MipsABIFlagsSection.cpp
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//===- 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