1*9880d681SAndroid Build Coastguard Worker //===-- X86WinCOFFObjectWriter.cpp - X86 Win COFF Writer ------------------===//
2*9880d681SAndroid Build Coastguard Worker //
3*9880d681SAndroid Build Coastguard Worker // The LLVM Compiler Infrastructure
4*9880d681SAndroid Build Coastguard Worker //
5*9880d681SAndroid Build Coastguard Worker // This file is distributed under the University of Illinois Open Source
6*9880d681SAndroid Build Coastguard Worker // License. See LICENSE.TXT for details.
7*9880d681SAndroid Build Coastguard Worker //
8*9880d681SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===//
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Worker #include "MCTargetDesc/X86FixupKinds.h"
11*9880d681SAndroid Build Coastguard Worker #include "MCTargetDesc/X86MCTargetDesc.h"
12*9880d681SAndroid Build Coastguard Worker #include "llvm/MC/MCExpr.h"
13*9880d681SAndroid Build Coastguard Worker #include "llvm/MC/MCValue.h"
14*9880d681SAndroid Build Coastguard Worker #include "llvm/MC/MCWinCOFFObjectWriter.h"
15*9880d681SAndroid Build Coastguard Worker #include "llvm/Support/COFF.h"
16*9880d681SAndroid Build Coastguard Worker #include "llvm/Support/ErrorHandling.h"
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker using namespace llvm;
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Worker namespace llvm {
21*9880d681SAndroid Build Coastguard Worker class MCObjectWriter;
22*9880d681SAndroid Build Coastguard Worker }
23*9880d681SAndroid Build Coastguard Worker
24*9880d681SAndroid Build Coastguard Worker namespace {
25*9880d681SAndroid Build Coastguard Worker class X86WinCOFFObjectWriter : public MCWinCOFFObjectTargetWriter {
26*9880d681SAndroid Build Coastguard Worker public:
27*9880d681SAndroid Build Coastguard Worker X86WinCOFFObjectWriter(bool Is64Bit);
28*9880d681SAndroid Build Coastguard Worker ~X86WinCOFFObjectWriter() override;
29*9880d681SAndroid Build Coastguard Worker
30*9880d681SAndroid Build Coastguard Worker unsigned getRelocType(const MCValue &Target, const MCFixup &Fixup,
31*9880d681SAndroid Build Coastguard Worker bool IsCrossSection,
32*9880d681SAndroid Build Coastguard Worker const MCAsmBackend &MAB) const override;
33*9880d681SAndroid Build Coastguard Worker };
34*9880d681SAndroid Build Coastguard Worker }
35*9880d681SAndroid Build Coastguard Worker
X86WinCOFFObjectWriter(bool Is64Bit)36*9880d681SAndroid Build Coastguard Worker X86WinCOFFObjectWriter::X86WinCOFFObjectWriter(bool Is64Bit)
37*9880d681SAndroid Build Coastguard Worker : MCWinCOFFObjectTargetWriter(Is64Bit ? COFF::IMAGE_FILE_MACHINE_AMD64
38*9880d681SAndroid Build Coastguard Worker : COFF::IMAGE_FILE_MACHINE_I386) {}
39*9880d681SAndroid Build Coastguard Worker
~X86WinCOFFObjectWriter()40*9880d681SAndroid Build Coastguard Worker X86WinCOFFObjectWriter::~X86WinCOFFObjectWriter() {}
41*9880d681SAndroid Build Coastguard Worker
getRelocType(const MCValue & Target,const MCFixup & Fixup,bool IsCrossSection,const MCAsmBackend & MAB) const42*9880d681SAndroid Build Coastguard Worker unsigned X86WinCOFFObjectWriter::getRelocType(const MCValue &Target,
43*9880d681SAndroid Build Coastguard Worker const MCFixup &Fixup,
44*9880d681SAndroid Build Coastguard Worker bool IsCrossSection,
45*9880d681SAndroid Build Coastguard Worker const MCAsmBackend &MAB) const {
46*9880d681SAndroid Build Coastguard Worker unsigned FixupKind = IsCrossSection ? FK_PCRel_4 : Fixup.getKind();
47*9880d681SAndroid Build Coastguard Worker
48*9880d681SAndroid Build Coastguard Worker MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
49*9880d681SAndroid Build Coastguard Worker MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
50*9880d681SAndroid Build Coastguard Worker
51*9880d681SAndroid Build Coastguard Worker if (getMachine() == COFF::IMAGE_FILE_MACHINE_AMD64) {
52*9880d681SAndroid Build Coastguard Worker switch (FixupKind) {
