0 +1,55 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file defines the Fortran language plugin.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SOURCE_PLUGINS_LANGUAGE_FORTRAN_FORTRANLANGUAGE_H
+#define LLDB_SOURCE_PLUGINS_LANGUAGE_FORTRAN_FORTRANLANGUAGE_H
+#include "lldb/Target/Language.h"
+
+#include "llvm/ADT/StringRef.h"
+
+#include "lldb/Target/Language.h"
+#include "lldb/Utility/ConstString.h"
+#include "lldb/lldb-private.h"
+
+namespace lldb_private {
+
+class FortranLanguage : public Language {
+public:
+ FortranLanguage() = default;
+
+ ~FortranLanguage() override = default;
+
+ lldb::LanguageType GetLanguageType() const override {
+ return lldb::eLanguageTypeFortran90;
+ }
+
+ // Static Functions
+ static void Initialize();
+
+ static void Terminate();
+
+ static lldb_private::Language *CreateInstance(lldb::LanguageType language);
+
+ static llvm::StringRef GetPluginNameStatic();
+
+ // PluginInterface protocol
+ llvm::StringRef GetPluginName() override;
+
+ uint32_t GetPluginVersion();
+
+ bool IsSourceFile(llvm::StringRef file_path) const override;
+};
+
+}; // namespace lldb_private
+
+#endif // LLDB_SOURCE_PLUGINS_LANGUAGE_FORTRAN_FORTRANLANGUAGE_H
diff --git a/lldb/source/Plugins/TypeSystem/CMakeLists.txt b/lldb/source/Plugins/TypeSystem/CMakeLists.txt
index 47e32ff176d8c..2761f4a9df277 100644
--- a/lldb/source/Plugins/TypeSystem/CMakeLists.txt
+++ b/lldb/source/Plugins/TypeSystem/CMakeLists.txt
@@ -3,3 +3,4 @@ set_property(DIRECTORY PROPERTY LLDB_PLUGIN_KIND TypeSystem)
set_property(DIRECTORY PROPERTY LLDB_TOLERATED_PLUGIN_DEPENDENCIES SymbolFile)
add_subdirectory(Clang)
+add_subdirectory(Fortran)
diff --git a/lldb/source/Plugins/TypeSystem/Fortran/CMakeLists.txt b/lldb/source/Plugins/TypeSystem/Fortran/CMakeLists.txt
new file mode 100644
index 0000000000000..c78b70d48eb31
--- /dev/null
+++ b/lldb/source/Plugins/TypeSystem/Fortran/CMakeLists.txt
@@ -0,0 +1,12 @@
+add_lldb_library(lldbPluginTypeSystemFortran PLUGIN
+ TypeSystemFortran.cpp
+
+ LINK_COMPONENTS
+ Support
+ LINK_LIBS
+ lldbCore
+ lldbSymbol
+ lldbTarget
+ lldbUtility
+ lldbPluginSymbolFileDWARF
+)
diff --git a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
new file mode 100644
index 0000000000000..f1466c4165c52
--- /dev/null
+++ b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
@@ -0,0 +1,81 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the Fortran type system.
