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
getFpABIValue()14 uint8_t MipsABIFlagsSection::getFpABIValue() {
15 switch (FpABI) {
16 case FpABIKind::ANY:
17 return Mips::Val_GNU_MIPS_ABI_FP_ANY;
18 case FpABIKind::SOFT:
19 return Mips::Val_GNU_MIPS_ABI_FP_SOFT;
20 case FpABIKind::XX:
21 return Mips::Val_GNU_MIPS_ABI_FP_XX;
22 case FpABIKind::S32:
23 return Mips::Val_GNU_MIPS_ABI_FP_DOUBLE;
24 case FpABIKind::S64:
25 if (Is32BitABI)
26 return OddSPReg ? Mips::Val_GNU_MIPS_ABI_FP_64
27 : Mips::Val_GNU_MIPS_ABI_FP_64A;
28 return Mips::Val_GNU_MIPS_ABI_FP_DOUBLE;
29 }
30
31 llvm_unreachable("unexpected fp abi value");
32 }
33
getFpABIString(FpABIKind Value)34 StringRef MipsABIFlagsSection::getFpABIString(FpABIKind Value) {
35 switch (Value) {
36 case FpABIKind::XX:
37 return "xx";
38 case FpABIKind::S32:
39 return "32";
40 case FpABIKind::S64:
41 return "64";
42 default:
43 llvm_unreachable("unsupported fp abi value");
44 }
45 }
46
getCPR1SizeValue()47 uint8_t MipsABIFlagsSection::getCPR1SizeValue() {
48 if (FpABI == FpABIKind::XX)
49 return (uint8_t)Mips::AFL_REG_32;
50 return (uint8_t)CPR1Size;
51 }
52
53 namespace llvm {
operator <<(MCStreamer & OS,MipsABIFlagsSection & ABIFlagsSection)54 MCStreamer &operator<<(MCStreamer &OS, MipsABIFlagsSection &ABIFlagsSection) {
55 // Write out a Elf_Internal_ABIFlags_v0 struct
56 OS.EmitIntValue(ABIFlagsSection.getVersionValue(), 2); // version
57 OS.EmitIntValue(ABIFlagsSection.getISALevelValue(), 1); // isa_level
58 OS.EmitIntValue(ABIFlagsSection.getISARevisionValue(), 1); // isa_rev
59 OS.EmitIntValue(ABIFlagsSection.getGPRSizeValue(), 1); // gpr_size
60 OS.EmitIntValue(ABIFlagsSection.getCPR1SizeValue(), 1); // cpr1_size
61 OS.EmitIntValue(ABIFlagsSection.getCPR2SizeValue(), 1); // cpr2_size
62 OS.EmitIntValue(ABIFlagsSection.getFpABIValue(), 1); // fp_abi
63 OS.EmitIntValue(ABIFlagsSection.getISAExtensionValue(), 4); // isa_ext
64 OS.EmitIntValue(ABIFlagsSection.getASESetValue(), 4); // ases
65 OS.EmitIntValue(ABIFlagsSection.getFlags1Value(), 4); // flags1
66 OS.EmitIntValue(ABIFlagsSection.getFlags2Value(), 4); // flags2
67 return OS;
68 }
69 }
70