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