1//===-- AVRTargetObjectFile.cpp - AVR Object Files ------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "AVRTargetObjectFile.h"
10
11#include "llvm/BinaryFormat/ELF.h"
12#include "llvm/IR/DerivedTypes.h"
13#include "llvm/IR/GlobalValue.h"
14#include "llvm/IR/Mangler.h"
15#include "llvm/MC/MCContext.h"
16#include "llvm/MC/MCSectionELF.h"
17
18#include "AVR.h"
19
20namespace llvm {
21void AVRTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) {
22  Base::Initialize(Ctx, TM);
23  ProgmemDataSection =
24      Ctx.getELFSection(".progmem.data", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
25}
26
27MCSection *
28AVRTargetObjectFile::SelectSectionForGlobal(const GlobalObject *GO,
29                                            SectionKind Kind,
30                                            const TargetMachine &TM) const {
31  // Global values in flash memory are placed in the progmem.data section
32  // unless they already have a user assigned section.
33  if (AVR::isProgramMemoryAddress(GO) && !GO->hasSection())
34    return ProgmemDataSection;
35
36  // Otherwise, we work the same way as ELF.
37  return Base::SelectSectionForGlobal(GO, Kind, TM);
38}
39} // end of namespace llvm
40
41