1 //===-- AVRTargetObjectFile.cpp - AVR Object Files ------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "AVRTargetObjectFile.h"
11 
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 #include "llvm/Support/ELF.h"
18 
19 #include "AVR.h"
20 
21 namespace llvm {
22 void AVRTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) {
23   Base::Initialize(Ctx, TM);
24   ProgmemDataSection =
25       Ctx.getELFSection(".progmem.data", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
26 }
27 
28 MCSection *
29 AVRTargetObjectFile::SelectSectionForGlobal(const GlobalObject *GO,
30                                             SectionKind Kind,
31                                             const TargetMachine &TM) const {
32   // Global values in flash memory are placed in the progmem.data section
33   // unless they already have a user assigned section.
34   if (AVR::isProgramMemoryAddress(GO) && !GO->hasSection())
35     return ProgmemDataSection;
36 
37   // Otherwise, we work the same way as ELF.
38   return Base::SelectSectionForGlobal(GO, Kind, TM);
39 }
40 } // end of namespace llvm
41 
42