| //===- MipsABIFlagsSection.cpp - Mips ELF ABI Flags Section ---------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "MCTargetDesc/MipsABIFlagsSection.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/MC/MCStreamer.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/MipsABIFlags.h" |
| |
| using namespace llvm; |
| |
| uint8_t MipsABIFlagsSection::getFpABIValue() { |
| switch (FpABI) { |
| case FpABIKind::ANY: |
| return Mips::Val_GNU_MIPS_ABI_FP_ANY; |
| case FpABIKind::SOFT: |
| return Mips::Val_GNU_MIPS_ABI_FP_SOFT; |
| case FpABIKind::XX: |
| return Mips::Val_GNU_MIPS_ABI_FP_XX; |
| case FpABIKind::S32: |
| return Mips::Val_GNU_MIPS_ABI_FP_DOUBLE; |
| case FpABIKind::S64: |
| if (Is32BitABI) |
| return OddSPReg ? Mips::Val_GNU_MIPS_ABI_FP_64 |
| : Mips::Val_GNU_MIPS_ABI_FP_64A; |
| return Mips::Val_GNU_MIPS_ABI_FP_DOUBLE; |
| } |
| |
| llvm_unreachable("unexpected fp abi value"); |
| } |
| |
| StringRef MipsABIFlagsSection::getFpABIString(FpABIKind Value) { |
| switch (Value) { |
| case FpABIKind::XX: |
| return "xx"; |
| case FpABIKind::S32: |
| return "32"; |
| case FpABIKind::S64: |
| return "64"; |
| default: |
| llvm_unreachable("unsupported fp abi value"); |
| } |
| } |
| |
| uint8_t MipsABIFlagsSection::getCPR1SizeValue() { |
| if (FpABI == FpABIKind::XX) |
| return (uint8_t)Mips::AFL_REG_32; |
| return (uint8_t)CPR1Size; |
| } |
| |
| namespace llvm { |
| |
| MCStreamer &operator<<(MCStreamer &OS, MipsABIFlagsSection &ABIFlagsSection) { |
| // Write out a Elf_Internal_ABIFlags_v0 struct |
| OS.EmitIntValue(ABIFlagsSection.getVersionValue(), 2); // version |
| OS.EmitIntValue(ABIFlagsSection.getISALevelValue(), 1); // isa_level |
| OS.EmitIntValue(ABIFlagsSection.getISARevisionValue(), 1); // isa_rev |
| OS.EmitIntValue(ABIFlagsSection.getGPRSizeValue(), 1); // gpr_size |
| OS.EmitIntValue(ABIFlagsSection.getCPR1SizeValue(), 1); // cpr1_size |
| OS.EmitIntValue(ABIFlagsSection.getCPR2SizeValue(), 1); // cpr2_size |
| OS.EmitIntValue(ABIFlagsSection.getFpABIValue(), 1); // fp_abi |
| OS.EmitIntValue(ABIFlagsSection.getISAExtensionValue(), 4); // isa_ext |
| OS.EmitIntValue(ABIFlagsSection.getASESetValue(), 4); // ases |
| OS.EmitIntValue(ABIFlagsSection.getFlags1Value(), 4); // flags1 |
| OS.EmitIntValue(ABIFlagsSection.getFlags2Value(), 4); // flags2 |
| return OS; |
| } |
| |
| } // end namespace llvm |