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 20 namespace llvm { 21 void 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 27 MCSection * 28 AVRTargetObjectFile::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() && Kind.isReadOnly()) 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