+///
+//===----------------------------------------------------------------------===//
+#include "TypeSystemFortran.h"
+
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Symbol/SymbolFile.h"
+#include "lldb/Target/Target.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace llvm;
+using namespace lldb_private::plugin::dwarf;
+
+LLDB_PLUGIN_DEFINE(TypeSystemFortran)
+
+/// Used to determine if TypeSystem supports the language passed in
+/// CreateInstance
+static bool IsLanguageSupported(lldb::LanguageType language) {
+ if (language == lldb::LanguageType::eLanguageTypeFortran77 ||
+ language == lldb::LanguageType::eLanguageTypeFortran90 ||
+ language == lldb::LanguageType::eLanguageTypeFortran95 ||
+ language == lldb::LanguageType::eLanguageTypeFortran03 ||
+ language == lldb::LanguageType::eLanguageTypeFortran08 ||
+ language == lldb::LanguageType::eLanguageTypeFortran18)
+ return true;
+
+ return false;
+}
+
+char TypeSystemFortran::ID;
+
+TypeSystemFortran::~TypeSystemFortran() = default;
+TypeSystemFortran::TypeSystemFortran() = default;
+
+void TypeSystemFortran::Initialize() {
+ PluginManager::RegisterPlugin(
+ GetPluginNameStatic(), "fortran AST context plug-in", CreateInstance,
+ GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions());
+}
+
+void TypeSystemFortran::Terminate() {
+ PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+lldb::TypeSystemSP
+TypeSystemFortran::CreateInstance(lldb::LanguageType language, Module *module,
+ Target *target) {
+ if (IsLanguageSupported(language)) {
+ return std::make_shared<TypeSystemFortran>();
+ }
+ return TypeSystemSP();
+}
+
+LanguageSet TypeSystemFortran::GetSupportedLanguagesForTypes() {
+ LanguageSet languages;
+ languages.Insert(eLanguageTypeFortran77);
+ languages.Insert(eLanguageTypeFortran90);
+ languages.Insert(eLanguageTypeFortran95);
+ languages.Insert(eLanguageTypeFortran03);
+ languages.Insert(eLanguageTypeFortran08);
+ languages.Insert(eLanguageTypeFortran18);
+ return languages;
+}
+
+LanguageSet TypeSystemFortran::GetSupportedLanguagesForExpressions() {
+ return GetSupportedLanguagesForTypes();
+}
+
+bool TypeSystemFortran::SupportsLanguage(lldb::LanguageType language) {
+ return IsLanguageSupported(language);
+}
diff --git a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
new file mode 100644
index 0000000000000..6291d4c8131dc
--- /dev/null
+++ b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
@@ -0,0 +1,494 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file contains the definition of the Fortran Type System.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SOURCE_PLUGINS_TYPESYSTEM_FORTRAN_TYPESYSTEMFORTRAN_H
+#define LLDB_SOURCE_PLUGINS_TYPESYSTEM_FORTRAN_TYPESYSTEMFORTRAN_H
+
+#include "lldb/Symbol/TypeSystem.h"
+#include "llvm/Support/ErrorHandling.h"
+
+namespace lldb_private {
+
+class TypeSystemFortran : public TypeSystem {
+ // LLVM RTTI support
+ static char ID;
+
+public:
+ // llvm casting support
+ bool isA(const void *ClassID) const override { return ClassID == &ID; }
+ static bool classof(const TypeSystem *ts) { return ts->isA(&ID); }
+
+ TypeSystemFortran();
+
+ ~TypeSystemFortran();
+
+ static void Initialize();
+
+ static void Terminate();
+
+ static lldb::TypeSystemSP CreateInstance(lldb::LanguageType language,
+ Module *module, Target *target);
+
+ static LanguageSet GetSupportedLanguagesForTypes();
+
+ static LanguageSet GetSupportedLanguagesForExpressions();
+
+ // CompilerDecl functions
+ ConstString DeclGetName(void *opaque_decl) override { return ConstString(); }
+
+ CompilerType GetTypeForDecl(void *opaque_decl) override {
+ return CompilerType();
+ }
+
+ // CompilerDeclContext functions
+
+ ConstString DeclContextGetName(void *opaque_decl_ctx) override {
+ return ConstString();
+ }
+
+ ConstString DeclContextGetScopeQualifiedName(void *opaque_decl_ctx) override {
+ return ConstString();
+ }
+
+ bool DeclContextIsClassMethod(void *opaque_decl_ctx) override {
+ return false;
+ }
+
+ bool DeclContextIsContainedInLookup(void *opaque_decl_ctx,
+ void *other_opaque_decl_ctx) override {
+ return false;
+ }
+
+ lldb::LanguageType DeclContextGetLanguage(void *opaque_decl_ctx) override {
+ return lldb::LanguageType::eLanguageTypeUnknown;
+ }
+
+// Tests
+#ifndef NDEBUG
+ /// Verify the integrity of the type to catch CompilerTypes that mix
+ /// and match invalid TypeSystem/Opaque type pairs.
