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