1 //===-- MipsABIFlagsSection.cpp - Mips ELF ABI Flags Section ---*- C++ -*--===// 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 "MipsABIFlagsSection.h" 11 12 using namespace llvm; 13 14 uint8_t MipsABIFlagsSection::getFpABIValue() { 15 switch (FpABI) { 16 case FpABIKind::ANY: 17 return Val_GNU_MIPS_ABI_FP_ANY; 18 case FpABIKind::XX: 19 return Val_GNU_MIPS_ABI_FP_XX; 20 case FpABIKind::S32: 21 return Val_GNU_MIPS_ABI_FP_DOUBLE; 22 case FpABIKind::S64: 23 if (Is32BitABI) 24 return OddSPReg ? Val_GNU_MIPS_ABI_FP_64 : Val_GNU_MIPS_ABI_FP_64A; 25 return Val_GNU_MIPS_ABI_FP_DOUBLE; 26 } 27 28 llvm_unreachable("unexpected fp abi value"); 29 } 30 31 StringRef MipsABIFlagsSection::getFpABIString(FpABIKind Value) { 32 switch (Value) { 33 case FpABIKind::XX: 34 return "xx"; 35 case FpABIKind::S32: 36 return "32"; 37 case FpABIKind::S64: 38 return "64"; 39 default: 40 llvm_unreachable("unsupported fp abi value"); 41 } 42 } 43 44 uint8_t MipsABIFlagsSection::getCPR1SizeValue() { 45 if (FpABI == FpABIKind::XX) 46 return (uint8_t)AFL_REG_32; 47 return (uint8_t)CPR1Size; 48 } 49 50 namespace llvm { 51 MCStreamer &operator<<(MCStreamer &OS, MipsABIFlagsSection &ABIFlagsSection) { 52 // Write out a Elf_Internal_ABIFlags_v0 struct 53 OS.EmitIntValue(ABIFlagsSection.getVersionValue(), 2); // version 54 OS.EmitIntValue(ABIFlagsSection.getISALevelValue(), 1); // isa_level 55 OS.EmitIntValue(ABIFlagsSection.getISARevisionValue(), 1); // isa_rev 56 OS.EmitIntValue(ABIFlagsSection.getGPRSizeValue(), 1); // gpr_size 57 OS.EmitIntValue(ABIFlagsSection.getCPR1SizeValue(), 1); // cpr1_size 58 OS.EmitIntValue(ABIFlagsSection.getCPR2SizeValue(), 1); // cpr2_size 59 OS.EmitIntValue(ABIFlagsSection.getFpABIValue(), 1); // fp_abi 60 OS.EmitIntValue(ABIFlagsSection.getISAExtensionSetValue(), 4); // isa_ext 61 OS.EmitIntValue(ABIFlagsSection.getASESetValue(), 4); // ases 62 OS.EmitIntValue(ABIFlagsSection.getFlags1Value(), 4); // flags1 63 OS.EmitIntValue(ABIFlagsSection.getFlags2Value(), 4); // flags2 64 return OS; 65 } 66 } 67