+ bool Verify(lldb::opaque_compiler_type_t type) override { return false; };
+#endif
+
+ bool IsArrayType(lldb::opaque_compiler_type_t type,
+ CompilerType *element_type, uint64_t *size,
+ bool *is_incomplete) override {
+ return false;
+ };
+
+ bool IsAggregateType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsCharType(lldb::opaque_compiler_type_t type) override { return false; }
+
+ bool IsCompleteType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsDefined(lldb::opaque_compiler_type_t type) override { return false; }
+
+ bool IsFloatingPointType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsFunctionType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ size_t
+ GetNumberOfFunctionArguments(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ CompilerType GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type,
+ const size_t index) override {
+ return CompilerType();
+ }
+
+ bool IsFunctionPointerType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsMemberFunctionPointerType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsMemberDataPointerType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsBlockPointerType(lldb::opaque_compiler_type_t type,
+ CompilerType *function_pointer_type_ptr) override {
+ return false;
+ }
+
+ bool IsIntegerType(lldb::opaque_compiler_type_t type,
+ bool &is_signed) override {
+ return false;
+ };
+
+ bool IsScopedEnumerationType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsPossibleDynamicType(lldb::opaque_compiler_type_t type,
+ CompilerType *target_type, // Can pass NULL
+ bool check_cplusplus, bool check_objc) override {
+ return false;
+ }
+
+ bool IsPointerType(lldb::opaque_compiler_type_t type,
+ CompilerType *pointee_type) override {
+ return false;
+ }
+
+ bool IsScalarType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsVoidType(lldb::opaque_compiler_type_t type) override { return false; }
+
+ bool CanPassInRegisters(const CompilerType &type) override { return false; }
+
+ // TypeSystems can support more than one language
+ bool SupportsLanguage(lldb::LanguageType language) override;
+
+ llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
+
+ static llvm::StringRef GetPluginNameStatic() { return "fortran"; }
+
+ // Type Completion
+
+ bool GetCompleteType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ // AST related queries
+
+ uint32_t GetPointerByteSize() override { return 0; }
+
+ CompilerType GetPointerDiffType(bool is_signed) override {
+ return CompilerType();
+ }
+
+ CompilerType GetSizeType() override { return CompilerType(); }
+
+ unsigned GetPtrAuthKey(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ unsigned GetPtrAuthDiscriminator(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ bool GetPtrAuthAddressDiversity(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ // Accessors
+
+ ConstString GetTypeName(lldb::opaque_compiler_type_t type,
+ bool BaseOnly) override {
+ return ConstString();
+ }
+
+ ConstString GetDisplayTypeName(lldb::opaque_compiler_type_t type) override {
+ return ConstString();
+ }
+
+ uint32_t
+ GetTypeInfo(lldb::opaque_compiler_type_t type,
+ CompilerType *pointee_or_element_compiler_type) override {
+ return 0;
+ }
+
+ lldb::LanguageType
+ GetMinimumLanguage(lldb::opaque_compiler_type_t type) override {
+ return lldb::LanguageType::eLanguageTypeFortran90;
+ }
+
+ lldb::TypeClass GetTypeClass(lldb::opaque_compiler_type_t type) override {
+ return lldb::TypeClass::eTypeClassInvalid;
+ }
+
+ // Creating related types
+
+ CompilerType GetArrayElementType(lldb::opaque_compiler_type_t type,
+ ExecutionContextScope *exe_scope) override {
+ return CompilerType();
+ }
+
+ CompilerType GetCanonicalType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ CompilerType
+ GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ // Returns -1 if this isn't a function of if the function doesn't have a
+ // prototype Returns a value >= 0 if there is a prototype.
