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//===--------- SectCreate.cpp - Emulate ld64's -sectcreate option ---------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/Orc/SectCreate.h"
#define DEBUG_TYPE "orc"
using namespace llvm::jitlink;
namespace llvm::orc {
void SectCreateMaterializationUnit::materialize(
std::unique_ptr<MaterializationResponsibility> R) {
auto G = std::make_unique<LinkGraph>(
"orc_sectcreate_" + SectName,
ObjLinkingLayer.getExecutionSession().getSymbolStringPool(),
ObjLinkingLayer.getExecutionSession().getTargetTriple(),
SubtargetFeatures(), getGenericEdgeKindName);
auto &Sect = G->createSection(SectName, MP);
auto Content = G->allocateContent(ArrayRef<char>(Data->getBuffer()));
auto &B = G->createContentBlock(Sect, Content, ExecutorAddr(), Alignment, 0);
for (auto &[Name, Info] : ExtraSymbols) {
auto L = Info.Flags.isStrong() ? Linkage::Strong : Linkage::Weak;
auto S = Info.Flags.isExported() ? Scope::Default : Scope::Hidden;
G->addDefinedSymbol(B, Info.Offset, *Name, 0, L, S, Info.Flags.isCallable(),
true);
}
ObjLinkingLayer.emit(std::move(R), std::move(G));
}
void SectCreateMaterializationUnit::discard(const JITDylib &JD,
const SymbolStringPtr &Name) {
ExtraSymbols.erase(Name);
}
MaterializationUnit::Interface SectCreateMaterializationUnit::getInterface(
const ExtraSymbolsMap &ExtraSymbols) {
SymbolFlagsMap SymbolFlags;
for (auto &[Name, Info] : ExtraSymbols)
SymbolFlags[Name] = Info.Flags;
return {std::move(SymbolFlags), nullptr};
}
} // End namespace llvm::orc.
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