53*9880d681SAndroid Build Coastguard Worker case FK_PCRel_4:
54*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte:
55*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte_movq_load:
56*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte_relax:
57*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte_relax_rex:
58*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_REL32;
59*9880d681SAndroid Build Coastguard Worker case FK_Data_4:
60*9880d681SAndroid Build Coastguard Worker case X86::reloc_signed_4byte:
61*9880d681SAndroid Build Coastguard Worker case X86::reloc_signed_4byte_relax:
62*9880d681SAndroid Build Coastguard Worker if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32)
63*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_ADDR32NB;
64*9880d681SAndroid Build Coastguard Worker if (Modifier == MCSymbolRefExpr::VK_SECREL)
65*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_SECREL;
66*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_ADDR32;
67*9880d681SAndroid Build Coastguard Worker case FK_Data_8:
68*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_ADDR64;
69*9880d681SAndroid Build Coastguard Worker case FK_SecRel_2:
70*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_SECTION;
71*9880d681SAndroid Build Coastguard Worker case FK_SecRel_4:
72*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_SECREL;
73*9880d681SAndroid Build Coastguard Worker default:
74*9880d681SAndroid Build Coastguard Worker llvm_unreachable("unsupported relocation type");
75*9880d681SAndroid Build Coastguard Worker }
76*9880d681SAndroid Build Coastguard Worker } else if (getMachine() == COFF::IMAGE_FILE_MACHINE_I386) {
77*9880d681SAndroid Build Coastguard Worker switch (FixupKind) {
78*9880d681SAndroid Build Coastguard Worker case FK_PCRel_4:
79*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte:
80*9880d681SAndroid Build Coastguard Worker case X86::reloc_riprel_4byte_movq_load:
81*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_I386_REL32;
82*9880d681SAndroid Build Coastguard Worker case FK_Data_4:
83*9880d681SAndroid Build Coastguard Worker case X86::reloc_signed_4byte:
84*9880d681SAndroid Build Coastguard Worker case X86::reloc_signed_4byte_relax:
85*9880d681SAndroid Build Coastguard Worker if (Modifier == MCSymbolRefExpr::VK_COFF_IMGREL32)
86*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_I386_DIR32NB;
87*9880d681SAndroid Build Coastguard Worker if (Modifier == MCSymbolRefExpr::VK_SECREL)
88*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_AMD64_SECREL;
89*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_I386_DIR32;
90*9880d681SAndroid Build Coastguard Worker case FK_SecRel_2:
91*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_I386_SECTION;
92*9880d681SAndroid Build Coastguard Worker case FK_SecRel_4:
93*9880d681SAndroid Build Coastguard Worker return COFF::IMAGE_REL_I386_SECREL;
94*9880d681SAndroid Build Coastguard Worker default:
95*9880d681SAndroid Build Coastguard Worker llvm_unreachable("unsupported relocation type");
96*9880d681SAndroid Build Coastguard Worker }
97*9880d681SAndroid Build Coastguard Worker } else
98*9880d681SAndroid Build Coastguard Worker llvm_unreachable("Unsupported COFF machine type.");
99*9880d681SAndroid Build Coastguard Worker }
100*9880d681SAndroid Build Coastguard Worker
createX86WinCOFFObjectWriter(raw_pwrite_stream & OS,bool Is64Bit)101*9880d681SAndroid Build Coastguard Worker MCObjectWriter *llvm::createX86WinCOFFObjectWriter(raw_pwrite_stream &OS,
102*9880d681SAndroid Build Coastguard Worker bool Is64Bit) {
103*9880d681SAndroid Build Coastguard Worker MCWinCOFFObjectTargetWriter *MOTW = new X86WinCOFFObjectWriter(Is64Bit);
104*9880d681SAndroid Build Coastguard Worker return createWinCOFFObjectWriter(MOTW, OS);
105*9880d681SAndroid Build Coastguard Worker }
106