+ int GetFunctionArgumentCount(lldb::opaque_compiler_type_t type) override {
+ return -1;
+ }
+
+ CompilerType GetFunctionArgumentTypeAtIndex(lldb::opaque_compiler_type_t type,
+ size_t idx) override {
+ return CompilerType();
+ }
+
+ CompilerType
+ GetFunctionReturnType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ size_t GetNumMemberFunctions(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ TypeMemberFunctionImpl
+ GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type,
+ size_t idx) override {
+ return TypeMemberFunctionImpl();
+ }
+
+ CompilerType GetPointeeType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ CompilerType GetPointerType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ // Exploring the type
+
+ const llvm::fltSemantics &
+ GetFloatTypeSemantics(size_t byte_size, lldb::Format format) override {
+ return llvm::APFloatBase::Bogus();
+ }
+
+ llvm::Expected<uint64_t>
+ GetBitSize(lldb::opaque_compiler_type_t type,
+ ExecutionContextScope *exe_scope) override {
+ return 0;
+ }
+
+ lldb::Encoding GetEncoding(lldb::opaque_compiler_type_t type) override {
+ return lldb::eEncodingInvalid;
+ }
+
+ lldb::Format GetFormat(lldb::opaque_compiler_type_t type) override {
+ return lldb::eFormatDefault;
+ }
+
+ llvm::Expected<uint32_t>
+ GetNumChildren(lldb::opaque_compiler_type_t type,
+ bool omit_empty_base_classes,
+ const ExecutionContext *exe_ctx) override {
+ return 0;
+ }
+
+ lldb::BasicType
+ GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) override {
+ return lldb::eBasicTypeUnsignedInt;
+ }
+
+ uint32_t GetNumFields(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ CompilerType GetFieldAtIndex(lldb::opaque_compiler_type_t type, size_t idx,
+ std::string &name, uint64_t *bit_offset_ptr,
+ uint32_t *bitfield_bit_size_ptr,
+ bool *is_bitfield_ptr) override {
+ return CompilerType();
+ }
+
+ uint32_t GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ uint32_t
+ GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ CompilerType GetDirectBaseClassAtIndex(lldb::opaque_compiler_type_t type,
+ size_t idx,
+ uint32_t *bit_offset_ptr) override {
+ return CompilerType();
+ }
+
+ CompilerType GetVirtualBaseClassAtIndex(lldb::opaque_compiler_type_t type,
+ size_t idx,
+ uint32_t *bit_offset_ptr) override {
+ return CompilerType();
+ }
+
+ llvm::Expected<CompilerType>
+ GetDereferencedType(lldb::opaque_compiler_type_t type,
+ ExecutionContext *exe_ctx, std::string &deref_name,
+ uint32_t &deref_byte_size, int32_t &deref_byte_offset,
+ ValueObject *valobj, uint64_t &language_flags) override {
+ return CompilerType();
+ }
+
+ llvm::Expected<CompilerType> GetChildCompilerTypeAtIndex(
+ lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx,
+ bool transparent_pointers, bool omit_empty_base_classes,
+ bool ignore_array_bounds, std::string &child_name,
+ uint32_t &child_byte_size, int32_t &child_byte_offset,
+ uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset,
+ bool &child_is_base_class, bool &child_is_deref_of_parent,
+ ValueObject *valobj, uint64_t &language_flags) override {
+ return CompilerType();
+ }
+
+ // Lookup a child given a name. This function will match base class names and
+ // member member names in "clang_type" only, not descendants.
