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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
//===- SymbolRecordHelpers.cpp ----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/CodeView/SymbolRecordHelpers.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
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using namespace llvm;
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using namespace llvm::codeview;
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template <typename RecordT> RecordT createRecord(const CVSymbol &sym) {
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RecordT record(static_cast<SymbolRecordKind>(sym.kind()));
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cantFail(SymbolDeserializer::deserializeAs<RecordT>(sym, record));
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return record;
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}
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uint32_t llvm::codeview::getScopeEndOffset(const CVSymbol &Sym) {
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assert(symbolOpensScope(Sym.kind()));
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switch (Sym.kind()) {
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case SymbolKind::S_GPROC32:
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case SymbolKind::S_LPROC32:
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case SymbolKind::S_GPROC32_ID:
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case SymbolKind::S_LPROC32_ID:
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case SymbolKind::S_LPROC32_DPC:
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case SymbolKind::S_LPROC32_DPC_ID: {
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ProcSym Proc = createRecord<ProcSym>(Sym);
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return Proc.End;
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}
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case SymbolKind::S_BLOCK32: {
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BlockSym Block = createRecord<BlockSym>(Sym);
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return Block.End;
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}
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case SymbolKind::S_THUNK32: {
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Thunk32Sym Thunk = createRecord<Thunk32Sym>(Sym);
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return Thunk.End;
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}
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case SymbolKind::S_INLINESITE: {
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InlineSiteSym Site = createRecord<InlineSiteSym>(Sym);
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return Site.End;
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}
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default:
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assert(false && "Unknown record type");
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return 0;
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}
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}
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uint32_t
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llvm::codeview::getScopeParentOffset(const llvm::codeview::CVSymbol &Sym) {
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assert(symbolOpensScope(Sym.kind()));
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switch (Sym.kind()) {
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case SymbolKind::S_GPROC32:
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case SymbolKind::S_LPROC32:
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case SymbolKind::S_GPROC32_ID:
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case SymbolKind::S_LPROC32_ID:
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case SymbolKind::S_LPROC32_DPC:
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case SymbolKind::S_LPROC32_DPC_ID: {
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ProcSym Proc = createRecord<ProcSym>(Sym);
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return Proc.Parent;
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}
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case SymbolKind::S_BLOCK32: {
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BlockSym Block = createRecord<BlockSym>(Sym);
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return Block.Parent;
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}
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case SymbolKind::S_THUNK32: {
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Thunk32Sym Thunk = createRecord<Thunk32Sym>(Sym);
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return Thunk.Parent;
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}
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case SymbolKind::S_INLINESITE: {
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InlineSiteSym Site = createRecord<InlineSiteSym>(Sym);
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return Site.Parent;
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}
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default:
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assert(false && "Unknown record type");
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return 0;
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}
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}
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CVSymbolArray
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llvm::codeview::limitSymbolArrayToScope(const CVSymbolArray &Symbols,
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uint32_t ScopeBegin) {
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CVSymbol Opener = *Symbols.at(ScopeBegin);
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assert(symbolOpensScope(Opener.kind()));
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uint32_t EndOffset = getScopeEndOffset(Opener);
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CVSymbol Closer = *Symbols.at(EndOffset);
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EndOffset += Closer.RecordData.size();
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return Symbols.substream(ScopeBegin, EndOffset);
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}
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