1 #include "AVRELFStreamer.h" 2 #include "AVRMCTargetDesc.h" 3 #include "llvm/BinaryFormat/ELF.h" 4 #include "llvm/MC/MCELFObjectWriter.h" 5 #include "llvm/MC/MCSubtargetInfo.h" 6 #include "llvm/TargetParser/SubtargetFeature.h" 7 8 namespace llvm { 9 10 static unsigned getEFlagsForFeatureSet(const FeatureBitset &Features) { 11 unsigned EFlags = 0; 12 13 // Set architecture 14 if (Features[AVR::ELFArchAVR1]) 15 EFlags |= ELF::EF_AVR_ARCH_AVR1; 16 else if (Features[AVR::ELFArchAVR2]) 17 EFlags |= ELF::EF_AVR_ARCH_AVR2; 18 else if (Features[AVR::ELFArchAVR25]) 19 EFlags |= ELF::EF_AVR_ARCH_AVR25; 20 else if (Features[AVR::ELFArchAVR3]) 21 EFlags |= ELF::EF_AVR_ARCH_AVR3; 22 else if (Features[AVR::ELFArchAVR31]) 23 EFlags |= ELF::EF_AVR_ARCH_AVR31; 24 else if (Features[AVR::ELFArchAVR35]) 25 EFlags |= ELF::EF_AVR_ARCH_AVR35; 26 else if (Features[AVR::ELFArchAVR4]) 27 EFlags |= ELF::EF_AVR_ARCH_AVR4; 28 else if (Features[AVR::ELFArchAVR5]) 29 EFlags |= ELF::EF_AVR_ARCH_AVR5; 30 else if (Features[AVR::ELFArchAVR51]) 31 EFlags |= ELF::EF_AVR_ARCH_AVR51; 32 else if (Features[AVR::ELFArchAVR6]) 33 EFlags |= ELF::EF_AVR_ARCH_AVR6; 34 else if (Features[AVR::ELFArchTiny]) 35 EFlags |= ELF::EF_AVR_ARCH_AVRTINY; 36 else if (Features[AVR::ELFArchXMEGA1]) 37 EFlags |= ELF::EF_AVR_ARCH_XMEGA1; 38 else if (Features[AVR::ELFArchXMEGA2]) 39 EFlags |= ELF::EF_AVR_ARCH_XMEGA2; 40 else if (Features[AVR::ELFArchXMEGA3]) 41 EFlags |= ELF::EF_AVR_ARCH_XMEGA3; 42 else if (Features[AVR::ELFArchXMEGA4]) 43 EFlags |= ELF::EF_AVR_ARCH_XMEGA4; 44 else if (Features[AVR::ELFArchXMEGA5]) 45 EFlags |= ELF::EF_AVR_ARCH_XMEGA5; 46 else if (Features[AVR::ELFArchXMEGA6]) 47 EFlags |= ELF::EF_AVR_ARCH_XMEGA6; 48 else if (Features[AVR::ELFArchXMEGA7]) 49 EFlags |= ELF::EF_AVR_ARCH_XMEGA7; 50 51 return EFlags; 52 } 53 54 AVRELFStreamer::AVRELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI) 55 : AVRTargetStreamer(S) { 56 ELFObjectWriter &W = getStreamer().getWriter(); 57 unsigned EFlags = W.getELFHeaderEFlags(); 58 59 EFlags |= getEFlagsForFeatureSet(STI.getFeatureBits()); 60 EFlags |= ELF::EF_AVR_LINKRELAX_PREPARED; 61 62 W.setELFHeaderEFlags(EFlags); 63 } 64 65 } // end namespace llvm 66