+ llvm::Expected<uint32_t>
+ GetIndexOfChildWithName(lldb::opaque_compiler_type_t type,
+ llvm::StringRef name,
+ bool omit_empty_base_classes) override {
+ return 0;
+ }
+
+ size_t
+ GetIndexOfChildMemberWithName(lldb::opaque_compiler_type_t type,
+ llvm::StringRef name,
+ bool omit_empty_base_classes,
+ std::vector<uint32_t> &child_indexes) override {
+ return 0;
+ }
+
+#ifndef NDEBUG
+ /// Convenience LLVM-style dump method for use in the debugger only.
+ LLVM_DUMP_METHOD void dump(lldb::opaque_compiler_type_t type) const override {
+ }
+#endif
+
+ bool DumpTypeValue(lldb::opaque_compiler_type_t type, Stream &s,
+ lldb::Format format, const DataExtractor &data,
+ lldb::offset_t data_offset, size_t data_byte_size,
+ uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset,
+ ExecutionContextScope *exe_scope) override {
+ return false;
+ }
+
+ /// Dump the type to stdout.
+ void DumpTypeDescription(
+ lldb::opaque_compiler_type_t type,
+ lldb::DescriptionLevel level = lldb::eDescriptionLevelFull) override {}
+
+ /// Print a description of the type to a stream. The exact implementation
+ /// varies, but the expectation is that eDescriptionLevelFull returns a
+ /// source-like representation of the type, whereas eDescriptionLevelVerbose
+ /// does a dump of the underlying AST if applicable.
+ void DumpTypeDescription(
+ lldb::opaque_compiler_type_t type, Stream &s,
+ lldb::DescriptionLevel level = lldb::eDescriptionLevelFull) override {}
+
+ /// Dump a textual representation of the internal TypeSystem state to the
+ /// given stream.
+ ///
+ /// This should not modify the state of the TypeSystem if possible.
+ ///
+ /// \param[out] output Stream to dup the AST into.
+ /// \param[in] filter If empty, dump whole AST. If non-empty, will only
+ /// dump decls whose names contain \c filter.
+ /// \param[in] show_color If true, prints the AST color-highlighted.
+ void Dump(llvm::raw_ostream &output, llvm::StringRef filter,
+ bool show_color) override {}
+
+ /// This is used by swift.
+ bool IsRuntimeGeneratedType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ // TODO: Determine if these methods should move to TypeSystemClang.
+
+ bool IsPointerOrReferenceType(lldb::opaque_compiler_type_t type,
+ CompilerType *pointee_type) override {
+ return false;
+ }
+
+ unsigned GetTypeQualifiers(lldb::opaque_compiler_type_t type) override {
+ return 0;
+ }
+
+ std::optional<size_t>
+ GetTypeBitAlign(lldb::opaque_compiler_type_t type,
+ ExecutionContextScope *exe_scope) override {
+ return 0;
+ }
+
+ CompilerType GetBasicTypeFromAST(lldb::BasicType basic_type) override {
+ return CompilerType();
+ }
+
+ CompilerType GetBuiltinTypeForEncodingAndBitSize(lldb::Encoding encoding,
+ size_t bit_size) override {
+ return CompilerType();
+ }
+
+ bool IsBeingDefined(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsConst(lldb::opaque_compiler_type_t type) override { return false; }
+
+ uint32_t IsHomogeneousAggregate(lldb::opaque_compiler_type_t type,
+ CompilerType *base_type_ptr) override {
+ return 0;
+ }
+
