a2c9146da1
Since #189401, LLVM and Clang generate `S_DEFRANGE_REGISTER_REL_INDIR` for indirect locations. This adds support in LLDB. The offset added after dereferencing is signed here - unlike in `S_REGREL32_INDIR` (at least that's the assumption). So I updated `MakeRegisterBasedIndirectLocationExpressionInternal` to handle the signedness. This is the reason the MSVC test was changed here. I didn't find a test case where LLVM emits the record with the `VFRAME` register. Other than that, the clang test is similar to the MSVC one except that the locations are slightly different.
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
//===-- DWARFLocationExpression.h -------------------------------*- 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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#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_DWARFLOCATIONEXPRESSION_H
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#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_DWARFLOCATIONEXPRESSION_H
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#include "lldb/lldb-forward.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/DebugInfo/CodeView/CodeView.h"
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#include "llvm/Support/Error.h"
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#include <map>
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namespace llvm {
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class APSInt;
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class StringRef;
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namespace codeview {
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class TypeIndex;
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}
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namespace pdb {
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class TpiStream;
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}
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} // namespace llvm
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namespace lldb_private {
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namespace npdb {
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struct MemberValLocation {
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uint16_t reg_id;
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uint16_t reg_offset;
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bool is_at_reg = true;
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};
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DWARFExpression
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MakeEnregisteredLocationExpression(llvm::codeview::RegisterId reg,
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lldb::ModuleSP module);
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DWARFExpression MakeRegRelLocationExpression(llvm::codeview::RegisterId reg,
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int32_t offset,
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lldb::ModuleSP module);
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DWARFExpression
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MakeRegRelIndirLocationExpression(llvm::codeview::RegisterId reg,
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int32_t offset, int32_t offset_in_udt,
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lldb::ModuleSP module);
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DWARFExpression MakeVFrameRelLocationExpression(llvm::StringRef fpo_program,
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int32_t offset,
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lldb::ModuleSP module);
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DWARFExpression
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MakeVFrameRelIndirLocationExpression(llvm::StringRef fpo_program,
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int32_t offset, int32_t offset_in_udt,
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lldb::ModuleSP module);
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DWARFExpression MakeGlobalLocationExpression(uint16_t section, uint32_t offset,
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lldb::ModuleSP module);
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llvm::Expected<DWARFExpression> MakeConstantLocationExpression(
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llvm::codeview::TypeIndex underlying_ti, llvm::pdb::TpiStream &tpi,
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const llvm::APSInt &constant, lldb::ModuleSP module);
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DWARFExpression MakeEnregisteredLocationExpressionForComposite(
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const std::map<uint64_t, MemberValLocation> &offset_to_location,
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std::map<uint64_t, size_t> &offset_to_size, size_t total_size,
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lldb::ModuleSP module);
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} // namespace npdb
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} // namespace lldb_private
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#endif
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