================ @@ -0,0 +1,2348 @@ +//===-- LVIRReader.cpp ----------------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// +// +// This implements the LVIRReader class. +// It supports LLVM text IR and bitcode format. +// +//===----------------------------------------------------------------------===// + +#include "llvm/DebugInfo/LogicalView/Readers/LVIRReader.h" +#include "llvm/CodeGen/DebugHandlerBase.h" +#include "llvm/DebugInfo/LogicalView/Core/LVLine.h" +#include "llvm/DebugInfo/LogicalView/Core/LVScope.h" +#include "llvm/DebugInfo/LogicalView/Core/LVSymbol.h" +#include "llvm/DebugInfo/LogicalView/Core/LVType.h" +#include "llvm/IR/DebugInfoMetadata.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/IntrinsicInst.h" +#include "llvm/IR/Module.h" +#include "llvm/IRReader/IRReader.h" +#include "llvm/Object/Error.h" +#include "llvm/Object/IRObjectFile.h" +#include "llvm/Support/FormatAdapters.h" +#include "llvm/Support/FormatVariadic.h" +#include "llvm/Support/SourceMgr.h" + +using namespace llvm; +using namespace llvm::object; +using namespace llvm::logicalview; + +#define DEBUG_TYPE "IRReader" + +// Extra debug traces. Default is false +#define DEBUG_ALL + +// These flavours of DINodes are not handled: +// DW_TAG_APPLE_property = 19896 +// DW_TAG_atomic_type = 71 +// DW_TAG_common_block = 26 +// DW_TAG_file_type = 41 +// DW_TAG_friend = 42 +// DW_TAG_generic_subrange = 69 +// DW_TAG_immutable_type = 75 +// DW_TAG_module = 30 + +// Create a logical element and setup the following information: +// - Name, DWARF tag, line +// - Collect any file information +LVElement *LVIRReader::constructElement(const DINode *DN) { + dwarf::Tag Tag = DN->getTag(); + LVElement *Element = createElement(Tag); + if (Element) { + Element->setTag(Tag); + addMD(DN, Element); + + StringRef Name = getMDName(DN); + if (!Name.empty()) + Element->setName(Name); + + // Record any file information. + if (const DIFile *File = getMDFile(DN)) + getOrCreateSourceID(File); + } + + return Element; +} + +void LVIRReader::mapFortranLanguage(unsigned DWLang) { + switch (DWLang) { + case dwarf::DW_LANG_Fortran77: + case dwarf::DW_LANG_Fortran90: + case dwarf::DW_LANG_Fortran95: + case dwarf::DW_LANG_Fortran03: + case dwarf::DW_LANG_Fortran08: + case dwarf::DW_LANG_Fortran18: + LanguageIsFortran = true; + break; + default: + LanguageIsFortran = false; + } +} + +// Looking at IR generated with the '-gdwarf -gsplit-dwarf=split' the only +// difference is setting the 'DICompileUnit::splitDebugFilename' to the +// name of the split filename: "xxx.dwo". +bool LVIRReader::includeMinimalInlineScopes() const { + return getCUNode()->getEmissionKind() == DICompileUnit::LineTablesOnly; +} + +// For the given 'DIFile' generate an index 1-based to indicate the +// source file where the logical element is declared. +// In DWARF v4, the files are 1-indexed. +// In DWARF v5, the files are 0-indexed. ---------------- jmorse wrote:
The DWARF differences are something that llvm-debuginfo-analyzer abstracts over, thus we probably don't need to mention it here. https://github.com/llvm/llvm-project/pull/135440 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
