From d4a82f6f742be375d608f0193565568ac93e98c6 Mon Sep 17 00:00:00 2001
From: Aleksandr Urakov <aleksandr.urakov@jetbrains.com>
Date: Mon, 22 Oct 2018 07:18:08 +0000
Subject: [PDB] Extend IPDBSession's interface to retrieve frame data

Summary:
This patch just extends the `IPDBSession` interface to allow retrieving
of frame data through it, and adds an implementation over DIA. It is needed
for an implementation (for now with DIA) of the conversion from FPO programs
to DWARF expressions mentioned in D53086.

Reviewers: zturner, asmith, rnk

Reviewed By: asmith

Subscribers: mgorny, aprantl, JDevlieghere, llvm-commits

Differential Revision: https://reviews.llvm.org/D53324

llvm-svn: 344886
---
 llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp | 54 +++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp

(limited to 'llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp')

diff --git a/llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp b/llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp
new file mode 100644
index 00000000000..b904a2ff60a
--- /dev/null
+++ b/llvm/lib/DebugInfo/PDB/DIA/DIAFrameData.cpp
@@ -0,0 +1,54 @@
+//===- DIAFrameData.cpp - DIA impl. of IPDBFrameData -------------- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/PDB/DIA/DIAFrameData.h"
+#include "llvm/DebugInfo/PDB/DIA/DIASession.h"
+#include "llvm/DebugInfo/PDB/DIA/DIAUtils.h"
+
+using namespace llvm::pdb;
+
+DIAFrameData::DIAFrameData(const DIASession &PDBSession,
+                           CComPtr<IDiaFrameData> DiaFrameData)
+    : Session(PDBSession), FrameData(DiaFrameData) {}
+
+template <typename ArgType>
+ArgType
+PrivateGetDIAValue(IDiaFrameData *FrameData,
+                   HRESULT (__stdcall IDiaFrameData::*Method)(ArgType *)) {
+  ArgType Value;
+  if (S_OK == (FrameData->*Method)(&Value))
+    return static_cast<ArgType>(Value);
+
+  return ArgType();
+}
+
+uint32_t DIAFrameData::getAddressOffset() const {
+  return PrivateGetDIAValue(FrameData, &IDiaFrameData::get_addressOffset);
+}
+
+uint32_t DIAFrameData::getAddressSection() const {
+  return PrivateGetDIAValue(FrameData, &IDiaFrameData::get_addressSection);
+}
+
+uint32_t DIAFrameData::getLengthBlock() const {
+  return PrivateGetDIAValue(FrameData, &IDiaFrameData::get_lengthBlock);
+}
+
+std::string DIAFrameData::getProgram() const {
+  return invokeBstrMethod(*FrameData, &IDiaFrameData::get_program);
+}
+
+uint32_t DIAFrameData::getRelativeVirtualAddress() const {
+  return PrivateGetDIAValue(FrameData,
+                            &IDiaFrameData::get_relativeVirtualAddress);
+}
+
+uint64_t DIAFrameData::getVirtualAddress() const {
+  return PrivateGetDIAValue(FrameData, &IDiaFrameData::get_virtualAddress);
+}
-- 
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