+ bool IsPolymorphicClass(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ bool IsTypedefType(lldb::opaque_compiler_type_t type) override {
+ return false;
+ }
+
+ // If the current object represents a typedef type, get the underlying type
+ CompilerType GetTypedefedType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ bool IsVectorType(lldb::opaque_compiler_type_t type,
+ CompilerType *element_type, uint64_t *size) override {
+ return false;
+ }
+
+ CompilerType
+ GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ CompilerType GetNonReferenceType(lldb::opaque_compiler_type_t type) override {
+ return CompilerType();
+ }
+
+ bool IsReferenceType(lldb::opaque_compiler_type_t type,
+ CompilerType *pointee_type, bool *is_rvalue) override {
+ return false;
+ }
+
+private:
+ TypeSystemFortran(const TypeSystemFortran &) = delete;
+ const TypeSystemFortran &operator=(const TypeSystemFortran &) = delete;
+};
+} // namespace lldb_private
+#endif // LLDB_SOURCE_PLUGINS_TYPESYSTEM_FORTRAN_TYPESYSTEMFORTRAN_H
diff --git a/lldb/source/Target/Language.cpp b/lldb/source/Target/Language.cpp
index 077c403f4ea58..a4d6031b4b27d 100644
--- a/lldb/source/Target/Language.cpp
+++ b/lldb/source/Target/Language.cpp
@@ -396,6 +396,20 @@ bool Language::LanguageIsCFamily(LanguageType language) {
}
}
+bool Language::LanguageIsFortran(LanguageType language) {
+ switch (language) {
+ case eLanguageTypeFortran77:
+ case eLanguageTypeFortran90:
+ case eLanguageTypeFortran95:
+ case eLanguageTypeFortran03:
+ case eLanguageTypeFortran08:
+ case eLanguageTypeFortran18:
+ return true;
+ default:
+ return false;
+ }
+}
+
bool Language::LanguageIsPascal(LanguageType language) {
switch (language) {
case eLanguageTypePascal83:
diff --git a/lldb/unittests/Language/CMakeLists.txt b/lldb/unittests/Language/CMakeLists.txt
index a0bdc62af98c6..26710ff8896e2 100644
--- a/lldb/unittests/Language/CMakeLists.txt
+++ b/lldb/unittests/Language/CMakeLists.txt
@@ -1,3 +1,4 @@
add_subdirectory(CPlusPlus)
add_subdirectory(CLanguages)
add_subdirectory(ObjC)
+add_subdirectory(Fortran)
diff --git a/lldb/unittests/Language/Fortran/CMakeLists.txt b/lldb/unittests/Language/Fortran/CMakeLists.txt
new file mode 100644
index 0000000000000..661b12ebf8950
--- /dev/null
+++ b/lldb/unittests/Language/Fortran/CMakeLists.txt
@@ -0,0 +1,6 @@
+add_lldb_unittest(LanguageFortranLanguageTests
+ FortranLanguageTest.cpp
+
+ LINK_LIBS
+ lldbPluginFortranLanguage
+)
diff --git a/lldb/unittests/Language/Fortran/FortranLanguageTest.cpp b/lldb/unittests/Language/Fortran/FortranLanguageTest.cpp
new file mode 100644
index 0000000000000..d8d7287e0104c
--- /dev/null
+++ b/lldb/unittests/Language/Fortran/FortranLanguageTest.cpp
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file tests the Fortran plugin features.
+///
+//===----------------------------------------------------------------------===//
+
+#include "Plugins/Language/Fortran/FortranLanguage.h"
+#include "TestingSupport/SubsystemRAII.h"
+#include "lldb/lldb-enumerations.h"
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+/// Returns the name of the LLDB plugin for the given language or an empty
+/// string if there is no fitting plugin.
