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//===--- DebugInfoSupport.h ---- Utils for debug info support ---*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Utilities to preserve and parse debug info from LinkGraphs.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_DEBUGINFOSUPPORT_H
#define LLVM_EXECUTIONENGINE_ORC_DEBUGINFOSUPPORT_H
#include "llvm/ExecutionEngine/Orc/Core.h"
#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
namespace llvm {
namespace orc {
Error preserveDebugSections(jitlink::LinkGraph &G);
// The backing stringmap is also returned, for memory liftime management.
Expected<std::pair<std::unique_ptr<DWARFContext>,
StringMap<std::unique_ptr<MemoryBuffer>>>>
createDWARFContext(jitlink::LinkGraph &G);
// Thin wrapper around preserveDebugSections to be used as a standalone plugin.
class DebugInfoPreservationPlugin : public ObjectLinkingLayer::Plugin {
public:
void modifyPassConfig(MaterializationResponsibility &MR,
jitlink::LinkGraph &LG,
jitlink::PassConfiguration &PassConfig) override {
PassConfig.PrePrunePasses.push_back(preserveDebugSections);
}
Error notifyRemovingResources(JITDylib &JD, ResourceKey K) override {
// Do nothing.
return Error::success();
}
Error notifyFailed(MaterializationResponsibility &MR) override {
// Do nothing.
return Error::success();
}
void notifyTransferringResources(JITDylib &JD, ResourceKey DstKey,
ResourceKey SrcKey) override {
// Do nothing.
}
static Expected<std::unique_ptr<DebugInfoPreservationPlugin>> Create() {
return std::make_unique<DebugInfoPreservationPlugin>();
}
};
} // namespace orc
} // namespace llvm
#endif
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