forked from OSchip/llvm-project
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
//===- 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
|