+static llvm::StringRef GetPluginName(lldb::LanguageType language) {
+ if (Language *language_plugin = Language::FindPlugin(language))
+ return language_plugin->GetPluginName();
+ return "";
+}
+
+TEST(FortranLanguage, LookupFortranLanguageByLanguageType) {
+ SubsystemRAII<FortranLanguage> langs;
+
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran77), "fortran");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran90), "fortran");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran95), "fortran");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran03), "fortran");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran08), "fortran");
+ EXPECT_EQ(GetPluginName(lldb::eLanguageTypeFortran18), "fortran");
+}
\ No newline at end of file
>From 7aa958564b46b8ac3cff05af00922696b6c28504 Mon Sep 17 00:00:00 2001
From: Iasonaskrpr <iaskarapro at gmail.com>
Date: Fri, 4 Sep 2026 21:07:44 +0300
Subject: [PATCH 2/2] [lldb][Fortran] Added DWARFASTParserFortran class and
added function to get the DWARFASTParserFortran from TypeSystemFortran
---
.../Plugins/SymbolFile/DWARF/CMakeLists.txt | 1 +
.../Plugins/SymbolFile/DWARF/DWARFASTParser.h | 2 +-
.../DWARF/DWARFASTParserFortran.cpp | 43 ++++++++++
.../SymbolFile/DWARF/DWARFASTParserFortran.h | 80 +++++++++++++++++++
.../TypeSystem/Fortran/TypeSystemFortran.cpp | 8 ++
.../TypeSystem/Fortran/TypeSystemFortran.h | 4 +
6 files changed, 137 insertions(+), 1 deletion(-)
create mode 100644 lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.cpp
create mode 100644 lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.h
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/CMakeLists.txt b/lldb/source/Plugins/SymbolFile/DWARF/CMakeLists.txt
index 3f7cf023ac21c..7aacc5019aa04 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/CMakeLists.txt
+++ b/lldb/source/Plugins/SymbolFile/DWARF/CMakeLists.txt
@@ -16,6 +16,7 @@ add_lldb_library(lldbPluginSymbolFileDWARF PLUGIN
DIERef.cpp
DWARFASTParser.cpp
DWARFASTParserClang.cpp
+ DWARFASTParserFortran.cpp
DWARFAttribute.cpp
DWARFBaseDIE.cpp
DWARFCompileUnit.cpp
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h
index 80f7becc1b24b..8f32874d788af 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParser.h
@@ -29,7 +29,7 @@ class SymbolFileDWARF;
class DWARFASTParser {
public:
- enum class Kind { DWARFASTParserClang };
+ enum class Kind { DWARFASTParserClang, DWARFASTParserFortran };
DWARFASTParser(Kind kind) : m_kind(kind) {}
virtual ~DWARFASTParser() = default;
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.cpp
new file mode 100644
index 0000000000000..734271bc67554
--- /dev/null
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.cpp
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the DWARF AST parser for the Fortran language.
+///
+//===----------------------------------------------------------------------===//
+
+#include "DWARFASTParserFortran.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+DWARFASTParserFortran::DWARFASTParserFortran(
+ lldb_private::TypeSystemFortran &m_ast)
+ : lldb_private::plugin::dwarf::DWARFASTParser(Kind::DWARFASTParserFortran),
+ m_ast(m_ast) {}
+
+DWARFASTParserFortran::~DWARFASTParserFortran() {}
+
+lldb::TypeSP DWARFASTParserFortran::ParseTypeFromDWARF(
+ const lldb_private::SymbolContext &sc,
+ const lldb_private::plugin::dwarf::DWARFDIE &die, bool *type_is_new_ptr) {
+ return lldb::TypeSP();
+}
+
+lldb_private::Function *DWARFASTParserFortran::ParseFunctionFromDWARF(
+ lldb_private::CompileUnit &comp_unit,
+ const lldb_private::plugin::dwarf::DWARFDIE &die,
+ lldb_private::AddressRanges ranges) {
+ return nullptr;
+}
+
+bool DWARFASTParserFortran::CompleteTypeFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die, lldb_private::Type *type,
+ const lldb_private::CompilerType &compiler_type) {
+ return false;
+}
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.h
new file mode 100644
index 0000000000000..827a2eb620aa8
--- /dev/null
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserFortran.h
@@ -0,0 +1,80 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file defines the DWARF AST parser for the Fortran language.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFASTPARSERFORTRAN_H
+#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFASTPARSERFORTRAN_H
+
+#include "DWARFASTParser.h"
+#include "Plugins/SymbolFile/DWARF/DWARFDIE.h"
+#include "Plugins/TypeSystem/Fortran/TypeSystemFortran.h"
+
+namespace lldb_private {
+class CompileUnit;
+class ExecutionContext;
+} // namespace lldb_private
+
+class DWARFASTParserFortran
+ : public lldb_private::plugin::dwarf::DWARFASTParser {
+public:
+ DWARFASTParserFortran(lldb_private::TypeSystemFortran &m_ast);
+
+ ~DWARFASTParserFortran() override;
+
+ lldb::TypeSP
+ ParseTypeFromDWARF(const lldb_private::SymbolContext &sc,
+ const lldb_private::plugin::dwarf::DWARFDIE &die,
+ bool *type_is_new_ptr) override;
+
+ lldb_private::Function *
+ ParseFunctionFromDWARF(lldb_private::CompileUnit &comp_unit,
+ const lldb_private::plugin::dwarf::DWARFDIE &die,
+ lldb_private::AddressRanges ranges) override;
+
+ bool CompleteTypeFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die,
+ lldb_private::Type *type,
+ const lldb_private::CompilerType &compiler_type) override;
+
+ lldb_private::ConstString ConstructDemangledNameFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die) override {
+ return lldb_private::ConstString();
+ }
+
+ lldb_private::CompilerDecl GetDeclForUIDFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die) override {
+ return lldb_private::CompilerDecl();
+ }
+
+ lldb_private::CompilerDeclContext GetDeclContextForUIDFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die) override {
+ return lldb_private::CompilerDeclContext();
+ }
+
+ lldb_private::CompilerDeclContext GetDeclContextContainingUIDFromDWARF(
+ const lldb_private::plugin::dwarf::DWARFDIE &die) override {
+ return lldb_private::CompilerDeclContext();
+ }
+
+ void EnsureAllDIEsInDeclContextHaveBeenParsed(
+ lldb_private::CompilerDeclContext decl_context) override {}
+
+ std::string GetDIEClassTemplateParams(
+ lldb_private::plugin::dwarf::DWARFDIE die) override {
+ return {};
+ }
+
+private:
+ lldb_private::TypeSystemFortran &m_ast;
+};
+
+#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFASTPARSERFORTRAN_H
diff --git a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
index f1466c4165c52..2e2af92d67ff6 100644
--- a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
+++ b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.cpp
@@ -16,6 +16,8 @@
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Target/Target.h"
+#include "Plugins/SymbolFile/DWARF/DWARFASTParserFortran.h"
+
using namespace lldb;
using namespace lldb_private;
using namespace llvm;
@@ -52,6 +54,12 @@ void TypeSystemFortran::Terminate() {
PluginManager::UnregisterPlugin(CreateInstance);
}
+plugin::dwarf::DWARFASTParser *TypeSystemFortran::GetDWARFParser() {
+ if (!m_dwarf_ast_parser_up)
+ m_dwarf_ast_parser_up = std::make_unique<DWARFASTParserFortran>(*this);
+ return m_dwarf_ast_parser_up.get();
+}
+
lldb::TypeSystemSP
TypeSystemFortran::CreateInstance(lldb::LanguageType language, Module *module,
Target *target) {
diff --git a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
index 6291d4c8131dc..afe14e46aa7ce 100644
--- a/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
+++ b/lldb/source/Plugins/TypeSystem/Fortran/TypeSystemFortran.h
@@ -36,6 +36,8 @@ class TypeSystemFortran : public TypeSystem {
static void Terminate();
+ plugin::dwarf::DWARFASTParser *GetDWARFParser() override;
+
static lldb::TypeSystemSP CreateInstance(lldb::LanguageType language,
Module *module, Target *target);
@@ -487,6 +489,8 @@ class TypeSystemFortran : public TypeSystem {
}
private:
+ std::unique_ptr<plugin::dwarf::DWARFASTParser> m_dwarf_ast_parser_up;
+
TypeSystemFortran(const TypeSystemFortran &) = delete;
const TypeSystemFortran &operator=(const TypeSystemFortran &) = delete;
};
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